Clean up BDS lib to remove assembly files, remove R8Lib.h & R8Lib.c by applying Mde Lib.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5020 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 386 insertions, 396 deletions

diff --git a/MdeModulePkg/Library/GenericBdsLib/BdsConsole.c b/MdeModulePkg/Library/GenericBdsLib/BdsConsole.c
index 53766f98a8..b8dbffb665 100644
--- a/MdeModulePkg/Library/GenericBdsLib/BdsConsole.c
+++ b/MdeModulePkg/Library/GenericBdsLib/BdsConsole.c
@@ -1,396 +1,386 @@
-/** @file
-
-Copyright (c) 2004 - 2007, 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:
-
-  BdsConsole.c
-
-Abstract:
-
-  BDS Lib functions which contain all the code to connect console device
-
-
-**/
-
-#include "InternalBdsLib.h"
-
-BOOLEAN
-IsNvNeed (
-  IN CHAR16 *ConVarName
-  )
-{
-  CHAR16 *Ptr;
-
-  Ptr = ConVarName;
-
-  //
-  // If the variable includes "Dev" at last, we consider
-  // it does not support NV attribute.
-  //
-  while (*Ptr) {
-    Ptr++;
-  }
-
-  if ((*(Ptr-3) == 'D') && (*(Ptr-2) == 'e') && (*(Ptr-1) == 'v')) {
-    return FALSE;
-  } else {
-    return TRUE;
-  }
-}
-
-
-/**
-  This function update console variable based on ConVarName, it can
-  add or remove one specific console device path from the variable
-
-  @param  ConVarName               Console related variable name, ConIn, ConOut,
-                                   ErrOut.
-  @param  CustomizedConDevicePath  The console device path which will be added to
-                                   the console variable ConVarName, this parameter
-                                   can not be multi-instance.
-  @param  ExclusiveDevicePath      The console device path which will be removed
-                                   from the console variable ConVarName, this
-                                   parameter can not be multi-instance.
-
-  @retval EFI_UNSUPPORTED          Add or remove the same device path.
-  @retval EFI_SUCCESS              Success add or remove the device path from  the
-                                   console variable.
-
-**/
-EFI_STATUS
-BdsLibUpdateConsoleVariable (
-  IN  CHAR16                    *ConVarName,
-  IN  EFI_DEVICE_PATH_PROTOCOL  *CustomizedConDevicePath,
-  IN  EFI_DEVICE_PATH_PROTOCOL  *ExclusiveDevicePath
-  )
-{
-  EFI_DEVICE_PATH_PROTOCOL  *VarConsole;
-  UINTN                     DevicePathSize;
-  EFI_DEVICE_PATH_PROTOCOL  *NewDevicePath;
-  EFI_DEVICE_PATH_PROTOCOL  *TempNewDevicePath;
-  UINT32                    Attributes;
-
-  VarConsole      = NULL;
-  DevicePathSize  = 0;
-
-  //
-  // Notes: check the device path point, here should check
-  // with compare memory
-  //
-  if (CustomizedConDevicePath == ExclusiveDevicePath) {
-    return EFI_UNSUPPORTED;
-  }
-  //
-  // Delete the ExclusiveDevicePath from current default console
-  //
-  VarConsole = BdsLibGetVariableAndSize (
-                ConVarName,
-                &gEfiGlobalVariableGuid,
-                &DevicePathSize
-                );
-
-  //
-  // Initialize NewDevicePath
-  //
-  NewDevicePath  = VarConsole;
-
-  //
-  // If ExclusiveDevicePath is even the part of the instance in VarConsole, delete it.
-  // In the end, NewDevicePath is the final device path.
-  //
-  if (ExclusiveDevicePath != NULL && VarConsole != NULL) {
-      NewDevicePath = BdsLibDelPartMatchInstance (VarConsole, ExclusiveDevicePath);
-  }
-  //
-  // Try to append customized device path to NewDevicePath.
-  //
-  if (CustomizedConDevicePath != NULL) {
-    if (!BdsLibMatchDevicePaths (NewDevicePath, CustomizedConDevicePath)) {
-      //
-      // Check if there is part of CustomizedConDevicePath in NewDevicePath, delete it.
-      //
-      NewDevicePath = BdsLibDelPartMatchInstance (NewDevicePath, CustomizedConDevicePath);
-      //
-      // In the first check, the default console variable will be _ModuleEntryPoint,
-      // just append current customized device path
-      //
-      TempNewDevicePath = NewDevicePath;
-      NewDevicePath = AppendDevicePathInstance (NewDevicePath, CustomizedConDevicePath);
-      SafeFreePool(TempNewDevicePath);
-    }
-  }
-
-  //
-  // The attribute for ConInDev, ConOutDev and ErrOutDev does not include NV.
-  //
-  if (IsNvNeed(ConVarName)) {
-    //
-    // ConVarName has NV attribute.
-    //
-    Attributes = EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE;
-  } else {
-    //
-    // ConVarName does not have NV attribute.
-    //
-    Attributes = EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS;
-  }
-
-  //
-  // Finally, Update the variable of the default console by NewDevicePath
-  //
-  gRT->SetVariable (
-        ConVarName,
-        &gEfiGlobalVariableGuid,
-        Attributes,
-        GetDevicePathSize (NewDevicePath),
-        NewDevicePath
-        );
-
-  if (VarConsole == NewDevicePath) {
-    SafeFreePool(VarConsole);
-  } else {
-    SafeFreePool(VarConsole);
-    SafeFreePool(NewDevicePath);
-  }
-
-  return EFI_SUCCESS;
-
-}
-
-
-/**
-  Connect the console device base on the variable ConVarName, if
-  device path of the ConVarName is multi-instance device path, if
-  anyone of the instances is connected success, then this function
-  will return success.
-
-  @param  ConVarName               Console related variable name, ConIn, ConOut,
-                                   ErrOut.
-
-  @retval EFI_NOT_FOUND            There is not any console devices connected
-                                   success
-  @retval EFI_SUCCESS              Success connect any one instance of the console
-                                   device path base on the variable ConVarName.
-
-**/
-EFI_STATUS
-BdsLibConnectConsoleVariable (
-  IN  CHAR16                 *ConVarName
-  )
-{
-  EFI_STATUS                Status;
-  EFI_DEVICE_PATH_PROTOCOL  *StartDevicePath;
-  UINTN                     VariableSize;
-  EFI_DEVICE_PATH_PROTOCOL  *Instance;
-  EFI_DEVICE_PATH_PROTOCOL  *Next;
-  EFI_DEVICE_PATH_PROTOCOL  *CopyOfDevicePath;
-  UINTN                     Size;
-  BOOLEAN                   DeviceExist;
-
-  Status      = EFI_SUCCESS;
-  DeviceExist = FALSE;
-
-  //
-  // Check if the console variable exist
-  //
-  StartDevicePath = BdsLibGetVariableAndSize (
-                      ConVarName,
-                      &gEfiGlobalVariableGuid,
-                      &VariableSize
-                      );
-  if (StartDevicePath == NULL) {
-    return EFI_UNSUPPORTED;
-  }
-
-  CopyOfDevicePath = StartDevicePath;
-  do {
-    //
-    // Check every instance of the console variable
-    //
-    Instance  = GetNextDevicePathInstance (&CopyOfDevicePath, &Size);
-    Next      = Instance;
-    while (!IsDevicePathEndType (Next)) {
-      Next = NextDevicePathNode (Next);
-    }
-
-    SetDevicePathEndNode (Next);
-    //
-    // Check USB1.1 console
-    //
-    if ((DevicePathType (Instance) == MESSAGING_DEVICE_PATH) &&
-       ((DevicePathSubType (Instance) == MSG_USB_CLASS_DP)
-       || (DevicePathSubType (Instance) == MSG_USB_WWID_DP)
-       )) {
-      //
-      // Check the Usb console in Usb2.0 bus firstly, then Usb1.1 bus
-      //
-      Status = BdsLibConnectUsbDevByShortFormDP (PCI_CLASSC_PI_EHCI, Instance);
-      if (!EFI_ERROR (Status)) {
-        DeviceExist = TRUE;
-      }
-
-      Status = BdsLibConnectUsbDevByShortFormDP (PCI_CLASSC_PI_UHCI, Instance);
-      if (!EFI_ERROR (Status)) {
-        DeviceExist = TRUE;
-      }
-    } else {
-      //
-      // Connect the instance device path
-      //
-      Status = BdsLibConnectDevicePath (Instance);
-      if (EFI_ERROR (Status)) {
-        //
-        // Delete the instance from the console varialbe
-        //
-        BdsLibUpdateConsoleVariable (ConVarName, NULL, Instance);
-      } else {
-        DeviceExist = TRUE;
-      }
-    }
-    SafeFreePool(Instance);
-  } while (CopyOfDevicePath != NULL);
-
-  gBS->FreePool (StartDevicePath);
-
-  if (DeviceExist == FALSE) {
-    return EFI_NOT_FOUND;
-  }
-
-  return EFI_SUCCESS;
-}
-
-
-/**
-  This function will search every simpletxt devive in current system,
-  and make every simpletxt device as pertantial console device.
-
-  None
-
-  @return None
-
-**/
-VOID
-BdsLibConnectAllConsoles (
-  VOID
-  )
-{
-  UINTN                     Index;
-  EFI_DEVICE_PATH_PROTOCOL  *ConDevicePath;
-  UINTN                     HandleCount;
-  EFI_HANDLE                *HandleBuffer;
-
-  Index         = 0;
-  HandleCount   = 0;
-  HandleBuffer  = NULL;
-  ConDevicePath = NULL;
-
-  //
-  // Update all the console varables
-  //
-  gBS->LocateHandleBuffer (
-          ByProtocol,
-          &gEfiSimpleTextInProtocolGuid,
-          NULL,
-          &HandleCount,
-          &HandleBuffer
-          );
-  
-  for (Index = 0; Index < HandleCount; Index++) {
-    gBS->HandleProtocol (
-            HandleBuffer[Index],
-            &gEfiDevicePathProtocolGuid,
-            (VOID **) &ConDevicePath
-            );
-    BdsLibUpdateConsoleVariable (L"ConIn", ConDevicePath, NULL);
-  }
-
-  SafeFreePool(HandleBuffer);
-
-  gBS->LocateHandleBuffer (
-          ByProtocol,
-          &gEfiSimpleTextOutProtocolGuid,
-          NULL,
-          &HandleCount,
-          &HandleBuffer
-          );
-  for (Index = 0; Index < HandleCount; Index++) {
-    gBS->HandleProtocol (
-            HandleBuffer[Index],
-            &gEfiDevicePathProtocolGuid,
-            (VOID **) &ConDevicePath
-            );
-    BdsLibUpdateConsoleVariable (L"ConOut", ConDevicePath, NULL);
-    BdsLibUpdateConsoleVariable (L"ErrOut", ConDevicePath, NULL);
-  }
-
-  SafeFreePool(HandleBuffer);
-
-  //
-  // Connect all console variables
-  //
-  BdsLibConnectAllDefaultConsoles ();
-
-}
-
-
-/**
-  This function will connect console device base on the console
-  device variable ConIn, ConOut and ErrOut.
-
-  None
-
-  @retval EFI_SUCCESS              At least one of the ConIn and ConOut device have
-                                   been connected success.
-  @retval EFI_STATUS               Return the status of
-                                   BdsLibConnectConsoleVariable ().
-
-**/
-EFI_STATUS
-BdsLibConnectAllDefaultConsoles (
-  VOID
-  )
-{
-  EFI_STATUS                Status;
-
-  //
-  // Connect all default console variables
-  //
-
-  //
-  // It seems impossible not to have any ConOut device on platform,
-  // so we check the status here.
-  //
-  Status = BdsLibConnectConsoleVariable (L"ConOut");
-  if (EFI_ERROR (Status)) {
-    return Status;
-  }
-
-  //
-  // Insert the performance probe for Console Out
-  //
-  PERF_START (NULL, "ConOut", "BDS", 1);
-  PERF_END (NULL, "ConOut", "BDS", 0);
-
-  //
-  // Because possibly the platform is legacy free, in such case,
-  // ConIn devices (Serial Port and PS2 Keyboard ) does not exist,
-  // so we need not check the status.
-  //
-  BdsLibConnectConsoleVariable (L"ConIn");
-
-  //
-  // The _ModuleEntryPoint err out var is legal.
-  //
-  BdsLibConnectConsoleVariable (L"ErrOut");
-
-  return EFI_SUCCESS;
-
-}
+/** @file

+  BDS Lib functions which contain all the code to connect console device

+

+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"

+

+BOOLEAN

+IsNvNeed (

+  IN CHAR16 *ConVarName

+  )

+{

+  CHAR16 *Ptr;

+

+  Ptr = ConVarName;

+

+  //

+  // If the variable includes "Dev" at last, we consider

+  // it does not support NV attribute.

+  //

+  while (*Ptr) {

+    Ptr++;

+  }

+

+  if ((*(Ptr-3) == 'D') && (*(Ptr-2) == 'e') && (*(Ptr-1) == 'v')) {

+    return FALSE;

+  } else {

+    return TRUE;

+  }

+}

+

+

+/**

+  This function update console variable based on ConVarName, it can

+  add or remove one specific console device path from the variable

+

+  @param  ConVarName               Console related variable name, ConIn, ConOut,

+                                   ErrOut.

+  @param  CustomizedConDevicePath  The console device path which will be added to

+                                   the console variable ConVarName, this parameter

+                                   can not be multi-instance.

+  @param  ExclusiveDevicePath      The console device path which will be removed

+                                   from the console variable ConVarName, this

+                                   parameter can not be multi-instance.

+

+  @retval EFI_UNSUPPORTED          Add or remove the same device path.

+  @retval EFI_SUCCESS              Success add or remove the device path from  the

+                                   console variable.

+

+**/

+EFI_STATUS

+EFIAPI

+BdsLibUpdateConsoleVariable (

+  IN  CHAR16                    *ConVarName,

+  IN  EFI_DEVICE_PATH_PROTOCOL  *CustomizedConDevicePath,

+  IN  EFI_DEVICE_PATH_PROTOCOL  *ExclusiveDevicePath

+  )

+{

+  EFI_DEVICE_PATH_PROTOCOL  *VarConsole;

+  UINTN                     DevicePathSize;

+  EFI_DEVICE_PATH_PROTOCOL  *NewDevicePath;

+  EFI_DEVICE_PATH_PROTOCOL  *TempNewDevicePath;

+  UINT32                    Attributes;

+

+  VarConsole      = NULL;

+  DevicePathSize  = 0;

+

+  //

+  // Notes: check the device path point, here should check

+  // with compare memory

+  //

+  if (CustomizedConDevicePath == ExclusiveDevicePath) {

+    return EFI_UNSUPPORTED;

+  }

+  //

+  // Delete the ExclusiveDevicePath from current default console

+  //

+  VarConsole = BdsLibGetVariableAndSize (

+                ConVarName,

+                &gEfiGlobalVariableGuid,

+                &DevicePathSize

+                );

+

+  //

+  // Initialize NewDevicePath

+  //

+  NewDevicePath  = VarConsole;

+

+  //

+  // If ExclusiveDevicePath is even the part of the instance in VarConsole, delete it.

+  // In the end, NewDevicePath is the final device path.

+  //

+  if (ExclusiveDevicePath != NULL && VarConsole != NULL) {

+      NewDevicePath = BdsLibDelPartMatchInstance (VarConsole, ExclusiveDevicePath);

+  }

+  //

+  // Try to append customized device path to NewDevicePath.

+  //

+  if (CustomizedConDevicePath != NULL) {

+    if (!BdsLibMatchDevicePaths (NewDevicePath, CustomizedConDevicePath)) {

+      //

+      // Check if there is part of CustomizedConDevicePath in NewDevicePath, delete it.

+      //

+      NewDevicePath = BdsLibDelPartMatchInstance (NewDevicePath, CustomizedConDevicePath);

+      //

+      // In the first check, the default console variable will be _ModuleEntryPoint,

+      // just append current customized device path

+      //

+      TempNewDevicePath = NewDevicePath;

+      NewDevicePath = AppendDevicePathInstance (NewDevicePath, CustomizedConDevicePath);

+      SafeFreePool(TempNewDevicePath);

+    }

+  }

+

+  //

+  // The attribute for ConInDev, ConOutDev and ErrOutDev does not include NV.

+  //

+  if (IsNvNeed(ConVarName)) {

+    //

+    // ConVarName has NV attribute.

+    //

+    Attributes = EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE;

+  } else {

+    //

+    // ConVarName does not have NV attribute.

+    //

+    Attributes = EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS;

+  }

+

+  //

+  // Finally, Update the variable of the default console by NewDevicePath

+  //

+  gRT->SetVariable (

+        ConVarName,

+        &gEfiGlobalVariableGuid,

+        Attributes,

+        GetDevicePathSize (NewDevicePath),

+        NewDevicePath

+        );

+

+  if (VarConsole == NewDevicePath) {

+    SafeFreePool(VarConsole);

+  } else {

+    SafeFreePool(VarConsole);

+    SafeFreePool(NewDevicePath);

+  }

+

+  return EFI_SUCCESS;

+

+}

+

+

+/**

+  Connect the console device base on the variable ConVarName, if

+  device path of the ConVarName is multi-instance device path, if

+  anyone of the instances is connected success, then this function

+  will return success.

+

+  @param  ConVarName               Console related variable name, ConIn, ConOut,

+                                   ErrOut.

+

+  @retval EFI_NOT_FOUND            There is not any console devices connected

+                                   success

+  @retval EFI_SUCCESS              Success connect any one instance of the console

+                                   device path base on the variable ConVarName.

+

+**/

+EFI_STATUS

+EFIAPI

+BdsLibConnectConsoleVariable (

+  IN  CHAR16                 *ConVarName

+  )

+{

+  EFI_STATUS                Status;

+  EFI_DEVICE_PATH_PROTOCOL  *StartDevicePath;

+  UINTN                     VariableSize;

+  EFI_DEVICE_PATH_PROTOCOL  *Instance;

+  EFI_DEVICE_PATH_PROTOCOL  *Next;

+  EFI_DEVICE_PATH_PROTOCOL  *CopyOfDevicePath;

+  UINTN                     Size;

+  BOOLEAN                   DeviceExist;

+

+  Status      = EFI_SUCCESS;

+  DeviceExist = FALSE;

+

+  //

+  // Check if the console variable exist

+  //

+  StartDevicePath = BdsLibGetVariableAndSize (

+                      ConVarName,

+                      &gEfiGlobalVariableGuid,

+                      &VariableSize

+                      );

+  if (StartDevicePath == NULL) {

+    return EFI_UNSUPPORTED;

+  }

+

+  CopyOfDevicePath = StartDevicePath;

+  do {

+    //

+    // Check every instance of the console variable

+    //

+    Instance  = GetNextDevicePathInstance (&CopyOfDevicePath, &Size);

+    Next      = Instance;

+    while (!IsDevicePathEndType (Next)) {

+      Next = NextDevicePathNode (Next);

+    }

+

+    SetDevicePathEndNode (Next);

+    //

+    // Check USB1.1 console

+    //

+    if ((DevicePathType (Instance) == MESSAGING_DEVICE_PATH) &&

+       ((DevicePathSubType (Instance) == MSG_USB_CLASS_DP)

+       || (DevicePathSubType (Instance) == MSG_USB_WWID_DP)

+       )) {

+      //

+      // Check the Usb console in Usb2.0 bus firstly, then Usb1.1 bus

+      //

+      Status = BdsLibConnectUsbDevByShortFormDP (PCI_CLASSC_PI_EHCI, Instance);

+      if (!EFI_ERROR (Status)) {

+        DeviceExist = TRUE;

+      }

+

+      Status = BdsLibConnectUsbDevByShortFormDP (PCI_CLASSC_PI_UHCI, Instance);

+      if (!EFI_ERROR (Status)) {

+        DeviceExist = TRUE;

+      }

+    } else {

+      //

+      // Connect the instance device path

+      //

+      Status = BdsLibConnectDevicePath (Instance);

+      if (EFI_ERROR (Status)) {

+        //

+        // Delete the instance from the console varialbe

+        //

+        BdsLibUpdateConsoleVariable (ConVarName, NULL, Instance);

+      } else {

+        DeviceExist = TRUE;

+      }

+    }

+    SafeFreePool(Instance);

+  } while (CopyOfDevicePath != NULL);

+

+  gBS->FreePool (StartDevicePath);

+

+  if (DeviceExist == FALSE) {

+    return EFI_NOT_FOUND;

+  }

+

+  return EFI_SUCCESS;

+}

+

+

+/**

+  This function will search every simpletxt devive in current system,

+  and make every simpletxt device as pertantial console device.

+

+**/

+VOID

+EFIAPI

+BdsLibConnectAllConsoles (

+  VOID

+  )

+{

+  UINTN                     Index;

+  EFI_DEVICE_PATH_PROTOCOL  *ConDevicePath;

+  UINTN                     HandleCount;

+  EFI_HANDLE                *HandleBuffer;

+

+  Index         = 0;

+  HandleCount   = 0;

+  HandleBuffer  = NULL;

+  ConDevicePath = NULL;

+

+  //

+  // Update all the console varables

+  //

+  gBS->LocateHandleBuffer (

+          ByProtocol,

+          &gEfiSimpleTextInProtocolGuid,

+          NULL,

+          &HandleCount,

+          &HandleBuffer

+          );

+  

+  for (Index = 0; Index < HandleCount; Index++) {

+    gBS->HandleProtocol (

+            HandleBuffer[Index],

+            &gEfiDevicePathProtocolGuid,

+            (VOID **) &ConDevicePath

+            );

+    BdsLibUpdateConsoleVariable (L"ConIn", ConDevicePath, NULL);

+  }

+

+  SafeFreePool(HandleBuffer);

+

+  gBS->LocateHandleBuffer (

+          ByProtocol,

+          &gEfiSimpleTextOutProtocolGuid,

+          NULL,

+          &HandleCount,

+          &HandleBuffer

+          );

+  for (Index = 0; Index < HandleCount; Index++) {

+    gBS->HandleProtocol (

+            HandleBuffer[Index],

+            &gEfiDevicePathProtocolGuid,

+            (VOID **) &ConDevicePath

+            );

+    BdsLibUpdateConsoleVariable (L"ConOut", ConDevicePath, NULL);

+    BdsLibUpdateConsoleVariable (L"ErrOut", ConDevicePath, NULL);

+  }

+

+  SafeFreePool(HandleBuffer);

+

+  //

+  // Connect all console variables

+  //

+  BdsLibConnectAllDefaultConsoles ();

+

+}

+

+

+/**

+  This function will connect console device base on the console

+  device variable ConIn, ConOut and ErrOut.

+

+  @retval EFI_SUCCESS              At least one of the ConIn and ConOut device have

+                                   been connected success.

+  @retval EFI_STATUS               Return the status of

+                                   BdsLibConnectConsoleVariable ().

+

+**/

+EFI_STATUS

+EFIAPI

+BdsLibConnectAllDefaultConsoles (

+  VOID

+  )

+{

+  EFI_STATUS                Status;

+

+  //

+  // Connect all default console variables

+  //

+

+  //

+  // It seems impossible not to have any ConOut device on platform,

+  // so we check the status here.

+  //

+  Status = BdsLibConnectConsoleVariable (L"ConOut");

+  if (EFI_ERROR (Status)) {

+    return Status;

+  }

+

+  //

+  // Insert the performance probe for Console Out

+  //

+  PERF_START (NULL, "ConOut", "BDS", 1);

+  PERF_END (NULL, "ConOut", "BDS", 0);

+

+  //

+  // Because possibly the platform is legacy free, in such case,

+  // ConIn devices (Serial Port and PS2 Keyboard ) does not exist,

+  // so we need not check the status.

+  //

+  BdsLibConnectConsoleVariable (L"ConIn");

+

+  //

+  // The _ModuleEntryPoint err out var is legal.

+  //

+  BdsLibConnectConsoleVariable (L"ErrOut");

+

+  return EFI_SUCCESS;

+

+}