Homeassistant VM GPU pass through

Hi all. I’ve been trying for a few days now to get my gtx1660 super passed through to my HA vm for cctv but I keep getting the following error. 
Nvidia driver is NOT installed.
 

internal error: QEMU unexpectedly closed the monitor (vm='Home-Assistant'): 2024-07-01T09:37:53.873912Z qemu-system-x86_64: -device {"driver":"pci-bridge","chassis_nr":29,"id":"pci.29","bus":"pci.1","addr":"0x1"}: Bus 'pci.1' not found

VM XML
 

<?xml version='1.0' encoding='UTF-8'?>
<domain type='kvm'>
  <name>Home-Assistant</name>
  <uuid>af68d18e-147d-ac7e-e87f-434469475b66</uuid>
  <metadata>
    <vmtemplate xmlns="unraid" name="Linux" icon="default.png" os="linux" webui="" storage="default"/>
  </metadata>
  <memory unit='KiB'>4194304</memory>
  <currentMemory unit='KiB'>4194304</currentMemory>
  <memoryBacking>
    <nosharepages/>
  </memoryBacking>
  <vcpu placement='static'>8</vcpu>
  <cputune>
    <vcpupin vcpu='0' cpuset='4'/>
    <vcpupin vcpu='1' cpuset='5'/>
    <vcpupin vcpu='2' cpuset='6'/>
    <vcpupin vcpu='3' cpuset='7'/>
    <vcpupin vcpu='4' cpuset='8'/>
    <vcpupin vcpu='5' cpuset='9'/>
    <vcpupin vcpu='6' cpuset='10'/>
    <vcpupin vcpu='7' cpuset='11'/>
  </cputune>
  <os>
    <type arch='x86_64' machine='pc-i440fx-8.2'>hvm</type>
    <loader readonly='yes' type='pflash'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>
    <nvram>/etc/libvirt/qemu/nvram/af68d18e-147d-ac7e-e87f-434469475b66_VARS-pure-efi.fd</nvram>
  </os>
  <features>
    <acpi/>
    <apic/>
  </features>
  <cpu mode='host-passthrough' check='none' migratable='on'>
    <topology sockets='1' dies='1' cores='4' threads='2'/>
    <cache mode='passthrough'/>
  </cpu>
  <clock offset='localtime'>
    <timer name='hpet' present='no'/>
    <timer name='hypervclock' present='no'/>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='rtc' tickpolicy='catchup'/>
  </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='qcow2' cache='writeback'/>
      <source file='/mnt/cache/domains/Home-Assistant/haos_ova-12.4.S20240701102420qcow2'/>
      <target dev='hdc' bus='virtio'/>
      <serial>vdisk1</serial>
      <boot order='1'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x07' function='0x0'/>
    </disk>
    <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>
    <controller type='pci' index='0' model='pci-root'/>
    <controller type='pci' index='1' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </controller>
    <controller type='pci' index='2' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </controller>
    <controller type='pci' index='3' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='3'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </controller>
    <controller type='pci' index='4' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='4'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </controller>
    <controller type='pci' index='5' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='5'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
    </controller>
    <controller type='pci' index='6' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='6'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
    </controller>
    <controller type='pci' index='7' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='7'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
    </controller>
    <controller type='pci' index='8' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='8'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>
    </controller>
    <controller type='pci' index='9' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='9'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0c' function='0x0'/>
    </controller>
    <controller type='pci' index='10' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='10'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0d' function='0x0'/>
    </controller>
    <controller type='pci' index='11' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='11'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0e' function='0x0'/>
    </controller>
    <controller type='pci' index='12' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='12'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0f' function='0x0'/>
    </controller>
    <controller type='pci' index='13' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='13'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x10' function='0x0'/>
    </controller>
    <controller type='pci' index='14' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='14'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x11' function='0x0'/>
    </controller>
    <controller type='pci' index='15' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='15'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x12' function='0x0'/>
    </controller>
    <controller type='pci' index='16' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='16'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x13' function='0x0'/>
    </controller>
    <controller type='pci' index='17' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='17'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x14' function='0x0'/>
    </controller>
    <controller type='pci' index='18' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='18'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x15' function='0x0'/>
    </controller>
    <controller type='pci' index='19' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='19'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x16' function='0x0'/>
    </controller>
    <controller type='pci' index='20' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='20'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x17' function='0x0'/>
    </controller>
    <controller type='pci' index='21' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='21'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x18' function='0x0'/>
    </controller>
    <controller type='pci' index='22' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='22'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x19' function='0x0'/>
    </controller>
    <controller type='pci' index='23' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='23'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1a' function='0x0'/>
    </controller>
    <controller type='pci' index='24' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='24'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1b' function='0x0'/>
    </controller>
    <controller type='pci' index='25' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='25'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1c' function='0x0'/>
    </controller>
    <controller type='pci' index='26' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='26'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x0'/>
    </controller>
    <controller type='pci' index='27' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='27'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
    </controller>
    <controller type='pci' index='28' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='28'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x0'/>
    </controller>
    <controller type='pci' index='29' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='29'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/>
    </controller>
    <controller type='pci' index='30' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='30'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x02' function='0x0'/>
    </controller>
    <controller type='pci' index='31' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='31'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x03' function='0x0'/>
    </controller>
    <controller type='pci' index='32' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='32'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x04' function='0x0'/>
    </controller>
    <controller type='pci' index='33' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='33'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x05' function='0x0'/>
    </controller>
    <controller type='virtio-serial' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </controller>
    <interface type='bridge'>
      <mac address='52:54:00:f0:58:23'/>
      <source bridge='br0'/>
      <model type='virtio-net'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x06' 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='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <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>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x08' function='0x0'/>
    </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='0x01' slot='0x09' function='0x0'/>
    </hostdev>
    <memballoon model='none'/>
  </devices>
</domain>

Error in VM log.
 

2024-07-01T09:43:13.986276Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument
2024-07-01T09:43:13.986278Z qemu-system-x86_64: vfio_dma_map(0x556573d67180, 0x382810000000, 0x2000000, 0x15007a000000) = -22 (Invalid argument)

Edited July 1, 20242 yr by SavageAUS