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

Commit 13db77347d ("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 3159d36ad7 ("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: 3159d36ad7 ("KVM: x86: use generic function for MSI parsing")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Miaohe Lin 2020-02-14 10:32:38 +08:00 committed by Paolo Bonzini
parent b78a8552d7
commit 7455a83276
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/irq_comm.c
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@ -417,7 +417,7 @@ void kvm_scan_ioapic_routes(struct kvm_vcpu *vcpu,
kvm_set_msi_irq(vcpu->kvm, entry, &irq); kvm_set_msi_irq(vcpu->kvm, entry, &irq);
if (irq.level && if (irq.trig_mode &&
kvm_apic_match_dest(vcpu, NULL, APIC_DEST_NOSHORT, kvm_apic_match_dest(vcpu, NULL, APIC_DEST_NOSHORT,
irq.dest_id, irq.dest_mode)) irq.dest_id, irq.dest_mode))
__set_bit(irq.vector, ioapic_handled_vectors); __set_bit(irq.vector, ioapic_handled_vectors);