]> git.saurik.com Git - apple/xnu.git/blobdiff - osfmk/kern/startup.c
xnu-1228.3.13.tar.gz
[apple/xnu.git] / osfmk / kern / startup.c
index 7f5f71bb9e73faa19a1ad22e2333d2dd82cdb628..3c132bb7495d9f636a917b44bf5807e084622b8a 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * 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.
+ */
 /*
  */
 
@@ -63,7 +69,6 @@
 #include <debug.h>
 #include <xpr_debug.h>
 #include <mach_kdp.h>
-#include <mach_host.h>
 #include <norma_vm.h>
 
 #include <mach/boolean.h>
 #include <kern/zalloc.h>
 #include <kern/locks.h>
 #include <console/serial_protos.h>
-#include <vm/vm_shared_memory_server.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 <libkern/version.h>
 
+#if CONFIG_MACF
+#include <security/mac_mach_internal.h>
+#endif
+
 #ifdef __ppc__
 #include <ppc/Firmware.h>
 #include <ppc/mappings.h>
@@ -108,11 +117,14 @@ static void               kernel_bootstrap_thread(void);
 
 static void            load_context(
                                        thread_t        thread);
-
 #ifdef i386
-extern void    cpu_window_init(int);
+extern void cpu_userwindow_init(int);
+extern void cpu_physwindow_init(int);
 #endif
 
+#ifdef CONFIG_JETTISON_KERNEL_LINKER
+extern void    jettison_kernel_linker(void);
+#endif
 
 /*
  *     Running in virtual memory, on the interrupt stack.
@@ -124,23 +136,47 @@ kernel_bootstrap(void)
        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);
 
+       kernel_bootstrap_kprintf("calling mapping_free_prime\n");
        mapping_free_prime();                                           /* Load up with temporary mapping blocks */
 
+       kernel_bootstrap_kprintf("calling machine_init\n");
        machine_init();
-       kmod_init();
+
+       kernel_bootstrap_kprintf("calling clock_init\n");
        clock_init();
 
        machine_info.memory_size = mem_size;
@@ -151,13 +187,19 @@ kernel_bootstrap(void)
        /*
         *      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();
+
+       kernel_bootstrap_kprintf("calling thread_init\n");
        thread_init();
        
        /*
         *      Create a kernel thread to execute the kernel bootstrap.
         */
+       kernel_bootstrap_kprintf("calling kernel_thread_create\n");
        result = kernel_thread_create((thread_continue_t)kernel_bootstrap_thread, NULL, MAXPRI_KERNEL, &thread);
 
        if (result != KERN_SUCCESS) panic("kernel_bootstrap: result = %08X\n", result);
@@ -165,10 +207,13 @@ kernel_bootstrap(void)
        thread->state = TH_RUN;
        thread_deallocate(thread);
 
+       kernel_bootstrap_kprintf("calling load_context - done\n");
        load_context(thread);
        /*NOTREACHED*/
 }
 
+int kth_started = 0;
+
 /*
  * Now running in a thread.  Kick off other services,
  * invoke user bootstrap, enter pageout loop.
@@ -177,8 +222,9 @@ static void
 kernel_bootstrap_thread(void)
 {
        processor_t             processor = current_processor();
-       thread_t                self = current_thread();
 
+#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.
         */
@@ -190,22 +236,26 @@ kernel_bootstrap_thread(void)
         *
         * Start up the scheduler services.
         */
+       kernel_bootstrap_thread_kprintf("calling sched_startup\n");
        sched_startup();
 
        /*
         * Remain on current processor as
         * additional processors come online.
         */
-       thread_bind(self, processor);
+       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();
 
        /*
@@ -213,41 +263,58 @@ kernel_bootstrap_thread(void)
         */
        device_service_create();
 
-       shared_file_boot_time_init(ENV_DEFAULT_ROOT, 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 */
 
+#ifdef i386
        /*
-        *      Fill in the comm area (mapped into every task address space.)
+        * 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.
         */
-       commpage_populate();
+       cpu_userwindow_init(0);
+#endif
 
-#ifdef i386
        /*
-        *      create and initialize a copy window
-        *      for processor 0
+        *      Initialize the shared region module.
         */
-       cpu_window_init(0);
+       vm_shared_region_init();
+       vm_commpage_init();
+
+#if CONFIG_MACF
+       mac_policy_initmach();
 #endif
 
        /*
         *      Start the user bootstrap.
         */
 #ifdef MACH_BSD
-       { 
-               bsd_init();
-       }
+       bsd_init();
+#endif
+
+#ifdef CONFIG_JETTISON_KERNEL_LINKER
+       /* We do not run kextd, so get rid of the kernel linker now */
+       jettison_kernel_linker();
 #endif
 
        serial_keyboard_init();         /* Start serial keyboard if wanted */
 
-       thread_bind(self, PROCESSOR_NULL);
+       thread_bind(PROCESSOR_NULL);
 
        /*
         *      Become the pageout daemon.
@@ -322,7 +389,13 @@ load_context(
 {
        processor_t             processor = current_processor();
 
+
+#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));
@@ -332,7 +405,10 @@ load_context(
         * 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");
        }
@@ -342,7 +418,7 @@ load_context(
         * running for load calculations.
         */
        if (!(thread->state & TH_IDLE))
-               pset_run_incr(thread->processor_set);
+               sched_run_incr();
 
        processor->active_thread = thread;
        processor->current_pri = thread->sched_pri;
@@ -350,11 +426,15 @@ load_context(
        thread->last_processor = processor;
 
        processor->last_dispatch = mach_absolute_time();
-       timer_switch((uint32_t)processor->last_dispatch,
-                                                       &PROCESSOR_DATA(processor, offline_timer));
+       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, PROCESSOR_DATA(processor, slot_num));
 
+       load_context_kprintf("calling machine_load_context\n");
        machine_load_context(thread);
        /*NOTREACHED*/
 }