Re: [PATCH v2 19/29] arm_mpam: Use a static key to indicate when mpam is enabled

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On Wed, 10 Sep 2025 20:42:59 +0000
James Morse <james.morse@xxxxxxx> wrote:

> Once all the MSC have been probed, the system wide usable number of
> PARTID is known and the configuration arrays can be allocated.
> 
> After this point, checking all the MSC have been probed is pointless,
> and the cpuhp callbacks should restore the configuration, instead of
> just resetting the MSC.
> 
> Add a static key to enable this behaviour. This will also allow MPAM
> to be disabled in repsonse to an error, and the architecture code to
> enable/disable the context switch of the MPAM system registers.
> 
> Signed-off-by: James Morse <james.morse@xxxxxxx>

Seems fine to me (other than the TODO move to arch code
that should probably be resolved.

Reviewed-by: Jonathan Cameron <jonathan.cameron@xxxxxxxxxx>






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