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This QEMU_VM_COMMAND sub-command and its switchover_start SaveVMHandler is used to mark the switchover point in main migration stream. It can be used to inform the destination that all pre-switchover main migration stream data has been sent/received so it can start to process post-switchover data that it might have received via other migration channels like the multifd ones. Add also the relevant MigrationState bit stream compatibility property and its hw_compat entry. Reviewed-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Zhang Chen <zhangckid@gmail.com> # for the COLO part Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com> Link: https://lore.kernel.org/qemu-devel/311be6da85fc7e49a7598684d80aa631778dcbce.1741124640.git.maciej.szmigiero@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
29 lines
625 B
C
29 lines
625 B
C
/*
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* QEMU public migration capabilities
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*
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* Copyright (c) 2012-2023 Red Hat Inc
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_MIGRATION_CLIENT_OPTIONS_H
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#define QEMU_MIGRATION_CLIENT_OPTIONS_H
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/* properties */
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bool migrate_send_switchover_start(void);
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/* capabilities */
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bool migrate_background_snapshot(void);
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bool migrate_dirty_limit(void);
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bool migrate_postcopy_ram(void);
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bool migrate_switchover_ack(void);
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/* parameters */
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MigMode migrate_mode(void);
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uint64_t migrate_vcpu_dirty_limit_period(void);
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#endif
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