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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␊
47static char platformName[64];␊
48static MemoryRange memoryMap[kMemoryMapCountMax];␊
49␊
50void initKernBootStruct( void )␊
51{ ␊
52 static int init_done = 0;␊
53 ␊
54 if ( !init_done )␊
55 {␉␉␉␊
56␉␉int convmem; // conventional memory␊
57␉␉int extmem; // extended memory␊
58␉␉␊
59␉␉unsigned long memoryMapCount = 0;␊
60␉␉␊
61 bootArgs = (boot_args_common *)malloc(sizeof(boot_args_common));␊
62 bootInfo = (PrivateBootInfo_t *)malloc(sizeof(PrivateBootInfo_t));␊
63 if (bootArgs == NULL || bootInfo == NULL)␊
64 stop("Couldn't allocate boot info\n");␊
65 else␊
66 {␊
67 bzero(bootArgs, sizeof(boot_args_common));␊
68 bzero(bootInfo, sizeof(PrivateBootInfo_t));␊
69 ␊
70 // Get system memory map. Also update the size of the␊
71 // conventional/extended memory for backwards compatibility.␊
72 ␊
73 ␊
74 memoryMapCount =␊
75 getMemoryMap( memoryMap, kMemoryMapCountMax,␊
76 (unsigned long *) &convmem,␊
77 (unsigned long *) &extmem );␊
78 ␊
79 ␊
80 ␊
81 if ( memoryMapCount == 0 )␊
82 {␊
83 // BIOS did not provide a memory map, systems with␊
84 // discontiguous memory or unusual memory hole locations␊
85 // may have problems.␊
86 ␊
87 convmem = getConventionalMemorySize();␊
88 extmem = getExtendedMemorySize();␉␉␉␊
89 ␊
90 }␊
91␉␉␉␊
92 bootArgs->Video.v_display = VGA_TEXT_MODE;␊
93 ␊
94 DT__Initialize();␊
95 ␊
96 {␊
97 Node *node;␊
98 node = DT__FindNode("/", true);␊
99 if (node == 0) {␊
100 stop("Couldn't create root node");␊
101 }␊
102 getPlatformName(platformName);␊
103 ␊
104 {␊
105 int nameLen;␊
106 nameLen = strlen(platformName) + 1;␊
107 DT__AddProperty(node, "compatible", nameLen, platformName);␊
108 DT__AddProperty(node, "model", nameLen, platformName);␊
109 } ␊
110 }␉␉ ␊
111 ␊
112 Node *gMemoryMapNode = DT__FindNode("/chosen/memory-map", true);␊
113 ␊
114 set_env(envConvMem, convmem);␊
115 set_env(envExtMem, extmem);␊
116 set_env(envMemoryMap, (uint32_t)memoryMap);␊
117 set_env(envMemoryMapCnt, memoryMapCount);␊
118␉␉␉set_env(envMemoryMapNode, (uint32_t)gMemoryMapNode);␊
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}␊
134//==========================================================================␊
135// Return the current video mode.␊
136uint32_t getVideoMode(void)␊
137{␊
138 return bootArgs->Video.v_display;␊
139}␊
140void setBootArgsVideoStruct(Boot_Video␉*Video)␊
141{␊
142 bootArgs->Video.v_display = Video->v_display;␊
143 bootArgs->Video.v_width = Video->v_width;␊
144 bootArgs->Video.v_height = Video->v_height;␊
145 bootArgs->Video.v_depth = Video->v_depth;␊
146 bootArgs->Video.v_rowBytes = Video->v_rowBytes;␊
147 bootArgs->Video.v_baseAddr = Video->v_baseAddr;␊
148 return;␊
149}␊
150boot_args_common * getBootArgs(void)␊
151{␊
152 return bootArgs;␊
153}␊
154␊
155#define AllocateKernelMemoryForBootArgs(Ver) \␊
156{ \␊
157bootArgs##Ver = (boot_args_##Ver *)AllocateKernelMemory(sizeof(boot_args_##Ver));\␊
158}␊
159␊
160#define CopyCommonBootArgsHeader(Ver) \␊
161{ \␊
162bootArgs##Ver->Revision = bootArgs->Header.Revision ;\␊
163bootArgs##Ver->Version = bootArgs->Header.Version ;\␊
164}␊
165␊
166// For 10.6, 10.5 and 10.4 please use :Legacy:, for 10.7 use :107:, for 10.8 use :108:␊
167#define CopyCommonBootArgs(Ver) \␊
168{ \␊
169bcopy(bootArgs->CommandLine, bootArgs##Ver->CommandLine, BOOT_LINE_LENGTH);\␊
170bootArgs##Ver->MemoryMap = bootArgs->MemoryMap ;\␊
171bootArgs##Ver->MemoryMapSize = bootArgs->MemoryMapSize ;\␊
172bootArgs##Ver->MemoryMapDescriptorSize = bootArgs->MemoryMapDescriptorSize ;\␊
173bootArgs##Ver->MemoryMapDescriptorVersion = bootArgs->MemoryMapDescriptorVersion ;\␊
174bootArgs##Ver->Video = bootArgs->Video ;\␊
175bootArgs##Ver->deviceTreeP = bootArgs->deviceTreeP ;\␊
176bootArgs##Ver->deviceTreeLength = bootArgs->deviceTreeLength ;\␊
177bootArgs##Ver->kaddr = bootArgs->kaddr ;\␊
178bootArgs##Ver->ksize = bootArgs->ksize ;\␊
179bootArgs##Ver->efiRuntimeServicesPageStart = bootArgs->efiRuntimeServicesPageStart ;\␊
180bootArgs##Ver->efiRuntimeServicesPageCount = bootArgs->efiRuntimeServicesPageCount ;\␊
181bootArgs##Ver->efiSystemTable = bootArgs->efiSystemTable ;\␊
182bootArgs##Ver->efiMode = bootArgs->efiMode ;\␊
183bootArgs##Ver->performanceDataStart = bootArgs->performanceDataStart ;\␊
184bootArgs##Ver->performanceDataSize = bootArgs->performanceDataSize ;\␊
185bootArgs##Ver->efiRuntimeServicesVirtualPageStart = bootArgs->efiRuntimeServicesVirtualPageStart ;\␊
186}␊
187␊
188/* ␊
189 * Darwin 10.7+ specific boot arguments ␊
190 *␊
191 * for 10.7 use :107:, for 10.8 use :108:␊
192 */␊
193#define Copy107plusBootArgs(Ver) \␊
194{ \␊
195bootArgs##Ver->keyStoreDataStart = bootArgs->keyStoreDataStart ;\␊
196bootArgs##Ver->keyStoreDataSize = bootArgs->keyStoreDataSize ;\␊
197bootArgs##Ver->bootMemStart = bootArgs->bootMemStart ;\␊
198bootArgs##Ver->bootMemSize = bootArgs->bootMemSize ;\␊
199bootArgs##Ver->PhysicalMemorySize = bootArgs->PhysicalMemorySize ;\␊
200bootArgs##Ver->FSBFrequency = bootArgs->FSBFrequency ;\␊
201bootArgs##Ver->debugMode = bootArgs->debugMode ;\␊
202}␊
203␊
204#define init_boot_args(Ver) \␊
205{ \␊
206AllocateKernelMemoryForBootArgs(Ver);\␊
207CopyCommonBootArgsHeader(Ver);\␊
208CopyCommonBootArgs(Ver);\␊
209}␊
210␊
211/* Copy boot args after kernel and record address. */␊
212␊
213void␊
214reserveKern107BootStruct(void)␊
215{␉␊
216␉init_boot_args(107);␊
217␉Copy107plusBootArgs(107);␊
218}␊
219␊
220void␊
221reserveKern108BootStruct(void)␊
222{␉␊
223␉init_boot_args(108);␉␊
224␉Copy107plusBootArgs(108);␊
225␉␊
226␉/* Darwin 10.8 specific boot arguments */␉␉␊
227}␊
228␊
229void␊
230reserveKernLegacyBootStruct(void)␊
231{␊
232␉init_boot_args(Legacy);␊
233}␊
234␊
235void␊
236finalizeBootStruct(void)␊
237{ ␊
238␉{␊
239␉␉int i;␊
240␉␉EfiMemoryRange *kMemoryMap = NULL;␊
241␉␉MemoryRange *range = NULL;␊
242␉␉␊
243␉␉uint64_t␉sane_size = 0; /* Memory size to use for defaults calculations */␊
244␉␉␊
245␉␉int memoryMapCount = (int)get_env(envMemoryMapCnt);␊
246␉␉␊
247␉␉if (memoryMapCount == 0) {␊
248␉␉␉␊
249␉␉␉// XXX could make a two-part map here␊
250␉␉␉stop("No memory map found\n");␊
251␉␉}␊
252␉␉␊
253␉␉␊
254␉␉␊
255␉␉// convert memory map to boot_args memory map␊
256␉␉kMemoryMap = (EfiMemoryRange *)AllocateKernelMemory(sizeof(EfiMemoryRange) * memoryMapCount);␊
257␉␉if (kMemoryMap == NULL) {␊
258␉␉␉␊
259␉␉␉stop("Unable to allocate kernel space for the memory map\n");␊
260 return;␊
261␉␉}␊
262␉␉bootArgs->MemoryMap = (uint32_t)kMemoryMap;␊
263␉␉bootArgs->MemoryMapSize = sizeof(EfiMemoryRange) * memoryMapCount;␊
264␉␉bootArgs->MemoryMapDescriptorSize = sizeof(EfiMemoryRange);␊
265␉␉bootArgs->MemoryMapDescriptorVersion = 0;␊
266␉␉␊
267␉␉for (i=0; i<memoryMapCount; i++, kMemoryMap++) {␊
268␉␉␉range = &memoryMap[i];␊
269 if (!range || !kMemoryMap) {␊
270 stop("Error while computing kernel memory map\n");␊
271 return;␊
272 }␊
273␉␉␉switch(range->type) {␊
274␉␉␉␉case kMemoryRangeACPI:␊
275␉␉␉␉␉kMemoryMap->Type = kEfiACPIReclaimMemory;␊
276␉␉␉␉␉break;␊
277␉␉␉␉case kMemoryRangeNVS:␊
278␉␉␉␉␉kMemoryMap->Type = kEfiACPIMemoryNVS;␊
279␉␉␉␉␉break;␊
280␉␉␉␉case kMemoryRangeUsable:␊
281␉␉␉␉␉kMemoryMap->Type = kEfiConventionalMemory;␊
282␉␉␉␉␉break;␊
283␉␉␉␉case kMemoryRangeReserved:␊
284␉␉␉␉default:␊
285␉␉␉␉␉kMemoryMap->Type = kEfiReservedMemoryType;␊
286␉␉␉␉␉break;␊
287␉␉␉}␊
288␉␉␉kMemoryMap->PhysicalStart = range->base;␊
289␉␉␉kMemoryMap->VirtualStart = range->base;␊
290␉␉␉kMemoryMap->NumberOfPages = range->length >> I386_PGSHIFT;␊
291␉␉␉kMemoryMap->Attribute = 0;␊
292␉␉␉␊
293␉␉␉switch (kMemoryMap->Type) {␊
294␉␉␉␉case kEfiLoaderCode:␊
295␉␉␉␉case kEfiLoaderData:␊
296␉␉␉␉case kEfiBootServicesCode:␊
297␉␉␉␉case kEfiBootServicesData:␊
298␉␉␉␉case kEfiConventionalMemory:␊
299␉␉␉␉␉/*␊
300␉␉␉␉␉ * Consolidate usable memory types into one.␊
301␉␉␉␉␉ */␊
302␉␉␉␉␉sane_size += (uint64_t)(kMemoryMap->NumberOfPages << I386_PGSHIFT);␊
303␉␉␉␉␉break;␊
304␉␉␉␉␉␊
305␉␉␉␉case kEfiRuntimeServicesCode:␊
306␉␉␉␉case kEfiRuntimeServicesData:␊
307␉␉␉␉case kEfiACPIReclaimMemory:␊
308␉␉␉␉case kEfiACPIMemoryNVS:␊
309␉␉␉␉case kEfiPalCode:␊
310␉␉␉␉␉/*␊
311␉␉␉␉␉ * sane_size should reflect the total amount of physical ram␊
312␉␉␉␉␉ * in the system, not just the amount that is available for␊
313␉␉␉␉␉ * the OS to use␊
314␉␉␉␉␉ */␊
315␉␉␉␉␉sane_size += (uint64_t)(kMemoryMap->NumberOfPages << I386_PGSHIFT);␊
316␉␉␉␉␉break;␊
317␉␉␉␉default:␊
318␉␉␉␉␉break;␊
319␉␉␉␉␉␊
320␉␉␉}␊
321␉␉}␊
322␉␉␊
323␉␉if (sane_size == 0) {␊
324␉␉␉␊
325␉␉␉// I Guess that if sane_size == 0 we've got a big problem here, ␊
326␉␉␉// and it means that the memory map was not converted properly␊
327␉␉␉stop("Unable to convert memory map into proper format\n");␊
328␉␉}␊
329␉␉␊
330#define MEG␉␉(1024*1024)␊
331␉␉␊
332␉␉/*␊
333␉␉ * For user visible memory size, round up to 128 Mb - accounting for the various stolen memory␊
334␉␉ * not reported by EFI.␊
335␉␉ */␊
336␉␉␊
337␉␉sane_size = (sane_size + 128 * MEG - 1) & ~((uint64_t)(128 * MEG - 1));␊
338␉␉bootArgs->PhysicalMemorySize = sane_size;␊
339␉␉bootArgs->FSBFrequency = get_env(envFSBFreq);␊
340 ␊
341␉}␉␊
342 ␊
343 ␊
344␉{␊
345␉␉uint32_t size;␊
346␉␉void *addr;␊
347␉␉// Flatten device tree␊
348␉␉DT__FlattenDeviceTree(0, &size);␊
349␉␉addr = (void *)AllocateKernelMemory(size);␊
350␉␉if (addr == 0) {␊
351␉␉␉stop("Couldn't allocate device tree\n");␊
352␉␉}␊
353␉␉␊
354␉␉DT__FlattenDeviceTree((void **)&addr, &size);␊
355 if (!size) {␊
356 stop("Couldn't get flatten device tree\n");␊
357 }␊
358␉␉bootArgs->deviceTreeP = (uint32_t)addr;␊
359␉␉bootArgs->deviceTreeLength = size;␊
360␉} ␊
361 ␊
362}␊
363

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