diff options
| author | Manish Pandey <manish.pandey2@arm.com> | 2021-11-18 16:00:01 +0100 |
|---|---|---|
| committer | TrustedFirmware Code Review <review@review.trustedfirmware.org> | 2021-11-18 16:00:01 +0100 |
| commit | 5d26e27abc7180506e9fa522435ab0b365f2f0ea (patch) | |
| tree | 14ce97a34abdf43d14d9de0d5defdd42c60be50d | |
| parent | 7300434afc4d88e920aeac460b17fa2277a61e6b (diff) | |
| parent | 953910b06ab16b3c900fc98387bef92ceb6364cb (diff) | |
| download | arm-trusted-firmware-5d26e27abc7180506e9fa522435ab0b365f2f0ea.tar.gz | |
Merge changes from topic "ck/changelog" into integration
* changes:
docs(changelog): categorize scopes
docs(commit-style): add commit style documentation
build(docs): introduce release script
build(docs): add support for Markdown documentation
build(hooks): add commitlint checks for trailers
build(npm): add Standard Version v9.3.2
build(npm): add additional package metadata
build(npm): add license field
build(npm): update Husky to v7.0.4
build(npm): update commitlint to v14.1.0
build(npm): update lockfile format to v2
docs(prerequisites): update to Node.js v16
build(docs): update Python dependencies
build(docs): pin Python dependencies
25 files changed, 10303 insertions, 4977 deletions
diff --git a/.commitlintrc.js b/.commitlintrc.js new file mode 100644 index 000000000..3bd68bb6c --- /dev/null +++ b/.commitlintrc.js @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2021, Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* eslint-env es6 */ + +"use strict"; + +const cz = require("./.cz.json"); +const { "trailer-exists": trailerExists } = require("@commitlint/rules").default; + +/* + * Recursively fetch the project's supported scopes from the Commitizen configuration file. We use + * permit only the blessed scope for each section to encourage developers to use a consistent scope + * scheme. + */ +function getScopes(sections) { + return sections.flatMap(section => { + const scopes = section.scopes; + const subscopes = getScopes(section.sections || []); + + const scope = scopes ? [ scopes[0] ] : []; /* Only use the blessed scope */ + + return scope.concat(subscopes); + }) +}; + +const scopes = getScopes(cz.sections); /* Contains every blessed scope */ + +module.exports = { + extends: ["@commitlint/config-conventional"], + plugins: [ + { + rules: { + "signed-off-by-exists": trailerExists, + "change-id-exists": trailerExists, + }, + }, + ], + rules: { + "body-max-line-length": [1, "always", cz.maxLineWidth], /* Warning */ + "header-max-length": [1, "always", cz.maxHeaderWidth], /* Warning */ + + "change-id-exists": [1, "always", "Change-Id:"], /* Warning */ + "signed-off-by-exists": [1, "always", "Signed-off-by:"], /* Warning */ + + "scope-case": [2, "always", "kebab-case"], /* Error */ + "scope-enum": [1, "always", scopes] /* Warning */ + }, +}; @@ -1,5 +1,826 @@ { "path": "./node_modules/cz-conventional-changelog", "maxHeaderWidth": 50, - "maxLineWidth": 72 -}
\ No newline at end of file + "maxLineWidth": 72, + "types": [ + { + "type": "feat", + "title": "New Features", + "description": "A new feature" + }, + { + "type": "fix", + "title": "Resolved Issues", + "description": "A bug fix" + }, + { + "type": "build", + "title": "Build System", + "description": "Changes that affect the build system or external dependencies", + "hidden": true + }, + { + "type": "ci", + "title": "Continuous Integration", + "description": "Changes to our CI configuration files and scripts", + "hidden": true + }, + { + "type": "docs", + "title": "Build System", + "description": "Documentation-only changes", + "hidden": true + }, + { + "type": "perf", + "title": "Performance Improvements", + "description": "A code change that improves performance", + "hidden": true + }, + { + "type": "refactor", + "title": "Code Refactoring", + "description": "A code change that neither fixes a bug nor adds a feature", + "hidden": true + }, + { + "type": "revert", + "title": "Reverted Changes", + "description": "Changes that revert a previous change", + "hidden": true + }, + { + "type": "style", + "title": "Style", + "description": "Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc.)", + "hidden": true + }, + { + "type": "test", + "title": "Tests", + "description": "Adding missing tests or correcting existing tests", + "hidden": true + }, + { + "type": "chore", + "title": "Miscellaneous", + "description": "Any other change", + "hidden": true + } + ], + "sections": [ + { + "title": "Architecture", + "sections": [ + { + "title": "Activity Monitors Extension (FEAT_AMU)", + "scopes": ["amu"] + }, + { + "title": "Support for the `HCRX_EL2` register (FEAT_HCX)", + "scopes": ["hcx"] + }, + { + "title": "Memory Partitioning and Monitoring (MPAM) Extension (FEAT_MPAM)", + "scopes": ["mpam"] + }, + { + "title": "Scalable Matrix Extension (FEAT_SME)", + "scopes": ["sme"] + }, + { + "title": "Scalable Vector Extension (FEAT_SVE)", + "scopes": ["sve"] + }, + { + "title": "Trace Buffer Extension (FEAT_TRBE)", + "scopes": ["trbe"] + }, + { + "title": "Self-hosted Trace Extensions (FEAT_TRF)", + "scopes": ["trf", "sys_reg_trace"] + } + ] + }, + { + "title": "Platforms", + "sections": [ + { + "title": "Allwinner", + "scopes": ["allwinner", "plat/allwinner"] + }, + { + "title": "Arm", + "scopes": ["arm", "plat/arm"], + "sections": [ + { + "title": "FPGA", + "scopes": ["fpga", "arm_fgpa", "arm_fpga", "plat/arm_fpga"] + }, + { + "title": "FVP", + "scopes": ["fvp", "plat/fvp"] + }, + { + "title": "FVP-R", + "scopes": ["fvp-r", "fvp_r"] + }, + { + "title": "Juno", + "scopes": ["juno"] + }, + { + "title": "Morello", + "scopes": ["morello"] + }, + { + "title": "RD", + "scopes": ["rd"], + "sections": [ + { + "title": "RD-N2", + "scopes": ["rdn2", "board/rdn2"] + } + ] + }, + { + "title": "SGI", + "scopes": ["sgi", "plat/sgi", "plat/arm/sgi" ] + }, + { + "title": "TC", + "scopes": ["tc"], + "sections": [ + { + "title": "TC0", + "scopes": ["tc0", "plat/tc0"] + } + ] + } + ] + }, + { + "title": "Marvell", + "scopes": ["marvell", "plat/marvell"], + "sections": [ + { + "title": "Armada", + "scopes": ["armada", "plat/marvell/armada"], + "sections": [ + { + "title": "A3K", + "scopes": ["a3k", "plat/marvell/a3k"] + }, + { + "title": "A8K", + "scopes": ["a8k", "plat/marvell/a8k"] + } + ] + } + ] + }, + { + "title": "MediaTek", + "scopes": ["mediatek", "plat/mediatek/common", "plat/mediatek"], + "sections": [ + { + "title": "MT8183", + "scopes": ["mt8183", "plat/mediatek/mt8183"] + }, + { + "title": "MT8192", + "scopes": ["mt8192", "plat/mdeiatek/mt8192"] + }, + { + "title": "MT8195", + "scopes": ["mt8195", "plat/mediatek/me8195", "plat/mediatek/mt8195", "plat/mdeiatek/mt8195"] + } + ] + }, + { + "title": "NVIDIA", + "scopes": ["nvidia"], + "sections": [ + { + "title": "Tegra", + "scopes": ["tegra", "plat/tegra"], + "sections": [ + { + "title": "Tegra 132", + "scopes": ["tegra132"] + } + ] + } + ] + }, + { + "title": "NXP", + "scopes": ["nxp", "plat/nxp", "plat/nxp/common"], + "sections": [ + { + "title": "i.MX", + "scopes": ["imx", "plat/imx", "plat/imx/imx"], + "sections": [ + { + "title": "i.MX 8M", + "scopes": ["imx8m", "plat/imx8m", "plat/imx/imx8m"], + "sections": [ + { + "title": "i.MX 8M Mini", + "scopes": ["imx8mm", "plat/imx/imx8m/imx8mm"] + }, + { + "title": "i.MX 8M Plus", + "scopes": ["imx8mp", "plat/imx/imx8m/imx8mp"] + } + ] + } + ] + }, + { + "title": "Layerscape", + "scopes": ["layerscape", "docs/nxp/layerscape"], + "sections": [ + { + "title": "LX2", + "scopes": ["lx2", "plat/nxp/lx2"], + "sections": [ + { + "title": "LX216", + "scopes": ["lx216", "plat/nxp/lx216x"], + "sections": [ + { + "title": "LX2160", + "scopes": ["lx2160", "plat/soc-lx2160"] + } + ] + }, + { + "title": "LS1028A", + "scopes": ["ls1028a", "plat/nxp/ls1028a"], + "sections": [ + { + "title": "LS1028ARDB", + "scopes": ["ls1028ardb", "plat/nxp/ls1028ardb"] + } + ] + } + ] + } + ] + } + ] + }, + { + "title": "QEMU", + "scopes": ["qemu", "plat/qemu"] + }, + { + "title": "QTI", + "scopes": ["qti"], + "sections": [ + { + "title": "SC1780", + "scopes": ["sc7180", "plat/qti/sc7180"] + }, + { + "title": "SC7280", + "scopes": ["sc7280", "plat/qti/sc7280"] + } + ] + }, + { + "title": "Raspberry Pi", + "scopes": ["rpi"], + "sections": [ + { + "title": "Raspberry Pi 4", + "scopes": ["rpi4"] + } + ] + }, + { + "title": "Renesas", + "scopes": ["renesas"], + "sections": [ + { + "title": "R-Car", + "scopes": ["rcar", "plat/rcar"], + "sections": [ + { + "title": "R-Car 3", + "scopes": ["rcar3", "plat/rcar3"] + } + ] + } + ] + }, + { + "title": "Rockchip", + "scopes": ["rockchip"], + "sections": [ + { + "title": "RK3399", + "scopes": ["rk3399", "rockchip/rk3399", "rk3399/suspend"] + } + ] + }, + { + "title": "Socionext", + "scopes": ["socionext"], + "sections": [ + { + "title": "Synquacer", + "scopes": ["synquacer", "plat/synquacer"] + } + ] + }, + { + "title": "ST", + "scopes": ["st", "plat/st"], + "sections": [ + { + "title": "ST32MP1", + "scopes": ["stm32mp1", "plat/st/stm32mp1"] + } + ] + }, + { + "title": "Xilinx", + "scopes": ["xilinx", "plat/xilinx"], + "sections": [ + { + "title": "Versal", + "scopes": ["versal", "plat/xilinx/versal/include", "plat/xilinx/versal", "plat/versal"] + }, + { + "title": "ZynqMP", + "scopes": ["zynqmp", "plat/zynqmp", "plat/xilinx/zynqmp"] + } + ] + } + ] + }, + { + "title": "Bootloader Images", + "scopes": ["bl", "bl_common"], + "sections": [ + { + "title": "BL1", + "scopes": ["bl1"] + }, + { + "title": "BL2", + "scopes": ["bl2"] + } + ] + }, + { + "title": "Services", + "scopes": ["services"], + "sections": [ + { + "title": "FF-A", + "scopes": ["ffa", "ff-a"] + }, + { + "title": "RME", + "scopes": ["rme"] + }, + { + "title": "SPM", + "scopes": ["spm", "spmc", "spmd", "SPMD", "spm_mm"] + } + ] + }, + { + "title": "Libraries", + "sections": [ + { + "title": "CPU Support", + "scopes": ["cpus", "cpu", "errata", "errata_report"] + }, + { + "title": "EL3 Runtime", + "scopes": ["el3-runtime", "el3_runtime"] + }, + { + "title": "FCONF", + "scopes": ["fconf"] + }, + { + "title": "MPMM", + "scopes": ["mpmm"] + }, + { + "title": "OP-TEE", + "scopes": ["optee", "lib/optee"] + }, + { + "title": "PSCI", + "scopes": ["psci"] + }, + { + "title": "GPT", + "scopes": ["gpt", "gpt_rme"] + }, + { + "title": "SMCCC", + "scopes": ["smccc"] + }, + { + "title": "Translation Tables", + "scopes": ["xlat"] + } + ] + }, + { + "title": "Drivers", + "sections": [ + { + "title": "Authentication", + "scopes": ["auth", "driver/auth"], + "sections": [ + { + "title": "CryptoCell-713", + "scopes": ["cc-713"] + } + ] + }, + { + "title": "FWU", + "scopes": ["fwu", "fwu_metadata"] + }, + { + "title": "I/O", + "scopes": ["io"], + "sections": [ + { + "title": "MTD", + "scopes": ["mtd", "io_mtd"] + } + ] + }, + { + "title": "Measured Boot", + "scopes": ["measured-boot", "measured boot", "measured_boot"] + }, + { + "title": "MMC", + "scopes": ["mmc", "drivers/mmc"] + }, + { + "title": "MTD", + "scopes": ["mtd", "drivers/mtd"], + "sections": [ + { + "title": "NAND", + "scopes": ["nand"], + "sections": [ + { + "title": "SPI NAND", + "scopes": ["spi-nand", "spi_nand"] + } + ] + } + ] + }, + { + "title": "SCMI", + "scopes": ["scmi", "scmi_common", "drivers/scmi-msg"] + }, + { + "title": "UFS", + "scopes": ["ufs"] + }, + { + "title": "Arm", + "scopes": ["arm-drivers"], + "sections": [ + { + "title": "Ethos-N", + "scopes": ["ethos-n", "drivers/arm/ethosn"] + }, + { + "title": "GIC", + "scopes": ["gic"], + "sections": [ + { + "title": "GICv3", + "scopes": ["gicv3"], + "sections": [ + { + "title": "GIC-600AE", + "scopes": ["gic600ae"] + } + ] + } + ] + }, + { + "title": "TZC", + "scopes": ["tzc"], + "sections": [ + { + "title": "TZC-400", + "scopes": ["tzc400", "drivers/tzc400"] + } + ] + } + ] + }, + { + "title": "Marvell", + "scopes": ["marvell-drivers"], + "sections": [ + { + "title": "COMPHY", + "scopes": ["marvell-comphy", "drivers/marvell/comphy"], + "sections": [ + { + "title": "Armada 3700", + "scopes": ["marvell-comphy-3700", "drivers/marvell/comphy-3700"] + }, + { + "title": "CP110", + "scopes": ["marvell-comphy-cp110", "drivers/marvell/comphy-cp110"] + } + ] + }, + { + "title": "UART", + "scopes": ["marvell-uart", "plat/marvell/uart"] + }, + { + "title": "Armada", + "scopes": ["armada-drivers"], + "sections": [ + { + "title": "A3K", + "scopes": ["a3k-drivers"], + "sections": [ + { + "title": "A3720", + "scopes": ["a3720-uart", "plat/marvell/a3720/uart"] + } + ] + } + ] + } + ] + }, + { + "title": "MediaTek", + "scopes": ["mediatek-drivers"], + "sections": [ + { + "title": "APU", + "scopes": ["mediatek-apu", "plat/mediatek/apu"] + }, + { + "title": "EMI MPU", + "scopes": ["mediatek-emi-mpu", "plat/mediatek/mpu"] + }, + { + "title": "PMIC Wrapper", + "scopes": ["mediatek-pmic-wrapper", "plat/mediatek/pmic_wrap"] + }, + { + "title": "MT8192", + "scopes": ["mt8192-drivers"], + "sections": [ + { + "title": "SPM", + "scopes": ["mt8192-spm", "mediatek/mt8192/spm"] + } + ] + } + ] + }, + { + "title": "NXP", + "scopes": ["nxp-drivers"], + "sections": [ + { + "title": "DCFG", + "scopes": ["nxp-dcfg", "driver/nxp/dcfg"] + }, + { + "title": "FLEXSPI", + "scopes": ["flexspi", "include/drivers/flexspi", "driver/nxp/xspi"] + }, + { + "title": "SCFG", + "scopes": ["nxp-scfg", "nxp/scfg"] + }, + { + "title": "SFP", + "scopes": ["nxp-sfp", "drivers/nxp/sfp"] + } + ] + }, + { + "title": "Renesas", + "scopes": ["renesas-drivers"], + "sections": [ + { + "title": "R-Car3", + "scopes": ["rcar3-drivers", "drivers/rcar3"] + } + ] + }, + { + "title": "ST", + "scopes": ["st-drivers", "drivers/st"], + "sections": [ + { + "title": "Clock", + "scopes": ["st-clock", "stm32mp_clk", "drivers/st/clk", "stm32mp1_clk"] + }, + { + "title": "I/O", + "scopes": ["st-io-drivers"], + "sections": [ + { + "title": "STM32 Image", + "scopes": ["st-io-stm32image", "io-stm32image", "io_stm32image"] + } + ] + }, + { + "title": "SDMMC2", + "scopes": ["st-sdmmc2", "stm32_sdmmc2"] + }, + { + "title": "ST PMIC", + "scopes": ["st-pmic", "drivers/st/pmic"] + }, + { + "title": "STPMIC1", + "scopes": ["stpmic1"] + }, + { + "title": "UART", + "scopes": ["st-uart"], + "sections": [ + { + "title": "STM32 Console", + "scopes": ["stm32-console", "stm32_console"] + } + ] + }, + { + "title": "USB", + "scopes": ["st-usb", "drivers/st/usb"] + } + ] + }, + { + "title": "USB", + "scopes": ["usb", "drivers/usb"] + } + ] + }, + { + "title": "Miscellaneous", + "sections": [ + { + "title": "AArch64", + "scopes": ["aarch64"] + }, + { + "title": "Debug", + "scopes": ["debug", "common/debug"] + }, + { + "title": "CRC32", + "scopes": ["crc32"], + "sections": [ + { + "title": "Hardware CRC32", + "scopes": ["hw-crc32", "hw_crc", "hw_crc32"] + }, + { + "title": "Software CRC32", + "scopes": ["sw-crc32", "sw_crc32"] + } + ] + }, + { + "title": "DT Bindings", + "scopes": ["dt-bindings"] + }, + { + "title": "FDT Wrappers", + "scopes": ["fdt-wrappers"] + }, + { + "title": "FDTs", + "scopes": ["fdts", "fdt"], + "sections": [ + { + "title": "Morello", + "scopes": ["morello-fdts", "fdts/morello"] + }, + { + "title": "STM32MP1", + "scopes": ["stm32mp1-fdts", "fdts stm32mp1"] + } + ] + }, + { + "title": "PIE", + "scopes": ["pie"] + }, + { + "title": "Security", + "scopes": ["security"] + }, + { + "title": "SDEI", + "scopes": ["sdei"] + }, + { + "title": "TBBR", + "scopes": ["tbbr"] + }, + { + "title": "NXP", + "sections": [ + { + "title": "OCRAM", + "scopes": ["nxp-ocram", "nxp/common/ocram"] + }, + { + "title": "PSCI", + "scopes": ["nxp-psci", "plat/nxp/common/psci"] + } + ] + } + ] + }, + { + "title": "Documentation", + "scopes": ["docs", "doc"], + "sections": [ + { + "title": "Changelog", + "scopes": ["changelog"] + }, + { + "title": "Commit Style", + "scopes": ["commit-style"] + }, + { + "title": "Contribution Guidelines", + "scopes": ["contributing", "contribution-guidelines", "docs-contributing.rst"] + }, + { + "title": "Maintainers", + "scopes": ["maintainers"] + }, + { + "title": "Prerequisites", + "scopes": ["prerequisites"] + } + ] + }, + { + "title": "Build System", + "scopes": ["build", "makefile", "Makefile"], + "sections": [ + { + "title": "Git Hooks", + "scopes": ["hooks"] + } + ] + }, + { + "title": "Tools", + "sections": [ + { + "title": "STM32 Image", + "scopes": ["stm32image", "tools/stm32image"] + } + ] + }, + { + "title": "Dependencies", + "scopes": ["deps"], + "sections": [ + { + "title": "checkpatch", + "scopes": ["checkpatch"] + }, + { + "title": "libfdt", + "scopes": ["libfdt"] + }, + { + "title": "Node Package Manager (NPM)", + "scopes": ["npm"] + } + ] + } + ] +} diff --git a/.versionrc.js b/.versionrc.js new file mode 100644 index 000000000..1046b281b --- /dev/null +++ b/.versionrc.js @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2021, Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* eslint-env es6 */ + +"use strict"; + +const cz = require("./.cz.json"); + +/* + * Convert the Commitizen types array into the format accepted by the Conventional Changelog + * Conventional Commits plugin (which our own plugin extends). + */ +const types = cz.types.map(type => { + if (!type.hidden) { + /* + * Conventional Changelog prevents each section from appearing only if it has no designated + * title, regardless of the value of the `hidden` flag. + */ + type.section = type.title; + } + + delete type.title; + delete type.description; + + return type; +}); + +module.exports = { + "header": "# Change Log & Release Notes\n\nThis document contains a summary of the new features, changes, fixes and known\nissues in each release of Trusted Firmware-A.\n", + "preset": { + "name": "tf-a", + "commitUrlFormat": "https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/+/{{hash}}", + "compareUrlFormat": "https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/+/{{previousTag}}..{{currentTag}}", + "userUrlFormat": "https://github.com/{{user}}", + + "types": types, + "sections": cz.sections, + }, + "bumpFiles": [ + { + "filename": "Makefile", + "updater": { + "readVersion": function (contents) { + const major = contents.match(/^VERSION_MAJOR\s*:=\s*(\d+?)$/m)[1]; + const minor = contents.match(/^VERSION_MINOR\s*:=\s*(\d+?)$/m)[1]; + + return `${major}.${minor}.0`; + }, + + "writeVersion": function (contents, version) { + const major = version.split(".")[0]; + const minor = version.split(".")[1]; + + contents = contents.replace(/^(VERSION_MAJOR\s*:=\s*)(\d+?)$/m, `$1${major}`); + contents = contents.replace(/^(VERSION_MINOR\s*:=\s*)(\d+?)$/m, `$1${minor}`); + + return contents; + } + } + } + ] +}; diff --git a/commitlint.config.js b/commitlint.config.js deleted file mode 100644 index 94cad8f2b..000000000 --- a/commitlint.config.js +++ /dev/null @@ -1,14 +0,0 @@ -/* eslint-env node */ - -"use strict"; - -const config = require("./.cz.json"); - -module.exports = { - extends: ["@commitlint/config-conventional"], - rules: { - "header-max-length": [1, "always", config.maxHeaderWidth], /* Warning */ - "body-max-line-length": [1, "always", config.maxLineWidth], /* Warning */ - "signed-off-by": [0, "always", "Signed-off-by:"] /* Disabled - buggy */ - } -}; diff --git a/docs/about/maintainers.rst b/docs/about/maintainers.rst index 7a48601b7..680683dea 100644 --- a/docs/about/maintainers.rst +++ b/docs/about/maintainers.rst @@ -747,6 +747,12 @@ Threat Model :|G|: `vwadekar`_ :|F|: docs/threat_model/ +Conventional Changelog Extensions +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +:|M|: Chris Kay <chris.kay@arm.com> +:|G|: `CJKay`_ +:|F|: tools/conventional-changelog-tf-a + .. _AlexeiFedorov: https://github.com/AlexeiFedorov .. _Andre-ARM: https://github.com/Andre-ARM .. _Anson-Huang: https://github.com/Anson-Huang diff --git a/docs/change-log.md b/docs/change-log.md new file mode 100644 index 000000000..0d75dc561 --- /dev/null +++ b/docs/change-log.md @@ -0,0 +1,3766 @@ +# Change Log & Release Notes + +This document contains a summary of the new features, changes, fixes and known +issues in each release of Trusted Firmware-A. + +## 2.5.0 (2021-05-17) + +### New Features + +- Architecture support + + - Added support for speculation barrier(`FEAT_SB`) for non-Armv8.5 platforms + starting from Armv8.0 + - Added support for Activity Monitors Extension version 1.1(`FEAT_AMUv1p1`) + - Added helper functions for Random number generator(`FEAT_RNG`) registers + - Added support for Armv8.6 Multi-threaded PMU extensions (`FEAT_MTPMU`) + - Added support for MTE Asymmetric Fault Handling extensions(`FEAT_MTE3`) + - Added support for Privileged Access Never extensions(`FEAT_PANx`) + +- Bootloader images + + - Added PIE support for AArch32 builds + - Enable Trusted Random Number Generator service for BL32(sp_min) + +- Build System + + - Added build option for Arm Feature Modifiers + +- Drivers + + - Added support for interrupts in TZC-400 driver + - Broadcom + - Added support for I2C, MDIO and USB drivers + - Marvell + - Added support for secure read/write of dfc register-set + - Added support for thermal sensor driver + - Implement a3700_core_getc API in console driver + - Added rx training on 10G port + - Marvell Mochi + - Added support for cn913x in PCIe mode + - Marvell Armada A8K + - Added support for TRNG-IP-76 driver and accessing RNG register + - Mediatek MT8192 + - Added support for following drivers + - MPU configuration for SCP/PCIe + - SPM suspend + - Vcore DVFS + - LPM + - PTP3 + - UART save and restore + - Power-off + - PMIC + - CPU hotplug and MCDI support + - SPMC + - MPU + - Mediatek MT8195 + - Added support for following drivers + - GPIO, NCDI, SPMC drivers + - Power-off + - CPU hotplug, reboot and MCDI + - Delay timer and sys timer + - GIC + - NXP + - Added support for + - non-volatile storage API + - chain of trust and trusted board boot using two modes: MBEDTLS and CSF + - fip-handler necessary for DDR initialization + - SMMU and console drivers + - crypto hardware accelerator driver + - following drivers: SD, EMMC, QSPI, FLEXSPI, GPIO, GIC, CSU, PMU, DDR + - NXP Security Monitor and SFP driver + - interconnect config APIs using ARM CCN-CCI driver + - TZC APIs to configure DDR region + - generic timer driver + - Device configuration driver + - IMX + - Added support for image loading and io-storage driver for TBBR fip booting + - Renesas + - Added support for PFC and EMMC driver + - RZ Family: + - G2N, G2E and G2H SoCs + - Added support for watchdog, QoS, PFC and DRAM initialization + - RZG Family: + - G2M + - Added support for QoS and DRAM initialization + - Xilinx + - Added JTAG DCC support for Versal and ZynqMP SoC family. + +- Libraries + + - C standard library + - Added support to print `%` in `snprintf()` and `printf()` APIs + - Added support for strtoull, strtoll, strtoul, strtol APIs from FreeBSD + project + - CPU support + - Added support for + - Cortex_A78C CPU + - Makalu ELP CPU + - Makalu CPU + - Matterhorn ELP CPU + - Neoverse-N2 CPU + - CPU Errata + - Arm Cortex-A76: Added workaround for erratum 1946160 + - Arm Cortex-A77: Added workaround for erratum 1946167 + - Arm Cortex-A78: Added workaround for erratum 1941498 and 1951500 + - Arm Neoverse-N1: Added workaround for erratum 1946160 + - Flattened device tree(libfdt) + - Added support for wrapper function to read UUIDs in string format from dtb + +- Platforms + + - Added support for MediaTek MT8195 + - Added support for Arm RD-N2 board + - Allwinner + - Added support for H616 SoC + - Arm + - Added support for GPT parser + - Protect GICR frames for fused/unused cores + - Arm Morello + - Added VirtIO network device to Morello FVP fdts + - Arm RD-N2 + - Added support for variant 1 of RD-N2 platform + - Enable AMU support + - Arm RD-V1 + - Enable AMU support + - Arm SGI + - Added support for platform variant build option + - Arm TC0 + - Added Matterhorn ELP CPU support + - Added support for opteed + - Arm Juno + - Added support to use hw_config in BL31 + - Use TRNG entropy source for SMCCC TRNG interface + - Condition Juno entropy source with CRC instructions + - Marvell Mochi + - Added support for detection of secure mode + - Marvell ARMADA + - Added support for new compile option A3720_DB_PM_WAKEUP_SRC + - Added support doing system reset via CM3 secure coprocessor + - Made several makefile enhancements required to build WTMI_MULTI_IMG and + TIMDDRTOOL + - Added support for building DOIMAGETOOL tool + - Added new target mrvl_bootimage + - Mediatek MT8192 + - Added support for rtc power off sequence + - Mediatek MT8195 + - Added support for SiP service + - STM32MP1 + - Added support for + - Seeed ODYSSEY SoM and board + - SDMMC2 and I2C2 pins in pinctrl + - I2C2 peripheral in DTS + - PIE for BL32 + - TZC-400 interrupt managament + - Linux Automation MC-1 board + - Renesas RZG + - Added support for identifying EK874 RZ/G2E board + - Added support for identifying HopeRun HiHope RZ/G2H and RZ/G2H boards + - Rockchip + - Added support for stack protector + - QEMU + - Added support for `max` CPU + - Added Cortex-A72 support to `virt` platform + - Enabled trigger reboot from secure pl061 + - QEMU SBSA + - Added support for sbsa-ref Embedded Controller + - NXP + - Added support for warm reset to retain ddr content + - Added support for image loader necessary for loading fip image + - lx2160a SoC Family + - Added support for + - new platform lx2160a-aqds + - new platform lx2160a-rdb + - new platform lx2162a-aqds + - errata handling + - IMX imx8mm + - Added support for trusted board boot + - TI K3 + - Added support for lite device board + - Enabled Cortex-A72 erratum 1319367 + - Enabled Cortex-A53 erratum 1530924 + - Xilinx ZynqMP + - Added support for PS and system reset on WDT restart + - Added support for error management + - Enable support for log messages necessary for debug + - Added support for PM API SMC call for efuse and register access + +- Processes + + - Introduced process for platform deprecation + - Added documentation for TF-A threat model + - Provided a copy of the MIT license to comply with the license requirements + of the arm-gic.h source file (originating from the Linux kernel project and + re-distributed in TF-A). + +- Services + + - Added support for TRNG firmware interface service + - Arm + - Added SiP service to configure Ethos-N NPU + - SPMC + - Added documentation for SPM(Hafnium) SMMUv3 driver + - SPMD + - Added support for + - FFA_INTERRUPT forwading ABI + - FFA_SECONDARY_EP_REGISTER ABI + - FF-A v1.0 boot time power management, SPMC secondary core boot and early + run-time power management + +- Tools + + - FIPTool + - Added mechanism to allow platform specific image UUID + - git hooks + - Added support for conventional commits through commitlint hook, commitizen + hook and husky configuration files. + - NXP tool + - Added support for a tool that creates pbl file from BL2 + - Renesas RZ/G2 + - Added tool support for creating bootparam and cert_header images + - CertCreate + - Added support for platform-defined certificates, keys, and extensions + using the platform's makefile + - shared tools + - Added EFI_GUID representation to uuid helper data structure + +### Changed + +- Common components + + - Print newline after hex address in aarch64 el3_panic function + - Use proper `#address-cells` and `#size-cells` for reserved-memory in dtbs + +- Drivers + + - Move SCMI driver from ST platform directory and make it common to all + platforms + - Arm GICv3 + - Shift eSPI register offset in GICD_OFFSET_64() + - Use mpidr to probe GICR for current CPU + - Arm TZC-400 + - Adjust filter tag if it set to FILTER_BIT_ALL + - Cadence + - Enhance UART driver APIs to put characters to fifo + - Mediatek MT8192 + - Move timer driver to common folder + - Enhanced sys_cirq driver to add more IC services + - Renesas + - Move ddr and delay driver to common directory + - Renesas rcar + - Treat log as device memory in console driver + - Renesas RZ Family: + - G2N and G2H SoCs + - Select MMC_CH1 for eMMC channel + - Marvell + - Added support for checking if TRNG unit is present + - Marvell A3K + - Set TXDCLK_2X_SEL bit during PCIe initialization + - Set mask parameter for every reg_set call + - Marvell Mochi + - Added missing stream IDs configurations + - MbedTLS + - Migrated to Mbed TLS v2.26.0 + - IMX imx8mp + - Change the bl31 physical load address + - QEMU SBSA + - Enable secure variable storage + - SCMI + - Update power domain protocol version to 2.0 + - STM32 + - Remove dead code from nand FMC driver + +- Libraries + + - C Standard Library + - Use macros to reduce duplicated code between snprintf and printf + - CPU support + - Sanity check pointers before use in AArch32 builds + - Arm Cortex-A78 + - Remove rainier cpu workaround for errata 1542319 + - Arm Makalu ELP + - Added "\_arm" suffix to Makalu ELP CPU lib + +- Miscellaneous + + - Editorconfig + - set max line length to 100 + +- Platforms + + - Allwinner + - Added reserved-memory node to DT + - Express memmap more dynamically + - Move SEPARATE_NOBITS_REGION to platforms + - Limit FDT checks to reduce code size + - Use CPUIDLE hardware when available + - Allow conditional compilation of SCPI and native PSCI ops + - Always use a 3MHz RSB bus clock + - Enable workaround for Cortex-A53 erratum 1530924 + - Fixed non-default PRELOADED_BL33_BASE + - Leave CPU power alone during BL31 setup + - Added several psci hooks enhancements to improve system shutdown/reset + sequence + - Return the PMIC to I2C mode after use + - Separate code to power off self and other CPUs + - Split native and SCPI-based PSCI implementations + - Allwinner H6 + - Added R_PRCM security setup for H6 board + - Added SPC security setup for H6 board + - Use RSB for the PMIC connection on H6 + - Arm + - Store UUID as a string, rather than ints + - Replace FIP base and size macro with a generic name + - Move compile time switch from source to dt file + - Don't provide NT_FW_CONFIG when booting hafnium + - Do not setup 'disabled' regulator + - Increase SP max size + - Remove false dependency of ARM_LINUX_KERNEL_AS_BL33 on RESET_TO_BL31 and + allow it to be enabled independently + - Arm FVP + - Do not map GIC region in BL1 and BL2 + - Arm Juno + - Refactor juno_getentropy() to return 64 bits on each call + - Arm Morello + - Remove "virtio-rng" from Morello FVP + - Enable virtIO P9 device for Morello fvp + - Arm RDV1 + - Allow all PSCI callbacks on RD-V1 + - Rename rddaniel to rdv1 + - Arm RDV1MC + - Rename rddanielxlr to rdv1mc + - Initialize TZC-400 controllers + - Arm TC0 + - Updated GICR base address + - Use scmi_dvfs clock index 1 for cores 4-7 through fdt + - Added reserved-memory node for OP-TEE fdts + - Enabled Theodul DSU in TC platform + - OP-TEE as S-EL1 SP with SPMC at S-EL2 + - Update Matterhorm ELP DVFS clock index + - Arm SGI + - Allow access to TZC controller on all chips + - Define memory regions for multi-chip platforms + - Allow access to nor2 flash and system registers from S-EL0 + - Define default list of memory regions for DMC-620 TZC + - Improve macros defining cper buffer memory region + - Refactor DMC-620 error handling SMC function id + - Refactor SDEI specific macros + - Added platform id value for RDN2 platform + - Refactored header file inclusions and inclusion of memory mapping + - Arm RDN2 + - Allow usage of secure partitions on RDN2 platform + - Update GIC redistributor and TZC base address + - Arm SGM775 + - Deprecate Arm sgm775 FVP platform + - Marvell + - Increase TX FIFO EMPTY timeout from 2ms to 3ms + - Update delay code to be compatible with 1200 MHz CPU + - Marvell ARMADA + - Postpone MSS CPU startup to BL31 stage + - Allow builds without MSS support + - Use MSS SRAM in secure mode + - Added missing FORCE, .PHONY and clean targets + - Cleanup MSS SRAM if used for copy + - Move definition of mrvl_flash target to common marvell_common.mk file + - Show informative build messages and blank lines + - Marvell ARMADA A3K + - Added a new target mrvl_uart which builds UART image + - Added checks that WTP, MV_DDR_PATH and CRYPTOPP_PATH are correctly defined + - Allow use of the system Crypto++ library + - Build \$(WTMI_ENC_IMG) in \$(BUILD_PLAT) directory + - Build intermediate files in \$(BUILD_PLAT) directory + - Build UART image files directly in \$(BUILD_UART) subdirectory + - Correctly set DDR_TOPOLOGY and CLOCKSPRESET for WTMI + - Do not use 'echo -e' in Makefile + - Improve 4GB DRAM usage from 3.375 GB to 3.75 GB + - Remove unused variable WTMI_SYSINIT_IMG from Makefile + - Simplify check if WTP variable is defined + - Split building \$(WTMI_MULTI_IMG) and \$(TIMDDRTOOL) + - Marvell ARMADA A8K + - Allow CP1/CP2 mapping at BLE stage + - Mediatek MT8183 + - Added timer V20 compensation + - Nvidia Tegra + - Rename SMC API + - TI K3 + - Make plat_get_syscnt_freq2 helper check CNT_FID0 register + - Fill non-message data fields in sec_proxy with 0x0 + - Update ti_sci_msg_req_reboot ABI to include domain + - Enable USE_COHERENT_MEM only for the generic board + - Explicitly map SEC_SRAM_BASE to 0x0 + - Use BL31_SIZE instead of computing + - Define the correct number of max table entries and increase SRAM size to + account for additional table + - Raspberry Pi4 + - Switch to gicv2.mk and GICV2_SOURCES + - Renesas + - Move headers and assembly files to common folder + - Renesas rzg + - Added device tree memory node enhancements + - Rockchip + - Switch to using common gicv3.mk + - STM32MP1 + - Set BL sizes regardless of flags + - QEMU + - Include gicv2.mk for compiling GICv2 source files + - Change DEVICE2 definition for MMU + - Added helper to calculate the position shift from MPIDR + - QEMU SBSA + - Include libraries for Cortex-A72 + - Increase SHARED_RAM_SIZE + - Addes support in spm_mm for upto 512 cores + - Added support for topology handling + - QTI + - Mandate SMC implementation + - Xilinx + - Rename the IPI CRC checksum macro + - Use fno-jump-tables flag in CPPFLAGS + - Xilinx versal + - Added the IPI CRC checksum macro support + - Mark IPI calls secure/non-secure + - Enable sgi to communicate with linux using IPI + - Remove Cortex-A53 compilation + - Xilinx ZynqMP + - Configure counter frequency during initialization + - Filter errors related to clock gate permissions + - Implement pinctrl request/release EEMI API + - Reimplement pinctrl get/set config parameter EEMI API calls + - Reimplement pinctrl set/get function EEMI API + - Update error codes to match Linux and PMU Firmware + - Update PM version and support PM version check + - Update return type in query functions + - Added missing ids for 43/46/47dr devices + - Checked for DLL status before doing reset + - Disable ITAPDLYENA bit for zero ITAP delay + - Include GICv2 makefile + - Remove the custom crash implementation + +- Services + + - SPMD + - Lock the g_spmd_pm structure + - Declare third cactus instance as UP SP + - Provide number of vCPUs and VM size for first SP + - Remove `chosen` node from SPMC manifests + - Move OP-TEE SP manifest DTS to FVP platform + - Update OP-TEE SP manifest with device-regions node + - Remove device-memory node from SPMC manifests + - SPM_MM + - Use sp_boot_info to set SP context + - SDEI + - Updata the affinity of shared event + +- Tools + + - FIPtool + - Do not print duplicate verbose lines about building fiptool + - CertCreate + - Updated tool for platform defined certs, keys & extensions + - Create only requested certificates + - Avoid duplicates in extension stack + +### Resolved Issues + +- Several fixes for typos and mis-spellings in documentation + +- Build system + + - Fixed \$\{FIP_NAME} to be rebuilt only when needed in Makefile + - Do not mark file targets as .PHONY target in Makefile + +- Drivers + + - Authorization + - Avoid NV counter upgrade without certificate validation + - Arm GICv3 + - Fixed logical issue for num_eints + - Limit SPI ID to avoid misjudgement in GICD_OFFSET() + - Fixed potential GICD context override with ESPI enabled + - Marvell A3700 + - Fixed configuring polarity invert bits + - Arm TZC-400 + - Correct FAIL_CONTROL Privileged bit + - Fixed logical error in FILTER_BIT definitions + - Renesas rcar + - Fixed several coding style violations reported by checkpatch + +- Libraries + + - Arch helpers + - Fixed assertions in processing dynamic relocations for AArch64 builds + - C standard library + - Fixed MISRA issues in memset() ABI + - RAS + - Fixed bug of binary search in RAS interrupt handler + +- Platforms + + - Arm + - Fixed missing copyrights in arm-gic.h file + - Fixed the order of header files in several dts files + - Fixed error message printing in board makefile + - Fixed bug of overriding the last node in image load helper API + - Fixed stdout-path in fdts files of TC0 and N1SDP platforms + - Turn ON/OFF redistributor in sync with GIC CPU interface ON/OFF for css + platforms + - Arm FVP + - Fixed Generic Timer interrupt types in platform dts files + - Arm Juno + - Fixed parallel build issue for romlib config + - Arm SGI + - Fixed bug in SDEI receive event of RAS handler + - Intel Agilex + - Fixed PLAT_MAX_PWR_LVL value + - Marvell + - Fixed SPD handling in dram port + - Marvell ARMADA + - Fixed TRNG return SMC handling + - Fixed the logic used for LD selector mask + - Fixed MSS firmware loader for A8K family + - ST + - Fixed few violations reported by coverity static checks + - STM32MP1 + - Fixed SELFREF_TO_X32 mask in ddr driver + - Do not keep mmc_device_info in stack + - Correct plat_crash_console_flush() + - QEMU SBSA + - Fixed memory type of secure NOR flash + - QTI + - Fixed NUM_APID and REG_APID_MAP() argument in SPMI driver + - Intel + - Do not keep mmc_device_info in stack + - Hisilicon + - Do not keep mmc_device_info in stack + +- Services + + - EL3 runtime + - Fixed the EL2 context save/restore routine by removing EL2 generic timer + system registers + - Added fix for exception handler in BL31 by synchronizing pending EA using + DSB barrier + - SPMD + - Fixed error codes to use int32_t type + - TSPD + - Added bug fix in tspd interrupt handling when TSP_NS_INTR_ASYNC_PREEMPT is + enabled + - TRNG + - Fixed compilation errors with -O0 compile option + - DebugFS + - Checked channel index before calling clone function + - PSCI + - Fixed limit of 256 CPUs caused by cast to unsigned char + - TSP + - Fixed compilation erros when built with GCC 11.0.0 toolchain + +- Tools + + - FIPtool + - Do not call `make clean` for `all` target + - CertCreate + - Fixed bug to avoid cleaning when building the binary + - Used preallocated parts of the HASH struct to avoid leaking HASH struct + fields + - Free arguments copied with strdup + - Free keys after use + - Free X509_EXTENSION structures on stack to avoid leaking them + - Optimized the code to avoid unnecessary attempts to create non-requested + certificates + +## 2.4.0 (2020-11-17) + +### New Features + +- Architecture support + - Armv8.6-A + - Added support for Armv8.6 Enhanced Counter Virtualization (ECV) + - Added support for Armv8.6 Fine Grained Traps (FGT) + - Added support for Armv8.6 WFE trap delays +- Bootloader images + - Added support for Measured Boot +- Build System + - Added build option `COT_DESC_IN_DTB` to create Chain of Trust at runtime + - Added build option `OPENSSL_DIR` to direct tools to OpenSSL libraries + - Added build option `RAS_TRAP_LOWER_EL_ERR_ACCESS` to enable trapping RAS + register accesses from EL1/EL2 to EL3 + - Extended build option `BRANCH_PROTECTION` to support branch target + identification +- Common components + - Added support for exporting CPU nodes to the device tree + - Added support for single and dual-root Chains of Trust in secure partitions +- Drivers + - Added Broadcom RNG driver + - Added Marvell `mg_conf_cm3` driver + - Added System Control and Management Interface (SCMI) driver + - Added STMicroelectronics ETZPC driver + - Arm GICv3 + - Added support for detecting topology at runtime + - Dual Root + - Added support for platform certificates + - Marvell Cache LLC + - Added support for mapping the entire LLC into SRAM + - Marvell CCU + - Added workaround for erratum 3033912 + - Marvell CP110 COMPHY + - Added support for SATA COMPHY polarity inversion + - Added support for USB COMPHY polarity inversion + - Added workaround for erratum IPCE_COMPHY-1353 + - STM32MP1 Clocks + - Added `RTC` as a gateable clock + - Added support for shifted clock selector bit masks + - Added support for using additional clocks as parents +- Libraries + - C standard library + - Added support for hexadecimal and pointer format specifiers in `snprint()` + - Added assembly alternatives for various library functions + - CPU support + - Arm Cortex-A53 + - Added workaround for erratum 1530924 + - Arm Cortex-A55 + - Added workaround for erratum 1530923 + - Arm Cortex-A57 + - Added workaround for erratum 1319537 + - Arm Cortex-A76 + - Added workaround for erratum 1165522 + - Added workaround for erratum 1791580 + - Added workaround for erratum 1868343 + - Arm Cortex-A72 + - Added workaround for erratum 1319367 + - Arm Cortex-A77 + - Added workaround for erratum 1508412 + - Added workaround for erratum 1800714 + - Added workaround for erratum 1925769 + - Arm Neoverse-N1 + - Added workaround for erratum 1868343 + - EL3 Runtime + - Added support for saving/restoring registers related to nested + virtualization in EL2 context switches if the architecture supports it + - FCONF + - Added support for Measured Boot + - Added support for populating Chain of Trust properties + - Added support for loading the `fw_config` image + - Measured Boot + - Added support for event logging +- Platforms + - Added support for Arm Morello + - Added support for Arm TC0 + - Added support for iEi PUZZLE-M801 + - Added support for Marvell OCTEON TX2 T9130 + - Added support for MediaTek MT8192 + - Added support for NXP i.MX 8M Nano + - Added support for NXP i.MX 8M Plus + - Added support for QTI CHIP SC7180 + - Added support for STM32MP151F + - Added support for STM32MP153F + - Added support for STM32MP157F + - Added support for STM32MP151D + - Added support for STM32MP153D + - Added support for STM32MP157D + - Arm + - Added support for platform-owned SPs + - Added support for resetting to BL31 + - Arm FPGA + - Added support for Klein + - Added support for Matterhorn + - Added support for additional CPU clusters + - Arm FVP + - Added support for performing SDEI platform setup at runtime + - Added support for SMCCC's `SMCCC_ARCH_SOC_ID` command + - Added an `id` field under the NV-counter node in the device tree to + differentiate between trusted and non-trusted NV-counters + - Added support for extracting the clock frequency from the timer node in + the device tree + - Arm Juno + - Added support for SMCCC's `SMCCC_ARCH_SOC_ID` command + - Arm N1SDP + - Added support for cross-chip PCI-e + - Marvell + - Added support for AVS reduction + - Marvell ARMADA + - Added support for twin-die combined memory device + - Marvell ARMADA A8K + - Added support for DDR with 32-bit bus width (both ECC and non-ECC) + - Marvell AP806 + - Added workaround for erratum FE-4265711 + - Marvell AP807 + - Added workaround for erratum 3033912 + - Nvidia Tegra + - Added debug printouts indicating SC7 entry sequence completion + - Added support for SDEI + - Added support for stack protection + - Added support for GICv3 + - Added support for SMCCC's `SMCCC_ARCH_SOC_ID` command + - Nvidia Tegra194 + - Added support for RAS exception handling + - Added support for SPM + - NXP i.MX + - Added support for SDEI + - QEMU SBSA + - Added support for the Secure Partition Manager + - QTI + - Added RNG driver + - Added SPMI PMIC arbitrator driver + - Added support for SMCCC's `SMCCC_ARCH_SOC_ID` command + - STM32MP1 + - Added support for exposing peripheral interfaces to the non-secure world + at runtime + - Added support for SCMI clock and reset services + - Added support for STM32MP15x CPU revision Z + - Added support for SMCCC services in `SP_MIN` +- Services + - Secure Payload Dispatcher + - Added a provision to allow clients to retrieve the service UUID + - SPMC + - Added secondary core endpoint information to the SPMC context structure + - SPMD + - Added support for booting OP-TEE as a guest S-EL1 Secure Partition on top + of Hafnium in S-EL2 + - Added a provision for handling SPMC messages to register secondary core + entry points + - Added support for power management operations +- Tools + - CertCreate + - Added support for secure partitions + - CertTool + - Added support for the `fw_config` image + - FIPTool + - Added support for the `fw_config` image + +### Changed + +- Architecture support +- Bootloader images +- Build System + - The top-level Makefile now supports building FipTool on Windows + - The default value of `KEY_SIZE` has been changed to to 2048 when RSA is in + use + - The previously-deprecated macro `__ASSEMBLY__` has now been removed +- Common components + - Certain functions that flush the console will no longer return error + information +- Drivers + - Arm GIC + - Usage of `drivers/arm/gic/common/gic_common.c` has now been deprecated in + favour of `drivers/arm/gic/vX/gicvX.mk` + - Added support for detecting the presence of a GIC600-AE + - Added support for detecting the presence of a GIC-Clayton + - Marvell MCI + - Now performs link tuning for all MCI interfaces to improve performance + - Marvell MoChi + - PIDI masters are no longer forced into a non-secure access level when + `LLC_SRAM` is enabled + - The SD/MMC controllers are now accessible from guest virtual machines + - Mbed TLS + - Migrated to Mbed TLS v2.24.0 + - STM32 FMC2 NAND + - Adjusted FMC node bindings to include an EBI controller node + - STM32 Reset + - Added an optional timeout argument to assertion functions + - STM32MP1 Clocks + - Enabled several additional system clocks during initialization +- Libraries + - C Standard Library + - Improved `memset` performance by avoiding single-byte writes + - Added optimized assembly variants of `memset` + - CPU support + - Renamed Cortex-Hercules to Cortex-A78 + - Renamed Cortex-Hercules AE to Cortex-A78 AE + - Renamed Neoverse Zeus to Neoverse V1 + - Coreboot + - Updated ‘coreboot_get_memory_type’ API to take an extra argument as a + ’memory size’ that used to return a valid memory type. + - libfdt + - Updated to latest upstream version +- Platforms + - Allwinner + - Disabled non-secure access to PRCM power control registers + - Arm + - `BL32_BASE` is now platform-dependent when `SPD_spmd` is enabled + - Added support for loading the Chain of Trust from the device tree + - The firmware update check is now executed only once + - NV-counter base addresses are now loaded from the device tree when + `COT_DESC_IN_DTB` is enabled + - Now loads and populates `fw_config` and `tb_fw_config` + - FCONF population now occurs after caches have been enabled in order to + reduce boot times + - Arm Corstone-700 + - Platform support has been split into both an FVP and an FPGA variant + - Arm FPGA + - DTB and BL33 load addresses have been given sensible default values + - Now reads generic timer counter frequency, GICD and GICR base addresses, + and UART address from DT + - Now treats the primary PL011 UART as an SBSA Generic UART + - Arm FVP + - Secure interrupt descriptions, UART parameters, clock frequencies and + GICv3 parameters are now queried through FCONF + - UART parameters are now queried through the device tree + - Added an owner field to Cactus secure partitions + - Increased the maximum size of BL2 when the Chain of Trust is loaded from + the device tree + - Reduces the maximum size of BL31 + - The `FVP_USE_SP804_TIMER` and `FVP_VE_USE_SP804_TIMER` build options have + been removed in favour of a common `USE_SP804_TIMER` option + - Added a third Cactus partition to manifests + - Device tree nodes now store UUIDs in big-endian + - Arm Juno + - Increased the maximum size of BL2 when optimizations have not been applied + - Reduced the maximum size of BL31 and BL32 + - Marvell AP807 + - Enabled snoop filters + - Marvell ARMADA A3K + - UART recovery images are now suffixed with `.bin` + - Marvell ARMADA A8K + - Option `BL31_CACHE_DISABLE` is now disabled (`0`) by default + - Nvidia Tegra + - Added VPR resize supported check when processing video memory resize + requests + - Added SMMU verification to prevent potential issues caused by undetected + corruption of the SMMU configuration during boot + - The GIC CPU interface is now properly disabled after CPU off + - The GICv2 sources list and the `BL31_SIZE` definition have been made + platform-specific + - The SPE driver will no longer flush the console when writing individual + characters + - Nvidia Tegra194 + - TZDRAM setup has been moved to platform-specific early boot handlers + - Increased verbosity of debug prints for RAS SErrors + - Support for powering down CPUs during CPU suspend has been removed + - Now verifies firewall settings before using resources + - TI K3 + - The UART number has been made configurable through `K3_USART` + - Rockchip RK3368 + - The maximum number of memory map regions has been increased to 20 + - Socionext Uniphier + - The maximum size of BL33 has been increased to support larger bootloaders + - STM32 + - Removed platform-specific DT functions in favour of using existing generic + alternatives + - STM32MP1 + - Increased verbosity of exception reports in debug builds + - Device trees have been updated to align with the Linux kernel + - Now uses the ETZPC driver to configure secure-aware interfaces for + assignment to the non-secure world + - Finished good variants have been added to the board identifier + enumerations + - Non-secure access to clocks and reset domains now depends on their state + of registration + - NEON is now disabled in `SP_MIN` + - The last page of `SYSRAM` is now used as SCMI shared memory + - Checks to verify platform compatibility have been added to verify that an + image is compatible with the chip ID of the running platform + - QEMU SBSA + - Removed support for Arm's Cortex-A53 +- Services + - Renamed SPCI to FF-A + - SPMD + - No longer forwards requests to the non-secure world when retrieving + partition information + - SPMC manifest size is now retrieved directly from SPMD instead of the + device tree + - The FF-A version handler now returns SPMD's version when the origin of the + call is secure, and SPMC's version when the origin of the call is + non-secure + - SPMC + - Updated the manifest to declare CPU nodes in descending order as per the + SPM (Hafnium) multicore requirement + - Updated the device tree to mark 2GB as device memory for the first + partition excluding trusted DRAM region (which is reserved for SPMC) + - Increased the number of EC contexts to the maximum number of PEs as per + the FF-A specification +- Tools + - FIPTool + - Now returns `0` on `help` and `help <command>` + - Marvell DoImage + - Updated Mbed TLS support to v2.8 + - SPTool + - Now appends CertTool arguments + +### Resolved Issues + +- Bootloader images + - Fixed compilation errors for dual-root Chains of Trust caused by symbol + collision + - BL31 + - Fixed compilation errors on platforms with fewer than 4 cores caused by + initialization code exceeding the end of the stacks + - Fixed compilation errors when building a position-independent image +- Build System + - Fixed invalid empty version strings + - Fixed compilation errors on Windows caused by a non-portable architecture + revision comparison +- Drivers + - Arm GIC + - Fixed spurious interrupts caused by a missing barrier + - STM32 Flexible Memory Controller 2 (FMC2) NAND driver + - Fixed runtime instability caused by incorrect error detection logic + - STM32MP1 Clock driver + - Fixed incorrectly-formatted log messages + - Fixed runtime instability caused by improper clock gating procedures + - STMicroelectronics Raw NAND driver + - Fixed runtime instability caused by incorrect unit conversion when waiting + for NAND readiness +- Libraries + - AMU + - Fixed timeout errors caused by excess error logging + - EL3 Runtime + - Fixed runtime instability caused by improper register save/restore routine + in EL2 + - FCONF + - Fixed failure to initialize GICv3 caused by overly-strict device tree + requirements + - Measured Boot + - Fixed driver errors caused by a missing default value for the `HASH_ALG` + build option + - SPE + - Fixed feature detection check that prevented CPUs supporting SVE from + detecting support for SPE in the non-secure world + - Translation Tables + - Fixed various MISRA-C 2012 static analysis violations +- Platforms + - Allwinner A64 + - Fixed USB issues on certain battery-powered device caused by improperly + activated USB power rail + - Arm + - Fixed compilation errors caused by increase in BL2 size + - Fixed compilation errors caused by missing Makefile dependencies to + generated files when building the FIP + - Fixed MISRA-C 2012 static analysis violations caused by unused structures + in include directives intended to be feature-gated + - Arm FPGA + - Fixed initialization issues caused by incorrect MPIDR topology mapping + logic + - Arm RD-N1-edge + - Fixed compilation errors caused by mismatched parentheses in Makefile + - Arm SGI + - Fixed crashes due to the flash memory used for cold reboot attack + protection not being mapped + - Intel Agilex + - Fixed initialization issues caused by several compounding bugs + - Marvell + - Fixed compilation warnings caused by multiple Makefile inclusions + - Marvell ARMADA A3K + - Fixed boot issue in debug builds caused by checks on the BL33 load address + that are not appropriate for this platform + - Nvidia Tegra + - Fixed incorrect delay timer reads + - Fixed spurious interrupts in the non-secure world during cold boot caused + by the arbitration bit in the memory controller not being cleared + - Fixed faulty video memory resize sequence + - Nvidia Tegra194 + - Fixed incorrect alignment of TZDRAM base address + - NXP iMX8M + - Fixed CPU hot-plug issues caused by race condition + - STM32MP1 + - Fixed compilation errors in highly-parallel builds caused by incorrect + Makefile dependencies + - STM32MP157C-ED1 + - Fixed initialization issues caused by missing device tree hash node + - Raspberry Pi 3 + - Fixed compilation errors caused by incorrect dependency ordering in + Makefile + - Rockchip + - Fixed initialization issues caused by non-critical errors when parsing FDT + being treated as critical + - Rockchip RK3368 + - Fixed runtime instability caused by incorrect CPUID shift value + - QEMU + - Fixed compilation errors caused by incorrect dependency ordering in + Makefile + - QEMU SBSA + - Fixed initialization issues caused by FDT exceeding reserved memory size + - QTI + - Fixed compilation errors caused by inclusion of a non-existent file +- Services + - FF-A (previously SPCI) + - Fixed SPMD aborts caused by incorrect behaviour when the manifest is + page-aligned +- Tools + - Fixed compilation issues when compiling tools from within their respective + directories + - FIPTool + - Fixed command line parsing issues on Windows when using arguments whose + names also happen to be a subset of another's + - Marvell DoImage + - Fixed PKCS signature verification errors at boot on some platforms caused + by generation of misaligned images + +### Known Issues + +- Platforms + - NVIDIA Tegra + - Signed comparison compiler warnings occurring in libfdt are currently + being worked around by disabling the warning for the platform until the + underlying issue is resolved in libfdt + +## 2.3 (2020-04-20) + +### New Features + +- Arm Architecture + - Add support for Armv8.4-SecEL2 extension through the SPCI defined SPMD/SPMC + components. + - Build option to support EL2 context save and restore in the secure world + (CTX_INCLUDE_EL2_REGS). + - Add support for SMCCC v1.2 (introducing the new SMCCC_ARCH_SOC_ID SMC). Note + that the support is compliant, but the SVE registers save/restore will be + done as part of future S-EL2/SPM development. +- BL-specific + - Enhanced BL2 bootloader flow to load secure partitions based on firmware + configuration data (fconf). + - Changes necessary to support SEPARATE_NOBITS_REGION feature + - TSP and BL2_AT_EL3: Add Position Independent Execution `PIE` support +- Build System + - Add support for documentation build as a target in Makefile + - Add `COT` build option to select the Chain of Trust to use when the Trusted + Boot feature is enabled (default: `tbbr`). + - Added creation and injection of secure partition packages into the FIP. + - Build option to support SPMC component loading and run at S-EL1 or S-EL2 + (SPMD_SPM_AT_SEL2). + - Enable MTE support + - Enable Link Time Optimization in GCC + - Enable -Wredundant-decls warning check + - Makefile: Add support to optionally encrypt BL31 and BL32 + - Add support to pass the nt_fw_config DTB to OP-TEE. + - Introduce per-BL `CPPFLAGS`, `ASFLAGS`, and `LDFLAGS` + - build_macros: Add CREATE_SEQ function to generate sequence of numbers +- CPU Support + - cortex-a57: Enable higher performance non-cacheable load forwarding + - Hercules: Workaround for Errata 1688305 + - Klein: Support added for Klein CPU + - Matterhorn: Support added for Matterhorn CPU +- Drivers + - auth: Add `calc_hash` function for hash calculation. Used for authentication + of images when measured boot is enabled. + - cryptocell: Add authenticated decryption framework, and support for + CryptoCell-713 and CryptoCell-712 RSA 3K + - gic600: Add support for multichip configuration and Clayton + - gicv3: Introduce makefile, Add extended PPI and SPI range, Add support for + probing multiple GIC Redistributor frames + - gicv4: Add GICv4 extension for GIC driver + - io: Add an IO abstraction layer to load encrypted firmwares + - mhu: Derive doorbell base address + - mtd: Add SPI-NOR, SPI-NAND, SPI-MEM, and raw NAND framework + - scmi: Allow use of multiple SCMI channels + - scu: Add a driver for snoop control unit +- Libraries + - coreboot: Add memory range parsing and use generic base address + - compiler_rt: Import popcountdi2.c and popcountsi2.c files, aeabi_ldivmode.S + file and dependencies + - debugFS: Add DebugFS functionality + - el3_runtime: Add support for enabling S-EL2 + - fconf: Add Firmware Configuration Framework (fconf) (experimental). + - libc: Add memrchr function + - locks: bakery: Use is_dcache_enabled() helper and add a DMB to the + 'read_cache_op' macro + - psci: Add support to enable different personality of the same soc. + - xlat_tables_v2: Add support to pass shareability attribute for normal memory + region, use get_current_el_maybe_constant() in is_dcache_enabled(), + read-only xlat tables for BL31 memory, and add enable_mmu() +- New Platforms Support + - arm/arm_fpga: New platform support added for FPGA + - arm/rddaniel: New platform support added for rd-daniel platform + - brcm/stingray: New platform support added for Broadcom stingray platform + - nvidia/tegra194: New platform support for Nvidia Tegra194 platform +- Platforms + - allwinner: Implement PSCI system suspend using SCPI, add a msgbox driver for + use with SCPI, and reserve and map space for the SCP firmware + - allwinner: axp: Add AXP805 support + - allwinner: power: Add DLDO4 power rail + - amlogic: axg: Add a build flag when using ATOS as BL32 and support for the + A113D (AXG) platform + - arm/a5ds: Add ethernet node and L2 cache node in devicetree + - arm/common: Add support for the new `dualroot` chain of trust + - arm/common: Add support for SEPARATE_NOBITS_REGION + - arm/common: Re-enable PIE when RESET_TO_BL31=1 + - arm/common: Allow boards to specify second DRAM Base address and to define + PLAT_ARM_TZC_FILTERS + - arm/corstone700: Add support for mhuv2 and stack protector + - arm/fvp: Add support for fconf in BL31 and SP_MIN. Populate power domain + descriptor dynamically by leveraging fconf APIs. + - arm/fvp: Add Cactus/Ivy Secure Partition information and use two instances + of Cactus at S-EL1 + - arm/fvp: Add support to run BL32 in TDRAM and BL31 in secure DRAM + - arm/fvp: Add support for GICv4 extension and BL2 hash calculation in BL1 + - arm/n1sdp: Setup multichip gic routing table, update platform macros for + dual-chip setup, introduce platform information SDS region, add support to + update presence of External LLC, and enable the NEOVERSE_N1_EXTERNAL_LLC + flag + - arm/rdn1edge: Add support for dual-chip configuration and use CREATE_SEQ + helper macro to compare chip count + - arm/sgm: Always use SCMI for SGM platforms + - arm/sgm775: Add support for dynamic config using fconf + - arm/sgi: Add multi-chip mode parameter in HW_CONFIG dts, macros for remote + chip device region, chip_id and multi_chip_mode to platform variant info, + and introduce number of chips macro + - brcm: Add BL2 and BL31 support common across Broadcom platforms + - brcm: Add iproc SPI Nor flash support, spi driver, emmc driver, and support + to retrieve plat_toc_flags + - hisilicon: hikey960: Enable system power off callback + - intel: Enable bridge access, SiP SMC secure register access, and uboot + entrypoint support + - intel: Implement platform specific system reset 2 + - intel: Introduce mailbox response length handling + - imx: console: Use CONSOLE_T_BASE for UART base address and generic console_t + data structure + - imx8mm: Provide uart base as build option and add the support for opteed spd + on imx8mq/imx8mm + - imx8qx: Provide debug uart num as build + - imx8qm: Apply clk/pinmux configuration for DEBUG_CONSOLE and provide debug + uart num as build param + - marvell: a8k: Implement platform specific power off and add support for + loading MG CM3 images + - mediatek: mt8183: Add Vmodem/Vcore DVS init level + - qemu: Support optional encryption of BL31 and BL32 images and + ARM_LINUX_KERNEL_AS_BL33 to pass FDT address + - qemu: Define ARMV7_SUPPORTS_VFP + - qemu: Implement PSCI_CPU_OFF and qemu_system_off via semihosting + - renesas: rcar_gen3: Add new board revision for M3ULCB + - rockchip: Enable workaround for erratum 855873, claim a macro to enable hdcp + feature for DP, enable power domains of rk3399 before reset, add support for + UART3 as serial output, and initialize reset and poweroff GPIOs with known + invalid value + - rpi: Implement PSCI CPU_OFF, use MMIO accessor, autodetect Mini-UART vs. + PL011 configuration, and allow using PL011 UART for RPi3/RPi4 + - rpi3: Include GPIO driver in all BL stages and use same "clock-less" setup + scheme as RPi4 + - rpi3/4: Add support for offlining CPUs + - st: stm32mp1: platform.mk: Support generating multiple images in one build, + migrate to implicit rules, derive map file name from target name, generate + linker script with fixed name, and use PHONY for the appropriate targets + - st: stm32mp1: Add support for SPI-NOR, raw NAND, and SPI-NAND boot device, + QSPI, FMC2 driver + - st: stm32mp1: Use stm32mp_get_ddr_ns_size() function, set XN attribute for + some areas in BL2, dynamically map DDR later and non-cacheable during its + test, add a function to get non-secure DDR size, add DT helper for reg by + name, and add compilation flags for boot devices + - socionext: uniphier: Turn on ENABLE_PIE + - ti: k3: Add PIE support + - xilinx: versal: Add set wakeup source, client wakeup, query data, request + wakeup, PM_INIT_FINALIZE, PM_GET_TRUSTZONE_VERSION, PM IOCTL, support for + suspend related, and Get_ChipID APIs + - xilinx: versal: Implement power down/restart related EEMI, SMC handler for + EEMI, PLL related PM, clock related PM, pin control related PM, reset + related PM, device related PM , APIs + - xilinx: versal: Enable ipi mailbox service + - xilinx: versal: Add get_api_version support and support to send PM API to + PMC using IPI + - xilinx: zynqmp: Add checksum support for IPI data, GET_CALLBACK_DATA + function, support to query max divisor, CLK_SET_RATE_PARENT in gem clock + node, support for custom type flags, LPD WDT clock to the pm_clock + structure, idcodes for new RFSoC silicons ZU48DR and ZU49DR, and id for new + RFSoC device ZU39DR +- Security + - Use Speculation Barrier instruction for v8.5+ cores + - Add support for optional firmware encryption feature (experimental). + - Introduce a new `dualroot` chain of trust. + - aarch64: Prevent speculative execution past ERET + - aarch32: Stop speculative execution past exception returns. +- SPCI + - Introduced the Secure Partition Manager Dispatcher (SPMD) component as a new + standard service. +- Tools + - cert_create: Introduce CoT build option and TBBR CoT makefile, and define + the dualroot CoT + - encrypt_fw: Add firmware authenticated encryption tool + - memory: Add show_memory script that prints a representation of the memory + layout for the latest build + +### Changed + +- Arm Architecture + - PIE: Make call to GDT relocation fixup generalized +- BL-Specific + - Increase maximum size of BL2 image + - BL31: Discard .dynsym .dynstr .hash sections to make ENABLE_PIE work + - BL31: Split into two separate memory regions + - Unify BL linker scripts and reduce code duplication. +- Build System + - Changes to drive cert_create for dualroot CoT + - Enable -Wlogical-op always + - Enable -Wshadow always + - Refactor the warning flags + - PIE: Pass PIE options only to BL31 + - Reduce space lost to object alignment + - Set lld as the default linker for Clang builds + - Remove -Wunused-const-variable and -Wpadded warning + - Remove -Wmissing-declarations warning from WARNING1 level +- Drivers + - authentication: Necessary fix in drivers to upgrade to mbedtls-2.18.0 + - console: Integrate UART base address in generic console_t + - gicv3: Change API for GICR_IPRIORITYR accessors and separate GICD and GICR + accessor functions + - io: Change seek offset to signed long long and panic in case of io setup + failure + - smmu: SMMUv3: Changed retry loop to delay timer + - tbbr: Reduce size of hash and ECDSA key buffers when possible +- Library Code + - libc: Consolidate the size_t, unified, and NULL definitions, and unify + intmax_t and uintmax_t on AArch32/64 + - ROMLIB: Optimize memory layout when ROMLIB is used + - xlat_tables_v2: Use ARRAY_SIZE in REGISTER_XLAT_CONTEXT_FULL_SPEC, merge + REGISTER_XLAT_CONTEXT\_{FULL_SPEC,RO_BASE_TABLE}, and simplify end address + checks in mmap_add_region_check() +- Platforms + - allwinner: Adjust SRAM A2 base to include the ARISC vectors, clean up MMU + setup, reenable USE_COHERENT_MEM, remove unused include path, move the + NOBITS region to SRAM A1, convert AXP803 regulator setup code into a driver, + enable clock before resetting I2C/RSB + - allwinner: h6: power: Switch to using the AXP driver + - allwinner: a64: power: Use fdt_for_each_subnode, remove obsolete register + check, remove duplicate DT check, and make sunxi_turn_off_soc static + - allwinner: Build PMIC bus drivers only in BL31, clean up PMIC-related error + handling, and synchronize PMIC enumerations + - arm/a5ds: Change boot address to point to DDR address + - arm/common: Check for out-of-bound accesses in the platform io policies + - arm/corstone700: Updating the kernel arguments to support initramfs, use + fdts DDR memory and XIP rootfs, and set UART clocks to 32MHz + - arm/fvp: Modify multithreaded dts file of DynamIQ FVPs, slightly bump the + stack size for bl1 and bl2, remove re-definition of topology related build + options, stop reclaiming init code with Clang builds, and map only the + needed DRAM region statically in BL31/SP_MIN + - arm/juno: Maximize space allocated to SCP_BL2 + - arm/sgi: Bump bl1 RW limit, mark remote chip shared ram as non-cacheable, + move GIC related constants to board files, include AFF3 affinity in core + position calculation, move bl31_platform_setup to board file, and move + topology information to board folder + - common: Refactor load_auth_image_internal(). + - hisilicon: Remove uefi-tools in hikey and hikey960 documentation + - intel: Modify non secure access function, BL31 address mapping, mailbox's + get_config_status, and stratix10 BL31 parameter handling + - intel: Remove un-needed checks for qspi driver r/w and s10 unused source + code + - intel: Change all global sip function to static + - intel: Refactor common platform code + - intel: Create SiP service header file + - marvell: armada: scp_bl2: Allow loading up to 8 images + - marvell: comphy-a3700: Support SGMII COMPHY power off and fix USB3 powering + on when on lane 2 + - marvell: Consolidate console register calls + - mediatek: mt8183: Protect 4GB~8GB dram memory, refine GIC driver for low + power scenarios, and switch PLL/CLKSQ/ck_off/axi_26m control to SPM + - qemu: Update flash address map to keep FIP in secure FLASH0 + - renesas: rcar_gen3: Update IPL and Secure Monitor Rev.2.0.6, update DDR + setting for H3, M3, M3N, change fixed destination address of BL31 and BL32, + add missing #{address,size}-cells into generated DT, pass DT to OpTee OS, + and move DDR drivers out of staging + - rockchip: Make miniloader ddr_parameter handling optional, cleanup securing + of ddr regions, move secure init to separate file, use base+size for secure + ddr regions, bring TZRAM_SIZE values in lined, and prevent macro expansion + in paths + - rpi: Move plat_helpers.S to common + - rpi3: gpio: Simplify GPIO setup + - rpi4: Skip UART initialisation + - st: stm32m1: Use generic console_t data structure, remove second QSPI flash + instance, update for FMC2 pin muxing, and reduce MAX_XLAT_TABLES to 4 + - socionext: uniphier: Make on-chip SRAM and I/O register regions configurable + - socionext: uniphier: Make PSCI related, counter control, UART, pinmon, NAND + controller, and eMMC controller base addresses configurable + - socionext: uniphier: Change block_addressing flag and the return value type + of .is_usb_boot() to bool + - socionext: uniphier: Run BL33 at EL2, call uniphier_scp_is_running() only + when on-chip STM is supported, define PLAT_XLAT_TABLES_DYNAMIC only for BL2, + support read-only xlat tables, use enable_mmu() in common function, shrink + UNIPHIER_ROM_REGION_SIZE, prepare uniphier_soc_info() for next SoC, extend + boot device detection for future SoCs, make all BL images completely + position-independent, make uniphier_mmap_setup() work with PIE, pass SCP + base address as a function parameter, set buffer offset and length for + io_block dynamically, and use more mmap_add_dynamic_region() for loading + images + - spd/trusty: Disable error messages seen during boot, allow gic base to be + specified with GICD_BASE, and allow getting trusty memsize from + BL32_MEM_SIZE instead of TSP_SEC_MEM_SIZE + - ti: k3: common: Enable ARM cluster power down and rename device IDs to be + more consistent + - ti: k3: drivers: ti_sci: Put sequence number in coherent memory and remove + indirect structure of const data + - xilinx: Move ipi mailbox svc to xilinx common + - xilinx: zynqmp: Use GIC framework for warm restart + - xilinx: zynqmp: pm: Move custom clock flags to typeflags, remove + CLK_TOPSW_LSBUS from invalid clock list and rename FPD WDT clock ID + - xilinx: versal: Increase OCM memory size for DEBUG builds and adjust cpu + clock, Move versal_def.h and versal_private to include directory +- Tools + - sptool: Updated sptool to accommodate building secure partition packages. + +### Resolved Issues + +- Arm Architecture + - Fix crash dump for lower EL +- BL-Specific + - Bug fix: Protect TSP prints with lock + - Fix boot failures on some builds linked with ld.lld. +- Build System + - Fix clang build if CC is not in the path. + - Fix 'BL stage' comment for build macros +- Code Quality + - coverity: Fix various MISRA violations including null pointer violations, C + issues in BL1/BL2/BL31 and FDT helper functions, using boolean essential, + type, and removing unnecessary header file and comparisons to LONG_MAX in + debugfs devfip + - Based on coding guidelines, replace all `unsigned long` depending on if + fixed based on AArch32 or AArch64. + - Unify type of "cpu_idx" and Platform specific defines across PSCI module. +- Drivers + - auth: Necessary fix in drivers to upgrade to mbedtls-2.18.0 + - delay_timer: Fix non-standard frequency issue in udelay + - gicv3: Fix compiler dependent behavior + - gic600: Fix include ordering according to the coding style and power up + sequence +- Library Code + - el3_runtime: Fix stack pointer maintenance on EA handling path, fixup + 'cm_setup_context' prototype, and adds TPIDR_EL2 register to the context + save restore routines + - libc: Fix SIZE_MAX on AArch32 + - locks: T589: Fix insufficient ordering guarantees in bakery lock + - pmf: Fix 'tautological-constant-compare' error, Make the runtime + instrumentation work on AArch32, and Simplify PMF helper macro definitions + across header files + - xlat_tables_v2: Fix assembler warning of PLAT_RO_XLAT_TABLES +- Platforms + - allwinner: Fix H6 GPIO and CCU memory map addresses and incorrect ARISC code + patch offset check + - arm/a5ds: Correct system freq and Cache Writeback Granule, and cleanup + enable-method in devicetree + - arm/fvp: Fix incorrect GIC mapping, BL31 load address and image size for + RESET_TO_BL31=1, topology description of cpus for DynamIQ based FVP, and + multithreaded FVP power domain tree + - arm/fvp: spm-mm: Correcting instructions to build SPM for FVP + - arm/common: Fix ROTPK hash generation for ECDSA encryption, BL2 bug in + dynamic configuration initialisation, and current RECLAIM_INIT_CODE behavior + - arm/rde1edge: Fix incorrect topology tree description + - arm/sgi: Fix the incorrect check for SCMI channel ID + - common: Flush dcache when storing timestamp + - intel: Fix UEFI decompression issue, memory calibration, SMC SIP service, + mailbox config return status, mailbox driver logic, FPGA manager on + reconfiguration, and mailbox send_cmd issue + - imx: Fix shift-overflow errors, the rdc memory region slot's offset, + multiple definition of ipc_handle, missing inclusion of cdefs.h, and correct + the SGIs that used for secure interrupt + - mediatek: mt8183: Fix AARCH64 init fail on CPU0 + - rockchip: Fix definition of struct param_ddr_usage + - rpi4: Fix documentation of armstub config entry + - st: Correct io possible NULL pointer dereference and device_size type, nand + xor_ecc.val assigned value, static analysis tool issues, and fix incorrect + return value and correctly check pwr-regulators node + - xilinx: zynqmp: Correct syscnt freq for QEMU and fix clock models and IDs of + GEM-related clocks + +### Known Issues + +- Build System + - dtb: DTB creation not supported when building on a Windows host. + + This step in the build process is skipped when running on a Windows host. A + known issue from the 1.6 release. + + - Intermittent assertion firing `ASSERT: services/spd/tspd/tspd_main.c:105` +- Coverity + - Intermittent Race condition in Coverity Jenkins Build Job +- Platforms + - arm/juno: System suspend from Linux does not function as documented in the + user guide + + Following the instructions provided in the user guide document does not + result in the platform entering system suspend state as expected. A message + relating to the hdlcd driver failing to suspend will be emitted on the Linux + terminal. + + - mediatek/mt6795: This platform does not build in this release + +## 2.2 (2019-10-22) + +### New Features + +- Architecture + - Enable Pointer Authentication (PAuth) support for Secure World + + - Adds support for ARMv8.3-PAuth in BL1 SMC calls and BL2U image for + firmware updates. + + - Enable Memory Tagging Extension (MTE) support in both secure and non-secure + worlds + + - Adds support for the new Memory Tagging Extension arriving in ARMv8.5. MTE + support is now enabled by default on systems that support it at EL0. + - To enable it at ELx for both the non-secure and the secure world, the + compiler flag `CTX_INCLUDE_MTE_REGS` includes register saving and + restoring when necessary in order to prevent information leakage between + the worlds. + + - Add support for Branch Target Identification (BTI) +- Build System + - Modify FVP makefile for CPUs that support both AArch64/32 + - AArch32: Allow compiling with soft-float toolchain + - Makefile: Add default warning flags + - Add Makefile check for PAuth and AArch64 + - Add compile-time errors for HW_ASSISTED_COHERENCY flag + - Apply compile-time check for AArch64-only CPUs + - build_macros: Add mechanism to prevent bin generation. + - Add support for default stack-protector flag + - spd: opteed: Enable NS_TIMER_SWITCH + - plat/arm: Skip BL2U if RESET_TO_SP_MIN flag is set + - Add new build option to let each platform select which implementation of + spinlocks it wants to use +- CPU Support + - DSU: Workaround for erratum 798953 and 936184 + - Neoverse N1: Force cacheable atomic to near atomic + - Neoverse N1: Workaround for erratum 1073348, 1130799, 1165347, 1207823, + 1220197, 1257314, 1262606, 1262888, 1275112, 1315703, 1542419 + - Neoverse Zeus: Apply the MSR SSBS instruction + - cortex-Hercules/HerculesAE: Support added for Cortex-Hercules and + Cortex-HerculesAE CPUs + - cortex-Hercules/HerculesAE: Enable AMU for Cortex-Hercules and + Cortex-HerculesAE + - cortex-a76AE: Support added for Cortex-A76AE CPU + - cortex-a76: Workaround for erratum 1257314, 1262606, 1262888, 1275112, + 1286807 + - cortex-a65/a65AE: Support added for Cortex-A65 and Cortex-A65AE CPUs + - cortex-a65: Enable AMU for Cortex-A65 + - cortex-a55: Workaround for erratum 1221012 + - cortex-a35: Workaround for erratum 855472 + - cortex-a9: Workaround for erratum 794073 +- Drivers + - console: Allow the console to register multiple times + + - delay: Timeout detection support + + - gicv3: Enabled multi-socket GIC redistributor frame discovery and migrated + ARM platforms to the new API + + - Adds `gicv3_rdistif_probe` function that delegates the responsibility of + discovering the corresponding redistributor base frame to each CPU itself. + + - sbsa: Add SBSA watchdog driver + + - st/stm32_hash: Add HASH driver + + - ti/uart: Add an AArch32 variant +- Library at ROM (romlib) + - Introduce BTI support in Library at ROM (romlib) +- New Platforms Support + - amlogic: g12a: New platform support added for the S905X2 (G12A) platform + - amlogic: meson/gxl: New platform support added for Amlogic Meson S905x (GXL) + - arm/a5ds: New platform support added for A5 DesignStart + - arm/corstone: New platform support added for Corstone-700 + - intel: New platform support added for Agilex + - mediatek: New platform support added for MediaTek mt8183 + - qemu/qemu_sbsa: New platform support added for QEMU SBSA platform + - renesas/rcar_gen3: plat: New platform support added for D3 + - rockchip: New platform support added for px30 + - rockchip: New platform support added for rk3288 + - rpi: New platform support added for Raspberry Pi 4 +- Platforms + - arm/common: Introduce wrapper functions to setup secure watchdog + - arm/fvp: Add Delay Timer driver to BL1 and BL31 and option for defining + platform DRAM2 base + - arm/fvp: Add Linux DTS files for 32 bit threaded FVPs + - arm/n1sdp: Add code for DDR ECC enablement and BL33 copy to DDR, Initialise + CNTFRQ in Non Secure CNTBaseN + - arm/juno: Use shared mbedtls heap between BL1 and BL2 and add basic support + for dynamic config + - imx: Basic support for PicoPi iMX7D, rdc module init, caam module init, + aipstz init, IMX_SIP_GET_SOC_INFO, IMX_SIP_BUILDINFO added + - intel: Add ncore ccu driver + - mediatek/mt81\*: Use new bl31_params_parse() helper + - nvidia: tegra: Add support for multi console interface + - qemu/qemu_sbsa: Adding memory mapping for both FLASH0/FLASH1 + - qemu: Added gicv3 support, new console interface in AArch32, and + sub-platforms + - renesas/rcar_gen3: plat: Add R-Car V3M support, new board revision for + H3ULCB, DBSC4 setting before self-refresh mode + - socionext/uniphier: Support console based on multi-console + - st: stm32mp1: Add OP-TEE, Avenger96, watchdog, LpDDR3, authentication + support and general SYSCFG management + - ti/k3: common: Add support for J721E, Use coherent memory for shared data, + Trap all asynchronous bus errors to EL3 + - xilinx/zynqmp: Add support for multi console interface, Initialize IPI table + from zynqmp_config_setup() +- PSCI + - Adding new optional PSCI hook `pwr_domain_on_finish_late` + - This PSCI hook `pwr_domain_on_finish_late` is similar to + `pwr_domain_on_finish` but is guaranteed to be invoked when the respective + core and cluster are participating in coherency. +- Security + - Speculative Store Bypass Safe (SSBS): Further enhance protection against + Spectre variant 4 by disabling speculative loads/stores (SPSR.SSBS bit) by + default. + - UBSAN support and handlers + - Adds support for the Undefined Behaviour sanitizer. There are two types of + support offered - minimalistic trapping support which essentially + immediately crashes on undefined behaviour and full support with full + debug messages. +- Tools + - cert_create: Add support for bigger RSA key sizes (3KB and 4KB), previously + the maximum size was 2KB. + - fiptool: Add support to build fiptool on Windows. + +### Changed + +- Architecture + - Refactor ARMv8.3 Pointer Authentication support code + - backtrace: Strip PAC field when PAUTH is enabled + - Prettify crash reporting output on AArch64. + - Rework smc_unknown return code path in smc_handler + - Leverage the existing `el3_exit()` return routine for smc_unknown return + path rather than a custom set of instructions. +- BL-Specific + - Invalidate dcache build option for BL2 entry at EL3 + - Add missing support for BL2_AT_EL3 in XIP memory +- Boot Flow + - Add helper to parse BL31 parameters (both versions) + - Factor out cross-BL API into export headers suitable for 3rd party code + - Introduce lightweight BL platform parameter library +- Drivers + - auth: Memory optimization for Chain of Trust (CoT) description + - bsec: Move bsec_mode_is_closed_device() service to platform + - cryptocell: Move Cryptocell specific API into driver + - gicv3: Prevent pending G1S interrupt from becoming G0 interrupt + - mbedtls: Remove weak heap implementation + - mmc: Increase delay between ACMD41 retries + - mmc: stm32_sdmmc2: Correctly manage block size + - mmc: stm32_sdmmc2: Manage max-frequency property from DT + - synopsys/emmc: Do not change FIFO TH as this breaks some platforms + - synopsys: Update synopsys drivers to not rely on undefined overflow + behaviour + - ufs: Extend the delay after reset to wait for some slower chips +- Platforms + - amlogic/meson/gxl: Remove BL2 dependency from BL31 + - arm/common: Shorten the Firmware Update (FWU) process + - arm/fvp: Remove GIC initialisation from secondary core cold boot + - arm/sgm: Temporarily disable shared Mbed TLS heap for SGM + - hisilicon: Update hisilicon drivers to not rely on undefined overflow + behaviour + - imx: imx8: Replace PLAT_IMX8\* with PLAT_imx8\*, remove duplicated linker + symbols and deprecated code include, keep only IRQ 32 unmasked, enable all + power domain by default + - marvell: Prevent SError accessing PCIe link, Switch to xlat_tables_v2, do + not rely on argument passed via smc, make sure that comphy init will use + correct address + - mediatek: mt8173: Refactor RTC and PMIC drivers + - mediatek: mt8173: Apply MULTI_CONSOLE framework + - nvidia: Tegra: memctrl_v2: fix "overflow before widen" coverity issue + - qemu: Simplify the image size calculation, Move and generalise FDT PSCI + fixup, move gicv2 codes to separate file + - renesas/rcar_gen3: Convert to multi-console API, update QoS setting, Update + IPL and Secure Monitor Rev2.0.4, Change to restore timer counter value at + resume, Update DDR setting rev.0.35, qos: change subslot cycle, Change + periodic write DQ training option. + - rockchip: Allow SOCs with undefined wfe check bits, Streamline and complete + UARTn_BASE macros, drop rockchip-specific imported linker symbols for bl31, + Disable binary generation for all SOCs, Allow console device to be set by + DTB, Use new bl31_params_parse functions + - rpi/rpi3: Move shared rpi3 files into common directory + - socionext/uniphier: Set CONSOLE_FLAG_TRANSLATE_CRLF and clean up console + driver + - socionext/uniphier: Replace DIV_ROUND_UP() with div_round_up() from + utils_def.h + - st/stm32mp: Split stm32mp_io_setup function, move + stm32_get_gpio_bank_clock() to private file, correctly handle Clock + Spreading Generator, move oscillator functions to generic file, realign + device tree files with internal devs, enable RTCAPB clock for dual-core + chips, use a common function to check spinlock is available, move + check_header() to common code + - ti/k3: Enable SEPARATE_CODE_AND_RODATA by default, Remove shared RAM space, + Drop \_ADDRESS from K3_USART_BASE to match other defines, Remove MSMC port + definitions, Allow USE_COHERENT_MEM for K3, Set L2 latency on A72 cores +- PSCI + - PSCI: Lookup list of parent nodes to lock only once +- Secure Partition Manager (SPM): SPCI Prototype + - Fix service UUID lookup + - Adjust size of virtual address space per partition + - Refactor xlat context creation + - Move shim layer to TTBR1_EL1 + - Ignore empty regions in resource description +- Security + - Refactor SPSR initialisation code + - SMMUv3: Abort DMA transactions + - For security DMA should be blocked at the SMMU by default unless + explicitly enabled for a device. SMMU is disabled after reset with all + streams bypassing the SMMU, and abortion of all incoming transactions + implements a default deny policy on reset. + - Moves `bl1_platform_setup()` function from arm_bl1_setup.c to FVP + platforms' fvp_bl1_setup.c and fvp_ve_bl1_setup.c files. +- Tools + - cert_create: Remove RSA PKCS#1 v1.5 support + +### Resolved Issues + +- Architecture + - Fix the CAS spinlock implementation by adding a missing DSB in + `spin_unlock()` + - AArch64: Fix SCTLR bit definitions + - Removes incorrect `SCTLR_V_BIT` definition and adds definitions for + ARMv8.3-Pauth `EnIB`, `EnDA` and `EnDB` bits. + - Fix restoration of PAuth context + - Replace call to `pauth_context_save()` with `pauth_context_restore()` in + case of unknown SMC call. +- BL-Specific Issues + - Fix BL31 crash reporting on AArch64 only platforms +- Build System + - Remove several warnings reported with W=2 and W=1 +- Code Quality Issues + - SCTLR and ACTLR are 32-bit for AArch32 and 64-bit for AArch64 + - Unify type of "cpu_idx" across PSCI module. + - Assert if power level value greater then PSCI_INVALID_PWR_LVL + - Unsigned long should not be used as per coding guidelines + - Reduce the number of memory leaks in cert_create + - Fix type of cot_desc_ptr + - Use explicit-width data types in AAPCS parameter structs + - Add python configuration for editorconfig + - BL1: Fix type consistency + - Enable -Wshift-overflow=2 to check for undefined shift behavior + - Updated upstream platforms to not rely on undefined overflow behaviour +- Coverity Quality Issues + - Remove GGC ignore -Warray-bounds + - Fix Coverity #261967, Infinite loop + - Fix Coverity #343017, Missing unlock + - Fix Coverity #343008, Side affect in assertion + - Fix Coverity #342970, Uninitialized scalar variable +- CPU Support + - cortex-a12: Fix MIDR mask +- Drivers + - console: Remove Arm console unregister on suspend + - gicv3: Fix support for full SPI range + - scmi: Fix wrong payload length +- Library Code + - libc: Fix sparse warning for \_\_assert() + - libc: Fix memchr implementation +- Platforms + - rpi: rpi3: Fix compilation error when stack protector is enabled + - socionext/uniphier: Fix compilation fail for SPM support build config + - st/stm32mp1: Fix TZC400 configuration against non-secure DDR + - ti/k3: common: Fix RO data area size calculation +- Security + - AArch32: Disable Secure Cycle Counter + - Changes the implementation for disabling Secure Cycle Counter. For ARMv8.5 + the counter gets disabled by setting `SDCR.SCCD` bit on CPU cold/warm + boot. For the earlier architectures PMCR register is saved/restored on + secure world entry/exit from/to Non-secure state, and cycle counting gets + disabled by setting PMCR.DP bit. + - AArch64: Disable Secure Cycle Counter + - For ARMv8.5 the counter gets disabled by setting `MDCR_El3.SCCD` bit on + CPU cold/warm boot. For the earlier architectures PMCR_EL0 register is + saved/restored on secure world entry/exit from/to Non-secure state, and + cycle counting gets disabled by setting PMCR_EL0.DP bit. + +### Deprecations + +- Common Code + - Remove MULTI_CONSOLE_API flag and references to it + - Remove deprecated `plat_crash_console_*` + - Remove deprecated interfaces `get_afflvl_shift`, `mpidr_mask_lower_afflvls`, + `eret` + - AARCH32/AARCH64 macros are now deprecated in favor of `__aarch64__` + - `__ASSEMBLY__` macro is now deprecated in favor of `__ASSEMBLER__` +- Drivers + - console: Removed legacy console API + - console: Remove deprecated finish_console_register + - tzc: Remove deprecated types `tzc_action_t` and `tzc_region_attributes_t` +- Secure Partition Manager (SPM): + - Prototype SPCI-based SPM (services/std_svc/spm) will be replaced with + alternative methods of secure partitioning support. + +### Known Issues + +- Build System Issues + - dtb: DTB creation not supported when building on a Windows host. + + This step in the build process is skipped when running on a Windows host. A + known issue from the 1.6 release. +- Platform Issues + - arm/juno: System suspend from Linux does not function as documented in the + user guide + + Following the instructions provided in the user guide document does not + result in the platform entering system suspend state as expected. A message + relating to the hdlcd driver failing to suspend will be emitted on the Linux + terminal. + + - mediatek/mt6795: This platform does not build in this release + +## 2.1 (2019-03-29) + +### New Features + +- Architecture + + - Support for ARMv8.3 pointer authentication in the normal and secure worlds + + The use of pointer authentication in the normal world is enabled whenever + architectural support is available, without the need for additional build + flags. + + Use of pointer authentication in the secure world remains an experimental + configuration at this time. Using both the `ENABLE_PAUTH` and + `CTX_INCLUDE_PAUTH_REGS` build flags, pointer authentication can be enabled + in EL3 and S-EL1/0. + + See the {ref}`Firmware Design` document for additional details on the use of + pointer authentication. + + - Enable Data Independent Timing (DIT) in EL3, where supported + +- Build System + + - Support for BL-specific build flags + + - Support setting compiler target architecture based on `ARM_ARCH_MINOR` build + option. + + - New `RECLAIM_INIT_CODE` build flag: + + A significant amount of the code used for the initialization of BL31 is not + needed again after boot time. In order to reduce the runtime memory + footprint, the memory used for this code can be reclaimed after + initialization. + + Certain boot-time functions were marked with the `__init` attribute to + enable this reclamation. + +- CPU Support + + - cortex-a76: Workaround for erratum 1073348 + - cortex-a76: Workaround for erratum 1220197 + - cortex-a76: Workaround for erratum 1130799 + - cortex-a75: Workaround for erratum 790748 + - cortex-a75: Workaround for erratum 764081 + - cortex-a73: Workaround for erratum 852427 + - cortex-a73: Workaround for erratum 855423 + - cortex-a57: Workaround for erratum 817169 + - cortex-a57: Workaround for erratum 814670 + - cortex-a55: Workaround for erratum 903758 + - cortex-a55: Workaround for erratum 846532 + - cortex-a55: Workaround for erratum 798797 + - cortex-a55: Workaround for erratum 778703 + - cortex-a55: Workaround for erratum 768277 + - cortex-a53: Workaround for erratum 819472 + - cortex-a53: Workaround for erratum 824069 + - cortex-a53: Workaround for erratum 827319 + - cortex-a17: Workaround for erratum 852423 + - cortex-a17: Workaround for erratum 852421 + - cortex-a15: Workaround for erratum 816470 + - cortex-a15: Workaround for erratum 827671 + +- Documentation + + - Exception Handling Framework documentation + - Library at ROM (romlib) documentation + - RAS framework documentation + - Coding Guidelines document + +- Drivers + + - ccn: Add API for setting and reading node registers + + - Adds `ccn_read_node_reg` function + - Adds `ccn_write_node_reg` function + + - partition: Support MBR partition entries + + - scmi: Add `plat_css_get_scmi_info` function + + Adds a new API `plat_css_get_scmi_info` which lets the platform register a + platform-specific instance of `scmi_channel_plat_info_t` and remove the + default values + + - tzc380: Add TZC-380 TrustZone Controller driver + + - tzc-dmc620: Add driver to manage the TrustZone Controller within the DMC-620 + Dynamic Memory Controller + +- Library at ROM (romlib) + + - Add platform-specific jump table list + + - Allow patching of romlib functions + + This change allows patching of functions in the romlib. This can be done by + adding "patch" at the end of the jump table entry for the function that + needs to be patched in the file jmptbl.i. + +- Library Code + + - Support non-LPAE-enabled MMU tables in AArch32 + - mmio: Add `mmio_clrsetbits_16` function + - 16-bit variant of `mmio_clrsetbits` + - object_pool: Add Object Pool Allocator + - Manages object allocation using a fixed-size static array + - Adds `pool_alloc` and `pool_alloc_n` functions + - Does not provide any functions to free allocated objects (by design) + - libc: Added `strlcpy` function + - libc: Import `strrchr` function from FreeBSD + - xlat_tables: Add support for ARMv8.4-TTST + - xlat_tables: Support mapping regions without an explicitly specified VA + +- Math + + - Added softudiv macro to support software division + +- Memory Partitioning And Monitoring (MPAM) + + - Enabled MPAM EL2 traps (`MPAMHCR_EL2` and `MPAM_EL2`) + +- Platforms + + - amlogic: Add support for Meson S905 (GXBB) + + - arm/fvp_ve: Add support for FVP Versatile Express platform + + - arm/n1sdp: Add support for Neoverse N1 System Development platform + + - arm/rde1edge: Add support for Neoverse E1 platform + + - arm/rdn1edge: Add support for Neoverse N1 platform + + - arm: Add support for booting directly to Linux without an intermediate + loader (AArch32) + + - arm/juno: Enable new CPU errata workarounds for A53 and A57 + + - arm/juno: Add romlib support + + Building a combined BL1 and ROMLIB binary file with the correct page + alignment is now supported on the Juno platform. When `USE_ROMLIB` is set + for Juno, it generates the combined file `bl1_romlib.bin` which needs to be + used instead of bl1.bin. + + - intel/stratix: Add support for Intel Stratix 10 SoC FPGA platform + + - marvell: Add support for Armada-37xx SoC platform + + - nxp: Add support for i.MX8M and i.MX7 Warp7 platforms + + - renesas: Add support for R-Car Gen3 platform + + - xilinx: Add support for Versal ACAP platforms + +- Position-Independent Executable (PIE) + + PIE support has initially been added to BL31. The `ENABLE_PIE` build flag is + used to enable or disable this functionality as required. + +- Secure Partition Manager + + - New SPM implementation based on SPCI Alpha 1 draft specification + + A new version of SPM has been implemented, based on the SPCI (Secure + Partition Client Interface) and SPRT (Secure Partition Runtime) draft + specifications. + + The new implementation is a prototype that is expected to undergo intensive + rework as the specifications change. It has basic support for multiple + Secure Partitions and Resource Descriptions. + + The older version of SPM, based on MM (ARM Management Mode Interface + Specification), is still present in the codebase. A new build flag, `SPM_MM` + has been added to allow selection of the desired implementation. This flag + defaults to 1, selecting the MM-based implementation. + +- Security + + - Spectre Variant-1 mitigations (`CVE-2017-5753`) + + - Use Speculation Store Bypass Safe (SSBS) functionality where available + + Provides mitigation against `CVE-2018-19440` (Not saving x0 to x3 registers + can leak information from one Normal World SMC client to another) + +### Changed + +- Build System + + - Warning levels are now selectable with `W=<1,2,3>` + - Removed unneeded include paths in PLAT_INCLUDES + - "Warnings as errors" (Werror) can be disabled using `E=0` + - Support totally quiet output with `-s` flag + - Support passing options to checkpatch using `CHECKPATCH_OPTS=<opts>` + - Invoke host compiler with `HOSTCC / HOSTCCFLAGS` instead of `CC / CFLAGS` + - Make device tree pre-processing similar to U-boot/Linux by: + - Creating separate `CPPFLAGS` for DT preprocessing so that compiler options + specific to it can be accommodated. + - Replacing `CPP` with `PP` for DT pre-processing + +- CPU Support + + - Errata report function definition is now mandatory for CPU support files + + CPU operation files must now define a `<name>_errata_report` function to + print errata status. This is no longer a weak reference. + +- Documentation + + - Migrated some content from GitHub wiki to `docs/` directory + - Security advisories now have CVE links + - Updated copyright guidelines + +- Drivers + + - console: The `MULTI_CONSOLE_API` framework has been rewritten in C + + - console: Ported multi-console driver to AArch32 + + - gic: Remove 'lowest priority' constants + + Removed `GIC_LOWEST_SEC_PRIORITY` and `GIC_LOWEST_NS_PRIORITY`. Platforms + should define these if required, or instead determine the correct priority + values at runtime. + + - delay_timer: Check that the Generic Timer extension is present + + - mmc: Increase command reply timeout to 10 milliseconds + + - mmc: Poll eMMC device status to ensure `EXT_CSD` command completion + + - mmc: Correctly check return code from `mmc_fill_device_info` + +- External Libraries + + - libfdt: Upgraded from 1.4.2 to 1.4.6-9 + + > + + - mbed TLS: Upgraded from 2.12 to 2.16 + + > + + This change incorporates fixes for security issues that should be reviewed to + determine if they are relevant for software implementations using Trusted + Firmware-A. See the [mbed TLS releases] page for details on changes from the + 2.12 to the 2.16 release. + +- Library Code + + - compiler-rt: Updated `lshrdi3.c` and `int_lib.h` with changes from LLVM + master branch (r345645) + - cpu: Updated macro that checks need for `CVE-2017-5715` mitigation + - libc: Made setjmp and longjmp C standard compliant + - libc: Allowed overriding the default libc (use `OVERRIDE_LIBC`) + - libc: Moved setjmp and longjmp to the `libc/` directory + +- Platforms + + - Removed Mbed TLS dependency from plat_bl_common.c + + - arm: Removed unused `ARM_MAP_BL_ROMLIB` macro + + - arm: Removed `ARM_BOARD_OPTIMISE_MEM` feature and build flag + + - arm: Moved several components into `drivers/` directory + + This affects the SDS, SCP, SCPI, MHU and SCMI components + + - arm/juno: Increased maximum BL2 image size to `0xF000` + + This change was required to accommodate a larger `libfdt` library + +- SCMI + + - Optimized bakery locks when hardware-assisted coherency is enabled using the + `HW_ASSISTED_COHERENCY` build flag + +- SDEI + + - Added support for unconditionally resuming secure world execution after {{ + SDEI }} event processing completes + + {{ SDEI }} interrupts, although targeting EL3, occur on behalf of the + non-secure world, and may have higher priority than secure world interrupts. + Therefore they might preempt secure execution and yield execution to the + non-secure {{ SDEI }} handler. Upon completion of {{ SDEI }} event handling, + resume secure execution if it was preempted. + +- Translation Tables (XLAT) + + - Dynamically detect need for `Common not Private (TTBRn_ELx.CnP)` bit + + Properly handle the case where `ARMv8.2-TTCNP` is implemented in a CPU that + does not implement all mandatory v8.2 features (and so must claim to + implement a lower architecture version). + +### Resolved Issues + +- Architecture + - Incorrect check for SSBS feature detection + - Unintentional register clobber in AArch32 reset_handler function +- Build System + - Dependency issue during DTB image build + - Incorrect variable expansion in Arm platform makefiles + - Building on Windows with verbose mode (`V=1`) enabled is broken + - AArch32 compilation flags is missing `$(march32-directive)` +- BL-Specific Issues + - bl2: `uintptr_t is not defined` error when `BL2_IN_XIP_MEM` is defined + - bl2: Missing prototype warning in `bl2_arch_setup` + - bl31: Omission of Global Offset Table (GOT) section +- Code Quality Issues + - Multiple MISRA compliance issues + - Potential NULL pointer dereference (Coverity-detected) +- Drivers + - mmc: Local declaration of `scr` variable causes a cache issue when + invalidating after the read DMA transfer completes + - mmc: `ACMD41` does not send voltage information during initialization, + resulting in the command being treated as a query. This prevents the command + from initializing the controller. + - mmc: When checking device state using `mmc_device_state()` there are no + retries attempted in the event of an error + - ccn: Incorrect Region ID calculation for RN-I nodes + - console: `Fix MULTI_CONSOLE_API` when used as a crash console + - partition: Improper NULL checking in gpt.c + - partition: Compilation failure in `VERBOSE` mode (`V=1`) +- Library Code + - common: Incorrect check for Address Authentication support + + - xlat: Fix XLAT_V1 / XLAT_V2 incompatibility + + The file `arm_xlat_tables.h` has been renamed to `xlat_tables_compat.h` and + has been moved to a common folder. This header can be used to guarantee + compatibility, as it includes the correct header based on + `XLAT_TABLES_LIB_V2`. + + - xlat: armclang unused-function warning on `xlat_clean_dcache_range` + + - xlat: Invalid `mm_cursor` checks in `mmap_add` and `mmap_add_ctx` + + - sdei: Missing `context.h` header +- Platforms + - common: Missing prototype warning for `plat_log_get_prefix` + + - arm: Insufficient maximum BL33 image size + + - arm: Potential memory corruption during BL2-BL31 transition + + On Arm platforms, the BL2 memory can be overlaid by BL31/BL32. The memory + descriptors describing the list of executable images are created in BL2 R/W + memory, which could be possibly corrupted later on by BL31/BL32 due to + overlay. This patch creates a reserved location in SRAM for these + descriptors and are copied over by BL2 before handing over to next BL image. + + - juno: Invalid behaviour when `CSS_USE_SCMI_SDS_DRIVER` is not set + + In `juno_pm.c` the `css_scmi_override_pm_ops` function was used regardless + of whether the build flag was set. The original behaviour has been restored + in the case where the build flag is not set. +- Tools + - fiptool: Incorrect UUID parsing of blob parameters + - doimage: Incorrect object rules in Makefile + +### Deprecations + +- Common Code + - `plat_crash_console_init` function + - `plat_crash_console_putc` function + - `plat_crash_console_flush` function + - `finish_console_register` macro +- AArch64-specific Code + - helpers: `get_afflvl_shift` + - helpers: `mpidr_mask_lower_afflvls` + - helpers: `eret` +- Secure Partition Manager (SPM) + - Boot-info structure + +### Known Issues + +- Build System Issues + - dtb: DTB creation not supported when building on a Windows host. + + This step in the build process is skipped when running on a Windows host. A + known issue from the 1.6 release. +- Platform Issues + - arm/juno: System suspend from Linux does not function as documented in the + user guide + + Following the instructions provided in the user guide document does not + result in the platform entering system suspend state as expected. A message + relating to the hdlcd driver failing to suspend will be emitted on the Linux + terminal. + + - arm/juno: The firmware update use-cases do not work with motherboard + firmware version \< v1.5.0 (the reset reason is not preserved). The Linaro + 18.04 release has MB v1.4.9. The MB v1.5.0 is available in Linaro 18.10 + release. + + - mediatek/mt6795: This platform does not build in this release + +## 2.0 (2018-10-02) + +### New Features + +- Removal of a number of deprecated APIs + + - A new Platform Compatibility Policy document has been created which + references a wiki page that maintains a listing of deprecated interfaces and + the release after which they will be removed. + - All deprecated interfaces except the MULTI_CONSOLE_API have been removed + from the code base. + - Various Arm and partner platforms have been updated to remove the use of + removed APIs in this release. + - This release is otherwise unchanged from 1.6 release + +### Issues resolved since last release + +- No issues known at 1.6 release resolved in 2.0 release + +### Known Issues + +- DTB creation not supported when building on a Windows host. This step in the + build process is skipped when running on a Windows host. Known issue from 1.6 + version. +- As a result of removal of deprecated interfaces the Nvidia Tegra, Marvell + Armada 8K and MediaTek MT6795 platforms do not build in this release. Also + MediaTek MT8173, NXP QorIQ LS1043A, NXP i.MX8QX, NXP i.MX8QMa, Rockchip + RK3328, Rockchip RK3368 and Rockchip RK3399 platforms have not been confirmed + to be working after the removal of the deprecated interfaces although they do + build. + +## 1.6 (2018-09-21) + +### New Features + +- Addressing Speculation Security Vulnerabilities + + - Implement static workaround for CVE-2018-3639 for AArch32 and AArch64 + - Add support for dynamic mitigation for CVE-2018-3639 + - Implement dynamic mitigation for CVE-2018-3639 on Cortex-A76 + - Ensure {{ SDEI }} handler executes with CVE-2018-3639 mitigation enabled + +- Introduce RAS handling on AArch64 + + - Some RAS extensions are mandatory for Armv8.2 CPUs, with others mandatory + for Armv8.4 CPUs however, all extensions are also optional extensions to the + base Armv8.0 architecture. + - The Armv8 RAS Extensions introduced Standard Error Records which are a set + of standard registers to configure RAS node policy and allow RAS Nodes to + record and expose error information for error handling agents. + - Capabilities are provided to support RAS Node enumeration and iteration + along with individual interrupt registrations and fault injections support. + - Introduce handlers for Uncontainable errors, Double Faults and EL3 External + Aborts + +- Enable Memory Partitioning And Monitoring (MPAM) for lower EL's + + - Memory Partitioning And Monitoring is an Armv8.4 feature that enables + various memory system components and resources to define partitions. + Software running at various ELs can then assign themselves to the desired + partition to control their performance aspects. + - When ENABLE_MPAM_FOR_LOWER_ELS is set to 1, EL3 allows lower ELs to access + their own MPAM registers without trapping to EL3. This patch however, + doesn't make use of partitioning in EL3; platform initialisation code should + configure and use partitions in EL3 if required. + +- Introduce ROM Lib Feature + + - Support combining several libraries into a self-called "romlib" image, that + may be shared across images to reduce memory footprint. The romlib image is + stored in ROM but is accessed through a jump-table that may be stored in + read-write memory, allowing for the library code to be patched. + +- Introduce Backtrace Feature + + - This function displays the backtrace, the current EL and security state to + allow a post-processing tool to choose the right binary to interpret the + dump. + - Print backtrace in assert() and panic() to the console. + +- Code hygiene changes and alignment with MISRA C-2012 guideline with fixes + addressing issues complying to the following rules: + + - MISRA rules 4.9, 5.1, 5.3, 5.7, 8.2-8.5, 8.8, 8.13, 9.3, 10.1, 10.3-10.4, + 10.8, 11.3, 11.6, 12.1, 14.4, 15.7, 16.1-16.7, 17.7-17.8, 20.7, 20.10, + 20.12, 21.1, 21.15, 22.7 + - Clean up the usage of void pointers to access symbols + - Increase usage of static qualifier to locally used functions and data + - Migrated to use of u_register_t for register read/write to better match + AArch32 and AArch64 type sizes + - Use int-ll64 for both AArch32 and AArch64 to assist in consistent format + strings between architectures + - Clean up TF-A libc by removing non arm copyrighted implementations and + replacing them with modified FreeBSD and SCC implementations + +- Various changes to support Clang linker and assembler + + - The clang assembler/preprocessor is used when Clang is selected. However, + the clang linker is not used because it is unable to link TF-A objects due + to immaturity of clang linker functionality at this time. + +- Refactor support APIs into Libraries + + - Evolve libfdt, mbed TLS library and standard C library sources as proper + libraries that TF-A may be linked against. + +- CPU Enhancements + + - Add CPU support for Cortex-Ares and Cortex-A76 + - Add AMU support for Cortex-Ares + - Add initial CPU support for Cortex-Deimos + - Add initial CPU support for Cortex-Helios + - Implement dynamic mitigation for CVE-2018-3639 on Cortex-A76 + - Implement Cortex-Ares erratum 1043202 workaround + - Implement DSU erratum 936184 workaround + - Check presence of fix for errata 843419 in Cortex-A53 + - Check presence of fix for errata 835769 in Cortex-A53 + +- Translation Tables Enhancements + + - The xlat v2 library has been refactored in order to be reused by different + TF components at different EL's including the addition of EL2. Some + refactoring to make the code more generic and less specific to TF, in order + to reuse the library outside of this project. + +- SPM Enhancements + + - General cleanups and refactoring to pave the way to multiple partitions + support + +- SDEI Enhancements + + - Allow platforms to define explicit events + - Determine client EL from NS context's SCR_EL3 + - Make dispatches synchronous + - Introduce jump primitives for BL31 + - Mask events after CPU wakeup in {{ SDEI }} dispatcher to conform to the + specification + +- Misc TF-A Core Common Code Enhancements + + - Add support for eXecute In Place (XIP) memory in BL2 + - Add support for the SMC Calling Convention 2.0 + - Introduce External Abort handling on AArch64 External Abort routed to EL3 + was reported as an unhandled exception and caused a panic. This change + enables Trusted Firmware-A to handle External Aborts routed to EL3. + - Save value of ACTLR_EL1 implementation-defined register in the CPU context + structure rather than forcing it to 0. + - Introduce ARM_LINUX_KERNEL_AS_BL33 build option, which allows BL31 to + directly jump to a Linux kernel. This makes for a quicker and simpler boot + flow, which might be useful in some test environments. + - Add dynamic configurations for BL31, BL32 and BL33 enabling support for + Chain of Trust (COT). + - Make TF UUID RFC 4122 compliant + +- New Platform Support + + - Arm SGI-575 + - Arm SGM-775 + - Allwinner sun50i_64 + - Allwinner sun50i_h6 + - NXP QorIQ LS1043A + - NXP i.MX8QX + - NXP i.MX8QM + - NXP i.MX7Solo WaRP7 + - TI K3 + - Socionext Synquacer SC2A11 + - Marvell Armada 8K + - STMicroelectronics STM32MP1 + +- Misc Generic Platform Common Code Enhancements + + - Add MMC framework that supports both eMMC and SD card devices + +- Misc Arm Platform Common Code Enhancements + + - Demonstrate PSCI MEM_PROTECT from el3_runtime + - Provide RAS support + - Migrate AArch64 port to the multi console driver. The old API is deprecated + and will eventually be removed. + - Move BL31 below BL2 to enable BL2 overlay resulting in changes in the layout + of BL images in memory to enable more efficient use of available space. + - Add cpp build processing for dtb that allows processing device tree with + external includes. + - Extend FIP io driver to support multiple FIP devices + - Add support for SCMI AP core configuration protocol v1.0 + - Use SCMI AP core protocol to set the warm boot entrypoint + - Add support to Mbed TLS drivers for shared heap among different BL images to + help optimise memory usage + - Enable non-secure access to UART1 through a build option to support a serial + debug port for debugger connection + +- Enhancements for Arm Juno Platform + + - Add support for TrustZone Media Protection 1 (TZMP1) + +- Enhancements for Arm FVP Platform + + - Dynamic_config: remove the FVP dtb files + - Set DYNAMIC_WORKAROUND_CVE_2018_3639=1 on FVP by default + - Set the ability to dynamically disable Trusted Boot Board authentication to + be off by default with DYN_DISABLE_AUTH + - Add librom enhancement support in FVP + - Support shared Mbed TLS heap between BL1 and BL2 that allow a reduction in + BL2 size for FVP + +- Enhancements for Arm SGI/SGM Platform + + - Enable ARM_PLAT_MT flag for SGI-575 + - Add dts files to enable support for dynamic config + - Add RAS support + - Support shared Mbed TLS heap for SGI and SGM between BL1 and BL2 + +- Enhancements for Non Arm Platforms + + - Raspberry Pi Platform + - Hikey Platforms + - Xilinx Platforms + - QEMU Platform + - Rockchip rk3399 Platform + - TI Platforms + - Socionext Platforms + - Allwinner Platforms + - NXP Platforms + - NVIDIA Tegra Platform + - Marvell Platforms + - STMicroelectronics STM32MP1 Platform + +### Issues resolved since last release + +- No issues known at 1.5 release resolved in 1.6 release + +### Known Issues + +- DTB creation not supported when building on a Windows host. This step in the + build process is skipped when running on a Windows host. Known issue from 1.5 + version. + +## 1.5 (2018-03-20) + +### New features + +- Added new firmware support to enable RAS (Reliability, Availability, and + Serviceability) functionality. + + - Secure Partition Manager (SPM): A Secure Partition is a software execution + environment instantiated in S-EL0 that can be used to implement simple + management and security services. The SPM is the firmware component that is + responsible for managing a Secure Partition. + + - SDEI dispatcher: Support for interrupt-based {{ SDEI }} events and all + interfaces as defined by the {{ SDEI }} specification v1.0, see + [SDEI Specification] + + - Exception Handling Framework (EHF): Framework that allows dispatching of EL3 + interrupts to their registered handlers which are registered based on their + priorities. Facilitates firmware-first error handling policy where + asynchronous exceptions may be routed to EL3. + + Integrated the TSPD with EHF. + +- Updated PSCI support: + + - Implemented PSCI v1.1 optional features `MEM_PROTECT` and `SYSTEM_RESET2`. + The supported PSCI version was updated to v1.1. + + - Improved PSCI STAT timestamp collection, including moving accounting for + retention states to be inside the locks and fixing handling of wrap-around + when calculating residency in AArch32 execution state. + + - Added optional handler for early suspend that executes when suspending to a + power-down state and with data caches enabled. + + This may provide a performance improvement on platforms where it is safe to + perform some or all of the platform actions from `pwr_domain_suspend` with + the data caches enabled. + +- Enabled build option, BL2_AT_EL3, for BL2 to allow execution at EL3 without + any dependency on TF BL1. + + This allows platforms which already have a non-TF Boot ROM to directly load + and execute BL2 and subsequent BL stages without need for BL1. This was not + previously possible because BL2 executes at S-EL1 and cannot jump straight to + EL3. + +- Implemented support for SMCCC v1.1, including `SMCCC_VERSION` and + `SMCCC_ARCH_FEATURES`. + + Additionally, added support for `SMCCC_VERSION` in PSCI features to enable + discovery of the SMCCC version via PSCI feature call. + +- Added Dynamic Configuration framework which enables each of the boot loader + stages to be dynamically configured at runtime if required by the platform. + The boot loader stage may optionally specify a firmware configuration file + and/or hardware configuration file that can then be shared with the next boot + loader stage. + + Introduced a new BL handover interface that essentially allows passing of 4 + arguments between the different BL stages. + + Updated cert_create and fip_tool to support the dynamic configuration files. + The COT also updated to support these new files. + +- Code hygiene changes and alignment with MISRA guideline: + + - Fix use of undefined macros. + - Achieved compliance with Mandatory MISRA coding rules. + - Achieved compliance for following Required MISRA rules for the default build + configurations on FVP and Juno platforms : 7.3, 8.3, 8.4, 8.5 and 8.8. + +- Added support for Armv8.2-A architectural features: + + - Updated translation table set-up to set the CnP (Common not Private) bit for + secure page tables so that multiple PEs in the same Inner Shareable domain + can use the same translation table entries for a given stage of translation + in a particular translation regime. + - Extended the supported values of ID_AA64MMFR0_EL1.PARange to include the + 52-bit Physical Address range. + - Added support for the Scalable Vector Extension to allow Normal world + software to access SVE functionality but disable access to SVE, SIMD and + floating point functionality from the Secure world in order to prevent + corruption of the Z-registers. + +- Added support for Armv8.4-A architectural feature Activity Monitor Unit (AMU) + + extensions. + + In addition to the v8.4 architectural extension, AMU support on Cortex-A75 was + implemented. + +- Enhanced OP-TEE support to enable use of pageable OP-TEE image. The Arm + standard platforms are updated to load up to 3 images for OP-TEE; header, + pager image and paged image. + + The chain of trust is extended to support the additional images. + +- Enhancements to the translation table library: + + - Introduced APIs to get and set the memory attributes of a region. + - Added support to manage both privilege levels in translation regimes that + describe translations for 2 Exception levels, specifically the EL1&0 + translation regime, and extended the memory map region attributes to include + specifying Non-privileged access. + - Added support to specify the granularity of the mappings of each region, for + instance a 2MB region can be specified to be mapped with 4KB page tables + instead of a 2MB block. + - Disabled the higher VA range to avoid unpredictable behaviour if there is an + attempt to access addresses in the higher VA range. + - Added helpers for Device and Normal memory MAIR encodings that align with + the Arm Architecture Reference Manual for Armv8-A (Arm DDI0487B.b). + - Code hygiene including fixing type length and signedness of constants, + refactoring of function to enable the MMU, removing all instances where the + virtual address space is hardcoded and added comments that document + alignment needed between memory attributes and attributes specified in + TCR_ELx. + +- Updated GIC support: + + - Introduce new APIs for GICv2 and GICv3 that provide the capability to + specify interrupt properties rather than list of interrupt numbers alone. + The Arm platforms and other upstream platforms are migrated to use interrupt + properties. + + - Added helpers to save / restore the GICv3 context, specifically the + Distributor and Redistributor contexts and architectural parts of the ITS + power management. The Distributor and Redistributor helpers also support the + implementation-defined part of GIC-500 and GIC-600. + + Updated the Arm FVP platform to save / restore the GICv3 context on system + suspend / resume as an example of how to use the helpers. + + Introduced a new TZC secured DDR carve-out for use by Arm platforms for + storing EL3 runtime data such as the GICv3 register context. + +- Added support for Armv7-A architecture via build option ARM_ARCH_MAJOR=7. This + includes following features: + + - Updates GICv2 driver to manage GICv1 with security extensions. + - Software implementation for 32bit division. + - Enabled use of generic timer for platforms that do not set + ARM_CORTEX_Ax=yes. + - Support for Armv7-A Virtualization extensions \[DDI0406C_C\]. + - Support for both Armv7-A platforms that only have 32-bit addressing and + Armv7-A platforms that support large page addressing. + - Included support for following Armv7 CPUs: Cortex-A12, Cortex-A17, + Cortex-A7, Cortex-A5, Cortex-A9, Cortex-A15. + - Added support in QEMU for Armv7-A/Cortex-A15. + +- Enhancements to Firmware Update feature: + + - Updated the FWU documentation to describe the additional images needed for + Firmware update, and how they are used for both the Juno platform and the + Arm FVP platforms. + +- Enhancements to Trusted Board Boot feature: + + - Added support to cert_create tool for RSA PKCS1# v1.5 and SHA384, SHA512 and + SHA256. + - For Arm platforms added support to use ECDSA keys. + - Enhanced the mbed TLS wrapper layer to include support for both RSA and + ECDSA to enable runtime selection between RSA and ECDSA keys. + +- Added support for secure interrupt handling in AArch32 sp_min, hardcoded to + only handle FIQs. + +- Added support to allow a platform to load images from multiple boot sources, + for example from a second flash drive. + +- Added a logging framework that allows platforms to reduce the logging level at + runtime and additionally the prefix string can be defined by the platform. + +- Further improvements to register initialisation: + + - Control register PMCR_EL0 / PMCR is set to prohibit cycle counting in the + secure world. This register is added to the list of registers that are saved + and restored during world switch. + - When EL3 is running in AArch32 execution state, the Non-secure version of + SCTLR is explicitly initialised during the warmboot flow rather than relying + on the hardware to set the correct reset values. + +- Enhanced support for Arm platforms: + + - Introduced driver for Shared-Data-Structure (SDS) framework which is used + for communication between SCP and the AP CPU, replacing Boot-Over_MHU (BOM) + protocol. + + The Juno platform is migrated to use SDS with the SCMI support added in v1.3 + and is set as default. + + The driver can be found in the plat/arm/css/drivers folder. + + - Improved memory usage by only mapping TSP memory region when the TSPD has + been included in the build. This reduces the memory footprint and avoids + unnecessary memory being mapped. + + - Updated support for multi-threading CPUs for FVP platforms - always check + the MT field in MPDIR and access the bit fields accordingly. + + - Support building for platforms that model DynamIQ configuration by + implementing all CPUs in a single cluster. + + - Improved nor flash driver, for instance clearing status registers before + sending commands. Driver can be found plat/arm/board/common folder. + +- Enhancements to QEMU platform: + + - Added support for TBB. + - Added support for using OP-TEE pageable image. + - Added support for LOAD_IMAGE_V2. + - Migrated to use translation table library v2 by default. + - Added support for SEPARATE_CODE_AND_RODATA. + +- Applied workarounds CVE-2017-5715 on Arm Cortex-A57, -A72, -A73 and -A75, and + for Armv7-A CPUs Cortex-A9, -A15 and -A17. + +- Applied errata workaround for Arm Cortex-A57: 859972. + +- Applied errata workaround for Arm Cortex-A72: 859971. + +- Added support for Poplar 96Board platform. + +- Added support for Raspberry Pi 3 platform. + +- Added Call Frame Information (CFI) assembler directives to the vector entries + which enables debuggers to display the backtrace of functions that triggered a + synchronous abort. + +- Added ability to build dtb. + +- Added support for pre-tool (cert_create and fiptool) image processing enabling + compression of the image files before processing by cert_create and fiptool. + + This can reduce fip size and may also speed up loading of images. The image + verification will also get faster because certificates are generated based on + compressed images. + + Imported zlib 1.2.11 to implement gunzip() for data compression. + +- Enhancements to fiptool: + + - Enabled the fiptool to be built using Visual Studio. + - Added padding bytes at the end of the last image in the fip to be facilitate + transfer by DMA. + +### Issues resolved since last release + +- TF-A can be built with optimisations disabled (-O0). +- Memory layout updated to enable Trusted Board Boot on Juno platform when + running TF-A in AArch32 execution mode (resolving [tf-issue#501]). + +### Known Issues + +- DTB creation not supported when building on a Windows host. This step in the + build process is skipped when running on a Windows host. + +## 1.4 (2017-07-07) + +### New features + +- Enabled support for platforms with hardware assisted coherency. + + A new build option HW_ASSISTED_COHERENCY allows platforms to take advantage of + the following optimisations: + + - Skip performing cache maintenance during power-up and power-down. + - Use spin-locks instead of bakery locks. + - Enable data caches early on warm-booted CPUs. + +- Added support for Cortex-A75 and Cortex-A55 processors. + + Both Cortex-A75 and Cortex-A55 processors use the Arm DynamIQ Shared Unit + (DSU). The power-down and power-up sequences are therefore mostly managed in + hardware, reducing complexity of the software operations. + +- Introduced Arm GIC-600 driver. + + Arm GIC-600 IP complies with Arm GICv3 architecture. For FVP platforms, the + GIC-600 driver is chosen when FVP_USE_GIC_DRIVER is set to FVP_GIC600. + +- Updated GICv3 support: + + - Introduced power management APIs for GICv3 Redistributor. These APIs allow + platforms to power down the Redistributor during CPU power on/off. Requires + the GICv3 implementations to have power management operations. + + Implemented the power management APIs for FVP. + + - GIC driver data is flushed by the primary CPU so that secondary CPU do not + read stale GIC data. + +- Added support for Arm System Control and Management Interface v1.0 (SCMI). + + The SCMI driver implements the power domain management and system power + management protocol of the SCMI specification (Arm DEN 0056ASCMI) for + communicating with any compliant power controller. + + Support is added for the Juno platform. The driver can be found in the + plat/arm/css/drivers folder. + +- Added support to enable pre-integration of TBB with the Arm TrustZone + CryptoCell product, to take advantage of its hardware Root of Trust and crypto + acceleration services. + +- Enabled Statistical Profiling Extensions for lower ELs. + + The firmware support is limited to the use of SPE in the Non-secure state and + accesses to the SPE specific registers from S-EL1 will trap to EL3. + + The SPE are architecturally specified for AArch64 only. + +- Code hygiene changes aligned with MISRA guidelines: + + - Fixed signed / unsigned comparison warnings in the translation table + library. + - Added U(\_x) macro and together with the existing ULL(\_x) macro fixed some + of the signed-ness defects flagged by the MISRA scanner. + +- Enhancements to Firmware Update feature: + + - The FWU logic now checks for overlapping images to prevent execution of + unauthenticated arbitrary code. + - Introduced new FWU_SMC_IMAGE_RESET SMC that changes the image loading state + machine to go from COPYING, COPIED or AUTHENTICATED states to RESET state. + Previously, this was only possible when the authentication of an image + failed or when the execution of the image finished. + - Fixed integer overflow which addressed TFV-1: Malformed Firmware Update SMC + can result in copy of unexpectedly large data into secure memory. + +- Introduced support for Arm Compiler 6 and LLVM (clang). + + TF-A can now also be built with the Arm Compiler 6 or the clang compilers. The + assembler and linker must be provided by the GNU toolchain. + + Tested with Arm CC 6.7 and clang 3.9.x and 4.0.x. + +- Memory footprint improvements: + + - Introduced `tf_snprintf`, a reduced version of `snprintf` which has support + for a limited set of formats. + + The mbedtls driver is updated to optionally use `tf_snprintf` instead of + `snprintf`. + + - The `assert()` is updated to no longer print the function name, and + additional logging options are supported via an optional platform define + `PLAT_LOG_LEVEL_ASSERT`, which controls how verbose the assert output is. + +- Enhancements to TF-A support when running in AArch32 execution state: + + - Support booting SP_MIN and BL33 in AArch32 execution mode on Juno. Due to + hardware limitations, BL1 and BL2 boot in AArch64 state and there is + additional trampoline code to warm reset into SP_MIN in AArch32 execution + state. + - Added support for Arm Cortex-A53/57/72 MPCore processors including the + errata workarounds that are already implemented for AArch64 execution state. + - For FVP platforms, added AArch32 Trusted Board Boot support, including the + Firmware Update feature. + +- Introduced Arm SiP service for use by Arm standard platforms. + + - Added new Arm SiP Service SMCs to enable the Non-secure world to read PMF + timestamps. + + Added PMF instrumentation points in TF-A in order to quantify the overall + time spent in the PSCI software implementation. + + - Added new Arm SiP service SMC to switch execution state. + + This allows the lower exception level to change its execution state from + AArch64 to AArch32, or vice verse, via a request to EL3. + +- Migrated to use SPDX\[0\] license identifiers to make software license + auditing simpler. + + \:::\{note} Files that have been imported by FreeBSD have not been modified. + \::: + + \[0\]: <https://spdx.org/> + +- Enhancements to the translation table library: + + - Added version 2 of translation table library that allows different + translation tables to be modified by using different 'contexts'. Version 1 + of the translation table library only allows the current EL's translation + tables to be modified. + + Version 2 of the translation table also added support for dynamic regions; + regions that can be added and removed dynamically whilst the MMU is enabled. + Static regions can only be added or removed before the MMU is enabled. + + The dynamic mapping functionality is enabled or disabled when compiling by + setting the build option PLAT_XLAT_TABLES_DYNAMIC to 1 or 0. This can be + done per-image. + + - Added support for translation regimes with two virtual address spaces such + as the one shared by EL1 and EL0. + + The library does not support initializing translation tables for EL0 + software. + + - Added support to mark the translation tables as non-cacheable using an + additional build option `XLAT_TABLE_NC`. + +- Added support for GCC stack protection. A new build option + ENABLE_STACK_PROTECTOR was introduced that enables compilation of all BL + images with one of the GCC -fstack-protector-\* options. + + A new platform function plat_get_stack_protector_canary() was introduced that + returns a value used to initialize the canary for stack corruption detection. + For increased effectiveness of protection platforms must provide an + implementation that returns a random value. + +- Enhanced support for Arm platforms: + + - Added support for multi-threading CPUs, indicated by `MT` field in MPDIR. A + new build flag `ARM_PLAT_MT` is added, and when enabled, the functions + accessing MPIDR assume that the `MT` bit is set for the platform and access + the bit fields accordingly. + + Also, a new API `plat_arm_get_cpu_pe_count` is added when `ARM_PLAT_MT` is + enabled, returning the Processing Element count within the physical CPU + corresponding to `mpidr`. + + - The Arm platforms migrated to use version 2 of the translation tables. + + - Introduced a new Arm platform layer API `plat_arm_psci_override_pm_ops` + which allows Arm platforms to modify `plat_arm_psci_pm_ops` and therefore + dynamically define PSCI capability. + + - The Arm platforms migrated to use IMAGE_LOAD_V2 by default. + +- Enhanced reporting of errata workaround status with the following policy: + + - If an errata workaround is enabled: + + - If it applies (i.e. the CPU is affected by the errata), an INFO message is + printed, confirming that the errata workaround has been applied. + - If it does not apply, a VERBOSE message is printed, confirming that the + errata workaround has been skipped. + + - If an errata workaround is not enabled, but would have applied had it been, + a WARN message is printed, alerting that errata workaround is missing. + +- Added build options ARM_ARCH_MAJOR and ARM_ARM_MINOR to choose the + architecture version to target TF-A. + +- Updated the spin lock implementation to use the more efficient CAS (Compare + And Swap) instruction when available. This instruction was introduced in + Armv8.1-A. + +- Applied errata workaround for Arm Cortex-A53: 855873. + +- Applied errata workaround for Arm-Cortex-A57: 813419. + +- Enabled all A53 and A57 errata workarounds for Juno, both in AArch64 and + AArch32 execution states. + +- Added support for Socionext UniPhier SoC platform. + +- Added support for Hikey960 and Hikey platforms. + +- Added support for Rockchip RK3328 platform. + +- Added support for NVidia Tegra T186 platform. + +- Added support for Designware emmc driver. + +- Imported libfdt v1.4.2 that addresses buffer overflow in fdt_offset_ptr(). + +- Enhanced the CPU operations framework to allow power handlers to be registered + on per-level basis. This enables support for future CPUs that have multiple + threads which might need powering down individually. + +- Updated register initialisation to prevent unexpected behaviour: + + - Debug registers MDCR-EL3/SDCR and MDCR_EL2/HDCR are initialised to avoid + unexpected traps into the higher exception levels and disable secure + self-hosted debug. Additionally, secure privileged external debug on Juno is + disabled by programming the appropriate Juno SoC registers. + - EL2 and EL3 configurable controls are initialised to avoid unexpected traps + in the higher exception levels. + - Essential control registers are fully initialised on EL3 start-up, when + initialising the non-secure and secure context structures and when preparing + to leave EL3 for a lower EL. This gives better alignment with the Arm ARM + which states that software must initialise RES0 and RES1 fields with 0 / 1. + +- Enhanced PSCI support: + + - Introduced new platform interfaces that decouple PSCI stat residency + calculation from PMF, enabling platforms to use alternative methods of + capturing timestamps. + - PSCI stat accounting performed for retention/standby states when requested + at multiple power levels. + +- Simplified fiptool to have a single linked list of image descriptors. + +- For the TSP, resolved corruption of pre-empted secure context by aborting any + pre-empted SMC during PSCI power management requests. + +### Issues resolved since last release + +- TF-A can be built with the latest mbed TLS version (v2.4.2). The earlier + version 2.3.0 cannot be used due to build warnings that the TF-A build system + interprets as errors. +- TBBR, including the Firmware Update feature is now supported on FVP platforms + when running TF-A in AArch32 state. +- The version of the AEMv8 Base FVP used in this release has resolved the issue + of the model executing a reset instead of terminating in response to a + shutdown request using the PSCI SYSTEM_OFF API. + +### Known Issues + +- Building TF-A with compiler optimisations disabled (-O0) fails. +- Trusted Board Boot currently does not work on Juno when running Trusted + Firmware in AArch32 execution state due to error when loading the sp_min to + memory because of lack of free space available. See [tf-issue#501] for more + details. +- The errata workaround for A53 errata 843419 is only available from binutils + 2.26 and is not present in GCC4.9. If this errata is applicable to the + platform, please use GCC compiler version of at least 5.0. See [PR#1002] for + more details. + +## 1.3 (2016-10-13) + +### New features + +- Added support for running TF-A in AArch32 execution state. + + The PSCI library has been refactored to allow integration with **EL3 Runtime + Software**. This is software that is executing at the highest secure privilege + which is EL3 in AArch64 or Secure SVC/Monitor mode in AArch32. See + \{ref}`PSCI Library Integration guide for Armv8-A AArch32 systems`. + + Included is a minimal AArch32 Secure Payload, **SP-MIN**, that illustrates the + usage and integration of the PSCI library with EL3 Runtime Software running in + AArch32 state. + + Booting to the BL1/BL2 images as well as booting straight to the Secure + Payload is supported. + +- Improvements to the initialization framework for the PSCI service and Arm + Standard Services in general. + + The PSCI service is now initialized as part of Arm Standard Service + initialization. This consolidates the initializations of any Arm Standard + Service that may be added in the future. + + A new function `get_arm_std_svc_args()` is introduced to get arguments + corresponding to each standard service and must be implemented by the EL3 + Runtime Software. + + For PSCI, a new versioned structure `psci_lib_args_t` is introduced to + initialize the PSCI Library. **Note** this is a compatibility break due to the + change in the prototype of `psci_setup()`. + +- To support AArch32 builds of BL1 and BL2, implemented a new, alternative + firmware image loading mechanism that adds flexibility. + + The current mechanism has a hard-coded set of images and execution order + (BL31, BL32, etc). The new mechanism is data-driven by a list of image + descriptors provided by the platform code. + + Arm platforms have been updated to support the new loading mechanism. + + The new mechanism is enabled by a build flag (`LOAD_IMAGE_V2`) which is + currently off by default for the AArch64 build. + + **Note** `TRUSTED_BOARD_BOOT` is currently not supported when `LOAD_IMAGE_V2` + is enabled. + +- Updated requirements for making contributions to TF-A. + + Commits now must have a 'Signed-off-by:' field to certify that the + contribution has been made under the terms of the + {download}`Developer Certificate of Origin <../dco.txt>`. + + A signed CLA is no longer required. + + The {ref}`Contributor's Guide` has been updated to reflect this change. + +- Introduced Performance Measurement Framework (PMF) which provides support for + capturing, storing, dumping and retrieving time-stamps to measure the + execution time of critical paths in the firmware. This relies on defining + fixed sample points at key places in the code. + +- To support the QEMU platform port, imported libfdt v1.4.1 from + <https://git.kernel.org/pub/scm/utils/dtc/dtc.git> + +- Updated PSCI support: + + - Added support for PSCI NODE_HW_STATE API for Arm platforms. + - New optional platform hook, `pwr_domain_pwr_down_wfi()`, in `plat_psci_ops` + to enable platforms to perform platform-specific actions needed to enter + powerdown, including the 'wfi' invocation. + - PSCI STAT residency and count functions have been added on Arm platforms by + using PMF. + +- Enhancements to the translation table library: + + - Limited memory mapping support for region overlaps to only allow regions to + overlap that are identity mapped or have the same virtual to physical + address offset, and overlap completely but must not cover the same area. + + This limitation will enable future enhancements without having to support + complex edge cases that may not be necessary. + + - The initial translation lookup level is now inferred from the virtual + address space size. Previously, it was hard-coded. + + - Added support for mapping Normal, Inner Non-cacheable, Outer Non-cacheable + memory in the translation table library. + + This can be useful to map a non-cacheable memory region, such as a DMA + buffer. + + - Introduced the MT_EXECUTE/MT_EXECUTE_NEVER memory mapping attributes to + specify the access permissions for instruction execution of a memory region. + +- Enabled support to isolate code and read-only data on separate memory pages, + allowing independent access control to be applied to each. + +- Enabled SCR_EL3.SIF (Secure Instruction Fetch) bit in BL1 and BL31 common + architectural setup code, preventing fetching instructions from non-secure + memory when in secure state. + +- Enhancements to FIP support: + + - Replaced `fip_create` with `fiptool` which provides a more consistent and + intuitive interface as well as additional support to remove an image from a + FIP file. + - Enabled printing the SHA256 digest with info command, allowing quick + verification of an image within a FIP without having to extract the image + and running sha256sum on it. + - Added support for unpacking the contents of an existing FIP file into the + working directory. + - Aligned command line options for specifying images to use same naming + convention as specified by TBBR and already used in cert_create tool. + +- Refactored the TZC-400 driver to also support memory controllers that + integrate TZC functionality, for example Arm CoreLink DMC-500. Also added + DMC-500 specific support. + +- Implemented generic delay timer based on the system generic counter and + migrated all platforms to use it. + +- Enhanced support for Arm platforms: + + - Updated image loading support to make SCP images (SCP_BL2 and SCP_BL2U) + optional. + - Enhanced topology description support to allow multi-cluster topology + definitions. + - Added interconnect abstraction layer to help platform ports select the right + interconnect driver, CCI or CCN, for the platform. + - Added support to allow loading BL31 in the TZC-secured DRAM instead of the + default secure SRAM. + - Added support to use a System Security Control (SSC) Registers Unit enabling + TF-A to be compiled to support multiple Arm platforms and then select one at + runtime. + - Restricted mapping of Trusted ROM in BL1 to what is actually needed by BL1 + rather than entire Trusted ROM region. + - Flash is now mapped as execute-never by default. This increases security by + restricting the executable region to what is strictly needed. + +- Applied following erratum workarounds for Cortex-A57: 833471, 826977, 829520, + 828024 and 826974. + +- Added support for Mediatek MT6795 platform. + +- Added support for QEMU virtualization Armv8-A target. + +- Added support for Rockchip RK3368 and RK3399 platforms. + +- Added support for Xilinx Zynq UltraScale+ MPSoC platform. + +- Added support for Arm Cortex-A73 MPCore Processor. + +- Added support for Arm Cortex-A72 processor. + +- Added support for Arm Cortex-A35 processor. + +- Added support for Arm Cortex-A32 MPCore Processor. + +- Enabled preloaded BL33 alternative boot flow, in which BL2 does not load BL33 + from non-volatile storage and BL31 hands execution over to a preloaded BL33. + The User Guide has been updated with an example of how to use this option with + a bootwrapped kernel. + +- Added support to build TF-A on a Windows-based host machine. + +- Updated Trusted Board Boot prototype implementation: + + - Enabled the ability for a production ROM with TBBR enabled to boot test + software before a real ROTPK is deployed (e.g. manufacturing mode). Added + support to use ROTPK in certificate without verifying against the platform + value when `ROTPK_NOT_DEPLOYED` bit is set. + - Added support for non-volatile counter authentication to the Authentication + Module to protect against roll-back. + +- Updated GICv3 support: + + - Enabled processor power-down and automatic power-on using GICv3. + - Enabled G1S or G0 interrupts to be configured independently. + - Changed FVP default interrupt driver to be the GICv3-only driver. **Note** + the default build of TF-A will not be able to boot Linux kernel with GICv2 + FDT blob. + - Enabled wake-up from CPU_SUSPEND to stand-by by temporarily re-routing + interrupts and then restoring after resume. + +### Issues resolved since last release + +### Known issues + +- The version of the AEMv8 Base FVP used in this release resets the model + instead of terminating its execution in response to a shutdown request using + the PSCI `SYSTEM_OFF` API. This issue will be fixed in a future version of the + model. +- Building TF-A with compiler optimisations disabled (`-O0`) fails. +- TF-A cannot be built with mbed TLS version v2.3.0 due to build warnings that + the TF-A build system interprets as errors. +- TBBR is not currently supported when running TF-A in AArch32 state. + +## 1.2 (2015-12-22) + +### New features + +- The Trusted Board Boot implementation on Arm platforms now conforms to the + mandatory requirements of the TBBR specification. + + In particular, the boot process is now guarded by a Trusted Watchdog, which + will reset the system in case of an authentication or loading error. On Arm + platforms, a secure instance of Arm SP805 is used as the Trusted Watchdog. + + Also, a firmware update process has been implemented. It enables authenticated + firmware to update firmware images from external interfaces to SoC + Non-Volatile memories. This feature functions even when the current firmware + in the system is corrupt or missing; it therefore may be used as a recovery + mode. + +- Improvements have been made to the Certificate Generation Tool (`cert_create`) + as follows. + + - Added support for the Firmware Update process by extending the Chain of + Trust definition in the tool to include the Firmware Update certificate and + the required extensions. + - Introduced a new API that allows one to specify command line options in the + Chain of Trust description. This makes the declaration of the tool's + arguments more flexible and easier to extend. + - The tool has been reworked to follow a data driven approach, which makes it + easier to maintain and extend. + +- Extended the FIP tool (`fip_create`) to support the new set of images involved + in the Firmware Update process. + +- Various memory footprint improvements. In particular: + + - The bakery lock structure for coherent memory has been optimised. + - The mbed TLS SHA1 functions are not needed, as SHA256 is used to generate + the certificate signature. Therefore, they have been compiled out, reducing + the memory footprint of BL1 and BL2 by approximately 6 KB. + - On Arm development platforms, each BL stage now individually defines the + number of regions that it needs to map in the MMU. + +- Added the following new design documents: + + - {ref}`Authentication Framework & Chain of Trust` + - {ref}`Firmware Update (FWU)` + - {ref}`CPU Reset` + - {ref}`PSCI Power Domain Tree Structure` + +- Applied the new image terminology to the code base and documentation, as + described in the {ref}`Image Terminology` document. + +- The build system has been reworked to improve readability and facilitate + adding future extensions. + +- On Arm standard platforms, BL31 uses the boot console during cold boot but + switches to the runtime console for any later logs at runtime. The TSP uses + the runtime console for all output. + +- Implemented a basic NOR flash driver for Arm platforms. It programs the device + using CFI (Common Flash Interface) standard commands. + +- Implemented support for booting EL3 payloads on Arm platforms, which reduces + the complexity of developing EL3 baremetal code by doing essential baremetal + initialization. + +- Provided separate drivers for GICv3 and GICv2. These expect the entire + software stack to use either GICv2 or GICv3; hybrid GIC software systems are + no longer supported and the legacy Arm GIC driver has been deprecated. + +- Added support for Juno r1 and r2. A single set of Juno TF-A binaries can run + on Juno r0, r1 and r2 boards. Note that this TF-A version depends on a Linaro + release that does *not* contain Juno r2 support. + +- Added support for MediaTek mt8173 platform. + +- Implemented a generic driver for Arm CCN IP. + +- Major rework of the PSCI implementation. + + - Added framework to handle composite power states. + - Decoupled the notions of affinity instances (which describes the + hierarchical arrangement of cores) and of power domain topology, instead of + assuming a one-to-one mapping. + - Better alignment with version 1.0 of the PSCI specification. + +- Added support for the SYSTEM_SUSPEND PSCI API on Arm platforms. When invoked + on the last running core on a supported platform, this puts the system into a + low power mode with memory retention. + +- Unified the reset handling code as much as possible across BL stages. Also + introduced some build options to enable optimization of the reset path on + platforms that support it. + +- Added a simple delay timer API, as well as an SP804 timer driver, which is + enabled on FVP. + +- Added support for NVidia Tegra T210 and T132 SoCs. + +- Reorganised Arm platforms ports to greatly improve code shareability and + facilitate the reuse of some of this code by other platforms. + +- Added support for Arm Cortex-A72 processor in the CPU specific framework. + +- Provided better error handling. Platform ports can now define their own error + handling, for example to perform platform specific bookkeeping or post-error + actions. + +- Implemented a unified driver for Arm Cache Coherent Interconnects used for + both CCI-400 & CCI-500 IPs. Arm platforms ports have been migrated to this + common driver. The standalone CCI-400 driver has been deprecated. + +### Issues resolved since last release + +- The Trusted Board Boot implementation has been redesigned to provide greater + modularity and scalability. See the + \{ref}`Authentication Framework & Chain of Trust` document. All missing + mandatory features are now implemented. +- The FVP and Juno ports may now use the hash of the ROTPK stored in the Trusted + Key Storage registers to verify the ROTPK. Alternatively, a development public + key hash embedded in the BL1 and BL2 binaries might be used instead. The + location of the ROTPK is chosen at build-time using the `ARM_ROTPK_LOCATION` + build option. +- GICv3 is now fully supported and stable. + +### Known issues + +- The version of the AEMv8 Base FVP used in this release resets the model + instead of terminating its execution in response to a shutdown request using + the PSCI `SYSTEM_OFF` API. This issue will be fixed in a future version of the + model. +- While this version has low on-chip RAM requirements, there are further RAM + usage enhancements that could be made. +- The upstream documentation could be improved for structural consistency, + clarity and completeness. In particular, the design documentation is + incomplete for PSCI, the TSP(D) and the Juno platform. +- Building TF-A with compiler optimisations disabled (`-O0`) fails. + +## 1.1 (2015-02-04) + +### New features + +- A prototype implementation of Trusted Board Boot has been added. Boot loader + images are verified by BL1 and BL2 during the cold boot path. BL1 and BL2 use + the PolarSSL SSL library to verify certificates and images. The OpenSSL + library is used to create the X.509 certificates. Support has been added to + `fip_create` tool to package the certificates in a FIP. + +- Support for calling CPU and platform specific reset handlers upon entry into + BL3-1 during the cold and warm boot paths has been added. This happens after + another Boot ROM `reset_handler()` has already run. This enables a developer + to perform additional actions or undo actions already performed during the + first call of the reset handlers e.g. apply additional errata workarounds. + +- Support has been added to demonstrate routing of IRQs to EL3 instead of S-EL1 + when execution is in secure world. + +- The PSCI implementation now conforms to version 1.0 of the PSCI specification. + All the mandatory APIs and selected optional APIs are supported. In + particular, support for the `PSCI_FEATURES` API has been added. A capability + variable is constructed during initialization by examining the `plat_pm_ops` + and `spd_pm_ops` exported by the platform and the Secure Payload Dispatcher. + This is used by the PSCI FEATURES function to determine which PSCI APIs are + supported by the platform. + +- Improvements have been made to the PSCI code as follows. + + - The code has been refactored to remove redundant parameters from internal + functions. + - Changes have been made to the code for PSCI `CPU_SUSPEND`, `CPU_ON` and + `CPU_OFF` calls to facilitate an early return to the caller in case a + failure condition is detected. For example, a PSCI `CPU_SUSPEND` call + returns `SUCCESS` to the caller if a pending interrupt is detected early in + the code path. + - Optional platform APIs have been added to validate the `power_state` and + `entrypoint` parameters early in PSCI `CPU_ON` and `CPU_SUSPEND` code paths. + - PSCI migrate APIs have been reworked to invoke the SPD hook to determine the + type of Trusted OS and the CPU it is resident on (if applicable). Also, + during a PSCI `MIGRATE` call, the SPD hook to migrate the Trusted OS is + invoked. + +- It is now possible to build TF-A without marking at least an extra page of + memory as coherent. The build flag `USE_COHERENT_MEM` can be used to choose + between the two implementations. This has been made possible through these + changes. + + - An implementation of Bakery locks, where the locks are not allocated in + coherent memory has been added. + - Memory which was previously marked as coherent is now kept coherent through + the use of software cache maintenance operations. + + Approximately, 4K worth of memory is saved for each boot loader stage when + `USE_COHERENT_MEM=0`. Enabling this option increases the latencies associated + with acquire and release of locks. It also requires changes to the platform + ports. + +- It is now possible to specify the name of the FIP at build time by defining + the `FIP_NAME` variable. + +- Issues with dependencies on the 'fiptool' makefile target have been rectified. + The `fip_create` tool is now rebuilt whenever its source files change. + +- The BL3-1 runtime console is now also used as the crash console. The crash + console is changed to SoC UART0 (UART2) from the previous FPGA UART0 (UART0) + on Juno. In FVP, it is changed from UART0 to UART1. + +- CPU errata workarounds are applied only when the revision and part number + match. This behaviour has been made consistent across the debug and release + builds. The debug build additionally prints a warning if a mismatch is + detected. + +- It is now possible to issue cache maintenance operations by set/way for a + particular level of data cache. Levels 1-3 are currently supported. + +- The following improvements have been made to the FVP port. + + - The build option `FVP_SHARED_DATA_LOCATION` which allowed relocation of + shared data into the Trusted DRAM has been deprecated. Shared data is now + always located at the base of Trusted SRAM. + - BL2 Translation tables have been updated to map only the region of DRAM + which is accessible to normal world. This is the region of the 2GB DDR-DRAM + memory at 0x80000000 excluding the top 16MB. The top 16MB is accessible to + only the secure world. + - BL3-2 can now reside in the top 16MB of DRAM which is accessible only to the + secure world. This can be done by setting the build flag + `FVP_TSP_RAM_LOCATION` to the value `dram`. + +- Separate translation tables are created for each boot loader image. The + `IMAGE_BLx` build options are used to do this. This allows each stage to + create mappings only for areas in the memory map that it needs. + +- A Secure Payload Dispatcher (OPTEED) for the OP-TEE Trusted OS has been added. + Details of using it with TF-A can be found in {ref}`OP-TEE Dispatcher` + +### Issues resolved since last release + +- The Juno port has been aligned with the FVP port as follows. + + - Support for reclaiming all BL1 RW memory and BL2 memory by overlaying the + BL3-1/BL3-2 NOBITS sections on top of them has been added to the Juno port. + - The top 16MB of the 2GB DDR-DRAM memory at 0x80000000 is configured using + the TZC-400 controller to be accessible only to the secure world. + - The Arm GIC driver is used to configure the GIC-400 instead of using a GIC + driver private to the Juno port. + - PSCI `CPU_SUSPEND` calls that target a standby state are now supported. + - The TZC-400 driver is used to configure the controller instead of direct + accesses to the registers. + +- The Linux kernel version referred to in the user guide has DVFS and HMP + support enabled. + +- DS-5 v5.19 did not detect Version 5.8 of the Cortex-A57-A53 Base FVPs in CADI + server mode. This issue is not seen with DS-5 v5.20 and Version 6.2 of the + Cortex-A57-A53 Base FVPs. + +### Known issues + +- The Trusted Board Boot implementation is a prototype. There are issues with + the modularity and scalability of the design. Support for a Trusted Watchdog, + firmware update mechanism, recovery images and Trusted debug is absent. These + issues will be addressed in future releases. +- The FVP and Juno ports do not use the hash of the ROTPK stored in the Trusted + Key Storage registers to verify the ROTPK in the `plat_match_rotpk()` + function. This prevents the correct establishment of the Chain of Trust at the + first step in the Trusted Board Boot process. +- The version of the AEMv8 Base FVP used in this release resets the model + instead of terminating its execution in response to a shutdown request using + the PSCI `SYSTEM_OFF` API. This issue will be fixed in a future version of the + model. +- GICv3 support is experimental. There are known issues with GICv3 + initialization in the TF-A. +- While this version greatly reduces the on-chip RAM requirements, there are + further RAM usage enhancements that could be made. +- The firmware design documentation for the Test Secure-EL1 Payload (TSP) and + its dispatcher (TSPD) is incomplete. Similarly for the PSCI section. +- The Juno-specific firmware design documentation is incomplete. + +## 1.0 (2014-08-28) + +### New features + +- It is now possible to map higher physical addresses using non-flat virtual to + physical address mappings in the MMU setup. + +- Wider use is now made of the per-CPU data cache in BL3-1 to store: + + - Pointers to the non-secure and secure security state contexts. + - A pointer to the CPU-specific operations. + - A pointer to PSCI specific information (for example the current power + state). + - A crash reporting buffer. + +- The following RAM usage improvements result in a BL3-1 RAM usage reduction + from 96KB to 56KB (for FVP with TSPD), and a total RAM usage reduction across + all images from 208KB to 88KB, compared to the previous release. + + - Removed the separate `early_exception` vectors from BL3-1 (2KB code size + saving). + - Removed NSRAM from the FVP memory map, allowing the removal of one (4KB) + translation table. + - Eliminated the internal `psci_suspend_context` array, saving 2KB. + - Correctly dimensioned the PSCI `aff_map_node` array, saving 1.5KB in the FVP + port. + - Removed calling CPU mpidr from the bakery lock API, saving 160 bytes. + - Removed current CPU mpidr from PSCI common code, saving 160 bytes. + - Inlined the mmio accessor functions, saving 360 bytes. + - Fully reclaimed all BL1 RW memory and BL2 memory on the FVP port by + overlaying the BL3-1/BL3-2 NOBITS sections on top of these at runtime. + - Made storing the FP register context optional, saving 0.5KB per context (8KB + on the FVP port, with TSPD enabled and running on 8 CPUs). + - Implemented a leaner `tf_printf()` function, allowing the stack to be + greatly reduced. + - Removed coherent stacks from the codebase. Stacks allocated in normal memory + are now used before and after the MMU is enabled. This saves 768 bytes per + CPU in BL3-1. + - Reworked the crash reporting in BL3-1 to use less stack. + - Optimized the EL3 register state stored in the `cpu_context` structure so + that registers that do not change during normal execution are re-initialized + each time during cold/warm boot, rather than restored from memory. This + saves about 1.2KB. + - As a result of some of the above, reduced the runtime stack size in all BL + images. For BL3-1, this saves 1KB per CPU. + +- PSCI SMC handler improvements to correctly handle calls from secure states and + from AArch32. + +- CPU contexts are now initialized from the `entry_point_info`. BL3-1 fully + determines the exception level to use for the non-trusted firmware (BL3-3) + based on the SPSR value provided by the BL2 platform code (or otherwise + provided to BL3-1). This allows platform code to directly run non-trusted + firmware payloads at either EL2 or EL1 without requiring an EL2 stub or OS + loader. + +- Code refactoring improvements: + + - Refactored `fvp_config` into a common platform header. + - Refactored the fvp gic code to be a generic driver that no longer has an + explicit dependency on platform code. + - Refactored the CCI-400 driver to not have dependency on platform code. + - Simplified the IO driver so it's no longer necessary to call `io_init()` and + moved all the IO storage framework code to one place. + - Simplified the interface the the TZC-400 driver. + - Clarified the platform porting interface to the TSP. + - Reworked the TSPD setup code to support the alternate BL3-2 initialization + flow where BL3-1 generic code hands control to BL3-2, rather than expecting + the TSPD to hand control directly to BL3-2. + - Considerable rework to PSCI generic code to support CPU specific operations. + +- Improved console log output, by: + + - Adding the concept of debug log levels. + - Rationalizing the existing debug messages and adding new ones. + - Printing out the version of each BL stage at runtime. + - Adding support for printing console output from assembler code, including + when a crash occurs before the C runtime is initialized. + +- Moved up to the latest versions of the FVPs, toolchain, EDK2, kernel, Linaro + file system and DS-5. + +- On the FVP port, made the use of the Trusted DRAM region optional at build + time (off by default). Normal platforms will not have such a "ready-to-use" + DRAM area so it is not a good example to use it. + +- Added support for PSCI `SYSTEM_OFF` and `SYSTEM_RESET` APIs. + +- Added support for CPU specific reset sequences, power down sequences and + register dumping during crash reporting. The CPU specific reset sequences + include support for errata workarounds. + +- Merged the Juno port into the master branch. Added support for CPU hotplug and + CPU idle. Updated the user guide to describe how to build and run on the Juno + platform. + +### Issues resolved since last release + +- Removed the concept of top/bottom image loading. The image loader now + automatically detects the position of the image inside the current memory + layout and updates the layout to minimize fragmentation. This resolves the + image loader limitations of previously releases. There are currently no plans + to support dynamic image loading. +- CPU idle now works on the publicized version of the Foundation FVP. +- All known issues relating to the compiler version used have now been resolved. + This TF-A version uses Linaro toolchain 14.07 (based on GCC 4.9). + +### Known issues + +- GICv3 support is experimental. The Linux kernel patches to support this are + not widely available. There are known issues with GICv3 initialization in the + TF-A. + +- While this version greatly reduces the on-chip RAM requirements, there are + further RAM usage enhancements that could be made. + +- The firmware design documentation for the Test Secure-EL1 Payload (TSP) and + its dispatcher (TSPD) is incomplete. Similarly for the PSCI section. + +- The Juno-specific firmware design documentation is incomplete. + +- Some recent enhancements to the FVP port have not yet been translated into the + Juno port. These will be tracked via the tf-issues project. + +- The Linux kernel version referred to in the user guide has DVFS and HMP + support disabled due to some known instabilities at the time of this release. + A future kernel version will re-enable these features. + +- DS-5 v5.19 does not detect Version 5.8 of the Cortex-A57-A53 Base FVPs in CADI + server mode. This is because the `<SimName>` reported by the FVP in this + version has changed. For example, for the Cortex-A57x4-A53x4 Base FVP, the + `<SimName>` reported by the FVP is `FVP_Base_Cortex_A57x4_A53x4`, while DS-5 + expects it to be `FVP_Base_A57x4_A53x4`. + + The temporary fix to this problem is to change the name of the FVP in + `sw/debugger/configdb/Boards/ARM FVP/Base_A57x4_A53x4/cadi_config.xml`. Change + the following line: + + ``` + <SimName>System Generator:FVP_Base_A57x4_A53x4</SimName> + ``` + + to System Generator:FVP_Base_Cortex-A57x4_A53x4 + + A similar change can be made to the other Cortex-A57-A53 Base FVP variants. + +## 0.4 (2014-06-03) + +### New features + +- Makefile improvements: + + - Improved dependency checking when building. + - Removed `dump` target (build now always produces dump files). + - Enabled platform ports to optionally make use of parts of the Trusted + Firmware (e.g. BL3-1 only), rather than being forced to use all parts. Also + made the `fip` target optional. + - Specified the full path to source files and removed use of the `vpath` + keyword. + +- Provided translation table library code for potential re-use by platforms + other than the FVPs. + +- Moved architectural timer setup to platform-specific code. + +- Added standby state support to PSCI cpu_suspend implementation. + +- SRAM usage improvements: + + - Started using the `-ffunction-sections`, `-fdata-sections` and + `--gc-sections` compiler/linker options to remove unused code and data from + the images. Previously, all common functions were being built into all + binary images, whether or not they were actually used. + - Placed all assembler functions in their own section to allow more unused + functions to be removed from images. + - Updated BL1 and BL2 to use a single coherent stack each, rather than one per + CPU. + - Changed variables that were unnecessarily declared and initialized as + non-const (i.e. in the .data section) so they are either uninitialized (zero + init) or const. + +- Moved the Test Secure-EL1 Payload (BL3-2) to execute in Trusted SRAM by + default. The option for it to run in Trusted DRAM remains. + +- Implemented a TrustZone Address Space Controller (TZC-400) driver. A default + configuration is provided for the Base FVPs. This means the model parameter + `-C bp.secure_memory=1` is now supported. + +- Started saving the PSCI cpu_suspend 'power_state' parameter prior to + suspending a CPU. This allows platforms that implement multiple power-down + states at the same affinity level to identify a specific state. + +- Refactored the entire codebase to reduce the amount of nesting in header files + and to make the use of system/user includes more consistent. Also split + platform.h to separate out the platform porting declarations from the required + platform porting definitions and the definitions/declarations specific to the + platform port. + +- Optimized the data cache clean/invalidate operations. + +- Improved the BL3-1 unhandled exception handling and reporting. Unhandled + exceptions now result in a dump of registers to the console. + +- Major rework to the handover interface between BL stages, in particular the + interface to BL3-1. The interface now conforms to a specification and is more + future proof. + +- Added support for optionally making the BL3-1 entrypoint a reset handler + (instead of BL1). This allows platforms with an alternative image loading + architecture to re-use BL3-1 with fewer modifications to generic code. + +- Reserved some DDR DRAM for secure use on FVP platforms to avoid future + compatibility problems with non-secure software. + +- Added support for secure interrupts targeting the Secure-EL1 Payload (SP) + (using GICv2 routing only). Demonstrated this working by adding an interrupt + target and supporting test code to the TSP. Also demonstrated non-secure + interrupt handling during TSP processing. + +### Issues resolved since last release + +- Now support use of the model parameter `-C bp.secure_memory=1` in the Base + FVPs (see **New features**). +- Support for secure world interrupt handling now available (see **New + features**). +- Made enough SRAM savings (see **New features**) to enable the Test Secure-EL1 + Payload (BL3-2) to execute in Trusted SRAM by default. +- The tested filesystem used for this release (Linaro AArch64 OpenEmbedded + 14.04) now correctly reports progress in the console. +- Improved the Makefile structure to make it easier to separate out parts of the + TF-A for re-use in platform ports. Also, improved target dependency checking. + +### Known issues + +- GICv3 support is experimental. The Linux kernel patches to support this are + not widely available. There are known issues with GICv3 initialization in the + TF-A. +- Dynamic image loading is not available yet. The current image loader + implementation (used to load BL2 and all subsequent images) has some + limitations. Changing BL2 or BL3-1 load addresses in certain ways can lead to + loading errors, even if the images should theoretically fit in memory. +- TF-A still uses too much on-chip Trusted SRAM. A number of RAM usage + enhancements have been identified to rectify this situation. +- CPU idle does not work on the advertised version of the Foundation FVP. Some + FVP fixes are required that are not available externally at the time of + writing. This can be worked around by disabling CPU idle in the Linux kernel. +- Various bugs in TF-A, UEFI and the Linux kernel have been observed when using + Linaro toolchain versions later than 13.11. Although most of these have been + fixed, some remain at the time of writing. These mainly seem to relate to a + subtle change in the way the compiler converts between 64-bit and 32-bit + values (e.g. during casting operations), which reveals previously hidden bugs + in client code. +- The firmware design documentation for the Test Secure-EL1 Payload (TSP) and + its dispatcher (TSPD) is incomplete. Similarly for the PSCI section. + +## 0.3 (2014-02-28) + +### New features + +- Support for Foundation FVP Version 2.0 added. The documented UEFI + configuration disables some devices that are unavailable in the Foundation + FVP, including MMC and CLCD. The resultant UEFI binary can be used on the + AEMv8 and Cortex-A57-A53 Base FVPs, as well as the Foundation FVP. + + \:::\{note} The software will not work on Version 1.0 of the Foundation FVP. + \::: + +- Enabled third party contributions. Added a new contributing.md containing + instructions for how to contribute and updated copyright text in all files to + acknowledge contributors. + +- The PSCI CPU_SUSPEND API has been stabilised to the extent where it can be + used for entry into power down states with the following restrictions: + + - Entry into standby states is not supported. + - The API is only supported on the AEMv8 and Cortex-A57-A53 Base FVPs. + +- The PSCI AFFINITY_INFO api has undergone limited testing on the Base FVPs to + allow experimental use. + +- Required C library and runtime header files are now included locally in TF-A + instead of depending on the toolchain standard include paths. The local + implementation has been cleaned up and reduced in scope. + +- Added I/O abstraction framework, primarily to allow generic code to load + images in a platform-independent way. The existing image loading code has been + reworked to use the new framework. Semi-hosting and NOR flash I/O drivers are + provided. + +- Introduced Firmware Image Package (FIP) handling code and tools. A FIP + combines multiple firmware images with a Table of Contents (ToC) into a single + binary image. The new FIP driver is another type of I/O driver. The Makefile + builds a FIP by default and the FVP platform code expect to load a FIP from + NOR flash, although some support for image loading using semi- hosting is + retained. + + \:::\{note} Building a FIP by default is a non-backwards-compatible change. ::: + + \:::\{note} Generic BL2 code now loads a BL3-3 (non-trusted firmware) image + into DRAM instead of expecting this to be pre-loaded at known location. This + is also a non-backwards-compatible change. ::: + + \:::\{note} Some non-trusted firmware (e.g. UEFI) will need to be rebuilt so + that it knows the new location to execute from and no longer needs to copy + particular code modules to DRAM itself. ::: + +- Reworked BL2 to BL3-1 handover interface. A new composite structure + (bl31_args) holds the superset of information that needs to be passed from BL2 + to BL3-1, including information on how handover execution control to BL3-2 (if + present) and BL3-3 (non-trusted firmware). + +- Added library support for CPU context management, allowing the saving and + restoring of + + - Shared system registers between Secure-EL1 and EL1. + - VFP registers. + - Essential EL3 system registers. + +- Added a framework for implementing EL3 runtime services. Reworked the PSCI + implementation to be one such runtime service. + +- Reworked the exception handling logic, making use of both SP_EL0 and SP_EL3 + stack pointers for determining the type of exception, managing general purpose + and system register context on exception entry/exit, and handling SMCs. SMCs + are directed to the correct EL3 runtime service. + +- Added support for a Test Secure-EL1 Payload (TSP) and a corresponding + Dispatcher (TSPD), which is loaded as an EL3 runtime service. The TSPD + implements Secure Monitor functionality such as world switching and EL1 + context management, and is responsible for communication with the TSP. + + \:::\{note} The TSPD does not yet contain support for secure world interrupts. + \::: + + \:::\{note} The TSP/TSPD is not built by default. ::: + +### Issues resolved since last release + +- Support has been added for switching context between secure and normal worlds + in EL3. +- PSCI API calls `AFFINITY_INFO` & `PSCI_VERSION` have now been tested (to a + limited extent). +- The TF-A build artifacts are now placed in the `./build` directory and + sub-directories instead of being placed in the root of the project. +- TF-A is now free from build warnings. Build warnings are now treated as + errors. +- TF-A now provides C library support locally within the project to maintain + compatibility between toolchains/systems. +- The PSCI locking code has been reworked so it no longer takes locks in an + incorrect sequence. +- The RAM-disk method of loading a Linux file-system has been confirmed to work + with the TF-A and Linux kernel version (based on version 3.13) used in this + release, for both Foundation and Base FVPs. + +### Known issues + +The following is a list of issues which are expected to be fixed in the future +releases of TF-A. + +- The TrustZone Address Space Controller (TZC-400) is not being programmed yet. + Use of model parameter `-C bp.secure_memory=1` is not supported. +- No support yet for secure world interrupt handling. +- GICv3 support is experimental. The Linux kernel patches to support this are + not widely available. There are known issues with GICv3 initialization in + TF-A. +- Dynamic image loading is not available yet. The current image loader + implementation (used to load BL2 and all subsequent images) has some + limitations. Changing BL2 or BL3-1 load addresses in certain ways can lead to + loading errors, even if the images should theoretically fit in memory. +- TF-A uses too much on-chip Trusted SRAM. Currently the Test Secure-EL1 Payload + (BL3-2) executes in Trusted DRAM since there is not enough SRAM. A number of + RAM usage enhancements have been identified to rectify this situation. +- CPU idle does not work on the advertised version of the Foundation FVP. Some + FVP fixes are required that are not available externally at the time of + writing. +- Various bugs in TF-A, UEFI and the Linux kernel have been observed when using + Linaro toolchain versions later than 13.11. Although most of these have been + fixed, some remain at the time of writing. These mainly seem to relate to a + subtle change in the way the compiler converts between 64-bit and 32-bit + values (e.g. during casting operations), which reveals previously hidden bugs + in client code. +- The tested filesystem used for this release (Linaro AArch64 OpenEmbedded + 14.01) does not report progress correctly in the console. It only seems to + produce error output, not standard output. It otherwise appears to function + correctly. Other filesystem versions on the same software stack do not exhibit + the problem. +- The Makefile structure doesn't make it easy to separate out parts of the TF-A + for re-use in platform ports, for example if only BL3-1 is required in a + platform port. Also, dependency checking in the Makefile is flawed. +- The firmware design documentation for the Test Secure-EL1 Payload (TSP) and + its dispatcher (TSPD) is incomplete. Similarly for the PSCI section. + +## 0.2 (2013-10-25) + +### New features + +- First source release. +- Code for the PSCI suspend feature is supplied, although this is not enabled by + default since there are known issues (see below). + +### Issues resolved since last release + +- The "psci" nodes in the FDTs provided in this release now fully comply with + the recommendations made in the PSCI specification. + +### Known issues + +The following is a list of issues which are expected to be fixed in the future +releases of TF-A. + +- The TrustZone Address Space Controller (TZC-400) is not being programmed yet. + Use of model parameter `-C bp.secure_memory=1` is not supported. +- No support yet for secure world interrupt handling or for switching context + between secure and normal worlds in EL3. +- GICv3 support is experimental. The Linux kernel patches to support this are + not widely available. There are known issues with GICv3 initialization in + TF-A. +- Dynamic image loading is not available yet. The current image loader + implementation (used to load BL2 and all subsequent images) has some + limitations. Changing BL2 or BL3-1 load addresses in certain ways can lead to + loading errors, even if the images should theoretically fit in memory. +- Although support for PSCI `CPU_SUSPEND` is present, it is not yet stable and + ready for use. +- PSCI API calls `AFFINITY_INFO` & `PSCI_VERSION` are implemented but have not + been tested. +- The TF-A make files result in all build artifacts being placed in the root of + the project. These should be placed in appropriate sub-directories. +- The compilation of TF-A is not free from compilation warnings. Some of these + warnings have not been investigated yet so they could mask real bugs. +- TF-A currently uses toolchain/system include files like stdio.h. It should + provide versions of these within the project to maintain compatibility between + toolchains/systems. +- The PSCI code takes some locks in an incorrect sequence. This may cause + problems with suspend and hotplug in certain conditions. +- The Linux kernel used in this release is based on version 3.12-rc4. Using this + kernel with the TF-A fails to start the file-system as a RAM-disk. It fails to + execute user-space `init` from the RAM-disk. As an alternative, the + VirtioBlock mechanism can be used to provide a file-system to the kernel. + +______________________________________________________________________ + +*Copyright (c) 2013-2020, Arm Limited and Contributors. All rights reserved.* + +[mbed tls releases]: https://tls.mbed.org/tech-updates/releases +[pr#1002]: https://github.com/ARM-software/arm-trusted-firmware/pull/1002#issuecomment-312650193 +[sdei specification]: http://infocenter.arm.com/help/topic/com.arm.doc.den0054a/ARM_DEN0054A_Software_Delegated_Exception_Interface.pdf +[tf-issue#501]: https://github.com/ARM-software/tf-issues/issues/501 diff --git a/docs/change-log.rst b/docs/change-log.rst deleted file mode 100644 index 9c475689a..000000000 --- a/docs/change-log.rst +++ /dev/null @@ -1,4602 +0,0 @@ -Change Log & Release Notes -========================== - -This document contains a summary of the new features, changes, fixes and known -issues in each release of Trusted Firmware-A. - -Version 2.5 ------------ - -New Features -^^^^^^^^^^^^ - -- Architecture support - - Added support for speculation barrier(``FEAT_SB``) for non-Armv8.5 - platforms starting from Armv8.0 - - Added support for Activity Monitors Extension version 1.1(``FEAT_AMUv1p1``) - - Added helper functions for Random number generator(``FEAT_RNG``) registers - - Added support for Armv8.6 Multi-threaded PMU extensions (``FEAT_MTPMU``) - - Added support for MTE Asymmetric Fault Handling extensions(``FEAT_MTE3``) - - Added support for Privileged Access Never extensions(``FEAT_PANx``) - -- Bootloader images - - Added PIE support for AArch32 builds - - Enable Trusted Random Number Generator service for BL32(sp_min) - -- Build System - - Added build option for Arm Feature Modifiers - -- Drivers - - Added support for interrupts in TZC-400 driver - - - Broadcom - - Added support for I2C, MDIO and USB drivers - - - Marvell - - Added support for secure read/write of dfc register-set - - Added support for thermal sensor driver - - Implement a3700_core_getc API in console driver - - Added rx training on 10G port - - - Marvell Mochi - - Added support for cn913x in PCIe mode - - - Marvell Armada A8K - - Added support for TRNG-IP-76 driver and accessing RNG register - - - Mediatek MT8192 - - Added support for following drivers - - MPU configuration for SCP/PCIe - - SPM suspend - - Vcore DVFS - - LPM - - PTP3 - - UART save and restore - - Power-off - - PMIC - - CPU hotplug and MCDI support - - SPMC - - MPU - - - Mediatek MT8195 - - Added support for following drivers - - GPIO, NCDI, SPMC drivers - - Power-off - - CPU hotplug, reboot and MCDI - - Delay timer and sys timer - - GIC - - - NXP - - Added support for - - non-volatile storage API - - chain of trust and trusted board boot using two modes: MBEDTLS and CSF - - fip-handler necessary for DDR initialization - - SMMU and console drivers - - crypto hardware accelerator driver - - following drivers: SD, EMMC, QSPI, FLEXSPI, GPIO, GIC, CSU, PMU, DDR - - NXP Security Monitor and SFP driver - - interconnect config APIs using ARM CCN-CCI driver - - TZC APIs to configure DDR region - - generic timer driver - - Device configuration driver - - - IMX - - Added support for image loading and io-storage driver for TBBR fip booting - - - Renesas - - Added support for PFC and EMMC driver - - - RZ Family: - - G2N, G2E and G2H SoCs - - Added support for watchdog, QoS, PFC and DRAM initialization - - - RZG Family: - - G2M - - Added support for QoS and DRAM initialization - - - Xilinx - - Added JTAG DCC support for Versal and ZynqMP SoC family. - -- Libraries - - C standard library - - Added support to print ``%`` in ``snprintf()`` and ``printf()`` APIs - - Added support for strtoull, strtoll, strtoul, strtol APIs from FreeBSD project - - - CPU support - - Added support for - - Cortex_A78C CPU - - Makalu ELP CPU - - Makalu CPU - - Matterhorn ELP CPU - - Neoverse-N2 CPU - - - CPU Errata - - Arm Cortex-A76: Added workaround for erratum 1946160 - - - Arm Cortex-A77: Added workaround for erratum 1946167 - - - Arm Cortex-A78: Added workaround for erratum 1941498 and 1951500 - - - Arm Neoverse-N1: Added workaround for erratum 1946160 - - - Flattened device tree(libfdt) - - Added support for wrapper function to read UUIDs in string format from dtb - -- Platforms - - Added support for MediaTek MT8195 - - Added support for Arm RD-N2 board - - - Allwinner - - Added support for H616 SoC - - - Arm - - Added support for GPT parser - - Protect GICR frames for fused/unused cores - - - Arm Morello - - Added VirtIO network device to Morello FVP fdts - - - Arm RD-N2 - - Added support for variant 1 of RD-N2 platform - - Enable AMU support - - - Arm RD-V1 - - Enable AMU support - - - Arm SGI - - Added support for platform variant build option - - - Arm TC0 - - Added Matterhorn ELP CPU support - - Added support for opteed - - - Arm Juno - - Added support to use hw_config in BL31 - - Use TRNG entropy source for SMCCC TRNG interface - - Condition Juno entropy source with CRC instructions - - - Marvell Mochi - - Added support for detection of secure mode - - - Marvell ARMADA - - Added support for new compile option A3720_DB_PM_WAKEUP_SRC - - Added support doing system reset via CM3 secure coprocessor - - Made several makefile enhancements required to build WTMI_MULTI_IMG and TIMDDRTOOL - - Added support for building DOIMAGETOOL tool - - Added new target mrvl_bootimage - - - Mediatek MT8192 - - Added support for rtc power off sequence - - - Mediatek MT8195 - - Added support for SiP service - - - STM32MP1 - - Added support for - - Seeed ODYSSEY SoM and board - - SDMMC2 and I2C2 pins in pinctrl - - I2C2 peripheral in DTS - - PIE for BL32 - - TZC-400 interrupt managament - - Linux Automation MC-1 board - - - Renesas RZG - - Added support for identifying EK874 RZ/G2E board - - Added support for identifying HopeRun HiHope RZ/G2H and RZ/G2H boards - - - Rockchip - - Added support for stack protector - - - QEMU - - Added support for ``max`` CPU - - Added Cortex-A72 support to ``virt`` platform - - Enabled trigger reboot from secure pl061 - - - QEMU SBSA - - Added support for sbsa-ref Embedded Controller - - - NXP - - Added support for warm reset to retain ddr content - - Added support for image loader necessary for loading fip image - - - lx2160a SoC Family - - Added support for - - new platform lx2160a-aqds - - new platform lx2160a-rdb - - new platform lx2162a-aqds - - errata handling - - - IMX imx8mm - - Added support for trusted board boot - - - TI K3 - - Added support for lite device board - - Enabled Cortex-A72 erratum 1319367 - - Enabled Cortex-A53 erratum 1530924 - - - Xilinx ZynqMP - - Added support for PS and system reset on WDT restart - - Added support for error management - - Enable support for log messages necessary for debug - - Added support for PM API SMC call for efuse and register access - -- Processes - - Introduced process for platform deprecation - - Added documentation for TF-A threat model - - Provided a copy of the MIT license to comply with the license - requirements of the arm-gic.h source file (originating from the Linux - kernel project and re-distributed in TF-A). - -- Services - - Added support for TRNG firmware interface service - - - Arm - - Added SiP service to configure Ethos-N NPU - - - SPMC - - Added documentation for SPM(Hafnium) SMMUv3 driver - - - SPMD - - Added support for - - FFA_INTERRUPT forwading ABI - - FFA_SECONDARY_EP_REGISTER ABI - - FF-A v1.0 boot time power management, SPMC secondary core boot and - early run-time power management - -- Tools - - - FIPTool - - Added mechanism to allow platform specific image UUID - - - git hooks - - Added support for conventional commits through commitlint hook, - commitizen hook and husky configuration files. - - - NXP tool - - Added support for a tool that creates pbl file from BL2 - - - Renesas RZ/G2 - - Added tool support for creating bootparam and cert_header images - - - CertCreate - - Added support for platform-defined certificates, keys, and extensions using - the platform's makefile - - - shared tools - - Added EFI_GUID representation to uuid helper data structure - -Changed -^^^^^^^ - -- Common components - - Print newline after hex address in aarch64 el3_panic function - - Use proper ``#address-cells`` and ``#size-cells`` for reserved-memory in dtbs - -- Drivers - - - Move SCMI driver from ST platform directory and make it common to all platforms - - - Arm GICv3 - - Shift eSPI register offset in GICD_OFFSET_64() - - Use mpidr to probe GICR for current CPU - - - Arm TZC-400 - - Adjust filter tag if it set to FILTER_BIT_ALL - - - Cadence - - Enhance UART driver APIs to put characters to fifo - - - Mediatek MT8192 - - Move timer driver to common folder - - Enhanced sys_cirq driver to add more IC services - - - Renesas - - Move ddr and delay driver to common directory - - - Renesas rcar - - Treat log as device memory in console driver - - - Renesas RZ Family: - - G2N and G2H SoCs - - Select MMC_CH1 for eMMC channel - - - Marvell - - Added support for checking if TRNG unit is present - - - Marvell A3K - - Set TXDCLK_2X_SEL bit during PCIe initialization - - Set mask parameter for every reg_set call - - - Marvell Mochi - - Added missing stream IDs configurations - - - MbedTLS - - Migrated to Mbed TLS v2.26.0 - - - IMX imx8mp - - Change the bl31 physical load address - - - QEMU SBSA - - Enable secure variable storage - - - SCMI - - Update power domain protocol version to 2.0 - - - STM32 - - Remove dead code from nand FMC driver - -- Libraries - - C Standard Library - - Use macros to reduce duplicated code between snprintf and printf - - - CPU support - - Sanity check pointers before use in AArch32 builds - - - Arm Cortex-A78 - - Remove rainier cpu workaround for errata 1542319 - - - Arm Makalu ELP - - Added "_arm" suffix to Makalu ELP CPU lib - - -- Miscellaneous - - Editorconfig - - set max line length to 100 - -- Platforms - - Allwinner - - Added reserved-memory node to DT - - Express memmap more dynamically - - Move SEPARATE_NOBITS_REGION to platforms - - Limit FDT checks to reduce code size - - Use CPUIDLE hardware when available - - Allow conditional compilation of SCPI and native PSCI ops - - Always use a 3MHz RSB bus clock - - Enable workaround for Cortex-A53 erratum 1530924 - - Fixed non-default PRELOADED_BL33_BASE - - Leave CPU power alone during BL31 setup - - Added several psci hooks enhancements to improve system shutdown/reset - sequence - - Return the PMIC to I2C mode after use - - Separate code to power off self and other CPUs - - Split native and SCPI-based PSCI implementations - - - Allwinner H6 - - Added R_PRCM security setup for H6 board - - Added SPC security setup for H6 board - - Use RSB for the PMIC connection on H6 - - - Arm - - Store UUID as a string, rather than ints - - Replace FIP base and size macro with a generic name - - Move compile time switch from source to dt file - - Don't provide NT_FW_CONFIG when booting hafnium - - Do not setup 'disabled' regulator - - Increase SP max size - - Remove false dependency of ARM_LINUX_KERNEL_AS_BL33 on RESET_TO_BL31 - and allow it to be enabled independently - - - Arm FVP - - Do not map GIC region in BL1 and BL2 - - - Arm Juno - - Refactor juno_getentropy() to return 64 bits on each call - - - Arm Morello - - Remove "virtio-rng" from Morello FVP - - Enable virtIO P9 device for Morello fvp - - - Arm RDV1 - - Allow all PSCI callbacks on RD-V1 - - Rename rddaniel to rdv1 - - - Arm RDV1MC - - Rename rddanielxlr to rdv1mc - - Initialize TZC-400 controllers - - - Arm TC0 - - Updated GICR base address - - Use scmi_dvfs clock index 1 for cores 4-7 through fdt - - Added reserved-memory node for OP-TEE fdts - - Enabled Theodul DSU in TC platform - - OP-TEE as S-EL1 SP with SPMC at S-EL2 - - Update Matterhorm ELP DVFS clock index - - - Arm SGI - - Allow access to TZC controller on all chips - - Define memory regions for multi-chip platforms - - Allow access to nor2 flash and system registers from S-EL0 - - Define default list of memory regions for DMC-620 TZC - - Improve macros defining cper buffer memory region - - Refactor DMC-620 error handling SMC function id - - Refactor SDEI specific macros - - Added platform id value for RDN2 platform - - Refactored header file inclusions and inclusion of memory mapping - - - Arm RDN2 - - Allow usage of secure partitions on RDN2 platform - - Update GIC redistributor and TZC base address - - - Arm SGM775 - - Deprecate Arm sgm775 FVP platform - - - Marvell - - Increase TX FIFO EMPTY timeout from 2ms to 3ms - - Update delay code to be compatible with 1200 MHz CPU - - - Marvell ARMADA - - Postpone MSS CPU startup to BL31 stage - - Allow builds without MSS support - - Use MSS SRAM in secure mode - - Added missing FORCE, .PHONY and clean targets - - Cleanup MSS SRAM if used for copy - - Move definition of mrvl_flash target to common marvell_common.mk file - - Show informative build messages and blank lines - - - Marvell ARMADA A3K - - Added a new target mrvl_uart which builds UART image - - Added checks that WTP, MV_DDR_PATH and CRYPTOPP_PATH are correctly defined - - Allow use of the system Crypto++ library - - Build $(WTMI_ENC_IMG) in $(BUILD_PLAT) directory - - Build intermediate files in $(BUILD_PLAT) directory - - Build UART image files directly in $(BUILD_UART) subdirectory - - Correctly set DDR_TOPOLOGY and CLOCKSPRESET for WTMI - - Do not use 'echo -e' in Makefile - - Improve 4GB DRAM usage from 3.375 GB to 3.75 GB - - Remove unused variable WTMI_SYSINIT_IMG from Makefile - - Simplify check if WTP variable is defined - - Split building $(WTMI_MULTI_IMG) and $(TIMDDRTOOL) - - - Marvell ARMADA A8K - - Allow CP1/CP2 mapping at BLE stage - - - Mediatek MT8183 - - Added timer V20 compensation - - - Nvidia Tegra - - Rename SMC API - - - TI K3 - - Make plat_get_syscnt_freq2 helper check CNT_FID0 register - - Fill non-message data fields in sec_proxy with 0x0 - - Update ti_sci_msg_req_reboot ABI to include domain - - Enable USE_COHERENT_MEM only for the generic board - - Explicitly map SEC_SRAM_BASE to 0x0 - - Use BL31_SIZE instead of computing - - Define the correct number of max table entries and increase SRAM size - to account for additional table - - - Raspberry Pi4 - - Switch to gicv2.mk and GICV2_SOURCES - - - Renesas - - Move headers and assembly files to common folder - - - Renesas rzg - - Added device tree memory node enhancements - - - Rockchip - - Switch to using common gicv3.mk - - - STM32MP1 - - Set BL sizes regardless of flags - - - QEMU - - Include gicv2.mk for compiling GICv2 source files - - Change DEVICE2 definition for MMU - - Added helper to calculate the position shift from MPIDR - - - QEMU SBSA - - Include libraries for Cortex-A72 - - Increase SHARED_RAM_SIZE - - Addes support in spm_mm for upto 512 cores - - Added support for topology handling - - - QTI - - Mandate SMC implementation - - - Xilinx - - Rename the IPI CRC checksum macro - - Use fno-jump-tables flag in CPPFLAGS - - - Xilinx versal - - Added the IPI CRC checksum macro support - - Mark IPI calls secure/non-secure - - Enable sgi to communicate with linux using IPI - - Remove Cortex-A53 compilation - - - Xilinx ZynqMP - - Configure counter frequency during initialization - - Filter errors related to clock gate permissions - - Implement pinctrl request/release EEMI API - - Reimplement pinctrl get/set config parameter EEMI API calls - - Reimplement pinctrl set/get function EEMI API - - Update error codes to match Linux and PMU Firmware - - Update PM version and support PM version check - - Update return type in query functions - - Added missing ids for 43/46/47dr devices - - Checked for DLL status before doing reset - - Disable ITAPDLYENA bit for zero ITAP delay - - Include GICv2 makefile - - Remove the custom crash implementation - -- Services - - - SPMD - - Lock the g_spmd_pm structure - - Declare third cactus instance as UP SP - - Provide number of vCPUs and VM size for first SP - - Remove ``chosen`` node from SPMC manifests - - Move OP-TEE SP manifest DTS to FVP platform - - Update OP-TEE SP manifest with device-regions node - - Remove device-memory node from SPMC manifests - - - SPM_MM - - Use sp_boot_info to set SP context - - - SDEI - - Updata the affinity of shared event - -- Tools - - FIPtool - - Do not print duplicate verbose lines about building fiptool - - - CertCreate - - Updated tool for platform defined certs, keys & extensions - - Create only requested certificates - - Avoid duplicates in extension stack - -Resolved Issues -^^^^^^^^^^^^^^^ -- Several fixes for typos and mis-spellings in documentation - -- Build system - - Fixed ${FIP_NAME} to be rebuilt only when needed in Makefile - - Do not mark file targets as .PHONY target in Makefile - -- Drivers - - Authorization - - Avoid NV counter upgrade without certificate validation - - - Arm GICv3 - - Fixed logical issue for num_eints - - Limit SPI ID to avoid misjudgement in GICD_OFFSET() - - Fixed potential GICD context override with ESPI enabled - - - Marvell A3700 - - Fixed configuring polarity invert bits - - - Arm TZC-400 - - Correct FAIL_CONTROL Privileged bit - - Fixed logical error in FILTER_BIT definitions - - - Renesas rcar - - Fixed several coding style violations reported by checkpatch - -- Libraries - - Arch helpers - - Fixed assertions in processing dynamic relocations for AArch64 builds - - - C standard library - - Fixed MISRA issues in memset() ABI - - - RAS - - Fixed bug of binary search in RAS interrupt handler - -- Platforms - - - Arm - - Fixed missing copyrights in arm-gic.h file - - Fixed the order of header files in several dts files - - Fixed error message printing in board makefile - - Fixed bug of overriding the last node in image load helper API - - Fixed stdout-path in fdts files of TC0 and N1SDP platforms - - Turn ON/OFF redistributor in sync with GIC CPU interface ON/OFF for css platforms - - - Arm FVP - - Fixed Generic Timer interrupt types in platform dts files - - - Arm Juno - - Fixed parallel build issue for romlib config - - - Arm SGI - - Fixed bug in SDEI receive event of RAS handler - - - Intel Agilex - - Fixed PLAT_MAX_PWR_LVL value - - - Marvell - - Fixed SPD handling in dram port - - - Marvell ARMADA - - Fixed TRNG return SMC handling - - Fixed the logic used for LD selector mask - - Fixed MSS firmware loader for A8K family - - - ST - - Fixed few violations reported by coverity static checks - - - STM32MP1 - - Fixed SELFREF_TO_X32 mask in ddr driver - - Do not keep mmc_device_info in stack - - Correct plat_crash_console_flush() - - - QEMU SBSA - - Fixed memory type of secure NOR flash - - - QTI - - Fixed NUM_APID and REG_APID_MAP() argument in SPMI driver - - - Intel - - Do not keep mmc_device_info in stack - - - Hisilicon - - Do not keep mmc_device_info in stack - - -- Services - - - EL3 runtime - - Fixed the EL2 context save/restore routine by removing EL2 generic - timer system registers - - Added fix for exception handler in BL31 by synchronizing pending EA - using DSB barrier - - - SPMD - - Fixed error codes to use int32_t type - - - TSPD - - Added bug fix in tspd interrupt handling when TSP_NS_INTR_ASYNC_PREEMPT is enabled - - - TRNG - - Fixed compilation errors with -O0 compile option - - - DebugFS - - Checked channel index before calling clone function - - - PSCI - - Fixed limit of 256 CPUs caused by cast to unsigned char - - - TSP - - Fixed compilation erros when built with GCC 11.0.0 toolchain - -- Tools - - FIPtool - - Do not call ``make clean`` for ``all`` target - - - CertCreate - - Fixed bug to avoid cleaning when building the binary - - Used preallocated parts of the HASH struct to avoid leaking HASH struct fields - - Free arguments copied with strdup - - Free keys after use - - Free X509_EXTENSION structures on stack to avoid leaking them - - Optimized the code to avoid unnecessary attempts to create non-requested - certificates - -Version 2.4 ------------ - -New Features -^^^^^^^^^^^^ - -- Architecture support - - Armv8.6-A - - Added support for Armv8.6 Enhanced Counter Virtualization (ECV) - - Added support for Armv8.6 Fine Grained Traps (FGT) - - Added support for Armv8.6 WFE trap delays - -- Bootloader images - - Added support for Measured Boot - -- Build System - - Added build option ``COT_DESC_IN_DTB`` to create Chain of Trust at runtime - - Added build option ``OPENSSL_DIR`` to direct tools to OpenSSL libraries - - Added build option ``RAS_TRAP_LOWER_EL_ERR_ACCESS`` to enable trapping RAS - register accesses from EL1/EL2 to EL3 - - Extended build option ``BRANCH_PROTECTION`` to support branch target - identification - -- Common components - - Added support for exporting CPU nodes to the device tree - - Added support for single and dual-root Chains of Trust in secure - partitions - -- Drivers - - Added Broadcom RNG driver - - Added Marvell ``mg_conf_cm3`` driver - - Added System Control and Management Interface (SCMI) driver - - Added STMicroelectronics ETZPC driver - - - Arm GICv3 - - Added support for detecting topology at runtime - - - Dual Root - - Added support for platform certificates - - - Marvell Cache LLC - - Added support for mapping the entire LLC into SRAM - - - Marvell CCU - - Added workaround for erratum 3033912 - - - Marvell CP110 COMPHY - - Added support for SATA COMPHY polarity inversion - - Added support for USB COMPHY polarity inversion - - Added workaround for erratum IPCE_COMPHY-1353 - - - STM32MP1 Clocks - - Added ``RTC`` as a gateable clock - - Added support for shifted clock selector bit masks - - Added support for using additional clocks as parents - -- Libraries - - C standard library - - Added support for hexadecimal and pointer format specifiers in - ``snprint()`` - - Added assembly alternatives for various library functions - - - CPU support - - Arm Cortex-A53 - - Added workaround for erratum 1530924 - - - Arm Cortex-A55 - - Added workaround for erratum 1530923 - - - Arm Cortex-A57 - - Added workaround for erratum 1319537 - - - Arm Cortex-A76 - - Added workaround for erratum 1165522 - - Added workaround for erratum 1791580 - - Added workaround for erratum 1868343 - - - Arm Cortex-A72 - - Added workaround for erratum 1319367 - - - Arm Cortex-A77 - - Added workaround for erratum 1508412 - - Added workaround for erratum 1800714 - - Added workaround for erratum 1925769 - - - Arm Neoverse-N1 - - Added workaround for erratum 1868343 - - - EL3 Runtime - - Added support for saving/restoring registers related to nested - virtualization in EL2 context switches if the architecture supports it - - - FCONF - - Added support for Measured Boot - - Added support for populating Chain of Trust properties - - Added support for loading the ``fw_config`` image - - - Measured Boot - - Added support for event logging - -- Platforms - - Added support for Arm Morello - - Added support for Arm TC0 - - Added support for iEi PUZZLE-M801 - - Added support for Marvell OCTEON TX2 T9130 - - Added support for MediaTek MT8192 - - Added support for NXP i.MX 8M Nano - - Added support for NXP i.MX 8M Plus - - Added support for QTI CHIP SC7180 - - Added support for STM32MP151F - - Added support for STM32MP153F - - Added support for STM32MP157F - - Added support for STM32MP151D - - Added support for STM32MP153D - - Added support for STM32MP157D - - - Arm - - Added support for platform-owned SPs - - Added support for resetting to BL31 - - - Arm FPGA - - Added support for Klein - - Added support for Matterhorn - - Added support for additional CPU clusters - - - Arm FVP - - Added support for performing SDEI platform setup at runtime - - Added support for SMCCC's ``SMCCC_ARCH_SOC_ID`` command - - Added an ``id`` field under the NV-counter node in the device tree to - differentiate between trusted and non-trusted NV-counters - - Added support for extracting the clock frequency from the timer node - in the device tree - - - Arm Juno - - Added support for SMCCC's ``SMCCC_ARCH_SOC_ID`` command - - - Arm N1SDP - - Added support for cross-chip PCI-e - - - Marvell - - Added support for AVS reduction - - - Marvell ARMADA - - Added support for twin-die combined memory device - - - Marvell ARMADA A8K - - Added support for DDR with 32-bit bus width (both ECC and non-ECC) - - - Marvell AP806 - - Added workaround for erratum FE-4265711 - - - Marvell AP807 - - Added workaround for erratum 3033912 - - - Nvidia Tegra - - Added debug printouts indicating SC7 entry sequence completion - - Added support for SDEI - - Added support for stack protection - - Added support for GICv3 - - Added support for SMCCC's ``SMCCC_ARCH_SOC_ID`` command - - - Nvidia Tegra194 - - Added support for RAS exception handling - - Added support for SPM - - - NXP i.MX - - Added support for SDEI - - - QEMU SBSA - - Added support for the Secure Partition Manager - - - QTI - - Added RNG driver - - Added SPMI PMIC arbitrator driver - - Added support for SMCCC's ``SMCCC_ARCH_SOC_ID`` command - - - STM32MP1 - - Added support for exposing peripheral interfaces to the non-secure - world at runtime - - Added support for SCMI clock and reset services - - Added support for STM32MP15x CPU revision Z - - Added support for SMCCC services in ``SP_MIN`` - -- Services - - Secure Payload Dispatcher - - Added a provision to allow clients to retrieve the service UUID - - - SPMC - - Added secondary core endpoint information to the SPMC context - structure - - - SPMD - - Added support for booting OP-TEE as a guest S-EL1 Secure Partition on - top of Hafnium in S-EL2 - - Added a provision for handling SPMC messages to register secondary - core entry points - - Added support for power management operations - -- Tools - - CertCreate - - Added support for secure partitions - - - CertTool - - Added support for the ``fw_config`` image - - - FIPTool - - Added support for the ``fw_config`` image - -Changed -^^^^^^^ - -- Architecture support - -- Bootloader images - -- Build System - - The top-level Makefile now supports building FipTool on Windows - - The default value of ``KEY_SIZE`` has been changed to to 2048 when RSA is - in use - - The previously-deprecated macro ``__ASSEMBLY__`` has now been removed - -- Common components - - Certain functions that flush the console will no longer return error - information - -- Drivers - - Arm GIC - - Usage of ``drivers/arm/gic/common/gic_common.c`` has now been - deprecated in favour of ``drivers/arm/gic/vX/gicvX.mk`` - - Added support for detecting the presence of a GIC600-AE - - Added support for detecting the presence of a GIC-Clayton - - - Marvell MCI - - Now performs link tuning for all MCI interfaces to improve performance - - - Marvell MoChi - - PIDI masters are no longer forced into a non-secure access level when - ``LLC_SRAM`` is enabled - - The SD/MMC controllers are now accessible from guest virtual machines - - - Mbed TLS - - Migrated to Mbed TLS v2.24.0 - - - STM32 FMC2 NAND - - Adjusted FMC node bindings to include an EBI controller node - - - STM32 Reset - - Added an optional timeout argument to assertion functions - - - STM32MP1 Clocks - - Enabled several additional system clocks during initialization - -- Libraries - - C Standard Library - - Improved ``memset`` performance by avoiding single-byte writes - - Added optimized assembly variants of ``memset`` - - - CPU support - - Renamed Cortex-Hercules to Cortex-A78 - - Renamed Cortex-Hercules AE to Cortex-A78 AE - - Renamed Neoverse Zeus to Neoverse V1 - - - Coreboot - - Updated ‘coreboot_get_memory_type’ API to take an extra argument as a - ’memory size’ that used to return a valid memory type. - - - libfdt - - Updated to latest upstream version - -- Platforms - - Allwinner - - Disabled non-secure access to PRCM power control registers - - - Arm - - ``BL32_BASE`` is now platform-dependent when ``SPD_spmd`` is enabled - - Added support for loading the Chain of Trust from the device tree - - The firmware update check is now executed only once - - NV-counter base addresses are now loaded from the device tree when - ``COT_DESC_IN_DTB`` is enabled - - Now loads and populates ``fw_config`` and ``tb_fw_config`` - - FCONF population now occurs after caches have been enabled in order - to reduce boot times - - - Arm Corstone-700 - - Platform support has been split into both an FVP and an FPGA variant - - - Arm FPGA - - DTB and BL33 load addresses have been given sensible default values - - Now reads generic timer counter frequency, GICD and GICR base - addresses, and UART address from DT - - Now treats the primary PL011 UART as an SBSA Generic UART - - - Arm FVP - - Secure interrupt descriptions, UART parameters, clock frequencies and - GICv3 parameters are now queried through FCONF - - UART parameters are now queried through the device tree - - Added an owner field to Cactus secure partitions - - Increased the maximum size of BL2 when the Chain of Trust is loaded - from the device tree - - Reduces the maximum size of BL31 - - The ``FVP_USE_SP804_TIMER`` and ``FVP_VE_USE_SP804_TIMER`` build - options have been removed in favour of a common ``USE_SP804_TIMER`` - option - - Added a third Cactus partition to manifests - - Device tree nodes now store UUIDs in big-endian - - - Arm Juno - - Increased the maximum size of BL2 when optimizations have not been - applied - - Reduced the maximum size of BL31 and BL32 - - - Marvell AP807 - - Enabled snoop filters - - - Marvell ARMADA A3K - - UART recovery images are now suffixed with ``.bin`` - - - Marvell ARMADA A8K - - Option ``BL31_CACHE_DISABLE`` is now disabled (``0``) by default - - - Nvidia Tegra - - Added VPR resize supported check when processing video memory resize - requests - - Added SMMU verification to prevent potential issues caused by - undetected corruption of the SMMU configuration during boot - - The GIC CPU interface is now properly disabled after CPU off - - The GICv2 sources list and the ``BL31_SIZE`` definition have been made - platform-specific - - The SPE driver will no longer flush the console when writing - individual characters - - - Nvidia Tegra194 - - TZDRAM setup has been moved to platform-specific early boot handlers - - Increased verbosity of debug prints for RAS SErrors - - Support for powering down CPUs during CPU suspend has been removed - - Now verifies firewall settings before using resources - - - TI K3 - - The UART number has been made configurable through ``K3_USART`` - - - Rockchip RK3368 - - The maximum number of memory map regions has been increased to 20 - - - Socionext Uniphier - - The maximum size of BL33 has been increased to support larger - bootloaders - - - STM32 - - Removed platform-specific DT functions in favour of using existing - generic alternatives - - - STM32MP1 - - Increased verbosity of exception reports in debug builds - - Device trees have been updated to align with the Linux kernel - - Now uses the ETZPC driver to configure secure-aware interfaces for - assignment to the non-secure world - - Finished good variants have been added to the board identifier - enumerations - - Non-secure access to clocks and reset domains now depends on their - state of registration - - NEON is now disabled in ``SP_MIN`` - - The last page of ``SYSRAM`` is now used as SCMI shared memory - - Checks to verify platform compatibility have been added to verify that - an image is compatible with the chip ID of the running platform - - - QEMU SBSA - - Removed support for Arm's Cortex-A53 - -- Services - - Renamed SPCI to FF-A - - - SPMD - - No longer forwards requests to the non-secure world when retrieving - partition information - - SPMC manifest size is now retrieved directly from SPMD instead of the - device tree - - The FF-A version handler now returns SPMD's version when the origin - of the call is secure, and SPMC's version when the origin of the call - is non-secure - - - SPMC - - Updated the manifest to declare CPU nodes in descending order as per - the SPM (Hafnium) multicore requirement - - Updated the device tree to mark 2GB as device memory for the first - partition excluding trusted DRAM region (which is reserved for SPMC) - - Increased the number of EC contexts to the maximum number of PEs as - per the FF-A specification - -- Tools - - FIPTool - - Now returns ``0`` on ``help`` and ``help <command>`` - - - Marvell DoImage - - Updated Mbed TLS support to v2.8 - - - SPTool - - Now appends CertTool arguments - -Resolved Issues -^^^^^^^^^^^^^^^ - -- Bootloader images - - Fixed compilation errors for dual-root Chains of Trust caused by symbol - collision - - - BL31 - - Fixed compilation errors on platforms with fewer than 4 cores caused - by initialization code exceeding the end of the stacks - - Fixed compilation errors when building a position-independent image - -- Build System - - Fixed invalid empty version strings - - Fixed compilation errors on Windows caused by a non-portable architecture - revision comparison - -- Drivers - - Arm GIC - - Fixed spurious interrupts caused by a missing barrier - - - STM32 Flexible Memory Controller 2 (FMC2) NAND driver - - Fixed runtime instability caused by incorrect error detection logic - - - STM32MP1 Clock driver - - Fixed incorrectly-formatted log messages - - Fixed runtime instability caused by improper clock gating procedures - - - STMicroelectronics Raw NAND driver - - Fixed runtime instability caused by incorrect unit conversion when - waiting for NAND readiness - -- Libraries - - AMU - - Fixed timeout errors caused by excess error logging - - - EL3 Runtime - - Fixed runtime instability caused by improper register save/restore - routine in EL2 - - - FCONF - - Fixed failure to initialize GICv3 caused by overly-strict device tree - requirements - - - Measured Boot - - Fixed driver errors caused by a missing default value for the - ``HASH_ALG`` build option - - - SPE - - Fixed feature detection check that prevented CPUs supporting SVE from - detecting support for SPE in the non-secure world - - - Translation Tables - - Fixed various MISRA-C 2012 static analysis violations - -- Platforms - - Allwinner A64 - - Fixed USB issues on certain battery-powered device caused by - improperly activated USB power rail - - - Arm - - Fixed compilation errors caused by increase in BL2 size - - Fixed compilation errors caused by missing Makefile dependencies to - generated files when building the FIP - - Fixed MISRA-C 2012 static analysis violations caused by unused - structures in include directives intended to be feature-gated - - - Arm FPGA - - Fixed initialization issues caused by incorrect MPIDR topology mapping - logic - - - Arm RD-N1-edge - - Fixed compilation errors caused by mismatched parentheses in Makefile - - - Arm SGI - - Fixed crashes due to the flash memory used for cold reboot attack - protection not being mapped - - - Intel Agilex - - Fixed initialization issues caused by several compounding bugs - - - Marvell - - Fixed compilation warnings caused by multiple Makefile inclusions - - - Marvell ARMADA A3K - - Fixed boot issue in debug builds caused by checks on the BL33 load - address that are not appropriate for this platform - - - Nvidia Tegra - - Fixed incorrect delay timer reads - - Fixed spurious interrupts in the non-secure world during cold boot - caused by the arbitration bit in the memory controller not being - cleared - - Fixed faulty video memory resize sequence - - - Nvidia Tegra194 - - Fixed incorrect alignment of TZDRAM base address - - - NXP iMX8M - - Fixed CPU hot-plug issues caused by race condition - - - STM32MP1 - - Fixed compilation errors in highly-parallel builds caused by incorrect - Makefile dependencies - - - STM32MP157C-ED1 - - Fixed initialization issues caused by missing device tree hash node - - - Raspberry Pi 3 - - Fixed compilation errors caused by incorrect dependency ordering in - Makefile - - - Rockchip - - Fixed initialization issues caused by non-critical errors when parsing - FDT being treated as critical - - - Rockchip RK3368 - - Fixed runtime instability caused by incorrect CPUID shift value - - - QEMU - - Fixed compilation errors caused by incorrect dependency ordering in - Makefile - - - QEMU SBSA - - Fixed initialization issues caused by FDT exceeding reserved memory - size - - - QTI - - Fixed compilation errors caused by inclusion of a non-existent file - -- Services - - FF-A (previously SPCI) - - Fixed SPMD aborts caused by incorrect behaviour when the manifest is - page-aligned - -- Tools - - Fixed compilation issues when compiling tools from within their respective - directories - - - FIPTool - - Fixed command line parsing issues on Windows when using arguments - whose names also happen to be a subset of another's - - - Marvell DoImage - - Fixed PKCS signature verification errors at boot on some platforms - caused by generation of misaligned images - -Known Issues -^^^^^^^^^^^^ - -- Platforms - - NVIDIA Tegra - - Signed comparison compiler warnings occurring in libfdt are currently - being worked around by disabling the warning for the platform until - the underlying issue is resolved in libfdt - -Version 2.3 ------------ - -New Features -^^^^^^^^^^^^ - -- Arm Architecture - - Add support for Armv8.4-SecEL2 extension through the SPCI defined SPMD/SPMC - components. - - - Build option to support EL2 context save and restore in the secure world - (CTX_INCLUDE_EL2_REGS). - - - Add support for SMCCC v1.2 (introducing the new SMCCC_ARCH_SOC_ID SMC). - Note that the support is compliant, but the SVE registers save/restore will - be done as part of future S-EL2/SPM development. - -- BL-specific - - Enhanced BL2 bootloader flow to load secure partitions based on firmware - configuration data (fconf). - - - Changes necessary to support SEPARATE_NOBITS_REGION feature - - - TSP and BL2_AT_EL3: Add Position Independent Execution ``PIE`` support - -- Build System - - Add support for documentation build as a target in Makefile - - - Add ``COT`` build option to select the Chain of Trust to use when the - Trusted Boot feature is enabled (default: ``tbbr``). - - - Added creation and injection of secure partition packages into the FIP. - - - Build option to support SPMC component loading and run at S-EL1 - or S-EL2 (SPMD_SPM_AT_SEL2). - - - Enable MTE support - - - Enable Link Time Optimization in GCC - - - Enable -Wredundant-decls warning check - - - Makefile: Add support to optionally encrypt BL31 and BL32 - - - Add support to pass the nt_fw_config DTB to OP-TEE. - - - Introduce per-BL ``CPPFLAGS``, ``ASFLAGS``, and ``LDFLAGS`` - - - build_macros: Add CREATE_SEQ function to generate sequence of numbers - -- CPU Support - - cortex-a57: Enable higher performance non-cacheable load forwarding - - - Hercules: Workaround for Errata 1688305 - - - Klein: Support added for Klein CPU - - - Matterhorn: Support added for Matterhorn CPU - -- Drivers - - auth: Add ``calc_hash`` function for hash calculation. Used for - authentication of images when measured boot is enabled. - - - cryptocell: Add authenticated decryption framework, and support - for CryptoCell-713 and CryptoCell-712 RSA 3K - - - gic600: Add support for multichip configuration and Clayton - - gicv3: Introduce makefile, Add extended PPI and SPI range, - Add support for probing multiple GIC Redistributor frames - - gicv4: Add GICv4 extension for GIC driver - - - io: Add an IO abstraction layer to load encrypted firmwares - - - mhu: Derive doorbell base address - - - mtd: Add SPI-NOR, SPI-NAND, SPI-MEM, and raw NAND framework - - - scmi: Allow use of multiple SCMI channels - - - scu: Add a driver for snoop control unit - -- Libraries - - coreboot: Add memory range parsing and use generic base address - - - compiler_rt: Import popcountdi2.c and popcountsi2.c files, - aeabi_ldivmode.S file and dependencies - - - debugFS: Add DebugFS functionality - - - el3_runtime: Add support for enabling S-EL2 - - - fconf: Add Firmware Configuration Framework (fconf) (experimental). - - - libc: Add memrchr function - - - locks: bakery: Use is_dcache_enabled() helper and add a DMB to - the 'read_cache_op' macro - - - psci: Add support to enable different personality of the same soc. - - - xlat_tables_v2: Add support to pass shareability attribute for - normal memory region, use get_current_el_maybe_constant() in - is_dcache_enabled(), read-only xlat tables for BL31 memory, and - add enable_mmu() - -- New Platforms Support - - arm/arm_fpga: New platform support added for FPGA - - - arm/rddaniel: New platform support added for rd-daniel platform - - - brcm/stingray: New platform support added for Broadcom stingray platform - - - nvidia/tegra194: New platform support for Nvidia Tegra194 platform - -- Platforms - - allwinner: Implement PSCI system suspend using SCPI, add a msgbox - driver for use with SCPI, and reserve and map space for the SCP firmware - - allwinner: axp: Add AXP805 support - - allwinner: power: Add DLDO4 power rail - - - amlogic: axg: Add a build flag when using ATOS as BL32 and support for - the A113D (AXG) platform - - - arm/a5ds: Add ethernet node and L2 cache node in devicetree - - - arm/common: Add support for the new `dualroot` chain of trust - - arm/common: Add support for SEPARATE_NOBITS_REGION - - arm/common: Re-enable PIE when RESET_TO_BL31=1 - - arm/common: Allow boards to specify second DRAM Base address - and to define PLAT_ARM_TZC_FILTERS - - - arm/corstone700: Add support for mhuv2 and stack protector - - - arm/fvp: Add support for fconf in BL31 and SP_MIN. Populate power - domain descriptor dynamically by leveraging fconf APIs. - - arm/fvp: Add Cactus/Ivy Secure Partition information and use two - instances of Cactus at S-EL1 - - arm/fvp: Add support to run BL32 in TDRAM and BL31 in secure DRAM - - arm/fvp: Add support for GICv4 extension and BL2 hash calculation in BL1 - - - arm/n1sdp: Setup multichip gic routing table, update platform macros - for dual-chip setup, introduce platform information SDS region, add - support to update presence of External LLC, and enable the - NEOVERSE_N1_EXTERNAL_LLC flag - - - arm/rdn1edge: Add support for dual-chip configuration and use - CREATE_SEQ helper macro to compare chip count - - - arm/sgm: Always use SCMI for SGM platforms - - arm/sgm775: Add support for dynamic config using fconf - - - arm/sgi: Add multi-chip mode parameter in HW_CONFIG dts, macros for - remote chip device region, chip_id and multi_chip_mode to platform - variant info, and introduce number of chips macro - - - brcm: Add BL2 and BL31 support common across Broadcom platforms - - brcm: Add iproc SPI Nor flash support, spi driver, emmc driver, - and support to retrieve plat_toc_flags - - - hisilicon: hikey960: Enable system power off callback - - - intel: Enable bridge access, SiP SMC secure register access, and uboot - entrypoint support - - intel: Implement platform specific system reset 2 - - intel: Introduce mailbox response length handling - - - imx: console: Use CONSOLE_T_BASE for UART base address and generic console_t - data structure - - imx8mm: Provide uart base as build option and add the support for opteed spd - on imx8mq/imx8mm - - imx8qx: Provide debug uart num as build - - imx8qm: Apply clk/pinmux configuration for DEBUG_CONSOLE and provide debug - uart num as build param - - - marvell: a8k: Implement platform specific power off and add support - for loading MG CM3 images - - - mediatek: mt8183: Add Vmodem/Vcore DVS init level - - - qemu: Support optional encryption of BL31 and BL32 images - and ARM_LINUX_KERNEL_AS_BL33 to pass FDT address - - qemu: Define ARMV7_SUPPORTS_VFP - - qemu: Implement PSCI_CPU_OFF and qemu_system_off via semihosting - - - renesas: rcar_gen3: Add new board revision for M3ULCB - - - rockchip: Enable workaround for erratum 855873, claim a macro to enable - hdcp feature for DP, enable power domains of rk3399 before reset, add - support for UART3 as serial output, and initialize reset and poweroff - GPIOs with known invalid value - - - rpi: Implement PSCI CPU_OFF, use MMIO accessor, autodetect Mini-UART - vs. PL011 configuration, and allow using PL011 UART for RPi3/RPi4 - - rpi3: Include GPIO driver in all BL stages and use same "clock-less" - setup scheme as RPi4 - - rpi3/4: Add support for offlining CPUs - - - st: stm32mp1: platform.mk: Support generating multiple images in one build, - migrate to implicit rules, derive map file name from target name, generate - linker script with fixed name, and use PHONY for the appropriate targets - - st: stm32mp1: Add support for SPI-NOR, raw NAND, and SPI-NAND boot device, - QSPI, FMC2 driver - - st: stm32mp1: Use stm32mp_get_ddr_ns_size() function, set XN attribute for - some areas in BL2, dynamically map DDR later and non-cacheable during its - test, add a function to get non-secure DDR size, add DT helper for reg by - name, and add compilation flags for boot devices - - - socionext: uniphier: Turn on ENABLE_PIE - - - ti: k3: Add PIE support - - - xilinx: versal: Add set wakeup source, client wakeup, query data, request - wakeup, PM_INIT_FINALIZE, PM_GET_TRUSTZONE_VERSION, PM IOCTL, support for - suspend related, and Get_ChipID APIs - - xilinx: versal: Implement power down/restart related EEMI, SMC handler for - EEMI, PLL related PM, clock related PM, pin control related PM, reset related - PM, device related PM , APIs - - xilinx: versal: Enable ipi mailbox service - - xilinx: versal: Add get_api_version support and support to send PM API to PMC - using IPI - - xilinx: zynqmp: Add checksum support for IPI data, GET_CALLBACK_DATA - function, support to query max divisor, CLK_SET_RATE_PARENT in gem clock - node, support for custom type flags, LPD WDT clock to the pm_clock structure, - idcodes for new RFSoC silicons ZU48DR and ZU49DR, and id for new RFSoC device - ZU39DR - -- Security - - Use Speculation Barrier instruction for v8.5+ cores - - - Add support for optional firmware encryption feature (experimental). - - - Introduce a new `dualroot` chain of trust. - - - aarch64: Prevent speculative execution past ERET - - aarch32: Stop speculative execution past exception returns. - -- SPCI - - Introduced the Secure Partition Manager Dispatcher (SPMD) component as a - new standard service. - -- Tools - - cert_create: Introduce CoT build option and TBBR CoT makefile, - and define the dualroot CoT - - - encrypt_fw: Add firmware authenticated encryption tool - - - memory: Add show_memory script that prints a representation - of the memory layout for the latest build - -Changed -^^^^^^^ - -- Arm Architecture - - PIE: Make call to GDT relocation fixup generalized - -- BL-Specific - - Increase maximum size of BL2 image - - - BL31: Discard .dynsym .dynstr .hash sections to make ENABLE_PIE work - - BL31: Split into two separate memory regions - - - Unify BL linker scripts and reduce code duplication. - -- Build System - - Changes to drive cert_create for dualroot CoT - - - Enable -Wlogical-op always - - - Enable -Wshadow always - - - Refactor the warning flags - - - PIE: Pass PIE options only to BL31 - - - Reduce space lost to object alignment - - - Set lld as the default linker for Clang builds - - - Remove -Wunused-const-variable and -Wpadded warning - - - Remove -Wmissing-declarations warning from WARNING1 level - -- Drivers - - authentication: Necessary fix in drivers to upgrade to mbedtls-2.18.0 - - - console: Integrate UART base address in generic console_t - - - gicv3: Change API for GICR_IPRIORITYR accessors and separate - GICD and GICR accessor functions - - - io: Change seek offset to signed long long and panic in case - of io setup failure - - - smmu: SMMUv3: Changed retry loop to delay timer - - - tbbr: Reduce size of hash and ECDSA key buffers when possible - -- Library Code - - libc: Consolidate the size_t, unified, and NULL definitions, - and unify intmax_t and uintmax_t on AArch32/64 - - - ROMLIB: Optimize memory layout when ROMLIB is used - - - xlat_tables_v2: Use ARRAY_SIZE in REGISTER_XLAT_CONTEXT_FULL_SPEC, - merge REGISTER_XLAT_CONTEXT_{FULL_SPEC,RO_BASE_TABLE}, - and simplify end address checks in mmap_add_region_check() - -- Platforms - - allwinner: Adjust SRAM A2 base to include the ARISC vectors, clean up MMU - setup, reenable USE_COHERENT_MEM, remove unused include path, move the - NOBITS region to SRAM A1, convert AXP803 regulator setup code into a driver, - enable clock before resetting I2C/RSB - - allwinner: h6: power: Switch to using the AXP driver - - allwinner: a64: power: Use fdt_for_each_subnode, remove obsolete register - check, remove duplicate DT check, and make sunxi_turn_off_soc static - - allwinner: Build PMIC bus drivers only in BL31, clean up PMIC-related error - handling, and synchronize PMIC enumerations - - - arm/a5ds: Change boot address to point to DDR address - - - arm/common: Check for out-of-bound accesses in the platform io policies - - - arm/corstone700: Updating the kernel arguments to support initramfs, - use fdts DDR memory and XIP rootfs, and set UART clocks to 32MHz - - - arm/fvp: Modify multithreaded dts file of DynamIQ FVPs, slightly bump - the stack size for bl1 and bl2, remove re-definition of topology related - build options, stop reclaiming init code with Clang builds, and map only - the needed DRAM region statically in BL31/SP_MIN - - - arm/juno: Maximize space allocated to SCP_BL2 - - - arm/sgi: Bump bl1 RW limit, mark remote chip shared ram as non-cacheable, - move GIC related constants to board files, include AFF3 affinity in core - position calculation, move bl31_platform_setup to board file, and move - topology information to board folder - - - common: Refactor load_auth_image_internal(). - - - hisilicon: Remove uefi-tools in hikey and hikey960 documentation - - - intel: Modify non secure access function, BL31 address mapping, mailbox's - get_config_status, and stratix10 BL31 parameter handling - - intel: Remove un-needed checks for qspi driver r/w and s10 unused source code - - intel: Change all global sip function to static - - intel: Refactor common platform code - - intel: Create SiP service header file - - - - marvell: armada: scp_bl2: Allow loading up to 8 images - - marvell: comphy-a3700: Support SGMII COMPHY power off and fix USB3 - powering on when on lane 2 - - marvell: Consolidate console register calls - - - mediatek: mt8183: Protect 4GB~8GB dram memory, refine GIC driver for - low power scenarios, and switch PLL/CLKSQ/ck_off/axi_26m control to SPM - - - qemu: Update flash address map to keep FIP in secure FLASH0 - - - renesas: rcar_gen3: Update IPL and Secure Monitor Rev.2.0.6, update DDR - setting for H3, M3, M3N, change fixed destination address of BL31 and BL32, - add missing #{address,size}-cells into generated DT, pass DT to OpTee OS, - and move DDR drivers out of staging - - - rockchip: Make miniloader ddr_parameter handling optional, cleanup securing - of ddr regions, move secure init to separate file, use base+size for secure - ddr regions, bring TZRAM_SIZE values in lined, and prevent macro expansion - in paths - - - rpi: Move plat_helpers.S to common - - rpi3: gpio: Simplify GPIO setup - - rpi4: Skip UART initialisation - - - st: stm32m1: Use generic console_t data structure, remove second - QSPI flash instance, update for FMC2 pin muxing, and reduce MAX_XLAT_TABLES - to 4 - - - socionext: uniphier: Make on-chip SRAM and I/O register regions configurable - - socionext: uniphier: Make PSCI related, counter control, UART, pinmon, NAND - controller, and eMMC controller base addresses configurable - - socionext: uniphier: Change block_addressing flag and the return value type - of .is_usb_boot() to bool - - socionext: uniphier: Run BL33 at EL2, call uniphier_scp_is_running() only - when on-chip STM is supported, define PLAT_XLAT_TABLES_DYNAMIC only for BL2, - support read-only xlat tables, use enable_mmu() in common function, shrink - UNIPHIER_ROM_REGION_SIZE, prepare uniphier_soc_info() for next SoC, extend - boot device detection for future SoCs, make all BL images completely - position-independent, make uniphier_mmap_setup() work with PIE, pass SCP - base address as a function parameter, set buffer offset and length for - io_block dynamically, and use more mmap_add_dynamic_region() for loading - images - - - spd/trusty: Disable error messages seen during boot, allow gic base to be - specified with GICD_BASE, and allow getting trusty memsize from BL32_MEM_SIZE - instead of TSP_SEC_MEM_SIZE - - - ti: k3: common: Enable ARM cluster power down and rename device IDs to - be more consistent - - ti: k3: drivers: ti_sci: Put sequence number in coherent memory and - remove indirect structure of const data - - - xilinx: Move ipi mailbox svc to xilinx common - - xilinx: zynqmp: Use GIC framework for warm restart - - xilinx: zynqmp: pm: Move custom clock flags to typeflags, remove - CLK_TOPSW_LSBUS from invalid clock list and rename FPD WDT clock ID - - xilinx: versal: Increase OCM memory size for DEBUG builds and adjust - cpu clock, Move versal_def.h and versal_private to include directory - -- Tools - - sptool: Updated sptool to accommodate building secure partition packages. - -Resolved Issues -^^^^^^^^^^^^^^^ - -- Arm Architecture - - Fix crash dump for lower EL - -- BL-Specific - - Bug fix: Protect TSP prints with lock - - - Fix boot failures on some builds linked with ld.lld. - -- Build System - - Fix clang build if CC is not in the path. - - - Fix 'BL stage' comment for build macros - -- Code Quality - - coverity: Fix various MISRA violations including null pointer violations, - C issues in BL1/BL2/BL31 and FDT helper functions, using boolean essential, - type, and removing unnecessary header file and comparisons to LONG_MAX in - debugfs devfip - - - Based on coding guidelines, replace all `unsigned long` depending on if - fixed based on AArch32 or AArch64. - - - Unify type of "cpu_idx" and Platform specific defines across PSCI module. - -- Drivers - - auth: Necessary fix in drivers to upgrade to mbedtls-2.18.0 - - - delay_timer: Fix non-standard frequency issue in udelay - - - gicv3: Fix compiler dependent behavior - - gic600: Fix include ordering according to the coding style and power up sequence - -- Library Code - - el3_runtime: Fix stack pointer maintenance on EA handling path, - fixup 'cm_setup_context' prototype, and adds TPIDR_EL2 register - to the context save restore routines - - - libc: Fix SIZE_MAX on AArch32 - - - locks: T589: Fix insufficient ordering guarantees in bakery lock - - - pmf: Fix 'tautological-constant-compare' error, Make the runtime - instrumentation work on AArch32, and Simplify PMF helper macro - definitions across header files - - - xlat_tables_v2: Fix assembler warning of PLAT_RO_XLAT_TABLES - -- Platforms - - allwinner: Fix H6 GPIO and CCU memory map addresses and incorrect ARISC - code patch offset check - - - arm/a5ds: Correct system freq and Cache Writeback Granule, and cleanup - enable-method in devicetree - - - arm/fvp: Fix incorrect GIC mapping, BL31 load address and image size - for RESET_TO_BL31=1, topology description of cpus for DynamIQ based - FVP, and multithreaded FVP power domain tree - - arm/fvp: spm-mm: Correcting instructions to build SPM for FVP - - - arm/common: Fix ROTPK hash generation for ECDSA encryption, BL2 bug in - dynamic configuration initialisation, and current RECLAIM_INIT_CODE behavior - - - arm/rde1edge: Fix incorrect topology tree description - - - arm/sgi: Fix the incorrect check for SCMI channel ID - - - common: Flush dcache when storing timestamp - - - intel: Fix UEFI decompression issue, memory calibration, SMC SIP service, - mailbox config return status, mailbox driver logic, FPGA manager on - reconfiguration, and mailbox send_cmd issue - - - imx: Fix shift-overflow errors, the rdc memory region slot's offset, - multiple definition of ipc_handle, missing inclusion of cdefs.h, and - correct the SGIs that used for secure interrupt - - - mediatek: mt8183: Fix AARCH64 init fail on CPU0 - - - rockchip: Fix definition of struct param_ddr_usage - - - rpi4: Fix documentation of armstub config entry - - - st: Correct io possible NULL pointer dereference and device_size type, - nand xor_ecc.val assigned value, static analysis tool issues, and fix - incorrect return value and correctly check pwr-regulators node - - - xilinx: zynqmp: Correct syscnt freq for QEMU and fix clock models - and IDs of GEM-related clocks - -Known Issues -^^^^^^^^^^^^ - -- Build System - - dtb: DTB creation not supported when building on a Windows host. - - This step in the build process is skipped when running on a Windows host. A - known issue from the 1.6 release. - - - Intermittent assertion firing `ASSERT: services/spd/tspd/tspd_main.c:105` - -- Coverity - - Intermittent Race condition in Coverity Jenkins Build Job - -- Platforms - - arm/juno: System suspend from Linux does not function as documented in the - user guide - - Following the instructions provided in the user guide document does not - result in the platform entering system suspend state as expected. A message - relating to the hdlcd driver failing to suspend will be emitted on the - Linux terminal. - - - mediatek/mt6795: This platform does not build in this release - -Version 2.2 ------------ - -New Features -^^^^^^^^^^^^ - -- Architecture - - Enable Pointer Authentication (PAuth) support for Secure World - - Adds support for ARMv8.3-PAuth in BL1 SMC calls and - BL2U image for firmware updates. - - - Enable Memory Tagging Extension (MTE) support in both secure and non-secure - worlds - - - Adds support for the new Memory Tagging Extension arriving in - ARMv8.5. MTE support is now enabled by default on systems that - support it at EL0. - - To enable it at ELx for both the non-secure and the secure - world, the compiler flag ``CTX_INCLUDE_MTE_REGS`` includes register - saving and restoring when necessary in order to prevent information - leakage between the worlds. - - - Add support for Branch Target Identification (BTI) - -- Build System - - Modify FVP makefile for CPUs that support both AArch64/32 - - - AArch32: Allow compiling with soft-float toolchain - - - Makefile: Add default warning flags - - - Add Makefile check for PAuth and AArch64 - - - Add compile-time errors for HW_ASSISTED_COHERENCY flag - - - Apply compile-time check for AArch64-only CPUs - - - build_macros: Add mechanism to prevent bin generation. - - - Add support for default stack-protector flag - - - spd: opteed: Enable NS_TIMER_SWITCH - - - plat/arm: Skip BL2U if RESET_TO_SP_MIN flag is set - - - Add new build option to let each platform select which implementation of spinlocks - it wants to use - -- CPU Support - - DSU: Workaround for erratum 798953 and 936184 - - - Neoverse N1: Force cacheable atomic to near atomic - - Neoverse N1: Workaround for erratum 1073348, 1130799, 1165347, 1207823, - 1220197, 1257314, 1262606, 1262888, 1275112, 1315703, 1542419 - - - Neoverse Zeus: Apply the MSR SSBS instruction - - - cortex-Hercules/HerculesAE: Support added for Cortex-Hercules and - Cortex-HerculesAE CPUs - - cortex-Hercules/HerculesAE: Enable AMU for Cortex-Hercules and Cortex-HerculesAE - - - cortex-a76AE: Support added for Cortex-A76AE CPU - - cortex-a76: Workaround for erratum 1257314, 1262606, 1262888, 1275112, - 1286807 - - - cortex-a65/a65AE: Support added for Cortex-A65 and Cortex-A65AE CPUs - - cortex-a65: Enable AMU for Cortex-A65 - - - cortex-a55: Workaround for erratum 1221012 - - - cortex-a35: Workaround for erratum 855472 - - - cortex-a9: Workaround for erratum 794073 - -- Drivers - - console: Allow the console to register multiple times - - - delay: Timeout detection support - - - gicv3: Enabled multi-socket GIC redistributor frame discovery and migrated - ARM platforms to the new API - - - Adds ``gicv3_rdistif_probe`` function that delegates the responsibility - of discovering the corresponding redistributor base frame to each CPU - itself. - - - sbsa: Add SBSA watchdog driver - - - st/stm32_hash: Add HASH driver - - - ti/uart: Add an AArch32 variant - -- Library at ROM (romlib) - - Introduce BTI support in Library at ROM (romlib) - -- New Platforms Support - - amlogic: g12a: New platform support added for the S905X2 (G12A) platform - - amlogic: meson/gxl: New platform support added for Amlogic Meson - S905x (GXL) - - - arm/a5ds: New platform support added for A5 DesignStart - - - arm/corstone: New platform support added for Corstone-700 - - - intel: New platform support added for Agilex - - - mediatek: New platform support added for MediaTek mt8183 - - - qemu/qemu_sbsa: New platform support added for QEMU SBSA platform - - - renesas/rcar_gen3: plat: New platform support added for D3 - - - rockchip: New platform support added for px30 - - rockchip: New platform support added for rk3288 - - - rpi: New platform support added for Raspberry Pi 4 - -- Platforms - - arm/common: Introduce wrapper functions to setup secure watchdog - - - arm/fvp: Add Delay Timer driver to BL1 and BL31 and option for defining - platform DRAM2 base - - arm/fvp: Add Linux DTS files for 32 bit threaded FVPs - - - arm/n1sdp: Add code for DDR ECC enablement and BL33 copy to DDR, Initialise CNTFRQ - in Non Secure CNTBaseN - - - arm/juno: Use shared mbedtls heap between BL1 and BL2 and add basic support for - dynamic config - - - imx: Basic support for PicoPi iMX7D, rdc module init, caam module init, - aipstz init, IMX_SIP_GET_SOC_INFO, IMX_SIP_BUILDINFO added - - - intel: Add ncore ccu driver - - - mediatek/mt81*: Use new bl31_params_parse() helper - - - nvidia: tegra: Add support for multi console interface - - - qemu/qemu_sbsa: Adding memory mapping for both FLASH0/FLASH1 - - qemu: Added gicv3 support, new console interface in AArch32, and sub-platforms - - - renesas/rcar_gen3: plat: Add R-Car V3M support, new board revision for H3ULCB, DBSC4 - setting before self-refresh mode - - - socionext/uniphier: Support console based on multi-console - - - st: stm32mp1: Add OP-TEE, Avenger96, watchdog, LpDDR3, authentication support - and general SYSCFG management - - - ti/k3: common: Add support for J721E, Use coherent memory for shared data, Trap all - asynchronous bus errors to EL3 - - - xilinx/zynqmp: Add support for multi console interface, Initialize IPI table from - zynqmp_config_setup() - -- PSCI - - Adding new optional PSCI hook ``pwr_domain_on_finish_late`` - - This PSCI hook ``pwr_domain_on_finish_late`` is similar to - ``pwr_domain_on_finish`` but is guaranteed to be invoked when the - respective core and cluster are participating in coherency. - -- Security - - Speculative Store Bypass Safe (SSBS): Further enhance protection against Spectre - variant 4 by disabling speculative loads/stores (SPSR.SSBS bit) by default. - - - UBSAN support and handlers - - Adds support for the Undefined Behaviour sanitizer. There are two types of - support offered - minimalistic trapping support which essentially immediately - crashes on undefined behaviour and full support with full debug messages. - -- Tools - - cert_create: Add support for bigger RSA key sizes (3KB and 4KB), - previously the maximum size was 2KB. - - - fiptool: Add support to build fiptool on Windows. - - -Changed -^^^^^^^ - -- Architecture - - Refactor ARMv8.3 Pointer Authentication support code - - - backtrace: Strip PAC field when PAUTH is enabled - - - Prettify crash reporting output on AArch64. - - - Rework smc_unknown return code path in smc_handler - - Leverage the existing ``el3_exit()`` return routine for smc_unknown return - path rather than a custom set of instructions. - -- BL-Specific - - Invalidate dcache build option for BL2 entry at EL3 - - - Add missing support for BL2_AT_EL3 in XIP memory - -- Boot Flow - - Add helper to parse BL31 parameters (both versions) - - - Factor out cross-BL API into export headers suitable for 3rd party code - - - Introduce lightweight BL platform parameter library - -- Drivers - - auth: Memory optimization for Chain of Trust (CoT) description - - - bsec: Move bsec_mode_is_closed_device() service to platform - - - cryptocell: Move Cryptocell specific API into driver - - - gicv3: Prevent pending G1S interrupt from becoming G0 interrupt - - - mbedtls: Remove weak heap implementation - - - mmc: Increase delay between ACMD41 retries - - mmc: stm32_sdmmc2: Correctly manage block size - - mmc: stm32_sdmmc2: Manage max-frequency property from DT - - - synopsys/emmc: Do not change FIFO TH as this breaks some platforms - - synopsys: Update synopsys drivers to not rely on undefined overflow behaviour - - - ufs: Extend the delay after reset to wait for some slower chips - -- Platforms - - amlogic/meson/gxl: Remove BL2 dependency from BL31 - - - arm/common: Shorten the Firmware Update (FWU) process - - - arm/fvp: Remove GIC initialisation from secondary core cold boot - - - arm/sgm: Temporarily disable shared Mbed TLS heap for SGM - - - hisilicon: Update hisilicon drivers to not rely on undefined overflow behaviour - - - imx: imx8: Replace PLAT_IMX8* with PLAT_imx8*, remove duplicated linker symbols and - deprecated code include, keep only IRQ 32 unmasked, enable all power domain by default - - - marvell: Prevent SError accessing PCIe link, Switch to xlat_tables_v2, do not rely on - argument passed via smc, make sure that comphy init will use correct address - - - mediatek: mt8173: Refactor RTC and PMIC drivers - - mediatek: mt8173: Apply MULTI_CONSOLE framework - - - nvidia: Tegra: memctrl_v2: fix "overflow before widen" coverity issue - - - qemu: Simplify the image size calculation, Move and generalise FDT PSCI fixup, move - gicv2 codes to separate file - - - renesas/rcar_gen3: Convert to multi-console API, update QoS setting, Update IPL and - Secure Monitor Rev2.0.4, Change to restore timer counter value at resume, Update DDR - setting rev.0.35, qos: change subslot cycle, Change periodic write DQ training option. - - - rockchip: Allow SOCs with undefined wfe check bits, Streamline and complete UARTn_BASE - macros, drop rockchip-specific imported linker symbols for bl31, Disable binary generation - for all SOCs, Allow console device to be set by DTB, Use new bl31_params_parse functions - - - rpi/rpi3: Move shared rpi3 files into common directory - - - socionext/uniphier: Set CONSOLE_FLAG_TRANSLATE_CRLF and clean up console driver - - socionext/uniphier: Replace DIV_ROUND_UP() with div_round_up() from utils_def.h - - - st/stm32mp: Split stm32mp_io_setup function, move stm32_get_gpio_bank_clock() to private - file, correctly handle Clock Spreading Generator, move oscillator functions to generic file, - realign device tree files with internal devs, enable RTCAPB clock for dual-core chips, use a - common function to check spinlock is available, move check_header() to common code - - - ti/k3: Enable SEPARATE_CODE_AND_RODATA by default, Remove shared RAM space, - Drop _ADDRESS from K3_USART_BASE to match other defines, Remove MSMC port - definitions, Allow USE_COHERENT_MEM for K3, Set L2 latency on A72 cores - -- PSCI - - PSCI: Lookup list of parent nodes to lock only once - -- Secure Partition Manager (SPM): SPCI Prototype - - Fix service UUID lookup - - - Adjust size of virtual address space per partition - - - Refactor xlat context creation - - - Move shim layer to TTBR1_EL1 - - - Ignore empty regions in resource description - -- Security - - Refactor SPSR initialisation code - - - SMMUv3: Abort DMA transactions - - For security DMA should be blocked at the SMMU by default unless explicitly - enabled for a device. SMMU is disabled after reset with all streams bypassing - the SMMU, and abortion of all incoming transactions implements a default deny - policy on reset. - - Moves ``bl1_platform_setup()`` function from arm_bl1_setup.c to FVP platforms' - fvp_bl1_setup.c and fvp_ve_bl1_setup.c files. - -- Tools - - cert_create: Remove RSA PKCS#1 v1.5 support - - -Resolved Issues -^^^^^^^^^^^^^^^ - -- Architecture - - Fix the CAS spinlock implementation by adding a missing DSB in ``spin_unlock()`` - - - AArch64: Fix SCTLR bit definitions - - Removes incorrect ``SCTLR_V_BIT`` definition and adds definitions for - ARMv8.3-Pauth `EnIB`, `EnDA` and `EnDB` bits. - - - Fix restoration of PAuth context - - Replace call to ``pauth_context_save()`` with ``pauth_context_restore()`` in - case of unknown SMC call. - -- BL-Specific Issues - - Fix BL31 crash reporting on AArch64 only platforms - -- Build System - - Remove several warnings reported with W=2 and W=1 - -- Code Quality Issues - - SCTLR and ACTLR are 32-bit for AArch32 and 64-bit for AArch64 - - Unify type of "cpu_idx" across PSCI module. - - Assert if power level value greater then PSCI_INVALID_PWR_LVL - - Unsigned long should not be used as per coding guidelines - - Reduce the number of memory leaks in cert_create - - Fix type of cot_desc_ptr - - Use explicit-width data types in AAPCS parameter structs - - Add python configuration for editorconfig - - BL1: Fix type consistency - - - Enable -Wshift-overflow=2 to check for undefined shift behavior - - Updated upstream platforms to not rely on undefined overflow behaviour - -- Coverity Quality Issues - - Remove GGC ignore -Warray-bounds - - Fix Coverity #261967, Infinite loop - - Fix Coverity #343017, Missing unlock - - Fix Coverity #343008, Side affect in assertion - - Fix Coverity #342970, Uninitialized scalar variable - -- CPU Support - - cortex-a12: Fix MIDR mask - -- Drivers - - console: Remove Arm console unregister on suspend - - - gicv3: Fix support for full SPI range - - - scmi: Fix wrong payload length - -- Library Code - - libc: Fix sparse warning for __assert() - - - libc: Fix memchr implementation - -- Platforms - - rpi: rpi3: Fix compilation error when stack protector is enabled - - - socionext/uniphier: Fix compilation fail for SPM support build config - - - st/stm32mp1: Fix TZC400 configuration against non-secure DDR - - - ti/k3: common: Fix RO data area size calculation - -- Security - - AArch32: Disable Secure Cycle Counter - - Changes the implementation for disabling Secure Cycle Counter. - For ARMv8.5 the counter gets disabled by setting ``SDCR.SCCD`` bit on - CPU cold/warm boot. For the earlier architectures PMCR register is - saved/restored on secure world entry/exit from/to Non-secure state, - and cycle counting gets disabled by setting PMCR.DP bit. - - AArch64: Disable Secure Cycle Counter - - For ARMv8.5 the counter gets disabled by setting ``MDCR_El3.SCCD`` bit on - CPU cold/warm boot. For the earlier architectures PMCR_EL0 register is - saved/restored on secure world entry/exit from/to Non-secure state, - and cycle counting gets disabled by setting PMCR_EL0.DP bit. - -Deprecations -^^^^^^^^^^^^ - -- Common Code - - Remove MULTI_CONSOLE_API flag and references to it - - - Remove deprecated `plat_crash_console_*` - - - Remove deprecated interfaces `get_afflvl_shift`, `mpidr_mask_lower_afflvls`, `eret` - - - AARCH32/AARCH64 macros are now deprecated in favor of ``__aarch64__`` - - - ``__ASSEMBLY__`` macro is now deprecated in favor of ``__ASSEMBLER__`` - -- Drivers - - console: Removed legacy console API - - console: Remove deprecated finish_console_register - - - tzc: Remove deprecated types `tzc_action_t` and `tzc_region_attributes_t` - -- Secure Partition Manager (SPM): - - Prototype SPCI-based SPM (services/std_svc/spm) will be replaced with alternative - methods of secure partitioning support. - -Known Issues -^^^^^^^^^^^^ - -- Build System Issues - - dtb: DTB creation not supported when building on a Windows host. - - This step in the build process is skipped when running on a Windows host. A - known issue from the 1.6 release. - -- Platform Issues - - arm/juno: System suspend from Linux does not function as documented in the - user guide - - Following the instructions provided in the user guide document does not - result in the platform entering system suspend state as expected. A message - relating to the hdlcd driver failing to suspend will be emitted on the - Linux terminal. - - - mediatek/mt6795: This platform does not build in this release - -Version 2.1 ------------ - -New Features -^^^^^^^^^^^^ - -- Architecture - - Support for ARMv8.3 pointer authentication in the normal and secure worlds - - The use of pointer authentication in the normal world is enabled whenever - architectural support is available, without the need for additional build - flags. - - Use of pointer authentication in the secure world remains an - experimental configuration at this time. Using both the ``ENABLE_PAUTH`` - and ``CTX_INCLUDE_PAUTH_REGS`` build flags, pointer authentication can be - enabled in EL3 and S-EL1/0. - - See the :ref:`Firmware Design` document for additional details on the use - of pointer authentication. - - - Enable Data Independent Timing (DIT) in EL3, where supported - -- Build System - - Support for BL-specific build flags - - - Support setting compiler target architecture based on ``ARM_ARCH_MINOR`` - build option. - - - New ``RECLAIM_INIT_CODE`` build flag: - - A significant amount of the code used for the initialization of BL31 is - not needed again after boot time. In order to reduce the runtime memory - footprint, the memory used for this code can be reclaimed after - initialization. - - Certain boot-time functions were marked with the ``__init`` attribute to - enable this reclamation. - -- CPU Support - - cortex-a76: Workaround for erratum 1073348 - - cortex-a76: Workaround for erratum 1220197 - - cortex-a76: Workaround for erratum 1130799 - - - cortex-a75: Workaround for erratum 790748 - - cortex-a75: Workaround for erratum 764081 - - - cortex-a73: Workaround for erratum 852427 - - cortex-a73: Workaround for erratum 855423 - - - cortex-a57: Workaround for erratum 817169 - - cortex-a57: Workaround for erratum 814670 - - - cortex-a55: Workaround for erratum 903758 - - cortex-a55: Workaround for erratum 846532 - - cortex-a55: Workaround for erratum 798797 - - cortex-a55: Workaround for erratum 778703 - - cortex-a55: Workaround for erratum 768277 - - - cortex-a53: Workaround for erratum 819472 - - cortex-a53: Workaround for erratum 824069 - - cortex-a53: Workaround for erratum 827319 - - - cortex-a17: Workaround for erratum 852423 - - cortex-a17: Workaround for erratum 852421 - - - cortex-a15: Workaround for erratum 816470 - - cortex-a15: Workaround for erratum 827671 - -- Documentation - - Exception Handling Framework documentation - - - Library at ROM (romlib) documentation - - - RAS framework documentation - - - Coding Guidelines document - -- Drivers - - ccn: Add API for setting and reading node registers - - Adds ``ccn_read_node_reg`` function - - Adds ``ccn_write_node_reg`` function - - - partition: Support MBR partition entries - - - scmi: Add ``plat_css_get_scmi_info`` function - - Adds a new API ``plat_css_get_scmi_info`` which lets the platform - register a platform-specific instance of ``scmi_channel_plat_info_t`` and - remove the default values - - - tzc380: Add TZC-380 TrustZone Controller driver - - - tzc-dmc620: Add driver to manage the TrustZone Controller within the - DMC-620 Dynamic Memory Controller - -- Library at ROM (romlib) - - Add platform-specific jump table list - - - Allow patching of romlib functions - - This change allows patching of functions in the romlib. This can be done by - adding "patch" at the end of the jump table entry for the function that - needs to be patched in the file jmptbl.i. - -- Library Code - - Support non-LPAE-enabled MMU tables in AArch32 - - - mmio: Add ``mmio_clrsetbits_16`` function - - 16-bit variant of ``mmio_clrsetbits`` - - - object_pool: Add Object Pool Allocator - - Manages object allocation using a fixed-size static array - - Adds ``pool_alloc`` and ``pool_alloc_n`` functions - - Does not provide any functions to free allocated objects (by design) - - - libc: Added ``strlcpy`` function - - - libc: Import ``strrchr`` function from FreeBSD - - - xlat_tables: Add support for ARMv8.4-TTST - - - xlat_tables: Support mapping regions without an explicitly specified VA - -- Math - - Added softudiv macro to support software division - -- Memory Partitioning And Monitoring (MPAM) - - Enabled MPAM EL2 traps (``MPAMHCR_EL2`` and ``MPAM_EL2``) - -- Platforms - - amlogic: Add support for Meson S905 (GXBB) - - - arm/fvp_ve: Add support for FVP Versatile Express platform - - - arm/n1sdp: Add support for Neoverse N1 System Development platform - - - arm/rde1edge: Add support for Neoverse E1 platform - - - arm/rdn1edge: Add support for Neoverse N1 platform - - - arm: Add support for booting directly to Linux without an intermediate - loader (AArch32) - - - arm/juno: Enable new CPU errata workarounds for A53 and A57 - - - arm/juno: Add romlib support - - Building a combined BL1 and ROMLIB binary file with the correct page - alignment is now supported on the Juno platform. When ``USE_ROMLIB`` is set - for Juno, it generates the combined file ``bl1_romlib.bin`` which needs to - be used instead of bl1.bin. - - - intel/stratix: Add support for Intel Stratix 10 SoC FPGA platform - - - marvell: Add support for Armada-37xx SoC platform - - - nxp: Add support for i.MX8M and i.MX7 Warp7 platforms - - - renesas: Add support for R-Car Gen3 platform - - - xilinx: Add support for Versal ACAP platforms - -- Position-Independent Executable (PIE) - - PIE support has initially been added to BL31. The ``ENABLE_PIE`` build flag is - used to enable or disable this functionality as required. - -- Secure Partition Manager - - New SPM implementation based on SPCI Alpha 1 draft specification - - A new version of SPM has been implemented, based on the SPCI (Secure - Partition Client Interface) and SPRT (Secure Partition Runtime) draft - specifications. - - The new implementation is a prototype that is expected to undergo intensive - rework as the specifications change. It has basic support for multiple - Secure Partitions and Resource Descriptions. - - The older version of SPM, based on MM (ARM Management Mode Interface - Specification), is still present in the codebase. A new build flag, - ``SPM_MM`` has been added to allow selection of the desired implementation. - This flag defaults to 1, selecting the MM-based implementation. - -- Security - - Spectre Variant-1 mitigations (``CVE-2017-5753``) - - - Use Speculation Store Bypass Safe (SSBS) functionality where available - - Provides mitigation against ``CVE-2018-19440`` (Not saving x0 to x3 - registers can leak information from one Normal World SMC client to another) - - -Changed -^^^^^^^ - -- Build System - - Warning levels are now selectable with ``W=<1,2,3>`` - - - Removed unneeded include paths in PLAT_INCLUDES - - - "Warnings as errors" (Werror) can be disabled using ``E=0`` - - - Support totally quiet output with ``-s`` flag - - - Support passing options to checkpatch using ``CHECKPATCH_OPTS=<opts>`` - - - Invoke host compiler with ``HOSTCC / HOSTCCFLAGS`` instead of ``CC / CFLAGS`` - - - Make device tree pre-processing similar to U-boot/Linux by: - - Creating separate ``CPPFLAGS`` for DT preprocessing so that compiler - options specific to it can be accommodated. - - Replacing ``CPP`` with ``PP`` for DT pre-processing - -- CPU Support - - Errata report function definition is now mandatory for CPU support files - - CPU operation files must now define a ``<name>_errata_report`` function to - print errata status. This is no longer a weak reference. - -- Documentation - - Migrated some content from GitHub wiki to ``docs/`` directory - - - Security advisories now have CVE links - - - Updated copyright guidelines - -- Drivers - - console: The ``MULTI_CONSOLE_API`` framework has been rewritten in C - - - console: Ported multi-console driver to AArch32 - - - gic: Remove 'lowest priority' constants - - Removed ``GIC_LOWEST_SEC_PRIORITY`` and ``GIC_LOWEST_NS_PRIORITY``. - Platforms should define these if required, or instead determine the correct - priority values at runtime. - - - delay_timer: Check that the Generic Timer extension is present - - - mmc: Increase command reply timeout to 10 milliseconds - - - mmc: Poll eMMC device status to ensure ``EXT_CSD`` command completion - - - mmc: Correctly check return code from ``mmc_fill_device_info`` - -- External Libraries - - - libfdt: Upgraded from 1.4.2 to 1.4.6-9 - - - mbed TLS: Upgraded from 2.12 to 2.16 - - This change incorporates fixes for security issues that should be reviewed - to determine if they are relevant for software implementations using - Trusted Firmware-A. See the `mbed TLS releases`_ page for details on - changes from the 2.12 to the 2.16 release. - -- Library Code - - compiler-rt: Updated ``lshrdi3.c`` and ``int_lib.h`` with changes from - LLVM master branch (r345645) - - - cpu: Updated macro that checks need for ``CVE-2017-5715`` mitigation - - - libc: Made setjmp and longjmp C standard compliant - - - libc: Allowed overriding the default libc (use ``OVERRIDE_LIBC``) - - - libc: Moved setjmp and longjmp to the ``libc/`` directory - -- Platforms - - Removed Mbed TLS dependency from plat_bl_common.c - - - arm: Removed unused ``ARM_MAP_BL_ROMLIB`` macro - - - arm: Removed ``ARM_BOARD_OPTIMISE_MEM`` feature and build flag - - - arm: Moved several components into ``drivers/`` directory - - This affects the SDS, SCP, SCPI, MHU and SCMI components - - - arm/juno: Increased maximum BL2 image size to ``0xF000`` - - This change was required to accommodate a larger ``libfdt`` library - -- SCMI - - Optimized bakery locks when hardware-assisted coherency is enabled using the - ``HW_ASSISTED_COHERENCY`` build flag - -- SDEI - - Added support for unconditionally resuming secure world execution after - |SDEI| event processing completes - - |SDEI| interrupts, although targeting EL3, occur on behalf of the non-secure - world, and may have higher priority than secure world - interrupts. Therefore they might preempt secure execution and yield - execution to the non-secure |SDEI| handler. Upon completion of |SDEI| event - handling, resume secure execution if it was preempted. - -- Translation Tables (XLAT) - - Dynamically detect need for ``Common not Private (TTBRn_ELx.CnP)`` bit - - Properly handle the case where ``ARMv8.2-TTCNP`` is implemented in a CPU - that does not implement all mandatory v8.2 features (and so must claim to - implement a lower architecture version). - - -Resolved Issues -^^^^^^^^^^^^^^^ - -- Architecture - - Incorrect check for SSBS feature detection - - - Unintentional register clobber in AArch32 reset_handler function - -- Build System - - Dependency issue during DTB image build - - - Incorrect variable expansion in Arm platform makefiles - - - Building on Windows with verbose mode (``V=1``) enabled is broken - - - AArch32 compilation flags is missing ``$(march32-directive)`` - -- BL-Specific Issues - - bl2: ``uintptr_t is not defined`` error when ``BL2_IN_XIP_MEM`` is defined - - - bl2: Missing prototype warning in ``bl2_arch_setup`` - - - bl31: Omission of Global Offset Table (GOT) section - -- Code Quality Issues - - Multiple MISRA compliance issues - - - Potential NULL pointer dereference (Coverity-detected) - -- Drivers - - mmc: Local declaration of ``scr`` variable causes a cache issue when - invalidating after the read DMA transfer completes - - - mmc: ``ACMD41`` does not send voltage information during initialization, - resulting in the command being treated as a query. This prevents the - command from initializing the controller. - - - mmc: When checking device state using ``mmc_device_state()`` there are no - retries attempted in the event of an error - - - ccn: Incorrect Region ID calculation for RN-I nodes - - - console: ``Fix MULTI_CONSOLE_API`` when used as a crash console - - - partition: Improper NULL checking in gpt.c - - - partition: Compilation failure in ``VERBOSE`` mode (``V=1``) - -- Library Code - - common: Incorrect check for Address Authentication support - - - xlat: Fix XLAT_V1 / XLAT_V2 incompatibility - - The file ``arm_xlat_tables.h`` has been renamed to ``xlat_tables_compat.h`` - and has been moved to a common folder. This header can be used to guarantee - compatibility, as it includes the correct header based on - ``XLAT_TABLES_LIB_V2``. - - - xlat: armclang unused-function warning on ``xlat_clean_dcache_range`` - - - xlat: Invalid ``mm_cursor`` checks in ``mmap_add`` and ``mmap_add_ctx`` - - - sdei: Missing ``context.h`` header - -- Platforms - - common: Missing prototype warning for ``plat_log_get_prefix`` - - - arm: Insufficient maximum BL33 image size - - - arm: Potential memory corruption during BL2-BL31 transition - - On Arm platforms, the BL2 memory can be overlaid by BL31/BL32. The memory - descriptors describing the list of executable images are created in BL2 - R/W memory, which could be possibly corrupted later on by BL31/BL32 due - to overlay. This patch creates a reserved location in SRAM for these - descriptors and are copied over by BL2 before handing over to next BL - image. - - - juno: Invalid behaviour when ``CSS_USE_SCMI_SDS_DRIVER`` is not set - - In ``juno_pm.c`` the ``css_scmi_override_pm_ops`` function was used - regardless of whether the build flag was set. The original behaviour has - been restored in the case where the build flag is not set. - -- Tools - - fiptool: Incorrect UUID parsing of blob parameters - - - doimage: Incorrect object rules in Makefile - - -Deprecations -^^^^^^^^^^^^ - -- Common Code - - ``plat_crash_console_init`` function - - - ``plat_crash_console_putc`` function - - - ``plat_crash_console_flush`` function - - - ``finish_console_register`` macro - -- AArch64-specific Code - - helpers: ``get_afflvl_shift`` - - - helpers: ``mpidr_mask_lower_afflvls`` - - - helpers: ``eret`` - -- Secure Partition Manager (SPM) - - Boot-info structure - - -Known Issues -^^^^^^^^^^^^ - -- Build System Issues - - dtb: DTB creation not supported when building on a Windows host. - - This step in the build process is skipped when running on a Windows host. A - known issue from the 1.6 release. - -- Platform Issues - - arm/juno: System suspend from Linux does not function as documented in the - user guide - - Following the instructions provided in the user guide document does not - result in the platform entering system suspend state as expected. A message - relating to the hdlcd driver failing to suspend will be emitted on the - Linux terminal. - - - arm/juno: The firmware update use-cases do not work with motherboard - firmware version < v1.5.0 (the reset reason is not preserved). The Linaro - 18.04 release has MB v1.4.9. The MB v1.5.0 is available in Linaro 18.10 - release. - - - mediatek/mt6795: This platform does not build in this release - -Version 2.0 ------------ - -New Features -^^^^^^^^^^^^ - -- Removal of a number of deprecated APIs - - - A new Platform Compatibility Policy document has been created which - references a wiki page that maintains a listing of deprecated - interfaces and the release after which they will be removed. - - - All deprecated interfaces except the MULTI_CONSOLE_API have been removed - from the code base. - - - Various Arm and partner platforms have been updated to remove the use of - removed APIs in this release. - - - This release is otherwise unchanged from 1.6 release - -Issues resolved since last release -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -- No issues known at 1.6 release resolved in 2.0 release - -Known Issues -^^^^^^^^^^^^ - -- DTB creation not supported when building on a Windows host. This step in the - build process is skipped when running on a Windows host. Known issue from - 1.6 version. - -- As a result of removal of deprecated interfaces the Nvidia Tegra, Marvell - Armada 8K and MediaTek MT6795 platforms do not build in this release. - Also MediaTek MT8173, NXP QorIQ LS1043A, NXP i.MX8QX, NXP i.MX8QMa, - Rockchip RK3328, Rockchip RK3368 and Rockchip RK3399 platforms have not been - confirmed to be working after the removal of the deprecated interfaces - although they do build. - -Version 1.6 ------------ - -New Features -^^^^^^^^^^^^ - -- Addressing Speculation Security Vulnerabilities - - - Implement static workaround for CVE-2018-3639 for AArch32 and AArch64 - - - Add support for dynamic mitigation for CVE-2018-3639 - - - Implement dynamic mitigation for CVE-2018-3639 on Cortex-A76 - - - Ensure |SDEI| handler executes with CVE-2018-3639 mitigation enabled - -- Introduce RAS handling on AArch64 - - - Some RAS extensions are mandatory for Armv8.2 CPUs, with others - mandatory for Armv8.4 CPUs however, all extensions are also optional - extensions to the base Armv8.0 architecture. - - - The Armv8 RAS Extensions introduced Standard Error Records which are a - set of standard registers to configure RAS node policy and allow RAS - Nodes to record and expose error information for error handling agents. - - - Capabilities are provided to support RAS Node enumeration and iteration - along with individual interrupt registrations and fault injections - support. - - - Introduce handlers for Uncontainable errors, Double Faults and EL3 - External Aborts - -- Enable Memory Partitioning And Monitoring (MPAM) for lower EL's - - - Memory Partitioning And Monitoring is an Armv8.4 feature that enables - various memory system components and resources to define partitions. - Software running at various ELs can then assign themselves to the - desired partition to control their performance aspects. - - - When ENABLE_MPAM_FOR_LOWER_ELS is set to 1, EL3 allows - lower ELs to access their own MPAM registers without trapping to EL3. - This patch however, doesn't make use of partitioning in EL3; platform - initialisation code should configure and use partitions in EL3 if - required. - -- Introduce ROM Lib Feature - - - Support combining several libraries into a self-called "romlib" image, - that may be shared across images to reduce memory footprint. The romlib - image is stored in ROM but is accessed through a jump-table that may be - stored in read-write memory, allowing for the library code to be patched. - -- Introduce Backtrace Feature - - - This function displays the backtrace, the current EL and security state - to allow a post-processing tool to choose the right binary to interpret - the dump. - - - Print backtrace in assert() and panic() to the console. - -- Code hygiene changes and alignment with MISRA C-2012 guideline with fixes - addressing issues complying to the following rules: - - - MISRA rules 4.9, 5.1, 5.3, 5.7, 8.2-8.5, 8.8, 8.13, 9.3, 10.1, - 10.3-10.4, 10.8, 11.3, 11.6, 12.1, 14.4, 15.7, 16.1-16.7, 17.7-17.8, - 20.7, 20.10, 20.12, 21.1, 21.15, 22.7 - - - Clean up the usage of void pointers to access symbols - - - Increase usage of static qualifier to locally used functions and data - - - Migrated to use of u_register_t for register read/write to better - match AArch32 and AArch64 type sizes - - - Use int-ll64 for both AArch32 and AArch64 to assist in consistent - format strings between architectures - - - Clean up TF-A libc by removing non arm copyrighted implementations - and replacing them with modified FreeBSD and SCC implementations - -- Various changes to support Clang linker and assembler - - - The clang assembler/preprocessor is used when Clang is selected. However, - the clang linker is not used because it is unable to link TF-A objects - due to immaturity of clang linker functionality at this time. - -- Refactor support APIs into Libraries - - - Evolve libfdt, mbed TLS library and standard C library sources as - proper libraries that TF-A may be linked against. - -- CPU Enhancements - - - Add CPU support for Cortex-Ares and Cortex-A76 - - - Add AMU support for Cortex-Ares - - - Add initial CPU support for Cortex-Deimos - - - Add initial CPU support for Cortex-Helios - - - Implement dynamic mitigation for CVE-2018-3639 on Cortex-A76 - - - Implement Cortex-Ares erratum 1043202 workaround - - - Implement DSU erratum 936184 workaround - - - Check presence of fix for errata 843419 in Cortex-A53 - - - Check presence of fix for errata 835769 in Cortex-A53 - -- Translation Tables Enhancements - - - The xlat v2 library has been refactored in order to be reused by - different TF components at different EL's including the addition of EL2. - Some refactoring to make the code more generic and less specific to TF, - in order to reuse the library outside of this project. - -- SPM Enhancements - - - General cleanups and refactoring to pave the way to multiple partitions - support - -- SDEI Enhancements - - - Allow platforms to define explicit events - - - Determine client EL from NS context's SCR_EL3 - - - Make dispatches synchronous - - - Introduce jump primitives for BL31 - - - Mask events after CPU wakeup in |SDEI| dispatcher to conform to the - specification - -- Misc TF-A Core Common Code Enhancements - - - Add support for eXecute In Place (XIP) memory in BL2 - - - Add support for the SMC Calling Convention 2.0 - - - Introduce External Abort handling on AArch64 - External Abort routed to EL3 was reported as an unhandled exception - and caused a panic. This change enables Trusted Firmware-A to handle - External Aborts routed to EL3. - - - Save value of ACTLR_EL1 implementation-defined register in the CPU - context structure rather than forcing it to 0. - - - Introduce ARM_LINUX_KERNEL_AS_BL33 build option, which allows BL31 to - directly jump to a Linux kernel. This makes for a quicker and simpler - boot flow, which might be useful in some test environments. - - - Add dynamic configurations for BL31, BL32 and BL33 enabling support for - Chain of Trust (COT). - - - Make TF UUID RFC 4122 compliant - -- New Platform Support - - - Arm SGI-575 - - - Arm SGM-775 - - - Allwinner sun50i_64 - - - Allwinner sun50i_h6 - - - NXP QorIQ LS1043A - - - NXP i.MX8QX - - - NXP i.MX8QM - - - NXP i.MX7Solo WaRP7 - - - TI K3 - - - Socionext Synquacer SC2A11 - - - Marvell Armada 8K - - - STMicroelectronics STM32MP1 - -- Misc Generic Platform Common Code Enhancements - - - Add MMC framework that supports both eMMC and SD card devices - -- Misc Arm Platform Common Code Enhancements - - - Demonstrate PSCI MEM_PROTECT from el3_runtime - - - Provide RAS support - - - Migrate AArch64 port to the multi console driver. The old API is - deprecated and will eventually be removed. - - - Move BL31 below BL2 to enable BL2 overlay resulting in changes in the - layout of BL images in memory to enable more efficient use of available - space. - - - Add cpp build processing for dtb that allows processing device tree - with external includes. - - - Extend FIP io driver to support multiple FIP devices - - - Add support for SCMI AP core configuration protocol v1.0 - - - Use SCMI AP core protocol to set the warm boot entrypoint - - - Add support to Mbed TLS drivers for shared heap among different - BL images to help optimise memory usage - - - Enable non-secure access to UART1 through a build option to support - a serial debug port for debugger connection - -- Enhancements for Arm Juno Platform - - - Add support for TrustZone Media Protection 1 (TZMP1) - -- Enhancements for Arm FVP Platform - - - Dynamic_config: remove the FVP dtb files - - - Set DYNAMIC_WORKAROUND_CVE_2018_3639=1 on FVP by default - - - Set the ability to dynamically disable Trusted Boot Board - authentication to be off by default with DYN_DISABLE_AUTH - - - Add librom enhancement support in FVP - - - Support shared Mbed TLS heap between BL1 and BL2 that allow a - reduction in BL2 size for FVP - -- Enhancements for Arm SGI/SGM Platform - - - Enable ARM_PLAT_MT flag for SGI-575 - - - Add dts files to enable support for dynamic config - - - Add RAS support - - - Support shared Mbed TLS heap for SGI and SGM between BL1 and BL2 - -- Enhancements for Non Arm Platforms - - - Raspberry Pi Platform - - - Hikey Platforms - - - Xilinx Platforms - - - QEMU Platform - - - Rockchip rk3399 Platform - - - TI Platforms - - - Socionext Platforms - - - Allwinner Platforms - - - NXP Platforms - - - NVIDIA Tegra Platform - - - Marvell Platforms - - - STMicroelectronics STM32MP1 Platform - -Issues resolved since last release -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -- No issues known at 1.5 release resolved in 1.6 release - -Known Issues -^^^^^^^^^^^^ - -- DTB creation not supported when building on a Windows host. This step in the - build process is skipped when running on a Windows host. Known issue from - 1.5 version. - -Version 1.5 ------------ - -New features -^^^^^^^^^^^^ - -- Added new firmware support to enable RAS (Reliability, Availability, and - Serviceability) functionality. - - - Secure Partition Manager (SPM): A Secure Partition is a software execution - environment instantiated in S-EL0 that can be used to implement simple - management and security services. The SPM is the firmware component that - is responsible for managing a Secure Partition. - - - SDEI dispatcher: Support for interrupt-based |SDEI| events and all - interfaces as defined by the |SDEI| specification v1.0, see - `SDEI Specification`_ - - - Exception Handling Framework (EHF): Framework that allows dispatching of - EL3 interrupts to their registered handlers which are registered based on - their priorities. Facilitates firmware-first error handling policy where - asynchronous exceptions may be routed to EL3. - - Integrated the TSPD with EHF. - -- Updated PSCI support: - - - Implemented PSCI v1.1 optional features `MEM_PROTECT` and `SYSTEM_RESET2`. - The supported PSCI version was updated to v1.1. - - - Improved PSCI STAT timestamp collection, including moving accounting for - retention states to be inside the locks and fixing handling of wrap-around - when calculating residency in AArch32 execution state. - - - Added optional handler for early suspend that executes when suspending to - a power-down state and with data caches enabled. - - This may provide a performance improvement on platforms where it is safe - to perform some or all of the platform actions from `pwr_domain_suspend` - with the data caches enabled. - -- Enabled build option, BL2_AT_EL3, for BL2 to allow execution at EL3 without - any dependency on TF BL1. - - This allows platforms which already have a non-TF Boot ROM to directly load - and execute BL2 and subsequent BL stages without need for BL1. This was not - previously possible because BL2 executes at S-EL1 and cannot jump straight to - EL3. - -- Implemented support for SMCCC v1.1, including `SMCCC_VERSION` and - `SMCCC_ARCH_FEATURES`. - - Additionally, added support for `SMCCC_VERSION` in PSCI features to enable - discovery of the SMCCC version via PSCI feature call. - -- Added Dynamic Configuration framework which enables each of the boot loader - stages to be dynamically configured at runtime if required by the platform. - The boot loader stage may optionally specify a firmware configuration file - and/or hardware configuration file that can then be shared with the next boot - loader stage. - - Introduced a new BL handover interface that essentially allows passing of 4 - arguments between the different BL stages. - - Updated cert_create and fip_tool to support the dynamic configuration files. - The COT also updated to support these new files. - -- Code hygiene changes and alignment with MISRA guideline: - - - Fix use of undefined macros. - - - Achieved compliance with Mandatory MISRA coding rules. - - - Achieved compliance for following Required MISRA rules for the default - build configurations on FVP and Juno platforms : 7.3, 8.3, 8.4, 8.5 and - 8.8. - -- Added support for Armv8.2-A architectural features: - - - Updated translation table set-up to set the CnP (Common not Private) bit - for secure page tables so that multiple PEs in the same Inner Shareable - domain can use the same translation table entries for a given stage of - translation in a particular translation regime. - - - Extended the supported values of ID_AA64MMFR0_EL1.PARange to include the - 52-bit Physical Address range. - - - Added support for the Scalable Vector Extension to allow Normal world - software to access SVE functionality but disable access to SVE, SIMD and - floating point functionality from the Secure world in order to prevent - corruption of the Z-registers. - -- Added support for Armv8.4-A architectural feature Activity Monitor Unit (AMU) - extensions. - - In addition to the v8.4 architectural extension, AMU support on Cortex-A75 - was implemented. - -- Enhanced OP-TEE support to enable use of pageable OP-TEE image. The Arm - standard platforms are updated to load up to 3 images for OP-TEE; header, - pager image and paged image. - - The chain of trust is extended to support the additional images. - -- Enhancements to the translation table library: - - - Introduced APIs to get and set the memory attributes of a region. - - - Added support to manage both privilege levels in translation regimes that - describe translations for 2 Exception levels, specifically the EL1&0 - translation regime, and extended the memory map region attributes to - include specifying Non-privileged access. - - - Added support to specify the granularity of the mappings of each region, - for instance a 2MB region can be specified to be mapped with 4KB page - tables instead of a 2MB block. - - - Disabled the higher VA range to avoid unpredictable behaviour if there is - an attempt to access addresses in the higher VA range. - - - Added helpers for Device and Normal memory MAIR encodings that align with - the Arm Architecture Reference Manual for Armv8-A (Arm DDI0487B.b). - - - Code hygiene including fixing type length and signedness of constants, - refactoring of function to enable the MMU, removing all instances where - the virtual address space is hardcoded and added comments that document - alignment needed between memory attributes and attributes specified in - TCR_ELx. - -- Updated GIC support: - - - Introduce new APIs for GICv2 and GICv3 that provide the capability to - specify interrupt properties rather than list of interrupt numbers alone. - The Arm platforms and other upstream platforms are migrated to use - interrupt properties. - - - Added helpers to save / restore the GICv3 context, specifically the - Distributor and Redistributor contexts and architectural parts of the ITS - power management. The Distributor and Redistributor helpers also support - the implementation-defined part of GIC-500 and GIC-600. - - Updated the Arm FVP platform to save / restore the GICv3 context on system - suspend / resume as an example of how to use the helpers. - - Introduced a new TZC secured DDR carve-out for use by Arm platforms for - storing EL3 runtime data such as the GICv3 register context. - -- Added support for Armv7-A architecture via build option ARM_ARCH_MAJOR=7. - This includes following features: - - - Updates GICv2 driver to manage GICv1 with security extensions. - - - Software implementation for 32bit division. - - - Enabled use of generic timer for platforms that do not set - ARM_CORTEX_Ax=yes. - - - Support for Armv7-A Virtualization extensions [DDI0406C_C]. - - - Support for both Armv7-A platforms that only have 32-bit addressing and - Armv7-A platforms that support large page addressing. - - - Included support for following Armv7 CPUs: Cortex-A12, Cortex-A17, - Cortex-A7, Cortex-A5, Cortex-A9, Cortex-A15. - - - Added support in QEMU for Armv7-A/Cortex-A15. - -- Enhancements to Firmware Update feature: - - - Updated the FWU documentation to describe the additional images needed for - Firmware update, and how they are used for both the Juno platform and the - Arm FVP platforms. - -- Enhancements to Trusted Board Boot feature: - - - Added support to cert_create tool for RSA PKCS1# v1.5 and SHA384, SHA512 - and SHA256. - - - For Arm platforms added support to use ECDSA keys. - - - Enhanced the mbed TLS wrapper layer to include support for both RSA and - ECDSA to enable runtime selection between RSA and ECDSA keys. - -- Added support for secure interrupt handling in AArch32 sp_min, hardcoded to - only handle FIQs. - -- Added support to allow a platform to load images from multiple boot sources, - for example from a second flash drive. - -- Added a logging framework that allows platforms to reduce the logging level - at runtime and additionally the prefix string can be defined by the platform. - -- Further improvements to register initialisation: - - - Control register PMCR_EL0 / PMCR is set to prohibit cycle counting in the - secure world. This register is added to the list of registers that are - saved and restored during world switch. - - - When EL3 is running in AArch32 execution state, the Non-secure version of - SCTLR is explicitly initialised during the warmboot flow rather than - relying on the hardware to set the correct reset values. - -- Enhanced support for Arm platforms: - - - Introduced driver for Shared-Data-Structure (SDS) framework which is used - for communication between SCP and the AP CPU, replacing Boot-Over_MHU - (BOM) protocol. - - The Juno platform is migrated to use SDS with the SCMI support added in - v1.3 and is set as default. - - The driver can be found in the plat/arm/css/drivers folder. - - - Improved memory usage by only mapping TSP memory region when the TSPD has - been included in the build. This reduces the memory footprint and avoids - unnecessary memory being mapped. - - - Updated support for multi-threading CPUs for FVP platforms - always check - the MT field in MPDIR and access the bit fields accordingly. - - - Support building for platforms that model DynamIQ configuration by - implementing all CPUs in a single cluster. - - - Improved nor flash driver, for instance clearing status registers before - sending commands. Driver can be found plat/arm/board/common folder. - -- Enhancements to QEMU platform: - - - Added support for TBB. - - - Added support for using OP-TEE pageable image. - - - Added support for LOAD_IMAGE_V2. - - - Migrated to use translation table library v2 by default. - - - Added support for SEPARATE_CODE_AND_RODATA. - -- Applied workarounds CVE-2017-5715 on Arm Cortex-A57, -A72, -A73 and -A75, and - for Armv7-A CPUs Cortex-A9, -A15 and -A17. - -- Applied errata workaround for Arm Cortex-A57: 859972. - -- Applied errata workaround for Arm Cortex-A72: 859971. - -- Added support for Poplar 96Board platform. - -- Added support for Raspberry Pi 3 platform. - -- Added Call Frame Information (CFI) assembler directives to the vector entries - which enables debuggers to display the backtrace of functions that triggered - a synchronous abort. - -- Added ability to build dtb. - -- Added support for pre-tool (cert_create and fiptool) image processing - enabling compression of the image files before processing by cert_create and - fiptool. - - This can reduce fip size and may also speed up loading of images. The image - verification will also get faster because certificates are generated based on - compressed images. - - Imported zlib 1.2.11 to implement gunzip() for data compression. - -- Enhancements to fiptool: - - - Enabled the fiptool to be built using Visual Studio. - - - Added padding bytes at the end of the last image in the fip to be - facilitate transfer by DMA. - -Issues resolved since last release -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -- TF-A can be built with optimisations disabled (-O0). - -- Memory layout updated to enable Trusted Board Boot on Juno platform when - running TF-A in AArch32 execution mode (resolving `tf-issue#501`_). - -Known Issues -^^^^^^^^^^^^ - -- DTB creation not supported when building on a Windows host. This step in the - build process is skipped when running on a Windows host. - -Version 1.4 ------------ - -New features -^^^^^^^^^^^^ - -- Enabled support for platforms with hardware assisted coherency. - - A new build option HW_ASSISTED_COHERENCY allows platforms to take advantage - of the following optimisations: - - - Skip performing cache maintenance during power-up and power-down. - - - Use spin-locks instead of bakery locks. - - - Enable data caches early on warm-booted CPUs. - -- Added support for Cortex-A75 and Cortex-A55 processors. - - Both Cortex-A75 and Cortex-A55 processors use the Arm DynamIQ Shared Unit - (DSU). The power-down and power-up sequences are therefore mostly managed in - hardware, reducing complexity of the software operations. - -- Introduced Arm GIC-600 driver. - - Arm GIC-600 IP complies with Arm GICv3 architecture. For FVP platforms, the - GIC-600 driver is chosen when FVP_USE_GIC_DRIVER is set to FVP_GIC600. - -- Updated GICv3 support: - - - Introduced power management APIs for GICv3 Redistributor. These APIs - allow platforms to power down the Redistributor during CPU power on/off. - Requires the GICv3 implementations to have power management operations. - - Implemented the power management APIs for FVP. - - - GIC driver data is flushed by the primary CPU so that secondary CPU do - not read stale GIC data. - -- Added support for Arm System Control and Management Interface v1.0 (SCMI). - - The SCMI driver implements the power domain management and system power - management protocol of the SCMI specification (Arm DEN 0056ASCMI) for - communicating with any compliant power controller. - - Support is added for the Juno platform. The driver can be found in the - plat/arm/css/drivers folder. - -- Added support to enable pre-integration of TBB with the Arm TrustZone - CryptoCell product, to take advantage of its hardware Root of Trust and - crypto acceleration services. - -- Enabled Statistical Profiling Extensions for lower ELs. - - The firmware support is limited to the use of SPE in the Non-secure state - and accesses to the SPE specific registers from S-EL1 will trap to EL3. - - The SPE are architecturally specified for AArch64 only. - -- Code hygiene changes aligned with MISRA guidelines: - - - Fixed signed / unsigned comparison warnings in the translation table - library. - - - Added U(_x) macro and together with the existing ULL(_x) macro fixed - some of the signed-ness defects flagged by the MISRA scanner. - -- Enhancements to Firmware Update feature: - - - The FWU logic now checks for overlapping images to prevent execution of - unauthenticated arbitrary code. - - - Introduced new FWU_SMC_IMAGE_RESET SMC that changes the image loading - state machine to go from COPYING, COPIED or AUTHENTICATED states to - RESET state. Previously, this was only possible when the authentication - of an image failed or when the execution of the image finished. - - - Fixed integer overflow which addressed TFV-1: Malformed Firmware Update - SMC can result in copy of unexpectedly large data into secure memory. - -- Introduced support for Arm Compiler 6 and LLVM (clang). - - TF-A can now also be built with the Arm Compiler 6 or the clang compilers. - The assembler and linker must be provided by the GNU toolchain. - - Tested with Arm CC 6.7 and clang 3.9.x and 4.0.x. - -- Memory footprint improvements: - - - Introduced `tf_snprintf`, a reduced version of `snprintf` which has - support for a limited set of formats. - - The mbedtls driver is updated to optionally use `tf_snprintf` instead of - `snprintf`. - - - The `assert()` is updated to no longer print the function name, and - additional logging options are supported via an optional platform define - `PLAT_LOG_LEVEL_ASSERT`, which controls how verbose the assert output is. - -- Enhancements to TF-A support when running in AArch32 execution state: - - - Support booting SP_MIN and BL33 in AArch32 execution mode on Juno. Due to - hardware limitations, BL1 and BL2 boot in AArch64 state and there is - additional trampoline code to warm reset into SP_MIN in AArch32 execution - state. - - - Added support for Arm Cortex-A53/57/72 MPCore processors including the - errata workarounds that are already implemented for AArch64 execution - state. - - - For FVP platforms, added AArch32 Trusted Board Boot support, including the - Firmware Update feature. - -- Introduced Arm SiP service for use by Arm standard platforms. - - - Added new Arm SiP Service SMCs to enable the Non-secure world to read PMF - timestamps. - - Added PMF instrumentation points in TF-A in order to quantify the - overall time spent in the PSCI software implementation. - - - Added new Arm SiP service SMC to switch execution state. - - This allows the lower exception level to change its execution state from - AArch64 to AArch32, or vice verse, via a request to EL3. - -- Migrated to use SPDX[0] license identifiers to make software license - auditing simpler. - - .. note:: - Files that have been imported by FreeBSD have not been modified. - - [0]: https://spdx.org/ - -- Enhancements to the translation table library: - - - Added version 2 of translation table library that allows different - translation tables to be modified by using different 'contexts'. Version 1 - of the translation table library only allows the current EL's translation - tables to be modified. - - Version 2 of the translation table also added support for dynamic - regions; regions that can be added and removed dynamically whilst the - MMU is enabled. Static regions can only be added or removed before the - MMU is enabled. - - The dynamic mapping functionality is enabled or disabled when compiling - by setting the build option PLAT_XLAT_TABLES_DYNAMIC to 1 or 0. This can - be done per-image. - - - Added support for translation regimes with two virtual address spaces - such as the one shared by EL1 and EL0. - - The library does not support initializing translation tables for EL0 - software. - - - Added support to mark the translation tables as non-cacheable using an - additional build option `XLAT_TABLE_NC`. - -- Added support for GCC stack protection. A new build option - ENABLE_STACK_PROTECTOR was introduced that enables compilation of all BL - images with one of the GCC -fstack-protector-* options. - - A new platform function plat_get_stack_protector_canary() was introduced - that returns a value used to initialize the canary for stack corruption - detection. For increased effectiveness of protection platforms must provide - an implementation that returns a random value. - -- Enhanced support for Arm platforms: - - - Added support for multi-threading CPUs, indicated by `MT` field in MPDIR. - A new build flag `ARM_PLAT_MT` is added, and when enabled, the functions - accessing MPIDR assume that the `MT` bit is set for the platform and - access the bit fields accordingly. - - Also, a new API `plat_arm_get_cpu_pe_count` is added when `ARM_PLAT_MT` is - enabled, returning the Processing Element count within the physical CPU - corresponding to `mpidr`. - - - The Arm platforms migrated to use version 2 of the translation tables. - - - Introduced a new Arm platform layer API `plat_arm_psci_override_pm_ops` - which allows Arm platforms to modify `plat_arm_psci_pm_ops` and therefore - dynamically define PSCI capability. - - - The Arm platforms migrated to use IMAGE_LOAD_V2 by default. - -- Enhanced reporting of errata workaround status with the following policy: - - - If an errata workaround is enabled: - - - If it applies (i.e. the CPU is affected by the errata), an INFO message - is printed, confirming that the errata workaround has been applied. - - - If it does not apply, a VERBOSE message is printed, confirming that the - errata workaround has been skipped. - - - If an errata workaround is not enabled, but would have applied had it - been, a WARN message is printed, alerting that errata workaround is - missing. - -- Added build options ARM_ARCH_MAJOR and ARM_ARM_MINOR to choose the - architecture version to target TF-A. - -- Updated the spin lock implementation to use the more efficient CAS (Compare - And Swap) instruction when available. This instruction was introduced in - Armv8.1-A. - -- Applied errata workaround for Arm Cortex-A53: 855873. - -- Applied errata workaround for Arm-Cortex-A57: 813419. - -- Enabled all A53 and A57 errata workarounds for Juno, both in AArch64 and - AArch32 execution states. - -- Added support for Socionext UniPhier SoC platform. - -- Added support for Hikey960 and Hikey platforms. - -- Added support for Rockchip RK3328 platform. - -- Added support for NVidia Tegra T186 platform. - -- Added support for Designware emmc driver. - -- Imported libfdt v1.4.2 that addresses buffer overflow in fdt_offset_ptr(). - -- Enhanced the CPU operations framework to allow power handlers to be - registered on per-level basis. This enables support for future CPUs that - have multiple threads which might need powering down individually. - -- Updated register initialisation to prevent unexpected behaviour: - - - Debug registers MDCR-EL3/SDCR and MDCR_EL2/HDCR are initialised to avoid - unexpected traps into the higher exception levels and disable secure - self-hosted debug. Additionally, secure privileged external debug on - Juno is disabled by programming the appropriate Juno SoC registers. - - - EL2 and EL3 configurable controls are initialised to avoid unexpected - traps in the higher exception levels. - - - Essential control registers are fully initialised on EL3 start-up, when - initialising the non-secure and secure context structures and when - preparing to leave EL3 for a lower EL. This gives better alignment with - the Arm ARM which states that software must initialise RES0 and RES1 - fields with 0 / 1. - -- Enhanced PSCI support: - - - Introduced new platform interfaces that decouple PSCI stat residency - calculation from PMF, enabling platforms to use alternative methods of - capturing timestamps. - - - PSCI stat accounting performed for retention/standby states when - requested at multiple power levels. - -- Simplified fiptool to have a single linked list of image descriptors. - -- For the TSP, resolved corruption of pre-empted secure context by aborting any - pre-empted SMC during PSCI power management requests. - -Issues resolved since last release -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -- TF-A can be built with the latest mbed TLS version (v2.4.2). The earlier - version 2.3.0 cannot be used due to build warnings that the TF-A build - system interprets as errors. - -- TBBR, including the Firmware Update feature is now supported on FVP - platforms when running TF-A in AArch32 state. - -- The version of the AEMv8 Base FVP used in this release has resolved the issue - of the model executing a reset instead of terminating in response to a - shutdown request using the PSCI SYSTEM_OFF API. - -Known Issues -^^^^^^^^^^^^ - -- Building TF-A with compiler optimisations disabled (-O0) fails. - -- Trusted Board Boot currently does not work on Juno when running Trusted - Firmware in AArch32 execution state due to error when loading the sp_min to - memory because of lack of free space available. See `tf-issue#501`_ for more - details. - -- The errata workaround for A53 errata 843419 is only available from binutils - 2.26 and is not present in GCC4.9. If this errata is applicable to the - platform, please use GCC compiler version of at least 5.0. See `PR#1002`_ for - more details. - -Version 1.3 ------------ - - -New features -^^^^^^^^^^^^ - -- Added support for running TF-A in AArch32 execution state. - - The PSCI library has been refactored to allow integration with **EL3 Runtime - Software**. This is software that is executing at the highest secure - privilege which is EL3 in AArch64 or Secure SVC/Monitor mode in AArch32. See - :ref:`PSCI Library Integration guide for Armv8-A AArch32 systems`. - - Included is a minimal AArch32 Secure Payload, **SP-MIN**, that illustrates - the usage and integration of the PSCI library with EL3 Runtime Software - running in AArch32 state. - - Booting to the BL1/BL2 images as well as booting straight to the Secure - Payload is supported. - -- Improvements to the initialization framework for the PSCI service and Arm - Standard Services in general. - - The PSCI service is now initialized as part of Arm Standard Service - initialization. This consolidates the initializations of any Arm Standard - Service that may be added in the future. - - A new function ``get_arm_std_svc_args()`` is introduced to get arguments - corresponding to each standard service and must be implemented by the EL3 - Runtime Software. - - For PSCI, a new versioned structure ``psci_lib_args_t`` is introduced to - initialize the PSCI Library. **Note** this is a compatibility break due to - the change in the prototype of ``psci_setup()``. - -- To support AArch32 builds of BL1 and BL2, implemented a new, alternative - firmware image loading mechanism that adds flexibility. - - The current mechanism has a hard-coded set of images and execution order - (BL31, BL32, etc). The new mechanism is data-driven by a list of image - descriptors provided by the platform code. - - Arm platforms have been updated to support the new loading mechanism. - - The new mechanism is enabled by a build flag (``LOAD_IMAGE_V2``) which is - currently off by default for the AArch64 build. - - **Note** ``TRUSTED_BOARD_BOOT`` is currently not supported when - ``LOAD_IMAGE_V2`` is enabled. - -- Updated requirements for making contributions to TF-A. - - Commits now must have a 'Signed-off-by:' field to certify that the - contribution has been made under the terms of the - :download:`Developer Certificate of Origin <../dco.txt>`. - - A signed CLA is no longer required. - - The :ref:`Contributor's Guide` has been updated to reflect this change. - -- Introduced Performance Measurement Framework (PMF) which provides support - for capturing, storing, dumping and retrieving time-stamps to measure the - execution time of critical paths in the firmware. This relies on defining - fixed sample points at key places in the code. - -- To support the QEMU platform port, imported libfdt v1.4.1 from - https://git.kernel.org/pub/scm/utils/dtc/dtc.git - -- Updated PSCI support: - - - Added support for PSCI NODE_HW_STATE API for Arm platforms. - - - New optional platform hook, ``pwr_domain_pwr_down_wfi()``, in - ``plat_psci_ops`` to enable platforms to perform platform-specific actions - needed to enter powerdown, including the 'wfi' invocation. - - - PSCI STAT residency and count functions have been added on Arm platforms - by using PMF. - -- Enhancements to the translation table library: - - - Limited memory mapping support for region overlaps to only allow regions - to overlap that are identity mapped or have the same virtual to physical - address offset, and overlap completely but must not cover the same area. - - This limitation will enable future enhancements without having to - support complex edge cases that may not be necessary. - - - The initial translation lookup level is now inferred from the virtual - address space size. Previously, it was hard-coded. - - - Added support for mapping Normal, Inner Non-cacheable, Outer - Non-cacheable memory in the translation table library. - - This can be useful to map a non-cacheable memory region, such as a DMA - buffer. - - - Introduced the MT_EXECUTE/MT_EXECUTE_NEVER memory mapping attributes to - specify the access permissions for instruction execution of a memory - region. - -- Enabled support to isolate code and read-only data on separate memory pages, - allowing independent access control to be applied to each. - -- Enabled SCR_EL3.SIF (Secure Instruction Fetch) bit in BL1 and BL31 common - architectural setup code, preventing fetching instructions from non-secure - memory when in secure state. - -- Enhancements to FIP support: - - - Replaced ``fip_create`` with ``fiptool`` which provides a more consistent - and intuitive interface as well as additional support to remove an image - from a FIP file. - - - Enabled printing the SHA256 digest with info command, allowing quick - verification of an image within a FIP without having to extract the - image and running sha256sum on it. - - - Added support for unpacking the contents of an existing FIP file into - the working directory. - - - Aligned command line options for specifying images to use same naming - convention as specified by TBBR and already used in cert_create tool. - -- Refactored the TZC-400 driver to also support memory controllers that - integrate TZC functionality, for example Arm CoreLink DMC-500. Also added - DMC-500 specific support. - -- Implemented generic delay timer based on the system generic counter and - migrated all platforms to use it. - -- Enhanced support for Arm platforms: - - - Updated image loading support to make SCP images (SCP_BL2 and SCP_BL2U) - optional. - - - Enhanced topology description support to allow multi-cluster topology - definitions. - - - Added interconnect abstraction layer to help platform ports select the - right interconnect driver, CCI or CCN, for the platform. - - - Added support to allow loading BL31 in the TZC-secured DRAM instead of - the default secure SRAM. - - - Added support to use a System Security Control (SSC) Registers Unit - enabling TF-A to be compiled to support multiple Arm platforms and - then select one at runtime. - - - Restricted mapping of Trusted ROM in BL1 to what is actually needed by - BL1 rather than entire Trusted ROM region. - - - Flash is now mapped as execute-never by default. This increases security - by restricting the executable region to what is strictly needed. - -- Applied following erratum workarounds for Cortex-A57: 833471, 826977, - 829520, 828024 and 826974. - -- Added support for Mediatek MT6795 platform. - -- Added support for QEMU virtualization Armv8-A target. - -- Added support for Rockchip RK3368 and RK3399 platforms. - -- Added support for Xilinx Zynq UltraScale+ MPSoC platform. - -- Added support for Arm Cortex-A73 MPCore Processor. - -- Added support for Arm Cortex-A72 processor. - -- Added support for Arm Cortex-A35 processor. - -- Added support for Arm Cortex-A32 MPCore Processor. - -- Enabled preloaded BL33 alternative boot flow, in which BL2 does not load - BL33 from non-volatile storage and BL31 hands execution over to a preloaded - BL33. The User Guide has been updated with an example of how to use this - option with a bootwrapped kernel. - -- Added support to build TF-A on a Windows-based host machine. - -- Updated Trusted Board Boot prototype implementation: - - - Enabled the ability for a production ROM with TBBR enabled to boot test - software before a real ROTPK is deployed (e.g. manufacturing mode). - Added support to use ROTPK in certificate without verifying against the - platform value when ``ROTPK_NOT_DEPLOYED`` bit is set. - - - Added support for non-volatile counter authentication to the - Authentication Module to protect against roll-back. - -- Updated GICv3 support: - - - Enabled processor power-down and automatic power-on using GICv3. - - - Enabled G1S or G0 interrupts to be configured independently. - - - Changed FVP default interrupt driver to be the GICv3-only driver. - **Note** the default build of TF-A will not be able to boot - Linux kernel with GICv2 FDT blob. - - - Enabled wake-up from CPU_SUSPEND to stand-by by temporarily re-routing - interrupts and then restoring after resume. - -Issues resolved since last release -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -Known issues -^^^^^^^^^^^^ - -- The version of the AEMv8 Base FVP used in this release resets the model - instead of terminating its execution in response to a shutdown request using - the PSCI ``SYSTEM_OFF`` API. This issue will be fixed in a future version of - the model. - -- Building TF-A with compiler optimisations disabled (``-O0``) fails. - -- TF-A cannot be built with mbed TLS version v2.3.0 due to build warnings - that the TF-A build system interprets as errors. - -- TBBR is not currently supported when running TF-A in AArch32 state. - -Version 1.2 ------------ - -New features -^^^^^^^^^^^^ - -- The Trusted Board Boot implementation on Arm platforms now conforms to the - mandatory requirements of the TBBR specification. - - In particular, the boot process is now guarded by a Trusted Watchdog, which - will reset the system in case of an authentication or loading error. On Arm - platforms, a secure instance of Arm SP805 is used as the Trusted Watchdog. - - Also, a firmware update process has been implemented. It enables - authenticated firmware to update firmware images from external interfaces to - SoC Non-Volatile memories. This feature functions even when the current - firmware in the system is corrupt or missing; it therefore may be used as - a recovery mode. - -- Improvements have been made to the Certificate Generation Tool - (``cert_create``) as follows. - - - Added support for the Firmware Update process by extending the Chain - of Trust definition in the tool to include the Firmware Update - certificate and the required extensions. - - - Introduced a new API that allows one to specify command line options in - the Chain of Trust description. This makes the declaration of the tool's - arguments more flexible and easier to extend. - - - The tool has been reworked to follow a data driven approach, which - makes it easier to maintain and extend. - -- Extended the FIP tool (``fip_create``) to support the new set of images - involved in the Firmware Update process. - -- Various memory footprint improvements. In particular: - - - The bakery lock structure for coherent memory has been optimised. - - - The mbed TLS SHA1 functions are not needed, as SHA256 is used to - generate the certificate signature. Therefore, they have been compiled - out, reducing the memory footprint of BL1 and BL2 by approximately - 6 KB. - - - On Arm development platforms, each BL stage now individually defines - the number of regions that it needs to map in the MMU. - -- Added the following new design documents: - - - :ref:`Authentication Framework & Chain of Trust` - - :ref:`Firmware Update (FWU)` - - :ref:`CPU Reset` - - :ref:`PSCI Power Domain Tree Structure` - -- Applied the new image terminology to the code base and documentation, as - described in the :ref:`Image Terminology` document. - -- The build system has been reworked to improve readability and facilitate - adding future extensions. - -- On Arm standard platforms, BL31 uses the boot console during cold boot - but switches to the runtime console for any later logs at runtime. The TSP - uses the runtime console for all output. - -- Implemented a basic NOR flash driver for Arm platforms. It programs the - device using CFI (Common Flash Interface) standard commands. - -- Implemented support for booting EL3 payloads on Arm platforms, which - reduces the complexity of developing EL3 baremetal code by doing essential - baremetal initialization. - -- Provided separate drivers for GICv3 and GICv2. These expect the entire - software stack to use either GICv2 or GICv3; hybrid GIC software systems - are no longer supported and the legacy Arm GIC driver has been deprecated. - -- Added support for Juno r1 and r2. A single set of Juno TF-A binaries can run - on Juno r0, r1 and r2 boards. Note that this TF-A version depends on a Linaro - release that does *not* contain Juno r2 support. - -- Added support for MediaTek mt8173 platform. - -- Implemented a generic driver for Arm CCN IP. - -- Major rework of the PSCI implementation. - - - Added framework to handle composite power states. - - - Decoupled the notions of affinity instances (which describes the - hierarchical arrangement of cores) and of power domain topology, instead - of assuming a one-to-one mapping. - - - Better alignment with version 1.0 of the PSCI specification. - -- Added support for the SYSTEM_SUSPEND PSCI API on Arm platforms. When invoked - on the last running core on a supported platform, this puts the system - into a low power mode with memory retention. - -- Unified the reset handling code as much as possible across BL stages. - Also introduced some build options to enable optimization of the reset path - on platforms that support it. - -- Added a simple delay timer API, as well as an SP804 timer driver, which is - enabled on FVP. - -- Added support for NVidia Tegra T210 and T132 SoCs. - -- Reorganised Arm platforms ports to greatly improve code shareability and - facilitate the reuse of some of this code by other platforms. - -- Added support for Arm Cortex-A72 processor in the CPU specific framework. - -- Provided better error handling. Platform ports can now define their own - error handling, for example to perform platform specific bookkeeping or - post-error actions. - -- Implemented a unified driver for Arm Cache Coherent Interconnects used for - both CCI-400 & CCI-500 IPs. Arm platforms ports have been migrated to this - common driver. The standalone CCI-400 driver has been deprecated. - -Issues resolved since last release -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -- The Trusted Board Boot implementation has been redesigned to provide greater - modularity and scalability. See the - :ref:`Authentication Framework & Chain of Trust` document. - All missing mandatory features are now implemented. - -- The FVP and Juno ports may now use the hash of the ROTPK stored in the - Trusted Key Storage registers to verify the ROTPK. Alternatively, a - development public key hash embedded in the BL1 and BL2 binaries might be - used instead. The location of the ROTPK is chosen at build-time using the - ``ARM_ROTPK_LOCATION`` build option. - -- GICv3 is now fully supported and stable. - -Known issues -^^^^^^^^^^^^ - -- The version of the AEMv8 Base FVP used in this release resets the model - instead of terminating its execution in response to a shutdown request using - the PSCI ``SYSTEM_OFF`` API. This issue will be fixed in a future version of - the model. - -- While this version has low on-chip RAM requirements, there are further - RAM usage enhancements that could be made. - -- The upstream documentation could be improved for structural consistency, - clarity and completeness. In particular, the design documentation is - incomplete for PSCI, the TSP(D) and the Juno platform. - -- Building TF-A with compiler optimisations disabled (``-O0``) fails. - -Version 1.1 ------------ - -New features -^^^^^^^^^^^^ - -- A prototype implementation of Trusted Board Boot has been added. Boot - loader images are verified by BL1 and BL2 during the cold boot path. BL1 and - BL2 use the PolarSSL SSL library to verify certificates and images. The - OpenSSL library is used to create the X.509 certificates. Support has been - added to ``fip_create`` tool to package the certificates in a FIP. - -- Support for calling CPU and platform specific reset handlers upon entry into - BL3-1 during the cold and warm boot paths has been added. This happens after - another Boot ROM ``reset_handler()`` has already run. This enables a developer - to perform additional actions or undo actions already performed during the - first call of the reset handlers e.g. apply additional errata workarounds. - -- Support has been added to demonstrate routing of IRQs to EL3 instead of - S-EL1 when execution is in secure world. - -- The PSCI implementation now conforms to version 1.0 of the PSCI - specification. All the mandatory APIs and selected optional APIs are - supported. In particular, support for the ``PSCI_FEATURES`` API has been - added. A capability variable is constructed during initialization by - examining the ``plat_pm_ops`` and ``spd_pm_ops`` exported by the platform and - the Secure Payload Dispatcher. This is used by the PSCI FEATURES function - to determine which PSCI APIs are supported by the platform. - -- Improvements have been made to the PSCI code as follows. - - - The code has been refactored to remove redundant parameters from - internal functions. - - - Changes have been made to the code for PSCI ``CPU_SUSPEND``, ``CPU_ON`` and - ``CPU_OFF`` calls to facilitate an early return to the caller in case a - failure condition is detected. For example, a PSCI ``CPU_SUSPEND`` call - returns ``SUCCESS`` to the caller if a pending interrupt is detected early - in the code path. - - - Optional platform APIs have been added to validate the ``power_state`` and - ``entrypoint`` parameters early in PSCI ``CPU_ON`` and ``CPU_SUSPEND`` code - paths. - - - PSCI migrate APIs have been reworked to invoke the SPD hook to determine - the type of Trusted OS and the CPU it is resident on (if - applicable). Also, during a PSCI ``MIGRATE`` call, the SPD hook to migrate - the Trusted OS is invoked. - -- It is now possible to build TF-A without marking at least an extra page of - memory as coherent. The build flag ``USE_COHERENT_MEM`` can be used to - choose between the two implementations. This has been made possible through - these changes. - - - An implementation of Bakery locks, where the locks are not allocated in - coherent memory has been added. - - - Memory which was previously marked as coherent is now kept coherent - through the use of software cache maintenance operations. - - Approximately, 4K worth of memory is saved for each boot loader stage when - ``USE_COHERENT_MEM=0``. Enabling this option increases the latencies - associated with acquire and release of locks. It also requires changes to - the platform ports. - -- It is now possible to specify the name of the FIP at build time by defining - the ``FIP_NAME`` variable. - -- Issues with dependencies on the 'fiptool' makefile target have been - rectified. The ``fip_create`` tool is now rebuilt whenever its source files - change. - -- The BL3-1 runtime console is now also used as the crash console. The crash - console is changed to SoC UART0 (UART2) from the previous FPGA UART0 (UART0) - on Juno. In FVP, it is changed from UART0 to UART1. - -- CPU errata workarounds are applied only when the revision and part number - match. This behaviour has been made consistent across the debug and release - builds. The debug build additionally prints a warning if a mismatch is - detected. - -- It is now possible to issue cache maintenance operations by set/way for a - particular level of data cache. Levels 1-3 are currently supported. - -- The following improvements have been made to the FVP port. - - - The build option ``FVP_SHARED_DATA_LOCATION`` which allowed relocation of - shared data into the Trusted DRAM has been deprecated. Shared data is - now always located at the base of Trusted SRAM. - - - BL2 Translation tables have been updated to map only the region of - DRAM which is accessible to normal world. This is the region of the 2GB - DDR-DRAM memory at 0x80000000 excluding the top 16MB. The top 16MB is - accessible to only the secure world. - - - BL3-2 can now reside in the top 16MB of DRAM which is accessible only to - the secure world. This can be done by setting the build flag - ``FVP_TSP_RAM_LOCATION`` to the value ``dram``. - -- Separate translation tables are created for each boot loader image. The - ``IMAGE_BLx`` build options are used to do this. This allows each stage to - create mappings only for areas in the memory map that it needs. - -- A Secure Payload Dispatcher (OPTEED) for the OP-TEE Trusted OS has been - added. Details of using it with TF-A can be found in :ref:`OP-TEE Dispatcher` - -Issues resolved since last release -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -- The Juno port has been aligned with the FVP port as follows. - - - Support for reclaiming all BL1 RW memory and BL2 memory by overlaying - the BL3-1/BL3-2 NOBITS sections on top of them has been added to the - Juno port. - - - The top 16MB of the 2GB DDR-DRAM memory at 0x80000000 is configured - using the TZC-400 controller to be accessible only to the secure world. - - - The Arm GIC driver is used to configure the GIC-400 instead of using a - GIC driver private to the Juno port. - - - PSCI ``CPU_SUSPEND`` calls that target a standby state are now supported. - - - The TZC-400 driver is used to configure the controller instead of direct - accesses to the registers. - -- The Linux kernel version referred to in the user guide has DVFS and HMP - support enabled. - -- DS-5 v5.19 did not detect Version 5.8 of the Cortex-A57-A53 Base FVPs in - CADI server mode. This issue is not seen with DS-5 v5.20 and Version 6.2 of - the Cortex-A57-A53 Base FVPs. - -Known issues -^^^^^^^^^^^^ - -- The Trusted Board Boot implementation is a prototype. There are issues with - the modularity and scalability of the design. Support for a Trusted - Watchdog, firmware update mechanism, recovery images and Trusted debug is - absent. These issues will be addressed in future releases. - -- The FVP and Juno ports do not use the hash of the ROTPK stored in the - Trusted Key Storage registers to verify the ROTPK in the - ``plat_match_rotpk()`` function. This prevents the correct establishment of - the Chain of Trust at the first step in the Trusted Board Boot process. - -- The version of the AEMv8 Base FVP used in this release resets the model - instead of terminating its execution in response to a shutdown request using - the PSCI ``SYSTEM_OFF`` API. This issue will be fixed in a future version of - the model. - -- GICv3 support is experimental. There are known issues with GICv3 - initialization in the TF-A. - -- While this version greatly reduces the on-chip RAM requirements, there are - further RAM usage enhancements that could be made. - -- The firmware design documentation for the Test Secure-EL1 Payload (TSP) and - its dispatcher (TSPD) is incomplete. Similarly for the PSCI section. - -- The Juno-specific firmware design documentation is incomplete. - -Version 1.0 ------------ - -New features -^^^^^^^^^^^^ - -- It is now possible to map higher physical addresses using non-flat virtual - to physical address mappings in the MMU setup. - -- Wider use is now made of the per-CPU data cache in BL3-1 to store: - - - Pointers to the non-secure and secure security state contexts. - - - A pointer to the CPU-specific operations. - - - A pointer to PSCI specific information (for example the current power - state). - - - A crash reporting buffer. - -- The following RAM usage improvements result in a BL3-1 RAM usage reduction - from 96KB to 56KB (for FVP with TSPD), and a total RAM usage reduction - across all images from 208KB to 88KB, compared to the previous release. - - - Removed the separate ``early_exception`` vectors from BL3-1 (2KB code size - saving). - - - Removed NSRAM from the FVP memory map, allowing the removal of one - (4KB) translation table. - - - Eliminated the internal ``psci_suspend_context`` array, saving 2KB. - - - Correctly dimensioned the PSCI ``aff_map_node`` array, saving 1.5KB in the - FVP port. - - - Removed calling CPU mpidr from the bakery lock API, saving 160 bytes. - - - Removed current CPU mpidr from PSCI common code, saving 160 bytes. - - - Inlined the mmio accessor functions, saving 360 bytes. - - - Fully reclaimed all BL1 RW memory and BL2 memory on the FVP port by - overlaying the BL3-1/BL3-2 NOBITS sections on top of these at runtime. - - - Made storing the FP register context optional, saving 0.5KB per context - (8KB on the FVP port, with TSPD enabled and running on 8 CPUs). - - - Implemented a leaner ``tf_printf()`` function, allowing the stack to be - greatly reduced. - - - Removed coherent stacks from the codebase. Stacks allocated in normal - memory are now used before and after the MMU is enabled. This saves 768 - bytes per CPU in BL3-1. - - - Reworked the crash reporting in BL3-1 to use less stack. - - - Optimized the EL3 register state stored in the ``cpu_context`` structure - so that registers that do not change during normal execution are - re-initialized each time during cold/warm boot, rather than restored - from memory. This saves about 1.2KB. - - - As a result of some of the above, reduced the runtime stack size in all - BL images. For BL3-1, this saves 1KB per CPU. - -- PSCI SMC handler improvements to correctly handle calls from secure states - and from AArch32. - -- CPU contexts are now initialized from the ``entry_point_info``. BL3-1 fully - determines the exception level to use for the non-trusted firmware (BL3-3) - based on the SPSR value provided by the BL2 platform code (or otherwise - provided to BL3-1). This allows platform code to directly run non-trusted - firmware payloads at either EL2 or EL1 without requiring an EL2 stub or OS - loader. - -- Code refactoring improvements: - - - Refactored ``fvp_config`` into a common platform header. - - - Refactored the fvp gic code to be a generic driver that no longer has an - explicit dependency on platform code. - - - Refactored the CCI-400 driver to not have dependency on platform code. - - - Simplified the IO driver so it's no longer necessary to call ``io_init()`` - and moved all the IO storage framework code to one place. - - - Simplified the interface the the TZC-400 driver. - - - Clarified the platform porting interface to the TSP. - - - Reworked the TSPD setup code to support the alternate BL3-2 - initialization flow where BL3-1 generic code hands control to BL3-2, - rather than expecting the TSPD to hand control directly to BL3-2. - - - Considerable rework to PSCI generic code to support CPU specific - operations. - -- Improved console log output, by: - - - Adding the concept of debug log levels. - - - Rationalizing the existing debug messages and adding new ones. - - - Printing out the version of each BL stage at runtime. - - - Adding support for printing console output from assembler code, - including when a crash occurs before the C runtime is initialized. - -- Moved up to the latest versions of the FVPs, toolchain, EDK2, kernel, Linaro - file system and DS-5. - -- On the FVP port, made the use of the Trusted DRAM region optional at build - time (off by default). Normal platforms will not have such a "ready-to-use" - DRAM area so it is not a good example to use it. - -- Added support for PSCI ``SYSTEM_OFF`` and ``SYSTEM_RESET`` APIs. - -- Added support for CPU specific reset sequences, power down sequences and - register dumping during crash reporting. The CPU specific reset sequences - include support for errata workarounds. - -- Merged the Juno port into the master branch. Added support for CPU hotplug - and CPU idle. Updated the user guide to describe how to build and run on the - Juno platform. - -Issues resolved since last release -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -- Removed the concept of top/bottom image loading. The image loader now - automatically detects the position of the image inside the current memory - layout and updates the layout to minimize fragmentation. This resolves the - image loader limitations of previously releases. There are currently no - plans to support dynamic image loading. - -- CPU idle now works on the publicized version of the Foundation FVP. - -- All known issues relating to the compiler version used have now been - resolved. This TF-A version uses Linaro toolchain 14.07 (based on GCC 4.9). - -Known issues -^^^^^^^^^^^^ - -- GICv3 support is experimental. The Linux kernel patches to support this are - not widely available. There are known issues with GICv3 initialization in - the TF-A. - -- While this version greatly reduces the on-chip RAM requirements, there are - further RAM usage enhancements that could be made. - -- The firmware design documentation for the Test Secure-EL1 Payload (TSP) and - its dispatcher (TSPD) is incomplete. Similarly for the PSCI section. - -- The Juno-specific firmware design documentation is incomplete. - -- Some recent enhancements to the FVP port have not yet been translated into - the Juno port. These will be tracked via the tf-issues project. - -- The Linux kernel version referred to in the user guide has DVFS and HMP - support disabled due to some known instabilities at the time of this - release. A future kernel version will re-enable these features. - -- DS-5 v5.19 does not detect Version 5.8 of the Cortex-A57-A53 Base FVPs in - CADI server mode. This is because the ``<SimName>`` reported by the FVP in - this version has changed. For example, for the Cortex-A57x4-A53x4 Base FVP, - the ``<SimName>`` reported by the FVP is ``FVP_Base_Cortex_A57x4_A53x4``, while - DS-5 expects it to be ``FVP_Base_A57x4_A53x4``. - - The temporary fix to this problem is to change the name of the FVP in - ``sw/debugger/configdb/Boards/ARM FVP/Base_A57x4_A53x4/cadi_config.xml``. - Change the following line: - - :: - - <SimName>System Generator:FVP_Base_A57x4_A53x4</SimName> - - to - System Generator:FVP_Base_Cortex-A57x4_A53x4 - - A similar change can be made to the other Cortex-A57-A53 Base FVP variants. - -Version 0.4 ------------ - -New features -^^^^^^^^^^^^ - -- Makefile improvements: - - - Improved dependency checking when building. - - - Removed ``dump`` target (build now always produces dump files). - - - Enabled platform ports to optionally make use of parts of the Trusted - Firmware (e.g. BL3-1 only), rather than being forced to use all parts. - Also made the ``fip`` target optional. - - - Specified the full path to source files and removed use of the ``vpath`` - keyword. - -- Provided translation table library code for potential re-use by platforms - other than the FVPs. - -- Moved architectural timer setup to platform-specific code. - -- Added standby state support to PSCI cpu_suspend implementation. - -- SRAM usage improvements: - - - Started using the ``-ffunction-sections``, ``-fdata-sections`` and - ``--gc-sections`` compiler/linker options to remove unused code and data - from the images. Previously, all common functions were being built into - all binary images, whether or not they were actually used. - - - Placed all assembler functions in their own section to allow more unused - functions to be removed from images. - - - Updated BL1 and BL2 to use a single coherent stack each, rather than one - per CPU. - - - Changed variables that were unnecessarily declared and initialized as - non-const (i.e. in the .data section) so they are either uninitialized - (zero init) or const. - -- Moved the Test Secure-EL1 Payload (BL3-2) to execute in Trusted SRAM by - default. The option for it to run in Trusted DRAM remains. - -- Implemented a TrustZone Address Space Controller (TZC-400) driver. A - default configuration is provided for the Base FVPs. This means the model - parameter ``-C bp.secure_memory=1`` is now supported. - -- Started saving the PSCI cpu_suspend 'power_state' parameter prior to - suspending a CPU. This allows platforms that implement multiple power-down - states at the same affinity level to identify a specific state. - -- Refactored the entire codebase to reduce the amount of nesting in header - files and to make the use of system/user includes more consistent. Also - split platform.h to separate out the platform porting declarations from the - required platform porting definitions and the definitions/declarations - specific to the platform port. - -- Optimized the data cache clean/invalidate operations. - -- Improved the BL3-1 unhandled exception handling and reporting. Unhandled - exceptions now result in a dump of registers to the console. - -- Major rework to the handover interface between BL stages, in particular the - interface to BL3-1. The interface now conforms to a specification and is - more future proof. - -- Added support for optionally making the BL3-1 entrypoint a reset handler - (instead of BL1). This allows platforms with an alternative image loading - architecture to re-use BL3-1 with fewer modifications to generic code. - -- Reserved some DDR DRAM for secure use on FVP platforms to avoid future - compatibility problems with non-secure software. - -- Added support for secure interrupts targeting the Secure-EL1 Payload (SP) - (using GICv2 routing only). Demonstrated this working by adding an interrupt - target and supporting test code to the TSP. Also demonstrated non-secure - interrupt handling during TSP processing. - -Issues resolved since last release -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -- Now support use of the model parameter ``-C bp.secure_memory=1`` in the Base - FVPs (see **New features**). - -- Support for secure world interrupt handling now available (see **New - features**). - -- Made enough SRAM savings (see **New features**) to enable the Test Secure-EL1 - Payload (BL3-2) to execute in Trusted SRAM by default. - -- The tested filesystem used for this release (Linaro AArch64 OpenEmbedded - 14.04) now correctly reports progress in the console. - -- Improved the Makefile structure to make it easier to separate out parts of - the TF-A for re-use in platform ports. Also, improved target dependency - checking. - -Known issues -^^^^^^^^^^^^ - -- GICv3 support is experimental. The Linux kernel patches to support this are - not widely available. There are known issues with GICv3 initialization in - the TF-A. - -- Dynamic image loading is not available yet. The current image loader - implementation (used to load BL2 and all subsequent images) has some - limitations. Changing BL2 or BL3-1 load addresses in certain ways can lead - to loading errors, even if the images should theoretically fit in memory. - -- TF-A still uses too much on-chip Trusted SRAM. A number of RAM usage - enhancements have been identified to rectify this situation. - -- CPU idle does not work on the advertised version of the Foundation FVP. - Some FVP fixes are required that are not available externally at the time - of writing. This can be worked around by disabling CPU idle in the Linux - kernel. - -- Various bugs in TF-A, UEFI and the Linux kernel have been observed when - using Linaro toolchain versions later than 13.11. Although most of these - have been fixed, some remain at the time of writing. These mainly seem to - relate to a subtle change in the way the compiler converts between 64-bit - and 32-bit values (e.g. during casting operations), which reveals - previously hidden bugs in client code. - -- The firmware design documentation for the Test Secure-EL1 Payload (TSP) and - its dispatcher (TSPD) is incomplete. Similarly for the PSCI section. - -Version 0.3 ------------ - -New features -^^^^^^^^^^^^ - -- Support for Foundation FVP Version 2.0 added. - The documented UEFI configuration disables some devices that are unavailable - in the Foundation FVP, including MMC and CLCD. The resultant UEFI binary can - be used on the AEMv8 and Cortex-A57-A53 Base FVPs, as well as the Foundation - FVP. - - .. note:: - The software will not work on Version 1.0 of the Foundation FVP. - -- Enabled third party contributions. Added a new contributing.md containing - instructions for how to contribute and updated copyright text in all files - to acknowledge contributors. - -- The PSCI CPU_SUSPEND API has been stabilised to the extent where it can be - used for entry into power down states with the following restrictions: - - - Entry into standby states is not supported. - - The API is only supported on the AEMv8 and Cortex-A57-A53 Base FVPs. - -- The PSCI AFFINITY_INFO api has undergone limited testing on the Base FVPs to - allow experimental use. - -- Required C library and runtime header files are now included locally in - TF-A instead of depending on the toolchain standard include paths. The - local implementation has been cleaned up and reduced in scope. - -- Added I/O abstraction framework, primarily to allow generic code to load - images in a platform-independent way. The existing image loading code has - been reworked to use the new framework. Semi-hosting and NOR flash I/O - drivers are provided. - -- Introduced Firmware Image Package (FIP) handling code and tools. A FIP - combines multiple firmware images with a Table of Contents (ToC) into a - single binary image. The new FIP driver is another type of I/O driver. The - Makefile builds a FIP by default and the FVP platform code expect to load a - FIP from NOR flash, although some support for image loading using semi- - hosting is retained. - - .. note:: - Building a FIP by default is a non-backwards-compatible change. - - .. note:: - Generic BL2 code now loads a BL3-3 (non-trusted firmware) image into - DRAM instead of expecting this to be pre-loaded at known location. This is - also a non-backwards-compatible change. - - .. note:: - Some non-trusted firmware (e.g. UEFI) will need to be rebuilt so that - it knows the new location to execute from and no longer needs to copy - particular code modules to DRAM itself. - -- Reworked BL2 to BL3-1 handover interface. A new composite structure - (bl31_args) holds the superset of information that needs to be passed from - BL2 to BL3-1, including information on how handover execution control to - BL3-2 (if present) and BL3-3 (non-trusted firmware). - -- Added library support for CPU context management, allowing the saving and - restoring of - - - Shared system registers between Secure-EL1 and EL1. - - VFP registers. - - Essential EL3 system registers. - -- Added a framework for implementing EL3 runtime services. Reworked the PSCI - implementation to be one such runtime service. - -- Reworked the exception handling logic, making use of both SP_EL0 and SP_EL3 - stack pointers for determining the type of exception, managing general - purpose and system register context on exception entry/exit, and handling - SMCs. SMCs are directed to the correct EL3 runtime service. - -- Added support for a Test Secure-EL1 Payload (TSP) and a corresponding - Dispatcher (TSPD), which is loaded as an EL3 runtime service. The TSPD - implements Secure Monitor functionality such as world switching and - EL1 context management, and is responsible for communication with the TSP. - - .. note:: - The TSPD does not yet contain support for secure world interrupts. - .. note:: - The TSP/TSPD is not built by default. - -Issues resolved since last release -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -- Support has been added for switching context between secure and normal - worlds in EL3. - -- PSCI API calls ``AFFINITY_INFO`` & ``PSCI_VERSION`` have now been tested (to - a limited extent). - -- The TF-A build artifacts are now placed in the ``./build`` directory and - sub-directories instead of being placed in the root of the project. - -- TF-A is now free from build warnings. Build warnings are now treated as - errors. - -- TF-A now provides C library support locally within the project to maintain - compatibility between toolchains/systems. - -- The PSCI locking code has been reworked so it no longer takes locks in an - incorrect sequence. - -- The RAM-disk method of loading a Linux file-system has been confirmed to - work with the TF-A and Linux kernel version (based on version 3.13) used - in this release, for both Foundation and Base FVPs. - -Known issues -^^^^^^^^^^^^ - -The following is a list of issues which are expected to be fixed in the future -releases of TF-A. - -- The TrustZone Address Space Controller (TZC-400) is not being programmed - yet. Use of model parameter ``-C bp.secure_memory=1`` is not supported. - -- No support yet for secure world interrupt handling. - -- GICv3 support is experimental. The Linux kernel patches to support this are - not widely available. There are known issues with GICv3 initialization in - TF-A. - -- Dynamic image loading is not available yet. The current image loader - implementation (used to load BL2 and all subsequent images) has some - limitations. Changing BL2 or BL3-1 load addresses in certain ways can lead - to loading errors, even if the images should theoretically fit in memory. - -- TF-A uses too much on-chip Trusted SRAM. Currently the Test Secure-EL1 - Payload (BL3-2) executes in Trusted DRAM since there is not enough SRAM. - A number of RAM usage enhancements have been identified to rectify this - situation. - -- CPU idle does not work on the advertised version of the Foundation FVP. - Some FVP fixes are required that are not available externally at the time - of writing. - -- Various bugs in TF-A, UEFI and the Linux kernel have been observed when - using Linaro toolchain versions later than 13.11. Although most of these - have been fixed, some remain at the time of writing. These mainly seem to - relate to a subtle change in the way the compiler converts between 64-bit - and 32-bit values (e.g. during casting operations), which reveals - previously hidden bugs in client code. - -- The tested filesystem used for this release (Linaro AArch64 OpenEmbedded - 14.01) does not report progress correctly in the console. It only seems to - produce error output, not standard output. It otherwise appears to function - correctly. Other filesystem versions on the same software stack do not - exhibit the problem. - -- The Makefile structure doesn't make it easy to separate out parts of the - TF-A for re-use in platform ports, for example if only BL3-1 is required in - a platform port. Also, dependency checking in the Makefile is flawed. - -- The firmware design documentation for the Test Secure-EL1 Payload (TSP) and - its dispatcher (TSPD) is incomplete. Similarly for the PSCI section. - -Version 0.2 ------------ - -New features -^^^^^^^^^^^^ - -- First source release. - -- Code for the PSCI suspend feature is supplied, although this is not enabled - by default since there are known issues (see below). - -Issues resolved since last release -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -- The "psci" nodes in the FDTs provided in this release now fully comply - with the recommendations made in the PSCI specification. - -Known issues -^^^^^^^^^^^^ - -The following is a list of issues which are expected to be fixed in the future -releases of TF-A. - -- The TrustZone Address Space Controller (TZC-400) is not being programmed - yet. Use of model parameter ``-C bp.secure_memory=1`` is not supported. - -- No support yet for secure world interrupt handling or for switching context - between secure and normal worlds in EL3. - -- GICv3 support is experimental. The Linux kernel patches to support this are - not widely available. There are known issues with GICv3 initialization in - TF-A. - -- Dynamic image loading is not available yet. The current image loader - implementation (used to load BL2 and all subsequent images) has some - limitations. Changing BL2 or BL3-1 load addresses in certain ways can lead - to loading errors, even if the images should theoretically fit in memory. - -- Although support for PSCI ``CPU_SUSPEND`` is present, it is not yet stable - and ready for use. - -- PSCI API calls ``AFFINITY_INFO`` & ``PSCI_VERSION`` are implemented but have - not been tested. - -- The TF-A make files result in all build artifacts being placed in the root - of the project. These should be placed in appropriate sub-directories. - -- The compilation of TF-A is not free from compilation warnings. Some of these - warnings have not been investigated yet so they could mask real bugs. - -- TF-A currently uses toolchain/system include files like stdio.h. It should - provide versions of these within the project to maintain compatibility - between toolchains/systems. - -- The PSCI code takes some locks in an incorrect sequence. This may cause - problems with suspend and hotplug in certain conditions. - -- The Linux kernel used in this release is based on version 3.12-rc4. Using - this kernel with the TF-A fails to start the file-system as a RAM-disk. It - fails to execute user-space ``init`` from the RAM-disk. As an alternative, - the VirtioBlock mechanism can be used to provide a file-system to the - kernel. - --------------- - -*Copyright (c) 2013-2020, Arm Limited and Contributors. All rights reserved.* - -.. _SDEI Specification: http://infocenter.arm.com/help/topic/com.arm.doc.den0054a/ARM_DEN0054A_Software_Delegated_Exception_Interface.pdf -.. _tf-issue#501: https://github.com/ARM-software/tf-issues/issues/501 -.. _PR#1002: https://github.com/ARM-software/arm-trusted-firmware/pull/1002#issuecomment-312650193 -.. _mbed TLS releases: https://tls.mbed.org/tech-updates/releases diff --git a/docs/conf.py b/docs/conf.py index 356be99d6..ef77f6bfe 100644 --- a/docs/conf.py +++ b/docs/conf.py @@ -20,13 +20,13 @@ project = 'Trusted Firmware-A' # Add any Sphinx extension module names here, as strings. They can be # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom # ones. -extensions = ['sphinx.ext.autosectionlabel', 'sphinxcontrib.plantuml'] +extensions = ['myst_parser', 'sphinx.ext.autosectionlabel', 'sphinxcontrib.plantuml'] # Add any paths that contain templates here, relative to this directory. templates_path = ['_templates'] # The suffix(es) of source filenames. -source_suffix = '.rst' +source_suffix = ['.md', '.rst'] # The master toctree document. master_doc = 'index' diff --git a/docs/getting_started/prerequisites.rst b/docs/getting_started/prerequisites.rst index f45193ae2..ee301282a 100644 --- a/docs/getting_started/prerequisites.rst +++ b/docs/getting_started/prerequisites.rst @@ -75,7 +75,7 @@ These tools are optional: The standard software package used for debugging software on Arm development platforms and |FVP| models. -- Node.js >= 14 +- Node.js >= 16 Highly recommended, and necessary in order to install and use the packaged Git hooks and helper tools. Without these tools you will need to rely on the @@ -98,13 +98,13 @@ The optional packages can be installed using: sudo apt install device-tree-compiler Additionally, to install an up-to-date version of Node.js, you can use the `Node -Version Manager`_ to install a version of your choosing (we recommend 14, but +Version Manager`_ to install a version of your choosing (we recommend 16, but later LTS versions might offer a more stable experience): .. code:: shell - curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | "$SHELL" - exec "$SHELL" -ic "nvm install 14; exec $SHELL" + curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.0/install.sh | "$SHELL" + exec "$SHELL" -ic "nvm install 16; exec $SHELL" .. _Node Version Manager: https://github.com/nvm-sh/nvm#install--update-script diff --git a/docs/process/commit-style.rst b/docs/process/commit-style.rst new file mode 100644 index 000000000..e9df5cee5 --- /dev/null +++ b/docs/process/commit-style.rst @@ -0,0 +1,163 @@ +Commit Style +============ + +When writing commit messages, please think carefully about the purpose and scope +of the change you are making: describe briefly what the change does, and +describe in detail why it does it. This helps to ensure that changes to the +code-base are transparent and approachable to reviewers, and it allows us to +keep a more accurate changelog. You may use Markdown in commit messages. + +A good commit message provides all the background information needed for +reviewers to understand the intent and rationale of the patch. This information +is also useful for future reference. + +For example: + +- What does the patch do? +- What motivated it? +- What impact does it have? +- How was it tested? +- Have alternatives been considered? Why did you choose this approach over + another one? +- If it fixes an `issue`_, include a reference. + +|TF-A| follows the `Conventional Commits`_ specification. All commits to the +main repository are expected to adhere to these guidelines, so it is +**strongly** recommended that you read at least the `quick summary`_ of the +specification. + +To briefly summarize, commit messages are expected to be of the form: + +.. code:: + + <type>[optional scope]: <description> + + [optional body] + + [optional footer(s)] + +The following example commit message demonstrates the use of the +``refactor`` type and the ``amu`` scope: + +.. code:: + + refactor(amu): factor out register accesses + + This change introduces a small set of register getters and setters to + avoid having to repeatedly mask and shift in complex code. + + Change-Id: Ia372f60c5efb924cd6eeceb75112e635ad13d942 + Signed-off-by: Chris Kay <chris.kay@arm.com> + +The following `types` are permissible and are strictly enforced: + ++--------------+---------------------------------------------------------------+ +| Scope | Description | ++==============+===============================================================+ +| ``feat`` | A new feature | ++--------------+---------------------------------------------------------------+ +| ``fix`` | A bug fix | ++--------------+---------------------------------------------------------------+ +| ``build`` | Changes that affect the build system or external dependencies | ++--------------+---------------------------------------------------------------+ +| ``ci`` | Changes to our CI configuration files and scripts | ++--------------+---------------------------------------------------------------+ +| ``docs`` | Documentation-only changes | ++--------------+---------------------------------------------------------------+ +| ``perf`` | A code change that improves performance | ++--------------+---------------------------------------------------------------+ +| ``refactor`` | A code change that neither fixes a bug nor adds a feature | ++--------------+---------------------------------------------------------------+ +| ``revert`` | Changes that revert a previous change | ++--------------+---------------------------------------------------------------+ +| ``style`` | Changes that do not affect the meaning of the code | +| | (white-space, formatting, missing semi-colons, etc.) | ++--------------+---------------------------------------------------------------+ +| ``test`` | Adding missing tests or correcting existing tests | ++--------------+---------------------------------------------------------------+ +| ``chore`` | Any other change | ++--------------+---------------------------------------------------------------+ + +The permissible `scopes` are more flexible, and we maintain a list of them in +our :download:`Commitizen configuration file <../../.cz.json>`. Scopes in this +file are organized by their changelog section, each of which may have one or +more accepted scopes, but only the first of which is considered to be "blessed". +Scopes that are not blessed exist for changes submitted before scope enforcement +came into effect, and are considered deprecated. + +While we don't enforce scopes strictly, we do ask that commits use these if they +can, or add their own if no appropriate one exists (see :ref:`Adding Scopes`). + +It's highly recommended that you use the tooling installed by the optional steps +in the :ref:`prerequisites <Prerequisites>` guide to validate commit messages +locally, as commitlint reports a live list of the acceptable scopes. + +.. _Adding Scopes: + +Adding Scopes +------------- + +Scopes that are either a) unblessed in the configuration file, or b) do not +exist in the configuration file at all are considered to be deprecated. If you +are adding a new component that does not yet have a designated scope, please +feel free to add one. + +For example, if you are adding or making modifications to `Foo`'s latest and +greatest new platform `Bar`, you would add it to the `Platforms` changelog +section, and the hierarchy should look something like this: + +.. code:: json + + { + "sections": [ + { + "title": "Platforms", + "sections": [ + { + "title": "Foo", + "scopes": ["foo"], + "sections": [ + { + "title": "Bar", + "scopes": ["bar"] + } + ] + } + ] + } + ] + } + +When creating new scopes, try to keep them short and succinct, and use kebab +case (``this-is-kebab-case``). Components with a product name (i.e. most +platforms and some drivers) should use that name (e.g. ``gic600ae``, +``flexspi``, ``stpmic1``), otherwise use a name that uniquely represents the +component (e.g. ``marvell-comphy-3700``, ``rcar3-drivers``, ``a3720-uart``). + +Mandated Trailers +----------------- + +Commits are expected to be signed off with the ``Signed-off-by:`` trailer using +your real name and email address. You can do this automatically by committing +with Git's ``-s`` flag. + +There may be multiple ``Signed-off-by:`` lines depending on the history of the +patch, but one **must** be the committer. More details may be found in the +`Gerrit Signed-off-by Lines guidelines`_. + +Ensure that each commit also has a unique ``Change-Id:`` line. If you have +followed optional steps in the prerequisites to either install the Node.js tools +or clone the repository using the "`Clone with commit-msg hook`" clone method, +then this should be done automatically for you. + +More details may be found in the `Gerrit Change-Ids documentation`_. + +-------------- + +*Copyright (c) 2021, Arm Limited and Contributors. All rights reserved.* + +.. _Conventional Commits: https://www.conventionalcommits.org/en/v1.0.0 +.. _Gerrit Change-Ids documentation: https://review.trustedfirmware.org/Documentation/user-changeid.html +.. _Gerrit Signed-off-by Lines guidelines: https://review.trustedfirmware.org/Documentation/user-signedoffby.html +.. _issue: https://developer.trustedfirmware.org/project/board/1/ +.. _quick summary: https://www.conventionalcommits.org/en/v1.0.0/#summary diff --git a/docs/process/contributing.rst b/docs/process/contributing.rst index aa050dabe..d6f61d6c7 100644 --- a/docs/process/contributing.rst +++ b/docs/process/contributing.rst @@ -26,23 +26,11 @@ Getting Started Making Changes -------------- +- Ensure commits adhere to the the project's :ref:`Commit Style`. + - Make commits of logical units. See these general `Git guidelines`_ for contributing to a project. -- Ensure your commit messages comply with the `Conventional Commits`_ - specification: - - .. code:: - - <type>[optional scope]: <description> - - [optional body] - - [optional footer(s)] - - You can use the tooling installed by the optional steps in the - :ref:`prerequisites <Prerequisites>` guide to validate this locally. - - Keep the commits on topic. If you need to fix another bug or make another enhancement, please address it on a separate topic branch. @@ -52,39 +40,6 @@ Making Changes - Avoid long commit series. If you do have a long series, consider whether some commits should be squashed together or addressed in a separate topic. -- Ensure that each commit in the series has at least one ``Signed-off-by:`` - line, using your real name and email address. The names in the - ``Signed-off-by:`` and ``Commit:`` lines must match. By adding this line the - contributor certifies the contribution is made under the terms of the - :download:`Developer Certificate of Origin <../../dco.txt>`. - - There might be multiple ``Signed-off-by:`` lines, depending on the history - of the patch. - - More details may be found in the `Gerrit Signed-off-by Lines guidelines`_. - -- Ensure that each commit also has a unique ``Change-Id:`` line. If you have - cloned the repository with the "`Clone with commit-msg hook`" clone method - (following the :ref:`Prerequisites` document), this should already be the - case. - - More details may be found in the `Gerrit Change-Ids documentation`_. - -- Write informative and comprehensive commit messages. A good commit message - provides all the background information needed for reviewers to understand - the intent and rationale of the patch. This information is also useful for - future reference. - - For example: - - - What does the patch do? - - What motivated it? - - What impact does it have? - - How was it tested? - - Have alternatives been considered? Why did you choose this approach over - another one? - - If it fixes an `issue`_, include a reference. - - Follow the :ref:`Coding Style` and :ref:`Coding Guidelines`. - Use the checkpatch.pl script provided with the Linux source tree. A @@ -289,15 +244,11 @@ Binary Components *Copyright (c) 2013-2021, Arm Limited and Contributors. All rights reserved.* -.. _Conventional Commits: https://www.conventionalcommits.org/en/v1.0.0 .. _developer.trustedfirmware.org: https://developer.trustedfirmware.org .. _review.trustedfirmware.org: https://review.trustedfirmware.org -.. _issue: https://developer.trustedfirmware.org/project/board/1/ .. _Trusted Firmware-A: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git .. _Git guidelines: http://git-scm.com/book/ch5-2.html .. _Gerrit Uploading Changes documentation: https://review.trustedfirmware.org/Documentation/user-upload.html -.. _Gerrit Signed-off-by Lines guidelines: https://review.trustedfirmware.org/Documentation/user-signedoffby.html -.. _Gerrit Change-Ids documentation: https://review.trustedfirmware.org/Documentation/user-changeid.html .. _TF-A Tests: https://trustedfirmware-a-tests.readthedocs.io .. _Trusted Firmware binary repository: https://review.trustedfirmware.org/admin/repos/tf-binaries .. _tf-binaries-readme: https://git.trustedfirmware.org/tf-binaries.git/tree/readme.rst diff --git a/docs/process/index.rst b/docs/process/index.rst index 37324b0e9..bba2b40eb 100644 --- a/docs/process/index.rst +++ b/docs/process/index.rst @@ -8,6 +8,7 @@ Processes & Policies security platform-compatibility-policy + commit-style coding-style coding-guidelines contributing diff --git a/docs/requirements.in b/docs/requirements.in new file mode 100644 index 000000000..5d771e58e --- /dev/null +++ b/docs/requirements.in @@ -0,0 +1,5 @@ +myst-parser==0.15.2 +pip-tools==6.4.0 +sphinx==4.2.0 +sphinx-rtd-theme==1.0.0 +sphinxcontrib-plantuml==0.22 diff --git a/docs/requirements.txt b/docs/requirements.txt index 358ed0e3c..03b11891c 100644 --- a/docs/requirements.txt +++ b/docs/requirements.txt @@ -1,3 +1,91 @@ -sphinx>=2.0.0 -sphinx-rtd-theme>=0.4.3 -sphinxcontrib-plantuml>=0.15 +# +# This file is autogenerated by pip-compile with python 3.8 +# To update, run: +# +# pip-compile +# +alabaster==0.7.12 + # via sphinx +attrs==21.2.0 + # via markdown-it-py +babel==2.9.1 + # via sphinx +certifi==2021.5.30 + # via requests +charset-normalizer==2.0.4 + # via requests +click==8.0.1 + # via pip-tools +docutils==0.16 + # via + # myst-parser + # sphinx + # sphinx-rtd-theme +idna==3.2 + # via requests +imagesize==1.2.0 + # via sphinx +jinja2==3.0.1 + # via + # myst-parser + # sphinx +markdown-it-py==1.1.0 + # via + # mdit-py-plugins + # myst-parser +markupsafe==2.0.1 + # via jinja2 +mdit-py-plugins==0.2.8 + # via myst-parser +myst-parser==0.15.2 + # via -r requirements.in +packaging==21.0 + # via sphinx +pep517==0.11.0 + # via pip-tools +pip-tools==6.4.0 + # via -r requirements.in +pygments==2.10.0 + # via sphinx +pyparsing==2.4.7 + # via packaging +pytz==2021.1 + # via babel +pyyaml==6.0 + # via myst-parser +requests==2.26.0 + # via sphinx +snowballstemmer==2.1.0 + # via sphinx +sphinx==4.2.0 + # via + # -r requirements.in + # myst-parser + # sphinx-rtd-theme + # sphinxcontrib-plantuml +sphinx-rtd-theme==1.0.0 + # via -r requirements.in +sphinxcontrib-applehelp==1.0.2 + # via sphinx +sphinxcontrib-devhelp==1.0.2 + # via sphinx +sphinxcontrib-htmlhelp==2.0.0 + # via sphinx +sphinxcontrib-jsmath==1.0.1 + # via sphinx +sphinxcontrib-plantuml==0.22 + # via -r requirements.in +sphinxcontrib-qthelp==1.0.3 + # via sphinx +sphinxcontrib-serializinghtml==1.1.5 + # via sphinx +tomli==1.2.1 + # via pep517 +urllib3==1.26.6 + # via requests +wheel==0.37.0 + # via pip-tools + +# The following packages are considered to be unsafe in a requirements file: +# pip +# setuptools diff --git a/package-lock.json b/package-lock.json index 61caf5705..1d95ac924 100644 --- a/package-lock.json +++ b/package-lock.json @@ -1,6 +1,3835 @@ { + "name": "trusted-firmware-a", + "version": "2.5.0", + "lockfileVersion": 2, "requires": true, - "lockfileVersion": 1, + "packages": { + "": { + "name": "trusted-firmware-a", + "version": "2.5.0", + "hasInstallScript": true, + "license": "BSD-3-Clause", + 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"file:tools/conventional-changelog-tf-a", "cz-conventional-changelog": "^3.3.0", - "husky": "^5.0.4" + "husky": "^7.0.4", + "standard-version": "^9.3.2" } } diff --git a/tools/conventional-changelog-tf-a/index.js b/tools/conventional-changelog-tf-a/index.js new file mode 100644 index 000000000..2a9d5b4d8 --- /dev/null +++ b/tools/conventional-changelog-tf-a/index.js @@ -0,0 +1,222 @@ +/* + * Copyright (c) 2021, Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* eslint-env es6 */ + +"use strict"; + +const Handlebars = require("handlebars"); +const Q = require("q"); +const _ = require("lodash"); + +const ccConventionalChangelog = require("conventional-changelog-conventionalcommits/conventional-changelog"); +const ccParserOpts = require("conventional-changelog-conventionalcommits/parser-opts"); +const ccRecommendedBumpOpts = require("conventional-changelog-conventionalcommits/conventional-recommended-bump"); +const ccWriterOpts = require("conventional-changelog-conventionalcommits/writer-opts"); + +const execa = require("execa"); + +const readFileSync = require("fs").readFileSync; +const resolve = require("path").resolve; + +/* + * Register a Handlebars helper that lets us generate Markdown lists that can support multi-line + * strings. This is driven by inconsistent formatting of breaking changes, which may be multiple + * lines long and can terminate the list early unintentionally. + */ +Handlebars.registerHelper("tf-a-mdlist", function (indent, options) { + const spaces = new Array(indent + 1).join(" "); + const first = spaces + "- "; + const nth = spaces + " "; + + return first + options.fn(this).replace(/\n(?!\s*\n)/gm, `\n${nth}`).trim() + "\n"; +}); + +/* + * Register a Handlebars helper that concatenates multiple variables. We use this to generate the + * title for the section partials. + */ +Handlebars.registerHelper("tf-a-concat", function () { + let argv = Array.prototype.slice.call(arguments, 0); + + argv.pop(); + + return argv.join(""); +}); + +function writerOpts(config) { + /* + * Flatten the configuration's sections list. This helps us iterate over all of the sections + * when we don't care about the hierarchy. + */ + + const flattenSections = function (sections) { + return sections.flatMap(section => { + const subsections = flattenSections(section.sections || []); + + return [section].concat(subsections); + }) + }; + + const flattenedSections = flattenSections(config.sections); + + /* + * Register a helper to return a restructured version of the note groups that includes notes + * categorized by their section. + */ + Handlebars.registerHelper("tf-a-notes", function (noteGroups, options) { + const generateTemplateData = function (sections, notes) { + return (sections || []).flatMap(section => { + const templateData = { + title: section.title, + sections: generateTemplateData(section.sections, notes), + notes: notes.filter(note => section.scopes?.includes(note.commit.scope)), + }; + + /* + * Don't return a section if it contains no notes and no sub-sections. + */ + if ((templateData.sections.length == 0) && (templateData.notes.length == 0)) { + return []; + } + + return [templateData]; + }); + }; + + return noteGroups.map(noteGroup => { + return { + title: noteGroup.title, + sections: generateTemplateData(config.sections, noteGroup.notes), + notes: noteGroup.notes.filter(note => + !flattenedSections.some(section => section.scopes?.includes(note.commit.scope))), + }; + }); + }); + + /* + * Register a helper to return a restructured version of the commit groups that includes commits + * categorized by their section. + */ + Handlebars.registerHelper("tf-a-commits", function (commitGroups, options) { + const generateTemplateData = function (sections, commits) { + return (sections || []).flatMap(section => { + const templateData = { + title: section.title, + sections: generateTemplateData(section.sections, commits), + commits: commits.filter(commit => section.scopes?.includes(commit.scope)), + }; + + /* + * Don't return a section if it contains no notes and no sub-sections. + */ + if ((templateData.sections.length == 0) && (templateData.commits.length == 0)) { + return []; + } + + return [templateData]; + }); + }; + + return commitGroups.map(commitGroup => { + return { + title: commitGroup.title, + sections: generateTemplateData(config.sections, commitGroup.commits), + commits: commitGroup.commits.filter(commit => + !flattenedSections.some(section => section.scopes?.includes(commit.scope))), + }; + }); + }); + + const writerOpts = ccWriterOpts(config) + .then(writerOpts => { + const ccWriterOptsTransform = writerOpts.transform; + + /* + * These configuration properties can't be injected directly into the template because + * they themselves are templates. Instead, we register them as partials, which allows + * them to be evaluated as part of the templates they're used in. + */ + Handlebars.registerPartial("commitUrl", config.commitUrlFormat); + Handlebars.registerPartial("compareUrl", config.compareUrlFormat); + Handlebars.registerPartial("issueUrl", config.issueUrlFormat); + + /* + * Register the partials that allow us to recursively create changelog sections. + */ + + const notePartial = readFileSync(resolve(__dirname, "./templates/note.hbs"), "utf-8"); + const noteSectionPartial = readFileSync(resolve(__dirname, "./templates/note-section.hbs"), "utf-8"); + const commitSectionPartial = readFileSync(resolve(__dirname, "./templates/commit-section.hbs"), "utf-8"); + + Handlebars.registerPartial("tf-a-note", notePartial); + Handlebars.registerPartial("tf-a-note-section", noteSectionPartial); + Handlebars.registerPartial("tf-a-commit-section", commitSectionPartial); + + /* + * Override the base templates so that we can generate a changelog that looks at least + * similar to the pre-Conventional Commits TF-A changelog. + */ + writerOpts.mainTemplate = readFileSync(resolve(__dirname, "./templates/template.hbs"), "utf-8"); + writerOpts.headerPartial = readFileSync(resolve(__dirname, "./templates/header.hbs"), "utf-8"); + writerOpts.commitPartial = readFileSync(resolve(__dirname, "./templates/commit.hbs"), "utf-8"); + writerOpts.footerPartial = readFileSync(resolve(__dirname, "./templates/footer.hbs"), "utf-8"); + + writerOpts.transform = function (commit, context) { + /* + * Fix up commit trailers, which for some reason are not correctly recognized and + * end up showing up in the breaking changes. + */ + + commit.notes.forEach(note => { + const trailers = execa.sync("git", ["interpret-trailers", "--parse"], { + input: note.text + }).stdout; + + note.text = note.text.replace(trailers, "").trim(); + }); + + return ccWriterOptsTransform(commit, context); + }; + + return writerOpts; + }); + + return writerOpts; +} + +module.exports = function (parameter) { + const config = parameter || {}; + + return Q.all([ + ccConventionalChangelog(config), + ccParserOpts(config), + ccRecommendedBumpOpts(config), + writerOpts(config) + ]).spread(( + conventionalChangelog, + parserOpts, + recommendedBumpOpts, + writerOpts + ) => { + if (_.isFunction(parameter)) { + return parameter(null, { + gitRawCommitsOpts: { noMerges: null }, + conventionalChangelog, + parserOpts, + recommendedBumpOpts, + writerOpts + }); + } else { + return { + conventionalChangelog, + parserOpts, + recommendedBumpOpts, + writerOpts + }; + } + }); +}; diff --git a/tools/conventional-changelog-tf-a/package.json b/tools/conventional-changelog-tf-a/package.json new file mode 100644 index 000000000..3ad853d51 --- /dev/null +++ b/tools/conventional-changelog-tf-a/package.json @@ -0,0 +1,12 @@ +{ + "name": "conventional-changelog-tf-a", + "version": "1.0.0", + "private": true, + "main": "index.js", + "dependencies": { + "conventional-changelog-conventionalcommits": "^4.6.1", + "execa": "^5.1.1", + "lodash": "^4.17.21", + "q": "^1.5.1" + } +} diff --git a/tools/conventional-changelog-tf-a/templates/commit-section.hbs b/tools/conventional-changelog-tf-a/templates/commit-section.hbs new file mode 100644 index 000000000..86b33351a --- /dev/null +++ b/tools/conventional-changelog-tf-a/templates/commit-section.hbs @@ -0,0 +1,17 @@ +{{#if title ~}} +{{ header }} + +{{#if commits.length ~}} + {{#each commits ~}} + {{#tf-a-mdlist 0}}{{> commit root=@root showScope=../topLevel }}{{/tf-a-mdlist ~}} + {{/each}} + +{{/if ~}} + +{{#if sections.length ~}} + {{#each sections ~}} + {{#tf-a-mdlist 0}}{{> tf-a-commit-section root=@root header=(tf-a-concat "**" title "**") }}{{/tf-a-mdlist}} + {{/each}} +{{/if ~}} + +{{/if}} diff --git a/tools/conventional-changelog-tf-a/templates/commit.hbs b/tools/conventional-changelog-tf-a/templates/commit.hbs new file mode 100644 index 000000000..faf264a32 --- /dev/null +++ b/tools/conventional-changelog-tf-a/templates/commit.hbs @@ -0,0 +1,15 @@ +{{#if scope }} + {{~#if showScope }}**{{ scope }}:** {{/if}} +{{~/if}} + +{{~#if subject }} + {{~ subject }} +{{~else}} + {{~ header }} +{{~/if}} + +{{~#if hash }} {{#if @root.linkReferences ~}} + ([{{ shortHash }}]({{> commitUrl root=@root }})) +{{~else}} + {{~ shortHash }} +{{~/if}}{{~/if}} diff --git a/tools/conventional-changelog-tf-a/templates/footer.hbs b/tools/conventional-changelog-tf-a/templates/footer.hbs new file mode 100644 index 000000000..e69de29bb --- /dev/null +++ b/tools/conventional-changelog-tf-a/templates/footer.hbs diff --git a/tools/conventional-changelog-tf-a/templates/header.hbs b/tools/conventional-changelog-tf-a/templates/header.hbs new file mode 100644 index 000000000..67cb297e0 --- /dev/null +++ b/tools/conventional-changelog-tf-a/templates/header.hbs @@ -0,0 +1,13 @@ +{{#if isPatch~}} + ### +{{~else~}} + ## +{{~/if}} {{#if @root.linkCompare~}} + [{{version}}]({{> compareUrl root=@root}}) +{{~else}} + {{~version}} +{{~/if}} +{{~#if title}} "{{title}}" +{{~/if}} +{{~#if date}} ({{date}}) +{{/if}} diff --git a/tools/conventional-changelog-tf-a/templates/note-section.hbs b/tools/conventional-changelog-tf-a/templates/note-section.hbs new file mode 100644 index 000000000..f501c9647 --- /dev/null +++ b/tools/conventional-changelog-tf-a/templates/note-section.hbs @@ -0,0 +1,13 @@ +{{ header }} + +{{#if notes.length ~}} + {{#each notes ~}} + {{#tf-a-mdlist 0}}{{> tf-a-note root=@root showScope=../topLevel }}{{/tf-a-mdlist}} + {{/each ~}} +{{/if ~}} + +{{#if sections.length ~}} + {{#each sections ~}} + {{#tf-a-mdlist 0}}{{> tf-a-note-section root=@root header=(tf-a-concat "**" title "**") }}{{/tf-a-mdlist}} + {{/each~}} +{{/if}} diff --git a/tools/conventional-changelog-tf-a/templates/note.hbs b/tools/conventional-changelog-tf-a/templates/note.hbs new file mode 100644 index 000000000..c780ee854 --- /dev/null +++ b/tools/conventional-changelog-tf-a/templates/note.hbs @@ -0,0 +1,3 @@ +{{ text }} + +**See:** {{#with commit }}{{> commit root=@root showScope=../showScope }}{{/with}} diff --git a/tools/conventional-changelog-tf-a/templates/template.hbs b/tools/conventional-changelog-tf-a/templates/template.hbs new file mode 100644 index 000000000..95fb68c4c --- /dev/null +++ b/tools/conventional-changelog-tf-a/templates/template.hbs @@ -0,0 +1,9 @@ +{{> header }} + +{{#each (tf-a-notes noteGroups) ~}} +{{> tf-a-note-section root=@root header=(tf-a-concat "### ⚠ " title) topLevel=true }} +{{/each ~}} + +{{#each (tf-a-commits commitGroups) ~}} +{{> tf-a-commit-section root=@root header=(tf-a-concat "### " title) topLevel=true }} +{{/each ~}} |