From: Gleb Natapov <gleb@redhat.com>
Date: Thu, 9 Aug 2012 08:52:34 +0000 (+0300)
Subject: perf/x86: disable PEBS on a guest entry.
X-Git-Tag: v3.6-rc3~28^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26a4f3c08de49c1437a7b7f97693cf22d8c31656;p=pandora-kernel.git

perf/x86: disable PEBS on a guest entry.

If PMU counter has PEBS enabled it is not enough to disable counter
on a guest entry since PEBS memory write can overshoot guest entry
and corrupt guest memory. Disabling PEBS during guest entry solves
the problem.

Tested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20120809085234.GI3341@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

Reading git-diff-tree failed