On Mon, Sep 12, 2011 at 16:33:53 +0200, Olivier BONHOMME wrote: > Hello, > > Thanks for your answer. My virsh capabilities is the following : > > <cpu> > <arch>x86_64</arch> > <model>pentium3</model> > <vendor>Intel</vendor> > <topology sockets='1' cores='4' threads='1'/> > <feature name='lahf_lm'/> > <feature name='lm'/> > <feature name='syscall'/> > <feature name='sse4.1'/> > <feature name='dca'/> > <feature name='xtpr'/> > <feature name='cx16'/> > <feature name='ssse3'/> > <feature name='tm2'/> > <feature name='est'/> > <feature name='vmx'/> > <feature name='ds_cpl'/> > <feature name='monitor'/> > <feature name='pni'/> > <feature name='pbe'/> > <feature name='tm'/> > <feature name='ht'/> > <feature name='ss'/> > <feature name='sse2'/> > <feature name='acpi'/> > <feature name='ds'/> > <feature name='clflush'/> > <feature name='apic'/> > </cpu> > > About what you say, I totally agree. It's just I am very surprised that > an Intel Xeon E5430 is detected just as a pentium3 That's because your CPU doesn't support nx feature, which is included in all models better than pentium3. Jirka