FERKI / Rex-1.16.1 / t / issue / 948 / capabilities.xml 
<capabilities>

  <host>
    <uuid>9d400c30-4e27-11e0-a18b-1c7508ed862e</uuid>
    <cpu>
      <arch>x86_64</arch>
      <model>SandyBridge</model>
      <vendor>Intel</vendor>
      <topology sockets='1' cores='4' threads='2'/>
      <feature name='invtsc'/>
      <feature name='osxsave'/>
      <feature name='pcid'/>
      <feature name='pdcm'/>
      <feature name='xtpr'/>
      <feature name='tm2'/>
      <feature name='est'/>
      <feature name='vmx'/>
      <feature name='ds_cpl'/>
      <feature name='monitor'/>
      <feature name='dtes64'/>
      <feature name='pbe'/>
      <feature name='tm'/>
      <feature name='ht'/>
      <feature name='ss'/>
      <feature name='acpi'/>
      <feature name='ds'/>
      <feature name='vme'/>
      <pages unit='KiB' size='4'/>
      <pages unit='KiB' size='2048'/>
    </cpu>
    <power_management>
      <suspend_mem/>
    </power_management>
    <migration_features>
      <live/>
      <uri_transports>
        <uri_transport>tcp</uri_transport>
        <uri_transport>rdma</uri_transport>
      </uri_transports>
    </migration_features>
    <topology>
      <cells num='1'>
        <cell id='0'>
          <memory unit='KiB'>16282820</memory>
          <pages unit='KiB' size='4'>4070705</pages>
          <pages unit='KiB' size='2048'>0</pages>
          <distances>
            <sibling id='0' value='10'/>
          </distances>
          <cpus num='8'>
            <cpu id='0' socket_id='0' core_id='0' siblings='0-1'/>
            <cpu id='1' socket_id='0' core_id='0' siblings='0-1'/>
            <cpu id='2' socket_id='0' core_id='1' siblings='2-3'/>
            <cpu id='3' socket_id='0' core_id='1' siblings='2-3'/>
            <cpu id='4' socket_id='0' core_id='2' siblings='4-5'/>
            <cpu id='5' socket_id='0' core_id='2' siblings='4-5'/>
            <cpu id='6' socket_id='0' core_id='3' siblings='6-7'/>
            <cpu id='7' socket_id='0' core_id='3' siblings='6-7'/>
          </cpus>
        </cell>
      </cells>
    </topology>
    <secmodel>
      <model>apparmor</model>
      <doi>0</doi>
    </secmodel>
    <secmodel>
      <model>dac</model>
      <doi>0</doi>
      <baselabel type='kvm'>+121:+129</baselabel>
      <baselabel type='qemu'>+121:+129</baselabel>
    </secmodel>
  </host>

  <guest>
    <os_type>hvm</os_type>
    <arch name='i686'>
      <wordsize>32</wordsize>
      <emulator>/usr/bin/qemu-system-i386</emulator>
      <machine canonical='pc-i440fx-vivid' maxCpus='255'>ubuntu</machine>
      <machine maxCpus='255'>pc-0.12</machine>
      <machine maxCpus='255'>pc-1.3</machine>
      <machine maxCpus='255'>pc-q35-1.6</machine>
      <machine maxCpus='255'>pc-q35-1.5</machine>
      <machine maxCpus='255'>pc-i440fx-1.6</machine>
      <machine maxCpus='255'>pc-q35-2.2</machine>
      <machine maxCpus='1'>xenpv</machine>
      <machine maxCpus='255'>pc-i440fx-1.7</machine>
      <machine maxCpus='255'>pc-0.11</machine>
      <machine maxCpus='255'>pc-q35-2.1</machine>
      <machine canonical='pc-i440fx-2.3' maxCpus='255'>pc</machine>
      <machine maxCpus='255'>pc-0.10</machine>
      <machine maxCpus='255'>pc-i440fx-trusty</machine>
      <machine maxCpus='255'>pc-1.2</machine>
      <machine maxCpus='255'>pc-i440fx-2.2</machine>
      <machine maxCpus='1'>isapc</machine>
      <machine maxCpus='255'>pc-q35-1.4</machine>
      <machine maxCpus='128'>xenfv</machine>
      <machine maxCpus='255'>pc-0.15</machine>
      <machine canonical='pc-i440fx-utopic' maxCpus='255'>ubuntu</machine>
      <machine maxCpus='255'>pc-i440fx-1.5</machine>
      <machine maxCpus='255'>pc-0.14</machine>
      <machine maxCpus='255'>pc-i440fx-1.4</machine>
      <machine maxCpus='255'>pc-q35-2.0</machine>
      <machine maxCpus='255'>pc-1.1</machine>
      <machine maxCpus='255'>pc-q35-1.7</machine>
      <machine maxCpus='255'>pc-i440fx-2.1</machine>
      <machine maxCpus='255'>pc-1.0</machine>
      <machine maxCpus='255'>pc-i440fx-2.0</machine>
      <machine canonical='pc-q35-2.3' maxCpus='255'>q35</machine>
      <machine maxCpus='255'>pc-0.13</machine>
      <domain type='qemu'/>
      <domain type='kvm'>
        <emulator>/usr/bin/kvm-spice</emulator>
        <machine canonical='pc-i440fx-vivid' maxCpus='255'>ubuntu</machine>
        <machine maxCpus='255'>pc-1.3</machine>
        <machine maxCpus='255'>pc-0.12</machine>
        <machine maxCpus='255'>pc-q35-1.6</machine>
        <machine maxCpus='255'>pc-q35-1.5</machine>
        <machine maxCpus='255'>pc-i440fx-1.6</machine>
        <machine maxCpus='255'>pc-q35-2.2</machine>
        <machine maxCpus='255'>pc-i440fx-1.7</machine>
        <machine maxCpus='1'>xenpv</machine>
        <machine maxCpus='255'>pc-q35-2.1</machine>
        <machine maxCpus='255'>pc-0.11</machine>
        <machine maxCpus='255'>pc-0.10</machine>
        <machine maxCpus='255'>pc-i440fx-trusty</machine>
        <machine maxCpus='255'>pc-i440fx-2.2</machine>
        <machine maxCpus='255'>pc-1.2</machine>
        <machine maxCpus='1'>isapc</machine>
        <machine canonical='pc-i440fx-2.3' maxCpus='255'>pc</machine>
        <machine maxCpus='255'>pc-q35-1.4</machine>
        <machine maxCpus='128'>xenfv</machine>
        <machine maxCpus='255'>pc-0.15</machine>
        <machine canonical='pc-i440fx-utopic' maxCpus='255'>ubuntu</machine>
        <machine maxCpus='255'>pc-i440fx-1.5</machine>
        <machine maxCpus='255'>pc-i440fx-1.4</machine>
        <machine maxCpus='255'>pc-q35-2.0</machine>
        <machine maxCpus='255'>pc-0.14</machine>
        <machine maxCpus='255'>pc-1.1</machine>
        <machine maxCpus='255'>pc-q35-1.7</machine>
        <machine maxCpus='255'>pc-i440fx-2.1</machine>
        <machine maxCpus='255'>pc-1.0</machine>
        <machine maxCpus='255'>pc-i440fx-2.0</machine>
        <machine canonical='pc-q35-2.3' maxCpus='255'>q35</machine>
        <machine maxCpus='255'>pc-0.13</machine>
      </domain>
    </arch>
    <features>
      <cpuselection/>
      <deviceboot/>
      <disksnapshot default='on' toggle='no'/>
      <acpi default='on' toggle='yes'/>
      <apic default='on' toggle='no'/>
      <pae/>
      <nonpae/>
    </features>
  </guest>

  <guest>
    <os_type>hvm</os_type>
    <arch name='x86_64'>
      <wordsize>64</wordsize>
      <emulator>/usr/bin/qemu-system-x86_64</emulator>
      <machine canonical='pc-i440fx-vivid' maxCpus='255'>ubuntu</machine>
      <machine maxCpus='255'>pc-1.3</machine>
      <machine maxCpus='255'>pc-0.12</machine>
      <machine maxCpus='255'>pc-q35-1.6</machine>
      <machine maxCpus='255'>pc-q35-1.5</machine>
      <machine maxCpus='255'>pc-i440fx-1.6</machine>
      <machine maxCpus='255'>pc-q35-2.2</machine>
      <machine maxCpus='255'>pc-i440fx-1.7</machine>
      <machine maxCpus='1'>xenpv</machine>
      <machine maxCpus='255'>pc-q35-2.1</machine>
      <machine maxCpus='255'>pc-0.11</machine>
      <machine maxCpus='255'>pc-0.10</machine>
      <machine maxCpus='255'>pc-i440fx-trusty</machine>
      <machine maxCpus='255'>pc-i440fx-2.2</machine>
      <machine maxCpus='255'>pc-1.2</machine>
      <machine maxCpus='1'>isapc</machine>
      <machine canonical='pc-i440fx-2.3' maxCpus='255'>pc</machine>
      <machine maxCpus='255'>pc-q35-1.4</machine>
      <machine maxCpus='128'>xenfv</machine>
      <machine maxCpus='255'>pc-0.15</machine>
      <machine canonical='pc-i440fx-utopic' maxCpus='255'>ubuntu</machine>
      <machine maxCpus='255'>pc-i440fx-1.5</machine>
      <machine maxCpus='255'>pc-i440fx-1.4</machine>
      <machine maxCpus='255'>pc-q35-2.0</machine>
      <machine maxCpus='255'>pc-0.14</machine>
      <machine maxCpus='255'>pc-1.1</machine>
      <machine maxCpus='255'>pc-q35-1.7</machine>
      <machine maxCpus='255'>pc-i440fx-2.1</machine>
      <machine maxCpus='255'>pc-1.0</machine>
      <machine maxCpus='255'>pc-i440fx-2.0</machine>
      <machine canonical='pc-q35-2.3' maxCpus='255'>q35</machine>
      <machine maxCpus='255'>pc-0.13</machine>
      <domain type='qemu'/>
      <domain type='kvm'>
        <emulator>/usr/bin/kvm-spice</emulator>
        <machine canonical='pc-i440fx-vivid' maxCpus='255'>ubuntu</machine>
        <machine maxCpus='255'>pc-1.3</machine>
        <machine maxCpus='255'>pc-0.12</machine>
        <machine maxCpus='255'>pc-q35-1.6</machine>
        <machine maxCpus='255'>pc-q35-1.5</machine>
        <machine maxCpus='255'>pc-i440fx-1.6</machine>
        <machine maxCpus='255'>pc-q35-2.2</machine>
        <machine maxCpus='255'>pc-i440fx-1.7</machine>
        <machine maxCpus='1'>xenpv</machine>
        <machine maxCpus='255'>pc-q35-2.1</machine>
        <machine maxCpus='255'>pc-0.11</machine>
        <machine maxCpus='255'>pc-0.10</machine>
        <machine maxCpus='255'>pc-i440fx-trusty</machine>
        <machine maxCpus='255'>pc-i440fx-2.2</machine>
        <machine maxCpus='255'>pc-1.2</machine>
        <machine maxCpus='1'>isapc</machine>
        <machine canonical='pc-i440fx-2.3' maxCpus='255'>pc</machine>
        <machine maxCpus='255'>pc-q35-1.4</machine>
        <machine maxCpus='128'>xenfv</machine>
        <machine maxCpus='255'>pc-0.15</machine>
        <machine canonical='pc-i440fx-utopic' maxCpus='255'>ubuntu</machine>
        <machine maxCpus='255'>pc-i440fx-1.5</machine>
        <machine maxCpus='255'>pc-i440fx-1.4</machine>
        <machine maxCpus='255'>pc-q35-2.0</machine>
        <machine maxCpus='255'>pc-0.14</machine>
        <machine maxCpus='255'>pc-1.1</machine>
        <machine maxCpus='255'>pc-q35-1.7</machine>
        <machine maxCpus='255'>pc-i440fx-2.1</machine>
        <machine maxCpus='255'>pc-1.0</machine>
        <machine maxCpus='255'>pc-i440fx-2.0</machine>
        <machine canonical='pc-q35-2.3' maxCpus='255'>q35</machine>
        <machine maxCpus='255'>pc-0.13</machine>
      </domain>
    </arch>
    <features>
      <cpuselection/>
      <deviceboot/>
      <disksnapshot default='on' toggle='no'/>
      <acpi default='on' toggle='yes'/>
      <apic default='on' toggle='no'/>
    </features>
  </guest>

</capabilities>