From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: perf uncore & lkvm woes Date: Fri, 17 Aug 2012 08:56:14 +0200 Message-ID: <1345186574.29668.56.camel@twins> References: <1345101585.31459.112.camel@twins> <502CA368.8050404@linux.intel.com> <502CB1F6.4010204@redhat.com> <502CD444.5020807@redhat.com> <1345115846.29668.16.camel@twins> <502CD891.5030102@redhat.com> <502DA115.1090907@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Cc: Avi Kivity , Pekka Enberg , Sasha Levin , Asias He , Cyrill Gorcunov , Ingo Molnar , KVM General , Gleb Natapov To: "Yan, Zheng" Return-path: Received: from casper.infradead.org ([85.118.1.10]:40030 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754539Ab2HQG42 convert rfc822-to-8bit (ORCPT ); Fri, 17 Aug 2012 02:56:28 -0400 In-Reply-To: <502DA115.1090907@linux.intel.com> Sender: kvm-owner@vger.kernel.org List-ID: On Fri, 2012-08-17 at 09:40 +0800, Yan, Zheng wrote: > > Peter, do I need to submit a patch disables uncore on virtualized CPU? > I think Avi prefers the method where KVM 'fakes' the MSRs and we have to detect if the MSRs actually work or not. If you're willing to have a go at that, please do so. If you're not sure how to do the KVM part, I'm sure Avi and/or Gleb can help you out.