[3/3] powerpc/fadump: add support for fadump_nr_cpus= parameter

Hari Bathini hbathini at linux.vnet.ibm.com
Mon May 9 19:35:58 AEST 2016

On 05/07/2016 09:42 AM, Michael Ellerman wrote:
> On Fri, 2016-06-05 at 11:51:08 UTC, Hari Bathini wrote:
>> Kernel parameter 'nr_cpus' can be used to limit the maximum number
>> of processors that an SMP kernel could support. This patch extends
>> this to fadump by introducing 'fadump_nr_cpus' parameter that can
>> help in booting fadump kernel on a lower memory footprint.
> Is there really no other way to do this? I really hate adding new, single use
> only command line parameters.

Hmmm.. only alternative I can think about is enforcing a certain nr_cpu_ids
value whenever fadump is active, but that doesn't sound right..
Any suggestions?


> cheers
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