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    SubjectRe: [PATCH 1/10] Cr4 is valid on some 486s
    Gerd Knorr wrote:

    >> Yep, extending alternatives is probably better than duplicating the
    >> code. Maybe having some alternative_smp() macro which places both
    >> code versions into the .altinstr_replacement table? If that sounds
    >> ok I'll try to come up with a experimental patch.
    > i.e. something like this (as basic idea, patch is far away from doing
    > anything useful ...)?

    You still need to preserve the originals so that you can patch in both
    directions. In the dynamic scenario, you need a multi-way set of
    alternatives, with the most conservative of those compiled in inline.

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