linux-kernel - Re: [PATCH 0/2] xen pvfb: Para-virtual framebuffer, keyboard and pointer

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Date:	Thu, 21 Feb 2008 14:33:05 -0800
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Markus Armbruster <armbru@...hat.com>
CC:	linux-kernel@...r.kernel.org, xen-devel@...ts.xensource.com,
	linux-fbdev-devel@...ts.sourceforge.net, dmitry.torokhov@...il.com,
	virtualization@...ts.osdl.org, linux-input@...r.kernel.org,
	adaplas@....net, akpm@...ux-foundation.org,
	jayakumar.lkml@...il.com
Subject: Re: [PATCH 0/2] xen pvfb: Para-virtual framebuffer,	keyboard and
 pointer

Markus Armbruster wrote:
> Here's the description again:
>
>     Frontends are expected to write their protocol ABI to xenstore.  Since
>     the protocol ABI defaults to the backend's native ABI, things work
>     fine without that as long as the frontend's native ABI is identical to
>     the backend's native ABI.  This is not the case for xen-blkfront
>     running 32-on-64, because its ABI differs between 32 and 64 bit, and
>     thus needs this fix.
>
> I can break the dependency by putting the same bug that is now in
> xen-blkfront into xen-fbfront and xen-kbdfront.
>   

Right, I see.  The dependency is on the protocols.h changes.

    J
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