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

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

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


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