*/
/*
-
-Sleep:
-
-- PMRootDomain calls IOHibernateSystemSleep() before system sleep
-(devices awake, normal execution context)
-- IOHibernateSystemSleep opens the hibernation file (or partition) at the bsd level,
- grabs its extents and searches for a polling driver willing to work with that IOMedia.
- The BSD code makes an ioctl to the storage driver to get the partition base offset to
- the disk, and other ioctls to get the transfer constraints
- If successful, the file is written to make sure its initially not bootable (in case of
- later failure) and nvram set to point to the first block of the file. (Has to be done
- here so blocking is possible in nvram support).
- hibernate_setup() in osfmk is called to allocate page bitmaps for all dram, and
- page out any pages it wants to (currently zero, but probably some percentage of memory).
- Its assumed just allocating pages will cause the VM system to naturally select the best
- pages for eviction. It also copies processor flags needed for the restore path and sets
- a flag in the boot processor proc info.
- gIOHibernateState = kIOHibernateStateHibernating.
-- Regular sleep progresses - some drivers may inspect the root domain property
- kIOHibernateStateKey to modify behavior. The platform driver saves state to memory
- as usual but leaves motherboard I/O on.
-- Eventually the platform calls ml_ppc_sleep() in the shutdown context on the last cpu,
- at which point memory is ready to be saved. mapping_hibernate_flush() is called to get
- all ppc RC bits out of the hash table and caches into the mapping structures.
-- hibernate_write_image() is called (still in shutdown context, no blocking or preemption).
- hibernate_page_list_setall() is called to get a bitmap of dram pages that need to be saved.
- All pages are assumed to be saved (as part of the wired image) unless explicitly subtracted
- by hibernate_page_list_setall(), avoiding having to find arch dependent low level bits.
- The image header and block list are written. The header includes the second file extent so
- only the header block is needed to read the file, regardless of filesystem.
- The kernel segment "__HIB" is written uncompressed to the image. This segment of code and data
- (only) is used to decompress the image during wake/boot.
- Some additional pages are removed from the bitmaps - the buffers used for hibernation.
- The bitmaps are written to the image.
- More areas are removed from the bitmaps (after they have been written to the image) - the
- segment "__HIB" pages and interrupt stack.
- Each wired page is compressed and written and then each non-wired page. Compression and
- disk writes are in parallel.
- The image header is written to the start of the file and the polling driver closed.
- The machine powers down (or sleeps).
-
-Boot/Wake:
-
-- BootX sees the boot-image nvram variable containing the device and block number of the image,
- reads the header and if the signature is correct proceeds. The boot-image variable is cleared.
-- BootX reads the portion of the image used for wired pages, to memory. Its assumed this will fit
- in the OF memory environment, and the image is decrypted. There is no decompression in BootX,
- that is in the kernel's __HIB section.
-- BootX copies the "__HIB" section to its correct position in memory, quiesces and calls its entry
- hibernate_kernel_entrypoint(), passing the location of the image in memory. Translation is off,
- only code & data in that section is safe to call since all the other wired pages are still
- compressed in the image.
-- hibernate_kernel_entrypoint() removes pages occupied by the raw image from the page bitmaps.
- It uses the bitmaps to work out which pages can be uncompressed from the image to their final
- location directly, and copies those that can't to interim free pages. When the image has been
- completed, the copies are uncompressed, overwriting the wired image pages.
- hibernate_restore_phys_page() (in osfmk since its arch dependent, but part of the "__HIB" section)
- is used to get pages into place for 64bit.
-- the reset vector is called (at least on ppc), the kernel proceeds on a normal wake, with some
- changes conditional on the per proc flag - before VM is turned on the boot cpu, all mappings
- are removed from the software strutures, and the hash table is reinitialized.
-- After the platform CPU init code is called, hibernate_machine_init() is called to restore the rest
- of memory, using the polled mode driver, before other threads can run or any devices are turned on.
- This reduces the memory usage for BootX and allows decompression in parallel with disk reads,
- for the remaining non wired pages.
-- The polling driver is closed down and regular wake proceeds. When the kernel calls iokit to wake
- (normal execution context) hibernate_teardown() in osmfk is called to release any memory, the file
- is closed via bsd.
-
-Polled Mode I/O:
-
-IOHibernateSystemSleep() finds a polled mode interface to the ATA controller via a property in the
-registry, specifying an object of calls IOPolledInterface.
-
-Before the system goes to sleep it searches from the IOMedia object (could be a filesystem or
-partition) that the image is going to live, looking for polled interface properties. If it finds
-one the IOMedia object is passed to a "probe" call for the interface to accept or reject. All the
-interfaces found are kept in an ordered list.
-
-There is an Open/Close pair of calls made to each of the interfaces at various stages since there are
-few different contexts things happen in:
-
-- there is an Open/Close (Preflight) made before any part of the system has slept (I/O is all
-up and running) and after wake - this is safe to allocate memory and do anything. The device
-ignores sleep requests from that point since its a waste of time if it goes to sleep and
-immediately wakes back up for the image write.
-
-- there is an Open/Close (BeforeSleep) pair made around the image write operations that happen
-immediately before sleep. These can't block or allocate memory - the I/O system is asleep apart
-from the low level bits (motherboard I/O etc). There is only one thread running. The close can be
-used to flush and set the disk to sleep.
-
-- there is an Open/Close (AfterSleep) pair made around the image read operations that happen
-immediately after sleep. These can't block or allocate memory. This is happening after the platform
-expert has woken the low level bits of the system, but most of the I/O system has not. There is only
-one thread running.
-
-For the actual I/O, all the ops are with respect to a single IOMemoryDescriptor that was passed
-(prepared) to the Preflight Open() call. There is a read/write op, buffer offset to the IOMD for
-the data, an offset to the disk and length (block aligned 64 bit numbers), and completion callback.
-Each I/O is async but only one is ever outstanding. The polled interface has a checkForWork call
-that is called for the hardware to check for events, and complete the I/O via the callback.
-The hibernate path uses the same transfer constraints the regular cluster I/O path in BSD uses
-to restrict I/O ops.
-*/
+ *
+ * Sleep:
+ *
+ * - PMRootDomain calls IOHibernateSystemSleep() before system sleep
+ * (devices awake, normal execution context)
+ * - IOHibernateSystemSleep opens the hibernation file (or partition) at the bsd level,
+ * grabs its extents and searches for a polling driver willing to work with that IOMedia.
+ * The BSD code makes an ioctl to the storage driver to get the partition base offset to
+ * the disk, and other ioctls to get the transfer constraints
+ * If successful, the file is written to make sure its initially not bootable (in case of
+ * later failure) and nvram set to point to the first block of the file. (Has to be done
+ * here so blocking is possible in nvram support).
+ * hibernate_setup() in osfmk is called to allocate page bitmaps for all dram, and
+ * page out any pages it wants to (currently zero, but probably some percentage of memory).
+ * Its assumed just allocating pages will cause the VM system to naturally select the best
+ * pages for eviction. It also copies processor flags needed for the restore path and sets
+ * a flag in the boot processor proc info.
+ * gIOHibernateState = kIOHibernateStateHibernating.
+ * - Regular sleep progresses - some drivers may inspect the root domain property
+ * kIOHibernateStateKey to modify behavior. The platform driver saves state to memory
+ * as usual but leaves motherboard I/O on.
+ * - Eventually the platform calls ml_ppc_sleep() in the shutdown context on the last cpu,
+ * at which point memory is ready to be saved. mapping_hibernate_flush() is called to get
+ * all ppc RC bits out of the hash table and caches into the mapping structures.
+ * - hibernate_write_image() is called (still in shutdown context, no blocking or preemption).
+ * hibernate_page_list_setall() is called to get a bitmap of dram pages that need to be saved.
+ * All pages are assumed to be saved (as part of the wired image) unless explicitly subtracted
+ * by hibernate_page_list_setall(), avoiding having to find arch dependent low level bits.
+ * The image header and block list are written. The header includes the second file extent so
+ * only the header block is needed to read the file, regardless of filesystem.
+ * The kernel segment "__HIB" is written uncompressed to the image. This segment of code and data
+ * (only) is used to decompress the image during wake/boot.
+ * Some additional pages are removed from the bitmaps - the buffers used for hibernation.
+ * The bitmaps are written to the image.
+ * More areas are removed from the bitmaps (after they have been written to the image) - the
+ * segment "__HIB" pages and interrupt stack.
+ * Each wired page is compressed and written and then each non-wired page. Compression and
+ * disk writes are in parallel.
+ * The image header is written to the start of the file and the polling driver closed.
+ * The machine powers down (or sleeps).
+ *
+ * Boot/Wake:
+ *
+ * - BootX sees the boot-image nvram variable containing the device and block number of the image,
+ * reads the header and if the signature is correct proceeds. The boot-image variable is cleared.
+ * - BootX reads the portion of the image used for wired pages, to memory. Its assumed this will fit
+ * in the OF memory environment, and the image is decrypted. There is no decompression in BootX,
+ * that is in the kernel's __HIB section.
+ * - BootX copies the "__HIB" section to its correct position in memory, quiesces and calls its entry
+ * hibernate_kernel_entrypoint(), passing the location of the image in memory. Translation is off,
+ * only code & data in that section is safe to call since all the other wired pages are still
+ * compressed in the image.
+ * - hibernate_kernel_entrypoint() removes pages occupied by the raw image from the page bitmaps.
+ * It uses the bitmaps to work out which pages can be uncompressed from the image to their final
+ * location directly, and copies those that can't to interim free pages. When the image has been
+ * completed, the copies are uncompressed, overwriting the wired image pages.
+ * hibernate_restore_phys_page() (in osfmk since its arch dependent, but part of the "__HIB" section)
+ * is used to get pages into place for 64bit.
+ * - the reset vector is called (at least on ppc), the kernel proceeds on a normal wake, with some
+ * changes conditional on the per proc flag - before VM is turned on the boot cpu, all mappings
+ * are removed from the software strutures, and the hash table is reinitialized.
+ * - After the platform CPU init code is called, hibernate_machine_init() is called to restore the rest
+ * of memory, using the polled mode driver, before other threads can run or any devices are turned on.
+ * This reduces the memory usage for BootX and allows decompression in parallel with disk reads,
+ * for the remaining non wired pages.
+ * - The polling driver is closed down and regular wake proceeds. When the kernel calls iokit to wake
+ * (normal execution context) hibernate_teardown() in osmfk is called to release any memory, the file
+ * is closed via bsd.
+ *
+ * Polled Mode I/O:
+ *
+ * IOHibernateSystemSleep() finds a polled mode interface to the ATA controller via a property in the
+ * registry, specifying an object of calls IOPolledInterface.
+ *
+ * Before the system goes to sleep it searches from the IOMedia object (could be a filesystem or
+ * partition) that the image is going to live, looking for polled interface properties. If it finds
+ * one the IOMedia object is passed to a "probe" call for the interface to accept or reject. All the
+ * interfaces found are kept in an ordered list.
+ *
+ * There is an Open/Close pair of calls made to each of the interfaces at various stages since there are
+ * few different contexts things happen in:
+ *
+ * - there is an Open/Close (Preflight) made before any part of the system has slept (I/O is all
+ * up and running) and after wake - this is safe to allocate memory and do anything. The device
+ * ignores sleep requests from that point since its a waste of time if it goes to sleep and
+ * immediately wakes back up for the image write.
+ *
+ * - there is an Open/Close (BeforeSleep) pair made around the image write operations that happen
+ * immediately before sleep. These can't block or allocate memory - the I/O system is asleep apart
+ * from the low level bits (motherboard I/O etc). There is only one thread running. The close can be
+ * used to flush and set the disk to sleep.
+ *
+ * - there is an Open/Close (AfterSleep) pair made around the image read operations that happen
+ * immediately after sleep. These can't block or allocate memory. This is happening after the platform
+ * expert has woken the low level bits of the system, but most of the I/O system has not. There is only
+ * one thread running.
+ *
+ * For the actual I/O, all the ops are with respect to a single IOMemoryDescriptor that was passed
+ * (prepared) to the Preflight Open() call. There is a read/write op, buffer offset to the IOMD for
+ * the data, an offset to the disk and length (block aligned 64 bit numbers), and completion callback.
+ * Each I/O is async but only one is ever outstanding. The polled interface has a checkForWork call
+ * that is called for the hardware to check for events, and complete the I/O via the callback.
+ * The hibernate path uses the same transfer constraints the regular cluster I/O path in BSD uses
+ * to restrict I/O ops.
+ */
#include <sys/systm.h>
#include <i386/cpuid.h>
#include <san/kasan.h>
-extern "C" addr64_t kvtophys(vm_offset_t va);
-extern "C" ppnum_t pmap_find_phys(pmap_t pmap, addr64_t va);
+extern "C" addr64_t kvtophys(vm_offset_t va);
+extern "C" ppnum_t pmap_find_phys(pmap_t pmap, addr64_t va);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-#define DISABLE_TRIM 0
-#define TRIM_DELAY 25000
+#define DISABLE_TRIM 0
+#define TRIM_DELAY 25000
-extern unsigned int save_kdebug_enable;
-extern uint32_t gIOHibernateState;
-uint32_t gIOHibernateMode;
-static char gIOHibernateBootSignature[256+1];
-static char gIOHibernateFilename[MAXPATHLEN+1];
+extern unsigned int save_kdebug_enable;
+extern uint32_t gIOHibernateState;
+uint32_t gIOHibernateMode;
+static char gIOHibernateBootSignature[256 + 1];
+static char gIOHibernateFilename[MAXPATHLEN + 1];
-static uuid_string_t gIOHibernateBridgeBootSessionUUIDString;
+static uuid_string_t gIOHibernateBridgeBootSessionUUIDString;
-static uint32_t gIOHibernateFreeRatio = 0; // free page target (percent)
-uint32_t gIOHibernateFreeTime = 0*1000; // max time to spend freeing pages (ms)
-static uint64_t gIOHibernateCompression = 0x80; // default compression 50%
+static uint32_t gIOHibernateFreeRatio = 0; // free page target (percent)
+uint32_t gIOHibernateFreeTime = 0 * 1000; // max time to spend freeing pages (ms)
+static uint64_t gIOHibernateCompression = 0x80; // default compression 50%
boolean_t gIOHibernateStandbyDisabled;
-static IODTNVRAM * gIOOptionsEntry;
-static IORegistryEntry * gIOChosenEntry;
+static IODTNVRAM * gIOOptionsEntry;
+static IORegistryEntry * gIOChosenEntry;
-static const OSSymbol * gIOHibernateBootImageKey;
-static const OSSymbol * gIOHibernateBootSignatureKey;
-static const OSSymbol * gIOBridgeBootSessionUUIDKey;
+static const OSSymbol * gIOHibernateBootImageKey;
+static const OSSymbol * gIOHibernateBootSignatureKey;
+static const OSSymbol * gIOBridgeBootSessionUUIDKey;
#if defined(__i386__) || defined(__x86_64__)
-static const OSSymbol * gIOHibernateRTCVariablesKey;
+static const OSSymbol * gIOHibernateRTCVariablesKey;
static const OSSymbol * gIOHibernateBoot0082Key;
static const OSSymbol * gIOHibernateBootNextKey;
-static OSData * gIOHibernateBoot0082Data;
-static OSData * gIOHibernateBootNextData;
-static OSObject * gIOHibernateBootNextSave;
-
-static IOPolledFileIOVars * gDebugImageFileVars;
-static IOLock * gDebugImageLock;
+static OSData * gIOHibernateBoot0082Data;
+static OSData * gIOHibernateBootNextData;
+static OSObject * gIOHibernateBootNextSave;
#endif /* defined(__i386__) || defined(__x86_64__) */
static IOLock * gFSLock;
- uint32_t gFSState;
+uint32_t gFSState;
static thread_call_t gIOHibernateTrimCalloutEntry;
-static IOPolledFileIOVars gFileVars;
-static IOHibernateVars gIOHibernateVars;
-static IOPolledFileCryptVars gIOHibernateCryptWakeContext;
-static hibernate_graphics_t _hibernateGraphics;
-static hibernate_graphics_t * gIOHibernateGraphicsInfo = &_hibernateGraphics;
-static hibernate_statistics_t _hibernateStats;
-static hibernate_statistics_t * gIOHibernateStats = &_hibernateStats;
-
-enum
-{
- kFSIdle = 0,
- kFSOpening = 2,
- kFSOpened = 3,
- kFSTimedOut = 4,
- kFSTrimDelay = 5
+static IOPolledFileIOVars gFileVars;
+static IOHibernateVars gIOHibernateVars;
+static IOPolledFileCryptVars gIOHibernateCryptWakeContext;
+static hibernate_graphics_t _hibernateGraphics;
+static hibernate_graphics_t * gIOHibernateGraphicsInfo = &_hibernateGraphics;
+static hibernate_statistics_t _hibernateStats;
+static hibernate_statistics_t * gIOHibernateStats = &_hibernateStats;
+
+enum{
+ kFSIdle = 0,
+ kFSOpening = 2,
+ kFSOpened = 3,
+ kFSTimedOut = 4,
+ kFSTrimDelay = 5
};
static IOReturn IOHibernateDone(IOHibernateVars * vars);
static IOReturn
IOMemoryDescriptorWriteFromPhysical(IOMemoryDescriptor * md,
- IOByteCount offset, addr64_t bytes, IOByteCount length)
+ IOByteCount offset, addr64_t bytes, IOByteCount length)
{
- addr64_t srcAddr = bytes;
- IOByteCount remaining;
+ addr64_t srcAddr = bytes;
+ IOByteCount remaining;
- remaining = length = min(length, md->getLength() - offset);
- while (remaining) { // (process another target segment?)
- addr64_t dstAddr64;
- IOByteCount dstLen;
+ remaining = length = min(length, md->getLength() - offset);
+ while (remaining) { // (process another target segment?)
+ addr64_t dstAddr64;
+ IOByteCount dstLen;
- dstAddr64 = md->getPhysicalSegment(offset, &dstLen, kIOMemoryMapperNone);
- if (!dstAddr64)
- break;
+ dstAddr64 = md->getPhysicalSegment(offset, &dstLen, kIOMemoryMapperNone);
+ if (!dstAddr64) {
+ break;
+ }
- // Clip segment length to remaining
- if (dstLen > remaining)
- dstLen = remaining;
+ // Clip segment length to remaining
+ if (dstLen > remaining) {
+ dstLen = remaining;
+ }
#if 1
- bcopy_phys(srcAddr, dstAddr64, dstLen);
+ bcopy_phys(srcAddr, dstAddr64, dstLen);
#else
- copypv(srcAddr, dstAddr64, dstLen,
- cppvPsnk | cppvFsnk | cppvNoRefSrc | cppvNoModSnk | cppvKmap);
+ copypv(srcAddr, dstAddr64, dstLen,
+ cppvPsnk | cppvFsnk | cppvNoRefSrc | cppvNoModSnk | cppvKmap);
#endif
- srcAddr += dstLen;
- offset += dstLen;
- remaining -= dstLen;
- }
+ srcAddr += dstLen;
+ offset += dstLen;
+ remaining -= dstLen;
+ }
- assert(!remaining);
+ assert(!remaining);
- return remaining ? kIOReturnUnderrun : kIOReturnSuccess;
+ return remaining ? kIOReturnUnderrun : kIOReturnSuccess;
}
// copy from MD to phys addr
static IOReturn
IOMemoryDescriptorReadToPhysical(IOMemoryDescriptor * md,
- IOByteCount offset, addr64_t bytes, IOByteCount length)
+ IOByteCount offset, addr64_t bytes, IOByteCount length)
{
- addr64_t dstAddr = bytes;
- IOByteCount remaining;
+ addr64_t dstAddr = bytes;
+ IOByteCount remaining;
- remaining = length = min(length, md->getLength() - offset);
- while (remaining) { // (process another target segment?)
- addr64_t srcAddr64;
- IOByteCount dstLen;
+ remaining = length = min(length, md->getLength() - offset);
+ while (remaining) { // (process another target segment?)
+ addr64_t srcAddr64;
+ IOByteCount dstLen;
- srcAddr64 = md->getPhysicalSegment(offset, &dstLen, kIOMemoryMapperNone);
- if (!srcAddr64)
- break;
+ srcAddr64 = md->getPhysicalSegment(offset, &dstLen, kIOMemoryMapperNone);
+ if (!srcAddr64) {
+ break;
+ }
- // Clip segment length to remaining
- if (dstLen > remaining)
- dstLen = remaining;
+ // Clip segment length to remaining
+ if (dstLen > remaining) {
+ dstLen = remaining;
+ }
#if 1
- bcopy_phys(srcAddr64, dstAddr, dstLen);
+ bcopy_phys(srcAddr64, dstAddr, dstLen);
#else
- copypv(srcAddr, dstAddr64, dstLen,
- cppvPsnk | cppvFsnk | cppvNoRefSrc | cppvNoModSnk | cppvKmap);
+ copypv(srcAddr, dstAddr64, dstLen,
+ cppvPsnk | cppvFsnk | cppvNoRefSrc | cppvNoModSnk | cppvKmap);
#endif
- dstAddr += dstLen;
- offset += dstLen;
- remaining -= dstLen;
- }
+ dstAddr += dstLen;
+ offset += dstLen;
+ remaining -= dstLen;
+ }
- assert(!remaining);
+ assert(!remaining);
- return remaining ? kIOReturnUnderrun : kIOReturnSuccess;
+ return remaining ? kIOReturnUnderrun : kIOReturnSuccess;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
void
hibernate_set_page_state(hibernate_page_list_t * page_list, hibernate_page_list_t * page_list_wired,
- vm_offset_t ppnum, vm_offset_t count, uint32_t kind)
+ vm_offset_t ppnum, vm_offset_t count, uint32_t kind)
{
- count += ppnum;
- switch (kind)
- {
- case kIOHibernatePageStateUnwiredSave:
- // unwired save
- for (; ppnum < count; ppnum++)
- {
- hibernate_page_bitset(page_list, FALSE, ppnum);
- hibernate_page_bitset(page_list_wired, TRUE, ppnum);
- }
- break;
- case kIOHibernatePageStateWiredSave:
- // wired save
- for (; ppnum < count; ppnum++)
- {
- hibernate_page_bitset(page_list, FALSE, ppnum);
- hibernate_page_bitset(page_list_wired, FALSE, ppnum);
- }
- break;
- case kIOHibernatePageStateFree:
- // free page
- for (; ppnum < count; ppnum++)
- {
- hibernate_page_bitset(page_list, TRUE, ppnum);
- hibernate_page_bitset(page_list_wired, TRUE, ppnum);
- }
- break;
- default:
- panic("hibernate_set_page_state");
- }
+ count += ppnum;
+ switch (kind) {
+ case kIOHibernatePageStateUnwiredSave:
+ // unwired save
+ for (; ppnum < count; ppnum++) {
+ hibernate_page_bitset(page_list, FALSE, ppnum);
+ hibernate_page_bitset(page_list_wired, TRUE, ppnum);
+ }
+ break;
+ case kIOHibernatePageStateWiredSave:
+ // wired save
+ for (; ppnum < count; ppnum++) {
+ hibernate_page_bitset(page_list, FALSE, ppnum);
+ hibernate_page_bitset(page_list_wired, FALSE, ppnum);
+ }
+ break;
+ case kIOHibernatePageStateFree:
+ // free page
+ for (; ppnum < count; ppnum++) {
+ hibernate_page_bitset(page_list, TRUE, ppnum);
+ hibernate_page_bitset(page_list_wired, TRUE, ppnum);
+ }
+ break;
+ default:
+ panic("hibernate_set_page_state");
+ }
}
static vm_offset_t
hibernate_page_list_iterate(hibernate_page_list_t * list, vm_offset_t * pPage)
{
- uint32_t page = *pPage;
- uint32_t count;
- hibernate_bitmap_t * bitmap;
-
- while ((bitmap = hibernate_page_bitmap_pin(list, &page)))
- {
- count = hibernate_page_bitmap_count(bitmap, TRUE, page);
- if (!count)
- break;
- page += count;
- if (page <= bitmap->last_page)
- break;
- }
-
- *pPage = page;
- if (bitmap)
- count = hibernate_page_bitmap_count(bitmap, FALSE, page);
- else
- count = 0;
-
- return (count);
+ uint32_t page = *pPage;
+ uint32_t count;
+ hibernate_bitmap_t * bitmap;
+
+ while ((bitmap = hibernate_page_bitmap_pin(list, &page))) {
+ count = hibernate_page_bitmap_count(bitmap, TRUE, page);
+ if (!count) {
+ break;
+ }
+ page += count;
+ if (page <= bitmap->last_page) {
+ break;
+ }
+ }
+
+ *pPage = page;
+ if (bitmap) {
+ count = hibernate_page_bitmap_count(bitmap, FALSE, page);
+ } else {
+ count = 0;
+ }
+
+ return count;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
IOReturn
IOHibernateSystemSleep(void)
{
- IOReturn err;
- OSData * nvramData;
- OSObject * obj;
- OSString * str;
- OSNumber * num;
- bool dsSSD, vmflush, swapPinned;
- IOHibernateVars * vars;
- uint64_t setFileSize = 0;
-
- gIOHibernateState = kIOHibernateStateInactive;
-
- gIOHibernateDebugFlags = 0;
- if (kIOLogHibernate & gIOKitDebug)
- gIOHibernateDebugFlags |= kIOHibernateDebugRestoreLogs;
-
- if (IOService::getPMRootDomain()->getHibernateSettings(
- &gIOHibernateMode, &gIOHibernateFreeRatio, &gIOHibernateFreeTime))
- {
- if (kIOHibernateModeSleep & gIOHibernateMode)
- // default to discard clean for safe sleep
- gIOHibernateMode ^= (kIOHibernateModeDiscardCleanInactive
- | kIOHibernateModeDiscardCleanActive);
- }
-
- if ((obj = IOService::getPMRootDomain()->copyProperty(kIOHibernateFileKey)))
- {
- if ((str = OSDynamicCast(OSString, obj)))
- strlcpy(gIOHibernateFilename, str->getCStringNoCopy(),
+ IOReturn err;
+ OSData * nvramData;
+ OSObject * obj;
+ OSString * str;
+ OSNumber * num;
+ bool dsSSD, vmflush, swapPinned;
+ IOHibernateVars * vars;
+ uint64_t setFileSize = 0;
+
+ gIOHibernateState = kIOHibernateStateInactive;
+
+ gIOHibernateDebugFlags = 0;
+ if (kIOLogHibernate & gIOKitDebug) {
+ gIOHibernateDebugFlags |= kIOHibernateDebugRestoreLogs;
+ }
+
+ if (IOService::getPMRootDomain()->getHibernateSettings(
+ &gIOHibernateMode, &gIOHibernateFreeRatio, &gIOHibernateFreeTime)) {
+ if (kIOHibernateModeSleep & gIOHibernateMode) {
+ // default to discard clean for safe sleep
+ gIOHibernateMode ^= (kIOHibernateModeDiscardCleanInactive
+ | kIOHibernateModeDiscardCleanActive);
+ }
+ }
+
+ if ((obj = IOService::getPMRootDomain()->copyProperty(kIOHibernateFileKey))) {
+ if ((str = OSDynamicCast(OSString, obj))) {
+ strlcpy(gIOHibernateFilename, str->getCStringNoCopy(),
sizeof(gIOHibernateFilename));
- obj->release();
- }
-
- if (!gIOHibernateMode || !gIOHibernateFilename[0])
- return (kIOReturnUnsupported);
-
- HIBLOG("hibernate image path: %s\n", gIOHibernateFilename);
-
- vars = IONew(IOHibernateVars, 1);
- if (!vars) return (kIOReturnNoMemory);
- bzero(vars, sizeof(*vars));
-
- IOLockLock(gFSLock);
- if (!gIOHibernateTrimCalloutEntry)
- {
- gIOHibernateTrimCalloutEntry = thread_call_allocate(&IOHibernateSystemPostWakeTrim, &gFSLock);
- }
- IOHibernateSystemPostWakeTrim(NULL, NULL);
- thread_call_cancel(gIOHibernateTrimCalloutEntry);
- if (kFSIdle != gFSState)
- {
- HIBLOG("hibernate file busy\n");
- IOLockUnlock(gFSLock);
- IODelete(vars, IOHibernateVars, 1);
- return (kIOReturnBusy);
- }
- gFSState = kFSOpening;
- IOLockUnlock(gFSLock);
-
- swapPinned = false;
- do
- {
- vars->srcBuffer = IOBufferMemoryDescriptor::withOptions(kIODirectionOutIn,
- 2 * page_size + WKdm_SCRATCH_BUF_SIZE_INTERNAL, page_size);
-
- vars->handoffBuffer = IOBufferMemoryDescriptor::withOptions(kIODirectionOutIn,
- ptoa_64(gIOHibernateHandoffPageCount), page_size);
-
- if (!vars->srcBuffer || !vars->handoffBuffer)
- {
- err = kIOReturnNoMemory;
- break;
- }
-
- if ((obj = IOService::getPMRootDomain()->copyProperty(kIOHibernateFileMinSizeKey)))
- {
- if ((num = OSDynamicCast(OSNumber, obj))) vars->fileMinSize = num->unsigned64BitValue();
- obj->release();
- }
- if ((obj = IOService::getPMRootDomain()->copyProperty(kIOHibernateFileMaxSizeKey)))
- {
- if ((num = OSDynamicCast(OSNumber, obj))) vars->fileMaxSize = num->unsigned64BitValue();
- obj->release();
- }
-
- boolean_t encryptedswap = true;
- uint32_t pageCount;
- AbsoluteTime startTime, endTime;
- uint64_t nsec;
-
- bzero(gIOHibernateCurrentHeader, sizeof(IOHibernateImageHeader));
- gIOHibernateCurrentHeader->debugFlags = gIOHibernateDebugFlags;
- gIOHibernateCurrentHeader->signature = kIOHibernateHeaderInvalidSignature;
+ }
+ obj->release();
+ }
- vmflush = ((kOSBooleanTrue == IOService::getPMRootDomain()->getProperty(kIOPMDeepSleepEnabledKey)));
- err = hibernate_alloc_page_lists(&vars->page_list,
- &vars->page_list_wired,
- &vars->page_list_pal);
- if (KERN_SUCCESS != err) break;
-
- err = hibernate_pin_swap(TRUE);
- if (KERN_SUCCESS != err) break;
- swapPinned = true;
-
- if (vars->fileMinSize || (kIOHibernateModeFileResize & gIOHibernateMode))
- {
- hibernate_page_list_setall(vars->page_list,
- vars->page_list_wired,
- vars->page_list_pal,
- true /* preflight */,
- vmflush /* discard */,
- &pageCount);
- PE_Video consoleInfo;
- bzero(&consoleInfo, sizeof(consoleInfo));
- IOService::getPlatform()->getConsoleInfo(&consoleInfo);
-
- // estimate: 6% increase in pages compressed
- // screen preview 2 images compressed 0%
- setFileSize = ((ptoa_64((106 * pageCount) / 100) * gIOHibernateCompression) >> 8)
- + vars->page_list->list_size
- + (consoleInfo.v_width * consoleInfo.v_height * 8);
- enum { setFileRound = 1024*1024ULL };
- setFileSize = ((setFileSize + setFileRound) & ~(setFileRound - 1));
-
- HIBLOG("hibernate_page_list_setall preflight pageCount %d est comp %qd setfile %qd min %qd\n",
- pageCount, (100ULL * gIOHibernateCompression) >> 8,
- setFileSize, vars->fileMinSize);
-
- if (!(kIOHibernateModeFileResize & gIOHibernateMode)
- && (setFileSize < vars->fileMinSize))
- {
- setFileSize = vars->fileMinSize;
- }
- }
-
- // Invalidate the image file
- if (gDebugImageLock) {
- IOLockLock(gDebugImageLock);
- if (gDebugImageFileVars != 0) {
- IOSetBootImageNVRAM(0);
- IOPolledFileClose(&gDebugImageFileVars, 0, 0, 0, 0, 0);
- }
- IOLockUnlock(gDebugImageLock);
- }
-
- vars->volumeCryptKeySize = sizeof(vars->volumeCryptKey);
- err = IOPolledFileOpen(gIOHibernateFilename, setFileSize, 0,
- gIOHibernateCurrentHeader, sizeof(gIOHibernateCurrentHeader),
- &vars->fileVars, &nvramData,
- &vars->volumeCryptKey[0], &vars->volumeCryptKeySize);
-
- if (KERN_SUCCESS != err)
- {
- IOLockLock(gFSLock);
- if (kFSOpening != gFSState) err = kIOReturnTimeout;
- IOLockUnlock(gFSLock);
- }
-
- if (KERN_SUCCESS != err)
- {
- HIBLOG("IOPolledFileOpen(%x)\n", err);
- break;
- }
-
- // write extents for debug data usage in EFI
- IOWriteExtentsToFile(vars->fileVars, kIOHibernateHeaderOpenSignature);
-
- err = IOPolledFilePollersSetup(vars->fileVars, kIOPolledPreflightState);
- if (KERN_SUCCESS != err) break;
-
- clock_get_uptime(&startTime);
- err = hibernate_setup(gIOHibernateCurrentHeader,
- vmflush,
- vars->page_list, vars->page_list_wired, vars->page_list_pal);
- clock_get_uptime(&endTime);
- SUB_ABSOLUTETIME(&endTime, &startTime);
- absolutetime_to_nanoseconds(endTime, &nsec);
-
- boolean_t haveSwapPin, hibFileSSD;
- haveSwapPin = vm_swap_files_pinned();
-
- hibFileSSD = (kIOPolledFileSSD & vars->fileVars->flags);
-
- HIBLOG("hibernate_setup(%d) took %qd ms, swapPin(%d) ssd(%d)\n",
- err, nsec / 1000000ULL,
- haveSwapPin, hibFileSSD);
- if (KERN_SUCCESS != err) break;
-
- gIOHibernateStandbyDisabled = ((!haveSwapPin || !hibFileSSD));
-
- dsSSD = ((0 != (kIOPolledFileSSD & vars->fileVars->flags))
- && (kOSBooleanTrue == IOService::getPMRootDomain()->getProperty(kIOPMDeepSleepEnabledKey)));
-
- if (dsSSD) gIOHibernateCurrentHeader->options |= kIOHibernateOptionSSD | kIOHibernateOptionColor;
- else gIOHibernateCurrentHeader->options |= kIOHibernateOptionProgress;
+ if (!gIOHibernateMode || !gIOHibernateFilename[0]) {
+ return kIOReturnUnsupported;
+ }
+ HIBLOG("hibernate image path: %s\n", gIOHibernateFilename);
-#if defined(__i386__) || defined(__x86_64__)
- if (vars->volumeCryptKeySize &&
- (kOSBooleanTrue != IOService::getPMRootDomain()->getProperty(kIOPMDestroyFVKeyOnStandbyKey)))
- {
- uintptr_t smcVars[2];
- smcVars[0] = vars->volumeCryptKeySize;
- smcVars[1] = (uintptr_t)(void *) &gIOHibernateVars.volumeCryptKey[0];
+ vars = IONew(IOHibernateVars, 1);
+ if (!vars) {
+ return kIOReturnNoMemory;
+ }
+ bzero(vars, sizeof(*vars));
- IOService::getPMRootDomain()->setProperty(kIOHibernateSMCVariablesKey, smcVars, sizeof(smcVars));
- bzero(smcVars, sizeof(smcVars));
+ IOLockLock(gFSLock);
+ if (!gIOHibernateTrimCalloutEntry) {
+ gIOHibernateTrimCalloutEntry = thread_call_allocate(&IOHibernateSystemPostWakeTrim, &gFSLock);
}
-#endif
+ IOHibernateSystemPostWakeTrim(NULL, NULL);
+ thread_call_cancel(gIOHibernateTrimCalloutEntry);
+ if (kFSIdle != gFSState) {
+ HIBLOG("hibernate file busy\n");
+ IOLockUnlock(gFSLock);
+ IODelete(vars, IOHibernateVars, 1);
+ return kIOReturnBusy;
+ }
+ gFSState = kFSOpening;
+ IOLockUnlock(gFSLock);
+ swapPinned = false;
+ do{
+ vars->srcBuffer = IOBufferMemoryDescriptor::withOptions(kIODirectionOutIn,
+ 2 * page_size + WKdm_SCRATCH_BUF_SIZE_INTERNAL, page_size);
- if (encryptedswap || vars->volumeCryptKeySize)
- gIOHibernateMode ^= kIOHibernateModeEncrypt;
+ vars->handoffBuffer = IOBufferMemoryDescriptor::withOptions(kIODirectionOutIn,
+ ptoa_64(gIOHibernateHandoffPageCount), page_size);
- if (kIOHibernateOptionProgress & gIOHibernateCurrentHeader->options)
- {
- vars->videoAllocSize = kVideoMapSize;
- if (KERN_SUCCESS != kmem_alloc_pageable(kernel_map, &vars->videoMapping, vars->videoAllocSize, VM_KERN_MEMORY_IOKIT))
- vars->videoMapping = 0;
- }
+ if (!vars->srcBuffer || !vars->handoffBuffer) {
+ err = kIOReturnNoMemory;
+ break;
+ }
- // generate crypt keys
- for (uint32_t i = 0; i < sizeof(vars->wiredCryptKey); i++)
- vars->wiredCryptKey[i] = random();
- for (uint32_t i = 0; i < sizeof(vars->cryptKey); i++)
- vars->cryptKey[i] = random();
+ if ((obj = IOService::getPMRootDomain()->copyProperty(kIOHibernateFileMinSizeKey))) {
+ if ((num = OSDynamicCast(OSNumber, obj))) {
+ vars->fileMinSize = num->unsigned64BitValue();
+ }
+ obj->release();
+ }
+ if ((obj = IOService::getPMRootDomain()->copyProperty(kIOHibernateFileMaxSizeKey))) {
+ if ((num = OSDynamicCast(OSNumber, obj))) {
+ vars->fileMaxSize = num->unsigned64BitValue();
+ }
+ obj->release();
+ }
- // set nvram
+ boolean_t encryptedswap = true;
+ uint32_t pageCount;
+ AbsoluteTime startTime, endTime;
+ uint64_t nsec;
+
+ bzero(gIOHibernateCurrentHeader, sizeof(IOHibernateImageHeader));
+ gIOHibernateCurrentHeader->debugFlags = gIOHibernateDebugFlags;
+ gIOHibernateCurrentHeader->signature = kIOHibernateHeaderInvalidSignature;
+
+ vmflush = ((kOSBooleanTrue == IOService::getPMRootDomain()->getProperty(kIOPMDeepSleepEnabledKey)));
+ err = hibernate_alloc_page_lists(&vars->page_list,
+ &vars->page_list_wired,
+ &vars->page_list_pal);
+ if (KERN_SUCCESS != err) {
+ HIBLOG("%s err, hibernate_alloc_page_lists return 0x%x\n", __FUNCTION__, err);
+ break;
+ }
- IOSetBootImageNVRAM(nvramData);
- nvramData->release();
+ err = hibernate_pin_swap(TRUE);
+ if (KERN_SUCCESS != err) {
+ HIBLOG("%s error, hibernate_pin_swap return 0x%x\n", __FUNCTION__, err);
+ break;
+ }
+ swapPinned = true;
+
+ if (vars->fileMinSize || (kIOHibernateModeFileResize & gIOHibernateMode)) {
+ hibernate_page_list_setall(vars->page_list,
+ vars->page_list_wired,
+ vars->page_list_pal,
+ true /* preflight */,
+ vmflush /* discard */,
+ &pageCount);
+ PE_Video consoleInfo;
+ bzero(&consoleInfo, sizeof(consoleInfo));
+ IOService::getPlatform()->getConsoleInfo(&consoleInfo);
+
+ // estimate: 6% increase in pages compressed
+ // screen preview 2 images compressed 0%
+ setFileSize = ((ptoa_64((106 * pageCount) / 100) * gIOHibernateCompression) >> 8)
+ + vars->page_list->list_size
+ + (consoleInfo.v_width * consoleInfo.v_height * 8);
+ enum { setFileRound = 1024 * 1024ULL };
+ setFileSize = ((setFileSize + setFileRound) & ~(setFileRound - 1));
+
+ HIBLOG("hibernate_page_list_setall preflight pageCount %d est comp %qd setfile %qd min %qd\n",
+ pageCount, (100ULL * gIOHibernateCompression) >> 8,
+ setFileSize, vars->fileMinSize);
+
+ if (!(kIOHibernateModeFileResize & gIOHibernateMode)
+ && (setFileSize < vars->fileMinSize)) {
+ setFileSize = vars->fileMinSize;
+ }
+ }
-#if defined(__i386__) || defined(__x86_64__)
- {
- struct AppleRTCHibernateVars
- {
- uint8_t signature[4];
- uint32_t revision;
- uint8_t booterSignature[20];
- uint8_t wiredCryptKey[16];
- };
- AppleRTCHibernateVars rtcVars;
- OSData * data;
-
- rtcVars.signature[0] = 'A';
- rtcVars.signature[1] = 'A';
- rtcVars.signature[2] = 'P';
- rtcVars.signature[3] = 'L';
- rtcVars.revision = 1;
- bcopy(&vars->wiredCryptKey[0], &rtcVars.wiredCryptKey[0], sizeof(rtcVars.wiredCryptKey));
-
- if (gIOChosenEntry
- && (data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(gIOHibernateBootSignatureKey)))
- && (sizeof(rtcVars.booterSignature) <= data->getLength()))
- {
- bcopy(data->getBytesNoCopy(), &rtcVars.booterSignature[0], sizeof(rtcVars.booterSignature));
- }
- else if (gIOHibernateBootSignature[0])
- {
- char c;
- uint8_t value = 0;
- uint32_t in, out, digits;
- for (in = out = digits = 0;
- (c = gIOHibernateBootSignature[in]) && (in < sizeof(gIOHibernateBootSignature));
- in++)
- {
- if ((c >= 'a') && (c <= 'f')) c -= 'a' - 10;
- else if ((c >= 'A') && (c <= 'F')) c -= 'A' - 10;
- else if ((c >= '0') && (c <= '9')) c -= '0';
- else
- {
- if (c == '=') out = digits = value = 0;
- continue;
- }
- value = (value << 4) | c;
- if (digits & 1)
- {
- rtcVars.booterSignature[out++] = value;
- if (out >= sizeof(rtcVars.booterSignature)) break;
- }
- digits++;
- }
- }
- data = OSData::withBytes(&rtcVars, sizeof(rtcVars));
- if (data)
- {
- if (gIOHibernateRTCVariablesKey)
- IOService::getPMRootDomain()->setProperty(gIOHibernateRTCVariablesKey, data);
- data->release();
- }
- if (gIOChosenEntry && gIOOptionsEntry)
- {
- data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(kIOHibernateMachineSignatureKey));
- if (data) gIOHibernateCurrentHeader->machineSignature = *((UInt32 *)data->getBytesNoCopy());
- // set BootNext
- if (!gIOHibernateBoot0082Data)
- {
- OSData * fileData = 0;
- data = OSDynamicCast(OSData, gIOChosenEntry->getProperty("boot-device-path"));
- if (data && data->getLength() >= 4) fileData = OSDynamicCast(OSData, gIOChosenEntry->getProperty("boot-file-path"));
- if (data)
- {
- // AppleNVRAM_EFI_LOAD_OPTION
- struct {
- uint32_t Attributes;
- uint16_t FilePathLength;
- uint16_t Desc;
- } loadOptionHeader;
- loadOptionHeader.Attributes = 1;
- loadOptionHeader.FilePathLength = data->getLength();
- loadOptionHeader.Desc = 0;
- if (fileData)
- {
- loadOptionHeader.FilePathLength -= 4;
- loadOptionHeader.FilePathLength += fileData->getLength();
+ vars->volumeCryptKeySize = sizeof(vars->volumeCryptKey);
+ err = IOPolledFileOpen(gIOHibernateFilename,
+ (kIOPolledFileCreate | kIOPolledFileHibernate),
+ setFileSize, 0,
+ gIOHibernateCurrentHeader, sizeof(gIOHibernateCurrentHeader),
+ &vars->fileVars, &nvramData,
+ &vars->volumeCryptKey[0], &vars->volumeCryptKeySize);
+
+ if (KERN_SUCCESS != err) {
+ IOLockLock(gFSLock);
+ if (kFSOpening != gFSState) {
+ err = kIOReturnTimeout;
}
- gIOHibernateBoot0082Data = OSData::withCapacity(sizeof(loadOptionHeader) + loadOptionHeader.FilePathLength);
- if (gIOHibernateBoot0082Data)
- {
- gIOHibernateBoot0082Data->appendBytes(&loadOptionHeader, sizeof(loadOptionHeader));
- if (fileData)
- {
- gIOHibernateBoot0082Data->appendBytes(data->getBytesNoCopy(), data->getLength() - 4);
- gIOHibernateBoot0082Data->appendBytes(fileData);
- }
- else gIOHibernateBoot0082Data->appendBytes(data);
+ IOLockUnlock(gFSLock);
+ }
+
+ if (KERN_SUCCESS != err) {
+ HIBLOG("IOPolledFileOpen(%x)\n", err);
+ break;
+ }
+
+ // write extents for debug data usage in EFI
+ IOWriteExtentsToFile(vars->fileVars, kIOHibernateHeaderOpenSignature);
+
+ err = IOPolledFilePollersSetup(vars->fileVars, kIOPolledPreflightState);
+ if (KERN_SUCCESS != err) {
+ break;
+ }
+
+ clock_get_uptime(&startTime);
+ err = hibernate_setup(gIOHibernateCurrentHeader,
+ vmflush,
+ vars->page_list, vars->page_list_wired, vars->page_list_pal);
+ clock_get_uptime(&endTime);
+ SUB_ABSOLUTETIME(&endTime, &startTime);
+ absolutetime_to_nanoseconds(endTime, &nsec);
+
+ boolean_t haveSwapPin, hibFileSSD;
+ haveSwapPin = vm_swap_files_pinned();
+
+ hibFileSSD = (kIOPolledFileSSD & vars->fileVars->flags);
+
+ HIBLOG("hibernate_setup(%d) took %qd ms, swapPin(%d) ssd(%d)\n",
+ err, nsec / 1000000ULL,
+ haveSwapPin, hibFileSSD);
+ if (KERN_SUCCESS != err) {
+ break;
+ }
+
+ gIOHibernateStandbyDisabled = ((!haveSwapPin || !hibFileSSD));
+
+ dsSSD = ((0 != (kIOPolledFileSSD & vars->fileVars->flags))
+ && (kOSBooleanTrue == IOService::getPMRootDomain()->getProperty(kIOPMDeepSleepEnabledKey)));
+
+ if (dsSSD) {
+ gIOHibernateCurrentHeader->options |= kIOHibernateOptionSSD | kIOHibernateOptionColor;
+ } else {
+ gIOHibernateCurrentHeader->options |= kIOHibernateOptionProgress;
+ }
+
+
+#if defined(__i386__) || defined(__x86_64__)
+ if (vars->volumeCryptKeySize &&
+ (kOSBooleanTrue != IOService::getPMRootDomain()->getProperty(kIOPMDestroyFVKeyOnStandbyKey))) {
+ uintptr_t smcVars[2];
+ smcVars[0] = vars->volumeCryptKeySize;
+ smcVars[1] = (uintptr_t)(void *) &gIOHibernateVars.volumeCryptKey[0];
+
+ IOService::getPMRootDomain()->setProperty(kIOHibernateSMCVariablesKey, smcVars, sizeof(smcVars));
+ bzero(smcVars, sizeof(smcVars));
+ }
+#endif
+
+
+ if (encryptedswap || vars->volumeCryptKeySize) {
+ gIOHibernateMode ^= kIOHibernateModeEncrypt;
+ }
+
+ if (kIOHibernateOptionProgress & gIOHibernateCurrentHeader->options) {
+ vars->videoAllocSize = kVideoMapSize;
+ if (KERN_SUCCESS != kmem_alloc_pageable(kernel_map, &vars->videoMapping, vars->videoAllocSize, VM_KERN_MEMORY_IOKIT)) {
+ vars->videoMapping = 0;
}
- }
}
- if (!gIOHibernateBootNextData)
- {
- uint16_t bits = 0x0082;
- gIOHibernateBootNextData = OSData::withBytes(&bits, sizeof(bits));
+
+ // generate crypt keys
+ for (uint32_t i = 0; i < sizeof(vars->wiredCryptKey); i++) {
+ vars->wiredCryptKey[i] = random();
}
- if (gIOHibernateBoot0082Key && gIOHibernateBoot0082Data && gIOHibernateBootNextKey && gIOHibernateBootNextData)
+ for (uint32_t i = 0; i < sizeof(vars->cryptKey); i++) {
+ vars->cryptKey[i] = random();
+ }
+
+ // set nvram
+
+ IOSetBootImageNVRAM(nvramData);
+ nvramData->release();
+
+#if defined(__i386__) || defined(__x86_64__)
{
- gIOHibernateBootNextSave = gIOOptionsEntry->copyProperty(gIOHibernateBootNextKey);
- gIOOptionsEntry->setProperty(gIOHibernateBoot0082Key, gIOHibernateBoot0082Data);
- gIOOptionsEntry->setProperty(gIOHibernateBootNextKey, gIOHibernateBootNextData);
+ struct AppleRTCHibernateVars {
+ uint8_t signature[4];
+ uint32_t revision;
+ uint8_t booterSignature[20];
+ uint8_t wiredCryptKey[16];
+ };
+ AppleRTCHibernateVars rtcVars;
+ OSData * data;
+
+ rtcVars.signature[0] = 'A';
+ rtcVars.signature[1] = 'A';
+ rtcVars.signature[2] = 'P';
+ rtcVars.signature[3] = 'L';
+ rtcVars.revision = 1;
+ bcopy(&vars->wiredCryptKey[0], &rtcVars.wiredCryptKey[0], sizeof(rtcVars.wiredCryptKey));
+
+ if (gIOChosenEntry
+ && (data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(gIOHibernateBootSignatureKey)))
+ && (sizeof(rtcVars.booterSignature) <= data->getLength())) {
+ bcopy(data->getBytesNoCopy(), &rtcVars.booterSignature[0], sizeof(rtcVars.booterSignature));
+ } else if (gIOHibernateBootSignature[0]) {
+ char c;
+ uint8_t value = 0;
+ uint32_t in, out, digits;
+ for (in = out = digits = 0;
+ (c = gIOHibernateBootSignature[in]) && (in < sizeof(gIOHibernateBootSignature));
+ in++) {
+ if ((c >= 'a') && (c <= 'f')) {
+ c -= 'a' - 10;
+ } else if ((c >= 'A') && (c <= 'F')) {
+ c -= 'A' - 10;
+ } else if ((c >= '0') && (c <= '9')) {
+ c -= '0';
+ } else {
+ if (c == '=') {
+ out = digits = value = 0;
+ }
+ continue;
+ }
+ value = (value << 4) | c;
+ if (digits & 1) {
+ rtcVars.booterSignature[out++] = value;
+ if (out >= sizeof(rtcVars.booterSignature)) {
+ break;
+ }
+ }
+ digits++;
+ }
+ }
+#if DEBUG || DEVELOPMENT
+ if (kIOLogHibernate & gIOKitDebug) {
+ IOKitKernelLogBuffer("H> rtc:",
+ &rtcVars, sizeof(rtcVars), &kprintf);
+ }
+#endif /* DEBUG || DEVELOPMENT */
+
+ data = OSData::withBytes(&rtcVars, sizeof(rtcVars));
+ if (data) {
+ if (gIOHibernateRTCVariablesKey) {
+ IOService::getPMRootDomain()->setProperty(gIOHibernateRTCVariablesKey, data);
+ }
+ data->release();
+ }
+ if (gIOChosenEntry && gIOOptionsEntry) {
+ data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(kIOHibernateMachineSignatureKey));
+ if (data) {
+ gIOHibernateCurrentHeader->machineSignature = *((UInt32 *)data->getBytesNoCopy());
+ }
+ // set BootNext
+ if (!gIOHibernateBoot0082Data) {
+ OSData * fileData = NULL;
+ data = OSDynamicCast(OSData, gIOChosenEntry->getProperty("boot-device-path"));
+ if (data && data->getLength() >= 4) {
+ fileData = OSDynamicCast(OSData, gIOChosenEntry->getProperty("boot-file-path"));
+ }
+ if (data) {
+ // AppleNVRAM_EFI_LOAD_OPTION
+ struct {
+ uint32_t Attributes;
+ uint16_t FilePathLength;
+ uint16_t Desc;
+ } loadOptionHeader;
+ loadOptionHeader.Attributes = 1;
+ loadOptionHeader.FilePathLength = data->getLength();
+ loadOptionHeader.Desc = 0;
+ if (fileData) {
+ loadOptionHeader.FilePathLength -= 4;
+ loadOptionHeader.FilePathLength += fileData->getLength();
+ }
+ gIOHibernateBoot0082Data = OSData::withCapacity(sizeof(loadOptionHeader) + loadOptionHeader.FilePathLength);
+ if (gIOHibernateBoot0082Data) {
+ gIOHibernateBoot0082Data->appendBytes(&loadOptionHeader, sizeof(loadOptionHeader));
+ if (fileData) {
+ gIOHibernateBoot0082Data->appendBytes(data->getBytesNoCopy(), data->getLength() - 4);
+ gIOHibernateBoot0082Data->appendBytes(fileData);
+ } else {
+ gIOHibernateBoot0082Data->appendBytes(data);
+ }
+ }
+ }
+ }
+ if (!gIOHibernateBootNextData) {
+ uint16_t bits = 0x0082;
+ gIOHibernateBootNextData = OSData::withBytes(&bits, sizeof(bits));
+ }
+
+#if DEBUG || DEVELOPMENT
+ if (kIOLogHibernate & gIOKitDebug) {
+ IOKitKernelLogBuffer("H> bootnext:",
+ gIOHibernateBoot0082Data->getBytesNoCopy(), gIOHibernateBoot0082Data->getLength(), &kprintf);
+ }
+#endif /* DEBUG || DEVELOPMENT */
+ if (gIOHibernateBoot0082Key && gIOHibernateBoot0082Data && gIOHibernateBootNextKey && gIOHibernateBootNextData) {
+ gIOHibernateBootNextSave = gIOOptionsEntry->copyProperty(gIOHibernateBootNextKey);
+ gIOOptionsEntry->setProperty(gIOHibernateBoot0082Key, gIOHibernateBoot0082Data);
+ gIOOptionsEntry->setProperty(gIOHibernateBootNextKey, gIOHibernateBootNextData);
+ }
+ // BootNext
+ }
}
- // BootNext
- }
- }
#endif /* !i386 && !x86_64 */
- }
- while (false);
-
- if (swapPinned) hibernate_pin_swap(FALSE);
-
- IOLockLock(gFSLock);
- if ((kIOReturnSuccess == err) && (kFSOpening != gFSState))
- {
- HIBLOG("hibernate file close due timeout\n");
- err = kIOReturnTimeout;
- }
- if (kIOReturnSuccess == err)
- {
- gFSState = kFSOpened;
- gIOHibernateVars = *vars;
- gFileVars = *vars->fileVars;
- gFileVars.allocated = false;
- gIOHibernateVars.fileVars = &gFileVars;
- gIOHibernateCurrentHeader->signature = kIOHibernateHeaderSignature;
- gIOHibernateState = kIOHibernateStateHibernating;
- }
- else
- {
- IOPolledFileIOVars * fileVars = vars->fileVars;
- IOHibernateDone(vars);
- IOPolledFileClose(&fileVars,
+ }while (false);
+
+ if (swapPinned) {
+ hibernate_pin_swap(FALSE);
+ }
+
+ IOLockLock(gFSLock);
+ if ((kIOReturnSuccess == err) && (kFSOpening != gFSState)) {
+ HIBLOG("hibernate file close due timeout\n");
+ err = kIOReturnTimeout;
+ }
+ if (kIOReturnSuccess == err) {
+ gFSState = kFSOpened;
+ gIOHibernateVars = *vars;
+ gFileVars = *vars->fileVars;
+ gFileVars.allocated = false;
+ gIOHibernateVars.fileVars = &gFileVars;
+ gIOHibernateCurrentHeader->signature = kIOHibernateHeaderSignature;
+ gIOHibernateState = kIOHibernateStateHibernating;
+
+#if DEBUG || DEVELOPMENT
+ if (kIOLogHibernate & gIOKitDebug) {
+ OSData * data = OSDynamicCast(OSData, IOService::getPMRootDomain()->getProperty(kIOHibernateSMCVariablesKey));
+ if (data) {
+ uintptr_t * smcVars = (typeof(smcVars))data->getBytesNoCopy();
+ IOKitKernelLogBuffer("H> smc:",
+ (const void *)smcVars[1], smcVars[0], &kprintf);
+ }
+ }
+#endif /* DEBUG || DEVELOPMENT */
+ } else {
+ IOPolledFileIOVars * fileVars = vars->fileVars;
+ IOHibernateDone(vars);
+ IOPolledFileClose(&fileVars,
#if DISABLE_TRIM
- 0, NULL, 0, 0, 0);
+ 0, NULL, 0, 0, 0);
#else
- 0, NULL, 0, sizeof(IOHibernateImageHeader), setFileSize);
+ 0, NULL, 0, sizeof(IOHibernateImageHeader), setFileSize);
#endif
- gFSState = kFSIdle;
- }
- IOLockUnlock(gFSLock);
+ gFSState = kFSIdle;
+ }
+ IOLockUnlock(gFSLock);
- if (vars->fileVars) IODelete(vars->fileVars, IOPolledFileIOVars, 1);
- IODelete(vars, IOHibernateVars, 1);
+ if (vars->fileVars) {
+ IODelete(vars->fileVars, IOPolledFileIOVars, 1);
+ }
+ IODelete(vars, IOHibernateVars, 1);
- return (err);
+ return err;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static void
IOSetBootImageNVRAM(OSData * data)
{
- IORegistryEntry * regEntry;
-
- if (!gIOOptionsEntry)
- {
- regEntry = IORegistryEntry::fromPath("/options", gIODTPlane);
- gIOOptionsEntry = OSDynamicCast(IODTNVRAM, regEntry);
- if (regEntry && !gIOOptionsEntry)
- regEntry->release();
- }
- if (gIOOptionsEntry && gIOHibernateBootImageKey)
- {
- if (data) gIOOptionsEntry->setProperty(gIOHibernateBootImageKey, data);
- else
- {
- gIOOptionsEntry->removeProperty(gIOHibernateBootImageKey);
- gIOOptionsEntry->sync();
- }
- }
+ IORegistryEntry * regEntry;
+
+ if (!gIOOptionsEntry) {
+ regEntry = IORegistryEntry::fromPath("/options", gIODTPlane);
+ gIOOptionsEntry = OSDynamicCast(IODTNVRAM, regEntry);
+ if (regEntry && !gIOOptionsEntry) {
+ regEntry->release();
+ }
+ }
+ if (gIOOptionsEntry && gIOHibernateBootImageKey) {
+ if (data) {
+ gIOOptionsEntry->setProperty(gIOHibernateBootImageKey, data);
+#if DEBUG || DEVELOPMENT
+ if (kIOLogHibernate & gIOKitDebug) {
+ IOKitKernelLogBuffer("H> boot-image:",
+ data->getBytesNoCopy(), data->getLength(), &kprintf);
+ }
+#endif /* DEBUG || DEVELOPMENT */
+ } else {
+ gIOOptionsEntry->removeProperty(gIOHibernateBootImageKey);
+ gIOOptionsEntry->sync();
+ }
+ }
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static IOReturn
IOWriteExtentsToFile(IOPolledFileIOVars * vars, uint32_t signature)
{
- IOHibernateImageHeader hdr;
- IOItemCount count;
- IOReturn err = kIOReturnSuccess;
- int rc;
- IOPolledFileExtent * fileExtents;
-
- fileExtents = (typeof(fileExtents)) vars->fileExtents->getBytesNoCopy();
-
- memset(&hdr, 0, sizeof(IOHibernateImageHeader));
- count = vars->fileExtents->getLength();
- if (count > sizeof(hdr.fileExtentMap))
- {
- hdr.fileExtentMapSize = count;
- count = sizeof(hdr.fileExtentMap);
- }
- else
- hdr.fileExtentMapSize = sizeof(hdr.fileExtentMap);
-
- bcopy(fileExtents, &hdr.fileExtentMap[0], count);
-
- // copy file block extent list if larger than header
- if (hdr.fileExtentMapSize > sizeof(hdr.fileExtentMap))
- {
- count = hdr.fileExtentMapSize - sizeof(hdr.fileExtentMap);
- rc = kern_write_file(vars->fileRef, vars->blockSize,
- (caddr_t)(((uint8_t *)fileExtents) + sizeof(hdr.fileExtentMap)),
- count, IO_SKIP_ENCRYPTION);
- if (rc != 0) {
- HIBLOG("kern_write_file returned %d\n", rc);
- err = kIOReturnIOError;
- goto exit;
- }
- }
- hdr.signature = signature;
- hdr.deviceBlockSize = vars->blockSize;
-
- rc = kern_write_file(vars->fileRef, 0, (char *)&hdr, sizeof(hdr), IO_SKIP_ENCRYPTION);
- if (rc != 0) {
- HIBLOG("kern_write_file returned %d\n", rc);
- err = kIOReturnIOError;
- goto exit;
- }
-
-exit:
- return err;
-}
-
-extern "C" boolean_t root_is_CF_drive;
+ IOHibernateImageHeader hdr;
+ IOItemCount count;
+ IOReturn err = kIOReturnSuccess;
+ int rc;
+ IOPolledFileExtent * fileExtents;
+
+ fileExtents = (typeof(fileExtents))vars->fileExtents->getBytesNoCopy();
+
+ memset(&hdr, 0, sizeof(IOHibernateImageHeader));
+ count = vars->fileExtents->getLength();
+ if (count > sizeof(hdr.fileExtentMap)) {
+ hdr.fileExtentMapSize = count;
+ count = sizeof(hdr.fileExtentMap);
+ } else {
+ hdr.fileExtentMapSize = sizeof(hdr.fileExtentMap);
+ }
-void
-IOOpenDebugDataFile(const char *fname, uint64_t size)
-{
- IOReturn err;
- OSData * imagePath = NULL;
- uint64_t padding;
-
- if (!gDebugImageLock) {
- gDebugImageLock = IOLockAlloc();
- }
-
- if (root_is_CF_drive) return;
-
- // Try to get a lock, but don't block for getting lock
- if (!IOLockTryLock(gDebugImageLock)) {
- HIBLOG("IOOpenDebugDataFile: Failed to get lock\n");
- return;
- }
-
- if (gDebugImageFileVars || !fname || !size) {
- HIBLOG("IOOpenDebugDataFile: conditions failed\n");
- goto exit;
- }
-
- padding = (PAGE_SIZE*2); // allocate couple more pages for header and fileextents
- err = IOPolledFileOpen(fname, size+padding, 32ULL*1024*1024*1024,
- NULL, 0,
- &gDebugImageFileVars, &imagePath, NULL, 0);
-
- if ((kIOReturnSuccess == err) && imagePath)
- {
- if ((gDebugImageFileVars->fileSize < (size+padding)) ||
- (gDebugImageFileVars->fileExtents->getLength() > PAGE_SIZE)) {
- // Can't use the file
- IOPolledFileClose(&gDebugImageFileVars, 0, 0, 0, 0, 0);
- HIBLOG("IOOpenDebugDataFile: too many file extents\n");
- goto exit;
- }
-
- // write extents for debug data usage in EFI
- IOWriteExtentsToFile(gDebugImageFileVars, kIOHibernateHeaderOpenSignature);
- IOSetBootImageNVRAM(imagePath);
- }
+ bcopy(fileExtents, &hdr.fileExtentMap[0], count);
+
+ // copy file block extent list if larger than header
+ if (hdr.fileExtentMapSize > sizeof(hdr.fileExtentMap)) {
+ count = hdr.fileExtentMapSize - sizeof(hdr.fileExtentMap);
+ rc = kern_write_file(vars->fileRef, vars->blockSize,
+ (caddr_t)(((uint8_t *)fileExtents) + sizeof(hdr.fileExtentMap)),
+ count, IO_SKIP_ENCRYPTION);
+ if (rc != 0) {
+ HIBLOG("kern_write_file returned %d\n", rc);
+ err = kIOReturnIOError;
+ goto exit;
+ }
+ }
+ hdr.signature = signature;
+ hdr.deviceBlockSize = vars->blockSize;
+
+ rc = kern_write_file(vars->fileRef, 0, (char *)&hdr, sizeof(hdr), IO_SKIP_ENCRYPTION);
+ if (rc != 0) {
+ HIBLOG("kern_write_file returned %d\n", rc);
+ err = kIOReturnIOError;
+ goto exit;
+ }
exit:
- IOLockUnlock(gDebugImageLock);
-
- if (imagePath) imagePath->release();
- return;
-}
-
-void
-IOCloseDebugDataFile()
-{
- IOSetBootImageNVRAM(0);
-
- if (gDebugImageLock) {
- IOLockLock(gDebugImageLock);
- if (gDebugImageFileVars != 0) {
- IOPolledFileClose(&gDebugImageFileVars, 0, 0, 0, 0, 0);
- }
- IOLockUnlock(gDebugImageLock);
- }
-
-
+ return err;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static void
ProgressInit(hibernate_graphics_t * display, uint8_t * screen, uint8_t * saveunder, uint32_t savelen)
{
- uint32_t rowBytes, pixelShift;
- uint32_t x, y;
- int32_t blob;
- uint32_t alpha, in, color, result;
- uint8_t * out;
- uint32_t saveindex[kIOHibernateProgressCount] = { 0 };
-
- rowBytes = display->rowBytes;
- pixelShift = display->depth >> 4;
- if (pixelShift < 1) return;
-
- screen += ((display->width
- - kIOHibernateProgressCount * (kIOHibernateProgressWidth + kIOHibernateProgressSpacing)) << (pixelShift - 1))
- + (display->height - kIOHibernateProgressOriginY - kIOHibernateProgressHeight) * rowBytes;
-
- for (y = 0; y < kIOHibernateProgressHeight; y++)
- {
- out = screen + y * rowBytes;
- for (blob = 0; blob < kIOHibernateProgressCount; blob++)
- {
- color = blob ? kIOHibernateProgressDarkGray : kIOHibernateProgressMidGray;
- for (x = 0; x < kIOHibernateProgressWidth; x++)
- {
- alpha = gIOHibernateProgressAlpha[y][x];
- result = color;
- if (alpha)
- {
- if (0xff != alpha)
- {
- if (1 == pixelShift)
- {
- in = *((uint16_t *)out) & 0x1f; // 16
- in = (in << 3) | (in >> 2);
- }
- else
- in = *((uint32_t *)out) & 0xff; // 32
- saveunder[blob * kIOHibernateProgressSaveUnderSize + saveindex[blob]++] = in;
- result = ((255 - alpha) * in + alpha * result + 0xff) >> 8;
- }
- if (1 == pixelShift)
- {
- result >>= 3;
- *((uint16_t *)out) = (result << 10) | (result << 5) | result; // 16
- }
- else
- *((uint32_t *)out) = (result << 16) | (result << 8) | result; // 32
- }
- out += (1 << pixelShift);
- }
- out += (kIOHibernateProgressSpacing << pixelShift);
- }
- }
+ uint32_t rowBytes, pixelShift;
+ uint32_t x, y;
+ int32_t blob;
+ uint32_t alpha, in, color, result;
+ uint8_t * out;
+ uint32_t saveindex[kIOHibernateProgressCount] = { 0 };
+
+ rowBytes = display->rowBytes;
+ pixelShift = display->depth >> 4;
+ if (pixelShift < 1) {
+ return;
+ }
+
+ screen += ((display->width
+ - kIOHibernateProgressCount * (kIOHibernateProgressWidth + kIOHibernateProgressSpacing)) << (pixelShift - 1))
+ + (display->height - kIOHibernateProgressOriginY - kIOHibernateProgressHeight) * rowBytes;
+
+ for (y = 0; y < kIOHibernateProgressHeight; y++) {
+ out = screen + y * rowBytes;
+ for (blob = 0; blob < kIOHibernateProgressCount; blob++) {
+ color = blob ? kIOHibernateProgressDarkGray : kIOHibernateProgressMidGray;
+ for (x = 0; x < kIOHibernateProgressWidth; x++) {
+ alpha = gIOHibernateProgressAlpha[y][x];
+ result = color;
+ if (alpha) {
+ if (0xff != alpha) {
+ if (1 == pixelShift) {
+ in = *((uint16_t *)out) & 0x1f; // 16
+ in = (in << 3) | (in >> 2);
+ } else {
+ in = *((uint32_t *)out) & 0xff; // 32
+ }
+ saveunder[blob * kIOHibernateProgressSaveUnderSize + saveindex[blob]++] = in;
+ result = ((255 - alpha) * in + alpha * result + 0xff) >> 8;
+ }
+ if (1 == pixelShift) {
+ result >>= 3;
+ *((uint16_t *)out) = (result << 10) | (result << 5) | result; // 16
+ } else {
+ *((uint32_t *)out) = (result << 16) | (result << 8) | result; // 32
+ }
+ }
+ out += (1 << pixelShift);
+ }
+ out += (kIOHibernateProgressSpacing << pixelShift);
+ }
+ }
}
static void
ProgressUpdate(hibernate_graphics_t * display, uint8_t * screen, int32_t firstBlob, int32_t select)
{
- uint32_t rowBytes, pixelShift;
- uint32_t x, y;
- int32_t blob, lastBlob;
- uint32_t alpha, in, color, result;
- uint8_t * out;
- uint32_t saveindex[kIOHibernateProgressCount] = { 0 };
-
- pixelShift = display->depth >> 4;
- if (pixelShift < 1)
- return;
-
- rowBytes = display->rowBytes;
-
- screen += ((display->width
- - kIOHibernateProgressCount * (kIOHibernateProgressWidth + kIOHibernateProgressSpacing)) << (pixelShift - 1))
- + (display->height - kIOHibernateProgressOriginY - kIOHibernateProgressHeight) * rowBytes;
-
- lastBlob = (select < kIOHibernateProgressCount) ? select : (kIOHibernateProgressCount - 1);
-
- screen += (firstBlob * (kIOHibernateProgressWidth + kIOHibernateProgressSpacing)) << pixelShift;
-
- for (y = 0; y < kIOHibernateProgressHeight; y++)
- {
- out = screen + y * rowBytes;
- for (blob = firstBlob; blob <= lastBlob; blob++)
- {
- color = (blob < select) ? kIOHibernateProgressLightGray : kIOHibernateProgressMidGray;
- for (x = 0; x < kIOHibernateProgressWidth; x++)
- {
- alpha = gIOHibernateProgressAlpha[y][x];
- result = color;
- if (alpha)
- {
- if (0xff != alpha)
- {
- in = display->progressSaveUnder[blob][saveindex[blob]++];
- result = ((255 - alpha) * in + alpha * result + 0xff) / 255;
- }
- if (1 == pixelShift)
- {
- result >>= 3;
- *((uint16_t *)out) = (result << 10) | (result << 5) | result; // 16
- }
- else
- *((uint32_t *)out) = (result << 16) | (result << 8) | result; // 32
- }
- out += (1 << pixelShift);
- }
- out += (kIOHibernateProgressSpacing << pixelShift);
- }
- }
+ uint32_t rowBytes, pixelShift;
+ uint32_t x, y;
+ int32_t blob, lastBlob;
+ uint32_t alpha, in, color, result;
+ uint8_t * out;
+ uint32_t saveindex[kIOHibernateProgressCount] = { 0 };
+
+ pixelShift = display->depth >> 4;
+ if (pixelShift < 1) {
+ return;
+ }
+
+ rowBytes = display->rowBytes;
+
+ screen += ((display->width
+ - kIOHibernateProgressCount * (kIOHibernateProgressWidth + kIOHibernateProgressSpacing)) << (pixelShift - 1))
+ + (display->height - kIOHibernateProgressOriginY - kIOHibernateProgressHeight) * rowBytes;
+
+ lastBlob = (select < kIOHibernateProgressCount) ? select : (kIOHibernateProgressCount - 1);
+
+ screen += (firstBlob * (kIOHibernateProgressWidth + kIOHibernateProgressSpacing)) << pixelShift;
+
+ for (y = 0; y < kIOHibernateProgressHeight; y++) {
+ out = screen + y * rowBytes;
+ for (blob = firstBlob; blob <= lastBlob; blob++) {
+ color = (blob < select) ? kIOHibernateProgressLightGray : kIOHibernateProgressMidGray;
+ for (x = 0; x < kIOHibernateProgressWidth; x++) {
+ alpha = gIOHibernateProgressAlpha[y][x];
+ result = color;
+ if (alpha) {
+ if (0xff != alpha) {
+ in = display->progressSaveUnder[blob][saveindex[blob]++];
+ result = ((255 - alpha) * in + alpha * result + 0xff) / 255;
+ }
+ if (1 == pixelShift) {
+ result >>= 3;
+ *((uint16_t *)out) = (result << 10) | (result << 5) | result; // 16
+ } else {
+ *((uint32_t *)out) = (result << 16) | (result << 8) | result; // 32
+ }
+ }
+ out += (1 << pixelShift);
+ }
+ out += (kIOHibernateProgressSpacing << pixelShift);
+ }
+ }
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
IOReturn
IOHibernateIOKitSleep(void)
{
- IOReturn ret = kIOReturnSuccess;
- IOLockLock(gFSLock);
- if (kFSOpening == gFSState)
- {
- gFSState = kFSTimedOut;
- HIBLOG("hibernate file open timed out\n");
- ret = kIOReturnTimeout;
- }
- IOLockUnlock(gFSLock);
- return (ret);
+ IOReturn ret = kIOReturnSuccess;
+ IOLockLock(gFSLock);
+ if (kFSOpening == gFSState) {
+ gFSState = kFSTimedOut;
+ HIBLOG("hibernate file open timed out\n");
+ ret = kIOReturnTimeout;
+ }
+ IOLockUnlock(gFSLock);
+ return ret;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
IOReturn
IOHibernateSystemHasSlept(void)
{
- IOReturn ret = kIOReturnSuccess;
- IOHibernateVars * vars = &gIOHibernateVars;
- OSObject * obj = 0;
- OSData * data;
-
- IOLockLock(gFSLock);
- if ((kFSOpened != gFSState) && gIOHibernateMode)
- {
- ret = kIOReturnTimeout;
- }
- IOLockUnlock(gFSLock);
- if (kIOReturnSuccess != ret) return (ret);
-
- if (gIOHibernateMode) obj = IOService::getPMRootDomain()->copyProperty(kIOHibernatePreviewBufferKey);
- vars->previewBuffer = OSDynamicCast(IOMemoryDescriptor, obj);
- if (obj && !vars->previewBuffer)
- obj->release();
-
- vars->consoleMapping = NULL;
- if (vars->previewBuffer && (kIOReturnSuccess != vars->previewBuffer->prepare()))
- {
- vars->previewBuffer->release();
- vars->previewBuffer = 0;
- }
-
- if ((kIOHibernateOptionProgress & gIOHibernateCurrentHeader->options)
- && vars->previewBuffer
- && (data = OSDynamicCast(OSData,
- IOService::getPMRootDomain()->getProperty(kIOHibernatePreviewActiveKey))))
- {
- UInt32 flags = *((UInt32 *)data->getBytesNoCopy());
- HIBPRINT("kIOHibernatePreviewActiveKey %08lx\n", (long)flags);
-
- IOService::getPMRootDomain()->removeProperty(kIOHibernatePreviewActiveKey);
-
- if (kIOHibernatePreviewUpdates & flags)
- {
- PE_Video consoleInfo;
- hibernate_graphics_t * graphicsInfo = gIOHibernateGraphicsInfo;
-
- IOService::getPlatform()->getConsoleInfo(&consoleInfo);
-
- graphicsInfo->width = consoleInfo.v_width;
- graphicsInfo->height = consoleInfo.v_height;
- graphicsInfo->rowBytes = consoleInfo.v_rowBytes;
- graphicsInfo->depth = consoleInfo.v_depth;
- vars->consoleMapping = (uint8_t *) consoleInfo.v_baseAddr;
-
- HIBPRINT("video %p %d %d %d\n",
- vars->consoleMapping, graphicsInfo->depth,
- graphicsInfo->width, graphicsInfo->height);
- if (vars->consoleMapping)
- ProgressInit(graphicsInfo, vars->consoleMapping,
- &graphicsInfo->progressSaveUnder[0][0], sizeof(graphicsInfo->progressSaveUnder));
- }
- }
-
- if (gIOOptionsEntry)
- gIOOptionsEntry->sync();
-
- return (ret);
+ IOReturn ret = kIOReturnSuccess;
+ IOHibernateVars * vars = &gIOHibernateVars;
+ OSObject * obj = NULL;
+ OSData * data;
+
+ IOLockLock(gFSLock);
+ if ((kFSOpened != gFSState) && gIOHibernateMode) {
+ ret = kIOReturnTimeout;
+ }
+ IOLockUnlock(gFSLock);
+ if (kIOReturnSuccess != ret) {
+ return ret;
+ }
+
+ if (gIOHibernateMode) {
+ obj = IOService::getPMRootDomain()->copyProperty(kIOHibernatePreviewBufferKey);
+ }
+ vars->previewBuffer = OSDynamicCast(IOMemoryDescriptor, obj);
+ if (obj && !vars->previewBuffer) {
+ obj->release();
+ }
+
+ vars->consoleMapping = NULL;
+ if (vars->previewBuffer && (kIOReturnSuccess != vars->previewBuffer->prepare())) {
+ vars->previewBuffer->release();
+ vars->previewBuffer = NULL;
+ }
+
+ if ((kIOHibernateOptionProgress & gIOHibernateCurrentHeader->options)
+ && vars->previewBuffer
+ && (data = OSDynamicCast(OSData,
+ IOService::getPMRootDomain()->getProperty(kIOHibernatePreviewActiveKey)))) {
+ UInt32 flags = *((UInt32 *)data->getBytesNoCopy());
+ HIBPRINT("kIOHibernatePreviewActiveKey %08lx\n", (long)flags);
+
+ IOService::getPMRootDomain()->removeProperty(kIOHibernatePreviewActiveKey);
+
+ if (kIOHibernatePreviewUpdates & flags) {
+ PE_Video consoleInfo;
+ hibernate_graphics_t * graphicsInfo = gIOHibernateGraphicsInfo;
+
+ IOService::getPlatform()->getConsoleInfo(&consoleInfo);
+
+ graphicsInfo->width = consoleInfo.v_width;
+ graphicsInfo->height = consoleInfo.v_height;
+ graphicsInfo->rowBytes = consoleInfo.v_rowBytes;
+ graphicsInfo->depth = consoleInfo.v_depth;
+ vars->consoleMapping = (uint8_t *) consoleInfo.v_baseAddr;
+
+ HIBPRINT("video %p %d %d %d\n",
+ vars->consoleMapping, graphicsInfo->depth,
+ graphicsInfo->width, graphicsInfo->height);
+ if (vars->consoleMapping) {
+ ProgressInit(graphicsInfo, vars->consoleMapping,
+ &graphicsInfo->progressSaveUnder[0][0], sizeof(graphicsInfo->progressSaveUnder));
+ }
+ }
+ }
+
+ if (gIOOptionsEntry) {
+ gIOOptionsEntry->sync();
+ }
+
+ return ret;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static DeviceTreeNode *
MergeDeviceTree(DeviceTreeNode * entry, IORegistryEntry * regEntry)
{
- DeviceTreeNodeProperty * prop;
- DeviceTreeNode * child;
- IORegistryEntry * childRegEntry;
- const char * nameProp;
- unsigned int propLen, idx;
-
- prop = (DeviceTreeNodeProperty *) (entry + 1);
- for (idx = 0; idx < entry->nProperties; idx++)
- {
- if (regEntry && (0 != strcmp("name", prop->name)))
- {
- regEntry->setProperty((const char *) prop->name, (void *) (prop + 1), prop->length);
+ DeviceTreeNodeProperty * prop;
+ DeviceTreeNode * child;
+ IORegistryEntry * childRegEntry;
+ const char * nameProp;
+ unsigned int propLen, idx;
+
+ prop = (DeviceTreeNodeProperty *) (entry + 1);
+ for (idx = 0; idx < entry->nProperties; idx++) {
+ if (regEntry && (0 != strcmp("name", prop->name))) {
+ regEntry->setProperty((const char *) prop->name, (void *) (prop + 1), prop->length);
// HIBPRINT("%s: %s, %d\n", regEntry->getName(), prop->name, prop->length);
+ }
+ prop = (DeviceTreeNodeProperty *) (((uintptr_t)(prop + 1)) + ((prop->length + 3) & ~3));
}
- prop = (DeviceTreeNodeProperty *) (((uintptr_t)(prop + 1)) + ((prop->length + 3) & ~3));
- }
- child = (DeviceTreeNode *) prop;
- for (idx = 0; idx < entry->nChildren; idx++)
- {
- if (kSuccess != DTGetProperty(child, "name", (void **) &nameProp, &propLen))
- panic("no name");
- childRegEntry = regEntry ? regEntry->childFromPath(nameProp, gIODTPlane) : NULL;
+ child = (DeviceTreeNode *) prop;
+ for (idx = 0; idx < entry->nChildren; idx++) {
+ if (kSuccess != DTGetProperty(child, "name", (void **) &nameProp, &propLen)) {
+ panic("no name");
+ }
+ childRegEntry = regEntry ? regEntry->childFromPath(nameProp, gIODTPlane) : NULL;
// HIBPRINT("%s == %p\n", nameProp, childRegEntry);
- child = MergeDeviceTree(child, childRegEntry);
- }
- return (child);
+ child = MergeDeviceTree(child, childRegEntry);
+ }
+ return child;
}
IOReturn
IOHibernateSystemWake(void)
{
- if (kFSOpened == gFSState)
- {
- IOPolledFilePollersClose(gIOHibernateVars.fileVars, kIOPolledPostflightState);
- IOHibernateDone(&gIOHibernateVars);
- }
- else
- {
- IOService::getPMRootDomain()->removeProperty(kIOHibernateOptionsKey);
- IOService::getPMRootDomain()->removeProperty(kIOHibernateGfxStatusKey);
- }
- return (kIOReturnSuccess);
+ if (kFSOpened == gFSState) {
+ IOPolledFilePollersClose(gIOHibernateVars.fileVars, kIOPolledPostflightState);
+ IOHibernateDone(&gIOHibernateVars);
+ } else {
+ IOService::getPMRootDomain()->removeProperty(kIOHibernateOptionsKey);
+ IOService::getPMRootDomain()->removeProperty(kIOHibernateGfxStatusKey);
+ }
+ return kIOReturnSuccess;
}
static IOReturn
IOHibernateDone(IOHibernateVars * vars)
{
- IOReturn err;
- OSData * data;
-
- hibernate_teardown(vars->page_list, vars->page_list_wired, vars->page_list_pal);
-
- if (vars->videoMapping)
- {
- if (vars->videoMapSize)
- // remove mappings
- IOUnmapPages(kernel_map, vars->videoMapping, vars->videoMapSize);
- if (vars->videoAllocSize)
- // dealloc range
- kmem_free(kernel_map, trunc_page(vars->videoMapping), vars->videoAllocSize);
- }
-
- if (vars->previewBuffer)
- {
- vars->previewBuffer->release();
- vars->previewBuffer = 0;
- }
-
- if (kIOHibernateStateWakingFromHibernate == gIOHibernateState)
- {
- IOService::getPMRootDomain()->setProperty(kIOHibernateOptionsKey,
- gIOHibernateCurrentHeader->options, 32);
- }
- else
- {
- IOService::getPMRootDomain()->removeProperty(kIOHibernateOptionsKey);
- }
-
- if ((kIOHibernateStateWakingFromHibernate == gIOHibernateState)
- && (kIOHibernateGfxStatusUnknown != gIOHibernateGraphicsInfo->gfxStatus))
- {
- IOService::getPMRootDomain()->setProperty(kIOHibernateGfxStatusKey,
- &gIOHibernateGraphicsInfo->gfxStatus,
- sizeof(gIOHibernateGraphicsInfo->gfxStatus));
- }
- else
- {
- IOService::getPMRootDomain()->removeProperty(kIOHibernateGfxStatusKey);
- }
-
- // invalidate nvram properties - (gIOOptionsEntry != 0) => nvram was touched
+ IOReturn err;
+ OSData * data;
+
+ hibernate_teardown(vars->page_list, vars->page_list_wired, vars->page_list_pal);
+
+ if (vars->videoMapping) {
+ if (vars->videoMapSize) {
+ // remove mappings
+ IOUnmapPages(kernel_map, vars->videoMapping, vars->videoMapSize);
+ }
+ if (vars->videoAllocSize) {
+ // dealloc range
+ kmem_free(kernel_map, trunc_page(vars->videoMapping), vars->videoAllocSize);
+ }
+ }
+
+ if (vars->previewBuffer) {
+ vars->previewBuffer->release();
+ vars->previewBuffer = NULL;
+ }
+
+ if (kIOHibernateStateWakingFromHibernate == gIOHibernateState) {
+ IOService::getPMRootDomain()->setProperty(kIOHibernateOptionsKey,
+ gIOHibernateCurrentHeader->options, 32);
+ } else {
+ IOService::getPMRootDomain()->removeProperty(kIOHibernateOptionsKey);
+ }
+
+ if ((kIOHibernateStateWakingFromHibernate == gIOHibernateState)
+ && (kIOHibernateGfxStatusUnknown != gIOHibernateGraphicsInfo->gfxStatus)) {
+ IOService::getPMRootDomain()->setProperty(kIOHibernateGfxStatusKey,
+ &gIOHibernateGraphicsInfo->gfxStatus,
+ sizeof(gIOHibernateGraphicsInfo->gfxStatus));
+ } else {
+ IOService::getPMRootDomain()->removeProperty(kIOHibernateGfxStatusKey);
+ }
+
+ // invalidate nvram properties - (gIOOptionsEntry != 0) => nvram was touched
#if defined(__i386__) || defined(__x86_64__)
IOService::getPMRootDomain()->removeProperty(gIOHibernateRTCVariablesKey);
* is not backed by coin cell. Remove Hibernate data from NVRAM.
*/
if (gIOOptionsEntry) {
-
- if (gIOHibernateRTCVariablesKey) {
- if (gIOOptionsEntry->getProperty(gIOHibernateRTCVariablesKey)) {
- gIOOptionsEntry->removeProperty(gIOHibernateRTCVariablesKey);
+ if (gIOHibernateRTCVariablesKey) {
+ if (gIOOptionsEntry->getProperty(gIOHibernateRTCVariablesKey)) {
+ gIOOptionsEntry->removeProperty(gIOHibernateRTCVariablesKey);
+ }
}
- }
- if (gIOHibernateBootNextKey)
- {
- if (gIOHibernateBootNextSave)
- {
- gIOOptionsEntry->setProperty(gIOHibernateBootNextKey, gIOHibernateBootNextSave);
- gIOHibernateBootNextSave->release();
- gIOHibernateBootNextSave = NULL;
+ if (gIOHibernateBootNextKey) {
+ if (gIOHibernateBootNextSave) {
+ gIOOptionsEntry->setProperty(gIOHibernateBootNextKey, gIOHibernateBootNextSave);
+ gIOHibernateBootNextSave->release();
+ gIOHibernateBootNextSave = NULL;
+ } else {
+ gIOOptionsEntry->removeProperty(gIOHibernateBootNextKey);
+ }
+ }
+ if (kIOHibernateStateWakingFromHibernate != gIOHibernateState) {
+ gIOOptionsEntry->sync();
}
- else
- gIOOptionsEntry->removeProperty(gIOHibernateBootNextKey);
- }
- if (kIOHibernateStateWakingFromHibernate != gIOHibernateState) gIOOptionsEntry->sync();
}
#endif
- if (vars->srcBuffer) vars->srcBuffer->release();
- bzero(&gIOHibernateHandoffPages[0], gIOHibernateHandoffPageCount * sizeof(gIOHibernateHandoffPages[0]));
- if (vars->handoffBuffer)
- {
- if (kIOHibernateStateWakingFromHibernate == gIOHibernateState)
- {
- IOHibernateHandoff * handoff;
- bool done = false;
- for (handoff = (IOHibernateHandoff *) vars->handoffBuffer->getBytesNoCopy();
- !done;
- handoff = (IOHibernateHandoff *) &handoff->data[handoff->bytecount])
- {
- HIBPRINT("handoff %p, %x, %x\n", handoff, handoff->type, handoff->bytecount);
- uint8_t * data = &handoff->data[0];
- switch (handoff->type)
- {
- case kIOHibernateHandoffTypeEnd:
- done = true;
- break;
-
- case kIOHibernateHandoffTypeDeviceTree:
- MergeDeviceTree((DeviceTreeNode *) data, IOService::getServiceRoot());
- break;
-
- case kIOHibernateHandoffTypeKeyStore:
+ if (vars->srcBuffer) {
+ vars->srcBuffer->release();
+ }
+ bzero(&gIOHibernateHandoffPages[0], gIOHibernateHandoffPageCount * sizeof(gIOHibernateHandoffPages[0]));
+ if (vars->handoffBuffer) {
+ if (kIOHibernateStateWakingFromHibernate == gIOHibernateState) {
+ IOHibernateHandoff * handoff;
+ bool done = false;
+ for (handoff = (IOHibernateHandoff *) vars->handoffBuffer->getBytesNoCopy();
+ !done;
+ handoff = (IOHibernateHandoff *) &handoff->data[handoff->bytecount]) {
+ HIBPRINT("handoff %p, %x, %x\n", handoff, handoff->type, handoff->bytecount);
+ uint8_t * data = &handoff->data[0];
+ switch (handoff->type) {
+ case kIOHibernateHandoffTypeEnd:
+ done = true;
+ break;
+
+ case kIOHibernateHandoffTypeDeviceTree:
+ MergeDeviceTree((DeviceTreeNode *) data, IOService::getServiceRoot());
+ break;
+
+ case kIOHibernateHandoffTypeKeyStore:
#if defined(__i386__) || defined(__x86_64__)
- {
- IOBufferMemoryDescriptor *
- md = IOBufferMemoryDescriptor::withBytes(data, handoff->bytecount, kIODirectionOutIn);
- if (md)
- {
- IOSetKeyStoreData(md);
- }
- }
+ {
+ IOBufferMemoryDescriptor *
+ md = IOBufferMemoryDescriptor::withBytes(data, handoff->bytecount, kIODirectionOutIn);
+ if (md) {
+ IOSetKeyStoreData(md);
+ }
+ }
#endif
- break;
+ break;
- default:
- done = (kIOHibernateHandoffType != (handoff->type & 0xFFFF0000));
- break;
- }
- }
+ default:
+ done = (kIOHibernateHandoffType != (handoff->type & 0xFFFF0000));
+ break;
+ }
+ }
#if defined(__i386__) || defined(__x86_64__)
- if (vars->volumeCryptKeySize)
- {
- IOBufferMemoryDescriptor *
- bmd = IOBufferMemoryDescriptor::withBytes(&vars->volumeCryptKey[0],
- vars->volumeCryptKeySize, kIODirectionOutIn);
- if (!bmd) panic("IOBufferMemoryDescriptor");
- IOSetAPFSKeyStoreData(bmd);
- bzero(&vars->volumeCryptKey[0], sizeof(vars->volumeCryptKey));
- }
+ if (vars->volumeCryptKeySize) {
+ IOBufferMemoryDescriptor *
+ bmd = IOBufferMemoryDescriptor::withBytes(&vars->volumeCryptKey[0],
+ vars->volumeCryptKeySize, kIODirectionOutIn);
+ if (!bmd) {
+ panic("IOBufferMemoryDescriptor");
+ }
+ IOSetAPFSKeyStoreData(bmd);
+ bzero(&vars->volumeCryptKey[0], sizeof(vars->volumeCryptKey));
+ }
#endif
-
+ }
+ vars->handoffBuffer->release();
}
- vars->handoffBuffer->release();
- }
- if (gIOChosenEntry
- && (data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(gIOBridgeBootSessionUUIDKey)))
- && (sizeof(gIOHibernateBridgeBootSessionUUIDString) <= data->getLength()))
- {
- bcopy(data->getBytesNoCopy(), &gIOHibernateBridgeBootSessionUUIDString[0],
- sizeof(gIOHibernateBridgeBootSessionUUIDString));
- }
+ if (gIOChosenEntry
+ && (data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(gIOBridgeBootSessionUUIDKey)))
+ && (sizeof(gIOHibernateBridgeBootSessionUUIDString) <= data->getLength())) {
+ bcopy(data->getBytesNoCopy(), &gIOHibernateBridgeBootSessionUUIDString[0],
+ sizeof(gIOHibernateBridgeBootSessionUUIDString));
+ }
- if (vars->hwEncrypt)
- {
- err = IOPolledFilePollersSetEncryptionKey(vars->fileVars, NULL, 0);
- HIBLOG("IOPolledFilePollersSetEncryptionKey(0,%x)\n", err);
- }
+ if (vars->hwEncrypt) {
+ err = IOPolledFilePollersSetEncryptionKey(vars->fileVars, NULL, 0);
+ HIBLOG("IOPolledFilePollersSetEncryptionKey(0,%x)\n", err);
+ }
- bzero(vars, sizeof(*vars));
+ bzero(vars, sizeof(*vars));
// gIOHibernateState = kIOHibernateStateInactive; // leave it for post wake code to see
- return (kIOReturnSuccess);
+ return kIOReturnSuccess;
}
static void
IOHibernateSystemPostWakeTrim(void * p1, void * p2)
{
- // invalidate & close the image file
- if (p1) IOLockLock(gFSLock);
- if (kFSTrimDelay == gFSState)
- {
- IOPolledFileIOVars * vars = &gFileVars;
- IOPolledFileClose(&vars,
+ // invalidate & close the image file
+ if (p1) {
+ IOLockLock(gFSLock);
+ }
+ if (kFSTrimDelay == gFSState) {
+ IOPolledFileIOVars * vars = &gFileVars;
+ IOPolledFileClose(&vars,
#if DISABLE_TRIM
- 0, NULL, 0, 0, 0);
+ 0, NULL, 0, 0, 0);
#else
- 0, (caddr_t)gIOHibernateCurrentHeader, sizeof(IOHibernateImageHeader),
- sizeof(IOHibernateImageHeader), gIOHibernateCurrentHeader->imageSize);
+ 0, (caddr_t)gIOHibernateCurrentHeader, sizeof(IOHibernateImageHeader),
+ sizeof(IOHibernateImageHeader), gIOHibernateCurrentHeader->imageSize);
#endif
- gFSState = kFSIdle;
- }
- if (p1) IOLockUnlock(gFSLock);
+ gFSState = kFSIdle;
+ }
+ if (p1) {
+ IOLockUnlock(gFSLock);
+ }
}
IOReturn
IOHibernateSystemPostWake(bool now)
{
- gIOHibernateCurrentHeader->signature = kIOHibernateHeaderInvalidSignature;
- IOLockLock(gFSLock);
- if (kFSTrimDelay == gFSState)
- {
- thread_call_cancel(gIOHibernateTrimCalloutEntry);
- IOHibernateSystemPostWakeTrim(NULL, NULL);
- }
- else if (kFSOpened != gFSState) gFSState = kFSIdle;
- else
- {
- gFSState = kFSTrimDelay;
- if (now)
- {
- thread_call_cancel(gIOHibernateTrimCalloutEntry);
- IOHibernateSystemPostWakeTrim(NULL, NULL);
- }
- else
- {
- AbsoluteTime deadline;
- clock_interval_to_deadline(TRIM_DELAY, kMillisecondScale, &deadline );
- thread_call_enter1_delayed(gIOHibernateTrimCalloutEntry, NULL, deadline);
- }
- }
- IOLockUnlock(gFSLock);
-
- return (kIOReturnSuccess);
+ gIOHibernateCurrentHeader->signature = kIOHibernateHeaderInvalidSignature;
+ IOSetBootImageNVRAM(NULL);
+
+ IOLockLock(gFSLock);
+ if (kFSTrimDelay == gFSState) {
+ thread_call_cancel(gIOHibernateTrimCalloutEntry);
+ IOHibernateSystemPostWakeTrim(NULL, NULL);
+ } else if (kFSOpened != gFSState) {
+ gFSState = kFSIdle;
+ } else {
+ gFSState = kFSTrimDelay;
+ if (now) {
+ thread_call_cancel(gIOHibernateTrimCalloutEntry);
+ IOHibernateSystemPostWakeTrim(NULL, NULL);
+ } else {
+ AbsoluteTime deadline;
+ clock_interval_to_deadline(TRIM_DELAY, kMillisecondScale, &deadline );
+ thread_call_enter1_delayed(gIOHibernateTrimCalloutEntry, NULL, deadline);
+ }
+ }
+ IOLockUnlock(gFSLock);
+
+ return kIOReturnSuccess;
}
-uint32_t IOHibernateWasScreenLocked(void)
+uint32_t
+IOHibernateWasScreenLocked(void)
{
- uint32_t ret = 0;
- if ((kIOHibernateStateWakingFromHibernate == gIOHibernateState) && gIOChosenEntry)
- {
- OSData *
- data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(kIOScreenLockStateKey));
- if (data)
- {
- ret = ((uint32_t *)data->getBytesNoCopy())[0];
- gIOChosenEntry->setProperty(kIOBooterScreenLockStateKey, data);
- }
- }
- else gIOChosenEntry->removeProperty(kIOBooterScreenLockStateKey);
-
- return (ret);
+ uint32_t ret = 0;
+ if ((kIOHibernateStateWakingFromHibernate == gIOHibernateState) && gIOChosenEntry) {
+ OSData *
+ data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(kIOScreenLockStateKey));
+ if (data) {
+ ret = ((uint32_t *)data->getBytesNoCopy())[0];
+ gIOChosenEntry->setProperty(kIOBooterScreenLockStateKey, data);
+ }
+ } else {
+ gIOChosenEntry->removeProperty(kIOBooterScreenLockStateKey);
+ }
+
+ return ret;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
SYSCTL_STRING(_kern, OID_AUTO, hibernatefile,
- CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
- gIOHibernateFilename, sizeof(gIOHibernateFilename), "");
+ CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ gIOHibernateFilename, sizeof(gIOHibernateFilename), "");
SYSCTL_STRING(_kern, OID_AUTO, bootsignature,
- CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
- gIOHibernateBootSignature, sizeof(gIOHibernateBootSignature), "");
+ CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ gIOHibernateBootSignature, sizeof(gIOHibernateBootSignature), "");
SYSCTL_UINT(_kern, OID_AUTO, hibernatemode,
- CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
- &gIOHibernateMode, 0, "");
+ CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &gIOHibernateMode, 0, "");
SYSCTL_STRUCT(_kern, OID_AUTO, hibernatestatistics,
- CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
- &_hibernateStats, hibernate_statistics_t, "");
+ CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &_hibernateStats, hibernate_statistics_t, "");
SYSCTL_STRING(_kern_bridge, OID_AUTO, bootsessionuuid,
- CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
- gIOHibernateBridgeBootSessionUUIDString, sizeof(gIOHibernateBridgeBootSessionUUIDString), "");
+ CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ gIOHibernateBridgeBootSessionUUIDString, sizeof(gIOHibernateBridgeBootSessionUUIDString), "");
SYSCTL_UINT(_kern, OID_AUTO, hibernategraphicsready,
- CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_ANYBODY,
- &_hibernateStats.graphicsReadyTime, 0, "");
+ CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_ANYBODY,
+ &_hibernateStats.graphicsReadyTime, 0, "");
SYSCTL_UINT(_kern, OID_AUTO, hibernatewakenotification,
- CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_ANYBODY,
- &_hibernateStats.wakeNotificationTime, 0, "");
+ CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_ANYBODY,
+ &_hibernateStats.wakeNotificationTime, 0, "");
SYSCTL_UINT(_kern, OID_AUTO, hibernatelockscreenready,
- CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_ANYBODY,
- &_hibernateStats.lockScreenReadyTime, 0, "");
+ CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_ANYBODY,
+ &_hibernateStats.lockScreenReadyTime, 0, "");
SYSCTL_UINT(_kern, OID_AUTO, hibernatehidready,
- CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_ANYBODY,
- &_hibernateStats.hidReadyTime, 0, "");
+ CTLFLAG_RW | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_ANYBODY,
+ &_hibernateStats.hidReadyTime, 0, "");
void
IOHibernateSystemInit(IOPMrootDomain * rootDomain)
{
- gIOHibernateBootImageKey = OSSymbol::withCStringNoCopy(kIOHibernateBootImageKey);
- gIOHibernateBootSignatureKey = OSSymbol::withCStringNoCopy(kIOHibernateBootSignatureKey);
- gIOBridgeBootSessionUUIDKey = OSSymbol::withCStringNoCopy(kIOBridgeBootSessionUUIDKey);
+ gIOHibernateBootImageKey = OSSymbol::withCStringNoCopy(kIOHibernateBootImageKey);
+ gIOHibernateBootSignatureKey = OSSymbol::withCStringNoCopy(kIOHibernateBootSignatureKey);
+ gIOBridgeBootSessionUUIDKey = OSSymbol::withCStringNoCopy(kIOBridgeBootSessionUUIDKey);
#if defined(__i386__) || defined(__x86_64__)
- gIOHibernateRTCVariablesKey = OSSymbol::withCStringNoCopy(kIOHibernateRTCVariablesKey);
- gIOHibernateBoot0082Key = OSSymbol::withCString("8BE4DF61-93CA-11D2-AA0D-00E098032B8C:Boot0082");
- gIOHibernateBootNextKey = OSSymbol::withCString("8BE4DF61-93CA-11D2-AA0D-00E098032B8C:BootNext");
- gIOHibernateRTCVariablesKey = OSSymbol::withCStringNoCopy(kIOHibernateRTCVariablesKey);
+ gIOHibernateRTCVariablesKey = OSSymbol::withCStringNoCopy(kIOHibernateRTCVariablesKey);
+ gIOHibernateBoot0082Key = OSSymbol::withCString("8BE4DF61-93CA-11D2-AA0D-00E098032B8C:Boot0082");
+ gIOHibernateBootNextKey = OSSymbol::withCString("8BE4DF61-93CA-11D2-AA0D-00E098032B8C:BootNext");
+ gIOHibernateRTCVariablesKey = OSSymbol::withCStringNoCopy(kIOHibernateRTCVariablesKey);
#endif /* defined(__i386__) || defined(__x86_64__) */
- OSData * data = OSData::withBytesNoCopy(&gIOHibernateState, sizeof(gIOHibernateState));
- if (data)
- {
- rootDomain->setProperty(kIOHibernateStateKey, data);
- data->release();
- }
-
- if (PE_parse_boot_argn("hfile", gIOHibernateFilename, sizeof(gIOHibernateFilename)))
- gIOHibernateMode = kIOHibernateModeOn;
- else
- gIOHibernateFilename[0] = 0;
-
- sysctl_register_oid(&sysctl__kern_hibernatefile);
- sysctl_register_oid(&sysctl__kern_bootsignature);
- sysctl_register_oid(&sysctl__kern_hibernatemode);
- sysctl_register_oid(&sysctl__kern_hibernatestatistics);
- sysctl_register_oid(&sysctl__kern_hibernategraphicsready);
- sysctl_register_oid(&sysctl__kern_hibernatewakenotification);
- sysctl_register_oid(&sysctl__kern_hibernatelockscreenready);
- sysctl_register_oid(&sysctl__kern_hibernatehidready);
-
- gIOChosenEntry = IORegistryEntry::fromPath("/chosen", gIODTPlane);
-
- if (gIOChosenEntry
- && (data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(gIOBridgeBootSessionUUIDKey)))
- && (sizeof(gIOHibernateBridgeBootSessionUUIDString) <= data->getLength()))
- {
- sysctl_register_oid(&sysctl__kern_bridge_bootsessionuuid);
- bcopy(data->getBytesNoCopy(), &gIOHibernateBridgeBootSessionUUIDString[0], sizeof(gIOHibernateBridgeBootSessionUUIDString));
- }
-
- gFSLock = IOLockAlloc();
+ OSData * data = OSData::withBytesNoCopy(&gIOHibernateState, sizeof(gIOHibernateState));
+ if (data) {
+ rootDomain->setProperty(kIOHibernateStateKey, data);
+ data->release();
+ }
+
+ if (PE_parse_boot_argn("hfile", gIOHibernateFilename, sizeof(gIOHibernateFilename))) {
+ gIOHibernateMode = kIOHibernateModeOn;
+ } else {
+ gIOHibernateFilename[0] = 0;
+ }
+
+ sysctl_register_oid(&sysctl__kern_hibernatefile);
+ sysctl_register_oid(&sysctl__kern_bootsignature);
+ sysctl_register_oid(&sysctl__kern_hibernatemode);
+ sysctl_register_oid(&sysctl__kern_hibernatestatistics);
+ sysctl_register_oid(&sysctl__kern_hibernategraphicsready);
+ sysctl_register_oid(&sysctl__kern_hibernatewakenotification);
+ sysctl_register_oid(&sysctl__kern_hibernatelockscreenready);
+ sysctl_register_oid(&sysctl__kern_hibernatehidready);
+
+ gIOChosenEntry = IORegistryEntry::fromPath("/chosen", gIODTPlane);
+
+ if (gIOChosenEntry
+ && (data = OSDynamicCast(OSData, gIOChosenEntry->getProperty(gIOBridgeBootSessionUUIDKey)))
+ && (sizeof(gIOHibernateBridgeBootSessionUUIDString) <= data->getLength())) {
+ sysctl_register_oid(&sysctl__kern_bridge_bootsessionuuid);
+ bcopy(data->getBytesNoCopy(), &gIOHibernateBridgeBootSessionUUIDString[0], sizeof(gIOHibernateBridgeBootSessionUUIDString));
+ }
+
+ gFSLock = IOLockAlloc();
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static IOReturn
IOHibernatePolledFileWrite(IOPolledFileIOVars * vars,
- const uint8_t * bytes, IOByteCount size,
- IOPolledFileCryptVars * cryptvars)
+ const uint8_t * bytes, IOByteCount size,
+ IOPolledFileCryptVars * cryptvars)
{
- IOReturn err;
+ IOReturn err;
- err = IOPolledFileWrite(vars, bytes, size, cryptvars);
- if ((kIOReturnSuccess == err) && hibernate_should_abort()) err = kIOReturnAborted;
+ err = IOPolledFileWrite(vars, bytes, size, cryptvars);
+ if ((kIOReturnSuccess == err) && hibernate_should_abort()) {
+ err = kIOReturnAborted;
+ }
- return (err);
+ return err;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
extern "C" uint32_t
hibernate_write_image(void)
{
- IOHibernateImageHeader * header = gIOHibernateCurrentHeader;
- IOHibernateVars * vars = &gIOHibernateVars;
- IOPolledFileExtent * fileExtents;
-
- _static_assert_1_arg(sizeof(IOHibernateImageHeader) == 512);
-
- uint32_t pageCount, pagesDone;
- IOReturn err;
- vm_offset_t ppnum, page;
- IOItemCount count;
- uint8_t * src;
- uint8_t * data;
- uint8_t * compressed;
- uint8_t * scratch;
- IOByteCount pageCompressedSize;
- uint64_t compressedSize, uncompressedSize;
- uint64_t image1Size = 0;
- uint32_t bitmap_size;
- bool iterDone, pollerOpen, needEncrypt;
- uint32_t restore1Sum, sum, sum1, sum2;
- int wkresult;
- uint32_t tag;
- uint32_t pageType;
- uint32_t pageAndCount[2];
- addr64_t phys64;
- IOByteCount segLen;
- uintptr_t hibernateBase;
- uintptr_t hibernateEnd;
-
- AbsoluteTime startTime, endTime;
- AbsoluteTime allTime, compTime;
- uint64_t compBytes;
- uint64_t nsec;
- uint32_t lastProgressStamp = 0;
- uint32_t progressStamp;
- uint32_t blob, lastBlob = (uint32_t) -1L;
-
- uint32_t wiredPagesEncrypted;
- uint32_t dirtyPagesEncrypted;
- uint32_t wiredPagesClear;
- uint32_t svPageCount;
- uint32_t zvPageCount;
-
- IOPolledFileCryptVars _cryptvars;
- IOPolledFileCryptVars * cryptvars = 0;
-
- wiredPagesEncrypted = 0;
- dirtyPagesEncrypted = 0;
- wiredPagesClear = 0;
- svPageCount = 0;
- zvPageCount = 0;
-
- if (!vars->fileVars
- || !vars->fileVars->pollers
- || !(kIOHibernateModeOn & gIOHibernateMode)) return (kIOHibernatePostWriteSleep);
-
- if (kIOHibernateModeSleep & gIOHibernateMode)
- kdebug_enable = save_kdebug_enable;
-
- KDBG(IOKDBG_CODE(DBG_HIBERNATE, 1) | DBG_FUNC_START);
- IOService::getPMRootDomain()->tracePoint(kIOPMTracePointHibernate);
-
- restore1Sum = sum1 = sum2 = 0;
+ IOHibernateImageHeader * header = gIOHibernateCurrentHeader;
+ IOHibernateVars * vars = &gIOHibernateVars;
+ IOPolledFileExtent * fileExtents;
+
+ _static_assert_1_arg(sizeof(IOHibernateImageHeader) == 512);
+
+ uint32_t pageCount, pagesDone;
+ IOReturn err;
+ vm_offset_t ppnum, page;
+ IOItemCount count;
+ uint8_t * src;
+ uint8_t * data;
+ uint8_t * compressed;
+ uint8_t * scratch;
+ IOByteCount pageCompressedSize;
+ uint64_t compressedSize, uncompressedSize;
+ uint64_t image1Size = 0;
+ uint32_t bitmap_size;
+ bool iterDone, pollerOpen, needEncrypt;
+ uint32_t restore1Sum, sum, sum1, sum2;
+ int wkresult;
+ uint32_t tag;
+ uint32_t pageType;
+ uint32_t pageAndCount[2];
+ addr64_t phys64;
+ IOByteCount segLen;
+ uintptr_t hibernateBase;
+ uintptr_t hibernateEnd;
+
+ AbsoluteTime startTime, endTime;
+ AbsoluteTime allTime, compTime;
+ uint64_t compBytes;
+ uint64_t nsec;
+ uint32_t lastProgressStamp = 0;
+ uint32_t progressStamp;
+ uint32_t blob, lastBlob = (uint32_t) -1L;
+
+ uint32_t wiredPagesEncrypted;
+ uint32_t dirtyPagesEncrypted;
+ uint32_t wiredPagesClear;
+ uint32_t svPageCount;
+ uint32_t zvPageCount;
+
+ IOPolledFileCryptVars _cryptvars;
+ IOPolledFileCryptVars * cryptvars = NULL;
+
+ wiredPagesEncrypted = 0;
+ dirtyPagesEncrypted = 0;
+ wiredPagesClear = 0;
+ svPageCount = 0;
+ zvPageCount = 0;
+
+ if (!vars->fileVars
+ || !vars->fileVars->pollers
+ || !(kIOHibernateModeOn & gIOHibernateMode)) {
+ return kIOHibernatePostWriteSleep;
+ }
+
+ if (kIOHibernateModeSleep & gIOHibernateMode) {
+ kdebug_enable = save_kdebug_enable;
+ }
+
+ KDBG(IOKDBG_CODE(DBG_HIBERNATE, 1) | DBG_FUNC_START);
+ IOService::getPMRootDomain()->tracePoint(kIOPMTracePointHibernate);
+
+ restore1Sum = sum1 = sum2 = 0;
#if CRYPTO
- // encryption data. "iv" is the "initial vector".
- if (kIOHibernateModeEncrypt & gIOHibernateMode)
- {
- static const unsigned char first_iv[AES_BLOCK_SIZE]
- = { 0xa3, 0x63, 0x65, 0xa9, 0x0b, 0x71, 0x7b, 0x1c,
- 0xdf, 0x9e, 0x5f, 0x32, 0xd7, 0x61, 0x63, 0xda };
-
- cryptvars = &gIOHibernateCryptWakeContext;
- bzero(cryptvars, sizeof(IOPolledFileCryptVars));
- aes_encrypt_key(vars->cryptKey,
- kIOHibernateAESKeySize,
- &cryptvars->ctx.encrypt);
- aes_decrypt_key(vars->cryptKey,
- kIOHibernateAESKeySize,
- &cryptvars->ctx.decrypt);
-
- cryptvars = &_cryptvars;
- bzero(cryptvars, sizeof(IOPolledFileCryptVars));
- for (pageCount = 0; pageCount < sizeof(vars->wiredCryptKey); pageCount++)
- vars->wiredCryptKey[pageCount] ^= vars->volumeCryptKey[pageCount];
- aes_encrypt_key(vars->wiredCryptKey,
- kIOHibernateAESKeySize,
- &cryptvars->ctx.encrypt);
-
- bcopy(&first_iv[0], &cryptvars->aes_iv[0], AES_BLOCK_SIZE);
- bzero(&vars->wiredCryptKey[0], sizeof(vars->wiredCryptKey));
- bzero(&vars->cryptKey[0], sizeof(vars->cryptKey));
- }
+ // encryption data. "iv" is the "initial vector".
+ if (kIOHibernateModeEncrypt & gIOHibernateMode) {
+ static const unsigned char first_iv[AES_BLOCK_SIZE]
+ = { 0xa3, 0x63, 0x65, 0xa9, 0x0b, 0x71, 0x7b, 0x1c,
+ 0xdf, 0x9e, 0x5f, 0x32, 0xd7, 0x61, 0x63, 0xda };
+
+ cryptvars = &gIOHibernateCryptWakeContext;
+ bzero(cryptvars, sizeof(IOPolledFileCryptVars));
+ aes_encrypt_key(vars->cryptKey,
+ kIOHibernateAESKeySize,
+ &cryptvars->ctx.encrypt);
+ aes_decrypt_key(vars->cryptKey,
+ kIOHibernateAESKeySize,
+ &cryptvars->ctx.decrypt);
+
+ cryptvars = &_cryptvars;
+ bzero(cryptvars, sizeof(IOPolledFileCryptVars));
+ for (pageCount = 0; pageCount < sizeof(vars->wiredCryptKey); pageCount++) {
+ vars->wiredCryptKey[pageCount] ^= vars->volumeCryptKey[pageCount];
+ }
+ aes_encrypt_key(vars->wiredCryptKey,
+ kIOHibernateAESKeySize,
+ &cryptvars->ctx.encrypt);
+
+ bcopy(&first_iv[0], &cryptvars->aes_iv[0], AES_BLOCK_SIZE);
+ bzero(&vars->wiredCryptKey[0], sizeof(vars->wiredCryptKey));
+ bzero(&vars->cryptKey[0], sizeof(vars->cryptKey));
+ }
#endif /* CRYPTO */
- hibernate_page_list_setall(vars->page_list,
- vars->page_list_wired,
- vars->page_list_pal,
- false /* !preflight */,
- /* discard_all */
- ((0 == (kIOHibernateModeSleep & gIOHibernateMode))
- && (0 != ((kIOHibernateModeDiscardCleanActive | kIOHibernateModeDiscardCleanInactive) & gIOHibernateMode))),
- &pageCount);
+ hibernate_page_list_setall(vars->page_list,
+ vars->page_list_wired,
+ vars->page_list_pal,
+ false /* !preflight */,
+ /* discard_all */
+ ((0 == (kIOHibernateModeSleep & gIOHibernateMode))
+ && (0 != ((kIOHibernateModeDiscardCleanActive | kIOHibernateModeDiscardCleanInactive) & gIOHibernateMode))),
+ &pageCount);
- HIBLOG("hibernate_page_list_setall found pageCount %d\n", pageCount);
+ HIBLOG("hibernate_page_list_setall found pageCount %d\n", pageCount);
- fileExtents = (IOPolledFileExtent *) vars->fileVars->fileExtents->getBytesNoCopy();
+ fileExtents = (IOPolledFileExtent *) vars->fileVars->fileExtents->getBytesNoCopy();
#if 0
- count = vars->fileExtents->getLength() / sizeof(IOPolledFileExtent);
- for (page = 0; page < count; page++)
- {
- HIBLOG("fileExtents[%d] %qx, %qx (%qx)\n", page,
- fileExtents[page].start, fileExtents[page].length,
- fileExtents[page].start + fileExtents[page].length);
- }
+ count = vars->fileExtents->getLength() / sizeof(IOPolledFileExtent);
+ for (page = 0; page < count; page++) {
+ HIBLOG("fileExtents[%d] %qx, %qx (%qx)\n", page,
+ fileExtents[page].start, fileExtents[page].length,
+ fileExtents[page].start + fileExtents[page].length);
+ }
#endif
- needEncrypt = (0 != (kIOHibernateModeEncrypt & gIOHibernateMode));
- AbsoluteTime_to_scalar(&compTime) = 0;
- compBytes = 0;
-
- clock_get_uptime(&allTime);
- IOService::getPMRootDomain()->pmStatsRecordEvent(
- kIOPMStatsHibernateImageWrite | kIOPMStatsEventStartFlag, allTime);
- do
- {
- compressedSize = 0;
- uncompressedSize = 0;
- svPageCount = 0;
- zvPageCount = 0;
-
- IOPolledFileSeek(vars->fileVars, vars->fileVars->blockSize);
-
- HIBLOG("IOHibernatePollerOpen, ml_get_interrupts_enabled %d\n",
- ml_get_interrupts_enabled());
- err = IOPolledFilePollersOpen(vars->fileVars, kIOPolledBeforeSleepState,
- // abortable if not low battery
- !IOService::getPMRootDomain()->mustHibernate());
- HIBLOG("IOHibernatePollerOpen(%x)\n", err);
- pollerOpen = (kIOReturnSuccess == err);
- if (!pollerOpen)
- break;
-
- if (vars->volumeCryptKeySize)
- {
- err = IOPolledFilePollersSetEncryptionKey(vars->fileVars, &vars->volumeCryptKey[0], vars->volumeCryptKeySize);
- HIBLOG("IOPolledFilePollersSetEncryptionKey(%x)\n", err);
- vars->hwEncrypt = (kIOReturnSuccess == err);
- bzero(&vars->volumeCryptKey[0], sizeof(vars->volumeCryptKey));
- if (vars->hwEncrypt) header->options |= kIOHibernateOptionHWEncrypt;
- }
-
- // copy file block extent list if larger than header
-
- count = vars->fileVars->fileExtents->getLength();
- if (count > sizeof(header->fileExtentMap))
- {
- count -= sizeof(header->fileExtentMap);
- err = IOHibernatePolledFileWrite(vars->fileVars,
- ((uint8_t *) &fileExtents[0]) + sizeof(header->fileExtentMap), count, cryptvars);
- if (kIOReturnSuccess != err)
- break;
- }
-
- hibernateBase = HIB_BASE; /* Defined in PAL headers */
- hibernateEnd = (segHIBB + segSizeHIB);
-
- // copy out restore1 code
-
- for (count = 0;
- (phys64 = vars->handoffBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone));
- count += segLen)
- {
- for (pagesDone = 0; pagesDone < atop_32(segLen); pagesDone++)
- {
- gIOHibernateHandoffPages[atop_32(count) + pagesDone] = atop_64(phys64) + pagesDone;
- }
- }
-
- page = atop_32(kvtophys(hibernateBase));
- count = atop_32(round_page(hibernateEnd) - hibernateBase);
- header->restore1CodePhysPage = page;
- header->restore1CodeVirt = hibernateBase;
- header->restore1PageCount = count;
- header->restore1CodeOffset = ((uintptr_t) &hibernate_machine_entrypoint) - hibernateBase;
- header->restore1StackOffset = ((uintptr_t) &gIOHibernateRestoreStackEnd[0]) - 64 - hibernateBase;
-
- if (uuid_parse(&gIOHibernateBridgeBootSessionUUIDString[0], &header->bridgeBootSessionUUID[0]))
- {
- bzero(&header->bridgeBootSessionUUID[0], sizeof(header->bridgeBootSessionUUID));
- }
-
- // sum __HIB seg, with zeros for the stack
- src = (uint8_t *) trunc_page(hibernateBase);
- for (page = 0; page < count; page++)
- {
- if ((src < &gIOHibernateRestoreStack[0]) || (src >= &gIOHibernateRestoreStackEnd[0]))
- restore1Sum += hibernate_sum_page(src, header->restore1CodeVirt + page);
- else
- restore1Sum += 0x00000000;
- src += page_size;
- }
- sum1 = restore1Sum;
-
- // write the __HIB seg, with zeros for the stack
-
- src = (uint8_t *) trunc_page(hibernateBase);
- count = ((uintptr_t) &gIOHibernateRestoreStack[0]) - trunc_page(hibernateBase);
- if (count)
- {
- err = IOHibernatePolledFileWrite(vars->fileVars, src, count, cryptvars);
- if (kIOReturnSuccess != err)
- break;
- }
- err = IOHibernatePolledFileWrite(vars->fileVars,
- (uint8_t *) 0,
- &gIOHibernateRestoreStackEnd[0] - &gIOHibernateRestoreStack[0],
- cryptvars);
- if (kIOReturnSuccess != err)
- break;
- src = &gIOHibernateRestoreStackEnd[0];
- count = round_page(hibernateEnd) - ((uintptr_t) src);
- if (count)
- {
- err = IOHibernatePolledFileWrite(vars->fileVars, src, count, cryptvars);
- if (kIOReturnSuccess != err)
- break;
- }
-
- if (!vars->hwEncrypt && (kIOHibernateModeEncrypt & gIOHibernateMode))
- {
- vars->fileVars->encryptStart = (vars->fileVars->position & ~(AES_BLOCK_SIZE - 1));
- vars->fileVars->encryptEnd = UINT64_MAX;
- HIBLOG("encryptStart %qx\n", vars->fileVars->encryptStart);
- }
-
- // write the preview buffer
-
- if (vars->previewBuffer)
- {
- ppnum = 0;
- count = 0;
- do
- {
- phys64 = vars->previewBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone);
- pageAndCount[0] = atop_64(phys64);
- pageAndCount[1] = atop_32(segLen);
- err = IOHibernatePolledFileWrite(vars->fileVars,
- (const uint8_t *) &pageAndCount, sizeof(pageAndCount),
- cryptvars);
- if (kIOReturnSuccess != err)
- break;
- count += segLen;
- ppnum += sizeof(pageAndCount);
- }
- while (phys64);
- if (kIOReturnSuccess != err)
- break;
-
- src = (uint8_t *) vars->previewBuffer->getPhysicalSegment(0, NULL, _kIOMemorySourceSegment);
+ needEncrypt = (0 != (kIOHibernateModeEncrypt & gIOHibernateMode));
+ AbsoluteTime_to_scalar(&compTime) = 0;
+ compBytes = 0;
+
+ clock_get_uptime(&allTime);
+ IOService::getPMRootDomain()->pmStatsRecordEvent(
+ kIOPMStatsHibernateImageWrite | kIOPMStatsEventStartFlag, allTime);
+ do{
+ compressedSize = 0;
+ uncompressedSize = 0;
+ svPageCount = 0;
+ zvPageCount = 0;
+
+ IOPolledFileSeek(vars->fileVars, vars->fileVars->blockSize);
+
+ HIBLOG("IOHibernatePollerOpen, ml_get_interrupts_enabled %d\n",
+ ml_get_interrupts_enabled());
+ err = IOPolledFilePollersOpen(vars->fileVars, kIOPolledBeforeSleepState,
+ // abortable if not low battery
+ !IOService::getPMRootDomain()->mustHibernate());
+ HIBLOG("IOHibernatePollerOpen(%x)\n", err);
+ pollerOpen = (kIOReturnSuccess == err);
+ if (!pollerOpen) {
+ break;
+ }
+
+ if (vars->volumeCryptKeySize) {
+ err = IOPolledFilePollersSetEncryptionKey(vars->fileVars, &vars->volumeCryptKey[0], vars->volumeCryptKeySize);
+ HIBLOG("IOPolledFilePollersSetEncryptionKey(%x)\n", err);
+ vars->hwEncrypt = (kIOReturnSuccess == err);
+ bzero(&vars->volumeCryptKey[0], sizeof(vars->volumeCryptKey));
+ if (vars->hwEncrypt) {
+ header->options |= kIOHibernateOptionHWEncrypt;
+ }
+ }
+
+ // copy file block extent list if larger than header
+
+ count = vars->fileVars->fileExtents->getLength();
+ if (count > sizeof(header->fileExtentMap)) {
+ count -= sizeof(header->fileExtentMap);
+ err = IOHibernatePolledFileWrite(vars->fileVars,
+ ((uint8_t *) &fileExtents[0]) + sizeof(header->fileExtentMap), count, cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+ }
+
+ hibernateBase = HIB_BASE; /* Defined in PAL headers */
+ hibernateEnd = (segHIBB + segSizeHIB);
+
+ // copy out restore1 code
+
+ for (count = 0;
+ (phys64 = vars->handoffBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone));
+ count += segLen) {
+ for (pagesDone = 0; pagesDone < atop_32(segLen); pagesDone++) {
+ gIOHibernateHandoffPages[atop_32(count) + pagesDone] = atop_64(phys64) + pagesDone;
+ }
+ }
+
+ page = atop_32(kvtophys(hibernateBase));
+ count = atop_32(round_page(hibernateEnd) - hibernateBase);
+ header->restore1CodePhysPage = page;
+ header->restore1CodeVirt = hibernateBase;
+ header->restore1PageCount = count;
+ header->restore1CodeOffset = ((uintptr_t) &hibernate_machine_entrypoint) - hibernateBase;
+ header->restore1StackOffset = ((uintptr_t) &gIOHibernateRestoreStackEnd[0]) - 64 - hibernateBase;
+
+ if (uuid_parse(&gIOHibernateBridgeBootSessionUUIDString[0], &header->bridgeBootSessionUUID[0])) {
+ bzero(&header->bridgeBootSessionUUID[0], sizeof(header->bridgeBootSessionUUID));
+ }
+
+ // sum __HIB seg, with zeros for the stack
+ src = (uint8_t *) trunc_page(hibernateBase);
+ for (page = 0; page < count; page++) {
+ if ((src < &gIOHibernateRestoreStack[0]) || (src >= &gIOHibernateRestoreStackEnd[0])) {
+ restore1Sum += hibernate_sum_page(src, header->restore1CodeVirt + page);
+ } else {
+ restore1Sum += 0x00000000;
+ }
+ src += page_size;
+ }
+ sum1 = restore1Sum;
+
+ // write the __HIB seg, with zeros for the stack
+
+ src = (uint8_t *) trunc_page(hibernateBase);
+ count = ((uintptr_t) &gIOHibernateRestoreStack[0]) - trunc_page(hibernateBase);
+ if (count) {
+ err = IOHibernatePolledFileWrite(vars->fileVars, src, count, cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+ }
+ err = IOHibernatePolledFileWrite(vars->fileVars,
+ (uint8_t *) NULL,
+ &gIOHibernateRestoreStackEnd[0] - &gIOHibernateRestoreStack[0],
+ cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+ src = &gIOHibernateRestoreStackEnd[0];
+ count = round_page(hibernateEnd) - ((uintptr_t) src);
+ if (count) {
+ err = IOHibernatePolledFileWrite(vars->fileVars, src, count, cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+ }
+
+ if (!vars->hwEncrypt && (kIOHibernateModeEncrypt & gIOHibernateMode)) {
+ vars->fileVars->encryptStart = (vars->fileVars->position & ~(AES_BLOCK_SIZE - 1));
+ vars->fileVars->encryptEnd = UINT64_MAX;
+ HIBLOG("encryptStart %qx\n", vars->fileVars->encryptStart);
+ }
+
+ // write the preview buffer
+
+ if (vars->previewBuffer) {
+ ppnum = 0;
+ count = 0;
+ do{
+ phys64 = vars->previewBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone);
+ pageAndCount[0] = atop_64(phys64);
+ pageAndCount[1] = atop_32(segLen);
+ err = IOHibernatePolledFileWrite(vars->fileVars,
+ (const uint8_t *) &pageAndCount, sizeof(pageAndCount),
+ cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+ count += segLen;
+ ppnum += sizeof(pageAndCount);
+ }while (phys64);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+
+ src = (uint8_t *) vars->previewBuffer->getPhysicalSegment(0, NULL, _kIOMemorySourceSegment);
((hibernate_preview_t *)src)->lockTime = gIOConsoleLockTime;
- count = vars->previewBuffer->getLength();
-
- header->previewPageListSize = ppnum;
- header->previewSize = count + ppnum;
-
- for (page = 0; page < count; page += page_size)
- {
- phys64 = vars->previewBuffer->getPhysicalSegment(page, NULL, kIOMemoryMapperNone);
- sum1 += hibernate_sum_page(src + page, atop_64(phys64));
- }
- err = IOHibernatePolledFileWrite(vars->fileVars, src, count, cryptvars);
- if (kIOReturnSuccess != err)
- break;
- }
-
- // mark areas for no save
- IOMemoryDescriptor * ioBuffer;
- ioBuffer = IOPolledFileGetIOBuffer(vars->fileVars);
- for (count = 0;
- (phys64 = ioBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone));
- count += segLen)
- {
- hibernate_set_page_state(vars->page_list, vars->page_list_wired,
- atop_64(phys64), atop_32(segLen),
- kIOHibernatePageStateFree);
- pageCount -= atop_32(segLen);
- }
-
- for (count = 0;
- (phys64 = vars->srcBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone));
- count += segLen)
- {
- hibernate_set_page_state(vars->page_list, vars->page_list_wired,
- atop_64(phys64), atop_32(segLen),
- kIOHibernatePageStateFree);
- pageCount -= atop_32(segLen);
- }
-
- // copy out bitmap of pages available for trashing during restore
-
- bitmap_size = vars->page_list_wired->list_size;
- src = (uint8_t *) vars->page_list_wired;
- err = IOHibernatePolledFileWrite(vars->fileVars, src, bitmap_size, cryptvars);
- if (kIOReturnSuccess != err)
- break;
-
- // mark more areas for no save, but these are not available
- // for trashing during restore
-
- hibernate_page_list_set_volatile(vars->page_list, vars->page_list_wired, &pageCount);
-
-
- page = atop_32(KERNEL_IMAGE_TO_PHYS(hibernateBase));
- count = atop_32(round_page(KERNEL_IMAGE_TO_PHYS(hibernateEnd))) - page;
- hibernate_set_page_state(vars->page_list, vars->page_list_wired,
- page, count,
- kIOHibernatePageStateFree);
- pageCount -= count;
-
- if (vars->previewBuffer) for (count = 0;
- (phys64 = vars->previewBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone));
- count += segLen)
- {
- hibernate_set_page_state(vars->page_list, vars->page_list_wired,
- atop_64(phys64), atop_32(segLen),
- kIOHibernatePageStateFree);
- pageCount -= atop_32(segLen);
- }
-
- for (count = 0;
- (phys64 = vars->handoffBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone));
- count += segLen)
- {
- hibernate_set_page_state(vars->page_list, vars->page_list_wired,
- atop_64(phys64), atop_32(segLen),
- kIOHibernatePageStateFree);
- pageCount -= atop_32(segLen);
- }
+ count = vars->previewBuffer->getLength();
+
+ header->previewPageListSize = ppnum;
+ header->previewSize = count + ppnum;
+
+ for (page = 0; page < count; page += page_size) {
+ phys64 = vars->previewBuffer->getPhysicalSegment(page, NULL, kIOMemoryMapperNone);
+ sum1 += hibernate_sum_page(src + page, atop_64(phys64));
+ }
+ err = IOHibernatePolledFileWrite(vars->fileVars, src, count, cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+ }
+
+ // mark areas for no save
+ IOMemoryDescriptor * ioBuffer;
+ ioBuffer = IOPolledFileGetIOBuffer(vars->fileVars);
+ for (count = 0;
+ (phys64 = ioBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone));
+ count += segLen) {
+ hibernate_set_page_state(vars->page_list, vars->page_list_wired,
+ atop_64(phys64), atop_32(segLen),
+ kIOHibernatePageStateFree);
+ pageCount -= atop_32(segLen);
+ }
+
+ for (count = 0;
+ (phys64 = vars->srcBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone));
+ count += segLen) {
+ hibernate_set_page_state(vars->page_list, vars->page_list_wired,
+ atop_64(phys64), atop_32(segLen),
+ kIOHibernatePageStateFree);
+ pageCount -= atop_32(segLen);
+ }
+
+ // copy out bitmap of pages available for trashing during restore
+
+ bitmap_size = vars->page_list_wired->list_size;
+ src = (uint8_t *) vars->page_list_wired;
+ err = IOHibernatePolledFileWrite(vars->fileVars, src, bitmap_size, cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+
+ // mark more areas for no save, but these are not available
+ // for trashing during restore
+
+ hibernate_page_list_set_volatile(vars->page_list, vars->page_list_wired, &pageCount);
+
+
+ page = atop_32(KERNEL_IMAGE_TO_PHYS(hibernateBase));
+ count = atop_32(round_page(KERNEL_IMAGE_TO_PHYS(hibernateEnd))) - page;
+ hibernate_set_page_state(vars->page_list, vars->page_list_wired,
+ page, count,
+ kIOHibernatePageStateFree);
+ pageCount -= count;
+
+ if (vars->previewBuffer) {
+ for (count = 0;
+ (phys64 = vars->previewBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone));
+ count += segLen) {
+ hibernate_set_page_state(vars->page_list, vars->page_list_wired,
+ atop_64(phys64), atop_32(segLen),
+ kIOHibernatePageStateFree);
+ pageCount -= atop_32(segLen);
+ }
+ }
+
+ for (count = 0;
+ (phys64 = vars->handoffBuffer->getPhysicalSegment(count, &segLen, kIOMemoryMapperNone));
+ count += segLen) {
+ hibernate_set_page_state(vars->page_list, vars->page_list_wired,
+ atop_64(phys64), atop_32(segLen),
+ kIOHibernatePageStateFree);
+ pageCount -= atop_32(segLen);
+ }
#if KASAN
vm_size_t shadow_pages_free = atop_64(shadow_ptop) - atop_64(shadow_pnext);
/* no need to save unused shadow pages */
hibernate_set_page_state(vars->page_list, vars->page_list_wired,
- atop_64(shadow_pnext),
- shadow_pages_free,
- kIOHibernatePageStateFree);
+ atop_64(shadow_pnext),
+ shadow_pages_free,
+ kIOHibernatePageStateFree);
#endif
- src = (uint8_t *) vars->srcBuffer->getBytesNoCopy();
- compressed = src + page_size;
- scratch = compressed + page_size;
-
- pagesDone = 0;
- lastBlob = 0;
-
- HIBLOG("bitmap_size 0x%x, previewSize 0x%x, writing %d pages @ 0x%llx\n",
- bitmap_size, header->previewSize,
- pageCount, vars->fileVars->position);
-
- enum
- // pageType
- {
- kWired = 0x02,
- kEncrypt = 0x01,
- kWiredEncrypt = kWired | kEncrypt,
- kWiredClear = kWired,
- kUnwiredEncrypt = kEncrypt
- };
-
- bool cpuAES = (0 != (CPUID_FEATURE_AES & cpuid_features()));
-#define _pmap_is_noencrypt(x) (cpuAES ? false : pmap_is_noencrypt((x)))
-
- for (pageType = kWiredEncrypt; pageType >= kUnwiredEncrypt; pageType--)
- {
- if (kUnwiredEncrypt == pageType)
- {
- // start unwired image
- if (kIOHibernateModeEncrypt & gIOHibernateMode)
+ src = (uint8_t *) vars->srcBuffer->getBytesNoCopy();
+ compressed = src + page_size;
+ scratch = compressed + page_size;
+
+ pagesDone = 0;
+ lastBlob = 0;
+
+ HIBLOG("bitmap_size 0x%x, previewSize 0x%x, writing %d pages @ 0x%llx\n",
+ bitmap_size, header->previewSize,
+ pageCount, vars->fileVars->position);
+
+ enum
+ // pageType
{
- vars->fileVars->encryptStart = (vars->fileVars->position & ~(((uint64_t)AES_BLOCK_SIZE) - 1));
- vars->fileVars->encryptEnd = UINT64_MAX;
- HIBLOG("encryptStart %qx\n", vars->fileVars->encryptStart);
- }
- bcopy(&cryptvars->aes_iv[0],
- &gIOHibernateCryptWakeContext.aes_iv[0],
- sizeof(cryptvars->aes_iv));
- cryptvars = &gIOHibernateCryptWakeContext;
- }
- for (iterDone = false, ppnum = 0; !iterDone; )
- {
- count = hibernate_page_list_iterate((kWired & pageType)
- ? vars->page_list_wired : vars->page_list,
- &ppnum);
+ kWired = 0x02,
+ kEncrypt = 0x01,
+ kWiredEncrypt = kWired | kEncrypt,
+ kWiredClear = kWired,
+ kUnwiredEncrypt = kEncrypt
+ };
+
+ bool cpuAES = (0 != (CPUID_FEATURE_AES & cpuid_features()));
+
+ for (pageType = kWiredEncrypt; pageType >= kUnwiredEncrypt; pageType--) {
+ if (kUnwiredEncrypt == pageType) {
+ // start unwired image
+ if (!vars->hwEncrypt && (kIOHibernateModeEncrypt & gIOHibernateMode)) {
+ vars->fileVars->encryptStart = (vars->fileVars->position & ~(((uint64_t)AES_BLOCK_SIZE) - 1));
+ vars->fileVars->encryptEnd = UINT64_MAX;
+ HIBLOG("encryptStart %qx\n", vars->fileVars->encryptStart);
+ }
+ bcopy(&cryptvars->aes_iv[0],
+ &gIOHibernateCryptWakeContext.aes_iv[0],
+ sizeof(cryptvars->aes_iv));
+ cryptvars = &gIOHibernateCryptWakeContext;
+ }
+ for (iterDone = false, ppnum = 0; !iterDone;) {
+ if (cpuAES && (pageType == kWiredClear)) {
+ count = 0;
+ } else {
+ count = hibernate_page_list_iterate((kWired & pageType) ? vars->page_list_wired : vars->page_list,
+ &ppnum);
+ }
// kprintf("[%d](%x : %x)\n", pageType, ppnum, count);
- iterDone = !count;
-
- if (count && (kWired & pageType) && needEncrypt)
- {
- uint32_t checkIndex;
- for (checkIndex = 0;
- (checkIndex < count)
- && (((kEncrypt & pageType) == 0) == _pmap_is_noencrypt(ppnum + checkIndex));
- checkIndex++)
- {}
- if (!checkIndex)
- {
- ppnum++;
- continue;
- }
- count = checkIndex;
- }
-
- switch (pageType)
- {
- case kWiredEncrypt: wiredPagesEncrypted += count; break;
- case kWiredClear: wiredPagesClear += count; break;
- case kUnwiredEncrypt: dirtyPagesEncrypted += count; break;
- }
-
- if (iterDone && (kWiredEncrypt == pageType)) {/* not yet end of wired list */}
- else
- {
- pageAndCount[0] = ppnum;
- pageAndCount[1] = count;
- err = IOHibernatePolledFileWrite(vars->fileVars,
- (const uint8_t *) &pageAndCount, sizeof(pageAndCount),
- cryptvars);
- if (kIOReturnSuccess != err)
- break;
- }
-
- for (page = ppnum; page < (ppnum + count); page++)
- {
- err = IOMemoryDescriptorWriteFromPhysical(vars->srcBuffer, 0, ptoa_64(page), page_size);
- if (err)
- {
- HIBLOG("IOMemoryDescriptorWriteFromPhysical %d [%ld] %x\n", __LINE__, (long)page, err);
- break;
- }
-
- sum = hibernate_sum_page(src, page);
- if (kWired & pageType)
- sum1 += sum;
- else
- sum2 += sum;
-
- clock_get_uptime(&startTime);
- wkresult = WKdm_compress_new((const WK_word*) src,
- (WK_word*) compressed,
- (WK_word*) scratch,
- page_size - 4);
-
- clock_get_uptime(&endTime);
- ADD_ABSOLUTETIME(&compTime, &endTime);
- SUB_ABSOLUTETIME(&compTime, &startTime);
-
- compBytes += page_size;
- pageCompressedSize = (-1 == wkresult) ? page_size : wkresult;
-
- if (pageCompressedSize == 0)
- {
- pageCompressedSize = 4;
- data = src;
-
- if (*(uint32_t *)src)
- svPageCount++;
- else
- zvPageCount++;
- }
- else
- {
- if (pageCompressedSize != page_size)
- data = compressed;
- else
- data = src;
- }
-
- tag = pageCompressedSize | kIOHibernateTagSignature;
- err = IOHibernatePolledFileWrite(vars->fileVars, (const uint8_t *) &tag, sizeof(tag), cryptvars);
- if (kIOReturnSuccess != err)
- break;
-
- err = IOHibernatePolledFileWrite(vars->fileVars, data, (pageCompressedSize + 3) & ~3, cryptvars);
- if (kIOReturnSuccess != err)
- break;
-
- compressedSize += pageCompressedSize;
- uncompressedSize += page_size;
- pagesDone++;
-
- if (vars->consoleMapping && (0 == (1023 & pagesDone)))
- {
- blob = ((pagesDone * kIOHibernateProgressCount) / pageCount);
- if (blob != lastBlob)
- {
- ProgressUpdate(gIOHibernateGraphicsInfo, vars->consoleMapping, lastBlob, blob);
- lastBlob = blob;
- }
- }
- if (0 == (8191 & pagesDone))
- {
- clock_get_uptime(&endTime);
- SUB_ABSOLUTETIME(&endTime, &allTime);
- absolutetime_to_nanoseconds(endTime, &nsec);
- progressStamp = nsec / 750000000ULL;
- if (progressStamp != lastProgressStamp)
- {
- lastProgressStamp = progressStamp;
- HIBPRINT("pages %d (%d%%)\n", pagesDone, (100 * pagesDone) / pageCount);
- }
- }
- }
- if (kIOReturnSuccess != err)
- break;
- ppnum = page;
- }
-
- if (kIOReturnSuccess != err)
- break;
-
- if ((kEncrypt & pageType) && vars->fileVars->encryptStart)
- {
- vars->fileVars->encryptEnd = ((vars->fileVars->position + 511) & ~511ULL);
- HIBLOG("encryptEnd %qx\n", vars->fileVars->encryptEnd);
- }
-
- if (kWiredEncrypt != pageType)
- {
- // end of image1/2 - fill to next block
- err = IOHibernatePolledFileWrite(vars->fileVars, 0, 0, cryptvars);
- if (kIOReturnSuccess != err)
- break;
- }
- if (kWiredClear == pageType)
- {
- // enlarge wired image for test
+ iterDone = !count;
+
+ if (!cpuAES) {
+ if (count && (kWired & pageType) && needEncrypt) {
+ uint32_t checkIndex;
+ for (checkIndex = 0;
+ (checkIndex < count)
+ && (((kEncrypt & pageType) == 0) == pmap_is_noencrypt(ppnum + checkIndex));
+ checkIndex++) {
+ }
+ if (!checkIndex) {
+ ppnum++;
+ continue;
+ }
+ count = checkIndex;
+ }
+ }
+
+ switch (pageType) {
+ case kWiredEncrypt: wiredPagesEncrypted += count; break;
+ case kWiredClear: wiredPagesClear += count; break;
+ case kUnwiredEncrypt: dirtyPagesEncrypted += count; break;
+ }
+
+ if (iterDone && (kWiredEncrypt == pageType)) {/* not yet end of wired list */
+ } else {
+ pageAndCount[0] = ppnum;
+ pageAndCount[1] = count;
+ err = IOHibernatePolledFileWrite(vars->fileVars,
+ (const uint8_t *) &pageAndCount, sizeof(pageAndCount),
+ cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+ }
+
+ for (page = ppnum; page < (ppnum + count); page++) {
+ err = IOMemoryDescriptorWriteFromPhysical(vars->srcBuffer, 0, ptoa_64(page), page_size);
+ if (err) {
+ HIBLOG("IOMemoryDescriptorWriteFromPhysical %d [%ld] %x\n", __LINE__, (long)page, err);
+ break;
+ }
+
+ sum = hibernate_sum_page(src, page);
+ if (kWired & pageType) {
+ sum1 += sum;
+ } else {
+ sum2 += sum;
+ }
+
+ clock_get_uptime(&startTime);
+ wkresult = WKdm_compress_new((const WK_word*) src,
+ (WK_word*) compressed,
+ (WK_word*) scratch,
+ page_size - 4);
+
+ clock_get_uptime(&endTime);
+ ADD_ABSOLUTETIME(&compTime, &endTime);
+ SUB_ABSOLUTETIME(&compTime, &startTime);
+
+ compBytes += page_size;
+ pageCompressedSize = (-1 == wkresult) ? page_size : wkresult;
+
+ if (pageCompressedSize == 0) {
+ pageCompressedSize = 4;
+ data = src;
+
+ if (*(uint32_t *)src) {
+ svPageCount++;
+ } else {
+ zvPageCount++;
+ }
+ } else {
+ if (pageCompressedSize != page_size) {
+ data = compressed;
+ } else {
+ data = src;
+ }
+ }
+
+ tag = pageCompressedSize | kIOHibernateTagSignature;
+ err = IOHibernatePolledFileWrite(vars->fileVars, (const uint8_t *) &tag, sizeof(tag), cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+
+ err = IOHibernatePolledFileWrite(vars->fileVars, data, (pageCompressedSize + 3) & ~3, cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+
+ compressedSize += pageCompressedSize;
+ uncompressedSize += page_size;
+ pagesDone++;
+
+ if (vars->consoleMapping && (0 == (1023 & pagesDone))) {
+ blob = ((pagesDone * kIOHibernateProgressCount) / pageCount);
+ if (blob != lastBlob) {
+ ProgressUpdate(gIOHibernateGraphicsInfo, vars->consoleMapping, lastBlob, blob);
+ lastBlob = blob;
+ }
+ }
+ if (0 == (8191 & pagesDone)) {
+ clock_get_uptime(&endTime);
+ SUB_ABSOLUTETIME(&endTime, &allTime);
+ absolutetime_to_nanoseconds(endTime, &nsec);
+ progressStamp = nsec / 750000000ULL;
+ if (progressStamp != lastProgressStamp) {
+ lastProgressStamp = progressStamp;
+ HIBPRINT("pages %d (%d%%)\n", pagesDone, (100 * pagesDone) / pageCount);
+ }
+ }
+ }
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+ ppnum = page;
+ }
+
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+
+ if ((kEncrypt & pageType) && vars->fileVars->encryptStart) {
+ vars->fileVars->encryptEnd = ((vars->fileVars->position + 511) & ~511ULL);
+ HIBLOG("encryptEnd %qx\n", vars->fileVars->encryptEnd);
+ }
+
+ if (kWiredEncrypt != pageType) {
+ // end of image1/2 - fill to next block
+ err = IOHibernatePolledFileWrite(vars->fileVars, NULL, 0, cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+ }
+ if (kWiredClear == pageType) {
+ // enlarge wired image for test
// err = IOHibernatePolledFileWrite(vars->fileVars, 0, 0x60000000, cryptvars);
- // end wired image
- header->encryptStart = vars->fileVars->encryptStart;
- header->encryptEnd = vars->fileVars->encryptEnd;
- image1Size = vars->fileVars->position;
- HIBLOG("image1Size 0x%qx, encryptStart1 0x%qx, End1 0x%qx\n",
- image1Size, header->encryptStart, header->encryptEnd);
- }
- }
- if (kIOReturnSuccess != err)
- {
- if (kIOReturnOverrun == err)
- {
- // update actual compression ratio on not enough space (for retry)
- gIOHibernateCompression = (compressedSize << 8) / uncompressedSize;
- }
-
- // update partial amount written (for IOPolledFileClose cleanup/unmap)
- header->imageSize = vars->fileVars->position;
- break;
- }
-
- // Header:
-
- header->imageSize = vars->fileVars->position;
- header->image1Size = image1Size;
- header->bitmapSize = bitmap_size;
- header->pageCount = pageCount;
-
- header->restore1Sum = restore1Sum;
- header->image1Sum = sum1;
- header->image2Sum = sum2;
- header->sleepTime = gIOLastSleepTime.tv_sec;
-
- header->compression = (compressedSize << 8) / uncompressedSize;
- gIOHibernateCompression = header->compression;
-
- count = vars->fileVars->fileExtents->getLength();
- if (count > sizeof(header->fileExtentMap))
- {
- header->fileExtentMapSize = count;
- count = sizeof(header->fileExtentMap);
- }
- else
- header->fileExtentMapSize = sizeof(header->fileExtentMap);
- bcopy(&fileExtents[0], &header->fileExtentMap[0], count);
-
- header->deviceBase = vars->fileVars->block0;
- header->deviceBlockSize = vars->fileVars->blockSize;
-
- IOPolledFileSeek(vars->fileVars, 0);
- err = IOHibernatePolledFileWrite(vars->fileVars,
- (uint8_t *) header, sizeof(IOHibernateImageHeader),
- cryptvars);
- if (kIOReturnSuccess != err)
- break;
- err = IOHibernatePolledFileWrite(vars->fileVars, 0, 0, cryptvars);
- }
- while (false);
-
- clock_get_uptime(&endTime);
-
- IOService::getPMRootDomain()->pmStatsRecordEvent(
- kIOPMStatsHibernateImageWrite | kIOPMStatsEventStopFlag, endTime);
-
- SUB_ABSOLUTETIME(&endTime, &allTime);
- absolutetime_to_nanoseconds(endTime, &nsec);
- HIBLOG("all time: %qd ms, ", nsec / 1000000ULL);
-
- absolutetime_to_nanoseconds(compTime, &nsec);
- HIBLOG("comp bytes: %qd time: %qd ms %qd Mb/s, ",
- compBytes,
- nsec / 1000000ULL,
- nsec ? (((compBytes * 1000000000ULL) / 1024 / 1024) / nsec) : 0);
-
- absolutetime_to_nanoseconds(vars->fileVars->cryptTime, &nsec);
- HIBLOG("crypt bytes: %qd time: %qd ms %qd Mb/s, ",
- vars->fileVars->cryptBytes,
- nsec / 1000000ULL,
- nsec ? (((vars->fileVars->cryptBytes * 1000000000ULL) / 1024 / 1024) / nsec) : 0);
-
- HIBLOG("\nimage %qd (%lld%%), uncompressed %qd (%d), compressed %qd (%d%%), sum1 %x, sum2 %x\n",
- header->imageSize, (header->imageSize * 100) / vars->fileVars->fileSize,
- uncompressedSize, atop_32(uncompressedSize), compressedSize,
- uncompressedSize ? ((int) ((compressedSize * 100ULL) / uncompressedSize)) : 0,
- sum1, sum2);
-
- HIBLOG("svPageCount %d, zvPageCount %d, wiredPagesEncrypted %d, wiredPagesClear %d, dirtyPagesEncrypted %d\n",
- svPageCount, zvPageCount, wiredPagesEncrypted, wiredPagesClear, dirtyPagesEncrypted);
-
- if (pollerOpen)
- IOPolledFilePollersClose(vars->fileVars, (kIOReturnSuccess == err) ? kIOPolledBeforeSleepState : kIOPolledBeforeSleepStateAborted );
-
- if (vars->consoleMapping)
- ProgressUpdate(gIOHibernateGraphicsInfo,
- vars->consoleMapping, 0, kIOHibernateProgressCount);
-
- HIBLOG("hibernate_write_image done(%x)\n", err);
-
- // should we come back via regular wake, set the state in memory.
- gIOHibernateState = kIOHibernateStateInactive;
+ // end wired image
+ header->encryptStart = vars->fileVars->encryptStart;
+ header->encryptEnd = vars->fileVars->encryptEnd;
+ image1Size = vars->fileVars->position;
+ HIBLOG("image1Size 0x%qx, encryptStart1 0x%qx, End1 0x%qx\n",
+ image1Size, header->encryptStart, header->encryptEnd);
+ }
+ }
+ if (kIOReturnSuccess != err) {
+ if (kIOReturnOverrun == err) {
+ // update actual compression ratio on not enough space (for retry)
+ gIOHibernateCompression = (compressedSize << 8) / uncompressedSize;
+ }
+
+ // update partial amount written (for IOPolledFileClose cleanup/unmap)
+ header->imageSize = vars->fileVars->position;
+ break;
+ }
+
+ // Header:
+
+ header->imageSize = vars->fileVars->position;
+ header->image1Size = image1Size;
+ header->bitmapSize = bitmap_size;
+ header->pageCount = pageCount;
+
+ header->restore1Sum = restore1Sum;
+ header->image1Sum = sum1;
+ header->image2Sum = sum2;
+ header->sleepTime = gIOLastSleepTime.tv_sec;
+
+ header->compression = (compressedSize << 8) / uncompressedSize;
+ gIOHibernateCompression = header->compression;
+
+ count = vars->fileVars->fileExtents->getLength();
+ if (count > sizeof(header->fileExtentMap)) {
+ header->fileExtentMapSize = count;
+ count = sizeof(header->fileExtentMap);
+ } else {
+ header->fileExtentMapSize = sizeof(header->fileExtentMap);
+ }
+ bcopy(&fileExtents[0], &header->fileExtentMap[0], count);
+
+ header->deviceBase = vars->fileVars->block0;
+ header->deviceBlockSize = vars->fileVars->blockSize;
+
+ IOPolledFileSeek(vars->fileVars, 0);
+ err = IOHibernatePolledFileWrite(vars->fileVars,
+ (uint8_t *) header, sizeof(IOHibernateImageHeader),
+ cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+ err = IOHibernatePolledFileWrite(vars->fileVars, NULL, 0, cryptvars);
+ }while (false);
+
+ clock_get_uptime(&endTime);
+
+ IOService::getPMRootDomain()->pmStatsRecordEvent(
+ kIOPMStatsHibernateImageWrite | kIOPMStatsEventStopFlag, endTime);
+
+ SUB_ABSOLUTETIME(&endTime, &allTime);
+ absolutetime_to_nanoseconds(endTime, &nsec);
+ HIBLOG("all time: %qd ms, ", nsec / 1000000ULL);
+
+ absolutetime_to_nanoseconds(compTime, &nsec);
+ HIBLOG("comp bytes: %qd time: %qd ms %qd Mb/s, ",
+ compBytes,
+ nsec / 1000000ULL,
+ nsec ? (((compBytes * 1000000000ULL) / 1024 / 1024) / nsec) : 0);
+
+ absolutetime_to_nanoseconds(vars->fileVars->cryptTime, &nsec);
+ HIBLOG("crypt bytes: %qd time: %qd ms %qd Mb/s, ",
+ vars->fileVars->cryptBytes,
+ nsec / 1000000ULL,
+ nsec ? (((vars->fileVars->cryptBytes * 1000000000ULL) / 1024 / 1024) / nsec) : 0);
+
+ HIBLOG("\nimage %qd (%lld%%), uncompressed %qd (%d), compressed %qd (%d%%), sum1 %x, sum2 %x\n",
+ header->imageSize, (header->imageSize * 100) / vars->fileVars->fileSize,
+ uncompressedSize, atop_32(uncompressedSize), compressedSize,
+ uncompressedSize ? ((int) ((compressedSize * 100ULL) / uncompressedSize)) : 0,
+ sum1, sum2);
+
+ HIBLOG("svPageCount %d, zvPageCount %d, wiredPagesEncrypted %d, wiredPagesClear %d, dirtyPagesEncrypted %d\n",
+ svPageCount, zvPageCount, wiredPagesEncrypted, wiredPagesClear, dirtyPagesEncrypted);
+
+ if (pollerOpen) {
+ IOPolledFilePollersClose(vars->fileVars, (kIOReturnSuccess == err) ? kIOPolledBeforeSleepState : kIOPolledBeforeSleepStateAborted );
+ }
+
+ if (vars->consoleMapping) {
+ ProgressUpdate(gIOHibernateGraphicsInfo,
+ vars->consoleMapping, 0, kIOHibernateProgressCount);
+ }
+
+ HIBLOG("hibernate_write_image done(%x)\n", err);
+
+ // should we come back via regular wake, set the state in memory.
+ gIOHibernateState = kIOHibernateStateInactive;
KDBG(IOKDBG_CODE(DBG_HIBERNATE, 1) | DBG_FUNC_END, wiredPagesEncrypted,
- wiredPagesClear, dirtyPagesEncrypted);
-
- if (kIOReturnSuccess == err)
- {
- if (kIOHibernateModeSleep & gIOHibernateMode)
- {
- return (kIOHibernatePostWriteSleep);
- }
- else if(kIOHibernateModeRestart & gIOHibernateMode)
- {
- return (kIOHibernatePostWriteRestart);
- }
- else
- {
- /* by default, power down */
- return (kIOHibernatePostWriteHalt);
- }
- }
- else if (kIOReturnAborted == err)
- {
- return (kIOHibernatePostWriteWake);
- }
- else
- {
- /* on error, sleep */
- return (kIOHibernatePostWriteSleep);
- }
+ wiredPagesClear, dirtyPagesEncrypted);
+
+ if (kIOReturnSuccess == err) {
+ if (kIOHibernateModeSleep & gIOHibernateMode) {
+ return kIOHibernatePostWriteSleep;
+ } else if (kIOHibernateModeRestart & gIOHibernateMode) {
+ return kIOHibernatePostWriteRestart;
+ } else {
+ /* by default, power down */
+ return kIOHibernatePostWriteHalt;
+ }
+ } else if (kIOReturnAborted == err) {
+ return kIOHibernatePostWriteWake;
+ } else {
+ /* on error, sleep */
+ return kIOHibernatePostWriteSleep;
+ }
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
extern "C" void
hibernate_machine_init(void)
{
- IOReturn err;
- uint32_t sum;
- uint32_t pagesDone;
- uint32_t pagesRead = 0;
- AbsoluteTime startTime, compTime;
- AbsoluteTime allTime, endTime;
- AbsoluteTime startIOTime, endIOTime;
- uint64_t nsec, nsecIO;
- uint64_t compBytes;
- uint32_t lastProgressStamp = 0;
- uint32_t progressStamp;
- IOPolledFileCryptVars * cryptvars = 0;
-
- IOHibernateVars * vars = &gIOHibernateVars;
- bzero(gIOHibernateStats, sizeof(hibernate_statistics_t));
-
- if (!vars->fileVars || !vars->fileVars->pollers)
- return;
-
- sum = gIOHibernateCurrentHeader->actualImage1Sum;
- pagesDone = gIOHibernateCurrentHeader->actualUncompressedPages;
-
- if (kIOHibernateStateWakingFromHibernate != gIOHibernateState)
- {
- HIBLOG("regular wake\n");
- return;
- }
-
- HIBPRINT("diag %x %x %x %x\n",
+ IOReturn err;
+ uint32_t sum;
+ uint32_t pagesDone;
+ uint32_t pagesRead = 0;
+ AbsoluteTime startTime, compTime;
+ AbsoluteTime allTime, endTime;
+ AbsoluteTime startIOTime, endIOTime;
+ uint64_t nsec, nsecIO;
+ uint64_t compBytes;
+ uint32_t lastProgressStamp = 0;
+ uint32_t progressStamp;
+ IOPolledFileCryptVars * cryptvars = NULL;
+
+ IOHibernateVars * vars = &gIOHibernateVars;
+ bzero(gIOHibernateStats, sizeof(hibernate_statistics_t));
+
+ if (!vars->fileVars || !vars->fileVars->pollers) {
+ return;
+ }
+
+ sum = gIOHibernateCurrentHeader->actualImage1Sum;
+ pagesDone = gIOHibernateCurrentHeader->actualUncompressedPages;
+
+ if (kIOHibernateStateWakingFromHibernate != gIOHibernateState) {
+ HIBLOG("regular wake\n");
+ return;
+ }
+
+ HIBPRINT("diag %x %x %x %x\n",
gIOHibernateCurrentHeader->diag[0], gIOHibernateCurrentHeader->diag[1],
gIOHibernateCurrentHeader->diag[2], gIOHibernateCurrentHeader->diag[3]);
-#define t40ms(x) (tmrCvt((((uint64_t)(x)) << 8), tscFCvtt2n) / 1000000)
-#define tStat(x, y) gIOHibernateStats->x = t40ms(gIOHibernateCurrentHeader->y);
- tStat(booterStart, booterStart);
- gIOHibernateStats->smcStart = gIOHibernateCurrentHeader->smcStart;
- tStat(booterDuration0, booterTime0);
- tStat(booterDuration1, booterTime1);
- tStat(booterDuration2, booterTime2);
- tStat(booterDuration, booterTime);
- tStat(booterConnectDisplayDuration, connectDisplayTime);
- tStat(booterSplashDuration, splashTime);
- tStat(trampolineDuration, trampolineTime);
-
- gIOHibernateStats->image1Size = gIOHibernateCurrentHeader->image1Size;
- gIOHibernateStats->imageSize = gIOHibernateCurrentHeader->imageSize;
- gIOHibernateStats->image1Pages = pagesDone;
+#define t40ms(x) (tmrCvt((((uint64_t)(x)) << 8), tscFCvtt2n) / 1000000)
+#define tStat(x, y) gIOHibernateStats->x = t40ms(gIOHibernateCurrentHeader->y);
+ tStat(booterStart, booterStart);
+ gIOHibernateStats->smcStart = gIOHibernateCurrentHeader->smcStart;
+ tStat(booterDuration0, booterTime0);
+ tStat(booterDuration1, booterTime1);
+ tStat(booterDuration2, booterTime2);
+ tStat(booterDuration, booterTime);
+ tStat(booterConnectDisplayDuration, connectDisplayTime);
+ tStat(booterSplashDuration, splashTime);
+ tStat(trampolineDuration, trampolineTime);
+
+ gIOHibernateStats->image1Size = gIOHibernateCurrentHeader->image1Size;
+ gIOHibernateStats->imageSize = gIOHibernateCurrentHeader->imageSize;
+ gIOHibernateStats->image1Pages = pagesDone;
/* HIBERNATE_stats */
KDBG(IOKDBG_CODE(DBG_HIBERNATE, 14), gIOHibernateStats->smcStart,
- gIOHibernateStats->booterStart, gIOHibernateStats->booterDuration,
- gIOHibernateStats->trampolineDuration);
-
- HIBLOG("booter start at %d ms smc %d ms, [%d, %d, %d] total %d ms, dsply %d, %d ms, tramp %d ms\n",
- gIOHibernateStats->booterStart,
- gIOHibernateStats->smcStart,
- gIOHibernateStats->booterDuration0,
- gIOHibernateStats->booterDuration1,
- gIOHibernateStats->booterDuration2,
- gIOHibernateStats->booterDuration,
- gIOHibernateStats->booterConnectDisplayDuration,
- gIOHibernateStats->booterSplashDuration,
- gIOHibernateStats->trampolineDuration);
-
- HIBLOG("hibernate_machine_init: state %d, image pages %d, sum was %x, imageSize 0x%qx, image1Size 0x%qx, conflictCount %d, nextFree %x\n",
+ gIOHibernateStats->booterStart, gIOHibernateStats->booterDuration,
+ gIOHibernateStats->trampolineDuration);
+
+ HIBLOG("booter start at %d ms smc %d ms, [%d, %d, %d] total %d ms, dsply %d, %d ms, tramp %d ms\n",
+ gIOHibernateStats->booterStart,
+ gIOHibernateStats->smcStart,
+ gIOHibernateStats->booterDuration0,
+ gIOHibernateStats->booterDuration1,
+ gIOHibernateStats->booterDuration2,
+ gIOHibernateStats->booterDuration,
+ gIOHibernateStats->booterConnectDisplayDuration,
+ gIOHibernateStats->booterSplashDuration,
+ gIOHibernateStats->trampolineDuration);
+
+ HIBLOG("hibernate_machine_init: state %d, image pages %d, sum was %x, imageSize 0x%qx, image1Size 0x%qx, conflictCount %d, nextFree %x\n",
gIOHibernateState, pagesDone, sum, gIOHibernateStats->imageSize, gIOHibernateStats->image1Size,
gIOHibernateCurrentHeader->conflictCount, gIOHibernateCurrentHeader->nextFree);
- if ((0 != (kIOHibernateModeSleep & gIOHibernateMode))
- && (0 != ((kIOHibernateModeDiscardCleanActive | kIOHibernateModeDiscardCleanInactive) & gIOHibernateMode)))
- {
- hibernate_page_list_discard(vars->page_list);
- }
+ if ((0 != (kIOHibernateModeSleep & gIOHibernateMode))
+ && (0 != ((kIOHibernateModeDiscardCleanActive | kIOHibernateModeDiscardCleanInactive) & gIOHibernateMode))) {
+ hibernate_page_list_discard(vars->page_list);
+ }
- cryptvars = (kIOHibernateModeEncrypt & gIOHibernateMode) ? &gIOHibernateCryptWakeContext : 0;
+ cryptvars = (kIOHibernateModeEncrypt & gIOHibernateMode) ? &gIOHibernateCryptWakeContext : NULL;
- if (gIOHibernateCurrentHeader->handoffPageCount > gIOHibernateHandoffPageCount)
- panic("handoff overflow");
+ if (gIOHibernateCurrentHeader->handoffPageCount > gIOHibernateHandoffPageCount) {
+ panic("handoff overflow");
+ }
- IOHibernateHandoff * handoff;
- bool done = false;
- bool foundCryptData = false;
- bool foundVolumeEncryptData = false;
+ IOHibernateHandoff * handoff;
+ bool done = false;
+ bool foundCryptData = false;
+ bool foundVolumeEncryptData = false;
- for (handoff = (IOHibernateHandoff *) vars->handoffBuffer->getBytesNoCopy();
- !done;
- handoff = (IOHibernateHandoff *) &handoff->data[handoff->bytecount])
- {
+ for (handoff = (IOHibernateHandoff *) vars->handoffBuffer->getBytesNoCopy();
+ !done;
+ handoff = (IOHibernateHandoff *) &handoff->data[handoff->bytecount]) {
// HIBPRINT("handoff %p, %x, %x\n", handoff, handoff->type, handoff->bytecount);
- uint8_t * data = &handoff->data[0];
- switch (handoff->type)
- {
- case kIOHibernateHandoffTypeEnd:
- done = true;
- break;
+ uint8_t * data = &handoff->data[0];
+ switch (handoff->type) {
+ case kIOHibernateHandoffTypeEnd:
+ done = true;
+ break;
- case kIOHibernateHandoffTypeGraphicsInfo:
- if (handoff->bytecount == sizeof(*gIOHibernateGraphicsInfo))
- {
- bcopy(data, gIOHibernateGraphicsInfo, sizeof(*gIOHibernateGraphicsInfo));
- }
- break;
+ case kIOHibernateHandoffTypeGraphicsInfo:
+ if (handoff->bytecount == sizeof(*gIOHibernateGraphicsInfo)) {
+ bcopy(data, gIOHibernateGraphicsInfo, sizeof(*gIOHibernateGraphicsInfo));
+ }
+ break;
- case kIOHibernateHandoffTypeCryptVars:
- if (cryptvars)
- {
- hibernate_cryptwakevars_t *
- wakevars = (hibernate_cryptwakevars_t *) &handoff->data[0];
- bcopy(&wakevars->aes_iv[0], &cryptvars->aes_iv[0], sizeof(cryptvars->aes_iv));
- }
- foundCryptData = true;
- bzero(data, handoff->bytecount);
- break;
+ case kIOHibernateHandoffTypeCryptVars:
+ if (cryptvars) {
+ hibernate_cryptwakevars_t *
+ wakevars = (hibernate_cryptwakevars_t *) &handoff->data[0];
+ bcopy(&wakevars->aes_iv[0], &cryptvars->aes_iv[0], sizeof(cryptvars->aes_iv));
+ }
+ foundCryptData = true;
+ bzero(data, handoff->bytecount);
+ break;
- case kIOHibernateHandoffTypeVolumeCryptKey:
- if (handoff->bytecount == vars->volumeCryptKeySize)
- {
- bcopy(data, &vars->volumeCryptKey[0], vars->volumeCryptKeySize);
- foundVolumeEncryptData = true;
- }
- else panic("kIOHibernateHandoffTypeVolumeCryptKey(%d)", handoff->bytecount);
- break;
+ case kIOHibernateHandoffTypeVolumeCryptKey:
+ if (handoff->bytecount == vars->volumeCryptKeySize) {
+ bcopy(data, &vars->volumeCryptKey[0], vars->volumeCryptKeySize);
+ foundVolumeEncryptData = true;
+ } else {
+ panic("kIOHibernateHandoffTypeVolumeCryptKey(%d)", handoff->bytecount);
+ }
+ break;
- case kIOHibernateHandoffTypeMemoryMap:
+ case kIOHibernateHandoffTypeMemoryMap:
- clock_get_uptime(&allTime);
+ clock_get_uptime(&allTime);
- hibernate_newruntime_map(data, handoff->bytecount,
- gIOHibernateCurrentHeader->systemTableOffset);
+ hibernate_newruntime_map(data, handoff->bytecount,
+ gIOHibernateCurrentHeader->systemTableOffset);
- clock_get_uptime(&endTime);
+ clock_get_uptime(&endTime);
- SUB_ABSOLUTETIME(&endTime, &allTime);
- absolutetime_to_nanoseconds(endTime, &nsec);
+ SUB_ABSOLUTETIME(&endTime, &allTime);
+ absolutetime_to_nanoseconds(endTime, &nsec);
- HIBLOG("hibernate_newruntime_map time: %qd ms, ", nsec / 1000000ULL);
+ HIBLOG("hibernate_newruntime_map time: %qd ms, ", nsec / 1000000ULL);
- break;
+ break;
- case kIOHibernateHandoffTypeDeviceTree:
+ case kIOHibernateHandoffTypeDeviceTree:
{
// DTEntry chosen = NULL;
// HIBPRINT("DTLookupEntry %d\n", DTLookupEntry((const DTEntry) data, "/chosen", &chosen));
}
- break;
+ break;
- default:
- done = (kIOHibernateHandoffType != (handoff->type & 0xFFFF0000));
- break;
+ default:
+ done = (kIOHibernateHandoffType != (handoff->type & 0xFFFF0000));
+ break;
+ }
}
- }
- if (vars->hwEncrypt && !foundVolumeEncryptData)
- panic("no volumeCryptKey");
- else if (cryptvars && !foundCryptData)
- panic("hibernate handoff");
+ if (vars->hwEncrypt && !foundVolumeEncryptData) {
+ panic("no volumeCryptKey");
+ } else if (cryptvars && !foundCryptData) {
+ panic("hibernate handoff");
+ }
- HIBPRINT("video 0x%llx %d %d %d status %x\n",
+ HIBPRINT("video 0x%llx %d %d %d status %x\n",
gIOHibernateGraphicsInfo->physicalAddress, gIOHibernateGraphicsInfo->depth,
gIOHibernateGraphicsInfo->width, gIOHibernateGraphicsInfo->height, gIOHibernateGraphicsInfo->gfxStatus);
- if (vars->videoMapping && gIOHibernateGraphicsInfo->physicalAddress)
- {
- vars->videoMapSize = round_page(gIOHibernateGraphicsInfo->height
- * gIOHibernateGraphicsInfo->rowBytes);
- if (vars->videoMapSize > vars->videoAllocSize) vars->videoMapSize = 0;
- else
- {
- IOMapPages(kernel_map,
- vars->videoMapping, gIOHibernateGraphicsInfo->physicalAddress,
- vars->videoMapSize, kIOMapInhibitCache );
- }
- }
-
- if (vars->videoMapSize)
- ProgressUpdate(gIOHibernateGraphicsInfo,
- (uint8_t *) vars->videoMapping, 0, kIOHibernateProgressCount);
-
- uint8_t * src = (uint8_t *) vars->srcBuffer->getBytesNoCopy();
- uint8_t * compressed = src + page_size;
- uint8_t * scratch = compressed + page_size;
- uint32_t decoOffset;
-
- clock_get_uptime(&allTime);
- AbsoluteTime_to_scalar(&compTime) = 0;
- compBytes = 0;
-
- HIBLOG("IOPolledFilePollersOpen(), ml_get_interrupts_enabled %d\n", ml_get_interrupts_enabled());
- err = IOPolledFilePollersOpen(vars->fileVars, kIOPolledAfterSleepState, false);
- clock_get_uptime(&startIOTime);
- endTime = startIOTime;
- SUB_ABSOLUTETIME(&endTime, &allTime);
- absolutetime_to_nanoseconds(endTime, &nsec);
- HIBLOG("IOPolledFilePollersOpen(%x) %qd ms\n", err, nsec / 1000000ULL);
-
- if (vars->hwEncrypt)
- {
- err = IOPolledFilePollersSetEncryptionKey(vars->fileVars,
- &vars->volumeCryptKey[0], vars->volumeCryptKeySize);
- HIBLOG("IOPolledFilePollersSetEncryptionKey(%x)\n", err);
- if (kIOReturnSuccess != err) panic("IOPolledFilePollersSetEncryptionKey(0x%x)", err);
- }
-
- IOPolledFileSeek(vars->fileVars, gIOHibernateCurrentHeader->image1Size);
-
- // kick off the read ahead
- vars->fileVars->bufferHalf = 0;
- vars->fileVars->bufferLimit = 0;
- vars->fileVars->lastRead = 0;
- vars->fileVars->readEnd = gIOHibernateCurrentHeader->imageSize;
- vars->fileVars->bufferOffset = vars->fileVars->bufferLimit;
- vars->fileVars->cryptBytes = 0;
- AbsoluteTime_to_scalar(&vars->fileVars->cryptTime) = 0;
-
- err = IOPolledFileRead(vars->fileVars, 0, 0, cryptvars);
- vars->fileVars->bufferOffset = vars->fileVars->bufferLimit;
- // --
-
- HIBLOG("hibernate_machine_init reading\n");
-
- uint32_t * header = (uint32_t *) src;
- sum = 0;
-
- while (kIOReturnSuccess == err)
- {
- unsigned int count;
- unsigned int page;
- uint32_t tag;
- vm_offset_t ppnum, compressedSize;
-
- err = IOPolledFileRead(vars->fileVars, src, 8, cryptvars);
- if (kIOReturnSuccess != err)
- break;
-
- ppnum = header[0];
- count = header[1];
+ if (vars->videoMapping && gIOHibernateGraphicsInfo->physicalAddress) {
+ vars->videoMapSize = round_page(gIOHibernateGraphicsInfo->height
+ * gIOHibernateGraphicsInfo->rowBytes);
+ if (vars->videoMapSize > vars->videoAllocSize) {
+ vars->videoMapSize = 0;
+ } else {
+ IOMapPages(kernel_map,
+ vars->videoMapping, gIOHibernateGraphicsInfo->physicalAddress,
+ vars->videoMapSize, kIOMapInhibitCache );
+ }
+ }
-// HIBPRINT("(%x, %x)\n", ppnum, count);
+ if (vars->videoMapSize) {
+ ProgressUpdate(gIOHibernateGraphicsInfo,
+ (uint8_t *) vars->videoMapping, 0, kIOHibernateProgressCount);
+ }
- if (!count)
- break;
+ uint8_t * src = (uint8_t *) vars->srcBuffer->getBytesNoCopy();
+ uint8_t * compressed = src + page_size;
+ uint8_t * scratch = compressed + page_size;
+ uint32_t decoOffset;
+
+ clock_get_uptime(&allTime);
+ AbsoluteTime_to_scalar(&compTime) = 0;
+ compBytes = 0;
+
+ HIBLOG("IOPolledFilePollersOpen(), ml_get_interrupts_enabled %d\n", ml_get_interrupts_enabled());
+ err = IOPolledFilePollersOpen(vars->fileVars, kIOPolledAfterSleepState, false);
+ clock_get_uptime(&startIOTime);
+ endTime = startIOTime;
+ SUB_ABSOLUTETIME(&endTime, &allTime);
+ absolutetime_to_nanoseconds(endTime, &nsec);
+ HIBLOG("IOPolledFilePollersOpen(%x) %qd ms\n", err, nsec / 1000000ULL);
+
+ if (vars->hwEncrypt) {
+ err = IOPolledFilePollersSetEncryptionKey(vars->fileVars,
+ &vars->volumeCryptKey[0], vars->volumeCryptKeySize);
+ HIBLOG("IOPolledFilePollersSetEncryptionKey(%x) %ld\n", err, vars->volumeCryptKeySize);
+ if (kIOReturnSuccess != err) {
+ panic("IOPolledFilePollersSetEncryptionKey(0x%x)", err);
+ }
+ cryptvars = NULL;
+ }
- for (page = 0; page < count; page++)
- {
- err = IOPolledFileRead(vars->fileVars, (uint8_t *) &tag, 4, cryptvars);
- if (kIOReturnSuccess != err)
- break;
+ IOPolledFileSeek(vars->fileVars, gIOHibernateCurrentHeader->image1Size);
- compressedSize = kIOHibernateTagLength & tag;
- if (kIOHibernateTagSignature != (tag & ~kIOHibernateTagLength))
- {
- err = kIOReturnIPCError;
- break;
- }
+ // kick off the read ahead
+ vars->fileVars->bufferHalf = 0;
+ vars->fileVars->bufferLimit = 0;
+ vars->fileVars->lastRead = 0;
+ vars->fileVars->readEnd = gIOHibernateCurrentHeader->imageSize;
+ vars->fileVars->bufferOffset = vars->fileVars->bufferLimit;
+ vars->fileVars->cryptBytes = 0;
+ AbsoluteTime_to_scalar(&vars->fileVars->cryptTime) = 0;
- err = IOPolledFileRead(vars->fileVars, src, (compressedSize + 3) & ~3, cryptvars);
- if (kIOReturnSuccess != err) break;
+ err = IOPolledFileRead(vars->fileVars, NULL, 0, cryptvars);
+ vars->fileVars->bufferOffset = vars->fileVars->bufferLimit;
+ // --
- if (compressedSize < page_size)
- {
- decoOffset = page_size;
- clock_get_uptime(&startTime);
+ HIBLOG("hibernate_machine_init reading\n");
- if (compressedSize == 4) {
- int i;
- uint32_t *s, *d;
+ uint32_t * header = (uint32_t *) src;
+ sum = 0;
- s = (uint32_t *)src;
- d = (uint32_t *)(uintptr_t)compressed;
+ while (kIOReturnSuccess == err) {
+ unsigned int count;
+ unsigned int page;
+ uint32_t tag;
+ vm_offset_t ppnum, compressedSize;
- for (i = 0; i < (int)(PAGE_SIZE / sizeof(int32_t)); i++)
- *d++ = *s;
+ err = IOPolledFileRead(vars->fileVars, src, 8, cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
}
- else
- WKdm_decompress_new((WK_word*) src, (WK_word*) compressed, (WK_word*) scratch, compressedSize);
- clock_get_uptime(&endTime);
- ADD_ABSOLUTETIME(&compTime, &endTime);
- SUB_ABSOLUTETIME(&compTime, &startTime);
- compBytes += page_size;
- }
- else decoOffset = 0;
-
- sum += hibernate_sum_page((src + decoOffset), ppnum);
- err = IOMemoryDescriptorReadToPhysical(vars->srcBuffer, decoOffset, ptoa_64(ppnum), page_size);
- if (err)
- {
- HIBLOG("IOMemoryDescriptorReadToPhysical [%ld] %x\n", (long)ppnum, err);
- break;
- }
-
- ppnum++;
- pagesDone++;
- pagesRead++;
-
- if (0 == (8191 & pagesDone))
- {
- clock_get_uptime(&endTime);
- SUB_ABSOLUTETIME(&endTime, &allTime);
- absolutetime_to_nanoseconds(endTime, &nsec);
- progressStamp = nsec / 750000000ULL;
- if (progressStamp != lastProgressStamp)
- {
- lastProgressStamp = progressStamp;
- HIBPRINT("pages %d (%d%%)\n", pagesDone,
- (100 * pagesDone) / gIOHibernateCurrentHeader->pageCount);
+
+ ppnum = header[0];
+ count = header[1];
+
+// HIBPRINT("(%x, %x)\n", ppnum, count);
+
+ if (!count) {
+ break;
}
- }
+
+ for (page = 0; page < count; page++) {
+ err = IOPolledFileRead(vars->fileVars, (uint8_t *) &tag, 4, cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+
+ compressedSize = kIOHibernateTagLength & tag;
+ if (kIOHibernateTagSignature != (tag & ~kIOHibernateTagLength)) {
+ err = kIOReturnIPCError;
+ break;
+ }
+
+ err = IOPolledFileRead(vars->fileVars, src, (compressedSize + 3) & ~3, cryptvars);
+ if (kIOReturnSuccess != err) {
+ break;
+ }
+
+ if (compressedSize < page_size) {
+ decoOffset = page_size;
+ clock_get_uptime(&startTime);
+
+ if (compressedSize == 4) {
+ int i;
+ uint32_t *s, *d;
+
+ s = (uint32_t *)src;
+ d = (uint32_t *)(uintptr_t)compressed;
+
+ for (i = 0; i < (int)(PAGE_SIZE / sizeof(int32_t)); i++) {
+ *d++ = *s;
+ }
+ } else {
+ WKdm_decompress_new((WK_word*) src, (WK_word*) compressed, (WK_word*) scratch, compressedSize);
+ }
+ clock_get_uptime(&endTime);
+ ADD_ABSOLUTETIME(&compTime, &endTime);
+ SUB_ABSOLUTETIME(&compTime, &startTime);
+ compBytes += page_size;
+ } else {
+ decoOffset = 0;
+ }
+
+ sum += hibernate_sum_page((src + decoOffset), ppnum);
+ err = IOMemoryDescriptorReadToPhysical(vars->srcBuffer, decoOffset, ptoa_64(ppnum), page_size);
+ if (err) {
+ HIBLOG("IOMemoryDescriptorReadToPhysical [%ld] %x\n", (long)ppnum, err);
+ break;
+ }
+
+ ppnum++;
+ pagesDone++;
+ pagesRead++;
+
+ if (0 == (8191 & pagesDone)) {
+ clock_get_uptime(&endTime);
+ SUB_ABSOLUTETIME(&endTime, &allTime);
+ absolutetime_to_nanoseconds(endTime, &nsec);
+ progressStamp = nsec / 750000000ULL;
+ if (progressStamp != lastProgressStamp) {
+ lastProgressStamp = progressStamp;
+ HIBPRINT("pages %d (%d%%)\n", pagesDone,
+ (100 * pagesDone) / gIOHibernateCurrentHeader->pageCount);
+ }
+ }
+ }
+ }
+ if ((kIOReturnSuccess == err) && (pagesDone == gIOHibernateCurrentHeader->actualUncompressedPages)) {
+ err = kIOReturnLockedRead;
}
- }
- if ((kIOReturnSuccess == err) && (pagesDone == gIOHibernateCurrentHeader->actualUncompressedPages))
- err = kIOReturnLockedRead;
- if (kIOReturnSuccess != err)
- panic("Hibernate restore error %x", err);
+ if (kIOReturnSuccess != err) {
+ panic("Hibernate restore error %x", err);
+ }
- gIOHibernateCurrentHeader->actualImage2Sum = sum;
- gIOHibernateCompression = gIOHibernateCurrentHeader->compression;
+ gIOHibernateCurrentHeader->actualImage2Sum = sum;
+ gIOHibernateCompression = gIOHibernateCurrentHeader->compression;
- clock_get_uptime(&endIOTime);
+ clock_get_uptime(&endIOTime);
- err = IOPolledFilePollersClose(vars->fileVars, kIOPolledAfterSleepState);
+ err = IOPolledFilePollersClose(vars->fileVars, kIOPolledAfterSleepState);
- clock_get_uptime(&endTime);
+ clock_get_uptime(&endTime);
- IOService::getPMRootDomain()->pmStatsRecordEvent(
- kIOPMStatsHibernateImageRead | kIOPMStatsEventStartFlag, allTime);
- IOService::getPMRootDomain()->pmStatsRecordEvent(
- kIOPMStatsHibernateImageRead | kIOPMStatsEventStopFlag, endTime);
+ IOService::getPMRootDomain()->pmStatsRecordEvent(
+ kIOPMStatsHibernateImageRead | kIOPMStatsEventStartFlag, allTime);
+ IOService::getPMRootDomain()->pmStatsRecordEvent(
+ kIOPMStatsHibernateImageRead | kIOPMStatsEventStopFlag, endTime);
- SUB_ABSOLUTETIME(&endTime, &allTime);
- absolutetime_to_nanoseconds(endTime, &nsec);
+ SUB_ABSOLUTETIME(&endTime, &allTime);
+ absolutetime_to_nanoseconds(endTime, &nsec);
- SUB_ABSOLUTETIME(&endIOTime, &startIOTime);
- absolutetime_to_nanoseconds(endIOTime, &nsecIO);
+ SUB_ABSOLUTETIME(&endIOTime, &startIOTime);
+ absolutetime_to_nanoseconds(endIOTime, &nsecIO);
- gIOHibernateStats->kernelImageReadDuration = nsec / 1000000ULL;
- gIOHibernateStats->imagePages = pagesDone;
+ gIOHibernateStats->kernelImageReadDuration = nsec / 1000000ULL;
+ gIOHibernateStats->imagePages = pagesDone;
- HIBLOG("hibernate_machine_init pagesDone %d sum2 %x, time: %d ms, disk(0x%x) %qd Mb/s, ",
- pagesDone, sum, gIOHibernateStats->kernelImageReadDuration, kDefaultIOSize,
- nsecIO ? ((((gIOHibernateCurrentHeader->imageSize - gIOHibernateCurrentHeader->image1Size) * 1000000000ULL) / 1024 / 1024) / nsecIO) : 0);
+ HIBLOG("hibernate_machine_init pagesDone %d sum2 %x, time: %d ms, disk(0x%x) %qd Mb/s, ",
+ pagesDone, sum, gIOHibernateStats->kernelImageReadDuration, kDefaultIOSize,
+ nsecIO ? ((((gIOHibernateCurrentHeader->imageSize - gIOHibernateCurrentHeader->image1Size) * 1000000000ULL) / 1024 / 1024) / nsecIO) : 0);
- absolutetime_to_nanoseconds(compTime, &nsec);
- HIBLOG("comp bytes: %qd time: %qd ms %qd Mb/s, ",
- compBytes,
- nsec / 1000000ULL,
- nsec ? (((compBytes * 1000000000ULL) / 1024 / 1024) / nsec) : 0);
+ absolutetime_to_nanoseconds(compTime, &nsec);
+ HIBLOG("comp bytes: %qd time: %qd ms %qd Mb/s, ",
+ compBytes,
+ nsec / 1000000ULL,
+ nsec ? (((compBytes * 1000000000ULL) / 1024 / 1024) / nsec) : 0);
- absolutetime_to_nanoseconds(vars->fileVars->cryptTime, &nsec);
- HIBLOG("crypt bytes: %qd time: %qd ms %qd Mb/s\n",
- vars->fileVars->cryptBytes,
- nsec / 1000000ULL,
- nsec ? (((vars->fileVars->cryptBytes * 1000000000ULL) / 1024 / 1024) / nsec) : 0);
+ absolutetime_to_nanoseconds(vars->fileVars->cryptTime, &nsec);
+ HIBLOG("crypt bytes: %qd time: %qd ms %qd Mb/s\n",
+ vars->fileVars->cryptBytes,
+ nsec / 1000000ULL,
+ nsec ? (((vars->fileVars->cryptBytes * 1000000000ULL) / 1024 / 1024) / nsec) : 0);
- KDBG(IOKDBG_CODE(DBG_HIBERNATE, 2), pagesRead, pagesDone);
+ KDBG(IOKDBG_CODE(DBG_HIBERNATE, 2), pagesRead, pagesDone);
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-void IOHibernateSetWakeCapabilities(uint32_t capability)
+void
+IOHibernateSetWakeCapabilities(uint32_t capability)
{
- if (kIOHibernateStateWakingFromHibernate == gIOHibernateState)
- {
- gIOHibernateStats->wakeCapability = capability;
+ if (kIOHibernateStateWakingFromHibernate == gIOHibernateState) {
+ gIOHibernateStats->wakeCapability = capability;
- if (kIOPMSystemCapabilityGraphics & capability)
- {
- vm_compressor_do_warmup();
+ if (kIOPMSystemCapabilityGraphics & capability) {
+ vm_compressor_do_warmup();
+ }
}
- }
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-void IOHibernateSystemRestart(void)
+void
+IOHibernateSystemRestart(void)
{
- static uint8_t noteStore[32] __attribute__((aligned(32)));
- IORegistryEntry * regEntry;
- const OSSymbol * sym;
- OSData * noteProp;
- OSData * data;
- uintptr_t * smcVars;
- uint8_t * smcBytes;
- size_t len;
- addr64_t element;
-
- data = OSDynamicCast(OSData, IOService::getPMRootDomain()->getProperty(kIOHibernateSMCVariablesKey));
- if (!data) return;
-
- smcVars = (typeof(smcVars)) data->getBytesNoCopy();
- smcBytes = (typeof(smcBytes)) smcVars[1];
- len = smcVars[0];
- if (len > sizeof(noteStore)) len = sizeof(noteStore);
- noteProp = OSData::withCapacity(3 * sizeof(element));
- if (!noteProp) return;
- element = len;
- noteProp->appendBytes(&element, sizeof(element));
- element = crc32(0, smcBytes, len);
- noteProp->appendBytes(&element, sizeof(element));
-
- bcopy(smcBytes, noteStore, len);
- element = (addr64_t) ¬eStore[0];
- element = (element & page_mask) | ptoa_64(pmap_find_phys(kernel_pmap, element));
- noteProp->appendBytes(&element, sizeof(element));
-
- if (!gIOOptionsEntry)
- {
- regEntry = IORegistryEntry::fromPath("/options", gIODTPlane);
- gIOOptionsEntry = OSDynamicCast(IODTNVRAM, regEntry);
- if (regEntry && !gIOOptionsEntry)
- regEntry->release();
- }
-
- sym = OSSymbol::withCStringNoCopy(kIOHibernateBootNoteKey);
- if (gIOOptionsEntry && sym) gIOOptionsEntry->setProperty(sym, noteProp);
- if (noteProp) noteProp->release();
- if (sym) sym->release();
+ static uint8_t noteStore[32] __attribute__((aligned(32)));
+ IORegistryEntry * regEntry;
+ const OSSymbol * sym;
+ OSData * noteProp;
+ OSData * data;
+ uintptr_t * smcVars;
+ uint8_t * smcBytes;
+ size_t len;
+ addr64_t element;
+
+ data = OSDynamicCast(OSData, IOService::getPMRootDomain()->getProperty(kIOHibernateSMCVariablesKey));
+ if (!data) {
+ return;
+ }
+
+ smcVars = (typeof(smcVars))data->getBytesNoCopy();
+ smcBytes = (typeof(smcBytes))smcVars[1];
+ len = smcVars[0];
+ if (len > sizeof(noteStore)) {
+ len = sizeof(noteStore);
+ }
+ noteProp = OSData::withCapacity(3 * sizeof(element));
+ if (!noteProp) {
+ return;
+ }
+ element = len;
+ noteProp->appendBytes(&element, sizeof(element));
+ element = crc32(0, smcBytes, len);
+ noteProp->appendBytes(&element, sizeof(element));
+
+ bcopy(smcBytes, noteStore, len);
+ element = (addr64_t) ¬eStore[0];
+ element = (element & page_mask) | ptoa_64(pmap_find_phys(kernel_pmap, element));
+ noteProp->appendBytes(&element, sizeof(element));
+
+ if (!gIOOptionsEntry) {
+ regEntry = IORegistryEntry::fromPath("/options", gIODTPlane);
+ gIOOptionsEntry = OSDynamicCast(IODTNVRAM, regEntry);
+ if (regEntry && !gIOOptionsEntry) {
+ regEntry->release();
+ }
+ }
+
+ sym = OSSymbol::withCStringNoCopy(kIOHibernateBootNoteKey);
+ if (gIOOptionsEntry && sym) {
+ gIOOptionsEntry->setProperty(sym, noteProp);
+ }
+ if (noteProp) {
+ noteProp->release();
+ }
+ if (sym) {
+ sym->release();
+ }
}
projects / apple / xnu.git / blobdiff