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From: Tony Breeds <tony@bakeyournoodle•com>
To: Paul Mackerras <paulus@samba•org>, linuxppc-dev@ozlabs•org
Subject: Re: [PATCH 1/1] Change the default link address for pSeries zImage kernels.
Date: Mon, 23 Jun 2008 18:16:44 +1000	[thread overview]
Message-ID: <20080623081643.GI20457@bakeyournoodle.com> (raw)
In-Reply-To: <1a551391a3c4925271cc86cb2e957aaccb0b599c.1214208801.git.tony@bakeyournoodle.com>

On Mon, Jun 23, 2008 at 06:13:23PM +1000, Tony Breeds wrote:
> Currently we set the start of the .text section to be 4Mb for pSeries.
> In situations where the zImage is > 8Mb we'll fail to boot (due to
> overlapping with OF).  Move .text in a zImage from 4MB to 64MB (well past OF).
> 
> We still will not be able to load large zImage unless we also move OF,
> to that end, add a note to the zImage ELF to move OF to 32Mb.  If this
> is the very first kernel booted then we'll need to moev OF manually by
> setting real-base.
> 
> Signed-off-by: Tony Breeds <tony@bakeyournoodle•com>
> ---

Ooops should have said that this has been boot tested on power
3,4,5,5+,6 and JS20.  POWER4 firmware seems to have aproblem manually
reloacting realbase but asside from that it booted.

Yours Tony

  linux.conf.au    http://www.marchsouth.org/
  Jan 19 - 24 2009 The Australian Linux Technical Conference!

  reply	other threads:[~2008-06-23  8:16 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-23  8:13 [PATCH 1/1] Change the default link address for pSeries zImage kernels Tony Breeds
2008-06-23  8:16 ` Tony Breeds [this message]
2008-06-23  9:30 ` Adrian Reber
2008-06-23  9:57   ` Benjamin Herrenschmidt
2008-06-23 12:20 ` Michael Ellerman
2008-06-24  4:20 ` [PATCH v2] " Tony Breeds
2008-07-02 15:04   ` Olaf Hering
2008-07-04  3:14     ` Tony Breeds

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