+ Remove all MemoryMapped(...)/FvFile(...) and Fv(...)/FvFile(...) boot options\r
+ whose device paths do not resolve exactly to an FvFile in the system.\r
+\r
+ This removes any boot options that point to binaries built into the firmware\r
+ and have become stale due to any of the following:\r
+ - FvMain's base address or size changed (historical),\r
+ - FvMain's FvNameGuid changed,\r
+ - the FILE_GUID of the pointed-to binary changed,\r
+ - the referenced binary is no longer built into the firmware.\r
+\r
+ EfiBootManagerFindLoadOption() used in PlatformRegisterFvBootOption() only\r
+ avoids exact duplicates.\r
+**/\r
+STATIC\r
+VOID\r
+RemoveStaleFvFileOptions (\r
+ VOID\r
+ )\r
+{\r
+ EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r
+ UINTN BootOptionCount;\r
+ UINTN Index;\r
+\r
+ BootOptions = EfiBootManagerGetLoadOptions (&BootOptionCount,\r
+ LoadOptionTypeBoot);\r
+\r
+ for (Index = 0; Index < BootOptionCount; ++Index) {\r
+ EFI_DEVICE_PATH_PROTOCOL *Node1, *Node2, *SearchNode;\r
+ EFI_STATUS Status;\r
+ EFI_HANDLE FvHandle;\r
+\r
+ //\r
+ // If the device path starts with neither MemoryMapped(...) nor Fv(...),\r
+ // then keep the boot option.\r
+ //\r
+ Node1 = BootOptions[Index].FilePath;\r
+ if (!(DevicePathType (Node1) == HARDWARE_DEVICE_PATH &&\r
+ DevicePathSubType (Node1) == HW_MEMMAP_DP) &&\r
+ !(DevicePathType (Node1) == MEDIA_DEVICE_PATH &&\r
+ DevicePathSubType (Node1) == MEDIA_PIWG_FW_VOL_DP)) {\r
+ continue;\r
+ }\r
+\r
+ //\r
+ // If the second device path node is not FvFile(...), then keep the boot\r
+ // option.\r
+ //\r
+ Node2 = NextDevicePathNode (Node1);\r
+ if (DevicePathType (Node2) != MEDIA_DEVICE_PATH ||\r
+ DevicePathSubType (Node2) != MEDIA_PIWG_FW_FILE_DP) {\r
+ continue;\r
+ }\r
+\r
+ //\r
+ // Locate the Firmware Volume2 protocol instance that is denoted by the\r
+ // boot option. If this lookup fails (i.e., the boot option references a\r
+ // firmware volume that doesn't exist), then we'll proceed to delete the\r
+ // boot option.\r
+ //\r
+ SearchNode = Node1;\r
+ Status = gBS->LocateDevicePath (&gEfiFirmwareVolume2ProtocolGuid,\r
+ &SearchNode, &FvHandle);\r
+\r
+ if (!EFI_ERROR (Status)) {\r
+ //\r
+ // The firmware volume was found; now let's see if it contains the FvFile\r
+ // identified by GUID.\r
+ //\r
+ EFI_FIRMWARE_VOLUME2_PROTOCOL *FvProtocol;\r
+ MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *FvFileNode;\r
+ UINTN BufferSize;\r
+ EFI_FV_FILETYPE FoundType;\r
+ EFI_FV_FILE_ATTRIBUTES FileAttributes;\r
+ UINT32 AuthenticationStatus;\r
+\r
+ Status = gBS->HandleProtocol (FvHandle, &gEfiFirmwareVolume2ProtocolGuid,\r
+ (VOID **)&FvProtocol);\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ FvFileNode = (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *)Node2;\r
+ //\r
+ // Buffer==NULL means we request metadata only: BufferSize, FoundType,\r
+ // FileAttributes.\r
+ //\r
+ Status = FvProtocol->ReadFile (\r
+ FvProtocol,\r
+ &FvFileNode->FvFileName, // NameGuid\r
+ NULL, // Buffer\r
+ &BufferSize,\r
+ &FoundType,\r
+ &FileAttributes,\r
+ &AuthenticationStatus\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ //\r
+ // The FvFile was found. Keep the boot option.\r
+ //\r
+ continue;\r
+ }\r
+ }\r
+\r
+ //\r
+ // Delete the boot option.\r
+ //\r
+ Status = EfiBootManagerDeleteLoadOptionVariable (\r
+ BootOptions[Index].OptionNumber, LoadOptionTypeBoot);\r
+ DEBUG_CODE (\r
+ CHAR16 *DevicePathString;\r
+\r
+ DevicePathString = ConvertDevicePathToText(BootOptions[Index].FilePath,\r
+ FALSE, FALSE);\r
+ DEBUG ((\r
+ EFI_ERROR (Status) ? EFI_D_WARN : EFI_D_VERBOSE,\r
+ "%a: removing stale Boot#%04x %s: %r\n",\r
+ __FUNCTION__,\r
+ (UINT32)BootOptions[Index].OptionNumber,\r
+ DevicePathString == NULL ? L"<unavailable>" : DevicePathString,\r
+ Status\r
+ ));\r
+ if (DevicePathString != NULL) {\r
+ FreePool (DevicePathString);\r
+ }\r
+ );\r
+ }\r
+\r
+ EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);\r
+}\r
+\r
+\r
+STATIC\r
+VOID\r
+PlatformRegisterOptionsAndKeys (\r
+ VOID\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_INPUT_KEY Enter;\r
+ EFI_INPUT_KEY F2;\r
+ EFI_INPUT_KEY Esc;\r
+ EFI_BOOT_MANAGER_LOAD_OPTION BootOption;\r
+\r
+ //\r
+ // Register ENTER as CONTINUE key\r
+ //\r
+ Enter.ScanCode = SCAN_NULL;\r
+ Enter.UnicodeChar = CHAR_CARRIAGE_RETURN;\r
+ Status = EfiBootManagerRegisterContinueKeyOption (0, &Enter, NULL);\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ //\r
+ // Map F2 and ESC to Boot Manager Menu\r
+ //\r
+ F2.ScanCode = SCAN_F2;\r
+ F2.UnicodeChar = CHAR_NULL;\r
+ Esc.ScanCode = SCAN_ESC;\r
+ Esc.UnicodeChar = CHAR_NULL;\r
+ Status = EfiBootManagerGetBootManagerMenu (&BootOption);\r
+ ASSERT_EFI_ERROR (Status);\r
+ Status = EfiBootManagerAddKeyOptionVariable (\r
+ NULL, (UINT16) BootOption.OptionNumber, 0, &F2, NULL\r
+ );\r
+ ASSERT (Status == EFI_SUCCESS || Status == EFI_ALREADY_STARTED);\r
+ Status = EfiBootManagerAddKeyOptionVariable (\r
+ NULL, (UINT16) BootOption.OptionNumber, 0, &Esc, NULL\r
+ );\r
+ ASSERT (Status == EFI_SUCCESS || Status == EFI_ALREADY_STARTED);\r
+}\r
+\r
+\r
+//\r
+// BDS Platform Functions\r
+//\r
+/**\r
+ Do the platform init, can be customized by OEM/IBV\r
+ Possible things that can be done in PlatformBootManagerBeforeConsole:\r
+ > Update console variable: 1. include hot-plug devices;\r
+ > 2. Clear ConIn and add SOL for AMT\r
+ > Register new Driver#### or Boot####\r
+ > Register new Key####: e.g.: F12\r
+ > Signal ReadyToLock event\r
+ > Authentication action: 1. connect Auth devices;\r
+ > 2. Identify auto logon user.\r
projects / mirror_edk2.git / blobdiff