From: Adrian Reber <adrian@lisas.de>
To: Tony Breeds <tony@bakeyournoodle.com>
Cc: linuxppc-dev@ozlabs.org, Paul Mackerras <paulus@samba.org>
Subject: Re: [PATCH 1/1] Change the default link address for pSeries zImage kernels.
Date: Mon, 23 Jun 2008 11:30:24 +0200 [thread overview]
Message-ID: <20080623093024.GA9377@lisas.de> (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.
Does this change also affect kernels for SLOF based systems (JS20, JS21,
Bimini/Powerstation, QS21, QS22)?
To avoid exactly that problem SLOF moved to a bit below 256MB on all
those platforms (about 220MB). There should be still enough space
between 64MB and 220MB to boot large kernels. It is, however, decreased
by 60MB.
Adrian
next prev parent reply other threads:[~2008-06-23 9:36 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
2008-06-23 9:30 ` Adrian Reber [this message]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20080623093024.GA9377@lisas.de \
--to=adrian@lisas.de \
--cc=linuxppc-dev@ozlabs.org \
--cc=paulus@samba.org \
--cc=tony@bakeyournoodle.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).