/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
+/*
+ * NOTICE: This file was modified by McAfee Research in 2004 to introduce
+ * support for mandatory and extensible security protections. This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */
/*
*/
#include <debug.h>
#include <xpr_debug.h>
#include <mach_kdp.h>
-#include <cpus.h>
-#include <mach_host.h>
#include <norma_vm.h>
-#include <etap.h>
#include <mach/boolean.h>
#include <mach/machine.h>
+#include <mach/thread_act.h>
#include <mach/task_special_ports.h>
#include <mach/vm_param.h>
#include <ipc/ipc_init.h>
#include <kern/misc_protos.h>
#include <kern/clock.h>
#include <kern/cpu_number.h>
-#include <kern/etap_macros.h>
+#include <kern/ledger.h>
#include <kern/machine.h>
#include <kern/processor.h>
#include <kern/sched_prim.h>
-#include <kern/mk_sp.h>
#include <kern/startup.h>
#include <kern/task.h>
#include <kern/thread.h>
#include <kern/timer.h>
-#include <kern/timer_call.h>
#include <kern/xpr.h>
#include <kern/zalloc.h>
-#include <vm/vm_shared_memory_server.h>
+#include <kern/locks.h>
+#include <console/serial_protos.h>
#include <vm/vm_kern.h>
#include <vm/vm_init.h>
#include <vm/vm_map.h>
#include <vm/vm_object.h>
#include <vm/vm_page.h>
#include <vm/vm_pageout.h>
+#include <vm/vm_shared_region.h>
#include <machine/pmap.h>
#include <machine/commpage.h>
-#include <sys/version.h>
+#include <libkern/version.h>
+
+#if CONFIG_MACF
+#include <security/mac_mach_internal.h>
+#endif
#ifdef __ppc__
#include <ppc/Firmware.h>
#include <ppc/mappings.h>
#endif
-/* Externs XXX */
-extern void rtclock_reset(void);
+static void kernel_bootstrap_thread(void);
+
+static void load_context(
+ thread_t thread);
+#ifdef i386
+extern void cpu_userwindow_init(int);
+extern void cpu_physwindow_init(int);
+#endif
-/* Forwards */
-void cpu_launch_first_thread(
- thread_t thread);
-void start_kernel_threads(void);
+#ifdef CONFIG_JETTISON_KERNEL_LINKER
+extern void jettison_kernel_linker(void);
+#endif
/*
* Running in virtual memory, on the interrupt stack.
- * Does not return. Dispatches initial thread.
- *
- * Assumes that master_cpu is set.
*/
+
void
-setup_main(void)
+kernel_bootstrap(void)
{
- thread_t startup_thread;
+ kern_return_t result;
+ thread_t thread;
+
+ printf("%s\n", version); /* log kernel version */
+#define kernel_bootstrap_kprintf(x...) /* kprintf("kernel_bootstrap: " x) */
+
+ kernel_bootstrap_kprintf("calling lck_mod_init\n");
+ lck_mod_init();
+
+ kernel_bootstrap_kprintf("calling sched_init\n");
sched_init();
+
+ kernel_bootstrap_kprintf("calling vm_mem_bootstrap\n");
vm_mem_bootstrap();
+
+ kernel_bootstrap_kprintf("calling ipc_bootstrap\n");
ipc_bootstrap();
+
+ kernel_bootstrap_kprintf("calling vm_mem_init\n");
vm_mem_init();
+
+ kernel_bootstrap_kprintf("calling kmod_init\n");
+ kmod_init();
+#if CONFIG_MACF
+ mac_policy_init();
+#endif
+ kernel_bootstrap_kprintf("calling ipc_init\n");
ipc_init();
/*
* As soon as the virtual memory system is up, we record
* that this CPU is using the kernel pmap.
*/
+ kernel_bootstrap_kprintf("calling PMAP_ACTIVATE_KERNEL\n");
PMAP_ACTIVATE_KERNEL(master_cpu);
-#ifdef __ppc__
+ kernel_bootstrap_kprintf("calling mapping_free_prime\n");
mapping_free_prime(); /* Load up with temporary mapping blocks */
-#endif
+ kernel_bootstrap_kprintf("calling machine_init\n");
machine_init();
- kmod_init();
- clock_init();
- init_timers();
- timer_call_initialize();
+ kernel_bootstrap_kprintf("calling clock_init\n");
+ clock_init();
- machine_info.max_cpus = NCPUS;
machine_info.memory_size = mem_size;
- machine_info.avail_cpus = 0;
- machine_info.major_version = KERNEL_MAJOR_VERSION;
- machine_info.minor_version = KERNEL_MINOR_VERSION;
+ machine_info.max_mem = max_mem;
+ machine_info.major_version = version_major;
+ machine_info.minor_version = version_minor;
/*
* Initialize the IPC, task, and thread subsystems.
*/
+ kernel_bootstrap_kprintf("calling ledger_init\n");
ledger_init();
+
+ kernel_bootstrap_kprintf("calling task_init\n");
task_init();
- thread_init();
- /*
- * Initialize the Event Trace Analysis Package.
- * Dynamic Phase: 2 of 2
- */
- etap_init_phase2();
+ kernel_bootstrap_kprintf("calling thread_init\n");
+ thread_init();
/*
- * Create a kernel thread to start the other kernel
- * threads.
+ * Create a kernel thread to execute the kernel bootstrap.
*/
- startup_thread = kernel_thread_create(start_kernel_threads, MAXPRI_KERNEL);
+ kernel_bootstrap_kprintf("calling kernel_thread_create\n");
+ result = kernel_thread_create((thread_continue_t)kernel_bootstrap_thread, NULL, MAXPRI_KERNEL, &thread);
- /*
- * Start the thread.
- */
- startup_thread->state = TH_RUN;
- pset_run_incr(startup_thread->processor_set);
+ if (result != KERN_SUCCESS) panic("kernel_bootstrap: result = %08X\n", result);
- cpu_launch_first_thread(startup_thread);
+ thread->state = TH_RUN;
+ thread_deallocate(thread);
+
+ kernel_bootstrap_kprintf("calling load_context - done\n");
+ load_context(thread);
/*NOTREACHED*/
- panic("cpu_launch_first_thread returns!");
}
+int kth_started = 0;
+
/*
- * Now running in a thread. Create the rest of the kernel threads
- * and the bootstrap task.
+ * Now running in a thread. Kick off other services,
+ * invoke user bootstrap, enter pageout loop.
*/
-void
-start_kernel_threads(void)
+static void
+kernel_bootstrap_thread(void)
{
- register int i;
-
- thread_bind(current_thread(), cpu_to_processor(cpu_number()));
-
- /*
- * Create the idle threads and the other
- * service threads.
- */
- for (i = 0; i < NCPUS; i++) {
- processor_t processor = cpu_to_processor(i);
- thread_t thread;
- spl_t s;
-
- thread = kernel_thread_create(idle_thread, MAXPRI_KERNEL);
-
- s = splsched();
- thread_lock(thread);
- thread->bound_processor = processor;
- processor->idle_thread = thread;
- thread->ref_count++;
- thread->sched_pri = thread->priority = IDLEPRI;
- thread->state = (TH_RUN | TH_IDLE);
- thread_unlock(thread);
- splx(s);
- }
+ 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");
/*
- * Initialize the thread reaper mechanism.
+ * Create the idle processor thread.
*/
- thread_reaper_init();
+ idle_thread_create(processor);
/*
- * Initialize the stack swapin mechanism.
+ * N.B. Do not stick anything else
+ * before this point.
+ *
+ * Start up the scheduler services.
*/
- swapin_init();
+ kernel_bootstrap_thread_kprintf("calling sched_startup\n");
+ sched_startup();
/*
- * Initialize the periodic scheduler mechanism.
+ * Remain on current processor as
+ * additional processors come online.
*/
- sched_tick_init();
+ kernel_bootstrap_thread_kprintf("calling thread_bind\n");
+ thread_bind(processor);
/*
- * Initialize the thread callout mechanism.
+ * Kick off memory mapping adjustments.
*/
- thread_call_initialize();
-
- /*
- * Invoke some black magic.
- */
-#if __ppc__
+ kernel_bootstrap_thread_kprintf("calling mapping_adjust\n");
mapping_adjust();
-#endif
/*
* Create the clock service.
*/
+ kernel_bootstrap_thread_kprintf("calling clock_service_create\n");
clock_service_create();
/*
*/
device_service_create();
- shared_file_boot_time_init(ENV_DEFAULT_ROOT, machine_slot[cpu_number()].cpu_type);
+ kth_started = 1;
+
+#ifdef i386
+ /*
+ * Create and initialize the physical copy window for processor 0
+ * This is required before starting kicking off IOKit.
+ */
+ cpu_physwindow_init(0);
+#endif
#ifdef IOKIT
- {
- PE_init_iokit();
- }
+ PE_init_iokit();
#endif
(void) spllo(); /* Allow interruptions */
- /*
- * Fill in the comm area (mapped into every task address space.)
- */
- commpage_populate();
+#ifdef i386
+ /*
+ * 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
+
+ /*
+ * Initialize the shared region module.
+ */
+ vm_shared_region_init();
+ vm_commpage_init();
+
+#if CONFIG_MACF
+ mac_policy_initmach();
+#endif
/*
* Start the user bootstrap.
*/
-
#ifdef MACH_BSD
- {
- extern void bsd_init(void);
- bsd_init();
- }
+ bsd_init();
#endif
-#if __ppc__
- serial_keyboard_init(); /* Start serial keyboard if wanted */
+#ifdef CONFIG_JETTISON_KERNEL_LINKER
+ /* We do not run kextd, so get rid of the kernel linker now */
+ jettison_kernel_linker();
#endif
- thread_bind(current_thread(), PROCESSOR_NULL);
+ serial_keyboard_init(); /* Start serial keyboard if wanted */
+
+ thread_bind(PROCESSOR_NULL);
/*
* Become the pageout daemon.
*/
-
vm_pageout();
/*NOTREACHED*/
}
+/*
+ * slave_main:
+ *
+ * Load the first thread to start a processor.
+ */
void
slave_main(void)
{
- processor_t myprocessor = current_processor();
+ processor_t processor = current_processor();
thread_t thread;
- thread = myprocessor->next_thread;
- myprocessor->next_thread = THREAD_NULL;
- if (thread == THREAD_NULL) {
- thread = machine_wake_thread;
- machine_wake_thread = THREAD_NULL;
+ /*
+ * Use the idle processor thread if there
+ * is no dedicated start up thread.
+ */
+ if (processor->next_thread == THREAD_NULL) {
+ thread = processor->idle_thread;
+ thread->continuation = (thread_continue_t)processor_start_thread;
+ thread->parameter = NULL;
+ }
+ else {
+ thread = processor->next_thread;
+ processor->next_thread = THREAD_NULL;
}
- cpu_launch_first_thread(thread);
+ load_context(thread);
/*NOTREACHED*/
- panic("slave_main");
}
/*
- * Now running in a thread context
+ * processor_start_thread:
+ *
+ * First thread to execute on a started processor.
+ *
+ * Called at splsched.
*/
void
-start_cpu_thread(void)
+processor_start_thread(void)
{
+ processor_t processor = current_processor();
+ thread_t self = current_thread();
+
slave_machine_init();
- (void) thread_terminate(current_act());
+ /*
+ * If running the idle processor thread,
+ * reenter the idle loop, else terminate.
+ */
+ if (self == processor->idle_thread)
+ thread_block((thread_continue_t)idle_thread);
+
+ thread_terminate(self);
+ /*NOTREACHED*/
}
/*
- * Start up the first thread on a CPU.
+ * load_context:
+ *
+ * Start the first thread on a processor.
*/
-void
-cpu_launch_first_thread(
+static void
+load_context(
thread_t thread)
{
- register int mycpu = cpu_number();
- processor_t processor = cpu_to_processor(mycpu);
+ processor_t processor = current_processor();
- clock_get_uptime(&processor->last_dispatch);
- start_timer(&kernel_timer[mycpu]);
- machine_thread_set_current(thread);
- cpu_up(mycpu);
- rtclock_reset(); /* start realtime clock ticking */
- PMAP_ACTIVATE_KERNEL(mycpu);
+#define load_context_kprintf(x...) /* kprintf("load_context: " x) */
+
+ load_context_kprintf("calling machine_set_current_thread\n");
+ machine_set_current_thread(thread);
+
+ load_context_kprintf("calling processor_up\n");
+ processor_up(processor);
+
+ PMAP_ACTIVATE_KERNEL(PROCESSOR_DATA(processor, slot_num));
+
+ /*
+ * Acquire a stack if none attached. The panic
+ * should never occur since the thread is expected
+ * to have reserved stack.
+ */
+ load_context_kprintf("stack %x, stackptr %x\n",
+ thread->kernel_stack, thread->machine.kstackptr);
+ if (!thread->kernel_stack) {
+ load_context_kprintf("calling stack_alloc_try\n");
+ if (!stack_alloc_try(thread))
+ panic("load_context");
+ }
+
+ /*
+ * The idle processor threads are not counted as
+ * running for load calculations.
+ */
+ if (!(thread->state & TH_IDLE))
+ sched_run_incr();
- thread_lock(thread);
- thread->state &= ~TH_UNINT;
- thread->last_processor = processor;
processor->active_thread = thread;
processor->current_pri = thread->sched_pri;
- _mk_sp_thread_begin(thread, processor);
- thread_unlock(thread);
- timer_switch(&thread->system_timer);
+ processor->deadline = UINT64_MAX;
+ thread->last_processor = processor;
+
+ processor->last_dispatch = mach_absolute_time();
+ timer_start(&thread->system_timer, processor->last_dispatch);
+ PROCESSOR_DATA(processor, thread_timer) = PROCESSOR_DATA(processor, kernel_timer) = &thread->system_timer;
+
+ timer_start(&PROCESSOR_DATA(processor, system_state), processor->last_dispatch);
+ PROCESSOR_DATA(processor, current_state) = &PROCESSOR_DATA(processor, system_state);
- PMAP_ACTIVATE_USER(thread->top_act, mycpu);
+ PMAP_ACTIVATE_USER(thread, PROCESSOR_DATA(processor, slot_num));
- /* preemption enabled by load_context */
+ load_context_kprintf("calling machine_load_context\n");
machine_load_context(thread);
/*NOTREACHED*/
}
projects / apple / xnu.git / blobdiff