1 files changed, 10 insertions, 0 deletions
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 53488153fd..ae317286a4 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -221,11 +221,21 @@ struct BusState {
     QLIST_ENTRY(BusState) sibling;
 };
 
+/**
+ * Property:
+ * @set_default: true if the default value should be set from @defval,
+ *    in which case @info->set_default_value must not be NULL
+ *    (if false then no default value is set by the property system
+ *     and the field retains whatever value it was given by instance_init).
+ * @defval: default value for the property. This is used only if @set_default
+ *     is true.
+ */
 struct Property {
     const char   *name;
     const PropertyInfo *info;
     ptrdiff_t    offset;
     uint8_t      bitnr;
+    bool         set_default;
     union {
         int64_t i;
         uint64_t u;