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Re: [Xen-devel] [PATCH] Add grant references for fbfront/kbdfront

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] Add grant references for fbfront/kbdfront
From: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
Date: Fri, 07 Jan 2011 12:55:24 -0500
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On 01/07/2011 11:51 AM, Konrad Rzeszutek Wilk wrote:
> On Fri, Jan 07, 2011 at 11:12:56AM -0500, dgdegra@xxxxxxxxxxxxx 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.

>> [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
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Daniel De Graaf
National Security Agency

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