FreeBSD/Linux Kernel Cross Reference
sys/iokit/IOKit/IOHibernatePrivate.h

     /*
      * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
      *
      * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
      * 
      * This file contains Original Code and/or Modifications of Original Code
      * as defined in and that are subject to the Apple Public Source License
      * Version 2.0 (the 'License'). You may not use this file except in
      * compliance with the License. The rights granted to you under the License
     * may not be used to create, or enable the creation or redistribution of,
     * unlawful or unlicensed copies of an Apple operating system, or to
     * circumvent, violate, or enable the circumvention or violation of, any
     * terms of an Apple operating system software license agreement.
     * 
     * Please obtain a copy of the License at
     * http://www.opensource.apple.com/apsl/ and read it before using this file.
     * 
     * The Original Code and all software distributed under the License are
     * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
     * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
     * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
     * Please see the License for the specific language governing rights and
     * limitations under the License.
     * 
     * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
     */
    
    #include <stdint.h>
    
    #ifdef __cplusplus
    extern "C" {
    #endif
    
    #ifdef KERNEL
    #include <crypto/aes.h>
    #endif
    
    struct IOPolledFileExtent
    {
        uint64_t    start;
        uint64_t    length;
    };
    typedef struct IOPolledFileExtent IOPolledFileExtent;
    
    struct IOHibernateImageHeader
    {
        uint64_t    imageSize;
        uint64_t    image1Size;
        
        uint32_t    restore1CodePage;
        uint32_t    restore1PageCount;
        uint32_t    restore1CodeOffset;
        uint32_t    restore1StackOffset;
        
        uint32_t    pageCount;
        uint32_t    bitmapSize;
    
        uint32_t    restore1Sum;
        uint32_t    image1Sum;
        uint32_t    image2Sum;
    
        uint32_t    actualRestore1Sum;
        uint32_t    actualImage1Sum;
        uint32_t    actualImage2Sum;
    
        uint32_t    actualUncompressedPages;
        uint32_t    conflictCount;
        uint32_t    nextFree;
    
        uint32_t    signature;
        uint32_t    processorFlags;
    
        uint32_t    runtimePages;
        uint32_t    runtimePageCount;
    
        uint8_t     reserved2[16];
        
        uint64_t    encryptStart;
        uint64_t    machineSignature;
    
        uint32_t    previewSize;
        uint32_t    previewPageListSize;
    
        uint32_t    diag[4];
    
        int32_t     graphicsInfoOffset;
        int32_t     cryptVarsOffset;
        int32_t     memoryMapOffset;
        uint32_t    memoryMapSize;
        uint32_t    systemTableOffset;
    
        uint32_t    reserved[77];           // make sizeof == 512
    
        uint32_t            fileExtentMapSize;
        IOPolledFileExtent  fileExtentMap[2];
    };
    typedef struct IOHibernateImageHeader IOHibernateImageHeader;
    
   
   struct hibernate_bitmap_t
   {
       uint32_t    first_page;
       uint32_t    last_page;
       uint32_t    bitmapwords;
       uint32_t    bitmap[0];
   };
   typedef struct hibernate_bitmap_t hibernate_bitmap_t;
   
   struct hibernate_page_list_t
   {
       uint32_t              list_size;
       uint32_t              page_count;
       uint32_t              bank_count;
       hibernate_bitmap_t    bank_bitmap[0];
   };
   typedef struct hibernate_page_list_t hibernate_page_list_t;
   
   #if defined(_AES_H)
   
   struct hibernate_cryptwakevars_t
   {
       uint8_t aes_iv[AES_BLOCK_SIZE];
   };
   typedef struct hibernate_cryptwakevars_t hibernate_cryptwakevars_t;
   
   struct hibernate_cryptvars_t
   {
       uint8_t aes_iv[AES_BLOCK_SIZE];
       aes_ctx ctx;
   };
   typedef struct hibernate_cryptvars_t hibernate_cryptvars_t;
   
   #endif /* defined(_AES_H) */
   
   
   enum 
   {
       kIOHibernateProgressCount         = 19,
       kIOHibernateProgressWidth         = 7,
       kIOHibernateProgressHeight        = 16,
       kIOHibernateProgressSpacing       = 3,
       kIOHibernateProgressOriginY       = 81,
   
       kIOHibernateProgressSaveUnderSize = 2*5+14*2,
   
       kIOHibernateProgressLightGray     = 230,
       kIOHibernateProgressMidGray       = 174,
       kIOHibernateProgressDarkGray      = 92
   };
   
   enum
   {
       kIOHibernatePostWriteSleep   = 0,
       kIOHibernatePostWriteWake    = 1,
       kIOHibernatePostWriteHalt    = 2,
       kIOHibernatePostWriteRestart = 3
   };
   
   
   struct hibernate_graphics_t
   {
       uint32_t physicalAddress;           // Base address of video memory
       uint32_t mode;                      // 
       uint32_t rowBytes;                  // Number of bytes per pixel row
       uint32_t width;                     // Width
       uint32_t height;                    // Height
       uint32_t depth;                     // Pixel Depth
   
       uint8_t progressSaveUnder[kIOHibernateProgressCount][kIOHibernateProgressSaveUnderSize];
   };
   typedef struct hibernate_graphics_t hibernate_graphics_t;
   
   #define DECLARE_IOHIBERNATEPROGRESSALPHA                                \
   static const uint8_t gIOHibernateProgressAlpha                  \
   [kIOHibernateProgressHeight][kIOHibernateProgressWidth] =       \
   {                                                               \
       { 0x00,0x63,0xd8,0xf0,0xd8,0x63,0x00 },                     \
       { 0x51,0xff,0xff,0xff,0xff,0xff,0x51 },                     \
       { 0xae,0xff,0xff,0xff,0xff,0xff,0xae },                     \
       { 0xc3,0xff,0xff,0xff,0xff,0xff,0xc3 },                     \
       { 0xc3,0xff,0xff,0xff,0xff,0xff,0xc3 },                     \
       { 0xc3,0xff,0xff,0xff,0xff,0xff,0xc3 },                     \
       { 0xc3,0xff,0xff,0xff,0xff,0xff,0xc3 },                     \
       { 0xc3,0xff,0xff,0xff,0xff,0xff,0xc3 },                     \
       { 0xc3,0xff,0xff,0xff,0xff,0xff,0xc3 },                     \
       { 0xc3,0xff,0xff,0xff,0xff,0xff,0xc3 },                     \
       { 0xc3,0xff,0xff,0xff,0xff,0xff,0xc3 },                     \
       { 0xc3,0xff,0xff,0xff,0xff,0xff,0xc3 },                     \
       { 0xc3,0xff,0xff,0xff,0xff,0xff,0xc3 },                     \
       { 0xae,0xff,0xff,0xff,0xff,0xff,0xae },                     \
       { 0x54,0xff,0xff,0xff,0xff,0xff,0x54 },                     \
       { 0x00,0x66,0xdb,0xf3,0xdb,0x66,0x00 }                      \
   };
   
   #ifdef KERNEL
   
   #ifdef __cplusplus
   
   void     IOHibernateSystemInit(IOPMrootDomain * rootDomain);
   
   IOReturn IOHibernateSystemSleep(void);
   IOReturn IOHibernateSystemHasSlept(void);
   IOReturn IOHibernateSystemWake(void);
   IOReturn IOHibernateSystemPostWake(void);
   
   #endif /* __cplusplus */
   
   #ifdef _SYS_CONF_H_
   typedef void (*kern_get_file_extents_callback_t)(void * ref, uint64_t start, uint64_t size);
   
   struct kern_direct_file_io_ref_t *
   kern_open_file_for_direct_io(const char * name, 
                                kern_get_file_extents_callback_t callback, 
                                void * callback_ref,
                                dev_t * device,
                                uint64_t * partitionbase_result,
                                uint64_t * maxiocount_result);
   void
   kern_close_file_for_direct_io(struct kern_direct_file_io_ref_t * ref);
   int
   kern_write_file(struct kern_direct_file_io_ref_t * ref, off_t offset, caddr_t addr, vm_size_t len);
   int get_kernel_symfile(struct proc *p, char const **symfile);
   #endif /* _SYS_CONF_H_ */
   
   hibernate_page_list_t *
   hibernate_page_list_allocate(void);
   
   kern_return_t 
   hibernate_setup(IOHibernateImageHeader * header,
                           uint32_t free_page_ratio,
                           uint32_t free_page_time,
                           hibernate_page_list_t ** page_list_ret,
                           hibernate_page_list_t ** page_list_wired_ret,
                           boolean_t * encryptedswap);
   kern_return_t 
   hibernate_teardown(hibernate_page_list_t * page_list,
                       hibernate_page_list_t * page_list_wired);
   
   kern_return_t 
   hibernate_processor_setup(IOHibernateImageHeader * header);
   
   void
   hibernate_vm_lock(void);
   void
   hibernate_vm_unlock(void);
   
   // mark pages not to be saved, based on VM system accounting
   void
   hibernate_page_list_setall(hibernate_page_list_t * page_list,
                              hibernate_page_list_t * page_list_wired,
                              uint32_t * pagesOut);
   
   // mark pages to be saved, or pages not to be saved but available 
   // for scratch usage during restore
   void
   hibernate_page_list_setall_machine(hibernate_page_list_t * page_list,
                                       hibernate_page_list_t * page_list_wired,
                                       uint32_t * pagesOut);
   
   // mark pages not to be saved and not for scratch usage during restore
   void
   hibernate_page_list_set_volatile( hibernate_page_list_t * page_list,
                                     hibernate_page_list_t * page_list_wired,
                                     uint32_t * pagesOut);
   
   void
   hibernate_page_list_discard(hibernate_page_list_t * page_list);
   
   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);
   
   void 
   hibernate_page_bitset(hibernate_page_list_t * list, boolean_t set, uint32_t page);
   
   boolean_t 
   hibernate_page_bittst(hibernate_page_list_t * list, uint32_t page);
   
   hibernate_bitmap_t *
   hibernate_page_bitmap_pin(hibernate_page_list_t * list, uint32_t * page);
   
   uint32_t
   hibernate_page_bitmap_count(hibernate_bitmap_t * bitmap, uint32_t set, uint32_t page);
   
   void 
   hibernate_restore_phys_page(uint64_t src, uint64_t dst, uint32_t len, uint32_t procFlags);
   
   void
   hibernate_machine_init(void);
   
   uint32_t
   hibernate_write_image(void);
   
   long
   hibernate_machine_entrypoint(IOHibernateImageHeader * header, void * p2, void * p3, void * p4);
   long
   hibernate_kernel_entrypoint(IOHibernateImageHeader * header, void * p2, void * p3, void * p4);
   void
   hibernate_newruntime_map(void * map, vm_size_t map_size, 
                               uint32_t system_table_offset);
   
   
   extern uint32_t    gIOHibernateState;
   extern uint32_t    gIOHibernateMode;
   extern uint32_t    gIOHibernateFreeTime;        // max time to spend freeing pages (ms)
   extern uint8_t     gIOHibernateRestoreStack[];
   extern uint8_t     gIOHibernateRestoreStackEnd[];
   extern IOHibernateImageHeader *    gIOHibernateCurrentHeader;
   extern hibernate_graphics_t *      gIOHibernateGraphicsInfo;
   extern hibernate_cryptwakevars_t * gIOHibernateCryptWakeVars;
   
   #define HIBLOG(fmt, args...)    \
       { kprintf(fmt, ## args); printf(fmt, ## args); }
   
   #define HIBPRINT(fmt, args...)  \
       { kprintf(fmt, ## args); }
   
   #endif /* KERNEL */
   
   // gIOHibernateState, kIOHibernateStateKey
   enum
   {
       kIOHibernateStateInactive            = 0,
       kIOHibernateStateHibernating         = 1,   /* writing image */
       kIOHibernateStateWakingFromHibernate = 2    /* booted and restored image */
   };
   
   // gIOHibernateMode, kIOHibernateModeKey
   enum
   {
       kIOHibernateModeOn      = 0x00000001,
       kIOHibernateModeSleep   = 0x00000002,
       kIOHibernateModeEncrypt = 0x00000004,
       kIOHibernateModeDiscardCleanInactive = 0x00000008,
       kIOHibernateModeDiscardCleanActive   = 0x00000010,
       kIOHibernateModeSwitch      = 0x00000020,
       kIOHibernateModeRestart     = 0x00000040
   };
   
   // IOHibernateImageHeader.signature
   enum
   {
       kIOHibernateHeaderSignature        = 0x73696d65,
       kIOHibernateHeaderInvalidSignature = 0x7a7a7a7a
   };
   
   // kind for hibernate_set_page_state()
   enum
   {
       kIOHibernatePageStateFree        = 0,
       kIOHibernatePageStateWiredSave   = 1,
       kIOHibernatePageStateUnwiredSave = 2
   };
   
   #define kIOHibernateModeKey             "Hibernate Mode"
   #define kIOHibernateFileKey             "Hibernate File"
   #define kIOHibernateFreeRatioKey        "Hibernate Free Ratio"
   #define kIOHibernateFreeTimeKey         "Hibernate Free Time"
   
   #define kIOHibernateStateKey            "IOHibernateState"
   #define kIOHibernateFeatureKey          "Hibernation"
   #define kIOHibernatePreviewBufferKey    "IOPreviewBuffer"
   
   #define kIOHibernatePreviewActiveKey    "IOHibernatePreviewActive"
   // values for kIOHibernatePreviewActiveKey
   enum {
       kIOHibernatePreviewActive  = 0x00000001,
       kIOHibernatePreviewUpdates = 0x00000002
   };
   
   #define kIOHibernateBootImageKey        "boot-image"
   #define kIOHibernateBootImageKeyKey     "boot-image-key"
   #define kIOHibernateBootSignatureKey    "boot-signature"
   
   #define kIOHibernateMemorySignatureKey    "memory-signature"
   #define kIOHibernateMemorySignatureEnvKey "mem-sig"
   #define kIOHibernateMachineSignatureKey   "machine-signature"
   
   #define kIOHibernateRTCVariablesKey     "IOHibernateRTCVariables"
   
   #define kIOHibernateBootSwitchVarsKey                   "boot-switch-vars"
   
   
   #ifdef __cplusplus
   }
   #endif

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