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KVM: make irq ack notifications aware of routing table

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IRQ ack notifications assume an identity mapping between pin->gsi,
which might not be the case with, for example, HPET.

Translate before acking.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Acked-by: Gleb Natapov <gleb@redhat.com>
This commit is contained in:
Marcelo Tosatti
2009-01-27 15:12:38 -02:00
committed by Avi Kivity
parent 934d534f8a
commit 44882eed2e
5 changed files with 21 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
virt/kvm/ioapic.c
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@@ -293,20 +293,20 @@ void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level)
}
}
static void __kvm_ioapic_update_eoi(struct kvm_ioapic *ioapic, int gsi,
static void __kvm_ioapic_update_eoi(struct kvm_ioapic *ioapic, int pin,
int trigger_mode)
{
union ioapic_redir_entry *ent;
ent = &ioapic->redirtbl[gsi];
ent = &ioapic->redirtbl[pin];
kvm_notify_acked_irq(ioapic->kvm, gsi);
kvm_notify_acked_irq(ioapic->kvm, KVM_IRQCHIP_IOAPIC, pin);
if (trigger_mode == IOAPIC_LEVEL_TRIG) {
ASSERT(ent->fields.trig_mode == IOAPIC_LEVEL_TRIG);
ent->fields.remote_irr = 0;
if (!ent->fields.mask && (ioapic->irr & (1 << gsi)))
ioapic_service(ioapic, gsi);
if (!ent->fields.mask && (ioapic->irr & (1 << pin)))
ioapic_service(ioapic, pin);
}
}