From: Peter Zijlstra <peterz@infradead.org>
To: Avi Kivity <avi@redhat.com>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>,
"Zhang, Yanmin" <yanmin_zhang@linux.intel.com>,
LKML <linux-kernel@vger.kernel.org>,
kvm@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
Fr??d??ric Weisbecker <fweisbec@gmail.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Cyrill Gorcunov <gorcunov@gmail.com>,
Lin Ming <ming.m.lin@intel.com>,
Sheng Yang <sheng@linux.intel.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
oerg Roedel <joro@8bytes.org>, Gleb Natapov <gleb@redhat.com>,
Zachary Amsden <zamsden@redhat.com>,
zhiteng.huang@intel.com, tim.c.chen@intel.com
Subject: Re: [PATCH V2 1/5] ara virt interface of perf to support kvm guest os statistics collection in guest os
Date: Tue, 22 Jun 2010 12:02:22 +0200 [thread overview]
Message-ID: <1277200942.1875.694.camel@laptop> (raw)
In-Reply-To: <4C20882C.80709@redhat.com>
On Tue, 2010-06-22 at 12:53 +0300, Avi Kivity wrote:
> > /me has no clue what virtual MSRs are,
>
> MSRs that are not defined by the hardware, but instead by the
> hypervisor.
>
Uhm, but the PMU MSRs are all defined by the hardware, if you move the
PMU MSRs around nothing will work.. *confusion*
> When emulating the hardware PMU we can be clever at times and allow
> RDPMC not to trap.
Sure, not disagreeing with that, still the generic case is to trap, so
lets first get that to work and then try and be smart :-)
next prev parent reply other threads:[~2010-06-22 10:02 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-21 9:31 [PATCH V2 1/5] ara virt interface of perf to support kvm guest os statistics collection in guest os Zhang, Yanmin
2010-06-21 11:45 ` Avi Kivity
2010-06-22 1:49 ` Zhang, Yanmin
2010-06-22 7:14 ` Jes Sorensen
2010-06-22 7:47 ` Zhang, Yanmin
2010-06-22 7:55 ` Peter Zijlstra
2010-06-22 8:00 ` Jes Sorensen
2010-06-22 9:29 ` Zhang, Yanmin
2010-06-22 9:31 ` Peter Zijlstra
2010-06-22 9:39 ` Jes Sorensen
2010-06-22 9:46 ` Peter Zijlstra
2010-06-22 9:53 ` Avi Kivity
2010-06-22 10:02 ` Peter Zijlstra [this message]
2010-06-22 10:06 ` Avi Kivity
2010-06-22 10:10 ` Peter Zijlstra
2010-06-22 11:01 ` Avi Kivity
2010-06-22 7:58 ` Jes Sorensen
2010-06-23 1:13 ` Zhang, Yanmin
2010-06-23 8:15 ` Jes Sorensen
2010-06-22 8:59 ` Avi Kivity
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