GPU Passthru to a windows 10vm


New Member
Jan 7, 2023
So I had this all working before having to reload the whole server and didn't keep notes so shame on me. But does anyone have a up to date set of directions on how to do it? I am almost there but when I boot the windows 10vm it just hangs and reboots into recovery mode after awhile. Also I get an error I've never seen before.

WARN: iothread is only valid with virtio disk or virtio-scsi-single controller, ignoring
kvm: -device vfio-pci,host=0000:0a:00.0,id=hostpci0.0,bus=ich9-pcie-port-1,addr=0x0.0,multifunction=on: Failed to mmap 0000:0a:00.0 BAR 1. Performance may be slow

Any ideas?


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