1/* 2 * Copyright (c) 2000-2005 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 * Header files for the Low Memory Globals (lg) 30 */ 31#ifndef _LOW_MEMORY_GLOBALS_H_ 32#define _LOW_MEMORY_GLOBALS_H_ 33 34#include <mach/mach_types.h> 35#include <mach/vm_types.h> 36#include <mach/machine/vm_types.h> 37#include <mach/vm_prot.h> 38#include <ppc/proc_reg.h> 39#include <ppc/savearea.h> 40#include <ppc/low_trace.h> 41#include <ppc/Diagnostics.h> 42#include <ppc/mappings.h> 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/* 50 * This is where we put constants, pointers, and data areas that must be accessed 51 * quickly through assembler. They are designed to be accessed directly with 52 * absolute addresses, not via a base register. This is a global area, and not 53 * per processor. 54 */ 55 56#pragma pack(4) /* Make sure the structure stays as we defined it */ 57typedef struct lowglo { 58 59 unsigned long lgForceAddr[5*1024]; /* 0000 Force to page 5 */ 60 unsigned char lgVerCode[8]; /* 5000 System verification code */ 61 unsigned long long lgZero; /* 5008 Double constant 0 */ 62 unsigned int lgPPStart; /* 5010 Start of per_proc blocks */ 63 unsigned int lgCHUDXNUfnStart; /* 5014 CHUD XNU function glue table */ 64 unsigned int lgMckFlags; /* 5018 Machine check flags */ 65 unsigned int lgVersion; /* 501C Pointer to kernel version string */ 66 uint64_t lgPMWvaddr; /* 5020 physical memory window virtual address */ 67 uint64_t lgUMWvaddr; /* 5028 user memory window virtual address */ 68 unsigned int lgVMMforcedFeats; /* 5030 VMM boot-args forced feature flags */ 69 unsigned int lgMaxDec; /* 5034 Maximum decrementer we can set */ 70 unsigned int lgPmsCtlp; /* 5038 Pointer to power management stepper control */ 71 unsigned int lgRsv03C[17]; /* 503C reserved */ 72 traceWork lgTrcWork; /* 5080 Tracing control block - trcWork */ 73 unsigned int lgRsv0A0[24]; /* 50A0 reserved */ 74 struct Saveanchor lgSaveanchor; /* 5100 Savearea anchor - saveanchor */ 75 unsigned int lgRsv140[16]; /* 5140 reserved */ 76 unsigned int lgTlbieLck; /* 5180 TLBIE lock */ 77 unsigned int lgRsv184[31]; /* 5184 reserved - push to next line */ 78 struct diagWork lgdgWork; /* 5200 Start of diagnostic work area */ 79 unsigned int lglcksWork; /* 5220 lcks option */ 80 unsigned int lgRsv224[23]; /* 5224 reserved */ 81 pcfg lgpPcfg[8]; /* 5280 Page configurations */ 82 unsigned int lgRst2A0[24]; /* 52A0 reserved */ 83 unsigned int lgKillResv; /* 5300 line used to kill reservations */ 84 unsigned int lgKillResvpad[31]; /* 5304 pad reservation kill line */ 85 86 unsigned int lgRsv380[32]; /* 5380 - 5400 reserved */ 87 88 unsigned int lgRsv400[32]; /* 5400 - 5480 reserved */ 89 uint32_t lgKmodptr; /* 0x5480 Pointer to kmod, debugging aid */ 90 uint32_t lgTransOff; /* 0x5484 Pointer to kdp_trans_off, debugging aid */ 91 uint32_t lgReadIO; /* 0x5488 Pointer to kdp_read_io, debugging aid */ 92 uint32_t lgDevSlot1; /* 0x548C For developer use */ 93 uint32_t lgDevSlot2; /* 0x5490 For developer use */ 94 uint32_t lgOSVersion; /* 0x5494 Pointer to OS version string */ 95 uint32_t lgRebootFlag; /* 0x5498 Pointer to debugger reboot trigger */ 96 uint32_t lgRsv49C[729]; /* 0x549C Reserved - push to 1 page */ 97} lowglo; 98 99extern lowglo lowGlo; 100 101#endif /* _LOW_MEMORY_GLOBALS_H_ */ 102