include/migration/misc.h

   1 /*
   2  * QEMU migration miscellaneus exported functions
   3  *
   4  * Copyright IBM, Corp. 2008
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2.  See
  10  * the COPYING file in the top-level directory.
  11  *
  12  */
  13
  14 #ifndef MIGRATION_MISC_H
  15 #define MIGRATION_MISC_H
  16
  17 #include "qemu/notify.h"
  18
  19 /* migration/ram.c */
  20
  21 void ram_mig_init(void);
  22
  23 /* migration/block.c */
  24
  25 #ifdef CONFIG_LIVE_BLOCK_MIGRATION
  26 void blk_mig_init(void);
  27 #else
  28 static inline void blk_mig_init(void) {}
  29 #endif
  30
  31 #define SELF_ANNOUNCE_ROUNDS 5
  32
  33 static inline
  34 int64_t self_announce_delay(int round)
  35 {
  36     assert(round < SELF_ANNOUNCE_ROUNDS && round > 0);
  37     /* delay 50ms, 150ms, 250ms, ... */
  38     return 50 + (SELF_ANNOUNCE_ROUNDS - round - 1) * 100;
  39 }
  40
  41 /* migration/savevm.c */
  42
  43 void dump_vmstate_json_to_file(FILE *out_fp);
  44
  45 /* migration/migration.c */
  46 void migration_object_init(void);
  47 void qemu_start_incoming_migration(const char *uri, Error **errp);
  48 bool migration_is_idle(void);
  49 void add_migration_state_change_notifier(Notifier *notify);
  50 void remove_migration_state_change_notifier(Notifier *notify);
  51 bool migration_in_setup(MigrationState *);
  52 bool migration_has_finished(MigrationState *);
  53 bool migration_has_failed(MigrationState *);
  54 /* ...and after the device transmission */
  55 bool migration_in_postcopy_after_devices(MigrationState *);
  56 void migration_only_migratable_set(void);
  57 void migration_global_dump(Monitor *mon);
  58
  59 #endif