projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 5c08e117 | 1 | /** @file\r |
| 2 | Misc BDS library function\r | |
| 3 | \r | |
| 5f595f14 | 4 | Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>\r |
| 180a5a35 | 5 | This program and the accompanying materials\r |
| 5c08e117 | 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 "InternalBdsLib.h"\r | |
| 16 | \r | |
| 17 | \r | |
| 18 | #define MAX_STRING_LEN 200\r | |
| 19 | \r | |
| 20 | BOOLEAN mFeaturerSwitch = TRUE;\r | |
| 21 | BOOLEAN mResetRequired = FALSE;\r | |
| 22 | \r | |
| 23 | extern UINT16 gPlatformBootTimeOutDefault;\r | |
| 24 | \r | |
| 5c08e117 | 25 | /**\r |
| 26 | The function will go through the driver option link list, load and start\r | |
| 27 | every driver the driver option device path point to.\r | |
| 28 | \r | |
| 29 | @param BdsDriverLists The header of the current driver option link list\r | |
| 30 | \r | |
| 31 | **/\r | |
| 32 | VOID\r | |
| 33 | EFIAPI\r | |
| 34 | BdsLibLoadDrivers (\r | |
| 35 | IN LIST_ENTRY *BdsDriverLists\r | |
| 36 | )\r | |
| 37 | {\r | |
| 38 | EFI_STATUS Status;\r | |
| 39 | LIST_ENTRY *Link;\r | |
| 40 | BDS_COMMON_OPTION *Option;\r | |
| 41 | EFI_HANDLE ImageHandle;\r | |
| 42 | EFI_LOADED_IMAGE_PROTOCOL *ImageInfo;\r | |
| 43 | UINTN ExitDataSize;\r | |
| 44 | CHAR16 *ExitData;\r | |
| 45 | BOOLEAN ReconnectAll;\r | |
| 46 | \r | |
| 47 | ReconnectAll = FALSE;\r | |
| 48 | \r | |
| 49 | //\r | |
| 50 | // Process the driver option\r | |
| 51 | //\r | |
| 52 | for (Link = BdsDriverLists->ForwardLink; Link != BdsDriverLists; Link = Link->ForwardLink) {\r | |
| 53 | Option = CR (Link, BDS_COMMON_OPTION, Link, BDS_LOAD_OPTION_SIGNATURE);\r | |
| 54 | \r | |
| 55 | //\r | |
| 56 | // If a load option is not marked as LOAD_OPTION_ACTIVE,\r | |
| 57 | // the boot manager will not automatically load the option.\r | |
| 58 | //\r | |
| 59 | if (!IS_LOAD_OPTION_TYPE (Option->Attribute, LOAD_OPTION_ACTIVE)) {\r | |
| 60 | continue;\r | |
| 61 | }\r | |
| 62 | \r | |
| 63 | //\r | |
| 64 | // If a driver load option is marked as LOAD_OPTION_FORCE_RECONNECT,\r | |
| 65 | // then all of the EFI drivers in the system will be disconnected and\r | |
| 66 | // reconnected after the last driver load option is processed.\r | |
| 67 | //\r | |
| 68 | if (IS_LOAD_OPTION_TYPE (Option->Attribute, LOAD_OPTION_FORCE_RECONNECT)) {\r | |
| 69 | ReconnectAll = TRUE;\r | |
| 70 | }\r | |
| 71 | \r | |
| 72 | //\r | |
| 73 | // Make sure the driver path is connected.\r | |
| 74 | //\r | |
| 75 | BdsLibConnectDevicePath (Option->DevicePath);\r | |
| 76 | \r | |
| 77 | //\r | |
| 78 | // Load and start the image that Driver#### describes\r | |
| 79 | //\r | |
| 80 | Status = gBS->LoadImage (\r | |
| 81 | FALSE,\r | |
| fefefa4c | 82 | gImageHandle,\r |
| 5c08e117 | 83 | Option->DevicePath,\r |
| 84 | NULL,\r | |
| 85 | 0,\r | |
| 86 | &ImageHandle\r | |
| 87 | );\r | |
| 88 | \r | |
| 89 | if (!EFI_ERROR (Status)) {\r | |
| 90 | gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **) &ImageInfo);\r | |
| 91 | \r | |
| 92 | //\r | |
| 93 | // Verify whether this image is a driver, if not,\r | |
| 94 | // exit it and continue to parse next load option\r | |
| 95 | //\r | |
| 96 | if (ImageInfo->ImageCodeType != EfiBootServicesCode && ImageInfo->ImageCodeType != EfiRuntimeServicesCode) {\r | |
| 97 | gBS->Exit (ImageHandle, EFI_INVALID_PARAMETER, 0, NULL);\r | |
| 98 | continue;\r | |
| 99 | }\r | |
| 100 | \r | |
| 101 | if (Option->LoadOptionsSize != 0) {\r | |
| 102 | ImageInfo->LoadOptionsSize = Option->LoadOptionsSize;\r | |
| 103 | ImageInfo->LoadOptions = Option->LoadOptions;\r | |
| 104 | }\r | |
| 105 | //\r | |
| 106 | // Before calling the image, enable the Watchdog Timer for\r | |
| 107 | // the 5 Minute period\r | |
| 108 | //\r | |
| 109 | gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL);\r | |
| 110 | \r | |
| 111 | Status = gBS->StartImage (ImageHandle, &ExitDataSize, &ExitData);\r | |
| 112 | DEBUG ((DEBUG_INFO | DEBUG_LOAD, "Driver Return Status = %r\n", Status));\r | |
| 113 | \r | |
| 114 | //\r | |
| 115 | // Clear the Watchdog Timer after the image returns\r | |
| 116 | //\r | |
| 117 | gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL);\r | |
| 118 | }\r | |
| 119 | }\r | |
| 120 | \r | |
| 121 | //\r | |
| 122 | // Process the LOAD_OPTION_FORCE_RECONNECT driver option\r | |
| 123 | //\r | |
| 124 | if (ReconnectAll) {\r | |
| 125 | BdsLibDisconnectAllEfi ();\r | |
| 126 | BdsLibConnectAll ();\r | |
| 127 | }\r | |
| 128 | \r | |
| 129 | }\r | |
| 130 | \r | |
| 131 | /**\r | |
| 132 | Get the Option Number that does not used.\r | |
| 133 | Try to locate the specific option variable one by one utile find a free number.\r | |
| 134 | \r | |
| 135 | @param VariableName Indicate if the boot#### or driver#### option\r | |
| 136 | \r | |
| 137 | @return The Minimal Free Option Number\r | |
| 138 | \r | |
| 139 | **/\r | |
| 140 | UINT16\r | |
| 141 | BdsLibGetFreeOptionNumber (\r | |
| 142 | IN CHAR16 *VariableName\r | |
| 143 | )\r | |
| 144 | {\r | |
| 145 | UINTN Index;\r | |
| 146 | CHAR16 StrTemp[10];\r | |
| 147 | UINT16 *OptionBuffer;\r | |
| 148 | UINTN OptionSize;\r | |
| 149 | \r | |
| 150 | //\r | |
| 151 | // Try to find the minimum free number from 0, 1, 2, 3....\r | |
| 152 | //\r | |
| 153 | Index = 0;\r | |
| 154 | do {\r | |
| 155 | if (*VariableName == 'B') {\r | |
| 156 | UnicodeSPrint (StrTemp, sizeof (StrTemp), L"Boot%04x", Index);\r | |
| 157 | } else {\r | |
| 158 | UnicodeSPrint (StrTemp, sizeof (StrTemp), L"Driver%04x", Index);\r | |
| 159 | }\r | |
| 160 | //\r | |
| 161 | // try if the option number is used\r | |
| 162 | //\r | |
| 163 | OptionBuffer = BdsLibGetVariableAndSize (\r | |
| 164 | StrTemp,\r | |
| 165 | &gEfiGlobalVariableGuid,\r | |
| 166 | &OptionSize\r | |
| 167 | );\r | |
| 168 | if (OptionBuffer == NULL) {\r | |
| 169 | break;\r | |
| 170 | }\r | |
| 171 | Index++;\r | |
| 172 | } while (TRUE);\r | |
| 173 | \r | |
| 174 | return ((UINT16) Index);\r | |
| 175 | }\r | |
| 176 | \r | |
| 177 | \r | |
| 178 | /**\r | |
| 179 | This function will register the new boot#### or driver#### option base on\r | |
| 180 | the VariableName. The new registered boot#### or driver#### will be linked\r | |
| 181 | to BdsOptionList and also update to the VariableName. After the boot#### or\r | |
| 182 | driver#### updated, the BootOrder or DriverOrder will also be updated.\r | |
| 183 | \r | |
| 184 | @param BdsOptionList The header of the boot#### or driver#### link list\r | |
| 185 | @param DevicePath The device path which the boot#### or driver####\r | |
| 186 | option present\r | |
| 187 | @param String The description of the boot#### or driver####\r | |
| 188 | @param VariableName Indicate if the boot#### or driver#### option\r | |
| 189 | \r | |
| 190 | @retval EFI_SUCCESS The boot#### or driver#### have been success\r | |
| 191 | registered\r | |
| 192 | @retval EFI_STATUS Return the status of gRT->SetVariable ().\r | |
| 193 | \r | |
| 194 | **/\r | |
| 195 | EFI_STATUS\r | |
| 196 | EFIAPI\r | |
| 197 | BdsLibRegisterNewOption (\r | |
| 198 | IN LIST_ENTRY *BdsOptionList,\r | |
| 199 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
| 200 | IN CHAR16 *String,\r | |
| 201 | IN CHAR16 *VariableName\r | |
| 202 | )\r | |
| 203 | {\r | |
| 204 | EFI_STATUS Status;\r | |
| 205 | UINTN Index;\r | |
| 206 | UINT16 RegisterOptionNumber;\r | |
| 207 | UINT16 *TempOptionPtr;\r | |
| 208 | UINTN TempOptionSize;\r | |
| 209 | UINT16 *OptionOrderPtr;\r | |
| 210 | VOID *OptionPtr;\r | |
| 211 | UINTN OptionSize;\r | |
| 212 | UINT8 *TempPtr;\r | |
| 213 | EFI_DEVICE_PATH_PROTOCOL *OptionDevicePath;\r | |
| 214 | CHAR16 *Description;\r | |
| 215 | CHAR16 OptionName[10];\r | |
| 216 | BOOLEAN UpdateDescription;\r | |
| 217 | UINT16 BootOrderEntry;\r | |
| 218 | UINTN OrderItemNum;\r | |
| 219 | \r | |
| 220 | \r | |
| 221 | OptionPtr = NULL;\r | |
| 222 | OptionSize = 0;\r | |
| 223 | TempPtr = NULL;\r | |
| 224 | OptionDevicePath = NULL;\r | |
| 225 | Description = NULL;\r | |
| 226 | OptionOrderPtr = NULL;\r | |
| 227 | UpdateDescription = FALSE;\r | |
| 228 | Status = EFI_SUCCESS;\r | |
| 229 | ZeroMem (OptionName, sizeof (OptionName));\r | |
| 230 | \r | |
| 231 | TempOptionSize = 0;\r | |
| 232 | TempOptionPtr = BdsLibGetVariableAndSize (\r | |
| 233 | VariableName,\r | |
| 234 | &gEfiGlobalVariableGuid,\r | |
| 235 | &TempOptionSize\r | |
| 236 | );\r | |
| 237 | //\r | |
| 238 | // Compare with current option variable if the previous option is set in global variable.\r | |
| 239 | //\r | |
| 240 | for (Index = 0; Index < TempOptionSize / sizeof (UINT16); Index++) {\r | |
| 241 | //\r | |
| 242 | // TempOptionPtr must not be NULL if we have non-zero TempOptionSize.\r | |
| 243 | //\r | |
| 244 | ASSERT (TempOptionPtr != NULL);\r | |
| 245 | \r | |
| 246 | if (*VariableName == 'B') {\r | |
| 247 | UnicodeSPrint (OptionName, sizeof (OptionName), L"Boot%04x", TempOptionPtr[Index]);\r | |
| 248 | } else {\r | |
| 249 | UnicodeSPrint (OptionName, sizeof (OptionName), L"Driver%04x", TempOptionPtr[Index]);\r | |
| 250 | }\r | |
| 251 | \r | |
| 252 | OptionPtr = BdsLibGetVariableAndSize (\r | |
| 253 | OptionName,\r | |
| 254 | &gEfiGlobalVariableGuid,\r | |
| 255 | &OptionSize\r | |
| 256 | );\r | |
| 257 | if (OptionPtr == NULL) {\r | |
| 258 | continue;\r | |
| 259 | }\r | |
| 260 | TempPtr = OptionPtr;\r | |
| 261 | TempPtr += sizeof (UINT32) + sizeof (UINT16);\r | |
| 262 | Description = (CHAR16 *) TempPtr;\r | |
| 263 | TempPtr += StrSize ((CHAR16 *) TempPtr);\r | |
| 264 | OptionDevicePath = (EFI_DEVICE_PATH_PROTOCOL *) TempPtr;\r | |
| 265 | \r | |
| 266 | //\r | |
| 267 | // Notes: the description may will change base on the GetStringToken\r | |
| 268 | //\r | |
| 269 | if (CompareMem (OptionDevicePath, DevicePath, GetDevicePathSize (OptionDevicePath)) == 0) {\r | |
| 270 | if (CompareMem (Description, String, StrSize (Description)) == 0) { \r | |
| 271 | //\r | |
| 272 | // Got the option, so just return\r | |
| 273 | //\r | |
| 274 | FreePool (OptionPtr);\r | |
| 275 | FreePool (TempOptionPtr);\r | |
| 276 | return EFI_SUCCESS;\r | |
| 277 | } else {\r | |
| 278 | //\r | |
| 279 | // Option description changed, need update.\r | |
| 280 | //\r | |
| 281 | UpdateDescription = TRUE;\r | |
| 282 | FreePool (OptionPtr);\r | |
| 283 | break;\r | |
| 284 | }\r | |
| 285 | }\r | |
| 286 | \r | |
| 287 | FreePool (OptionPtr);\r | |
| 288 | }\r | |
| 289 | \r | |
| 290 | OptionSize = sizeof (UINT32) + sizeof (UINT16) + StrSize (String);\r | |
| 291 | OptionSize += GetDevicePathSize (DevicePath);\r | |
| 292 | OptionPtr = AllocateZeroPool (OptionSize);\r | |
| 293 | ASSERT (OptionPtr != NULL);\r | |
| 294 | \r | |
| 295 | TempPtr = OptionPtr;\r | |
| 296 | *(UINT32 *) TempPtr = LOAD_OPTION_ACTIVE;\r | |
| 297 | TempPtr += sizeof (UINT32);\r | |
| 298 | *(UINT16 *) TempPtr = (UINT16) GetDevicePathSize (DevicePath);\r | |
| 299 | TempPtr += sizeof (UINT16);\r | |
| 300 | CopyMem (TempPtr, String, StrSize (String));\r | |
| 301 | TempPtr += StrSize (String);\r | |
| 302 | CopyMem (TempPtr, DevicePath, GetDevicePathSize (DevicePath));\r | |
| 303 | \r | |
| 304 | if (UpdateDescription) {\r | |
| 305 | //\r | |
| 306 | // The number in option#### to be updated. \r | |
| 307 | // In this case, we must have non-NULL TempOptionPtr.\r | |
| 308 | //\r | |
| 309 | ASSERT (TempOptionPtr != NULL);\r | |
| 310 | RegisterOptionNumber = TempOptionPtr[Index];\r | |
| 311 | } else {\r | |
| 312 | //\r | |
| 313 | // The new option#### number\r | |
| 314 | //\r | |
| 315 | RegisterOptionNumber = BdsLibGetFreeOptionNumber(VariableName);\r | |
| 316 | }\r | |
| 317 | \r | |
| 318 | if (*VariableName == 'B') {\r | |
| 319 | UnicodeSPrint (OptionName, sizeof (OptionName), L"Boot%04x", RegisterOptionNumber);\r | |
| 320 | } else {\r | |
| 321 | UnicodeSPrint (OptionName, sizeof (OptionName), L"Driver%04x", RegisterOptionNumber);\r | |
| 322 | }\r | |
| 323 | \r | |
| 324 | Status = gRT->SetVariable (\r | |
| 325 | OptionName,\r | |
| 326 | &gEfiGlobalVariableGuid,\r | |
| 327 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
| 328 | OptionSize,\r | |
| 329 | OptionPtr\r | |
| 330 | );\r | |
| 331 | //\r | |
| 332 | // Return if only need to update a changed description or fail to set option.\r | |
| 333 | //\r | |
| 334 | if (EFI_ERROR (Status) || UpdateDescription) {\r | |
| 335 | FreePool (OptionPtr);\r | |
| 336 | if (TempOptionPtr != NULL) {\r | |
| 337 | FreePool (TempOptionPtr);\r | |
| 338 | }\r | |
| 339 | return Status;\r | |
| 340 | }\r | |
| 341 | \r | |
| 342 | FreePool (OptionPtr);\r | |
| 343 | \r | |
| 344 | //\r | |
| 345 | // Update the option order variable\r | |
| 346 | //\r | |
| 347 | \r | |
| 348 | //\r | |
| 349 | // If no option order\r | |
| 350 | //\r | |
| 351 | if (TempOptionSize == 0) {\r | |
| 352 | BootOrderEntry = 0;\r | |
| 353 | Status = gRT->SetVariable (\r | |
| 354 | VariableName,\r | |
| 355 | &gEfiGlobalVariableGuid,\r | |
| 356 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
| 357 | sizeof (UINT16),\r | |
| 358 | &BootOrderEntry\r | |
| 359 | );\r | |
| 360 | if (TempOptionPtr != NULL) {\r | |
| 361 | FreePool (TempOptionPtr);\r | |
| 362 | }\r | |
| 363 | return Status;\r | |
| 364 | }\r | |
| 365 | \r | |
| 366 | //\r | |
| 367 | // TempOptionPtr must not be NULL if TempOptionSize is not zero.\r | |
| 368 | //\r | |
| 369 | ASSERT (TempOptionPtr != NULL);\r | |
| 370 | //\r | |
| 371 | // Append the new option number to the original option order\r | |
| 372 | //\r | |
| 373 | OrderItemNum = (TempOptionSize / sizeof (UINT16)) + 1 ;\r | |
| 374 | OptionOrderPtr = AllocateZeroPool ( OrderItemNum * sizeof (UINT16));\r | |
| 375 | ASSERT (OptionOrderPtr!= NULL);\r | |
| 376 | CopyMem (OptionOrderPtr, TempOptionPtr, (OrderItemNum - 1) * sizeof (UINT16));\r | |
| 377 | \r | |
| 378 | OptionOrderPtr[Index] = RegisterOptionNumber;\r | |
| 379 | \r | |
| 380 | Status = gRT->SetVariable (\r | |
| 381 | VariableName,\r | |
| 382 | &gEfiGlobalVariableGuid,\r | |
| 383 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
| 384 | OrderItemNum * sizeof (UINT16),\r | |
| 385 | OptionOrderPtr\r | |
| 386 | );\r | |
| 387 | FreePool (TempOptionPtr);\r | |
| 388 | FreePool (OptionOrderPtr);\r | |
| 389 | \r | |
| 390 | return Status;\r | |
| 391 | }\r | |
| 392 | \r | |
| b16cc38b ED |
393 | /**\r |
| 394 | Returns the size of a device path in bytes.\r | |
| 395 | \r | |
| 396 | This function returns the size, in bytes, of the device path data structure \r | |
| 397 | specified by DevicePath including the end of device path node. If DevicePath \r | |
| 398 | is NULL, then 0 is returned. If the length of the device path is bigger than\r | |
| 399 | MaxSize, also return 0 to indicate this is an invalidate device path.\r | |
| 400 | \r | |
| 401 | @param DevicePath A pointer to a device path data structure.\r | |
| 402 | @param MaxSize Max valid device path size. If big than this size, \r | |
| 403 | return error.\r | |
| 404 | \r | |
| 405 | @retval 0 An invalid device path.\r | |
| 406 | @retval Others The size of a device path in bytes.\r | |
| 407 | \r | |
| 408 | **/\r | |
| 409 | UINTN\r | |
| 410 | GetDevicePathSizeEx (\r | |
| 411 | IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
| 412 | IN UINTN MaxSize\r | |
| 413 | )\r | |
| 414 | {\r | |
| 415 | UINTN Size;\r | |
| 416 | UINTN NodeSize;\r | |
| 417 | \r | |
| 418 | if (DevicePath == NULL) {\r | |
| 419 | return 0;\r | |
| 420 | }\r | |
| 421 | \r | |
| 422 | //\r | |
| 423 | // Search for the end of the device path structure\r | |
| 424 | //\r | |
| 425 | Size = 0;\r | |
| 426 | while (!IsDevicePathEnd (DevicePath)) {\r | |
| 427 | NodeSize = DevicePathNodeLength (DevicePath);\r | |
| 428 | if (NodeSize == 0) {\r | |
| 429 | return 0;\r | |
| 430 | }\r | |
| 431 | Size += NodeSize;\r | |
| 432 | if (Size > MaxSize) {\r | |
| 433 | return 0;\r | |
| 434 | }\r | |
| 435 | DevicePath = NextDevicePathNode (DevicePath);\r | |
| 436 | }\r | |
| 437 | Size += DevicePathNodeLength (DevicePath);\r | |
| 438 | if (Size > MaxSize) {\r | |
| 439 | return 0;\r | |
| 440 | }\r | |
| 441 | \r | |
| 442 | return Size;\r | |
| 443 | }\r | |
| 444 | \r | |
| 445 | /**\r | |
| 446 | Returns the length of a Null-terminated Unicode string. If the length is \r | |
| 447 | bigger than MaxStringLen, return length 0 to indicate that this is an \r | |
| 448 | invalidate string.\r | |
| 449 | \r | |
| 450 | This function returns the number of Unicode characters in the Null-terminated\r | |
| 451 | Unicode string specified by String. \r | |
| 452 | \r | |
| 453 | If String is NULL, then ASSERT().\r | |
| 454 | If String is not aligned on a 16-bit boundary, then ASSERT().\r | |
| 455 | \r | |
| 456 | @param String A pointer to a Null-terminated Unicode string.\r | |
| 457 | @param MaxStringLen Max string len in this string.\r | |
| 458 | \r | |
| 459 | @retval 0 An invalid string.\r | |
| 460 | @retval Others The length of String.\r | |
| 461 | \r | |
| 462 | **/\r | |
| 463 | UINTN\r | |
| 464 | StrSizeEx (\r | |
| 465 | IN CONST CHAR16 *String,\r | |
| 466 | IN UINTN MaxStringLen\r | |
| 467 | )\r | |
| 468 | {\r | |
| 469 | UINTN Length;\r | |
| 470 | \r | |
| 471 | ASSERT (String != NULL && MaxStringLen != 0);\r | |
| 472 | ASSERT (((UINTN) String & BIT0) == 0);\r | |
| 473 | \r | |
| 474 | for (Length = 0; *String != L'\0' && MaxStringLen != Length; String++, Length++);\r | |
| 475 | \r | |
| 476 | if (*String != L'\0' && MaxStringLen == Length) {\r | |
| 477 | return 0;\r | |
| 478 | }\r | |
| 479 | \r | |
| 480 | return (Length + 1) * sizeof (*String);\r | |
| 481 | }\r | |
| 5c08e117 | 482 | \r |
| c1e2752c ED |
483 | /**\r |
| 484 | Convert a single character to number.\r | |
| 485 | It assumes the input Char is in the scope of L'0' ~ L'9' and L'A' ~ L'F'\r | |
| 486 | \r | |
| 487 | @param Char The input char which need to change to a hex number.\r | |
| 488 | \r | |
| 489 | **/\r | |
| 490 | UINTN\r | |
| 491 | CharToUint (\r | |
| 492 | IN CHAR16 Char\r | |
| 493 | )\r | |
| 494 | {\r | |
| 495 | if ((Char >= L'0') && (Char <= L'9')) {\r | |
| 496 | return (UINTN) (Char - L'0');\r | |
| 497 | }\r | |
| 498 | \r | |
| 499 | if ((Char >= L'A') && (Char <= L'F')) {\r | |
| 500 | return (UINTN) (Char - L'A' + 0xA);\r | |
| 501 | }\r | |
| 502 | \r | |
| 503 | ASSERT (FALSE);\r | |
| 504 | return 0;\r | |
| 505 | }\r | |
| 506 | \r | |
| 5c08e117 | 507 | /**\r |
| 508 | Build the boot#### or driver#### option from the VariableName, the\r | |
| 509 | build boot#### or driver#### will also be linked to BdsCommonOptionList.\r | |
| 510 | \r | |
| 511 | @param BdsCommonOptionList The header of the boot#### or driver#### option\r | |
| 512 | link list\r | |
| 513 | @param VariableName EFI Variable name indicate if it is boot#### or\r | |
| 514 | driver####\r | |
| 515 | \r | |
| 516 | @retval BDS_COMMON_OPTION Get the option just been created\r | |
| 517 | @retval NULL Failed to get the new option\r | |
| 518 | \r | |
| 519 | **/\r | |
| 520 | BDS_COMMON_OPTION *\r | |
| 521 | EFIAPI\r | |
| 522 | BdsLibVariableToOption (\r | |
| 523 | IN OUT LIST_ENTRY *BdsCommonOptionList,\r | |
| 524 | IN CHAR16 *VariableName\r | |
| 525 | )\r | |
| 526 | {\r | |
| 527 | UINT32 Attribute;\r | |
| 528 | UINT16 FilePathSize;\r | |
| 529 | UINT8 *Variable;\r | |
| 530 | UINT8 *TempPtr;\r | |
| 531 | UINTN VariableSize;\r | |
| 532 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
| b16cc38b | 533 | EFI_DEVICE_PATH_PROTOCOL *TempPath;\r |
| 5c08e117 | 534 | BDS_COMMON_OPTION *Option;\r |
| 535 | VOID *LoadOptions;\r | |
| 536 | UINT32 LoadOptionsSize;\r | |
| 537 | CHAR16 *Description;\r | |
| 538 | UINT8 NumOff;\r | |
| b16cc38b | 539 | UINTN TempSize;\r |
| 5c08e117 | 540 | //\r |
| 541 | // Read the variable. We will never free this data.\r | |
| 542 | //\r | |
| 543 | Variable = BdsLibGetVariableAndSize (\r | |
| 544 | VariableName,\r | |
| 545 | &gEfiGlobalVariableGuid,\r | |
| 546 | &VariableSize\r | |
| 547 | );\r | |
| 548 | if (Variable == NULL) {\r | |
| 549 | return NULL;\r | |
| 550 | }\r | |
| 551 | //\r | |
| 552 | // Notes: careful defined the variable of Boot#### or\r | |
| 553 | // Driver####, consider use some macro to abstract the code\r | |
| 554 | //\r | |
| 555 | //\r | |
| 556 | // Get the option attribute\r | |
| 557 | //\r | |
| 558 | TempPtr = Variable;\r | |
| 559 | Attribute = *(UINT32 *) Variable;\r | |
| 560 | TempPtr += sizeof (UINT32);\r | |
| 561 | \r | |
| 562 | //\r | |
| 563 | // Get the option's device path size\r | |
| 564 | //\r | |
| 565 | FilePathSize = *(UINT16 *) TempPtr;\r | |
| 566 | TempPtr += sizeof (UINT16);\r | |
| 567 | \r | |
| 568 | //\r | |
| 569 | // Get the option's description string\r | |
| 570 | //\r | |
| 571 | Description = (CHAR16 *) TempPtr;\r | |
| 572 | \r | |
| 573 | //\r | |
| 574 | // Get the option's description string size\r | |
| 575 | //\r | |
| b16cc38b ED |
576 | TempSize = StrSizeEx ((CHAR16 *) TempPtr, VariableSize);\r |
| 577 | if (TempSize == 0) {\r | |
| 578 | return NULL;\r | |
| 579 | }\r | |
| 580 | TempPtr += TempSize;\r | |
| 5c08e117 | 581 | \r |
| 582 | //\r | |
| 583 | // Get the option's device path\r | |
| 584 | //\r | |
| 585 | DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) TempPtr;\r | |
| 586 | TempPtr += FilePathSize;\r | |
| 587 | \r | |
| b16cc38b ED |
588 | //\r |
| 589 | // Validation device path.\r | |
| 590 | //\r | |
| 591 | TempPath = DevicePath;\r | |
| 592 | while (FilePathSize > 0) {\r | |
| 593 | TempSize = GetDevicePathSizeEx (TempPath, FilePathSize);\r | |
| 594 | if (TempSize == 0) {\r | |
| 595 | return NULL;\r | |
| 596 | }\r | |
| 597 | FilePathSize = (UINT16) (FilePathSize - TempSize);\r | |
| 598 | TempPath += TempSize;\r | |
| 599 | }\r | |
| 600 | \r | |
| 601 | //\r | |
| 602 | // Get load opion data.\r | |
| 603 | //\r | |
| 5c08e117 | 604 | LoadOptions = TempPtr;\r |
| b16cc38b ED |
605 | if (VariableSize < (UINTN)(TempPtr - Variable)) {\r |
| 606 | return NULL;\r | |
| 607 | }\r | |
| 5c08e117 | 608 | LoadOptionsSize = (UINT32) (VariableSize - (UINTN) (TempPtr - Variable));\r |
| 609 | \r | |
| 610 | //\r | |
| 611 | // The Console variables may have multiple device paths, so make\r | |
| 612 | // an Entry for each one.\r | |
| 613 | //\r | |
| 614 | Option = AllocateZeroPool (sizeof (BDS_COMMON_OPTION));\r | |
| 615 | if (Option == NULL) {\r | |
| 616 | return NULL;\r | |
| 617 | }\r | |
| 618 | \r | |
| 619 | Option->Signature = BDS_LOAD_OPTION_SIGNATURE;\r | |
| 620 | Option->DevicePath = AllocateZeroPool (GetDevicePathSize (DevicePath));\r | |
| 621 | ASSERT(Option->DevicePath != NULL);\r | |
| 622 | CopyMem (Option->DevicePath, DevicePath, GetDevicePathSize (DevicePath));\r | |
| 623 | \r | |
| 624 | Option->Attribute = Attribute;\r | |
| 625 | Option->Description = AllocateZeroPool (StrSize (Description));\r | |
| 626 | ASSERT(Option->Description != NULL);\r | |
| 627 | CopyMem (Option->Description, Description, StrSize (Description));\r | |
| 628 | \r | |
| 629 | Option->LoadOptions = AllocateZeroPool (LoadOptionsSize);\r | |
| 630 | ASSERT(Option->LoadOptions != NULL);\r | |
| 631 | CopyMem (Option->LoadOptions, LoadOptions, LoadOptionsSize);\r | |
| 632 | Option->LoadOptionsSize = LoadOptionsSize;\r | |
| 633 | \r | |
| 634 | //\r | |
| 635 | // Get the value from VariableName Unicode string\r | |
| 636 | // since the ISO standard assumes ASCII equivalent abbreviations, we can be safe in converting this\r | |
| 637 | // Unicode stream to ASCII without any loss in meaning.\r | |
| 638 | //\r | |
| 639 | if (*VariableName == 'B') {\r | |
| c1e2752c ED |
640 | NumOff = (UINT8) (sizeof (L"Boot") / sizeof (CHAR16) - 1);\r |
| 641 | Option->BootCurrent = (UINT16) (CharToUint (VariableName[NumOff+0]) * 0x1000) \r | |
| 642 | + (UINT16) (CharToUint (VariableName[NumOff+1]) * 0x100)\r | |
| 643 | + (UINT16) (CharToUint (VariableName[NumOff+2]) * 0x10)\r | |
| 644 | + (UINT16) (CharToUint (VariableName[NumOff+3]) * 0x1);\r | |
| 5c08e117 | 645 | }\r |
| 646 | //\r | |
| 647 | // Insert active entry to BdsDeviceList\r | |
| 648 | //\r | |
| 649 | if ((Option->Attribute & LOAD_OPTION_ACTIVE) == LOAD_OPTION_ACTIVE) {\r | |
| 650 | InsertTailList (BdsCommonOptionList, &Option->Link);\r | |
| 651 | FreePool (Variable);\r | |
| 652 | return Option;\r | |
| 653 | }\r | |
| 654 | \r | |
| 655 | FreePool (Variable);\r | |
| 656 | FreePool (Option);\r | |
| 657 | return NULL;\r | |
| 658 | \r | |
| 659 | }\r | |
| 660 | \r | |
| 661 | /**\r | |
| 662 | Process BootOrder, or DriverOrder variables, by calling\r | |
| 663 | BdsLibVariableToOption () for each UINT16 in the variables.\r | |
| 664 | \r | |
| 665 | @param BdsCommonOptionList The header of the option list base on variable\r | |
| 666 | VariableName\r | |
| 667 | @param VariableName EFI Variable name indicate the BootOrder or\r | |
| 668 | DriverOrder\r | |
| 669 | \r | |
| 670 | @retval EFI_SUCCESS Success create the boot option or driver option\r | |
| 671 | list\r | |
| 672 | @retval EFI_OUT_OF_RESOURCES Failed to get the boot option or driver option list\r | |
| 673 | \r | |
| 674 | **/\r | |
| 675 | EFI_STATUS\r | |
| 676 | EFIAPI\r | |
| 677 | BdsLibBuildOptionFromVar (\r | |
| 678 | IN LIST_ENTRY *BdsCommonOptionList,\r | |
| 679 | IN CHAR16 *VariableName\r | |
| 680 | )\r | |
| 681 | {\r | |
| 682 | UINT16 *OptionOrder;\r | |
| 683 | UINTN OptionOrderSize;\r | |
| 684 | UINTN Index;\r | |
| 685 | BDS_COMMON_OPTION *Option;\r | |
| 686 | CHAR16 OptionName[20];\r | |
| 687 | \r | |
| 688 | //\r | |
| 689 | // Zero Buffer in order to get all BOOT#### variables\r | |
| 690 | //\r | |
| 691 | ZeroMem (OptionName, sizeof (OptionName));\r | |
| 692 | \r | |
| 693 | //\r | |
| 694 | // Read the BootOrder, or DriverOrder variable.\r | |
| 695 | //\r | |
| 696 | OptionOrder = BdsLibGetVariableAndSize (\r | |
| 697 | VariableName,\r | |
| 698 | &gEfiGlobalVariableGuid,\r | |
| 699 | &OptionOrderSize\r | |
| 700 | );\r | |
| 701 | if (OptionOrder == NULL) {\r | |
| 702 | return EFI_OUT_OF_RESOURCES;\r | |
| 703 | }\r | |
| 704 | \r | |
| 705 | for (Index = 0; Index < OptionOrderSize / sizeof (UINT16); Index++) {\r | |
| 706 | if (*VariableName == 'B') {\r | |
| 707 | UnicodeSPrint (OptionName, sizeof (OptionName), L"Boot%04x", OptionOrder[Index]);\r | |
| 708 | } else {\r | |
| 709 | UnicodeSPrint (OptionName, sizeof (OptionName), L"Driver%04x", OptionOrder[Index]);\r | |
| 710 | }\r | |
| 711 | \r | |
| 712 | Option = BdsLibVariableToOption (BdsCommonOptionList, OptionName);\r | |
| 7490e2be | 713 | if (Option != NULL) {\r |
| 714 | Option->BootCurrent = OptionOrder[Index];\r | |
| 715 | }\r | |
| 5c08e117 | 716 | }\r |
| 717 | \r | |
| 718 | FreePool (OptionOrder);\r | |
| 719 | \r | |
| 720 | return EFI_SUCCESS;\r | |
| 721 | }\r | |
| 722 | \r | |
| 723 | /**\r | |
| 724 | Get boot mode by looking up configuration table and parsing HOB list\r | |
| 725 | \r | |
| 726 | @param BootMode Boot mode from PEI handoff HOB.\r | |
| 727 | \r | |
| 728 | @retval EFI_SUCCESS Successfully get boot mode\r | |
| 729 | \r | |
| 730 | **/\r | |
| 731 | EFI_STATUS\r | |
| 732 | EFIAPI\r | |
| 733 | BdsLibGetBootMode (\r | |
| 734 | OUT EFI_BOOT_MODE *BootMode\r | |
| 735 | )\r | |
| 736 | {\r | |
| 737 | *BootMode = GetBootModeHob ();\r | |
| 738 | \r | |
| 739 | return EFI_SUCCESS;\r | |
| 740 | }\r | |
| 741 | \r | |
| 742 | /**\r | |
| 743 | Read the EFI variable (VendorGuid/Name) and return a dynamically allocated\r | |
| 744 | buffer, and the size of the buffer. If failure return NULL.\r | |
| 745 | \r | |
| 746 | @param Name String part of EFI variable name\r | |
| 747 | @param VendorGuid GUID part of EFI variable name\r | |
| 748 | @param VariableSize Returns the size of the EFI variable that was read\r | |
| 749 | \r | |
| 750 | @return Dynamically allocated memory that contains a copy of the EFI variable\r | |
| 751 | Caller is responsible freeing the buffer.\r | |
| 752 | @retval NULL Variable was not read\r | |
| 753 | \r | |
| 754 | **/\r | |
| 755 | VOID *\r | |
| 756 | EFIAPI\r | |
| 757 | BdsLibGetVariableAndSize (\r | |
| 758 | IN CHAR16 *Name,\r | |
| 759 | IN EFI_GUID *VendorGuid,\r | |
| 760 | OUT UINTN *VariableSize\r | |
| 761 | )\r | |
| 762 | {\r | |
| 763 | EFI_STATUS Status;\r | |
| 764 | UINTN BufferSize;\r | |
| 765 | VOID *Buffer;\r | |
| 766 | \r | |
| 767 | Buffer = NULL;\r | |
| 768 | \r | |
| 769 | //\r | |
| 770 | // Pass in a zero size buffer to find the required buffer size.\r | |
| 771 | //\r | |
| 772 | BufferSize = 0;\r | |
| 773 | Status = gRT->GetVariable (Name, VendorGuid, NULL, &BufferSize, Buffer);\r | |
| 774 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
| 775 | //\r | |
| 776 | // Allocate the buffer to return\r | |
| 777 | //\r | |
| 778 | Buffer = AllocateZeroPool (BufferSize);\r | |
| 779 | if (Buffer == NULL) {\r | |
| 780 | return NULL;\r | |
| 781 | }\r | |
| 782 | //\r | |
| 783 | // Read variable into the allocated buffer.\r | |
| 784 | //\r | |
| 785 | Status = gRT->GetVariable (Name, VendorGuid, NULL, &BufferSize, Buffer);\r | |
| 786 | if (EFI_ERROR (Status)) {\r | |
| 787 | BufferSize = 0;\r | |
| 788 | }\r | |
| 789 | }\r | |
| 790 | \r | |
| 791 | *VariableSize = BufferSize;\r | |
| 792 | return Buffer;\r | |
| 793 | }\r | |
| 794 | \r | |
| 795 | /**\r | |
| 796 | Delete the instance in Multi which matches partly with Single instance\r | |
| 797 | \r | |
| 798 | @param Multi A pointer to a multi-instance device path data\r | |
| 799 | structure.\r | |
| 800 | @param Single A pointer to a single-instance device path data\r | |
| 801 | structure.\r | |
| 802 | \r | |
| 803 | @return This function will remove the device path instances in Multi which partly\r | |
| 804 | match with the Single, and return the result device path. If there is no\r | |
| 805 | remaining device path as a result, this function will return NULL.\r | |
| 806 | \r | |
| 807 | **/\r | |
| 808 | EFI_DEVICE_PATH_PROTOCOL *\r | |
| 809 | EFIAPI\r | |
| 810 | BdsLibDelPartMatchInstance (\r | |
| 811 | IN EFI_DEVICE_PATH_PROTOCOL *Multi,\r | |
| 812 | IN EFI_DEVICE_PATH_PROTOCOL *Single\r | |
| 813 | )\r | |
| 814 | {\r | |
| 815 | EFI_DEVICE_PATH_PROTOCOL *Instance;\r | |
| 816 | EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;\r | |
| 817 | EFI_DEVICE_PATH_PROTOCOL *TempNewDevicePath;\r | |
| 818 | UINTN InstanceSize;\r | |
| 819 | UINTN SingleDpSize;\r | |
| 820 | UINTN Size;\r | |
| 821 | \r | |
| 822 | NewDevicePath = NULL;\r | |
| 823 | TempNewDevicePath = NULL;\r | |
| 824 | \r | |
| 825 | if (Multi == NULL || Single == NULL) {\r | |
| 826 | return Multi;\r | |
| 827 | }\r | |
| 828 | \r | |
| 829 | Instance = GetNextDevicePathInstance (&Multi, &InstanceSize);\r | |
| 830 | SingleDpSize = GetDevicePathSize (Single) - END_DEVICE_PATH_LENGTH;\r | |
| 831 | InstanceSize -= END_DEVICE_PATH_LENGTH;\r | |
| 832 | \r | |
| 833 | while (Instance != NULL) {\r | |
| 834 | \r | |
| 835 | Size = (SingleDpSize < InstanceSize) ? SingleDpSize : InstanceSize;\r | |
| 836 | \r | |
| 837 | if ((CompareMem (Instance, Single, Size) != 0)) {\r | |
| 838 | //\r | |
| 839 | // Append the device path instance which does not match with Single\r | |
| 840 | //\r | |
| 841 | TempNewDevicePath = NewDevicePath;\r | |
| 842 | NewDevicePath = AppendDevicePathInstance (NewDevicePath, Instance);\r | |
| 843 | if (TempNewDevicePath != NULL) {\r | |
| 844 | FreePool(TempNewDevicePath);\r | |
| 845 | }\r | |
| 846 | }\r | |
| 847 | FreePool(Instance);\r | |
| 848 | Instance = GetNextDevicePathInstance (&Multi, &InstanceSize);\r | |
| 849 | InstanceSize -= END_DEVICE_PATH_LENGTH;\r | |
| 850 | }\r | |
| 851 | \r | |
| 852 | return NewDevicePath;\r | |
| 853 | }\r | |
| 854 | \r | |
| 855 | /**\r | |
| 856 | Function compares a device path data structure to that of all the nodes of a\r | |
| 857 | second device path instance.\r | |
| 858 | \r | |
| 859 | @param Multi A pointer to a multi-instance device path data\r | |
| 860 | structure.\r | |
| 861 | @param Single A pointer to a single-instance device path data\r | |
| 862 | structure.\r | |
| 863 | \r | |
| 864 | @retval TRUE If the Single device path is contained within Multi device path.\r | |
| 865 | @retval FALSE The Single device path is not match within Multi device path.\r | |
| 866 | \r | |
| 867 | **/\r | |
| 868 | BOOLEAN\r | |
| 869 | EFIAPI\r | |
| 870 | BdsLibMatchDevicePaths (\r | |
| 871 | IN EFI_DEVICE_PATH_PROTOCOL *Multi,\r | |
| 872 | IN EFI_DEVICE_PATH_PROTOCOL *Single\r | |
| 873 | )\r | |
| 874 | {\r | |
| 875 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
| 876 | EFI_DEVICE_PATH_PROTOCOL *DevicePathInst;\r | |
| 877 | UINTN Size;\r | |
| 878 | \r | |
| 879 | if (Multi == NULL || Single == NULL) {\r | |
| 880 | return FALSE;\r | |
| 881 | }\r | |
| 882 | \r | |
| 883 | DevicePath = Multi;\r | |
| 884 | DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);\r | |
| 885 | \r | |
| 886 | //\r | |
| 887 | // Search for the match of 'Single' in 'Multi'\r | |
| 888 | //\r | |
| 889 | while (DevicePathInst != NULL) {\r | |
| 890 | //\r | |
| 891 | // If the single device path is found in multiple device paths,\r | |
| 892 | // return success\r | |
| 893 | //\r | |
| 894 | if (CompareMem (Single, DevicePathInst, Size) == 0) {\r | |
| 895 | FreePool (DevicePathInst);\r | |
| 896 | return TRUE;\r | |
| 897 | }\r | |
| 898 | \r | |
| 899 | FreePool (DevicePathInst);\r | |
| 900 | DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);\r | |
| 901 | }\r | |
| 902 | \r | |
| 903 | return FALSE;\r | |
| 904 | }\r | |
| 905 | \r | |
| 906 | /**\r | |
| 907 | This function prints a series of strings.\r | |
| 908 | \r | |
| 909 | @param ConOut Pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL\r | |
| 910 | @param ... A variable argument list containing series of\r | |
| 911 | strings, the last string must be NULL.\r | |
| 912 | \r | |
| 913 | @retval EFI_SUCCESS Success print out the string using ConOut.\r | |
| 914 | @retval EFI_STATUS Return the status of the ConOut->OutputString ().\r | |
| 915 | \r | |
| 916 | **/\r | |
| 917 | EFI_STATUS\r | |
| 918 | EFIAPI\r | |
| 919 | BdsLibOutputStrings (\r | |
| 920 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *ConOut,\r | |
| 921 | ...\r | |
| 922 | )\r | |
| 923 | {\r | |
| 924 | VA_LIST Args;\r | |
| 925 | EFI_STATUS Status;\r | |
| 926 | CHAR16 *String;\r | |
| 927 | \r | |
| 928 | Status = EFI_SUCCESS;\r | |
| 929 | VA_START (Args, ConOut);\r | |
| 930 | \r | |
| 931 | while (!EFI_ERROR (Status)) {\r | |
| 932 | //\r | |
| 933 | // If String is NULL, then it's the end of the list\r | |
| 934 | //\r | |
| 935 | String = VA_ARG (Args, CHAR16 *);\r | |
| 31b440cf | 936 | if (String == NULL) {\r |
| 5c08e117 | 937 | break;\r |
| 938 | }\r | |
| 939 | \r | |
| 940 | Status = ConOut->OutputString (ConOut, String);\r | |
| 941 | \r | |
| 942 | if (EFI_ERROR (Status)) {\r | |
| 943 | break;\r | |
| 944 | }\r | |
| 945 | }\r | |
| 946 | \r | |
| 947 | VA_END(Args);\r | |
| 948 | return Status;\r | |
| 949 | }\r | |
| 950 | \r | |
| 951 | //\r | |
| 8d3b5aff | 952 | // Following are BDS Lib functions which contain all the code about setup browser reset reminder feature.\r |
| 5c08e117 | 953 | // Setup Browser reset reminder feature is that an reset reminder will be given before user leaves the setup browser if\r |
| 954 | // user change any option setting which needs a reset to be effective, and the reset will be applied according to the user selection.\r | |
| 955 | //\r | |
| 956 | \r | |
| 957 | \r | |
| 958 | /**\r | |
| 959 | Enable the setup browser reset reminder feature.\r | |
| 960 | This routine is used in platform tip. If the platform policy need the feature, use the routine to enable it.\r | |
| 961 | \r | |
| 962 | **/\r | |
| 963 | VOID\r | |
| 964 | EFIAPI\r | |
| 965 | EnableResetReminderFeature (\r | |
| 966 | VOID\r | |
| 967 | )\r | |
| 968 | {\r | |
| 969 | mFeaturerSwitch = TRUE;\r | |
| 970 | }\r | |
| 971 | \r | |
| 972 | \r | |
| 973 | /**\r | |
| 974 | Disable the setup browser reset reminder feature.\r | |
| 975 | This routine is used in platform tip. If the platform policy do not want the feature, use the routine to disable it.\r | |
| 976 | \r | |
| 977 | **/\r | |
| 978 | VOID\r | |
| 979 | EFIAPI\r | |
| 980 | DisableResetReminderFeature (\r | |
| 981 | VOID\r | |
| 982 | )\r | |
| 983 | {\r | |
| 984 | mFeaturerSwitch = FALSE;\r | |
| 985 | }\r | |
| 986 | \r | |
| 987 | \r | |
| 988 | /**\r | |
| 989 | Record the info that a reset is required.\r | |
| 990 | A module boolean variable is used to record whether a reset is required.\r | |
| 991 | \r | |
| 992 | **/\r | |
| 993 | VOID\r | |
| 994 | EFIAPI\r | |
| 995 | EnableResetRequired (\r | |
| 996 | VOID\r | |
| 997 | )\r | |
| 998 | {\r | |
| 999 | mResetRequired = TRUE;\r | |
| 1000 | }\r | |
| 1001 | \r | |
| 1002 | \r | |
| 1003 | /**\r | |
| 1004 | Record the info that no reset is required.\r | |
| 1005 | A module boolean variable is used to record whether a reset is required.\r | |
| 1006 | \r | |
| 1007 | **/\r | |
| 1008 | VOID\r | |
| 1009 | EFIAPI\r | |
| 1010 | DisableResetRequired (\r | |
| 1011 | VOID\r | |
| 1012 | )\r | |
| 1013 | {\r | |
| 1014 | mResetRequired = FALSE;\r | |
| 1015 | }\r | |
| 1016 | \r | |
| 1017 | \r | |
| 1018 | /**\r | |
| 1019 | Check whether platform policy enable the reset reminder feature. The default is enabled.\r | |
| 1020 | \r | |
| 1021 | **/\r | |
| 1022 | BOOLEAN\r | |
| 1023 | EFIAPI\r | |
| 1024 | IsResetReminderFeatureEnable (\r | |
| 1025 | VOID\r | |
| 1026 | )\r | |
| 1027 | {\r | |
| 1028 | return mFeaturerSwitch;\r | |
| 1029 | }\r | |
| 1030 | \r | |
| 1031 | \r | |
| 1032 | /**\r | |
| 1033 | Check if user changed any option setting which needs a system reset to be effective.\r | |
| 1034 | \r | |
| 1035 | **/\r | |
| 1036 | BOOLEAN\r | |
| 1037 | EFIAPI\r | |
| 1038 | IsResetRequired (\r | |
| 1039 | VOID\r | |
| 1040 | )\r | |
| 1041 | {\r | |
| 1042 | return mResetRequired;\r | |
| 1043 | }\r | |
| 1044 | \r | |
| 1045 | \r | |
| 1046 | /**\r | |
| 1047 | Check whether a reset is needed, and finish the reset reminder feature.\r | |
| 1048 | If a reset is needed, Popup a menu to notice user, and finish the feature\r | |
| 1049 | according to the user selection.\r | |
| 1050 | \r | |
| 1051 | **/\r | |
| 1052 | VOID\r | |
| 1053 | EFIAPI\r | |
| 1054 | SetupResetReminder (\r | |
| 1055 | VOID\r | |
| 1056 | )\r | |
| 1057 | {\r | |
| 1058 | EFI_INPUT_KEY Key;\r | |
| 1059 | CHAR16 *StringBuffer1;\r | |
| 1060 | CHAR16 *StringBuffer2;\r | |
| 1061 | \r | |
| 1062 | \r | |
| 1063 | //\r | |
| 1064 | //check any reset required change is applied? if yes, reset system\r | |
| 1065 | //\r | |
| 1066 | if (IsResetReminderFeatureEnable ()) {\r | |
| 1067 | if (IsResetRequired ()) {\r | |
| 1068 | \r | |
| 1069 | StringBuffer1 = AllocateZeroPool (MAX_STRING_LEN * sizeof (CHAR16));\r | |
| 1070 | ASSERT (StringBuffer1 != NULL);\r | |
| 1071 | StringBuffer2 = AllocateZeroPool (MAX_STRING_LEN * sizeof (CHAR16));\r | |
| 1072 | ASSERT (StringBuffer2 != NULL);\r | |
| 1073 | StrCpy (StringBuffer1, L"Configuration changed. Reset to apply it Now ? ");\r | |
| 1074 | StrCpy (StringBuffer2, L"Enter (YES) / Esc (NO)");\r | |
| 1075 | //\r | |
| 1076 | // Popup a menu to notice user\r | |
| 1077 | //\r | |
| 1078 | do {\r | |
| e3b236c8 | 1079 | CreatePopUp (EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE, &Key, StringBuffer1, StringBuffer2, NULL);\r |
| 5c08e117 | 1080 | } while ((Key.ScanCode != SCAN_ESC) && (Key.UnicodeChar != CHAR_CARRIAGE_RETURN));\r |
| 1081 | \r | |
| 1082 | FreePool (StringBuffer1);\r | |
| 1083 | FreePool (StringBuffer2);\r | |
| 1084 | //\r | |
| 1085 | // If the user hits the YES Response key, reset\r | |
| 1086 | //\r | |
| 5817d508 | 1087 | if (Key.UnicodeChar == CHAR_CARRIAGE_RETURN) {\r |
| 5c08e117 | 1088 | gRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL);\r |
| 1089 | }\r | |
| 1090 | gST->ConOut->ClearScreen (gST->ConOut);\r | |
| 1091 | }\r | |
| 1092 | }\r | |
| 1093 | }\r | |
| 1094 | \r | |
| 1095 | /**\r | |
| 1096 | Get the headers (dos, image, optional header) from an image\r | |
| 1097 | \r | |
| 1098 | @param Device SimpleFileSystem device handle\r | |
| 1099 | @param FileName File name for the image\r | |
| 1100 | @param DosHeader Pointer to dos header\r | |
| 1101 | @param Hdr The buffer in which to return the PE32, PE32+, or TE header.\r | |
| 1102 | \r | |
| 1103 | @retval EFI_SUCCESS Successfully get the machine type.\r | |
| 1104 | @retval EFI_NOT_FOUND The file is not found.\r | |
| 1105 | @retval EFI_LOAD_ERROR File is not a valid image file.\r | |
| 1106 | \r | |
| 1107 | **/\r | |
| 1108 | EFI_STATUS\r | |
| 1109 | EFIAPI\r | |
| 1110 | BdsLibGetImageHeader (\r | |
| 1111 | IN EFI_HANDLE Device,\r | |
| 1112 | IN CHAR16 *FileName,\r | |
| 1113 | OUT EFI_IMAGE_DOS_HEADER *DosHeader,\r | |
| 1114 | OUT EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr\r | |
| 1115 | )\r | |
| 1116 | {\r | |
| 1117 | EFI_STATUS Status;\r | |
| 1118 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *Volume;\r | |
| 1119 | EFI_FILE_HANDLE Root;\r | |
| 1120 | EFI_FILE_HANDLE ThisFile;\r | |
| 1121 | UINTN BufferSize;\r | |
| 1122 | UINT64 FileSize;\r | |
| 1123 | EFI_FILE_INFO *Info;\r | |
| 1124 | \r | |
| 1125 | Root = NULL;\r | |
| 1126 | ThisFile = NULL;\r | |
| 1127 | //\r | |
| 1128 | // Handle the file system interface to the device\r | |
| 1129 | //\r | |
| 1130 | Status = gBS->HandleProtocol (\r | |
| 1131 | Device,\r | |
| 1132 | &gEfiSimpleFileSystemProtocolGuid,\r | |
| 1133 | (VOID *) &Volume\r | |
| 1134 | );\r | |
| 1135 | if (EFI_ERROR (Status)) {\r | |
| 1136 | goto Done;\r | |
| 1137 | }\r | |
| 1138 | \r | |
| 1139 | Status = Volume->OpenVolume (\r | |
| 1140 | Volume,\r | |
| 1141 | &Root\r | |
| 1142 | );\r | |
| 1143 | if (EFI_ERROR (Status)) {\r | |
| 1144 | Root = NULL;\r | |
| 1145 | goto Done;\r | |
| 1146 | }\r | |
| da166a5d | 1147 | ASSERT (Root != NULL);\r |
| 5c08e117 | 1148 | Status = Root->Open (Root, &ThisFile, FileName, EFI_FILE_MODE_READ, 0);\r |
| 1149 | if (EFI_ERROR (Status)) {\r | |
| 1150 | goto Done;\r | |
| 1151 | }\r | |
| da166a5d | 1152 | ASSERT (ThisFile != NULL);\r |
| 5c08e117 | 1153 | \r |
| 1154 | //\r | |
| 1155 | // Get file size\r | |
| 1156 | //\r | |
| 1157 | BufferSize = SIZE_OF_EFI_FILE_INFO + 200;\r | |
| 1158 | do {\r | |
| 1159 | Info = NULL;\r | |
| 1160 | Status = gBS->AllocatePool (EfiBootServicesData, BufferSize, (VOID **) &Info);\r | |
| 1161 | if (EFI_ERROR (Status)) {\r | |
| 1162 | goto Done;\r | |
| 1163 | }\r | |
| 1164 | Status = ThisFile->GetInfo (\r | |
| 1165 | ThisFile,\r | |
| 1166 | &gEfiFileInfoGuid,\r | |
| 1167 | &BufferSize,\r | |
| 1168 | Info\r | |
| 1169 | );\r | |
| 1170 | if (!EFI_ERROR (Status)) {\r | |
| 1171 | break;\r | |
| 1172 | }\r | |
| 1173 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
| 1174 | FreePool (Info);\r | |
| 1175 | goto Done;\r | |
| 1176 | }\r | |
| 1177 | FreePool (Info);\r | |
| 1178 | } while (TRUE);\r | |
| 1179 | \r | |
| 1180 | FileSize = Info->FileSize;\r | |
| 1181 | FreePool (Info);\r | |
| 1182 | \r | |
| 1183 | //\r | |
| 1184 | // Read dos header\r | |
| 1185 | //\r | |
| 1186 | BufferSize = sizeof (EFI_IMAGE_DOS_HEADER);\r | |
| 1187 | Status = ThisFile->Read (ThisFile, &BufferSize, DosHeader);\r | |
| 1188 | if (EFI_ERROR (Status) ||\r | |
| 1189 | BufferSize < sizeof (EFI_IMAGE_DOS_HEADER) ||\r | |
| 1190 | FileSize <= DosHeader->e_lfanew ||\r | |
| 1191 | DosHeader->e_magic != EFI_IMAGE_DOS_SIGNATURE) {\r | |
| 1192 | Status = EFI_LOAD_ERROR;\r | |
| 1193 | goto Done;\r | |
| 1194 | }\r | |
| 1195 | \r | |
| 1196 | //\r | |
| 1197 | // Move to PE signature\r | |
| 1198 | //\r | |
| 1199 | Status = ThisFile->SetPosition (ThisFile, DosHeader->e_lfanew);\r | |
| 1200 | if (EFI_ERROR (Status)) {\r | |
| 1201 | Status = EFI_LOAD_ERROR;\r | |
| 1202 | goto Done;\r | |
| 1203 | }\r | |
| 1204 | \r | |
| 1205 | //\r | |
| 1206 | // Read and check PE signature\r | |
| 1207 | //\r | |
| 1208 | BufferSize = sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION);\r | |
| 1209 | Status = ThisFile->Read (ThisFile, &BufferSize, Hdr.Pe32);\r | |
| 1210 | if (EFI_ERROR (Status) ||\r | |
| 1211 | BufferSize < sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION) ||\r | |
| 1212 | Hdr.Pe32->Signature != EFI_IMAGE_NT_SIGNATURE) {\r | |
| 1213 | Status = EFI_LOAD_ERROR;\r | |
| 1214 | goto Done;\r | |
| 1215 | }\r | |
| 1216 | \r | |
| 1217 | //\r | |
| 1218 | // Check PE32 or PE32+ magic\r | |
| 1219 | //\r | |
| 1220 | if (Hdr.Pe32->OptionalHeader.Magic != EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC &&\r | |
| 1221 | Hdr.Pe32->OptionalHeader.Magic != EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {\r | |
| 1222 | Status = EFI_LOAD_ERROR;\r | |
| 1223 | goto Done;\r | |
| 1224 | }\r | |
| 1225 | \r | |
| 1226 | Done:\r | |
| 1227 | if (ThisFile != NULL) {\r | |
| 1228 | ThisFile->Close (ThisFile);\r | |
| 1229 | }\r | |
| 1230 | if (Root != NULL) {\r | |
| 1231 | Root->Close (Root);\r | |
| 1232 | }\r | |
| 1233 | return Status;\r | |
| 1234 | }\r | |
| 1235 | \r | |
| 1236 | /**\r | |
| a97a8596 RN |
1237 | This routine adjusts the memory information for different memory type and \r |
| 1238 | saves them into the variables for next boot. It conditionally resets the\r | |
| 1239 | system when the memory information changes. Platform can reserve memory \r | |
| 1240 | large enough (125% of actual requirement) to avoid the reset in the first boot.\r | |
| 5c08e117 | 1241 | **/\r |
| 1242 | VOID\r | |
| 5c08e117 | 1243 | BdsSetMemoryTypeInformationVariable (\r |
| 7caf72a9 | 1244 | VOID\r |
| 5c08e117 | 1245 | )\r |
| 1246 | {\r | |
| 1247 | EFI_STATUS Status;\r | |
| 1248 | EFI_MEMORY_TYPE_INFORMATION *PreviousMemoryTypeInformation;\r | |
| 1249 | EFI_MEMORY_TYPE_INFORMATION *CurrentMemoryTypeInformation;\r | |
| 1250 | UINTN VariableSize;\r | |
| 5c08e117 | 1251 | UINTN Index;\r |
| 1252 | UINTN Index1;\r | |
| 1253 | UINT32 Previous;\r | |
| 1254 | UINT32 Current;\r | |
| 1255 | UINT32 Next;\r | |
| 1256 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
| 7bee5a76 | 1257 | BOOLEAN MemoryTypeInformationModified;\r |
| a4e9b4f6 | 1258 | BOOLEAN MemoryTypeInformationVariableExists;\r |
| 8c716296 | 1259 | EFI_BOOT_MODE BootMode;\r |
| a4e9b4f6 | 1260 | \r |
| 7bee5a76 | 1261 | MemoryTypeInformationModified = FALSE;\r |
| a4e9b4f6 | 1262 | MemoryTypeInformationVariableExists = FALSE;\r |
| 1263 | \r | |
| 8c716296 | 1264 | \r |
| 1265 | BootMode = GetBootModeHob ();\r | |
| 1266 | //\r | |
| 1267 | // In BOOT_IN_RECOVERY_MODE, Variable region is not reliable.\r | |
| 1268 | //\r | |
| 1269 | if (BootMode == BOOT_IN_RECOVERY_MODE) {\r | |
| 1270 | return;\r | |
| 1271 | }\r | |
| 1272 | \r | |
| 7bee5a76 | 1273 | //\r |
| a97a8596 | 1274 | // Only check the the Memory Type Information variable in the boot mode \r |
| 7bee5a76 RN |
1275 | // other than BOOT_WITH_DEFAULT_SETTINGS because the Memory Type\r |
| 1276 | // Information is not valid in this boot mode.\r | |
| 1277 | //\r | |
| 8c716296 | 1278 | if (BootMode != BOOT_WITH_DEFAULT_SETTINGS) {\r |
| a4e9b4f6 | 1279 | VariableSize = 0;\r |
| 1280 | Status = gRT->GetVariable (\r | |
| 1281 | EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME,\r | |
| 1282 | &gEfiMemoryTypeInformationGuid,\r | |
| 1283 | NULL, \r | |
| 1284 | &VariableSize, \r | |
| 1285 | NULL\r | |
| 1286 | );\r | |
| 1287 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
| 1288 | MemoryTypeInformationVariableExists = TRUE;\r | |
| a4e9b4f6 | 1289 | }\r |
| 1290 | }\r | |
| 5c08e117 | 1291 | \r |
| 1292 | //\r | |
| 1293 | // Retrieve the current memory usage statistics. If they are not found, then\r | |
| 1294 | // no adjustments can be made to the Memory Type Information variable.\r | |
| 1295 | //\r | |
| 1296 | Status = EfiGetSystemConfigurationTable (\r | |
| 1297 | &gEfiMemoryTypeInformationGuid,\r | |
| 1298 | (VOID **) &CurrentMemoryTypeInformation\r | |
| 1299 | );\r | |
| 1300 | if (EFI_ERROR (Status) || CurrentMemoryTypeInformation == NULL) {\r | |
| 1301 | return;\r | |
| 1302 | }\r | |
| 1303 | \r | |
| 1304 | //\r | |
| 1305 | // Get the Memory Type Information settings from Hob if they exist,\r | |
| 1306 | // PEI is responsible for getting them from variable and build a Hob to save them.\r | |
| 1307 | // If the previous Memory Type Information is not available, then set defaults\r | |
| 1308 | //\r | |
| 1309 | GuidHob = GetFirstGuidHob (&gEfiMemoryTypeInformationGuid);\r | |
| 1310 | if (GuidHob == NULL) {\r | |
| 1311 | //\r | |
| 1312 | // If Platform has not built Memory Type Info into the Hob, just return.\r | |
| 1313 | //\r | |
| 1314 | return;\r | |
| 1315 | }\r | |
| 1316 | PreviousMemoryTypeInformation = GET_GUID_HOB_DATA (GuidHob);\r | |
| 1317 | VariableSize = GET_GUID_HOB_DATA_SIZE (GuidHob);\r | |
| 1318 | \r | |
| 1319 | //\r | |
| 1320 | // Use a heuristic to adjust the Memory Type Information for the next boot\r | |
| 1321 | //\r | |
| a4e9b4f6 | 1322 | DEBUG ((EFI_D_INFO, "Memory Previous Current Next \n"));\r |
| 1323 | DEBUG ((EFI_D_INFO, " Type Pages Pages Pages \n"));\r | |
| 1324 | DEBUG ((EFI_D_INFO, "====== ======== ======== ========\n"));\r | |
| 1325 | \r | |
| 5c08e117 | 1326 | for (Index = 0; PreviousMemoryTypeInformation[Index].Type != EfiMaxMemoryType; Index++) {\r |
| 1327 | \r | |
| 5c08e117 | 1328 | for (Index1 = 0; CurrentMemoryTypeInformation[Index1].Type != EfiMaxMemoryType; Index1++) {\r |
| 1329 | if (PreviousMemoryTypeInformation[Index].Type == CurrentMemoryTypeInformation[Index1].Type) {\r | |
| 5c08e117 | 1330 | break;\r |
| 1331 | }\r | |
| 1332 | }\r | |
| 5c08e117 | 1333 | if (CurrentMemoryTypeInformation[Index1].Type == EfiMaxMemoryType) {\r |
| 1334 | continue;\r | |
| 1335 | }\r | |
| 1336 | \r | |
| a97a8596 RN |
1337 | //\r |
| 1338 | // Previous is the number of pages pre-allocated\r | |
| 1339 | // Current is the number of pages actually needed\r | |
| 1340 | //\r | |
| 5c08e117 | 1341 | Previous = PreviousMemoryTypeInformation[Index].NumberOfPages;\r |
| a97a8596 RN |
1342 | Current = CurrentMemoryTypeInformation[Index1].NumberOfPages;\r |
| 1343 | Next = Previous;\r | |
| 5c08e117 | 1344 | \r |
| 1345 | //\r | |
| 1346 | // Write next varible to 125% * current and Inconsistent Memory Reserved across bootings may lead to S4 fail\r | |
| 1347 | //\r | |
| a97a8596 RN |
1348 | if (Current < Previous) {\r |
| 1349 | if (BootMode == BOOT_WITH_DEFAULT_SETTINGS) {\r | |
| 1350 | Next = Current + (Current >> 2);\r | |
| 1351 | } else if (!MemoryTypeInformationVariableExists) {\r | |
| 1352 | Next = MAX (Current + (Current >> 2), Previous);\r | |
| 1353 | }\r | |
| a4e9b4f6 | 1354 | } else if (Current > Previous) {\r |
| 5c08e117 | 1355 | Next = Current + (Current >> 2);\r |
| 5c08e117 | 1356 | }\r |
| 1357 | if (Next > 0 && Next < 4) {\r | |
| 1358 | Next = 4;\r | |
| 1359 | }\r | |
| 1360 | \r | |
| 1361 | if (Next != Previous) {\r | |
| 1362 | PreviousMemoryTypeInformation[Index].NumberOfPages = Next;\r | |
| 7bee5a76 | 1363 | MemoryTypeInformationModified = TRUE;\r |
| 5c08e117 | 1364 | }\r |
| 1365 | \r | |
| a4e9b4f6 | 1366 | DEBUG ((EFI_D_INFO, " %02x %08x %08x %08x\n", PreviousMemoryTypeInformation[Index].Type, Previous, Current, Next));\r |
| 5c08e117 | 1367 | }\r |
| 1368 | \r | |
| 1369 | //\r | |
| 7bee5a76 RN |
1370 | // If any changes were made to the Memory Type Information settings, then set the new variable value;\r |
| 1371 | // Or create the variable in first boot.\r | |
| 5c08e117 | 1372 | //\r |
| 7bee5a76 | 1373 | if (MemoryTypeInformationModified || !MemoryTypeInformationVariableExists) {\r |
| 5c08e117 | 1374 | Status = gRT->SetVariable (\r |
| 7bee5a76 RN |
1375 | EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME,\r |
| 1376 | &gEfiMemoryTypeInformationGuid,\r | |
| 1377 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
| 1378 | VariableSize,\r | |
| 1379 | PreviousMemoryTypeInformation\r | |
| 1380 | );\r | |
| 1381 | \r | |
| 1382 | //\r | |
| 1383 | // If the Memory Type Information settings have been modified, then reset the platform\r | |
| 1384 | // so the new Memory Type Information setting will be used to guarantee that an S4\r | |
| 1385 | // entry/resume cycle will not fail.\r | |
| 1386 | //\r | |
| 7caf72a9 RN |
1387 | if (MemoryTypeInformationModified && PcdGetBool (PcdResetOnMemoryTypeInformationChange)) {\r |
| 1388 | DEBUG ((EFI_D_INFO, "Memory Type Information settings change. Warm Reset!!!\n"));\r | |
| 7bee5a76 RN |
1389 | gRT->ResetSystem (EfiResetWarm, EFI_SUCCESS, 0, NULL);\r |
| 1390 | }\r | |
| 5c08e117 | 1391 | }\r |
| 5c08e117 | 1392 | }\r |
| 1393 | \r | |
| 1394 | /**\r | |
| 7caf72a9 | 1395 | This routine is kept for backward compatibility.\r |
| 5c08e117 | 1396 | **/\r |
| 1397 | VOID\r | |
| 1398 | EFIAPI\r | |
| 1399 | BdsLibSaveMemoryTypeInformation (\r | |
| 1400 | VOID\r | |
| 1401 | )\r | |
| 1402 | {\r | |
| 5c08e117 | 1403 | }\r |
| 1404 | \r | |
| 1405 | \r | |
| 337661bb | 1406 | /**\r |
| 1407 | Identify a user and, if authenticated, returns the current user profile handle.\r | |
| 1408 | \r | |
| 1409 | @param[out] User Point to user profile handle.\r | |
| 1410 | \r | |
| 1411 | @retval EFI_SUCCESS User is successfully identified, or user identification\r | |
| 1412 | is not supported.\r | |
| 1413 | @retval EFI_ACCESS_DENIED User is not successfully identified\r | |
| 1414 | \r | |
| 1415 | **/\r | |
| 1416 | EFI_STATUS\r | |
| 1417 | EFIAPI\r | |
| 1418 | BdsLibUserIdentify (\r | |
| 1419 | OUT EFI_USER_PROFILE_HANDLE *User\r | |
| 1420 | )\r | |
| 1421 | {\r | |
| 1422 | EFI_STATUS Status;\r | |
| 1423 | EFI_USER_MANAGER_PROTOCOL *Manager;\r | |
| 1424 | \r | |
| 1425 | Status = gBS->LocateProtocol (\r | |
| 1426 | &gEfiUserManagerProtocolGuid,\r | |
| 1427 | NULL,\r | |
| 1428 | (VOID **) &Manager\r | |
| 1429 | );\r | |
| 1430 | if (EFI_ERROR (Status)) {\r | |
| 1431 | return EFI_SUCCESS;\r | |
| 1432 | }\r | |
| 1433 | \r | |
| 1434 | return Manager->Identify (Manager, User);\r | |
| 1435 | }\r | |
| 1436 | \r |