KVM: irq ack notification

Based on a patch from: Ben-Ami Yassour <benami@il.ibm.com>
which was based on a patch from: Amit Shah <amit.shah@qumranet.com>

Notify IRQ acking on PIC/APIC emulation. The previous patch missed two things:

- Edge triggered interrupts on IOAPIC
- PIC reset with IRR/ISR set should be equivalent to ack (LAPIC probably
needs something similar).

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
CC: Amit Shah <amit.shah@qumranet.com>
CC: Ben-Ami Yassour <benami@il.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
index 90911958d853..3c508afaa285 100644
--- a/arch/x86/kvm/irq.c
+++ b/arch/x86/kvm/irq.c
@@ -72,7 +72,7 @@ int kvm_cpu_get_interrupt(struct kvm_vcpu *v)
                 if (kvm_apic_accept_pic_intr(v)) {
                         s = pic_irqchip(v->kvm);
                         s->output = 0;          /* PIC */
-                        vector = kvm_pic_read_irq(s);
+                        vector = kvm_pic_read_irq(v->kvm);
                 }
         }
         return vector;