Signed-off-by: Max Reitz <mreitz@redhat.com>
---
 include/qapi/qmp/qdict.h |  1 +
 qobject/qdict.c          | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/include/qapi/qmp/qdict.h b/include/qapi/qmp/qdict.h
index 2cc3e906f7..a6fb89302d 100644
--- a/include/qapi/qmp/qdict.h
+++ b/include/qapi/qmp/qdict.h
@@ -69,6 +69,7 @@ const char *qdict_get_try_str(const QDict *qdict, const char *key);
 
 void qdict_copy_default(QDict *dst, QDict *src, const char *key);
 void qdict_set_default_str(QDict *dst, const char *key, const char *val);
+void qdict_set_default_bool(QDict *dst, const char *key, bool val);
 
 QDict *qdict_clone_shallow(const QDict *src);
 void qdict_flatten(QDict *qdict);
diff --git a/qobject/qdict.c b/qobject/qdict.c
index d1997a0d8a..5c25da36b3 100644
--- a/qobject/qdict.c
+++ b/qobject/qdict.c
@@ -498,6 +498,19 @@ void qdict_set_default_str(QDict *dst, const char *key, const char *val)
     qdict_put_str(dst, key, val);
 }
 
+/**
+ * qdict_set_default_bool(): If no entry mapped by 'key' exists in
+ * 'dst' yet, a new QBool initialized by 'val' is put there.
+ */
+void qdict_set_default_bool(QDict *dst, const char *key, bool val)
+{
+    if (qdict_haskey(dst, key)) {
+        return;
+    }
+
+    qdict_put_bool(dst, key, val);
+}
+
 static void qdict_flatten_qdict(QDict *qdict, QDict *target,
                                 const char *prefix);
 
-- 
2.14.3