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878ddf1f | 1 | /** @file\r |
2 | HOB Library.\r | |
3 | \r | |
4 | Copyright (c) 2006, Intel Corporation<BR>\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | Module Name: HobLib.c\r | |
14 | \r | |
15 | **/\r | |
16 | \r | |
17 | \r | |
18 | \r | |
19 | /**\r | |
20 | Returns the pointer to the HOB list.\r | |
21 | \r | |
5f10fa01 | 22 | This function returns the pointer to first HOB in the list.\r |
878ddf1f | 23 | \r |
5f10fa01 | 24 | @return The pointer to the HOB list.\r |
878ddf1f | 25 | \r |
26 | **/\r | |
27 | VOID *\r | |
28 | EFIAPI\r | |
29 | GetHobList (\r | |
30 | VOID\r | |
31 | )\r | |
32 | {\r | |
33 | EFI_STATUS Status;\r | |
34 | VOID *HobList;\r | |
35 | \r | |
84a99d48 | 36 | Status = PeiServicesGetHobList (&HobList);\r |
878ddf1f | 37 | ASSERT_EFI_ERROR (Status);\r |
38 | ASSERT (HobList != NULL);\r | |
39 | \r | |
40 | return HobList;\r | |
41 | }\r | |
42 | \r | |
43 | /**\r | |
5f10fa01 | 44 | Returns the next instance of a HOB type from the starting HOB.\r |
45 | \r | |
878ddf1f | 46 | This function searches the first instance of a HOB type from the starting HOB pointer. \r |
5f10fa01 | 47 | If there does not exist such HOB type from the starting HOB pointer, it will return NULL.\r |
48 | In contrast with macro GET_NEXT_HOB(), this function does not skip the starting HOB pointer\r | |
49 | unconditionally: it returns HobStart back if HobStart itself meets the requirement;\r | |
50 | caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.\r | |
51 | If HobStart is NULL, then ASSERT().\r | |
878ddf1f | 52 | \r |
5f10fa01 | 53 | @param Type The HOB type to return.\r |
54 | @param HobStart The starting HOB pointer to search from.\r | |
878ddf1f | 55 | \r |
56 | @return The next instance of a HOB type from the starting HOB.\r | |
57 | \r | |
58 | **/\r | |
59 | VOID *\r | |
60 | EFIAPI\r | |
61 | GetNextHob (\r | |
62 | IN UINT16 Type,\r | |
63 | IN CONST VOID *HobStart\r | |
64 | )\r | |
65 | {\r | |
66 | EFI_PEI_HOB_POINTERS Hob;\r | |
67 | \r | |
68 | ASSERT (HobStart != NULL);\r | |
69 | \r | |
70 | Hob.Raw = (UINT8 *) HobStart;\r | |
71 | //\r | |
5f10fa01 | 72 | // Parse the HOB list until end of list or matching type is found.\r |
878ddf1f | 73 | //\r |
74 | while (!END_OF_HOB_LIST (Hob)) {\r | |
75 | if (Hob.Header->HobType == Type) {\r | |
76 | return Hob.Raw;\r | |
77 | }\r | |
78 | Hob.Raw = GET_NEXT_HOB (Hob);\r | |
79 | }\r | |
80 | return NULL;\r | |
81 | }\r | |
82 | \r | |
83 | /**\r | |
5f10fa01 | 84 | Returns the first instance of a HOB type among the whole HOB list.\r |
85 | \r | |
878ddf1f | 86 | This function searches the first instance of a HOB type among the whole HOB list. \r |
87 | If there does not exist such HOB type in the HOB list, it will return NULL. \r | |
88 | \r | |
5f10fa01 | 89 | @param Type The HOB type to return.\r |
878ddf1f | 90 | \r |
91 | @return The next instance of a HOB type from the starting HOB.\r | |
92 | \r | |
93 | **/\r | |
94 | VOID *\r | |
95 | EFIAPI\r | |
96 | GetFirstHob (\r | |
97 | IN UINT16 Type\r | |
98 | )\r | |
99 | {\r | |
100 | VOID *HobList;\r | |
101 | \r | |
102 | HobList = GetHobList ();\r | |
103 | return GetNextHob (Type, HobList);\r | |
104 | }\r | |
105 | \r | |
106 | /**\r | |
107 | This function searches the first instance of a HOB from the starting HOB pointer. \r | |
108 | Such HOB should satisfy two conditions: \r | |
109 | its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the input Guid. \r | |
110 | If there does not exist such HOB from the starting HOB pointer, it will return NULL. \r | |
5f10fa01 | 111 | Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE ()\r |
112 | to extract the data section and its size info respectively.\r | |
113 | In contrast with macro GET_NEXT_HOB(), this function does not skip the starting HOB pointer\r | |
114 | unconditionally: it returns HobStart back if HobStart itself meets the requirement;\r | |
115 | caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.\r | |
116 | If Guid is NULL, then ASSERT().\r | |
117 | If HobStart is NULL, then ASSERT().\r | |
878ddf1f | 118 | \r |
5f10fa01 | 119 | @param Guid The GUID to match with in the HOB list.\r |
120 | @param HobStart A pointer to a Guid.\r | |
878ddf1f | 121 | \r |
122 | @return The next instance of the matched GUID HOB from the starting HOB.\r | |
123 | \r | |
124 | **/\r | |
125 | VOID *\r | |
126 | EFIAPI\r | |
127 | GetNextGuidHob (\r | |
128 | IN CONST EFI_GUID *Guid,\r | |
129 | IN CONST VOID *HobStart\r | |
130 | )\r | |
131 | {\r | |
132 | EFI_PEI_HOB_POINTERS GuidHob;\r | |
133 | \r | |
134 | GuidHob.Raw = (UINT8 *) HobStart;\r | |
135 | while ((GuidHob.Raw = GetNextHob (EFI_HOB_TYPE_GUID_EXTENSION, GuidHob.Raw)) != NULL) {\r | |
136 | if (CompareGuid (Guid, &GuidHob.Guid->Name)) {\r | |
137 | break;\r | |
138 | }\r | |
139 | GuidHob.Raw = GET_NEXT_HOB (GuidHob);\r | |
140 | }\r | |
141 | return GuidHob.Raw;\r | |
142 | }\r | |
143 | \r | |
144 | /**\r | |
145 | This function searches the first instance of a HOB among the whole HOB list. \r | |
146 | Such HOB should satisfy two conditions:\r | |
147 | its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the input Guid.\r | |
148 | If there does not exist such HOB from the starting HOB pointer, it will return NULL.\r | |
5f10fa01 | 149 | Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE ()\r |
150 | to extract the data section and its size info respectively.\r | |
151 | If Guid is NULL, then ASSERT().\r | |
878ddf1f | 152 | \r |
5f10fa01 | 153 | @param Guid The GUID to match with in the HOB list.\r |
878ddf1f | 154 | \r |
155 | @return The first instance of the matched GUID HOB among the whole HOB list.\r | |
156 | \r | |
157 | **/\r | |
158 | VOID *\r | |
159 | EFIAPI\r | |
160 | GetFirstGuidHob (\r | |
161 | IN CONST EFI_GUID *Guid\r | |
162 | )\r | |
163 | {\r | |
164 | VOID *HobList;\r | |
165 | \r | |
166 | HobList = GetHobList ();\r | |
167 | return GetNextGuidHob (Guid, HobList);\r | |
168 | }\r | |
169 | \r | |
170 | /**\r | |
5f10fa01 | 171 | Adds a new HOB to the HOB List.\r |
878ddf1f | 172 | \r |
5f10fa01 | 173 | This internal function enables PEIMs to create various types of HOBs.\r |
174 | \r | |
175 | @param Type Type of the new HOB.\r | |
176 | @param Length Length of the new HOB to allocate.\r | |
878ddf1f | 177 | \r |
178 | @return The address of new HOB.\r | |
179 | \r | |
180 | **/\r | |
58251024 | 181 | STATIC\r |
878ddf1f | 182 | VOID *\r |
183 | InternalPeiCreateHob (\r | |
184 | IN UINT16 Type,\r | |
185 | IN UINT16 Length\r | |
186 | )\r | |
187 | {\r | |
188 | EFI_STATUS Status;\r | |
189 | VOID *Hob;\r | |
190 | \r | |
84a99d48 | 191 | Status = PeiServicesCreateHob (Type, Length, &Hob);\r |
878ddf1f | 192 | //\r |
193 | // Assume the process of HOB building is always successful.\r | |
194 | //\r | |
195 | ASSERT_EFI_ERROR (Status);\r | |
196 | return Hob;\r | |
197 | }\r | |
198 | \r | |
199 | /**\r | |
5f10fa01 | 200 | Builds a HOB for a loaded PE32 module.\r |
201 | \r | |
878ddf1f | 202 | This function builds a HOB for a loaded PE32 module.\r |
5f10fa01 | 203 | It can only be invoked during PEI phase;\r |
204 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
205 | If ModuleName is NULL, then ASSERT().\r | |
206 | If there is no additional space for HOB creation, then ASSERT().\r | |
878ddf1f | 207 | \r |
5f10fa01 | 208 | @param ModuleName The GUID File Name of the module.\r |
209 | @param MemoryAllocationModule The 64 bit physical address of the module.\r | |
210 | @param ModuleLength The length of the module in bytes.\r | |
511710d6 | 211 | @param EntryPoint The 64 bit physical address of the module's entry point.\r |
878ddf1f | 212 | \r |
213 | **/\r | |
214 | VOID\r | |
215 | EFIAPI\r | |
216 | BuildModuleHob (\r | |
217 | IN CONST EFI_GUID *ModuleName,\r | |
218 | IN EFI_PHYSICAL_ADDRESS MemoryAllocationModule,\r | |
219 | IN UINT64 ModuleLength,\r | |
220 | IN EFI_PHYSICAL_ADDRESS EntryPoint\r | |
221 | )\r | |
222 | {\r | |
223 | EFI_HOB_MEMORY_ALLOCATION_MODULE *Hob;\r | |
224 | \r | |
225 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, sizeof (EFI_HOB_MEMORY_ALLOCATION_MODULE));\r | |
226 | \r | |
227 | CopyGuid (&(Hob->MemoryAllocationHeader.Name), &gEfiHobMemoryAllocModuleGuid);\r | |
228 | Hob->MemoryAllocationHeader.MemoryBaseAddress = MemoryAllocationModule;\r | |
229 | Hob->MemoryAllocationHeader.MemoryLength = ModuleLength;\r | |
230 | Hob->MemoryAllocationHeader.MemoryType = EfiBootServicesCode;\r | |
231 | \r | |
d4f397c0 | 232 | //\r |
233 | // Zero the reserved space to match HOB spec\r | |
234 | //\r | |
235 | ZeroMem (Hob->MemoryAllocationHeader.Reserved, sizeof (Hob->MemoryAllocationHeader.Reserved));\r | |
236 | \r | |
878ddf1f | 237 | CopyGuid (&Hob->ModuleName, ModuleName);\r |
238 | Hob->EntryPoint = EntryPoint;\r | |
239 | }\r | |
240 | \r | |
241 | /**\r | |
242 | Builds a HOB that describes a chunk of system memory.\r | |
243 | \r | |
5f10fa01 | 244 | This function builds a HOB that describes a chunk of system memory.\r |
245 | It can only be invoked during PEI phase;\r | |
246 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
247 | If there is no additional space for HOB creation, then ASSERT().\r | |
248 | \r | |
249 | @param ResourceType The type of resource described by this HOB.\r | |
250 | @param ResourceAttribute The resource attributes of the memory described by this HOB.\r | |
251 | @param PhysicalStart The 64 bit physical address of memory described by this HOB.\r | |
252 | @param NumberOfBytes The length of the memory described by this HOB in bytes.\r | |
878ddf1f | 253 | \r |
254 | **/\r | |
255 | VOID\r | |
256 | EFIAPI\r | |
257 | BuildResourceDescriptorHob (\r | |
258 | IN EFI_RESOURCE_TYPE ResourceType,\r | |
259 | IN EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute,\r | |
260 | IN EFI_PHYSICAL_ADDRESS PhysicalStart,\r | |
261 | IN UINT64 NumberOfBytes\r | |
262 | )\r | |
263 | {\r | |
264 | EFI_HOB_RESOURCE_DESCRIPTOR *Hob;\r | |
265 | \r | |
266 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, sizeof (EFI_HOB_RESOURCE_DESCRIPTOR));\r | |
267 | \r | |
268 | Hob->ResourceType = ResourceType;\r | |
269 | Hob->ResourceAttribute = ResourceAttribute;\r | |
270 | Hob->PhysicalStart = PhysicalStart;\r | |
271 | Hob->ResourceLength = NumberOfBytes;\r | |
272 | }\r | |
273 | \r | |
274 | /**\r | |
5f10fa01 | 275 | Builds a GUID HOB with a certain data length.\r |
276 | \r | |
277 | This function builds a customized HOB tagged with a GUID for identification \r | |
278 | and returns the start address of GUID HOB data so that caller can fill the customized data. \r | |
279 | The HOB Header and Name field is already stripped.\r | |
280 | It can only be invoked during PEI phase;\r | |
281 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
282 | If Guid is NULL, then ASSERT().\r | |
283 | If there is no additional space for HOB creation, then ASSERT().\r | |
533f039e | 284 | If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().\r |
878ddf1f | 285 | \r |
5f10fa01 | 286 | @param Guid The GUID to tag the customized HOB.\r |
287 | @param DataLength The size of the data payload for the GUID HOB.\r | |
878ddf1f | 288 | \r |
289 | @return The start address of GUID HOB data.\r | |
290 | \r | |
291 | **/\r | |
292 | VOID *\r | |
293 | EFIAPI\r | |
294 | BuildGuidHob (\r | |
295 | IN CONST EFI_GUID *Guid,\r | |
296 | IN UINTN DataLength\r | |
297 | )\r | |
298 | {\r | |
299 | EFI_HOB_GUID_TYPE *Hob;\r | |
300 | \r | |
301 | //\r | |
302 | // Make sure that data length is not too long.\r | |
303 | //\r | |
304 | ASSERT (DataLength <= (0xffff - sizeof (EFI_HOB_GUID_TYPE)));\r | |
305 | \r | |
306 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_GUID_EXTENSION, (UINT16) (sizeof (EFI_HOB_GUID_TYPE) + DataLength));\r | |
307 | CopyGuid (&Hob->Name, Guid);\r | |
308 | return Hob + 1;\r | |
309 | }\r | |
310 | \r | |
311 | /**\r | |
5f10fa01 | 312 | Copies a data buffer to a newly-built HOB.\r |
878ddf1f | 313 | \r |
5f10fa01 | 314 | This function builds a customized HOB tagged with a GUID for identification,\r |
315 | copies the input data to the HOB data field and returns the start address of the GUID HOB data.\r | |
316 | The HOB Header and Name field is already stripped.\r | |
317 | It can only be invoked during PEI phase;\r | |
318 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
319 | If Guid is NULL, then ASSERT().\r | |
320 | If Data is NULL and DataLength > 0, then ASSERT().\r | |
321 | If there is no additional space for HOB creation, then ASSERT().\r | |
533f039e | 322 | If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().\r |
5f10fa01 | 323 | \r |
324 | @param Guid The GUID to tag the customized HOB.\r | |
325 | @param Data The data to be copied into the data field of the GUID HOB.\r | |
326 | @param DataLength The size of the data payload for the GUID HOB.\r | |
878ddf1f | 327 | \r |
328 | @return The start address of GUID HOB data.\r | |
329 | \r | |
330 | **/\r | |
331 | VOID *\r | |
332 | EFIAPI\r | |
333 | BuildGuidDataHob (\r | |
334 | IN CONST EFI_GUID *Guid,\r | |
335 | IN VOID *Data,\r | |
336 | IN UINTN DataLength\r | |
337 | )\r | |
338 | {\r | |
339 | VOID *HobData;\r | |
340 | \r | |
533f039e | 341 | ASSERT (Data != NULL || DataLength == 0);\r |
342 | \r | |
878ddf1f | 343 | HobData = BuildGuidHob (Guid, DataLength);\r |
344 | \r | |
345 | return CopyMem (HobData, Data, DataLength);\r | |
346 | }\r | |
347 | \r | |
348 | /**\r | |
349 | Builds a Firmware Volume HOB.\r | |
350 | \r | |
5f10fa01 | 351 | This function builds a Firmware Volume HOB.\r |
352 | It can only be invoked during PEI phase;\r | |
353 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
354 | If there is no additional space for HOB creation, then ASSERT().\r | |
355 | \r | |
356 | @param BaseAddress The base address of the Firmware Volume.\r | |
357 | @param Length The size of the Firmware Volume in bytes.\r | |
878ddf1f | 358 | \r |
359 | **/\r | |
360 | VOID\r | |
361 | EFIAPI\r | |
362 | BuildFvHob (\r | |
363 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
364 | IN UINT64 Length\r | |
365 | )\r | |
366 | {\r | |
367 | EFI_HOB_FIRMWARE_VOLUME *Hob;\r | |
368 | \r | |
369 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_FV, sizeof (EFI_HOB_FIRMWARE_VOLUME));\r | |
370 | \r | |
371 | Hob->BaseAddress = BaseAddress;\r | |
372 | Hob->Length = Length;\r | |
373 | }\r | |
374 | \r | |
375 | /**\r | |
376 | Builds a Capsule Volume HOB.\r | |
377 | \r | |
5f10fa01 | 378 | This function builds a Capsule Volume HOB.\r |
379 | It can only be invoked during PEI phase;\r | |
380 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
381 | If there is no additional space for HOB creation, then ASSERT().\r | |
382 | \r | |
383 | @param BaseAddress The base address of the Capsule Volume.\r | |
384 | @param Length The size of the Capsule Volume in bytes.\r | |
878ddf1f | 385 | \r |
386 | **/\r | |
387 | VOID\r | |
388 | EFIAPI\r | |
389 | BuildCvHob (\r | |
390 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
391 | IN UINT64 Length\r | |
392 | )\r | |
393 | {\r | |
394 | EFI_HOB_CAPSULE_VOLUME *Hob;\r | |
395 | \r | |
396 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_CV, sizeof (EFI_HOB_CAPSULE_VOLUME));\r | |
397 | \r | |
398 | Hob->BaseAddress = BaseAddress;\r | |
399 | Hob->Length = Length;\r | |
400 | }\r | |
401 | \r | |
402 | /**\r | |
403 | Builds a HOB for the CPU.\r | |
404 | \r | |
5f10fa01 | 405 | This function builds a HOB for the CPU.\r |
406 | It can only be invoked during PEI phase;\r | |
407 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
408 | If there is no additional space for HOB creation, then ASSERT().\r | |
409 | \r | |
410 | @param SizeOfMemorySpace The maximum physical memory addressability of the processor.\r | |
411 | @param SizeOfIoSpace The maximum physical I/O addressability of the processor.\r | |
878ddf1f | 412 | \r |
413 | **/\r | |
414 | VOID\r | |
415 | EFIAPI\r | |
416 | BuildCpuHob (\r | |
417 | IN UINT8 SizeOfMemorySpace,\r | |
418 | IN UINT8 SizeOfIoSpace\r | |
419 | )\r | |
420 | {\r | |
421 | EFI_HOB_CPU *Hob;\r | |
422 | \r | |
423 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_CPU, sizeof (EFI_HOB_CPU));\r | |
424 | \r | |
425 | Hob->SizeOfMemorySpace = SizeOfMemorySpace;\r | |
426 | Hob->SizeOfIoSpace = SizeOfIoSpace;\r | |
d4f397c0 | 427 | \r |
428 | //\r | |
429 | // Zero the reserved space to match HOB spec\r | |
430 | //\r | |
431 | ZeroMem (Hob->Reserved, sizeof (Hob->Reserved)); \r | |
878ddf1f | 432 | }\r |
433 | \r | |
434 | /**\r | |
435 | Builds a HOB for the Stack.\r | |
436 | \r | |
5f10fa01 | 437 | This function builds a HOB for the stack.\r |
438 | It can only be invoked during PEI phase;\r | |
439 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
440 | If there is no additional space for HOB creation, then ASSERT().\r | |
441 | \r | |
442 | @param BaseAddress The 64 bit physical address of the Stack.\r | |
443 | @param Length The length of the stack in bytes.\r | |
878ddf1f | 444 | \r |
445 | **/\r | |
446 | VOID\r | |
447 | EFIAPI\r | |
448 | BuildStackHob (\r | |
449 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
450 | IN UINT64 Length\r | |
451 | )\r | |
452 | {\r | |
453 | EFI_HOB_MEMORY_ALLOCATION_STACK *Hob;\r | |
454 | \r | |
455 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, sizeof (EFI_HOB_MEMORY_ALLOCATION_STACK));\r | |
456 | \r | |
457 | CopyGuid (&(Hob->AllocDescriptor.Name), &gEfiHobMemoryAllocStackGuid);\r | |
458 | Hob->AllocDescriptor.MemoryBaseAddress = BaseAddress;\r | |
459 | Hob->AllocDescriptor.MemoryLength = Length;\r | |
460 | Hob->AllocDescriptor.MemoryType = EfiConventionalMemory;\r | |
d4f397c0 | 461 | \r |
462 | //\r | |
463 | // Zero the reserved space to match HOB spec\r | |
464 | //\r | |
465 | ZeroMem (Hob->AllocDescriptor.Reserved, sizeof (Hob->AllocDescriptor.Reserved));\r | |
878ddf1f | 466 | }\r |
467 | \r | |
468 | /**\r | |
469 | Builds a HOB for the BSP store.\r | |
470 | \r | |
5f10fa01 | 471 | This function builds a HOB for BSP store.\r |
472 | It can only be invoked during PEI phase;\r | |
473 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
474 | If there is no additional space for HOB creation, then ASSERT().\r | |
475 | \r | |
476 | @param BaseAddress The 64 bit physical address of the BSP.\r | |
477 | @param Length The length of the BSP store in bytes.\r | |
478 | @param MemoryType Type of memory allocated by this HOB.\r | |
878ddf1f | 479 | \r |
480 | **/\r | |
481 | VOID\r | |
482 | EFIAPI\r | |
483 | BuildBspStoreHob (\r | |
484 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
485 | IN UINT64 Length,\r | |
486 | IN EFI_MEMORY_TYPE MemoryType\r | |
487 | )\r | |
488 | {\r | |
489 | EFI_HOB_MEMORY_ALLOCATION_BSP_STORE *Hob;\r | |
490 | \r | |
491 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, sizeof (EFI_HOB_MEMORY_ALLOCATION_BSP_STORE));\r | |
492 | \r | |
493 | CopyGuid (&(Hob->AllocDescriptor.Name), &gEfiHobMemoryAllocBspStoreGuid);\r | |
494 | Hob->AllocDescriptor.MemoryBaseAddress = BaseAddress;\r | |
495 | Hob->AllocDescriptor.MemoryLength = Length;\r | |
496 | Hob->AllocDescriptor.MemoryType = MemoryType;\r | |
d4f397c0 | 497 | \r |
498 | //\r | |
499 | // Zero the reserved space to match HOB spec\r | |
500 | //\r | |
501 | ZeroMem (Hob->AllocDescriptor.Reserved, sizeof (Hob->AllocDescriptor.Reserved));\r | |
878ddf1f | 502 | }\r |
503 | \r | |
504 | /**\r | |
505 | Builds a HOB for the memory allocation.\r | |
506 | \r | |
5f10fa01 | 507 | This function builds a HOB for the memory allocation.\r |
508 | It can only be invoked during PEI phase;\r | |
509 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
510 | If there is no additional space for HOB creation, then ASSERT().\r | |
511 | \r | |
512 | @param BaseAddress The 64 bit physical address of the memory.\r | |
513 | @param Length The length of the memory allocation in bytes.\r | |
514 | @param MemoryType Type of memory allocated by this HOB.\r | |
878ddf1f | 515 | \r |
516 | **/\r | |
517 | VOID\r | |
518 | EFIAPI\r | |
519 | BuildMemoryAllocationHob (\r | |
520 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
521 | IN UINT64 Length,\r | |
522 | IN EFI_MEMORY_TYPE MemoryType\r | |
523 | )\r | |
524 | {\r | |
525 | EFI_HOB_MEMORY_ALLOCATION *Hob;\r | |
526 | \r | |
527 | Hob = InternalPeiCreateHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, sizeof (EFI_HOB_MEMORY_ALLOCATION));\r | |
528 | \r | |
529 | ZeroMem (&(Hob->AllocDescriptor.Name), sizeof (EFI_GUID));\r | |
530 | Hob->AllocDescriptor.MemoryBaseAddress = BaseAddress;\r | |
531 | Hob->AllocDescriptor.MemoryLength = Length;\r | |
532 | Hob->AllocDescriptor.MemoryType = MemoryType;\r | |
d4f397c0 | 533 | //\r |
534 | // Zero the reserved space to match HOB spec\r | |
535 | //\r | |
536 | ZeroMem (Hob->AllocDescriptor.Reserved, sizeof (Hob->AllocDescriptor.Reserved));\r | |
878ddf1f | 537 | }\r |