[PATCH 4/6] cmdline: Add cmdline support

Sebastian Huber sebastian.huber at embedded-brains.de
Thu Aug 3 05:14:20 UTC 2017


On 02/08/17 21:07, Andreas Kölbl wrote:

> Am 02.08.2017 um 15:54 schrieb Sebastian Huber:
>> On 01/08/17 22:14, Andreas Kölbl wrote:
>>
>>> At the moment I didn't implement smp functionality. I will implement it
>>> directly after implementing SMP.
>> You can use arm_cortex_a9_get_multiprocessor_cpu_id() in all
>> configurations.
>>
>> Please try to use the functions in <libcpu/arm-cp15.h> in your BSP. If
>> missing, then add them.
>>
> I've tried this approach. The cortex-a15 manual states:
>
> "CPU ID	
> Indicates the processor number in a Cortex-A15 multiprocessor system. For:
> one processor, the CPU ID is 0x0 [1]."
>
> In the Jailhouse single processor configuration this method does not work.

Why does it not work?

If you have a single processor, then why do you need this anyway?

-- 
Sebastian Huber, embedded brains GmbH

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