diff --git a/qidl.h b/qidl.h
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+++ b/qidl.h
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+/*
+ * QEMU IDL Macros/stubs
+ *
+ * See docs/qidl.txt for usage information.
+ *
+ * Copyright IBM, Corp. 2012
+ *
+ * Authors:
+ *  Michael Roth    <mdroth@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPLv2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef QIDL_H
+#define QIDL_H
+
+#include <glib.h>
+#include "qapi/qapi-visit-core.h"
+#include "qapi/misc-qapi-visit.h"
+#include "qemu/object.h"
+#include "hw/qdev-properties.h"
+
+/* must be "called" in any C files that make use of QIDL-generated code */
+#define QIDL_ENABLE()
+
+#define QIDL_DATA_DECLARE(name) \
+    typedef struct QIDLData##name { \
+        void (*visitor)(Visitor *, struct name **, const char *, Error **); \
+        const char *schema_json_text; \
+        Object *schema_obj; \
+        Property *properties; \
+    } QIDLData##name;
+
+/* we pass the code through the preprocessor with QIDL_GEN defined to parse
+ * structures as they'd appear after preprocessing, and use the following
+ * definitions mostly to re-insert the initial macros/annotations so they
+ * stick around for the parser to process
+ */
+#ifdef QIDL_GEN
+
+#define QIDL(...) QIDL(__VA_ARGS__)
+#define QIDL_START(name, ...) QIDL_START(name, ##__VA_ARGS__)
+
+#else
+
+#define QIDL(...)
+#define QIDL_START_PUBLIC(name, ...) \
+    QIDL_DATA_DECLARE(name) \
+    extern QIDLData##name qidl_data_##name; \
+    void visit_type_##name(Visitor *, struct name **, const char *, Error **);
+#ifdef QIDL_ENABLED
+#define QIDL_START(name, ...) \
+    QIDL_DATA_DECLARE(name) \
+    static QIDLData##name qidl_data_##name; \
+    static void visit_type_##name(Visitor *, struct name **, const char *, Error **);
+#define QIDL_START_IMPLEMENTATION(name, ...) \
+    QIDLData##name qidl_data_##name;
+#else
+#define QIDL_START(name, ...)
+#define QIDL_START_IMPLEMENTATION(name,  ...)
+#endif /* QIDL_ENABLED */
+
+#endif /* QIDL_GEN */
+
+/* QIDL serialization annotations/markers
+ *
+ * q_standard: default/standard serialization handling for this type. this marker
+ *   does not need to be specified explicitly, and should in fact be left out if
+ *   the default handling is sufficient. in general, the default is to serialize
+ *   the field, except in case where we determine it does not need to be serialized
+ *   (such as by analyzing any serialization annotations provided as part of the
+ *   field's type declaration to determine if there is any guest-volatile state)
+ *
+ * q_immutable: state is fully restorable via device
+ *   [re-]initialization/realization
+ *
+ * q_derived: state can be fully reconstructed from other fields (and will be,
+ *   via [re-]initialization of the device or a separate hook)
+ *
+ * q_broken: state should (or possibly should) be saved, but isn't. mostly an aid
+ *   for device developers having issues with serialization of a particular
+ *   field, committed code should contain these except in special circumstances
+ *
+ * q_optional: <field> should only be serialized if the field by the name of
+ *   has_<field> is true
+ *
+ * q_elsewhere: state should be serialized, but is done so elsewhere (for
+ *   instance, by another device with a pointer to the same data)
+ *
+ * q_size(field): for static/dynamically-allocated arrays. specifies the field
+ *   in the structure containing the number of elements that should be
+ *   serialized. if argument is wrapped in parenthesis it is instead interpreted
+ *   as an expression that should be invaluated to determine the size. annotating
+ *   a field in this implies we wish to serialize it, so we also set q_standard
+ *   explicitly to override any default serialization policy for a struct's fields
+ *
+ * q_str: char* are automatically serialized as strings unless q_size() is
+ *   specified (since lacking a q_size() annotation it's understood that it's a
+ *   null-terminated string). But in the case of static-allocated char arrays,
+ *   where q_size() defaults to number of elements, or where q_size() is specified
+ *   explicitly (for whatever reason), but we still want the field serialized as
+ *   a string, (as opposed to the default behavior of treating it as an array/list),
+ *   the q_str annotation can be specified explicitly.
+ *
+ * char arrays
+ */
+#define q_standard QIDL(serialize, standard)
+#define q_immutable QIDL(serialize, immutable)
+#define q_derived QIDL(serialize, derived)
+#define q_broken QIDL(serialize, broken)
+#define q_optional QIDL(serialize, optional)
+#define q_elsewhere QIDL(serialize, elsewhere)
+#define q_size(...) q_standard QIDL(serialize, size_is, ##__VA_ARGS__)
+#define q_string QIDL(serialize, string)
+
+/* QIDL property annotations/markers
+ *
+ * q_property(<property name> [, <default value>]): specifies that field is a
+ *   qdev-style property. all properties of the struct are then accessible via
+ *   QIDL_PROPERTIES(<device name>) macro. this also implies q_immutable.
+ */
+#define q_property(name, ...) q_immutable QIDL(property, name, ##__VA_ARGS__)
+
+/* declare a QIDL-annotated structure, private to source file.
+ * generated code will be injected into the source file's compiled
+ * code
+ */
+#define QIDL_DECLARE(name, ...) \
+    QIDL_START(name, ##__VA_ARGS__) \
+    struct name
+
+/* declare a QIDL-annotated structure, publically accessible.
+ * source files that use/include this must be linked against the object
+ * containing the corresponding QIDL_IMPLEMENT_PUBLIC(name, ...) for the
+ * structure in question to have access to the generated code
+ */
+#define QIDL_DECLARE_PUBLIC(name, ...) \
+    QIDL_START_PUBLIC(name, ##__VA_ARGS__) \
+    struct name
+
+/* implement the QIDL structure that QIDL_DECLARE_PUBLIC(name) will
+ * reference. this should be done in a source file that
+ * QIDL_DECLARE_PUBLIC(name) users will link against.
+ */
+#define QIDL_IMPLEMENT_PUBLIC(name, ...) \
+    QIDL_START_IMPLEMENTATION(name, ##__VA_ARGS__)
+
+#define QIDL_VISIT_TYPE(name, v, s, f, e) \
+    g_assert(qidl_data_##name.visitor); \
+    qidl_data_##name.visitor(v, s, NULL, e)
+
+#define QIDL_SCHEMA_ADD_LINK(name, obj, path, errp) \
+    g_assert(qidl_data_##name.schema_obj); \
+    object_property_add_link(obj, path, "container", \
+                             &qidl_data_##name.schema_obj, errp)
+
+#define QIDL_PROPERTIES(name) \
+    qidl_data_##name.properties
+
+#endif
