Re: [PATCH v4 06/14] iommufd: Add IOMMUFD_OBJ_VEVENTQ and IOMMUFD_CMD_VEVENTQ_ALLOC

[Baolu Lu]

On 1/4/25 03:43, Nicolin Chen wrote:
> Introduce a new IOMMUFD_OBJ_VEVENTQ object for vIOMMU Event Queue that
> provides user space (VMM) another FD to read the vIOMMU Events.
>
> Allow a vIOMMU object to allocate vEVENTQs, with a condition that each
> vIOMMU can only have one single vEVENTQ per type.
>
> Add iommufd_veventq_alloc() with iommufd_veventq_ops for the new ioctl.
>
> Signed-off-by: Nicolin Chen<nicolinc@xxxxxxxxxx>
> ---
>   drivers/iommu/iommufd/iommufd_private.h |  58 +++++++++++
>   include/linux/iommufd.h                 |   3 +
>   include/uapi/linux/iommufd.h            |  31 ++++++
>   drivers/iommu/iommufd/eventq.c          | 129 ++++++++++++++++++++++++
>   drivers/iommu/iommufd/main.c            |   7 ++
>   drivers/iommu/iommufd/viommu.c          |   2 +
>   6 files changed, 230 insertions(+)

Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>