From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1INazW-0006zG-PG for qemu-devel@nongnu.org; Tue, 21 Aug 2007 17:10:22 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1INazV-0006z4-DF for qemu-devel@nongnu.org; Tue, 21 Aug 2007 17:10:21 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1INazV-0006z1-6U for qemu-devel@nongnu.org; Tue, 21 Aug 2007 17:10:21 -0400 Received: from el-out-1112.google.com ([209.85.162.177]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1INazV-0007hU-1S for qemu-devel@nongnu.org; Tue, 21 Aug 2007 17:10:21 -0400 Received: by el-out-1112.google.com with SMTP id y26so690322ele for ; Tue, 21 Aug 2007 14:10:20 -0700 (PDT) Subject: Re: [Qemu-devel] [PATCH] Share Vmware communication port between devices From: Anthony Liguori In-Reply-To: <20070821201522.27E585A236@smtp3-g19.free.fr> References: <20070821201522.27E585A236@smtp3-g19.free.fr> Content-Type: text/plain; charset=utf-8 Date: Tue, 21 Aug 2007 16:10:16 -0500 Message-Id: <1187730616.10060.2.camel@squirrel> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On Tue, 2007-08-21 at 22:10 +0200, Hervé Poussineau wrote: > Hi, > > Some more information about the VMware backdoor can be found at: > http://chitchat.at.infoseek.co.jp/vmware/backdoor.html Are there interesting apps that make use of this? I really don't like the idea of supporting this PV protocol if we're not going to get interesting apps out of it. The project you referenced earlier didn't have source code available (you had to request it privately) and I don't think it's being generally used. The problem with this particular protocol is that it's inherently x86-specific b/c it depends on doing PIO in userspace. If we're just looking to get this functionality, it would be better to do it as a PCI device or something that could actually work on non-x86 architectures. In my mind, vmmouse was worth implementing since the driver already exists and was packaged in a number of distros. Regards, Anthony Liguori > Hervé > > >