Commit df203ec9 authored Nov 23, 2008 by Avi Kivity

KVM: VMX: Conditionally request interrupt window after injecting irq



If we're injecting an interrupt, and another one is pending, request
an interrupt window notification so we don't have excess latency on the
second interrupt.

This shouldn't happen in practice since an EOI will be issued, giving a second
chance to request an interrupt window, but...

Signed-off-by: Avi Kivity <avi@redhat.com>

parent 8fe07367

arch/x86/kvm/vmx.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -3304,6 +3304,8 @@ static void vmx_intr_assist(struct kvm_vcpu *vcpu)
		if (vcpu->arch.interrupt.pending) {
		vmx_inject_irq(vcpu, vcpu->arch.interrupt.nr);
		kvm_timer_intr_post(vcpu, vcpu->arch.interrupt.nr);
		if (kvm_cpu_has_interrupt(vcpu))
		enable_irq_window(vcpu);
		}
		}