Subject: Re: [RFC 3/3] zImage: Exception vector support

From: Benjamin Herrenschmidt <[email-masked]>
Date: Tue, 20 Feb 2007 06:55:04 +1100

On Mon, 2007-02-19 at 07:03 -0800, Geoff Levand wrote:
> Josh Boyer 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.
> >> 
> >> Signed-off-by: Geoff Levand <[email-masked]>
> >> 
> >> ---
> >>  arch/powerpc/boot/head.S       |   96 +++++++++++++++++++++++++++++++++++++++++
> >>  arch/powerpc/boot/zImage.lds.S |    2 
> > 
> > This one seems pretty PS3 specific, and there's no makefile entry to actually
> > compile it...  Could we name it head_ps3.S or something similar?
> > 
> > Or am I misunderstanding the code and it's really generic to most SMP
> > machines (which would make a case to arguably call it head_smp.S).
> 
> No, its not platform specific nor SMP specific, it should work
> with all SMP and UP platforms that need this kind of support.

Well, all platforms that are multithread at least... the thread number
testing won't do any good on 970 for example :-)

Ben.