KVM: IOAPIC/LAPIC: Enable NMI support

[avi: fix ia64 build breakage]

Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 18 insertions, 2 deletions

diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 44589088941f..d0c668c6959e 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -146,6 +146,11 @@ static int ioapic_inj_irq(struct kvm_ioapic *ioapic,
         return kvm_apic_set_irq(vcpu, vector, trig_mode);
 }
 
+static void ioapic_inj_nmi(struct kvm_vcpu *vcpu)
+{
+        kvm_inject_nmi(vcpu);
+}
+
 static u32 ioapic_get_delivery_bitmask(struct kvm_ioapic *ioapic, u8 dest,
                                        u8 dest_mode)
 {
@@ -239,8 +244,19 @@ static int ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
                         }
                 }
                 break;
-
-                /* TODO: NMI */
+        case IOAPIC_NMI:
+                for (vcpu_id = 0; deliver_bitmask != 0; vcpu_id++) {
+                        if (!(deliver_bitmask & (1 << vcpu_id)))
+                                continue;
+                        deliver_bitmask &= ~(1 << vcpu_id);
+                        vcpu = ioapic->kvm->vcpus[vcpu_id];
+                        if (vcpu)
+                                ioapic_inj_nmi(vcpu);
+                        else
+                                ioapic_debug("NMI to vcpu %d failed\n",
+                                                vcpu->vcpu_id);
+                }
+                break;
         default:
                 printk(KERN_WARNING "Unsupported delivery mode %d\n",
                        delivery_mode);