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NVME and GPU passthrough to VM assistance

pidg30n
in VM Engine (KVM)

Featured Replies

Hello,

I had a linux OS installed before installing unraid. I am trying to passthrough the NVME and GPU to allow it to function like it did before I installed unraid on the system.

I've enabled "Both" on the VM manager for PCIE passthru and checked the checkboxes for the NVME passthru underneath the other devices below USB. I've also selected the GPU and GPU sound card to be assigned.
I've tried with and without a vbios file. I tried the community script to dump vbios but it dumps a tiny file that is too small....
The NVME is attempted to be passed through as the following device :
Phison Electronics E16 PCIe4 NVMe Controller | Non-Volatile memory controller (3d:00.0)

When I go to view logs the screen looks funky and I can't read the text, so I have to select all, and copy then paste to a notepad. It looks like this...
image.png

Here is the recent error I pulled by copying pasting from the obfuscated logs page.
-accel kvm \

-cpu host,migratable=on,host-cache-info=on,l3-cache=off \

-m size=16777216k \

-object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":17179869184}' \

-overcommit mem-lock=off \

-smp 8,sockets=1,dies=1,clusters=1,cores=4,threads=2 \

-uuid ca707230-6f2b-014f-e083-651f8ffc44a3 \

-display none \

-no-user-config \

-nodefaults \

-chardev socket,id=charmonitor,fd=41,server=on,wait=off \

-mon chardev=charmonitor,id=monitor,mode=control \

-rtc base=utc,driftfix=slew \

-global kvm-pit.lost_tick_policy=delay \

-no-shutdown \

-boot strict=on \

-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \

-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \

-device '{"driver":"pcie-root-port","port":10,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1.0x2"}' \

-device '{"driver":"pcie-root-port","port":11,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x1.0x3"}' \

-device '{"driver":"pcie-root-port","port":12,"chassis":5,"id":"pci.5","bus":"pcie.0","addr":"0x1.0x4"}' \

-device '{"driver":"pcie-root-port","port":13,"chassis":6,"id":"pci.6","bus":"pcie.0","addr":"0x1.0x5"}' \

-device '{"driver":"pcie-root-port","port":14,"chassis":7,"id":"pci.7","bus":"pcie.0","addr":"0x1.0x6"}' \

-device '{"driver":"qemu-xhci","p2":15,"p3":15,"id":"usb","bus":"pcie.0","addr":"0x7"}' \

-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.2","addr":"0x0"}' \

-netdev '{"type":"tap","fd":"42","id":"hostnet0"}' \

-device '{"driver":"virtio-net","netdev":"hostnet0","id":"net0","mac":"52:54:00:d7:dc:25","bus":"pci.1","addr":"0x0"}' \

-chardev pty,id=charserial0 \

-device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0","index":0}' \

-chardev socket,id=charchannel0,fd=40,server=on,wait=off \

-device '{"driver":"virtserialport","bus":"virtio-serial0.0","nr":1,"chardev":"charchannel0","id":"channel0","name":"org.qemu.guest_agent.0"}' \

-audiodev '{"id":"audio1","driver":"none"}' \

-global ICH9-LPC.noreboot=off \

-watchdog-action reset \

-device '{"driver":"vfio-pci","host":"0000:01:00.0","id":"hostdev0","bus":"pci.7","multifunction":true,"addr":"0x0","romfile":"/mnt/user/isos/vbios/EVGA.RTX3090Ti.24576.220307_4.rom"}' \

-device '{"driver":"vfio-pci","host":"0000:01:00.1","id":"hostdev1","bus":"pci.7","addr":"0x0.0x1"}' \

-device '{"driver":"vfio-pci","host":"0000:3d:00.0","id":"hostdev2","bus":"pci.3","addr":"0x0"}' \

-device '{"driver":"usb-host","hostdevice":"/dev/bus/usb/001/006","id":"hostdev3","bus":"usb.0","port":"1"}' \

-device '{"driver":"usb-host","hostdevice":"/dev/bus/usb/001/004","id":"hostdev4","bus":"usb.0","port":"2"}' \

-fw_cfg opt/ovmf/X-PciMmio64Mb,string=65536 \

-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \

-msg timestamp=on

2026-04-12 16:56:07.658+0000: Domain id=8 is tainted: high-privileges

2026-04-12 16:56:07.658+0000: Domain id=8 is tainted: custom-argv

char device redirected to /dev/pts/0 (label charserial0)

2026-04-12T16:56:10.500035Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument

2026-04-12T16:56:10.500075Z qemu-system-x86_64: vfio_container_dma_map(0x560570a206d0, 0x383000000000, 0x10000000, 0x154a70000000) = -2 (No such file or directory)

2026-04-12T16:56:10.500154Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument

2026-04-12T16:56:10.500157Z qemu-system-x86_64: vfio_container_dma_map(0x560570a206d0, 0x383010000000, 0x2000000, 0x154a86000000) = -22 (Invalid argument)

2026-04-12T16:56:10.514203Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument

2026-04-12T16:56:10.514214Z qemu-system-x86_64: vfio_container_dma_map(0x560570a206d0, 0x383000000000, 0x10000000, 0x154a70000000) = -22 (Invalid argument)

2026-04-12T16:56:10.514487Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument

2026-04-12T16:56:10.514492Z qemu-system-x86_64: vfio_container_dma_map(0x560570a206d0, 0x383010000000, 0x2000000, 0x154a86000000) = -22 (Invalid argument)

2026-04-12T16:56:10.543535Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument

2026-04-12T16:56:10.543547Z qemu-system-x86_64: vfio_container_dma_map(0x560570a206d0, 0x383000000000, 0x10000000, 0x154a70000000) = -22 (Invalid argument)

2026-04-12T16:56:10.543651Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument

2026-04-12T16:56:10.543654Z qemu-system-x86_64: vfio_container_dma_map(0x560570a206d0, 0x383010000000, 0x2000000, 0x154a86000000) = -22 (Invalid argument)




Here is my XML so far...

<?xml version='1.0' encoding='UTF-8'?>

<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>

<name>PopOS</name>

<uuid>ca707230-6f2b-014f-e083-651f8ffc44a3</uuid>

<metadata>

<vmtemplate xmlns="unraid" name="Linux" iconold="linux.png" icon="linux.png" os="linux" webui="" storage="default"/>

</metadata>

<memory unit='KiB'>16777216</memory>

<currentMemory unit='KiB'>4194304</currentMemory>

<memoryBacking>

<nosharepages/>

</memoryBacking>

<vcpu placement='static'>8</vcpu>

<cputune>

<vcpupin vcpu='0' cpuset='0'/>

<vcpupin vcpu='1' cpuset='1'/>

<vcpupin vcpu='2' cpuset='2'/>

<vcpupin vcpu='3' cpuset='3'/>

<vcpupin vcpu='4' cpuset='4'/>

<vcpupin vcpu='5' cpuset='5'/>

<vcpupin vcpu='6' cpuset='6'/>

<vcpupin vcpu='7' cpuset='7'/>

</cputune>

<os>

<type arch='x86_64' machine='pc-q35-9.2'>hvm</type>

<loader readonly='yes' type='pflash' format='raw'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>

<nvram format='raw'>/etc/libvirt/qemu/nvram/ca707230-6f2b-014f-e083-651f8ffc44a3_VARS-pure-efi.fd</nvram>

<boot dev='hd'/>

</os>

<features>

<acpi/>

<apic/>

</features>

<cpu mode='host-passthrough' check='none' migratable='on'>

<topology sockets='1' dies='1' clusters='1' cores='4' threads='2'/>

<cache mode='passthrough'/>

</cpu>

<clock offset='utc'>

<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>

<controller type='usb' index='0' model='qemu-xhci' ports='15'>

<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>

</controller>

<controller type='pci' index='0' model='pcie-root'/>

<controller type='pci' index='1' model='pcie-root-port'>

<model name='pcie-root-port'/>

<target chassis='1' port='0x8'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0' multifunction='on'/>

</controller>

<controller type='pci' index='2' model='pcie-root-port'>

<model name='pcie-root-port'/>

<target chassis='2' port='0x9'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>

</controller>

<controller type='pci' index='3' model='pcie-root-port'>

<model name='pcie-root-port'/>

<target chassis='3' port='0xa'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>

</controller>

<controller type='pci' index='4' model='pcie-root-port'>

<model name='pcie-root-port'/>

<target chassis='4' port='0xb'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x3'/>

</controller>

<controller type='pci' index='5' model='pcie-root-port'>

<model name='pcie-root-port'/>

<target chassis='5' port='0xc'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x4'/>

</controller>

<controller type='pci' index='6' model='pcie-root-port'>

<model name='pcie-root-port'/>

<target chassis='6' port='0xd'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x5'/>

</controller>

<controller type='virtio-serial' index='0'>

<address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>

</controller>

<controller type='sata' index='0'>

<address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>

</controller>

<interface type='bridge'>

<mac address='52:54:00:d7:dc:25'/>

<source bridge='br0'/>

<model type='virtio-net'/>

<address type='pci' domain='0x0000' bus='0x01' slot='0x00' 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>

<rom file='/mnt/user/isos/vbios/EVGA.RTX3090Ti.24576.220308.rom'/>

<address type='pci' domain='0x0000' bus='0x03' slot='0x00' 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='0x04' slot='0x00' function='0x0'/>

</hostdev>

<hostdev mode='subsystem' type='pci' managed='yes'>

<driver name='vfio'/>

<source>

<address domain='0x0000' bus='0x3d' slot='0x00' function='0x0'/>

</source>

<address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>

</hostdev>

<hostdev mode='subsystem' type='usb' managed='no'>

<source>

<vendor id='0x0b05'/>

<product id='0x190e'/>

</source>

<address type='usb' bus='0' port='1'/>

</hostdev>

<hostdev mode='subsystem' type='usb' managed='no'>

<source>

<vendor id='0x1ea7'/>

<product id='0x0066'/>

</source>

<address type='usb' bus='0' port='2'/>

</hostdev>

<watchdog model='itco' action='reset'/>

<memballoon model='none'/>

</devices>

<qemu:commandline>

<qemu:arg value='-fw_cfg'/>

<qemu:arg value='opt/ovmf/X-PciMmio64Mb,string=65536'/>

</qemu:commandline>

</domain>

Edited by pidg30n
correction

  • Quote
    • 2 weeks later...
    • Community Expert
    On 4/12/2026 at 5:35 PM, pidg30n said:

    Hello,

    I had a linux OS installed before installing unraid. I am trying to passthrough the NVME and GPU to allow it to function like it did before I installed unraid on the system.

    I've enabled "Both" on the VM manager for PCIE passthru and checked the checkboxes for the NVME passthru underneath the other devices below USB. I've also selected the GPU and GPU sound card to be assigned.
    I've tried with and without a vbios file. I tried the community script to dump vbios but it dumps a tiny file that is too small....
    The NVME is attempted to be passed through as the following device :
    Phison Electronics E16 PCIe4 NVMe Controller | Non-Volatile memory controller (3d:00.0)

    When I go to view logs the screen looks funky and I can't read the text, so I have to select all, and copy then paste to a notepad. It looks like this...
    image.png

    Here is the recent error I pulled by copying pasting from the obfuscated logs page.
    -accel kvm \

    -cpu host,migratable=on,host-cache-info=on,l3-cache=off \

    -m size=16777216k \

    -object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":17179869184}' \

    -overcommit mem-lock=off \

    -smp 8,sockets=1,dies=1,clusters=1,cores=4,threads=2 \

    -uuid ca707230-6f2b-014f-e083-651f8ffc44a3 \

    -display none \

    -no-user-config \

    -nodefaults \

    -chardev socket,id=charmonitor,fd=41,server=on,wait=off \

    -mon chardev=charmonitor,id=monitor,mode=control \

    -rtc base=utc,driftfix=slew \

    -global kvm-pit.lost_tick_policy=delay \

    -no-shutdown \

    -boot strict=on \

    -device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \

    -device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \

    -device '{"driver":"pcie-root-port","port":10,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1.0x2"}' \

    -device '{"driver":"pcie-root-port","port":11,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x1.0x3"}' \

    -device '{"driver":"pcie-root-port","port":12,"chassis":5,"id":"pci.5","bus":"pcie.0","addr":"0x1.0x4"}' \

    -device '{"driver":"pcie-root-port","port":13,"chassis":6,"id":"pci.6","bus":"pcie.0","addr":"0x1.0x5"}' \

    -device '{"driver":"pcie-root-port","port":14,"chassis":7,"id":"pci.7","bus":"pcie.0","addr":"0x1.0x6"}' \

    -device '{"driver":"qemu-xhci","p2":15,"p3":15,"id":"usb","bus":"pcie.0","addr":"0x7"}' \

    -device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.2","addr":"0x0"}' \

    -netdev '{"type":"tap","fd":"42","id":"hostnet0"}' \

    -device '{"driver":"virtio-net","netdev":"hostnet0","id":"net0","mac":"52:54:00:d7:dc:25","bus":"pci.1","addr":"0x0"}' \

    -chardev pty,id=charserial0 \

    -device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0","index":0}' \

    -chardev socket,id=charchannel0,fd=40,server=on,wait=off \

    -device '{"driver":"virtserialport","bus":"virtio-serial0.0","nr":1,"chardev":"charchannel0","id":"channel0","name":"org.qemu.guest_agent.0"}' \

    -audiodev '{"id":"audio1","driver":"none"}' \

    -global ICH9-LPC.noreboot=off \

    -watchdog-action reset \

    -device '{"driver":"vfio-pci","host":"0000:01:00.0","id":"hostdev0","bus":"pci.7","multifunction":true,"addr":"0x0","romfile":"/mnt/user/isos/vbios/EVGA.RTX3090Ti.24576.220307_4.rom"}' \

    -device '{"driver":"vfio-pci","host":"0000:01:00.1","id":"hostdev1","bus":"pci.7","addr":"0x0.0x1"}' \

    -device '{"driver":"vfio-pci","host":"0000:3d:00.0","id":"hostdev2","bus":"pci.3","addr":"0x0"}' \

    -device '{"driver":"usb-host","hostdevice":"/dev/bus/usb/001/006","id":"hostdev3","bus":"usb.0","port":"1"}' \

    -device '{"driver":"usb-host","hostdevice":"/dev/bus/usb/001/004","id":"hostdev4","bus":"usb.0","port":"2"}' \

    -fw_cfg opt/ovmf/X-PciMmio64Mb,string=65536 \

    -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \

    -msg timestamp=on

    2026-04-12 16:56:07.658+0000: Domain id=8 is tainted: high-privileges

    2026-04-12 16:56:07.658+0000: Domain id=8 is tainted: custom-argv

    char device redirected to /dev/pts/0 (label charserial0)

    2026-04-12T16:56:10.500035Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument

    2026-04-12T16:56:10.500075Z qemu-system-x86_64: vfio_container_dma_map(0x560570a206d0, 0x383000000000, 0x10000000, 0x154a70000000) = -2 (No such file or directory)

    2026-04-12T16:56:10.500154Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument

    2026-04-12T16:56:10.500157Z qemu-system-x86_64: vfio_container_dma_map(0x560570a206d0, 0x383010000000, 0x2000000, 0x154a86000000) = -22 (Invalid argument)

    2026-04-12T16:56:10.514203Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument

    2026-04-12T16:56:10.514214Z qemu-system-x86_64: vfio_container_dma_map(0x560570a206d0, 0x383000000000, 0x10000000, 0x154a70000000) = -22 (Invalid argument)

    2026-04-12T16:56:10.514487Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument

    2026-04-12T16:56:10.514492Z qemu-system-x86_64: vfio_container_dma_map(0x560570a206d0, 0x383010000000, 0x2000000, 0x154a86000000) = -22 (Invalid argument)

    2026-04-12T16:56:10.543535Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument

    2026-04-12T16:56:10.543547Z qemu-system-x86_64: vfio_container_dma_map(0x560570a206d0, 0x383000000000, 0x10000000, 0x154a70000000) = -22 (Invalid argument)

    2026-04-12T16:56:10.543651Z qemu-system-x86_64: VFIO_MAP_DMA failed: Invalid argument

    2026-04-12T16:56:10.543654Z qemu-system-x86_64: vfio_container_dma_map(0x560570a206d0, 0x383010000000, 0x2000000, 0x154a86000000) = -22 (Invalid argument)




    Here is my XML so far...

    <?xml version='1.0' encoding='UTF-8'?>

    <domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>

    <name>PopOS</name>

    <uuid>ca707230-6f2b-014f-e083-651f8ffc44a3</uuid>

    <metadata>

    <vmtemplate xmlns="unraid" name="Linux" iconold="linux.png" icon="linux.png" os="linux" webui="" storage="default"/>

    </metadata>

    <memory unit='KiB'>16777216</memory>

    <currentMemory unit='KiB'>4194304</currentMemory>

    <memoryBacking>

    <nosharepages/>

    </memoryBacking>

    <vcpu placement='static'>8</vcpu>

    <cputune>

    <vcpupin vcpu='0' cpuset='0'/>

    <vcpupin vcpu='1' cpuset='1'/>

    <vcpupin vcpu='2' cpuset='2'/>

    <vcpupin vcpu='3' cpuset='3'/>

    <vcpupin vcpu='4' cpuset='4'/>

    <vcpupin vcpu='5' cpuset='5'/>

    <vcpupin vcpu='6' cpuset='6'/>

    <vcpupin vcpu='7' cpuset='7'/>

    </cputune>

    <os>

    <type arch='x86_64' machine='pc-q35-9.2'>hvm</type>

    <loader readonly='yes' type='pflash' format='raw'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>

    <nvram format='raw'>/etc/libvirt/qemu/nvram/ca707230-6f2b-014f-e083-651f8ffc44a3_VARS-pure-efi.fd</nvram>

    <boot dev='hd'/>

    </os>

    <features>

    <acpi/>

    <apic/>

    </features>

    <cpu mode='host-passthrough' check='none' migratable='on'>

    <topology sockets='1' dies='1' clusters='1' cores='4' threads='2'/>

    <cache mode='passthrough'/>

    </cpu>

    <clock offset='utc'>

    <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>

    <controller type='usb' index='0' model='qemu-xhci' ports='15'>

    <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>

    </controller>

    <controller type='pci' index='0' model='pcie-root'/>

    <controller type='pci' index='1' model='pcie-root-port'>

    <model name='pcie-root-port'/>

    <target chassis='1' port='0x8'/>

    <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0' multifunction='on'/>

    </controller>

    <controller type='pci' index='2' model='pcie-root-port'>

    <model name='pcie-root-port'/>

    <target chassis='2' port='0x9'/>

    <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>

    </controller>

    <controller type='pci' index='3' model='pcie-root-port'>

    <model name='pcie-root-port'/>

    <target chassis='3' port='0xa'/>

    <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>

    </controller>

    <controller type='pci' index='4' model='pcie-root-port'>

    <model name='pcie-root-port'/>

    <target chassis='4' port='0xb'/>

    <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x3'/>

    </controller>

    <controller type='pci' index='5' model='pcie-root-port'>

    <model name='pcie-root-port'/>

    <target chassis='5' port='0xc'/>

    <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x4'/>

    </controller>

    <controller type='pci' index='6' model='pcie-root-port'>

    <model name='pcie-root-port'/>

    <target chassis='6' port='0xd'/>

    <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x5'/>

    </controller>

    <controller type='virtio-serial' index='0'>

    <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>

    </controller>

    <controller type='sata' index='0'>

    <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>

    </controller>

    <interface type='bridge'>

    <mac address='52:54:00:d7:dc:25'/>

    <source bridge='br0'/>

    <model type='virtio-net'/>

    <address type='pci' domain='0x0000' bus='0x01' slot='0x00' 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>

    <rom file='/mnt/user/isos/vbios/EVGA.RTX3090Ti.24576.220308.rom'/>

    <address type='pci' domain='0x0000' bus='0x03' slot='0x00' 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='0x04' slot='0x00' function='0x0'/>

    </hostdev>

    <hostdev mode='subsystem' type='pci' managed='yes'>

    <driver name='vfio'/>

    <source>

    <address domain='0x0000' bus='0x3d' slot='0x00' function='0x0'/>

    </source>

    <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>

    </hostdev>

    <hostdev mode='subsystem' type='usb' managed='no'>

    <source>

    <vendor id='0x0b05'/>

    <product id='0x190e'/>

    </source>

    <address type='usb' bus='0' port='1'/>

    </hostdev>

    <hostdev mode='subsystem' type='usb' managed='no'>

    <source>

    <vendor id='0x1ea7'/>

    <product id='0x0066'/>

    </source>

    <address type='usb' bus='0' port='2'/>

    </hostdev>

    <watchdog model='itco' action='reset'/>

    <memballoon model='none'/>

    </devices>

    <qemu:commandline>

    <qemu:arg value='-fw_cfg'/>

    <qemu:arg value='opt/ovmf/X-PciMmio64Mb,string=65536'/>

    </qemu:commandline>

    </domain>

    Can you post diagnostics? Have you tried without these options?

    <qemu:commandline>

    <qemu:arg value='-fw_cfg'/>

    <qemu:arg value='opt/ovmf/X-PciMmio64Mb,string=65536'/>

    </qemu:commandline>

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