Re: [PATCH v14 00/13] SMMUv3 Nested Stage Setup (IOMMU part)

[Jean-Philippe Brucker]

Hi Sumit,

On Thu, Apr 22, 2021 at 08:34:38PM +0530, Sumit Gupta wrote:
> Had to revert patch "mm: notify remote TLBs when dirtying a PTE".

Did that patch cause any issue, or is it just not needed on your system?
It fixes an hypothetical problem with the way ATS is implemented. Maybe I
actually observed it on an old software model, I don't remember. Either
way it's unlikely to go upstream but I'd like to know if I should drop it
from my tree.

Thanks,
Jean