On Thu, Jan 03, 2008 at 07:11:32PM +0100, Guido Guenther wrote:
> simulate the pressing of a fixed feature acpi power button. The patch
> has one issue though, it currently needs --no-kvm-irqchip (see my other
> mail). Please apply if appropriate.
When running without --no-kvm-irqchip the ACPI irq never gets delivered,
the ACPI interrupt always stays at zero in /proc/interrupt. However I
can hack around this with:
--- a/kernel/ioapic.c
+++ b/kernel/ioapic.c
@@ -248,6 +253,8 @@ void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq,
int level)
if (irq >= 0 && irq < IOAPIC_NUM_PINS) {
entry = ioapic->redirtbl[irq];
+ if(irq == 10) /* ACPI interrupt */
+ entry.fields.polarity = 0;
level ^= entry.fields.polarity;
if (!level)
ioapic->irr &= ~mask;
If I understand the docs correctly the ACPI SCI should be an (active low
not active high) leveled interrupt. Where would be the proper place to
fix this?
-- Guido
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