From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerd Hoffmann Subject: Re: Xenner design and kvm msr handling Date: Wed, 22 Apr 2009 12:02:51 +0200 Message-ID: <49EEEB4B.80306@redhat.com> References: <1239155601.6384.3.camel@yhuang-dev.sh.intel.com> <49DE195D.1020303@redhat.com> <1239332455.6384.108.camel@yhuang-dev.sh.intel.com> <49E08762.1010206@redhat.com> <1239590499.6384.4016.camel@yhuang-dev.sh.intel.com> <49E337D7.5050502@redhat.com> <49EA515C.9000507@codemonkey.ws> <49EAE1F6.9050205@redhat.com> <49EC29D1.8040407@redhat.com> <49EC3198.9070902@redhat.com> <49EC3987.2040001@redhat.com> <49EC3AD6.3090905@redhat.com> <49EC5B2A.9080403@redhat.com> <49EC5C3A.6020108@redhat.com> <49EC68A7.8080403@redhat.com> <49EC6DEE.4070703@redhat.com> <49EC7797.7060004@redhat.com> <49EC7C5F.2000006@redhat.com> <49ED8E6D.80005@redhat.com> <49ED9C70.5010906@redhat.com> <49EDB0E0.5060101@redhat.com> <49EDBBBF.90509@redhat.com> <49EDC050.1040700@redhat.com> <49EDCB1D.1010301@redhat.com> < 49EDEDAD.20900@redhat.com> <49EDF131.9060705@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Anthony Liguori , Huang Ying , "kvm@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Andi Kleen To: Avi Kivity Return-path: Received: from mx2.redhat.com ([66.187.237.31]:48796 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752683AbZDVKDL (ORCPT ); Wed, 22 Apr 2009 06:03:11 -0400 In-Reply-To: <49EDF131.9060705@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 04/21/09 18:15, Avi Kivity wrote: > Maybe migration is cooperative, It is. It has to be, for the xen pv frontend drivers migration isn't transparent. > that is the host tells the guest it is > migrated, so it can re-register the hypercall area? Yes, the guest re-does the wrmsr after migration. cheers, Gerd