diff options
| -rw-r--r-- | hw/misc/vfio.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c index fe95e03d1d..f7f8a19ee8 100644 --- a/hw/misc/vfio.c +++ b/hw/misc/vfio.c @@ -3568,6 +3568,13 @@ static int vfio_initfn(PCIDevice *pdev) vdev->emulated_config_bits[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_MULTI_FUNCTION; + /* Restore or clear multifunction, this is always controlled by QEMU */ + if (vdev->pdev.cap_present & QEMU_PCI_CAP_MULTIFUNCTION) { + vdev->pdev.config[PCI_HEADER_TYPE] |= PCI_HEADER_TYPE_MULTI_FUNCTION; + } else { + vdev->pdev.config[PCI_HEADER_TYPE] &= ~PCI_HEADER_TYPE_MULTI_FUNCTION; + } + /* * Clear host resource mapping info. If we choose not to register a * BAR, such as might be the case with the option ROM, we can get |