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