Subject: Re: *BSD supporting 603[3]?
To: Wolfgang Solfrank <ws@kurt.tools.de>
From: Jason Thorpe <thorpej@nas.nasa.gov>
List: port-powerpc
Date: 01/31/1997 01:33:53
On Thu, 30 Jan 1997 17:45:19 +0100
ws@kurt.tools.de (Wolfgang Solfrank) wrote:
> What revision does the firmware have? I'm currently running 3.0.
3.03
> According to the PPC binding, the OpenFirmware isn't allowed to use the
> BATs (albeit I cannot see a reason for this restriction, if they are saved
> and restored on client entry/exit).
Hmm, ok...
> Actually, the firmware in my MX did use BATs for its mappings when I got it,
> but newer revisions of the firmware replaced this with page table mapping.
> So I would be really surprised, if they switched back to BATs.
>
> > So, the main question I have is:
> >
> > "Should I expect trouble?"
>
> Since initial development was with the use of BATs, there shouldn't be a
> problem. However, I have to admit that I'm not 100% sure that I didn't
> manage to break support for this.
Alright, this is somewhat reassuring :-)
> If I really did introduce some incompatibilities, it should be quite easy
> to fix.
Ok, I'll let you know.
Jason R. Thorpe thorpej@nas.nasa.gov
NASA Ames Research Center Home: 408.866.1912
NAS: M/S 258-6 Work: 415.604.0935
Moffett Field, CA 94035 Pager: 415.428.6939