-/* Copyright (c) 2007-2012. The SimGrid Team.
+/* Copyright (c) 2007-2014. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* \param name name of the host to create
* \param data some user data (may be NULL)
*/
-smx_host_t SIMIX_vm_create(const char *name, smx_host_t ind_phys_host)
+sg_host_t SIMIX_vm_create(const char *name, sg_host_t ind_phys_host)
{
/* Create surf associated resource */
- surf_vm_workstation_model->extension.vm_workstation.create(name, ind_phys_host);
+ surf_vm_model_create(name, ind_phys_host);
- smx_host_t smx_host = SIMIX_host_create(name, ind_phys_host, NULL);
+ SIMIX_host_create(name);
/* We will be able to register the VM to its physical host, so that we can promptly
* retrieve the list VMs on the physical host. */
- return smx_host;
-}
-
-
-smx_host_t SIMIX_pre_vm_create(smx_simcall_t simcall, const char *name, smx_host_t ind_phys_host)
-{
- return SIMIX_vm_create(name, ind_phys_host);
+ return SIMIX_host_get_by_name(name);
}
/* works for VMs and PMs */
-static long host_get_ramsize(smx_host_t vm, int *overcommit)
+static long host_get_ramsize(sg_host_t vm, int *overcommit)
{
s_ws_params_t params;
- surf_workstation_model->extension.workstation.get_params(vm, ¶ms);
+ surf_host_get_params(vm, ¶ms);
if (overcommit)
*overcommit = params.overcommit;
}
/* **** start a VM **** */
-static int __can_be_started(smx_host_t vm)
+static int __can_be_started(sg_host_t vm)
{
- smx_host_t pm = surf_vm_workstation_model->extension.vm_workstation.get_pm(vm);
+ sg_host_t pm = surf_vm_get_pm(vm);
int pm_overcommit = 0;
long pm_ramsize = host_get_ramsize(pm, &pm_overcommit);
}
long total_ramsize_of_vms = 0;
- xbt_dynar_t dyn_vms = surf_workstation_model->extension.workstation.get_vms(pm);
+ xbt_dynar_t dyn_vms = surf_host_get_vms(pm);
{
unsigned int cursor = 0;
- smx_host_t another_vm;
+ sg_host_t another_vm;
xbt_dynar_foreach(dyn_vms, cursor, another_vm) {
long another_vm_ramsize = host_get_ramsize(vm, NULL);
total_ramsize_of_vms += another_vm_ramsize;
return 1;
}
-void SIMIX_vm_start(smx_host_t ind_vm)
+void SIMIX_vm_start(sg_host_t ind_vm)
{
if (__can_be_started(ind_vm))
- SIMIX_vm_set_state(ind_vm, SURF_VM_STATE_RUNNING);
+ surf_host_set_state(surf_host_resource_priv(ind_vm),
+ (int)SURF_VM_STATE_RUNNING);
else
THROWF(vm_error, 0, "The VM %s cannot be started", SIMIX_host_get_name(ind_vm));
}
-
-void SIMIX_pre_vm_start(smx_simcall_t simcall, smx_host_t ind_vm)
+int SIMIX_vm_get_state(sg_host_t ind_vm)
{
- SIMIX_vm_start(ind_vm);
- SIMIX_simcall_answer(simcall);
+ return surf_host_get_state(surf_host_resource_priv(ind_vm));
}
-/* ***** set/get state of a VM ***** */
-void SIMIX_vm_set_state(smx_host_t ind_vm, int state)
+/**
+ * \brief Function to migrate a SIMIX VM host.
+ *
+ * \param host the vm host to migrate (a sg_host_t)
+ */
+void SIMIX_vm_migrate(sg_host_t ind_vm, sg_host_t ind_dst_pm)
{
- /* jump to vm_ws_set_state */
- surf_vm_workstation_model->extension.vm_workstation.set_state(ind_vm, state);
-}
+ /* precopy migration makes the VM temporally paused */
+ xbt_assert(SIMIX_vm_get_state(ind_vm) == SURF_VM_STATE_SUSPENDED);
-void SIMIX_pre_vm_set_state(smx_simcall_t simcall, smx_host_t ind_vm, int state)
-{
- SIMIX_vm_set_state(ind_vm, state);
+ /* jump to vm_ws_xigrate(). this will update the vm location. */
+ surf_vm_migrate(ind_vm, ind_dst_pm);
}
-int SIMIX_vm_get_state(smx_host_t ind_vm)
+/**
+ * \brief Encompassing simcall to prevent the removal of the src or the dst node at the end of a VM migration
+ * The simcall actually invokes the following calls:
+ * simcall_vm_set_affinity(vm, src_pm, 0);
+ * simcall_vm_migrate(vm, dst_pm);
+ * simcall_vm_resume(vm);
+ *
+ * It is called at the end of the migration_rx_fun function from msg/msg_vm.c
+ *
+ * \param vm VM to migrate
+ * \param src_pm Source physical host
+ * \param dst_pmt Destination physical host
+ */
+void SIMIX_vm_migratefrom_resumeto(sg_host_t vm, sg_host_t src_pm, sg_host_t dst_pm)
{
- return surf_vm_workstation_model->extension.vm_workstation.get_state(ind_vm);
-}
-
-int SIMIX_pre_vm_get_state(smx_simcall_t simcall, smx_host_t ind_vm)
-{
- return SIMIX_vm_get_state(ind_vm);
-}
+ /* deinstall the current affinity setting for the CPU */
+ SIMIX_vm_set_affinity(vm, src_pm, 0);
+ /* Update the vm location */
+ SIMIX_vm_migrate(vm, dst_pm);
+
+ /* Resume the VM */
+ smx_process_t self = SIMIX_process_self();
+ SIMIX_vm_resume(vm, self->simcall.issuer);
+}
/**
- * \brief Function to migrate a SIMIX VM host.
+ * \brief Function to get the physical host of the given SIMIX VM host.
*
- * \param host the vm host to migrate (a smx_host_t)
+ * \param host the vm host to get_phys_host (a sg_host_t)
*/
-void SIMIX_vm_migrate(smx_host_t ind_vm, smx_host_t ind_dst_pm)
+void *SIMIX_vm_get_pm(sg_host_t ind_vm)
{
- /* precopy migration makes the VM temporally paused */
- e_surf_vm_state_t state = SIMIX_vm_get_state(ind_vm);
- xbt_assert(state == SURF_VM_STATE_SUSPENDED);
-
- /* jump to vm_ws_migrate(). this will update the vm location. */
- surf_vm_workstation_model->extension.vm_workstation.migrate(ind_vm, ind_dst_pm);
+ /* jump to vm_ws_get_pm(). this will return the vm name. */
+ return surf_vm_get_pm(ind_vm);
}
-void SIMIX_pre_vm_migrate(smx_simcall_t simcall, smx_host_t ind_vm, smx_host_t ind_dst_pm)
+/**
+ * \brief Function to set the CPU bound of the given SIMIX VM host.
+ *
+ * \param host the vm host (a sg_host_t)
+ * \param bound bound (a double)
+ */
+void SIMIX_vm_set_bound(sg_host_t ind_vm, double bound)
{
- SIMIX_vm_migrate(ind_vm, ind_dst_pm);
- SIMIX_simcall_answer(simcall);
+ /* jump to vm_ws_set_vm_bound(). */
+ surf_vm_set_bound(ind_vm, bound);
}
-
/**
- * \brief Function to get the physical host of the given the SIMIX VM host.
+ * \brief Function to set the CPU affinity of the given SIMIX VM host.
*
- * \param host the vm host to get_phys_host (a smx_host_t)
+ * \param host the vm host (a sg_host_t)
+ * \param host the pm host (a sg_host_t)
+ * \param mask affinity mask (a unsigned long)
*/
-void *SIMIX_vm_get_pm(smx_host_t ind_vm)
+void SIMIX_vm_set_affinity(sg_host_t ind_vm, sg_host_t ind_pm, unsigned long mask)
{
- /* jump to vm_ws_get_pm(). this will return the vm name. */
- return surf_vm_workstation_model->extension.vm_workstation.get_pm(ind_vm);
-}
+ /* make sure this at the MSG layer. */
+ xbt_assert(SIMIX_vm_get_pm(ind_vm) == ind_pm);
-void *SIMIX_pre_vm_get_pm(smx_simcall_t simcall, smx_host_t ind_vm)
-{
- return SIMIX_vm_get_pm(ind_vm);
+ /* jump to vm_ws_set_vm_affinity(). */
+ surf_vm_set_affinity(ind_vm, ind_pm, mask);
}
/**
- * \brief Function to suspend a SIMIX VM host. This function stops the exection of the
+ * \brief Function to suspend a SIMIX VM host. This function stops the execution 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)
+ * \param host the vm host to suspend (a sg_host_t)
*/
-void SIMIX_vm_suspend(smx_host_t ind_vm, smx_process_t issuer)
+void SIMIX_vm_suspend(sg_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));
+ XBT_DEBUG("suspend VM(%s), where %d processes exist", name, xbt_swag_size(sg_host_simix(ind_vm)->process_list));
/* jump to vm_ws_suspend. The state will be set. */
- surf_vm_workstation_model->extension.vm_workstation.suspend(ind_vm);
+ surf_vm_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_swag_foreach_safe(smx_process, smx_process_safe, sg_host_simix(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)
+void simcall_HANDLER_vm_suspend(smx_simcall_t simcall, sg_host_t ind_vm)
{
- if (simcall->issuer->smx_host == ind_vm) {
+ if (simcall->issuer->host == ind_vm) {
XBT_ERROR("cannot suspend the VM where I run");
DIE_IMPOSSIBLE;
}
SIMIX_vm_suspend(ind_vm, simcall->issuer);
- /* without this, simcall_vm_suspend() does not return to the userland. why? */
- SIMIX_simcall_answer(simcall);
-
- XBT_DEBUG("SIMIX_pre_vm_suspend done");
+ XBT_DEBUG("simcall_HANDLER_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.
+ * VM. All the processes on this VM will run again.
*
- * \param host the vm host to resume (a smx_host_t)
+ * \param host the vm host to resume (a sg_host_t)
*/
-void SIMIX_vm_resume(smx_host_t ind_vm, smx_process_t issuer)
+void SIMIX_vm_resume(sg_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));
+ XBT_DEBUG("resume VM(%s), where %d processes exist", name, xbt_swag_size(sg_host_simix(ind_vm)->process_list));
/* jump to vm_ws_resume() */
- surf_vm_workstation_model->extension.vm_workstation.resume(ind_vm);
+ surf_vm_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_swag_foreach_safe(smx_process, smx_process_safe, sg_host_simix(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)
+void simcall_HANDLER_vm_resume(smx_simcall_t simcall, sg_host_t ind_vm)
{
SIMIX_vm_resume(ind_vm, simcall->issuer);
- SIMIX_simcall_answer(simcall);
}
* 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)
+ * \param host the vm host to save (a sg_host_t)
*/
-void SIMIX_vm_save(smx_host_t ind_vm, smx_process_t issuer)
+void SIMIX_vm_save(sg_host_t ind_vm, smx_process_t issuer)
{
const char *name = SIMIX_host_get_name(ind_vm);
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));
+ XBT_DEBUG("save VM(%s), where %d processes exist", name, xbt_swag_size(sg_host_simix(ind_vm)->process_list));
/* jump to vm_ws_save() */
- surf_vm_workstation_model->extension.vm_workstation.save(ind_vm);
+ surf_vm_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_swag_foreach_safe(smx_process, smx_process_safe, sg_host_simix(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)
+void simcall_HANDLER_vm_save(smx_simcall_t simcall, sg_host_t ind_vm)
{
SIMIX_vm_save(ind_vm, simcall->issuer);
-
- /* without this, simcall_vm_suspend() does not return to the userland. why? */
- SIMIX_simcall_answer(simcall);
}
/**
* \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.
+ * VM. All the processes on this VM will run again.
*
- * \param host the vm host to restore (a smx_host_t)
+ * \param host the vm host to restore (a sg_host_t)
*/
-void SIMIX_vm_restore(smx_host_t ind_vm, smx_process_t issuer)
+void SIMIX_vm_restore(sg_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));
+ XBT_DEBUG("restore VM(%s), where %d processes exist", name, xbt_swag_size(sg_host_simix(ind_vm)->process_list));
/* jump to vm_ws_restore() */
- surf_vm_workstation_model->extension.vm_workstation.resume(ind_vm);
+ surf_vm_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_swag_foreach_safe(smx_process, smx_process_safe, sg_host_simix(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)
+void simcall_HANDLER_vm_restore(smx_simcall_t simcall, sg_host_t ind_vm)
{
SIMIX_vm_restore(ind_vm, simcall->issuer);
- SIMIX_simcall_answer(simcall);
}
* 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)
+ * \param host the vm host to shutdown (a sg_host_t)
*/
-void SIMIX_vm_shutdown(smx_host_t ind_vm, smx_process_t issuer)
+void SIMIX_vm_shutdown(sg_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("%d processes in the VM", xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list));
+ XBT_DEBUG("shutdown %s", name);
+ XBT_DEBUG("%d processes in the VM", xbt_swag_size(sg_host_simix(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("shutdown %s", name);
+ xbt_swag_foreach_safe(smx_process, smx_process_safe, sg_host_simix(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 */
- SIMIX_vm_set_state(ind_vm, SURF_VM_STATE_CREATED);
+ surf_host_set_state(surf_host_resource_priv(ind_vm),
+ (int)SURF_VM_STATE_CREATED);
}
-void SIMIX_pre_vm_shutdown(smx_simcall_t simcall, smx_host_t ind_vm)
+void simcall_HANDLER_vm_shutdown(smx_simcall_t simcall, sg_host_t ind_vm)
{
SIMIX_vm_shutdown(ind_vm, simcall->issuer);
- SIMIX_simcall_answer(simcall);
}
/**
* \brief Function to destroy a SIMIX VM host.
*
- * \param host the vm host to destroy (a smx_host_t)
+ * \param host the vm host to destroy (a sg_host_t)
*/
-void SIMIX_vm_destroy(smx_host_t ind_vm)
+void SIMIX_vm_destroy(sg_host_t ind_vm)
{
/* this code basically performs a similar thing like SIMIX_host_destroy() */
xbt_assert((ind_vm != NULL), "Invalid parameters");
const char *hostname = SIMIX_host_get_name(ind_vm);
+ XBT_DEBUG("destroy %s", hostname);
+
/* this will call the registered callback function, i.e., SIMIX_host_destroy(). */
- xbt_lib_unset(host_lib, hostname, SIMIX_HOST_LEVEL, 1);
+ sg_host_simix_destroy(ind_vm);
/* jump to vm_ws_destroy(). The surf level resource will be freed. */
- surf_vm_workstation_model->extension.vm_workstation.destroy(ind_vm);
-}
-
-void SIMIX_pre_vm_destroy(smx_simcall_t simcall, smx_host_t ind_vm)
-{
- SIMIX_vm_destroy(ind_vm);
- SIMIX_simcall_answer(simcall);
+ surf_vm_destroy(ind_vm);
}
