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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␊
33boot_args_common *bootArgs = NULL;␊
34␊
35␊
36/*==========================================================================␊
37 * structure of parameters passed to␊
38 * the kernel by the booter.␊
39 */␊
40boot_args_Legacy *bootArgsLegacy = NULL;␊
41boot_args_107 *bootArgs107 = NULL;␊
42boot_args_108 *bootArgs108 = NULL;␊
43/* ... */␊
44␊
45PrivateBootInfo_t *bootInfo = NULL;␊
46Node *gMemoryMapNode = NULL;␊
47␊
48static char platformName[64];␊
49static MemoryRange memoryMap[kMemoryMapCountMax];␊
50␊
51void initKernBootStruct( void )␊
52{ ␊
53 static int init_done = 0;␊
54 ␊
55 if ( !init_done )␊
56 {␉␉␉␊
57␉␉int convmem; // conventional memory␊
58␉␉int extmem; // extended memory␊
59␉␉␊
60␉␉unsigned long memoryMapCount = 0;␊
61␉␉␊
62 bootArgs = (boot_args_common *)malloc(sizeof(boot_args_common));␊
63 bootInfo = (PrivateBootInfo_t *)malloc(sizeof(PrivateBootInfo_t));␊
64 if (bootArgs == NULL || bootInfo == NULL)␊
65 stop("Couldn't allocate boot info\n");␊
66 else␊
67 {␊
68 bzero(bootArgs, sizeof(boot_args_common));␊
69 bzero(bootInfo, sizeof(PrivateBootInfo_t));␊
70 ␊
71 // Get system memory map. Also update the size of the␊
72 // conventional/extended memory for backwards compatibility.␊
73 ␊
74 ␊
75 memoryMapCount =␊
76 getMemoryMap( memoryMap, kMemoryMapCountMax,␊
77 (unsigned long *) &convmem,␊
78 (unsigned long *) &extmem );␊
79 ␊
80 ␊
81 ␊
82 if ( memoryMapCount == 0 )␊
83 {␊
84 // BIOS did not provide a memory map, systems with␊
85 // discontiguous memory or unusual memory hole locations␊
86 // may have problems.␊
87 ␊
88 convmem = getConventionalMemorySize();␊
89 extmem = getExtendedMemorySize();␉␉␉␊
90 ␊
91 }␊
92␉␉␉␊
93 bootArgs->Video.v_display = VGA_TEXT_MODE;␊
94 ␊
95 DT__Initialize();␊
96 ␊
97 {␊
98 Node *node;␊
99 node = DT__FindNode("/", true);␊
100 if (node == 0) {␊
101 stop("Couldn't create root node");␊
102 }␊
103 getPlatformName(platformName);␊
104 ␊
105 {␊
106 int nameLen;␊
107 nameLen = strlen(platformName) + 1;␊
108 DT__AddProperty(node, "compatible", nameLen, platformName);␊
109 DT__AddProperty(node, "model", nameLen, platformName);␊
110 } ␊
111 }␉␉ ␊
112 ␊
113 gMemoryMapNode = DT__FindNode("/chosen/memory-map", true);␊
114 ␊
115 set_env(envConvMem, convmem);␊
116 set_env(envExtMem, extmem);␊
117 set_env(envMemoryMap, (uint32_t)memoryMap);␊
118 set_env(envMemoryMapCnt, memoryMapCount);␊
119 ␊
120 ␊
121 init_done = 1;␊
122 }␊
123 ␊
124 }␊
125 ␊
126}␊
127␊
128/* boot args getters/setters. */␊
129␊
130void setBootArgsVideoMode(int mode)␊
131{␊
132 bootArgs->Video.v_display = mode;␊
133}␊
134uint32_t getVideoMode(void)␊
135{␊
136 return bootArgs->Video.v_display;␊
137}␊
138void setBootArgsVideoStruct(Boot_Video␉*Video)␊
139{␊
140 bootArgs->Video.v_display = Video->v_display;␊
141 bootArgs->Video.v_width = Video->v_width;␊
142 bootArgs->Video.v_height = Video->v_height;␊
143 bootArgs->Video.v_depth = Video->v_depth;␊
144 bootArgs->Video.v_rowBytes = Video->v_rowBytes;␊
145 bootArgs->Video.v_baseAddr = Video->v_baseAddr;␊
146 return;␊
147}␊
148boot_args_common * getBootArgs(void)␊
149{␊
150 return bootArgs;␊
151}␊
152␊
153#define AllocateKernelMemoryForBootArgs(Ver) \␊
154{ \␊
155bootArgs##Ver = (boot_args_##Ver *)AllocateKernelMemory(sizeof(boot_args_##Ver));\␊
156}␊
157␊
158#define CopyCommonBootArgsHeader(Ver) \␊
159{ \␊
160bootArgs##Ver->Revision = bootArgs->Header.Revision ;\␊
161bootArgs##Ver->Version = bootArgs->Header.Version ;\␊
162}␊
163␊
164// For 10.6, 10.5 and 10.4 please use :Legacy:, for 10.7 use :107:, for 10.8 use :108:␊
165#define CopyCommonBootArgs(Ver) \␊
166{ \␊
167bcopy(bootArgs->CommandLine, bootArgs##Ver->CommandLine, BOOT_LINE_LENGTH);\␊
168bootArgs##Ver->MemoryMap = bootArgs->MemoryMap ;\␊
169bootArgs##Ver->MemoryMapSize = bootArgs->MemoryMapSize ;\␊
170bootArgs##Ver->MemoryMapDescriptorSize = bootArgs->MemoryMapDescriptorSize ;\␊
171bootArgs##Ver->MemoryMapDescriptorVersion = bootArgs->MemoryMapDescriptorVersion ;\␊
172bootArgs##Ver->Video = bootArgs->Video ;\␊
173bootArgs##Ver->deviceTreeP = bootArgs->deviceTreeP ;\␊
174bootArgs##Ver->deviceTreeLength = bootArgs->deviceTreeLength ;\␊
175bootArgs##Ver->kaddr = bootArgs->kaddr ;\␊
176bootArgs##Ver->ksize = bootArgs->ksize ;\␊
177bootArgs##Ver->efiRuntimeServicesPageStart = bootArgs->efiRuntimeServicesPageStart ;\␊
178bootArgs##Ver->efiRuntimeServicesPageCount = bootArgs->efiRuntimeServicesPageCount ;\␊
179bootArgs##Ver->efiSystemTable = bootArgs->efiSystemTable ;\␊
180bootArgs##Ver->efiMode = bootArgs->efiMode ;\␊
181bootArgs##Ver->performanceDataStart = bootArgs->performanceDataStart ;\␊
182bootArgs##Ver->performanceDataSize = bootArgs->performanceDataSize ;\␊
183bootArgs##Ver->efiRuntimeServicesVirtualPageStart = bootArgs->efiRuntimeServicesVirtualPageStart ;\␊
184}␊
185␊
186/* ␊
187 * Darwin 10.7+ specific boot arguments ␊
188 *␊
189 * for 10.7 use :107:, for 10.8 use :108:␊
190 */␊
191#define Copy107plusBootArgs(Ver) \␊
192{ \␊
193bootArgs##Ver->keyStoreDataStart = bootArgs->keyStoreDataStart ;\␊
194bootArgs##Ver->keyStoreDataSize = bootArgs->keyStoreDataSize ;\␊
195bootArgs##Ver->bootMemStart = bootArgs->bootMemStart ;\␊
196bootArgs##Ver->bootMemSize = bootArgs->bootMemSize ;\␊
197bootArgs##Ver->PhysicalMemorySize = bootArgs->PhysicalMemorySize ;\␊
198bootArgs##Ver->FSBFrequency = bootArgs->FSBFrequency ;\␊
199bootArgs##Ver->debugMode = bootArgs->debugMode ;\␊
200}␊
201␊
202#define init_boot_args(Ver) \␊
203{ \␊
204AllocateKernelMemoryForBootArgs(Ver);\␊
205CopyCommonBootArgsHeader(Ver);\␊
206CopyCommonBootArgs(Ver);\␊
207}␊
208␊
209/* Copy boot args after kernel and record address. */␊
210␊
211void␊
212reserveKern107BootStruct(void)␊
213{␉␊
214␉init_boot_args(107);␊
215␉Copy107plusBootArgs(107);␊
216}␊
217␊
218void␊
219reserveKern108BootStruct(void)␊
220{␉␊
221␉init_boot_args(108);␉␊
222␉Copy107plusBootArgs(108);␊
223␉␊
224␉/* Darwin 10.8 specific boot arguments */␉␉␊
225}␊
226␊
227void␊
228reserveKernLegacyBootStruct(void)␊
229{␊
230␉init_boot_args(Legacy);␊
231}␊
232␊
233void␊
234finalizeBootStruct(void)␊
235{ ␊
236␉{␊
237␉␉int i;␊
238␉␉EfiMemoryRange *kMemoryMap = NULL;␊
239␉␉MemoryRange *range = NULL;␊
240␉␉␊
241␉␉uint64_t␉sane_size = 0; /* Memory size to use for defaults calculations */␊
242␉␉␊
243␉␉int memoryMapCount = (int)get_env(envMemoryMapCnt);␊
244␉␉␊
245␉␉if (memoryMapCount == 0) {␊
246␉␉␉␊
247␉␉␉// XXX could make a two-part map here␊
248␉␉␉stop("No memory map found\n");␊
249␉␉}␊
250␉␉␊
251␉␉␊
252␉␉␊
253␉␉// convert memory map to boot_args memory map␊
254␉␉kMemoryMap = (EfiMemoryRange *)AllocateKernelMemory(sizeof(EfiMemoryRange) * memoryMapCount);␊
255␉␉if (kMemoryMap == NULL) {␊
256␉␉␉␊
257␉␉␉stop("Unable to allocate kernel space for the memory map\n");␊
258 return;␊
259␉␉}␊
260␉␉bootArgs->MemoryMap = (uint32_t)kMemoryMap;␊
261␉␉bootArgs->MemoryMapSize = sizeof(EfiMemoryRange) * memoryMapCount;␊
262␉␉bootArgs->MemoryMapDescriptorSize = sizeof(EfiMemoryRange);␊
263␉␉bootArgs->MemoryMapDescriptorVersion = 0;␊
264␉␉␊
265␉␉for (i=0; i<memoryMapCount; i++, kMemoryMap++) {␊
266␉␉␉range = &memoryMap[i];␊
267 if (!range || !kMemoryMap) {␊
268 stop("Error while computing kernel memory map\n");␊
269 return;␊
270 }␊
271␉␉␉switch(range->type) {␊
272␉␉␉␉case kMemoryRangeACPI:␊
273␉␉␉␉␉kMemoryMap->Type = kEfiACPIReclaimMemory;␊
274␉␉␉␉␉break;␊
275␉␉␉␉case kMemoryRangeNVS:␊
276␉␉␉␉␉kMemoryMap->Type = kEfiACPIMemoryNVS;␊
277␉␉␉␉␉break;␊
278␉␉␉␉case kMemoryRangeUsable:␊
279␉␉␉␉␉kMemoryMap->Type = kEfiConventionalMemory;␊
280␉␉␉␉␉break;␊
281␉␉␉␉case kMemoryRangeReserved:␊
282␉␉␉␉default:␊
283␉␉␉␉␉kMemoryMap->Type = kEfiReservedMemoryType;␊
284␉␉␉␉␉break;␊
285␉␉␉}␊
286␉␉␉kMemoryMap->PhysicalStart = range->base;␊
287␉␉␉kMemoryMap->VirtualStart = range->base;␊
288␉␉␉kMemoryMap->NumberOfPages = range->length >> I386_PGSHIFT;␊
289␉␉␉kMemoryMap->Attribute = 0;␊
290␉␉␉␊
291␉␉␉switch (kMemoryMap->Type) {␊
292␉␉␉␉case kEfiLoaderCode:␊
293␉␉␉␉case kEfiLoaderData:␊
294␉␉␉␉case kEfiBootServicesCode:␊
295␉␉␉␉case kEfiBootServicesData:␊
296␉␉␉␉case kEfiConventionalMemory:␊
297␉␉␉␉␉/*␊
298␉␉␉␉␉ * Consolidate usable memory types into one.␊
299␉␉␉␉␉ */␊
300␉␉␉␉␉sane_size += (uint64_t)(kMemoryMap->NumberOfPages << I386_PGSHIFT);␊
301␉␉␉␉␉break;␊
302␉␉␉␉␉␊
303␉␉␉␉case kEfiRuntimeServicesCode:␊
304␉␉␉␉case kEfiRuntimeServicesData:␊
305␉␉␉␉case kEfiACPIReclaimMemory:␊
306␉␉␉␉case kEfiACPIMemoryNVS:␊
307␉␉␉␉case kEfiPalCode:␊
308␉␉␉␉␉/*␊
309␉␉␉␉␉ * sane_size should reflect the total amount of physical ram␊
310␉␉␉␉␉ * in the system, not just the amount that is available for␊
311␉␉␉␉␉ * the OS to use␊
312␉␉␉␉␉ */␊
313␉␉␉␉␉sane_size += (uint64_t)(kMemoryMap->NumberOfPages << I386_PGSHIFT);␊
314␉␉␉␉␉break;␊
315␉␉␉␉default:␊
316␉␉␉␉␉break;␊
317␉␉␉␉␉␊
318␉␉␉}␊
319␉␉}␊
320␉␉␊
321␉␉if (sane_size == 0) {␊
322␉␉␉␊
323␉␉␉// I Guess that if sane_size == 0 we've got a big problem here, ␊
324␉␉␉// and it means that the memory map was not converted properly␊
325␉␉␉stop("Unable to convert memory map into proper format\n");␊
326␉␉}␊
327␉␉␊
328#define MEG␉␉(1024*1024)␊
329␉␉␊
330␉␉/*␊
331␉␉ * For user visible memory size, round up to 128 Mb - accounting for the various stolen memory␊
332␉␉ * not reported by EFI.␊
333␉␉ */␊
334␉␉␊
335␉␉sane_size = (sane_size + 128 * MEG - 1) & ~((uint64_t)(128 * MEG - 1));␊
336␉␉bootArgs->PhysicalMemorySize = sane_size;␊
337␉␉bootArgs->FSBFrequency = get_env(envFSBFreq);␊
338 ␊
339␉}␉␊
340 ␊
341 ␊
342␉{␊
343␉␉uint32_t size;␊
344␉␉void *addr;␊
345␉␉// Flatten device tree␊
346␉␉DT__FlattenDeviceTree(0, &size);␊
347␉␉addr = (void *)AllocateKernelMemory(size);␊
348␉␉if (addr == 0) {␊
349␉␉␉stop("Couldn't allocate device tree\n");␊
350␉␉}␊
351␉␉␊
352␉␉DT__FlattenDeviceTree((void **)&addr, &size);␊
353␉␉bootArgs->deviceTreeP = (uint32_t)addr;␊
354␉␉bootArgs->deviceTreeLength = size;␊
355␉} ␊
356 ␊
357}␊
358

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