migration/savevm.h

   1 /*
   2  * QEMU save vm functions
   3  *
   4  * Copyright (c) 2003-2008 Fabrice Bellard
   5  * Copyright (c) 2009-2017 Red Hat Inc
   6  *
   7  * Authors:
   8  *  Juan Quintela <quintela@redhat.com>
   9  *
  10  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  11  * See the COPYING file in the top-level directory.
  12  */
  13
  14 #ifndef MIGRATION_SAVEVM_H
  15 #define MIGRATION_SAVEVM_H
  16
  17 #define QEMU_VM_FILE_MAGIC           0x5145564d
  18 #define QEMU_VM_FILE_VERSION_COMPAT  0x00000002
  19 #define QEMU_VM_FILE_VERSION         0x00000003
  20
  21 #define QEMU_VM_EOF                  0x00
  22 #define QEMU_VM_SECTION_START        0x01
  23 #define QEMU_VM_SECTION_PART         0x02
  24 #define QEMU_VM_SECTION_END          0x03
  25 #define QEMU_VM_SECTION_FULL         0x04
  26 #define QEMU_VM_SUBSECTION           0x05
  27 #define QEMU_VM_VMDESCRIPTION        0x06
  28 #define QEMU_VM_CONFIGURATION        0x07
  29 #define QEMU_VM_COMMAND              0x08
  30 #define QEMU_VM_SECTION_FOOTER       0x7e
  31
  32 bool qemu_savevm_state_blocked(Error **errp);
  33 void qemu_savevm_state_setup(QEMUFile *f);
  34 void qemu_savevm_state_header(QEMUFile *f);
  35 int qemu_savevm_state_iterate(QEMUFile *f, bool postcopy);
  36 void qemu_savevm_state_cleanup(void);
  37 void qemu_savevm_state_complete_postcopy(QEMUFile *f);
  38 int qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only,
  39                                        bool inactivate_disks);
  40 void qemu_savevm_state_pending(QEMUFile *f, uint64_t max_size,
  41                                uint64_t *res_precopy_only,
  42                                uint64_t *res_compatible,
  43                                uint64_t *res_postcopy_only);
  44 void qemu_savevm_send_ping(QEMUFile *f, uint32_t value);
  45 void qemu_savevm_send_open_return_path(QEMUFile *f);
  46 int qemu_savevm_send_packaged(QEMUFile *f, const uint8_t *buf, size_t len);
  47 void qemu_savevm_send_postcopy_advise(QEMUFile *f);
  48 void qemu_savevm_send_postcopy_listen(QEMUFile *f);
  49 void qemu_savevm_send_postcopy_run(QEMUFile *f);
  50
  51 void qemu_savevm_send_postcopy_ram_discard(QEMUFile *f, const char *name,
  52                                            uint16_t len,
  53                                            uint64_t *start_list,
  54                                            uint64_t *length_list);
  55
  56 int qemu_loadvm_state(QEMUFile *f);
  57 void qemu_loadvm_state_cleanup(void);
  58
  59 #endif