On Fri, Feb 19, 2010 at 10:56:08AM -0500, Michael D Labriola wrote:
> I cannot pass a PCI card w/ a shared IRQ to a domU.
>
> If my PCI card is in a different slot, and gets a different IRQ, it works.
> But in this one particular slot, it gets an IRQ that's shared with a
> bunch of other bits of gear (USB, firewire, and ATA controller). With the
> shared IRQ, not only can I not pass the card to my domU, my dom0 freaks
> and dies as well...
>
> Both my dom0 and domU are using the latest xen/master pv_ops kernel and
> I'm using Xen 3.4.2 (for now). My domU is a pv domain.
There is a missing patch that I haven't pushed in the pcifront branch:
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index e138053..923de2e 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -25,7 +25,7 @@ static int xen_pcifront_enable_irq(struct pci_dev *dev)
if (dev->irq < 0)
return -EINVAL;
- rc = xen_allocate_pirq(dev->irq, 0, "pcifront");
+ rc = xen_allocate_pirq(dev->irq, 1 /* share */, "pcifront");
if (rc < 0) {
dev_warn(&dev->dev, "Xen PCI IRQ: %d, failed to register:%d\n",
dev->irq, rc);
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
Home