From: Simon Horman <horms@verge.net.au>
To: Matthew Leach <matthew.leach@arm.com>
Cc: will.deacon@arm.com, kexec@lists.infradead.org
Subject: Re: [RFC PATCH 0/4] Add device-tree support to kexec-tools for ARM
Date: Wed, 5 Sep 2012 21:38:50 +0900 [thread overview]
Message-ID: <20120905123850.GA11453@verge.net.au> (raw)
In-Reply-To: <1346845443-32242-1-git-send-email-matthew.leach@arm.com>
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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next prev parent reply other threads:[~2012-09-05 12:39 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-05 11:43 [RFC PATCH 0/4] Add device-tree support to kexec-tools for ARM Matthew Leach
2012-09-05 11:44 ` [RFC PATCH 1/4] Fix an overflow bug with address comparison Matthew Leach
2012-09-05 11:44 ` [RFC PATCH 2/4] Move libfdt to a generic location Matthew Leach
2012-09-05 11:44 ` [RFC PATCH 3/4] Add the dtc for device-tree manipulation Matthew Leach
2012-09-05 11:44 ` [RFC PATCH 4/4] Add device tree support to the ARM platform Matthew Leach
2012-09-05 12:38 ` Simon Horman [this message]
2012-09-05 14:34 ` [RFC PATCH 0/4] Add device-tree support to kexec-tools for ARM Matthew Leach
2012-09-06 3:29 ` Simon Horman
2012-09-06 9:01 ` Will Deacon
2012-09-06 9:09 ` Simon Horman
2012-09-06 9:14 ` Will Deacon
2012-09-06 22:03 ` Simon Horman
2012-09-06 11:04 ` Matthew Leach
2012-09-06 11:19 ` Will Deacon
2012-09-06 22:00 ` Simon Horman
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