Replace GCC_FMT_ATTR with G_GNUC_PRINTF

[mirror_qemu.git] / include / hw / virtio / virtio.h

diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index c32a815303730700e60c2ddd06c427189149cb98..b31c4507f5ddeb3ce96865138911bd7844836400 100644 (file)
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -21,6 +21,7 @@
 #include "qemu/event_notifier.h"
 #include "standard-headers/linux/virtio_config.h"
 #include "standard-headers/linux/virtio_ring.h"
+#include "qom/object.h"
 
 /* A guest should never accept this.  It implies negotiation is broken. */
 #define VIRTIO_F_BAD_FEATURE           30
@@ -42,7 +43,7 @@ typedef struct VirtIOFeature {
     size_t end;
 } VirtIOFeature;
 
-size_t virtio_feature_get_config_size(VirtIOFeature *features,
+size_t virtio_feature_get_config_size(const VirtIOFeature *features,
                                       uint64_t host_features);
 
 typedef struct VirtQueue VirtQueue;
@@ -67,12 +68,7 @@ typedef struct VirtQueueElement
 #define VIRTIO_NO_VECTOR 0xffff
 
 #define TYPE_VIRTIO_DEVICE "virtio-device"
-#define VIRTIO_DEVICE_GET_CLASS(obj) \
-        OBJECT_GET_CLASS(VirtioDeviceClass, obj, TYPE_VIRTIO_DEVICE)
-#define VIRTIO_DEVICE_CLASS(klass) \
-        OBJECT_CLASS_CHECK(VirtioDeviceClass, klass, TYPE_VIRTIO_DEVICE)
-#define VIRTIO_DEVICE(obj) \
-        OBJECT_CHECK(VirtIODevice, (obj), TYPE_VIRTIO_DEVICE)
+OBJECT_DECLARE_TYPE(VirtIODevice, VirtioDeviceClass, VIRTIO_DEVICE)
 
 enum virtio_device_endian {
     VIRTIO_DEVICE_ENDIAN_UNKNOWN,
@@ -100,9 +96,12 @@ struct VirtIODevice
     uint16_t device_id;
     bool vm_running;
     bool broken; /* device in invalid state, needs reset */
+    bool use_disabled_flag; /* allow use of 'disable' flag when needed */
+    bool disabled; /* device in temporarily disabled state */
     bool use_started;
     bool started;
     bool start_on_kick; /* when virtio 1.0 feature has not been negotiated */
+    bool disable_legacy_check;
     VMChangeStateEntry *vmstate;
     char *bus_name;
     uint8_t device_endian;
@@ -111,7 +110,7 @@ struct VirtIODevice
     QLIST_HEAD(, VirtQueue) *vector_queues;
 };
 
-typedef struct VirtioDeviceClass {
+struct VirtioDeviceClass {
     /*< private >*/
     DeviceClass parent;
     /*< public >*/
@@ -161,7 +160,7 @@ typedef struct VirtioDeviceClass {
     int (*post_load)(VirtIODevice *vdev);
     const VMStateDescription *vmsd;
     bool (*primary_unplug_pending)(void *opaque);
-} VirtioDeviceClass;
+};
 
 void virtio_instance_init_common(Object *proxy_obj, void *data,
                                  size_t vdev_size, const char *vdev_name);
@@ -170,19 +169,20 @@ void virtio_init(VirtIODevice *vdev, const char *name,
                          uint16_t device_id, size_t config_size);
 void virtio_cleanup(VirtIODevice *vdev);
 
-void virtio_error(VirtIODevice *vdev, const char *fmt, ...) GCC_FMT_ATTR(2, 3);
+void virtio_error(VirtIODevice *vdev, const char *fmt, ...) G_GNUC_PRINTF(2, 3);
 
 /* Set the child bus name. */
 void virtio_device_set_child_bus_name(VirtIODevice *vdev, char *bus_name);
 
 typedef void (*VirtIOHandleOutput)(VirtIODevice *, VirtQueue *);
-typedef bool (*VirtIOHandleAIOOutput)(VirtIODevice *, VirtQueue *);
 
 VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
                             VirtIOHandleOutput handle_output);
 
 void virtio_del_queue(VirtIODevice *vdev, int n);
 
+void virtio_delete_queue(VirtQueue *vq);
+
 void virtqueue_push(VirtQueue *vq, const VirtQueueElement *elem,
                     unsigned int len);
 void virtqueue_flush(VirtQueue *vq, unsigned int count);
@@ -224,6 +224,7 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id);
 
 void virtio_notify_config(VirtIODevice *vdev);
 
+bool virtio_queue_get_notification(VirtQueue *vq);
 void virtio_queue_set_notification(VirtQueue *vq, int enable);
 
 int virtio_queue_ready(VirtQueue *vq);
@@ -290,6 +291,7 @@ typedef struct VirtIORNGConf VirtIORNGConf;
                       VIRTIO_F_RING_PACKED, false)
 
 hwaddr virtio_queue_get_desc_addr(VirtIODevice *vdev, int n);
+bool virtio_queue_enabled_legacy(VirtIODevice *vdev, int n);
 bool virtio_queue_enabled(VirtIODevice *vdev, int n);
 hwaddr virtio_queue_get_avail_addr(VirtIODevice *vdev, int n);
 hwaddr virtio_queue_get_used_addr(VirtIODevice *vdev, int n);
@@ -314,8 +316,8 @@ bool virtio_device_ioeventfd_enabled(VirtIODevice *vdev);
 EventNotifier *virtio_queue_get_host_notifier(VirtQueue *vq);
 void virtio_queue_set_host_notifier_enabled(VirtQueue *vq, bool enabled);
 void virtio_queue_host_notifier_read(EventNotifier *n);
-void virtio_queue_aio_set_host_notifier_handler(VirtQueue *vq, AioContext *ctx,
-                                                VirtIOHandleAIOOutput handle_output);
+void virtio_queue_aio_attach_host_notifier(VirtQueue *vq, AioContext *ctx);
+void virtio_queue_aio_detach_host_notifier(VirtQueue *vq, AioContext *ctx);
 VirtQueue *virtio_vector_first_queue(VirtIODevice *vdev, uint16_t vector);
 VirtQueue *virtio_vector_next_queue(VirtQueue *vq);
 
@@ -378,4 +380,20 @@ static inline void virtio_set_started(VirtIODevice *vdev, bool started)
         vdev->started = started;
     }
 }
+
+static inline void virtio_set_disabled(VirtIODevice *vdev, bool disable)
+{
+    if (vdev->use_disabled_flag) {
+        vdev->disabled = disable;
+    }
+}
+
+static inline bool virtio_device_disabled(VirtIODevice *vdev)
+{
+    return unlikely(vdev->disabled || vdev->broken);
+}
+
+bool virtio_legacy_allowed(VirtIODevice *vdev);
+bool virtio_legacy_check_disabled(VirtIODevice *vdev);
+
 #endif