[PATCH v1 06/12] iommufd/selftest: Implement mock_get_viommu_size and mock_viommu_init

[Tian, Kevin]

> From: Nicolin Chen <nicolinc at nvidia.com>
> Sent: Tuesday, June 10, 2025 1:13 AM
> 
> Sanitize the inputs and report the size of struct mock_viommu on success,
> in mock_get_viommu_size().
> 
> The core will ensure the viommu_type is set to the core vIOMMU object, so
> simply init the driver part in mock_viommu_init().
> 
> The mock_viommu_alloc() will be cleaned up once the transition is done.
> 
> Signed-off-by: Nicolin Chen <nicolinc at nvidia.com>

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

btw I didn't see where mock_viommu->s2_parent is set in the original
code. Is it a bug or oversight?