From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MbJLB-0006cW-Ih for qemu-devel@nongnu.org; Wed, 12 Aug 2009 15:18:29 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MbJL6-0006Vi-P7 for qemu-devel@nongnu.org; Wed, 12 Aug 2009 15:18:29 -0400 Received: from [199.232.76.173] (port=51428 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MbJL6-0006Va-Gs for qemu-devel@nongnu.org; Wed, 12 Aug 2009 15:18:24 -0400 Received: from mail-yw0-f193.google.com ([209.85.211.193]:64666) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MbJL6-0007IN-8Y for qemu-devel@nongnu.org; Wed, 12 Aug 2009 15:18:24 -0400 Received: by ywh31 with SMTP id 31so340506ywh.4 for ; Wed, 12 Aug 2009 12:18:23 -0700 (PDT) Message-ID: <4A83157C.9040009@codemonkey.ws> Date: Wed, 12 Aug 2009 14:18:20 -0500 From: Anthony Liguori MIME-Version: 1.0 Subject: Re: [Qemu-devel] Re: [PATCH] qemu/virtio: move features to an inline function References: <20090810192809.GA16800@redhat.com> <4A8076F0.5050700@codemonkey.ws> <20090810194753.GA16803@redhat.com> <4A808437.8040307@codemonkey.ws> <20090810221940.GB17099@redhat.com> <4A80A0A1.2020905@codemonkey.ws> <20090811084807.GA3029@redhat.com> <4A816EEB.4070707@codemonkey.ws> <20090811134331.GA22661@redhat.com> <4A819780.4040002@codemonkey.ws> <20090811162537.GA25705@redhat.com> In-Reply-To: <20090811162537.GA25705@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Michael S. Tsirkin" Cc: rusty@rustcorp.com.au, qemu-devel@nongnu.org, virtualization@lists.linux-foundation.org Michael S. Tsirkin wrote: > On > >> Why bother switching to userspace for migration? Can't you just have >> get/set ioctls for the state? >> > > I have these. But live migration requires dirty page logging. > I do not want to implement it in kernel. > Is it really that difficult? I think it would be better to just do that. I wonder though if mmu notifiers can be used to make it transparent... Regards, Anthony Liguori >> Regards, >> >> Anthony Liguori >> >>