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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 "config.h"␊
30#include "libsaio.h"␊
31#include "boot.h"␊
32#include "bootstruct.h"␊
33␊
34#if DEBUG_BOOTSTRUCT␊
35␉#define DBG(x...)␉printf(x)␊
36#else␊
37␉#define DBG(x...)␉msglog(x)␊
38#endif␊
39␊
40#define MEG␉␉(1024*1024)␊
41␊
42/*==========================================================================␊
43 * Initialize the structure of parameters passed to␊
44 * the kernel by the booter.␊
45 */␊
46␊
47boot_args␉␉*bootArgs␉= NULL;␊
48boot_args_legacy␉*bootArgsLegacy␉= NULL;␊
49␊
50PrivateBootInfo_t␉*bootInfo␉= NULL;␊
51Node␉␉␉*gMemoryMapNode;␊
52␊
53static char platformName[64];␊
54␊
55void initKernBootStruct( void )␊
56{␊
57␉Node *node;␊
58␉int nameLen;␊
59␊
60␉static int init_done = 0;␊
61␊
62␉if ( !init_done )␊
63␉{␊
64␉␉bootArgs = (boot_args *)malloc(sizeof(boot_args));␊
65␉␉bootArgsLegacy = (boot_args_legacy *)malloc(sizeof(boot_args_legacy));␊
66␉␉bootInfo = (PrivateBootInfo_t *)malloc(sizeof(PrivateBootInfo_t));␊
67␊
68␉␉if (bootArgs == 0 || bootArgsLegacy == 0 || bootInfo == 0)␊
69␉␉{␊
70␉␉␉stop("Couldn't allocate boot info\n");␊
71␉␉}␊
72␊
73␉␉bzero(bootArgs, sizeof(boot_args));␊
74␉␉bzero(bootArgsLegacy, sizeof(boot_args_legacy));␊
75␉␉bzero(bootInfo, sizeof(PrivateBootInfo_t));␊
76␊
77␉␉// Get system memory map. Also update the size of the␊
78␉␉// conventional/extended memory for backwards compatibility.␊
79␊
80␉␉bootInfo->memoryMapCount =␊
81␉␉␉getMemoryMap( bootInfo->memoryMap, kMemoryMapCountMax,␊
82␉␉␉␉␉␉ (unsigned long *) &bootInfo->convmem,␊
83␉␉␉␉␉␉ (unsigned long *) &bootInfo->extmem );␊
84␊
85␉␉if ( bootInfo->memoryMapCount == 0 )␊
86␉␉{␊
87␉␉␉// BIOS did not provide a memory map, systems with␊
88␉␉␉// discontiguous memory or unusual memory hole locations␊
89␉␉␉// may have problems.␊
90␊
91␉␉␉bootInfo->convmem␉= getConventionalMemorySize();␊
92␉␉␉bootInfo->extmem␉= getExtendedMemorySize();␊
93␉␉}␊
94␊
95␉␉bootInfo->configEnd␉␉= bootInfo->config;␊
96␉␉bootArgs->Video.v_display␉= VGA_TEXT_MODE;␊
97␊
98␉␉DT__Initialize();␊
99␊
100␉␉node = DT__FindNode("/", true);␊
101␉␉if (node == 0)␊
102␉␉{␊
103␉␉␉stop("Couldn't create root node");␊
104␉␉}␊
105␊
106␉␉getPlatformName(platformName, sizeof(platformName));␊
107␊
108␉␉nameLen = strlen(platformName) + 1;␊
109␉␉DT__AddProperty(node, "compatible", nameLen, platformName);␊
110␉␉DT__AddProperty(node, "model", nameLen, platformName);␊
111␊
112␉␉gMemoryMapNode = DT__FindNode("/chosen/memory-map", true);␊
113␊
114␉␉bootArgs->Version = kBootArgsVersion;␊
115␉␉bootArgs->Revision = kBootArgsRevision;␊
116␊
117␉␉bootArgsLegacy->Version = kBootArgsLegacyVersion;␊
118␉␉bootArgsLegacy->Revision = kBootArgsLegacyRevision;␊
119␊
120␉␉init_done = 1;␊
121␉}␊
122}␊
123␊
124/* Copy boot args after kernel and record address. */␊
125␊
126void reserveKernBootStruct(void)␊
127{␊
128␉if ( MacOSVerCurrent < MacOSVer2Int("10.7") )␊
129␉{␊
130␉␉// for 10.4 10.5 10.6␊
131␉␉void *oldAddr = bootArgsLegacy;␊
132␉␉bootArgsLegacy = (boot_args_legacy *)AllocateKernelMemory(sizeof(boot_args_legacy));␊
133␉␉bcopy(oldAddr, bootArgsLegacy, sizeof(boot_args_legacy));␊
134␉}␊
135␉else␊
136␉{␊
137␉␉// for 10.7 10.8 10.9 10.10 10.11 10.12 10.13 10.14␊
138␉␉void *oldAddr = bootArgs;␊
139␉␉bootArgs = (boot_args *)AllocateKernelMemory(sizeof(boot_args));␊
140␉␉bcopy(oldAddr, bootArgs, sizeof(boot_args));␊
141␉}␊
142␊
143␉// 10.12, 10.13 and 10.14 new bootArgs?␊
144}␊
145␊
146//==============================================================================␊
147␊
148void finalizeBootStruct(void)␊
149{␊
150␉uint32_t size;␊
151␉void *addr;␊
152␉int i;␊
153␊
154␉/* Memory size to use for defaults calculations (cparm) */␊
155␉uint64_t␉sane_size = 0;␊
156␊
157␉EfiMemoryRange␉*memoryMap␉= NULL;␊
158␉MemoryRange␉*range␉␉= NULL;␊
159␉int memoryMapCount = bootInfo->memoryMapCount;␊
160␊
161␉if (memoryMapCount == 0)␊
162␉{␊
163␉␉// XXX could make a two-part map here␊
164␉␉stop("No memory map found!\n");␊
165␉␉return;␊
166␉}␊
167␊
168␉// convert memory map to boot_args memory map␊
169␉memoryMap = (EfiMemoryRange *)AllocateKernelMemory(sizeof(EfiMemoryRange) * memoryMapCount);␊
170␉if (memoryMap == NULL)␊
171␉{␊
172␉␉stop("Unable to allocate kernel space for the memory map!\n");␊
173␉␉return;␊
174␉}␊
175␊
176␉bootArgs->MemoryMap␉␉␉= (uint32_t)memoryMap;␊
177␉bootArgs->MemoryMapSize␉␉␉= sizeof(EfiMemoryRange) * memoryMapCount;␊
178␉bootArgs->MemoryMapDescriptorSize␉= sizeof(EfiMemoryRange);␊
179␉bootArgs->MemoryMapDescriptorVersion␉= 0;␊
180␊
181␉for (i = 0; i < memoryMapCount; i++, memoryMap++)␊
182␉{␊
183␉␉range = &bootInfo->memoryMap[i];␊
184␊
185␉␉if (!range || !memoryMap)␊
186␉␉{␊
187␉␉␉stop("Error while computing kernel memory map\n");␊
188␉␉␉return;␊
189␉␉}␊
190␊
191␉␉switch(range->type)␊
192␉␉{␊
193␉␉␉case kMemoryRangeACPI:␊
194␉␉␉␉memoryMap->Type = kEfiACPIReclaimMemory;␊
195␉␉␉␉break;␊
196␊
197␉␉␉case kMemoryRangeNVS:␊
198␉␉␉␉memoryMap->Type = kEfiACPIMemoryNVS;␊
199␉␉␉␉break;␊
200␊
201␉␉␉case kMemoryRangeUsable:␊
202␉␉␉␉memoryMap->Type = kEfiConventionalMemory;␊
203␉␉␉␉break;␊
204␊
205␉␉␉case kMemoryRangeReserved:␊
206␊
207␉␉␉default:␊
208␉␉␉␉memoryMap->Type = kEfiReservedMemoryType;␊
209␉␉␉␉break;␊
210␉␉}␊
211␊
212␉␉memoryMap->PhysicalStart␉= range->base;␊
213␉␉memoryMap->VirtualStart␉␉= range->base;␊
214␉␉memoryMap->NumberOfPages␉= range->length >> I386_PGSHIFT;␊
215␉␉memoryMap->Attribute␉␉= 0;␊
216␊
217␉␉switch (memoryMap->Type)␊
218␉␉{␊
219␉␉␉case kEfiLoaderCode:␊
220␉␉␉case kEfiLoaderData:␊
221␉␉␉case kEfiBootServicesCode:␊
222␉␉␉case kEfiBootServicesData:␊
223␉␉␉case kEfiConventionalMemory:␊
224␉␉␉␉/*␊
225␉␉␉␉ * Consolidate usable memory types into one (cparm).␊
226␉␉␉␉ */␊
227␉␉␉␉sane_size += (uint64_t)(memoryMap->NumberOfPages << I386_PGSHIFT);␊
228␉␉␉␉break;␊
229␊
230␉␉␉case kEfiRuntimeServicesCode:␊
231␉␉␉case kEfiRuntimeServicesData:␊
232␉␉␉case kEfiACPIReclaimMemory:␊
233␉␉␉case kEfiACPIMemoryNVS:␊
234␉␉␉case kEfiPalCode:␊
235␉␉␉␉/*␊
236␉␉␉␉ * sane_size should reflect the total amount of physical ram␊
237␉␉␉␉ * in the system, not just the amount that is available for␊
238␉␉␉␉ * the OS to use (cparm)␊
239␉␉␉␉ */␊
240␉␉␉␉sane_size += (uint64_t)(memoryMap->NumberOfPages << I386_PGSHIFT);␊
241␉␉␉␉break;␊
242␉␉␉default:␊
243␉␉␉␉break;␊
244␉␉}␊
245␊
246␉␉if (sane_size == 0)␊
247␉␉{␊
248␊
249␉␉␉// I Guess that if sane_size == 0 we've got a big problem here,␊
250␉␉␉// and it means that the memory map was not converted properly (cparm)␊
251␉␉␉stop("Unable to convert memory map into proper format\n");␊
252␉␉␉return;␊
253␉␉}␊
254␊
255␉␉/*␊
256␉␉ * For user visible memory size, round up to 128 Mb - accounting for the various stolen memory␊
257␉␉ * not reported by EFI. (cparm)␊
258␉␉ */␊
259#if DEBUG_BOOTSTRUCT␊
260␉␉sane_size = (sane_size + 128 * MEG - 1) & ~((uint64_t)(128 * MEG - 1));␊
261␉␉DBG( "Total amount of physical RAM in the system : %d\n", ((sane_size + 128 * MEG - 1) & ~((uint64_t)(128 * MEG - 1))) );␊
262#else␊
263␉␉DBG( "Total amount of RAM in the system : %d\n", sane_size );␊
264#endif␊
265␉␉bootArgs->PhysicalMemorySize = sane_size;␊
266␉}␊
267␊
268␉// copy bootFile into device tree␊
269␉// XXX␊
270␊
271␉// add PCI info somehow into device tree␊
272␉// XXX␊
273␊
274␉// Flatten device tree␊
275␉DT__FlattenDeviceTree(0, &size);␊
276␉addr = (void *)AllocateKernelMemory(size);␊
277␉if (addr == 0)␊
278␉{␊
279␉␉stop("Couldn't allocate device tree\n");␊
280␉␉return;␊
281␉}␊
282␊
283␉DT__FlattenDeviceTree((void **)&addr, &size);␊
284␉if (!size)␊
285␉{␊
286␉␉stop("Couldn't get flatten device tree\n");␊
287␉␉return;␊
288␉}␊
289␉bootArgs->deviceTreeP = (uint32_t)addr;␊
290␉bootArgs->deviceTreeLength = size;␊
291␊
292␉//␊
293␉// MinusZwei:␊
294␉// Dump the new video struct fields in the old one.␊
295␉// This will avoid a black screen issue with OS X between 10.8 and 10.11␊
296␉//␊
297␉// In order to be 100% safe, the new struct fields will also be seroed␊
298␉// afterwards.␊
299␉//␊
300␉if ( MacOSVerCurrent < MacOSVer2Int("10.12") )␊
301␉{␊
302␉␉bootArgs->VideoV1.v_baseAddr = bootArgs->Video.v_baseAddr;␊
303␉␉bootArgs->VideoV1.v_display = bootArgs->Video.v_display;␊
304␉␉bootArgs->VideoV1.v_rowBytes = bootArgs->Video.v_rowBytes;␊
305␉␉bootArgs->VideoV1.v_width = bootArgs->Video.v_width;␊
306␉␉bootArgs->VideoV1.v_height = bootArgs->Video.v_height;␊
307␉␉bootArgs->VideoV1.v_depth = bootArgs->Video.v_depth;␊
308␊
309␉␉bzero(&bootArgs->Video, sizeof(Boot_Video));␊
310␊
311␉␉bootArgs->apfsDataStart = 0;␊
312␉␉bootArgs->apfsDataSize = 0;␊
313␉}␊
314␊
315␉// Copy BootArgs values to older structure␊
316␊
317␉memcpy(&bootArgsLegacy->CommandLine, &bootArgs->CommandLine, BOOT_LINE_LENGTH);␊
318␉memcpy(&bootArgsLegacy->Video, &bootArgs->VideoV1, sizeof(Boot_VideoV1));␊
319␊
320␉bootArgsLegacy->MemoryMap = bootArgs->MemoryMap;␊
321␉bootArgsLegacy->MemoryMapSize = bootArgs->MemoryMapSize;␊
322␉bootArgsLegacy->MemoryMapDescriptorSize = bootArgs->MemoryMapDescriptorSize;␊
323␉bootArgsLegacy->MemoryMapDescriptorVersion = bootArgs->MemoryMapDescriptorVersion;␊
324␊
325␉bootArgsLegacy->deviceTreeP = bootArgs->deviceTreeP;␊
326␉bootArgsLegacy->deviceTreeLength = bootArgs->deviceTreeLength;␊
327␊
328␉bootArgsLegacy->kaddr = bootArgs->kaddr;␊
329␉bootArgsLegacy->ksize = bootArgs->ksize;␊
330␊
331␉bootArgsLegacy->efiRuntimeServicesPageStart = bootArgs->efiRuntimeServicesPageStart;␊
332␉bootArgsLegacy->efiRuntimeServicesPageCount = bootArgs->efiRuntimeServicesPageCount;␊
333␉bootArgsLegacy->efiSystemTable = bootArgs->efiSystemTable;␊
334␊
335␉bootArgsLegacy->efiMode = bootArgs->efiMode;␊
336␊
337␉bootArgsLegacy->performanceDataStart = bootArgs->performanceDataStart;␊
338␉bootArgsLegacy->performanceDataSize = bootArgs->performanceDataSize;␊
339␉bootArgsLegacy->efiRuntimeServicesVirtualPageStart = bootArgs->efiRuntimeServicesVirtualPageStart;␊
340}␊
341

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