iokit/Kernel/IOHibernateInternal.h

   1 /*
   2  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 #include <stdint.h>
  24
  25 #ifdef __cplusplus
  26
  27 enum { kIOHibernateAESKeySize = 128 };  /* bits */
  28
  29 struct IOHibernateVars
  30 {
  31     hibernate_page_list_t *             page_list;
  32     hibernate_page_list_t *             page_list_wired;
  33     class IOBufferMemoryDescriptor *    ioBuffer;
  34     class IOBufferMemoryDescriptor *    srcBuffer;
  35     class IOMemoryDescriptor *          previewBuffer;
  36     OSData *                            previewData;
  37     OSData *                            fileExtents;
  38     OSObject *                          saveBootDevice;
  39
  40     struct IOPolledFileIOVars *         fileVars;
  41     vm_offset_t                         videoMapping;
  42     vm_size_t                           videoAllocSize;
  43     vm_size_t                           videoMapSize;
  44     uint8_t                             haveFastBoot;
  45     uint8_t                             saveBootAudioVolume;
  46     uint8_t                             wiredCryptKey[kIOHibernateAESKeySize / 8];
  47     uint8_t                             cryptKey[kIOHibernateAESKeySize / 8];
  48 };
  49 typedef struct IOHibernateVars IOHibernateVars;
  50
  51
  52 struct IOPolledFileIOVars
  53 {
  54     struct kern_direct_file_io_ref_t *  fileRef;
  55     class OSArray *                     pollers;
  56     IOByteCount                         blockSize;
  57     uint8_t *                           buffer;
  58     IOByteCount                         bufferSize;
  59     IOByteCount                         bufferLimit;
  60     IOByteCount                         bufferOffset;
  61     IOByteCount                         bufferHalf;
  62     IOByteCount                         extentRemaining;
  63     IOByteCount                         lastRead;
  64     uint64_t                            block0;
  65     uint64_t                            position;
  66     uint64_t                            extentPosition;
  67     uint64_t                            encryptStart;
  68     IOPolledFileExtent *                extentMap;
  69     IOPolledFileExtent *                currentExtent;
  70     bool                                io;
  71     IOReturn                            ioStatus;
  72 };
  73 typedef struct IOPolledFileIOVars IOPolledFileIOVars;
  74
  75 #endif          /* __cplusplus */
  76
  77 enum
  78 {
  79     kIOHibernateTagSignature = 0x53000000,
  80     kIOHibernateTagLength    = 0x00001fff,
  81 };
  82
  83 #ifdef __cplusplus
  84 extern "C"
  85 #endif          /* __cplusplus */
  86 uint32_t
  87 hibernate_sum(uint8_t *buf, int32_t len);
  88
  89 extern vm_offset_t sectHIBB;
  90 extern int         sectSizeHIB;
  91 extern vm_offset_t sectDATAB;
  92 extern int         sectSizeDATA;
  93
  94 extern vm_offset_t gIOHibernateWakeMap;     // ppnum
  95 extern vm_size_t   gIOHibernateWakeMapSize;
  96