From: Ingo Molnar <mingo@elte.hu>
To: Fenghua Yu <fenghua.yu@intel.com>, Avi Kivity <avi@redhat.com>,
Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Thomas Gleixner <tglx@linutronix.de>,
H Peter Anvin <hpa@zytor.com>,
Asit K Mallick <asit.k.mallick@intel.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Avi Kivity <avi@redhat.com>,
Arjan van de Ven <arjan@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <andi@firstfloor.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 0/4] Enable SMEP CPU Feature
Date: Tue, 17 May 2011 09:03:08 +0200 [thread overview]
Message-ID: <20110517070308.GC22305@elte.hu> (raw)
In-Reply-To: <1305581685-5144-1-git-send-email-fenghua.yu@intel.com>
* Fenghua Yu <fenghua.yu@intel.com> wrote:
> From: Fenghua Yu <fenghua.yu@intel.com>
>
> Intel new CPU supports SMEP (Supervisor Mode Execution Protection). SMEP
> prevents kernel from executing code in application. Updated Intel SDM describes
> this CPU feature. The document will be published soon.
>
> Note: This patch set doesn't enable the SMEP feature in KVM. If it's needed,
> another patch will be pushed for enabling the feature in KVM.
We can do it separately from native kernel support, but i'm sure Avi would
agree that SMEP support in KVM would be nice! (as long as it's configurable as
well, there might be guest OSs that break if SMEP is enabled, right?)
Thanks,
Ingo
next prev parent reply other threads:[~2011-05-17 7:03 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-16 21:34 [PATCH v2 0/4] Enable SMEP CPU Feature Fenghua Yu
2011-05-16 21:34 ` [PATCH v2 1/4] x86, cpu: Add CPU flags for SMEP Fenghua Yu
2011-05-17 1:56 ` H. Peter Anvin
2011-05-16 21:34 ` [PATCH v2 2/4] x86, cpu: Add SMEP CPU feature in CR4 Fenghua Yu
2011-05-16 21:34 ` [PATCH v2 3/4] x86, head_32/64.S: Enable SMEP Fenghua Yu
2011-05-17 2:10 ` Matthew Garrett
2011-05-17 23:08 ` Yu, Fenghua
2011-05-17 23:12 ` H. Peter Anvin
2011-05-18 2:57 ` Yu, Fenghua
2011-05-16 21:34 ` [PATCH v2 4/4] x86/kernel/common.c: Disable SMEP by kernel option nosmep Fenghua Yu
2011-05-16 22:01 ` Thomas Gleixner
2011-05-16 21:52 ` [PATCH v2 0/4] Enable SMEP CPU Feature H. Peter Anvin
2011-05-17 7:05 ` Ingo Molnar
2011-05-17 9:15 ` Avi Kivity
2011-05-17 9:29 ` Ingo Molnar
2011-05-17 9:32 ` Avi Kivity
2011-05-17 10:46 ` Ingo Molnar
2011-05-17 11:34 ` Avi Kivity
2011-05-17 11:38 ` Ingo Molnar
2011-05-17 11:44 ` Avi Kivity
2011-05-17 11:47 ` Avi Kivity
2011-05-17 11:49 ` Pekka Enberg
2011-05-17 11:50 ` Ingo Molnar
2011-05-19 6:10 ` Tian, Kevin
2011-05-19 6:41 ` Shan, Haitao
2011-05-20 8:21 ` Ingo Molnar
2011-05-17 7:03 ` Ingo Molnar [this message]
2011-05-17 9:16 ` Avi Kivity
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