From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Brook Subject: Re: [Qemu-devel] [PATCH 00/21] Kemari for KVM 0.2 Date: Mon, 29 Nov 2010 17:18:42 +0000 Message-ID: <201011291718.42500.paul@codesourcery.com> References: <1290665220-26478-1-git-send-email-tamura.yoshiaki@lab.ntt.co.jp> <201011291653.42595.paul@codesourcery.com> <4CF3DD61.2010102@codemonkey.ws> Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Cc: Anthony Liguori , ohmura.kei@lab.ntt.co.jp, mtosatti@redhat.com, stefanha@linux.vnet.ibm.com, kvm@vger.kernel.org, Stefan Hajnoczi , dlaor@redhat.com, Yoshiaki Tamura , ananth@in.ibm.com, Blue Swirl , aliguori@us.ibm.com, vatsa@linux.vnet.ibm.com, psuriset@linux.vnet.ibm.com, avi@redhat.com To: qemu-devel@nongnu.org Return-path: Received: from mail.codesourcery.com ([38.113.113.100]:49851 "EHLO mail.codesourcery.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753007Ab0K2RTC (ORCPT ); Mon, 29 Nov 2010 12:19:02 -0500 In-Reply-To: <4CF3DD61.2010102@codemonkey.ws> Sender: kvm-owner@vger.kernel.org List-ID: > On 11/29/2010 10:53 AM, Paul Brook wrote: > >>> Is this a fair summary: any device that supports live migration workw > >>> under Kemari? > >> > >> It might be fair summary but practically we barely have live migration > >> working w/o Kemari. In addition, last I checked Kemari needs additional > >> hooks and it will be too hard to keep that out of tree until all devices > >> get it. > > > > That's not what I've been hearing earlier in this thread. > > The responses from Yoshi indicate that Stefan's summary is correct. i.e. > > the current Kemari implementation may require per-device hooks, but > > that's a bug and should be fixed before merging. > > It's actually really important that Kemari make use of an intermediate > layer such that the hooks can distinguish between a device access and a > recursive access. I'm failing to understand how this is anything other than running sed over block/*.c (or hw/*.c, depending whether you choose to rename the internal or external API). Paul