X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/378393581903b274cb7a4d18e0d978071a6b592d..a991bd8d3e7fe02dbca0644054bab73c5b75324a:/iokit/Kernel/IOHibernateInternal.h diff --git a/iokit/Kernel/IOHibernateInternal.h b/iokit/Kernel/IOHibernateInternal.h index 59783732f..cbb8cc2eb 100644 --- a/iokit/Kernel/IOHibernateInternal.h +++ b/iokit/Kernel/IOHibernateInternal.h @@ -1,93 +1,96 @@ /* * Copyright (c) 2004 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ - * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. - * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * @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 OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. - * - * @APPLE_LICENSE_HEADER_END@ + * 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 +#include #ifdef __cplusplus -enum { kIOHibernateAESKeySize = 128 }; /* bits */ -struct IOHibernateVars -{ - hibernate_page_list_t * page_list; - hibernate_page_list_t * page_list_wired; - class IOBufferMemoryDescriptor * ioBuffer; - class IOBufferMemoryDescriptor * srcBuffer; - class IOMemoryDescriptor * previewBuffer; - OSData * previewData; - OSData * fileExtents; - OSObject * saveBootDevice; +enum { kIOHibernateAESKeySize = 16 }; /* bytes */ - struct IOPolledFileIOVars * fileVars; - vm_offset_t videoMapping; - vm_size_t videoAllocSize; - vm_size_t videoMapSize; - uint8_t haveFastBoot; - uint8_t saveBootAudioVolume; - uint8_t wiredCryptKey[kIOHibernateAESKeySize / 8]; - uint8_t cryptKey[kIOHibernateAESKeySize / 8]; -}; -typedef struct IOHibernateVars IOHibernateVars; +// srcBuffer has to be big enough for a source page, the WKDM +// compressed output, and a scratch page needed by WKDM +#define HIBERNATION_SRC_BUFFER_SIZE (2 * page_size + WKdm_SCRATCH_BUF_SIZE_INTERNAL) +struct IOHibernateVars { + hibernate_page_list_t * page_list; + hibernate_page_list_t * page_list_wired; + hibernate_page_list_t * page_list_pal; + class IOBufferMemoryDescriptor * ioBuffer; + class IOBufferMemoryDescriptor * srcBuffer; + class IOBufferMemoryDescriptor * handoffBuffer; + class IOMemoryDescriptor * previewBuffer; + OSData * previewData; + OSObject * saveBootDevice; -struct IOPolledFileIOVars -{ - struct kern_direct_file_io_ref_t * fileRef; - class OSArray * pollers; - IOByteCount blockSize; - uint8_t * buffer; - IOByteCount bufferSize; - IOByteCount bufferLimit; - IOByteCount bufferOffset; - IOByteCount bufferHalf; - IOByteCount extentRemaining; - IOByteCount lastRead; - uint64_t block0; - uint64_t position; - uint64_t extentPosition; - uint64_t encryptStart; - IOPolledFileExtent * extentMap; - IOPolledFileExtent * currentExtent; - bool io; - IOReturn ioStatus; + struct IOPolledFileIOVars * fileVars; + uint64_t fileMinSize; + uint64_t fileMaxSize; + vm_offset_t videoMapping; + vm_size_t videoAllocSize; + vm_size_t videoMapSize; + uint8_t * consoleMapping; + uint8_t haveFastBoot; + uint8_t saveBootAudioVolume; + uint8_t hwEncrypt; + uint8_t wiredCryptKey[kIOHibernateAESKeySize]; + uint8_t cryptKey[kIOHibernateAESKeySize]; + size_t volumeCryptKeySize; + uint8_t volumeCryptKey[64]; }; -typedef struct IOPolledFileIOVars IOPolledFileIOVars; +typedef struct IOHibernateVars IOHibernateVars; -#endif /* __cplusplus */ +#endif /* __cplusplus */ -enum -{ - kIOHibernateTagSignature = 0x53000000, - kIOHibernateTagLength = 0x00001fff, +enum{ + kIOHibernateTagSignature = 0x53000000, + kIOHibernateTagLength = 0x00007fff, }; #ifdef __cplusplus extern "C" -#endif /* __cplusplus */ +#endif /* __cplusplus */ uint32_t -hibernate_sum(uint8_t *buf, int32_t len); +hibernate_sum_page(uint8_t *buf, uint32_t ppnum); + +#if defined(__i386__) || defined(__x86_64__) +extern vm_offset_t segHIBB; +extern unsigned long segSizeHIB; +#elif defined(__arm64__) +extern vm_offset_t sectHIBTEXTB; +extern unsigned long sectSizeHIBTEXT; +#endif -extern vm_offset_t sectHIBB; -extern int sectSizeHIB; -extern vm_offset_t sectDATAB; -extern int sectSizeDATA; +extern ppnum_t gIOHibernateHandoffPages[]; +extern const uint32_t gIOHibernateHandoffPageCount; +// max address that can fit in a ppnum_t +#define IO_MAX_PAGE_ADDR (((uint64_t) UINT_MAX) << PAGE_SHIFT) +// atop() returning ppnum_t +#define atop_64_ppnum(x) ((ppnum_t)((uint64_t)(x) >> PAGE_SHIFT))