diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-08-21 09:23:26 +0100 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2015-11-18 11:10:41 -0800 |
| commit | 48f3d8e9a0acb09ecd66ad102796bb88e54aa576 (patch) | |
| tree | 8483a0211365485369cc3b73180c20eeb1955965 | |
| parent | 2f891156055d75cbfdcedaa3d6386aadc7e8c596 (diff) | |
| download | v4.1-48f3d8e9a0acb09ecd66ad102796bb88e54aa576.tar.gz | |
BACKPORT: ARM: domains: move initial domain setting value to asm/domains.h
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Bug: 25672827
Patchset: PAN emulation
(cherry picked from commit 0171356a7708af01ad3224702b7f0aaa5b7a1399)
Signed-off-by: Kees Cook <keescook@google.com>
Conflicts:
arch/arm/kernel/head.S
Change-Id: If8fb66d8887e88c2e8a576b9855225df6ddb3471
| -rw-r--r-- | arch/arm/include/asm/domain.h | 6 | ||||
| -rw-r--r-- | arch/arm/kernel/head.S | 5 |
2 files changed, 7 insertions, 4 deletions
diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h index 045b9b453bc..4218f88e8f7 100644 --- a/arch/arm/include/asm/domain.h +++ b/arch/arm/include/asm/domain.h @@ -58,6 +58,12 @@ #define domain_mask(dom) ((3) << (2 * (dom))) #define domain_val(dom,type) ((type) << (2 * (dom))) +#define DACR_INIT \ + (domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \ + domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \ + domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \ + domain_val(DOMAIN_IO, DOMAIN_CLIENT)) + #ifndef __ASSEMBLY__ static inline unsigned int get_domain(void) diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 3637973a970..b96475bdef8 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -441,10 +441,7 @@ __enable_mmu: bic r0, r0, #CR_I #endif #ifndef CONFIG_ARM_LPAE - mov r5, #(domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \ - domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \ - domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \ - domain_val(DOMAIN_IO, DOMAIN_CLIENT)) + mov r5, #DACR_INIT mcr p15, 0, r5, c3, c0, 0 @ load domain access register mcr p15, 0, r4, c2, c0, 0 @ load page table pointer #endif |