diff options
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 10 | ||||
| -rw-r--r-- | arch/x86/kvm/svm/svm.h | 1 |
2 files changed, 8 insertions, 3 deletions
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 253809216cc7..3b53a7ead04b 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -1215,6 +1215,7 @@ static void init_vmcb(struct vcpu_svm *svm) save->cr4 = 0; } svm->asid_generation = 0; + svm->asid = 0; svm->nested.vmcb12_gpa = 0; svm->vcpu.arch.hflags = 0; @@ -1755,12 +1756,11 @@ static void new_asid(struct vcpu_svm *svm, struct svm_cpu_data *sd) ++sd->asid_generation; sd->next_asid = sd->min_asid; svm->vmcb->control.tlb_ctl = TLB_CONTROL_FLUSH_ALL_ASID; + vmcb_mark_dirty(svm->vmcb, VMCB_ASID); } svm->asid_generation = sd->asid_generation; - svm->vmcb->control.asid = sd->next_asid++; - - vmcb_mark_dirty(svm->vmcb, VMCB_ASID); + svm->asid = sd->next_asid++; } static void svm_set_dr6(struct vcpu_svm *svm, unsigned long value) @@ -3570,6 +3570,10 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu) sync_lapic_to_cr8(vcpu); + if (unlikely(svm->asid != svm->vmcb->control.asid)) { + svm->vmcb->control.asid = svm->asid; + vmcb_mark_dirty(svm->vmcb, VMCB_ASID); + } svm->vmcb->save.cr2 = vcpu->arch.cr2; /* diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h index eb6fbafbe36c..fdff76eb6ceb 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -106,6 +106,7 @@ struct vcpu_svm { struct vmcb *vmcb; unsigned long vmcb_pa; struct svm_cpu_data *svm_data; + u32 asid; uint64_t asid_generation; uint64_t sysenter_esp; uint64_t sysenter_eip; |