1 /* 2 * Copyright (c) 2000-2006 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 /* 30 * Header files for the Low Memory Globals (lg) 31 */ 32 #ifndef _LOW_MEMORY_GLOBALS_H_ 33 #define _LOW_MEMORY_GLOBALS_H_ 34 35 #include <mach/mach_types.h> 36 #include <mach/vm_types.h> 37 #include <mach/machine/vm_types.h> 38 #include <mach/vm_prot.h> 39 40 #ifndef __x86_64__ 41 #error Wrong architecture - this file is meant for x86_64 42 #endif 43 44 /* 45 * Don't change these structures unless you change the corresponding assembly code 46 * which is in lowmem_vectors.s 47 */ 48 49 #pragma pack(8) /* Make sure the structure stays as we defined it */ 50 typedef struct lowglo { 51 unsigned char lgVerCode[8]; /* 0xffffff8000002000 System verification code */ 52 uint64_t lgZero; /* 0xffffff8000002008 Double constant 0 */ 53 uint64_t lgStext; /* 0xffffff8000002010 Start of kernel text */ 54 uint64_t lgLayoutMajorVersion; /* 0xffffff8000002018 Low globals layout major version */ 55 uint64_t lgLayoutMinorVersion; /* 0xffffff8000002020 Low globals layout minor version */ 56 uint64_t lgRsv028; /* 0xffffff8000002028 Reserved */ 57 uint64_t lgVersion; /* 0xffffff8000002030 Pointer to kernel version string */ 58 uint64_t lgCompressorBufferAddr; /* 0xffffff8000002038 Pointer to compressor buffer */ 59 uint64_t lgCompressorSizeAddr; /* 0xffffff8000002040 Pointer to size of compressor buffer */ 60 uint64_t lgRsv038[278]; /* 0xffffff8000002048 Reserved */ 61 uint64_t lgKmodptr; /* 0xffffff80000028f8 Pointer to kmod, debugging aid */ 62 uint64_t lgTransOff; /* 0xffffff8000002900 Pointer to kdp_trans_off, debugging aid */ 63 uint64_t lgReadIO; /* 0xffffff8000002908 Pointer to kdp_read_io, debugging aid */ 64 uint64_t lgDevSlot1; /* 0xffffff8000002910 For developer use */ 65 uint64_t lgDevSlot2; /* 0xffffff8000002918 For developer use */ 66 uint64_t lgOSVersion; /* 0xffffff8000002920 Pointer to OS version string */ 67 uint64_t lgRebootFlag; /* 0xffffff8000002928 Pointer to debugger reboot trigger */ 68 uint64_t lgManualPktAddr; /* 0xffffff8000002930 Pointer to manual packet structure */ 69 uint64_t lgKdpJtagCoredumpAddr; /* 0xffffff8000002938 Pointer to kdp_jtag_coredump_t structure */ 70 71 uint64_t lgRsv940[216]; /* 0xffffff8000002940 Reserved - push to 1 page */ 72 } lowglo; 73 #pragma pack() 74 extern lowglo lowGlo; 75 #endif /* _LOW_MEMORY_GLOBALS_H_ */ 76