+ kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
+ kernel::actor::simcall([this, issuer]() { pimpl_vm_->shutdown(issuer); });
+ on_shutdown(*this);
+}
+
+void VirtualMachine::destroy()
+{
+ auto destroy_code = [this]() {
+ /* First, terminate all processes on the VM if necessary */
+ shutdown();
+
+ XBT_DEBUG("destroy %s", get_cname());
+ on_destruction(*this);
+ /* Then, destroy the VM object */
+ kernel::actor::simcall([this]() {
+ get_vm_impl()->vm_destroy();
+ get_impl()->destroy();
+
+ /* Don't free these things twice: they are the ones of my physical host */
+ set_netpoint(nullptr);
+ delete this;
+ });
+ };
+
+ if (not this_actor::is_maestro() && this_actor::get_host() == this) {
+ XBT_VERB("Launch another actor on physical host %s to destroy my own VM: %s", get_pm()->get_cname(), get_cname());
+ simgrid::s4u::Actor::create(get_cname() + std::string("-vm_destroy"), get_pm(), destroy_code);
+ simgrid::s4u::this_actor::yield();
+ XBT_CRITICAL("I should be dead now!");
+ DIE_IMPOSSIBLE;
+ }
+
+ destroy_code();
+}
+
+simgrid::s4u::Host* VirtualMachine::get_pm() const
+{
+ return pimpl_vm_->get_physical_host();
+}
+
+VirtualMachine* VirtualMachine::set_pm(simgrid::s4u::Host* pm)
+{
+ kernel::actor::simcall([this, pm]() { pimpl_vm_->set_physical_host(pm); });
+ return this;
+}
+
+VirtualMachine::State VirtualMachine::get_state() const
+{
+ return kernel::actor::simcall([this]() { return pimpl_vm_->get_state(); });
+}
+
+size_t VirtualMachine::get_ramsize() const
+{
+ return pimpl_vm_->get_ramsize();
+}
+
+VirtualMachine* VirtualMachine::set_ramsize(size_t ramsize)
+{
+ pimpl_vm_->set_ramsize(ramsize);
+ return this;
+}
+/** @brief Set a CPU bound for a given VM.
+ * @ingroup msg_VMs
+ *
+ * 1. Note that in some cases MSG_task_set_bound() may not intuitively work for VMs.
+ *
+ * For example,
+ * On PM0, there are Task1 and VM0.
+ * On VM0, there is Task2.
+ * Now we bound 75% to Task1\@PM0 and bound 25% to Task2\@VM0.
+ * Then,
+ * Task1\@PM0 gets 50%.
+ * Task2\@VM0 gets 25%.
+ * This is NOT 75% for Task1\@PM0 and 25% for Task2\@VM0, respectively.
+ *
+ * This is because a VM has the dummy CPU action in the PM layer. Putting a task on the VM does not affect the bound of
+ * the dummy CPU action. The bound of the dummy CPU action is unlimited.
+ *
+ * There are some solutions for this problem. One option is to update the bound of the dummy CPU action automatically.
+ * It should be the sum of all tasks on the VM. But, this solution might be costly, because we have to scan all tasks
+ * on the VM in share_resource() or we have to trap both the start and end of task execution.
+ *
+ * The current solution is to use setBound(), which allows us to directly set the bound of the dummy CPU action.
+ *
+ * 2. Note that bound == 0 means no bound (i.e., unlimited). But, if a host has multiple CPU cores, the CPU share of a
+ * computation task (or a VM) never exceeds the capacity of a CPU core.
+ */
+VirtualMachine* VirtualMachine::set_bound(double bound)
+{
+ kernel::actor::simcall([this, bound]() { pimpl_vm_->set_bound(bound); });
+ return this;
+}
+
+void VirtualMachine::start_migration() const
+{
+ pimpl_vm_->start_migration();
+ on_migration_start(*this);
+}
+
+void VirtualMachine::end_migration() const
+{
+ pimpl_vm_->end_migration();
+ on_migration_end(*this);