> You told me " you need to set up Xen so that the driver is allowed to restore the HCA and PCI bridge config space." > But how can I set up xen to allow the driver to restore the HCA and pci config space? No idea -- I've never used xen pci-passthrough. But this line in your log might be a clue: > > [ 1298.655747] 1) see permissive attribute in sysfs