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| author | Jason Gunthorpe <jgg@nvidia.com> | 2025-11-07 13:41:17 -0400 |
|---|---|---|
| committer | Alex Williamson <alex@shazbot.org> | 2025-11-12 14:58:23 -0700 |
| commit | 113557b0406818a8a5df3479b0a89125d2b2a04c (patch) | |
| tree | 975e048af935089042fa23b91c706d6e53f9500b /include/linux/vfio.h | |
| parent | 0ed3a30fd996cb0cac872432cf25185fda7e5316 (diff) | |
| download | lwn-113557b0406818a8a5df3479b0a89125d2b2a04c.tar.gz lwn-113557b0406818a8a5df3479b0a89125d2b2a04c.zip | |
vfio: Provide a get_region_info op
Instead of hooking the general ioctl op, have the core code directly
decode VFIO_DEVICE_GET_REGION_INFO and call an op just for it.
This is intended to allow mechanical changes to the drivers to pull their
VFIO_DEVICE_GET_REGION_INFO int oa function. Later patches will improve
the function signature to consolidate more code.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/1-v2-2a9e24d62f1b+e10a-vfio_get_region_info_op_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
Diffstat (limited to 'include/linux/vfio.h')
| -rw-r--r-- | include/linux/vfio.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/vfio.h b/include/linux/vfio.h index eb563f538dee..be5fcf8432e8 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -132,6 +132,8 @@ struct vfio_device_ops { size_t count, loff_t *size); long (*ioctl)(struct vfio_device *vdev, unsigned int cmd, unsigned long arg); + int (*get_region_info)(struct vfio_device *vdev, + struct vfio_region_info __user *arg); int (*mmap)(struct vfio_device *vdev, struct vm_area_struct *vma); void (*request)(struct vfio_device *vdev, unsigned int count); int (*match)(struct vfio_device *vdev, char *buf); |