diff options
| author | Ard Biesheuvel <ardb@kernel.org> | 2023-03-25 18:12:55 +0100 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-03-30 11:05:22 +0000 |
| commit | f8b1854b92559ad28dc6df6bb886652b87e2a422 (patch) | |
| tree | bd23618458069eb519bce3d3f375b7c81ae33d3b /MdePkg/Library | |
| parent | 35318c2eb9ad3747f70cdee0714893e282ca51b0 (diff) | |
| download | edk2-f8b1854b92559ad28dc6df6bb886652b87e2a422.tar.gz edk2-f8b1854b92559ad28dc6df6bb886652b87e2a422.tar.bz2 edk2-f8b1854b92559ad28dc6df6bb886652b87e2a422.zip | |
MdePkg/BaseRngLib AARCH64: Make asm files BTI compatible
Add the BTI instructions and the associated note to make the AArch64 asm
objects compatible with BTI enforcement.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reviewed-by: Oliver Smith-Denny <osd@smith-denny.com>
Diffstat (limited to 'MdePkg/Library')
| -rw-r--r-- | MdePkg/Library/BaseRngLib/AArch64/ArmReadIdIsar0.S | 3 | ||||
| -rw-r--r-- | MdePkg/Library/BaseRngLib/AArch64/ArmRng.S | 1 |
2 files changed, 2 insertions, 2 deletions
diff --git a/MdePkg/Library/BaseRngLib/AArch64/ArmReadIdIsar0.S b/MdePkg/Library/BaseRngLib/AArch64/ArmReadIdIsar0.S index 82a00d3622..d30b63fe5c 100644 --- a/MdePkg/Library/BaseRngLib/AArch64/ArmReadIdIsar0.S +++ b/MdePkg/Library/BaseRngLib/AArch64/ArmReadIdIsar0.S @@ -25,7 +25,6 @@ GCC_ASM_EXPORT(ArmReadIdIsar0) # );
#
ASM_PFX(ArmReadIdIsar0):
+ AARCH64_BTI(c)
mrs x0, id_aa64isar0_el1 // Read ID_AA64ISAR0 Register
ret
-
-
diff --git a/MdePkg/Library/BaseRngLib/AArch64/ArmRng.S b/MdePkg/Library/BaseRngLib/AArch64/ArmRng.S index 5159f467e3..27a847b996 100644 --- a/MdePkg/Library/BaseRngLib/AArch64/ArmRng.S +++ b/MdePkg/Library/BaseRngLib/AArch64/ArmRng.S @@ -31,6 +31,7 @@ GCC_ASM_EXPORT(ArmRndr) # );
#
ASM_PFX(ArmRndr):
+ AARCH64_BTI(c)
mrs x1, RNDR
str x1, [x0]
cset x0, ne // RNDR sets NZCV to 0b0100 on failure
|