jimig1

this should be it <domain type='kvm' id='20' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> <name>Gaming Desktop</name> <uuid>a7d1ec80-0274-92f0-755c-937a03c59cdf</uuid> <metadata> <vmtemplate name="Custom" icon="windows.png" os="windows"/> </metadata> <memory unit='KiB'>10485760</memory> <currentMemory unit='KiB'>10485760</currentMemory> <memoryBacking> <nosharepages/> <locked/> </memoryBacking> <vcpu placement='static'>6</vcpu> <cputune> <vcpupin vcpu='0' cpuset='2'/> <vcpupin vcpu='1' cpuset='3'/> <vcpupin vcpu='2' cpuset='4'/> <vcpupin vcpu='3' cpuset='5'/> <vcpupin vcpu='4' cpuset='6'/> <vcpupin vcpu='5' cpuset='7'/> </cputune> <resource> <partition>/machine</partition> </resource> <os> <type arch='x86_64' machine='pc-i440fx-2.3'>hvm</type> </os> <features> <acpi/> <apic/> </features> <cpu mode='host-passthrough'> <topology sockets='1' cores='6' threads='1'/> </cpu> <clock offset='localtime'> <timer name='rtc' tickpolicy='catchup'/> <timer name='pit' tickpolicy='delay'/> <timer name='hpet' present='no'/> </clock> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/qemu-system-x86_64</emulator> <disk type='file' device='disk'> <driver name='qemu' type='raw' cache='writeback'/> <source file='/mnt/user/domains/gamingnas/vdisk1.img'/> <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='cdrom'> <driver name='qemu' type='raw'/> <source file='/mnt/user/isos/Windows.iso'/> <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-0.1.112.iso'/> <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='nec-xhci'> </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='52:54:00:9a:30:4e'/> <source bridge='virbr0'/> <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 port='0'/> <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/Gaming Desktop.org.qemu.guest_agent.0'/> <target type='virtio' name='org.qemu.guest_agent.0' state='connected'/> <alias name='channel0'/> <address type='virtio-serial' controller='0' bus='0' port='1'/> </channel> <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x046d'/> <product id='0x0826'/> <address bus='1' device='5'/> </source> <alias name='hostdev0'/> </hostdev> <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x046d'/> <product id='0xc32b'/> <address bus='1' device='4'/> </source> <alias name='hostdev1'/> </hostdev> <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x046d'/> <product id='0x0a17'/> <address bus='1' device='3'/> </source> <alias name='hostdev2'/> </hostdev> <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x046d'/> <product id='0xc537'/> <address bus='1' device='2'/> </source> <alias name='hostdev3'/> </hostdev> <memballoon model='virtio'> <alias name='balloon0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </memballoon> </devices> <qemu:commandline> <qemu:arg value='-device'/> <qemu:arg value='ioh3420,bus=pci.0,addr=1c.0,multifunction=on,port=2,chassis=1,id=root.1'/> <qemu:arg value='-device'/> <qemu:arg value='vfio-pci,host=01:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on'/> <qemu:arg value='-device'/> <qemu:arg value='vfio-pci,host=01:00.1,bus=root.1,addr=00.1'/> <qemu:arg value='-device'/> <qemu:arg value='vfio-pci,host=70:00.0,bus=root.1,addr=01.0'/> </qemu:commandline> </domain>

I tried using these methods for passing through the entire controller and just the webcam. https://lime-technology.com/forum/index.php?topic=36768.0 https://lime-technology.com/forum/index.php?topic=38259.0 https://lime-technology.com/forum/index.php?topic=41922.0 They didn't work for me. Is that how you did it? I did the ***GUIDE*** Passthrough Entire PCI USB Controller and New USB Pass Through Method with USB 3.0 at the same time I took a little bit of work but it wasn't too hard. If you post your xml I can see if i can give you a hand

Have you tried passing the whole card instead of just the ports? I had a similar problem and passing the whole card fixed the problems.