I've watched spaceinvader one's video "Advanced GPU passthrough techniques on Unraid - YouTube", and read the post https://forums.serverbuilds.net/t/guide-remote-gaming-on-unraid/4248/10 and set up my vm. everything went smoothly. i logged in via rdp, seeing the rx550(showing up with the name Microsoft basic graphic adapter or so, without driver) in win10's managing panel. No error code 43. I can see the graphic output of win10 from a external monitor.

So I went forward, installed the driver suite from AMD. Then I could see rx550 showing up as its original name. No error code again. Then i restarted win10 to let the driver take effect.

 

However the vm hanged then. My rdp connection was closed so I checked the monitor, finding that it was a black screen, with the power indicator led on. There's always one cpu load 100%. I suspect it's spinning.

 

tried solutions:

1. force stop the vm and restart it. remove gc from vm and add vnc. win10 showed it's broken and needed repairing.

2. set up a new vm with q35 machine. can't boot into win10 even without drivers installed.

3. a fresh win10 vm setup. same issue.

 

what i think needs mentioning:

1. added vfio-pci.ids in syslinux

2. used a vbios download from techpowerup(without it I don't have graphic output)

3. acs override enabled

4. legacy boot

 

additional info:

1. I have a integrated graphic card onboard.  but i didn't find an option in bios to set it as 'primary gpu' or so on.

2. unraid version: 6.8.2

 

iommu group:

with PCIe ACS Override setting enabled:

IOMMU group 18:	[1002:67ff] 06:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Baffin [Radeon RX 550 640SP / RX 560/560X] (rev ff)
IOMMU group 19:	[1002:aae0] 06:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Baffin HDMI/DP Audio [Radeon RX 550 640SP / RX 560/560X]

when acs not enabled, they are in the same group.

sysinfo:

Model: Custom
M/B: ZTSYSTEM A9DRPF-10S Version TBD - s/n: TBD
BIOS: American Megatrends Inc. Version C2.35. Dated: 05/25/2015
CPU: Intel® Xeon® CPU E5-2620 @ 2.00GHz
HVM: Enabled
IOMMU: Enabled
Cache: 384 KiB, 1536 KiB, 15360 KiB, 384 KiB, 1536 KiB, 15360 KiB
Memory: 32 GiB DDR3 Multi-bit ECC (max. installable capacity 512 GiB)
Network: bond0: fault-tolerance (active-backup), mtu 1500
 eth0: 100 Mbps, full duplex, mtu 1500
Kernel: Linux 4.19.98-Unraid x86_64

vm xml:

<?xml version='1.0' encoding='UTF-8'?>
<domain type='kvm' id='7'>
  <name>unraidwin10-2</name>
  <uuid>03afe9d8-3290-6508-1e95-d207c898a468</uuid>
  <metadata>
    <vmtemplate xmlns="unraid" name="Windows 10" icon="windows.png" os="windows10"/>
  </metadata>
  <memory unit='KiB'>8388608</memory>
  <currentMemory unit='KiB'>8388608</currentMemory>
  <memoryBacking>
    <nosharepages/>
  </memoryBacking>
  <vcpu placement='static'>14</vcpu>
  <cputune>
    <vcpupin vcpu='0' cpuset='1'/>
    <vcpupin vcpu='1' cpuset='13'/>
    <vcpupin vcpu='2' cpuset='3'/>
    <vcpupin vcpu='3' cpuset='15'/>
    <vcpupin vcpu='4' cpuset='5'/>
    <vcpupin vcpu='5' cpuset='17'/>
    <vcpupin vcpu='6' cpuset='6'/>
    <vcpupin vcpu='7' cpuset='18'/>
    <vcpupin vcpu='8' cpuset='7'/>
    <vcpupin vcpu='9' cpuset='19'/>
    <vcpupin vcpu='10' cpuset='8'/>
    <vcpupin vcpu='11' cpuset='20'/>
    <vcpupin vcpu='12' cpuset='10'/>
    <vcpupin vcpu='13' cpuset='22'/>
  </cputune>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='x86_64' machine='pc-i440fx-4.2'>hvm</type>
    <loader readonly='yes' type='pflash'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>
    <nvram>/etc/libvirt/qemu/nvram/03afe9d8-3290-6508-1e95-d207c898a468_VARS-pure-efi.fd</nvram>
  </os>
  <features>
    <acpi/>
    <apic/>
    <hyperv>
      <relaxed state='on'/>
      <vapic state='on'/>
      <spinlocks state='on' retries='8191'/>
      <vendor_id state='on' value='none'/>
    </hyperv>
  </features>
  <cpu mode='host-passthrough' check='none'>
    <topology sockets='1' cores='7' threads='2'/>
  </cpu>
  <clock offset='localtime'>
    <timer name='hypervclock' present='yes'/>
    <timer name='hpet' present='no'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/local/sbin/qemu</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw' cache='writeback'/>
      <source file='/mnt/user/domains/unraidwin10-2/vdisk1.img' index='4'/>
      <backingStore/>
      <target dev='hdc' bus='virtio'/>
      <boot order='1'/>
      <alias name='virtio-disk2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw' cache='writeback'/>
      <source file='/mnt/user/domains/unraidwin10-2/vdisk2.img' index='3'/>
      <backingStore/>
      <target dev='hdd' bus='virtio'/>
      <alias name='virtio-disk3'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <source file='/mnt/user/isos/cn_windows_10_business_editions_version_1909_updated_dec_2019_x64_dvd_262ac8af.iso' index='2'/>
      <backingStore/>
      <target dev='hda' bus='ide'/>
      <readonly/>
      <boot order='2'/>
      <alias name='ide0-0-0'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <source file='/mnt/user/isos/virtio-win-0.1.173-2.iso' index='1'/>
      <backingStore/>
      <target dev='hdb' bus='ide'/>
      <readonly/>
      <alias name='ide0-0-1'/>
      <address type='drive' controller='0' bus='0' target='0' unit='1'/>
    </disk>
    <controller type='usb' index='0' model='ich9-ehci1'>
      <alias name='usb'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x7'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci1'>
      <alias name='usb'/>
      <master startport='0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0' multifunction='on'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci2'>
      <alias name='usb'/>
      <master startport='2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x1'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci3'>
      <alias name='usb'/>
      <master startport='4'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'>
      <alias name='pci.0'/>
    </controller>
    <controller type='ide' index='0'>
      <alias name='ide'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='virtio-serial' index='0'>
      <alias name='virtio-serial0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </controller>
    <interface type='bridge'>
      <mac address='52:54:00:99:2f:ae'/>
      <source bridge='br0'/>
      <target dev='vnet0'/>
      <model type='virtio'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </interface>
    <serial type='pty'>
      <source path='/dev/pts/0'/>
      <target type='isa-serial' port='0'>
        <model name='isa-serial'/>
      </target>
      <alias name='serial0'/>
    </serial>
    <console type='pty' tty='/dev/pts/0'>
      <source path='/dev/pts/0'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
    </console>
    <channel type='unix'>
      <source mode='bind' path='/var/lib/libvirt/qemu/channel/target/domain-7-unraidwin10-2/org.qemu.guest_agent.0'/>
      <target type='virtio' name='org.qemu.guest_agent.0' state='disconnected'/>
      <alias name='channel0'/>
      <address type='virtio-serial' controller='0' bus='0' port='1'/>
    </channel>
    <input type='tablet' bus='usb'>
      <alias name='input0'/>
      <address type='usb' bus='0' port='1'/>
    </input>
    <input type='mouse' bus='ps2'>
      <alias name='input1'/>
    </input>
    <input type='keyboard' bus='ps2'>
      <alias name='input2'/>
    </input>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
      </source>
      <alias name='hostdev0'/>
      <rom file='/mnt/user/isos/Yeston.RX550.2048.181218.rom'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0' multifunction='on'/>
    </hostdev>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x06' slot='0x00' function='0x1'/>
      </source>
      <alias name='hostdev1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x1'/>
    </hostdev>
    <memballoon model='none'/>
  </devices>
  <seclabel type='dynamic' model='dac' relabel='yes'>
    <label>+0:+100</label>
    <imagelabel>+0:+100</imagelabel>
  </seclabel>
</domain>

 

vm log:

-display none \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,fd=33,server,nowait \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=localtime \
-no-hpet \
-no-shutdown \
-boot strict=on \
-device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x7.0x7 \
-device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x7 \
-device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x7.0x1 \
-device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x7.0x2 \
-device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x3 \
-blockdev '{"driver":"file","filename":"/mnt/user/domains/unraidwin10-2/vdisk1.img","node-name":"libvirt-4-storage","cache":{"direct":false,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-4-format","read-only":false,"cache":{"direct":false,"no-flush":false},"driver":"raw","file":"libvirt-4-storage"}' \
-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=libvirt-4-format,id=virtio-disk2,bootindex=1,write-cache=on \
-blockdev '{"driver":"file","filename":"/mnt/user/domains/unraidwin10-2/vdisk2.img","node-name":"libvirt-3-storage","cache":{"direct":false,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-3-format","read-only":false,"cache":{"direct":false,"no-flush":false},"driver":"raw","file":"libvirt-3-storage"}' \
-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=libvirt-3-format,id=virtio-disk3,write-cache=on \
-blockdev '{"driver":"file","filename":"/mnt/user/isos/cn_windows_10_business_editions_version_1909_updated_dec_2019_x64_dvd_262ac8af.iso","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"raw","file":"libvirt-2-storage"}' \
-device ide-cd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0,bootindex=2 \
-blockdev '{"driver":"file","filename":"/mnt/user/isos/virtio-win-0.1.173-2.iso","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
-device ide-cd,bus=ide.0,unit=1,drive=libvirt-1-format,id=ide0-0-1 \
-netdev tap,fd=35,id=hostnet0,vhost=on,vhostfd=36 \
-device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:99:2f:ae,bus=pci.0,addr=0x2 \
-chardev pty,id=charserial0 \
-device isa-serial,chardev=charserial0,id=serial0 \
-chardev socket,id=charchannel0,fd=37,server,nowait \
-device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 \
-device usb-tablet,id=input0,bus=usb.0,port=1 \
-device vfio-pci,host=0000:06:00.0,id=hostdev0,bus=pci.0,multifunction=on,addr=0x6,romfile=/mnt/user/isos/Yeston.RX550.2048.181218.rom \
-device vfio-pci,host=0000:06:00.1,id=hostdev1,bus=pci.0,addr=0x6.0x1 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
-msg timestamp=on
2021-04-03 10:32:34.591+0000: Domain id=7 is tainted: high-privileges
2021-04-03 10:32:34.591+0000: Domain id=7 is tainted: host-cpu
char device redirected to /dev/pts/0 (label charserial0)

 

no messages marked as error in the unraid syslog.

Edited April 4, 20215 yr by r2xizz

Solved by updating to the latest unraid and use q35-5.0

I am trying to passthrough an RX560 GPU.  I don't want to risk corrupting my existing vm, hence, am installing a vm from scratch to test out configurations.  Would you recommend installation of Windows using VNC first?  Or should I start with graphics card passed through right away?  

 

Should I select q35-5.1 instead of i440?  i440 doesn't even start.