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; } -- 2.46.0
