libvirt + qemu передача PCI и драйверы NVIDIA, не работающие над Ubuntu 16.04

Я имею, устанавливают виртуальную машину с передачей видеокарты NVIDIA, и после установки необходимых драйверов, сессия LightDM не запускается (я вижу зазывалу, но сеанс пользователя не запускается).

Определение XML машины в libvirt следует:

<domain type='kvm' id='8' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
  <name>Ubuntu</name>
  <uuid>63f0800e-73f8-27ac-59a0-791fc68f7e25</uuid>
  <description>None</description>
  <memory unit='KiB'>4194304</memory>
  <currentMemory unit='KiB'>4194304</currentMemory>
  <vcpu placement='static'>2</vcpu>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='x86_64' machine='pc-i440fx-xenial'>hvm</type>
    <boot dev='hd'/>
    <boot dev='cdrom'/>
    <bootmenu enable='yes'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <cpu mode='host-passthrough'>
    <topology sockets='1' cores='2' threads='1'/>
    <feature policy='require' name='abm'/>
    <feature policy='require' name='pdpe1gb'/>
    <feature policy='require' name='rdrand'/>
    <feature policy='require' name='f16c'/>
    <feature policy='require' name='osxsave'/>
    <feature policy='require' name='pdcm'/>
    <feature policy='require' name='xtpr'/>
    <feature policy='require' name='tm2'/>
    <feature policy='require' name='est'/>
    <feature policy='require' name='vmx'/>
    <feature policy='require' name='ds_cpl'/>
    <feature policy='require' name='monitor'/>
    <feature policy='require' name='dtes64'/>
    <feature policy='require' name='pbe'/>
    <feature policy='require' name='tm'/>
    <feature policy='require' name='ht'/>
    <feature policy='require' name='ss'/>
    <feature policy='require' name='acpi'/>
    <feature policy='require' name='ds'/>
    <feature policy='require' name='vme'/>
  </cpu>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/bin/kvm-spice</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2'/>
      <source file='/virtualstorage/vms/Ubuntu.img'/>
      <backingStore/>
      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <source file='/virtualstorage/iso/ubuntu-16.04.1-desktop-amd64.iso'/>
      <backingStore/>
      <target dev='hda' bus='ide'/>
      <readonly/>
      <alias name='ide0-1-1'/>
      <address type='drive' controller='0' bus='1' target='0' unit='1'/>
    </disk>
    <controller type='ide' index='0'>
      <alias name='ide'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='usb' index='0'>
      <alias name='usb'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'>
      <alias name='pci.0'/>
    </controller>
    <interface type='network'>
      <mac address='52:54:00:40:2b:aa'/>
      <source network='default' bridge='virbr0'/>
      <target dev='vnet0'/>
      <model type='virtio'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' 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>
    <input type='tablet' bus='usb'>
      <alias name='input0'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='vnc' port='5900' autoport='yes' listen='0.0.0.0'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <video>
      <model type='cirrus' vram='16384' heads='1'/>
      <alias name='video0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
      </source>
      <alias name='hostdev0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' 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>
      <alias name='hostdev1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x1'/>
    </hostdev>
    <memballoon model='none'>
      <alias name='balloon0'/>
    </memballoon>
  </devices>
  <qemu:commandline>
    <qemu:arg value='-vga'/>
    <qemu:arg value='none'/>
  </qemu:commandline>
</domain>

Установленный драйвер NVIDIA является NVIDIA-Linux-x86_64-367.57.

dmesg | grep -i NVIDIA:

[    1.263194] nvidia: module license 'NVIDIA' taints kernel.
[    1.266276] nvidia: module verification failed: signature and/or required key missing - tainting kernel
[    1.330297] nvidia-nvlink: Nvlink Core is being initialized, major device number 247
[    1.330312] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  367.57  Mon Oct  3 20:37:01 PDT 2016
[    1.407850] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms  367.57  Mon Oct  3 20:32:57 PDT 2016
[    1.424992] [drm] [nvidia-drm] [GPU ID 0x00000006] Loading driver
[    2.078662] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:06.1/sound/card0/input6
[    2.078733] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:06.1/sound/card0/input7
[    2.078794] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:06.1/sound/card0/input8
[    2.078832] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:06.1/sound/card0/input9

Заранее спасибо.