RE: [PATCH 01/17] iommu: Add new iommu op to create domains owned by userspace

[Tian, Kevin]

> From: Liu, Yi L <yi.l.liu@xxxxxxxxx>
> Sent: Thursday, February 9, 2023 12:32 PM
> 
> From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> 
> Introduce a new iommu_domain op to create domains owned by userspace,
> e.g. through iommufd. These domains have a few different properties
> compares to kernel owned domains:
> 
>  - They may be MANAGED domains, but created with special parameters.
>    For instance aperture size changes/number of levels, different
>    IOPTE formats, or other things necessary to make a vIOMMU work
> 

what is *MANAGED* domain?

today we only have the separation between DMA domain and
UNMANAGED domain.

soon with Jason's cleanup all domains are called UNMANAGED.