Re: [PATCH v3 2/6] arm/mpu: Provide and populate MPU C data structures

[Julien Grall <julien@xxxxxxx>]

Hi Ayan,

On 11/06/2025 15:35, Ayan Kumar Halder wrote:
> Modify Arm32 assembly boot code to reset any unused MPU region, initialise
> 'max_mpu_regions' with the number of supported MPU regions and set/clear the
> bitmap 'xen_mpumap_mask' used to track the enabled regions.
>
> Introduce cache.S to hold arm32 cache related functions.
>
> Use the macro definition for "dcache_line_size" from linux.
>
> Change the order of registers in prepare_xen_region() as 'strd' instruction
> is used to store {prbar, prlar} in arm32. Thus, 'prbar' has to be a even
> numbered register and 'prlar' is the consecutively ordered register.
>
> Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
Acked-by: Julien Grall <jgrall@xxxxxxxxxx>

Cheers,

--
Julien Grall