1 /* 2 * Copyright (c) 1998-2010 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 #include <libkern/c++/OSUnserialize.h> 30 #include <libkern/c++/OSKext.h> 31 #include <libkern/version.h> 32 #include <IOKit/IORegistryEntry.h> 33 #include <IOKit/IODeviceTreeSupport.h> 34 #include <IOKit/IOCatalogue.h> 35 #include <IOKit/IOUserClient.h> 36 #include <IOKit/IOMemoryDescriptor.h> 37 #include <IOKit/IOPlatformExpert.h> 38 #include <IOKit/IOLib.h> 39 #include <IOKit/IOKitKeys.h> 40 #include <IOKit/IOKitDebug.h> 41 #include <IOKit/pwr_mgt/RootDomain.h> 42 #include <IOKit/pwr_mgt/IOPMinformeeList.h> 43 #include <IOKit/IOStatisticsPrivate.h> 44 #include <IOKit/IOKitKeysPrivate.h> 45 #include <IOKit/IOInterruptAccountingPrivate.h> 46 #include <IOKit/assert.h> 47 #include <sys/conf.h> 48 49 #include "IOKitKernelInternal.h" 50 51 const OSSymbol * gIOProgressBackbufferKey; 52 OSSet * gIORemoveOnReadProperties; 53 54 extern "C" { 55 56 void StartIOKit( void * p1, void * p2, void * p3, void * p4 ); 57 void IORegistrySetOSBuildVersion(char * build_version); 58 void IORecordProgressBackbuffer(void * buffer, size_t size, uint32_t theme); 59 60 extern void OSlibkernInit (void); 61 62 void iokit_post_constructor_init(void); 63 64 #include <kern/clock.h> 65 #include <sys/time.h> 66 67 void IOKitInitializeTime( void ) 68 { 69 mach_timespec_t t; 70 71 t.tv_sec = 30; 72 t.tv_nsec = 0; 73 IOService::waitForService( 74 IOService::resourceMatching("IORTC"), &t ); 75 #if defined(__i386__) || defined(__x86_64__) 76 IOService::waitForService( 77 IOService::resourceMatching("IONVRAM"), &t ); 78 #endif 79 80 clock_initialize_calendar(); 81 } 82 83 void iokit_post_constructor_init(void) 84 { 85 IORegistryEntry * root; 86 OSObject * obj; 87 88 IOCPUInitialize(); 89 root = IORegistryEntry::initialize(); 90 assert( root ); 91 IOService::initialize(); 92 IOCatalogue::initialize(); 93 IOStatistics::initialize(); 94 OSKext::initialize(); 95 IOUserClient::initialize(); 96 IOMemoryDescriptor::initialize(); 97 IORootParent::initialize(); 98 99 // Initializes IOPMinformeeList class-wide shared lock 100 IOPMinformeeList::getSharedRecursiveLock(); 101 102 obj = OSString::withCString( version ); 103 assert( obj ); 104 if( obj ) { 105 root->setProperty( kIOKitBuildVersionKey, obj ); 106 obj->release(); 107 } 108 obj = IOKitDiagnostics::diagnostics(); 109 if( obj ) { 110 root->setProperty( kIOKitDiagnosticsKey, obj ); 111 obj->release(); 112 } 113 } 114 115 /***** 116 * Pointer into bootstrap KLD segment for functions never used past startup. 117 */ 118 void (*record_startup_extensions_function)(void) = 0; 119 120 void StartIOKit( void * p1, void * p2, void * p3, void * p4 ) 121 { 122 IOPlatformExpertDevice * rootNub; 123 int debugFlags; 124 125 if( PE_parse_boot_argn( "io", &debugFlags, sizeof (debugFlags) )) 126 gIOKitDebug = debugFlags; 127 #if DEVELOPMENT || DEBUG 128 else gIOKitDebug |= kIOWaitQuietPanics; 129 #endif /* DEVELOPMENT || DEBUG */ 130 131 if( PE_parse_boot_argn( "iotrace", &debugFlags, sizeof (debugFlags) )) 132 gIOKitTrace = debugFlags; 133 134 // Compat for boot-args 135 gIOKitTrace |= (gIOKitDebug & kIOTraceCompatBootArgs); 136 137 if( PE_parse_boot_argn( "pmtimeout", &debugFlags, sizeof (debugFlags) )) 138 gCanSleepTimeout = debugFlags; 139 // 140 // Have to start IOKit environment before we attempt to start 141 // the C++ runtime environment. At some stage we have to clean up 142 // the initialisation path so that OS C++ can initialise independantly 143 // of iokit basic service initialisation, or better we have IOLib stuff 144 // initialise as basic OS services. 145 // 146 IOLibInit(); 147 OSlibkernInit(); 148 devsw_init(); 149 150 gIOProgressBackbufferKey = OSSymbol::withCStringNoCopy(kIOProgressBackbufferKey); 151 gIORemoveOnReadProperties = OSSet::withObjects((const OSObject **) &gIOProgressBackbufferKey, 1); 152 153 interruptAccountingInit(); 154 155 rootNub = new IOPlatformExpertDevice; 156 157 if( rootNub && rootNub->initWithArgs( p1, p2, p3, p4)) { 158 rootNub->attach( 0 ); 159 160 /* If the bootstrap segment set up a function to record startup 161 * extensions, call it now. 162 */ 163 if (record_startup_extensions_function) { 164 record_startup_extensions_function(); 165 } 166 167 rootNub->registerService(); 168 169 #if !NO_KEXTD 170 /* Add a busy count to keep the registry busy until kextd has 171 * completely finished launching. This is decremented when kextd 172 * messages the kernel after the in-kernel linker has been 173 * removed and personalities have been sent. 174 */ 175 IOService::getServiceRoot()->adjustBusy(1); 176 #endif 177 } 178 } 179 180 void 181 IORegistrySetOSBuildVersion(char * build_version) 182 { 183 IORegistryEntry * root = IORegistryEntry::getRegistryRoot(); 184 185 if (root) { 186 if (build_version) { 187 root->setProperty(kOSBuildVersionKey, build_version); 188 } else { 189 root->removeProperty(kOSBuildVersionKey); 190 } 191 } 192 193 return; 194 } 195 196 void 197 IORecordProgressBackbuffer(void * buffer, size_t size, uint32_t theme) 198 { 199 IORegistryEntry * chosen; 200 if ((chosen = IORegistryEntry::fromPath(kIODeviceTreePlane ":/chosen"))) 201 { 202 chosen->setProperty(kIOProgressBackbufferKey, buffer, size); 203 chosen->setProperty(kIOProgressColorThemeKey, theme, 32); 204 205 chosen->release(); 206 } 207 } 208 209 }; /* extern "C" */ 210