linux-kernel - Re: [PATCH 1/3] perf, core: Introduce attrs to count in either host or guest mode

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Message-ID: <1305121745.2914.216.camel@laptop>
Date:	Wed, 11 May 2011 15:49:05 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Avi Kivity <avi@...hat.com>
Cc:	Joerg Roedel <joerg.roedel@....com>,
	Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH 1/3] perf, core: Introduce attrs to count in either
 host or guest mode

On Wed, 2011-05-11 at 14:45 +0300, Avi Kivity wrote:
> Well, actually, that depends on the meaning of exclude_hv.

exclude_hv is for when the host is a guest and we don't wish to sample
the host's host etc. PPC introduced this because ppc-linux runs as a
guest of the 'firmware' and not on the native hardware.

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