[Fedora-xen] para or fully virtualization

[Henk Altena]

Hi everybody

Following the quickstart guide of xen I can only use para-virtualized 
guests because my Asus A8V Deluxe mainboard with AMD 64 bit processor 
does not have the svm flag.
Can anyone tell me the difference between Para- and Fully-virualized 
guests ?
What are the limitations of a system that only supports para-virtulazed 
guests ?

Henk