diff options
Diffstat (limited to 'arch/arm64/kernel/efi.c')
| -rw-r--r-- | arch/arm64/kernel/efi.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c index 9afcc690fe73..1d25d8899dbf 100644 --- a/arch/arm64/kernel/efi.c +++ b/arch/arm64/kernel/efi.c @@ -9,7 +9,9 @@ #include <linux/efi.h> #include <linux/init.h> +#include <linux/kmemleak.h> #include <linux/screen_info.h> +#include <linux/vmalloc.h> #include <asm/efi.h> #include <asm/stacktrace.h> @@ -32,8 +34,16 @@ static __init pteval_t create_mapping_protection(efi_memory_desc_t *md) u64 attr = md->attribute; u32 type = md->type; - if (type == EFI_MEMORY_MAPPED_IO) - return PROT_DEVICE_nGnRE; + if (type == EFI_MEMORY_MAPPED_IO) { + pgprot_t prot = __pgprot(PROT_DEVICE_nGnRE); + + if (arm64_is_protected_mmio(md->phys_addr, + md->num_pages << EFI_PAGE_SHIFT)) + prot = pgprot_encrypted(prot); + else + prot = pgprot_decrypted(prot); + return pgprot_val(prot); + } if (region_is_misaligned(md)) { static bool __initdata code_is_misaligned; @@ -212,6 +222,7 @@ l: if (!p) { return -ENOMEM; } + kmemleak_not_leak(p); efi_rt_stack_top = p + THREAD_SIZE; return 0; } |