内存热迁移

digraph { fontname="Helvetica,Arial,sans-serif" //node [fontname="Helvetica,Arial,sans-serif"] //edge [fontname="Helvetica,Arial,sans-serif"] rankdir="LR" node [fontsize=10, shape=record, height=0.25] edge [fontsize=10] subgraph send { cluster=true; label="发起端"; qemu_savevm_state_header[label="1.qemu_savevm_state_header"]; qemu_savevm_send_ping[label="2.qemu_savevm_send_ping"]; qemu_savevm_state_setup[label="3.qemu_savevm_state_setup"]; migrate_set_state[label="4.migrate_set_state"]; migration_iteration_run[label="5.migration_iteration_run"];

migration_detect_error[label="6.migration_detect_error"];
migration_update_counters[label="7.migration_update_counters"];
migration_iteration_finish[label="8.migration_iteration_finish"];

migration_thread -> qemu_savevm_state_header
                 -> vmstate_save_state;
migration_thread -> qemu_savevm_send_ping;
migration_thread -> qemu_savevm_state_setup
                 -> ram_save_setup;
migration_thread -> migrate_set_state;

qemu_savevm_state_pending[label="5.1qemu_savevm_state_pending"];
qemu_savevm_state_iterate[label="5.2qemu_savevm_state_iterate"];
migration_completion[label="5.3migration_completion"];

vm_stop_force_state[label="5.3.1vm_stop_force_state"]
qemu_savevm_state_complete_precopy[label="5.3.2qemu_savevm_state_complete_precopy"]
cpu_synchronize_all_states[label="5.3.2.1cpu_synchronize_all_states"]
save_live_complete_precopy[label="5.3.2.2save_live_complete_precopy"]
vmstate_save[label="5.3.2.3vmstate_savey"]

migration_thread ->
     migration_iteration_run->qemu_savevm_state_pending
                            ->save_live_pending;
     migration_iteration_run->qemu_savevm_state_iterate
                            ->save_live_iterate;
     migration_iteration_run->
        migration_completion->vm_stop_force_state;
        migration_completion->qemu_savevm_state_complete_precopy;
        qemu_savevm_state_complete_precopy->cpu_synchronize_all_states;
        qemu_savevm_state_complete_precopy->save_live_complete_precopy;
        qemu_savevm_state_complete_precopy->vmstate_save;


migration_thread -> migration_detect_error
migration_thread -> migration_update_counters
migration_thread -> migration_iteration_finish

}

内存热迁移 [label=”内存热迁移”]
内存热迁移 -> cluster_send
-> d

内存热迁移 -> 接收端
}