Re: Multi-Processor support

[Jason Thorpe <thorpej%nas.nasa.gov@localhost>]

On Wed, 23 Oct 1996 08:11:05 +0200 (MET DST) 
 Markus Illenseer <markus%server.peacock.de@localhost> wrote:

 >  Currently I do not know how to deal with two processors, I believe that
 > you need to enable SMP (that is symetric multiprocessing) anyway, so
 > by default only one CPU is working?

To quote "PowerPC Microprocessor Common Hardware Reference Platform: A
System Architecture", section 12.2.1 - SMP-Safe Boot:

        3. One of the first things that the firmware does is
           establish one of the processors as the `master'.
           The `master' is a single processor which continues
           with the rest of the booting process; all of the
           others are places in a `stopped state'.  A processor
           in this `stopped state' is out of the picture; it does
           nothing that affects the state of the system and will
           continue to be in that state until awakened by
           some outside force such as an inter-processor interrupt
           (IPI).

Jason R. Thorpe                                       
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