Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 40 insertions, 0 deletions

diff --git a/include/migration/colo.h b/include/migration/colo.h
new file mode 100644
index 000000000..768e1f04c
--- /dev/null
+++ b/include/migration/colo.h
@@ -0,0 +1,40 @@
+/*
+ * 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 "qapi/qapi-types-migration.h"
+
+enum colo_event {
+    COLO_EVENT_NONE,
+    COLO_EVENT_CHECKPOINT,
+    COLO_EVENT_FAILOVER,
+};
+
+void migrate_start_colo_process(MigrationState *s);
+bool migration_in_colo_state(void);
+
+/* loadvm */
+int migration_incoming_enable_colo(void);
+void migration_incoming_disable_colo(void);
+bool migration_incoming_colo_enabled(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(void);
+
+void colo_checkpoint_notify(void *opaque);
+#endif