> -Original Message-
> From: Jiang, Yanting [mailto:yanting.ji...@intel.com]
> Sent: 28 April 2023 10:30
> To: Liu, Yi L ; alex.william...@redhat.com;
> j...@nvidia.com; Tian, Kevin
> Cc: j...@8bytes.org; robin.mur...@arm.com; coh...@redhat.com;
> eric.au...@redhat.com; nicol...@nvidia.
> Subject: [PATCH v10 00/22] 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