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| author | Jan Kiszka <jan.kiszka@siemens.com> | 2008-11-24 12:26:19 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2008-12-31 16:55:47 +0200 |
| commit | 264ff01d55b456932cef03082448b41d2edeb6a1 (patch) | |
| tree | 7b660410647d36dac8abe94dd4721361b033a035 | |
| parent | defaf1587c5d7dff828f6f11c8941e5bcef00f50 (diff) | |
| download | op-kernel-dev-264ff01d55b456932cef03082448b41d2edeb6a1.zip op-kernel-dev-264ff01d55b456932cef03082448b41d2edeb6a1.tar.gz | |
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: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/x86/kvm/vmx.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index e446f23..487e1dc 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -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 { |
