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#if defined(__x86_64__) 36#include <x86_64/lowglobals.h> 37#elif !defined(__i386__) 38#error Wrong architecture - this file is meant for i386 39#endif 40 41#include <mach/mach_types.h> 42#include <mach/vm_types.h> 43#include <mach/machine/vm_types.h> 44#include <mach/vm_prot.h> 45 46/* 47 * Don't change these structures unless you change the corresponding assembly code 48 * which is in lowmem_vectors.s 49 */ 50 51/* 52 * This is where we put constants, pointers, and data areas that must be accessed 53 * quickly through assembler. They are designed to be accessed directly with 54 * absolute addresses, not via a base register. This is a global area, and not 55 * per processor. 56 */ 57 58#pragma pack(4) /* Make sure the structure stays as we defined it */ 59typedef struct lowglo { 60 61 unsigned char lgVerCode[8]; /* 0x2000 System verification code */ 62 unsigned long long lgZero; /* 0x2008 Double constant 0 */ 63 uint32_t lgRsv010; /* 0x2010 Reserved */ 64 uint32_t lgCHUDXNUfnStart; /* 0x2014 CHUD XNU function glue 65 * table */ 66 uint32_t lgRsv018; /* 0x2018 Reserved */ 67 uint32_t lgVersion; /* 0x201C Pointer to kernel version string */ 68 uint32_t lgRsv020[280]; /* 0X2020 Reserved */ 69 uint32_t lgKmodptr; /* 0x2480 Pointer to kmod, debugging aid */ 70 uint32_t lgTransOff; /* 0x2484 Pointer to kdp_trans_off, debugging aid */ 71 uint32_t lgReadIO; /* 0x2488 Pointer to kdp_read_io, debugging aid */ 72 uint32_t lgDevSlot1; /* 0x248C For developer use */ 73 uint32_t lgDevSlot2; /* 0x2490 For developer use */ 74 uint32_t lgOSVersion; /* 0x2494 Pointer to OS version string */ 75 uint32_t lgRebootFlag; /* 0x2498 Pointer to debugger reboot trigger */ 76 uint32_t lgManualPktAddr; /* 0x249C Pointer to manual packet structure */ 77 uint32_t lgRsv49C[728]; /* 0x24A0 Reserved - push to 1 page */ 78} lowglo; 79#pragma pack() 80extern lowglo lowGlo; 81#endif /* _LOW_MEMORY_GLOBALS_H_ */ 82