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ANDROID: KVM: arm64: Do not advertise FEAT_MOPS for protected guests

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Memory Copy and Memory Set Operations (MOPS) are not supported
for protected guests. Ensure that the feature is not on the allow
list in ID_AA64ISAR2_EL1.

Bug: 278749606
Bug: 369812426

Reported-by: Sebastian Ene <sebastianene@google.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: I1b3f951e3f68223cd64b4d5e0b0e17a75d2438f1
This commit is contained in:
Fuad Tabba 2024-09-26 15:42:20 +01:00
parent e05b2ba1f7
commit 3d3a7b6271
1 changed files with 0 additions and 1 deletions
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arch/arm64/include/asm/kvm_pkvm.h
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@ -236,7 +236,6 @@ void pkvm_host_reclaim_page(struct kvm *host_kvm, phys_addr_t ipa);
#define PVM_ID_AA64ISAR2_ALLOW (\
ARM64_FEATURE_MASK(ID_AA64ISAR2_EL1_ATS1A) | \
ARM64_FEATURE_MASK(ID_AA64ISAR2_EL1_GPA3) | \
ARM64_FEATURE_MASK(ID_AA64ISAR2_EL1_MOPS) | \
FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64ISAR2_EL1_APA3), ID_AA64ISAR2_EL1_APA3_PAuth) \
)