On 3/29/19 2:16 AM, 小川寿人 wrote: > Hi, > > If you using Radeon RX with i440fx type vm, GPU attached to > pcie-root-complex trick is maybe needed. > > i440fx and recent AMD Crimson drivers > https://www.redhat.com/archives/vfio-users/2016-April/msg00153.html > > Remove your Radeon RX Vega 56 passthrough config from > <hostdev>~~</hostdev>section and using libvirt "<qemu:arg>" option, some > thing like this. > > <qemu:commandline><qemu:argvalue='-device'/><qemu:argvalue='ioh3420,bus=pci.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1'/><qemu:argvalue='-device'/><qemu:argvalue='vfio-pci,host=01:00.0,bus=root.1,addr=00.0,multifunction=on,rombar=on'/><qemu:argvalue='-device'/><qemu:argvalue='vfio-pci,host=01:00.1,bus=root.1,addr=00.1'/></qemu:commandline> > > I was only denied permission to /dev/vfio/16 wen trying this, even if I attached the audio interface the usual way, and if I made qemu run as root.
> Or, Use Q35 type VM with Intel ioh3420 pcie-root-port. For example, see > below. > > <controller type='pci' index='2' model='pcie-root-port'> > <model name='ioh3420'/> > <target chassis='2' port='0x11'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x02' > function='0x1'/> > </controller> > > ~~~~~ snip ~~~~~~ > > <hostdev mode='subsystem' type='pci' managed='yes'> > <source> > <address domain='0x0000' bus='0xaf' slot='0x00' function='0x0'/> > </source> > <rom bar='on'/> > <address type='pci' domain='0x0000' bus='0x02' slot='0x00' > function='0x0' multifunction='on'/> > </hostdev> > <hostdev mode='subsystem' type='pci' managed='yes'> > <source> > <address domain='0x0000' bus='0xaf' slot='0x00' function='0x1'/> > </source> > <address type='pci' domain='0x0000' bus='0x02' slot='0x00' > function='0x1'/> > </hostdev> > Thank you, this approach worked. I was unsure what entry of `<model name='...'/>` I should replace so I replaced them all. Should they remain so? Updated XML is attached.
<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> <name>vidya-q35</name> <uuid>4402f238-85d4-446a-b295-44a7d89094ff</uuid> <memory unit='KiB'>8388608</memory> <currentMemory unit='KiB'>8388608</currentMemory> <memoryBacking> <hugepages/> </memoryBacking> <vcpu placement='static'>4</vcpu> <iothreads>2</iothreads> <iothreadids> <iothread id='1'/> <iothread id='2'/> </iothreadids> <cputune> <vcpupin vcpu='0' cpuset='0'/> <vcpupin vcpu='1' cpuset='4'/> <vcpupin vcpu='2' cpuset='1'/> <vcpupin vcpu='3' cpuset='5'/> <iothreadpin iothread='1' cpuset='2'/> <iothreadpin iothread='2' cpuset='6'/> </cputune> <os> <type arch='x86_64' machine='pc-q35-3.0'>hvm</type> <loader readonly='yes' type='pflash'>/run/libvirt/nix-ovmf/OVMF_CODE.fd</loader> <nvram>/var/lib/libvirt/qemu/nvram/vidya-q35_VARS.fd</nvram> </os> <features> <acpi/> <apic/> <vmport state='off'/> </features> <cpu mode='host-passthrough' check='none'> <topology sockets='1' cores='2' threads='2'/> </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>destroy</on_crash> <pm> <suspend-to-mem enabled='no'/> <suspend-to-disk enabled='no'/> </pm> <devices> <emulator>/run/libvirt/nix-emulators/qemu-kvm</emulator> <disk type='block' device='disk'> <driver name='qemu' type='raw' cache='none' io='threads' iothread='1'/> <source dev='/dev/disk/by-partlabel/vidya'/> <target dev='vda' bus='virtio'/> <boot order='1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x10' function='0x0'/> </disk> <disk type='block' device='disk'> <driver name='qemu' type='raw' cache='none' io='threads' iothread='2'/> <source dev='/dev/pool/vidya'/> <target dev='vdb' bus='virtio'/> <boot order='2'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </disk> <controller type='usb' index='0' model='ich9-ehci1'> <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x7'/> </controller> <controller type='usb' index='0' model='ich9-uhci1'> <master startport='0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x0' multifunction='on'/> </controller> <controller type='usb' index='0' model='ich9-uhci2'> <master startport='2'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x1'/> </controller> <controller type='usb' index='0' model='ich9-uhci3'> <master startport='4'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x2'/> </controller> <controller type='pci' index='0' model='pcie-root'/> <controller type='pci' index='1' model='pcie-root-port'> <model name='ioh3420'/> <target chassis='1' port='0x10'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0' multifunction='on'/> </controller> <controller type='pci' index='2' model='pcie-to-pci-bridge'> <model name='pcie-pci-bridge'/> <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/> </controller> <controller type='pci' index='3' model='pcie-root-port'> <model name='ioh3420'/> <target chassis='3' port='0x11'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x1'/> </controller> <controller type='pci' index='4' model='pcie-root-port'> <model name='ioh3420'/> <target chassis='4' port='0x12'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x2'/> </controller> <controller type='pci' index='5' model='pcie-root-port'> <model name='ioh3420'/> <target chassis='5' port='0x13'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x3'/> </controller> <controller type='pci' index='6' model='pcie-root-port'> <model name='ioh3420'/> <target chassis='6' port='0x14'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x4'/> </controller> <controller type='sata' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/> </controller> <interface type='network'> <mac address='52:54:00:3d:06:4d'/> <source network='default'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/> </interface> <input type='mouse' bus='ps2'/> <input type='keyboard' bus='ps2'/> <sound model='ich9'> <address type='pci' domain='0x0000' bus='0x00' slot='0x1b' function='0x0'/> </sound> <hostdev mode='subsystem' type='pci' managed='yes'> <source> <address domain='0x0000' bus='0x04' slot='0x00' function='0x0'/> </source> <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0' multifunction='on'/> </hostdev> <hostdev mode='subsystem' type='pci' managed='yes'> <source> <address domain='0x0000' bus='0x04' slot='0x00' function='0x1'/> </source> <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/> </hostdev> <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x045e'/> <product id='0x028e'/> </source> <address type='usb' bus='0' port='1'/> </hostdev> <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x04b4'/> <product id='0x1223'/> </source> <address type='usb' bus='0' port='2'/> </hostdev> <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x04d9'/> <product id='0x0169'/> </source> <address type='usb' bus='0' port='3'/> </hostdev> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/> </memballoon> </devices> </domain>
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