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 16:28:06 +0100 Message-ID: <45C35886.4030002@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 11:53, "Timo Benk" wrote: > >> If i start the Domain with the frontend-Device-Driver, i get the following >> log message inside the domain hosting the backend-device-driver: > > Ability to map other guests' memory via grant tables is restricted to > domains that have some privilege to access I/o memory. This is because of > some unmap races in current grant-table code, allowing mapping domain to > theoretically use a stale mapping in its TLB for a very short time after > unmapping the foreign page. > > 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? For the PCI-Device: I do not have a PCI device. I want a whole virtual, direct connection between two Domain-Us. That worked at least in 3.0.2 for me, without setting any permissions. --------- --------- | xendom1 | | xendom2 | | eth0----|--|--vif3.0 | --------- --------- Greetings, -timo -- Timo Benk - Jabber ID: fry@downtempo.de - ICQ ID: #414944731 PGP Public Key: http://m28s01.vlinux.de/timo_benk_gpg_key.asc