We are seeing issues(data is unavailable) with usage of
the following Libvirt APIs, on RHEL5, while they are working Ok with
RHEL 6, SLES10/11.
CPU dumpxml from
Domain.getXMLDesc() returns no xml nodes for CPU model and topology and
its sub-elements such as sockets, cores, threads.
Domain.memoryStats(int) : added since 0.5.0