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KVM: Fix RTC interrupt coalescing tracking

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This reverts most of the f1ed0450a5. After
the commit kvm_apic_set_irq() no longer returns accurate information
about interrupt injection status if injection is done into disabled
APIC. RTC interrupt coalescing tracking relies on the information to be
accurate and cannot recover if it is not.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
This commit is contained in:
Gleb Natapov
2013-06-24 15:19:15 +03:00
parent 489223edf2
commit 24f7bb52e9
3 changed files with 38 additions and 30 deletions
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9
virt/kvm/irq_comm.c
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@@ -91,8 +91,7 @@ int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src,
if (!kvm_is_dm_lowest_prio(irq)) {
if (r < 0)
r = 0;
kvm_apic_set_irq(vcpu, irq, dest_map);
r++;
r += kvm_apic_set_irq(vcpu, irq, dest_map);
} else if (kvm_lapic_enabled(vcpu)) {
if (!lowest)
lowest = vcpu;
@@ -101,10 +100,8 @@ int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src,
}
}
if (lowest) {
kvm_apic_set_irq(lowest, irq, dest_map);
r = 1;
}
if (lowest)
r = kvm_apic_set_irq(lowest, irq, dest_map);
return r;
}