From: Chris Lalancette <clalance@redhat.com>
Date: Wed, 16 Jun 2010 21:11:13 +0000 (-0400)
Subject: KVM: x86: In DM_LOWEST, only deliver interrupts to vcpus with enabled LAPIC's
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=aefd18f01ee848448d834c80e601ccff61515811;p=deliverable%2Flinux.git

KVM: x86: In DM_LOWEST, only deliver interrupts to vcpus with enabled LAPIC's

Otherwise we might try to deliver a timer interrupt to a cpu that
can't possibly handle it.

Signed-off-by: Chris Lalancette <clalance@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---

diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index 52f412f16be3..06cf61e729d2 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -100,7 +100,7 @@ int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src,
 			if (r < 0)
 				r = 0;
 			r += kvm_apic_set_irq(vcpu, irq);
-		} else {
+		} else if (kvm_lapic_enabled(vcpu)) {
 			if (!lowest)
 				lowest = vcpu;
 			else if (kvm_apic_compare_prio(vcpu, lowest) < 0)