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d2a16030 JY |
1 | /** @file\r |
2 | DXE capsule report related function.\r | |
3 | \r | |
4 | Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r | |
5 | 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 | **/\r | |
14 | \r | |
15 | #include <PiDxe.h>\r | |
16 | #include <Protocol/FirmwareManagement.h>\r | |
17 | #include <Protocol/VariableLock.h>\r | |
18 | #include <Guid/CapsuleReport.h>\r | |
19 | #include <Guid/FmpCapsule.h>\r | |
20 | #include <Guid/CapsuleVendor.h>\r | |
21 | \r | |
22 | #include <Library/BaseLib.h>\r | |
23 | #include <Library/DebugLib.h>\r | |
24 | #include <Library/BaseMemoryLib.h>\r | |
25 | #include <Library/UefiBootServicesTableLib.h>\r | |
26 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
27 | #include <Library/MemoryAllocationLib.h>\r | |
28 | #include <Library/UefiLib.h>\r | |
29 | #include <Library/PcdLib.h>\r | |
30 | #include <Library/HobLib.h>\r | |
31 | #include <Library/PrintLib.h>\r | |
32 | #include <Library/ReportStatusCodeLib.h>\r | |
8f6db161 | 33 | #include <Library/DevicePathLib.h>\r |
d2a16030 JY |
34 | #include <Library/CapsuleLib.h>\r |
35 | \r | |
36 | #include <IndustryStandard/WindowsUxCapsule.h>\r | |
37 | \r | |
38 | typedef struct {\r | |
39 | EFI_CAPSULE_RESULT_VARIABLE_HEADER CapsuleResultHeader;\r | |
40 | EFI_CAPSULE_RESULT_VARIABLE_FMP CapsuleResultFmp;\r | |
41 | } CAPSULE_RESULT_VARIABLE_CACHE;\r | |
42 | \r | |
43 | #define CAPSULE_RESULT_VARIABLE_CACHE_COUNT 0x10\r | |
44 | \r | |
45 | CAPSULE_RESULT_VARIABLE_CACHE *mCapsuleResultVariableCache;\r | |
46 | UINTN mCapsuleResultVariableCacheMaxCount;\r | |
47 | UINTN mCapsuleResultVariableCacheCount;\r | |
48 | \r | |
49 | /**\r | |
50 | Get current capsule last variable index.\r | |
51 | \r | |
52 | @return Current capsule last variable index.\r | |
53 | @retval -1 No current capsule last variable.\r | |
54 | **/\r | |
55 | INTN\r | |
56 | GetCurrentCapsuleLastIndex (\r | |
57 | VOID\r | |
58 | )\r | |
59 | {\r | |
60 | UINTN Size;\r | |
61 | CHAR16 CapsuleLastStr[sizeof("Capsule####")];\r | |
62 | EFI_STATUS Status;\r | |
63 | UINT16 CurrentIndex;\r | |
64 | \r | |
65 | Size = sizeof(L"Capsule####") - sizeof(CHAR16); // no zero terminator\r | |
66 | Status = gRT->GetVariable(\r | |
67 | L"CapsuleLast",\r | |
68 | &gEfiCapsuleReportGuid,\r | |
69 | NULL,\r | |
70 | &Size,\r | |
71 | CapsuleLastStr\r | |
72 | );\r | |
73 | if (EFI_ERROR(Status)) {\r | |
74 | return -1;\r | |
75 | }\r | |
76 | CurrentIndex = (UINT16)StrHexToUintn(&CapsuleLastStr[sizeof("Capsule") - 1]);\r | |
77 | return CurrentIndex;\r | |
78 | }\r | |
79 | \r | |
80 | /**\r | |
81 | Check if this FMP capsule is processed.\r | |
82 | \r | |
83 | @param[in] CapsuleHeader The capsule image header\r | |
84 | @param[in] PayloadIndex FMP payload index\r | |
85 | @param[in] ImageHeader FMP image header\r | |
86 | \r | |
87 | @retval TRUE This FMP capsule is processed.\r | |
88 | @retval FALSE This FMP capsule is not processed.\r | |
89 | **/\r | |
90 | BOOLEAN\r | |
91 | IsFmpCapsuleProcessed (\r | |
92 | IN EFI_CAPSULE_HEADER *CapsuleHeader,\r | |
93 | IN UINTN PayloadIndex,\r | |
94 | IN EFI_FIRMWARE_MANAGEMENT_CAPSULE_IMAGE_HEADER *ImageHeader\r | |
95 | )\r | |
96 | {\r | |
97 | UINTN Index;\r | |
98 | EFI_CAPSULE_RESULT_VARIABLE_HEADER *CapsuleResult;\r | |
99 | EFI_CAPSULE_RESULT_VARIABLE_FMP *CapsuleResultFmp;\r | |
100 | \r | |
101 | for (Index = 0; Index < mCapsuleResultVariableCacheCount; Index++) {\r | |
102 | //\r | |
103 | // Check\r | |
104 | //\r | |
105 | CapsuleResult = &mCapsuleResultVariableCache[Index].CapsuleResultHeader;\r | |
106 | if (CapsuleResult->VariableTotalSize >= sizeof(EFI_CAPSULE_RESULT_VARIABLE_HEADER)) {\r | |
107 | if (CompareGuid(&CapsuleResult->CapsuleGuid, &gEfiFmpCapsuleGuid)) {\r | |
d8487a34 | 108 | if (CapsuleResult->VariableTotalSize >= sizeof(EFI_CAPSULE_RESULT_VARIABLE_HEADER) + sizeof(EFI_CAPSULE_RESULT_VARIABLE_FMP) + sizeof(CHAR16) * 2) {\r |
d2a16030 JY |
109 | CapsuleResultFmp = (EFI_CAPSULE_RESULT_VARIABLE_FMP *)(CapsuleResult + 1);\r |
110 | if (CompareGuid(&CapsuleResultFmp->UpdateImageTypeId, &ImageHeader->UpdateImageTypeId) &&\r | |
111 | (CapsuleResultFmp->UpdateImageIndex == ImageHeader->UpdateImageIndex) &&\r | |
112 | (CapsuleResultFmp->PayloadIndex == PayloadIndex) ) {\r | |
113 | return TRUE;\r | |
114 | }\r | |
115 | }\r | |
116 | }\r | |
117 | }\r | |
118 | }\r | |
119 | \r | |
120 | return FALSE;\r | |
121 | }\r | |
122 | \r | |
123 | /**\r | |
124 | Write a new capsule status variable cache.\r | |
125 | \r | |
126 | @param[in] CapsuleResult The capsule status variable\r | |
127 | @param[in] CapsuleResultSize The size of the capsule stauts variable in bytes\r | |
128 | \r | |
129 | @retval EFI_SUCCESS The capsule status variable is cached.\r | |
130 | @retval EFI_OUT_OF_RESOURCES No resource to cache the capsule status variable.\r | |
131 | **/\r | |
132 | EFI_STATUS\r | |
133 | WriteNewCapsuleResultVariableCache (\r | |
134 | IN VOID *CapsuleResult,\r | |
135 | IN UINTN CapsuleResultSize\r | |
136 | )\r | |
137 | {\r | |
138 | if (CapsuleResultSize > sizeof(CAPSULE_RESULT_VARIABLE_CACHE)) {\r | |
139 | CapsuleResultSize = sizeof(CAPSULE_RESULT_VARIABLE_CACHE);\r | |
140 | }\r | |
141 | \r | |
142 | if (mCapsuleResultVariableCacheCount == mCapsuleResultVariableCacheMaxCount) {\r | |
143 | mCapsuleResultVariableCache = ReallocatePool(\r | |
144 | mCapsuleResultVariableCacheMaxCount * sizeof(CAPSULE_RESULT_VARIABLE_CACHE),\r | |
145 | (mCapsuleResultVariableCacheMaxCount + CAPSULE_RESULT_VARIABLE_CACHE_COUNT) * sizeof(CAPSULE_RESULT_VARIABLE_CACHE),\r | |
146 | mCapsuleResultVariableCache\r | |
147 | );\r | |
148 | if (mCapsuleResultVariableCache == NULL) {\r | |
149 | return EFI_OUT_OF_RESOURCES;\r | |
150 | }\r | |
151 | mCapsuleResultVariableCacheMaxCount += CAPSULE_RESULT_VARIABLE_CACHE_COUNT;\r | |
152 | }\r | |
153 | \r | |
154 | ASSERT(mCapsuleResultVariableCacheCount < mCapsuleResultVariableCacheMaxCount);\r | |
155 | ASSERT(mCapsuleResultVariableCache != NULL);\r | |
156 | CopyMem(\r | |
157 | &mCapsuleResultVariableCache[mCapsuleResultVariableCacheCount],\r | |
158 | CapsuleResult,\r | |
159 | CapsuleResultSize\r | |
160 | );\r | |
161 | mCapsuleResultVariableCacheCount++;\r | |
162 | \r | |
163 | return EFI_SUCCESS;\r | |
164 | }\r | |
165 | \r | |
166 | /**\r | |
167 | Get a new capsule status variable index.\r | |
168 | \r | |
169 | @return A new capsule status variable index.\r | |
777034ce | 170 | @retval 0 No new capsule status variable index. Rolling over.\r |
d2a16030 JY |
171 | **/\r |
172 | INTN\r | |
173 | GetNewCapsuleResultIndex (\r | |
174 | VOID\r | |
175 | )\r | |
176 | {\r | |
177 | INTN CurrentIndex;\r | |
178 | \r | |
179 | CurrentIndex = GetCurrentCapsuleLastIndex();\r | |
180 | if (CurrentIndex >= PcdGet16(PcdCapsuleMax)) {\r | |
777034ce JY |
181 | DEBUG((DEBUG_INFO, " CapsuleResult variable Rolling Over!\n"));\r |
182 | return 0;\r | |
d2a16030 JY |
183 | }\r |
184 | \r | |
185 | return CurrentIndex + 1;\r | |
186 | }\r | |
187 | \r | |
188 | /**\r | |
189 | Write a new capsule status variable.\r | |
190 | \r | |
191 | @param[in] CapsuleResult The capsule status variable\r | |
192 | @param[in] CapsuleResultSize The size of the capsule stauts variable in bytes\r | |
193 | \r | |
194 | @retval EFI_SUCCESS The capsule status variable is recorded.\r | |
195 | @retval EFI_OUT_OF_RESOURCES No resource to record the capsule status variable.\r | |
196 | **/\r | |
197 | EFI_STATUS\r | |
198 | WriteNewCapsuleResultVariable (\r | |
199 | IN VOID *CapsuleResult,\r | |
200 | IN UINTN CapsuleResultSize\r | |
201 | )\r | |
202 | {\r | |
203 | INTN CapsuleResultIndex;\r | |
204 | CHAR16 CapsuleResultStr[sizeof("Capsule####")];\r | |
205 | UINTN Size;\r | |
206 | EFI_STATUS Status;\r | |
207 | \r | |
208 | CapsuleResultIndex = GetNewCapsuleResultIndex();\r | |
209 | DEBUG((DEBUG_INFO, "New CapsuleResultIndex - 0x%x\n", CapsuleResultIndex));\r | |
777034ce | 210 | \r |
d2a16030 JY |
211 | UnicodeSPrint(\r |
212 | CapsuleResultStr,\r | |
213 | sizeof(CapsuleResultStr),\r | |
214 | L"Capsule%04x",\r | |
215 | CapsuleResultIndex\r | |
216 | );\r | |
217 | \r | |
218 | Status = gRT->SetVariable(\r | |
219 | CapsuleResultStr,\r | |
220 | &gEfiCapsuleReportGuid,\r | |
221 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
222 | CapsuleResultSize,\r | |
223 | CapsuleResult\r | |
224 | );\r | |
225 | if (!EFI_ERROR(Status)) {\r | |
226 | Size = sizeof(L"Capsule####") - sizeof(CHAR16); // no zero terminator\r | |
227 | DEBUG((DEBUG_INFO, "Set CapsuleLast - %s\n", CapsuleResultStr));\r | |
228 | Status = gRT->SetVariable(\r | |
229 | L"CapsuleLast",\r | |
230 | &gEfiCapsuleReportGuid,\r | |
231 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
232 | Size,\r | |
233 | CapsuleResultStr\r | |
234 | );\r | |
235 | }\r | |
236 | \r | |
237 | return Status;\r | |
238 | }\r | |
239 | \r | |
240 | /**\r | |
241 | Record capsule status variable and to local cache.\r | |
242 | \r | |
243 | @param[in] CapsuleHeader The capsule image header\r | |
244 | @param[in] CapsuleStatus The capsule process stauts\r | |
245 | \r | |
246 | @retval EFI_SUCCESS The capsule status variable is recorded.\r | |
247 | @retval EFI_OUT_OF_RESOURCES No resource to record the capsule status variable.\r | |
248 | **/\r | |
249 | EFI_STATUS\r | |
250 | RecordCapsuleStatusVariable (\r | |
251 | IN EFI_CAPSULE_HEADER *CapsuleHeader,\r | |
252 | IN EFI_STATUS CapsuleStatus\r | |
253 | )\r | |
254 | {\r | |
255 | EFI_CAPSULE_RESULT_VARIABLE_HEADER CapsuleResultVariable;\r | |
256 | EFI_STATUS Status;\r | |
257 | \r | |
258 | CapsuleResultVariable.VariableTotalSize = sizeof(CapsuleResultVariable);\r | |
d8487a34 | 259 | CapsuleResultVariable.Reserved = 0;\r |
d2a16030 JY |
260 | CopyGuid (&CapsuleResultVariable.CapsuleGuid, &CapsuleHeader->CapsuleGuid);\r |
261 | ZeroMem(&CapsuleResultVariable.CapsuleProcessed, sizeof(CapsuleResultVariable.CapsuleProcessed));\r | |
262 | gRT->GetTime(&CapsuleResultVariable.CapsuleProcessed, NULL);\r | |
263 | CapsuleResultVariable.CapsuleStatus = CapsuleStatus;\r | |
264 | \r | |
265 | //\r | |
266 | // Save Local Cache\r | |
267 | //\r | |
268 | Status = WriteNewCapsuleResultVariableCache(&CapsuleResultVariable, sizeof(CapsuleResultVariable));\r | |
269 | \r | |
270 | if ((CapsuleHeader->Flags & CAPSULE_FLAGS_PERSIST_ACROSS_RESET) != 0) {\r | |
271 | Status = WriteNewCapsuleResultVariable(&CapsuleResultVariable, sizeof(CapsuleResultVariable));\r | |
272 | }\r | |
273 | return Status;\r | |
274 | }\r | |
275 | \r | |
276 | /**\r | |
277 | Record FMP capsule status variable and to local cache.\r | |
278 | \r | |
279 | @param[in] CapsuleHeader The capsule image header\r | |
280 | @param[in] CapsuleStatus The capsule process stauts\r | |
281 | @param[in] PayloadIndex FMP payload index\r | |
282 | @param[in] ImageHeader FMP image header\r | |
8f6db161 | 283 | @param[in] FmpDevicePath DevicePath associated with the FMP producer\r |
d2a16030 JY |
284 | \r |
285 | @retval EFI_SUCCESS The capsule status variable is recorded.\r | |
286 | @retval EFI_OUT_OF_RESOURCES No resource to record the capsule status variable.\r | |
287 | **/\r | |
288 | EFI_STATUS\r | |
289 | RecordFmpCapsuleStatusVariable (\r | |
290 | IN EFI_CAPSULE_HEADER *CapsuleHeader,\r | |
291 | IN EFI_STATUS CapsuleStatus,\r | |
292 | IN UINTN PayloadIndex,\r | |
8f6db161 JY |
293 | IN EFI_FIRMWARE_MANAGEMENT_CAPSULE_IMAGE_HEADER *ImageHeader,\r |
294 | IN EFI_DEVICE_PATH_PROTOCOL *FmpDevicePath OPTIONAL\r | |
d2a16030 JY |
295 | )\r |
296 | {\r | |
d2a16030 JY |
297 | EFI_CAPSULE_RESULT_VARIABLE_HEADER *CapsuleResultVariableHeader;\r |
298 | EFI_CAPSULE_RESULT_VARIABLE_FMP *CapsuleResultVariableFmp;\r | |
299 | EFI_STATUS Status;\r | |
b857bf48 | 300 | UINT8 *CapsuleResultVariable;\r |
8f6db161 JY |
301 | UINTN CapsuleResultVariableSize;\r |
302 | CHAR16 *DevicePathStr;\r | |
303 | UINTN DevicePathStrSize;\r | |
d2a16030 | 304 | \r |
8f6db161 JY |
305 | DevicePathStr = NULL;\r |
306 | if (FmpDevicePath != NULL) {\r | |
307 | DevicePathStr = ConvertDevicePathToText (FmpDevicePath, FALSE, FALSE);\r | |
308 | }\r | |
309 | if (DevicePathStr != NULL) {\r | |
310 | DevicePathStrSize = StrSize(DevicePathStr);\r | |
311 | } else {\r | |
312 | DevicePathStrSize = sizeof(CHAR16);\r | |
313 | }\r | |
d8487a34 | 314 | //\r |
8f6db161 | 315 | // Allocate zero CHAR16 for CapsuleFileName.\r |
d8487a34 | 316 | //\r |
8f6db161 | 317 | CapsuleResultVariableSize = sizeof(EFI_CAPSULE_RESULT_VARIABLE_HEADER) + sizeof(EFI_CAPSULE_RESULT_VARIABLE_FMP) + sizeof(CHAR16) + DevicePathStrSize;\r |
d8487a34 | 318 | CapsuleResultVariable = AllocateZeroPool (CapsuleResultVariableSize);\r |
b857bf48 DB |
319 | if (CapsuleResultVariable == NULL) {\r |
320 | return EFI_OUT_OF_RESOURCES;\r | |
321 | }\r | |
322 | CapsuleResultVariableHeader = (VOID *)CapsuleResultVariable;\r | |
8f6db161 | 323 | CapsuleResultVariableHeader->VariableTotalSize = (UINT32)CapsuleResultVariableSize;\r |
d8487a34 | 324 | CapsuleResultVariableHeader->Reserved = 0;\r |
d2a16030 JY |
325 | CopyGuid(&CapsuleResultVariableHeader->CapsuleGuid, &CapsuleHeader->CapsuleGuid);\r |
326 | ZeroMem(&CapsuleResultVariableHeader->CapsuleProcessed, sizeof(CapsuleResultVariableHeader->CapsuleProcessed));\r | |
327 | gRT->GetTime(&CapsuleResultVariableHeader->CapsuleProcessed, NULL);\r | |
328 | CapsuleResultVariableHeader->CapsuleStatus = CapsuleStatus;\r | |
329 | \r | |
b857bf48 | 330 | CapsuleResultVariableFmp = (VOID *)(CapsuleResultVariable + sizeof(EFI_CAPSULE_RESULT_VARIABLE_HEADER));\r |
d2a16030 JY |
331 | CapsuleResultVariableFmp->Version = 0x1;\r |
332 | CapsuleResultVariableFmp->PayloadIndex = (UINT8)PayloadIndex;\r | |
333 | CapsuleResultVariableFmp->UpdateImageIndex = ImageHeader->UpdateImageIndex;\r | |
334 | CopyGuid (&CapsuleResultVariableFmp->UpdateImageTypeId, &ImageHeader->UpdateImageTypeId);\r | |
8f6db161 JY |
335 | if (DevicePathStr != NULL) {\r |
336 | CopyMem ((UINT8 *)CapsuleResultVariableFmp + sizeof(EFI_CAPSULE_RESULT_VARIABLE_FMP) + sizeof(CHAR16), DevicePathStr, DevicePathStrSize);\r | |
337 | FreePool (DevicePathStr);\r | |
338 | DevicePathStr = NULL;\r | |
339 | }\r | |
d2a16030 JY |
340 | \r |
341 | //\r | |
342 | // Save Local Cache\r | |
343 | //\r | |
b857bf48 | 344 | Status = WriteNewCapsuleResultVariableCache(CapsuleResultVariable, CapsuleResultVariableSize);\r |
d2a16030 JY |
345 | \r |
346 | if ((CapsuleHeader->Flags & CAPSULE_FLAGS_PERSIST_ACROSS_RESET) != 0) {\r | |
b857bf48 | 347 | Status = WriteNewCapsuleResultVariable(CapsuleResultVariable, CapsuleResultVariableSize);\r |
d2a16030 | 348 | }\r |
b857bf48 | 349 | FreePool (CapsuleResultVariable);\r |
d2a16030 JY |
350 | return Status;\r |
351 | }\r | |
352 | \r | |
353 | /**\r | |
354 | Initialize CapsuleMax variables.\r | |
355 | **/\r | |
356 | VOID\r | |
357 | InitCapsuleMaxVariable (\r | |
358 | VOID\r | |
359 | )\r | |
360 | {\r | |
361 | EFI_STATUS Status;\r | |
362 | UINTN Size;\r | |
363 | CHAR16 CapsuleMaxStr[sizeof("Capsule####")];\r | |
364 | EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock;\r | |
365 | \r | |
366 | UnicodeSPrint(\r | |
367 | CapsuleMaxStr,\r | |
368 | sizeof(CapsuleMaxStr),\r | |
369 | L"Capsule%04x",\r | |
370 | PcdGet16(PcdCapsuleMax)\r | |
371 | );\r | |
372 | \r | |
373 | Size = sizeof(L"Capsule####") - sizeof(CHAR16); // no zero terminator\r | |
374 | Status = gRT->SetVariable(\r | |
375 | L"CapsuleMax",\r | |
376 | &gEfiCapsuleReportGuid,\r | |
377 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
378 | Size,\r | |
379 | CapsuleMaxStr\r | |
380 | );\r | |
381 | if (!EFI_ERROR(Status)) {\r | |
382 | // Lock it per UEFI spec.\r | |
383 | Status = gBS->LocateProtocol(&gEdkiiVariableLockProtocolGuid, NULL, (VOID **)&VariableLock);\r | |
384 | if (!EFI_ERROR(Status)) {\r | |
385 | Status = VariableLock->RequestToLock(VariableLock, L"CapsuleMax", &gEfiCapsuleReportGuid);\r | |
386 | ASSERT_EFI_ERROR(Status);\r | |
387 | }\r | |
388 | }\r | |
389 | }\r | |
390 | \r | |
391 | /**\r | |
392 | Initialize CapsuleLast variables.\r | |
393 | **/\r | |
394 | VOID\r | |
395 | InitCapsuleLastVariable (\r | |
396 | VOID\r | |
397 | )\r | |
398 | {\r | |
399 | EFI_STATUS Status;\r | |
400 | EFI_BOOT_MODE BootMode;\r | |
401 | EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock;\r | |
402 | VOID *CapsuleResult;\r | |
403 | UINTN Size;\r | |
404 | CHAR16 CapsuleLastStr[sizeof("Capsule####")];\r | |
405 | \r | |
406 | BootMode = GetBootModeHob();\r | |
407 | if (BootMode == BOOT_ON_FLASH_UPDATE) {\r | |
408 | Status = gRT->SetVariable(\r | |
409 | L"CapsuleLast",\r | |
410 | &gEfiCapsuleReportGuid,\r | |
411 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
412 | 0,\r | |
413 | NULL\r | |
414 | );\r | |
415 | // Do not lock it because it will be updated later.\r | |
416 | } else {\r | |
417 | //\r | |
418 | // Check if OS/APP cleared L"Capsule####"\r | |
419 | //\r | |
420 | ZeroMem(CapsuleLastStr, sizeof(CapsuleLastStr));\r | |
421 | Size = sizeof(L"Capsule####") - sizeof(CHAR16); // no zero terminator\r | |
422 | Status = gRT->GetVariable(\r | |
423 | L"CapsuleLast",\r | |
424 | &gEfiCapsuleReportGuid,\r | |
425 | NULL,\r | |
426 | &Size,\r | |
427 | CapsuleLastStr\r | |
428 | );\r | |
429 | if (!EFI_ERROR(Status)) {\r | |
430 | //\r | |
431 | // L"CapsuleLast" is got, check if data is there.\r | |
432 | //\r | |
433 | Status = GetVariable2 (\r | |
434 | CapsuleLastStr,\r | |
435 | &gEfiCapsuleReportGuid,\r | |
436 | (VOID **) &CapsuleResult,\r | |
437 | NULL\r | |
438 | );\r | |
439 | if (EFI_ERROR(Status)) {\r | |
440 | //\r | |
441 | // If no data, delete L"CapsuleLast"\r | |
442 | //\r | |
443 | Status = gRT->SetVariable(\r | |
444 | L"CapsuleLast",\r | |
445 | &gEfiCapsuleReportGuid,\r | |
446 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
447 | 0,\r | |
448 | NULL\r | |
449 | );\r | |
450 | }\r | |
451 | }\r | |
452 | \r | |
453 | // Lock it in normal boot path per UEFI spec.\r | |
454 | Status = gBS->LocateProtocol(&gEdkiiVariableLockProtocolGuid, NULL, (VOID **)&VariableLock);\r | |
455 | if (!EFI_ERROR(Status)) {\r | |
456 | Status = VariableLock->RequestToLock(VariableLock, L"CapsuleLast", &gEfiCapsuleReportGuid);\r | |
457 | ASSERT_EFI_ERROR(Status);\r | |
458 | }\r | |
459 | }\r | |
460 | }\r | |
461 | \r | |
462 | /**\r | |
463 | Initialize capsule update variables.\r | |
464 | **/\r | |
465 | VOID\r | |
466 | InitCapsuleUpdateVariable (\r | |
467 | VOID\r | |
468 | )\r | |
469 | {\r | |
470 | EFI_STATUS Status;\r | |
471 | UINTN Index;\r | |
472 | CHAR16 CapsuleVarName[30];\r | |
473 | CHAR16 *TempVarName;\r | |
474 | \r | |
475 | //\r | |
476 | // Clear all the capsule variables CapsuleUpdateData, CapsuleUpdateData1, CapsuleUpdateData2...\r | |
477 | // as early as possible which will avoid the next time boot after the capsule update\r | |
478 | // will still into the capsule loop\r | |
479 | //\r | |
480 | StrCpyS (CapsuleVarName, sizeof(CapsuleVarName)/sizeof(CapsuleVarName[0]), EFI_CAPSULE_VARIABLE_NAME);\r | |
481 | TempVarName = CapsuleVarName + StrLen (CapsuleVarName);\r | |
482 | Index = 0;\r | |
483 | while (TRUE) {\r | |
484 | if (Index > 0) {\r | |
485 | UnicodeValueToString (TempVarName, 0, Index, 0);\r | |
486 | }\r | |
487 | Status = gRT->SetVariable (\r | |
488 | CapsuleVarName,\r | |
489 | &gEfiCapsuleVendorGuid,\r | |
490 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r | |
491 | 0,\r | |
492 | (VOID *)NULL\r | |
493 | );\r | |
494 | if (EFI_ERROR (Status)) {\r | |
495 | //\r | |
496 | // There is no capsule variables, quit\r | |
497 | //\r | |
498 | break;\r | |
499 | }\r | |
500 | Index++;\r | |
501 | }\r | |
502 | }\r | |
503 | \r | |
504 | /**\r | |
505 | Initialize capsule related variables.\r | |
506 | **/\r | |
507 | VOID\r | |
508 | InitCapsuleVariable (\r | |
509 | VOID\r | |
510 | )\r | |
511 | {\r | |
512 | InitCapsuleUpdateVariable();\r | |
513 | InitCapsuleMaxVariable();\r | |
514 | InitCapsuleLastVariable();\r | |
515 | //\r | |
516 | // No need to clear L"Capsule####", because OS/APP should refer L"CapsuleLast"\r | |
517 | // to check status and delete them.\r | |
518 | //\r | |
519 | }\r |