void ipc_host_init(void)
{
ipc_port_t port;
/*
* Allocate and set up the two host ports.
*/
port = ipc_port_alloc_kernel();
if (port == IP_NULL)
panic("ipc_host_init");
ipc_kobject_set(port, (ipc_kobject_t) &realhost, IKOT_HOST);
realhost.host_self = port;
port = ipc_port_alloc_kernel();
if (port == IP_NULL)
panic("ipc_host_init");
ipc_kobject_set(port, (ipc_kobject_t) &realhost, IKOT_HOST_PRIV);
realhost.host_priv_self = port;
/*
* Set up ipc for default processor set.
*/
ipc_pset_init(&default_pset);
ipc_pset_enable(&default_pset);
/*
* And for master processor
*/
ipc_processor_init(master_processor);
}
void ipc_host_init(void)
{
ipc_port_t port;
int i;
lck_mtx_init(&realhost.lock, &host_notify_lock_grp, &host_notify_lock_attr);
/*
* Allocate and set up the two host ports.
*/
port = ipc_port_alloc_kernel();
if (port == IP_NULL)
panic("ipc_host_init");
ipc_kobject_set(port, (ipc_kobject_t) &realhost, IKOT_HOST_SECURITY);
kernel_set_special_port(&realhost, HOST_SECURITY_PORT,
ipc_port_make_send(port));
port = ipc_port_alloc_kernel();
if (port == IP_NULL)
panic("ipc_host_init");
ipc_kobject_set(port, (ipc_kobject_t) &realhost, IKOT_HOST);
kernel_set_special_port(&realhost, HOST_PORT,
ipc_port_make_send(port));
port = ipc_port_alloc_kernel();
if (port == IP_NULL)
panic("ipc_host_init");
ipc_kobject_set(port, (ipc_kobject_t) &realhost, IKOT_HOST_PRIV);
kernel_set_special_port(&realhost, HOST_PRIV_PORT,
ipc_port_make_send(port));
/* the rest of the special ports will be set up later */
for (i = FIRST_EXCEPTION; i < EXC_TYPES_COUNT; i++) {
realhost.exc_actions[i].port = IP_NULL;
}/* for */
/*
* Set up ipc for default processor set.
*/
ipc_pset_init(&pset0);
ipc_pset_enable(&pset0);
/*
* And for master processor
*/
ipc_processor_init(master_processor);
ipc_processor_enable(master_processor);
}
kern_return_t
processor_start(
processor_t processor)
{
processor_set_t pset;
thread_t thread;
kern_return_t result;
spl_t s;
if (processor == PROCESSOR_NULL || processor->processor_set == PROCESSOR_SET_NULL)
return (KERN_INVALID_ARGUMENT);
if (processor == master_processor) {
processor_t prev;
prev = thread_bind(processor);
thread_block(THREAD_CONTINUE_NULL);
result = cpu_start(processor->cpu_id);
thread_bind(prev);
return (result);
}
s = splsched();
pset = processor->processor_set;
pset_lock(pset);
if (processor->state != PROCESSOR_OFF_LINE) {
pset_unlock(pset);
splx(s);
return (KERN_FAILURE);
}
processor->state = PROCESSOR_START;
pset_unlock(pset);
splx(s);
/*
* Create the idle processor thread.
*/
if (processor->idle_thread == THREAD_NULL) {
result = idle_thread_create(processor);
if (result != KERN_SUCCESS) {
s = splsched();
pset_lock(pset);
processor->state = PROCESSOR_OFF_LINE;
pset_unlock(pset);
splx(s);
return (result);
}
}
/*
* If there is no active thread, the processor
* has never been started. Create a dedicated
* start up thread.
*/
if ( processor->active_thread == THREAD_NULL &&
processor->next_thread == THREAD_NULL ) {
result = kernel_thread_create((thread_continue_t)processor_start_thread, NULL, MAXPRI_KERNEL, &thread);
if (result != KERN_SUCCESS) {
s = splsched();
pset_lock(pset);
processor->state = PROCESSOR_OFF_LINE;
pset_unlock(pset);
splx(s);
return (result);
}
s = splsched();
thread_lock(thread);
thread->bound_processor = processor;
processor->next_thread = thread;
thread->state = TH_RUN;
thread_unlock(thread);
splx(s);
thread_deallocate(thread);
}
if (processor->processor_self == IP_NULL)
ipc_processor_init(processor);
result = cpu_start(processor->cpu_id);
if (result != KERN_SUCCESS) {
s = splsched();
pset_lock(pset);
processor->state = PROCESSOR_OFF_LINE;
pset_unlock(pset);
splx(s);
return (result);
}
ipc_processor_enable(processor);
return (KERN_SUCCESS);
}
