Potential problem on NUMA machines

[Philippe Berthault <Philippe.Berthault@xxxxxxxx>]

In the virNodeInfo structure, it's assumed that all nodes of 
multiprocessor systems have the same number of sockets. But on NUMA 
machines, it's not mandatory that all SMP nodes have the same number of 
sockets.

So there is a potential problem when computing the number of processors 
by using the informations returned in the virNodeInfo structure.

This problem exists also in Xen (in the "xm info" command) but both Xen 
and libvirt are wrong.