Comment 19 for bug 1781891

I followed the instructions to unbind the device from xhci and bind it to vfio and afterwords I was able to boot the VM with the PCI card set up as pass-through. However, the Windows VM only listed it as an unknown PCI device and could not find the device drivers (VIA VL805) and I could not find any driver on the internet, so I tried to roll back the changes so that the one USB device that did work could still work. This is where I am stuck now since a reboot does not load the xhci device as before. I was under the impression unloading the device using the given instructions would only change it until I reboot since I have not changed anything in etc. I tried binding it to xhci again, but could not. I would really appreciate some help getting it back to how it was since I can only do these tests after hours.