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a4ce9ffd JJ |
1 | /**@file\r |
2 | \r | |
ea0d111e | 3 | Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>\r |
a4ce9ffd | 4 | \r |
ea0d111e LE |
5 | This program and the accompanying materials are licensed and made available\r |
6 | under the terms and conditions of the BSD License which accompanies this\r | |
7 | distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
a4ce9ffd | 9 | \r |
ea0d111e LE |
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 | |
a4ce9ffd | 12 | \r |
ea0d111e | 13 | Module Name:\r |
a4ce9ffd | 14 | \r |
ea0d111e | 15 | FWBlockService.c\r |
a4ce9ffd | 16 | \r |
ea0d111e LE |
17 | Abstract:\r |
18 | \r | |
19 | Revision History\r | |
a4ce9ffd JJ |
20 | \r |
21 | **/\r | |
22 | \r | |
23 | //\r | |
24 | // The package level header files this module uses\r | |
25 | //\r | |
26 | #include <PiDxe.h>\r | |
27 | \r | |
28 | //\r | |
29 | // The protocols, PPI and GUID defintions for this module\r | |
30 | //\r | |
31 | #include <Guid/EventGroup.h>\r | |
32 | #include <Protocol/FirmwareVolumeBlock.h>\r | |
33 | #include <Protocol/DevicePath.h>\r | |
34 | \r | |
35 | //\r | |
36 | // The Library classes this module consumes\r | |
37 | //\r | |
38 | #include <Library/UefiLib.h>\r | |
39 | #include <Library/UefiDriverEntryPoint.h>\r | |
40 | #include <Library/BaseLib.h>\r | |
41 | #include <Library/DxeServicesTableLib.h>\r | |
42 | #include <Library/UefiRuntimeLib.h>\r | |
43 | #include <Library/DebugLib.h>\r | |
44 | #include <Library/BaseMemoryLib.h>\r | |
45 | #include <Library/MemoryAllocationLib.h>\r | |
46 | #include <Library/UefiBootServicesTableLib.h>\r | |
47 | #include <Library/DevicePathLib.h>\r | |
48 | \r | |
49 | #include "FwBlockService.h"\r | |
50 | #include "QemuFlash.h"\r | |
51 | \r | |
ea0d111e LE |
52 | #define EFI_FVB2_STATUS \\r |
53 | (EFI_FVB2_READ_STATUS | EFI_FVB2_WRITE_STATUS | EFI_FVB2_LOCK_STATUS)\r | |
a4ce9ffd JJ |
54 | \r |
55 | ESAL_FWB_GLOBAL *mFvbModuleGlobal;\r | |
56 | \r | |
57 | FV_MEMMAP_DEVICE_PATH mFvMemmapDevicePathTemplate = {\r | |
58 | {\r | |
59 | {\r | |
60 | HARDWARE_DEVICE_PATH,\r | |
61 | HW_MEMMAP_DP,\r | |
62 | {\r | |
63 | (UINT8)(sizeof (MEMMAP_DEVICE_PATH)),\r | |
64 | (UINT8)(sizeof (MEMMAP_DEVICE_PATH) >> 8)\r | |
65 | }\r | |
66 | },\r | |
67 | EfiMemoryMappedIO,\r | |
68 | (EFI_PHYSICAL_ADDRESS) 0,\r | |
69 | (EFI_PHYSICAL_ADDRESS) 0,\r | |
70 | },\r | |
71 | {\r | |
72 | END_DEVICE_PATH_TYPE,\r | |
73 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
74 | {\r | |
75 | END_DEVICE_PATH_LENGTH,\r | |
76 | 0\r | |
77 | }\r | |
78 | }\r | |
79 | };\r | |
80 | \r | |
81 | FV_PIWG_DEVICE_PATH mFvPIWGDevicePathTemplate = {\r | |
82 | {\r | |
83 | {\r | |
84 | MEDIA_DEVICE_PATH,\r | |
85 | MEDIA_PIWG_FW_VOL_DP,\r | |
86 | {\r | |
87 | (UINT8)(sizeof (MEDIA_FW_VOL_DEVICE_PATH)),\r | |
88 | (UINT8)(sizeof (MEDIA_FW_VOL_DEVICE_PATH) >> 8)\r | |
89 | }\r | |
90 | },\r | |
91 | { 0 }\r | |
92 | },\r | |
93 | {\r | |
94 | END_DEVICE_PATH_TYPE,\r | |
95 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
96 | {\r | |
97 | END_DEVICE_PATH_LENGTH,\r | |
98 | 0\r | |
99 | }\r | |
100 | }\r | |
101 | };\r | |
102 | \r | |
103 | EFI_FW_VOL_BLOCK_DEVICE mFvbDeviceTemplate = {\r | |
104 | FVB_DEVICE_SIGNATURE,\r | |
105 | NULL,\r | |
106 | 0,\r | |
107 | {\r | |
108 | FvbProtocolGetAttributes,\r | |
109 | FvbProtocolSetAttributes,\r | |
110 | FvbProtocolGetPhysicalAddress,\r | |
111 | FvbProtocolGetBlockSize,\r | |
112 | FvbProtocolRead,\r | |
113 | FvbProtocolWrite,\r | |
114 | FvbProtocolEraseBlocks,\r | |
115 | NULL\r | |
116 | }\r | |
117 | };\r | |
118 | \r | |
119 | \r | |
120 | \r | |
121 | VOID\r | |
122 | EFIAPI\r | |
123 | FvbVirtualddressChangeEvent (\r | |
124 | IN EFI_EVENT Event,\r | |
125 | IN VOID *Context\r | |
126 | )\r | |
127 | /*++\r | |
128 | \r | |
ea0d111e | 129 | Routine Description:\r |
a4ce9ffd | 130 | \r |
ea0d111e LE |
131 | Fixup internal data so that EFI and SAL can be call in virtual mode.\r |
132 | Call the passed in Child Notify event and convert the mFvbModuleGlobal\r | |
133 | date items to there virtual address.\r | |
a4ce9ffd | 134 | \r |
ea0d111e LE |
135 | mFvbModuleGlobal->FvInstance[FVB_PHYSICAL] - Physical copy of instance\r |
136 | data\r | |
137 | mFvbModuleGlobal->FvInstance[FVB_VIRTUAL] - Virtual pointer to common\r | |
138 | instance data.\r | |
a4ce9ffd | 139 | \r |
ea0d111e | 140 | Arguments:\r |
a4ce9ffd | 141 | \r |
ea0d111e | 142 | (Standard EFI notify event - EFI_EVENT_NOTIFY)\r |
a4ce9ffd | 143 | \r |
ea0d111e | 144 | Returns:\r |
a4ce9ffd | 145 | \r |
ea0d111e | 146 | None\r |
a4ce9ffd JJ |
147 | \r |
148 | --*/\r | |
149 | {\r | |
150 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
151 | UINTN Index;\r | |
152 | \r | |
ea0d111e LE |
153 | EfiConvertPointer (0x0,\r |
154 | (VOID **) &mFvbModuleGlobal->FvInstance[FVB_VIRTUAL]);\r | |
a4ce9ffd JJ |
155 | \r |
156 | //\r | |
157 | // Convert the base address of all the instances\r | |
158 | //\r | |
159 | Index = 0;\r | |
160 | FwhInstance = mFvbModuleGlobal->FvInstance[FVB_PHYSICAL];\r | |
161 | while (Index < mFvbModuleGlobal->NumFv) {\r | |
162 | EfiConvertPointer (0x0, (VOID **) &FwhInstance->FvBase[FVB_VIRTUAL]);\r | |
163 | FwhInstance = (EFI_FW_VOL_INSTANCE *)\r | |
164 | (\r | |
ea0d111e LE |
165 | (UINTN) ((UINT8 *) FwhInstance) +\r |
166 | FwhInstance->VolumeHeader.HeaderLength +\r | |
167 | (sizeof (EFI_FW_VOL_INSTANCE) - sizeof (EFI_FIRMWARE_VOLUME_HEADER))\r | |
a4ce9ffd JJ |
168 | );\r |
169 | Index++;\r | |
170 | }\r | |
171 | \r | |
ea0d111e LE |
172 | EfiConvertPointer (0x0,\r |
173 | (VOID **) &mFvbModuleGlobal->FvbScratchSpace[FVB_VIRTUAL]);\r | |
a4ce9ffd JJ |
174 | EfiConvertPointer (0x0, (VOID **) &mFvbModuleGlobal);\r |
175 | QemuFlashConvertPointers ();\r | |
176 | }\r | |
177 | \r | |
178 | EFI_STATUS\r | |
179 | GetFvbInstance (\r | |
180 | IN UINTN Instance,\r | |
181 | IN ESAL_FWB_GLOBAL *Global,\r | |
182 | OUT EFI_FW_VOL_INSTANCE **FwhInstance,\r | |
183 | IN BOOLEAN Virtual\r | |
184 | )\r | |
185 | /*++\r | |
186 | \r | |
ea0d111e LE |
187 | Routine Description:\r |
188 | Retrieves the physical address of a memory mapped FV\r | |
a4ce9ffd | 189 | \r |
ea0d111e LE |
190 | Arguments:\r |
191 | Instance - The FV instance whose base address is going to be\r | |
192 | returned\r | |
193 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
194 | instance data\r | |
195 | FwhInstance - The EFI_FW_VOL_INSTANCE fimrware instance structure\r | |
196 | Virtual - Whether CPU is in virtual or physical mode\r | |
a4ce9ffd | 197 | \r |
ea0d111e LE |
198 | Returns:\r |
199 | EFI_SUCCESS - Successfully returns\r | |
200 | EFI_INVALID_PARAMETER - Instance not found\r | |
a4ce9ffd JJ |
201 | \r |
202 | --*/\r | |
203 | {\r | |
204 | EFI_FW_VOL_INSTANCE *FwhRecord;\r | |
205 | \r | |
8c01a99b | 206 | *FwhInstance = NULL;\r |
a4ce9ffd JJ |
207 | if (Instance >= Global->NumFv) {\r |
208 | return EFI_INVALID_PARAMETER;\r | |
209 | }\r | |
210 | //\r | |
211 | // Find the right instance of the FVB private data\r | |
212 | //\r | |
213 | FwhRecord = Global->FvInstance[Virtual];\r | |
214 | while (Instance > 0) {\r | |
215 | FwhRecord = (EFI_FW_VOL_INSTANCE *)\r | |
216 | (\r | |
217 | (UINTN) ((UINT8 *) FwhRecord) + FwhRecord->VolumeHeader.HeaderLength +\r | |
218 | (sizeof (EFI_FW_VOL_INSTANCE) - sizeof (EFI_FIRMWARE_VOLUME_HEADER))\r | |
219 | );\r | |
220 | Instance--;\r | |
221 | }\r | |
222 | \r | |
223 | *FwhInstance = FwhRecord;\r | |
224 | \r | |
225 | return EFI_SUCCESS;\r | |
226 | }\r | |
227 | \r | |
228 | EFI_STATUS\r | |
229 | FvbGetPhysicalAddress (\r | |
230 | IN UINTN Instance,\r | |
231 | OUT EFI_PHYSICAL_ADDRESS *Address,\r | |
232 | IN ESAL_FWB_GLOBAL *Global,\r | |
233 | IN BOOLEAN Virtual\r | |
234 | )\r | |
235 | /*++\r | |
236 | \r | |
ea0d111e LE |
237 | Routine Description:\r |
238 | Retrieves the physical address of a memory mapped FV\r | |
a4ce9ffd | 239 | \r |
ea0d111e LE |
240 | Arguments:\r |
241 | Instance - The FV instance whose base address is going to be\r | |
242 | returned\r | |
243 | Address - Pointer to a caller allocated EFI_PHYSICAL_ADDRESS\r | |
244 | that on successful return, contains the base\r | |
245 | address of the firmware volume.\r | |
246 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
247 | instance data\r | |
248 | Virtual - Whether CPU is in virtual or physical mode\r | |
a4ce9ffd | 249 | \r |
ea0d111e LE |
250 | Returns:\r |
251 | EFI_SUCCESS - Successfully returns\r | |
252 | EFI_INVALID_PARAMETER - Instance not found\r | |
a4ce9ffd JJ |
253 | \r |
254 | --*/\r | |
255 | {\r | |
256 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
257 | EFI_STATUS Status;\r | |
258 | \r | |
259 | //\r | |
260 | // Find the right instance of the FVB private data\r | |
261 | //\r | |
262 | Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);\r | |
263 | ASSERT_EFI_ERROR (Status);\r | |
264 | *Address = FwhInstance->FvBase[Virtual];\r | |
265 | \r | |
266 | return EFI_SUCCESS;\r | |
267 | }\r | |
268 | \r | |
269 | EFI_STATUS\r | |
270 | FvbGetVolumeAttributes (\r | |
271 | IN UINTN Instance,\r | |
272 | OUT EFI_FVB_ATTRIBUTES_2 *Attributes,\r | |
273 | IN ESAL_FWB_GLOBAL *Global,\r | |
274 | IN BOOLEAN Virtual\r | |
275 | )\r | |
276 | /*++\r | |
277 | \r | |
ea0d111e LE |
278 | Routine Description:\r |
279 | Retrieves attributes, insures positive polarity of attribute bits, returns\r | |
280 | resulting attributes in output parameter\r | |
a4ce9ffd | 281 | \r |
ea0d111e LE |
282 | Arguments:\r |
283 | Instance - The FV instance whose attributes is going to be\r | |
284 | returned\r | |
285 | Attributes - Output buffer which contains attributes\r | |
286 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
287 | instance data\r | |
288 | Virtual - Whether CPU is in virtual or physical mode\r | |
a4ce9ffd | 289 | \r |
ea0d111e LE |
290 | Returns:\r |
291 | EFI_SUCCESS - Successfully returns\r | |
292 | EFI_INVALID_PARAMETER - Instance not found\r | |
a4ce9ffd JJ |
293 | \r |
294 | --*/\r | |
295 | {\r | |
296 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
297 | EFI_STATUS Status;\r | |
298 | \r | |
299 | //\r | |
300 | // Find the right instance of the FVB private data\r | |
301 | //\r | |
302 | Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);\r | |
303 | ASSERT_EFI_ERROR (Status);\r | |
304 | *Attributes = FwhInstance->VolumeHeader.Attributes;\r | |
305 | \r | |
306 | return EFI_SUCCESS;\r | |
307 | }\r | |
308 | \r | |
309 | EFI_STATUS\r | |
310 | FvbGetLbaAddress (\r | |
311 | IN UINTN Instance,\r | |
312 | IN EFI_LBA Lba,\r | |
313 | OUT UINTN *LbaAddress,\r | |
314 | OUT UINTN *LbaLength,\r | |
315 | OUT UINTN *NumOfBlocks,\r | |
316 | IN ESAL_FWB_GLOBAL *Global,\r | |
317 | IN BOOLEAN Virtual\r | |
318 | )\r | |
319 | /*++\r | |
320 | \r | |
ea0d111e LE |
321 | Routine Description:\r |
322 | Retrieves the starting address of an LBA in an FV\r | |
323 | \r | |
324 | Arguments:\r | |
325 | Instance - The FV instance which the Lba belongs to\r | |
326 | Lba - The logical block address\r | |
327 | LbaAddress - On output, contains the physical starting address\r | |
328 | of the Lba\r | |
329 | LbaLength - On output, contains the length of the block\r | |
330 | NumOfBlocks - A pointer to a caller allocated UINTN in which the\r | |
331 | number of consecutive blocks starting with Lba is\r | |
332 | returned. All blocks in this range have a size of\r | |
333 | BlockSize\r | |
334 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
335 | instance data\r | |
336 | Virtual - Whether CPU is in virtual or physical mode\r | |
337 | \r | |
338 | Returns:\r | |
339 | EFI_SUCCESS - Successfully returns\r | |
340 | EFI_INVALID_PARAMETER - Instance not found\r | |
a4ce9ffd JJ |
341 | \r |
342 | --*/\r | |
343 | {\r | |
344 | UINT32 NumBlocks;\r | |
345 | UINT32 BlockLength;\r | |
346 | UINTN Offset;\r | |
347 | EFI_LBA StartLba;\r | |
348 | EFI_LBA NextLba;\r | |
349 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
350 | EFI_FV_BLOCK_MAP_ENTRY *BlockMap;\r | |
351 | EFI_STATUS Status;\r | |
352 | \r | |
353 | //\r | |
354 | // Find the right instance of the FVB private data\r | |
355 | //\r | |
356 | Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);\r | |
357 | ASSERT_EFI_ERROR (Status);\r | |
358 | \r | |
359 | StartLba = 0;\r | |
360 | Offset = 0;\r | |
361 | BlockMap = &(FwhInstance->VolumeHeader.BlockMap[0]);\r | |
362 | \r | |
363 | //\r | |
364 | // Parse the blockmap of the FV to find which map entry the Lba belongs to\r | |
365 | //\r | |
366 | while (TRUE) {\r | |
367 | NumBlocks = BlockMap->NumBlocks;\r | |
368 | BlockLength = BlockMap->Length;\r | |
369 | \r | |
370 | if (NumBlocks == 0 || BlockLength == 0) {\r | |
371 | return EFI_INVALID_PARAMETER;\r | |
372 | }\r | |
373 | \r | |
374 | NextLba = StartLba + NumBlocks;\r | |
375 | \r | |
376 | //\r | |
377 | // The map entry found\r | |
378 | //\r | |
379 | if (Lba >= StartLba && Lba < NextLba) {\r | |
380 | Offset = Offset + (UINTN) MultU64x32 ((Lba - StartLba), BlockLength);\r | |
381 | if (LbaAddress != NULL) {\r | |
382 | *LbaAddress = FwhInstance->FvBase[Virtual] + Offset;\r | |
383 | }\r | |
384 | \r | |
385 | if (LbaLength != NULL) {\r | |
386 | *LbaLength = BlockLength;\r | |
387 | }\r | |
388 | \r | |
389 | if (NumOfBlocks != NULL) {\r | |
390 | *NumOfBlocks = (UINTN) (NextLba - Lba);\r | |
391 | }\r | |
392 | \r | |
393 | return EFI_SUCCESS;\r | |
394 | }\r | |
395 | \r | |
396 | StartLba = NextLba;\r | |
397 | Offset = Offset + NumBlocks * BlockLength;\r | |
398 | BlockMap++;\r | |
399 | }\r | |
400 | }\r | |
401 | \r | |
402 | EFI_STATUS\r | |
403 | FvbSetVolumeAttributes (\r | |
404 | IN UINTN Instance,\r | |
405 | IN OUT EFI_FVB_ATTRIBUTES_2 *Attributes,\r | |
406 | IN ESAL_FWB_GLOBAL *Global,\r | |
407 | IN BOOLEAN Virtual\r | |
408 | )\r | |
409 | /*++\r | |
410 | \r | |
ea0d111e LE |
411 | Routine Description:\r |
412 | Modifies the current settings of the firmware volume according to the\r | |
413 | input parameter, and returns the new setting of the volume\r | |
414 | \r | |
415 | Arguments:\r | |
416 | Instance - The FV instance whose attributes is going to be\r | |
417 | modified\r | |
418 | Attributes - On input, it is a pointer to EFI_FVB_ATTRIBUTES_2\r | |
419 | containing the desired firmware volume settings.\r | |
420 | On successful return, it contains the new settings\r | |
421 | of the firmware volume\r | |
422 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
423 | instance data\r | |
424 | Virtual - Whether CPU is in virtual or physical mode\r | |
425 | \r | |
426 | Returns:\r | |
427 | EFI_SUCCESS - Successfully returns\r | |
428 | EFI_ACCESS_DENIED - The volume setting is locked and cannot be modified\r | |
429 | EFI_INVALID_PARAMETER - Instance not found, or The attributes requested are\r | |
430 | in conflict with the capabilities as declared in\r | |
431 | the firmware volume header\r | |
a4ce9ffd JJ |
432 | \r |
433 | --*/\r | |
434 | {\r | |
435 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
436 | EFI_FVB_ATTRIBUTES_2 OldAttributes;\r | |
437 | EFI_FVB_ATTRIBUTES_2 *AttribPtr;\r | |
438 | UINT32 Capabilities;\r | |
439 | UINT32 OldStatus;\r | |
440 | UINT32 NewStatus;\r | |
441 | EFI_STATUS Status;\r | |
442 | EFI_FVB_ATTRIBUTES_2 UnchangedAttributes;\r | |
443 | \r | |
444 | //\r | |
445 | // Find the right instance of the FVB private data\r | |
446 | //\r | |
447 | Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);\r | |
448 | ASSERT_EFI_ERROR (Status);\r | |
449 | \r | |
ea0d111e LE |
450 | AttribPtr =\r |
451 | (EFI_FVB_ATTRIBUTES_2 *) &(FwhInstance->VolumeHeader.Attributes);\r | |
a4ce9ffd JJ |
452 | OldAttributes = *AttribPtr;\r |
453 | Capabilities = OldAttributes & (EFI_FVB2_READ_DISABLED_CAP | \\r | |
454 | EFI_FVB2_READ_ENABLED_CAP | \\r | |
455 | EFI_FVB2_WRITE_DISABLED_CAP | \\r | |
456 | EFI_FVB2_WRITE_ENABLED_CAP | \\r | |
457 | EFI_FVB2_LOCK_CAP \\r | |
458 | );\r | |
459 | OldStatus = OldAttributes & EFI_FVB2_STATUS;\r | |
460 | NewStatus = *Attributes & EFI_FVB2_STATUS;\r | |
461 | \r | |
462 | UnchangedAttributes = EFI_FVB2_READ_DISABLED_CAP | \\r | |
463 | EFI_FVB2_READ_ENABLED_CAP | \\r | |
464 | EFI_FVB2_WRITE_DISABLED_CAP | \\r | |
465 | EFI_FVB2_WRITE_ENABLED_CAP | \\r | |
466 | EFI_FVB2_LOCK_CAP | \\r | |
467 | EFI_FVB2_STICKY_WRITE | \\r | |
468 | EFI_FVB2_MEMORY_MAPPED | \\r | |
469 | EFI_FVB2_ERASE_POLARITY | \\r | |
470 | EFI_FVB2_READ_LOCK_CAP | \\r | |
471 | EFI_FVB2_WRITE_LOCK_CAP | \\r | |
472 | EFI_FVB2_ALIGNMENT;\r | |
473 | \r | |
474 | //\r | |
475 | // Some attributes of FV is read only can *not* be set\r | |
476 | //\r | |
ea0d111e LE |
477 | if ((OldAttributes & UnchangedAttributes) ^\r |
478 | (*Attributes & UnchangedAttributes)) {\r | |
a4ce9ffd JJ |
479 | return EFI_INVALID_PARAMETER;\r |
480 | }\r | |
481 | //\r | |
482 | // If firmware volume is locked, no status bit can be updated\r | |
483 | //\r | |
484 | if (OldAttributes & EFI_FVB2_LOCK_STATUS) {\r | |
485 | if (OldStatus ^ NewStatus) {\r | |
486 | return EFI_ACCESS_DENIED;\r | |
487 | }\r | |
488 | }\r | |
489 | //\r | |
490 | // Test read disable\r | |
491 | //\r | |
492 | if ((Capabilities & EFI_FVB2_READ_DISABLED_CAP) == 0) {\r | |
493 | if ((NewStatus & EFI_FVB2_READ_STATUS) == 0) {\r | |
494 | return EFI_INVALID_PARAMETER;\r | |
495 | }\r | |
496 | }\r | |
497 | //\r | |
498 | // Test read enable\r | |
499 | //\r | |
500 | if ((Capabilities & EFI_FVB2_READ_ENABLED_CAP) == 0) {\r | |
501 | if (NewStatus & EFI_FVB2_READ_STATUS) {\r | |
502 | return EFI_INVALID_PARAMETER;\r | |
503 | }\r | |
504 | }\r | |
505 | //\r | |
506 | // Test write disable\r | |
507 | //\r | |
508 | if ((Capabilities & EFI_FVB2_WRITE_DISABLED_CAP) == 0) {\r | |
509 | if ((NewStatus & EFI_FVB2_WRITE_STATUS) == 0) {\r | |
510 | return EFI_INVALID_PARAMETER;\r | |
511 | }\r | |
512 | }\r | |
513 | //\r | |
514 | // Test write enable\r | |
515 | //\r | |
516 | if ((Capabilities & EFI_FVB2_WRITE_ENABLED_CAP) == 0) {\r | |
517 | if (NewStatus & EFI_FVB2_WRITE_STATUS) {\r | |
518 | return EFI_INVALID_PARAMETER;\r | |
519 | }\r | |
520 | }\r | |
521 | //\r | |
522 | // Test lock\r | |
523 | //\r | |
524 | if ((Capabilities & EFI_FVB2_LOCK_CAP) == 0) {\r | |
525 | if (NewStatus & EFI_FVB2_LOCK_STATUS) {\r | |
526 | return EFI_INVALID_PARAMETER;\r | |
527 | }\r | |
528 | }\r | |
529 | \r | |
530 | *AttribPtr = (*AttribPtr) & (0xFFFFFFFF & (~EFI_FVB2_STATUS));\r | |
531 | *AttribPtr = (*AttribPtr) | NewStatus;\r | |
532 | *Attributes = *AttribPtr;\r | |
533 | \r | |
534 | return EFI_SUCCESS;\r | |
535 | }\r | |
536 | \r | |
537 | //\r | |
538 | // FVB protocol APIs\r | |
539 | //\r | |
540 | EFI_STATUS\r | |
541 | EFIAPI\r | |
542 | FvbProtocolGetPhysicalAddress (\r | |
543 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
544 | OUT EFI_PHYSICAL_ADDRESS *Address\r | |
545 | )\r | |
546 | /*++\r | |
547 | \r | |
ea0d111e | 548 | Routine Description:\r |
a4ce9ffd | 549 | \r |
ea0d111e | 550 | Retrieves the physical address of the device.\r |
a4ce9ffd | 551 | \r |
ea0d111e | 552 | Arguments:\r |
a4ce9ffd | 553 | \r |
ea0d111e LE |
554 | This - Calling context\r |
555 | Address - Output buffer containing the address.\r | |
a4ce9ffd | 556 | \r |
ea0d111e LE |
557 | Returns:\r |
558 | EFI_SUCCESS - Successfully returns\r | |
a4ce9ffd JJ |
559 | \r |
560 | --*/\r | |
561 | {\r | |
562 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
563 | \r | |
564 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
565 | \r | |
ea0d111e LE |
566 | return FvbGetPhysicalAddress (FvbDevice->Instance, Address,\r |
567 | mFvbModuleGlobal, EfiGoneVirtual ());\r | |
a4ce9ffd JJ |
568 | }\r |
569 | \r | |
570 | EFI_STATUS\r | |
571 | EFIAPI\r | |
572 | FvbProtocolGetBlockSize (\r | |
573 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
574 | IN CONST EFI_LBA Lba,\r | |
575 | OUT UINTN *BlockSize,\r | |
576 | OUT UINTN *NumOfBlocks\r | |
577 | )\r | |
578 | /*++\r | |
579 | \r | |
ea0d111e LE |
580 | Routine Description:\r |
581 | Retrieve the size of a logical block\r | |
a4ce9ffd | 582 | \r |
ea0d111e LE |
583 | Arguments:\r |
584 | This - Calling context\r | |
585 | Lba - Indicates which block to return the size for.\r | |
586 | BlockSize - A pointer to a caller allocated UINTN in which\r | |
587 | the size of the block is returned\r | |
588 | NumOfBlocks - a pointer to a caller allocated UINTN in which the\r | |
589 | number of consecutive blocks starting with Lba is\r | |
590 | returned. All blocks in this range have a size of\r | |
591 | BlockSize\r | |
a4ce9ffd | 592 | \r |
ea0d111e LE |
593 | Returns:\r |
594 | EFI_SUCCESS - The firmware volume was read successfully and\r | |
595 | contents are in Buffer\r | |
a4ce9ffd JJ |
596 | \r |
597 | --*/\r | |
598 | {\r | |
599 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
600 | \r | |
601 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
602 | \r | |
603 | return FvbGetLbaAddress (\r | |
604 | FvbDevice->Instance,\r | |
605 | Lba,\r | |
606 | NULL,\r | |
607 | BlockSize,\r | |
608 | NumOfBlocks,\r | |
609 | mFvbModuleGlobal,\r | |
610 | EfiGoneVirtual ()\r | |
611 | );\r | |
612 | }\r | |
613 | \r | |
614 | EFI_STATUS\r | |
615 | EFIAPI\r | |
616 | FvbProtocolGetAttributes (\r | |
617 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
618 | OUT EFI_FVB_ATTRIBUTES_2 *Attributes\r | |
619 | )\r | |
620 | /*++\r | |
621 | \r | |
ea0d111e LE |
622 | Routine Description:\r |
623 | Retrieves Volume attributes. No polarity translations are done.\r | |
a4ce9ffd | 624 | \r |
ea0d111e LE |
625 | Arguments:\r |
626 | This - Calling context\r | |
627 | Attributes - output buffer which contains attributes\r | |
a4ce9ffd | 628 | \r |
ea0d111e LE |
629 | Returns:\r |
630 | EFI_SUCCESS - Successfully returns\r | |
a4ce9ffd JJ |
631 | \r |
632 | --*/\r | |
633 | {\r | |
634 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
635 | \r | |
636 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
637 | \r | |
ea0d111e LE |
638 | return FvbGetVolumeAttributes (FvbDevice->Instance, Attributes,\r |
639 | mFvbModuleGlobal, EfiGoneVirtual ());\r | |
a4ce9ffd JJ |
640 | }\r |
641 | \r | |
642 | EFI_STATUS\r | |
643 | EFIAPI\r | |
644 | FvbProtocolSetAttributes (\r | |
645 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
646 | IN OUT EFI_FVB_ATTRIBUTES_2 *Attributes\r | |
647 | )\r | |
648 | /*++\r | |
649 | \r | |
ea0d111e LE |
650 | Routine Description:\r |
651 | Sets Volume attributes. No polarity translations are done.\r | |
a4ce9ffd | 652 | \r |
ea0d111e LE |
653 | Arguments:\r |
654 | This - Calling context\r | |
655 | Attributes - output buffer which contains attributes\r | |
a4ce9ffd | 656 | \r |
ea0d111e LE |
657 | Returns:\r |
658 | EFI_SUCCESS - Successfully returns\r | |
a4ce9ffd JJ |
659 | \r |
660 | --*/\r | |
661 | {\r | |
662 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
663 | \r | |
664 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
665 | \r | |
ea0d111e LE |
666 | return FvbSetVolumeAttributes (FvbDevice->Instance, Attributes,\r |
667 | mFvbModuleGlobal, EfiGoneVirtual ());\r | |
a4ce9ffd JJ |
668 | }\r |
669 | \r | |
670 | EFI_STATUS\r | |
671 | EFIAPI\r | |
672 | FvbProtocolEraseBlocks (\r | |
673 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
674 | ...\r | |
675 | )\r | |
676 | /*++\r | |
677 | \r | |
ea0d111e | 678 | Routine Description:\r |
a4ce9ffd | 679 | \r |
ea0d111e LE |
680 | The EraseBlock() function erases one or more blocks as denoted by the\r |
681 | variable argument list. The entire parameter list of blocks must be\r | |
682 | verified prior to erasing any blocks. If a block is requested that does\r | |
683 | not exist within the associated firmware volume (it has a larger index than\r | |
684 | the last block of the firmware volume), the EraseBlock() function must\r | |
685 | return EFI_INVALID_PARAMETER without modifying the contents of the firmware\r | |
686 | volume.\r | |
a4ce9ffd | 687 | \r |
ea0d111e LE |
688 | Arguments:\r |
689 | This - Calling context\r | |
690 | ... - Starting LBA followed by Number of Lba to erase.\r | |
691 | a -1 to terminate the list.\r | |
a4ce9ffd | 692 | \r |
ea0d111e LE |
693 | Returns:\r |
694 | EFI_SUCCESS - The erase request was successfully completed\r | |
695 | EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state\r | |
696 | EFI_DEVICE_ERROR - The block device is not functioning correctly and\r | |
697 | could not be written. Firmware device may have been\r | |
698 | partially erased\r | |
a4ce9ffd JJ |
699 | \r |
700 | --*/\r | |
701 | {\r | |
702 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
703 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
704 | UINTN NumOfBlocks;\r | |
705 | VA_LIST args;\r | |
706 | EFI_LBA StartingLba;\r | |
707 | UINTN NumOfLba;\r | |
708 | EFI_STATUS Status;\r | |
709 | \r | |
710 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
711 | \r | |
ea0d111e LE |
712 | Status = GetFvbInstance (FvbDevice->Instance, mFvbModuleGlobal,\r |
713 | &FwhInstance, EfiGoneVirtual ());\r | |
a4ce9ffd JJ |
714 | ASSERT_EFI_ERROR (Status);\r |
715 | \r | |
716 | NumOfBlocks = FwhInstance->NumOfBlocks;\r | |
717 | \r | |
718 | VA_START (args, This);\r | |
719 | \r | |
720 | do {\r | |
721 | StartingLba = VA_ARG (args, EFI_LBA);\r | |
722 | if (StartingLba == EFI_LBA_LIST_TERMINATOR) {\r | |
723 | break;\r | |
724 | }\r | |
725 | \r | |
726 | NumOfLba = VA_ARG (args, UINT32);\r | |
727 | \r | |
728 | //\r | |
729 | // Check input parameters\r | |
730 | //\r | |
731 | if ((NumOfLba == 0) || ((StartingLba + NumOfLba) > NumOfBlocks)) {\r | |
732 | VA_END (args);\r | |
733 | return EFI_INVALID_PARAMETER;\r | |
734 | }\r | |
735 | } while (1);\r | |
736 | \r | |
737 | VA_END (args);\r | |
738 | \r | |
739 | VA_START (args, This);\r | |
740 | do {\r | |
741 | StartingLba = VA_ARG (args, EFI_LBA);\r | |
742 | if (StartingLba == EFI_LBA_LIST_TERMINATOR) {\r | |
743 | break;\r | |
744 | }\r | |
745 | \r | |
746 | NumOfLba = VA_ARG (args, UINT32);\r | |
747 | \r | |
748 | while (NumOfLba > 0) {\r | |
749 | Status = QemuFlashEraseBlock (StartingLba);\r | |
750 | if (EFI_ERROR (Status)) {\r | |
751 | VA_END (args);\r | |
752 | return Status;\r | |
753 | }\r | |
754 | \r | |
755 | StartingLba++;\r | |
756 | NumOfLba--;\r | |
757 | }\r | |
758 | \r | |
759 | } while (1);\r | |
760 | \r | |
761 | VA_END (args);\r | |
762 | \r | |
763 | return EFI_SUCCESS;\r | |
764 | }\r | |
765 | \r | |
766 | EFI_STATUS\r | |
767 | EFIAPI\r | |
768 | FvbProtocolWrite (\r | |
769 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
770 | IN EFI_LBA Lba,\r | |
771 | IN UINTN Offset,\r | |
772 | IN OUT UINTN *NumBytes,\r | |
773 | IN UINT8 *Buffer\r | |
774 | )\r | |
775 | /*++\r | |
776 | \r | |
ea0d111e LE |
777 | Routine Description:\r |
778 | \r | |
779 | Writes data beginning at Lba:Offset from FV. The write terminates either\r | |
780 | when *NumBytes of data have been written, or when a block boundary is\r | |
781 | reached. *NumBytes is updated to reflect the actual number of bytes\r | |
782 | written. The write opertion does not include erase. This routine will\r | |
783 | attempt to write only the specified bytes. If the writes do not stick,\r | |
784 | it will return an error.\r | |
785 | \r | |
786 | Arguments:\r | |
787 | This - Calling context\r | |
788 | Lba - Block in which to begin write\r | |
789 | Offset - Offset in the block at which to begin write\r | |
790 | NumBytes - On input, indicates the requested write size. On\r | |
791 | output, indicates the actual number of bytes\r | |
792 | written\r | |
793 | Buffer - Buffer containing source data for the write.\r | |
794 | \r | |
795 | Returns:\r | |
796 | EFI_SUCCESS - The firmware volume was written successfully\r | |
797 | EFI_BAD_BUFFER_SIZE - Write attempted across a LBA boundary. On output,\r | |
798 | NumBytes contains the total number of bytes\r | |
799 | actually written\r | |
800 | EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state\r | |
801 | EFI_DEVICE_ERROR - The block device is not functioning correctly and\r | |
802 | could not be written\r | |
803 | EFI_INVALID_PARAMETER - NumBytes or Buffer are NULL\r | |
a4ce9ffd JJ |
804 | \r |
805 | --*/\r | |
806 | {\r | |
ea0d111e LE |
807 | return QemuFlashWrite ((EFI_LBA)Lba, (UINTN)Offset, NumBytes,\r |
808 | (UINT8 *)Buffer);\r | |
a4ce9ffd JJ |
809 | }\r |
810 | \r | |
811 | EFI_STATUS\r | |
812 | EFIAPI\r | |
813 | FvbProtocolRead (\r | |
814 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
815 | IN CONST EFI_LBA Lba,\r | |
816 | IN CONST UINTN Offset,\r | |
817 | IN OUT UINTN *NumBytes,\r | |
818 | IN UINT8 *Buffer\r | |
819 | )\r | |
820 | /*++\r | |
821 | \r | |
ea0d111e LE |
822 | Routine Description:\r |
823 | \r | |
824 | Reads data beginning at Lba:Offset from FV. The Read terminates either\r | |
825 | when *NumBytes of data have been read, or when a block boundary is\r | |
826 | reached. *NumBytes is updated to reflect the actual number of bytes\r | |
827 | written. The write opertion does not include erase. This routine will\r | |
828 | attempt to write only the specified bytes. If the writes do not stick,\r | |
829 | it will return an error.\r | |
830 | \r | |
831 | Arguments:\r | |
832 | This - Calling context\r | |
833 | Lba - Block in which to begin Read\r | |
834 | Offset - Offset in the block at which to begin Read\r | |
835 | NumBytes - On input, indicates the requested write size. On\r | |
836 | output, indicates the actual number of bytes Read\r | |
837 | Buffer - Buffer containing source data for the Read.\r | |
838 | \r | |
839 | Returns:\r | |
840 | EFI_SUCCESS - The firmware volume was read successfully and\r | |
841 | contents are in Buffer\r | |
842 | EFI_BAD_BUFFER_SIZE - Read attempted across a LBA boundary. On output,\r | |
843 | NumBytes contains the total number of bytes\r | |
844 | returned in Buffer\r | |
845 | EFI_ACCESS_DENIED - The firmware volume is in the ReadDisabled state\r | |
846 | EFI_DEVICE_ERROR - The block device is not functioning correctly and\r | |
847 | could not be read\r | |
848 | EFI_INVALID_PARAMETER - NumBytes or Buffer are NULL\r | |
a4ce9ffd JJ |
849 | \r |
850 | --*/\r | |
851 | {\r | |
ea0d111e LE |
852 | return QemuFlashRead ((EFI_LBA)Lba, (UINTN)Offset, NumBytes,\r |
853 | (UINT8 *)Buffer);\r | |
a4ce9ffd JJ |
854 | }\r |
855 | \r | |
856 | EFI_STATUS\r | |
857 | ValidateFvHeader (\r | |
858 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader\r | |
859 | )\r | |
860 | /*++\r | |
861 | \r | |
ea0d111e LE |
862 | Routine Description:\r |
863 | Check the integrity of firmware volume header\r | |
a4ce9ffd | 864 | \r |
ea0d111e LE |
865 | Arguments:\r |
866 | FwVolHeader - A pointer to a firmware volume header\r | |
a4ce9ffd | 867 | \r |
ea0d111e LE |
868 | Returns:\r |
869 | EFI_SUCCESS - The firmware volume is consistent\r | |
870 | EFI_NOT_FOUND - The firmware volume has corrupted. So it is not an\r | |
871 | FV\r | |
a4ce9ffd JJ |
872 | \r |
873 | --*/\r | |
874 | {\r | |
875 | UINT16 Checksum;\r | |
876 | \r | |
877 | //\r | |
878 | // Verify the header revision, header signature, length\r | |
879 | // Length of FvBlock cannot be 2**64-1\r | |
880 | // HeaderLength cannot be an odd number\r | |
881 | //\r | |
882 | if ((FwVolHeader->Revision != EFI_FVH_REVISION) ||\r | |
883 | (FwVolHeader->Signature != EFI_FVH_SIGNATURE) ||\r | |
884 | (FwVolHeader->FvLength == ((UINTN) -1)) ||\r | |
885 | ((FwVolHeader->HeaderLength & 0x01) != 0)\r | |
886 | ) {\r | |
887 | return EFI_NOT_FOUND;\r | |
888 | }\r | |
141f0c64 | 889 | \r |
a4ce9ffd JJ |
890 | //\r |
891 | // Verify the header checksum\r | |
892 | //\r | |
893 | \r | |
ea0d111e LE |
894 | Checksum = CalculateSum16 ((UINT16 *) FwVolHeader,\r |
895 | FwVolHeader->HeaderLength);\r | |
a4ce9ffd JJ |
896 | if (Checksum != 0) {\r |
897 | UINT16 Expected;\r | |
898 | \r | |
c4046161 JJ |
899 | Expected =\r |
900 | (UINT16) (((UINTN) FwVolHeader->Checksum + 0x10000 - Checksum) & 0xffff);\r | |
a4ce9ffd JJ |
901 | \r |
902 | DEBUG ((EFI_D_INFO, "FV@%p Checksum is 0x%x, expected 0x%x\n",\r | |
903 | FwVolHeader, FwVolHeader->Checksum, Expected));\r | |
904 | return EFI_NOT_FOUND;\r | |
905 | }\r | |
906 | \r | |
907 | return EFI_SUCCESS;\r | |
908 | }\r | |
909 | \r | |
910 | STATIC\r | |
911 | EFI_STATUS\r | |
912 | MarkMemoryRangeForRuntimeAccess (\r | |
913 | EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
1e62c89c | 914 | UINTN Length\r |
a4ce9ffd JJ |
915 | )\r |
916 | {\r | |
917 | EFI_STATUS Status;\r | |
918 | \r | |
919 | //\r | |
920 | // Mark flash region as runtime memory\r | |
921 | //\r | |
922 | Status = gDS->RemoveMemorySpace (\r | |
923 | BaseAddress,\r | |
924 | Length\r | |
925 | );\r | |
926 | \r | |
927 | Status = gDS->AddMemorySpace (\r | |
928 | EfiGcdMemoryTypeSystemMemory,\r | |
929 | BaseAddress,\r | |
930 | Length,\r | |
931 | EFI_MEMORY_UC | EFI_MEMORY_RUNTIME\r | |
932 | );\r | |
933 | ASSERT_EFI_ERROR (Status);\r | |
934 | \r | |
935 | Status = gBS->AllocatePages (\r | |
936 | AllocateAddress,\r | |
937 | EfiRuntimeServicesData,\r | |
1e62c89c | 938 | EFI_SIZE_TO_PAGES (Length),\r |
a4ce9ffd JJ |
939 | &BaseAddress\r |
940 | );\r | |
941 | ASSERT_EFI_ERROR (Status);\r | |
942 | \r | |
943 | return Status;\r | |
944 | }\r | |
945 | \r | |
946 | STATIC\r | |
947 | EFI_STATUS\r | |
948 | InitializeVariableFvHeader (\r | |
949 | VOID\r | |
950 | )\r | |
951 | {\r | |
952 | EFI_STATUS Status;\r | |
953 | EFI_FIRMWARE_VOLUME_HEADER *GoodFwVolHeader;\r | |
954 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r | |
955 | UINTN Length;\r | |
956 | UINTN WriteLength;\r | |
957 | UINTN BlockSize;\r | |
958 | \r | |
959 | FwVolHeader =\r | |
960 | (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN)\r | |
961 | PcdGet32 (PcdOvmfFlashNvStorageVariableBase);\r | |
962 | \r | |
141f0c64 | 963 | Length =\r |
a4ce9ffd JJ |
964 | (FixedPcdGet32 (PcdFlashNvStorageVariableSize) +\r |
965 | FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) +\r | |
966 | FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) +\r | |
967 | FixedPcdGet32 (PcdOvmfFlashNvStorageEventLogSize));\r | |
968 | \r | |
969 | BlockSize = PcdGet32 (PcdOvmfFirmwareBlockSize);\r | |
970 | \r | |
971 | Status = ValidateFvHeader (FwVolHeader);\r | |
972 | if (!EFI_ERROR (Status)) {\r | |
973 | if (FwVolHeader->FvLength != Length ||\r | |
974 | FwVolHeader->BlockMap[0].Length != BlockSize) {\r | |
975 | Status = EFI_VOLUME_CORRUPTED;\r | |
976 | }\r | |
977 | }\r | |
978 | if (EFI_ERROR (Status)) {\r | |
979 | UINTN Offset;\r | |
980 | UINTN Start;\r | |
981 | \r | |
ea0d111e LE |
982 | DEBUG ((EFI_D_INFO,\r |
983 | "Variable FV header is not valid. It will be reinitialized.\n"));\r | |
a4ce9ffd JJ |
984 | \r |
985 | //\r | |
986 | // Get FvbInfo to provide in FwhInstance.\r | |
987 | //\r | |
988 | Status = GetFvbInfo (Length, &GoodFwVolHeader);\r | |
989 | ASSERT (!EFI_ERROR (Status));\r | |
990 | \r | |
991 | Start = (UINTN)(UINT8*) FwVolHeader - PcdGet32 (PcdOvmfFdBaseAddress);\r | |
992 | ASSERT (Start % BlockSize == 0 && Length % BlockSize == 0);\r | |
993 | ASSERT (GoodFwVolHeader->HeaderLength <= BlockSize);\r | |
994 | \r | |
995 | //\r | |
996 | // Erase all the blocks\r | |
997 | //\r | |
998 | for (Offset = Start; Offset < Start + Length; Offset += BlockSize) {\r | |
1c590152 | 999 | Status = QemuFlashEraseBlock (Offset / BlockSize);\r |
a4ce9ffd JJ |
1000 | ASSERT_EFI_ERROR (Status);\r |
1001 | }\r | |
1002 | \r | |
1003 | //\r | |
1004 | // Write good FV header\r | |
1005 | //\r | |
1006 | WriteLength = GoodFwVolHeader->HeaderLength;\r | |
1007 | Status = QemuFlashWrite (\r | |
1c590152 | 1008 | Start / BlockSize,\r |
a4ce9ffd JJ |
1009 | 0,\r |
1010 | &WriteLength,\r | |
1011 | (UINT8 *) GoodFwVolHeader);\r | |
1012 | ASSERT_EFI_ERROR (Status);\r | |
1013 | ASSERT (WriteLength == GoodFwVolHeader->HeaderLength);\r | |
1014 | }\r | |
1015 | \r | |
1016 | return Status;\r | |
1017 | }\r | |
1018 | \r | |
1019 | EFI_STATUS\r | |
1020 | EFIAPI\r | |
1021 | FvbInitialize (\r | |
1022 | IN EFI_HANDLE ImageHandle,\r | |
1023 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1024 | )\r | |
1025 | /*++\r | |
1026 | \r | |
ea0d111e LE |
1027 | Routine Description:\r |
1028 | This function does common initialization for FVB services\r | |
a4ce9ffd | 1029 | \r |
ea0d111e | 1030 | Arguments:\r |
a4ce9ffd | 1031 | \r |
ea0d111e | 1032 | Returns:\r |
a4ce9ffd JJ |
1033 | \r |
1034 | --*/\r | |
1035 | {\r | |
1036 | EFI_STATUS Status;\r | |
1037 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
1038 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r | |
1039 | UINT32 BufferSize;\r | |
1040 | EFI_FV_BLOCK_MAP_ENTRY *PtrBlockMapEntry;\r | |
1041 | EFI_HANDLE FwbHandle;\r | |
1042 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
1043 | EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *OldFwbInterface;\r | |
1044 | UINT32 MaxLbaSize;\r | |
1045 | EFI_PHYSICAL_ADDRESS BaseAddress;\r | |
1e62c89c | 1046 | UINTN Length;\r |
a4ce9ffd JJ |
1047 | UINTN NumOfBlocks;\r |
1048 | EFI_EVENT VirtualAddressChangeEvent;\r | |
1049 | \r | |
1050 | if (EFI_ERROR (QemuFlashInitialize ())) {\r | |
1051 | //\r | |
1052 | // Return an error so image will be unloaded\r | |
1053 | //\r | |
ea0d111e LE |
1054 | DEBUG ((EFI_D_INFO,\r |
1055 | "QEMU flash was not detected. Writable FVB is not being installed.\n"));\r | |
a4ce9ffd JJ |
1056 | return EFI_WRITE_PROTECTED;\r |
1057 | }\r | |
1058 | \r | |
1059 | //\r | |
1060 | // Allocate runtime services data for global variable, which contains\r | |
1061 | // the private data of all firmware volume block instances\r | |
1062 | //\r | |
1063 | mFvbModuleGlobal = AllocateRuntimePool (sizeof (ESAL_FWB_GLOBAL));\r | |
1064 | ASSERT (mFvbModuleGlobal != NULL);\r | |
1065 | \r | |
1066 | BaseAddress = (UINTN) PcdGet32 (PcdOvmfFdBaseAddress);\r | |
1067 | Length = PcdGet32 (PcdOvmfFirmwareFdSize);\r | |
1068 | \r | |
1069 | Status = InitializeVariableFvHeader ();\r | |
1070 | if (EFI_ERROR (Status)) {\r | |
ea0d111e LE |
1071 | DEBUG ((EFI_D_INFO,\r |
1072 | "QEMU Flash: Unable to initialize variable FV header\n"));\r | |
a4ce9ffd JJ |
1073 | return EFI_WRITE_PROTECTED;\r |
1074 | }\r | |
1075 | \r | |
1076 | FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) BaseAddress;\r | |
1077 | Status = ValidateFvHeader (FwVolHeader);\r | |
1078 | if (EFI_ERROR (Status)) {\r | |
1079 | //\r | |
1080 | // Get FvbInfo\r | |
1081 | //\r | |
1082 | Status = GetFvbInfo (Length, &FwVolHeader);\r | |
1083 | if (EFI_ERROR (Status)) {\r | |
1084 | DEBUG ((EFI_D_INFO, "EFI_ERROR (GetFvbInfo (Length, &FwVolHeader))\n"));\r | |
1085 | return EFI_WRITE_PROTECTED;\r | |
1086 | }\r | |
1087 | }\r | |
1088 | \r | |
ea0d111e LE |
1089 | BufferSize = (sizeof (EFI_FW_VOL_INSTANCE) +\r |
1090 | FwVolHeader->HeaderLength -\r | |
1091 | sizeof (EFI_FIRMWARE_VOLUME_HEADER)\r | |
1092 | );\r | |
a4ce9ffd JJ |
1093 | \r |
1094 | //\r | |
1095 | // Only need to allocate once. There is only one copy of physical memory for\r | |
1096 | // the private data of each FV instance. But in virtual mode or in physical\r | |
1097 | // mode, the address of the the physical memory may be different.\r | |
1098 | //\r | |
ea0d111e LE |
1099 | mFvbModuleGlobal->FvInstance[FVB_PHYSICAL] = AllocateRuntimePool (\r |
1100 | BufferSize);\r | |
a4ce9ffd JJ |
1101 | ASSERT (mFvbModuleGlobal->FvInstance[FVB_PHYSICAL] != NULL);\r |
1102 | \r | |
1103 | //\r | |
1104 | // Make a virtual copy of the FvInstance pointer.\r | |
1105 | //\r | |
1106 | FwhInstance = mFvbModuleGlobal->FvInstance[FVB_PHYSICAL];\r | |
1107 | mFvbModuleGlobal->FvInstance[FVB_VIRTUAL] = FwhInstance;\r | |
1108 | \r | |
1109 | mFvbModuleGlobal->NumFv = 0;\r | |
1110 | MaxLbaSize = 0;\r | |
1111 | \r | |
1112 | FwVolHeader =\r | |
1113 | (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN)\r | |
1114 | PcdGet32 (PcdOvmfFlashNvStorageVariableBase);\r | |
1115 | \r | |
1116 | FwhInstance->FvBase[FVB_PHYSICAL] = (UINTN) BaseAddress;\r | |
1117 | FwhInstance->FvBase[FVB_VIRTUAL] = (UINTN) BaseAddress;\r | |
1118 | \r | |
ea0d111e LE |
1119 | CopyMem ((UINTN *) &(FwhInstance->VolumeHeader), (UINTN *) FwVolHeader,\r |
1120 | FwVolHeader->HeaderLength);\r | |
a4ce9ffd | 1121 | FwVolHeader = &(FwhInstance->VolumeHeader);\r |
a4ce9ffd JJ |
1122 | \r |
1123 | NumOfBlocks = 0;\r | |
1124 | \r | |
ea0d111e LE |
1125 | for (PtrBlockMapEntry = FwVolHeader->BlockMap;\r |
1126 | PtrBlockMapEntry->NumBlocks != 0;\r | |
1127 | PtrBlockMapEntry++) {\r | |
a4ce9ffd JJ |
1128 | //\r |
1129 | // Get the maximum size of a block.\r | |
1130 | //\r | |
1131 | if (MaxLbaSize < PtrBlockMapEntry->Length) {\r | |
1132 | MaxLbaSize = PtrBlockMapEntry->Length;\r | |
1133 | }\r | |
1134 | \r | |
1135 | NumOfBlocks = NumOfBlocks + PtrBlockMapEntry->NumBlocks;\r | |
1136 | }\r | |
1137 | \r | |
1138 | //\r | |
1139 | // The total number of blocks in the FV.\r | |
1140 | //\r | |
1141 | FwhInstance->NumOfBlocks = NumOfBlocks;\r | |
1142 | \r | |
1143 | //\r | |
1144 | // Add a FVB Protocol Instance\r | |
1145 | //\r | |
1146 | FvbDevice = AllocateRuntimePool (sizeof (EFI_FW_VOL_BLOCK_DEVICE));\r | |
1147 | ASSERT (FvbDevice != NULL);\r | |
1148 | \r | |
1149 | CopyMem (FvbDevice, &mFvbDeviceTemplate, sizeof (EFI_FW_VOL_BLOCK_DEVICE));\r | |
1150 | \r | |
1151 | FvbDevice->Instance = mFvbModuleGlobal->NumFv;\r | |
1152 | mFvbModuleGlobal->NumFv++;\r | |
1153 | \r | |
1154 | //\r | |
1155 | // Set up the devicepath\r | |
1156 | //\r | |
1157 | if (FwVolHeader->ExtHeaderOffset == 0) {\r | |
ea0d111e LE |
1158 | FV_MEMMAP_DEVICE_PATH *FvMemmapDevicePath;\r |
1159 | \r | |
a4ce9ffd JJ |
1160 | //\r |
1161 | // FV does not contains extension header, then produce MEMMAP_DEVICE_PATH\r | |
1162 | //\r | |
ea0d111e LE |
1163 | FvMemmapDevicePath = AllocateCopyPool (sizeof (FV_MEMMAP_DEVICE_PATH),\r |
1164 | &mFvMemmapDevicePathTemplate);\r | |
1165 | FvMemmapDevicePath->MemMapDevPath.StartingAddress = BaseAddress;\r | |
1166 | FvMemmapDevicePath->MemMapDevPath.EndingAddress =\r | |
1167 | BaseAddress + FwVolHeader->FvLength - 1;\r | |
1168 | FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *)FvMemmapDevicePath;\r | |
a4ce9ffd | 1169 | } else {\r |
ea0d111e LE |
1170 | FV_PIWG_DEVICE_PATH *FvPiwgDevicePath;\r |
1171 | \r | |
1172 | FvPiwgDevicePath = AllocateCopyPool (sizeof (FV_PIWG_DEVICE_PATH),\r | |
1173 | &mFvPIWGDevicePathTemplate);\r | |
a4ce9ffd | 1174 | CopyGuid (\r |
ea0d111e | 1175 | &FvPiwgDevicePath->FvDevPath.FvName,\r |
a4ce9ffd JJ |
1176 | (GUID *)(UINTN)(BaseAddress + FwVolHeader->ExtHeaderOffset)\r |
1177 | );\r | |
ea0d111e | 1178 | FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *)FvPiwgDevicePath;\r |
a4ce9ffd JJ |
1179 | }\r |
1180 | \r | |
1181 | //\r | |
ea0d111e LE |
1182 | // Find a handle with a matching device path that has supports FW Block\r |
1183 | // protocol\r | |
a4ce9ffd | 1184 | //\r |
ea0d111e LE |
1185 | Status = gBS->LocateDevicePath (&gEfiFirmwareVolumeBlockProtocolGuid,\r |
1186 | &FvbDevice->DevicePath, &FwbHandle);\r | |
a4ce9ffd JJ |
1187 | if (EFI_ERROR (Status)) {\r |
1188 | //\r | |
1189 | // LocateDevicePath fails so install a new interface and device path\r | |
1190 | //\r | |
1191 | FwbHandle = NULL;\r | |
1192 | DEBUG ((EFI_D_INFO, "Installing QEMU flash FVB\n"));\r | |
1193 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
1194 | &FwbHandle,\r | |
1195 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
1196 | &FvbDevice->FwVolBlockInstance,\r | |
1197 | &gEfiDevicePathProtocolGuid,\r | |
1198 | FvbDevice->DevicePath,\r | |
1199 | NULL\r | |
1200 | );\r | |
1201 | ASSERT_EFI_ERROR (Status);\r | |
1202 | } else if (IsDevicePathEnd (FvbDevice->DevicePath)) {\r | |
1203 | //\r | |
1204 | // Device already exists, so reinstall the FVB protocol\r | |
1205 | //\r | |
1206 | Status = gBS->HandleProtocol (\r | |
1207 | FwbHandle,\r | |
1208 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
1209 | (VOID**)&OldFwbInterface\r | |
1210 | );\r | |
1211 | ASSERT_EFI_ERROR (Status);\r | |
1212 | \r | |
1213 | DEBUG ((EFI_D_INFO, "Reinstalling FVB for QEMU flash region\n"));\r | |
1214 | Status = gBS->ReinstallProtocolInterface (\r | |
1215 | FwbHandle,\r | |
1216 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
1217 | OldFwbInterface,\r | |
1218 | &FvbDevice->FwVolBlockInstance\r | |
1219 | );\r | |
1220 | ASSERT_EFI_ERROR (Status);\r | |
1221 | } else {\r | |
1222 | //\r | |
1223 | // There was a FVB protocol on an End Device Path node\r | |
1224 | //\r | |
1225 | ASSERT (FALSE);\r | |
1226 | }\r | |
1227 | \r | |
1228 | MarkMemoryRangeForRuntimeAccess (BaseAddress, Length);\r | |
1229 | \r | |
1230 | //\r | |
1231 | // Set several PCD values to point to flash\r | |
1232 | //\r | |
1233 | PcdSet64 (\r | |
1234 | PcdFlashNvStorageVariableBase64,\r | |
1235 | (UINTN) PcdGet32 (PcdOvmfFlashNvStorageVariableBase)\r | |
1236 | );\r | |
1237 | PcdSet32 (\r | |
1238 | PcdFlashNvStorageFtwWorkingBase,\r | |
1239 | PcdGet32 (PcdOvmfFlashNvStorageFtwWorkingBase)\r | |
1240 | );\r | |
1241 | PcdSet32 (\r | |
1242 | PcdFlashNvStorageFtwSpareBase,\r | |
1243 | PcdGet32 (PcdOvmfFlashNvStorageFtwSpareBase)\r | |
1244 | );\r | |
1245 | \r | |
1246 | FwhInstance = (EFI_FW_VOL_INSTANCE *)\r | |
1247 | (\r | |
1248 | (UINTN) ((UINT8 *) FwhInstance) + FwVolHeader->HeaderLength +\r | |
1249 | (sizeof (EFI_FW_VOL_INSTANCE) - sizeof (EFI_FIRMWARE_VOLUME_HEADER))\r | |
1250 | );\r | |
1251 | \r | |
1252 | VirtualAddressChangeEvent = NULL;\r | |
1253 | Status = gBS->CreateEventEx (\r | |
1254 | EVT_NOTIFY_SIGNAL,\r | |
1255 | TPL_NOTIFY,\r | |
1256 | FvbVirtualddressChangeEvent,\r | |
1257 | NULL,\r | |
1258 | &gEfiEventVirtualAddressChangeGuid,\r | |
1259 | &VirtualAddressChangeEvent\r | |
1260 | );\r | |
1261 | ASSERT_EFI_ERROR (Status);\r | |
1262 | \r | |
9d35ac26 | 1263 | PcdSetBool (PcdOvmfFlashVariablesEnable, TRUE);\r |
a4ce9ffd JJ |
1264 | return EFI_SUCCESS;\r |
1265 | }\r |