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-migration.h"
  19 #include "qapi/qapi-types-net.h"
  20
  21 /* migration/ram.c */
  22
  23 typedef enum PrecopyNotifyReason {
  24     PRECOPY_NOTIFY_SETUP = 0,
  25     PRECOPY_NOTIFY_BEFORE_BITMAP_SYNC = 1,
  26     PRECOPY_NOTIFY_AFTER_BITMAP_SYNC = 2,
  27     PRECOPY_NOTIFY_COMPLETE = 3,
  28     PRECOPY_NOTIFY_CLEANUP = 4,
  29     PRECOPY_NOTIFY_MAX = 5,
  30 } PrecopyNotifyReason;
  31
  32 typedef struct PrecopyNotifyData {
  33     enum PrecopyNotifyReason reason;
  34     Error **errp;
  35 } PrecopyNotifyData;
  36
  37 void precopy_infrastructure_init(void);
  38 void precopy_add_notifier(NotifierWithReturn *n);
  39 void precopy_remove_notifier(NotifierWithReturn *n);
  40 int precopy_notify(PrecopyNotifyReason reason, Error **errp);
  41
  42 void ram_mig_init(void);
  43 void qemu_guest_free_page_hint(void *addr, size_t len);
  44 bool migrate_ram_is_ignored(RAMBlock *block);
  45
  46 /* migration/block.c */
  47
  48 #ifdef CONFIG_LIVE_BLOCK_MIGRATION
  49 void blk_mig_init(void);
  50 #else
  51 static inline void blk_mig_init(void) {}
  52 #endif
  53
  54 AnnounceParameters *migrate_announce_params(void);
  55 /* migration/savevm.c */
  56
  57 void dump_vmstate_json_to_file(FILE *out_fp);
  58
  59 /* migration/migration.c */
  60 void migration_object_init(void);
  61 void migration_shutdown(void);
  62 bool migration_is_idle(void);
  63 bool migration_is_active(MigrationState *);
  64 void migration_add_notifier(Notifier *notify,
  65                             void (*func)(Notifier *notifier, void *data));
  66 void migration_remove_notifier(Notifier *notify);
  67 void migration_call_notifiers(MigrationState *s);
  68 bool migration_in_setup(MigrationState *);
  69 bool migration_has_finished(MigrationState *);
  70 bool migration_has_failed(MigrationState *);
  71 /* ...and after the device transmission */
  72 bool migration_in_postcopy_after_devices(MigrationState *);
  73 /* True if incoming migration entered POSTCOPY_INCOMING_DISCARD */
  74 bool migration_in_incoming_postcopy(void);
  75 /* True if incoming migration entered POSTCOPY_INCOMING_ADVISE */
  76 bool migration_incoming_postcopy_advised(void);
  77 /* True if background snapshot is active */
  78 bool migration_in_bg_snapshot(void);
  79
  80 /* migration/block-dirty-bitmap.c */
  81 void dirty_bitmap_mig_init(void);
  82
  83 #endif