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aadbf21b | 1 | /**@file\r |
878ddf1f | 2 | \r |
3 | Firmware Volume Block Protocol Runtime Abstraction\r | |
4 | \r | |
5 | mFvbEntry is an array of Handle Fvb pairs. The Fvb Lib Instance matches the \r | |
6 | index in the mFvbEntry array. This should be the same sequence as the FVB's\r | |
7 | were described in the HOB. We have to remember the handle so we can tell if \r | |
8 | the protocol has been reinstalled and it needs updateing.\r | |
9 | \r | |
10 | If you are using any of these lib functions.you must first call FvbInitialize ().\r | |
aadbf21b | 11 | \r |
12 | Copyright (c) 2006, Intel Corporation \r | |
13 | All rights reserved. This program and the accompanying materials \r | |
14 | are licensed and made available under the terms and conditions of the BSD License \r | |
15 | which accompanies this distribution. The full text of the license may be found at \r | |
16 | http://opensource.org/licenses/bsd-license.php \r | |
17 | \r | |
18 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
19 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
878ddf1f | 20 | \r |
aadbf21b | 21 | **/\r |
878ddf1f | 22 | \r |
23 | #include "Fvb.h"\r | |
24 | \r | |
25 | //\r | |
26 | // Lib will ASSERT if more FVB devices than this are added to the system.\r | |
27 | //\r | |
28 | STATIC FVB_ENTRY *mFvbEntry;\r | |
878ddf1f | 29 | STATIC EFI_EVENT mFvbRegistration;\r |
878ddf1f | 30 | STATIC BOOLEAN mEfiFvbInitialized = FALSE;\r |
31 | STATIC UINTN mFvbCount;\r | |
32 | \r | |
aadbf21b | 33 | /**\r |
34 | Check whether an address is runtime memory or not.\r | |
35 | \r | |
36 | @param Address The Address being checked.\r | |
37 | \r | |
38 | @retval TRUE The address is runtime memory.\r | |
39 | @retval FALSE The address is not runtime memory.\r | |
40 | **/\r | |
41 | BOOLEAN\r | |
42 | IsRuntimeMemory (\r | |
43 | IN VOID *Address\r | |
44 | )\r | |
45 | {\r | |
46 | EFI_STATUS Status;\r | |
47 | UINT8 TmpMemoryMap[1];\r | |
48 | UINTN MapKey;\r | |
49 | UINTN DescriptorSize;\r | |
50 | UINT32 DescriptorVersion;\r | |
51 | UINTN MemoryMapSize;\r | |
52 | EFI_MEMORY_DESCRIPTOR *MemoryMap;\r | |
53 | EFI_MEMORY_DESCRIPTOR *MemoryMapPtr;\r | |
54 | BOOLEAN IsRuntime;\r | |
55 | UINTN Index;\r | |
56 | \r | |
57 | IsRuntime = FALSE;\r | |
58 | \r | |
59 | //\r | |
60 | // Get System MemoryMapSize\r | |
61 | //\r | |
62 | MemoryMapSize = 1;\r | |
63 | Status = gBS->GetMemoryMap (\r | |
64 | &MemoryMapSize,\r | |
65 | (EFI_MEMORY_DESCRIPTOR *)TmpMemoryMap,\r | |
66 | &MapKey,\r | |
67 | &DescriptorSize,\r | |
68 | &DescriptorVersion\r | |
69 | );\r | |
70 | ASSERT (Status == EFI_BUFFER_TOO_SMALL);\r | |
71 | //\r | |
72 | // Enlarge space here, because we will allocate pool now.\r | |
73 | //\r | |
74 | MemoryMapSize += EFI_PAGE_SIZE;\r | |
75 | Status = gBS->AllocatePool (\r | |
76 | EfiBootServicesData,\r | |
77 | MemoryMapSize,\r | |
78 | (VOID**)&MemoryMap\r | |
79 | );\r | |
80 | ASSERT_EFI_ERROR (Status);\r | |
81 | \r | |
82 | //\r | |
83 | // Get System MemoryMap\r | |
84 | //\r | |
85 | Status = gBS->GetMemoryMap (\r | |
86 | &MemoryMapSize,\r | |
87 | MemoryMap,\r | |
88 | &MapKey,\r | |
89 | &DescriptorSize,\r | |
90 | &DescriptorVersion\r | |
91 | );\r | |
92 | ASSERT_EFI_ERROR (Status);\r | |
93 | \r | |
94 | MemoryMapPtr = MemoryMap;\r | |
95 | //\r | |
96 | // Search the request Address\r | |
97 | //\r | |
98 | for (Index = 0; Index < (MemoryMapSize / DescriptorSize); Index++) {\r | |
99 | if (((EFI_PHYSICAL_ADDRESS)(UINTN)Address >= MemoryMap->PhysicalStart) &&\r | |
100 | ((EFI_PHYSICAL_ADDRESS)(UINTN)Address < MemoryMap->PhysicalStart\r | |
101 | + LShiftU64 (MemoryMap->NumberOfPages, EFI_PAGE_SHIFT))) {\r | |
102 | //\r | |
103 | // Found it\r | |
104 | //\r | |
105 | if (MemoryMap->Attribute & EFI_MEMORY_RUNTIME) {\r | |
106 | IsRuntime = TRUE;\r | |
107 | }\r | |
108 | break;\r | |
109 | }\r | |
110 | //\r | |
111 | // Get next item\r | |
112 | //\r | |
113 | MemoryMap = (EFI_MEMORY_DESCRIPTOR *)((UINTN)MemoryMap + DescriptorSize);\r | |
114 | }\r | |
115 | \r | |
116 | //\r | |
117 | // Done\r | |
118 | //\r | |
119 | gBS->FreePool (MemoryMapPtr);\r | |
120 | \r | |
121 | return IsRuntime;\r | |
122 | }\r | |
123 | \r | |
124 | /**\r | |
125 | Update mFvbEntry. Add new entry, or update existing entry if Fvb protocol is\r | |
126 | reinstalled.\r | |
127 | \r | |
128 | @param Event The Event that is being processed\r | |
129 | @param Context Event Context\r | |
130 | \r | |
131 | **/\r | |
878ddf1f | 132 | STATIC\r |
133 | VOID\r | |
134 | EFIAPI\r | |
135 | FvbNotificationEvent (\r | |
136 | IN EFI_EVENT Event,\r | |
137 | IN VOID *Context\r | |
138 | )\r | |
878ddf1f | 139 | {\r |
140 | EFI_STATUS Status;\r | |
141 | UINTN BufferSize;\r | |
142 | EFI_HANDLE Handle;\r | |
143 | UINTN Index;\r | |
144 | UINTN UpdateIndex;\r | |
145 | \r | |
146 | while (TRUE) {\r | |
147 | BufferSize = sizeof (Handle);\r | |
148 | Status = gBS->LocateHandle (\r | |
149 | ByRegisterNotify,\r | |
150 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
151 | mFvbRegistration,\r | |
152 | &BufferSize,\r | |
153 | &Handle\r | |
154 | );\r | |
155 | if (EFI_ERROR (Status)) {\r | |
156 | //\r | |
157 | // Exit Path of While Loop....\r | |
158 | //\r | |
159 | break;\r | |
160 | }\r | |
161 | \r | |
162 | UpdateIndex = MAX_FVB_COUNT;\r | |
163 | for (Index = 0; Index < mFvbCount; Index++) {\r | |
164 | if (mFvbEntry[Index].Handle == Handle) {\r | |
165 | //\r | |
166 | // If the handle is already in the table just update the protocol\r | |
167 | //\r | |
168 | UpdateIndex = Index;\r | |
169 | break;\r | |
170 | }\r | |
171 | }\r | |
172 | \r | |
173 | if (UpdateIndex == MAX_FVB_COUNT) {\r | |
174 | //\r | |
175 | // Use the next free slot for a new entry\r | |
176 | //\r | |
a7207480 | 177 | UpdateIndex = mFvbCount++;\r |
aadbf21b | 178 | //\r |
179 | // Check the UpdateIndex whether exceed the maximum value.\r | |
180 | //\r | |
181 | ASSERT (UpdateIndex < MAX_FVB_COUNT);\r | |
878ddf1f | 182 | mFvbEntry[UpdateIndex].Handle = Handle;\r |
183 | }\r | |
184 | //\r | |
185 | // The array does not have enough entries\r | |
186 | //\r | |
187 | ASSERT (UpdateIndex < MAX_FVB_COUNT);\r | |
188 | \r | |
189 | //\r | |
190 | // Get the interface pointer and if it's ours, skip it\r | |
191 | //\r | |
aadbf21b | 192 | Status = gBS->HandleProtocol (\r |
193 | Handle, \r | |
194 | &gEfiFirmwareVolumeBlockProtocolGuid, \r | |
195 | (VOID **) &mFvbEntry[UpdateIndex].Fvb\r | |
196 | );\r | |
878ddf1f | 197 | ASSERT_EFI_ERROR (Status);\r |
198 | \r | |
aadbf21b | 199 | Status = gBS->HandleProtocol (\r |
200 | Handle, \r | |
201 | &gEfiFvbExtensionProtocolGuid, \r | |
202 | (VOID **) &mFvbEntry[UpdateIndex].FvbExtension\r | |
203 | );\r | |
878ddf1f | 204 | if (Status != EFI_SUCCESS) {\r |
205 | mFvbEntry[UpdateIndex].FvbExtension = NULL;\r | |
206 | }\r | |
aadbf21b | 207 | \r |
208 | //\r | |
209 | // Check the FVB can be accessed in RUNTIME, The FVBs in FVB handle list comes\r | |
210 | // from two way:\r | |
211 | // 1) Dxe Core. (FVB information is transferred from FV HOB).\r | |
212 | // 2) FVB driver. \r | |
213 | // The FVB produced Dxe core is used for discoverying DXE driver and dispatch. These\r | |
214 | // FVBs can only be accessed in boot time. \r | |
215 | // FVB driver will discovery all FV in FLASH and these FVBs can be accessed in runtime.\r | |
216 | // The FVB itself produced by FVB driver is allocated in runtime memory. So we can \r | |
217 | // determine the what FVB can be accessed in RUNTIME by judging whether FVB itself is allocated\r | |
218 | // in RUNTIME memory.\r | |
219 | // \r | |
220 | mFvbEntry[UpdateIndex].IsRuntimeAccess = IsRuntimeMemory (mFvbEntry[UpdateIndex].Fvb);\r | |
878ddf1f | 221 | }\r |
222 | }\r | |
223 | \r | |
aadbf21b | 224 | /**\r |
225 | Convert all pointers in mFvbEntry after ExitBootServices.\r | |
226 | \r | |
227 | @param Event The Event that is being processed\r | |
228 | @param Context Event Context\r | |
229 | \r | |
230 | **/\r | |
878ddf1f | 231 | VOID\r |
232 | EFIAPI\r | |
233 | FvbVirtualAddressChangeNotifyEvent (\r | |
234 | IN EFI_EVENT Event,\r | |
235 | IN VOID *Context\r | |
236 | )\r | |
878ddf1f | 237 | {\r |
238 | UINTN Index;\r | |
239 | if (mFvbEntry != NULL) {\r | |
240 | for (Index = 0; Index < MAX_FVB_COUNT; Index++) {\r | |
aadbf21b | 241 | if (!mFvbEntry[Index].IsRuntimeAccess) {\r |
242 | continue;\r | |
243 | }\r | |
244 | \r | |
878ddf1f | 245 | if (NULL != mFvbEntry[Index].Fvb) {\r |
246 | EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->GetBlockSize);\r | |
247 | EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->GetPhysicalAddress);\r | |
248 | EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->GetVolumeAttributes);\r | |
249 | EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->SetVolumeAttributes);\r | |
250 | EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->Read);\r | |
251 | EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->Write);\r | |
252 | EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->EraseBlocks);\r | |
253 | EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb);\r | |
254 | }\r | |
255 | \r | |
256 | if (NULL != mFvbEntry[Index].FvbExtension) {\r | |
257 | EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].FvbExtension->EraseFvbCustomBlock);\r | |
258 | EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].FvbExtension);\r | |
259 | }\r | |
260 | }\r | |
261 | \r | |
262 | EfiConvertPointer (0x0, (VOID **) &mFvbEntry);\r | |
263 | }\r | |
264 | }\r | |
265 | \r | |
aadbf21b | 266 | /**\r |
267 | Library constructor function entry.\r | |
268 | \r | |
269 | @param ImageHandle The handle of image who call this libary.\r | |
270 | @param SystemTable The point of System Table.\r | |
271 | \r | |
272 | @retval EFI_SUCESS Sucess construct this library.\r | |
273 | @retval Others Fail to contruct this libary.\r | |
274 | **/\r | |
878ddf1f | 275 | EFI_STATUS\r |
276 | EFIAPI\r | |
277 | FvbLibInitialize (\r | |
278 | IN EFI_HANDLE ImageHandle,\r | |
279 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
280 | )\r | |
878ddf1f | 281 | {\r |
282 | UINTN Status;\r | |
283 | mFvbCount = 0;\r | |
284 | \r | |
285 | Status = gBS->AllocatePool (\r | |
286 | EfiRuntimeServicesData,\r | |
287 | (UINTN) sizeof (FVB_ENTRY) * MAX_FVB_COUNT,\r | |
288 | (VOID *) &mFvbEntry\r | |
289 | );\r | |
290 | \r | |
291 | if (EFI_ERROR (Status)) {\r | |
292 | return Status;\r | |
293 | }\r | |
294 | \r | |
295 | ZeroMem (mFvbEntry, sizeof (FVB_ENTRY) * MAX_FVB_COUNT);\r | |
296 | \r | |
297 | EfiCreateProtocolNotifyEvent (\r | |
298 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
299 | EFI_TPL_CALLBACK,\r | |
300 | FvbNotificationEvent,\r | |
301 | NULL,\r | |
302 | &mFvbRegistration\r | |
303 | );\r | |
304 | \r | |
305 | //\r | |
306 | // Register SetVirtualAddressMap () notify function\r | |
307 | //\r | |
308 | // Status = gBS->CreateEvent (\r | |
309 | // EFI_EVENT_SIGNAL_VIRTUAL_ADDRESS_CHANGE,\r | |
310 | // EFI_TPL_NOTIFY,\r | |
311 | // EfiRuntimeLibFvbVirtualNotifyEvent,\r | |
312 | // NULL,\r | |
313 | // &mEfiFvbVirtualNotifyEvent\r | |
314 | // );\r | |
315 | // ASSERT_EFI_ERROR (Status);\r | |
316 | //\r | |
317 | \r | |
318 | //\r | |
319 | // Register SetVirtualAddressMap () notify function\r | |
320 | //\r | |
321 | \r | |
322 | ASSERT_EFI_ERROR (Status);\r | |
323 | \r | |
324 | mEfiFvbInitialized = TRUE;\r | |
325 | \r | |
326 | return EFI_SUCCESS;\r | |
327 | }\r | |
aadbf21b | 328 | \r |
329 | // \r | |
330 | // =============================================================================\r | |
878ddf1f | 331 | // The following functions wrap Fvb protocol in the Runtime Lib functions.\r |
332 | // The Instance translates into Fvb instance. The Fvb order defined by HOBs and\r | |
333 | // thus the sequence of FVB protocol addition define Instance.\r | |
334 | //\r | |
335 | // EfiFvbInitialize () must be called before any of the following functions\r | |
336 | // must be called.\r | |
aadbf21b | 337 | // =============================================================================\r |
338 | // \r | |
339 | \r | |
340 | /**\r | |
341 | Reads specified number of bytes into a buffer from the specified block\r | |
878ddf1f | 342 | \r |
aadbf21b | 343 | @param Instance The FV instance to be read from.\r |
344 | @param Lba The logical block address to be read from\r | |
345 | @param Offset Offset into the block at which to begin reading\r | |
346 | @param NumBytes Pointer that on input contains the total size of\r | |
347 | the buffer. On output, it contains the total number\r | |
348 | of bytes read\r | |
349 | @param Buffer Pointer to a caller allocated buffer that will be\r | |
350 | used to hold the data read\r | |
351 | \r | |
352 | @retval EFI_INVALID_PARAMETER Invalid parameter\r | |
353 | @retval EFI_SUCESS Sucess to Read block\r | |
354 | @retval Others Fail to read block\r | |
355 | **/\r | |
878ddf1f | 356 | EFI_STATUS\r |
357 | EfiFvbReadBlock (\r | |
358 | IN UINTN Instance,\r | |
359 | IN EFI_LBA Lba,\r | |
360 | IN UINTN Offset,\r | |
361 | IN OUT UINTN *NumBytes,\r | |
362 | IN UINT8 *Buffer\r | |
363 | )\r | |
878ddf1f | 364 | {\r |
365 | if (Instance >= mFvbCount) {\r | |
366 | return EFI_INVALID_PARAMETER;\r | |
367 | }\r | |
368 | \r | |
aadbf21b | 369 | if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {\r |
370 | return EFI_INVALID_PARAMETER;\r | |
371 | }\r | |
372 | \r | |
878ddf1f | 373 | return mFvbEntry[Instance].Fvb->Read (mFvbEntry[Instance].Fvb, Lba, Offset, NumBytes, Buffer);\r |
374 | }\r | |
375 | \r | |
aadbf21b | 376 | /**\r |
377 | Writes specified number of bytes from the input buffer to the block\r | |
378 | \r | |
379 | @param Instance The FV instance to be written to\r | |
380 | @param Lba The starting logical block index to write to\r | |
381 | @param Offset Offset into the block at which to begin writing\r | |
382 | @param NumBytes Pointer that on input contains the total size of\r | |
383 | the buffer. On output, it contains the total number\r | |
384 | of bytes actually written\r | |
385 | @param Buffer Pointer to a caller allocated buffer that contains\r | |
386 | the source for the write\r | |
387 | \r | |
388 | @retval EFI_INVALID_PARAMETER Invalid parameter\r | |
389 | @retval EFI_SUCESS Sucess to write block\r | |
390 | @retval Others Fail to write block\r | |
391 | **/\r | |
878ddf1f | 392 | EFI_STATUS\r |
393 | EfiFvbWriteBlock (\r | |
394 | IN UINTN Instance,\r | |
395 | IN EFI_LBA Lba,\r | |
396 | IN UINTN Offset,\r | |
397 | IN OUT UINTN *NumBytes,\r | |
398 | IN UINT8 *Buffer\r | |
399 | )\r | |
878ddf1f | 400 | {\r |
401 | if (Instance >= mFvbCount) {\r | |
402 | return EFI_INVALID_PARAMETER;\r | |
403 | }\r | |
404 | \r | |
aadbf21b | 405 | if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {\r |
406 | return EFI_INVALID_PARAMETER;\r | |
407 | }\r | |
408 | \r | |
878ddf1f | 409 | return mFvbEntry[Instance].Fvb->Write (mFvbEntry[Instance].Fvb, Lba, Offset, NumBytes, Buffer);\r |
410 | }\r | |
411 | \r | |
aadbf21b | 412 | /**\r |
413 | Erases and initializes a firmware volume block\r | |
414 | \r | |
415 | @param Instance The FV instance to be erased\r | |
416 | @param Lba The logical block index to be erased\r | |
417 | \r | |
418 | @retval EFI_INVALID_PARAMETER Invalid parameter\r | |
419 | @retval EFI_SUCESS Sucess to erase block\r | |
420 | @retval Others Fail to erase block\r | |
421 | **/\r | |
878ddf1f | 422 | EFI_STATUS\r |
423 | EfiFvbEraseBlock (\r | |
424 | IN UINTN Instance,\r | |
425 | IN EFI_LBA Lba\r | |
426 | )\r | |
878ddf1f | 427 | {\r |
428 | if (Instance >= mFvbCount) {\r | |
429 | return EFI_INVALID_PARAMETER;\r | |
430 | }\r | |
431 | \r | |
aadbf21b | 432 | if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {\r |
433 | return EFI_INVALID_PARAMETER;\r | |
434 | }\r | |
435 | \r | |
878ddf1f | 436 | return mFvbEntry[Instance].Fvb->EraseBlocks (mFvbEntry[Instance].Fvb, Lba, -1);\r |
437 | }\r | |
438 | \r | |
aadbf21b | 439 | /**\r |
440 | Retrieves attributes, insures positive polarity of attribute bits, returns\r | |
441 | resulting attributes in output parameter\r | |
442 | \r | |
443 | @param Instance The FV instance whose attributes is going to be returned\r | |
444 | @param Attributes Output buffer which contains attributes\r | |
445 | \r | |
446 | @retval EFI_INVALID_PARAMETER Invalid parameter\r | |
447 | @retval EFI_SUCESS Sucess to get Fv attribute\r | |
448 | @retval Others Fail to get Fv attribute\r | |
449 | **/\r | |
878ddf1f | 450 | EFI_STATUS\r |
451 | EfiFvbGetVolumeAttributes (\r | |
452 | IN UINTN Instance,\r | |
453 | OUT EFI_FVB_ATTRIBUTES *Attributes\r | |
454 | )\r | |
878ddf1f | 455 | {\r |
456 | if (Instance >= mFvbCount) {\r | |
457 | return EFI_INVALID_PARAMETER;\r | |
458 | }\r | |
459 | \r | |
aadbf21b | 460 | if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {\r |
461 | return EFI_INVALID_PARAMETER;\r | |
462 | }\r | |
463 | \r | |
878ddf1f | 464 | return mFvbEntry[Instance].Fvb->GetVolumeAttributes (mFvbEntry[Instance].Fvb, Attributes);\r |
465 | }\r | |
466 | \r | |
aadbf21b | 467 | /**\r |
468 | Modifies the current settings of the firmware volume according to the \r | |
469 | input parameter, and returns the new setting of the volume\r | |
878ddf1f | 470 | \r |
aadbf21b | 471 | @param Instance The FV instance whose attributes is going to be \r |
878ddf1f | 472 | modified\r |
aadbf21b | 473 | @param Attributes On input, it is a pointer to EFI_FVB_ATTRIBUTES \r |
878ddf1f | 474 | containing the desired firmware volume settings.\r |
475 | On successful return, it contains the new settings\r | |
476 | of the firmware volume\r | |
aadbf21b | 477 | \r |
478 | @retval EFI_INVALID_PARAMETER Invalid parameter\r | |
479 | @retval EFI_SUCESS Sucess to set Fv attribute\r | |
480 | @retval Others Fail to set Fv attribute\r | |
481 | **/\r | |
482 | EFI_STATUS\r | |
483 | EfiFvbSetVolumeAttributes (\r | |
484 | IN UINTN Instance,\r | |
485 | IN EFI_FVB_ATTRIBUTES Attributes\r | |
486 | )\r | |
878ddf1f | 487 | {\r |
488 | if (Instance >= mFvbCount) {\r | |
489 | return EFI_INVALID_PARAMETER;\r | |
490 | }\r | |
491 | \r | |
aadbf21b | 492 | if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {\r |
493 | return EFI_INVALID_PARAMETER;\r | |
494 | }\r | |
495 | \r | |
878ddf1f | 496 | return mFvbEntry[Instance].Fvb->SetVolumeAttributes (mFvbEntry[Instance].Fvb, &Attributes);\r |
497 | }\r | |
498 | \r | |
aadbf21b | 499 | /**\r |
500 | Retrieves the physical address of a memory mapped FV\r | |
501 | \r | |
502 | @param Instance The FV instance whose base address is going to be\r | |
503 | returned\r | |
504 | @param BaseAddress Pointer to a caller allocated EFI_PHYSICAL_ADDRESS \r | |
505 | that on successful return, contains the base address\r | |
506 | of the firmware volume.\r | |
507 | \r | |
508 | @retval EFI_INVALID_PARAMETER Invalid parameter\r | |
509 | @retval EFI_SUCESS Sucess to get physical address\r | |
510 | @retval Others Fail to get physical address\r | |
511 | **/\r | |
878ddf1f | 512 | EFI_STATUS\r |
513 | EfiFvbGetPhysicalAddress (\r | |
514 | IN UINTN Instance,\r | |
515 | OUT EFI_PHYSICAL_ADDRESS *BaseAddress\r | |
516 | )\r | |
878ddf1f | 517 | {\r |
518 | if (Instance >= mFvbCount) {\r | |
519 | return EFI_INVALID_PARAMETER;\r | |
520 | }\r | |
521 | \r | |
aadbf21b | 522 | if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {\r |
523 | return EFI_INVALID_PARAMETER;\r | |
524 | }\r | |
525 | \r | |
878ddf1f | 526 | return mFvbEntry[Instance].Fvb->GetPhysicalAddress (mFvbEntry[Instance].Fvb, BaseAddress);\r |
527 | }\r | |
528 | \r | |
aadbf21b | 529 | /**\r |
530 | Retrieve the size of a logical block\r | |
531 | \r | |
532 | @param Instance The FV instance whose block size is going to be\r | |
533 | returned\r | |
534 | @param Lba Indicates which block to return the size for.\r | |
535 | @param BlockSize A pointer to a caller allocated UINTN in which\r | |
536 | the size of the block is returned\r | |
537 | @param NumOfBlocks a pointer to a caller allocated UINTN in which the\r | |
538 | number of consecutive blocks starting with Lba is\r | |
539 | returned. All blocks in this range have a size of\r | |
540 | BlockSize\r | |
541 | \r | |
542 | @retval EFI_INVALID_PARAMETER Invalid parameter\r | |
543 | @retval EFI_SUCESS Sucess to get block size\r | |
544 | @retval Others Fail to get block size\r | |
545 | **/\r | |
878ddf1f | 546 | EFI_STATUS\r |
547 | EfiFvbGetBlockSize (\r | |
548 | IN UINTN Instance,\r | |
549 | IN EFI_LBA Lba,\r | |
550 | OUT UINTN *BlockSize,\r | |
551 | OUT UINTN *NumOfBlocks\r | |
552 | )\r | |
878ddf1f | 553 | {\r |
554 | if (Instance >= mFvbCount) {\r | |
555 | return EFI_INVALID_PARAMETER;\r | |
556 | }\r | |
557 | \r | |
aadbf21b | 558 | if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {\r |
559 | return EFI_INVALID_PARAMETER;\r | |
560 | }\r | |
561 | \r | |
878ddf1f | 562 | return mFvbEntry[Instance].Fvb->GetBlockSize (mFvbEntry[Instance].Fvb, Lba, BlockSize, NumOfBlocks);\r |
563 | }\r | |
564 | \r | |
aadbf21b | 565 | /**\r |
566 | Erases and initializes a specified range of a firmware volume\r | |
567 | \r | |
568 | @param Instance The FV instance to be erased\r | |
569 | @param StartLba The starting logical block index to be erased\r | |
570 | @param OffsetStartLba Offset into the starting block at which to \r | |
571 | begin erasing\r | |
572 | @param LastLba The last logical block index to be erased\r | |
573 | @param OffsetLastLba Offset into the last block at which to end erasing\r | |
574 | \r | |
575 | @retval EFI_INVALID_PARAMETER Invalid parameter\r | |
576 | @retval EFI_SUCESS Sucess to erase custom block range\r | |
577 | @retval Others Fail to erase custom block range\r | |
578 | **/\r | |
878ddf1f | 579 | EFI_STATUS\r |
580 | EfiFvbEraseCustomBlockRange (\r | |
581 | IN UINTN Instance,\r | |
582 | IN EFI_LBA StartLba,\r | |
583 | IN UINTN OffsetStartLba,\r | |
584 | IN EFI_LBA LastLba,\r | |
585 | IN UINTN OffsetLastLba\r | |
586 | )\r | |
878ddf1f | 587 | {\r |
588 | if (Instance >= mFvbCount) {\r | |
589 | return EFI_INVALID_PARAMETER;\r | |
590 | }\r | |
591 | \r | |
aadbf21b | 592 | if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {\r |
593 | return EFI_INVALID_PARAMETER;\r | |
594 | }\r | |
595 | \r | |
878ddf1f | 596 | if (!(mFvbEntry[Instance].FvbExtension)) {\r |
597 | return EFI_UNSUPPORTED;\r | |
598 | }\r | |
599 | \r | |
600 | if (!(mFvbEntry[Instance].FvbExtension->EraseFvbCustomBlock)) {\r | |
601 | return EFI_UNSUPPORTED;\r | |
602 | }\r | |
603 | \r | |
604 | return mFvbEntry[Instance].FvbExtension->EraseFvbCustomBlock (\r | |
605 | mFvbEntry[Instance].FvbExtension,\r | |
606 | StartLba,\r | |
607 | OffsetStartLba,\r | |
608 | LastLba,\r | |
609 | OffsetLastLba\r | |
610 | );\r | |
611 | }\r |