1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
|
/*++
Copyright (c) 2004 - 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
hob.c
Abstract:
PEI Library Functions
--*/
#include "Tiano.h"
#include "Pei.h"
#include "peilib.h"
#include EFI_GUID_DEFINITION (MemoryAllocationHob)
EFI_STATUS
PeiBuildHobModule (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_GUID *ModuleName,
IN EFI_PHYSICAL_ADDRESS MemoryAllocationModule,
IN UINT64 ModuleLength,
IN EFI_PHYSICAL_ADDRESS EntryPoint
)
/*++
Routine Description:
Builds a HOB for a loaded PE32 module
Arguments:
PeiServices - The PEI core services table.
ModuleName - The GUID File Name of the module
MemoryAllocationModule - The 64 bit physical address of the module
ModuleLength - The length of the module in bytes
EntryPoint - The 64 bit physical address of the entry point
to the module
Returns:
EFI_SUCCESS - Hob is successfully built.
Others - Errors occur while creating new Hob
--*/
{
EFI_STATUS Status;
EFI_HOB_MEMORY_ALLOCATION_MODULE *Hob;
Status = (*PeiServices)->CreateHob (
PeiServices,
EFI_HOB_TYPE_MEMORY_ALLOCATION,
sizeof (EFI_HOB_MEMORY_ALLOCATION_MODULE),
&Hob
);
if (EFI_ERROR (Status)) {
return Status;
}
Hob->MemoryAllocationHeader.Name = gEfiHobMemeryAllocModuleGuid;
Hob->MemoryAllocationHeader.MemoryBaseAddress = MemoryAllocationModule;
Hob->MemoryAllocationHeader.MemoryLength = ModuleLength;
Hob->MemoryAllocationHeader.MemoryType = EfiBootServicesCode;
(*PeiServices)->SetMem (
Hob->MemoryAllocationHeader.Reserved,
sizeof (Hob->MemoryAllocationHeader.Reserved),
0
);
Hob->ModuleName = *ModuleName;
Hob->EntryPoint = EntryPoint;
return EFI_SUCCESS;
}
EFI_STATUS
PeiBuildHobResourceDescriptor (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_RESOURCE_TYPE ResourceType,
IN EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute,
IN EFI_PHYSICAL_ADDRESS PhysicalStart,
IN UINT64 NumberOfBytes
)
/*++
Routine Description:
Builds a HOB that describes a chunck of system memory
Arguments:
PeiServices - The PEI core services table.
ResourceType - The type of resource described by this HOB
ResourceAttribute - The resource attributes of the memory described by this HOB
PhysicalStart - The 64 bit physical address of memory described by this HOB
NumberOfBytes - The length of the memoty described by this HOB in bytes
Returns:
EFI_SUCCESS - Hob is successfully built.
Others - Errors occur while creating new Hob
--*/
{
EFI_STATUS Status;
EFI_HOB_RESOURCE_DESCRIPTOR *Hob;
Status = (*PeiServices)->CreateHob (
PeiServices,
EFI_HOB_TYPE_RESOURCE_DESCRIPTOR,
sizeof (EFI_HOB_RESOURCE_DESCRIPTOR),
&Hob
);
if (EFI_ERROR (Status)) {
return Status;
}
Hob->ResourceType = ResourceType;
Hob->ResourceAttribute = ResourceAttribute;
Hob->PhysicalStart = PhysicalStart;
Hob->ResourceLength = NumberOfBytes;
return EFI_SUCCESS;
}
EFI_STATUS
PeiBuildHobGuid (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_GUID *Guid,
IN UINTN DataLength,
OUT VOID **Hob
)
/*++
Routine Description:
Builds a custom HOB that is tagged with a GUID for identification
Arguments:
PeiServices - The PEI core services table.
Guid - The GUID of the custome HOB type
DataLength - The size of the data payload for the GUIDed HOB
Hob - Pointer to pointer to the created Hob
Returns:
EFI_SUCCESS - Hob is successfully built.
Others - Errors occur while creating new Hob
--*/
{
EFI_STATUS Status;
Status = (*PeiServices)->CreateHob (
PeiServices,
EFI_HOB_TYPE_GUID_EXTENSION,
(UINT16) (sizeof (EFI_HOB_GUID_TYPE) + DataLength),
Hob
);
if (EFI_ERROR (Status)) {
return Status;
}
((EFI_HOB_GUID_TYPE *)(*Hob))->Name = *Guid;
return EFI_SUCCESS;
}
EFI_STATUS
PeiBuildHobGuidData (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_GUID *Guid,
IN VOID *Data,
IN UINTN DataLength
)
/*++
Routine Description:
Builds a custom HOB that is tagged with a GUID for identification
Arguments:
PeiServices - The PEI core services table.
Guid - The GUID of the custome HOB type
Data - The data to be copied into the GUIDed HOB data field.
DataLength - The data field length.
Returns:
EFI_SUCCESS - Hob is successfully built.
Others - Errors occur while creating new Hob
--*/
{
EFI_STATUS Status;
EFI_HOB_GUID_TYPE *Hob;
Status = PeiBuildHobGuid (
PeiServices,
Guid,
DataLength,
&Hob
);
if (EFI_ERROR (Status)) {
return Status;
}
Hob++;
(*PeiServices)->CopyMem (Hob, Data, DataLength);
return EFI_SUCCESS;
}
EFI_STATUS
PeiBuildHobFv (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PHYSICAL_ADDRESS BaseAddress,
IN UINT64 Length
)
/*++
Routine Description:
Builds a Firmware Volume HOB
Arguments:
PeiServices - The PEI core services table.
BaseAddress - The base address of the Firmware Volume
Length - The size of the Firmware Volume in bytes
Returns:
EFI_SUCCESS - Hob is successfully built.
Others - Errors occur while creating new Hob
--*/
{
EFI_STATUS Status;
EFI_HOB_FIRMWARE_VOLUME *Hob;
Status = (*PeiServices)->CreateHob (
PeiServices,
EFI_HOB_TYPE_FV,
sizeof (EFI_HOB_FIRMWARE_VOLUME),
&Hob
);
if (EFI_ERROR (Status)) {
return Status;
}
Hob->BaseAddress = BaseAddress;
Hob->Length = Length;
return EFI_SUCCESS;
}
EFI_STATUS
PeiBuildHobCpu (
IN EFI_PEI_SERVICES **PeiServices,
IN UINT8 SizeOfMemorySpace,
IN UINT8 SizeOfIoSpace
)
/*++
Routine Description:
Builds a HOB for the CPU
Arguments:
PeiServices - The PEI core services table.
SizeOfMemorySpace - Identifies the maximum
physical memory addressibility of the processor.
SizeOfIoSpace - Identifies the maximum physical I/O addressibility
of the processor.
Returns:
EFI_SUCCESS - Hob is successfully built.
Others - Errors occur while creating new Hob
--*/
{
EFI_STATUS Status;
EFI_HOB_CPU *Hob;
Status = (*PeiServices)->CreateHob (
PeiServices,
EFI_HOB_TYPE_CPU,
sizeof (EFI_HOB_CPU),
&Hob
);
if (EFI_ERROR (Status)) {
return Status;
}
Hob->SizeOfMemorySpace = SizeOfMemorySpace;
Hob->SizeOfIoSpace = SizeOfIoSpace;
(*PeiServices)->SetMem (
Hob->Reserved,
sizeof (Hob->Reserved),
0
);
return EFI_SUCCESS;
}
EFI_STATUS
PeiBuildHobStack (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PHYSICAL_ADDRESS BaseAddress,
IN UINT64 Length
)
/*++
Routine Description:
Builds a HOB for the Stack
Arguments:
PeiServices - The PEI core services table.
BaseAddress - The 64 bit physical address of the Stack
Length - The length of the stack in bytes
Returns:
EFI_SUCCESS - Hob is successfully built.
Others - Errors occur while creating new Hob
--*/
{
EFI_STATUS Status;
EFI_HOB_MEMORY_ALLOCATION_STACK *Hob;
Status = (*PeiServices)->CreateHob (
PeiServices,
EFI_HOB_TYPE_MEMORY_ALLOCATION,
sizeof (EFI_HOB_MEMORY_ALLOCATION_STACK),
&Hob
);
if (EFI_ERROR (Status)) {
return Status;
}
Hob->AllocDescriptor.Name = gEfiHobMemeryAllocStackGuid;
Hob->AllocDescriptor.MemoryBaseAddress = BaseAddress;
Hob->AllocDescriptor.MemoryLength = Length;
Hob->AllocDescriptor.MemoryType = EfiBootServicesData;
(*PeiServices)->SetMem (
Hob->AllocDescriptor.Reserved,
sizeof (Hob->AllocDescriptor.Reserved),
0
);
return EFI_SUCCESS;
}
EFI_STATUS
PeiBuildHobBspStore (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PHYSICAL_ADDRESS BaseAddress,
IN UINT64 Length,
IN EFI_MEMORY_TYPE MemoryType
)
/*++
Routine Description:
Builds a HOB for the bsp store
Arguments:
PeiServices - The PEI core services table.
BaseAddress - The 64 bit physical address of the bsp
Length - The length of the bsp store in bytes
MemoryType - Memory type
Returns:
EFI_SUCCESS - Hob is successfully built.
Others - Errors occur while creating new Hob
--*/
{
EFI_STATUS Status;
EFI_HOB_MEMORY_ALLOCATION_BSP_STORE *Hob;
Status = (*PeiServices)->CreateHob (
PeiServices,
EFI_HOB_TYPE_MEMORY_ALLOCATION,
sizeof (EFI_HOB_MEMORY_ALLOCATION_BSP_STORE),
&Hob
);
if (EFI_ERROR (Status)) {
return Status;
}
Hob->AllocDescriptor.Name = gEfiHobMemeryAllocBspStoreGuid;
Hob->AllocDescriptor.MemoryBaseAddress = BaseAddress;
Hob->AllocDescriptor.MemoryLength = Length;
Hob->AllocDescriptor.MemoryType = MemoryType;
(*PeiServices)->SetMem (
Hob->AllocDescriptor.Reserved,
sizeof (Hob->AllocDescriptor.Reserved),
0
);
return EFI_SUCCESS;
}
EFI_STATUS
PeiBuildHobMemoryAllocation (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PHYSICAL_ADDRESS BaseAddress,
IN UINT64 Length,
IN EFI_GUID *Name,
IN EFI_MEMORY_TYPE MemoryType
)
/*++
Routine Description:
Builds a HOB for the memory allocation.
Arguments:
PeiServices - The PEI core services table.
BaseAddress - The 64 bit physical address of the memory
Length - The length of the memory allocation in bytes
Name - Name for Hob
MemoryType - Memory type
Returns:
EFI_SUCCESS - Hob is successfully built.
Others - Errors occur while creating new Hob
--*/
{
EFI_STATUS Status;
EFI_HOB_MEMORY_ALLOCATION *Hob;
Status = (*PeiServices)->CreateHob (
PeiServices,
EFI_HOB_TYPE_MEMORY_ALLOCATION,
sizeof (EFI_HOB_MEMORY_ALLOCATION),
&Hob
);
if (EFI_ERROR (Status)) {
return Status;
}
if (Name != NULL) {
Hob->AllocDescriptor.Name = *Name;
} else {
(*PeiServices)->SetMem(&(Hob->AllocDescriptor.Name), sizeof (EFI_GUID), 0);
}
Hob->AllocDescriptor.MemoryBaseAddress = BaseAddress;
Hob->AllocDescriptor.MemoryLength = Length;
Hob->AllocDescriptor.MemoryType = MemoryType;
(*PeiServices)->SetMem (
Hob->AllocDescriptor.Reserved,
sizeof (Hob->AllocDescriptor.Reserved),
0
);
return EFI_SUCCESS;
}
|
