On Mon, Nov 07, 2011 at 05:01:11PM +0100, Peter Zijlstra wrote: > On Mon, 2011-11-07 at 17:53 +0200, Gleb Natapov wrote: > > I removed branch-miss-retired here because for perf user it exists. Perf > > approximates it by other event but perf user shouldn't know that. A > > guest is not always runs with exactly same cpu model number as a host, > > so if we will not drop the bit here if guest will see cpu model other > > than the one that has this quirk it will not be able to use the event. > > Right, so what model number do you expose? Anyway I don't really mind Depends on what management wants. You can specify -cpu Nehalem or -cpu Conroe or even override model manually by doing -cpu host,model=15. > masking the thing as long as we grow an ebx iteration, > > > BTW why perf does not check event mask to see if architectural event is > > available before programming it? > > No idea why not.. just one of those things nobody noticed/got around to > doing or so. -- Gleb. -- 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
