Comment 8 for bug 1706630

Re the state of qemu ver, I've asked someone else to comment on that. XML from before was:

==> nova/nova-compute.log <==
2017-08-28 13:15:46.413 23162 ERROR nova.virt.libvirt.guest [req-e2fc9a90-7433-479c-9d96-c2818641fe45 b147293e0a7941899301c59b48068e51 18b9fc2bdb6b45a0a682d79d9130a975 - default default] Error launching a defined domain with XML: <domain type='kvm'>
  <name>instance-00000007</name>
  <uuid>674a2e53-cfbb-4043-a6f0-09536acc1781</uuid>
  <metadata>
    <nova:instance xmlns:nova="http://openstack.org/xmlns/libvirt/nova/1.0">
      <nova:package version="16.0.0"/>
      <nova:name>openstack-on-lxd-ftw</nova:name>
      <nova:creationTime>2017-08-28 13:15:40</nova:creationTime>
      <nova:flavor name="m2.small">
        <nova:memory>256</nova:memory>
        <nova:disk>3</nova:disk>
        <nova:swap>0</nova:swap>
        <nova:ephemeral>0</nova:ephemeral>
        <nova:vcpus>1</nova:vcpus>
      </nova:flavor>
      <nova:owner>
        <nova:user uuid="b147293e0a7941899301c59b48068e51">admin</nova:user>
        <nova:project uuid="18b9fc2bdb6b45a0a682d79d9130a975">admin</nova:project>
      </nova:owner>
      <nova:root type="image" uuid="149520da-94a3-43e6-b2ac-25be1004d16a"/>
    </nova:instance>
  </metadata>
  <memory unit='KiB'>262144</memory>
  <currentMemory unit='KiB'>262144</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <cputune>
    <shares>1024</shares>
  </cputune>
  <os>
    <type arch='aarch64' machine='virt-2.8'>hvm</type>
    <loader readonly='yes' type='pflash'>/usr/share/AAVMF/AAVMF_CODE.fd</loader>
    <nvram>/var/lib/libvirt/qemu/nvram/instance-00000007_VARS.fd</nvram>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <gic version='3'/>
  </features>
  <cpu mode='host-passthrough' check='none'>
    <topology sockets='1' cores='1' threads='1'/>
  </cpu>
  <clock offset='utc'>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='rtc' tickpolicy='catchup'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>