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 "platform.h"␊ |
61 | #include "autoresolution.h" //autoresolution␊ |
62 | #include "edid.h"␉␉␉//␉␉||␊ |
63 | #include "modules.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;␊ |
84 | ␊ |
85 | //static void selectBiosDevice(void);␊ |
86 | static unsigned long Adler32(unsigned char *buffer, long length);␊ |
87 | static bool checkOSVersion(const char * version);␊ |
88 | static bool getOSVersion();␊ |
89 | ␊ |
90 | static bool gUnloadPXEOnExit = false;␊ |
91 | ␊ |
92 | /*␊ |
93 | * How long to wait (in seconds) to load the␊ |
94 | * kernel after displaying the "boot:" prompt.␊ |
95 | */␊ |
96 | #define kBootErrorTimeout 5␊ |
97 | ␊ |
98 | ␊ |
99 | //==========================================================================␊ |
100 | // Zero the BSS.␊ |
101 | ␊ |
102 | static void zeroBSS(void)␊ |
103 | {␊ |
104 | ␉extern char _DATA__bss__begin, _DATA__bss__end;␊ |
105 | ␉extern char _DATA__common__begin, _DATA__common__end;␊ |
106 | ␊ |
107 | ␉bzero(&_DATA__bss__begin, (&_DATA__bss__end - &_DATA__bss__begin));␊ |
108 | ␉bzero(&_DATA__common__begin, (&_DATA__common__end - &_DATA__common__begin));␊ |
109 | }␊ |
110 | ␊ |
111 | //==========================================================================␊ |
112 | // Malloc error function␊ |
113 | ␊ |
114 | static void malloc_error(char *addr, size_t size, const char *file, int line)␊ |
115 | {␊ |
116 | ␉stop("\nMemory allocation error! Addr=0x%x, Size=0x%x, File=%s, Line=%d\n", (unsigned)addr, (unsigned)size, file, line);␊ |
117 | }␊ |
118 | ␊ |
119 | //==========================================================================␊ |
120 | //Initializes the runtime. Right now this means zeroing the BSS and initializing malloc.␊ |
121 | //␊ |
122 | void initialize_runtime(void)␊ |
123 | {␊ |
124 | ␉zeroBSS();␊ |
125 | ␉malloc_init(0, 0, 0, malloc_error);␊ |
126 | }␊ |
127 | ␊ |
128 | //==========================================================================␊ |
129 | // execKernel - Load the kernel image (mach-o) and jump to its entry point.␊ |
130 | ␊ |
131 | static int ExecKernel(void *binary)␊ |
132 | {␊ |
133 | ␉entry_t␉␉␉␉␉ kernelEntry;␊ |
134 | ␉int␉␉␉␉␉␉ ret;␊ |
135 | ␉␊ |
136 | ␉bootArgs->kaddr = bootArgs->ksize = 0;␊ |
137 | ␉execute_hook("ExecKernel", (void*)binary, NULL, NULL, NULL);␊ |
138 | ␉␊ |
139 | ␉ret = DecodeKernel(binary,␊ |
140 | ␉␉␉␉␉ &kernelEntry,␊ |
141 | ␉␉␉␉␉ (char **) &bootArgs->kaddr,␊ |
142 | ␉␉␉␉␉ (int *)&bootArgs->ksize );␊ |
143 | ␉␊ |
144 | ␉if ( ret != 0 )␊ |
145 | ␉␉return ret;␊ |
146 | ␉␊ |
147 | ␉// Reserve space for boot args␊ |
148 | ␉reserveKernBootStruct();␊ |
149 | ␉␊ |
150 | ␉// Notify modules that the kernel has been decoded␊ |
151 | ␉execute_hook("DecodedKernel", (void*)binary, NULL, NULL, NULL);␊ |
152 | ␉␊ |
153 | setupFakeEfi();␊ |
154 | ␊ |
155 | ␉// Load boot drivers from the specifed root path.␊ |
156 | //if (!gHaveKernelCache)␊ |
157 | LoadDrivers("/");␊ |
158 | ␉␊ |
159 | execute_hook("DriversLoaded", (void*)binary, NULL, NULL, NULL);␊ |
160 | ␊ |
161 | ␉clearActivityIndicator();␊ |
162 | ␉␊ |
163 | ␉if (gErrors) {␊ |
164 | ␉␉printf("Errors encountered while starting up the computer.\n");␊ |
165 | ␉␉printf("Pausing %d seconds...\n", kBootErrorTimeout);␊ |
166 | ␉␉sleep(kBootErrorTimeout);␊ |
167 | ␉}␊ |
168 | ␉␉␊ |
169 | ␉md0Ramdisk();␊ |
170 | ␉␊ |
171 | ␉verbose("Starting Darwin %s\n",( archCpuType == CPU_TYPE_I386 ) ? "x86" : "x86_64");␊ |
172 | ␉␊ |
173 | ␉// Cleanup the PXE base code.␊ |
174 | ␉␊ |
175 | ␉if ( (gBootFileType == kNetworkDeviceType) && gUnloadPXEOnExit ) {␊ |
176 | ␉␉if ( (ret = nbpUnloadBaseCode()) != nbpStatusSuccess )␊ |
177 | ␉␉{␊ |
178 | ␉␉␉printf("nbpUnloadBaseCode error %d\n", (int) ret);␊ |
179 | ␉␉␉sleep(2);␊ |
180 | ␉␉}␊ |
181 | ␉}␊ |
182 | ␉␊ |
183 | ␉bool dummyVal;␊ |
184 | ␉if (getBoolForKey(kWaitForKeypressKey, &dummyVal, &bootInfo->chameleonConfig) && dummyVal) {␊ |
185 | ␉␉printf("(Wait) ");␊ |
186 | ␉␉pause();␊ |
187 | ␉}␊ |
188 | ␉␊ |
189 | ␉usb_loop();␊ |
190 | ␉␊ |
191 | //autoresolution - Check if user disabled AutoResolution at the boot prompt.␊ |
192 | ␉getBoolForKey(kAutoResolutionKey, &gAutoResolution, &bootInfo->bootConfig); //Azi: bootConfig ??␊ |
193 | ␉␊ |
194 | ␉// User disabled AutoResolution at boot prompt...␊ |
195 | ␉if ((gAutoResolution == false) && map)␊ |
196 | ␉{␊ |
197 | ␉␉// restore and close Vbios for patch cancelation.␊ |
198 | ␉␉restoreVbios(map);␊ |
199 | ␉␉closeVbios(map);␊ |
200 | ␉}␊ |
201 | ␉␊ |
202 | ␉//Azi: while testing, i didn't got any problems when booting without␊ |
203 | ␉// closing Vbios... closing it just in case. (check again later!)␊ |
204 | ␉if ((gAutoResolution == true) && map)␊ |
205 | ␉{␊ |
206 | ␉␉closeVbios(map);␊ |
207 | ␊ |
208 | ␉␉// gAutoResolution was just set to false on closeVbios();␊ |
209 | ␉␉// we need it to be "true" for drawBootGraphics().␊ |
210 | ␉␉gAutoResolution = true;␊ |
211 | ␉}␊ |
212 | ␉␊ |
213 | ␉//Azi: closing Vbios after "if (gVerboseMode)" stuff eliminates the need for setting␊ |
214 | ␉// AutoResolution = true above; but creates another bug when booting in TextMode with -v arg.␊ |
215 | ␉// Simptoms include: staring some seconds at a nicely drawn white screen, after boot prompt.␊ |
216 | ␉// Think i'm just going to end up removing setting gAutoResolution = false␊ |
217 | ␉// on closeVbios().. the more i think, the less sense it makes doing it there!!␊ |
218 | //autoresolution - end␊ |
219 | ␉␊ |
220 | if (checkOSVersion("10.7"))␊ |
221 | {␊ |
222 | execute_hook("Kernel Start", (void*)kernelEntry, (void*)bootArgs, NULL, NULL);␉// Notify modules that the kernel is about to be started␊ |
223 | }␊ |
224 | else␊ |
225 | {␊ |
226 | execute_hook("Kernel Start", (void*)kernelEntry, (void*)bootArgsPreLion, NULL, NULL);␉// Notify modules that the kernel is about to be started␊ |
227 | }␊ |
228 | ␊ |
229 | ␉// If we were in text mode, switch to graphics mode.␊ |
230 | ␉// This will draw the boot graphics unless we are in␊ |
231 | ␉// verbose mode.␊ |
232 | ␉␊ |
233 | ␉if(gVerboseMode)␊ |
234 | ␉ setVideoMode( GRAPHICS_MODE, 0 );␊ |
235 | ␉else␊ |
236 | ␉ drawBootGraphics();␊ |
237 | ␉␊ |
238 | ␉setupBooterLog();␊ |
239 | ␉␊ |
240 | ␉finalizeBootStruct();␊ |
241 | ␉␊ |
242 | if (checkOSVersion("10.7")) {␊ |
243 | ␉␉␊ |
244 | ␉␉// Masking out so that Lion doesn't doublefault␊ |
245 | ␉␉outb(0x21, 0xff);␉/* Maskout all interrupts Pic1 */␊ |
246 | ␉␉outb(0xa1, 0xff);␉/* Maskout all interrupts Pic2 */␊ |
247 | ␉␉␊ |
248 | ␉␉// Jump to kernel's entry point. There's no going back now.␊ |
249 | ␉␉␊ |
250 | ␉␉startprog( kernelEntry, bootArgs );␊ |
251 | ␉}␊ |
252 | ␉else {␊ |
253 | ␉␉// Jump to kernel's entry point. There's no going back now.␊ |
254 | ␉␉␊ |
255 | ␉␉startprog( kernelEntry, bootArgsPreLion );␊ |
256 | ␉}␊ |
257 | ␉␊ |
258 | ␉// Not reached␊ |
259 | ␉return 0;␊ |
260 | }␊ |
261 | ␊ |
262 | //==========================================================================␊ |
263 | // This is the entrypoint from real-mode which functions exactly as it did␊ |
264 | // before. Multiboot does its own runtime initialization, does some of its␊ |
265 | // own things, and then calls common_boot.␊ |
266 | void boot(int biosdev)␊ |
267 | {␊ |
268 | ␉initialize_runtime();␊ |
269 | ␉// Enable A20 gate before accessing memory above 1Mb.␊ |
270 | ␉enableA20();␊ |
271 | ␉common_boot(biosdev);␊ |
272 | }␊ |
273 | ␊ |
274 | //==========================================================================␊ |
275 | // The 'main' function for the booter. Called by boot0 when booting␊ |
276 | // from a block device, or by the network booter.␊ |
277 | //␊ |
278 | // arguments:␊ |
279 | // biosdev - Value passed from boot1/NBP to specify the device␊ |
280 | // that the booter was loaded from.␊ |
281 | //␊ |
282 | // If biosdev is kBIOSDevNetwork, then this function will return if␊ |
283 | // booting was unsuccessful. This allows the PXE firmware to try the␊ |
284 | // next boot device on its list.␊ |
285 | void common_boot(int biosdev)␊ |
286 | {␊ |
287 | int status;␊ |
288 | char *bootFile;␊ |
289 | unsigned long adler32;␊ |
290 | bool quiet;␊ |
291 | bool firstRun = true;␊ |
292 | bool instantMenu;␊ |
293 | bool rescanPrompt;␊ |
294 | unsigned int allowBVFlags = kBVFlagSystemVolume | kBVFlagForeignBoot;␊ |
295 | unsigned int denyBVFlags = kBVFlagEFISystem;␊ |
296 | ␊ |
297 | // Set reminder to unload the PXE base code. Neglect to unload␊ |
298 | // the base code will result in a hang or kernel panic.␊ |
299 | gUnloadPXEOnExit = true;␊ |
300 | ␊ |
301 | // Record the device that the booter was loaded from.␊ |
302 | gBIOSDev = biosdev & kBIOSDevMask;␊ |
303 | ␊ |
304 | // Initialize boot info structure.␊ |
305 | initKernBootStruct();␊ |
306 | ␊ |
307 | ␉initBooterLog();␊ |
308 | ␊ |
309 | // Setup VGA text mode.␊ |
310 | // Not sure if it is safe to call setVideoMode() before the␊ |
311 | // config table has been loaded. Call video_mode() instead.␊ |
312 | #if DEBUG␊ |
313 | printf("before video_mode\n");␊ |
314 | #endif␊ |
315 | video_mode( 2 ); // 80x25 mono text mode.␊ |
316 | #if DEBUG␊ |
317 | printf("after video_mode\n");␊ |
318 | #endif␊ |
319 | ␊ |
320 | // Scan and record the system's hardware information.␊ |
321 | scan_platform();␊ |
322 | ␊ |
323 | // First get info for boot volume.␊ |
324 | scanBootVolumes(gBIOSDev, 0);␊ |
325 | bvChain = getBVChainForBIOSDev(gBIOSDev);␊ |
326 | setBootGlobals(bvChain);␊ |
327 | ␊ |
328 | // Load boot.plist config file␊ |
329 | status = loadChameleonConfig(&bootInfo->chameleonConfig);␊ |
330 | ␊ |
331 | if (getBoolForKey(kQuietBootKey, &quiet, &bootInfo->chameleonConfig) && quiet) {␊ |
332 | gBootMode |= kBootModeQuiet;␊ |
333 | }␊ |
334 | ␊ |
335 | // Override firstRun to get to the boot menu instantly by setting "Instant Menu"=y in system config␊ |
336 | if (getBoolForKey(kInsantMenuKey, &instantMenu, &bootInfo->chameleonConfig) && instantMenu) {␊ |
337 | firstRun = false;␊ |
338 | }␊ |
339 | ␊ |
340 | // Loading preboot ramdisk if exists.␊ |
341 | loadPrebootRAMDisk();␊ |
342 | ␊ |
343 | // Disable rescan option by default␊ |
344 | gEnableCDROMRescan = false;␊ |
345 | ␊ |
346 | // Enable it with Rescan=y in system config␊ |
347 | if (getBoolForKey(kRescanKey, &gEnableCDROMRescan, &bootInfo->chameleonConfig) && gEnableCDROMRescan) {␊ |
348 | gEnableCDROMRescan = true;␊ |
349 | }␊ |
350 | ␊ |
351 | // Ask the user for Rescan option by setting "Rescan Prompt"=y in system config.␊ |
352 | rescanPrompt = false;␊ |
353 | if (getBoolForKey(kRescanPromptKey, &rescanPrompt , &bootInfo->chameleonConfig) && rescanPrompt && biosDevIsCDROM(gBIOSDev)) {␊ |
354 | gEnableCDROMRescan = promptForRescanOption();␊ |
355 | }␊ |
356 | ␊ |
357 | // Enable touching a single BIOS device only if "Scan Single Drive"=y is set in system config.␊ |
358 | if (getBoolForKey(kScanSingleDriveKey, &gScanSingleDrive, &bootInfo->chameleonConfig) && gScanSingleDrive) {␊ |
359 | gScanSingleDrive = true;␊ |
360 | }␊ |
361 | ␊ |
362 | // Create a list of partitions on device(s).␊ |
363 | if (gScanSingleDrive) {␊ |
364 | scanBootVolumes(gBIOSDev, &bvCount);␊ |
365 | } else {␊ |
366 | scanDisks(gBIOSDev, &bvCount);␊ |
367 | }␊ |
368 | ␊ |
369 | // Create a separated bvr chain using the specified filters.␊ |
370 | bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);␊ |
371 | ␊ |
372 | gBootVolume = selectBootVolume(bvChain);␊ |
373 | ␊ |
374 | ␉// Intialize module system ␊ |
375 | ␉init_module_system();␊ |
376 | ␉␊ |
377 | #if DEBUG␊ |
378 | printf(" Default: %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBootVolume, gBootVolume->biosdev, gBootVolume->part_no, gBootVolume->flags);␊ |
379 | printf(" bt(0,0): %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBIOSBootVolume, gBIOSBootVolume->biosdev, gBIOSBootVolume->part_no, gBIOSBootVolume->flags);␊ |
380 | getchar();␊ |
381 | #endif␊ |
382 | ␊ |
383 | ␉useGUI = true;␊ |
384 | ␉// Override useGUI default␊ |
385 | ␉getBoolForKey(kGUIKey, &useGUI, &bootInfo->chameleonConfig);␊ |
386 | ␉␊ |
387 | //autoresolution - default to false␊ |
388 | ␉// http://forum.voodooprojects.org/index.php/topic,1227.0.html␊ |
389 | ␉gAutoResolution = false;␊ |
390 | ␊ |
391 | ␉// Check if user enabled AutoResolution on Boot.plist...␊ |
392 | ␉getBoolForKey(kAutoResolutionKey, &gAutoResolution, &bootInfo->bootConfig);␊ |
393 | ␊ |
394 | ␉// Patch the Video Bios with the extracted resolution, before initGui.␊ |
395 | ␉if (gAutoResolution == true)␊ |
396 | ␉{␊ |
397 | ␉␉paramsAR[3] = 0;␊ |
398 | ␊ |
399 | ␉␉// Open the Vbios and store Vbios or Tables␊ |
400 | ␉␉//Azi: doing this only if gAutoResolution = true␊ |
401 | ␉␉map = openVbios(CT_UNKWN);␊ |
402 | ␊ |
403 | ␉␉//Get resolution from Graphics Mode key...␊ |
404 | ␉␉int count = getNumberArrayFromProperty(kGraphicsModeKey, paramsAR, 4);␊ |
405 | ␉␉// ... or EDID.␊ |
406 | ␉␉if (count < 3)␊ |
407 | ␉␉{␊ |
408 | ␉␉␉getResolution(paramsAR); //Azi: hum...␊ |
409 | ␉␉␉// check the DEBUG/PRINT stuff... also on TEXT MODE (this is not printing to screen). ???␊ |
410 | ␉␉␉// don't forget we now have boot-log and it prints fine there.␊ |
411 | //Azi:autoresolution - these PRINT replace a previous existing #ifdef AUTORES_DEBUG␊ |
412 | // and were moved from gui.c, initGUI().␊ |
413 | ␉␉␉PRINT("Resolution: %dx%d (EDID)\n",paramsAR[0], paramsAR[1]);␊ |
414 | ␉␉}␊ |
415 | ␉␉else //Azi: check theme.plist ??␊ |
416 | ␉␉{␊ |
417 | ␉␉␉PRINT("Resolution: %dx%d (Graphics Mode key)\n",paramsAR[0], paramsAR[1]);␊ |
418 | ␊ |
419 | ␉␉␉//Azi: hum...␊ |
420 | ␉␉␉if ( paramsAR[2] == 256 ) paramsAR[2] = 8;␊ |
421 | ␉␉␉if ( paramsAR[2] == 555 ) paramsAR[2] = 16;␊ |
422 | ␉␉␉if ( paramsAR[2] == 888 ) paramsAR[2] = 32;␊ |
423 | ␉␉}␊ |
424 | ␊ |
425 | ␉␉// perfom the actual Vbios patching␊ |
426 | ␉␉if (paramsAR[0] != 0 && paramsAR[1] != 0)␊ |
427 | ␉␉{␊ |
428 | ␉␉␉patchVbios(map, paramsAR[0], paramsAR[1], paramsAR[2], 0, 0);␊ |
429 | ␉␉}␊ |
430 | ␊ |
431 | ␉␉//Azi: passing resolution for TEXT MODE "verbose" boot. (check again later!)***␊ |
432 | ␉␉if (bootArgs->Video.v_display == VGA_TEXT_MODE)␊ |
433 | ␉␉{␊ |
434 | ␉␉␉gui.screen.width = paramsAR[0];␊ |
435 | ␉␉␉gui.screen.height = paramsAR[1];␊ |
436 | ␉␉}␊ |
437 | ␊ |
438 | ␉␉// If the patch is working properly, we're almost done (we need? to close Vbios).␊ |
439 | ␉␉// If not and it's just a matter of wrong resolution, we can try re-apply the patch;␊ |
440 | ␉␉// see "case kF2Key:", options.c.␊ |
441 | ␉}␊ |
442 | //autoresolution - end␊ |
443 | ␉␊ |
444 | ␉if (useGUI && initGUI())␊ |
445 | ␉{␊ |
446 | ␉␉// initGUI() returned with an error, disabling GUI.␊ |
447 | ␉␉useGUI = false;␊ |
448 | ␉}␊ |
449 | ␊ |
450 | setBootGlobals(bvChain);␊ |
451 | ␊ |
452 | // Parse args, load and start kernel.␊ |
453 | while (1) {␊ |
454 | const char *val;␊ |
455 | int len;␊ |
456 | int trycache;␊ |
457 | long flags, cachetime, kerneltime, exttime, sleeptime, time;␊ |
458 | int ret = -1;␊ |
459 | void *binary = (void *)kLoadAddr;␊ |
460 | bool tryresume;␊ |
461 | bool tryresumedefault;␊ |
462 | bool forceresume;␊ |
463 | ␉␉bool usecache = false;//true;␊ |
464 | ␊ |
465 | // additional variable for testing alternate kernel image locations on boot helper partitions.␊ |
466 | char bootFileSpec[512];␊ |
467 | ␉␉␊ |
468 | // Initialize globals.␊ |
469 | ␊ |
470 | sysConfigValid = false;␊ |
471 | gErrors = false;␊ |
472 | ␊ |
473 | status = getBootOptions(firstRun);␊ |
474 | firstRun = false;␊ |
475 | if (status == -1) continue;␊ |
476 | ␉␉ ␊ |
477 | status = processBootOptions();␊ |
478 | // Status==1 means to chainboot␊ |
479 | if ( status == 1 ) break;␊ |
480 | // Status==-1 means that the config file couldn't be loaded or that gBootVolume is NULL␊ |
481 | if ( status == -1 )␊ |
482 | {␊ |
483 | // gBootVolume == NULL usually means the user hit escape.␊ |
484 | if(gBootVolume == NULL)␊ |
485 | {␊ |
486 | freeFilteredBVChain(bvChain);␊ |
487 | ␊ |
488 | if (gEnableCDROMRescan)␊ |
489 | rescanBIOSDevice(gBIOSDev);␊ |
490 | ␊ |
491 | bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);␊ |
492 | setBootGlobals(bvChain);␊ |
493 | setupDeviceList(&bootInfo->themeConfig);␊ |
494 | }␊ |
495 | continue;␊ |
496 | }␊ |
497 | ␉␉␊ |
498 | // Other status (e.g. 0) means that we should proceed with boot.␊ |
499 | ␉␉␊ |
500 | ␉␉// Turn off any GUI elements␊ |
501 | ␉␉if( bootArgs->Video.v_display == GRAPHICS_MODE )␊ |
502 | ␉␉{␊ |
503 | ␉␉␉gui.devicelist.draw = false;␊ |
504 | ␉␉␉gui.bootprompt.draw = false;␊ |
505 | ␉␉␉gui.menu.draw = false;␊ |
506 | ␉␉␉gui.infobox.draw = false;␊ |
507 | ␉␉␉gui.logo.draw = false;␊ |
508 | ␉␉␉drawBackground();␊ |
509 | ␉␉␉updateVRAM();␊ |
510 | ␉␉}␊ |
511 | ␉␉␊ |
512 | ␉␉//Azi: autoresolution stuff moved to ExecKernel();␊ |
513 | ␉␉// Closing Vbios here without restoring it, causes an allocation error.␊ |
514 | ␉␉␊ |
515 | ␉␉// Find out which version mac os we're booting.␊ |
516 | ␉␉getOSVersion();␊ |
517 | ␊ |
518 | ␉␉if (platformCPUFeature(CPU_FEATURE_EM64T)) {␊ |
519 | ␉␉␉archCpuType = CPU_TYPE_X86_64;␊ |
520 | ␉␉} else {␊ |
521 | ␉␉␉archCpuType = CPU_TYPE_I386;␊ |
522 | ␉␉}␊ |
523 | ␉␉if (getValueForKey(karch, &val, &len, &bootInfo->chameleonConfig)) {␊ |
524 | ␉␉␉if (strncmp(val, "i386", 4) == 0) {␊ |
525 | ␉␉␉␉archCpuType = CPU_TYPE_I386;␊ |
526 | ␉␉␉}␊ |
527 | ␉␉}␊ |
528 | ␊ |
529 | if (getValueForKey(kKernelArchKey, &val, &len, &bootInfo->chameleonConfig)) {␊ |
530 | ␉␉␉if (strncmp(val, "i386", 4) == 0) {␊ |
531 | ␉␉␉␉archCpuType = CPU_TYPE_I386;␊ |
532 | ␉␉␉}␊ |
533 | ␉␉}␊ |
534 | ␊ |
535 | //archCpuType = CPU_TYPE_I386;␊ |
536 | ␊ |
537 | ␉␉// Notify moduals that we are attempting to boot␊ |
538 | ␉␉execute_hook("PreBoot", NULL, NULL, NULL, NULL);␊ |
539 | ␊ |
540 | ␉␉if (!getBoolForKey (kWake, &tryresume, &bootInfo->chameleonConfig)) {␊ |
541 | ␉␉␉tryresume = true;␊ |
542 | ␉␉␉tryresumedefault = true;␊ |
543 | ␉␉} else {␊ |
544 | ␉␉␉tryresumedefault = false;␊ |
545 | ␉␉}␊ |
546 | ␊ |
547 | ␉␉if (!getBoolForKey (kForceWake, &forceresume, &bootInfo->chameleonConfig)) {␊ |
548 | ␉␉␉forceresume = false;␊ |
549 | ␉␉}␊ |
550 | ␉␉␊ |
551 | ␉␉if (forceresume) {␊ |
552 | ␉␉␉tryresume = true;␊ |
553 | ␉␉␉tryresumedefault = false;␊ |
554 | ␉␉}␊ |
555 | ␉␉␊ |
556 | ␉␉while (tryresume) {␊ |
557 | ␉␉␉const char *tmp;␊ |
558 | ␉␉␉BVRef bvr;␊ |
559 | ␉␉␉if (!getValueForKey(kWakeImage, &val, &len, &bootInfo->chameleonConfig))␊ |
560 | ␉␉␉␉val="/private/var/vm/sleepimage";␊ |
561 | ␉␉␉␊ |
562 | ␉␉␉// Do this first to be sure that root volume is mounted␊ |
563 | ␉␉␉ret = GetFileInfo(0, val, &flags, &sleeptime);␊ |
564 | ␊ |
565 | ␉␉␉if ((bvr = getBootVolumeRef(val, &tmp)) == NULL)␊ |
566 | ␉␉␉␉break;␊ |
567 | ␉␉␉␊ |
568 | ␉␉␉// Can't check if it was hibernation Wake=y is required␊ |
569 | ␉␉␉if (bvr->modTime == 0 && tryresumedefault)␊ |
570 | ␉␉␉␉break;␊ |
571 | ␉␉␉␊ |
572 | ␉␉␉if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat))␊ |
573 | ␉␉␉␉break;␊ |
574 | ␉␉␉␊ |
575 | ␉␉␉if (!forceresume && ((sleeptime+3)<bvr->modTime)) {␊ |
576 | ␉␉␉␉printf ("Hibernate image is too old by %d seconds. Use ForceWake=y to override\n",bvr->modTime-sleeptime);␊ |
577 | ␉␉␉␉break;␊ |
578 | ␉␉␉}␊ |
579 | ␉␉␉␉␊ |
580 | ␉␉␉HibernateBoot((char *)val);␊ |
581 | ␉␉␉break;␊ |
582 | ␉␉}␊ |
583 | ␊ |
584 | ␉␉getBoolForKey(kUseKernelCache, &usecache, &bootInfo->chameleonConfig);␊ |
585 | ␉␉if(usecache) {␊ |
586 | ␉␉␉if (getValueForKey(kKernelCacheKey, &val, &len, &bootInfo->bootConfig)) {␊ |
587 | if(val[0] == '\\')␊ |
588 | {␊ |
589 | len--;␊ |
590 | val++;␊ |
591 | }␊ |
592 | strlcpy(gBootKernelCacheFile, val, len+1);␊ |
593 | ␉␉␉}␊ |
594 | ␉␉␉else {␊ |
595 | ␉␉␉␉//Lion␊ |
596 | ␉␉␉␉if (checkOSVersion("10.7")) {␊ |
597 | ␉␉␉␉␉sprintf(gBootKernelCacheFile, "%skernelcache", kDefaultCachePathSnow);␊ |
598 | ␉␉␉␉}␊ |
599 | ␉␉␉␉// Snow Leopard␊ |
600 | ␉␉␉␉else if (checkOSVersion("10.6")) {␊ |
601 | ␉␉␉␉␉sprintf(gBootKernelCacheFile, "kernelcache_%s", (archCpuType == CPU_TYPE_I386) ? "i386" : "x86_64");␊ |
602 | ␉␉␉␉␉int lnam = sizeof(gBootKernelCacheFile) + 9; //with adler32␊ |
603 | ␉␉␉␉␉//Slice - TODO ???␊ |
604 | ␉␉␉␉␉// e.g. kernelcache_i386.E102928C.qSs0 = "unsaved" cache file.␊ |
605 | ␉␉␉␉␉//␊ |
606 | ␉␉␉␉␉// See kext_tools-180.2.1/kextcache_main.c:␊ |
607 | ␉␉␉␉␉// "Source directory has changed since starting; "␊ |
608 | ␉ // "not saving cache file %s."␊ |
609 | ␉␉␉␉␉// or␊ |
610 | ␉␉␉␉␉// "Source kernel has changed since starting; "␊ |
611 | ␉ // "not saving cache file %s."␊ |
612 | ␉␉␉␉␉␊ |
613 | ␉␉␉␉␉char* name;␊ |
614 | ␉␉␉␉␉long prev_time = 0;␊ |
615 | ␉␉␉␉␉␊ |
616 | ␉␉␉␉␉struct dirstuff* cacheDir = opendir(kDefaultCachePathSnow);␊ |
617 | ␉␉␉␉␉␊ |
618 | ␉␉␉␉␉while(readdir(cacheDir, (const char**)&name, &flags, &time) >= 0)␊ |
619 | ␉␉␉␉␉{␊ |
620 | ␉␉␉␉␉␉if(((flags & kFileTypeMask) != kFileTypeDirectory) && time > prev_time && strstr(name, gBootKernelCacheFile) && (name[lnam] != '.'))␊ |
621 | ␉␉␉␉␉␉{␊ |
622 | ␉␉␉␉␉␉␉sprintf(gBootKernelCacheFile, "%s%s", kDefaultCachePathSnow, name);␊ |
623 | ␉␉␉␉␉␉␉prev_time = time;␊ |
624 | ␉␉␉␉␉␉}␊ |
625 | ␉␉␉␉␉}␊ |
626 | ␉␉␉␉}␊ |
627 | ␉␉␉␉else {␊ |
628 | ␉␉␉␉␉// Reset cache name.␊ |
629 | ␉␉␉␉␉bzero(gCacheNameAdler + 64, sizeof(gCacheNameAdler) - 64);␊ |
630 | ␉␉␉␉␉␊ |
631 | ␉␉␉␉␉sprintf(gCacheNameAdler + 64, "%s,%s", gRootDevice, bootInfo->chameleonConfig);␊ |
632 | ␉␉␉␉␉␊ |
633 | ␉␉␉␉␉adler32 = Adler32((unsigned char *)gCacheNameAdler, sizeof(gCacheNameAdler));␊ |
634 | ␉␉␉␉␉␊ |
635 | ␉␉␉␉␉sprintf(gBootKernelCacheFile, "%s.%08lX", kDefaultCachePathLeo, adler32);␊ |
636 | ␉␉␉␉}␊ |
637 | ␉␉␉}␊ |
638 | ␉␉}␊ |
639 | ␉␉␉␊ |
640 | // Check for cache file.␊ |
641 | trycache = (usecache && ␊ |
642 | ␉␉␉␉␉((gBootMode & kBootModeSafe) == 0) &&␊ |
643 | !gOverrideKernel &&␊ |
644 | (gBootFileType == kBlockDeviceType) &&␊ |
645 | (gMKextName[0] == '\0') &&␊ |
646 | (gBootKernelCacheFile[0] != '\0'));␊ |
647 | ␊ |
648 | ␉␉verbose("Loading Darwin %s\n", gMacOSVersion);␊ |
649 | ␉␉␊ |
650 | if (trycache) do {␊ |
651 | ret = GetFileInfo(NULL, bootInfo->bootFile, &flags, &kerneltime);␊ |
652 | if(ret != 0) kerneltime = 0;␊ |
653 | else if ((flags & kFileTypeMask) != kFileTypeFlat) {␊ |
654 | trycache = 0;␊ |
655 | break;␊ |
656 | }␊ |
657 | ␊ |
658 | ret = GetFileInfo(NULL, gBootKernelCacheFile, &flags, &cachetime);␊ |
659 | if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)␊ |
660 | || (cachetime < kerneltime)) {␊ |
661 | trycache = 0;␊ |
662 | break;␊ |
663 | }␊ |
664 | ret = GetFileInfo("/System/Library/", "Extensions", &flags, &exttime);␊ |
665 | if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeDirectory)␊ |
666 | && (cachetime < exttime)) {␊ |
667 | trycache = 0;␊ |
668 | break;␊ |
669 | }␊ |
670 | if (ret == 0 && kerneltime > exttime) {␊ |
671 | exttime = kerneltime;␊ |
672 | }␊ |
673 | if (ret == 0 && cachetime != (exttime + 1)) {␊ |
674 | trycache = 0;␊ |
675 | break;␊ |
676 | }␊ |
677 | } while (0);␊ |
678 | ␊ |
679 | do {␊ |
680 | if (trycache) {␊ |
681 | bootFile = gBootKernelCacheFile;␊ |
682 | ␊ |
683 | ␉␉␉␉verbose("Loading kernel cache %s\n", bootFile);␊ |
684 | ␊ |
685 | if (checkOSVersion("10.7")) {␊ |
686 | ret = LoadThinFatFile(bootFile, &binary);␊ |
687 | ␉␉␉␉}␊ |
688 | ␉␉␉␉else {␊ |
689 | ␉ret = LoadFile(bootFile);␊ |
690 | ␉␉␉␉␉binary = (void *)kLoadAddr;␊ |
691 | ␉␉␉␉}␊ |
692 | ␉␉␉␉␊ |
693 | if (ret >= 0)␊ |
694 | break;␊ |
695 | ␉␉␉␉␊ |
696 | ␉␉␉␉verbose("Kernel cache did not load %s\n ", bootFile);␊ |
697 | }␊ |
698 | ␉␉␉␊ |
699 | bootFile = bootInfo->bootFile;␊ |
700 | ␊ |
701 | // Try to load kernel image from alternate locations on boot helper partitions.␊ |
702 | sprintf(bootFileSpec, "com.apple.boot.P/%s", bootFile);␊ |
703 | ret = GetFileInfo(NULL, bootFileSpec, &flags, &time); ␊ |
704 | ␉ ␉ if (ret == -1)␊ |
705 | ␉ ␉ {␊ |
706 | sprintf(bootFileSpec, "com.apple.boot.R/%s", bootFile);␊ |
707 | ret = GetFileInfo(NULL, bootFileSpec, &flags, &time); ␊ |
708 | if (ret == -1)␊ |
709 | {␊ |
710 | sprintf(bootFileSpec, "com.apple.boot.S/%s", bootFile);␊ |
711 | ret = GetFileInfo(NULL, bootFileSpec, &flags, &time); ␊ |
712 | if (ret == -1)␊ |
713 | {␊ |
714 | // No alternate location found, using the original kernel image path.␊ |
715 | strcpy(bootFileSpec, bootFile);␊ |
716 | }␊ |
717 | }␊ |
718 | }␊ |
719 | ␉␉␉␊ |
720 | if (checkOSVersion("10.7"))␊ |
721 | {␊ |
722 | //Lion, dont load kernel if haz cache␊ |
723 | if (!trycache) {␊ |
724 | ␉␉verbose("Loading kernel %s\n", bootFileSpec);␊ |
725 | ␉␉ret = LoadThinFatFile(bootFileSpec, &binary);␊ |
726 | ␉␉if (ret <= 0 && archCpuType == CPU_TYPE_X86_64) {␊ |
727 | ␉␉␉archCpuType = CPU_TYPE_I386;␊ |
728 | ␉␉␉ret = LoadThinFatFile(bootFileSpec, &binary);␉␉␉␉␊ |
729 | ␉␉}␊ |
730 | ␉␉ } ␊ |
731 | ␉␉␉␉else ret = 1;␊ |
732 | } ␊ |
733 | ␉␉␉else {␊ |
734 | //Snow Leopard or older␊ |
735 | verbose("Loading kernel %s\n", bootFileSpec);␊ |
736 | ret = LoadThinFatFile(bootFileSpec, &binary);␊ |
737 | if (ret <= 0 && archCpuType == CPU_TYPE_X86_64) {␊ |
738 | archCpuType = CPU_TYPE_I386;␊ |
739 | ret = LoadThinFatFile(bootFileSpec, &binary);␉␉␉␉␊ |
740 | }␊ |
741 | }␊ |
742 | } while (0);␊ |
743 | ␊ |
744 | clearActivityIndicator();␊ |
745 | #if DEBUG␊ |
746 | printf("Pausing...");␊ |
747 | sleep(8);␊ |
748 | #endif␊ |
749 | ␊ |
750 | if (ret <= 0) {␊ |
751 | ␉␉␉printf("Can't find %s\n", bootFile);␊ |
752 | ␊ |
753 | ␉␉␉sleep(1);␊ |
754 | ␊ |
755 | if (gBootFileType == kNetworkDeviceType) {␊ |
756 | // Return control back to PXE. Don't unload PXE base code.␊ |
757 | gUnloadPXEOnExit = false;␊ |
758 | break;␊ |
759 | }␊ |
760 | } else {␊ |
761 | /* Won't return if successful. */␊ |
762 | ret = ExecKernel(binary);␊ |
763 | }␊ |
764 | }␊ |
765 | ␊ |
766 | // chainboot␊ |
767 | if (status==1) {␊ |
768 | ␉␉if (getVideoMode() == GRAPHICS_MODE) {␉// if we are already in graphics-mode,␊ |
769 | ␉␉␉setVideoMode(VGA_TEXT_MODE, 0);␉// switch back to text mode␊ |
770 | ␉␉}␊ |
771 | }␊ |
772 | ␉␊ |
773 | if ((gBootFileType == kNetworkDeviceType) && gUnloadPXEOnExit) {␊ |
774 | ␉␉nbpUnloadBaseCode();␊ |
775 | }␊ |
776 | }␊ |
777 | ␊ |
778 | /*!␊ |
779 | Selects a new BIOS device, taking care to update the global state appropriately.␊ |
780 | */␊ |
781 | /*␊ |
782 | static void selectBiosDevice(void)␊ |
783 | {␊ |
784 | struct DiskBVMap *oldMap = diskResetBootVolumes(gBIOSDev);␊ |
785 | CacheReset();␊ |
786 | diskFreeMap(oldMap);␊ |
787 | oldMap = NULL;␊ |
788 | ␊ |
789 | int dev = selectAlternateBootDevice(gBIOSDev);␊ |
790 | ␊ |
791 | BVRef bvchain = scanBootVolumes(dev, 0);␊ |
792 | BVRef bootVol = selectBootVolume(bvchain);␊ |
793 | gBootVolume = bootVol;␊ |
794 | setRootVolume(bootVol);␊ |
795 | gBIOSDev = dev;␊ |
796 | }␊ |
797 | */␊ |
798 | ␊ |
799 | bool checkOSVersion(const char * version) ␊ |
800 | {␊ |
801 | ␉return ((gMacOSVersion[0] == version[0]) && (gMacOSVersion[1] == version[1]) && (gMacOSVersion[2] == version[2]) && (gMacOSVersion[3] == version[3]));␊ |
802 | }␊ |
803 | ␊ |
804 | bool getOSVersion()␊ |
805 | {␊ |
806 | ␉bool valid = false;␊ |
807 | ␉config_file_t systemVersion;␊ |
808 | ␉const char *val;␊ |
809 | ␉int len;␊ |
810 | ␉␊ |
811 | ␉if (!loadConfigFile("System/Library/CoreServices/SystemVersion.plist", &systemVersion))␊ |
812 | ␉{␊ |
813 | ␉␉valid = true;␊ |
814 | ␉}␊ |
815 | ␉else if (!loadConfigFile("System/Library/CoreServices/ServerVersion.plist", &systemVersion))␊ |
816 | ␉{␊ |
817 | ␉␉valid = true;␊ |
818 | ␉}␊ |
819 | ␉␊ |
820 | ␉if (valid)␊ |
821 | ␉{␊ |
822 | ␉␉if (getValueForKey(kProductVersion, &val, &len, &systemVersion))␊ |
823 | ␉␉{␊ |
824 | ␉␉␉// getValueForKey uses const char for val␊ |
825 | ␉␉␉// so copy it and trim␊ |
826 | ␉␉␉*gMacOSVersion = '\0';␊ |
827 | ␉␉␉strncat(gMacOSVersion, val, MIN(len, 4));␊ |
828 | ␉␉}␊ |
829 | ␉␉else␊ |
830 | ␉␉␉valid = false;␊ |
831 | ␉}␊ |
832 | ␉␊ |
833 | ␉return valid;␊ |
834 | }␊ |
835 | ␊ |
836 | #define BASE 65521L /* largest prime smaller than 65536 */␊ |
837 | #define NMAX 5000␊ |
838 | // NMAX (was 5521) the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1␊ |
839 | ␊ |
840 | #define DO1(buf,i) {s1 += buf[i]; s2 += s1;}␊ |
841 | #define DO2(buf,i) DO1(buf,i); DO1(buf,i+1);␊ |
842 | #define DO4(buf,i) DO2(buf,i); DO2(buf,i+2);␊ |
843 | #define DO8(buf,i) DO4(buf,i); DO4(buf,i+4);␊ |
844 | #define DO16(buf) DO8(buf,0); DO8(buf,8);␊ |
845 | ␊ |
846 | unsigned long Adler32(unsigned char *buf, long len)␊ |
847 | {␊ |
848 | unsigned long s1 = 1; // adler & 0xffff;␊ |
849 | unsigned long s2 = 0; // (adler >> 16) & 0xffff;␊ |
850 | unsigned long result;␊ |
851 | int k;␊ |
852 | ␊ |
853 | while (len > 0) {␊ |
854 | k = len < NMAX ? len : NMAX;␊ |
855 | len -= k;␊ |
856 | while (k >= 16) {␊ |
857 | DO16(buf);␊ |
858 | buf += 16;␊ |
859 | k -= 16;␊ |
860 | }␊ |
861 | if (k != 0) do {␊ |
862 | s1 += *buf++;␊ |
863 | s2 += s1;␊ |
864 | } while (--k);␊ |
865 | s1 %= BASE;␊ |
866 | s2 %= BASE;␊ |
867 | }␊ |
868 | result = (s2 << 16) | s1;␊ |
869 | return OSSwapHostToBigInt32(result);␊ |
870 | }␊ |
871 | |