diff options
Diffstat (limited to 'MdeModulePkg/Library/GenericBdsLib/BdsMisc.c')
| -rw-r--r-- | MdeModulePkg/Library/GenericBdsLib/BdsMisc.c | 1272 |
1 files changed, 0 insertions, 1272 deletions
diff --git a/MdeModulePkg/Library/GenericBdsLib/BdsMisc.c b/MdeModulePkg/Library/GenericBdsLib/BdsMisc.c deleted file mode 100644 index acf61eb..0000000 --- a/MdeModulePkg/Library/GenericBdsLib/BdsMisc.c +++ /dev/null @@ -1,1272 +0,0 @@ -/** @file
- Misc BDS library function
-
-Copyright (c) 2004 - 2008, Intel Corporation. <BR>
-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.
-
-**/
-
-#include "InternalBdsLib.h"
-
-
-#define MAX_STRING_LEN 200
-
-BOOLEAN mFeaturerSwitch = TRUE;
-BOOLEAN mResetRequired = FALSE;
-
-extern UINT16 gPlatformBootTimeOutDefault;
-
-
-/**
- Return the default value for system Timeout variable.
-
- @return Timeout value.
-
-**/
-UINT16
-EFIAPI
-BdsLibGetTimeout (
- VOID
- )
-{
- 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)) {
- //
- // According to UEFI 2.0 spec, it should treat the Timeout value as 0xffff
- // (default value PcdPlatformBootTimeOutDefault) when L"Timeout" variable is not present.
- // To make the current EFI Automatic-Test activity possible, platform can choose other value
- // for automatic boot when the variable is not present.
- //
- Timeout = PcdGet16 (PcdPlatformBootTimeOutDefault);
- }
-
- return Timeout;
-}
-
-/**
- The function will go through the driver option link list, load and start
- every driver the driver option device path point to.
-
- @param BdsDriverLists The header of the current driver option link list
-
-**/
-VOID
-EFIAPI
-BdsLibLoadDrivers (
- IN LIST_ENTRY *BdsDriverLists
- )
-{
- 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 ((DEBUG_INFO | DEBUG_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 ();
- }
-
-}
-
-/**
- Get the Option Number that does not used.
- Try to locate the specific option variable one by one utile find a free number.
-
- @param VariableName Indicate if the boot#### or driver#### option
-
- @return The Minimal Free Option Number
-
-**/
-UINT16
-BdsLibGetFreeOptionNumber (
- IN CHAR16 *VariableName
- )
-{
- UINTN Index;
- CHAR16 StrTemp[10];
- UINT16 *OptionBuffer;
- UINTN OptionSize;
-
- //
- // Try to find the minimum free number from 0, 1, 2, 3....
- //
- Index = 0;
- do {
- if (*VariableName == 'B') {
- UnicodeSPrint (StrTemp, sizeof (StrTemp), L"Boot%04x", Index);
- } else {
- UnicodeSPrint (StrTemp, sizeof (StrTemp), L"Driver%04x", Index);
- }
- //
- // try if the option number is used
- //
- OptionBuffer = BdsLibGetVariableAndSize (
- StrTemp,
- &gEfiGlobalVariableGuid,
- &OptionSize
- );
- if (OptionBuffer == NULL) {
- break;
- }
- Index++;
- } while (TRUE);
-
- return ((UINT16) Index);
-}
-
-
-/**
- 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.
-
- @param BdsOptionList The header of the boot#### or driver#### link list
- @param DevicePath The device path which the boot#### or driver####
- option present
- @param String The description of the boot#### or driver####
- @param VariableName Indicate if the boot#### or driver#### option
-
- @retval EFI_SUCCESS The boot#### or driver#### have been success
- registered
- @retval EFI_STATUS Return the status of gRT->SetVariable ().
-
-**/
-EFI_STATUS
-EFIAPI
-BdsLibRegisterNewOption (
- IN LIST_ENTRY *BdsOptionList,
- IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
- IN CHAR16 *String,
- IN CHAR16 *VariableName
- )
-{
- EFI_STATUS Status;
- UINTN Index;
- 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 UpdateDescription;
- UINT16 BootOrderEntry;
- UINTN OrderItemNum;
-
-
- OptionPtr = NULL;
- OptionSize = 0;
- TempPtr = NULL;
- OptionDevicePath = NULL;
- Description = NULL;
- OptionOrderPtr = NULL;
- UpdateDescription = FALSE;
- Status = EFI_SUCCESS;
- ZeroMem (OptionName, sizeof (OptionName));
-
- TempOptionSize = 0;
- TempOptionPtr = BdsLibGetVariableAndSize (
- VariableName,
- &gEfiGlobalVariableGuid,
- &TempOptionSize
- );
- //
- // Compare with current option variable if the previous option is set in global variable.
- //
- for (Index = 0; Index < TempOptionSize / sizeof (UINT16); Index++) {
- //
- // TempOptionPtr must not be NULL if we have non-zero TempOptionSize.
- //
- ASSERT (TempOptionPtr != NULL);
-
- 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
- );
- if (OptionPtr == NULL) {
- continue;
- }
- 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 (OptionDevicePath, DevicePath, GetDevicePathSize (OptionDevicePath)) == 0) {
- if (CompareMem (Description, String, StrSize (Description)) == 0) {
- //
- // Got the option, so just return
- //
- FreePool (OptionPtr);
- FreePool (TempOptionPtr);
- return EFI_SUCCESS;
- } else {
- //
- // Option description changed, need update.
- //
- UpdateDescription = TRUE;
- FreePool (OptionPtr);
- break;
- }
- }
-
- FreePool (OptionPtr);
- }
-
- OptionSize = sizeof (UINT32) + sizeof (UINT16) + StrSize (String);
- OptionSize += GetDevicePathSize (DevicePath);
- OptionPtr = AllocateZeroPool (OptionSize);
- ASSERT (OptionPtr != NULL);
-
- 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 (UpdateDescription) {
- //
- // The number in option#### to be updated.
- // In this case, we must have non-NULL TempOptionPtr.
- //
- ASSERT (TempOptionPtr != NULL);
- RegisterOptionNumber = TempOptionPtr[Index];
- } else {
- //
- // The new option#### number
- //
- RegisterOptionNumber = BdsLibGetFreeOptionNumber(VariableName);
- }
-
- 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
- );
- //
- // Return if only need to update a changed description or fail to set option.
- //
- if (EFI_ERROR (Status) || UpdateDescription) {
- FreePool (OptionPtr);
- if (TempOptionPtr != NULL) {
- FreePool (TempOptionPtr);
- }
- return Status;
- }
-
- FreePool (OptionPtr);
-
- //
- // Update the option order variable
- //
-
- //
- // If no option order
- //
- if (TempOptionSize == 0) {
- BootOrderEntry = 0;
- Status = gRT->SetVariable (
- VariableName,
- &gEfiGlobalVariableGuid,
- EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
- sizeof (UINT16),
- &BootOrderEntry
- );
- if (TempOptionPtr != NULL) {
- FreePool (TempOptionPtr);
- }
- return Status;
- }
-
- //
- // TempOptionPtr must not be NULL if TempOptionSize is not zero.
- //
- ASSERT (TempOptionPtr != NULL);
- //
- // Append the new option number to the original option order
- //
- OrderItemNum = (TempOptionSize / sizeof (UINT16)) + 1 ;
- OptionOrderPtr = AllocateZeroPool ( OrderItemNum * sizeof (UINT16));
- ASSERT (OptionOrderPtr!= NULL);
- CopyMem (OptionOrderPtr, TempOptionPtr, (OrderItemNum - 1) * sizeof (UINT16));
-
- OptionOrderPtr[Index] = RegisterOptionNumber;
-
- Status = gRT->SetVariable (
- VariableName,
- &gEfiGlobalVariableGuid,
- EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
- OrderItemNum * sizeof (UINT16),
- OptionOrderPtr
- );
- FreePool (TempOptionPtr);
- FreePool (OptionOrderPtr);
-
- return Status;
-}
-
-
-/**
- Build the boot#### or driver#### option from the VariableName, the
- build boot#### or driver#### will also be linked to BdsCommonOptionList.
-
- @param BdsCommonOptionList The header of the boot#### or driver#### option
- link list
- @param VariableName EFI Variable name indicate if it is boot#### or
- driver####
-
- @retval BDS_COMMON_OPTION Get the option just been created
- @retval NULL Failed to get the new option
-
-**/
-BDS_COMMON_OPTION *
-EFIAPI
-BdsLibVariableToOption (
- IN OUT LIST_ENTRY *BdsCommonOptionList,
- IN CHAR16 *VariableName
- )
-{
- 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;
- UINT8 NumOff;
- //
- // 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));
- ASSERT(Option->DevicePath != NULL);
- CopyMem (Option->DevicePath, DevicePath, GetDevicePathSize (DevicePath));
-
- Option->Attribute = Attribute;
- Option->Description = AllocateZeroPool (StrSize (Description));
- ASSERT(Option->Description != NULL);
- CopyMem (Option->Description, Description, StrSize (Description));
-
- Option->LoadOptions = AllocateZeroPool (LoadOptionsSize);
- ASSERT(Option->LoadOptions != NULL);
- CopyMem (Option->LoadOptions, LoadOptions, LoadOptionsSize);
- Option->LoadOptionsSize = LoadOptionsSize;
-
- //
- // Get the value from VariableName Unicode string
- // since the ISO standard assumes ASCII equivalent abbreviations, we can be safe in converting this
- // Unicode stream to ASCII without any loss in meaning.
- //
- if (*VariableName == 'B') {
- NumOff = sizeof (L"Boot")/sizeof(CHAR16) -1 ;
- Option->BootCurrent = (UINT16) ((VariableName[NumOff] -'0') * 0x1000);
- Option->BootCurrent = (UINT16) (Option->BootCurrent + ((VariableName[NumOff+1]-'0') * 0x100));
- Option->BootCurrent = (UINT16) (Option->BootCurrent + ((VariableName[NumOff+2]-'0') * 0x10));
- Option->BootCurrent = (UINT16) (Option->BootCurrent + ((VariableName[NumOff+3]-'0')));
- }
- //
- // Insert active entry to BdsDeviceList
- //
- if ((Option->Attribute & LOAD_OPTION_ACTIVE) == LOAD_OPTION_ACTIVE) {
- InsertTailList (BdsCommonOptionList, &Option->Link);
- FreePool (Variable);
- return Option;
- }
-
- FreePool (Variable);
- FreePool (Option);
- return NULL;
-
-}
-
-/**
- Process BootOrder, or DriverOrder variables, by calling
- BdsLibVariableToOption () for each UINT16 in the variables.
-
- @param BdsCommonOptionList The header of the option list base on variable
- VariableName
- @param VariableName EFI Variable name indicate the BootOrder or
- DriverOrder
-
- @retval EFI_SUCCESS Success create the boot option or driver option
- list
- @retval EFI_OUT_OF_RESOURCES Failed to get the boot option or driver option list
-
-**/
-EFI_STATUS
-EFIAPI
-BdsLibBuildOptionFromVar (
- IN LIST_ENTRY *BdsCommonOptionList,
- IN CHAR16 *VariableName
- )
-{
- 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);
- ASSERT (Option != NULL);
- Option->BootCurrent = OptionOrder[Index];
-
- }
-
- FreePool (OptionOrder);
-
- return EFI_SUCCESS;
-}
-
-/**
- Get boot mode by looking up configuration table and parsing HOB list
-
- @param BootMode Boot mode from PEI handoff HOB.
-
- @retval EFI_SUCCESS Successfully get boot mode
-
-**/
-EFI_STATUS
-EFIAPI
-BdsLibGetBootMode (
- OUT EFI_BOOT_MODE *BootMode
- )
-{
- *BootMode = GetBootModeHob ();
-
- return EFI_SUCCESS;
-}
-
-/**
- Read the EFI variable (VendorGuid/Name) and return a dynamically allocated
- buffer, and the size of the buffer. If failure return NULL.
-
- @param Name String part of EFI variable name
- @param VendorGuid GUID part of EFI variable name
- @param VariableSize Returns the size of the EFI variable that was read
-
- @return Dynamically allocated memory that contains a copy of the EFI variable
- Caller is responsible freeing the buffer.
- @retval NULL Variable was not read
-
-**/
-VOID *
-EFIAPI
-BdsLibGetVariableAndSize (
- IN CHAR16 *Name,
- IN EFI_GUID *VendorGuid,
- OUT UINTN *VariableSize
- )
-{
- 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;
-}
-
-/**
- Delete the instance in Multi which matches partly with Single instance
-
- @param Multi A pointer to a multi-instance device path data
- structure.
- @param Single A pointer to a single-instance device path data
- structure.
-
- @return This function will remove the device path instances in Multi which partly
- match with the Single, and return the result device path. If there is no
- remaining device path as a result, this function will return NULL.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-BdsLibDelPartMatchInstance (
- IN EFI_DEVICE_PATH_PROTOCOL *Multi,
- IN EFI_DEVICE_PATH_PROTOCOL *Single
- )
-{
- EFI_DEVICE_PATH_PROTOCOL *Instance;
- EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;
- EFI_DEVICE_PATH_PROTOCOL *TempNewDevicePath;
- UINTN InstanceSize;
- UINTN SingleDpSize;
- UINTN Size;
-
- NewDevicePath = NULL;
- TempNewDevicePath = NULL;
-
- if (Multi == NULL || Single == NULL) {
- return Multi;
- }
-
- Instance = GetNextDevicePathInstance (&Multi, &InstanceSize);
- SingleDpSize = GetDevicePathSize (Single) - END_DEVICE_PATH_LENGTH;
- InstanceSize -= END_DEVICE_PATH_LENGTH;
-
- while (Instance != NULL) {
-
- Size = (SingleDpSize < InstanceSize) ? SingleDpSize : InstanceSize;
-
- if ((CompareMem (Instance, Single, Size) != 0)) {
- //
- // Append the device path instance which does not match with Single
- //
- TempNewDevicePath = NewDevicePath;
- NewDevicePath = AppendDevicePathInstance (NewDevicePath, Instance);
- if (TempNewDevicePath != NULL) {
- FreePool(TempNewDevicePath);
- }
- }
- FreePool(Instance);
- Instance = GetNextDevicePathInstance (&Multi, &InstanceSize);
- InstanceSize -= END_DEVICE_PATH_LENGTH;
- }
-
- return NewDevicePath;
-}
-
-/**
- Function compares a device path data structure to that of all the nodes of a
- second device path instance.
-
- @param Multi A pointer to a multi-instance device path data
- structure.
- @param Single A pointer to a single-instance device path data
- structure.
-
- @retval TRUE If the Single device path is contained within Multi device path.
- @retval FALSE The Single device path is not match within Multi device path.
-
-**/
-BOOLEAN
-EFIAPI
-BdsLibMatchDevicePaths (
- IN EFI_DEVICE_PATH_PROTOCOL *Multi,
- IN EFI_DEVICE_PATH_PROTOCOL *Single
- )
-{
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- EFI_DEVICE_PATH_PROTOCOL *DevicePathInst;
- UINTN Size;
-
- if (Multi == NULL || Single == NULL) {
- return FALSE;
- }
-
- DevicePath = Multi;
- DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);
-
- //
- // 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 (CompareMem (Single, DevicePathInst, Size) == 0) {
- FreePool (DevicePathInst);
- return TRUE;
- }
-
- FreePool (DevicePathInst);
- DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);
- }
-
- return FALSE;
-}
-
-/**
- This function prints a series of strings.
-
- @param ConOut Pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
- @param ... A variable argument list containing series of
- strings, the last string must be NULL.
-
- @retval EFI_SUCCESS Success print out the string using ConOut.
- @retval EFI_STATUS Return the status of the ConOut->OutputString ().
-
-**/
-EFI_STATUS
-EFIAPI
-BdsLibOutputStrings (
- IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *ConOut,
- ...
- )
-{
- 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 != NULL) {
- break;
- }
-
- Status = ConOut->OutputString (ConOut, String);
-
- if (EFI_ERROR (Status)) {
- break;
- }
- }
-
- VA_END(Args);
- 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.
-//
-
-
-/**
- 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.
-
-**/
-VOID
-EFIAPI
-EnableResetReminderFeature (
- VOID
- )
-{
- mFeaturerSwitch = TRUE;
-}
-
-
-/**
- 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.
-
-**/
-VOID
-EFIAPI
-DisableResetReminderFeature (
- VOID
- )
-{
- mFeaturerSwitch = FALSE;
-}
-
-
-/**
- Record the info that a reset is required.
- A module boolean variable is used to record whether a reset is required.
-
-**/
-VOID
-EFIAPI
-EnableResetRequired (
- VOID
- )
-{
- mResetRequired = TRUE;
-}
-
-
-/**
- Record the info that no reset is required.
- A module boolean variable is used to record whether a reset is required.
-
-**/
-VOID
-EFIAPI
-DisableResetRequired (
- VOID
- )
-{
- mResetRequired = FALSE;
-}
-
-
-/**
- Check whether platform policy enable the reset reminder feature. The default is enabled.
-
-**/
-BOOLEAN
-EFIAPI
-IsResetReminderFeatureEnable (
- VOID
- )
-{
- return mFeaturerSwitch;
-}
-
-
-/**
- Check if user changed any option setting which needs a system reset to be effective.
-
-**/
-BOOLEAN
-EFIAPI
-IsResetRequired (
- VOID
- )
-{
- return mResetRequired;
-}
-
-
-/**
- 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.
-
-**/
-VOID
-EFIAPI
-SetupResetReminder (
- VOID
- )
-{
- EFI_INPUT_KEY Key;
- CHAR16 *StringBuffer1;
- CHAR16 *StringBuffer2;
-
-
- //
- //check any reset required change is applied? if yes, reset system
- //
- if (IsResetReminderFeatureEnable ()) {
- if (IsResetRequired ()) {
-
- 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 {
- IfrLibCreatePopUp (2, &Key, StringBuffer1, StringBuffer2);
- } while ((Key.ScanCode != SCAN_ESC) && (Key.UnicodeChar != CHAR_CARRIAGE_RETURN));
-
- FreePool (StringBuffer1);
- 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);
- }
- }
-}
-
-/**
- Get the headers (dos, image, optional header) from an image
-
- @param Device SimpleFileSystem device handle
- @param FileName File name for the image
- @param DosHeader Pointer to dos header
- @param Hdr The buffer in which to return the PE32, PE32+, or TE header.
-
- @retval EFI_SUCCESS Successfully get the machine type.
- @retval EFI_NOT_FOUND The file is not found.
- @retval EFI_LOAD_ERROR File is not a valid image file.
-
-**/
-EFI_STATUS
-EFIAPI
-BdsLibGetImageHeader (
- IN EFI_HANDLE Device,
- IN CHAR16 *FileName,
- OUT EFI_IMAGE_DOS_HEADER *DosHeader,
- OUT EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr
- )
-{
- EFI_STATUS Status;
- EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *Volume;
- EFI_FILE_HANDLE Root;
- EFI_FILE_HANDLE ThisFile;
- UINTN BufferSize;
- UINT64 FileSize;
- EFI_FILE_INFO *Info;
-
- Root = NULL;
- ThisFile = NULL;
- //
- // Handle the file system interface to the device
- //
- Status = gBS->HandleProtocol (
- Device,
- &gEfiSimpleFileSystemProtocolGuid,
- (VOID *) &Volume
- );
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- Status = Volume->OpenVolume (
- Volume,
- &Root
- );
- if (EFI_ERROR (Status)) {
- Root = NULL;
- goto Done;
- }
-
- Status = Root->Open (Root, &ThisFile, FileName, EFI_FILE_MODE_READ, 0);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
-
- //
- // Get file size
- //
- BufferSize = SIZE_OF_EFI_FILE_INFO + 200;
- do {
- Info = NULL;
- Status = gBS->AllocatePool (EfiBootServicesData, BufferSize, (VOID **) &Info);
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- Status = ThisFile->GetInfo (
- ThisFile,
- &gEfiFileInfoGuid,
- &BufferSize,
- Info
- );
- if (!EFI_ERROR (Status)) {
- break;
- }
- if (Status != EFI_BUFFER_TOO_SMALL) {
- FreePool (Info);
- goto Done;
- }
- FreePool (Info);
- } while (TRUE);
-
- FileSize = Info->FileSize;
- FreePool (Info);
-
- //
- // Read dos header
- //
- BufferSize = sizeof (EFI_IMAGE_DOS_HEADER);
- Status = ThisFile->Read (ThisFile, &BufferSize, DosHeader);
- if (EFI_ERROR (Status) ||
- BufferSize < sizeof (EFI_IMAGE_DOS_HEADER) ||
- FileSize <= DosHeader->e_lfanew ||
- DosHeader->e_magic != EFI_IMAGE_DOS_SIGNATURE) {
- Status = EFI_LOAD_ERROR;
- goto Done;
- }
-
- //
- // Move to PE signature
- //
- Status = ThisFile->SetPosition (ThisFile, DosHeader->e_lfanew);
- if (EFI_ERROR (Status)) {
- Status = EFI_LOAD_ERROR;
- goto Done;
- }
-
- //
- // Read and check PE signature
- //
- BufferSize = sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION);
- Status = ThisFile->Read (ThisFile, &BufferSize, Hdr.Pe32);
- if (EFI_ERROR (Status) ||
- BufferSize < sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION) ||
- Hdr.Pe32->Signature != EFI_IMAGE_NT_SIGNATURE) {
- Status = EFI_LOAD_ERROR;
- goto Done;
- }
-
- //
- // Check PE32 or PE32+ magic
- //
- if (Hdr.Pe32->OptionalHeader.Magic != EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC &&
- Hdr.Pe32->OptionalHeader.Magic != EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
- Status = EFI_LOAD_ERROR;
- goto Done;
- }
-
- Done:
- if (ThisFile != NULL) {
- ThisFile->Close (ThisFile);
- }
- if (Root != NULL) {
- Root->Close (Root);
- }
- return Status;
-}
-
-/**
-
- This routine is a notification function for legayc boot or exit boot
- service event. It will adjust the memory information for different
- memory type and save them into the variables for next boot.
-
-
- @param Event The event that triggered this notification function.
- @param Context Pointer to the notification functions context.
-
-**/
-VOID
-EFIAPI
-BdsSetMemoryTypeInformationVariable (
- EFI_EVENT Event,
- VOID *Context
- )
-{
- EFI_STATUS Status;
- EFI_MEMORY_TYPE_INFORMATION *PreviousMemoryTypeInformation;
- EFI_MEMORY_TYPE_INFORMATION *CurrentMemoryTypeInformation;
- UINTN VariableSize;
- BOOLEAN UpdateRequired;
- UINTN Index;
- UINTN Index1;
- UINT32 Previous;
- UINT32 Current;
- UINT32 Next;
- EFI_HOB_GUID_TYPE *GuidHob;
-
- UpdateRequired = FALSE;
-
- //
- // Retrieve the current memory usage statistics. If they are not found, then
- // no adjustments can be made to the Memory Type Information variable.
- //
- Status = EfiGetSystemConfigurationTable (
- &gEfiMemoryTypeInformationGuid,
- (VOID **) &CurrentMemoryTypeInformation
- );
- if (EFI_ERROR (Status) || CurrentMemoryTypeInformation == NULL) {
- return;
- }
-
- //
- // Get the Memory Type Information settings from Hob if they exist,
- // PEI is responsible for getting them from variable and build a Hob to save them.
- // If the previous Memory Type Information is not available, then set defaults
- //
- GuidHob = GetFirstGuidHob (&gEfiMemoryTypeInformationGuid);
- if (GuidHob == NULL) {
- //
- // If Platform has not built Memory Type Info into the Hob, just return.
- //
- return;
- }
- PreviousMemoryTypeInformation = GET_GUID_HOB_DATA (GuidHob);
- VariableSize = GET_GUID_HOB_DATA_SIZE (GuidHob);
-
- //
- // Use a heuristic to adjust the Memory Type Information for the next boot
- //
- for (Index = 0; PreviousMemoryTypeInformation[Index].Type != EfiMaxMemoryType; Index++) {
-
- Current = 0;
- for (Index1 = 0; CurrentMemoryTypeInformation[Index1].Type != EfiMaxMemoryType; Index1++) {
- if (PreviousMemoryTypeInformation[Index].Type == CurrentMemoryTypeInformation[Index1].Type) {
- Current = CurrentMemoryTypeInformation[Index1].NumberOfPages;
- break;
- }
- }
-
- if (CurrentMemoryTypeInformation[Index1].Type == EfiMaxMemoryType) {
- continue;
- }
-
- Previous = PreviousMemoryTypeInformation[Index].NumberOfPages;
-
- //
- // Write next varible to 125% * current and Inconsistent Memory Reserved across bootings may lead to S4 fail
- //
- if (Current > Previous) {
- Next = Current + (Current >> 2);
- } else {
- Next = Previous;
- }
- if (Next > 0 && Next < 4) {
- Next = 4;
- }
-
- if (Next != Previous) {
- PreviousMemoryTypeInformation[Index].NumberOfPages = Next;
- UpdateRequired = TRUE;
- }
-
- }
-
- //
- // If any changes were made to the Memory Type Information settings, then set the new variable value
- //
- if (UpdateRequired) {
- Status = gRT->SetVariable (
- EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME,
- &gEfiMemoryTypeInformationGuid,
- EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
- VariableSize,
- PreviousMemoryTypeInformation
- );
- }
-
- return;
-}
-
-/**
- This routine register a function to adjust the different type memory page number
- just before booting and save the updated info into the variable for next boot to use.
-
-**/
-VOID
-EFIAPI
-BdsLibSaveMemoryTypeInformation (
- VOID
- )
-{
- EFI_STATUS Status;
- EFI_EVENT ReadyToBootEvent;
-
- Status = EfiCreateEventReadyToBootEx (
- TPL_CALLBACK,
- BdsSetMemoryTypeInformationVariable,
- NULL,
- &ReadyToBootEvent
- );
- if (EFI_ERROR (Status)) {
- DEBUG ((DEBUG_ERROR,"Bds Set Memory Type Informationa Variable Fails\n"));
- }
-
-}
-
-
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