> Subject: [PATCH v14 00/26] Add vfio_device cdev for iommufd support
>
> Existing VFIO provides group-centric user APIs for userspace. Userspace opens
> the /dev/vfio/$group_id first before getting device fd and hence getting
> access
> to device. This is not the desired model for iommufd. Per t
Existing VFIO provides group-centric user APIs for userspace. Userspace
opens the /dev/vfio/$group_id first before getting device fd and hence
getting access to device. This is not the desired model for iommufd. Per
the conclusion of community discussion[1], iommufd provides device-centric
kAPIs an