OpenFirmware and interrupt-map

Eric W. Biederman ebiederman at
Wed Feb 4 18:25:01 CET 2004

Stefan Reinauer <stepan at> writes:

> * ron minnich <rminnich at> [040204 04:49]:
> > On 3 Feb 2004, Eric W. Biederman wrote:
> > 
> > > For video.  Does any one support anything else?  RAID cards?
> > 
> > Not sure on PPC. The Alpha doesn't matter any more but my memory says that 
> > if you put a card with an option rom on the Alpha it would run the ROM. 
> > But that's very old memory.
> Yes, the Alpha was able to initialize RAID/SCSI x86 option roms. SRM was
> even defining an os callback to execute intXX calls from a running
> operating system. Unfortunately it was never implemented.

Interesting.  I do know that the RAID/SCSI x86 option roms in general
were not needed on the Alpha.  Do you know of any RAID/SCSI cards that
actually need their option ROM to be run?

Every one I have research it is a non issue.


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