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1/*
2 * Copyright (c) 2002-2003 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * Portions Copyright (c) 2002-2003 Apple Computer, Inc. All Rights
7 * Reserved. This file contains Original Code and/or Modifications of
8 * Original Code as defined in and that are subject to the Apple Public
9 * Source License Version 2.0 (the "License"). You may not use this file
10 * except in compliance with the License. Please obtain a copy of the
11 * License at http://www.apple.com/publicsource and read it before using
12 * this file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the
19 * License for the specific language governing rights and limitations
20 * under the License.
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24
25#ifndef __BOOTSTRUCT_H
26#define __BOOTSTRUCT_H
27
28#include "bootargs.h"
29#include "saio_types.h"
30#include "bios.h"
31#include "device_tree.h"
32
33/*!
34 Kernel boot args global also used by booter for its own data.
35 */
36extern boot_args *bootArgs;
37extern boot_args_pre_lion *bootArgsPreLion;
38extern Node *gMemoryMapNode;
39
40#define VGA_TEXT_MODE 0
41//defined in /usr/../boot.h
42
43//#define GRAPHICS_MODE 1
44//#define FB_TEXT_MODE 2
45
46
47
48/*
49 * Maximum number of boot drivers that can be loaded.
50 */
51#define NDRIVERS 500
52
53#define CONFIG_SIZE (40 * 4096)
54
55/*
56 * Max size for config data array, in bytes.
57 */
58#define IO_CONFIG_DATA_SIZE163840
59
60#define kMemoryMapCountMax 40
61
62/*
63 * PCI bus information.
64 */
65typedef struct _PCI_bus_info_t {
66 union {
67 struct {
68 unsigned char configMethod1 :1;
69 unsigned char configMethod2 :1;
70 unsigned char :2;
71 unsigned char specialCycle1 :1;
72 unsigned char specialCycle2 :1;
73 } s;
74 unsigned char d;
75 } u_bus;
76 unsigned char maxBusNum;
77 unsigned char majorVersion;
78 unsigned char minorVersion;
79 unsigned char BIOSPresent;
80} PCI_bus_info_t;
81
82typedef struct {
83 unsigned long address; // address where driver was loaded
84 unsigned long size; // number of bytes
85 unsigned long type; // driver type
86} driver_config_t;
87
88/*
89 * INT15, E820h - Query System Address Map.
90 *
91 * Documented in ACPI Specification Rev 2.0,
92 * Chapter 15 (System Address Map Interfaces).
93 */
94
95/*
96 * ACPI defined memory range types.
97 */
98enum {
99 kMemoryRangeUsable = 1, // RAM usable by the OS.
100 kMemoryRangeReserved = 2, // Reserved. (Do not use)
101 kMemoryRangeACPI = 3, // ACPI tables. Can be reclaimed.
102 kMemoryRangeNVS = 4, // ACPI NVS memory. (Do not use)
103
104 /* Undefined types should be treated as kMemoryRangeReserved */
105};
106
107/*!
108 PrivateBootInfo has fields used by the booter that used to be part of
109 KernelBootArgs_t *bootArgs. When the switch was made to EFI the structure
110 completely changed to boot_args *bootArgs. This (new to boot-132) structure
111 contains the fields the kernel no longer cares about but the booter still
112 uses internally. Some fields (e.g. the video information) remain interesting
113 to the kernel and are thus located in bootArgs although with different field names.
114 */
115typedef struct PrivateBootInfo {
116 int convmem; // conventional memory
117 int extmem; // extended memory
118#if 0
119 int numBootDrivers; // number of drivers loaded
120#endif
121 char bootFile[128]; // kernel file name
122
123 unsigned long memoryMapCount;
124 MemoryRange memoryMap[kMemoryMapCountMax];
125
126 PCI_bus_info_t pciInfo;
127
128#if 0
129 driver_config_t driverConfig[NDRIVERS];
130#endif
131 char * configEnd; // pointer to end of config files
132 char config[CONFIG_SIZE];
133
134 config_file_t bootConfig; // boot.plist
135 config_file_t overrideConfig; // additional boot.plist which can override bootConfig keys
136 config_file_t themeConfig; // theme.plist
137 config_file_t smbiosConfig; // smbios.plist
138 config_file_t helperConfig; // boot helper partition's boot.plist
139 config_file_t ramdiskConfig; // RAMDisk.plist
140
141bool memDetect;
142} PrivateBootInfo_t;
143
144extern PrivateBootInfo_t *bootInfo;
145
146#endif /* __BOOTSTRUCT_H */
147

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