GPU Passthrough Help

September 29, 20232 yr

Hi All, I am trying to add a GTX 1650 Low Profile to my VM and access it via RDP.

I have dumped my vbios, added mutlifunction='on' to the xml etc but when I start it up I get the following in the log

-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
-msg timestamp=on
char device redirected to /dev/pts/0 (label charserial0)
2023-09-29T10:08:53.279340Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2023-09-29T10:08:53.279393Z qemu-system-x86_64: vfio_dma_map(0x1460a91ea200, 0x380000000000, 0x10000000, 0x146097400000) = -2 (No such file or directory)
2023-09-29T10:08:53.279588Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2023-09-29T10:08:53.279596Z qemu-system-x86_64: vfio_dma_map(0x1460a91ea200, 0x380010000000, 0x2000000, 0x146095400000) = -22 (Invalid argument)
2023-09-29T10:08:53.285312Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2023-09-29T10:08:53.285324Z qemu-system-x86_64: vfio_dma_map(0x1460a91ea200, 0x380000000000, 0x10000000, 0x146097400000) = -22 (Invalid argument)
2023-09-29T10:08:53.285490Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2023-09-29T10:08:53.285497Z qemu-system-x86_64: vfio_dma_map(0x1460a91ea200, 0x380010000000, 0x2000000, 0x146095400000) = -22 (Invalid argument)
2023-09-29T10:08:53.293988Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2023-09-29T10:08:53.294001Z qemu-system-x86_64: vfio_dma_map(0x1460a91ea200, 0x380000000000, 0x10000000, 0x146097400000) = -22 (Invalid argument)
2023-09-29T10:08:53.294173Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2023-09-29T10:08:53.294180Z qemu-system-x86_64: vfio_dma_map(0x1460a91ea200, 0x380010000000, 0x2000000, 0x146095400000) = -22 (Invalid argument)
2023-09-29T10:08:53.390388Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2023-09-29T10:08:53.390408Z qemu-system-x86_64: vfio_dma_map(0x1460a91ea200, 0x380000000000, 0x10000000, 0x146097400000) = -22 (Invalid argument)
2023-09-29T10:08:53.390598Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2023-09-29T10:08:53.390607Z qemu-system-x86_64: vfio_dma_map(0x1460a91ea200, 0x380010000000, 0x2000000, 0x146095400000) = -22 (Invalid argument)
2023-09-29T10:08:56.514840Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2023-09-29T10:08:56.514877Z qemu-system-x86_64: vfio_dma_map(0x1460a91ea200, 0x380000000000, 0x10000000, 0x146097400000) = -22 (Invalid argument)
2023-09-29T10:08:56.515128Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2023-09-29T10:08:56.515135Z qemu-system-x86_64: vfio_dma_map(0x1460a91ea200, 0x380010000000, 0x2000000, 0x146095400000) = -22 (Invalid argument)
2023-09-29T10:08:56.529784Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2023-09-29T10:08:56.529809Z qemu-system-x86_64: vfio_dma_map(0x1460a91ea200, 0x380000000000, 0x10000000, 0x146097400000) = -22 (Invalid argument)
2023-09-29T10:08:56.530012Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2023-09-29T10:08:56.530020Z qemu-system-x86_64: vfio_dma_map(0x1460a91ea200, 0x380010000000, 0x2000000, 0x146095400000) = -22 (Invalid argument)

My Server Specs are

Model:	
M/B:	Micro-Star International Co., Ltd. PRO B760-P WIFI DDR4 (MS-7D98) Version 1.0 s/n 07D9810_MB1E064770
BIOS:	American Megatrends International, LLC. Version 1.50 Dated 05/23/2023
CPU:	13th Gen Intel® Core™ i5-13500 @ 2475 MHz
HVM:	Enabled
IOMMU:	Enabled
Cache:	L1 Cache: 288 KiB, L1 Cache: 192 KiB, L2 Cache: 7680 KiB, L3 Cache: 24 MiB, L1 Cache: 256 KiB, L1 Cache: 512 KiB, L2 Cache: 4 MiB, L3 Cache: 24 MiB
Memory:	64 GiB DDR4 (max. installable capacity 128 GiB)
Network:	eth0: 10000 Mbps, full duplex, mtu 1500
Kernel:	Linux 6.1.49-Unraid x86_64
OpenSSL:	1.1.1v
Uptime:

My VM XML

<?xml version='1.0' encoding='UTF-8'?>
<domain type='kvm'>
  <name>Windows 11</name>
  <uuid>996dd70b-875d-f9ba-0d9c-b1cd88f2825a</uuid>
  <metadata>
    <vmtemplate xmlns="unraid" name="Windows 11" icon="Windows_11.png" os="windowstpm"/>
  </metadata>
  <memory unit='KiB'>16777216</memory>
  <currentMemory unit='KiB'>16777216</currentMemory>
  <memoryBacking>
    <nosharepages/>
  </memoryBacking>
  <vcpu placement='static'>4</vcpu>
  <cputune>
    <vcpupin vcpu='0' cpuset='16'/>
    <vcpupin vcpu='1' cpuset='17'/>
    <vcpupin vcpu='2' cpuset='18'/>
    <vcpupin vcpu='3' cpuset='19'/>
  </cputune>
  <os>
    <type arch='x86_64' machine='pc-i440fx-7.1'>hvm</type>
    <loader readonly='yes' type='pflash'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi-tpm.fd</loader>
    <nvram>/etc/libvirt/qemu/nvram/996dd70b-875d-f9ba-0d9c-b1cd88f2825a_VARS-pure-efi-tpm.fd</nvram>
  </os>
  <features>
    <acpi/>
    <apic/>
    <hyperv mode='custom'>
      <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' migratable='on'>
    <topology sockets='1' dies='1' cores='2' threads='2'/>
    <cache mode='passthrough'/>
  </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/Windows 10/vdisk1.img'/>
      <target dev='hdc' bus='virtio'/>
      <serial>vdisk1</serial>
      <boot order='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <source file='/mnt/user/iso/virtio-win-0.1.229-1.iso'/>
      <target dev='hdb' bus='ide'/>
      <readonly/>
      <address type='drive' controller='0' bus='0' target='0' unit='1'/>
    </disk>
    <controller type='pci' index='0' model='pci-root'/>
    <controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='virtio-serial' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </controller>
    <controller type='usb' index='0' model='ich9-ehci1'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x7'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci1'>
      <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'>
      <master startport='2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x1'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci3'>
      <master startport='4'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x2'/>
    </controller>
    <interface type='bridge'>
      <mac address='52:54:00:f9:79:13'/>
      <source bridge='br0'/>
      <model type='virtio-net'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </interface>
    <serial type='pty'>
      <target type='isa-serial' port='0'>
        <model name='isa-serial'/>
      </target>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
    <channel type='unix'>
      <target type='virtio' name='org.qemu.guest_agent.0'/>
      <address type='virtio-serial' controller='0' bus='0' port='1'/>
    </channel>
    <input type='tablet' bus='usb'>
      <address type='usb' bus='0' port='1'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <tpm model='tpm-tis'>
      <backend type='emulator' version='2.0' persistent_state='yes'/>
    </tpm>
    <audio id='1' type='none'/>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
      </source>
      <rom file='/mnt/user/isos/vbios/GTX1650.rom'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0' multifunction='on'/>
    </hostdev>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x01' slot='0x00' function='0x1'/>
      </source>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x1'/>
    </hostdev>
    <memballoon model='none'/>
  </devices>
</domain>

I just cant get it to work, I don't have a monitor available at server and use my laptop to RDP to the VM.

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December 14, 20232 yr

I have the same problem

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February 10, 20242 yr

@bally12345 @Leandres Maybe this can help you, it solved my issue.

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GPU Passthrough Help

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