From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony Liguori Subject: Re: [Qemu-devel] Re: [PATCH] qemu/virtio: move features to an inline function Date: Wed, 12 Aug 2009 14:18:20 -0500 Message-ID: <4A83157C.9040009@codemonkey.ws> 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> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20090811162537.GA25705@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: "Michael S. Tsirkin" Cc: qemu-devel@nongnu.org, virtualization@lists.linux-foundation.org List-Id: virtualization@lists.linuxfoundation.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 >> >>