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KVM: arm64: nv: Advertise FEAT_SpecSEI to NV-enabled VMs

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FEAT_SpecSEI is an informational feature describing whether speculative
loads may generate SErrors. Since there are already cases where KVM
reinjects an SError into the VM it is already possible this may happen
due to a speculative load within the VM.

Stop hiding the feature from NV-enabled VMs.

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Oliver Upton 2025-09-12 14:22:56 -07:00 committed by Marc Zyngier
parent 952387c9d3
commit fe2c9cd439
1 changed files with 0 additions and 1 deletions
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arch/arm64/kvm/nested.c
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@ -1529,7 +1529,6 @@ u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val)
ID_AA64MMFR1_EL1_nTLBPA |
ID_AA64MMFR1_EL1_ETS |
ID_AA64MMFR1_EL1_XNX |
ID_AA64MMFR1_EL1_SpecSEI |
ID_AA64MMFR1_EL1_HAFDBS);
/* FEAT_E2H0 implies no VHE */
if (test_bit(KVM_ARM_VCPU_HAS_EL2_E2H0, kvm->arch.vcpu_features))