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From: "Ingmar" <i2a@gmx.net>
To: Olof Johansson <olof@lixom.net>
Cc: linuxppc-dev list <linuxppc-dev@ozlabs.org>
Subject: Re: exception vectors
Date: Tue, 1 Nov 2005 09:28:31 +0100	[thread overview]
Message-ID: <20051101081944.M97356@gmx.net> (raw)
In-Reply-To: <20051101014630.GA7938@pb15.lixom.net>


> > > > I am trying to overwrite the exception vector space of an ibook G4 :).
> > > 
> > > Why?
> > > 
> > 
> > For my thesis project I am porting the Minix (v3) OS.
> 
> Sounds like using qemu or some other emulator to do the PPC port first
> might be an easier choice, and make debugging easier for you during
> early bringup.

I was going to try that, before I got the ibook. Then I got the ibook and I
wanted to get my hand dirty. Nothing beats the real thing :)

But I have figured it out, I have the code working...

It are more or less (just) two things:
 - mmu off,
 - make sure u copy through the cache.

And of course make sure your secondary code is working as it should, then a emu
would help :).

Thanks for the reactions.
  Ingmar

      reply	other threads:[~2005-11-01  8:28 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-10-30  4:03 30 bits DMA and ppc Benjamin Herrenschmidt
2005-10-30  8:47 ` [Bcm43xx-dev] " Michael Buesch
2005-10-30 17:59 ` Olof Johansson
2005-10-30 21:14   ` Benjamin Herrenschmidt
2005-10-30 21:35     ` Olof Johansson
2005-10-30 21:41       ` Benjamin Herrenschmidt
2005-10-30 22:02         ` Olof Johansson
2005-10-31  0:35 ` exception vectors Ingmar
2005-10-31  2:17   ` Benjamin Herrenschmidt
2005-10-31  2:28   ` Hollis Blanchard
2005-10-31  9:58     ` Ingmar
2005-11-01  1:46       ` Olof Johansson
2005-11-01  8:28         ` Ingmar [this message]

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