linux-kernel - Re: [PATCH 1/2] x86: Track minimum microcode revision globally

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Message-ID: <20120612205956.GB26817@liondog.tnic>
Date:	Tue, 12 Jun 2012 22:59:56 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Andi Kleen <andi@...stfloor.org>, x86@...nel.org,
	eranian@...gle.com, linux-kernel@...r.kernel.org,
	a.p.zijlstra@...llo.nl, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 1/2] x86: Track minimum microcode revision globally

On Tue, Jun 12, 2012 at 01:52:14PM -0700, H. Peter Anvin wrote:
> Different CPUs in a multisocket system may have different compatible
> ucode versions.

Ah, so you need the different ucode for the different steppings of the
cpus on the board, right? Assuming ucode versions are incremented per
F:M:S tuple, of course, then you can have different compatible microcode
versions.

> Of course, I am not even sure if it makes any sense at all to compare
> microcode versions without qualifying them with F:M:S.

Yep.

-- 
Regards/Gruss,
    Boris.
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