[PATCH v2 00/25] iommu: Make default_domain's mandatory

[Nicolin Chen]

On Mon, May 15, 2023 at 09:00:33PM -0300, Jason Gunthorpe wrote:
 
> This is on github: https://github.com/jgunthorpe/linux/commits/iommu_all_defdom

Ran some VFIO-passthrough sanity on x86 and ARM64, using this
branch. It should cover partially this series. So, if I may:

Tested-by: Nicolin Chen <nicolinc at nvidia.com>

Thanks
Nic

> v2:
>  - FSL is an IDENTITY domain
>  - Delete terga-gart instead of trying to carry it
>  - Use the policy determination from iommu_get_default_domain_type() to
>    drive the arm_iommu mode
>  - Reorganize and introduce new patches to do the above:
>     * Split the ops->identity_domain to an independent earlier patch
>     * Remove the UNMANAGED return from def_domain_type in mtk_v1 earlier
>       so the new iommu_get_default_domain_type() can work
>     * Make the driver's def_domain_type have higher policy priority than
>       untrusted
>     * Merge the set_platfom_dma_ops hunk from mtk_v1 along with rockchip
>       into the patch that forced IDENTITY on ARM32
>  - Revise sun50i to be cleaner and have a non-NULL internal domain
>  - Reword logging in exynos
>  - Remove the gdev from the group alloc path, instead add a new
>    function __iommu_group_domain_alloc() that takes in the group
>    and uses the first device. Split this to its own patch
>  - New patch to make iommufd's mock selftest into a real driver
>  - New patch to fix power's partial iommu driver