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KVM: arm64: Advertise support for FEAT_DoubleFault2 

KVM's external abort injection now respects the exception routing
wreckage due to FEAT_DoubleFault2. Advertise the feature.

Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20250708172532.1699409-23-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
This commit is contained in:
Oliver Upton 2025-07-08 10:25:27 -07:00
parent 075c2dc736
commit a3c4a00dbe
1 changed files with 0 additions and 2 deletions
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2
arch/arm64/kvm/sys_regs.c
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@ -1613,7 +1613,6 @@ static u64 __kvm_read_sanitised_id_reg(const struct kvm_vcpu *vcpu,
val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_GCS); val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_GCS);
val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_THE); val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_THE);
val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_MTEX); val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_MTEX);
val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_DF2);
val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_PFAR); val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_PFAR);
val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_MPAM_frac); val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_MPAM_frac);
break; break;
@ -2884,7 +2883,6 @@ static const struct sys_reg_desc sys_reg_descs[] = {
ID_AA64PFR0_EL1_FP)), ID_AA64PFR0_EL1_FP)),
ID_FILTERED(ID_AA64PFR1_EL1, id_aa64pfr1_el1, ID_FILTERED(ID_AA64PFR1_EL1, id_aa64pfr1_el1,
~(ID_AA64PFR1_EL1_PFAR | ~(ID_AA64PFR1_EL1_PFAR |
ID_AA64PFR1_EL1_DF2 |
ID_AA64PFR1_EL1_MTEX | ID_AA64PFR1_EL1_MTEX |
ID_AA64PFR1_EL1_THE | ID_AA64PFR1_EL1_THE |
ID_AA64PFR1_EL1_GCS | ID_AA64PFR1_EL1_GCS |