Re: [PATCH v6 19/25] iommu/arm-smmu-v3-iommufd: Add vsmmu_size/type and vsmmu_init impl ops

[Jason Gunthorpe]

On Sat, Jun 14, 2025 at 12:14:44AM -0700, Nicolin Chen wrote:
> An impl driver might want to allocate its own type of vIOMMU object or the
> standard IOMMU_VIOMMU_TYPE_ARM_SMMUV3 by setting up its own SW/HW bits, as
> the tegra241-cmdqv driver will add IOMMU_VIOMMU_TYPE_TEGRA241_CMDQV.
> 
> Add vsmmu_size/type and vsmmu_init to struct arm_smmu_impl_ops. Prioritize
> them in arm_smmu_get_viommu_size() and arm_vsmmu_init().
> 
> Reviewed-by: Pranjal Shrivastava <praan@xxxxxxxxxx>
> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
> Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx>
> ---
>  drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h         | 5 +++++
>  drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c | 8 ++++++++
>  2 files changed, 13 insertions(+)

Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>

Jason