From mboxrd@z Thu Jan 1 00:00:00 1970 From: mk.xen-devel@simplecheck.net Subject: DomU-Dom0 communication question Date: Wed, 02 May 2007 10:26:31 -0400 Message-ID: <4591123.662921178115991050.JavaMail.servlet@perfora> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Hi all, I need to create a custom communication channel between DomU and Dom0 in order to send arbitrary messages/buffers between applications in Dom0 and DomU. Basically, I am thinking about making a char control driver on both sides that would transport those messages to subscribers on either end using defined IOCL calls. I am looking at backend/frontend drivers and I don't think it would work for what I want to do as fron/back ends don't have any devices associated with it. Would it be better to utilize event channel directly or write frontend/backend drivers and control drivers on both ends? Or maybe there is another mechanism that already exists in xen environment and I am just trying to do things the hard way? Any advise is greatly appreciated. Thanks. Max