linux-kernel - Re: [PATCH v2 0/8] CR4 handling improvements

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Message-ID: <CALCETrWR1UeBcPeqpPPOLgveeR_vbBBajuG+odFPMTn94ZTE8Q@mail.gmail.com>
Date:	Fri, 31 Oct 2014 10:09:35 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Peter Zijlstra <peterz@...radead.org>,
	kvm list <kvm@...r.kernel.org>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Gleb Natapov <gleb@...hat.com>
Cc:	Valdis Kletnieks <Valdis.Kletnieks@...edu>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Kees Cook <keescook@...omium.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Vince Weaver <vince@...ter.net>,
	"hillf.zj" <hillf.zj@...baba-inc.com>, X86 ML <x86@...nel.org>
Subject: Re: [PATCH v2 0/8] CR4 handling improvements

On Fri, Oct 31, 2014 at 8:09 AM, Peter Zijlstra <peterz@...radead.org> wrote:
>
>
> This looks ok I suppose, although the x86 people should pass verdict on
> the first few patches.

Adding some KVM people, too.  Patches 2 and 3 affect KVM, and that
code has been buggy in the recent past.  They should mostly fix the
performance regression that the fix for CVE-2014-3690 caused.

For reference, the series is here:

http://thread.gmane.org/gmane.linux.kernel/1813271/focus=1818661

Patch 1 has already been applied.

--Andy

-- 
Andy Lutomirski
AMA Capital Management, LLC
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