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fb3df220 | 1 | /** @file\r |
2 | Public include file for the HOB Library\r | |
3 | \r | |
4 | Copyright (c) 2006 - 2007, Intel Corporation \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.h\r | |
14 | \r | |
15 | **/\r | |
16 | \r | |
17 | #ifndef __HOB_LIB_H__\r | |
18 | #define __HOB_LIB_H__\r | |
19 | \r | |
20 | /**\r | |
21 | Returns the pointer to the HOB list.\r | |
22 | \r | |
23 | This function returns the pointer to first HOB in the list.\r | |
24 | \r | |
25 | @return The pointer to the HOB list.\r | |
26 | \r | |
27 | **/\r | |
28 | VOID *\r | |
29 | EFIAPI\r | |
30 | GetHobList (\r | |
31 | VOID\r | |
32 | )\r | |
33 | ;\r | |
34 | \r | |
35 | /**\r | |
36 | Returns the next instance of a HOB type from the starting HOB.\r | |
37 | \r | |
38 | This function searches the first instance of a HOB type from the starting HOB pointer. \r | |
39 | If there does not exist such HOB type from the starting HOB pointer, it will return NULL.\r | |
40 | In contrast with macro GET_NEXT_HOB(), this function does not skip the starting HOB pointer\r | |
41 | unconditionally: it returns HobStart back if HobStart itself meets the requirement;\r | |
42 | caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.\r | |
43 | If HobStart is NULL, then ASSERT().\r | |
44 | \r | |
45 | @param Type The HOB type to return.\r | |
46 | @param HobStart The starting HOB pointer to search from.\r | |
47 | \r | |
48 | @return The next instance of a HOB type from the starting HOB.\r | |
49 | \r | |
50 | **/\r | |
51 | VOID *\r | |
52 | EFIAPI\r | |
53 | GetNextHob (\r | |
54 | IN UINT16 Type,\r | |
55 | IN CONST VOID *HobStart\r | |
56 | )\r | |
57 | ;\r | |
58 | \r | |
59 | /**\r | |
60 | Returns the first instance of a HOB type among the whole HOB list.\r | |
61 | \r | |
62 | This function searches the first instance of a HOB type among the whole HOB list. \r | |
63 | If there does not exist such HOB type in the HOB list, it will return NULL. \r | |
64 | \r | |
65 | @param Type The HOB type to return.\r | |
66 | \r | |
67 | @return The next instance of a HOB type from the starting HOB.\r | |
68 | \r | |
69 | **/\r | |
70 | VOID *\r | |
71 | EFIAPI\r | |
72 | GetFirstHob (\r | |
73 | IN UINT16 Type\r | |
74 | )\r | |
75 | ;\r | |
76 | \r | |
77 | /**\r | |
78 | This function searches the first instance of a HOB from the starting HOB pointer. \r | |
79 | Such HOB should satisfy two conditions: \r | |
80 | its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the input Guid. \r | |
81 | If there does not exist such HOB from the starting HOB pointer, it will return NULL. \r | |
82 | Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE ()\r | |
83 | to extract the data section and its size info respectively.\r | |
84 | In contrast with macro GET_NEXT_HOB(), this function does not skip the starting HOB pointer\r | |
85 | unconditionally: it returns HobStart back if HobStart itself meets the requirement;\r | |
86 | caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.\r | |
87 | If Guid is NULL, then ASSERT().\r | |
88 | If HobStart is NULL, then ASSERT().\r | |
89 | \r | |
90 | @param Guid The GUID to match with in the HOB list.\r | |
91 | @param HobStart A pointer to a Guid.\r | |
92 | \r | |
93 | @return The next instance of the matched GUID HOB from the starting HOB.\r | |
94 | \r | |
95 | **/\r | |
96 | VOID *\r | |
97 | EFIAPI\r | |
98 | GetNextGuidHob (\r | |
99 | IN CONST EFI_GUID *Guid,\r | |
100 | IN CONST VOID *HobStart\r | |
101 | )\r | |
102 | ;\r | |
103 | \r | |
104 | /**\r | |
105 | This function searches the first instance of a HOB among the whole HOB list. \r | |
106 | Such HOB should satisfy two conditions:\r | |
107 | its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the input Guid.\r | |
108 | If there does not exist such HOB from the starting HOB pointer, it will return NULL.\r | |
109 | Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE ()\r | |
110 | to extract the data section and its size info respectively.\r | |
111 | If Guid is NULL, then ASSERT().\r | |
112 | \r | |
113 | @param Guid The GUID to match with in the HOB list.\r | |
114 | \r | |
115 | @return The first instance of the matched GUID HOB among the whole HOB list.\r | |
116 | \r | |
117 | **/\r | |
118 | VOID *\r | |
119 | EFIAPI\r | |
120 | GetFirstGuidHob (\r | |
121 | IN CONST EFI_GUID *Guid\r | |
122 | )\r | |
123 | ;\r | |
124 | \r | |
125 | /**\r | |
126 | Get the Boot Mode from the HOB list.\r | |
127 | \r | |
128 | This function returns the system boot mode information from the \r | |
129 | PHIT HOB in HOB list.\r | |
130 | \r | |
131 | @param VOID\r | |
132 | \r | |
133 | @return The Boot Mode.\r | |
134 | \r | |
135 | **/\r | |
136 | EFI_BOOT_MODE\r | |
137 | EFIAPI\r | |
138 | GetBootModeHob (\r | |
139 | VOID\r | |
140 | )\r | |
141 | ;\r | |
142 | \r | |
143 | /**\r | |
144 | Builds a HOB for a loaded PE32 module.\r | |
145 | \r | |
146 | This function builds a HOB for a loaded PE32 module.\r | |
147 | It can only be invoked during PEI phase;\r | |
148 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
149 | If ModuleName is NULL, then ASSERT().\r | |
150 | If there is no additional space for HOB creation, then ASSERT().\r | |
151 | \r | |
152 | @param ModuleName The GUID File Name of the module.\r | |
153 | @param MemoryAllocationModule The 64 bit physical address of the module.\r | |
154 | @param ModuleLength The length of the module in bytes.\r | |
155 | @param EntryPoint The 64 bit physical address of the module entry point.\r | |
156 | \r | |
157 | **/\r | |
158 | VOID\r | |
159 | EFIAPI\r | |
160 | BuildModuleHob (\r | |
161 | IN CONST EFI_GUID *ModuleName,\r | |
162 | IN EFI_PHYSICAL_ADDRESS MemoryAllocationModule,\r | |
163 | IN UINT64 ModuleLength,\r | |
164 | IN EFI_PHYSICAL_ADDRESS EntryPoint\r | |
165 | )\r | |
166 | ;\r | |
167 | \r | |
168 | /**\r | |
169 | Builds a HOB that describes a chunk of system memory.\r | |
170 | \r | |
171 | This function builds a HOB that describes a chunk of system memory.\r | |
172 | It can only be invoked during PEI phase;\r | |
173 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
174 | If there is no additional space for HOB creation, then ASSERT().\r | |
175 | \r | |
176 | @param ResourceType The type of resource described by this HOB.\r | |
177 | @param ResourceAttribute The resource attributes of the memory described by this HOB.\r | |
178 | @param PhysicalStart The 64 bit physical address of memory described by this HOB.\r | |
179 | @param NumberOfBytes The length of the memory described by this HOB in bytes.\r | |
180 | \r | |
181 | **/\r | |
182 | VOID\r | |
183 | EFIAPI\r | |
184 | BuildResourceDescriptorHob (\r | |
185 | IN EFI_RESOURCE_TYPE ResourceType,\r | |
186 | IN EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute,\r | |
187 | IN EFI_PHYSICAL_ADDRESS PhysicalStart,\r | |
188 | IN UINT64 NumberOfBytes\r | |
189 | )\r | |
190 | ;\r | |
191 | \r | |
192 | /**\r | |
193 | Builds a GUID HOB with a certain data length.\r | |
194 | \r | |
195 | This function builds a customized HOB tagged with a GUID for identification \r | |
196 | and returns the start address of GUID HOB data so that caller can fill the customized data. \r | |
197 | The HOB Header and Name field is already stripped.\r | |
198 | It can only be invoked during PEI phase;\r | |
199 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
200 | If Guid is NULL, then ASSERT().\r | |
201 | If there is no additional space for HOB creation, then ASSERT().\r | |
202 | If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().\r | |
203 | \r | |
204 | @param Guid The GUID to tag the customized HOB.\r | |
205 | @param DataLength The size of the data payload for the GUID HOB.\r | |
206 | \r | |
207 | @return The start address of GUID HOB data.\r | |
208 | \r | |
209 | **/\r | |
210 | VOID *\r | |
211 | EFIAPI\r | |
212 | BuildGuidHob (\r | |
213 | IN CONST EFI_GUID *Guid,\r | |
214 | IN UINTN DataLength\r | |
215 | )\r | |
216 | ;\r | |
217 | \r | |
218 | /**\r | |
219 | Copies a data buffer to a newly-built HOB.\r | |
220 | \r | |
221 | This function builds a customized HOB tagged with a GUID for identification,\r | |
222 | copies the input data to the HOB data field and returns the start address of the GUID HOB data.\r | |
223 | The HOB Header and Name field is already stripped.\r | |
224 | It can only be invoked during PEI phase;\r | |
225 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
226 | If Guid is NULL, then ASSERT().\r | |
227 | If Data is NULL and DataLength > 0, then ASSERT().\r | |
228 | If there is no additional space for HOB creation, then ASSERT().\r | |
229 | If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().\r | |
230 | \r | |
231 | @param Guid The GUID to tag the customized HOB.\r | |
232 | @param Data The data to be copied into the data field of the GUID HOB.\r | |
233 | @param DataLength The size of the data payload for the GUID HOB.\r | |
234 | \r | |
235 | @return The start address of GUID HOB data.\r | |
236 | \r | |
237 | **/\r | |
238 | VOID *\r | |
239 | EFIAPI\r | |
240 | BuildGuidDataHob (\r | |
241 | IN CONST EFI_GUID *Guid,\r | |
242 | IN VOID *Data,\r | |
243 | IN UINTN DataLength\r | |
244 | )\r | |
245 | ;\r | |
246 | \r | |
247 | /**\r | |
248 | Builds a Firmware Volume HOB.\r | |
249 | \r | |
250 | This function builds a Firmware Volume HOB.\r | |
251 | It can only be invoked during PEI phase;\r | |
252 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
253 | If there is no additional space for HOB creation, then ASSERT().\r | |
254 | \r | |
255 | @param BaseAddress The base address of the Firmware Volume.\r | |
256 | @param Length The size of the Firmware Volume in bytes.\r | |
257 | \r | |
258 | **/\r | |
259 | VOID\r | |
260 | EFIAPI\r | |
261 | BuildFvHob (\r | |
262 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
263 | IN UINT64 Length\r | |
264 | )\r | |
265 | ;\r | |
266 | \r | |
267 | /**\r | |
268 | Builds a Capsule Volume HOB.\r | |
269 | \r | |
270 | This function builds a Capsule Volume HOB.\r | |
271 | It can only be invoked during PEI phase;\r | |
272 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
273 | If there is no additional space for HOB creation, then ASSERT().\r | |
274 | \r | |
275 | @param BaseAddress The base address of the Capsule Volume.\r | |
276 | @param Length The size of the Capsule Volume in bytes.\r | |
277 | \r | |
278 | **/\r | |
279 | VOID\r | |
280 | EFIAPI\r | |
281 | BuildCvHob (\r | |
282 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
283 | IN UINT64 Length\r | |
284 | )\r | |
285 | ;\r | |
286 | \r | |
287 | /**\r | |
288 | Builds a HOB for the CPU.\r | |
289 | \r | |
290 | This function builds a HOB for the CPU.\r | |
291 | It can only be invoked during PEI phase;\r | |
292 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
293 | If there is no additional space for HOB creation, then ASSERT().\r | |
294 | \r | |
295 | @param SizeOfMemorySpace The maximum physical memory addressability of the processor.\r | |
296 | @param SizeOfIoSpace The maximum physical I/O addressability of the processor.\r | |
297 | \r | |
298 | **/\r | |
299 | VOID\r | |
300 | EFIAPI\r | |
301 | BuildCpuHob (\r | |
302 | IN UINT8 SizeOfMemorySpace,\r | |
303 | IN UINT8 SizeOfIoSpace\r | |
304 | )\r | |
305 | ;\r | |
306 | \r | |
307 | /**\r | |
308 | Builds a HOB for the Stack.\r | |
309 | \r | |
310 | This function builds a HOB for the stack.\r | |
311 | It can only be invoked during PEI phase;\r | |
312 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
313 | If there is no additional space for HOB creation, then ASSERT().\r | |
314 | \r | |
315 | @param BaseAddress The 64 bit physical address of the Stack.\r | |
316 | @param Length The length of the stack in bytes.\r | |
317 | \r | |
318 | **/\r | |
319 | VOID\r | |
320 | EFIAPI\r | |
321 | BuildStackHob (\r | |
322 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
323 | IN UINT64 Length\r | |
324 | )\r | |
325 | ;\r | |
326 | \r | |
327 | /**\r | |
328 | Builds a HOB for the BSP store.\r | |
329 | \r | |
330 | This function builds a HOB for BSP store.\r | |
331 | It can only be invoked during PEI phase;\r | |
332 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
333 | If there is no additional space for HOB creation, then ASSERT().\r | |
334 | \r | |
335 | @param BaseAddress The 64 bit physical address of the BSP.\r | |
336 | @param Length The length of the BSP store in bytes.\r | |
337 | @param MemoryType Type of memory allocated by this HOB.\r | |
338 | \r | |
339 | **/\r | |
340 | VOID\r | |
341 | EFIAPI\r | |
342 | BuildBspStoreHob (\r | |
343 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
344 | IN UINT64 Length,\r | |
345 | IN EFI_MEMORY_TYPE MemoryType\r | |
346 | )\r | |
347 | ;\r | |
348 | \r | |
349 | /**\r | |
350 | Builds a HOB for the memory allocation.\r | |
351 | \r | |
352 | This function builds a HOB for the memory allocation.\r | |
353 | It can only be invoked during PEI phase;\r | |
354 | for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r | |
355 | If there is no additional space for HOB creation, then ASSERT().\r | |
356 | \r | |
357 | @param BaseAddress The 64 bit physical address of the memory.\r | |
358 | @param Length The length of the memory allocation in bytes.\r | |
359 | @param MemoryType Type of memory allocated by this HOB.\r | |
360 | \r | |
361 | **/\r | |
362 | VOID\r | |
363 | EFIAPI\r | |
364 | BuildMemoryAllocationHob (\r | |
365 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
366 | IN UINT64 Length,\r | |
367 | IN EFI_MEMORY_TYPE MemoryType\r | |
368 | )\r | |
369 | ;\r | |
370 | \r | |
146332ae | 371 | #define GET_HOB_TYPE(Hob) ((Hob).Header->HobType)\r |
372 | #define GET_HOB_LENGTH(Hob) ((Hob).Header->HobLength)\r | |
373 | #define GET_NEXT_HOB(Hob) ((Hob).Raw + GET_HOB_LENGTH (Hob))\r | |
374 | #define END_OF_HOB_LIST(Hob) (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_END_OF_HOB_LIST)\r | |
375 | \r | |
376 | //\r | |
377 | // Get the data and data size field of GUID \r | |
378 | //\r | |
379 | #define GET_GUID_HOB_DATA(GuidHob) ((VOID *) (((UINT8 *) &((GuidHob)->Name)) + sizeof (EFI_GUID)))\r | |
380 | #define GET_GUID_HOB_DATA_SIZE(GuidHob) (((GuidHob)->Header).HobLength - sizeof (EFI_HOB_GUID_TYPE))\r | |
381 | \r | |
fb3df220 | 382 | #endif\r |