| 1 | /*␊ |
| 2 | * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * Portions Copyright (c) 1999-2003 Apple Computer, Inc. All Rights␊ |
| 7 | * Reserved. This file contains Original Code and/or Modifications of␊ |
| 8 | * Original Code as defined in and that are subject to the Apple Public␊ |
| 9 | * Source License Version 2.0 (the "License"). You may not use this file␊ |
| 10 | * except in compliance with the License. Please obtain a copy of the␊ |
| 11 | * License at http://www.apple.com/publicsource and read it before using␊ |
| 12 | * this file.␊ |
| 13 | * ␊ |
| 14 | * The Original Code and all software distributed under the License are␊ |
| 15 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 16 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 17 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the␊ |
| 19 | * License for the specific language governing rights and limitations␊ |
| 20 | * under the License.␊ |
| 21 | * ␊ |
| 22 | * @APPLE_LICENSE_HEADER_END@␊ |
| 23 | */␊ |
| 24 | /* ␊ |
| 25 | * Mach Operating System␊ |
| 26 | * Copyright (c) 1990 Carnegie-Mellon University␊ |
| 27 | * Copyright (c) 1989 Carnegie-Mellon University␊ |
| 28 | * All rights reserved. The CMU software License Agreement specifies␊ |
| 29 | * the terms and conditions for use and redistribution.␊ |
| 30 | */␊ |
| 31 | ␊ |
| 32 | /*␊ |
| 33 | * INTEL CORPORATION PROPRIETARY INFORMATION␊ |
| 34 | *␊ |
| 35 | * This software is supplied under the terms of a license agreement or ␊ |
| 36 | * nondisclosure agreement with Intel Corporation and may not be copied ␊ |
| 37 | * nor disclosed except in accordance with the terms of that agreement.␊ |
| 38 | *␊ |
| 39 | * Copyright 1988, 1989 by Intel Corporation␊ |
| 40 | */␊ |
| 41 | ␊ |
| 42 | /*␊ |
| 43 | * Copyright 1993 NeXT Computer, Inc.␊ |
| 44 | * All rights reserved.␊ |
| 45 | */␊ |
| 46 | ␊ |
| 47 | /*␊ |
| 48 | * Completely reworked by Sam Streeper (sam_s@NeXT.com)␊ |
| 49 | * Reworked again by Curtis Galloway (galloway@NeXT.com)␊ |
| 50 | */␊ |
| 51 | ␊ |
| 52 | ␊ |
| 53 | #include "boot.h"␊ |
| 54 | #include "bootstruct.h"␊ |
| 55 | #include "fake_efi.h"␊ |
| 56 | #include "sl.h"␊ |
| 57 | #include "libsa.h"␊ |
| 58 | #include "ramdisk.h"␊ |
| 59 | #include "gui.h"␊ |
| 60 | #include "graphics.h"␊ |
| 61 | #include "vbe.h"␊ |
| 62 | #include "915resolution.h"␊ |
| 63 | #include "edid.h"␊ |
| 64 | ␊ |
| 65 | long gBootMode; /* defaults to 0 == kBootModeNormal */␊ |
| 66 | BOOL gOverrideKernel;␊ |
| 67 | static char gBootKernelCacheFile[512];␊ |
| 68 | static char gCacheNameAdler[64 + 256];␊ |
| 69 | char *gPlatformName = gCacheNameAdler;␊ |
| 70 | char gRootDevice[512];␊ |
| 71 | char gMKextName[512];␊ |
| 72 | char gMacOSVersion[8];␊ |
| 73 | BOOL gEnableCDROMRescan;␊ |
| 74 | BOOL gScanSingleDrive;␊ |
| 75 | ␊ |
| 76 | int bvCount = 0;␊ |
| 77 | //int␉␉menucount = 0;␊ |
| 78 | int gDeviceCount = 0; ␊ |
| 79 | ␊ |
| 80 | BVRef bvr;␊ |
| 81 | BVRef menuBVR;␊ |
| 82 | BVRef bvChain;␊ |
| 83 | BOOL useGUI = TRUE;␊ |
| 84 | ␊ |
| 85 | //static void selectBiosDevice(void);␊ |
| 86 | ␊ |
| 87 | static␊ |
| 88 | unsigned long Adler32(unsigned char *buffer, long length);␊ |
| 89 | ␊ |
| 90 | ␊ |
| 91 | static BOOL gUnloadPXEOnExit = 0;␊ |
| 92 | ␊ |
| 93 | /*␊ |
| 94 | * How long to wait (in seconds) to load the␊ |
| 95 | * kernel after displaying the "boot:" prompt.␊ |
| 96 | */␊ |
| 97 | #define kBootErrorTimeout 5␊ |
| 98 | ␊ |
| 99 | /*␊ |
| 100 | * Default path to kernel cache file␊ |
| 101 | */␊ |
| 102 | #define kDefaultCachePath "/System/Library/Caches/com.apple.kernelcaches/kernelcache"␊ |
| 103 | ␊ |
| 104 | //==========================================================================␊ |
| 105 | // Zero the BSS.␊ |
| 106 | ␊ |
| 107 | static void zeroBSS()␊ |
| 108 | {␊ |
| 109 | extern char _DATA__bss__begin, _DATA__bss__end;␊ |
| 110 | extern char _DATA__common__begin, _DATA__common__end;␊ |
| 111 | ␊ |
| 112 | bzero( &_DATA__bss__begin,␊ |
| 113 | (&_DATA__bss__end - &_DATA__bss__begin) );␊ |
| 114 | ␊ |
| 115 | bzero( &_DATA__common__begin, ␊ |
| 116 | (&_DATA__common__end - &_DATA__common__begin) );␊ |
| 117 | }␊ |
| 118 | ␊ |
| 119 | //==========================================================================␊ |
| 120 | // Malloc error function␊ |
| 121 | ␊ |
| 122 | static void malloc_error(char *addr, size_t size)␊ |
| 123 | {␊ |
| 124 | printf("\nMemory allocation error (0x%x, 0x%x)\n",␊ |
| 125 | (unsigned)addr, (unsigned)size);␊ |
| 126 | asm volatile ("hlt");␊ |
| 127 | }␊ |
| 128 | ␊ |
| 129 | /*!␊ |
| 130 | Initializes the runtime. Right now this means zeroing the BSS and initializing malloc.␊ |
| 131 | */␊ |
| 132 | void initialize_runtime()␊ |
| 133 | {␊ |
| 134 | zeroBSS();␊ |
| 135 | ␊ |
| 136 | // Initialize malloc␊ |
| 137 | malloc_init(0, 0, 0, malloc_error);␊ |
| 138 | }␊ |
| 139 | ␊ |
| 140 | //==========================================================================␊ |
| 141 | // execKernel - Load the kernel image (mach-o) and jump to its entry point.␊ |
| 142 | ␊ |
| 143 | static int ExecKernel(void *binary)␊ |
| 144 | {␊ |
| 145 | entry_t kernelEntry;␊ |
| 146 | int ret;␊ |
| 147 | ␊ |
| 148 | bootArgs->kaddr = bootArgs->ksize = 0;␊ |
| 149 | ␊ |
| 150 | ret = DecodeKernel(binary,␊ |
| 151 | &kernelEntry,␊ |
| 152 | (char **) &bootArgs->kaddr,␊ |
| 153 | (int *)&bootArgs->ksize );␊ |
| 154 | ␊ |
| 155 | if ( ret != 0 )␊ |
| 156 | return ret;␊ |
| 157 | ␊ |
| 158 | // Reserve space for boot args␊ |
| 159 | reserveKernBootStruct();␊ |
| 160 | ␊ |
| 161 | // Load boot drivers from the specifed root path.␊ |
| 162 | ␊ |
| 163 | if (!gHaveKernelCache) {␊ |
| 164 | LoadDrivers("/");␊ |
| 165 | }␊ |
| 166 | ␊ |
| 167 | clearActivityIndicator();␊ |
| 168 | ␊ |
| 169 | if (gErrors) {␊ |
| 170 | printf("Errors encountered while starting up the computer.\n");␊ |
| 171 | printf("Pausing %d seconds...\n", kBootErrorTimeout);␊ |
| 172 | sleep(kBootErrorTimeout);␊ |
| 173 | }␊ |
| 174 | ␊ |
| 175 | setupFakeEfi();␊ |
| 176 | ␊ |
| 177 | verbose("Starting Darwin %s\n",( archCpuType == CPU_TYPE_I386 ) ? "x86" : "x86_64");␊ |
| 178 | ␊ |
| 179 | // Cleanup the PXE base code.␊ |
| 180 | ␊ |
| 181 | if ( (gBootFileType == kNetworkDeviceType) && gUnloadPXEOnExit ) {␊ |
| 182 | ␉␉if ( (ret = nbpUnloadBaseCode()) != nbpStatusSuccess )␊ |
| 183 | {␊ |
| 184 | ␉printf("nbpUnloadBaseCode error %d\n", (int) ret);␊ |
| 185 | sleep(2);␊ |
| 186 | }␊ |
| 187 | }␊ |
| 188 | ␊ |
| 189 | ␉BOOL dummyVal;␊ |
| 190 | ␊ |
| 191 | if (getBoolForKey(kWaitForKeypressKey, &dummyVal, &bootInfo->bootConfig) && dummyVal)␊ |
| 192 | {␊ |
| 193 | printf("Press any key to continue...");␊ |
| 194 | getc();␊ |
| 195 | }␊ |
| 196 | ␊ |
| 197 | // If we were in text mode, switch to graphics mode.␊ |
| 198 | // This will draw the boot graphics unless we are in␊ |
| 199 | // verbose mode.␊ |
| 200 | ␊ |
| 201 | if(gVerboseMode)␊ |
| 202 | setVideoMode( GRAPHICS_MODE, 0 );␊ |
| 203 | else␊ |
| 204 | drawBootGraphics();␊ |
| 205 | ␉␊ |
| 206 | finalizeBootStruct();␊ |
| 207 | ␊ |
| 208 | // Jump to kernel's entry point. There's no going back now.␊ |
| 209 | ␊ |
| 210 | startprog( kernelEntry, bootArgs );␊ |
| 211 | ␊ |
| 212 | // Not reached␊ |
| 213 | ␊ |
| 214 | return 0;␊ |
| 215 | }␊ |
| 216 | ␊ |
| 217 | //==========================================================================␊ |
| 218 | // Scan and record the system's hardware information.␊ |
| 219 | ␊ |
| 220 | static void scanHardware()␊ |
| 221 | {␊ |
| 222 | ␉extern void scan_platform();␊ |
| 223 | ␊ |
| 224 | ␉scan_platform();␊ |
| 225 | }␊ |
| 226 | ␊ |
| 227 | /*!␊ |
| 228 | This is the entrypoint from real-mode which functions exactly as it did before.␊ |
| 229 | Multiboot does its own runtime initialization, does some of its own things, and then␊ |
| 230 | calls common_boot.␊ |
| 231 | */␊ |
| 232 | void boot(int biosdev)␊ |
| 233 | {␊ |
| 234 | initialize_runtime();␊ |
| 235 | ␊ |
| 236 | // Enable A20 gate before accessing memory above 1Mb.␊ |
| 237 | enableA20();␊ |
| 238 | ␊ |
| 239 | return common_boot(biosdev);␊ |
| 240 | }␊ |
| 241 | ␊ |
| 242 | //==========================================================================␊ |
| 243 | // The 'main' function for the booter. Called by boot0 when booting␊ |
| 244 | // from a block device, or by the network booter.␊ |
| 245 | //␊ |
| 246 | // arguments:␊ |
| 247 | // biosdev - Value passed from boot1/NBP to specify the device␊ |
| 248 | // that the booter was loaded from.␊ |
| 249 | //␊ |
| 250 | // If biosdev is kBIOSDevNetwork, then this function will return if␊ |
| 251 | // booting was unsuccessful. This allows the PXE firmware to try the␊ |
| 252 | // next boot device on its list.␊ |
| 253 | ␊ |
| 254 | #define DLOG(x) outb(0x80, (x))␊ |
| 255 | ␊ |
| 256 | void common_boot(int biosdev)␊ |
| 257 | {␊ |
| 258 | int status;␊ |
| 259 | char *bootFile;␊ |
| 260 | unsigned long adler32;␊ |
| 261 | BOOL quiet;␊ |
| 262 | BOOL firstRun = YES;␊ |
| 263 | BOOL instantMenu;␊ |
| 264 | BOOL rescanPrompt;␊ |
| 265 | unsigned int allowBVFlags = kBVFlagSystemVolume|kBVFlagForeignBoot;␊ |
| 266 | unsigned int denyBVFlags = kBVFlagEFISystem;␊ |
| 267 | ␊ |
| 268 | // Set reminder to unload the PXE base code. Neglect to unload␊ |
| 269 | // the base code will result in a hang or kernel panic.␊ |
| 270 | ␊ |
| 271 | gUnloadPXEOnExit = 1;␊ |
| 272 | ␊ |
| 273 | // Record the device that the booter was loaded from.␊ |
| 274 | ␊ |
| 275 | gBIOSDev = biosdev & kBIOSDevMask;␊ |
| 276 | ␊ |
| 277 | // Initialize boot info structure.␊ |
| 278 | ␊ |
| 279 | initKernBootStruct();␊ |
| 280 | ␊ |
| 281 | // Setup VGA text mode.␊ |
| 282 | // Not sure if it is safe to call setVideoMode() before the␊ |
| 283 | // config table has been loaded. Call video_mode() instead.␊ |
| 284 | ␊ |
| 285 | #if DEBUG␊ |
| 286 | printf("before video_mode\n");␊ |
| 287 | #endif␊ |
| 288 | video_mode( 2 ); // 80x25 mono text mode.␊ |
| 289 | #if DEBUG␊ |
| 290 | printf("after video_mode\n");␊ |
| 291 | #endif␊ |
| 292 | ␊ |
| 293 | // Check to see that this hardware is supported.␊ |
| 294 | status = checkForSupportedHardware();␊ |
| 295 | if (status != 0) {␊ |
| 296 | printf("This hardware configuration is not supported by Darwin/x86. (%d)", status);␊ |
| 297 | }␊ |
| 298 | ␊ |
| 299 | // First get info for boot volume.␊ |
| 300 | scanBootVolumes(gBIOSDev, 0);␊ |
| 301 | bvChain = getBVChainForBIOSDev(gBIOSDev);␊ |
| 302 | setBootGlobals(bvChain);␊ |
| 303 | ␊ |
| 304 | // Load boot.plist config file␊ |
| 305 | status = loadSystemConfig(&bootInfo->bootConfig);␊ |
| 306 | ␊ |
| 307 | if ( getBoolForKey( kQuietBootKey, &quiet, &bootInfo->bootConfig ) && quiet ) {␊ |
| 308 | gBootMode |= kBootModeQuiet;␊ |
| 309 | }␊ |
| 310 | ␊ |
| 311 | // Override firstRun to get to the boot menu instantly by setting "Instant Menu"=y in system config␊ |
| 312 | if ( getBoolForKey( kInsantMenuKey, &instantMenu, &bootInfo->bootConfig ) && instantMenu ) {␊ |
| 313 | firstRun = FALSE;␊ |
| 314 | }␊ |
| 315 | ␊ |
| 316 | // Loading preboot ramdisk if exists.␊ |
| 317 | loadPrebootRAMDisk();␊ |
| 318 | ␊ |
| 319 | // Disable rescan option by default␊ |
| 320 | gEnableCDROMRescan = FALSE;␊ |
| 321 | ␊ |
| 322 | // Enable it with Rescan=y in system config␊ |
| 323 | if ( getBoolForKey( kRescanKey, &gEnableCDROMRescan, &bootInfo->bootConfig ) && gEnableCDROMRescan ) {␊ |
| 324 | gEnableCDROMRescan = TRUE;␊ |
| 325 | }␊ |
| 326 | ␊ |
| 327 | // Ask the user for Rescan option by setting "Rescan Prompt"=y in system config.␊ |
| 328 | rescanPrompt = FALSE;␊ |
| 329 | if ( getBoolForKey( kRescanPromptKey, &rescanPrompt , &bootInfo->bootConfig ) && rescanPrompt␊ |
| 330 | && biosDevIsCDROM(gBIOSDev) ) {␊ |
| 331 | gEnableCDROMRescan = promptForRescanOption();␊ |
| 332 | }␊ |
| 333 | ␊ |
| 334 | // Enable touching a single BIOS device only if "Scan Single Drive"=y is set in system config.␊ |
| 335 | if ( getBoolForKey( kScanSingleDriveKey, &gScanSingleDrive, &bootInfo->bootConfig ) && gScanSingleDrive ) {␊ |
| 336 | gScanSingleDrive = TRUE;␊ |
| 337 | }␊ |
| 338 | ␊ |
| 339 | // Create a list of partitions on device(s).␊ |
| 340 | if (gScanSingleDrive)␊ |
| 341 | scanBootVolumes( gBIOSDev, &bvCount );␊ |
| 342 | else␊ |
| 343 | scanDisks( gBIOSDev, &bvCount );␊ |
| 344 | ␊ |
| 345 | // Create a separated bvr chain using the specified filters.␊ |
| 346 | bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);␊ |
| 347 | ␊ |
| 348 | gBootVolume = selectBootVolume(bvChain);␊ |
| 349 | ␊ |
| 350 | #if DEBUG␊ |
| 351 | printf(" Default: %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBootVolume, gBootVolume->biosdev, gBootVolume->part_no, gBootVolume->flags);␊ |
| 352 | printf(" bt(0,0): %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBIOSBootVolume, gBIOSBootVolume->biosdev, gBIOSBootVolume->part_no, gBIOSBootVolume->flags);␊ |
| 353 | getc();␊ |
| 354 | #endif␊ |
| 355 | ␊ |
| 356 | ␉// Scan hardware configuration.␊ |
| 357 | scanHardware();␊ |
| 358 | ␉␊ |
| 359 | ␉// Check if GUI=n switch is present in config file␊ |
| 360 | if ( getBoolForKey(kGUIKey, &useGUI, &bootInfo->bootConfig) && !useGUI )␊ |
| 361 | useGUI = FALSE;␊ |
| 362 | ␉␉␊ |
| 363 | ␉// Before initGui, path the video bios with the correct resolution␊ |
| 364 | ␉␊ |
| 365 | ␉UInt32 x = 0, y = 0; ␊ |
| 366 | ␉UInt32 bp = 0;␊ |
| 367 | ␉␊ |
| 368 | ␉getResolution(&x, &y, &bp);␊ |
| 369 | ␉␊ |
| 370 | ␉␊ |
| 371 | ␉if (x!=0 && y!=0) {␊ |
| 372 | ␉␉vbios_map * map;␊ |
| 373 | ␊ |
| 374 | ␉␉map = open_vbios(CT_UNKWN);␊ |
| 375 | ␊ |
| 376 | ␉␉unlock_vbios(map);␊ |
| 377 | ␉␉␉␊ |
| 378 | ␉␉set_mode(map, x, y, bp, 0, 0);␊ |
| 379 | ␉␉␉␊ |
| 380 | ␉␉relock_vbios(map);␊ |
| 381 | ␉␉␉␊ |
| 382 | ␉␉close_vbios(map);␊ |
| 383 | ␊ |
| 384 | ␉␉verbose("Patched first resolution mode to %dx%d.\n", x, y);␊ |
| 385 | ␊ |
| 386 | ␉␉␉␊ |
| 387 | ␉}␊ |
| 388 | ␉␉␊ |
| 389 | ␉␊ |
| 390 | ␉//printf("Press any key to continue...");␊ |
| 391 | ␉//getc();␊ |
| 392 | ␊ |
| 393 | ␉␊ |
| 394 | ␉␊ |
| 395 | // Try initialising the GUI unless disabled␊ |
| 396 | if( useGUI )␊ |
| 397 | initGUI();␊ |
| 398 | ␊ |
| 399 | // Load boot logo image␊ |
| 400 | loadBootGraphics();␊ |
| 401 | ␊ |
| 402 | setBootGlobals(bvChain);␊ |
| 403 | ␊ |
| 404 | // Parse args, load and start kernel.␊ |
| 405 | while (1)␊ |
| 406 | {␊ |
| 407 | const char *val;␊ |
| 408 | int len;␊ |
| 409 | int trycache;␊ |
| 410 | long flags, cachetime, kerneltime, exttime, sleeptime, time;␊ |
| 411 | int ret = -1;␊ |
| 412 | void *binary = (void *)kLoadAddr;␊ |
| 413 | BOOL tryresume;␊ |
| 414 | BOOL tryresumedefault;␊ |
| 415 | BOOL forceresume;␊ |
| 416 | ␊ |
| 417 | config_file_t systemVersion;␉␉// system.plist of booting partition␊ |
| 418 | ␊ |
| 419 | // additional variable for testing alternate kernel image locations on boot helper partitions.␊ |
| 420 | char bootFileSpec[512];␊ |
| 421 | ␉␉␊ |
| 422 | // Initialize globals.␊ |
| 423 | ␊ |
| 424 | sysConfigValid = 0;␊ |
| 425 | gErrors = 0;␊ |
| 426 | ␊ |
| 427 | status = getBootOptions(firstRun);␊ |
| 428 | firstRun = NO;␊ |
| 429 | if (status == -1) continue;␊ |
| 430 | ␉␉ ␊ |
| 431 | status = processBootOptions();␊ |
| 432 | // Status==1 means to chainboot␊ |
| 433 | if ( status == 1 ) break;␊ |
| 434 | // Status==-1 means that the config file couldn't be loaded or that gBootVolume is NULL␊ |
| 435 | if ( status == -1 )␊ |
| 436 | {␊ |
| 437 | // gBootVolume == NULL usually means the user hit escape.␊ |
| 438 | if(gBootVolume == NULL)␊ |
| 439 | {␊ |
| 440 | freeFilteredBVChain(bvChain);␊ |
| 441 | ␊ |
| 442 | if (gEnableCDROMRescan)␊ |
| 443 | rescanBIOSDevice(gBIOSDev);␊ |
| 444 | ␊ |
| 445 | bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);␊ |
| 446 | setBootGlobals(bvChain);␊ |
| 447 | }␊ |
| 448 | continue;␊ |
| 449 | }␊ |
| 450 | ␉␉␊ |
| 451 | // Other status (e.g. 0) means that we should proceed with boot.␊ |
| 452 | ␉␉␊ |
| 453 | ␉␉if( bootArgs->Video.v_display == GRAPHICS_MODE )␊ |
| 454 | ␉␉␉drawBackground();␊ |
| 455 | ␉␉␉␊ |
| 456 | // Found and loaded a config file. Proceed with boot.␊ |
| 457 | ␊ |
| 458 | ␉␉// Turn off any GUI elements␊ |
| 459 | ␉␉if( bootArgs->Video.v_display == GRAPHICS_MODE )␊ |
| 460 | ␉␉{␊ |
| 461 | ␉␉␉gui.devicelist.draw = NO;␊ |
| 462 | ␉␉␉gui.bootprompt.draw = NO;␊ |
| 463 | ␉␉␉gui.menu.draw = NO;␊ |
| 464 | ␉␉␉gui.infobox.draw = NO;␊ |
| 465 | ␉␉␉drawBackground();␊ |
| 466 | ␉␉␉updateVRAM();␊ |
| 467 | ␉␉}␊ |
| 468 | ␉␉␊ |
| 469 | ␉␉// Find out which version mac os we're booting.␊ |
| 470 | ␉␉if (!loadConfigFile("System/Library/CoreServices/SystemVersion.plist", &systemVersion) )␊ |
| 471 | ␉␉␉if (getValueForKey("ProductVersion", &val, &len, &systemVersion))␊ |
| 472 | ␉␉␉{␉␊ |
| 473 | ␉␉␉␉// getValueForKey uses const char for val␊ |
| 474 | ␉␉␉␉// so copy it and trim␊ |
| 475 | ␉␉␉␉strncpy(gMacOSVersion, val, MIN(len, 4));␊ |
| 476 | ␉␉␉␉gMacOSVersion[MIN(len, 4)] = '\0';␊ |
| 477 | ␉␉␉}␊ |
| 478 | ␉␉␊ |
| 479 | ␉␉archCpuType=detectCpuType ();␊ |
| 480 | ␉␉if (getValueForKey("arch", &val, &len, &bootInfo->bootConfig))␊ |
| 481 | ␉␉{␊ |
| 482 | ␉␉␉if(strncmp(val,"x86_64",6) == 0)␊ |
| 483 | ␉␉␉␉archCpuType=CPU_TYPE_X86_64;␊ |
| 484 | ␉␉␉else␊ |
| 485 | ␉␉␉␉archCpuType=CPU_TYPE_I386;␊ |
| 486 | ␉␉}␊ |
| 487 | ␉␉␊ |
| 488 | ␉␉if (!getBoolForKey ("Wake", &tryresume, &bootInfo->bootConfig))␊ |
| 489 | ␉␉{␊ |
| 490 | ␉␉␉tryresume = TRUE;␊ |
| 491 | ␉␉␉tryresumedefault = TRUE;␊ |
| 492 | ␉␉}␊ |
| 493 | ␉␉else␊ |
| 494 | ␉␉␉tryresumedefault = FALSE;␊ |
| 495 | ␊ |
| 496 | ␉␉if (!getBoolForKey ("ForceWake", &forceresume, &bootInfo->bootConfig))␊ |
| 497 | ␉␉␉forceresume = FALSE;␊ |
| 498 | ␉␉␊ |
| 499 | ␉␉if (forceresume)␊ |
| 500 | ␉␉{␊ |
| 501 | ␉␉␉tryresume = TRUE;␊ |
| 502 | ␉␉␉tryresumedefault = FALSE;␊ |
| 503 | ␉␉}␊ |
| 504 | ␉␉␊ |
| 505 | ␉␉while (tryresume) {␊ |
| 506 | ␉␉␉const char *tmp;␊ |
| 507 | ␉␉␉BVRef bvr;␊ |
| 508 | ␉␉␉if (!getValueForKey("WakeImage", &val, &len, &bootInfo->bootConfig))␊ |
| 509 | ␉␉␉␉val="/private/var/vm/sleepimage";␊ |
| 510 | ␉␉␉␊ |
| 511 | ␉␉␉// Do this first to be sure that root volume is mounted␊ |
| 512 | ␉␉␉ret = GetFileInfo(0, val, &flags, &sleeptime);␊ |
| 513 | ␊ |
| 514 | ␉␉␉if ((bvr = getBootVolumeRef(val, &tmp)) == NULL)␊ |
| 515 | ␉␉␉␉break;␊ |
| 516 | ␉␉␉␊ |
| 517 | ␉␉␉// Can't check if it was hibernation Wake=y is required␊ |
| 518 | ␉␉␉if (bvr->modTime == 0 && tryresumedefault)␊ |
| 519 | ␉␉␉␉break;␊ |
| 520 | ␉␉␉␊ |
| 521 | ␉␉␉if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat))␊ |
| 522 | ␉␉␉␉break;␊ |
| 523 | ␉␉␉␊ |
| 524 | ␉␉␉if (!forceresume && sleeptime+3<bvr->modTime)␊ |
| 525 | ␉␉␉{␊ |
| 526 | ␉␉␉//␉printf ("Hibernate image is too old by %d seconds. Use ForceWake=y to override\n",bvr->modTime-sleeptime);␊ |
| 527 | ␉␉␉␉break;␊ |
| 528 | ␉␉␉}␊ |
| 529 | ␉␉␉␉␊ |
| 530 | ␉␉␉HibernateBoot((char *)val);␊ |
| 531 | ␉␉␉break;␊ |
| 532 | ␉␉}␊ |
| 533 | ␊ |
| 534 | // Reset cache name.␊ |
| 535 | bzero(gCacheNameAdler + 64, sizeof(gCacheNameAdler) - 64);␊ |
| 536 | ␊ |
| 537 | sprintf(gCacheNameAdler + 64, "%s,%s", gRootDevice, bootInfo->bootFile);␊ |
| 538 | ␊ |
| 539 | adler32 = Adler32((unsigned char *)gCacheNameAdler, sizeof(gCacheNameAdler));␊ |
| 540 | ␊ |
| 541 | if (getValueForKey(kKernelCacheKey, &val, &len, &bootInfo->bootConfig) == YES) {␊ |
| 542 | strlcpy(gBootKernelCacheFile, val, len+1);␊ |
| 543 | } else {␊ |
| 544 | sprintf(gBootKernelCacheFile, "%s.%08lX", kDefaultCachePath, adler32);␊ |
| 545 | }␊ |
| 546 | ␊ |
| 547 | // Check for cache file.␊ |
| 548 | trycache = (((gBootMode & kBootModeSafe) == 0) &&␊ |
| 549 | (gOverrideKernel == NO) &&␊ |
| 550 | (gBootFileType == kBlockDeviceType) &&␊ |
| 551 | (gMKextName[0] == '\0') &&␊ |
| 552 | (gBootKernelCacheFile[0] != '\0'));␊ |
| 553 | ␊ |
| 554 | ␉␉verbose("Loading Darwin %s\n", gMacOSVersion);␊ |
| 555 | ␉␉␊ |
| 556 | if (trycache) do {␊ |
| 557 | ␊ |
| 558 | // if we haven't found the kernel yet, don't use the cache␊ |
| 559 | ret = GetFileInfo(NULL, bootInfo->bootFile, &flags, &kerneltime);␊ |
| 560 | if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)) {␊ |
| 561 | trycache = 0;␊ |
| 562 | break;␊ |
| 563 | }␊ |
| 564 | ret = GetFileInfo(NULL, gBootKernelCacheFile, &flags, &cachetime);␊ |
| 565 | if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)␊ |
| 566 | || (cachetime < kerneltime)) {␊ |
| 567 | trycache = 0;␊ |
| 568 | break;␊ |
| 569 | }␊ |
| 570 | ret = GetFileInfo("/System/Library/", "Extensions", &flags, &exttime);␊ |
| 571 | if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeDirectory)␊ |
| 572 | && (cachetime < exttime)) {␊ |
| 573 | trycache = 0;␊ |
| 574 | break;␊ |
| 575 | }␊ |
| 576 | if (kerneltime > exttime) {␊ |
| 577 | exttime = kerneltime;␊ |
| 578 | }␊ |
| 579 | if (cachetime != (exttime + 1)) {␊ |
| 580 | trycache = 0;␊ |
| 581 | break;␊ |
| 582 | }␊ |
| 583 | } while (0);␊ |
| 584 | ␊ |
| 585 | do {␊ |
| 586 | if (trycache) {␊ |
| 587 | bootFile = gBootKernelCacheFile;␊ |
| 588 | verbose("Loading kernel cache %s\n", bootFile);␊ |
| 589 | ret = LoadFile(bootFile);␊ |
| 590 | binary = (void *)kLoadAddr;␊ |
| 591 | if (ret >= 0) {␊ |
| 592 | break;␊ |
| 593 | }␊ |
| 594 | }␊ |
| 595 | bootFile = bootInfo->bootFile;␊ |
| 596 | ␊ |
| 597 | // Try to load kernel image from alternate locations on boot helper partitions.␊ |
| 598 | sprintf(bootFileSpec, "com.apple.boot.P/%s", bootFile);␊ |
| 599 | ret = GetFileInfo(NULL, bootFileSpec, &flags, &time); ␊ |
| 600 | ␉ ␉ if (ret == -1)␊ |
| 601 | ␉ ␉ {␊ |
| 602 | sprintf(bootFileSpec, "com.apple.boot.R/%s", bootFile);␊ |
| 603 | ret = GetFileInfo(NULL, bootFileSpec, &flags, &time); ␊ |
| 604 | if (ret == -1)␊ |
| 605 | {␊ |
| 606 | sprintf(bootFileSpec, "com.apple.boot.S/%s", bootFile);␊ |
| 607 | ret = GetFileInfo(NULL, bootFileSpec, &flags, &time); ␊ |
| 608 | if (ret == -1)␊ |
| 609 | {␊ |
| 610 | // Not found any alternate locations, using the original kernel image path.␊ |
| 611 | strcpy(bootFileSpec, bootFile);␊ |
| 612 | }␊ |
| 613 | }␊ |
| 614 | }␊ |
| 615 | ␉␉␉␊ |
| 616 | verbose("Loading kernel %s\n", bootFileSpec);␊ |
| 617 | ret = LoadThinFatFile(bootFileSpec, &binary);␊ |
| 618 | if (ret <= 0 && archCpuType == CPU_TYPE_X86_64)␊ |
| 619 | {␊ |
| 620 | archCpuType = CPU_TYPE_I386;␊ |
| 621 | ret = LoadThinFatFile(bootFileSpec, &binary);␉␉␉␉␊ |
| 622 | }␊ |
| 623 | ␉␉␉␊ |
| 624 | } while (0);␊ |
| 625 | ␊ |
| 626 | clearActivityIndicator();␊ |
| 627 | #if DEBUG␊ |
| 628 | printf("Pausing...");␊ |
| 629 | sleep(8);␊ |
| 630 | #endif␊ |
| 631 | ␊ |
| 632 | if (ret <= 0)␊ |
| 633 | ␉␉{␊ |
| 634 | ␉␉␉printf("Can't find %s\n", bootFile);␊ |
| 635 | ␊ |
| 636 | ␉␉␉if(gui.initialised == YES)␊ |
| 637 | ␉␉␉{␊ |
| 638 | ␉␉␉␉sleep(1);␊ |
| 639 | ␉␉␉␉drawBackground();␊ |
| 640 | ␉␉␉␉gui.devicelist.draw = YES;␊ |
| 641 | ␉␉␉␉gui.redraw = YES;␊ |
| 642 | ␉␉␉}␊ |
| 643 | ␉␉␉␉␊ |
| 644 | if ( gBootFileType == kNetworkDeviceType )␊ |
| 645 | {␊ |
| 646 | // Return control back to PXE. Don't unload PXE base code.␊ |
| 647 | gUnloadPXEOnExit = 0;␊ |
| 648 | break;␊ |
| 649 | }␊ |
| 650 | ␉␉␉␊ |
| 651 | } else {␊ |
| 652 | /* Won't return if successful. */␊ |
| 653 | ret = ExecKernel(binary);␊ |
| 654 | }␊ |
| 655 | ␊ |
| 656 | } /* while(1) */␊ |
| 657 | ␊ |
| 658 | // chainboot␊ |
| 659 | if(status==1)␊ |
| 660 | ␉if(getVideoMode() == GRAPHICS_MODE) // if we are already in graphics-mode,␊ |
| 661 | ␉␉setVideoMode(VGA_TEXT_MODE, 0);␉// switch back to text mode␊ |
| 662 | ␉␊ |
| 663 | if ((gBootFileType == kNetworkDeviceType) && gUnloadPXEOnExit) {␊ |
| 664 | ␉nbpUnloadBaseCode();␊ |
| 665 | }␊ |
| 666 | }␊ |
| 667 | ␊ |
| 668 | /*!␊ |
| 669 | Selects a new BIOS device, taking care to update the global state appropriately.␊ |
| 670 | */␊ |
| 671 | /*␊ |
| 672 | static void selectBiosDevice(void)␊ |
| 673 | {␊ |
| 674 | struct DiskBVMap *oldMap = diskResetBootVolumes(gBIOSDev);␊ |
| 675 | CacheReset();␊ |
| 676 | diskFreeMap(oldMap);␊ |
| 677 | oldMap = NULL;␊ |
| 678 | ␊ |
| 679 | int dev = selectAlternateBootDevice(gBIOSDev);␊ |
| 680 | ␊ |
| 681 | BVRef bvchain = scanBootVolumes(dev, 0);␊ |
| 682 | BVRef bootVol = selectBootVolume(bvchain);␊ |
| 683 | gBootVolume = bootVol;␊ |
| 684 | setRootVolume(bootVol);␊ |
| 685 | gBIOSDev = dev;␊ |
| 686 | }␊ |
| 687 | */␊ |
| 688 | ␊ |
| 689 | #define BASE 65521L /* largest prime smaller than 65536 */␊ |
| 690 | #define NMAX 5000␊ |
| 691 | // NMAX (was 5521) the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1␊ |
| 692 | ␊ |
| 693 | #define DO1(buf,i) {s1 += buf[i]; s2 += s1;}␊ |
| 694 | #define DO2(buf,i) DO1(buf,i); DO1(buf,i+1);␊ |
| 695 | #define DO4(buf,i) DO2(buf,i); DO2(buf,i+2);␊ |
| 696 | #define DO8(buf,i) DO4(buf,i); DO4(buf,i+4);␊ |
| 697 | #define DO16(buf) DO8(buf,0); DO8(buf,8);␊ |
| 698 | ␊ |
| 699 | unsigned long Adler32(unsigned char *buf, long len)␊ |
| 700 | {␊ |
| 701 | unsigned long s1 = 1; // adler & 0xffff;␊ |
| 702 | unsigned long s2 = 0; // (adler >> 16) & 0xffff;␊ |
| 703 | unsigned long result;␊ |
| 704 | int k;␊ |
| 705 | ␊ |
| 706 | while (len > 0) {␊ |
| 707 | k = len < NMAX ? len : NMAX;␊ |
| 708 | len -= k;␊ |
| 709 | while (k >= 16) {␊ |
| 710 | DO16(buf);␊ |
| 711 | buf += 16;␊ |
| 712 | k -= 16;␊ |
| 713 | }␊ |
| 714 | if (k != 0) do {␊ |
| 715 | s1 += *buf++;␊ |
| 716 | s2 += s1;␊ |
| 717 | } while (--k);␊ |
| 718 | s1 %= BASE;␊ |
| 719 | s2 %= BASE;␊ |
| 720 | }␊ |
| 721 | result = (s2 << 16) | s1;␊ |
| 722 | return OSSwapHostToBigInt32(result);␊ |
| 723 | }␊ |
| 724 | |
