diff options
Diffstat (limited to 'board/android/pvmfw-arm64/boot.c')
| -rw-r--r-- | board/android/pvmfw-arm64/boot.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/board/android/pvmfw-arm64/boot.c b/board/android/pvmfw-arm64/boot.c index 7c3cb19326..899f733ac7 100644 --- a/board/android/pvmfw-arm64/boot.c +++ b/board/android/pvmfw-arm64/boot.c @@ -12,8 +12,10 @@ #include <bcc.h> #include <command.h> #include <config.h> +#include <dm/uclass.h> #include <fdt_support.h> #include <malloc.h> +#include <rng.h> #include <string.h> #include <linux/err.h> @@ -123,6 +125,18 @@ err: return ret; } +static int seed_u64(uint64_t *seed) +{ + int res; + struct udevice *dev; + + res = uclass_get_device_by_name(UCLASS_RNG, "smccc-trng", &dev); + if (res) + return res; + + return dm_rng_read(dev, seed, sizeof(*seed)); +} + int pvmfw_boot_flow(void *fdt, size_t fdt_max_size, void *image, size_t size, void *bcc, size_t bcc_size) { @@ -161,6 +175,10 @@ int pvmfw_boot_flow(void *fdt, size_t fdt_max_size, void *image, size_t size, if (ret) goto err; + ret = seed_u64(&cfg.kaslr_seed); + if (ret) + goto err; + ret = patch_output_fdt(fdt, &cfg); err: |