From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: perf uncore & lkvm woes
Date: Tue, 21 Aug 2012 09:11:36 +0200
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Cc: "Yan, Zheng" <zheng.z.yan@linux.intel.com>,
	Pekka Enberg <penberg@kernel.org>,
	Sasha Levin <levinsasha928@gmail.com>,
	Asias He <asias.hejun@gmail.com>,
	Cyrill Gorcunov <gorcunov@gmail.com>,
	Ingo Molnar <mingo@elte.hu>, KVM General <kvm@vger.kernel.org>,
	Gleb Natapov <gleb@redhat.com>
To: Avi Kivity <avi@redhat.com>
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On Sun, 2012-08-19 at 12:55 +0300, Avi Kivity wrote:
> > I think Avi prefers the method where KVM 'fakes' the MSRs and we have to
> > detect if the MSRs actually work or not.
> 
> s/we have/we don't have/. 

So for the 'normal' PMU we actually do check to see if the MSRs are
being faked and bail if they are.