| Message ID | 20250215173816.3767330-4-maz@kernel.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | KVM: arm64: NV userspace ABI | expand |
diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c index 0c9387d2f5070..ed3add7d32f66 100644 --- a/arch/arm64/kvm/nested.c +++ b/arch/arm64/kvm/nested.c @@ -1034,6 +1034,8 @@ int kvm_init_nv_sysregs(struct kvm_vcpu *vcpu) res0 |= (HCR_TEA | HCR_TERR); if (!kvm_has_feat(kvm, ID_AA64MMFR1_EL1, LO, IMP)) res0 |= HCR_TLOR; + if (!kvm_has_feat(kvm, ID_AA64MMFR1_EL1, VH, IMP)) + res0 |= HCR_E2H; if (!kvm_has_feat(kvm, ID_AA64MMFR4_EL1, E2H0, IMP)) res1 |= HCR_E2H; set_sysreg_masks(kvm, HCR_EL2, res0, res1);
Enforce HCR_EL2.E2H being RES0 when VHE is disabled, so that we can actually rely on that bit never being flipped behind our back. Signed-off-by: Marc Zyngier <maz@kernel.org> --- arch/arm64/kvm/nested.c | 2 ++ 1 file changed, 2 insertions(+)