static int sched_start_init(void) {
struct schedee *current;
int err;
current = boot_thread_create(); /* 'init' thread ID=1 */
assert(current != NULL);
err = sched_init(current);
if (err) {
return err;
}
err = idle_thread_create(); /* idle thread always has ID=0 */
return err;
}
/*
* Now running in a thread. Kick off other services,
* invoke user bootstrap, enter pageout loop.
*/
static void
kernel_bootstrap_thread(void)
{
processor_t processor = current_processor();
#define kernel_bootstrap_thread_kprintf(x...) /* kprintf("kernel_bootstrap_thread: " x) */
kernel_bootstrap_thread_log("idle_thread_create");
/*
* Create the idle processor thread.
*/
idle_thread_create(processor);
/*
* N.B. Do not stick anything else
* before this point.
*
* Start up the scheduler services.
*/
kernel_bootstrap_thread_log("sched_startup");
sched_startup();
/*
* Thread lifecycle maintenance (teardown, stack allocation)
*/
kernel_bootstrap_thread_log("thread_daemon_init");
thread_daemon_init();
/* Create kernel map entry reserve */
vm_kernel_reserved_entry_init();
/*
* Thread callout service.
*/
kernel_bootstrap_thread_log("thread_call_initialize");
thread_call_initialize();
/*
* Remain on current processor as
* additional processors come online.
*/
kernel_bootstrap_thread_log("thread_bind");
thread_bind(processor);
/*
* Initialize ipc thread call support.
*/
kernel_bootstrap_thread_log("ipc_thread_call_init");
ipc_thread_call_init();
/*
* Kick off memory mapping adjustments.
*/
kernel_bootstrap_thread_log("mapping_adjust");
mapping_adjust();
/*
* Create the clock service.
*/
kernel_bootstrap_thread_log("clock_service_create");
clock_service_create();
/*
* Create the device service.
*/
device_service_create();
kth_started = 1;
#if (defined(__i386__) || defined(__x86_64__)) && NCOPY_WINDOWS > 0
/*
* Create and initialize the physical copy window for processor 0
* This is required before starting kicking off IOKit.
*/
cpu_physwindow_init(0);
#endif
#if MACH_KDP
kernel_bootstrap_log("kdp_init");
kdp_init();
#endif
#if ALTERNATE_DEBUGGER
alternate_debugger_init();
#endif
#if KPC
kpc_init();
#endif
#if CONFIG_ECC_LOGGING
ecc_log_init();
#endif
#if KPERF
kperf_bootstrap();
#endif
#if HYPERVISOR
hv_support_init();
#endif
#if CONFIG_TELEMETRY
kernel_bootstrap_log("bootprofile_init");
bootprofile_init();
#endif
#if (defined(__i386__) || defined(__x86_64__)) && CONFIG_VMX
vmx_init();
#endif
#if (defined(__i386__) || defined(__x86_64__))
if (kdebug_serial) {
new_nkdbufs = 1;
if (trace_typefilter == 0)
trace_typefilter = 1;
}
if (turn_on_log_leaks && !new_nkdbufs)
new_nkdbufs = 200000;
if (trace_typefilter)
start_kern_tracing_with_typefilter(new_nkdbufs,
FALSE,
trace_typefilter);
else
start_kern_tracing(new_nkdbufs, FALSE);
if (turn_on_log_leaks)
log_leaks = 1;
#endif
kernel_bootstrap_log("prng_init");
prng_cpu_init(master_cpu);
#ifdef IOKIT
PE_init_iokit();
#endif
assert(ml_get_interrupts_enabled() == FALSE);
(void) spllo(); /* Allow interruptions */
#if (defined(__i386__) || defined(__x86_64__)) && NCOPY_WINDOWS > 0
/*
* Create and initialize the copy window for processor 0
* This also allocates window space for all other processors.
* However, this is dependent on the number of processors - so this call
* must be after IOKit has been started because IOKit performs processor
* discovery.
*/
cpu_userwindow_init(0);
#endif
#if (!defined(__i386__) && !defined(__x86_64__))
if (turn_on_log_leaks && !new_nkdbufs)
new_nkdbufs = 200000;
if (trace_typefilter)
start_kern_tracing_with_typefilter(new_nkdbufs, FALSE, trace_typefilter);
else
start_kern_tracing(new_nkdbufs, FALSE);
if (turn_on_log_leaks)
log_leaks = 1;
#endif
/*
* Initialize the shared region module.
*/
vm_shared_region_init();
vm_commpage_init();
vm_commpage_text_init();
#if CONFIG_MACF
kernel_bootstrap_log("mac_policy_initmach");
mac_policy_initmach();
#endif
#if CONFIG_SCHED_SFI
kernel_bootstrap_log("sfi_init");
sfi_init();
#endif
/*
* Initialize the globals used for permuting kernel
* addresses that may be exported to userland as tokens
* using VM_KERNEL_ADDRPERM()/VM_KERNEL_ADDRPERM_EXTERNAL().
* Force the random number to be odd to avoid mapping a non-zero
* word-aligned address to zero via addition.
* Note: at this stage we can use the cryptographically secure PRNG
* rather than early_random().
*/
read_random(&vm_kernel_addrperm, sizeof(vm_kernel_addrperm));
vm_kernel_addrperm |= 1;
read_random(&buf_kernel_addrperm, sizeof(buf_kernel_addrperm));
buf_kernel_addrperm |= 1;
read_random(&vm_kernel_addrperm_ext, sizeof(vm_kernel_addrperm_ext));
vm_kernel_addrperm_ext |= 1;
vm_set_restrictions();
/*
* Start the user bootstrap.
*/
#ifdef MACH_BSD
bsd_init();
#endif
/*
* Get rid of segments used to bootstrap kext loading. This removes
* the KLD, PRELINK symtab, LINKEDIT, and symtab segments/load commands.
*/
OSKextRemoveKextBootstrap();
serial_keyboard_init(); /* Start serial keyboard if wanted */
vm_page_init_local_q();
thread_bind(PROCESSOR_NULL);
/*
* Become the pageout daemon.
*/
vm_pageout();
/*NOTREACHED*/
}
/*
* Now running in a thread. Kick off other services,
* invoke user bootstrap, enter pageout loop.
*/
static void
kernel_bootstrap_thread(void)
{
processor_t processor = current_processor();
#define kernel_bootstrap_thread_kprintf(x...) /* kprintf("kernel_bootstrap_thread: " x) */
kernel_bootstrap_thread_kprintf("calling idle_thread_create\n");
/*
* Create the idle processor thread.
*/
idle_thread_create(processor);
/*
* N.B. Do not stick anything else
* before this point.
*
* Start up the scheduler services.
*/
kernel_bootstrap_thread_kprintf("calling sched_startup\n");
sched_startup();
/*
* Thread lifecycle maintenance (teardown, stack allocation)
*/
kernel_bootstrap_thread_kprintf("calling thread_daemon_init\n");
thread_daemon_init();
/*
* Thread callout service.
*/
kernel_bootstrap_thread_kprintf("calling thread_call_initialize\n");
thread_call_initialize();
/*
* Remain on current processor as
* additional processors come online.
*/
kernel_bootstrap_thread_kprintf("calling thread_bind\n");
thread_bind(processor);
/*
* Kick off memory mapping adjustments.
*/
kernel_bootstrap_thread_kprintf("calling mapping_adjust\n");
mapping_adjust();
/*
* Create the clock service.
*/
kernel_bootstrap_thread_kprintf("calling clock_service_create\n");
clock_service_create();
/*
* Create the device service.
*/
device_service_create();
kth_started = 1;
#if (defined(__i386__) || defined(__x86_64__)) && NCOPY_WINDOWS > 0
/*
* Create and initialize the physical copy window for processor 0
* This is required before starting kicking off IOKit.
*/
cpu_physwindow_init(0);
#endif
vm_kernel_reserved_entry_init();
#if MACH_KDP
kernel_bootstrap_kprintf("calling kdp_init\n");
kdp_init();
#endif
#if CONFIG_COUNTERS
pmc_bootstrap();
#endif
#if (defined(__i386__) || defined(__x86_64__))
if (turn_on_log_leaks && !new_nkdbufs)
new_nkdbufs = 200000;
start_kern_tracing(new_nkdbufs);
if (turn_on_log_leaks)
log_leaks = 1;
#endif
#ifdef IOKIT
PE_init_iokit();
#endif
(void) spllo(); /* Allow interruptions */
#if (defined(__i386__) || defined(__x86_64__)) && NCOPY_WINDOWS > 0
/*
* Create and initialize the copy window for processor 0
* This also allocates window space for all other processors.
* However, this is dependent on the number of processors - so this call
* must be after IOKit has been started because IOKit performs processor
* discovery.
*/
cpu_userwindow_init(0);
#endif
#if (!defined(__i386__) && !defined(__x86_64__))
if (turn_on_log_leaks && !new_nkdbufs)
new_nkdbufs = 200000;
start_kern_tracing(new_nkdbufs);
if (turn_on_log_leaks)
log_leaks = 1;
#endif
/*
* Initialize the shared region module.
*/
vm_shared_region_init();
vm_commpage_init();
vm_commpage_text_init();
#if CONFIG_MACF
mac_policy_initmach();
#endif
/*
* Initialize the global used for permuting kernel
* addresses that may be exported to userland as tokens
* using VM_KERNEL_ADDRPERM(). Force the random number
* to be odd to avoid mapping a non-zero
* word-aligned address to zero via addition.
*/
vm_kernel_addrperm = (vm_offset_t)early_random() | 1;
/*
* Start the user bootstrap.
*/
#ifdef MACH_BSD
bsd_init();
#endif
/*
* Get rid of segments used to bootstrap kext loading. This removes
* the KLD, PRELINK symtab, LINKEDIT, and symtab segments/load commands.
*/
#if 0
OSKextRemoveKextBootstrap();
#endif
serial_keyboard_init(); /* Start serial keyboard if wanted */
vm_page_init_local_q();
thread_bind(PROCESSOR_NULL);
/*
* Become the pageout daemon.
*/
vm_pageout();
/*NOTREACHED*/
}
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);
}
