diff options
Diffstat (limited to 'include/linux/vfio.h')
| -rw-r--r-- | include/linux/vfio.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/vfio.h b/include/linux/vfio.h index e7cebeb875dd..a7fc4d747dc2 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -17,6 +17,8 @@ #include <linux/iova_bitmap.h> struct kvm; +struct iommufd_ctx; +struct iommufd_device; /* * VFIO devices can be placed in a set, this allows all devices to share this @@ -54,6 +56,10 @@ struct vfio_device { struct completion comp; struct list_head group_next; struct list_head iommu_entry; +#if IS_ENABLED(CONFIG_IOMMUFD) + struct iommufd_device *iommufd_device; + bool iommufd_attached; +#endif }; /** @@ -80,6 +86,10 @@ struct vfio_device_ops { char *name; int (*init)(struct vfio_device *vdev); void (*release)(struct vfio_device *vdev); + int (*bind_iommufd)(struct vfio_device *vdev, + struct iommufd_ctx *ictx, u32 *out_device_id); + void (*unbind_iommufd)(struct vfio_device *vdev); + int (*attach_ioas)(struct vfio_device *vdev, u32 *pt_id); int (*open_device)(struct vfio_device *vdev); void (*close_device)(struct vfio_device *vdev); ssize_t (*read)(struct vfio_device *vdev, char __user *buf, @@ -96,6 +106,21 @@ struct vfio_device_ops { void __user *arg, size_t argsz); }; +#if IS_ENABLED(CONFIG_IOMMUFD) +int vfio_iommufd_physical_bind(struct vfio_device *vdev, + struct iommufd_ctx *ictx, u32 *out_device_id); +void vfio_iommufd_physical_unbind(struct vfio_device *vdev); +int vfio_iommufd_physical_attach_ioas(struct vfio_device *vdev, u32 *pt_id); +#else +#define vfio_iommufd_physical_bind \ + ((int (*)(struct vfio_device *vdev, struct iommufd_ctx *ictx, \ + u32 *out_device_id)) NULL) +#define vfio_iommufd_physical_unbind \ + ((void (*)(struct vfio_device *vdev)) NULL) +#define vfio_iommufd_physical_attach_ioas \ + ((int (*)(struct vfio_device *vdev, u32 *pt_id)) NULL) +#endif + /** * @migration_set_state: Optional callback to change the migration state for * devices that support migration. It's mandatory for |