I’m trying to set up a GPU Passthrough gaming HVM through this guide (Qubes-Community/gaming-hvm.md, and I have the GPU Passthrough working on a standalone Fedora Qube through a separate monitor.
I thought that the obvious solution for user input would be passing through an entire PCI USB 3.0 controller I had lying around. However, this doesn’t seem to work. Running
lspci on the guest shows that it is properly seeing the controller, and the xhci driver is being used for it. However,
lsusb shows no keyboard or mouse connected at all (besides the QEMU tablet).
If I attach the controller to sys-usb, then it works like a charm. I’m not entirely sure what is failing here, as
dmesg or any qube logs are not giving me any tips I know of. The only thing I can possibly think of that is causing this is that I have to put
pci=nomsi in the HVM’s grub parameters, but that is speculation, and that option is needed for the GPU to work anyways.
Can anyone provide some help? Or am I looking at this the wrong way, and I should try a different method for keyboard/mouse input?