Done some more digging.
I can boot my macos vm using QXL instead of a passthrough GPU, even if i
passthrough the USB device (not pci controller). So its definitely only
passing through PCI devices like graphics cards that breaks things.
So this works in qemu terms:
-usb -device usb-host,hostbus=1,hostaddr=3 \
This breaks things:
-device vfio-pci,host=02:00.0,multifunction=on \
-device vfio-pci,host=02:00.1
Oddly enough an Ubuntu 20.04 vm works fine with the gpu and usb passed
through.
Added the qemu shell scripts to the gist:
https://gist.github.com/sej7278/766043a69c76308f84cfa14b3f3a924f
Regards.
--
Simon John
