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 52f412f16be39215628655f8576e5f1e0499806c..06cf61e729d2a85ce9b4132d31e70d815cd911ab 100644 (file)
--- 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)