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lf-6.6.y
linux-imx/Documentation/ABI/testing/sysfs-devices-vfio-dev
Yi Liu 3c28a76124 vfio: Add struct device to vfio_device 
and replace kref. With it a 'vfio-dev/vfioX' node is created under the
sysfs path of the parent, indicating the device is bound to a vfio
driver, e.g.:

/sys/devices/pci0000\:6f/0000\:6f\:01.0/vfio-dev/vfio0

It is also a preparatory step toward adding cdev for supporting future
device-oriented uAPI.

Add Documentation/ABI/testing/sysfs-devices-vfio-dev.

Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20220921104401.38898-16-kevin.tian@intel.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-09-21 14:15:11 -06:00

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What: /sys/...//vfio-dev/vfioX/ Date: September 2022 Contact: Yi Liu yi.l.liu@intel.com Description: This directory is created when the device is bound to a vfio driver. The layout under this directory matches what exists for a standard 'struct device'. 'X' is a unique index marking this device in vfio.