+/** @brief Opaque type describing a Virtual Machine.
+ * @ingroup msg_VMs
+ *
+ * All this is highly experimental and the interface will probably change in the future.
+ * Please don't depend on this yet (although testing is welcomed if you feel so).
+ * Usual lack of guaranty of any kind applies here, and is even increased.
+ *
+ */
+/* This function should not be called directly, but rather from MSG_vm_start_from_template that does not exist yet*/
+
+// TODO add VDI later
+XBT_PUBLIC(msg_vm_t) MSG_vm_create(msg_host_t location, const char *name,
+ int core_nb, int mem_cap, int net_cap);
+
+XBT_PUBLIC(void) MSG_vm_start(msg_vm_t);
+
+XBT_PUBLIC(int) MSG_vm_is_suspended(msg_vm_t);
+XBT_PUBLIC(int) MSG_vm_is_running(msg_vm_t);
+
+XBT_PUBLIC(const char*) MSG_vm_get_name(msg_vm_t);
+
+XBT_PUBLIC(void) MSG_vm_migrate(msg_vm_t vm, msg_host_t destination);
+
+/* Suspend the execution of the VM, but keep its state on memory. */
+XBT_PUBLIC(void) MSG_vm_suspend(msg_vm_t vm);
+XBT_PUBLIC(void) MSG_vm_resume(msg_vm_t vm);
+
+/* Save the VM state to a disk. */
+XBT_PUBLIC(void) MSG_vm_save(msg_vm_t vm);
+XBT_PUBLIC(void) MSG_vm_restore(msg_vm_t vm);
+
+/* Shutdown the guest operating system. */
+XBT_PUBLIC(void) MSG_vm_shutdown(msg_vm_t vm);
+
+XBT_PUBLIC(void) MSG_vm_destroy(msg_vm_t vm);
+
+XBT_PUBLIC(xbt_dynar_t) MSG_vms_as_dynar(void);
+
+/*
+void* MSG_process_get_property(msg_process_t, char* key)
+void MSG_process_set_property(msg_process_t, char* key, void* data)
+void MSG_vm_set_property(msg_vm_t, char* key, void* data)
+
+void MSG_vm_setMemoryUsed(msg_vm_t vm, double size);
+void MSG_vm_setCpuUsed(msg_vm_t vm, double inducedLoad);
+ // inducedLoad: un pourcentage (>100 si ca charge plus d'un coeur;
+ // <100 si c'est pas CPU intensive)
+ // Contraintes à poser:
+ // HOST_Power >= CpuUsedVm (\forall VM) + CpuUsedTask (\forall Task)
+ // VM_coreAmount >= Load de toutes les tasks
+*/
+
+ /*
+xbt_dynar_t<msg_vm_t> MSG_vm_get_list_from_host(msg_host_t)
+xbt_dynar_t<msg_vm_t> MSG_vm_get_list_from_hosts(msg_dynar_t<msg_host_t>)
++ des fonctions de filtrage sur les dynar
+*/