Commit 264ff01d authored by Jan Kiszka's avatar Jan Kiszka Committed by Avi Kivity

KVM: VMX: Fix pending NMI-vs.-IRQ race for user space irqchip

As with the kernel irqchip, don't allow an NMI to stomp over an already
injected IRQ; instead wait for the IRQ injection to be completed.
Signed-off-by: default avatarJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent defaf158
......@@ -2486,7 +2486,9 @@ static void do_interrupt_requests(struct kvm_vcpu *vcpu,
vmx_update_window_states(vcpu);
if (vcpu->arch.nmi_pending && !vcpu->arch.nmi_injected) {
if (vcpu->arch.nmi_window_open) {
if (vcpu->arch.interrupt.pending) {
enable_nmi_window(vcpu);
} else if (vcpu->arch.nmi_window_open) {
vcpu->arch.nmi_pending = false;
vcpu->arch.nmi_injected = true;
} else {
......
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