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-rw-r--r--drivers/vfio/mdev/mdev_core.c6
-rw-r--r--drivers/vfio/mdev/mdev_private.h10
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c
index bf3b3b0b3d2b..30d05304241e 100644
--- a/drivers/vfio/mdev/mdev_core.c
+++ b/drivers/vfio/mdev/mdev_core.c
@@ -30,6 +30,12 @@ static struct class_compat *mdev_bus_compat_class;
static LIST_HEAD(mdev_list);
static DEFINE_MUTEX(mdev_list_lock);
+struct device *mdev_parent_dev(struct mdev_device *mdev)
+{
+ return mdev->parent->dev;
+}
+EXPORT_SYMBOL(mdev_parent_dev);
+
static int _find_mdev_device(struct device *dev, void *data)
{
struct mdev_device *mdev;
diff --git a/drivers/vfio/mdev/mdev_private.h b/drivers/vfio/mdev/mdev_private.h
index 0b72c2d9ee40..b05dd22fc9a6 100644
--- a/drivers/vfio/mdev/mdev_private.h
+++ b/drivers/vfio/mdev/mdev_private.h
@@ -16,6 +16,16 @@
int mdev_bus_register(void);
void mdev_bus_unregister(void);
+struct mdev_parent {
+ struct device *dev;
+ const struct mdev_parent_ops *ops;
+ struct kref ref;
+ struct mutex lock;
+ struct list_head next;
+ struct kset *mdev_types_kset;
+ struct list_head type_list;
+};
+
struct mdev_type {
struct kobject kobj;
struct kobject *devices_kobj;