X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=EdkUnixPkg%2FLibrary%2FEdkGenericBdsLib%2FBdsMisc.c.orig;fp=EdkUnixPkg%2FLibrary%2FEdkGenericBdsLib%2FBdsMisc.c.orig;h=8f5544aa69a30005384ba880a49b9f88761309d4;hp=0000000000000000000000000000000000000000;hb=c9093a06e72ef16d2f3bd7ce0a2b9a172e9d048c;hpb=8ba7afaf2e9c682a5d17760e6dd5463b3a2b2d67 diff --git a/EdkUnixPkg/Library/EdkGenericBdsLib/BdsMisc.c.orig b/EdkUnixPkg/Library/EdkGenericBdsLib/BdsMisc.c.orig new file mode 100644 index 0000000000..8f5544aa69 --- /dev/null +++ b/EdkUnixPkg/Library/EdkGenericBdsLib/BdsMisc.c.orig @@ -0,0 +1,983 @@ +/*++ + +Copyright (c) 2006, Intel Corporation +All rights reserved. This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +Module Name: + + BdsMisc.c + +Abstract: + + Misc BDS library function + +--*/ + +#define MAX_STRING_LEN 200 +static BOOLEAN mFeaturerSwitch = TRUE; +static BOOLEAN mResetRequired = FALSE; +extern UINT16 gPlatformBootTimeOutDefault; + +UINT16 +BdsLibGetTimeout ( + VOID + ) +/*++ + +Routine Description: + + Return the default value for system Timeout variable. + +Arguments: + + None + +Returns: + + Timeout value. + +--*/ +{ + UINT16 Timeout; + UINTN Size; + EFI_STATUS Status; + + // + // Return Timeout variable or 0xffff if no valid + // Timeout variable exists. + // + Size = sizeof (UINT16); + Status = gRT->GetVariable (L"Timeout", &gEfiGlobalVariableGuid, NULL, &Size, &Timeout); + if (!EFI_ERROR (Status)) { + return Timeout; + } + // + // To make the current EFI Automatic-Test activity possible, just add + // following code to make AutoBoot enabled when this variable is not + // present. + // This code should be removed later. + // + Timeout = gPlatformBootTimeOutDefault; + + // + // Notes: Platform should set default variable if non exists on all error cases!!! + // + Status = gRT->SetVariable ( + L"Timeout", + &gEfiGlobalVariableGuid, + EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE, + sizeof (UINT16), + &Timeout + ); + return Timeout; +} + +VOID +BdsLibLoadDrivers ( + IN LIST_ENTRY *BdsDriverLists + ) +/*++ + +Routine Description: + + The function will go through the driver optoin link list, load and start + every driver the driver optoin device path point to. + +Arguments: + + BdsDriverLists - The header of the current driver option link list + +Returns: + + None + +--*/ +{ + EFI_STATUS Status; + LIST_ENTRY *Link; + BDS_COMMON_OPTION *Option; + EFI_HANDLE ImageHandle; + EFI_LOADED_IMAGE_PROTOCOL *ImageInfo; + UINTN ExitDataSize; + CHAR16 *ExitData; + BOOLEAN ReconnectAll; + + ReconnectAll = FALSE; + + // + // Process the driver option + // + for (Link = BdsDriverLists->ForwardLink; Link != BdsDriverLists; Link = Link->ForwardLink) { + Option = CR (Link, BDS_COMMON_OPTION, Link, BDS_LOAD_OPTION_SIGNATURE); + // + // If a load option is not marked as LOAD_OPTION_ACTIVE, + // the boot manager will not automatically load the option. + // + if (!IS_LOAD_OPTION_TYPE (Option->Attribute, LOAD_OPTION_ACTIVE)) { + continue; + } + // + // If a driver load option is marked as LOAD_OPTION_FORCE_RECONNECT, + // then all of the EFI drivers in the system will be disconnected and + // reconnected after the last driver load option is processed. + // + if (IS_LOAD_OPTION_TYPE (Option->Attribute, LOAD_OPTION_FORCE_RECONNECT)) { + ReconnectAll = TRUE; + } + // + // Make sure the driver path is connected. + // + BdsLibConnectDevicePath (Option->DevicePath); + + // + // Load and start the image that Driver#### describes + // + Status = gBS->LoadImage ( + FALSE, + mBdsImageHandle, + Option->DevicePath, + NULL, + 0, + &ImageHandle + ); + + if (!EFI_ERROR (Status)) { + gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, + (VOID **)&ImageInfo); + + // + // Verify whether this image is a driver, if not, + // exit it and continue to parse next load option + // + if (ImageInfo->ImageCodeType != EfiBootServicesCode && ImageInfo->ImageCodeType != EfiRuntimeServicesCode) { + gBS->Exit (ImageHandle, EFI_INVALID_PARAMETER, 0, NULL); + continue; + } + + if (Option->LoadOptionsSize != 0) { + ImageInfo->LoadOptionsSize = Option->LoadOptionsSize; + ImageInfo->LoadOptions = Option->LoadOptions; + } + // + // Before calling the image, enable the Watchdog Timer for + // the 5 Minute period + // + gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL); + + Status = gBS->StartImage (ImageHandle, &ExitDataSize, &ExitData); + DEBUG ((EFI_D_INFO | EFI_D_LOAD, "Driver Return Status = %r\n", Status)); + + // + // Clear the Watchdog Timer after the image returns + // + gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL); + } + } + // + // Process the LOAD_OPTION_FORCE_RECONNECT driver option + // + if (ReconnectAll) { + BdsLibDisconnectAllEfi (); + BdsLibConnectAll (); + } + +} + +EFI_STATUS +BdsLibRegisterNewOption ( + IN LIST_ENTRY *BdsOptionList, + IN EFI_DEVICE_PATH_PROTOCOL *DevicePath, + IN CHAR16 *String, + IN CHAR16 *VariableName + ) +/*++ + +Routine Description: + + This function will register the new boot#### or driver#### option base on + the VariableName. The new registered boot#### or driver#### will be linked + to BdsOptionList and also update to the VariableName. After the boot#### or + driver#### updated, the BootOrder or DriverOrder will also be updated. + +Arguments: + + BdsOptionList - The header of the boot#### or driver#### link list + + DevicePath - The device path which the boot#### + or driver#### option present + + String - The description of the boot#### or driver#### + + VariableName - Indicate if the boot#### or driver#### option + +Returns: + + EFI_SUCCESS - The boot#### or driver#### have been success registered + + EFI_STATUS - Return the status of gRT->SetVariable (). + +--*/ +{ + EFI_STATUS Status; + UINTN Index; + UINT16 MaxOptionNumber; + UINT16 RegisterOptionNumber; + UINT16 *TempOptionPtr; + UINTN TempOptionSize; + UINT16 *OptionOrderPtr; + VOID *OptionPtr; + UINTN OptionSize; + UINT8 *TempPtr; + EFI_DEVICE_PATH_PROTOCOL *OptionDevicePath; + CHAR16 *Description; + CHAR16 OptionName[10]; + BOOLEAN UpdateBootDevicePath; + + OptionPtr = NULL; + OptionSize = 0; + TempPtr = NULL; + OptionDevicePath = NULL; + Description = NULL; + MaxOptionNumber = 0; + OptionOrderPtr = NULL; + UpdateBootDevicePath = FALSE; + ZeroMem (OptionName, sizeof (OptionName)); + + TempOptionSize = 0; + TempOptionPtr = BdsLibGetVariableAndSize ( + VariableName, + &gEfiGlobalVariableGuid, + &TempOptionSize + ); + // + // Compare with current option variable + // + for (Index = 0; Index < TempOptionSize / sizeof (UINT16); Index++) { + // + // Got the max option#### number + // + if (MaxOptionNumber < TempOptionPtr[Index]) { + MaxOptionNumber = TempOptionPtr[Index]; + } + + if (*VariableName == 'B') { + UnicodeSPrint (OptionName, sizeof (OptionName), L"Boot%04x", TempOptionPtr[Index]); + } else { + UnicodeSPrint (OptionName, sizeof (OptionName), L"Driver%04x", TempOptionPtr[Index]); + } + + OptionPtr = BdsLibGetVariableAndSize ( + OptionName, + &gEfiGlobalVariableGuid, + &OptionSize + ); + TempPtr = OptionPtr; + TempPtr += sizeof (UINT32) + sizeof (UINT16); + Description = (CHAR16 *) TempPtr; + TempPtr += StrSize ((CHAR16 *) TempPtr); + OptionDevicePath = (EFI_DEVICE_PATH_PROTOCOL *) TempPtr; + + // + // Notes: the description may will change base on the GetStringToken + // + if (CompareMem (Description, String, StrSize (Description)) == 0) { + if (CompareMem (OptionDevicePath, DevicePath, GetDevicePathSize (OptionDevicePath)) == 0) { + // + // Got the option, so just return + // + gBS->FreePool (OptionPtr); + gBS->FreePool (TempOptionPtr); + return EFI_SUCCESS; + } else { + // + // Boot device path changed, need update. + // + UpdateBootDevicePath = TRUE; + break; + } + } + + gBS->FreePool (OptionPtr); + } + + OptionSize = sizeof (UINT32) + sizeof (UINT16) + StrSize (String) + GetDevicePathSize (DevicePath); + OptionPtr = AllocateZeroPool (OptionSize); + TempPtr = OptionPtr; + *(UINT32 *) TempPtr = LOAD_OPTION_ACTIVE; + TempPtr += sizeof (UINT32); + *(UINT16 *) TempPtr = (UINT16) GetDevicePathSize (DevicePath); + TempPtr += sizeof (UINT16); + CopyMem (TempPtr, String, StrSize (String)); + TempPtr += StrSize (String); + CopyMem (TempPtr, DevicePath, GetDevicePathSize (DevicePath)); + + if (UpdateBootDevicePath) { + // + // The number in option#### to be updated + // + RegisterOptionNumber = TempOptionPtr[Index]; + } else { + // + // The new option#### number + // + RegisterOptionNumber = MaxOptionNumber + 1; + } + + if (*VariableName == 'B') { + UnicodeSPrint (OptionName, sizeof (OptionName), L"Boot%04x", RegisterOptionNumber); + } else { + UnicodeSPrint (OptionName, sizeof (OptionName), L"Driver%04x", RegisterOptionNumber); + } + + Status = gRT->SetVariable ( + OptionName, + &gEfiGlobalVariableGuid, + EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE, + OptionSize, + OptionPtr + ); + if (EFI_ERROR (Status) || UpdateBootDevicePath) { + gBS->FreePool (OptionPtr); + gBS->FreePool (TempOptionPtr); + return Status; + } + + gBS->FreePool (OptionPtr); + + // + // Update the option order variable + // + OptionOrderPtr = AllocateZeroPool ((Index + 1) * sizeof (UINT16)); + CopyMem (OptionOrderPtr, TempOptionPtr, Index * sizeof (UINT16)); + OptionOrderPtr[Index] = RegisterOptionNumber; + Status = gRT->SetVariable ( + VariableName, + &gEfiGlobalVariableGuid, + EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE, + (Index + 1) * sizeof (UINT16), + OptionOrderPtr + ); + if (EFI_ERROR (Status)) { + gBS->FreePool (TempOptionPtr); + gBS->FreePool (OptionOrderPtr); + return Status; + } + + gBS->FreePool (TempOptionPtr); + gBS->FreePool (OptionOrderPtr); + + return EFI_SUCCESS; +} + +BDS_COMMON_OPTION * +BdsLibVariableToOption ( + IN OUT LIST_ENTRY *BdsCommonOptionList, + IN CHAR16 *VariableName + ) +/*++ + +Routine Description: + + Build the boot#### or driver#### option from the VariableName, the + build boot#### or driver#### will also be linked to BdsCommonOptionList + +Arguments: + + BdsCommonOptionList - The header of the boot#### or driver#### option link list + + VariableName - EFI Variable name indicate if it is boot#### or driver#### + +Returns: + + BDS_COMMON_OPTION - Get the option just been created + + NULL - Failed to get the new option + +--*/ +{ + UINT32 Attribute; + UINT16 FilePathSize; + UINT8 *Variable; + UINT8 *TempPtr; + UINTN VariableSize; + EFI_DEVICE_PATH_PROTOCOL *DevicePath; + BDS_COMMON_OPTION *Option; + VOID *LoadOptions; + UINT32 LoadOptionsSize; + CHAR16 *Description; + + // + // Read the variable. We will never free this data. + // + Variable = BdsLibGetVariableAndSize ( + VariableName, + &gEfiGlobalVariableGuid, + &VariableSize + ); + if (Variable == NULL) { + return NULL; + } + // + // Notes: careful defined the variable of Boot#### or + // Driver####, consider use some macro to abstract the code + // + // + // Get the option attribute + // + TempPtr = Variable; + Attribute = *(UINT32 *) Variable; + TempPtr += sizeof (UINT32); + + // + // Get the option's device path size + // + FilePathSize = *(UINT16 *) TempPtr; + TempPtr += sizeof (UINT16); + + // + // Get the option's description string + // + Description = (CHAR16 *) TempPtr; + + // + // Get the option's description string size + // + TempPtr += StrSize ((CHAR16 *) TempPtr); + + // + // Get the option's device path + // + DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) TempPtr; + TempPtr += FilePathSize; + + LoadOptions = TempPtr; + LoadOptionsSize = (UINT32) (VariableSize - (UINTN) (TempPtr - Variable)); + + // + // The Console variables may have multiple device paths, so make + // an Entry for each one. + // + Option = AllocateZeroPool (sizeof (BDS_COMMON_OPTION)); + if (Option == NULL) { + return NULL; + } + + Option->Signature = BDS_LOAD_OPTION_SIGNATURE; + Option->DevicePath = AllocateZeroPool (GetDevicePathSize (DevicePath)); + CopyMem (Option->DevicePath, DevicePath, GetDevicePathSize (DevicePath)); + Option->Attribute = Attribute; + Option->Description = AllocateZeroPool (StrSize (Description)); + CopyMem (Option->Description, Description, StrSize (Description)); + Option->LoadOptions = AllocateZeroPool (LoadOptionsSize); + CopyMem (Option->LoadOptions, LoadOptions, LoadOptionsSize); + Option->LoadOptionsSize = LoadOptionsSize; + + // + // Insert active entry to BdsDeviceList + // + if ((Option->Attribute & LOAD_OPTION_ACTIVE) == LOAD_OPTION_ACTIVE) { + InsertTailList (BdsCommonOptionList, &Option->Link); + gBS->FreePool (Variable); + return Option; + } + + gBS->FreePool (Variable); + gBS->FreePool (Option); + return NULL; + +} + +EFI_STATUS +BdsLibBuildOptionFromVar ( + IN LIST_ENTRY *BdsCommonOptionList, + IN CHAR16 *VariableName + ) +/*++ + +Routine Description: + + Process BootOrder, or DriverOrder variables, by calling + BdsLibVariableToOption () for each UINT16 in the variables. + +Arguments: + + BdsCommonOptionList - The header of the option list base on variable + VariableName + + VariableName - EFI Variable name indicate the BootOrder or DriverOrder + +Returns: + + EFI_SUCCESS - Success create the boot option or driver option list + + EFI_OUT_OF_RESOURCES - Failed to get the boot option or driver option list + +--*/ +{ + UINT16 *OptionOrder; + UINTN OptionOrderSize; + UINTN Index; + BDS_COMMON_OPTION *Option; + CHAR16 OptionName[20]; + + // + // Zero Buffer in order to get all BOOT#### variables + // + ZeroMem (OptionName, sizeof (OptionName)); + + // + // Read the BootOrder, or DriverOrder variable. + // + OptionOrder = BdsLibGetVariableAndSize ( + VariableName, + &gEfiGlobalVariableGuid, + &OptionOrderSize + ); + if (OptionOrder == NULL) { + return EFI_OUT_OF_RESOURCES; + } + + for (Index = 0; Index < OptionOrderSize / sizeof (UINT16); Index++) { + if (*VariableName == 'B') { + UnicodeSPrint (OptionName, sizeof (OptionName), L"Boot%04x", OptionOrder[Index]); + } else { + UnicodeSPrint (OptionName, sizeof (OptionName), L"Driver%04x", OptionOrder[Index]); + } + Option = BdsLibVariableToOption (BdsCommonOptionList, OptionName); + Option->BootCurrent = OptionOrder[Index]; + + } + + gBS->FreePool (OptionOrder); + + return EFI_SUCCESS; +} + +EFI_STATUS +BdsLibGetBootMode ( + OUT EFI_BOOT_MODE *BootMode + ) +/*++ + +Routine Description: + + Get boot mode by looking up configuration table and parsing HOB list + +Arguments: + + BootMode - Boot mode from PEI handoff HOB. + +Returns: + + EFI_SUCCESS - Successfully get boot mode + + EFI_NOT_FOUND - Can not find the current system boot mode + +--*/ +{ + EFI_HOB_HANDOFF_INFO_TABLE *HobList; + + HobList = GetHobList (); + ASSERT (HobList->Header.HobType == EFI_HOB_TYPE_HANDOFF); + *BootMode = HobList->BootMode; + + return EFI_SUCCESS; +} + +VOID * +BdsLibGetVariableAndSize ( + IN CHAR16 *Name, + IN EFI_GUID *VendorGuid, + OUT UINTN *VariableSize + ) +/*++ + +Routine Description: + + Read the EFI variable (VendorGuid/Name) and return a dynamically allocated + buffer, and the size of the buffer. If failure return NULL. + +Arguments: + + Name - String part of EFI variable name + + VendorGuid - GUID part of EFI variable name + + VariableSize - Returns the size of the EFI variable that was read + +Returns: + + Dynamically allocated memory that contains a copy of the EFI variable. + Caller is responsible freeing the buffer. + + NULL - Variable was not read + +--*/ +{ + EFI_STATUS Status; + UINTN BufferSize; + VOID *Buffer; + + Buffer = NULL; + + // + // Pass in a zero size buffer to find the required buffer size. + // + BufferSize = 0; + Status = gRT->GetVariable (Name, VendorGuid, NULL, &BufferSize, Buffer); + if (Status == EFI_BUFFER_TOO_SMALL) { + // + // Allocate the buffer to return + // + Buffer = AllocateZeroPool (BufferSize); + if (Buffer == NULL) { + return NULL; + } + // + // Read variable into the allocated buffer. + // + Status = gRT->GetVariable (Name, VendorGuid, NULL, &BufferSize, Buffer); + if (EFI_ERROR (Status)) { + BufferSize = 0; + } + } + + *VariableSize = BufferSize; + return Buffer; +} + +BOOLEAN +BdsLibMatchDevicePaths ( + IN EFI_DEVICE_PATH_PROTOCOL *Multi, + IN EFI_DEVICE_PATH_PROTOCOL *Single + ) +/*++ + +Routine Description: + + Function compares a device path data structure to that of all the nodes of a + second device path instance. + +Arguments: + + Multi - A pointer to a multi-instance device path data structure. + + Single - A pointer to a single-instance device path data structure. + +Returns: + + TRUE - If the Single is contained within Multi + + FALSE - The Single is not match within Multi + + +--*/ +{ + EFI_DEVICE_PATH_PROTOCOL *DevicePath; + EFI_DEVICE_PATH_PROTOCOL *DevicePathInst; + UINTN Size; + + if (!Multi || !Single) { + return FALSE; + } + + DevicePath = Multi; + DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size); + Size -= sizeof (EFI_DEVICE_PATH_PROTOCOL); + + // + // Search for the match of 'Single' in 'Multi' + // + while (DevicePathInst != NULL) { + // + // If the single device path is found in multiple device paths, + // return success + // + if (Size == 0) { + return FALSE; + } + + if (CompareMem (Single, DevicePathInst, Size) == 0) { + return TRUE; + } + + gBS->FreePool (DevicePathInst); + DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size); + Size -= sizeof (EFI_DEVICE_PATH_PROTOCOL); + } + + return FALSE; +} + +EFI_STATUS +BdsLibOutputStrings ( + IN EFI_SIMPLE_TEXT_OUT_PROTOCOL *ConOut, + ... + ) +/*++ + +Routine Description: + + This function prints a series of strings. + +Arguments: + + ConOut - Pointer to EFI_SIMPLE_TEXT_OUT_PROTOCOL + + ... - A variable argument list containing series of strings, + the last string must be NULL. + +Returns: + + EFI_SUCCESS - Success print out the string using ConOut. + + EFI_STATUS - Return the status of the ConOut->OutputString (). + +--*/ +{ + VA_LIST args; + EFI_STATUS Status; + CHAR16 *String; + + Status = EFI_SUCCESS; + VA_START (args, ConOut); + + while (!EFI_ERROR (Status)) { + // + // If String is NULL, then it's the end of the list + // + String = VA_ARG (args, CHAR16 *); + if (!String) { + break; + } + + Status = ConOut->OutputString (ConOut, String); + + if (EFI_ERROR (Status)) { + break; + } + } + + return Status; +} + +// +// Following are BDS Lib functions which contain all the code about setup browser reset reminder feature. +// Setup Browser reset reminder feature is that an reset reminder will be given before user leaves the setup browser if +// user change any option setting which needs a reset to be effective, and the reset will be applied according to the user selection. +// + +VOID +EnableResetReminderFeature ( + VOID + ) +/*++ + +Routine Description: + + Enable the setup browser reset reminder feature. + This routine is used in platform tip. If the platform policy need the feature, use the routine to enable it. + +Arguments: + + VOID + +Returns: + + VOID + +--*/ +{ + mFeaturerSwitch = TRUE; +} + +VOID +DisableResetReminderFeature ( + VOID + ) +/*++ + +Routine Description: + + Disable the setup browser reset reminder feature. + This routine is used in platform tip. If the platform policy do not want the feature, use the routine to disable it. + +Arguments: + + VOID + +Returns: + + VOID + +--*/ +{ + mFeaturerSwitch = FALSE; +} + +VOID +EnableResetRequired ( + VOID + ) +/*++ + +Routine Description: + + Record the info that a reset is required. + A module boolean variable is used to record whether a reset is required. + +Arguments: + + VOID + +Returns: + + VOID + +--*/ +{ + mResetRequired = TRUE; +} + +VOID +DisableResetRequired ( + VOID + ) +/*++ + +Routine Description: + + Record the info that no reset is required. + A module boolean variable is used to record whether a reset is required. + +Arguments: + + VOID + +Returns: + + VOID + +--*/ +{ + mResetRequired = FALSE; +} + +BOOLEAN +IsResetReminderFeatureEnable ( + VOID + ) +/*++ + +Routine Description: + + Check whether platform policy enable the reset reminder feature. The default is enabled. + +Arguments: + + VOID + +Returns: + + VOID + +--*/ +{ + return mFeaturerSwitch; +} + +BOOLEAN +IsResetRequired ( + VOID + ) +/*++ + +Routine Description: + + Check if user changed any option setting which needs a system reset to be effective. + +Arguments: + + VOID + +Returns: + + VOID + +--*/ +{ + return mResetRequired; +} + +VOID +SetupResetReminder ( + VOID + ) +/*++ + +Routine Description: + + Check whether a reset is needed, and finish the reset reminder feature. + If a reset is needed, Popup a menu to notice user, and finish the feature + according to the user selection. + +Arguments: + + VOID + +Returns: + + VOID + +--*/ +{ + EFI_STATUS Status; + EFI_FORM_BROWSER_PROTOCOL *Browser; + EFI_INPUT_KEY Key; + CHAR16 *StringBuffer1; + CHAR16 *StringBuffer2; + + + // + //check any reset required change is applied? if yes, reset system + // + if (IsResetReminderFeatureEnable ()) { + if (IsResetRequired ()) { + + Status = gBS->LocateProtocol ( + &gEfiFormBrowserProtocolGuid, + NULL, + (VOID **)&Browser + ); + + StringBuffer1 = AllocateZeroPool (MAX_STRING_LEN * sizeof (CHAR16)); + ASSERT (StringBuffer1 != NULL); + StringBuffer2 = AllocateZeroPool (MAX_STRING_LEN * sizeof (CHAR16)); + ASSERT (StringBuffer2 != NULL); + StrCpy (StringBuffer1, L"Configuration changed. Reset to apply it Now ? "); + StrCpy (StringBuffer2, L"Enter (YES) / Esc (NO)"); + // + // Popup a menu to notice user + // + do { + Browser->CreatePopUp (2, TRUE, 0, NULL, &Key, StringBuffer1, StringBuffer2); + } while ((Key.ScanCode != SCAN_ESC) && (Key.UnicodeChar != CHAR_CARRIAGE_RETURN)); + + gBS->FreePool (StringBuffer1); + gBS->FreePool (StringBuffer2); + // + // If the user hits the YES Response key, reset + // + if ((Key.UnicodeChar == CHAR_CARRIAGE_RETURN)) { + gRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL); + } + gST->ConOut->ClearScreen (gST->ConOut); + } + } +}