2 * COarse-grain LOck-stepping Virtual Machines for Non-stop Service (COLO)
3 * (a.k.a. Fault Tolerance or Continuous Replication)
5 * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
6 * Copyright (c) 2016 FUJITSU LIMITED
7 * Copyright (c) 2016 Intel Corporation
9 * This work is licensed under the terms of the GNU GPL, version 2 or
10 * later. See the COPYING file in the top-level directory.
14 #include "qemu/osdep.h"
15 #include <migration/colo.h>
22 static COLOInfo colo_info
;
24 static void colo_info_pre_save(void *opaque
)
28 s
->colo_requested
= migrate_colo_enabled();
31 static bool colo_info_need(void *opaque
)
33 return migrate_colo_enabled();
36 static const VMStateDescription colo_state
= {
39 .minimum_version_id
= 1,
40 .pre_save
= colo_info_pre_save
,
41 .needed
= colo_info_need
,
42 .fields
= (VMStateField
[]) {
43 VMSTATE_BOOL(colo_requested
, COLOInfo
),
48 void colo_info_init(void)
50 vmstate_register(NULL
, 0, &colo_state
, &colo_info
);
53 bool migration_incoming_enable_colo(void)
55 return colo_info
.colo_requested
;
58 void migration_incoming_exit_colo(void)
60 colo_info
.colo_requested
= false;