Description of problem: AFAIK only paravirt works out of the box on RHEL5, so the fullvirt option in the virt-manager install wizard should be disabled by default. Version-Release number of selected component (if applicable): 0.5.3 How reproducible: every time Steps to Reproduce: 1. install guest with New 2. get to "Choosing a virtualization method" Actual results: 2. Fully virtualized optional available (but no cpu archs listed) Expected results: 3. No fullvirt option to be available unless it works.
Fullvirts just fine out of the box if your hardware is suitable. The CPU arch list is irrelevant for Xen since it only virtualizes native arch, no emulation.