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

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