[RFC PATCH 0/4] Add device-tree support to kexec-tools for ARM
horms at verge.net.au
Wed Sep 5 08:38:50 EDT 2012
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.
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.
More information about the kexec