| 1 | /* |
| 2 | * Copyright (c) 2004-2008 Apple Computer, 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 | |
| 30 | /* |
| 31 | |
| 32 | Sleep: |
| 33 | |
| 34 | - PMRootDomain calls IOHibernateSystemSleep() before system sleep |
| 35 | (devices awake, normal execution context) |
| 36 | - IOHibernateSystemSleep opens the hibernation file (or partition) at the bsd level, |
| 37 | grabs its extents and searches for a polling driver willing to work with that IOMedia. |
| 38 | The BSD code makes an ioctl to the storage driver to get the partition base offset to |
| 39 | the disk, and other ioctls to get the transfer constraints |
| 40 | If successful, the file is written to make sure its initially not bootable (in case of |
| 41 | later failure) and nvram set to point to the first block of the file. (Has to be done |
| 42 | here so blocking is possible in nvram support). |
| 43 | hibernate_setup() in osfmk is called to allocate page bitmaps for all dram, and |
| 44 | page out any pages it wants to (currently zero, but probably some percentage of memory). |
| 45 | Its assumed just allocating pages will cause the VM system to naturally select the best |
| 46 | pages for eviction. It also copies processor flags needed for the restore path and sets |
| 47 | a flag in the boot processor proc info. |
| 48 | gIOHibernateState = kIOHibernateStateHibernating. |
| 49 | - Regular sleep progresses - some drivers may inspect the root domain property |
| 50 | kIOHibernateStateKey to modify behavior. The platform driver saves state to memory |
| 51 | as usual but leaves motherboard I/O on. |
| 52 | - Eventually the platform calls ml_ppc_sleep() in the shutdown context on the last cpu, |
| 53 | at which point memory is ready to be saved. mapping_hibernate_flush() is called to get |
| 54 | all ppc RC bits out of the hash table and caches into the mapping structures. |
| 55 | - hibernate_write_image() is called (still in shutdown context, no blocking or preemption). |
| 56 | hibernate_page_list_setall() is called to get a bitmap of dram pages that need to be saved. |
| 57 | All pages are assumed to be saved (as part of the wired image) unless explicitly subtracted |
| 58 | by hibernate_page_list_setall(), avoiding having to find arch dependent low level bits. |
| 59 | The image header and block list are written. The header includes the second file extent so |
| 60 | only the header block is needed to read the file, regardless of filesystem. |
| 61 | The kernel section "__HIB" is written uncompressed to the image. This section of code and data |
| 62 | (only) is used to decompress the image during wake/boot. |
| 63 | Some additional pages are removed from the bitmaps - the buffers used for hibernation. |
| 64 | The bitmaps are written to the image. |
| 65 | More areas are removed from the bitmaps (after they have been written to the image) - the |
| 66 | section "__HIB" pages and interrupt stack. |
| 67 | Each wired page is compressed and written and then each non-wired page. Compression and |
| 68 | disk writes are in parallel. |
| 69 | The image header is written to the start of the file and the polling driver closed. |
| 70 | The machine powers down (or sleeps). |
| 71 | |
| 72 | Boot/Wake: |
| 73 | |
| 74 | - BootX sees the boot-image nvram variable containing the device and block number of the image, |
| 75 | reads the header and if the signature is correct proceeds. The boot-image variable is cleared. |
| 76 | - BootX reads the portion of the image used for wired pages, to memory. Its assumed this will fit |
| 77 | in the OF memory environment, and the image is decrypted. There is no decompression in BootX, |
| 78 | that is in the kernel's __HIB section. |
| 79 | - BootX copies the "__HIB" section to its correct position in memory, quiesces and calls its entry |
| 80 | hibernate_kernel_entrypoint(), passing the location of the image in memory. Translation is off, |
| 81 | only code & data in that section is safe to call since all the other wired pages are still |
| 82 | compressed in the image. |
| 83 | - hibernate_kernel_entrypoint() removes pages occupied by the raw image from the page bitmaps. |
| 84 | It uses the bitmaps to work out which pages can be uncompressed from the image to their final |
| 85 | location directly, and copies those that can't to interim free pages. When the image has been |
| 86 | completed, the copies are uncompressed, overwriting the wired image pages. |
| 87 | hibernate_restore_phys_page() (in osfmk since its arch dependent, but part of the "__HIB" section) |
| 88 | is used to get pages into place for 64bit. |
| 89 | - the reset vector is called (at least on ppc), the kernel proceeds on a normal wake, with some |
| 90 | changes conditional on the per proc flag - before VM is turned on the boot cpu, all mappings |
| 91 | are removed from the software strutures, and the hash table is reinitialized. |
| 92 | - After the platform CPU init code is called, hibernate_machine_init() is called to restore the rest |
| 93 | of memory, using the polled mode driver, before other threads can run or any devices are turned on. |
| 94 | This reduces the memory usage for BootX and allows decompression in parallel with disk reads, |
| 95 | for the remaining non wired pages. |
| 96 | - The polling driver is closed down and regular wake proceeds. When the kernel calls iokit to wake |
| 97 | (normal execution context) hibernate_teardown() in osmfk is called to release any memory, the file |
| 98 | is closed via bsd. |
| 99 | |
| 100 | Polled Mode I/O: |
| 101 | |
| 102 | IOHibernateSystemSleep() finds a polled mode interface to the ATA controller via a property in the |
| 103 | registry, specifying an object of calls IOPolledInterface. |
| 104 | |
| 105 | Before the system goes to sleep it searches from the IOMedia object (could be a filesystem or |
| 106 | partition) that the image is going to live, looking for polled interface properties. If it finds |
| 107 | one the IOMedia object is passed to a "probe" call for the interface to accept or reject. All the |
| 108 | interfaces found are kept in an ordered list. |
| 109 | |
| 110 | There is an Open/Close pair of calls made to each of the interfaces at various stages since there are |
| 111 | few different contexts things happen in: |
| 112 | |
| 113 | - there is an Open/Close (Preflight) made before any part of the system has slept (I/O is all |
| 114 | up and running) and after wake - this is safe to allocate memory and do anything. The device |
| 115 | ignores sleep requests from that point since its a waste of time if it goes to sleep and |
| 116 | immediately wakes back up for the image write. |
| 117 | |
| 118 | - there is an Open/Close (BeforeSleep) pair made around the image write operations that happen |
| 119 | immediately before sleep. These can't block or allocate memory - the I/O system is asleep apart |
| 120 | from the low level bits (motherboard I/O etc). There is only one thread running. The close can be |
| 121 | used to flush and set the disk to sleep. |
| 122 | |
| 123 | - there is an Open/Close (AfterSleep) pair made around the image read operations that happen |
| 124 | immediately after sleep. These can't block or allocate memory. This is happening after the platform |
| 125 | expert has woken the low level bits of the system, but most of the I/O system has not. There is only |
| 126 | one thread running. |
| 127 | |
| 128 | For the actual I/O, all the ops are with respect to a single IOMemoryDescriptor that was passed |
| 129 | (prepared) to the Preflight Open() call. There is a read/write op, buffer offset to the IOMD for |
| 130 | the data, an offset to the disk and length (block aligned 64 bit numbers), and completion callback. |
| 131 | Each I/O is async but only one is ever outstanding. The polled interface has a checkForWork call |
| 132 | that is called for the hardware to check for events, and complete the I/O via the callback. |
| 133 | The hibernate path uses the same transfer constraints the regular cluster I/O path in BSD uses |
| 134 | to restrict I/O ops. |
| 135 | */ |
| 136 | |
| 137 | #include <sys/systm.h> |
| 138 | |
| 139 | #include <IOKit/IOWorkLoop.h> |
| 140 | #include <IOKit/IOCommandGate.h> |
| 141 | #include <IOKit/IOTimerEventSource.h> |
| 142 | #include <IOKit/IOPlatformExpert.h> |
| 143 | #include <IOKit/IOKitDebug.h> |
| 144 | #include <IOKit/IOTimeStamp.h> |
| 145 | #include <IOKit/pwr_mgt/RootDomain.h> |
| 146 | #include <IOKit/pwr_mgt/IOPMPrivate.h> |
| 147 | #include <IOKit/IOMessage.h> |
| 148 | #include <IOKit/IODeviceTreeSupport.h> |
| 149 | #include <IOKit/IOBSD.h> |
| 150 | #include "RootDomainUserClient.h" |
| 151 | #include <IOKit/pwr_mgt/IOPowerConnection.h> |
| 152 | #include "IOPMPowerStateQueue.h" |
| 153 | #include <IOKit/IOBufferMemoryDescriptor.h> |
| 154 | #include <crypto/aes.h> |
| 155 | |
| 156 | #include <sys/uio.h> |
| 157 | #include <sys/conf.h> |
| 158 | #include <sys/stat.h> |
| 159 | #include <sys/fcntl.h> // (FWRITE, ...) |
| 160 | #include <sys/sysctl.h> |
| 161 | |
| 162 | #include <IOKit/IOHibernatePrivate.h> |
| 163 | #include <IOKit/IOPolledInterface.h> |
| 164 | #include <IOKit/IONVRAM.h> |
| 165 | #include "IOHibernateInternal.h" |
| 166 | #include "WKdm.h" |
| 167 | #include "IOKitKernelInternal.h" |
| 168 | |
| 169 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 170 | |
| 171 | extern unsigned int save_kdebug_enable; |
| 172 | extern uint32_t gIOHibernateState; |
| 173 | uint32_t gIOHibernateMode; |
| 174 | static char gIOHibernateBootSignature[256+1]; |
| 175 | static char gIOHibernateFilename[MAXPATHLEN+1]; |
| 176 | static uint32_t gIOHibernateFreeRatio = 0; // free page target (percent) |
| 177 | uint32_t gIOHibernateFreeTime = 0*1000; // max time to spend freeing pages (ms) |
| 178 | |
| 179 | static IODTNVRAM * gIOOptionsEntry; |
| 180 | static IORegistryEntry * gIOChosenEntry; |
| 181 | #if defined(__i386__) || defined(__x86_64__) |
| 182 | static const OSSymbol * gIOCreateEFIDevicePathSymbol; |
| 183 | #endif |
| 184 | |
| 185 | static IOPolledFileIOVars gFileVars; |
| 186 | static IOHibernateVars gIOHibernateVars; |
| 187 | static struct kern_direct_file_io_ref_t * gIOHibernateFileRef; |
| 188 | static hibernate_cryptvars_t gIOHibernateCryptWakeContext; |
| 189 | |
| 190 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 191 | |
| 192 | enum { kXPRamAudioVolume = 8 }; |
| 193 | enum { kDefaultIOSize = 128 * 1024 }; |
| 194 | enum { kVideoMapSize = 32 * 1024 * 1024 }; |
| 195 | |
| 196 | #ifndef kIOMediaPreferredBlockSizeKey |
| 197 | #define kIOMediaPreferredBlockSizeKey "Preferred Block Size" |
| 198 | #endif |
| 199 | |
| 200 | #ifndef kIOBootPathKey |
| 201 | #define kIOBootPathKey "bootpath" |
| 202 | #endif |
| 203 | #ifndef kIOSelectedBootDeviceKey |
| 204 | #define kIOSelectedBootDeviceKey "boot-device" |
| 205 | #endif |
| 206 | |
| 207 | |
| 208 | enum { kIOHibernateMinPollersNeeded = 2 }; |
| 209 | |
| 210 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 211 | |
| 212 | // copy from phys addr to MD |
| 213 | |
| 214 | static IOReturn |
| 215 | IOMemoryDescriptorWriteFromPhysical(IOMemoryDescriptor * md, |
| 216 | IOByteCount offset, addr64_t bytes, IOByteCount length) |
| 217 | { |
| 218 | addr64_t srcAddr = bytes; |
| 219 | IOByteCount remaining; |
| 220 | |
| 221 | remaining = length = min(length, md->getLength() - offset); |
| 222 | while (remaining) { // (process another target segment?) |
| 223 | addr64_t dstAddr64; |
| 224 | IOByteCount dstLen; |
| 225 | |
| 226 | dstAddr64 = md->getPhysicalSegment(offset, &dstLen, kIOMemoryMapperNone); |
| 227 | if (!dstAddr64) |
| 228 | break; |
| 229 | |
| 230 | // Clip segment length to remaining |
| 231 | if (dstLen > remaining) |
| 232 | dstLen = remaining; |
| 233 | |
| 234 | #if 1 |
| 235 | bcopy_phys(srcAddr, dstAddr64, dstLen); |
| 236 | #else |
| 237 | copypv(srcAddr, dstAddr64, dstLen, |
| 238 | cppvPsnk | cppvFsnk | cppvNoRefSrc | cppvNoModSnk | cppvKmap); |
| 239 | #endif |
| 240 | srcAddr += dstLen; |
| 241 | offset += dstLen; |
| 242 | remaining -= dstLen; |
| 243 | } |
| 244 | |
| 245 | assert(!remaining); |
| 246 | |
| 247 | return remaining ? kIOReturnUnderrun : kIOReturnSuccess; |
| 248 | } |
| 249 | |
| 250 | // copy from MD to phys addr |
| 251 | |
| 252 | static IOReturn |
| 253 | IOMemoryDescriptorReadToPhysical(IOMemoryDescriptor * md, |
| 254 | IOByteCount offset, addr64_t bytes, IOByteCount length) |
| 255 | { |
| 256 | addr64_t dstAddr = bytes; |
| 257 | IOByteCount remaining; |
| 258 | |
| 259 | remaining = length = min(length, md->getLength() - offset); |
| 260 | while (remaining) { // (process another target segment?) |
| 261 | addr64_t srcAddr64; |
| 262 | IOByteCount dstLen; |
| 263 | |
| 264 | srcAddr64 = md->getPhysicalSegment(offset, &dstLen, kIOMemoryMapperNone); |
| 265 | if (!srcAddr64) |
| 266 | break; |
| 267 | |
| 268 | // Clip segment length to remaining |
| 269 | if (dstLen > remaining) |
| 270 | dstLen = remaining; |
| 271 | |
| 272 | #if 1 |
| 273 | bcopy_phys(srcAddr64, dstAddr, dstLen); |
| 274 | #else |
| 275 | copypv(srcAddr, dstAddr64, dstLen, |
| 276 | cppvPsnk | cppvFsnk | cppvNoRefSrc | cppvNoModSnk | cppvKmap); |
| 277 | #endif |
| 278 | dstAddr += dstLen; |
| 279 | offset += dstLen; |
| 280 | remaining -= dstLen; |
| 281 | } |
| 282 | |
| 283 | assert(!remaining); |
| 284 | |
| 285 | return remaining ? kIOReturnUnderrun : kIOReturnSuccess; |
| 286 | } |
| 287 | |
| 288 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 289 | |
| 290 | void |
| 291 | hibernate_set_page_state(hibernate_page_list_t * page_list, hibernate_page_list_t * page_list_wired, |
| 292 | vm_offset_t ppnum, vm_offset_t count, uint32_t kind) |
| 293 | { |
| 294 | count += ppnum; |
| 295 | switch (kind) |
| 296 | { |
| 297 | case kIOHibernatePageStateUnwiredSave: |
| 298 | // unwired save |
| 299 | for (; ppnum < count; ppnum++) |
| 300 | { |
| 301 | hibernate_page_bitset(page_list, FALSE, ppnum); |
| 302 | hibernate_page_bitset(page_list_wired, TRUE, ppnum); |
| 303 | } |
| 304 | break; |
| 305 | case kIOHibernatePageStateWiredSave: |
| 306 | // wired save |
| 307 | for (; ppnum < count; ppnum++) |
| 308 | { |
| 309 | hibernate_page_bitset(page_list, FALSE, ppnum); |
| 310 | hibernate_page_bitset(page_list_wired, FALSE, ppnum); |
| 311 | } |
| 312 | break; |
| 313 | case kIOHibernatePageStateFree: |
| 314 | // free page |
| 315 | for (; ppnum < count; ppnum++) |
| 316 | { |
| 317 | hibernate_page_bitset(page_list, TRUE, ppnum); |
| 318 | hibernate_page_bitset(page_list_wired, TRUE, ppnum); |
| 319 | } |
| 320 | break; |
| 321 | default: |
| 322 | panic("hibernate_set_page_state"); |
| 323 | } |
| 324 | } |
| 325 | |
| 326 | static vm_offset_t |
| 327 | hibernate_page_list_iterate(hibernate_page_list_t * list, vm_offset_t * pPage) |
| 328 | { |
| 329 | uint32_t page = *pPage; |
| 330 | uint32_t count; |
| 331 | hibernate_bitmap_t * bitmap; |
| 332 | |
| 333 | while ((bitmap = hibernate_page_bitmap_pin(list, &page))) |
| 334 | { |
| 335 | count = hibernate_page_bitmap_count(bitmap, TRUE, page); |
| 336 | if (!count) |
| 337 | break; |
| 338 | page += count; |
| 339 | if (page <= bitmap->last_page) |
| 340 | break; |
| 341 | } |
| 342 | |
| 343 | *pPage = page; |
| 344 | if (bitmap) |
| 345 | count = hibernate_page_bitmap_count(bitmap, FALSE, page); |
| 346 | else |
| 347 | count = 0; |
| 348 | |
| 349 | return (count); |
| 350 | } |
| 351 | |
| 352 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 353 | |
| 354 | static IOReturn |
| 355 | IOHibernatePollerProbe(IOPolledFileIOVars * vars, IOService * target) |
| 356 | { |
| 357 | IOReturn err = kIOReturnError; |
| 358 | int32_t idx; |
| 359 | IOPolledInterface * poller; |
| 360 | |
| 361 | for (idx = vars->pollers->getCount() - 1; idx >= 0; idx--) |
| 362 | { |
| 363 | poller = (IOPolledInterface *) vars->pollers->getObject(idx); |
| 364 | err = poller->probe(target); |
| 365 | if (err) |
| 366 | { |
| 367 | HIBLOG("IOPolledInterface::probe[%d] 0x%x\n", idx, err); |
| 368 | break; |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | return (err); |
| 373 | } |
| 374 | |
| 375 | static IOReturn |
| 376 | IOHibernatePollerOpen(IOPolledFileIOVars * vars, uint32_t state, IOMemoryDescriptor * md) |
| 377 | { |
| 378 | IOReturn err = kIOReturnError; |
| 379 | int32_t idx; |
| 380 | IOPolledInterface * poller; |
| 381 | |
| 382 | for (idx = vars->pollers->getCount() - 1; idx >= 0; idx--) |
| 383 | { |
| 384 | poller = (IOPolledInterface *) vars->pollers->getObject(idx); |
| 385 | err = poller->open(state, md); |
| 386 | if (err) |
| 387 | { |
| 388 | HIBLOG("IOPolledInterface::open[%d] 0x%x\n", idx, err); |
| 389 | break; |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | return (err); |
| 394 | } |
| 395 | |
| 396 | static IOReturn |
| 397 | IOHibernatePollerClose(IOPolledFileIOVars * vars, uint32_t state) |
| 398 | { |
| 399 | IOReturn err = kIOReturnError; |
| 400 | int32_t idx; |
| 401 | IOPolledInterface * poller; |
| 402 | |
| 403 | for (idx = 0; |
| 404 | (poller = (IOPolledInterface *) vars->pollers->getObject(idx)); |
| 405 | idx++) |
| 406 | { |
| 407 | err = poller->close(state); |
| 408 | if (err) |
| 409 | HIBLOG("IOPolledInterface::close[%d] 0x%x\n", idx, err); |
| 410 | } |
| 411 | |
| 412 | return (err); |
| 413 | } |
| 414 | |
| 415 | static void |
| 416 | IOHibernatePollerIOComplete(void * target, |
| 417 | void * parameter, |
| 418 | IOReturn status, |
| 419 | UInt64 actualByteCount) |
| 420 | { |
| 421 | IOPolledFileIOVars * vars = (IOPolledFileIOVars *) parameter; |
| 422 | |
| 423 | vars->ioStatus = status; |
| 424 | } |
| 425 | |
| 426 | static IOReturn |
| 427 | IOHibernatePollerIO(IOPolledFileIOVars * vars, |
| 428 | uint32_t operation, uint32_t bufferOffset, |
| 429 | uint64_t deviceOffset, uint64_t length) |
| 430 | { |
| 431 | |
| 432 | IOReturn err = kIOReturnError; |
| 433 | IOPolledInterface * poller; |
| 434 | IOPolledCompletion completion; |
| 435 | |
| 436 | completion.target = 0; |
| 437 | completion.action = &IOHibernatePollerIOComplete; |
| 438 | completion.parameter = vars; |
| 439 | |
| 440 | vars->ioStatus = -1; |
| 441 | |
| 442 | poller = (IOPolledInterface *) vars->pollers->getObject(0); |
| 443 | err = poller->startIO(operation, bufferOffset, deviceOffset + vars->block0, length, completion); |
| 444 | if (err) |
| 445 | HIBLOG("IOPolledInterface::startIO[%d] 0x%x\n", 0, err); |
| 446 | |
| 447 | return (err); |
| 448 | } |
| 449 | |
| 450 | static IOReturn |
| 451 | IOHibernatePollerIODone(IOPolledFileIOVars * vars, bool abortable) |
| 452 | { |
| 453 | IOReturn err = kIOReturnSuccess; |
| 454 | int32_t idx = 0; |
| 455 | IOPolledInterface * poller; |
| 456 | |
| 457 | while (-1 == vars->ioStatus) |
| 458 | { |
| 459 | for (idx = 0; |
| 460 | (poller = (IOPolledInterface *) vars->pollers->getObject(idx)); |
| 461 | idx++) |
| 462 | { |
| 463 | IOReturn newErr; |
| 464 | newErr = poller->checkForWork(); |
| 465 | if ((newErr == kIOReturnAborted) && !abortable) |
| 466 | newErr = kIOReturnSuccess; |
| 467 | if (kIOReturnSuccess == err) |
| 468 | err = newErr; |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | if ((kIOReturnSuccess == err) && abortable && hibernate_should_abort()) |
| 473 | { |
| 474 | err = kIOReturnAborted; |
| 475 | HIBLOG("IOPolledInterface::checkForWork sw abort\n"); |
| 476 | } |
| 477 | |
| 478 | if (err) |
| 479 | { |
| 480 | HIBLOG("IOPolledInterface::checkForWork[%d] 0x%x\n", idx, err); |
| 481 | } |
| 482 | else |
| 483 | { |
| 484 | err = vars->ioStatus; |
| 485 | if (kIOReturnSuccess != err) |
| 486 | HIBLOG("IOPolledInterface::ioStatus 0x%x\n", err); |
| 487 | } |
| 488 | |
| 489 | return (err); |
| 490 | } |
| 491 | |
| 492 | IOReturn |
| 493 | IOPolledInterface::checkAllForWork(void) |
| 494 | { |
| 495 | IOReturn err = kIOReturnNotReady; |
| 496 | int32_t idx; |
| 497 | IOPolledInterface * poller; |
| 498 | |
| 499 | IOHibernateVars * vars = &gIOHibernateVars; |
| 500 | |
| 501 | if (!vars->fileVars || !vars->fileVars->pollers) |
| 502 | return (err); |
| 503 | |
| 504 | for (idx = 0; |
| 505 | (poller = (IOPolledInterface *) vars->fileVars->pollers->getObject(idx)); |
| 506 | idx++) |
| 507 | { |
| 508 | err = poller->checkForWork(); |
| 509 | if (err) |
| 510 | HIBLOG("IOPolledInterface::checkAllForWork[%d] 0x%x\n", idx, err); |
| 511 | } |
| 512 | |
| 513 | return (err); |
| 514 | } |
| 515 | |
| 516 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 517 | |
| 518 | struct _OpenFileContext |
| 519 | { |
| 520 | OSData * extents; |
| 521 | uint64_t size; |
| 522 | }; |
| 523 | |
| 524 | static void |
| 525 | file_extent_callback(void * ref, uint64_t start, uint64_t length) |
| 526 | { |
| 527 | _OpenFileContext * ctx = (_OpenFileContext *) ref; |
| 528 | IOPolledFileExtent extent; |
| 529 | |
| 530 | extent.start = start; |
| 531 | extent.length = length; |
| 532 | |
| 533 | ctx->extents->appendBytes(&extent, sizeof(extent)); |
| 534 | ctx->size += length; |
| 535 | } |
| 536 | |
| 537 | IOReturn |
| 538 | IOPolledFileOpen( const char * filename, IOBufferMemoryDescriptor * ioBuffer, |
| 539 | IOPolledFileIOVars ** fileVars, OSData ** fileExtents, |
| 540 | OSData ** imagePath) |
| 541 | { |
| 542 | IOReturn err = kIOReturnError; |
| 543 | IOPolledFileIOVars * vars; |
| 544 | _OpenFileContext ctx; |
| 545 | OSData * extentsData; |
| 546 | OSNumber * num; |
| 547 | IORegistryEntry * part = 0; |
| 548 | OSDictionary * matching; |
| 549 | OSIterator * iter; |
| 550 | dev_t hibernate_image_dev; |
| 551 | uint64_t maxiobytes; |
| 552 | |
| 553 | vars = &gFileVars; |
| 554 | do |
| 555 | { |
| 556 | HIBLOG("sizeof(IOHibernateImageHeader) == %ld\n", sizeof(IOHibernateImageHeader)); |
| 557 | if (sizeof(IOHibernateImageHeader) != 512) |
| 558 | continue; |
| 559 | |
| 560 | vars->io = false; |
| 561 | vars->buffer = (uint8_t *) ioBuffer->getBytesNoCopy(); |
| 562 | vars->bufferHalf = 0; |
| 563 | vars->bufferOffset = 0; |
| 564 | vars->bufferSize = ioBuffer->getLength() >> 1; |
| 565 | |
| 566 | extentsData = OSData::withCapacity(32); |
| 567 | |
| 568 | ctx.extents = extentsData; |
| 569 | ctx.size = 0; |
| 570 | vars->fileRef = kern_open_file_for_direct_io(filename, |
| 571 | &file_extent_callback, &ctx, |
| 572 | &hibernate_image_dev, |
| 573 | &vars->block0, |
| 574 | &maxiobytes, |
| 575 | &vars->solid_state); |
| 576 | if (!vars->fileRef) |
| 577 | { |
| 578 | err = kIOReturnNoSpace; |
| 579 | break; |
| 580 | } |
| 581 | gIOHibernateFileRef = vars->fileRef; |
| 582 | |
| 583 | if (kIOHibernateModeSSDInvert & gIOHibernateMode) |
| 584 | vars->solid_state = vars->solid_state ? false : true; |
| 585 | |
| 586 | HIBLOG("Opened file %s, size %qd, partition base 0x%qx, maxio %qx ssd %d\n", filename, ctx.size, |
| 587 | vars->block0, maxiobytes, vars->solid_state); |
| 588 | if (ctx.size < 1*1024*1024) // check against image size estimate! |
| 589 | { |
| 590 | err = kIOReturnNoSpace; |
| 591 | break; |
| 592 | } |
| 593 | |
| 594 | if (maxiobytes < vars->bufferSize) |
| 595 | vars->bufferSize = maxiobytes; |
| 596 | |
| 597 | vars->extentMap = (IOPolledFileExtent *) extentsData->getBytesNoCopy(); |
| 598 | |
| 599 | matching = IOService::serviceMatching("IOMedia"); |
| 600 | num = OSNumber::withNumber(major(hibernate_image_dev), 32); |
| 601 | matching->setObject(kIOBSDMajorKey, num); |
| 602 | num->release(); |
| 603 | num = OSNumber::withNumber(minor(hibernate_image_dev), 32); |
| 604 | matching->setObject(kIOBSDMinorKey, num); |
| 605 | num->release(); |
| 606 | iter = IOService::getMatchingServices(matching); |
| 607 | matching->release(); |
| 608 | if (iter) |
| 609 | { |
| 610 | part = (IORegistryEntry *) iter->getNextObject(); |
| 611 | part->retain(); |
| 612 | iter->release(); |
| 613 | } |
| 614 | if (!part) |
| 615 | break; |
| 616 | |
| 617 | int minor, major; |
| 618 | IORegistryEntry * next; |
| 619 | IORegistryEntry * child; |
| 620 | OSData * data; |
| 621 | |
| 622 | num = (OSNumber *) part->getProperty(kIOBSDMajorKey); |
| 623 | if (!num) |
| 624 | break; |
| 625 | major = num->unsigned32BitValue(); |
| 626 | num = (OSNumber *) part->getProperty(kIOBSDMinorKey); |
| 627 | if (!num) |
| 628 | break; |
| 629 | minor = num->unsigned32BitValue(); |
| 630 | |
| 631 | hibernate_image_dev = makedev(major, minor); |
| 632 | |
| 633 | vars->pollers = OSArray::withCapacity(4); |
| 634 | if (!vars->pollers) |
| 635 | break; |
| 636 | |
| 637 | vars->blockSize = 512; |
| 638 | next = part; |
| 639 | do |
| 640 | { |
| 641 | IOPolledInterface * poller; |
| 642 | OSObject * obj; |
| 643 | |
| 644 | obj = next->getProperty(kIOPolledInterfaceSupportKey); |
| 645 | if (kOSBooleanFalse == obj) |
| 646 | { |
| 647 | vars->pollers->flushCollection(); |
| 648 | break; |
| 649 | } |
| 650 | else if ((poller = OSDynamicCast(IOPolledInterface, obj))) |
| 651 | vars->pollers->setObject(poller); |
| 652 | if ((num = OSDynamicCast(OSNumber, next->getProperty(kIOMediaPreferredBlockSizeKey)))) |
| 653 | vars->blockSize = num->unsigned32BitValue(); |
| 654 | child = next; |
| 655 | } |
| 656 | while ((next = child->getParentEntry(gIOServicePlane)) |
| 657 | && child->isParent(next, gIOServicePlane, true)); |
| 658 | |
| 659 | HIBLOG("hibernate image major %d, minor %d, blocksize %ld, pollers %d\n", |
| 660 | major, minor, (long)vars->blockSize, vars->pollers->getCount()); |
| 661 | if (vars->pollers->getCount() < kIOHibernateMinPollersNeeded) |
| 662 | continue; |
| 663 | |
| 664 | err = IOHibernatePollerProbe(vars, (IOService *) part); |
| 665 | if (kIOReturnSuccess != err) |
| 666 | break; |
| 667 | |
| 668 | err = IOHibernatePollerOpen(vars, kIOPolledPreflightState, ioBuffer); |
| 669 | if (kIOReturnSuccess != err) |
| 670 | break; |
| 671 | |
| 672 | *fileVars = vars; |
| 673 | *fileExtents = extentsData; |
| 674 | |
| 675 | // make imagePath |
| 676 | |
| 677 | if ((extentsData->getLength() >= sizeof(IOPolledFileExtent))) |
| 678 | { |
| 679 | char str2[24]; |
| 680 | |
| 681 | #if defined(__i386__) || defined(__x86_64__) |
| 682 | if (!gIOCreateEFIDevicePathSymbol) |
| 683 | gIOCreateEFIDevicePathSymbol = OSSymbol::withCString("CreateEFIDevicePath"); |
| 684 | |
| 685 | snprintf(str2, sizeof(str2), "%qx", vars->extentMap[0].start); |
| 686 | |
| 687 | err = IOService::getPlatform()->callPlatformFunction( |
| 688 | gIOCreateEFIDevicePathSymbol, false, |
| 689 | (void *) part, (void *) str2, (void *) true, |
| 690 | (void *) &data); |
| 691 | #else |
| 692 | char str1[256]; |
| 693 | int len = sizeof(str1); |
| 694 | |
| 695 | if (!part->getPath(str1, &len, gIODTPlane)) |
| 696 | err = kIOReturnNotFound; |
| 697 | else |
| 698 | { |
| 699 | snprintf(str2, sizeof(str2), ",%qx", vars->extentMap[0].start); |
| 700 | // (strip the plane name) |
| 701 | char * tail = strchr(str1, ':'); |
| 702 | if (!tail) |
| 703 | tail = str1 - 1; |
| 704 | data = OSData::withBytes(tail + 1, strlen(tail + 1)); |
| 705 | data->appendBytes(str2, strlen(str2)); |
| 706 | } |
| 707 | #endif |
| 708 | if (kIOReturnSuccess == err) |
| 709 | *imagePath = data; |
| 710 | else |
| 711 | HIBLOG("error 0x%x getting path\n", err); |
| 712 | } |
| 713 | } |
| 714 | while (false); |
| 715 | |
| 716 | if (kIOReturnSuccess != err) |
| 717 | { |
| 718 | HIBLOG("error 0x%x opening hibernation file\n", err); |
| 719 | if (vars->fileRef) |
| 720 | { |
| 721 | kern_close_file_for_direct_io(vars->fileRef); |
| 722 | gIOHibernateFileRef = vars->fileRef = NULL; |
| 723 | } |
| 724 | } |
| 725 | |
| 726 | if (part) |
| 727 | part->release(); |
| 728 | |
| 729 | return (err); |
| 730 | } |
| 731 | |
| 732 | IOReturn |
| 733 | IOPolledFileClose( IOPolledFileIOVars * vars ) |
| 734 | { |
| 735 | if (vars->pollers) |
| 736 | { |
| 737 | IOHibernatePollerClose(vars, kIOPolledPostflightState); |
| 738 | vars->pollers->release(); |
| 739 | } |
| 740 | |
| 741 | bzero(vars, sizeof(IOPolledFileIOVars)); |
| 742 | |
| 743 | return (kIOReturnSuccess); |
| 744 | } |
| 745 | |
| 746 | static IOReturn |
| 747 | IOPolledFileSeek(IOPolledFileIOVars * vars, uint64_t position) |
| 748 | { |
| 749 | IOPolledFileExtent * extentMap; |
| 750 | |
| 751 | extentMap = vars->extentMap; |
| 752 | |
| 753 | vars->position = position; |
| 754 | |
| 755 | while (position >= extentMap->length) |
| 756 | { |
| 757 | position -= extentMap->length; |
| 758 | extentMap++; |
| 759 | } |
| 760 | |
| 761 | vars->currentExtent = extentMap; |
| 762 | vars->extentRemaining = extentMap->length - position; |
| 763 | vars->extentPosition = vars->position - position; |
| 764 | |
| 765 | if (vars->bufferSize <= vars->extentRemaining) |
| 766 | vars->bufferLimit = vars->bufferSize; |
| 767 | else |
| 768 | vars->bufferLimit = vars->extentRemaining; |
| 769 | |
| 770 | return (kIOReturnSuccess); |
| 771 | } |
| 772 | |
| 773 | static IOReturn |
| 774 | IOPolledFileWrite(IOPolledFileIOVars * vars, |
| 775 | const uint8_t * bytes, IOByteCount size, |
| 776 | hibernate_cryptvars_t * cryptvars) |
| 777 | { |
| 778 | IOReturn err = kIOReturnSuccess; |
| 779 | IOByteCount copy; |
| 780 | bool flush = false; |
| 781 | |
| 782 | do |
| 783 | { |
| 784 | if (!bytes && !size) |
| 785 | { |
| 786 | // seek to end of block & flush |
| 787 | size = vars->position & (vars->blockSize - 1); |
| 788 | if (size) |
| 789 | size = vars->blockSize - size; |
| 790 | flush = true; |
| 791 | // use some garbage for the fill |
| 792 | bytes = vars->buffer + vars->bufferOffset; |
| 793 | } |
| 794 | |
| 795 | copy = vars->bufferLimit - vars->bufferOffset; |
| 796 | if (copy > size) |
| 797 | copy = size; |
| 798 | else |
| 799 | flush = true; |
| 800 | |
| 801 | if (bytes) |
| 802 | { |
| 803 | bcopy(bytes, vars->buffer + vars->bufferHalf + vars->bufferOffset, copy); |
| 804 | bytes += copy; |
| 805 | } |
| 806 | else |
| 807 | bzero(vars->buffer + vars->bufferHalf + vars->bufferOffset, copy); |
| 808 | |
| 809 | size -= copy; |
| 810 | vars->bufferOffset += copy; |
| 811 | vars->position += copy; |
| 812 | |
| 813 | if (flush && vars->bufferOffset) |
| 814 | { |
| 815 | uint64_t offset = (vars->position - vars->bufferOffset |
| 816 | - vars->extentPosition + vars->currentExtent->start); |
| 817 | uint32_t length = (vars->bufferOffset); |
| 818 | |
| 819 | #if CRYPTO |
| 820 | if (cryptvars && vars->encryptStart |
| 821 | && (vars->position > vars->encryptStart) |
| 822 | && ((vars->position - length) < vars->encryptEnd)) |
| 823 | { |
| 824 | uint32_t encryptLen, encryptStart; |
| 825 | encryptLen = vars->position - vars->encryptStart; |
| 826 | if (encryptLen > length) |
| 827 | encryptLen = length; |
| 828 | encryptStart = length - encryptLen; |
| 829 | if (vars->position > vars->encryptEnd) |
| 830 | encryptLen -= (vars->position - vars->encryptEnd); |
| 831 | |
| 832 | // encrypt the buffer |
| 833 | aes_encrypt_cbc(vars->buffer + vars->bufferHalf + encryptStart, |
| 834 | &cryptvars->aes_iv[0], |
| 835 | encryptLen / AES_BLOCK_SIZE, |
| 836 | vars->buffer + vars->bufferHalf + encryptStart, |
| 837 | &cryptvars->ctx.encrypt); |
| 838 | // save initial vector for following encrypts |
| 839 | bcopy(vars->buffer + vars->bufferHalf + encryptStart + encryptLen - AES_BLOCK_SIZE, |
| 840 | &cryptvars->aes_iv[0], |
| 841 | AES_BLOCK_SIZE); |
| 842 | } |
| 843 | #endif /* CRYPTO */ |
| 844 | |
| 845 | if (vars->io) |
| 846 | { |
| 847 | err = IOHibernatePollerIODone(vars, true); |
| 848 | if (kIOReturnSuccess != err) |
| 849 | break; |
| 850 | } |
| 851 | |
| 852 | if (vars->position & (vars->blockSize - 1)) HIBLOG("misaligned file pos %qx\n", vars->position); |
| 853 | //if (length != vars->bufferSize) HIBLOG("short write of %qx ends@ %qx\n", length, offset + length); |
| 854 | |
| 855 | err = IOHibernatePollerIO(vars, kIOPolledWrite, vars->bufferHalf, offset, length); |
| 856 | if (kIOReturnSuccess != err) |
| 857 | break; |
| 858 | vars->io = true; |
| 859 | |
| 860 | vars->extentRemaining -= vars->bufferOffset; |
| 861 | if (!vars->extentRemaining) |
| 862 | { |
| 863 | vars->currentExtent++; |
| 864 | vars->extentRemaining = vars->currentExtent->length; |
| 865 | vars->extentPosition = vars->position; |
| 866 | if (!vars->extentRemaining) |
| 867 | { |
| 868 | err = kIOReturnOverrun; |
| 869 | break; |
| 870 | } |
| 871 | } |
| 872 | |
| 873 | vars->bufferHalf = vars->bufferHalf ? 0 : vars->bufferSize; |
| 874 | vars->bufferOffset = 0; |
| 875 | if (vars->bufferSize <= vars->extentRemaining) |
| 876 | vars->bufferLimit = vars->bufferSize; |
| 877 | else |
| 878 | vars->bufferLimit = vars->extentRemaining; |
| 879 | |
| 880 | flush = false; |
| 881 | } |
| 882 | } |
| 883 | while (size); |
| 884 | |
| 885 | return (err); |
| 886 | } |
| 887 | |
| 888 | static IOReturn |
| 889 | IOPolledFileRead(IOPolledFileIOVars * vars, |
| 890 | uint8_t * bytes, IOByteCount size, |
| 891 | hibernate_cryptvars_t * cryptvars) |
| 892 | { |
| 893 | IOReturn err = kIOReturnSuccess; |
| 894 | IOByteCount copy; |
| 895 | |
| 896 | // bytesWritten += size; |
| 897 | |
| 898 | do |
| 899 | { |
| 900 | copy = vars->bufferLimit - vars->bufferOffset; |
| 901 | if (copy > size) |
| 902 | copy = size; |
| 903 | |
| 904 | if (bytes) |
| 905 | { |
| 906 | bcopy(vars->buffer + vars->bufferHalf + vars->bufferOffset, bytes, copy); |
| 907 | bytes += copy; |
| 908 | } |
| 909 | size -= copy; |
| 910 | vars->bufferOffset += copy; |
| 911 | // vars->position += copy; |
| 912 | |
| 913 | if (vars->bufferOffset == vars->bufferLimit) |
| 914 | { |
| 915 | if (vars->io) |
| 916 | { |
| 917 | err = IOHibernatePollerIODone(vars, false); |
| 918 | if (kIOReturnSuccess != err) |
| 919 | break; |
| 920 | } |
| 921 | else |
| 922 | cryptvars = 0; |
| 923 | |
| 924 | if (vars->position & (vars->blockSize - 1)) HIBLOG("misaligned file pos %qx\n", vars->position); |
| 925 | |
| 926 | vars->position += vars->lastRead; |
| 927 | vars->extentRemaining -= vars->lastRead; |
| 928 | vars->bufferLimit = vars->lastRead; |
| 929 | |
| 930 | if (!vars->extentRemaining) |
| 931 | { |
| 932 | vars->currentExtent++; |
| 933 | vars->extentRemaining = vars->currentExtent->length; |
| 934 | vars->extentPosition = vars->position; |
| 935 | if (!vars->extentRemaining) |
| 936 | { |
| 937 | err = kIOReturnOverrun; |
| 938 | break; |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | uint64_t length; |
| 943 | uint64_t lastReadLength = vars->lastRead; |
| 944 | uint64_t offset = (vars->position |
| 945 | - vars->extentPosition + vars->currentExtent->start); |
| 946 | if (vars->extentRemaining <= vars->bufferSize) |
| 947 | length = vars->extentRemaining; |
| 948 | else |
| 949 | length = vars->bufferSize; |
| 950 | vars->lastRead = length; |
| 951 | |
| 952 | //if (length != vars->bufferSize) HIBLOG("short read of %qx ends@ %qx\n", length, offset + length); |
| 953 | |
| 954 | err = IOHibernatePollerIO(vars, kIOPolledRead, vars->bufferHalf, offset, length); |
| 955 | if (kIOReturnSuccess != err) |
| 956 | break; |
| 957 | vars->io = true; |
| 958 | |
| 959 | vars->bufferHalf = vars->bufferHalf ? 0 : vars->bufferSize; |
| 960 | vars->bufferOffset = 0; |
| 961 | |
| 962 | #if CRYPTO |
| 963 | if (cryptvars) |
| 964 | { |
| 965 | uint8_t thisVector[AES_BLOCK_SIZE]; |
| 966 | // save initial vector for following decrypts |
| 967 | bcopy(&cryptvars->aes_iv[0], &thisVector[0], AES_BLOCK_SIZE); |
| 968 | bcopy(vars->buffer + vars->bufferHalf + lastReadLength - AES_BLOCK_SIZE, |
| 969 | &cryptvars->aes_iv[0], AES_BLOCK_SIZE); |
| 970 | // decrypt the buffer |
| 971 | aes_decrypt_cbc(vars->buffer + vars->bufferHalf, |
| 972 | &thisVector[0], |
| 973 | lastReadLength / AES_BLOCK_SIZE, |
| 974 | vars->buffer + vars->bufferHalf, |
| 975 | &cryptvars->ctx.decrypt); |
| 976 | } |
| 977 | #endif /* CRYPTO */ |
| 978 | } |
| 979 | } |
| 980 | while (size); |
| 981 | |
| 982 | return (err); |
| 983 | } |
| 984 | |
| 985 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 986 | |
| 987 | IOReturn |
| 988 | IOHibernateSystemSleep(void) |
| 989 | { |
| 990 | IOReturn err; |
| 991 | OSData * data; |
| 992 | OSObject * obj; |
| 993 | OSString * str; |
| 994 | bool dsSSD; |
| 995 | |
| 996 | IOHibernateVars * vars = &gIOHibernateVars; |
| 997 | |
| 998 | if (vars->fileVars && vars->fileVars->fileRef) |
| 999 | // already on the way down |
| 1000 | return (kIOReturnSuccess); |
| 1001 | |
| 1002 | gIOHibernateState = kIOHibernateStateInactive; |
| 1003 | |
| 1004 | gIOHibernateDebugFlags = 0; |
| 1005 | if (kIOLogHibernate & gIOKitDebug) |
| 1006 | gIOHibernateDebugFlags |= kIOHibernateDebugRestoreLogs; |
| 1007 | |
| 1008 | if (IOService::getPMRootDomain()->getHibernateSettings( |
| 1009 | &gIOHibernateMode, &gIOHibernateFreeRatio, &gIOHibernateFreeTime)) |
| 1010 | if (kIOHibernateModeSleep & gIOHibernateMode) |
| 1011 | // default to discard clean for safe sleep |
| 1012 | gIOHibernateMode ^= (kIOHibernateModeDiscardCleanInactive |
| 1013 | | kIOHibernateModeDiscardCleanActive); |
| 1014 | |
| 1015 | if ((obj = IOService::getPMRootDomain()->copyProperty(kIOHibernateFileKey))) |
| 1016 | { |
| 1017 | if ((str = OSDynamicCast(OSString, obj))) |
| 1018 | strlcpy(gIOHibernateFilename, str->getCStringNoCopy(), |
| 1019 | sizeof(gIOHibernateFilename)); |
| 1020 | obj->release(); |
| 1021 | } |
| 1022 | |
| 1023 | if (!gIOHibernateMode || !gIOHibernateFilename[0]) |
| 1024 | return (kIOReturnUnsupported); |
| 1025 | |
| 1026 | HIBLOG("hibernate image path: %s\n", gIOHibernateFilename); |
| 1027 | |
| 1028 | |
| 1029 | do |
| 1030 | { |
| 1031 | vars->srcBuffer = IOBufferMemoryDescriptor::withOptions(kIODirectionOutIn, |
| 1032 | 4 * page_size, page_size); |
| 1033 | vars->ioBuffer = IOBufferMemoryDescriptor::withOptions(kIODirectionOutIn, |
| 1034 | 2 * kDefaultIOSize, page_size); |
| 1035 | |
| 1036 | if (!vars->srcBuffer || !vars->ioBuffer) |
| 1037 | { |
| 1038 | err = kIOReturnNoMemory; |
| 1039 | break; |
| 1040 | } |
| 1041 | |
| 1042 | err = IOPolledFileOpen(gIOHibernateFilename, vars->ioBuffer, |
| 1043 | &vars->fileVars, &vars->fileExtents, &data); |
| 1044 | if (KERN_SUCCESS != err) |
| 1045 | { |
| 1046 | HIBLOG("IOPolledFileOpen(%x)\n", err); |
| 1047 | break; |
| 1048 | } |
| 1049 | if (vars->fileVars->fileRef) |
| 1050 | { |
| 1051 | // invalidate the image file |
| 1052 | gIOHibernateCurrentHeader->signature = kIOHibernateHeaderInvalidSignature; |
| 1053 | int err = kern_write_file(vars->fileVars->fileRef, 0, |
| 1054 | (caddr_t) gIOHibernateCurrentHeader, sizeof(IOHibernateImageHeader)); |
| 1055 | if (KERN_SUCCESS != err) |
| 1056 | HIBLOG("kern_write_file(%d)\n", err); |
| 1057 | } |
| 1058 | |
| 1059 | bzero(gIOHibernateCurrentHeader, sizeof(IOHibernateImageHeader)); |
| 1060 | gIOHibernateCurrentHeader->debugFlags = gIOHibernateDebugFlags; |
| 1061 | |
| 1062 | dsSSD = (vars->fileVars->solid_state |
| 1063 | && (kOSBooleanTrue == IOService::getPMRootDomain()->getProperty(kIOPMDeepSleepEnabledKey))); |
| 1064 | |
| 1065 | if (dsSSD) |
| 1066 | { |
| 1067 | gIOHibernateCurrentHeader->options |= |
| 1068 | kIOHibernateOptionSSD |
| 1069 | | kIOHibernateOptionColor; |
| 1070 | } |
| 1071 | else |
| 1072 | { |
| 1073 | gIOHibernateCurrentHeader->options |= kIOHibernateOptionProgress; |
| 1074 | } |
| 1075 | |
| 1076 | boolean_t encryptedswap; |
| 1077 | AbsoluteTime startTime, endTime; |
| 1078 | uint64_t nsec; |
| 1079 | |
| 1080 | clock_get_uptime(&startTime); |
| 1081 | err = hibernate_setup(gIOHibernateCurrentHeader, |
| 1082 | gIOHibernateFreeRatio, gIOHibernateFreeTime, |
| 1083 | dsSSD, |
| 1084 | &vars->page_list, &vars->page_list_wired, &encryptedswap); |
| 1085 | clock_get_uptime(&endTime); |
| 1086 | SUB_ABSOLUTETIME(&endTime, &startTime); |
| 1087 | absolutetime_to_nanoseconds(endTime, &nsec); |
| 1088 | HIBLOG("hibernate_setup(%d) took %qd ms\n", err, nsec / 1000000ULL); |
| 1089 | |
| 1090 | if (KERN_SUCCESS != err) |
| 1091 | break; |
| 1092 | |
| 1093 | if (encryptedswap) |
| 1094 | gIOHibernateMode ^= kIOHibernateModeEncrypt; |
| 1095 | |
| 1096 | if (kIOHibernateOptionProgress & gIOHibernateCurrentHeader->options) |
| 1097 | { |
| 1098 | vars->videoAllocSize = kVideoMapSize; |
| 1099 | if (KERN_SUCCESS != kmem_alloc_pageable(kernel_map, &vars->videoMapping, vars->videoAllocSize)) |
| 1100 | vars->videoMapping = 0; |
| 1101 | } |
| 1102 | |
| 1103 | // generate crypt keys |
| 1104 | for (uint32_t i = 0; i < sizeof(vars->wiredCryptKey); i++) |
| 1105 | vars->wiredCryptKey[i] = random(); |
| 1106 | for (uint32_t i = 0; i < sizeof(vars->cryptKey); i++) |
| 1107 | vars->cryptKey[i] = random(); |
| 1108 | |
| 1109 | // set nvram |
| 1110 | |
| 1111 | IORegistryEntry * regEntry; |
| 1112 | if (!gIOOptionsEntry) |
| 1113 | { |
| 1114 | regEntry = IORegistryEntry::fromPath("/options", gIODTPlane); |
| 1115 | gIOOptionsEntry = OSDynamicCast(IODTNVRAM, regEntry); |
| 1116 | if (regEntry && !gIOOptionsEntry) |
| 1117 | regEntry->release(); |
| 1118 | } |
| 1119 | if (!gIOChosenEntry) |
| 1120 | gIOChosenEntry = IORegistryEntry::fromPath("/chosen", gIODTPlane); |
| 1121 | |
| 1122 | if (gIOOptionsEntry) |
| 1123 | { |
| 1124 | const OSSymbol * sym; |
| 1125 | |
| 1126 | sym = OSSymbol::withCStringNoCopy(kIOHibernateBootImageKey); |
| 1127 | if (sym) |
| 1128 | { |
| 1129 | gIOOptionsEntry->setProperty(sym, data); |
| 1130 | sym->release(); |
| 1131 | } |
| 1132 | data->release(); |
| 1133 | |
| 1134 | #if defined(__ppc__) |
| 1135 | size_t len; |
| 1136 | char valueString[16]; |
| 1137 | |
| 1138 | vars->saveBootDevice = gIOOptionsEntry->copyProperty(kIOSelectedBootDeviceKey); |
| 1139 | if (gIOChosenEntry) |
| 1140 | { |
| 1141 | OSData * bootDevice = OSDynamicCast(OSData, gIOChosenEntry->getProperty(kIOBootPathKey)); |
| 1142 | if (bootDevice) |
| 1143 | { |
| 1144 | sym = OSSymbol::withCStringNoCopy(kIOSelectedBootDeviceKey); |
| 1145 | OSString * str2 = OSString::withCStringNoCopy((const char *) bootDevice->getBytesNoCopy()); |
| 1146 | if (sym && str2) |
| 1147 | gIOOptionsEntry->setProperty(sym, str2); |
| 1148 | if (sym) |
| 1149 | sym->release(); |
| 1150 | if (str2) |
| 1151 | str2->release(); |
| 1152 | } |
| 1153 | data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(kIOHibernateMemorySignatureKey)); |
| 1154 | if (data) |
| 1155 | { |
| 1156 | vars->haveFastBoot = true; |
| 1157 | |
| 1158 | len = snprintf(valueString, sizeof(valueString), "0x%lx", *((UInt32 *)data->getBytesNoCopy())); |
| 1159 | data = OSData::withBytes(valueString, len + 1); |
| 1160 | sym = OSSymbol::withCStringNoCopy(kIOHibernateMemorySignatureEnvKey); |
| 1161 | if (sym && data) |
| 1162 | gIOOptionsEntry->setProperty(sym, data); |
| 1163 | if (sym) |
| 1164 | sym->release(); |
| 1165 | if (data) |
| 1166 | data->release(); |
| 1167 | } |
| 1168 | data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(kIOHibernateMachineSignatureKey)); |
| 1169 | if (data) |
| 1170 | gIOHibernateCurrentHeader->machineSignature = *((UInt32 *)data->getBytesNoCopy()); |
| 1171 | } |
| 1172 | #endif /* __ppc__ */ |
| 1173 | #if defined(__i386__) || defined(__x86_64__) |
| 1174 | struct AppleRTCHibernateVars |
| 1175 | { |
| 1176 | uint8_t signature[4]; |
| 1177 | uint32_t revision; |
| 1178 | uint8_t booterSignature[20]; |
| 1179 | uint8_t wiredCryptKey[16]; |
| 1180 | }; |
| 1181 | AppleRTCHibernateVars rtcVars; |
| 1182 | |
| 1183 | rtcVars.signature[0] = 'A'; |
| 1184 | rtcVars.signature[1] = 'A'; |
| 1185 | rtcVars.signature[2] = 'P'; |
| 1186 | rtcVars.signature[3] = 'L'; |
| 1187 | rtcVars.revision = 1; |
| 1188 | bcopy(&vars->wiredCryptKey[0], &rtcVars.wiredCryptKey[0], sizeof(rtcVars.wiredCryptKey)); |
| 1189 | if (gIOHibernateBootSignature[0]) |
| 1190 | { |
| 1191 | char c; |
| 1192 | uint8_t value = 0; |
| 1193 | for (uint32_t i = 0; |
| 1194 | (c = gIOHibernateBootSignature[i]) && (i < (sizeof(rtcVars.booterSignature) << 1)); |
| 1195 | i++) |
| 1196 | { |
| 1197 | if (c >= 'a') |
| 1198 | c -= 'a' - 10; |
| 1199 | else if (c >= 'A') |
| 1200 | c -= 'A' - 10; |
| 1201 | else if (c >= '0') |
| 1202 | c -= '0'; |
| 1203 | else |
| 1204 | continue; |
| 1205 | value = (value << 4) | c; |
| 1206 | if (i & 1) |
| 1207 | rtcVars.booterSignature[i >> 1] = value; |
| 1208 | } |
| 1209 | } |
| 1210 | data = OSData::withBytes(&rtcVars, sizeof(rtcVars)); |
| 1211 | if (data) |
| 1212 | { |
| 1213 | IOService::getPMRootDomain()->setProperty(kIOHibernateRTCVariablesKey, data); |
| 1214 | |
| 1215 | if( gIOOptionsEntry ) |
| 1216 | { |
| 1217 | if( gIOHibernateMode & kIOHibernateModeSwitch ) |
| 1218 | { |
| 1219 | const OSSymbol *sym; |
| 1220 | sym = OSSymbol::withCStringNoCopy(kIOHibernateBootSwitchVarsKey); |
| 1221 | if( sym ) |
| 1222 | { |
| 1223 | gIOOptionsEntry->setProperty(sym, data); /* intentional insecure backup of rtc boot vars */ |
| 1224 | sym->release(); |
| 1225 | } |
| 1226 | } |
| 1227 | } |
| 1228 | |
| 1229 | data->release(); |
| 1230 | } |
| 1231 | if (gIOChosenEntry) |
| 1232 | { |
| 1233 | data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(kIOHibernateMachineSignatureKey)); |
| 1234 | if (data) |
| 1235 | gIOHibernateCurrentHeader->machineSignature = *((UInt32 *)data->getBytesNoCopy()); |
| 1236 | } |
| 1237 | #else /* !i386 && !x86_64 */ |
| 1238 | if (kIOHibernateModeEncrypt & gIOHibernateMode) |
| 1239 | { |
| 1240 | data = OSData::withBytes(&vars->wiredCryptKey[0], sizeof(vars->wiredCryptKey)); |
| 1241 | sym = OSSymbol::withCStringNoCopy(kIOHibernateBootImageKeyKey); |
| 1242 | if (sym && data) |
| 1243 | gIOOptionsEntry->setProperty(sym, data); |
| 1244 | if (sym) |
| 1245 | sym->release(); |
| 1246 | if (data) |
| 1247 | data->release(); |
| 1248 | if (false && gIOHibernateBootSignature[0]) |
| 1249 | { |
| 1250 | data = OSData::withCapacity(16); |
| 1251 | sym = OSSymbol::withCStringNoCopy(kIOHibernateBootSignatureKey); |
| 1252 | if (sym && data) |
| 1253 | { |
| 1254 | char c; |
| 1255 | uint8_t value = 0; |
| 1256 | for (uint32_t i = 0; (c = gIOHibernateBootSignature[i]); i++) |
| 1257 | { |
| 1258 | if (c >= 'a') |
| 1259 | c -= 'a' - 10; |
| 1260 | else if (c >= 'A') |
| 1261 | c -= 'A' - 10; |
| 1262 | else if (c >= '0') |
| 1263 | c -= '0'; |
| 1264 | else |
| 1265 | continue; |
| 1266 | value = (value << 4) | c; |
| 1267 | if (i & 1) |
| 1268 | data->appendBytes(&value, sizeof(value)); |
| 1269 | } |
| 1270 | gIOOptionsEntry->setProperty(sym, data); |
| 1271 | } |
| 1272 | if (sym) |
| 1273 | sym->release(); |
| 1274 | if (data) |
| 1275 | data->release(); |
| 1276 | } |
| 1277 | } |
| 1278 | if (!vars->haveFastBoot) |
| 1279 | { |
| 1280 | // set boot volume to zero |
| 1281 | IODTPlatformExpert * platform = OSDynamicCast(IODTPlatformExpert, IOService::getPlatform()); |
| 1282 | if (platform && (kIOReturnSuccess == platform->readXPRAM(kXPRamAudioVolume, |
| 1283 | &vars->saveBootAudioVolume, sizeof(vars->saveBootAudioVolume)))) |
| 1284 | { |
| 1285 | uint8_t newVolume; |
| 1286 | newVolume = vars->saveBootAudioVolume & 0xf8; |
| 1287 | platform->writeXPRAM(kXPRamAudioVolume, |
| 1288 | &newVolume, sizeof(newVolume)); |
| 1289 | } |
| 1290 | } |
| 1291 | #endif /* !i386 && !x86_64 */ |
| 1292 | } |
| 1293 | // -- |
| 1294 | |
| 1295 | gIOHibernateCurrentHeader->signature = kIOHibernateHeaderSignature; |
| 1296 | gIOHibernateState = kIOHibernateStateHibernating; |
| 1297 | } |
| 1298 | while (false); |
| 1299 | |
| 1300 | return (err); |
| 1301 | } |
| 1302 | |
| 1303 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 1304 | |
| 1305 | DECLARE_IOHIBERNATEPROGRESSALPHA |
| 1306 | |
| 1307 | static void |
| 1308 | ProgressInit(hibernate_graphics_t * display, uint8_t * screen, uint8_t * saveunder, uint32_t savelen) |
| 1309 | { |
| 1310 | uint32_t rowBytes, pixelShift; |
| 1311 | uint32_t x, y; |
| 1312 | int32_t blob; |
| 1313 | uint32_t alpha, in, color, result; |
| 1314 | uint8_t * out; |
| 1315 | uint32_t saveindex[kIOHibernateProgressCount] = { 0 }; |
| 1316 | |
| 1317 | rowBytes = display->rowBytes; |
| 1318 | pixelShift = display->depth >> 4; |
| 1319 | if (pixelShift < 1) return; |
| 1320 | |
| 1321 | screen += ((display->width |
| 1322 | - kIOHibernateProgressCount * (kIOHibernateProgressWidth + kIOHibernateProgressSpacing)) << (pixelShift - 1)) |
| 1323 | + (display->height - kIOHibernateProgressOriginY - kIOHibernateProgressHeight) * rowBytes; |
| 1324 | |
| 1325 | for (y = 0; y < kIOHibernateProgressHeight; y++) |
| 1326 | { |
| 1327 | out = screen + y * rowBytes; |
| 1328 | for (blob = 0; blob < kIOHibernateProgressCount; blob++) |
| 1329 | { |
| 1330 | color = blob ? kIOHibernateProgressDarkGray : kIOHibernateProgressMidGray; |
| 1331 | for (x = 0; x < kIOHibernateProgressWidth; x++) |
| 1332 | { |
| 1333 | alpha = gIOHibernateProgressAlpha[y][x]; |
| 1334 | result = color; |
| 1335 | if (alpha) |
| 1336 | { |
| 1337 | if (0xff != alpha) |
| 1338 | { |
| 1339 | if (1 == pixelShift) |
| 1340 | { |
| 1341 | in = *((uint16_t *)out) & 0x1f; // 16 |
| 1342 | in = (in << 3) | (in >> 2); |
| 1343 | } |
| 1344 | else |
| 1345 | in = *((uint32_t *)out) & 0xff; // 32 |
| 1346 | saveunder[blob * kIOHibernateProgressSaveUnderSize + saveindex[blob]++] = in; |
| 1347 | result = ((255 - alpha) * in + alpha * result + 0xff) >> 8; |
| 1348 | } |
| 1349 | if (1 == pixelShift) |
| 1350 | { |
| 1351 | result >>= 3; |
| 1352 | *((uint16_t *)out) = (result << 10) | (result << 5) | result; // 16 |
| 1353 | } |
| 1354 | else |
| 1355 | *((uint32_t *)out) = (result << 16) | (result << 8) | result; // 32 |
| 1356 | } |
| 1357 | out += (1 << pixelShift); |
| 1358 | } |
| 1359 | out += (kIOHibernateProgressSpacing << pixelShift); |
| 1360 | } |
| 1361 | } |
| 1362 | } |
| 1363 | |
| 1364 | |
| 1365 | static void |
| 1366 | ProgressUpdate(hibernate_graphics_t * display, uint8_t * screen, int32_t firstBlob, int32_t select) |
| 1367 | { |
| 1368 | uint32_t rowBytes, pixelShift; |
| 1369 | uint32_t x, y; |
| 1370 | int32_t blob, lastBlob; |
| 1371 | uint32_t alpha, in, color, result; |
| 1372 | uint8_t * out; |
| 1373 | uint32_t saveindex[kIOHibernateProgressCount] = { 0 }; |
| 1374 | |
| 1375 | pixelShift = display->depth >> 4; |
| 1376 | if (pixelShift < 1) |
| 1377 | return; |
| 1378 | |
| 1379 | rowBytes = display->rowBytes; |
| 1380 | |
| 1381 | screen += ((display->width |
| 1382 | - kIOHibernateProgressCount * (kIOHibernateProgressWidth + kIOHibernateProgressSpacing)) << (pixelShift - 1)) |
| 1383 | + (display->height - kIOHibernateProgressOriginY - kIOHibernateProgressHeight) * rowBytes; |
| 1384 | |
| 1385 | lastBlob = (select < kIOHibernateProgressCount) ? select : (kIOHibernateProgressCount - 1); |
| 1386 | |
| 1387 | screen += (firstBlob * (kIOHibernateProgressWidth + kIOHibernateProgressSpacing)) << pixelShift; |
| 1388 | |
| 1389 | for (y = 0; y < kIOHibernateProgressHeight; y++) |
| 1390 | { |
| 1391 | out = screen + y * rowBytes; |
| 1392 | for (blob = firstBlob; blob <= lastBlob; blob++) |
| 1393 | { |
| 1394 | color = (blob < select) ? kIOHibernateProgressLightGray : kIOHibernateProgressMidGray; |
| 1395 | for (x = 0; x < kIOHibernateProgressWidth; x++) |
| 1396 | { |
| 1397 | alpha = gIOHibernateProgressAlpha[y][x]; |
| 1398 | result = color; |
| 1399 | if (alpha) |
| 1400 | { |
| 1401 | if (0xff != alpha) |
| 1402 | { |
| 1403 | in = display->progressSaveUnder[blob][saveindex[blob]++]; |
| 1404 | result = ((255 - alpha) * in + alpha * result + 0xff) / 255; |
| 1405 | } |
| 1406 | if (1 == pixelShift) |
| 1407 | { |
| 1408 | result >>= 3; |
| 1409 | *((uint16_t *)out) = (result << 10) | (result << 5) | result; // 16 |
| 1410 | } |
| 1411 | else |
| 1412 | *((uint32_t *)out) = (result << 16) | (result << 8) | result; // 32 |
| 1413 | } |
| 1414 | out += (1 << pixelShift); |
| 1415 | } |
| 1416 | out += (kIOHibernateProgressSpacing << pixelShift); |
| 1417 | } |
| 1418 | } |
| 1419 | } |
| 1420 | |
| 1421 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 1422 | |
| 1423 | IOReturn |
| 1424 | IOHibernateSystemHasSlept(void) |
| 1425 | { |
| 1426 | IOHibernateVars * vars = &gIOHibernateVars; |
| 1427 | OSObject * obj; |
| 1428 | OSData * data; |
| 1429 | |
| 1430 | obj = IOService::getPMRootDomain()->copyProperty(kIOHibernatePreviewBufferKey); |
| 1431 | vars->previewBuffer = OSDynamicCast(IOMemoryDescriptor, obj); |
| 1432 | if (obj && !vars->previewBuffer) |
| 1433 | obj->release(); |
| 1434 | |
| 1435 | vars->consoleMapping = NULL; |
| 1436 | if (vars->previewBuffer && (kIOReturnSuccess != vars->previewBuffer->prepare())) |
| 1437 | { |
| 1438 | vars->previewBuffer->release(); |
| 1439 | vars->previewBuffer = 0; |
| 1440 | } |
| 1441 | |
| 1442 | if ((kIOHibernateOptionProgress & gIOHibernateCurrentHeader->options) |
| 1443 | && vars->previewBuffer |
| 1444 | && (data = OSDynamicCast(OSData, |
| 1445 | IOService::getPMRootDomain()->getProperty(kIOHibernatePreviewActiveKey)))) |
| 1446 | { |
| 1447 | UInt32 flags = *((UInt32 *)data->getBytesNoCopy()); |
| 1448 | HIBPRINT("kIOHibernatePreviewActiveKey %08lx\n", (long)flags); |
| 1449 | |
| 1450 | IOService::getPMRootDomain()->removeProperty(kIOHibernatePreviewActiveKey); |
| 1451 | |
| 1452 | if (kIOHibernatePreviewUpdates & flags) |
| 1453 | { |
| 1454 | PE_Video consoleInfo; |
| 1455 | hibernate_graphics_t * graphicsInfo = gIOHibernateGraphicsInfo; |
| 1456 | |
| 1457 | IOService::getPlatform()->getConsoleInfo(&consoleInfo); |
| 1458 | |
| 1459 | graphicsInfo->width = consoleInfo.v_width; |
| 1460 | graphicsInfo->height = consoleInfo.v_height; |
| 1461 | graphicsInfo->rowBytes = consoleInfo.v_rowBytes; |
| 1462 | graphicsInfo->depth = consoleInfo.v_depth; |
| 1463 | vars->consoleMapping = (uint8_t *) consoleInfo.v_baseAddr; |
| 1464 | |
| 1465 | HIBPRINT("video %p %d %d %d\n", |
| 1466 | vars->consoleMapping, graphicsInfo->depth, |
| 1467 | graphicsInfo->width, graphicsInfo->height); |
| 1468 | if (vars->consoleMapping) |
| 1469 | ProgressInit(graphicsInfo, vars->consoleMapping, |
| 1470 | &graphicsInfo->progressSaveUnder[0][0], sizeof(graphicsInfo->progressSaveUnder)); |
| 1471 | } |
| 1472 | } |
| 1473 | |
| 1474 | if (gIOOptionsEntry) |
| 1475 | gIOOptionsEntry->sync(); |
| 1476 | |
| 1477 | return (kIOReturnSuccess); |
| 1478 | } |
| 1479 | |
| 1480 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 1481 | |
| 1482 | IOReturn |
| 1483 | IOHibernateSystemWake(void) |
| 1484 | { |
| 1485 | IOHibernateVars * vars = &gIOHibernateVars; |
| 1486 | |
| 1487 | hibernate_teardown(vars->page_list, vars->page_list_wired); |
| 1488 | |
| 1489 | if (vars->videoMapping) |
| 1490 | { |
| 1491 | if (vars->videoMapSize) |
| 1492 | // remove mappings |
| 1493 | IOUnmapPages(kernel_map, vars->videoMapping, vars->videoMapSize); |
| 1494 | if (vars->videoAllocSize) |
| 1495 | // dealloc range |
| 1496 | kmem_free(kernel_map, trunc_page(vars->videoMapping), vars->videoAllocSize); |
| 1497 | } |
| 1498 | |
| 1499 | if (vars->previewBuffer) |
| 1500 | { |
| 1501 | vars->previewBuffer->release(); |
| 1502 | vars->previewBuffer = 0; |
| 1503 | } |
| 1504 | |
| 1505 | if (kIOHibernateStateWakingFromHibernate == gIOHibernateState) |
| 1506 | { |
| 1507 | IOService::getPMRootDomain()->setProperty(kIOHibernateOptionsKey, |
| 1508 | gIOHibernateCurrentHeader->options, 32); |
| 1509 | } |
| 1510 | else |
| 1511 | { |
| 1512 | IOService::getPMRootDomain()->removeProperty(kIOHibernateOptionsKey); |
| 1513 | } |
| 1514 | |
| 1515 | if ((kIOHibernateStateWakingFromHibernate == gIOHibernateState) |
| 1516 | && (kIOHibernateGfxStatusUnknown != gIOHibernateGraphicsInfo->gfxStatus)) |
| 1517 | { |
| 1518 | IOService::getPMRootDomain()->setProperty(kIOHibernateGfxStatusKey, |
| 1519 | &gIOHibernateGraphicsInfo->gfxStatus, |
| 1520 | sizeof(gIOHibernateGraphicsInfo->gfxStatus)); |
| 1521 | } |
| 1522 | else |
| 1523 | { |
| 1524 | IOService::getPMRootDomain()->removeProperty(kIOHibernateGfxStatusKey); |
| 1525 | } |
| 1526 | |
| 1527 | |
| 1528 | if (vars->fileVars) |
| 1529 | { |
| 1530 | IOPolledFileClose(vars->fileVars); |
| 1531 | } |
| 1532 | |
| 1533 | // invalidate nvram properties - (gIOOptionsEntry != 0) => nvram was touched |
| 1534 | |
| 1535 | #ifdef __ppc__ |
| 1536 | OSData * data = OSData::withCapacity(4); |
| 1537 | if (gIOOptionsEntry && data) |
| 1538 | { |
| 1539 | const OSSymbol * sym = OSSymbol::withCStringNoCopy(kIOHibernateBootImageKey); |
| 1540 | if (sym) |
| 1541 | { |
| 1542 | gIOOptionsEntry->setProperty(sym, data); |
| 1543 | sym->release(); |
| 1544 | } |
| 1545 | sym = OSSymbol::withCStringNoCopy(kIOSelectedBootDeviceKey); |
| 1546 | if (sym) |
| 1547 | { |
| 1548 | if (vars->saveBootDevice) |
| 1549 | { |
| 1550 | gIOOptionsEntry->setProperty(sym, vars->saveBootDevice); |
| 1551 | vars->saveBootDevice->release(); |
| 1552 | } |
| 1553 | sym->release(); |
| 1554 | } |
| 1555 | sym = OSSymbol::withCStringNoCopy(kIOHibernateBootImageKeyKey); |
| 1556 | if (sym) |
| 1557 | { |
| 1558 | gIOOptionsEntry->setProperty(sym, data); |
| 1559 | sym->release(); |
| 1560 | } |
| 1561 | sym = OSSymbol::withCStringNoCopy(kIOHibernateMemorySignatureEnvKey); |
| 1562 | if (sym) |
| 1563 | { |
| 1564 | gIOOptionsEntry->removeProperty(sym); |
| 1565 | sym->release(); |
| 1566 | } |
| 1567 | } |
| 1568 | if (data) |
| 1569 | data->release(); |
| 1570 | |
| 1571 | if (gIOOptionsEntry) |
| 1572 | { |
| 1573 | if (!vars->haveFastBoot) |
| 1574 | { |
| 1575 | // reset boot audio volume |
| 1576 | IODTPlatformExpert * platform = OSDynamicCast(IODTPlatformExpert, IOService::getPlatform()); |
| 1577 | if (platform) |
| 1578 | platform->writeXPRAM(kXPRamAudioVolume, |
| 1579 | &vars->saveBootAudioVolume, sizeof(vars->saveBootAudioVolume)); |
| 1580 | } |
| 1581 | |
| 1582 | // sync now to hardware if the booter has not |
| 1583 | if (kIOHibernateStateInactive == gIOHibernateState) |
| 1584 | gIOOptionsEntry->sync(); |
| 1585 | else |
| 1586 | // just sync the variables in case a later panic syncs nvram (it won't sync variables) |
| 1587 | gIOOptionsEntry->syncOFVariables(); |
| 1588 | } |
| 1589 | #endif |
| 1590 | |
| 1591 | #if defined(__i386__) || defined(__x86_64__) |
| 1592 | IOService::getPMRootDomain()->removeProperty(kIOHibernateRTCVariablesKey); |
| 1593 | |
| 1594 | /* |
| 1595 | * Hibernate variable is written to NVRAM on platforms in which RtcRam |
| 1596 | * is not backed by coin cell. Remove Hibernate data from NVRAM. |
| 1597 | */ |
| 1598 | if (gIOOptionsEntry) { |
| 1599 | const OSSymbol * sym = OSSymbol::withCStringNoCopy(kIOHibernateRTCVariablesKey); |
| 1600 | |
| 1601 | if (sym) { |
| 1602 | if (gIOOptionsEntry->getProperty(sym)) { |
| 1603 | gIOOptionsEntry->removeProperty(sym); |
| 1604 | gIOOptionsEntry->sync(); |
| 1605 | } |
| 1606 | sym->release(); |
| 1607 | } |
| 1608 | } |
| 1609 | #endif |
| 1610 | |
| 1611 | if (vars->srcBuffer) |
| 1612 | vars->srcBuffer->release(); |
| 1613 | if (vars->ioBuffer) |
| 1614 | vars->ioBuffer->release(); |
| 1615 | if (vars->fileExtents) |
| 1616 | vars->fileExtents->release(); |
| 1617 | |
| 1618 | bzero(vars, sizeof(*vars)); |
| 1619 | |
| 1620 | // gIOHibernateState = kIOHibernateStateInactive; // leave it for post wake code to see |
| 1621 | |
| 1622 | return (kIOReturnSuccess); |
| 1623 | } |
| 1624 | |
| 1625 | IOReturn |
| 1626 | IOHibernateSystemPostWake(void) |
| 1627 | { |
| 1628 | if (gIOHibernateFileRef) |
| 1629 | { |
| 1630 | // invalidate the image file |
| 1631 | gIOHibernateCurrentHeader->signature = kIOHibernateHeaderInvalidSignature; |
| 1632 | int err = kern_write_file(gIOHibernateFileRef, 0, |
| 1633 | (caddr_t) gIOHibernateCurrentHeader, sizeof(IOHibernateImageHeader)); |
| 1634 | if (KERN_SUCCESS != err) |
| 1635 | HIBLOG("kern_write_file(%d)\n", err); |
| 1636 | |
| 1637 | kern_close_file_for_direct_io(gIOHibernateFileRef); |
| 1638 | gIOHibernateFileRef = 0; |
| 1639 | } |
| 1640 | return (kIOReturnSuccess); |
| 1641 | } |
| 1642 | |
| 1643 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 1644 | |
| 1645 | SYSCTL_STRING(_kern, OID_AUTO, hibernatefile, |
| 1646 | CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN, |
| 1647 | gIOHibernateFilename, sizeof(gIOHibernateFilename), ""); |
| 1648 | SYSCTL_STRING(_kern, OID_AUTO, bootsignature, |
| 1649 | CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN, |
| 1650 | gIOHibernateBootSignature, sizeof(gIOHibernateBootSignature), ""); |
| 1651 | SYSCTL_UINT(_kern, OID_AUTO, hibernatemode, |
| 1652 | CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN, |
| 1653 | &gIOHibernateMode, 0, ""); |
| 1654 | |
| 1655 | void |
| 1656 | IOHibernateSystemInit(IOPMrootDomain * rootDomain) |
| 1657 | { |
| 1658 | OSData * data = OSData::withBytesNoCopy(&gIOHibernateState, sizeof(gIOHibernateState)); |
| 1659 | if (data) |
| 1660 | { |
| 1661 | rootDomain->setProperty(kIOHibernateStateKey, data); |
| 1662 | data->release(); |
| 1663 | } |
| 1664 | |
| 1665 | if (PE_parse_boot_argn("hfile", gIOHibernateFilename, sizeof(gIOHibernateFilename))) |
| 1666 | gIOHibernateMode = kIOHibernateModeOn; |
| 1667 | else |
| 1668 | gIOHibernateFilename[0] = 0; |
| 1669 | |
| 1670 | sysctl_register_oid(&sysctl__kern_hibernatefile); |
| 1671 | sysctl_register_oid(&sysctl__kern_bootsignature); |
| 1672 | sysctl_register_oid(&sysctl__kern_hibernatemode); |
| 1673 | } |
| 1674 | |
| 1675 | |
| 1676 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 1677 | |
| 1678 | static void |
| 1679 | hibernate_setup_for_wake(void) |
| 1680 | { |
| 1681 | #if __ppc__ |
| 1682 | // go slow (state needed for wake) |
| 1683 | ml_set_processor_speed(1); |
| 1684 | #endif |
| 1685 | } |
| 1686 | |
| 1687 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 1688 | |
| 1689 | #define C_ASSERT(e) typedef char __C_ASSERT__[(e) ? 1 : -1] |
| 1690 | |
| 1691 | static bool |
| 1692 | no_encrypt_page(vm_offset_t ppnum) |
| 1693 | { |
| 1694 | if (pmap_is_noencrypt((ppnum_t)ppnum) == TRUE) |
| 1695 | { |
| 1696 | return true; |
| 1697 | } |
| 1698 | return false; |
| 1699 | } |
| 1700 | |
| 1701 | uint32_t wired_pages_encrypted = 0; |
| 1702 | uint32_t dirty_pages_encrypted = 0; |
| 1703 | uint32_t wired_pages_clear = 0; |
| 1704 | |
| 1705 | extern "C" uint32_t |
| 1706 | hibernate_write_image(void) |
| 1707 | { |
| 1708 | IOHibernateImageHeader * header = gIOHibernateCurrentHeader; |
| 1709 | IOHibernateVars * vars = &gIOHibernateVars; |
| 1710 | IOPolledFileExtent * fileExtents; |
| 1711 | |
| 1712 | C_ASSERT(sizeof(IOHibernateImageHeader) == 512); |
| 1713 | |
| 1714 | uint32_t pageCount, pagesDone; |
| 1715 | IOReturn err; |
| 1716 | vm_offset_t ppnum, page; |
| 1717 | IOItemCount count; |
| 1718 | uint8_t * src; |
| 1719 | uint8_t * data; |
| 1720 | IOByteCount pageCompressedSize; |
| 1721 | uint64_t compressedSize, uncompressedSize; |
| 1722 | uint64_t image1Size = 0; |
| 1723 | uint32_t bitmap_size; |
| 1724 | bool iterDone, pollerOpen, needEncrypt; |
| 1725 | uint32_t restore1Sum, sum, sum1, sum2; |
| 1726 | uint32_t tag; |
| 1727 | uint32_t pageType; |
| 1728 | uint32_t pageAndCount[2]; |
| 1729 | |
| 1730 | AbsoluteTime startTime, endTime; |
| 1731 | AbsoluteTime allTime, compTime, decoTime; |
| 1732 | uint64_t compBytes; |
| 1733 | uint64_t nsec; |
| 1734 | uint32_t lastProgressStamp = 0; |
| 1735 | uint32_t progressStamp; |
| 1736 | uint32_t blob, lastBlob = (uint32_t) -1L; |
| 1737 | |
| 1738 | hibernate_cryptvars_t _cryptvars; |
| 1739 | hibernate_cryptvars_t * cryptvars = 0; |
| 1740 | |
| 1741 | wired_pages_encrypted = 0; |
| 1742 | dirty_pages_encrypted = 0; |
| 1743 | wired_pages_clear = 0; |
| 1744 | |
| 1745 | if (!vars->fileVars || !vars->fileVars->pollers || !vars->fileExtents) |
| 1746 | return (false /* sleep */ ); |
| 1747 | |
| 1748 | if (kIOHibernateModeSleep & gIOHibernateMode) |
| 1749 | kdebug_enable = save_kdebug_enable; |
| 1750 | |
| 1751 | KERNEL_DEBUG_CONSTANT(IOKDBG_CODE(DBG_HIBERNATE, 1) | DBG_FUNC_START, 0, 0, 0, 0, 0); |
| 1752 | |
| 1753 | restore1Sum = sum1 = sum2 = 0; |
| 1754 | |
| 1755 | #if CRYPTO |
| 1756 | // encryption data. "iv" is the "initial vector". |
| 1757 | if (kIOHibernateModeEncrypt & gIOHibernateMode) |
| 1758 | { |
| 1759 | static const unsigned char first_iv[AES_BLOCK_SIZE] |
| 1760 | = { 0xa3, 0x63, 0x65, 0xa9, 0x0b, 0x71, 0x7b, 0x1c, |
| 1761 | 0xdf, 0x9e, 0x5f, 0x32, 0xd7, 0x61, 0x63, 0xda }; |
| 1762 | |
| 1763 | cryptvars = &gIOHibernateCryptWakeContext; |
| 1764 | bzero(cryptvars, sizeof(hibernate_cryptvars_t)); |
| 1765 | aes_encrypt_key(vars->cryptKey, |
| 1766 | kIOHibernateAESKeySize, |
| 1767 | &cryptvars->ctx.encrypt); |
| 1768 | aes_decrypt_key(vars->cryptKey, |
| 1769 | kIOHibernateAESKeySize, |
| 1770 | &cryptvars->ctx.decrypt); |
| 1771 | |
| 1772 | cryptvars = &_cryptvars; |
| 1773 | bzero(cryptvars, sizeof(hibernate_cryptvars_t)); |
| 1774 | aes_encrypt_key(vars->wiredCryptKey, |
| 1775 | kIOHibernateAESKeySize, |
| 1776 | &cryptvars->ctx.encrypt); |
| 1777 | |
| 1778 | bcopy(&first_iv[0], &cryptvars->aes_iv[0], AES_BLOCK_SIZE); |
| 1779 | bzero(&vars->wiredCryptKey[0], sizeof(vars->wiredCryptKey)); |
| 1780 | bzero(&vars->cryptKey[0], sizeof(vars->cryptKey)); |
| 1781 | bzero(gIOHibernateCryptWakeVars, sizeof(hibernate_cryptwakevars_t)); |
| 1782 | } |
| 1783 | #endif /* CRYPTO */ |
| 1784 | |
| 1785 | hibernate_setup_for_wake(); |
| 1786 | |
| 1787 | hibernate_page_list_setall(vars->page_list, |
| 1788 | vars->page_list_wired, |
| 1789 | &pageCount); |
| 1790 | |
| 1791 | HIBLOG("hibernate_page_list_setall found pageCount %d\n", pageCount); |
| 1792 | |
| 1793 | fileExtents = (IOPolledFileExtent *) vars->fileExtents->getBytesNoCopy(); |
| 1794 | |
| 1795 | #if 0 |
| 1796 | count = vars->fileExtents->getLength() / sizeof(IOPolledFileExtent); |
| 1797 | for (page = 0; page < count; page++) |
| 1798 | { |
| 1799 | HIBLOG("fileExtents[%d] %qx, %qx (%qx)\n", page, |
| 1800 | fileExtents[page].start, fileExtents[page].length, |
| 1801 | fileExtents[page].start + fileExtents[page].length); |
| 1802 | } |
| 1803 | #endif |
| 1804 | |
| 1805 | needEncrypt = (0 != (kIOHibernateModeEncrypt & gIOHibernateMode)); |
| 1806 | |
| 1807 | AbsoluteTime_to_scalar(&compTime) = 0; |
| 1808 | AbsoluteTime_to_scalar(&decoTime) = 0; |
| 1809 | |
| 1810 | clock_get_uptime(&allTime); |
| 1811 | IOService::getPMRootDomain()->pmStatsRecordEvent( |
| 1812 | kIOPMStatsHibernateImageWrite | kIOPMStatsEventStartFlag, allTime); |
| 1813 | |
| 1814 | do |
| 1815 | { |
| 1816 | compressedSize = 0; |
| 1817 | uncompressedSize = 0; |
| 1818 | |
| 1819 | IOPolledFileSeek(vars->fileVars, sizeof(IOHibernateImageHeader)); |
| 1820 | |
| 1821 | HIBLOG("IOHibernatePollerOpen, ml_get_interrupts_enabled %d\n", |
| 1822 | ml_get_interrupts_enabled()); |
| 1823 | err = IOHibernatePollerOpen(vars->fileVars, kIOPolledBeforeSleepState, vars->ioBuffer); |
| 1824 | HIBLOG("IOHibernatePollerOpen(%x)\n", err); |
| 1825 | pollerOpen = (kIOReturnSuccess == err); |
| 1826 | if (!pollerOpen) |
| 1827 | break; |
| 1828 | |
| 1829 | // copy file block extent list if larger than header |
| 1830 | |
| 1831 | count = vars->fileExtents->getLength(); |
| 1832 | if (count > sizeof(header->fileExtentMap)) |
| 1833 | { |
| 1834 | count -= sizeof(header->fileExtentMap); |
| 1835 | err = IOPolledFileWrite(vars->fileVars, |
| 1836 | ((uint8_t *) &fileExtents[0]) + sizeof(header->fileExtentMap), count, cryptvars); |
| 1837 | if (kIOReturnSuccess != err) |
| 1838 | break; |
| 1839 | } |
| 1840 | |
| 1841 | uintptr_t hibernateBase; |
| 1842 | uintptr_t hibernateEnd; |
| 1843 | |
| 1844 | #if defined(__i386__) || defined(__x86_64__) |
| 1845 | hibernateBase = sectINITPTB; |
| 1846 | #else |
| 1847 | hibernateBase = sectHIBB; |
| 1848 | #endif |
| 1849 | |
| 1850 | hibernateEnd = (sectHIBB + sectSizeHIB); |
| 1851 | // copy out restore1 code |
| 1852 | |
| 1853 | page = atop_32(hibernateBase); |
| 1854 | count = atop_32(round_page(hibernateEnd)) - page; |
| 1855 | header->restore1CodePage = page; |
| 1856 | header->restore1PageCount = count; |
| 1857 | header->restore1CodeOffset = ((uintptr_t) &hibernate_machine_entrypoint) - hibernateBase; |
| 1858 | header->restore1StackOffset = ((uintptr_t) &gIOHibernateRestoreStackEnd[0]) - 64 - hibernateBase; |
| 1859 | |
| 1860 | // sum __HIB sect, with zeros for the stack |
| 1861 | src = (uint8_t *) trunc_page(hibernateBase); |
| 1862 | for (page = 0; page < count; page++) |
| 1863 | { |
| 1864 | if ((src < &gIOHibernateRestoreStack[0]) || (src >= &gIOHibernateRestoreStackEnd[0])) |
| 1865 | restore1Sum += hibernate_sum_page(src, header->restore1CodePage + page); |
| 1866 | else |
| 1867 | restore1Sum += 0x00000000; |
| 1868 | src += page_size; |
| 1869 | } |
| 1870 | sum1 = restore1Sum; |
| 1871 | |
| 1872 | // write the __HIB sect, with zeros for the stack |
| 1873 | |
| 1874 | src = (uint8_t *) trunc_page(hibernateBase); |
| 1875 | count = ((uintptr_t) &gIOHibernateRestoreStack[0]) - trunc_page(hibernateBase); |
| 1876 | if (count) |
| 1877 | { |
| 1878 | err = IOPolledFileWrite(vars->fileVars, src, count, cryptvars); |
| 1879 | if (kIOReturnSuccess != err) |
| 1880 | break; |
| 1881 | } |
| 1882 | err = IOPolledFileWrite(vars->fileVars, |
| 1883 | (uint8_t *) 0, |
| 1884 | &gIOHibernateRestoreStackEnd[0] - &gIOHibernateRestoreStack[0], |
| 1885 | cryptvars); |
| 1886 | if (kIOReturnSuccess != err) |
| 1887 | break; |
| 1888 | src = &gIOHibernateRestoreStackEnd[0]; |
| 1889 | count = round_page(hibernateEnd) - ((uintptr_t) src); |
| 1890 | if (count) |
| 1891 | { |
| 1892 | err = IOPolledFileWrite(vars->fileVars, src, count, cryptvars); |
| 1893 | if (kIOReturnSuccess != err) |
| 1894 | break; |
| 1895 | } |
| 1896 | |
| 1897 | // write the preview buffer |
| 1898 | |
| 1899 | addr64_t phys64; |
| 1900 | IOByteCount segLen; |
| 1901 | |
| 1902 | if (vars->previewBuffer) |
| 1903 | { |
| 1904 | ppnum = 0; |
| 1905 | count = 0; |
| 1906 | do |
| 1907 | { |
| 1908 | phys64 = vars->previewBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone); |
| 1909 | pageAndCount[0] = atop_64(phys64); |
| 1910 | pageAndCount[1] = atop_32(segLen); |
| 1911 | err = IOPolledFileWrite(vars->fileVars, |
| 1912 | (const uint8_t *) &pageAndCount, sizeof(pageAndCount), |
| 1913 | cryptvars); |
| 1914 | if (kIOReturnSuccess != err) |
| 1915 | break; |
| 1916 | count += segLen; |
| 1917 | ppnum += sizeof(pageAndCount); |
| 1918 | } |
| 1919 | while (phys64); |
| 1920 | if (kIOReturnSuccess != err) |
| 1921 | break; |
| 1922 | |
| 1923 | src = (uint8_t *) vars->previewBuffer->getPhysicalSegment(0, NULL, _kIOMemorySourceSegment); |
| 1924 | count = vars->previewBuffer->getLength(); |
| 1925 | |
| 1926 | header->previewPageListSize = ppnum; |
| 1927 | header->previewSize = count + ppnum; |
| 1928 | |
| 1929 | for (page = 0; page < count; page += page_size) |
| 1930 | { |
| 1931 | phys64 = vars->previewBuffer->getPhysicalSegment(page, NULL, kIOMemoryMapperNone); |
| 1932 | sum1 += hibernate_sum_page(src + page, atop_64(phys64)); |
| 1933 | } |
| 1934 | err = IOPolledFileWrite(vars->fileVars, src, count, cryptvars); |
| 1935 | if (kIOReturnSuccess != err) |
| 1936 | break; |
| 1937 | } |
| 1938 | |
| 1939 | // mark areas for no save |
| 1940 | |
| 1941 | for (count = 0; |
| 1942 | (phys64 = vars->ioBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone)); |
| 1943 | count += segLen) |
| 1944 | { |
| 1945 | hibernate_set_page_state(vars->page_list, vars->page_list_wired, |
| 1946 | atop_64(phys64), atop_32(segLen), |
| 1947 | kIOHibernatePageStateFree); |
| 1948 | pageCount -= atop_32(segLen); |
| 1949 | } |
| 1950 | |
| 1951 | for (count = 0; |
| 1952 | (phys64 = vars->srcBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone)); |
| 1953 | count += segLen) |
| 1954 | { |
| 1955 | hibernate_set_page_state(vars->page_list, vars->page_list_wired, |
| 1956 | atop_64(phys64), atop_32(segLen), |
| 1957 | kIOHibernatePageStateFree); |
| 1958 | pageCount -= atop_32(segLen); |
| 1959 | } |
| 1960 | |
| 1961 | // copy out bitmap of pages available for trashing during restore |
| 1962 | |
| 1963 | bitmap_size = vars->page_list_wired->list_size; |
| 1964 | src = (uint8_t *) vars->page_list_wired; |
| 1965 | err = IOPolledFileWrite(vars->fileVars, src, bitmap_size, cryptvars); |
| 1966 | if (kIOReturnSuccess != err) |
| 1967 | break; |
| 1968 | |
| 1969 | // mark more areas for no save, but these are not available |
| 1970 | // for trashing during restore |
| 1971 | |
| 1972 | hibernate_page_list_set_volatile(vars->page_list, vars->page_list_wired, &pageCount); |
| 1973 | |
| 1974 | page = atop_32(hibernateBase); |
| 1975 | count = atop_32(round_page(hibernateEnd)) - page; |
| 1976 | hibernate_set_page_state(vars->page_list, vars->page_list_wired, |
| 1977 | page, count, |
| 1978 | kIOHibernatePageStateFree); |
| 1979 | pageCount -= count; |
| 1980 | |
| 1981 | if (vars->previewBuffer) for (count = 0; |
| 1982 | (phys64 = vars->previewBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone)); |
| 1983 | count += segLen) |
| 1984 | { |
| 1985 | hibernate_set_page_state(vars->page_list, vars->page_list_wired, |
| 1986 | atop_64(phys64), atop_32(segLen), |
| 1987 | kIOHibernatePageStateFree); |
| 1988 | pageCount -= atop_32(segLen); |
| 1989 | } |
| 1990 | |
| 1991 | src = (uint8_t *) vars->srcBuffer->getBytesNoCopy(); |
| 1992 | |
| 1993 | pagesDone = 0; |
| 1994 | lastBlob = 0; |
| 1995 | |
| 1996 | HIBLOG("writing %d pages\n", pageCount); |
| 1997 | |
| 1998 | enum |
| 1999 | // pageType |
| 2000 | { |
| 2001 | kWired = 0x02, |
| 2002 | kEncrypt = 0x01, |
| 2003 | kWiredEncrypt = kWired | kEncrypt, |
| 2004 | kWiredClear = kWired, |
| 2005 | kUnwiredEncrypt = kEncrypt |
| 2006 | }; |
| 2007 | |
| 2008 | for (pageType = kWiredEncrypt; pageType >= kUnwiredEncrypt; pageType--) |
| 2009 | { |
| 2010 | if (needEncrypt && (kEncrypt & pageType)) |
| 2011 | { |
| 2012 | vars->fileVars->encryptStart = (vars->fileVars->position & ~(AES_BLOCK_SIZE - 1)); |
| 2013 | vars->fileVars->encryptEnd = UINT64_MAX; |
| 2014 | HIBLOG("encryptStart %qx\n", vars->fileVars->encryptStart); |
| 2015 | |
| 2016 | if (kUnwiredEncrypt == pageType) |
| 2017 | { |
| 2018 | // start unwired image |
| 2019 | bcopy(&cryptvars->aes_iv[0], |
| 2020 | &gIOHibernateCryptWakeContext.aes_iv[0], |
| 2021 | sizeof(cryptvars->aes_iv)); |
| 2022 | cryptvars = &gIOHibernateCryptWakeContext; |
| 2023 | } |
| 2024 | } |
| 2025 | for (iterDone = false, ppnum = 0; !iterDone; ) |
| 2026 | { |
| 2027 | count = hibernate_page_list_iterate((kWired & pageType) |
| 2028 | ? vars->page_list_wired : vars->page_list, |
| 2029 | &ppnum); |
| 2030 | // kprintf("[%d](%x : %x)\n", pageType, ppnum, count); |
| 2031 | iterDone = !count; |
| 2032 | |
| 2033 | if (count && (kWired & pageType) && needEncrypt) |
| 2034 | { |
| 2035 | uint32_t checkIndex; |
| 2036 | for (checkIndex = 0; |
| 2037 | (checkIndex < count) |
| 2038 | && (((kEncrypt & pageType) == 0) == no_encrypt_page(ppnum + checkIndex)); |
| 2039 | checkIndex++) |
| 2040 | {} |
| 2041 | if (!checkIndex) |
| 2042 | { |
| 2043 | ppnum++; |
| 2044 | continue; |
| 2045 | } |
| 2046 | count = checkIndex; |
| 2047 | } |
| 2048 | |
| 2049 | switch (pageType) |
| 2050 | { |
| 2051 | case kWiredEncrypt: wired_pages_encrypted += count; break; |
| 2052 | case kWiredClear: wired_pages_clear += count; break; |
| 2053 | case kUnwiredEncrypt: dirty_pages_encrypted += count; break; |
| 2054 | } |
| 2055 | |
| 2056 | if (iterDone && (kWiredEncrypt == pageType)) {/* not yet end of wired list */} |
| 2057 | else |
| 2058 | { |
| 2059 | pageAndCount[0] = ppnum; |
| 2060 | pageAndCount[1] = count; |
| 2061 | err = IOPolledFileWrite(vars->fileVars, |
| 2062 | (const uint8_t *) &pageAndCount, sizeof(pageAndCount), |
| 2063 | cryptvars); |
| 2064 | if (kIOReturnSuccess != err) |
| 2065 | break; |
| 2066 | } |
| 2067 | |
| 2068 | for (page = ppnum; page < (ppnum + count); page++) |
| 2069 | { |
| 2070 | err = IOMemoryDescriptorWriteFromPhysical(vars->srcBuffer, 0, ptoa_64(page), page_size); |
| 2071 | if (err) |
| 2072 | { |
| 2073 | HIBLOG("IOMemoryDescriptorWriteFromPhysical %d [%ld] %x\n", __LINE__, (long)page, err); |
| 2074 | break; |
| 2075 | } |
| 2076 | |
| 2077 | sum = hibernate_sum_page(src, page); |
| 2078 | if (kWired & pageType) |
| 2079 | sum1 += sum; |
| 2080 | else |
| 2081 | sum2 += sum; |
| 2082 | |
| 2083 | clock_get_uptime(&startTime); |
| 2084 | |
| 2085 | pageCompressedSize = WKdm_compress ((WK_word*) src, (WK_word*) (src + page_size), PAGE_SIZE_IN_WORDS); |
| 2086 | |
| 2087 | clock_get_uptime(&endTime); |
| 2088 | ADD_ABSOLUTETIME(&compTime, &endTime); |
| 2089 | SUB_ABSOLUTETIME(&compTime, &startTime); |
| 2090 | compBytes += page_size; |
| 2091 | |
| 2092 | if (kIOHibernateModeEncrypt & gIOHibernateMode) |
| 2093 | pageCompressedSize = (pageCompressedSize + AES_BLOCK_SIZE - 1) & ~(AES_BLOCK_SIZE - 1); |
| 2094 | |
| 2095 | if (pageCompressedSize > page_size) |
| 2096 | { |
| 2097 | // HIBLOG("------------lose: %d\n", pageCompressedSize); |
| 2098 | pageCompressedSize = page_size; |
| 2099 | } |
| 2100 | |
| 2101 | if (pageCompressedSize != page_size) |
| 2102 | data = (src + page_size); |
| 2103 | else |
| 2104 | data = src; |
| 2105 | |
| 2106 | tag = pageCompressedSize | kIOHibernateTagSignature; |
| 2107 | err = IOPolledFileWrite(vars->fileVars, (const uint8_t *) &tag, sizeof(tag), cryptvars); |
| 2108 | if (kIOReturnSuccess != err) |
| 2109 | break; |
| 2110 | |
| 2111 | err = IOPolledFileWrite(vars->fileVars, data, (pageCompressedSize + 3) & ~3, cryptvars); |
| 2112 | if (kIOReturnSuccess != err) |
| 2113 | break; |
| 2114 | |
| 2115 | compressedSize += pageCompressedSize; |
| 2116 | if (pageCompressedSize) |
| 2117 | uncompressedSize += page_size; |
| 2118 | pagesDone++; |
| 2119 | |
| 2120 | if (vars->consoleMapping && (0 == (1023 & pagesDone))) |
| 2121 | { |
| 2122 | blob = ((pagesDone * kIOHibernateProgressCount) / pageCount); |
| 2123 | if (blob != lastBlob) |
| 2124 | { |
| 2125 | ProgressUpdate(gIOHibernateGraphicsInfo, vars->consoleMapping, lastBlob, blob); |
| 2126 | lastBlob = blob; |
| 2127 | } |
| 2128 | } |
| 2129 | if (0 == (8191 & pagesDone)) |
| 2130 | { |
| 2131 | clock_get_uptime(&endTime); |
| 2132 | SUB_ABSOLUTETIME(&endTime, &allTime); |
| 2133 | absolutetime_to_nanoseconds(endTime, &nsec); |
| 2134 | progressStamp = nsec / 750000000ULL; |
| 2135 | if (progressStamp != lastProgressStamp) |
| 2136 | { |
| 2137 | lastProgressStamp = progressStamp; |
| 2138 | HIBPRINT("pages %d (%d%%)\n", pagesDone, (100 * pagesDone) / pageCount); |
| 2139 | } |
| 2140 | } |
| 2141 | } |
| 2142 | if (kIOReturnSuccess != err) |
| 2143 | break; |
| 2144 | ppnum = page; |
| 2145 | } |
| 2146 | |
| 2147 | if (kIOReturnSuccess != err) |
| 2148 | break; |
| 2149 | |
| 2150 | if ((kEncrypt & pageType)) |
| 2151 | { |
| 2152 | vars->fileVars->encryptEnd = (vars->fileVars->position + AES_BLOCK_SIZE - 1) |
| 2153 | & ~(AES_BLOCK_SIZE - 1); |
| 2154 | HIBLOG("encryptEnd %qx\n", vars->fileVars->encryptEnd); |
| 2155 | } |
| 2156 | |
| 2157 | if (kWiredEncrypt != pageType) |
| 2158 | { |
| 2159 | // end of image1/2 - fill to next block |
| 2160 | err = IOPolledFileWrite(vars->fileVars, 0, 0, cryptvars); |
| 2161 | if (kIOReturnSuccess != err) |
| 2162 | break; |
| 2163 | } |
| 2164 | if (kWiredClear == pageType) |
| 2165 | { |
| 2166 | // end wired image |
| 2167 | header->encryptStart = vars->fileVars->encryptStart; |
| 2168 | header->encryptEnd = vars->fileVars->encryptEnd; |
| 2169 | image1Size = vars->fileVars->position; |
| 2170 | HIBLOG("image1Size %qd, encryptStart1 %qx, End1 %qx\n", |
| 2171 | image1Size, header->encryptStart, header->encryptEnd); |
| 2172 | } |
| 2173 | } |
| 2174 | if (kIOReturnSuccess != err) |
| 2175 | break; |
| 2176 | |
| 2177 | // Header: |
| 2178 | |
| 2179 | header->imageSize = vars->fileVars->position; |
| 2180 | header->image1Size = image1Size; |
| 2181 | header->bitmapSize = bitmap_size; |
| 2182 | header->pageCount = pageCount; |
| 2183 | |
| 2184 | header->restore1Sum = restore1Sum; |
| 2185 | header->image1Sum = sum1; |
| 2186 | header->image2Sum = sum2; |
| 2187 | |
| 2188 | count = vars->fileExtents->getLength(); |
| 2189 | if (count > sizeof(header->fileExtentMap)) |
| 2190 | { |
| 2191 | header->fileExtentMapSize = count; |
| 2192 | count = sizeof(header->fileExtentMap); |
| 2193 | } |
| 2194 | else |
| 2195 | header->fileExtentMapSize = sizeof(header->fileExtentMap); |
| 2196 | bcopy(&fileExtents[0], &header->fileExtentMap[0], count); |
| 2197 | |
| 2198 | header->deviceBase = vars->fileVars->block0; |
| 2199 | |
| 2200 | IOPolledFileSeek(vars->fileVars, 0); |
| 2201 | err = IOPolledFileWrite(vars->fileVars, |
| 2202 | (uint8_t *) header, sizeof(IOHibernateImageHeader), |
| 2203 | cryptvars); |
| 2204 | if (kIOReturnSuccess != err) |
| 2205 | break; |
| 2206 | err = IOPolledFileWrite(vars->fileVars, 0, 0, cryptvars); |
| 2207 | if (kIOReturnSuccess != err) |
| 2208 | break; |
| 2209 | err = IOHibernatePollerIODone(vars->fileVars, true); |
| 2210 | if (kIOReturnSuccess != err) |
| 2211 | break; |
| 2212 | } |
| 2213 | while (false); |
| 2214 | |
| 2215 | clock_get_uptime(&endTime); |
| 2216 | |
| 2217 | IOService::getPMRootDomain()->pmStatsRecordEvent( |
| 2218 | kIOPMStatsHibernateImageWrite | kIOPMStatsEventStopFlag, endTime); |
| 2219 | |
| 2220 | SUB_ABSOLUTETIME(&endTime, &allTime); |
| 2221 | absolutetime_to_nanoseconds(endTime, &nsec); |
| 2222 | HIBLOG("all time: %qd ms, ", |
| 2223 | nsec / 1000000ULL); |
| 2224 | |
| 2225 | absolutetime_to_nanoseconds(compTime, &nsec); |
| 2226 | HIBLOG("comp time: %qd ms, ", |
| 2227 | nsec / 1000000ULL); |
| 2228 | |
| 2229 | absolutetime_to_nanoseconds(decoTime, &nsec); |
| 2230 | HIBLOG("deco time: %qd ms, ", |
| 2231 | nsec / 1000000ULL); |
| 2232 | |
| 2233 | HIBLOG("\nimage %qd, uncompressed %qd (%d), compressed %qd (%d%%), sum1 %x, sum2 %x\n", |
| 2234 | header->imageSize, |
| 2235 | uncompressedSize, atop_32(uncompressedSize), compressedSize, |
| 2236 | uncompressedSize ? ((int) ((compressedSize * 100ULL) / uncompressedSize)) : 0, |
| 2237 | sum1, sum2); |
| 2238 | |
| 2239 | HIBLOG("wired_pages_encrypted %d, wired_pages_clear %d, dirty_pages_encrypted %d\n", |
| 2240 | wired_pages_encrypted, wired_pages_clear, dirty_pages_encrypted); |
| 2241 | |
| 2242 | if (vars->fileVars->io) |
| 2243 | (void) IOHibernatePollerIODone(vars->fileVars, false); |
| 2244 | |
| 2245 | if (pollerOpen) |
| 2246 | IOHibernatePollerClose(vars->fileVars, kIOPolledBeforeSleepState); |
| 2247 | |
| 2248 | if (vars->consoleMapping) |
| 2249 | ProgressUpdate(gIOHibernateGraphicsInfo, |
| 2250 | vars->consoleMapping, 0, kIOHibernateProgressCount); |
| 2251 | |
| 2252 | HIBLOG("hibernate_write_image done(%x)\n", err); |
| 2253 | |
| 2254 | // should we come back via regular wake, set the state in memory. |
| 2255 | gIOHibernateState = kIOHibernateStateInactive; |
| 2256 | |
| 2257 | KERNEL_DEBUG_CONSTANT(IOKDBG_CODE(DBG_HIBERNATE, 1) | DBG_FUNC_END, |
| 2258 | wired_pages_encrypted, wired_pages_clear, dirty_pages_encrypted, 0, 0); |
| 2259 | |
| 2260 | if (kIOReturnSuccess == err) |
| 2261 | { |
| 2262 | if (kIOHibernateModeSleep & gIOHibernateMode) |
| 2263 | { |
| 2264 | return (kIOHibernatePostWriteSleep); |
| 2265 | } |
| 2266 | else if(kIOHibernateModeRestart & gIOHibernateMode) |
| 2267 | { |
| 2268 | return (kIOHibernatePostWriteRestart); |
| 2269 | } |
| 2270 | else |
| 2271 | { |
| 2272 | /* by default, power down */ |
| 2273 | return (kIOHibernatePostWriteHalt); |
| 2274 | } |
| 2275 | } |
| 2276 | else if (kIOReturnAborted == err) |
| 2277 | { |
| 2278 | return (kIOHibernatePostWriteWake); |
| 2279 | } |
| 2280 | else |
| 2281 | { |
| 2282 | /* on error, sleep */ |
| 2283 | return (kIOHibernatePostWriteSleep); |
| 2284 | } |
| 2285 | } |
| 2286 | |
| 2287 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 2288 | |
| 2289 | extern "C" void |
| 2290 | hibernate_machine_init(void) |
| 2291 | { |
| 2292 | IOReturn err; |
| 2293 | uint32_t sum; |
| 2294 | uint32_t pagesDone; |
| 2295 | uint32_t pagesRead = 0; |
| 2296 | AbsoluteTime allTime, endTime; |
| 2297 | uint64_t nsec; |
| 2298 | uint32_t lastProgressStamp = 0; |
| 2299 | uint32_t progressStamp; |
| 2300 | uint64_t progressZeroPosition = 0; |
| 2301 | uint32_t blob, lastBlob = (uint32_t) -1L; |
| 2302 | hibernate_cryptvars_t * cryptvars = 0; |
| 2303 | |
| 2304 | IOHibernateVars * vars = &gIOHibernateVars; |
| 2305 | |
| 2306 | if (!vars->fileVars || !vars->fileVars->pollers || !vars->fileExtents) |
| 2307 | return; |
| 2308 | |
| 2309 | sum = gIOHibernateCurrentHeader->actualImage1Sum; |
| 2310 | pagesDone = gIOHibernateCurrentHeader->actualUncompressedPages; |
| 2311 | |
| 2312 | HIBLOG("hibernate_machine_init: state %d, image pages %d, sum was %x, image1Size %qx, conflictCount %d, nextFree %x\n", |
| 2313 | gIOHibernateState, pagesDone, sum, gIOHibernateCurrentHeader->image1Size, |
| 2314 | gIOHibernateCurrentHeader->conflictCount, gIOHibernateCurrentHeader->nextFree); |
| 2315 | |
| 2316 | if (kIOHibernateStateWakingFromHibernate != gIOHibernateState) |
| 2317 | { |
| 2318 | HIBLOG("regular wake\n"); |
| 2319 | return; |
| 2320 | } |
| 2321 | |
| 2322 | HIBPRINT("diag %x %x %x %x\n", |
| 2323 | gIOHibernateCurrentHeader->diag[0], gIOHibernateCurrentHeader->diag[1], |
| 2324 | gIOHibernateCurrentHeader->diag[2], gIOHibernateCurrentHeader->diag[3]); |
| 2325 | |
| 2326 | HIBPRINT("video %x %d %d %d status %x\n", |
| 2327 | gIOHibernateGraphicsInfo->physicalAddress, gIOHibernateGraphicsInfo->depth, |
| 2328 | gIOHibernateGraphicsInfo->width, gIOHibernateGraphicsInfo->height, gIOHibernateGraphicsInfo->gfxStatus); |
| 2329 | |
| 2330 | if ((kIOHibernateModeDiscardCleanActive | kIOHibernateModeDiscardCleanInactive) & gIOHibernateMode) |
| 2331 | hibernate_page_list_discard(vars->page_list); |
| 2332 | |
| 2333 | boot_args *args = (boot_args *) PE_state.bootArgs; |
| 2334 | |
| 2335 | if (vars->videoMapping |
| 2336 | && gIOHibernateGraphicsInfo->physicalAddress |
| 2337 | && (args->Video.v_baseAddr == gIOHibernateGraphicsInfo->physicalAddress)) |
| 2338 | { |
| 2339 | vars->videoMapSize = round_page(gIOHibernateGraphicsInfo->height |
| 2340 | * gIOHibernateGraphicsInfo->rowBytes); |
| 2341 | IOMapPages(kernel_map, |
| 2342 | vars->videoMapping, gIOHibernateGraphicsInfo->physicalAddress, |
| 2343 | vars->videoMapSize, kIOMapInhibitCache ); |
| 2344 | } |
| 2345 | |
| 2346 | uint8_t * src = (uint8_t *) vars->srcBuffer->getBytesNoCopy(); |
| 2347 | |
| 2348 | if (gIOHibernateWakeMapSize) |
| 2349 | { |
| 2350 | err = IOMemoryDescriptorWriteFromPhysical(vars->srcBuffer, 0, ptoa_64(gIOHibernateWakeMap), |
| 2351 | gIOHibernateWakeMapSize); |
| 2352 | if (kIOReturnSuccess == err) |
| 2353 | hibernate_newruntime_map(src, gIOHibernateWakeMapSize, |
| 2354 | gIOHibernateCurrentHeader->systemTableOffset); |
| 2355 | gIOHibernateWakeMap = 0; |
| 2356 | gIOHibernateWakeMapSize = 0; |
| 2357 | } |
| 2358 | |
| 2359 | uint32_t decoOffset; |
| 2360 | |
| 2361 | clock_get_uptime(&allTime); |
| 2362 | |
| 2363 | HIBLOG("IOHibernatePollerOpen(), ml_get_interrupts_enabled %d\n", ml_get_interrupts_enabled()); |
| 2364 | err = IOHibernatePollerOpen(vars->fileVars, kIOPolledAfterSleepState, 0); |
| 2365 | HIBLOG("IOHibernatePollerOpen(%x)\n", err); |
| 2366 | |
| 2367 | if (gIOHibernateCurrentHeader->previewSize) |
| 2368 | progressZeroPosition = gIOHibernateCurrentHeader->previewSize |
| 2369 | + gIOHibernateCurrentHeader->fileExtentMapSize |
| 2370 | - sizeof(gIOHibernateCurrentHeader->fileExtentMap) |
| 2371 | + ptoa_64(gIOHibernateCurrentHeader->restore1PageCount); |
| 2372 | |
| 2373 | IOPolledFileSeek(vars->fileVars, gIOHibernateCurrentHeader->image1Size); |
| 2374 | |
| 2375 | if (vars->videoMapSize) |
| 2376 | { |
| 2377 | lastBlob = ((vars->fileVars->position - progressZeroPosition) * kIOHibernateProgressCount) |
| 2378 | / (gIOHibernateCurrentHeader->imageSize - progressZeroPosition); |
| 2379 | ProgressUpdate(gIOHibernateGraphicsInfo, (uint8_t *) vars->videoMapping, 0, lastBlob); |
| 2380 | } |
| 2381 | |
| 2382 | cryptvars = (kIOHibernateModeEncrypt & gIOHibernateMode) ? &gIOHibernateCryptWakeContext : 0; |
| 2383 | if (kIOHibernateModeEncrypt & gIOHibernateMode) |
| 2384 | { |
| 2385 | cryptvars = &gIOHibernateCryptWakeContext; |
| 2386 | bcopy(&gIOHibernateCryptWakeVars->aes_iv[0], |
| 2387 | &cryptvars->aes_iv[0], |
| 2388 | sizeof(cryptvars->aes_iv)); |
| 2389 | } |
| 2390 | |
| 2391 | // kick off the read ahead |
| 2392 | vars->fileVars->io = false; |
| 2393 | vars->fileVars->bufferHalf = 0; |
| 2394 | vars->fileVars->bufferLimit = 0; |
| 2395 | vars->fileVars->lastRead = 0; |
| 2396 | vars->fileVars->bufferOffset = vars->fileVars->bufferLimit; |
| 2397 | |
| 2398 | IOPolledFileRead(vars->fileVars, 0, 0, cryptvars); |
| 2399 | vars->fileVars->bufferOffset = vars->fileVars->bufferLimit; |
| 2400 | // -- |
| 2401 | |
| 2402 | HIBLOG("hibernate_machine_init reading\n"); |
| 2403 | |
| 2404 | uint32_t * header = (uint32_t *) src; |
| 2405 | sum = 0; |
| 2406 | |
| 2407 | do |
| 2408 | { |
| 2409 | unsigned int count; |
| 2410 | unsigned int page; |
| 2411 | uint32_t tag; |
| 2412 | vm_offset_t ppnum, compressedSize; |
| 2413 | |
| 2414 | err = IOPolledFileRead(vars->fileVars, src, 8, cryptvars); |
| 2415 | if (kIOReturnSuccess != err) |
| 2416 | break; |
| 2417 | |
| 2418 | ppnum = header[0]; |
| 2419 | count = header[1]; |
| 2420 | |
| 2421 | // HIBPRINT("(%x, %x)\n", ppnum, count); |
| 2422 | |
| 2423 | if (!count) |
| 2424 | break; |
| 2425 | |
| 2426 | for (page = 0; page < count; page++) |
| 2427 | { |
| 2428 | err = IOPolledFileRead(vars->fileVars, (uint8_t *) &tag, 4, cryptvars); |
| 2429 | if (kIOReturnSuccess != err) |
| 2430 | break; |
| 2431 | |
| 2432 | compressedSize = kIOHibernateTagLength & tag; |
| 2433 | if (kIOHibernateTagSignature != (tag & ~kIOHibernateTagLength)) |
| 2434 | { |
| 2435 | err = kIOReturnIPCError; |
| 2436 | break; |
| 2437 | } |
| 2438 | |
| 2439 | if (!compressedSize) |
| 2440 | { |
| 2441 | ppnum++; |
| 2442 | pagesDone++; |
| 2443 | continue; |
| 2444 | } |
| 2445 | |
| 2446 | err = IOPolledFileRead(vars->fileVars, src, (compressedSize + 3) & ~3, cryptvars); |
| 2447 | if (kIOReturnSuccess != err) |
| 2448 | break; |
| 2449 | |
| 2450 | if (compressedSize < page_size) |
| 2451 | { |
| 2452 | decoOffset = page_size; |
| 2453 | WKdm_decompress((WK_word*) src, (WK_word*) (src + decoOffset), PAGE_SIZE_IN_WORDS); |
| 2454 | } |
| 2455 | else |
| 2456 | decoOffset = 0; |
| 2457 | |
| 2458 | sum += hibernate_sum_page((src + decoOffset), ppnum); |
| 2459 | |
| 2460 | err = IOMemoryDescriptorReadToPhysical(vars->srcBuffer, decoOffset, ptoa_64(ppnum), page_size); |
| 2461 | if (err) |
| 2462 | { |
| 2463 | HIBLOG("IOMemoryDescriptorReadToPhysical [%ld] %x\n", (long)ppnum, err); |
| 2464 | break; |
| 2465 | } |
| 2466 | |
| 2467 | ppnum++; |
| 2468 | pagesDone++; |
| 2469 | pagesRead++; |
| 2470 | |
| 2471 | if (vars->videoMapSize && (0 == (1023 & pagesDone))) |
| 2472 | { |
| 2473 | blob = ((vars->fileVars->position - progressZeroPosition) * kIOHibernateProgressCount) |
| 2474 | / (gIOHibernateCurrentHeader->imageSize - progressZeroPosition); |
| 2475 | if (blob != lastBlob) |
| 2476 | { |
| 2477 | ProgressUpdate(gIOHibernateGraphicsInfo, (uint8_t *) vars->videoMapping, lastBlob, blob); |
| 2478 | lastBlob = blob; |
| 2479 | } |
| 2480 | } |
| 2481 | |
| 2482 | if (0 == (8191 & pagesDone)) |
| 2483 | { |
| 2484 | clock_get_uptime(&endTime); |
| 2485 | SUB_ABSOLUTETIME(&endTime, &allTime); |
| 2486 | absolutetime_to_nanoseconds(endTime, &nsec); |
| 2487 | progressStamp = nsec / 750000000ULL; |
| 2488 | if (progressStamp != lastProgressStamp) |
| 2489 | { |
| 2490 | lastProgressStamp = progressStamp; |
| 2491 | HIBPRINT("pages %d (%d%%)\n", pagesDone, |
| 2492 | (100 * pagesDone) / gIOHibernateCurrentHeader->pageCount); |
| 2493 | } |
| 2494 | } |
| 2495 | } |
| 2496 | } |
| 2497 | while (true); |
| 2498 | |
| 2499 | if (kIOReturnSuccess != err) |
| 2500 | panic("Hibernate restore error %x", err); |
| 2501 | |
| 2502 | gIOHibernateCurrentHeader->actualImage2Sum = sum; |
| 2503 | |
| 2504 | if (vars->fileVars->io) |
| 2505 | (void) IOHibernatePollerIODone(vars->fileVars, false); |
| 2506 | |
| 2507 | err = IOHibernatePollerClose(vars->fileVars, kIOPolledAfterSleepState); |
| 2508 | |
| 2509 | if (vars->videoMapSize) |
| 2510 | ProgressUpdate(gIOHibernateGraphicsInfo, |
| 2511 | (uint8_t *) vars->videoMapping, 0, kIOHibernateProgressCount); |
| 2512 | |
| 2513 | clock_get_uptime(&endTime); |
| 2514 | |
| 2515 | IOService::getPMRootDomain()->pmStatsRecordEvent( |
| 2516 | kIOPMStatsHibernateImageRead | kIOPMStatsEventStartFlag, allTime); |
| 2517 | IOService::getPMRootDomain()->pmStatsRecordEvent( |
| 2518 | kIOPMStatsHibernateImageRead | kIOPMStatsEventStopFlag, endTime); |
| 2519 | |
| 2520 | SUB_ABSOLUTETIME(&endTime, &allTime); |
| 2521 | absolutetime_to_nanoseconds(endTime, &nsec); |
| 2522 | |
| 2523 | HIBLOG("hibernate_machine_init pagesDone %d sum2 %x, time: %qd ms\n", |
| 2524 | pagesDone, sum, nsec / 1000000ULL); |
| 2525 | |
| 2526 | KERNEL_DEBUG_CONSTANT(IOKDBG_CODE(DBG_HIBERNATE, 2) | DBG_FUNC_NONE, pagesRead, pagesDone, 0, 0, 0); |
| 2527 | } |
| 2528 | |
| 2529 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |