====== No KVM ======
  * XEN like DAI Testbed
  
  * Check DomU for VM mode: https://serverfault.com/questions/511923/determine-which-guest-is-running-on-xen-hvm-or-pv-guest

===== Use QEMU only =====

Uninstall qemu-kvm

install qemu
    apt-get install qemu
 
===== Libvirt =====
  * https://libvirt.org/formatdomain.html#elements
  * <emulator> on Fedora: https://github.com/openshift/cluster-api-provider-libvirt/issues/2
=== libvirt.xml: ===

<code>
<domain type='qemu'>        <---------- here
  <name>REPLACE_NAME</name>
  <memory unit='MiB'>REPLACE_MEM</memory>
  <currentMemory unit='MiB'>REPLACE_MEM</currentMemory>
  <vcpu placement='static'>REPLACE_CPU</vcpu>
  <os>
    <type arch='x86_64' machine='pc-i440fx-trusty'>hvm</type>
    <boot dev='hd'/>
    <boot dev='network'/>
    <bios useserial='yes' rebootTimeout='0'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <cpu mode='host-passthrough'/>     <--------- remove!
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <emulator>/usr/bin/kvm-spice</emulator>   <-------- Fedora has different emulator /usr/sbin/qemu-kvm
  <devices>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw'/>
      <source file='REPLACE_IMAGE'/>
      <target dev='vda' bus='virtio'/>
    </disk>
    <interface type='network'>
      <mac address=REPLACE_BOOT_MAC/>
      <source network='REPLACE_NET_INSTALL'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </interface>
    <interface type='network'>
      <source network='REPLACE_NET_IAAS'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </interface>
    <interface type='network'>
      <source network='default'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </interface>
    <interface type='network'>
      <source network='default'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
    </interface>
    <serial type='pty'>
      <source path='/dev/pts/0'/>
    </serial>
    <console type='pty' tty='/dev/pts/0'>
      <source path='/dev/pts/0'/>
      <target type='serial' port='0'/>
    </console>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='vnc' port='5901' autoport='yes' listen='0.0.0.0'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <video>
      <model type='cirrus' vram='9216' heads='1'/>
      <alias name='video0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
  </devices>
</domain>

</code>

==== Headline ====

    virsh define /home/opnfv/compass/compass4nfv/work/deploy/vm/host2/libvirt.xml

====== Xen with Libvirt ======