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

From: Borislav Petkov
Date: Tue Feb 19 2013 - 10:37:08 EST


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

--
Regards/Gruss,
Boris.

Sent from a fat crate under my desk. Formatting is fine.
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