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Re: [PATCH v3] arm,smmu: match start level of page table walk with P2M
- To: Stefano Stabellini <sstabellini@xxxxxxxxxx>
- From: Laurentiu Tudor <laurentiu.tudor@xxxxxxx>
- Date: Fri, 2 Oct 2020 20:36:35 +0300
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- Cc: julien@xxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, Volodymyr_Babchuk@xxxxxxxx, will@xxxxxxxxxx, diana.craciun@xxxxxxx, anda-alexandra.dorneanu@xxxxxxx
- Delivery-date: Fri, 02 Oct 2020 17:36:46 +0000
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On 10/2/2020 8:25 PM, Stefano Stabellini wrote:
> On Fri, 2 Oct 2020, laurentiu.tudor@xxxxxxx wrote:
>> From: Laurentiu Tudor <laurentiu.tudor@xxxxxxx>
>>
>> Don't hardcode the lookup start level of the page table walk to 1
>> and instead match the one used in P2M. This should fix scenarios
>> involving SMMU where the start level is different than 1.
>> In order for the SMMU driver to also compile on arm32 move the
>> P2M_ROOT_LEVEL in the p2m header file (while at it, for
>> consistency also P2M_ROOT_ORDER) and use the macro in the smmu
>> driver.
>>
>> Signed-off-by: Laurentiu Tudor <laurentiu.tudor@xxxxxxx>
>
> Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
>
Thanks, Stefano!
---
Best Regards, Laurentiu
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