RE: [PATCH v5 20/29] iommu: Allow an input type in hw_info op

Tian, Kevin
2025-05-23T08:15:33Z

> From: Nicolin Chen <nicolinc@nvidia.com>
> Sent: Sunday, May 18, 2025 11:22 AM
>
> The hw_info uAPI will support a bidirectional data_type field that can be
> used as an input field for user space to request for a specific info data.
>
> To prepare for the uAPI update, change the iommu layer first:
> - Add a new IOMMU_HW_INFO_TYPE_DEFAULT as an input, for which driver
> can
> output its only (or firstly) supported type
> - Update the kdoc accordingly
> - Roll out the type validation in the existing drivers
>
> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>

Reviewed-by: Kevin Tian <kevin.tian@intel.com>