diff options
| author | Ard Biesheuvel <ardb@kernel.org> | 2023-02-01 09:48:12 +0100 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2023-02-04 09:19:02 +0100 |
| commit | cf1d2ffcc6f17b422239f6ab34b078945d07f9aa (patch) | |
| tree | a42d8efe5cc90616ea052bbbe84dfaad91b9f5a1 /arch/arm64/include/asm/efi.h | |
| parent | b0048092f7d3921d56f2c5bfa32062fac5e7500b (diff) | |
efi: Discover BTI support in runtime services regions
Add the generic plumbing to detect whether or not the runtime code
regions were constructed with BTI/IBT landing pads by the firmware,
permitting the OS to enable enforcement when mapping these regions into
the OS's address space.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'arch/arm64/include/asm/efi.h')
| -rw-r--r-- | arch/arm64/include/asm/efi.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h index 31d13a6001df..5d47d429672b 100644 --- a/arch/arm64/include/asm/efi.h +++ b/arch/arm64/include/asm/efi.h @@ -27,7 +27,8 @@ bool efi_runtime_fixup_exception(struct pt_regs *regs, const char *msg) #endif int efi_create_mapping(struct mm_struct *mm, efi_memory_desc_t *md); -int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md); +int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md, + bool has_bti); #define arch_efi_call_virt_setup() \ ({ \ |