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 #include "qapi/qapi-types-net.h"
  19
  20 /* migration/ram.c */
  21
  22 typedef enum PrecopyNotifyReason {
  23     PRECOPY_NOTIFY_SETUP = 0,
  24     PRECOPY_NOTIFY_BEFORE_BITMAP_SYNC = 1,
  25     PRECOPY_NOTIFY_AFTER_BITMAP_SYNC = 2,
  26     PRECOPY_NOTIFY_COMPLETE = 3,
  27     PRECOPY_NOTIFY_CLEANUP = 4,
  28     PRECOPY_NOTIFY_MAX = 5,
  29 } PrecopyNotifyReason;
  30
  31 typedef struct PrecopyNotifyData {
  32     enum PrecopyNotifyReason reason;
  33     Error **errp;
  34 } PrecopyNotifyData;
  35
  36 void precopy_infrastructure_init(void);
  37 void precopy_add_notifier(NotifierWithReturn *n);
  38 void precopy_remove_notifier(NotifierWithReturn *n);
  39 int precopy_notify(PrecopyNotifyReason reason, Error **errp);
  40 void precopy_enable_free_page_optimization(void);
  41
  42 void ram_mig_init(void);
  43 void qemu_guest_free_page_hint(void *addr, size_t len);
  44
  45 /* migration/block.c */
  46
  47 #ifdef CONFIG_LIVE_BLOCK_MIGRATION
  48 void blk_mig_init(void);
  49 #else
  50 static inline void blk_mig_init(void) {}
  51 #endif
  52
  53 AnnounceParameters *migrate_announce_params(void);
  54 /* migration/savevm.c */
  55
  56 void dump_vmstate_json_to_file(FILE *out_fp);
  57
  58 /* migration/migration.c */
  59 void migration_object_init(void);
  60 void migration_shutdown(void);
  61 bool migration_is_idle(void);
  62 bool migration_is_active(MigrationState *);
  63 void add_migration_state_change_notifier(Notifier *notify);
  64 void remove_migration_state_change_notifier(Notifier *notify);
  65 bool migration_in_setup(MigrationState *);
  66 bool migration_has_finished(MigrationState *);
  67 bool migration_has_failed(MigrationState *);
  68 /* ...and after the device transmission */
  69 bool migration_in_postcopy_after_devices(MigrationState *);
  70 void migration_global_dump(Monitor *mon);
  71 /* True if incomming migration entered POSTCOPY_INCOMING_DISCARD */
  72 bool migration_in_incoming_postcopy(void);
  73 /* True if background snapshot is active */
  74 bool migration_in_bg_snapshot(void);
  75
  76 /* migration/block-dirty-bitmap.c */
  77 void dirty_bitmap_mig_init(void);
  78
  79 #endif