qdev: Fold state enum into bool realized

Whether the device was initialized or not is QOM-level information and
currently unused. Drop it from device. This leaves the boolean state of
whether or not DeviceClass::init was called or not, a.k.a. "realized".
Suggested-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/qdev-addr.c

@@ -40,7 +40,7 @@ static void set_taddr(Object *obj, Visitor *v, void *opaque,
     Error *local_err = NULL;
     int64_t value;
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }

hw/qdev-core.h

@@ -8,11 +8,6 @@
 #include "hw/irq.h"
 #include "qapi/error.h"
 
-enum DevState {
-    DEV_STATE_CREATED = 1,
-    DEV_STATE_INITIALIZED,
-};
-
 enum {
     DEV_NVECTORS_UNSPECIFIED = -1,
 };
@@ -49,13 +44,20 @@ typedef struct DeviceClass {
     const char *bus_type;
 } DeviceClass;
 
-/* This structure should not be accessed directly.  We declare it here
-   so that it can be embedded in individual device state structures.  */
+/**
+ * DeviceState:
+ * @realized: Indicates whether the device has been fully constructed.
+ *
+ * This structure should not be accessed directly.  We declare it here
+ * so that it can be embedded in individual device state structures.
+ */
 struct DeviceState {
+    /*< private >*/
     Object parent_obj;
+    /*< public >*/
 
     const char *id;
-    enum DevState state;
+    bool realized;
     QemuOpts *opts;
     int hotplugged;
     BusState *parent_bus;

hw/qdev-properties-system.c

@@ -42,7 +42,7 @@ static void set_pointer(Object *obj, Visitor *v, Property *prop,
     char *str;
     int ret;
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -254,7 +254,7 @@ static void set_vlan(Object *obj, Visitor *v, void *opaque,
     int32_t id;
     NetClientState *hubport;
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }

hw/qdev-properties.c

@@ -32,7 +32,7 @@ static void set_enum(Object *obj, Visitor *v, void *opaque,
     Property *prop = opaque;
     int *ptr = qdev_get_prop_ptr(dev, prop);
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -85,7 +85,7 @@ static void set_bit(Object *obj, Visitor *v, void *opaque,
     Error *local_err = NULL;
     bool value;
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -125,7 +125,7 @@ static void set_uint8(Object *obj, Visitor *v, void *opaque,
     Property *prop = opaque;
     uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -192,7 +192,7 @@ static void set_uint16(Object *obj, Visitor *v, void *opaque,
     Property *prop = opaque;
     uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -225,7 +225,7 @@ static void set_uint32(Object *obj, Visitor *v, void *opaque,
     Property *prop = opaque;
     uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -250,7 +250,7 @@ static void set_int32(Object *obj, Visitor *v, void *opaque,
     Property *prop = opaque;
     int32_t *ptr = qdev_get_prop_ptr(dev, prop);
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -323,7 +323,7 @@ static void set_uint64(Object *obj, Visitor *v, void *opaque,
     Property *prop = opaque;
     uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -413,7 +413,7 @@ static void set_string(Object *obj, Visitor *v, void *opaque,
     Error *local_err = NULL;
     char *str;
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -477,7 +477,7 @@ static void set_mac(Object *obj, Visitor *v, void *opaque,
     int i, pos;
     char *str, *p;
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -569,7 +569,7 @@ static void set_pci_devfn(Object *obj, Visitor *v, void *opaque,
     Error *local_err = NULL;
     char *str;
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -640,7 +640,7 @@ static void set_blocksize(Object *obj, Visitor *v, void *opaque,
     const int64_t min = 512;
     const int64_t max = 32768;
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -708,7 +708,7 @@ static void set_pci_host_devaddr(Object *obj, Visitor *v, void *opaque,
     unsigned long dom = 0, bus = 0;
     unsigned int slot = 0, func = 0;
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }

hw/qdev.c

@@ -151,7 +151,7 @@ int qdev_init(DeviceState *dev)
     DeviceClass *dc = DEVICE_GET_CLASS(dev);
     int rc;
 
-    assert(dev->state == DEV_STATE_CREATED);
+    assert(!dev->realized);
 
     rc = dc->init(dev);
     if (rc < 0) {
@@ -174,7 +174,7 @@ int qdev_init(DeviceState *dev)
                                        dev->instance_id_alias,
                                        dev->alias_required_for_version);
     }
-    dev->state = DEV_STATE_INITIALIZED;
+    dev->realized = true;
     if (dev->hotplugged) {
         device_reset(dev);
     }
@@ -184,7 +184,7 @@ int qdev_init(DeviceState *dev)
 void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
                                  int required_for_version)
 {
-    assert(dev->state == DEV_STATE_CREATED);
+    assert(!dev->realized);
     dev->instance_id_alias = alias_id;
     dev->alias_required_for_version = required_for_version;
 }
@@ -546,7 +546,7 @@ static void qdev_set_legacy_property(Object *obj, Visitor *v, void *opaque,
     char *ptr = NULL;
     int ret;
 
-    if (dev->state != DEV_STATE_CREATED) {
+    if (dev->realized) {
         error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
@@ -653,7 +653,7 @@ static void device_initfn(Object *obj)
     }
 
     dev->instance_id_alias = -1;
-    dev->state = DEV_STATE_CREATED;
+    dev->realized = false;
 
     class = object_get_class(OBJECT(dev));
     do {
@@ -676,7 +676,7 @@ static void device_finalize(Object *obj)
     BusState *bus;
     DeviceClass *dc = DEVICE_GET_CLASS(dev);
 
-    if (dev->state == DEV_STATE_INITIALIZED) {
+    if (dev->realized) {
         while (dev->num_child_bus) {
             bus = QLIST_FIRST(&dev->child_bus);
             qbus_free(bus);