From mboxrd@z Thu Jan 1 00:00:00 1970 From: Timo Benk Subject: Re: Direct Ethernet Connection Bug (3.0.4-1) Date: Fri, 02 Feb 2007 16:50:25 +0100 Message-ID: <45C35DC1.7040707@gmx.de> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Keir Fraser Cc: Xen devel list List-Id: xen-devel@lists.xenproject.org Keir Fraser wrote: > On 2/2/07 15:28, "Timo Benk" wrote: > >>> So, this crash indicates that you have not given any I/O-memory access >>> privilege to the backend domain. Have you actually given it access to the >>> Ethernet PCI device and its I/O memory and I/O port resources? >> Hm, you are right, i have not given any domains any other privileges then >> the default setup. Can you give me a hint where i can configure that? > > Ah, but I see actually you don't want a physical device backing up this > network -- you just want point-to-point virtual network comms between the > two domUs? Yes. > The only way to grant any iomem to a domU in current tools is by assigning > access to a PCI device. > > What I can do is add a Xen boot parameter 'permissive_grant' to allow any > domU to map foreign pages via grant tables. This boot parameter can then be > removed when we fix the TLB-flushing races in the grant table code. That sounds good so far. > Are you running from xen-unstable, or a different codebase? xen-testing 3.0.4-1 Greetings, -timo -- Timo Benk - Jabber ID: fry@downtempo.de - ICQ ID: #414944731 PGP Public Key: http://m28s01.vlinux.de/timo_benk_gpg_key.asc