From df203ec9a77a7236cb90456664d714423b98a977 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Sun, 23 Nov 2008 18:08:57 +0200 Subject: 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 --- arch/x86/kvm/vmx.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/x86/kvm/vmx.c') diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index f5958a7823f4..7ea485543cf8 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -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); } } -- cgit v1.2.3