Re: [PATCH v4 00/11] x86/microcode: Early load microcode

From: Borislav Petkov
Date: Fri Dec 21 2012 - 10:14:21 EST

On Fri, Dec 21, 2012 at 03:09:48PM +0000, Yu, Fenghua wrote:
> > Why loading microcode this early is important? Why it is bad to load
> > it at the end of (initial) boot?
> >
> If not loading microcode early, we may hit some issues (e.g. PSE on
> Atom) and disable some CPU features. These issues can not be fixed by
> loading ucode during run time.

This question keeps popping up with this patchset, maybe you could
enlarge the first paragraph of Documentation/x86/early-microcode.txt
with a bit more detail and examples.



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