From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mukesh Rathor Subject: Re: help: /dev/xen/gntdev Date: Tue, 16 Feb 2010 14:14:12 -0800 Message-ID: <20100216141412.2e9f4782@mantra.us.oracle.com> References: <20100211201128.53d058a4@mantra.us.oracle.com> <4B753293020000780002F379@vpn.id2.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4B753293020000780002F379@vpn.id2.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Jan Beulich Cc: "Xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org Forgot to mention, rebuilding dom0 with gntdev (CONFIG_XEN_GRANT_DEV) resolved the issue. Thanks Jan. Mukesh On Fri, 12 Feb 2010 09:50:59 +0000 "Jan Beulich" wrote: > Do you have the gntdev driver loaded (or built into your kernel)? > > Jan > > >>> Mukesh Rathor 12.02.10 05:11 >>> > Hi > > I'm trying to upgrade my environment from xen 3.4.0 to xen 4.0 via > rpm that fits in our product. I installed new tools and xen, and it > looks like I am missing a step. > > In 4.0 qemu DEVOPS_FLAG_NEED_GNTDEV was added to xen_console_ops. This > results in xc_gnttab_open() being called which calls > xc_find_device_number() to get device nums for /dev/xen/gntdev so it > can mknod. xc_find_device_number() is failing because there is no > entry in the the sysfs. > > So, can someone please advise how the entry is created in the sysfs? > The exact path it's looking: /sys/class/misc/gntdev/dev > > > thanks, > Mukesh > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel