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

Keir Fraser
2006-03-22T09:32:56Z

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.

-- Keir