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Date: Wed, 24 Mar 2010 18:09:30 +0200
From: Avi Kivity <avi@redhat.com>
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To: Joerg Roedel <joro@8bytes.org>
CC: Anthony Liguori <anthony@codemonkey.ws>, Ingo Molnar <mingo@elte.hu>,
       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>,
       Jes Sorensen <Jes.Sorensen@redhat.com>, Gleb Natapov <gleb@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>
Subject: Re: [RFC] Unify KVM kernel-space and user-space code into a single
 project
References: <20100324115900.GB14800@8bytes.org> <4BAA00B1.20407@redhat.com> <20100324125043.GC14800@8bytes.org> <4BAA0DFE.1080700@redhat.com> <20100324134642.GD14800@8bytes.org> <4BAA1A53.20207@redhat.com> <20100324150137.GE14800@8bytes.org> <4BAA2BF7.4060407@redhat.com> <20100324154605.GG14800@8bytes.org> <4BAA3496.2010901@redhat.com> <20100324155927.GI14800@8bytes.org>
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On 03/24/2010 05:59 PM, Joerg Roedel wrote:
>
>    
>>> I am not tied to /sys/kvm. We could also use /proc/<pid>/kvm/ for
>>> example. This would keep anything in the process space (except for the
>>> global list of VMs which we should have anyway).
>>>
>>>        
>> How about ~/.qemu/guests/$pid?
>>      
> That makes it hard for perf to find it and even harder to get a list of
> all VMs.

Looks trivial to find a guest, less so with enumerating (still doable).

>   With /proc/<pid>/kvm/guest we could symlink all guest
> directories to /proc/kvm/ and perf reads the list from there. Also perf
> can easily derive the directory for a guest from its pid.
> Last but not least its kernel-created and thus independent from the
> userspace part being used.
>    

Doesn't perf already has a dependency on naming conventions for finding 
debug information?

-- 
error compiling committee.c: too many arguments to function