From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ingo Molnar <mingo@elte.hu>
Subject: Re: KVM PMU virtualization
Date: Fri, 26 Feb 2010 14:18:41 +0100
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Cc: Jes Sorensen <Jes.Sorensen@redhat.com>,
	Joerg Roedel <joro@8bytes.org>,
	KVM General <kvm@vger.kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Zachary Amsden <zamsden@redhat.com>,
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	"Zhang, Yanmin" <yanmin_zhang@linux.intel.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Arjan van de Ven <arjan@infradead.org>,
	Fr??d??ric Weisbecker <fweisbec@gmail.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
To: Avi Kivity <avi@redhat.com>
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* Avi Kivity <avi@redhat.com> wrote:

> Can you emulate the Core 2 pmu on, say, a P4? [...]

How about the Pentium? Or the i486?

As long as there's perf events support, the CPU can be supported in a soft 
PMU. You can even cross-map exotic hw events if need to be - but most of the 
tooling (in just about any OS) uses just a handful of core events ...

	Ingo