repository: /home/avi/kvm/linux-2.6
branch: avoid-spurious-edge-irq
commit 865a447baf2dba52ce0751cf359675c62795ec63
Author: Avi Kivity <[EMAIL PROTECTED]>
Date: Wed Sep 19 16:08:53 2007 +0200
KVM: Implement ioapic irq polarity bit
Reverse the sense of the irq level if the polarity bit is set.
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
diff --git a/drivers/kvm/ioapic.c b/drivers/kvm/ioapic.c
index 91ce92d..d068313 100644
--- a/drivers/kvm/ioapic.c
+++ b/drivers/kvm/ioapic.c
@@ -243,6 +243,7 @@ void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq,
int level)
if (irq >= 0 && irq < IOAPIC_NUM_PINS) {
entry = ioapic->redirtbl[irq];
+ level ^= entry->polarity;
if (!level)
ioapic->irr &= ~mask;
else {
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