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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#include "platform.h"␊
32␊
33/*==========================================================================␊
34 * Initialize the structure of parameters passed to␊
35 * the kernel by the booter.␊
36 */␊
37boot_args_legacy *bootArgsLegacy;␊
38boot_args *bootArgs;␊
39PrivateBootInfo_t *bootInfo;␊
40Node *gMemoryMapNode;␊
41␊
42static char platformName[64];␊
43␊
44void initKernBootStruct( void )␊
45{␊
46 Node *node;␊
47 int nameLen;␊
48 static int init_done = 0;␊
49␊
50 if ( !init_done )␊
51 {␉␉␉␊
52 bootArgs = (boot_args *)malloc(sizeof(boot_args));␊
53 bootInfo = (PrivateBootInfo_t *)malloc(sizeof(PrivateBootInfo_t));␊
54 if (bootArgs == 0 || bootInfo == 0)␊
55 stop("Couldn't allocate boot info\n");␊
56␊
57 bzero(bootArgs, sizeof(boot_args));␊
58 bzero(bootInfo, sizeof(PrivateBootInfo_t));␊
59␊
60 // Get system memory map. Also update the size of the␊
61 // conventional/extended memory for backwards compatibility.␊
62␉␉␊
63␉␉␉␊
64 bootInfo->memoryMapCount =␊
65 getMemoryMap( bootInfo->memoryMap, kMemoryMapCountMax,␊
66 (unsigned long *) &bootInfo->convmem,␊
67 (unsigned long *) &bootInfo->extmem );␊
68␉␉␊
69␉␉␊
70␊
71 if ( bootInfo->memoryMapCount == 0 )␊
72 {␊
73 // BIOS did not provide a memory map, systems with␊
74 // discontiguous memory or unusual memory hole locations␊
75 // may have problems.␊
76␊
77 bootInfo->convmem = getConventionalMemorySize();␊
78 bootInfo->extmem = getExtendedMemorySize();␉␉␉␊
79␉␉␉␊
80 }␊
81␉␉␉␉␉␉␊
82 bootInfo->configEnd = bootInfo->config;␊
83 bootArgs->Video.v_display = VGA_TEXT_MODE;␊
84 ␊
85 DT__Initialize();␊
86␊
87 node = DT__FindNode("/", true);␊
88 if (node == 0) {␊
89 stop("Couldn't create root node");␊
90 }␊
91 getPlatformName(platformName);␊
92 nameLen = strlen(platformName) + 1;␊
93 DT__AddProperty(node, "compatible", nameLen, platformName);␊
94 DT__AddProperty(node, "model", nameLen, platformName);␊
95␊
96 gMemoryMapNode = DT__FindNode("/chosen/memory-map", true);␊
97 ␊
98 init_done = 1;␊
99 }␊
100␊
101}␊
102␊
103␊
104/* Copy boot args after kernel and record address. */␊
105␊
106void␊
107reserveKernBootStruct(void)␊
108{␊
109 void *oldAddr = bootArgs;␉␊
110␉␊
111 bootArgs = (boot_args *)AllocateKernelMemory(sizeof(boot_args));␊
112 bcopy(oldAddr, bootArgs, sizeof(boot_args));␊
113␉␉␊
114}␊
115␊
116void␊
117reserveKernLegacyBootStruct(void)␊
118{ ␊
119 bootArgsLegacy = (boot_args_legacy *)AllocateKernelMemory(sizeof(boot_args_legacy));␊
120 ␊
121␉bootArgsLegacy->Revision = bootArgs->Revision ;␊
122␉bootArgsLegacy->Version = bootArgs->Version ;␊
123␉bcopy(bootArgs->CommandLine, bootArgsLegacy->CommandLine, BOOT_LINE_LENGTH);␊
124␉bootArgsLegacy->MemoryMap = bootArgs->MemoryMap ;␊
125␉bootArgsLegacy->MemoryMapSize = bootArgs->MemoryMapSize ;␊
126␉bootArgsLegacy->MemoryMapDescriptorSize = bootArgs->MemoryMapDescriptorSize ;␊
127␉bootArgsLegacy->MemoryMapDescriptorVersion = bootArgs->MemoryMapDescriptorVersion ;␊
128␉bootArgsLegacy->Video = bootArgs->Video ;␊
129␉bootArgsLegacy->deviceTreeP = bootArgs->deviceTreeP ;␊
130␉bootArgsLegacy->deviceTreeLength = bootArgs->deviceTreeLength ;␊
131␉bootArgsLegacy->kaddr = bootArgs->kaddr ;␊
132␉bootArgsLegacy->ksize = bootArgs->ksize ;␊
133␉bootArgsLegacy->efiRuntimeServicesPageStart = bootArgs->efiRuntimeServicesPageStart ;␊
134␉bootArgsLegacy->efiRuntimeServicesPageCount = bootArgs->efiRuntimeServicesPageCount ;␊
135␉bootArgsLegacy->efiSystemTable = bootArgs->efiSystemTable ;␊
136␉bootArgsLegacy->efiMode = bootArgs->efiMode ;␊
137␉bootArgsLegacy->performanceDataStart = bootArgs->performanceDataStart ;␊
138␉bootArgsLegacy->performanceDataSize = bootArgs->performanceDataSize ;␊
139␉bootArgsLegacy->efiRuntimeServicesVirtualPageStart = bootArgs->efiRuntimeServicesVirtualPageStart ;␊
140␊
141␉␊
142}␊
143␊
144void␊
145finalizeBootStruct(void)␊
146{␊
147 uint32_t size;␊
148 void *addr;␊
149 int i;␊
150 EfiMemoryRange *memoryMap;␊
151 MemoryRange *range;␊
152␉uint64_t␉sane_size = 0; /* Memory size to use for defaults calculations */␊
153␉␊
154 int memoryMapCount = bootInfo->memoryMapCount;␊
155␊
156 if (memoryMapCount == 0) {␊
157␉␉␊
158 // XXX could make a two-part map here␊
159 stop("No memory map found\n");␊
160 }␊
161 ␊
162 ␊
163␊
164 // convert memory map to boot_args memory map␊
165 memoryMap = (EfiMemoryRange *)AllocateKernelMemory(sizeof(EfiMemoryRange) * memoryMapCount);␊
166 if (memoryMap == NULL) {␊
167␉␉␊
168 stop("Unable to allocate kernel space for the memory map\n");␊
169 }␊
170 bootArgs->MemoryMap = (uint32_t)memoryMap;␊
171 bootArgs->MemoryMapSize = sizeof(EfiMemoryRange) * memoryMapCount;␊
172 bootArgs->MemoryMapDescriptorSize = sizeof(EfiMemoryRange);␊
173 bootArgs->MemoryMapDescriptorVersion = 0;␊
174␊
175 for (i=0; i<memoryMapCount; i++, memoryMap++) {␊
176 range = &bootInfo->memoryMap[i];␊
177 switch(range->type) {␊
178␉␉␉case kMemoryRangeACPI:␊
179␉␉␉␉memoryMap->Type = kEfiACPIReclaimMemory;␊
180␉␉␉␉break;␊
181␉␉␉case kMemoryRangeNVS:␊
182␉␉␉␉memoryMap->Type = kEfiACPIMemoryNVS;␊
183␉␉␉␉break;␊
184␉␉␉case kMemoryRangeUsable:␊
185␉␉␉␉memoryMap->Type = kEfiConventionalMemory;␊
186␉␉␉␉break;␊
187␉␉␉case kMemoryRangeReserved:␊
188␉␉␉default:␊
189␉␉␉␉memoryMap->Type = kEfiReservedMemoryType;␊
190␉␉␉␉break;␊
191 }␊
192 memoryMap->PhysicalStart = range->base;␊
193 memoryMap->VirtualStart = range->base;␊
194 memoryMap->NumberOfPages = range->length >> I386_PGSHIFT;␊
195 memoryMap->Attribute = 0;␊
196␉␉␊
197␉␉switch (memoryMap->Type) {␊
198␉␉␉case kEfiLoaderCode:␊
199␉␉␉case kEfiLoaderData:␊
200␉␉␉case kEfiBootServicesCode:␊
201␉␉␉case kEfiBootServicesData:␊
202␉␉␉case kEfiConventionalMemory:␊
203␉␉ /*␊
204␉␉␉␉ * Consolidate usable memory types into one.␊
205␉␉␉␉ */␊
206␉␉ sane_size += (uint64_t)(memoryMap->NumberOfPages << I386_PGSHIFT);␊
207␉␉␉␉break;␊
208␉␉␉␉␊
209␉␉␉case kEfiRuntimeServicesCode:␊
210␉␉␉case kEfiRuntimeServicesData:␊
211␉␉␉case kEfiACPIReclaimMemory:␊
212␉␉␉case kEfiACPIMemoryNVS:␊
213␉␉␉case kEfiPalCode:␊
214␉␉␉␉/*␊
215␉␉␉␉ * sane_size should reflect the total amount of physical ram␊
216␉␉␉␉ * in the system, not just the amount that is available for␊
217␉␉␉␉ * the OS to use␊
218␉␉␉␉ */␊
219␉␉ sane_size += (uint64_t)(memoryMap->NumberOfPages << I386_PGSHIFT);␊
220␉␉␉␉break;␊
221␉␉␉default:␊
222␉␉␉␉break;␊
223␉␉␉␉␊
224␉␉}␊
225 }␊
226 ␊
227␉if (sane_size == 0) {␊
228␉␉␊
229 // I Guess that if sane_size == 0 we've got a big problem here, ␊
230 // and it means that the memory map was not converted properly␊
231 stop("Unable to convert memory map into proper format\n");␊
232 }␊
233 ␊
234#define MEG␉␉(1024*1024)␊
235␉␊
236␉/*␊
237␉ * For user visible memory size, round up to 128 Mb - accounting for the various stolen memory␊
238␉ * not reported by EFI.␊
239␉ */␊
240␉␊
241␉sane_size = (sane_size + 128 * MEG - 1) & ~((uint64_t)(128 * MEG - 1));␊
242␉bootArgs->PhysicalMemorySize = sane_size;␊
243␉bootArgs->FSBFrequency = Platform->CPU.FSBFrequency;␊
244␉␉␊
245 // add PCI info somehow into device tree␊
246 // XXX␊
247␉␉␉␊
248 // Flatten device tree␊
249 DT__FlattenDeviceTree(0, &size);␊
250 addr = (void *)AllocateKernelMemory(size);␊
251 if (addr == 0) {␊
252 stop("Couldn't allocate device tree\n");␊
253 }␊
254 ␊
255 DT__FlattenDeviceTree((void **)&addr, &size);␊
256 bootArgs->deviceTreeP = (uint32_t)addr;␊
257 bootArgs->deviceTreeLength = size; ␊
258 ␊
259}␊
260

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