1 files changed, 39 insertions, 0 deletions
diff --git a/include/hw/vmstate-if.h b/include/hw/vmstate-if.h
new file mode 100644
index 000000000..52df571d1
--- /dev/null
+++ b/include/hw/vmstate-if.h
@@ -0,0 +1,39 @@
+/*
+ * VMState interface
+ *
+ * Copyright (c) 2009-2019 Red Hat Inc
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef VMSTATE_IF_H
+#define VMSTATE_IF_H
+
+#include "qom/object.h"
+
+#define TYPE_VMSTATE_IF "vmstate-if"
+
+typedef struct VMStateIfClass VMStateIfClass;
+DECLARE_CLASS_CHECKERS(VMStateIfClass, VMSTATE_IF,
+                       TYPE_VMSTATE_IF)
+#define VMSTATE_IF(obj)                             \
+    INTERFACE_CHECK(VMStateIf, (obj), TYPE_VMSTATE_IF)
+
+typedef struct VMStateIf VMStateIf;
+
+struct VMStateIfClass {
+    InterfaceClass parent_class;
+
+    char * (*get_id)(VMStateIf *obj);
+};
+
+static inline char *vmstate_if_get_id(VMStateIf *vmif)
+{
+    if (!vmif) {
+        return NULL;
+    }
+
+    return VMSTATE_IF_GET_CLASS(vmif)->get_id(vmif);
+}
+
+#endif /* VMSTATE_IF_H */