Re: [Xen-devel] [RFC PATCH 14/35] subarch modify CPU capabilities

Chris Wright
2006-03-22T19:29:09Z

* Keir Fraser (Keir.Fraser@cl.cam.ac.uk) wrote:
>
> On 22 Mar 2006, at 08:35, Zachary Amsden wrote:
>
> >That's pretty heinous. Suppose Xen decides to start supporting any of
> >these features. Now, you need to change all of the Xen modified
> >kernels to remove pieces of this.
>
> Well, old kernels would still work and most of those features aren't
> all that useful in a virtualised environment anyway. But, point taken,
> adding a hypervisor trap for CPUID and making use of it would clean up
> that code.

Agreed, added to todo.

thanks,
-chris