In the event that a pci-assign device is added to a chipset that
hasn't yet implemented the INTx routing interface, exit gracefully
instead of killing the VM. I'm sure we'll implement this for q35,
but there's no reason for such a harsh response.
Signed-off-by: Alex Williamson <alex.william...@redhat.com>
---
hw/kvm/pci-assign.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/hw/kvm/pci-assign.c b/hw/kvm/pci-assign.c
index 05b93d9..7ce0f37 100644
--- a/hw/kvm/pci-assign.c
+++ b/hw/kvm/pci-assign.c
@@ -887,6 +887,12 @@ static int assign_intx(AssignedDevice *dev)
intx_route = pci_device_route_intx_to_irq(&dev->dev, dev->intpin);
assert(intx_route.mode != PCI_INTX_INVERTED);
+ if (intx_route.mode == PCI_INTX_NOROUTE) {
+ error_report("pci-assign: chipset provides no INTx routing "
+ "information, but device supports INTx interrupt
mode.\n");
+ pci_device_set_intx_routing_notifier(&dev->dev, NULL);
+ return -ENOTSUP;
+ }
if (dev->intx_route.mode == intx_route.mode &&
dev->intx_route.irq == intx_route.irq) {
