iokit/Kernel/IOHibernateInternal.h

   1 /*
   2  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #include <stdint.h>
  30
  31 #ifdef __cplusplus
  32
  33 enum { kIOHibernateAESKeySize = 128 };  /* bits */
  34
  35 struct IOHibernateVars
  36 {
  37     hibernate_page_list_t *             page_list;
  38     hibernate_page_list_t *             page_list_wired;
  39     class IOBufferMemoryDescriptor *    ioBuffer;
  40     class IOBufferMemoryDescriptor *    srcBuffer;
  41     class IOMemoryDescriptor *          previewBuffer;
  42     OSData *                            previewData;
  43     OSData *                            fileExtents;
  44     OSObject *                          saveBootDevice;
  45
  46     struct IOPolledFileIOVars *         fileVars;
  47     vm_offset_t                         videoMapping;
  48     vm_size_t                           videoAllocSize;
  49     vm_size_t                           videoMapSize;
  50     uint8_t                             haveFastBoot;
  51     uint8_t                             saveBootAudioVolume;
  52     uint8_t                             wiredCryptKey[kIOHibernateAESKeySize / 8];
  53     uint8_t                             cryptKey[kIOHibernateAESKeySize / 8];
  54 };
  55 typedef struct IOHibernateVars IOHibernateVars;
  56
  57
  58 struct IOPolledFileIOVars
  59 {
  60     struct kern_direct_file_io_ref_t *  fileRef;
  61     class OSArray *                     pollers;
  62     IOByteCount                         blockSize;
  63     uint8_t *                           buffer;
  64     IOByteCount                         bufferSize;
  65     IOByteCount                         bufferLimit;
  66     IOByteCount                         bufferOffset;
  67     IOByteCount                         bufferHalf;
  68     IOByteCount                         extentRemaining;
  69     IOByteCount                         lastRead;
  70     uint64_t                            block0;
  71     uint64_t                            position;
  72     uint64_t                            extentPosition;
  73     uint64_t                            encryptStart;
  74     IOPolledFileExtent *                extentMap;
  75     IOPolledFileExtent *                currentExtent;
  76     bool                                io;
  77     IOReturn                            ioStatus;
  78 };
  79 typedef struct IOPolledFileIOVars IOPolledFileIOVars;
  80
  81 #endif          /* __cplusplus */
  82
  83 enum
  84 {
  85     kIOHibernateTagSignature = 0x53000000,
  86     kIOHibernateTagLength    = 0x00001fff,
  87 };
  88
  89 #ifdef __cplusplus
  90 extern "C"
  91 #endif          /* __cplusplus */
  92 uint32_t
  93 hibernate_sum(uint8_t *buf, int32_t len);
  94
  95 extern vm_offset_t sectHIBB;
  96 extern int         sectSizeHIB;
  97 extern vm_offset_t sectDATAB;
  98 extern int         sectSizeDATA;
  99
 100 extern vm_offset_t gIOHibernateWakeMap;     // ppnum
 101 extern vm_size_t   gIOHibernateWakeMapSize;
 102