Re: [PATCH v4 4/8] iommufd/selftest: Put iopf enablement in domain attach path

[Yi Liu]

On 2025/3/13 13:19, Lu Baolu wrote:
> Update iopf enablement in the iommufd mock device driver to use the new
> method, similar to the arm-smmu-v3 driver. Enable iopf support when any
> domain with an iopf_handler is attached, and disable it when the domain
> is removed.
>
> Add a refcount in the mock device state structure to keep track of the
> number of domains set to the device and PASIDs that require iopf.
>
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
> Tested-by: Zhangfei Gao <zhangfei.gao@xxxxxxxxxx>
> ---
>   drivers/iommu/iommufd/selftest.c | 64 ++++++++++++++++++++++++++------
>   1 file changed, 53 insertions(+), 11 deletions(-)

Reviewed-by: Yi Liu <yi.l.liu@xxxxxxxxx>

Regards,
Yi Liu