KVM: x86: don't notify userspace IOAPIC on edge-triggered interrupt EOI

Commit 13db77347db1 ("KVM: x86: don't notify userspace IOAPIC on edge
EOI") said, edge-triggered interrupts don't set a bit in TMR, which means
that IOAPIC isn't notified on EOI. And var level indicates level-triggered
interrupt.
But commit 3159d36ad799 ("KVM: x86: use generic function for MSI parsing")
replace var level with irq.level by mistake. Fix it by changing irq.level
to irq.trig_mode.

Cc: stable@vger.kernel.org
Fixes: 3159d36ad799 ("KVM: x86: use generic function for MSI parsing")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/irq_comm.c b/arch/x86/kvm/irq_comm.c
index 79afa0bb5f410f701e18370b38f9aeb182f53cfc..c47d2acec52934eae639a8c4b347fbfa660caca6 100644 (file)
--- a/arch/x86/kvm/irq_comm.c
+++ b/arch/x86/kvm/irq_comm.c
@@ -417,7 +417,7 @@ void kvm_scan_ioapic_routes(struct kvm_vcpu *vcpu,
 
                        kvm_set_msi_irq(vcpu->kvm, entry, &irq);
 
-                       if (irq.level &&
+                       if (irq.trig_mode &&
                            kvm_apic_match_dest(vcpu, NULL, APIC_DEST_NOSHORT,
                                                irq.dest_id, irq.dest_mode))
                                __set_bit(irq.vector, ioapic_handled_vectors);