Hi I have a working configuration with ubuntu guest. I tried using 1G pages and found that I need at least 4G for the linux driver to load. I am using the standard XFX roms that I used to flash the BIOS which are signed and not modded. I have tried taking the working native windows configuration and booting that up via qemu and after it installs the acpi drivers is fails with the same reason..
This command line works for macOs sierra (unacellerated but it does the full screen 1920x2060 and 3840x2060) and works with glamour enabled Ubuntu guest. I also found that you get a corrupt screen if you don't enable glamour under gentoo. img=win bios=/mnt/work/vm/etc mem="-m 4G -mem-path /mnt/hugepg1g" #cpus="-cpu host,nx=on,kvm=on,vendor=GenuineIntel -smp cpus=4,sockets=1,cores=2,threads=2" cpus="-cpu host,+kvmclock,+kvmclock-stable-bit,nx=on,kvm=on,vendor=GenuineIntel -smp cpus=4,sockets=1,cores=2,threads=2" monitor="-monitor none" # rombar=1 = good vfio="-device vfio-pci,host=01:00.0,x-vga=off,multifunction=on,rombar=1,romfile=/${bios}/xfx-rx480-stock.rom,addr=10.0 -device vfio-pci,host=01:00.1,addr=10.1" machine="-machine q35,accel=kvm,usb=off,vmport=off,kernel_irqchip=on" net="-netdev user,id=vmnic,restrict=n,hostfwd=tcp::1022-:22 -device virtio-net-pci,romfile=,netdev=vmnic" display="-display none" graphic="" sound="" inputs="" image_file="windoze.img" serial="-serial stdio" if [ ! -z "${1}" ] ; then image_file="${1}" fi for dev in 0000:01:00.0 0000:01:00.1 ; do vendor="$(cat /sys/bus/pci/devices/${dev}/vendor)" device="$(cat /sys/bus/pci/devices/${dev}/device)" if [ -e "/sys/bus/pci/devices/${dev}/driver" ]; then echo "${dev}" > "/sys/bus/pci/devices/${dev}/driver/unbind" fi echo "${vendor}" "${device}" > /sys/bus/pci/drivers/vfio-pci/new_id done inputs="-usbdevice host:xxxx:yyyy" if [ ! -f "${image_file}" ] ; then loop_dev="$(losetup --find)" qemu-img create -f raw "${image_file}" 12G sgdisk --zap-all "${image_file}" sgdisk --set-alignment=1 --new=1:34:131071 "${image_file}" sgdisk --typecode 1:ef00 "${image_file}" sgdisk --set-alignment=1 --new=2:131072: "${image_file}" sgdisk --typecode 2:8300 "${image_file}" sgdisk --partition-guid=1:R sgdisk --partition-guid=2:R gdisk -l "${image_file}" tmpMount="$(mktemp -d)" losetup --partscan "${loop_dev}" "${image_file}" mkfs.vfat -f1 -F12 "${loop_dev}"p1 mount -orw "${loop_dev}"p1 "${tmpMount}" mkdir -p "${tmpMount}"/EFI/BOOT cp /mnt/work/os/ar//lib/modules/current/../bootx64.efi "${tmpMount}"/EFI/BOOT/BOOTX64.EFI umount "${tmpMount}" mkfs.ext4 -O ^has_journal,extent,huge_file,flex_bg,inline_data,64bit,dir_nlink,extra_isize,bigalloc,sparse_super2 -E num_backup_sb=0 -G 32 -C 4096 -I 256 "${loop_dev}"p2 tune2fs -E hash_alg=tea -e remount-ro "${loop_dev}"p2 mount -t ext4 -onoatime,nodiratime,user_xattr,acl,noauto,delalloc,rw "${loop_dev}"p2 "${tmpMount}" rsync -SHax /mnt/work/os/ar/ "${tmpMount}"/ umount "${tmpMount}" rmdir "${tmpMount}" losetup --detach "${loop_dev}" fi qemu-system-x86_64 \ -nodefaults \ -nodefconfig \ -enable-kvm \ -no-fd-bootchk \ -no-user-config \ -no-hpet \ -rtc base=utc,clock=host,driftfix=none \ ${mem} \ ${machine} \ ${cpus} \ -L ${bios} \ -drive if=pflash,format=raw,readonly,file=${bios}/OVMF_CODE-pure-efi.fd \ -drive if=pflash,format=raw,readonly,file=${bios}/OVMF_1600_600-efi.fd \ ${vfio} \ -drive id=disk0,if=none,format=raw,cache=none,detect-zeroes=on,copy-on-read=off,file="${image_file}" -device virtio-scsi-pci --device scsi-hd,drive=disk0,bootindex=0 \ ${net} \ ${vga} \ ${display} \ ${inputs} \ ${graphic} \ ${sound} \ ${monitor} \ ${serial} \ -parallel none Cheers Ryan > I have a working configuration with an RX480, Windows 10 guest and Linux > x64 host, but with a Sandy Bridge i5. Can you give more information? Host > kernel version, chipset, iommu groups, qemu/libvirt configuration... Have > you ever managed to get it working with a different graphics card or guest > OS? > > > Javi > > 2017-02-03 5:22 GMT+01:00 <ryanly...@sigaint.org>: > >> Does the RX480 work with windows 10 guest on linux x64 host haswell >> vt-d? >> I have working config for linux guest but windows 10 gives error -31 >> "Could not install drivers" and video driver using low res vga driver >> (from windows) all booting UEFI. >> >> Have tried 3 different windows version drivers 16.9 16.12 and 17.1 and >> still have same problem. Anyone have success with this? >> >> Lync >> >> _______________________________________________ >> vfio-users mailing list >> vfio-users@redhat.com >> https://www.redhat.com/mailman/listinfo/vfio-users >> > _______________________________________________ vfio-users mailing list vfio-users@redhat.com https://www.redhat.com/mailman/listinfo/vfio-users