From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir.fraser@eu.citrix.com>
Subject: Re: question on iommu _map_page
Date: Fri, 28 May 2010 09:08:52 +0100
Message-ID: <C82538A4.161DB%keir.fraser@eu.citrix.com>
References: <00AC9A5E-6B21-4E21-A10F-B38A3CA00A66@rice.edu>
Mime-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xensource.com>
In-Reply-To: <00AC9A5E-6B21-4E21-A10F-B38A3CA00A66@rice.edu>
List-Unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: Kaushik Kumar Ram <kaushik@rice.edu>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
List-Id: xen-devel@lists.xenproject.org

On 27/05/2010 21:59, "Kaushik Kumar Ram" <kaushik@rice.edu> wrote:

> On May 27, 2010, at 3:46 PM, Keir Fraser wrote:
> 
>> It looks like the person who implemented that never needed the read-only
>> case. We need a function to map pages into the iommu read-only and to call
>> that from the grant code.
>> 
>> A patch to just call iommu_map_page() for any kind of grant mapping would be
>> acceptable for now, if you want to submit a patch.
> 
> OK. Attached.

Actually I've implemented the better fix as xen-unstable:21476. Hope that
works okay for you.

 Thanks,
 Keir