linux-kernel - Re: [tip:x86/cpu] x86, cpu: AMD errata checking framework

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Message-ID: <4C35EA07.9020409@zytor.com>
Date:	Thu, 08 Jul 2010 08:08:55 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Hans Rosenfeld <hans.rosenfeld@....com>
CC:	"mingo@...hat.com" <mingo@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"linux-tip-commits@...r.kernel.org" 
	<linux-tip-commits@...r.kernel.org>
Subject: Re: [tip:x86/cpu] x86, cpu: AMD errata checking framework

On 07/08/2010 07:18 AM, Hans Rosenfeld wrote:
> 
> Thats exactly the kind of thing I wanted to avoid. This means carrying
> around all errata definitions in memory all the time instead of just
> when theres actually code thats using them.
> 

On a note on that... by passing the definition as arguments you're doing
it asas *code*, which is seriously bloated over a memory structure.  The
size of memory structures should be insignificant, and would be cold in
memory anyway.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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