Re: [PATCH v5 3/3] xen/arm: mpu: Implement a dummy enable_secondary_cpu_mm

[Julien Grall <julien@xxxxxxx>]

Hi Ayan,

On 07/11/2024 15:03, Ayan Kumar Halder wrote:
> Secondary cpus initialization is not yet supported. Thus, we print an
> appropriate message and put the secondary cpus in WFE state.
> And we introduce to BUILD_BUG_ON to prevent users using from building Xen
> on multiprocessor based MPU systems.
>
> In Arm, there is no clean way to disable SMP. As of now, we wish to support
> MPU on UNP only. So, we have defined the default range of NR_CPUs to be 1 for
> MPU.
>
> Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
> Reviewed-by: Luca Fancellu <luca.fancellu@xxxxxxx>
Acked-by: Julien Grall <jgrall@xxxxxxxxxx>

Cheers,

--
Julien Grall