Xen (Single-Guest System, Fullscreen, Performance)
 

Hello everyone.

I would like to know if you can make a Xen Single-Guest System that runs in fullscreen on the domain without having to connect trough VNC or SDL.

The idea is to use Xen as a layer to emulate another architecture, for example x86 ..

And if so, which parameters should you have to give this single guest maximum performance?

I think xen would use just simple framebuffer of the host machine. So it wouldn't be having any video acceleration. Otherwise with amd and intel virtualization features of recent processors can give full performance for the guest.
See
cat /proc/cpuinfo
output.
in the cpu flags section see svm flag for amd processors.