Re: [PATCH 1/10] Cr4 is valid on some 486s
From: Zachary Amsden
Date: Tue Nov 15 2005 - 11:04:13 EST
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.
Zach
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