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| author | Maxim Levitsky <mlevitsk@redhat.com> | 2021-08-10 22:52:45 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-08-20 22:06:24 +0200 |
| commit | 4628efcd4e8963a41e877318cd10346dea9a6e00 (patch) | |
| tree | 7dd9616b87e29388f01eca47ebb110b270e1bc4e /arch/x86 | |
| parent | KVM: x86: APICv: fix race in kvm_request_apicv_update on SVM (diff) | |
| download | linux-4628efcd4e8963a41e877318cd10346dea9a6e00.tar.xz linux-4628efcd4e8963a41e877318cd10346dea9a6e00.zip | |
KVM: SVM: add warning for mistmatch between AVIC vcpu state and AVIC inhibition
It is never a good idea to enter a guest on a vCPU when the
AVIC inhibition state doesn't match the enablement of
the AVIC on the vCPU.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210810205251.424103-11-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index b1662d6baa71..22376fdd94f8 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -3779,6 +3779,8 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu) pre_svm_run(vcpu); + WARN_ON_ONCE(kvm_apicv_activated(vcpu->kvm) != kvm_vcpu_apicv_active(vcpu)); + sync_lapic_to_cr8(vcpu); if (unlikely(svm->asid != svm->vmcb->control.asid)) { |