From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anthony Liguori <anthony@codemonkey.ws>
Subject: Re: [RFC] Unify KVM kernel-space and user-space code into a single
 project
Date: Mon, 22 Mar 2010 14:29:03 -0500
Message-ID: <4BA7C4FF.3080407@codemonkey.ws>
References: <20100322124428.GA12475@elte.hu> <4BA76810.4040609@redhat.com> <20100322143212.GE14201@elte.hu> <4BA7821C.7090900@codemonkey.ws> <20100322155505.GA18796@elte.hu> <4BA796DF.7090005@redhat.com> <20100322165107.GD18796@elte.hu> <4BA7A406.9050203@redhat.com> <20100322173400.GB15795@elte.hu> <4BA7B87A.8060104@codemonkey.ws> <20100322192259.GD21919@elte.hu>
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Cc: Avi Kivity <avi@redhat.com>, Pekka Enberg <penberg@cs.helsinki.fi>,
	"Zhang, Yanmin" <yanmin_zhang@linux.intel.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Sheng Yang <sheng@linux.intel.com>,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
	Marcelo Tosatti <mtosatti@redhat.com>,
	oerg Roedel <joro@8bytes.org>,
	Jes Sorensen <Jes.Sorensen@redhat.com>,
	Gleb Natapov <gleb@redhat.com>,
	Zachary Amsden <zamsden@redhat.com>, ziteng.huang@intel.com,
	Arnaldo Carvalho de Melo <acme@redhat.com>,
	Fr?d?ric Weisbecker <fweisbec@gmail.com>,
	Gregory Haskins <ghaskins@novell.com>
To: Ingo Molnar <mingo@elte.hu>
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <20100322192259.GD21919@elte.hu>
Sender: linux-kernel-owner@vger.kernel.org
List-Id: kvm.vger.kernel.org

On 03/22/2010 02:22 PM, Ingo Molnar wrote:
>> Transitive had a product that was using a KVM context to run their
>> binary translator which allowed them full access to the host
>> processes virtual address space range.  In this case, there is no
>> kernel and there are no devices.
>>      
> And your point is that such vcpus should be excluded from profiling just
> because they fall outside the Qemu/libvirt umbrella?
>    

You don't instrument it the way you'd instrument an operating system so 
no, you don't want it to show up in perf kvm top.

Regards,

Anthony Liguori

> 	Ingo
>