[Qemu-devel] [PULL for-2.9 1/1] vfio/pci-quirks: Exclude non-ioport BAR from NVIDIA quirk

[Alex Williamson <alex.williamson@redhat.com>]

The NVIDIA BAR5 quirk is targeting an ioport BAR.  Some older devices
have a BAR5 which is not ioport and can induce a segfault here.  Test
the BAR type to skip these devices.

Link: https://bugs.launchpad.net/qemu/+bug/1678466
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---
 hw/vfio/pci-quirks.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
index e9b493b939db..349085ea12bc 100644
--- a/hw/vfio/pci-quirks.c
+++ b/hw/vfio/pci-quirks.c
@@ -660,7 +660,7 @@ static void vfio_probe_nvidia_bar5_quirk(VFIOPCIDevice *vdev, int nr)
     VFIOConfigWindowQuirk *window;
 
     if (!vfio_pci_is(vdev, PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID) ||
-        !vdev->vga || nr != 5) {
+        !vdev->vga || nr != 5 || !vdev->bars[5].ioport) {
         return;
     }