Message-ID: <459EDDD1.6060208@goop.org>
Date: Fri, 05 Jan 2007 15:22:57 -0800
From: Jeremy Fitzhardinge <jeremy@goop.org>
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To: Rene Herman <rene.herman@gmail.com>
CC: Zachary Amsden <zach@vmware.com>, Rusty Russell <rusty@rustcorp.com.au>,
       Andrew Morton <akpm@osdl.org>,
       Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] romsignature/checksum cleanup
References: <458EEDF7.4000200@gmail.com>  <458F20FB.7040900@gmail.com> <1167179512.16175.4.camel@localhost.localdomain> <459310A3.4060706@vmware.com> <459ABA2F.6070907@gmail.com>
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Rene Herman wrote:
> Jeremy? Is it okay to only check the signature word? The checksum will
> generally be done over more than 1 (hw) page... That "presumably"
> there seems a bit flaky? 

Well, in the Xen case, where the pages are simply not mapped, then the
signature simply won't exist.  In other cases, I guess its possible the
signature might exist but the rest of the ROM doesn't, but that won't
happen on normal hardware.

    J

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