From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: Re: [PATCH 3/3] Fix TSC MSR read in nested SVM Date: Wed, 10 Aug 2011 15:02:08 +0200 Message-ID: <20110810130207.GA8978@8bytes.org> References: <1312289591-nyh@il.ibm.com> <201108021255.p72CtNjD002153@rice.haifa.ibm.com> <20110803210052.GB31923@amt.cnet> <20110805153224.GB16953@amt.cnet> <20110807120402.GE30353@8bytes.org> <20110810123528.GB20241@fermat.math.technion.ac.il> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Marcelo Tosatti , Zachary Amsden , Joerg Roedel , kvm@vger.kernel.org, Bandan Das , avi@redhat.com To: Nadav Har'El Return-path: Received: from 8bytes.org ([88.198.83.132]:48471 "EHLO 8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752880Ab1HJNCJ (ORCPT ); Wed, 10 Aug 2011 09:02:09 -0400 Content-Disposition: inline In-Reply-To: <20110810123528.GB20241@fermat.math.technion.ac.il> Sender: kvm-owner@vger.kernel.org List-ID: On Wed, Aug 10, 2011 at 03:35:28PM +0300, Nadav Har'El wrote: > On Sun, Aug 07, 2011, Joerg Roedel wrote about "Re: [PATCH 3/3] Fix TSC MSR read in nested SVM": > > > Joerg, can you review and ack Nadav's SVM patch? TIA > > > > Tested-by: Joerg Roedel > > Acked-by: Joerg Roedel > > > > Reviewed and tested (didn't apply cleanly, but was easy to fix that up). > > Looks all good so far. > > Hi guys, I'm a bit confused how we want to proceed from here. > > The patches which I sent appear to fix the original bug (as confirmed by > the two people who reported it), but Zachary warned that it would break > migration of nested SVM while L2 is running. I asked whether migration > works at all while L2 is running (without exiting to L1 first) - and > Marcelo suggested that it doesn't. Migration doesn't work today when L2 is running, so don't worry about it for now. Regards, Joerg