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

From: Ingo Molnar
Date: Tue Feb 19 2013 - 10:47:30 EST



* Borislav Petkov <bp@xxxxxxxxx> 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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