QEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
1.4 KiB
55 lines
1.4 KiB
/*
|
|
* 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);
|
|
bool migration_incoming_in_colo_state(void);
|
|
|
|
COLOMode get_colo_mode(void);
|
|
|
|
/* failover */
|
|
void colo_do_failover(void);
|
|
|
|
/*
|
|
* colo_checkpoint_delay_set
|
|
*
|
|
* Handles change of x-checkpoint-delay migration parameter, called from
|
|
* migrate_params_apply() to notify COLO module about the change.
|
|
*/
|
|
void colo_checkpoint_delay_set(void);
|
|
|
|
/*
|
|
* Starts COLO incoming process. Called from process_incoming_migration_co()
|
|
* after loading the state.
|
|
*
|
|
* Called with BQL locked, may temporary release BQL.
|
|
*/
|
|
void coroutine_fn colo_incoming_co(void);
|
|
|
|
void colo_shutdown(void);
|
|
#endif
|
|
|