LXR qemu/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
  22typedef 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
  31typedef struct PrecopyNotifyData {
  32    enum PrecopyNotifyReason reason;
  33    Error **errp;
  34} PrecopyNotifyData;
  35
  36void precopy_infrastructure_init(void);
  37void precopy_add_notifier(NotifierWithReturn *n);
  38void precopy_remove_notifier(NotifierWithReturn *n);
  39int precopy_notify(PrecopyNotifyReason reason, Error **errp);
  40void precopy_enable_free_page_optimization(void);
  41
  42void ram_mig_init(void);
  43void qemu_guest_free_page_hint(void *addr, size_t len);
  44
  45/* migration/block.c */
  46
  47#ifdef CONFIG_LIVE_BLOCK_MIGRATION
  48void blk_mig_init(void);
  49#else
  50static inline void blk_mig_init(void) {}
  51#endif
  52
  53AnnounceParameters *migrate_announce_params(void);
  54/* migration/savevm.c */
  55
  56void dump_vmstate_json_to_file(FILE *out_fp);
  57
  58/* migration/migration.c */
  59void migration_object_init(void);
  60void migration_shutdown(void);
  61bool migration_is_idle(void);
  62bool migration_is_active(MigrationState *);
  63void add_migration_state_change_notifier(Notifier *notify);
  64void remove_migration_state_change_notifier(Notifier *notify);
  65bool migration_in_setup(MigrationState *);
  66bool migration_has_finished(MigrationState *);
  67bool migration_has_failed(MigrationState *);
  68/* ...and after the device transmission */
  69bool migration_in_postcopy_after_devices(MigrationState *);
  70void migration_global_dump(Monitor *mon);
  71/* True if incomming migration entered POSTCOPY_INCOMING_DISCARD */
  72bool migration_in_incoming_postcopy(void);
  73/* True if background snapshot is active */
  74bool migration_in_bg_snapshot(void);
  75
  76/* migration/block-dirty-bitmap.c */
  77void dirty_bitmap_mig_init(void);
  78
  79#endif
  80