Signed-off-by: Jan Beulich --- a/xen/drivers/passthrough/pci.c +++ b/xen/drivers/passthrough/pci.c @@ -445,6 +445,10 @@ int __init scan_pci_devices(void) spin_unlock(&pcidevs_lock); return -EINVAL; } + + if ( !func && !(pci_conf_read8(bus, dev, func, + PCI_HEADER_TYPE) & 0x80) ) + break; } } }