Re: [PATCHv8 00/11] Linear Address Masking enabling

From: Jason Gunthorpe
Date: Wed Sep 21 2022 - 14:12:09 EST


On Wed, Sep 21, 2022 at 10:11:46AM -0700, Dave Hansen wrote:

> Are you saying that any device compatibility with an mm is solely
> determined by the IOMMU in play, so the IOMMU code should host the mm
> compatibility checks?

Yes, exactly. Only the HW entity that walks the page tables needs to
understand their parsing rules and in this case that is only the IOMMU
block.

Jason