linux-kernel - Re: [GIT PULL] x86/cpu changes for v3.9

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Message-ID: <20130219154721.GA15876@gmail.com>
Date:	Tue, 19 Feb 2013 16:47:21 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Borislav Petkov <bp@...en8.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] x86/cpu changes for v3.9


* Borislav Petkov <bp@...en8.de> wrote:

> On Tue, Feb 19, 2013 at 04:25:03PM +0100, Ingo Molnar wrote:
> > Linus,
> > 
> > Please pull the latest x86-cpu-for-linus git tree from:
> > 
> >    git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-cpu-for-linus
> > 
> >    HEAD: f0322bd341fd63261527bf84afd3272bcc2e8dd3 x86, AMD: Enable WC+ memory type on family 10 processors
> > 
> > The biggest change is the enabling of the WC+ memory type on 
> > family 10 processors. (This is a BIOS bug workaround in essence: 
> > if the BIOS fails to do this then we fall back to uncacheable, 
> > degrading performance, for example for virtualized guests using 
> > nested pages.)
> > 
> >  Thanks,
> > 
> > 	Ingo
> > 
> > ------------------>
> > Boris Ostrovsky (2):
> >       x86, AMD: Clean up init_amd()
> >       x86, AMD: Enable WC+ memory type on family 10 processors
> 
> Those kill a kvm guest with a #GP. Can we apply the fix for it too pls?
> 
> http://marc.info/?l=linux-kernel&m=136077007423065&w=2

Linus, please skip this pull request, we'll sort it out.

Thanks,

	Ingo
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