diff options
| author | Ard Biesheuvel <ardb@kernel.org> | 2023-04-18 15:49:51 +0200 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2023-04-20 15:45:12 +0200 |
| commit | 538bc0f40b364f2c7b81f11aa163f723b138b40f (patch) | |
| tree | bf1902edf9c52086c6b67f3e1d6f441a09300b98 /arch/arm64 | |
| parent | bca2f3a9406b89961fbc6c92c52c6fc1fd91d35f (diff) | |
efi/zboot: Set forward edge CFI compat header flag if supported
Add some plumbing to the zboot EFI header generation to set the newly
introduced DllCharacteristicsEx flag associated with forward edge CFI
enforcement instructions (BTI on arm64, IBT on x86)
x86 does not currently uses the zboot infrastructure, so let's wire it
up only for arm64.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/boot/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/boot/Makefile b/arch/arm64/boot/Makefile index c65aee088410..ae645fda90bc 100644 --- a/arch/arm64/boot/Makefile +++ b/arch/arm64/boot/Makefile @@ -42,5 +42,6 @@ $(obj)/Image.zst: $(obj)/Image FORCE EFI_ZBOOT_PAYLOAD := Image EFI_ZBOOT_BFD_TARGET := elf64-littleaarch64 EFI_ZBOOT_MACH_TYPE := ARM64 +EFI_ZBOOT_FORWARD_CFI := $(CONFIG_ARM64_BTI_KERNEL) include $(srctree)/drivers/firmware/efi/libstub/Makefile.zboot |