On 07/19/2013 09:34 AM, Peter Matulis wrote: > Hi everybody, > > Using libvirt 1.0.0 how does one change the L2 cache size of the virtual > CPU? I can change the CPU model but the cache size never changes: > > <cpu mode='host-passthrough'/> > <model>Nehalem</model> > > OR > > <cpu match='exact' mode='custom'/> > <model>Nehalem</model> > > Is there a qemu requirement? As far as I know, qemu does not expose a command line option that lets you determine the size of the L2 cache that the guest will see; as long as qemu doesn't have the knob, then libvirt can't expose the knob in XML. So yes, you'd have to implement it in qemu first. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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