This new optional callback is used to bind the device to a specific address space so the vDPA framework can use VA when this callback is implemented.
Suggested-by: Jason Wang <[email protected]> Signed-off-by: Stefano Garzarella <[email protected]> --- include/linux/vdpa.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index 6d0f5e4e82c2..34388e21ef3f 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -282,6 +282,12 @@ struct vdpa_map_file { * @iova: iova to be unmapped * @size: size of the area * Returns integer: success (0) or error (< 0) + * @bind_mm: Bind the device to a specific address space + * so the vDPA framework can use VA when this + * callback is implemented. (optional) + * @vdev: vdpa device + * @mm: address space to bind + * @owner: process that owns the address space * @free: Free resources that belongs to vDPA (optional) * @vdev: vdpa device */ @@ -341,6 +347,8 @@ struct vdpa_config_ops { u64 iova, u64 size); int (*set_group_asid)(struct vdpa_device *vdev, unsigned int group, unsigned int asid); + int (*bind_mm)(struct vdpa_device *vdev, struct mm_struct *mm, + struct task_struct *owner); /* Free device resources */ void (*free)(struct vdpa_device *vdev); -- 2.38.1 _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
