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-rw-r--r--include/migration/vmstate.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
index 1fbfd099dd..b9ee563aa4 100644
--- a/include/migration/vmstate.h
+++ b/include/migration/vmstate.h
@@ -224,6 +224,7 @@ extern const VMStateInfo vmstate_info_unused_buffer;
 extern const VMStateInfo vmstate_info_tmp;
 extern const VMStateInfo vmstate_info_bitmap;
 extern const VMStateInfo vmstate_info_qtailq;
+extern const VMStateInfo vmstate_info_gtree;
 
 #define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0)
 /*
@@ -754,6 +755,45 @@ extern const VMStateInfo vmstate_info_qtailq;
     .start        = offsetof(_type, _next),                              \
 }
 
+/*
+ * For migrating a GTree whose key is a pointer to _key_type and the
+ * value, a pointer to _val_type
+ * The target tree must have been properly initialized
+ * _vmsd: Start address of the 2 element array containing the data vmsd
+ *        and the key vmsd, in that order
+ * _key_type: type of the key
+ * _val_type: type of the value
+ */
+#define VMSTATE_GTREE_V(_field, _state, _version, _vmsd,                       \
+                        _key_type, _val_type)                                  \
+{                                                                              \
+    .name         = (stringify(_field)),                                       \
+    .version_id   = (_version),                                                \
+    .vmsd         = (_vmsd),                                                   \
+    .info         = &vmstate_info_gtree,                                       \
+    .start        = sizeof(_key_type),                                         \
+    .size         = sizeof(_val_type),                                         \
+    .offset       = offsetof(_state, _field),                                  \
+}
+
+/*
+ * For migrating a GTree with direct key and the value a pointer
+ * to _val_type
+ * The target tree must have been properly initialized
+ * _vmsd: data vmsd
+ * _val_type: type of the value
+ */
+#define VMSTATE_GTREE_DIRECT_KEY_V(_field, _state, _version, _vmsd, _val_type) \
+{                                                                              \
+    .name         = (stringify(_field)),                                       \
+    .version_id   = (_version),                                                \
+    .vmsd         = (_vmsd),                                                   \
+    .info         = &vmstate_info_gtree,                                       \
+    .start        = 0,                                                         \
+    .size         = sizeof(_val_type),                                         \
+    .offset       = offsetof(_state, _field),                                  \
+}
+
 /* _f : field name
    _f_n : num of elements field_name
    _n : num of elements