b35ebdf076
Postcopy migration of dirty bitmaps. Only named dirty bitmaps are migrated. If destination qemu is already containing a dirty bitmap with the same name as a migrated bitmap (for the same node), then, if their granularities are the same the migration will be done, otherwise the error will be generated. If destination qemu doesn't contain such bitmap it will be created. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-id: 20180313180320.339796-12-vsementsov@virtuozzo.com [Changed '+' to '*' as per list discussion. --js] Signed-off-by: John Snow <jsnow@redhat.com>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
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* QEMU migration miscellaneus exported functions
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*
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* Copyright IBM, Corp. 2008
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef MIGRATION_MISC_H
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#define MIGRATION_MISC_H
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#include "qemu/notify.h"
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/* migration/ram.c */
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void ram_mig_init(void);
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/* migration/block.c */
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#ifdef CONFIG_LIVE_BLOCK_MIGRATION
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void blk_mig_init(void);
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#else
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static inline void blk_mig_init(void) {}
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#endif
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#define SELF_ANNOUNCE_ROUNDS 5
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static inline
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int64_t self_announce_delay(int round)
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{
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assert(round < SELF_ANNOUNCE_ROUNDS && round > 0);
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/* delay 50ms, 150ms, 250ms, ... */
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return 50 + (SELF_ANNOUNCE_ROUNDS - round - 1) * 100;
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}
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/* migration/savevm.c */
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void dump_vmstate_json_to_file(FILE *out_fp);
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/* migration/migration.c */
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void migration_object_init(void);
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void migration_object_finalize(void);
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void qemu_start_incoming_migration(const char *uri, Error **errp);
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bool migration_is_idle(void);
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void add_migration_state_change_notifier(Notifier *notify);
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void remove_migration_state_change_notifier(Notifier *notify);
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bool migration_in_setup(MigrationState *);
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bool migration_has_finished(MigrationState *);
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bool migration_has_failed(MigrationState *);
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/* ...and after the device transmission */
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bool migration_in_postcopy_after_devices(MigrationState *);
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void migration_global_dump(Monitor *mon);
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/* migration/block-dirty-bitmap.c */
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void dirty_bitmap_mig_init(void);
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#endif
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