From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gleb Natapov <gleb@redhat.com>
Subject: Re: Questing regarding KVM Guest PMU
Date: Thu, 5 Apr 2012 17:41:51 +0300
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Cc: shashank rachamalla <shashank.rachamalla@gmail.com>,
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To: Avi Kivity <avi@redhat.com>
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On Thu, Apr 05, 2012 at 05:38:40PM +0300, Avi Kivity wrote:
> On 04/05/2012 04:57 PM, Gleb Natapov wrote:
> > > > 
> > > May be it used NMI based profiling. We should ask oprofile developers.
> > > As I said I am almost sure my inability to run it on a host is probably
> > > PEBKAC, although I ran the same script exactly on the host and the
> > > guest (the script is from the first email of this thread)
> > > 
> > After upgrading the kernel to latest git from whatever it was there the
> > same script works and counts CPU_CLK_UNHALT events.
> >
> 
> This is even while it violates the Intel guidelines?
> 
Yes, but who says the result is correct :) It seems that we handle
global ctrl msr wrong. That is counter can be enabled either in global
ctrl or in eventsel. Trying to confirm that.

--
			Gleb.