| Message ID | 65900ff0224c5890ca10b73fb4dc63243bb21355.1394218994.git.jan.kiszka@siemens.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 22fa0f7..9abb21f 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8176,7 +8176,8 @@ static int vmx_check_nested_events(struct kvm_vcpu *vcpu, bool external_intr) } if (vcpu->arch.nmi_pending && nested_exit_on_nmi(vcpu)) { - if (vmx->nested.nested_run_pending) + if (vmx->nested.nested_run_pending || + vcpu->arch.interrupt.pending) return -EBUSY; nested_vmx_vmexit(vcpu, EXIT_REASON_EXCEPTION_NMI, NMI_VECTOR | INTR_TYPE_NMI_INTR |
According to SDM 27.2.3, IDT vectoring information will not be valid on vmexits caused by external NMIs. So we have to avoid creating such scenarios by delaying EXIT_REASON_EXCEPTION_NMI injection as long as we have a pending interrupt because that one would be migrated to L1's IDT vectoring info on nested exit. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> --- arch/x86/kvm/vmx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)