Chameleon

Chameleon Svn Source Tree

Root/trunk/i386/libsaio/bootstruct.c

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#ifndef DEBUG_BOOTSTRUCT␊
33#define DEBUG_BOOTSTRUCT 0␊
34#endif␊
35␊
36#if DEBUG_BOOTSTRUCT␊
37#define DBG(x...)␉printf(x)␊
38#else␊
39#define DBG(x...)␉msglog(x)␊
40#endif␊
41␊
42/*==========================================================================␊
43 * Initialize the structure of parameters passed to␊
44 * the kernel by the booter.␊
45 */␊
46␊
47boot_args␉␉␉*bootArgs;␊
48boot_args_pre_lion␉*bootArgsPreLion;␊
49PrivateBootInfo_t␉*bootInfo;␊
50Node␉␉␉␉*gMemoryMapNode;␊
51␊
52static char platformName[64];␊
53␊
54void initKernBootStruct( void )␊
55{␊
56␉Node *node;␊
57␉int nameLen;␊
58␉static int init_done = 0;␊
59␉␊
60␉if ( !init_done )␊
61␉{␊
62␉␉bootArgs = (boot_args *)malloc(sizeof(boot_args));␊
63␉␉bootArgsPreLion = (boot_args_pre_lion *)malloc(sizeof(boot_args_pre_lion));␊
64␉␉bootInfo = (PrivateBootInfo_t *)malloc(sizeof(PrivateBootInfo_t));␊
65␉␉if (bootArgs == 0 || bootArgsPreLion == 0 || bootInfo == 0)␊
66␉␉␉stop("Couldn't allocate boot info\n");␊
67␉␉␊
68␉␉bzero(bootArgs, sizeof(boot_args));␊
69␉␉bzero(bootArgsPreLion, sizeof(boot_args_pre_lion));␊
70␉␉bzero(bootInfo, sizeof(PrivateBootInfo_t));␊
71␉␉␊
72␉␉// Get system memory map. Also update the size of the␊
73␉␉// conventional/extended memory for backwards compatibility.␊
74␉␉␊
75␉␉bootInfo->memoryMapCount =␊
76␉␉␉getMemoryMap( bootInfo->memoryMap, kMemoryMapCountMax,␊
77␉␉␉␉␉␉ (unsigned long *) &bootInfo->convmem,␊
78␉␉␉␉␉␉ (unsigned long *) &bootInfo->extmem );␊
79␉␉␊
80␉␉if ( bootInfo->memoryMapCount == 0 )␊
81␉␉{␊
82␉␉␉// BIOS did not provide a memory map, systems with␊
83␉␉␉// discontiguous memory or unusual memory hole locations␊
84␉␉␉// may have problems.␊
85␉␉␉␊
86␉␉␉bootInfo->convmem = getConventionalMemorySize();␊
87␉␉␉bootInfo->extmem = getExtendedMemorySize();␊
88␉␉}␊
89␉␉␊
90␉␉bootInfo->configEnd␉ = bootInfo->config;␊
91␉␉bootArgs->Video.v_display = VGA_TEXT_MODE;␊
92␉␉␊
93␉␉DT__Initialize();␊
94␉␉␊
95␉␉node = DT__FindNode("/", true);␊
96␉␉if (node == 0) {␊
97␉␉␉stop("Couldn't create root node");␊
98␉␉}␊
99␉␉getPlatformName(platformName);␊
100␉␉nameLen = strlen(platformName) + 1;␊
101␉␉DT__AddProperty(node, "compatible", nameLen, platformName);␊
102␉␉DT__AddProperty(node, "model", nameLen, platformName);␊
103␉␉␊
104␉␉gMemoryMapNode = DT__FindNode("/chosen/memory-map", true);␊
105␉␉␊
106␉␉bootArgs->Version = kBootArgsVersion;␊
107␉␉bootArgs->Revision = kBootArgsRevision;␊
108␉␉␊
109␉␉bootArgsPreLion->Version = kBootArgsPreLionVersion;␊
110␉␉bootArgsPreLion->Revision = kBootArgsPreLionRevision;␊
111␉␉␊
112␉␉init_done = 1;␊
113␉}␊
114}␊
115␊
116␊
117/* Copy boot args after kernel and record address. */␊
118␊
119void␊
120reserveKernBootStruct(void)␊
121{␊
122␉if ((gMacOSVersion[0] == '1') && (gMacOSVersion[1] == '0')␊
123␉␉&& (gMacOSVersion[2] == '.') && (gMacOSVersion[3] == '7' || gMacOSVersion[3] == '8' || gMacOSVersion[3] == '9'))␊
124␉{␊
125␉␉void *oldAddr = bootArgs;␊
126␉␉bootArgs = (boot_args *)AllocateKernelMemory(sizeof(boot_args));␊
127␉␉bcopy(oldAddr, bootArgs, sizeof(boot_args));␊
128␉} else {␊
129␉␉void *oldAddr = bootArgsPreLion;␊
130␉␉bootArgsPreLion = (boot_args_pre_lion *)AllocateKernelMemory(sizeof(boot_args_pre_lion));␊
131␉␉bcopy(oldAddr, bootArgsPreLion, sizeof(boot_args_pre_lion));␊
132␉}␊
133}␊
134␊
135void␊
136finalizeBootStruct(void)␊
137{␊
138␉uint32_t size;␊
139␉void *addr;␊
140␉int i;␊
141␉EfiMemoryRange *memoryMap;␊
142␉MemoryRange *range;␊
143␉int memoryMapCount = bootInfo->memoryMapCount;␊
144␉␊
145␉if (memoryMapCount == 0) {␊
146␉␉// XXX could make a two-part map here␊
147␉␉stop("Unable to convert memory map into proper format\n");␊
148␉}␊
149␉␊
150␉// convert memory map to boot_args memory map␊
151␉memoryMap = (EfiMemoryRange *)AllocateKernelMemory(sizeof(EfiMemoryRange) * memoryMapCount);␊
152␉bootArgs->MemoryMap = (uint32_t)memoryMap;␊
153␉bootArgs->MemoryMapSize = sizeof(EfiMemoryRange) * memoryMapCount;␊
154␉bootArgs->MemoryMapDescriptorSize = sizeof(EfiMemoryRange);␊
155␉bootArgs->MemoryMapDescriptorVersion = 0;␊
156␉␊
157␉for (i = 0; i < memoryMapCount; i++, memoryMap++)␊
158␉{␊
159␉␉range = &bootInfo->memoryMap[i];␊
160␉␉switch(range->type) {␊
161␉␉␉case kMemoryRangeACPI:␊
162␉␉␉␉memoryMap->Type = kEfiACPIReclaimMemory;␊
163␉␉␉␉break;␊
164␉␉␉case kMemoryRangeNVS:␊
165␉␉␉␉memoryMap->Type = kEfiACPIMemoryNVS;␊
166␉␉␉␉break;␊
167␉␉␉case kMemoryRangeUsable:␊
168␉␉␉␉memoryMap->Type = kEfiConventionalMemory;␊
169␉␉␉␉break;␊
170␉␉␉case kMemoryRangeReserved:␊
171␉␉␉default:␊
172␉␉␉␉memoryMap->Type = kEfiReservedMemoryType;␊
173␉␉␉␉break;␊
174␉␉}␊
175␉␉memoryMap->PhysicalStart = range->base;␊
176␉␉memoryMap->VirtualStart = range->base;␊
177␉␉memoryMap->NumberOfPages = range->length >> I386_PGSHIFT;␊
178␉␉memoryMap->Attribute = 0;␊
179␉}␊
180␉␊
181␉// copy bootFile into device tree␊
182␉// XXX␊
183␉␊
184␉// add PCI info somehow into device tree␊
185␉// XXX␊
186␉␊
187␉// Flatten device tree␊
188␉DT__FlattenDeviceTree(0, &size);␊
189␉addr = (void *)AllocateKernelMemory(size);␊
190␉if (addr == 0) {␊
191␉␉stop("Couldn't allocate device tree\n");␊
192␉}␊
193␉␊
194␉DT__FlattenDeviceTree((void **)&addr, &size);␊
195␉bootArgs->deviceTreeP = (uint32_t)addr;␊
196␉bootArgs->deviceTreeLength = size;␊
197␊
198␉// Copy BootArgs values to older structure␊
199␉␊
200␉memcpy(&bootArgsPreLion->CommandLine, &bootArgs->CommandLine, BOOT_LINE_LENGTH);␊
201␉memcpy(&bootArgsPreLion->Video, &bootArgs->Video, sizeof(Boot_Video));␊
202␉␊
203␉bootArgsPreLion->MemoryMap = bootArgs->MemoryMap;␊
204␉bootArgsPreLion->MemoryMapSize = bootArgs->MemoryMapSize;␊
205␉bootArgsPreLion->MemoryMapDescriptorSize = bootArgs->MemoryMapDescriptorSize;␊
206␉bootArgsPreLion->MemoryMapDescriptorVersion = bootArgs->MemoryMapDescriptorVersion;␊
207␉␊
208␉bootArgsPreLion->deviceTreeP = bootArgs->deviceTreeP;␊
209␉bootArgsPreLion->deviceTreeLength = bootArgs->deviceTreeLength;␊
210␉␊
211␉bootArgsPreLion->kaddr = bootArgs->kaddr;␊
212␉bootArgsPreLion->ksize = bootArgs->ksize;␊
213␉␊
214␉bootArgsPreLion->efiRuntimeServicesPageStart = bootArgs->efiRuntimeServicesPageStart;␊
215␉bootArgsPreLion->efiRuntimeServicesPageCount = bootArgs->efiRuntimeServicesPageCount;␊
216␉bootArgsPreLion->efiSystemTable = bootArgs->efiSystemTable;␊
217␉␊
218␉bootArgsPreLion->efiMode = bootArgs->efiMode;␊
219␉␊
220␉bootArgsPreLion->performanceDataStart = bootArgs->performanceDataStart;␊
221␉bootArgsPreLion->performanceDataSize = bootArgs->performanceDataSize;␊
222␉bootArgsPreLion->efiRuntimeServicesVirtualPageStart = bootArgs->efiRuntimeServicesVirtualPageStart;␊
223}␊
224

Archive Download this file

Revision: 2390