On 3/11/25 00:58, Vasilis Liaskovitis wrote:
The ATI BAR4 quirk is targeting an ioport BAR. Older devices may
have a BAR4 which is not an ioport, causing a segfault here. Test
the BAR type to skip these devices.
Similar to
"8f419c5b: vfio/pci-quirks: Exclude non-ioport BAR from NVIDIA quirk"
Untested, as I don't have the card to test.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2856
Signed-off-by: Vasilis Liaskovitis <vliaskovi...@suse.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 c53591fe2b..15598bbaf4 100644
--- a/hw/vfio/pci-quirks.c
+++ b/hw/vfio/pci-quirks.c
@@ -403,7 +403,7 @@ static void vfio_probe_ati_bar4_quirk(VFIOPCIDevice *vdev,
int nr)
/* This windows doesn't seem to be used except by legacy VGA code */
if (!vfio_pci_is(vdev, PCI_VENDOR_ID_ATI, PCI_ANY_ID) ||
- !vdev->vga || nr != 4) {
+ !vdev->vga || nr != 4 || !vdev->bars[4].ioport) {
return;
}
Applied to vfio-next.
Thanks,
C.
