diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index ee340d329447..67ad4523a1e6 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -714,6 +714,19 @@ static inline void vcpu_set_hcrx(struct kvm_vcpu *vcpu) if (cpus_have_final_cap(ARM64_HAS_NV3) && vcpu_has_nv(vcpu) && vcpu_el2_e2h_is_set(vcpu)) { vcpu->arch.hcrx_el2 |= HCRX_EL2_NVTGE; + + /* + * If the guest is NV2-capable, then we need to see + * all the TLBIs, as configured in HCR_EL2. + * Otherwise, relax the TLBI traps to only TGE=0. + */ + if (!kvm_has_nv2(vcpu->kvm)) { + vcpu->arch.hcrx_el2 |= (HCRX_EL2_NVnTTLB | + HCRX_EL2_NVnTTLBIS); + + if (kvm_has_feat(kvm, ID_AA64ISAR0_EL1, TLB, OS)) + vcpu->arch.hcrx_el2 |= HCRX_EL2_NVnTTLBOS; + } } } }