This issue was hashed about at this list a few months
ago, please go dig the archive.
> Does Linux protect the cpu at all in this instance?
Sure, supervisor only -- but if malicious user gets into the
supervisor mode to execute the microcode download, you have
been had anyway in many fronts.
Of course Intel does not document *publicly*, how you can
write microcode for each processor version. Such a thing is
*very* difficult to reverse-engineer without full documents!
(Ergo, I don't fear that.)
> jf
> -
/Matti Aarnio <matti.aarnio@sonera.fi>
-
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