In kvm-ia64, we use the same guest firmware (GFW)as in Xen, GFW uses PRT to present PCI interrupt routing, all PCI devices' interrupt pins connect to IOAPIC, which doesn't match with kvm-ia64 Qemu PCI interrupt routing.
This patch modify Qemu PCI interupt routing code to match with GFW, Then PCI devices in qemu can work in kvm-ia64, for exmaple, NIC Signed-off-by: Anthony Xu < [EMAIL PROTECTED] > diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c index 99a1736..80c116c 100644 --- a/virt/kvm/ioapic.c +++ b/virt/kvm/ioapic.c @@ -272,7 +272,11 @@ 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.fields.polarity; +// polarity of all devices in qemu is active high +// regardless of ioapic setting + +// level ^= entry.fields.polarity; + if (!level) ioapic->irr &= ~mask; else { -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html