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1 /* |
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2 * QEMU live migration |
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3 * |
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4 * Copyright IBM, Corp. 2008 |
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5 * |
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6 * Authors: |
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7 * Anthony Liguori <aliguori@us.ibm.com> |
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8 * |
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9 * This work is licensed under the terms of the GNU GPL, version 2. See |
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10 * the COPYING file in the top-level directory. |
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11 * |
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12 */ |
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13 |
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14 #ifndef QEMU_MIGRATION_H |
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15 #define QEMU_MIGRATION_H |
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16 |
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17 #define MIG_STATE_ERROR -1 |
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18 #define MIG_STATE_COMPLETED 0 |
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19 #define MIG_STATE_CANCELLED 1 |
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20 #define MIG_STATE_ACTIVE 2 |
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21 |
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22 typedef struct MigrationState MigrationState; |
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23 |
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24 struct MigrationState |
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25 { |
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26 /* FIXME: add more accessors to print migration info */ |
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27 void (*cancel)(MigrationState *s); |
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28 int (*get_status)(MigrationState *s); |
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29 void (*release)(MigrationState *s); |
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30 }; |
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31 |
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32 typedef struct FdMigrationState FdMigrationState; |
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33 |
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34 struct FdMigrationState |
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35 { |
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36 MigrationState mig_state; |
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37 int64_t bandwidth_limit; |
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38 QEMUFile *file; |
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39 int fd; |
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40 int detach; |
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41 int state; |
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42 int (*get_error)(struct FdMigrationState*); |
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43 int (*close)(struct FdMigrationState*); |
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44 int (*write)(struct FdMigrationState*, const void *, size_t); |
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45 void *opaque; |
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46 }; |
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47 |
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48 void qemu_start_incoming_migration(const char *uri); |
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49 |
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50 void do_migrate(int detach, const char *uri); |
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51 |
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52 void do_migrate_cancel(void); |
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53 |
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54 void do_migrate_set_speed(const char *value); |
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55 |
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56 void do_info_migrate(void); |
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57 |
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58 int exec_start_incoming_migration(const char *host_port); |
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59 |
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60 MigrationState *exec_start_outgoing_migration(const char *host_port, |
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61 int64_t bandwidth_limit, |
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62 int detach); |
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63 |
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64 int tcp_start_incoming_migration(const char *host_port); |
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65 |
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66 MigrationState *tcp_start_outgoing_migration(const char *host_port, |
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67 int64_t bandwidth_limit, |
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68 int detach); |
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69 |
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70 void migrate_fd_error(FdMigrationState *s); |
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71 |
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72 void migrate_fd_cleanup(FdMigrationState *s); |
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73 |
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74 void migrate_fd_put_notify(void *opaque); |
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75 |
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76 ssize_t migrate_fd_put_buffer(void *opaque, const void *data, size_t size); |
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77 |
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78 void migrate_fd_connect(FdMigrationState *s); |
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79 |
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80 void migrate_fd_put_ready(void *opaque); |
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81 |
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82 int migrate_fd_get_status(MigrationState *mig_state); |
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83 |
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84 void migrate_fd_cancel(MigrationState *mig_state); |
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85 |
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86 void migrate_fd_release(MigrationState *mig_state); |
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87 |
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88 void migrate_fd_wait_for_unfreeze(void *opaque); |
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89 |
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90 int migrate_fd_close(void *opaque); |
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91 |
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92 static inline FdMigrationState *migrate_to_fms(MigrationState *mig_state) |
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93 { |
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94 return container_of(mig_state, FdMigrationState, mig_state); |
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95 } |
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96 |
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97 #endif |