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From: Segher Boessenkool <segher@kernel.crashing.org>
Subject: Re: [patch 29/30] PS3: Device tree source.
Date: Wed, 13 Jun 2007 15:52:50 +0200
To: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: linuxppc-dev@ozlabs.org, Olaf Hering <olaf@aepfle.de>, paulus@samba.org
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>> The device tree is not a userspace ABI.  Since
>> in this case it is built into the kernel image
>> (is it, actually?) there is no breakage between
>> firmware and kernel versions, either.
>
> It is built-in for the kboot kernel.
> It is passed from the bootstrap to the 2nd stage kernel.

The 2nd stage kernel isn't userland.


Segher