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Date: Wed, 5 Sep 2012 21:38:50 +0900
From: Simon Horman <horms@verge.net.au>
Subject: Re: [RFC PATCH 0/4]  Add device-tree support to kexec-tools for ARM
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To: Matthew Leach <matthew.leach@arm.com>
Cc: will.deacon@arm.com, kexec@lists.infradead.org

On Wed, Sep 05, 2012 at 12:43:59PM +0100, Matthew Leach wrote:
> Hi all,
> 
> Running a kexec() on newer ARM platforms has become an issue as
> information about the platform that is presented via device-tree is
> required to boot a new kernel.
> 
> The ATAGs kernel code is re-used, replacing the ATAGs with a
> device-tree blob so that only kexec-tools needs to be changed. There
> are two options for generating a dtb to be passed to the kernel from
> kexec-tools: 1) Read in the device-tree that is exposed in
> /proc/device-tree and flatten this out into a dtb.  2) Allow the user
> to specify a dtb file on the command line.  These blobs are then
> loaded into memory before the kernel image and the address passed
> through to r2, as stated in the ARM booting documentation.

Hi Matt,

are you aware that I posted patches to add ARM DT support
to kexec-tools a few weeks ago?

I'm not particularly concerned which version goes in,
but perhaps we can learn from each others efforts.

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