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KVM: arm64: nv: Honor absence of FEAT_PAN2

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If our guest has been configured without PAN2, make sure that
AT S1E1{R,W}P will generate an UNDEF.

Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Marc Zyngier 2024-06-19 08:16:44 +01:00
parent 0a0f25b71c
commit 90659853fe
1 changed files with 4 additions and 0 deletions
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4
arch/arm64/kvm/sys_regs.c
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@ -4600,6 +4600,10 @@ void kvm_calculate_traps(struct kvm_vcpu *vcpu)
HFGITR_EL2_TLBIRVAAE1OS |
HFGITR_EL2_TLBIRVAE1OS);
if (!kvm_has_feat(kvm, ID_AA64MMFR1_EL1, PAN, PAN2))
kvm->arch.fgu[HFGITR_GROUP] |= (HFGITR_EL2_ATS1E1RP |
HFGITR_EL2_ATS1E1WP);
if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, S1PIE, IMP))
kvm->arch.fgu[HFGxTR_GROUP] |= (HFGxTR_EL2_nPIRE0_EL1 |
HFGxTR_EL2_nPIR_EL1);