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diff --git a/include/migration/colo.h b/include/migration/colo.h
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+/*
+ * COarse-grain LOck-stepping Virtual Machines for Non-stop Service (COLO)
+ * (a.k.a. Fault Tolerance or Continuous Replication)
+ *
+ * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
+ * Copyright (c) 2016 FUJITSU LIMITED
+ * Copyright (c) 2016 Intel Corporation
+ *
+ * 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 QEMU_COLO_H
+#define QEMU_COLO_H
+
+#include "qemu-common.h"
+#include "migration/migration.h"
+#include "qemu/coroutine_int.h"
+#include "qemu/thread.h"
+#include "qemu/main-loop.h"
+
+bool colo_supported(void);
+void colo_info_init(void);
+
+void migrate_start_colo_process(MigrationState *s);
+bool migration_in_colo_state(void);
+
+/* loadvm */
+bool migration_incoming_enable_colo(void);
+void migration_incoming_exit_colo(void);
+void *colo_process_incoming_thread(void *opaque);
+bool migration_incoming_in_colo_state(void);
+
+COLOMode get_colo_mode(void);
+
+/* failover */
+void colo_do_failover(MigrationState *s);
+#endif