On Tue, Sep 09, 2008 at 10:23:59PM +0100, Henri Cook wrote:
  

<cmdstring>{cmd} {options}</cmdstring> (default)
    

This isn't going into libvirt because the whole point of libvirt is to
be hypervisor independent.  Nevertheless, you can do this, and the
'nice' thing, by setting <emulator> to be your own custom shell
script.

Rich.