2 files changed, 35 insertions, 1 deletions
diff --git a/qapi/Makefile.objs b/qapi/Makefile.objs
index d14b769cff..2278970690 100644
--- a/qapi/Makefile.objs
+++ b/qapi/Makefile.objs
@@ -1,6 +1,6 @@
 util-obj-y = qapi-visit-core.o qapi-dealloc-visitor.o qmp-input-visitor.o
 util-obj-y += qmp-output-visitor.o qmp-registry.o qmp-dispatch.o
 util-obj-y += string-input-visitor.o string-output-visitor.o
-
 util-obj-y += opts-visitor.o
 util-obj-y += qmp-event.o
+util-obj-y += qapi-util.o
diff --git a/qapi/qapi-util.c b/qapi/qapi-util.c
new file mode 100644
index 0000000000..1d8fb96eff
--- /dev/null
+++ b/qapi/qapi-util.c
@@ -0,0 +1,34 @@
+/*
+ * QAPI util functions
+ *
+ * Authors:
+ *  Hu Tao       <hutao@cn.fujitsu.com>
+ *  Peter Lieven <pl@kamp.de>
+ * 
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#include "qemu-common.h"
+#include "qapi/error.h"
+#include "qapi/util.h"
+
+int qapi_enum_parse(const char *lookup[], const char *buf,
+                    int max, int def, Error **errp)
+{
+    int i;
+
+    if (!buf) {
+        return def;
+    }
+
+    for (i = 0; i < max; i++) {
+        if (!strcmp(buf, lookup[i])) {
+            return i;
+        }
+    }
+
+    error_setg(errp, "invalid parameter value: %s", buf);
+    return def;
+}