mirror of https://gitee.com/openkylin/qemu.git
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/*
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* COarse-grain LOck-stepping Virtual Machines for Non-stop Service (COLO)
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* (a.k.a. Fault Tolerance or Continuous Replication)
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*
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* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
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* Copyright (c) 2016 FUJITSU LIMITED
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* Copyright (c) 2016 Intel Corporation
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "sysemu/sysemu.h"
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#include "migration/colo.h"
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#include "trace.h"
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bool colo_supported(void)
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{
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return false;
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}
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bool migration_in_colo_state(void)
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{
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MigrationState *s = migrate_get_current();
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return (s->state == MIGRATION_STATUS_COLO);
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}
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static void colo_process_checkpoint(MigrationState *s)
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{
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qemu_mutex_lock_iothread();
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vm_start();
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qemu_mutex_unlock_iothread();
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trace_colo_vm_state_change("stop", "run");
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/* TODO: COLO checkpoint savevm loop */
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}
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void migrate_start_colo_process(MigrationState *s)
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{
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qemu_mutex_unlock_iothread();
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migrate_set_state(&s->state, MIGRATION_STATUS_ACTIVE,
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MIGRATION_STATUS_COLO);
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colo_process_checkpoint(s);
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qemu_mutex_lock_iothread();
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}
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