I am trying to use the virt-manager which seems to use some sort of XML description.
I cannot find/there does not appear to be an XML tag that is equivalent to the '-std vga' option that I see I need to get a display resolution greater than 800x600 wuth a Centos guest. Some googling led me to a libvirt.org description
I tried adding a '<video>' tag (nor sure where it belongs) and virt-manager python choked on it.
(I am using Fedora 11)