Re: ARM11MPCore - AMP Mode

[Dirk Behme <dirk.behme@xxxxxxxxxxxxxx>]

Russell King - ARM Linux wrote:
> On Wed, Jul 01, 2009 at 06:35:39PM +0200, Dirk Behme wrote:
>> I don't think there is a way to reconfigure the kernel for running 
>> only on core 1. Most probably this would need (a lot of?) hacking. As 
>> I understand it, the current concept is that core 0 is the "master" 
>> and boots the "slaves", e.g. core 1.
> 
> You _should_ be able to boot a uniprocessor kernel on one core and have
> it work.
> 
> The problem with earlier Realview boards is that the SMP boards had a
> different address map to the uniprocessor boards, so the same kernel
> won't run on both hardware.  Whether that's true of the later boards or
> not I'm not sure.
> 
> However, it should hold that a uniprocessor kernel which boots on core 0
> should boot on core 1 provided that core 0 is stopped, and hardware SMP
> mode is disabled on all cores.  If this wasn't the case, things wouldn't
> be symetric in SMP mode.

What do you mean with "things wouldn't be symetric in SMP mode"? What 
does "symetric in SMP mode" mean?

Thanks

Dirk


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