On Wed, 2011-05-18 at 14:37 +0300, Avi Kivity wrote: > On 05/18/2011 02:32 PM, Peter Zijlstra wrote: > > On Wed, 2011-05-18 at 13:07 +0200, Ingo Molnar wrote: > > > > > > It does through raw events - which are indeed model specific. > > > > Which is exactly what is needed anyway, he gets a raw msr value. > > > > The only thing that is not exposed is the ANY bit, but since KVM doesn't > > expose HT anyway that doesn't matter. > > If I were to use raw events, I'd need to program AMD and Intel hosts > separately. As it is, I just use the generic counters and the perf > backend does its thing. But why exactly, from what I understood you emulate an actual hardware PMU, that means the guest will be writing proper content to the relevant MSRs, you can feed that directly into the raw config field (with exception of the USR/OS/INT bits). I'm fairly sure that emulating the intel arch bits on an cpu that otherwise identifies itself as AMD is going to confuse things. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
