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Date: Fri, 1 Jul 2011 11:00:38 -0500
From: Scott Wood <scottwood@freescale.com>
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Subject: Re: [Qemu-devel] [PATCH] Add e500 instructions dcblc,
 dcbtls and dcbtstl as no-op
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To: Fabien Chouteau <chouteau@adacore.com>
Cc: Alexander Graf <agraf@suse.de>, qemu-devel@nongnu.org

On Fri, 1 Jul 2011 17:39:49 +0200
Fabien Chouteau <chouteau@adacore.com> wrote:

> No, I just implemented these no-oped instructions to get rid of an illegal
> instruction exception while running u-boot on my emulated p2010.
> 

Heh, so someone *is* trying to run firmware. :-)

It would take a lot of low-level hardware simulation to get unmodified
U-Boot to run -- probably not worth it unless your goal is an environment
for debugging U-Boot.

It uses cache locking to create working space before the memory controller
is initialized, so it's really expecting those instructions to work.

-Scott