Comment 18 for bug 1915811

#VERIFICATION BIONIC

Using the test case described in the description, where a VM has 128 vcpus assigned, the version in -updates does not list the topology:

$ dpkg -l |grep libvirt
ii libvirt-bin 4.0.0-1ubuntu8.17 amd64 programs for the libvirt library
ii libvirt-clients 4.0.0-1ubuntu8.17 amd64 Programs for the libvirt library
ii libvirt-daemon 4.0.0-1ubuntu8.17 amd64 Virtualization daemon
ii libvirt-daemon-driver-storage-rbd 4.0.0-1ubuntu8.17 amd64 Virtualization daemon RBD storage driver
ii libvirt-daemon-system 4.0.0-1ubuntu8.17 amd64 Libvirt daemon configuration files
ii libvirt0:amd64 4.0.0-1ubuntu8.17 amd64 library for interfacing with different virtualization systems

$ virsh capabilities | xmllint --xpath '/capabilities/host/topology' -
XPath set is empty

The package in -proposed fixes the issue (output shortened):

$ dpkg -l |grep libvirt
ii libvirt-bin 4.0.0-1ubuntu8.19 amd64 programs for the libvirt library
ii libvirt-clients 4.0.0-1ubuntu8.19 amd64 Programs for the libvirt library
ii libvirt-daemon 4.0.0-1ubuntu8.19 amd64 Virtualization daemon
ii libvirt-daemon-driver-storage-rbd 4.0.0-1ubuntu8.19 amd64 Virtualization daemon RBD storage driver
ii libvirt-daemon-system 4.0.0-1ubuntu8.19 amd64 Libvirt daemon configuration files
ii libvirt0:amd64 4.0.0-1ubuntu8.19 amd64 library for interfacing with different virtualization systems

$ virsh capabilities | xmllint --xpath '/capabilities/host/topology' -
<topology>
      <cells num="1">
        <cell id="0">
          <memory unit="KiB">5047560</memory>
          <pages unit="KiB" size="4">1261890</pages>
          <pages unit="KiB" size="2048">0</pages>
          <distances>
            <sibling id="0" value="10"/>
          </distances>
          <cpus num="128">
            <cpu id="0" socket_id="0" core_id="0" siblings="0"/>
            ...
            <cpu id="127" socket_id="127" core_id="0" siblings="127"/>
          </cpus>
        </cell>
      </cells>
    </topology>