On Tue, May 10, 2011 at 10:48:20AM -0400, Peter Zijlstra wrote: > On Tue, 2011-05-10 at 16:35 +0200, Joerg Roedel wrote: > > The AMD perf-counters support counting in guest or host-mode > > only. Make use of that feature when user-space specified > > guest/host-mode only counting. > > Subject mentions x86, does Intel have anything similar so you can make > it work for them too? Intel does not support guest or host-only counting in the hardware (at least according to my documentation). If wanted it could be approximated by enabling/disabling the counters in the guest-entry path. So subject should better say "perf, amd", right? > Also, might be nice to ask the power and sparc64 people if their archs > can also differentiate between guest and host thingies. Right, I don't know if their hardware has similar features. I'll try to find this out. Joerg -- 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
