linux-kernel - Re: [PATCH] x86/amd: fix crash as Xen Dom0 on AMD Trinity systems

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Message-ID: <4FC6363F.3040208@zytor.com>
Date:	Wed, 30 May 2012 08:01:19 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Borislav Petkov <bp@...en8.de>,
	Andre Przywara <andre.przywara@....com>, mingo@...e.hu,
	tglx@...utronix.de, konrad.wilk@...cle.com, jeremy@...p.org,
	linux-kernel@...r.kernel.org, xen-devel@...ts.xensource.com,
	stable@...r.kernel.org.#.3.4+
Subject: Re: [PATCH] x86/amd: fix crash as Xen Dom0 on AMD Trinity systems

On 05/30/2012 08:00 AM, Borislav Petkov wrote:
> On Wed, May 30, 2012 at 07:58:23AM -0700, H. Peter Anvin wrote:
>> If so, then fix the description to match reality and we can take the patch.
> 
> Andre, would you please do that?
> 

Ah, but now we get:

>> I'm not following: If the AMD variants (putting a special value into
>> %edi) can be freely replaced by the non-AMD variants, why did
>> the AMD special ones get used in the first place?

> Older CPUs (K8) needed the AMD variants, starting with family 10h we
> can use the normal versions.

So no, not correct.

	-hpa


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