From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel De Graaf Subject: Re: [PATCH] Add grant references for fbfront/kbdfront Date: Fri, 07 Jan 2011 14:36:04 -0500 Message-ID: <4D276B24.4070902@tycho.nsa.gov> References: <1294416779-13833-1-git-send-email-dgdegra@tycho.nsa.gov> <20110107165130.GC23825@dumpdata.com> <4D27538C.2070600@tycho.nsa.gov> <1294424937.12280.0.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1294424937.12280.0.camel@localhost.localdomain> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Ian Campbell Cc: "xen-devel@lists.xensource.com" , Konrad Rzeszutek Wilk List-Id: xen-devel@lists.xenproject.org On 01/07/2011 01:28 PM, Ian Campbell wrote: > On Fri, 2011-01-07 at 17:55 +0000, Daniel De Graaf wrote: >> On 01/07/2011 11:51 AM, Konrad Rzeszutek Wilk wrote: >>> On Fri, Jan 07, 2011 at 11:12:56AM -0500, dgdegra@tycho.nsa.gov wrote: >>>> This series fixes the interface for the fbfront and kbdfront devices, >>>> which were storing MFNs in xenstore rather than creating grant table >>>> entries. To maintain backwards compatibility, a different xenstore key >>>> is used (page-gref instead of page-ref) and the use of grants must be >>>> requested for fbfront (because two levels of page references are >>>> embedded within the shared page). This makes it possible to move a >>>> display server out of dom0 without giving the display domain full >>>> access to other domain's memory. >>> >>> So these patches go on top of xen/stable-2.6.32 tree right? >>> >> >> They apply to either 2.6.32 or 2.6.37; I have tested them on both. > > Are there matching backend patches somewhere? > > Ian. > Not yet, although it shouldn't be hard to modify the Xen backend to use grants. This has been tested using a custom display server. >>>> >>>> [PATCH 1/3] xen-fbfront: Read width/height from backend >>>> Note: Not directly related, just used by display server. >>>> [PATCH 2/3] xen-fbfront: Use grant references when requested >>>> [PATCH 3/3] xen-kbdfront: Add grant reference for shared page >>>> >>>> _______________________________________________ >>>> Xen-devel mailing list >>>> Xen-devel@lists.xensource.com >>>> http://lists.xensource.com/xen-devel >>> >>