| 1 | /*␊ |
| 2 | * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * Portions Copyright (c) 1999-2003 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 | * Copyright 1993 NeXT, Inc.␊ |
| 26 | * All rights reserved.␊ |
| 27 | */␊ |
| 28 | ␊ |
| 29 | #include "libsaio.h"␊ |
| 30 | #include "bootstruct.h"␊ |
| 31 | ␊ |
| 32 | /*==========================================================================␊ |
| 33 | * Initialize the structure of parameters passed to␊ |
| 34 | * the kernel by the booter.␊ |
| 35 | */␊ |
| 36 | ␊ |
| 37 | boot_args *bootArgs;␊ |
| 38 | PrivateBootInfo_t *bootInfo;␊ |
| 39 | Node *gMemoryMapNode;␊ |
| 40 | ␊ |
| 41 | static char platformName[64];␊ |
| 42 | ␊ |
| 43 | void initKernBootStruct( void )␊ |
| 44 | {␊ |
| 45 | Node *node;␊ |
| 46 | int nameLen;␊ |
| 47 | static int init_done = 0;␊ |
| 48 | ␊ |
| 49 | if ( !init_done )␊ |
| 50 | {␊ |
| 51 | bootArgs = (boot_args *)malloc(sizeof(boot_args));␊ |
| 52 | bootInfo = (PrivateBootInfo_t *)malloc(sizeof(PrivateBootInfo_t));␊ |
| 53 | if (bootArgs == 0 || bootInfo == 0)␊ |
| 54 | stop("Couldn't allocate boot info\n");␊ |
| 55 | ␊ |
| 56 | bzero(bootArgs, sizeof(boot_args));␊ |
| 57 | bzero(bootInfo, sizeof(PrivateBootInfo_t));␊ |
| 58 | ␊ |
| 59 | // Get system memory map. Also update the size of the␊ |
| 60 | // conventional/extended memory for backwards compatibility.␊ |
| 61 | ␊ |
| 62 | bootInfo->memoryMapCount =␊ |
| 63 | getMemoryMap( bootInfo->memoryMap, kMemoryMapCountMax,␊ |
| 64 | (unsigned long *) &bootInfo->convmem,␊ |
| 65 | (unsigned long *) &bootInfo->extmem );␊ |
| 66 | ␊ |
| 67 | if ( bootInfo->memoryMapCount == 0 )␊ |
| 68 | {␊ |
| 69 | // BIOS did not provide a memory map, systems with␊ |
| 70 | // discontiguous memory or unusual memory hole locations␊ |
| 71 | // may have problems.␊ |
| 72 | ␊ |
| 73 | bootInfo->convmem = getConventionalMemorySize();␊ |
| 74 | bootInfo->extmem = getExtendedMemorySize();␊ |
| 75 | }␊ |
| 76 | ␊ |
| 77 | bootInfo->configEnd = bootInfo->config;␊ |
| 78 | bootArgs->Video.v_display = VGA_TEXT_MODE;␊ |
| 79 | ␊ |
| 80 | DT__Initialize();␊ |
| 81 | ␊ |
| 82 | node = DT__FindNode("/", true);␊ |
| 83 | if (node == 0) {␊ |
| 84 | stop("Couldn't create root node");␊ |
| 85 | }␊ |
| 86 | getPlatformName(platformName);␊ |
| 87 | nameLen = strlen(platformName) + 1;␊ |
| 88 | DT__AddProperty(node, "compatible", nameLen, platformName);␊ |
| 89 | DT__AddProperty(node, "model", nameLen, platformName);␊ |
| 90 | ␊ |
| 91 | gMemoryMapNode = DT__FindNode("/chosen/memory-map", true);␊ |
| 92 | ␊ |
| 93 | bootArgs->Version = kBootArgsVersion;␊ |
| 94 | bootArgs->Revision = 5;␊ |
| 95 | ␊ |
| 96 | init_done = 1;␊ |
| 97 | }␊ |
| 98 | ␊ |
| 99 | }␊ |
| 100 | ␊ |
| 101 | ␊ |
| 102 | /* Copy boot args after kernel and record address. */␊ |
| 103 | ␊ |
| 104 | void␊ |
| 105 | reserveKernBootStruct(void)␊ |
| 106 | {␊ |
| 107 | void *oldAddr = bootArgs;␊ |
| 108 | bootArgs = (boot_args *)AllocateKernelMemory(sizeof(boot_args));␊ |
| 109 | bcopy(oldAddr, bootArgs, sizeof(boot_args));␊ |
| 110 | }␊ |
| 111 | ␊ |
| 112 | void␊ |
| 113 | finalizeBootStruct(void)␊ |
| 114 | {␊ |
| 115 | uint32_t size;␊ |
| 116 | void *addr;␊ |
| 117 | int i;␊ |
| 118 | EfiMemoryRange *memoryMap;␊ |
| 119 | MemoryRange *range;␊ |
| 120 | int memoryMapCount = bootInfo->memoryMapCount;␊ |
| 121 | ␊ |
| 122 | if (memoryMapCount == 0) {␊ |
| 123 | // XXX could make a two-part map here␊ |
| 124 | stop("Unable to convert memory map into proper format\n");␊ |
| 125 | }␊ |
| 126 | ␊ |
| 127 | // convert memory map to boot_args memory map␊ |
| 128 | memoryMap = (EfiMemoryRange *)AllocateKernelMemory(sizeof(EfiMemoryRange) * memoryMapCount);␊ |
| 129 | bootArgs->MemoryMap = (uint32_t)memoryMap;␊ |
| 130 | bootArgs->MemoryMapSize = sizeof(EfiMemoryRange) * memoryMapCount;␊ |
| 131 | bootArgs->MemoryMapDescriptorSize = sizeof(EfiMemoryRange);␊ |
| 132 | bootArgs->MemoryMapDescriptorVersion = 0;␊ |
| 133 | ␊ |
| 134 | for (i=0; i<memoryMapCount; i++, memoryMap++) {␊ |
| 135 | range = &bootInfo->memoryMap[i];␊ |
| 136 | switch(range->type) {␊ |
| 137 | ␉␉␉case kMemoryRangeACPI:␊ |
| 138 | ␉␉␉␉memoryMap->Type = kEfiACPIReclaimMemory;␊ |
| 139 | ␉␉␉␉break;␊ |
| 140 | ␉␉␉case kMemoryRangeNVS:␊ |
| 141 | ␉␉␉␉memoryMap->Type = kEfiACPIMemoryNVS;␊ |
| 142 | ␉␉␉␉break;␊ |
| 143 | ␉␉␉case kMemoryRangeUsable:␊ |
| 144 | ␉␉␉␉memoryMap->Type = kEfiConventionalMemory;␊ |
| 145 | ␉␉␉␉break;␊ |
| 146 | ␉␉␉case kMemoryRangeReserved:␊ |
| 147 | ␉␉␉default:␊ |
| 148 | ␉␉␉␉memoryMap->Type = kEfiReservedMemoryType;␊ |
| 149 | ␉␉␉␉break;␊ |
| 150 | }␊ |
| 151 | memoryMap->PhysicalStart = range->base;␊ |
| 152 | memoryMap->VirtualStart = range->base;␊ |
| 153 | memoryMap->NumberOfPages = range->length >> I386_PGSHIFT;␊ |
| 154 | memoryMap->Attribute = 0;␊ |
| 155 | }␊ |
| 156 | ␊ |
| 157 | // copy bootFile into device tree␊ |
| 158 | // XXX␊ |
| 159 | ␊ |
| 160 | // add PCI info somehow into device tree␊ |
| 161 | // XXX␊ |
| 162 | ␊ |
| 163 | // Flatten device tree␊ |
| 164 | DT__FlattenDeviceTree(0, &size);␊ |
| 165 | addr = (void *)AllocateKernelMemory(size);␊ |
| 166 | if (addr == 0) {␊ |
| 167 | stop("Couldn't allocate device tree\n");␊ |
| 168 | }␊ |
| 169 | ␊ |
| 170 | DT__FlattenDeviceTree((void **)&addr, &size);␊ |
| 171 | bootArgs->deviceTreeP = (uint32_t)addr;␊ |
| 172 | bootArgs->deviceTreeLength = size;␊ |
| 173 | }␊ |
| 174 | |
