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 41 void ram_mig_init(void); 42 void qemu_guest_free_page_hint(void *addr, size_t len); 43 bool migrate_ram_is_ignored(RAMBlock *block); 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 /* True if incoming migration entered POSTCOPY_INCOMING_DISCARD */ 71 bool migration_in_incoming_postcopy(void); 72 /* True if incoming migration entered POSTCOPY_INCOMING_ADVISE */ 73 bool migration_incoming_postcopy_advised(void); 74 /* True if background snapshot is active */ 75 bool migration_in_bg_snapshot(void); 76 77 /* migration/block-dirty-bitmap.c */ 78 void dirty_bitmap_mig_init(void); 79 80 #endif 81