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