On 20.10.20 22:44, Peter Xu wrote: > On Tue, Oct 20, 2020 at 10:01:12PM +0200, David Hildenbrand wrote: >> Thanks ... but I have an AMD system. Will try to find out how to get >> that running with AMD :)
I just did some more testing with the oldish GPU I have for that purpose. Seems to work, at least I get video output that keeps on working - did not try advanced things yet. I use -device vfio-pci,host=05:00.0,x-vga=on -device vfio-pci,host=05:00.1 when adding "-device intel-iommu", I got "qemu-system-x86_64: -device vfio-pci,host=05:00.1: vfio 0000:05:00.1: group 23 used in multiple address spaces" ... so I poked around the internet a bit and got it running with -device intel-iommu,caching-mode=on \ -device pcie-pci-bridge,addr=1e.0,id=pci.1 \ -device vfio-pci,host=05:00.0,xvga=on,bus=pci.1,addr=1.0,multifunction=on \ -device vfio-pci,host=05:00.1,bus=pci.1,addr=1.1 \ Things still seem to be working, so I assume it works (I guess ?!). -- Thanks, David / dhildenb
