1 /* Copyright (c) 2015-2016. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "src/instr/instr_private.h"
7 #include "src/plugins/vm/VirtualMachineImpl.hpp"
8 #include "src/simix/smx_host_private.h"
9 #include "src/surf/cpu_cas01.hpp"
11 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_vm, "S4U virtual machines");
16 VirtualMachine::VirtualMachine(const char* name, s4u::Host* pm) : Host(name)
18 XBT_DEBUG("Create VM %s", name);
20 pimpl_vm_ = new vm::VirtualMachineImpl(this, pm);
21 /* Currently, a VM uses the network resource of its physical host */
22 pimpl_netpoint = pm->pimpl_netpoint;
23 // Create a VCPU for this VM
24 surf::CpuCas01* sub_cpu = dynamic_cast<surf::CpuCas01*>(pm->pimpl_cpu);
26 pimpl_cpu = surf_cpu_model_vm->createCpu(this, sub_cpu->getSpeedPeakList(), 1 /*cores*/);
27 if (sub_cpu->getPState() != 0)
28 pimpl_cpu->setPState(sub_cpu->getPState());
30 /* Make a process container */
31 extension_set<simgrid::simix::Host>(new simgrid::simix::Host());
33 if (TRACE_msg_vm_is_enabled()) {
34 container_t host_container = PJ_container_get(pm->cname());
35 PJ_container_new(name, INSTR_MSG_VM, host_container);
39 VirtualMachine::~VirtualMachine()
43 XBT_DEBUG("destroy %s", cname());
45 /* FIXME: this is really strange that everything fails if the next line is removed.
46 * This is as if we shared these data with the PM, which definitely should not be the case...
48 * We need to test that suspending a VM does not suspends the processes running on its PM, for example.
49 * Or we need to simplify this code enough to make it actually readable (but this sounds harder than testing)
51 extension_set<simgrid::simix::Host>(nullptr);
53 /* Don't free these things twice: they are the ones of my physical host */
54 pimpl_netpoint = nullptr;
57 bool VirtualMachine::isMigrating()
59 return pimpl_vm_->isMigrating;
61 double VirtualMachine::getRamsize()
63 return pimpl_vm_->params_.ramsize;
65 simgrid::s4u::Host* VirtualMachine::pm()
67 return pimpl_vm_->getPm();
70 /** @brief Retrieve a copy of the parameters of that VM/PM
71 * @details The ramsize and overcommit fields are used on the PM too */
72 void VirtualMachine::parameters(vm_params_t params)
74 pimpl_vm_->getParams(params);
76 /** @brief Sets the params of that VM/PM */
77 void VirtualMachine::setParameters(vm_params_t params)
79 simgrid::simix::kernelImmediate([&]() { pimpl_vm_->setParams(params); });
82 } // namespace simgrid