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-rw-r--r--include/linux/vfio.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index b7e18bde5aa8..ad8b579d67d3 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -15,6 +15,18 @@
#include <linux/poll.h>
#include <uapi/linux/vfio.h>
+struct vfio_device {
+ struct device *dev;
+ const struct vfio_device_ops *ops;
+ struct vfio_group *group;
+
+ /* Members below here are private, not for driver use */
+ refcount_t refcount;
+ struct completion comp;
+ struct list_head group_next;
+ void *device_data;
+};
+
/**
* struct vfio_device_ops - VFIO bus driver device callbacks
*
@@ -48,11 +60,15 @@ struct vfio_device_ops {
extern struct iommu_group *vfio_iommu_group_get(struct device *dev);
extern void vfio_iommu_group_put(struct iommu_group *group, struct device *dev);
+void vfio_init_group_dev(struct vfio_device *device, struct device *dev,
+ const struct vfio_device_ops *ops, void *device_data);
+int vfio_register_group_dev(struct vfio_device *device);
extern int vfio_add_group_dev(struct device *dev,
const struct vfio_device_ops *ops,
void *device_data);
extern void *vfio_del_group_dev(struct device *dev);
+void vfio_unregister_group_dev(struct vfio_device *device);
extern struct vfio_device *vfio_device_get_from_dev(struct device *dev);
extern void vfio_device_put(struct vfio_device *device);
extern void *vfio_device_data(struct vfio_device *device);