[libvirt] Adding multiple graphics devices to a vm

[bancfc at openmailbox.org]

I was trying different video devices to correct the problem of having 
1024x768 as the maximum resolution for Debian guests. I found out that 
adding VMVGA gives the wide variety of choice of resolutions I was 
looking for and adjusts the display properly, in contrast to the 
deformed way xconf file did. However I still want to make use of SPICE 
and QXL.

Is there a way to have both vmvga and qxl attached and working on the 
same guest?

How would I go about doing this in the XML?

thanks.