From: Fabien Chouteau <chouteau@adacore.com>
To: Scott Wood <scottwood@freescale.com>
Cc: Alexander Graf <agraf@suse.de>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] Add e500 instructions dcblc, dcbtls and dcbtstl as no-op
Date: Fri, 01 Jul 2011 18:21:38 +0200 [thread overview]
Message-ID: <4E0DF412.5000802@adacore.com> (raw)
In-Reply-To: <20110701110038.05eeb4da@schlenkerla.am.freescale.net>
On 01/07/2011 18:00, Scott Wood wrote:
> 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.
It was mainly to test the correctness of emulation, but it appears that I have
to implement more devices (eSPI, I2C, LBC...) than I initially thought.
--
Fabien Chouteau
prev parent reply other threads:[~2011-07-01 16:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-27 13:15 [Qemu-devel] [PATCH] Add e500 instructions dcblc, dcbtls and dcbtstl as no-op Fabien Chouteau
2011-06-27 16:28 ` Scott Wood
2011-06-28 8:17 ` Fabien Chouteau
2011-06-28 16:20 ` Scott Wood
2011-06-30 8:25 ` Fabien Chouteau
2011-06-30 16:17 ` Scott Wood
2011-06-30 21:34 ` Alexander Graf
2011-06-30 21:46 ` Scott Wood
2011-06-30 21:56 ` Alexander Graf
2011-06-30 22:11 ` Scott Wood
2011-06-30 22:18 ` Alexander Graf
2011-06-30 22:23 ` Scott Wood
2011-06-30 22:28 ` Alexander Graf
2011-06-30 22:32 ` Scott Wood
2011-06-30 22:38 ` Alexander Graf
2011-07-01 14:59 ` Fabien Chouteau
2011-07-01 15:05 ` Alexander Graf
2011-07-01 15:39 ` Fabien Chouteau
2011-07-01 16:00 ` Scott Wood
2011-07-01 16:21 ` Fabien Chouteau [this message]
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