+
+/**
+ * \brief Function to set the CPU affinity of the given SIMIX VM host.
+ *
+ * \param host the vm host (a smx_host_t)
+ * \param host the pm host (a smx_host_t)
+ * \param mask affinity mask (a unsigned long)
+ */
+void SIMIX_vm_set_affinity(smx_host_t ind_vm, smx_host_t ind_pm, unsigned long mask)
+{
+ /* make sure this at the MSG layer. */
+ xbt_assert(SIMIX_vm_get_pm(ind_vm) == ind_pm);
+
+ /* jump to vm_ws_set_vm_affinity(). */
+ surf_vm_workstation_set_affinity(ind_vm, ind_pm, mask);
+}
+
+void SIMIX_pre_vm_set_affinity(smx_simcall_t simcall, smx_host_t ind_vm, smx_host_t ind_pm, unsigned long mask)
+{
+ SIMIX_vm_set_affinity(ind_vm, ind_pm, mask);
+}
+
+
+/**
+ * \brief Function to suspend a SIMIX VM host. This function stops the exection of the
+ * VM. All the processes on this VM will pause. The state of the VM is
+ * preserved on memory. We can later resume it again.
+ *
+ * \param host the vm host to suspend (a smx_host_t)
+ */
+void SIMIX_vm_suspend(smx_host_t ind_vm, smx_process_t issuer)
+{
+ const char *name = SIMIX_host_get_name(ind_vm);
+
+ if (SIMIX_vm_get_state(ind_vm) != SURF_VM_STATE_RUNNING)
+ THROWF(vm_error, 0, "VM(%s) is not running", name);
+
+ XBT_DEBUG("suspend VM(%s), where %d processes exist", name, xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list));
+
+ /* jump to vm_ws_suspend. The state will be set. */
+ surf_vm_workstation_suspend(ind_vm);
+
+ smx_process_t smx_process, smx_process_safe;
+ xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(ind_vm)->process_list) {
+ XBT_DEBUG("suspend %s", smx_process->name);
+ SIMIX_process_suspend(smx_process, issuer);
+ }
+
+ XBT_DEBUG("suspend all processes on the VM done done");
+}
+
+void SIMIX_pre_vm_suspend(smx_simcall_t simcall, smx_host_t ind_vm)
+{
+ if (simcall->issuer->smx_host == ind_vm) {
+ XBT_ERROR("cannot suspend the VM where I run");
+ DIE_IMPOSSIBLE;
+ }
+
+ SIMIX_vm_suspend(ind_vm, simcall->issuer);
+
+ XBT_DEBUG("SIMIX_pre_vm_suspend done");
+}
+
+
+/**
+ * \brief Function to resume a SIMIX VM host. This function restart the execution of the
+ * VM. All the processes on this VM will run again.
+ *
+ * \param host the vm host to resume (a smx_host_t)
+ */
+void SIMIX_vm_resume(smx_host_t ind_vm, smx_process_t issuer)
+{
+ const char *name = SIMIX_host_get_name(ind_vm);
+
+ if (SIMIX_vm_get_state(ind_vm) != SURF_VM_STATE_SUSPENDED)
+ THROWF(vm_error, 0, "VM(%s) was not suspended", name);
+
+ XBT_DEBUG("resume VM(%s), where %d processes exist", name, xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list));
+
+ /* jump to vm_ws_resume() */
+ surf_vm_workstation_resume(ind_vm);
+
+ smx_process_t smx_process, smx_process_safe;
+ xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(ind_vm)->process_list) {
+ XBT_DEBUG("resume %s", smx_process->name);
+ SIMIX_process_resume(smx_process, issuer);
+ }
+}
+
+void SIMIX_pre_vm_resume(smx_simcall_t simcall, smx_host_t ind_vm)
+{
+ SIMIX_vm_resume(ind_vm, simcall->issuer);
+}
+
+
+/**
+ * \brief Function to save a SIMIX VM host.
+ * This function is the same as vm_suspend, but the state of the VM is saved to the disk, and not preserved on memory.
+ * We can later restore it again.
+ *
+ * \param host the vm host to save (a smx_host_t)
+ */
+void SIMIX_vm_save(smx_host_t ind_vm, smx_process_t issuer)
+{
+ const char *name = SIMIX_host_get_name(ind_vm);
+
+ if (SIMIX_vm_get_state(ind_vm) != SURF_VM_STATE_RUNNING)
+ THROWF(vm_error, 0, "VM(%s) is not running", name);
+
+
+ XBT_DEBUG("save VM(%s), where %d processes exist", name, xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list));
+
+ /* jump to vm_ws_save() */
+ surf_vm_workstation_save(ind_vm);
+
+ smx_process_t smx_process, smx_process_safe;
+ xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(ind_vm)->process_list) {
+ XBT_DEBUG("suspend %s", smx_process->name);
+ SIMIX_process_suspend(smx_process, issuer);
+ }
+}
+
+void SIMIX_pre_vm_save(smx_simcall_t simcall, smx_host_t ind_vm)
+{
+ SIMIX_vm_save(ind_vm, simcall->issuer);
+}
+
+
+/**
+ * \brief Function to restore a SIMIX VM host. This function restart the execution of the
+ * VM. All the processes on this VM will run again.
+ *
+ * \param host the vm host to restore (a smx_host_t)
+ */
+void SIMIX_vm_restore(smx_host_t ind_vm, smx_process_t issuer)
+{
+ const char *name = SIMIX_host_get_name(ind_vm);
+
+ if (SIMIX_vm_get_state(ind_vm) != SURF_VM_STATE_SAVED)
+ THROWF(vm_error, 0, "VM(%s) was not saved", name);
+
+ XBT_DEBUG("restore VM(%s), where %d processes exist", name, xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list));
+
+ /* jump to vm_ws_restore() */
+ surf_vm_workstation_resume(ind_vm);
+
+ smx_process_t smx_process, smx_process_safe;
+ xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(ind_vm)->process_list) {
+ XBT_DEBUG("resume %s", smx_process->name);
+ SIMIX_process_resume(smx_process, issuer);
+ }
+}
+
+void SIMIX_pre_vm_restore(smx_simcall_t simcall, smx_host_t ind_vm)
+{
+ SIMIX_vm_restore(ind_vm, simcall->issuer);
+}
+
+
+/**
+ * \brief Function to shutdown a SIMIX VM host. This function powers off the
+ * VM. All the processes on this VM will be killed. But, the state of the VM is
+ * preserved on memory. We can later start it again.
+ *
+ * \param host the vm host to shutdown (a smx_host_t)
+ */
+void SIMIX_vm_shutdown(smx_host_t ind_vm, smx_process_t issuer)
+{
+ const char *name = SIMIX_host_get_name(ind_vm);
+
+ if (SIMIX_vm_get_state(ind_vm) != SURF_VM_STATE_RUNNING)
+ THROWF(vm_error, 0, "VM(%s) is not running", name);
+
+ XBT_DEBUG("shutdown %s", name);
+ XBT_DEBUG("%d processes in the VM", xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list));
+
+ smx_process_t smx_process, smx_process_safe;
+ xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(ind_vm)->process_list) {
+ XBT_DEBUG("kill %s", smx_process->name);
+ SIMIX_process_kill(smx_process, issuer);
+ }
+
+ /* FIXME: we may have to do something at the surf layer, e.g., vcpu action */
+ surf_resource_set_state(surf_workstation_resource_priv(ind_vm),
+ (int)SURF_VM_STATE_CREATED);
+}
+
+void SIMIX_pre_vm_shutdown(smx_simcall_t simcall, smx_host_t ind_vm)
+{
+ SIMIX_vm_shutdown(ind_vm, simcall->issuer);
+}
+
+