OpenCloudOS-Kernel/drivers/vfio/pci/mlx5
Jason Gunthorpe a4d1f91db5 vfio-iommufd: Support iommufd for physical VFIO devices
This creates the iommufd_device for the physical VFIO drivers. These are
all the drivers that are calling vfio_register_group_dev() and expect the
type1 code to setup a real iommu_domain against their parent struct
device.

The design gives the driver a choice in how it gets connected to iommufd
by providing bind_iommufd/unbind_iommufd/attach_ioas callbacks to
implement as required. The core code provides three default callbacks for
physical mode using a real iommu_domain. This is suitable for drivers
using vfio_register_group_dev()

Link: https://lore.kernel.org/r/6-v4-42cd2eb0e3eb+335a-vfio_iommufd_jgg@nvidia.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Yi Liu <yi.l.liu@intel.com>
Tested-by: Lixiao Yang <lixiao.yang@intel.com>
Tested-by: Matthew Rosato <mjrosato@linux.ibm.com>
Tested-by: Yu He <yu.he@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-12-02 11:52:03 -04:00
..
Kconfig
Makefile
cmd.c vfio/mlx5: Set the driver DMA logging callbacks 2022-09-08 12:59:01 -06:00
cmd.h vfio/mlx5: Set the driver DMA logging callbacks 2022-09-08 12:59:01 -06:00
main.c vfio-iommufd: Support iommufd for physical VFIO devices 2022-12-02 11:52:03 -04:00