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

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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