diff options
| author | Kristina Martsenko <kristina.martsenko@arm.com> | 2023-09-22 14:25:08 +0300 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2023-10-09 22:54:25 +0300 |
| commit | e0bb80c62cfd0c289c841d35e412e633299530e3 (patch) | |
| tree | 8f3b31ed6e6271adb455e0c6de4e78aa459572bc /arch/arm64/kvm/hyp/include | |
| parent | 2de451a329cf662beeba71f63c7f83ee24ca6642 (diff) | |
| download | linux-e0bb80c62cfd0c289c841d35e412e633299530e3.tar.xz | |
KVM: arm64: Expose MOPS instructions to guests
Expose the Armv8.8 FEAT_MOPS feature to guests in the ID register and
allow the MOPS instructions to be run in a guest. Only expose MOPS if
the whole system supports it.
Note, it is expected that guests do not use these instructions on MMIO,
similarly to other instructions where ESR_EL2.ISV==0 such as LDP/STP.
Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230922112508.1774352-3-kristina.martsenko@arm.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'arch/arm64/kvm/hyp/include')
| -rw-r--r-- | arch/arm64/kvm/hyp/include/nvhe/fixed_config.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h b/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h index 37440e1dda93..e91922daa8ca 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h +++ b/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h @@ -197,7 +197,8 @@ #define PVM_ID_AA64ISAR2_ALLOW (\ ARM64_FEATURE_MASK(ID_AA64ISAR2_EL1_GPA3) | \ - ARM64_FEATURE_MASK(ID_AA64ISAR2_EL1_APA3) \ + ARM64_FEATURE_MASK(ID_AA64ISAR2_EL1_APA3) | \ + ARM64_FEATURE_MASK(ID_AA64ISAR2_EL1_MOPS) \ ) u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id); |