hw: apply accel compat properties without touching globals

Instead of registering compat properties as globals, let's keep them
in their own array, to avoid mixing with user globals.

Introduce object_apply_global_props() function, to apply compatibility
properties from a GPtrArray.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>

3 files changed, 14 insertions, 3 deletions

diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 92851e55df..84e612f473 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -267,6 +267,16 @@ typedef struct GlobalProperty {
     Error **errp;
 } GlobalProperty;
 
+static inline void
+compat_props_add(GPtrArray *arr,
+                 GlobalProperty props[], size_t nelem)
+{
+    int i;
+    for (i = 0; i < nelem; i++) {
+        g_ptr_array_add(arr, (void *)&props[i]);
+    }
+}
+
 /*** Board API.  This should go away once we have a machine config file.  ***/
 
 DeviceState *qdev_create(BusState *bus, const char *name);
diff --git a/include/qom/object.h b/include/qom/object.h
index bcae3f4951..e0262962b5 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -675,6 +675,9 @@ Object *object_new_with_propv(const char *typename,
                               Error **errp,
                               va_list vargs);
 
+void object_apply_global_props(Object *obj, const GPtrArray *props,
+                               Error **errp);
+
 /**
  * object_set_props:
  * @obj: the object instance to set properties on
diff --git a/include/sysemu/accel.h b/include/sysemu/accel.h
index 637358f430..f331d128e9 100644
--- a/include/sysemu/accel.h
+++ b/include/sysemu/accel.h
@@ -49,7 +49,7 @@ typedef struct AccelClass {
      * global properties may be overridden by machine-type
      * compat_props or user-provided global properties.
      */
-    GlobalProperty *global_props;
+    GPtrArray *compat_props;
 } AccelClass;
 
 #define TYPE_ACCEL "accel"
@@ -67,8 +67,6 @@ typedef struct AccelClass {
 extern unsigned long tcg_tb_size;
 
 void configure_accelerator(MachineState *ms);
-/* Register accelerator specific global properties */
-void accel_register_compat_props(AccelState *accel);
 /* Called just before os_setup_post (ie just before drop OS privs) */
 void accel_setup_post(MachineState *ms);