Re: test11-pre5, Athlon, and Machine Check Architecture

["H. Peter Anvin" <hpa@zytor.com>]

Followup to:  <Pine.LNX.4.21.0011152107420.2791-100000@neo.local>
By author:    davej@suse.de
In newsgroup: linux.dev.kernel
>
> 
> > However, since at least AMD Athlon actually advertises MCA, I would
> > like to verify that the code works on these processors before
> > submitting it to Linus.
> 
> The Athlon MCA is basically the same architecture-wise as Pentium Pro/II
> But there are some differences..  Until AMD make document 21656 (BIOS
> writers guide) public (or even a subset of it), we'll not be able to take
> advantage of these extra features.
> 
> I'd suggest that until this happens, we leave bluesmoke.c Intel only.
> 

That's completely the wrong way to look at it.  AMD are certainly free
to add features, what they aren't free to do is making code that
expects the documented behaviour fail -- and if so, it's their bug.  I
have so far gotten no indication that that is the case; the only thing
I have gotten so far is a positive report that it at least doesn't do
the wrong thing in the no-#MF case.

	-hpa
-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
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