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/* 41 * Don't change these structures unless you change the corresponding assembly code 42 * which is in lowmem_vectors.s 43 */ 44 45/* 46 * This is where we put constants, pointers, and data areas that must be accessed 47 * quickly through assembler. They are designed to be accessed directly with 48 * absolute addresses, not via a base register. This is a global area, and not 49 * per processor. 50 */ 51 52#pragma pack(4) /* Make sure the structure stays as we defined it */ 53typedef struct lowglo { 54 55 unsigned char lgVerCode[8]; /* 0x2000 System verification code */ 56 unsigned long long lgZero; /* 0x2008 Double constant 0 */ 57 uint32_t lgRsv010; /* 0x2010 Reserved */ 58 uint32_t lgCHUDXNUfnStart; /* 0x2014 CHUD XNU function glue 59 * table */ 60 uint32_t lgRsv018; /* 0x2018 Reserved */ 61 uint32_t lgVersion; /* 0x201C Pointer to kernel version string */ 62 uint32_t lgRsv020[280]; /* 0X2020 Reserved */ 63 uint32_t lgKmodptr; /* 0x2480 Pointer to kmod, debugging aid */ 64 uint32_t lgTransOff; /* 0x2484 Pointer to kdp_trans_off, debugging aid */ 65 uint32_t lgReadIO; /* 0x2488 Pointer to kdp_read_io, debugging aid */ 66 uint32_t lgDevSlot1; /* 0x248C For developer use */ 67 uint32_t lgDevSlot2; /* 0x2490 For developer use */ 68 uint32_t lgOSVersion; /* 0x2494 Pointer to OS version string */ 69 uint32_t lgRebootFlag; /* 0x2498 Pointer to debugger reboot trigger */ 70 uint32_t lgRsv49C[729]; /* 0x549C Reserved - push to 1 page */ 71} lowglo; 72#pragma pack() 73extern lowglo lowGlo; 74#endif /* _LOW_MEMORY_GLOBALS_H_ */ 75