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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;␊
46//Node *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 Node *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␉␉␉set_env(envMemoryMapNode, (uint32_t)gMemoryMapNode);␊
120␊
121 ␊
122 init_done = 1;␊
123 }␊
124 ␊
125 }␊
126 ␊
127}␊
128␊
129/* boot args getters/setters. */␊
130␊
131void setBootArgsVideoMode(int mode)␊
132{␊
133 bootArgs->Video.v_display = mode;␊
134}␊
135//==========================================================================␊
136// Return the current video mode.␊
137uint32_t getVideoMode(void)␊
138{␊
139 return bootArgs->Video.v_display;␊
140}␊
141void setBootArgsVideoStruct(Boot_Video␉*Video)␊
142{␊
143 bootArgs->Video.v_display = Video->v_display;␊
144 bootArgs->Video.v_width = Video->v_width;␊
145 bootArgs->Video.v_height = Video->v_height;␊
146 bootArgs->Video.v_depth = Video->v_depth;␊
147 bootArgs->Video.v_rowBytes = Video->v_rowBytes;␊
148 bootArgs->Video.v_baseAddr = Video->v_baseAddr;␊
149 return;␊
150}␊
151boot_args_common * getBootArgs(void)␊
152{␊
153 return bootArgs;␊
154}␊
155␊
156#define AllocateKernelMemoryForBootArgs(Ver) \␊
157{ \␊
158bootArgs##Ver = (boot_args_##Ver *)AllocateKernelMemory(sizeof(boot_args_##Ver));\␊
159}␊
160␊
161#define CopyCommonBootArgsHeader(Ver) \␊
162{ \␊
163bootArgs##Ver->Revision = bootArgs->Header.Revision ;\␊
164bootArgs##Ver->Version = bootArgs->Header.Version ;\␊
165}␊
166␊
167// For 10.6, 10.5 and 10.4 please use :Legacy:, for 10.7 use :107:, for 10.8 use :108:␊
168#define CopyCommonBootArgs(Ver) \␊
169{ \␊
170bcopy(bootArgs->CommandLine, bootArgs##Ver->CommandLine, BOOT_LINE_LENGTH);\␊
171bootArgs##Ver->MemoryMap = bootArgs->MemoryMap ;\␊
172bootArgs##Ver->MemoryMapSize = bootArgs->MemoryMapSize ;\␊
173bootArgs##Ver->MemoryMapDescriptorSize = bootArgs->MemoryMapDescriptorSize ;\␊
174bootArgs##Ver->MemoryMapDescriptorVersion = bootArgs->MemoryMapDescriptorVersion ;\␊
175bootArgs##Ver->Video = bootArgs->Video ;\␊
176bootArgs##Ver->deviceTreeP = bootArgs->deviceTreeP ;\␊
177bootArgs##Ver->deviceTreeLength = bootArgs->deviceTreeLength ;\␊
178bootArgs##Ver->kaddr = bootArgs->kaddr ;\␊
179bootArgs##Ver->ksize = bootArgs->ksize ;\␊
180bootArgs##Ver->efiRuntimeServicesPageStart = bootArgs->efiRuntimeServicesPageStart ;\␊
181bootArgs##Ver->efiRuntimeServicesPageCount = bootArgs->efiRuntimeServicesPageCount ;\␊
182bootArgs##Ver->efiSystemTable = bootArgs->efiSystemTable ;\␊
183bootArgs##Ver->efiMode = bootArgs->efiMode ;\␊
184bootArgs##Ver->performanceDataStart = bootArgs->performanceDataStart ;\␊
185bootArgs##Ver->performanceDataSize = bootArgs->performanceDataSize ;\␊
186bootArgs##Ver->efiRuntimeServicesVirtualPageStart = bootArgs->efiRuntimeServicesVirtualPageStart ;\␊
187}␊
188␊
189/* ␊
190 * Darwin 10.7+ specific boot arguments ␊
191 *␊
192 * for 10.7 use :107:, for 10.8 use :108:␊
193 */␊
194#define Copy107plusBootArgs(Ver) \␊
195{ \␊
196bootArgs##Ver->keyStoreDataStart = bootArgs->keyStoreDataStart ;\␊
197bootArgs##Ver->keyStoreDataSize = bootArgs->keyStoreDataSize ;\␊
198bootArgs##Ver->bootMemStart = bootArgs->bootMemStart ;\␊
199bootArgs##Ver->bootMemSize = bootArgs->bootMemSize ;\␊
200bootArgs##Ver->PhysicalMemorySize = bootArgs->PhysicalMemorySize ;\␊
201bootArgs##Ver->FSBFrequency = bootArgs->FSBFrequency ;\␊
202bootArgs##Ver->debugMode = bootArgs->debugMode ;\␊
203}␊
204␊
205#define init_boot_args(Ver) \␊
206{ \␊
207AllocateKernelMemoryForBootArgs(Ver);\␊
208CopyCommonBootArgsHeader(Ver);\␊
209CopyCommonBootArgs(Ver);\␊
210}␊
211␊
212/* Copy boot args after kernel and record address. */␊
213␊
214void␊
215reserveKern107BootStruct(void)␊
216{␉␊
217␉init_boot_args(107);␊
218␉Copy107plusBootArgs(107);␊
219}␊
220␊
221void␊
222reserveKern108BootStruct(void)␊
223{␉␊
224␉init_boot_args(108);␉␊
225␉Copy107plusBootArgs(108);␊
226␉␊
227␉/* Darwin 10.8 specific boot arguments */␉␉␊
228}␊
229␊
230void␊
231reserveKernLegacyBootStruct(void)␊
232{␊
233␉init_boot_args(Legacy);␊
234}␊
235␊
236void␊
237finalizeBootStruct(void)␊
238{ ␊
239␉{␊
240␉␉int i;␊
241␉␉EfiMemoryRange *kMemoryMap = NULL;␊
242␉␉MemoryRange *range = NULL;␊
243␉␉␊
244␉␉uint64_t␉sane_size = 0; /* Memory size to use for defaults calculations */␊
245␉␉␊
246␉␉int memoryMapCount = (int)get_env(envMemoryMapCnt);␊
247␉␉␊
248␉␉if (memoryMapCount == 0) {␊
249␉␉␉␊
250␉␉␉// XXX could make a two-part map here␊
251␉␉␉stop("No memory map found\n");␊
252␉␉}␊
253␉␉␊
254␉␉␊
255␉␉␊
256␉␉// convert memory map to boot_args memory map␊
257␉␉kMemoryMap = (EfiMemoryRange *)AllocateKernelMemory(sizeof(EfiMemoryRange) * memoryMapCount);␊
258␉␉if (kMemoryMap == NULL) {␊
259␉␉␉␊
260␉␉␉stop("Unable to allocate kernel space for the memory map\n");␊
261 return;␊
262␉␉}␊
263␉␉bootArgs->MemoryMap = (uint32_t)kMemoryMap;␊
264␉␉bootArgs->MemoryMapSize = sizeof(EfiMemoryRange) * memoryMapCount;␊
265␉␉bootArgs->MemoryMapDescriptorSize = sizeof(EfiMemoryRange);␊
266␉␉bootArgs->MemoryMapDescriptorVersion = 0;␊
267␉␉␊
268␉␉for (i=0; i<memoryMapCount; i++, kMemoryMap++) {␊
269␉␉␉range = &memoryMap[i];␊
270 if (!range || !kMemoryMap) {␊
271 stop("Error while computing kernel memory map\n");␊
272 return;␊
273 }␊
274␉␉␉switch(range->type) {␊
275␉␉␉␉case kMemoryRangeACPI:␊
276␉␉␉␉␉kMemoryMap->Type = kEfiACPIReclaimMemory;␊
277␉␉␉␉␉break;␊
278␉␉␉␉case kMemoryRangeNVS:␊
279␉␉␉␉␉kMemoryMap->Type = kEfiACPIMemoryNVS;␊
280␉␉␉␉␉break;␊
281␉␉␉␉case kMemoryRangeUsable:␊
282␉␉␉␉␉kMemoryMap->Type = kEfiConventionalMemory;␊
283␉␉␉␉␉break;␊
284␉␉␉␉case kMemoryRangeReserved:␊
285␉␉␉␉default:␊
286␉␉␉␉␉kMemoryMap->Type = kEfiReservedMemoryType;␊
287␉␉␉␉␉break;␊
288␉␉␉}␊
289␉␉␉kMemoryMap->PhysicalStart = range->base;␊
290␉␉␉kMemoryMap->VirtualStart = range->base;␊
291␉␉␉kMemoryMap->NumberOfPages = range->length >> I386_PGSHIFT;␊
292␉␉␉kMemoryMap->Attribute = 0;␊
293␉␉␉␊
294␉␉␉switch (kMemoryMap->Type) {␊
295␉␉␉␉case kEfiLoaderCode:␊
296␉␉␉␉case kEfiLoaderData:␊
297␉␉␉␉case kEfiBootServicesCode:␊
298␉␉␉␉case kEfiBootServicesData:␊
299␉␉␉␉case kEfiConventionalMemory:␊
300␉␉␉␉␉/*␊
301␉␉␉␉␉ * Consolidate usable memory types into one.␊
302␉␉␉␉␉ */␊
303␉␉␉␉␉sane_size += (uint64_t)(kMemoryMap->NumberOfPages << I386_PGSHIFT);␊
304␉␉␉␉␉break;␊
305␉␉␉␉␉␊
306␉␉␉␉case kEfiRuntimeServicesCode:␊
307␉␉␉␉case kEfiRuntimeServicesData:␊
308␉␉␉␉case kEfiACPIReclaimMemory:␊
309␉␉␉␉case kEfiACPIMemoryNVS:␊
310␉␉␉␉case kEfiPalCode:␊
311␉␉␉␉␉/*␊
312␉␉␉␉␉ * sane_size should reflect the total amount of physical ram␊
313␉␉␉␉␉ * in the system, not just the amount that is available for␊
314␉␉␉␉␉ * the OS to use␊
315␉␉␉␉␉ */␊
316␉␉␉␉␉sane_size += (uint64_t)(kMemoryMap->NumberOfPages << I386_PGSHIFT);␊
317␉␉␉␉␉break;␊
318␉␉␉␉default:␊
319␉␉␉␉␉break;␊
320␉␉␉␉␉␊
321␉␉␉}␊
322␉␉}␊
323␉␉␊
324␉␉if (sane_size == 0) {␊
325␉␉␉␊
326␉␉␉// I Guess that if sane_size == 0 we've got a big problem here, ␊
327␉␉␉// and it means that the memory map was not converted properly␊
328␉␉␉stop("Unable to convert memory map into proper format\n");␊
329␉␉}␊
330␉␉␊
331#define MEG␉␉(1024*1024)␊
332␉␉␊
333␉␉/*␊
334␉␉ * For user visible memory size, round up to 128 Mb - accounting for the various stolen memory␊
335␉␉ * not reported by EFI.␊
336␉␉ */␊
337␉␉␊
338␉␉sane_size = (sane_size + 128 * MEG - 1) & ~((uint64_t)(128 * MEG - 1));␊
339␉␉bootArgs->PhysicalMemorySize = sane_size;␊
340␉␉bootArgs->FSBFrequency = get_env(envFSBFreq);␊
341 ␊
342␉}␉␊
343 ␊
344 ␊
345␉{␊
346␉␉uint32_t size;␊
347␉␉void *addr;␊
348␉␉// Flatten device tree␊
349␉␉DT__FlattenDeviceTree(0, &size);␊
350␉␉addr = (void *)AllocateKernelMemory(size);␊
351␉␉if (addr == 0) {␊
352␉␉␉stop("Couldn't allocate device tree\n");␊
353␉␉}␊
354␉␉␊
355␉␉DT__FlattenDeviceTree((void **)&addr, &size);␊
356 if (!size) {␊
357 stop("Couldn't get flatten device tree\n");␊
358 }␊
359␉␉bootArgs->deviceTreeP = (uint32_t)addr;␊
360␉␉bootArgs->deviceTreeLength = size;␊
361␉} ␊
362 ␊
363}␊
364

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