On Wed, 2011-06-29 at 10:52 +0300, Avi Kivity wrote: > On 06/13/2011 04:34 PM, Avi Kivity wrote: > > This patchset exposes an emulated version 1 architectural performance > > monitoring unit to KVM guests. The PMU is emulated using perf_events, > > so the host kernel can multiplex host-wide, host-user, and the > > guest on available resources. > > > > Caveats: > > - counters that have PMI (interrupt) enabled stop counting after the > > interrupt is signalled. This is because we need one-shot samples > > that keep counting, which perf doesn't support yet > > - some combinations of INV and CMASK are not supported > > - counters keep on counting in the host as well as the guest > > > > perf maintainers: please consider the first three patches for merging (the > > first two make sense even without the rest). If you're familiar with the Intel > > PMU, please review patch 5 as well - it effectively undoes all your work > > of abstracting the PMU into perf_events by unabstracting perf_events into what > > is hoped is a very similar PMU. > > > > v2: > > - don't pass perf_event handler context to the callback; extract it via the > > 'event' parameter instead > > - RDPMC emulation and interception > > - CR4.PCE emulation > > Peter, can you look at 1-3 please? Queued them, thanks! I was more or less waiting for a next iteration of the series because of those problems reported, but those three stand well on their own. -- 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
