From: Geoff Levand <geoffrey.levand@am•sony.com>
To: David Gibson <david@gibson•dropbear.id.au>
Cc: linuxppc-dev@ozlabs•org
Subject: Re: [RFC 3/3] zImage: Exception vector support
Date: Tue, 20 Feb 2007 06:23:04 -0800 [thread overview]
Message-ID: <45DB0448.9080301@am.sony.com> (raw)
In-Reply-To: <20070220022538.GH17818@localhost.localdomain>
David Gibson wrote:
> On Sat, Feb 17, 2007 at 05:17:08PM -0800, Geoff Levand wrote:
>> Add SMP exception vector support to the powerpc zImage bootwrapper. For
>> platforms which have entry points in the vector table. This implements
>> SMP entry via the system reset vector.
>
> I really don't like having always-included code take over the absolute
> start of the zImage's address space. The whole idea in my entry
> cleanup patch is that the platform code gets control of the "head.S"
> area, so we can potentially support platforms with conflicting
> hard-wired requirements for things at specific offsets.
>
> I think this belongs in a ps3.o, which will define _zimage_start to be
> identical to the reset vector.
>
I need two entry points, one for the first stage loader (0x100), and one
for a second stage kexec loader (_zimage_start).
-Geoff
next prev parent reply other threads:[~2007-02-20 14:23 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-18 1:17 [RFC 3/3] zImage: Exception vector support Geoff Levand
2007-02-18 1:40 ` Josh Boyer
2007-02-19 15:03 ` Geoff Levand
2007-02-19 19:55 ` Benjamin Herrenschmidt
2007-02-19 20:40 ` Geoff Levand
2007-02-19 20:51 ` Benjamin Herrenschmidt
2007-02-19 21:35 ` Josh Boyer
2007-02-19 21:39 ` Geoff Levand
2007-02-19 21:51 ` Josh Boyer
2007-02-19 0:34 ` Paul Mackerras
2007-02-20 2:25 ` David Gibson
2007-02-20 14:23 ` Geoff Levand [this message]
2007-02-20 15:44 ` Geoff Levand
2007-02-20 16:02 ` Segher Boessenkool
2007-02-21 0:16 ` David Gibson
2007-02-23 17:06 ` Benjamin Herrenschmidt
2007-02-23 17:52 ` Segher Boessenkool
2007-02-21 0:16 ` David Gibson
2007-02-23 17:06 ` Benjamin Herrenschmidt
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