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

From: Chris Wright
Date: Wed Mar 22 2006 - 14:26:20 EST


* Keir Fraser (Keir.Fraser@xxxxxxxxxxxx) 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
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