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

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