linux-kernel - Re: [PATCH 08/11] perf tool: precise mode requires exclude

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Message-ID: <20120726090745.GM3732@erda.amd.com>
Date:	Thu, 26 Jul 2012 11:07:45 +0200
From:	Robert Richter <robert.richter@....com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Gleb Natapov <gleb@...hat.com>, David Ahern <dsahern@...il.com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	<linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...nel.org>,
	Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH 08/11] perf tool: precise mode requires exclude_guest

On 26.07.12 10:07:37, Peter Zijlstra wrote:
> On Thu, 2012-07-26 at 08:50 +0300, Gleb Natapov wrote:
> > The commit is 144d31e6, but it introduces hook that is used on VMX only.
> > SVM does not need it to implement guest/host only counters since it
> > has HW support for that in the PMU.
> 
> Right, seems that has changed now that we support IBS.

Will look at this.

-Robert


-- 
Advanced Micro Devices, Inc.
Operating System Research Center

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