tree 695376329214f1f3bd71da2989a9d837387046fa
parent 1ec2405c7cbf3afa7598c6b7546c81aa0cac78dc
author Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> 1573762519 -0600
committer Paolo Bonzini <pbonzini@redhat.com> 1580912264 +0100

kvm: ioapic: Lazy update IOAPIC EOI

In-kernel IOAPIC does not receive EOI with AMD SVM AVIC
since the processor accelerate write to APIC EOI register and
does not trap if the interrupt is edge-triggered.

Workaround this by lazy check for pending APIC EOI at the time when
setting new IOPIC irq, and update IOAPIC EOI if no pending APIC EOI.

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>