提交 a52315e1 编写于 作者: J Julian Stecklina 提交者: Avi Kivity

KVM: Don't mistreat edge-triggered INIT IPI as INIT de-assert. (LAPIC)

If the guest programs an IPI with level=0 (de-assert) and trig_mode=0 (edge),
it is erroneously treated as INIT de-assert and ignored, but to quote the
spec: "For this delivery mode [INIT de-assert], the level flag must be set to
0 and trigger mode flag to 1."
Signed-off-by: NJulian Stecklina <js@alien8.de>
Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>
上级 b93a3553
...@@ -433,7 +433,7 @@ static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode, ...@@ -433,7 +433,7 @@ static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode,
break; break;
case APIC_DM_INIT: case APIC_DM_INIT:
if (level) { if (!trig_mode || level) {
result = 1; result = 1;
vcpu->arch.mp_state = KVM_MP_STATE_INIT_RECEIVED; vcpu->arch.mp_state = KVM_MP_STATE_INIT_RECEIVED;
kvm_make_request(KVM_REQ_EVENT, vcpu); kvm_make_request(KVM_REQ_EVENT, vcpu);
......
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