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KVM: Move IO APIC to its own lock

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The allows removal of irq_lock from the injection path.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Gleb Natapov
2009-08-24 11:54:25 +03:00
committed by Avi Kivity
parent 280aa177dc
commit eba0226bdf
7 changed files with 100 additions and 51 deletions
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5
arch/x86/kvm/lapic.c
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@@ -471,11 +471,8 @@ static void apic_set_eoi(struct kvm_lapic *apic)
trigger_mode = IOAPIC_LEVEL_TRIG;
else
trigger_mode = IOAPIC_EDGE_TRIG;
if (!(apic_get_reg(apic, APIC_SPIV) & APIC_SPIV_DIRECTED_EOI)) {
mutex_lock(&apic->vcpu->kvm->irq_lock);
if (!(apic_get_reg(apic, APIC_SPIV) & APIC_SPIV_DIRECTED_EOI))
kvm_ioapic_update_eoi(apic->vcpu->kvm, vector, trigger_mode);
mutex_unlock(&apic->vcpu->kvm->irq_lock);
}
}
static void apic_send_ipi(struct kvm_lapic *apic)