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| author | Kristina Martsenko <kristina.martsenko@arm.com> | 2023-05-09 15:22:29 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2023-06-05 17:05:31 +0100 |
| commit | b1319c0e955933eae918a8a95c5361378ca86968 (patch) | |
| tree | 5cb8845e718eeccec9aa599e77a87962035eea03 | |
| parent | f32c053b9806e42209d40e9ce7ed6f7f8be3be3b (diff) | |
| download | linux-b1319c0e955933eae918a8a95c5361378ca86968.tar.gz linux-b1319c0e955933eae918a8a95c5361378ca86968.tar.bz2 linux-b1319c0e955933eae918a8a95c5361378ca86968.zip | |
arm64: mops: don't disable host MOPS instructions from EL2
To allow nVHE host EL0 and EL1 to use FEAT_MOPS instructions, configure
EL2 to not cause these instructions to be treated as UNDEFINED. A VHE
host is unaffected by this control.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com>
Link: https://lore.kernel.org/r/20230509142235.3284028-6-kristina.martsenko@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | arch/arm64/include/asm/kvm_arm.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h index 7bb2fbddda54..d2d4f4cd12b8 100644 --- a/arch/arm64/include/asm/kvm_arm.h +++ b/arch/arm64/include/asm/kvm_arm.h @@ -94,7 +94,7 @@ #define HCR_HOST_VHE_FLAGS (HCR_RW | HCR_TGE | HCR_E2H) #define HCRX_GUEST_FLAGS (HCRX_EL2_SMPME) -#define HCRX_HOST_FLAGS 0 +#define HCRX_HOST_FLAGS (HCRX_EL2_MSCEn) /* TCR_EL2 Registers bits */ #define TCR_EL2_RES1 ((1U << 31) | (1 << 23)) |