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Re: [PATCH v4 5/6] xen/arm: mpu: Enable MPU
- To: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
- From: Luca Fancellu <Luca.Fancellu@xxxxxxx>
- Date: Mon, 28 Oct 2024 15:39:14 +0000
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- Delivery-date: Mon, 28 Oct 2024 15:39:38 +0000
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- Thread-topic: [PATCH v4 5/6] xen/arm: mpu: Enable MPU
Hi Ayan,
> On 28 Oct 2024, at 12:45, Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx> wrote:
>
> After the regions have been created, now we enable the MPU. For this we
> disable
> the background region so that the new memory map created for the regions take
> effect. Also, we treat all RW regions as non executable and the data cache is
> enabled.
>
> As enable_mpu() is invoked from enable_boot_cpu_mm(), one needs to save and
> restore the lr.
>
> Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
> ---
>
It looks good to me:
Reviewed-by: Luca Fancellu <luca.fancellu@xxxxxxx>
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