David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1 | /* |
| 2 | * QEMU live migration |
| 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 QEMU_MIGRATION_H |
| 15 | #define QEMU_MIGRATION_H |
| 16 | |
| 17 | #include "qemu-common.h" |
| 18 | |
| 19 | #define MIG_STATE_ERROR -1 |
| 20 | #define MIG_STATE_COMPLETED 0 |
| 21 | #define MIG_STATE_CANCELLED 1 |
| 22 | #define MIG_STATE_ACTIVE 2 |
| 23 | |
| 24 | typedef struct MigrationState MigrationState; |
| 25 | |
| 26 | struct MigrationState |
| 27 | { |
| 28 | /* FIXME: add more accessors to print migration info */ |
| 29 | void (*cancel)(MigrationState *s); |
| 30 | int (*get_status)(MigrationState *s); |
| 31 | void (*release)(MigrationState *s); |
| 32 | }; |
| 33 | |
| 34 | typedef struct FdMigrationState FdMigrationState; |
| 35 | |
| 36 | struct FdMigrationState |
| 37 | { |
| 38 | MigrationState mig_state; |
| 39 | int64_t bandwidth_limit; |
| 40 | QEMUFile *file; |
| 41 | int fd; |
| 42 | Monitor *mon_resume; |
| 43 | int state; |
| 44 | int (*get_error)(struct FdMigrationState*); |
| 45 | int (*close)(struct FdMigrationState*); |
| 46 | int (*write)(struct FdMigrationState*, const void *, size_t); |
| 47 | void *opaque; |
| 48 | }; |
| 49 | |
| 50 | void qemu_start_incoming_migration(const char *uri); |
| 51 | |
| 52 | void do_migrate(Monitor *mon, int detach, const char *uri); |
| 53 | |
| 54 | void do_migrate_cancel(Monitor *mon); |
| 55 | |
| 56 | void do_migrate_set_speed(Monitor *mon, const char *value); |
| 57 | |
| 58 | uint64_t migrate_max_downtime(void); |
| 59 | |
| 60 | void do_migrate_set_downtime(Monitor *mon, const char *value); |
| 61 | |
| 62 | void do_info_migrate(Monitor *mon); |
| 63 | |
| 64 | int exec_start_incoming_migration(const char *host_port); |
| 65 | |
| 66 | MigrationState *exec_start_outgoing_migration(const char *host_port, |
| 67 | int64_t bandwidth_limit, |
| 68 | int detach); |
| 69 | |
| 70 | int tcp_start_incoming_migration(const char *host_port); |
| 71 | |
| 72 | MigrationState *tcp_start_outgoing_migration(const char *host_port, |
| 73 | int64_t bandwidth_limit, |
| 74 | int detach); |
| 75 | |
| 76 | void migrate_fd_monitor_suspend(FdMigrationState *s); |
| 77 | |
| 78 | void migrate_fd_error(FdMigrationState *s); |
| 79 | |
| 80 | void migrate_fd_cleanup(FdMigrationState *s); |
| 81 | |
| 82 | void migrate_fd_put_notify(void *opaque); |
| 83 | |
| 84 | ssize_t migrate_fd_put_buffer(void *opaque, const void *data, size_t size); |
| 85 | |
| 86 | void migrate_fd_connect(FdMigrationState *s); |
| 87 | |
| 88 | void migrate_fd_put_ready(void *opaque); |
| 89 | |
| 90 | int migrate_fd_get_status(MigrationState *mig_state); |
| 91 | |
| 92 | void migrate_fd_cancel(MigrationState *mig_state); |
| 93 | |
| 94 | void migrate_fd_release(MigrationState *mig_state); |
| 95 | |
| 96 | void migrate_fd_wait_for_unfreeze(void *opaque); |
| 97 | |
| 98 | int migrate_fd_close(void *opaque); |
| 99 | |
| 100 | static inline FdMigrationState *migrate_to_fms(MigrationState *mig_state) |
| 101 | { |
| 102 | return container_of(mig_state, FdMigrationState, mig_state); |
| 103 | } |
| 104 | |
| 105 | #endif |