1 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index b46671e28de2..65261a7244fc 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -78,6 +78,10 @@ bool virtqueue_is_broken(struct virtqueue *vq);
 /**
  * virtio_device - representation of a device using virtio
  * @index: unique position on the virtio bus
+ * @failed: saved value for CONFIG_S_FAILED bit (for restore)
+ * @config_enabled: configuration change reporting enabled
+ * @config_change_pending: configuration change reported while disabled
+ * @config_lock: protects configuration change reporting
  * @dev: underlying device.
  * @id: the device type identification (used to match it with a driver).
  * @config: the configuration ops for this device.
@@ -88,6 +92,10 @@ bool virtqueue_is_broken(struct virtqueue *vq);
  */
 struct virtio_device {
         int index;
+        bool failed;
+        bool config_enabled;
+        bool config_change_pending;
+        spinlock_t config_lock;
         struct device dev;
         struct virtio_device_id id;
         const struct virtio_config_ops *config;
@@ -108,6 +116,12 @@ void unregister_virtio_device(struct virtio_device *dev);
 
 void virtio_break_device(struct virtio_device *dev);
 
+void virtio_config_changed(struct virtio_device *dev);
+#ifdef CONFIG_PM_SLEEP
+int virtio_device_freeze(struct virtio_device *dev);
+int virtio_device_restore(struct virtio_device *dev);
+#endif
+
 /**
  * virtio_driver - operations for a virtio I/O driver
  * @driver: underlying device driver (populate name and owner).