accel: register global_props like machine globals

global_props is only used for Xen xen_compat_props. It's a static
array of GlobalProperty, like machine globals in SET_MACHINE_COMPAT().
Let's register the globals the same way, without extra copy allocation.
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>
Message-Id: <20181204142023.15982-5-marcandre.lureau@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

accel/accel.c

@@ -34,6 +34,7 @@
 #include "qom/object.h"
 #include "qemu/error-report.h"
 #include "qemu/option.h"
+#include "qapi/error.h"
 
 static const TypeInfo accel_type = {
     .name = TYPE_ACCEL,
@@ -121,7 +122,13 @@ void configure_accelerator(MachineState *ms)
 void accel_register_compat_props(AccelState *accel)
 {
     AccelClass *class = ACCEL_GET_CLASS(accel);
-    register_compat_props_array(class->global_props);
+    GlobalProperty *prop = class->global_props;
+
+    for (; prop && prop->driver; prop++) {
+        /* Any compat_props must never cause error */
+        prop->errp = &error_abort;
+        qdev_prop_register_global(prop);
+    }
 }
 
 void accel_setup_post(MachineState *ms)

hw/core/qdev-properties.c

@@ -1180,27 +1180,6 @@ void qdev_prop_register_global(GlobalProperty *prop)
     global_props = g_list_append(global_props, prop);
 }
 
-void register_compat_prop(const char *driver,
-                          const char *property,
-                          const char *value)
-{
-    GlobalProperty *p = g_new0(GlobalProperty, 1);
-
-    /* Any compat_props must never cause error */
-    p->errp = &error_abort;
-    p->driver = driver;
-    p->property = property;
-    p->value = value;
-    qdev_prop_register_global(p);
-}
-
-void register_compat_props_array(GlobalProperty *prop)
-{
-    for (; prop && prop->driver; prop++) {
-        register_compat_prop(prop->driver, prop->property, prop->value);
-    }
-}
-
 void qdev_prop_register_global_list(GlobalProperty *props)
 {
     int i;

include/hw/qdev-properties.h

@@ -255,35 +255,6 @@ void qdev_prop_set_globals(DeviceState *dev);
 void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev,
                                     Property *prop, const char *value);
 
-/**
- * register_compat_prop:
- *
- * Register internal (not user-provided) global property, changing the
- * default value of a given property in a device type.  This can be used
- * for enabling machine-type compatibility or for enabling
- * accelerator-specific defaults in devices.
- *
- * The property values set using this function must be always valid and
- * never report setter errors, as the property will have
- * GlobalProperty::errp set to &error_abort.
- *
- * User-provided global properties should override internal global
- * properties, so callers of this function should ensure that it is
- * called before user-provided global properties are registered.
- *
- * @driver: Device type to be affected
- * @property: Property whose default value is going to be changed
- * @value: New default value for the property
- */
-void register_compat_prop(const char *driver, const char *property,
-                          const char *value);
-/*
- * register_compat_props_array(): using register_compat_prop(), which
- * only registers internal global properties (which has lower priority
- * than user-provided global properties)
- */
-void register_compat_props_array(GlobalProperty *prop);
-
 /**
  * qdev_property_add_static:
  * @dev: Device to add the property to.