We are trying to get the cpu topology data (cores, sockets, threads) using the Java binding of the libvirt API, after connecting to a hypervisor. We are expecting the domain (vm) XML payload to contain the <cpu> element with the <topology> sub-element, but it is not present.

  <cpu mode='custom' match='exact'>
    <model fallback='allow'>Penryn</model>
    <vendor>Intel</vendor>
    <feature policy='require' name='tm2'/>
...