[patch 2/3] MdeModulePkg/BdsDxe: Remove useless Pref Code

[Dandan Bi <dandan.bi@intel.com>]

Our new performance infrastructure can support to dump performance
date form ACPI table in OS. So we can remove the old pref code to
write performance data to OS.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
---
 MdeModulePkg/Universal/BdsDxe/Bds.h      |  3 +-
 MdeModulePkg/Universal/BdsDxe/BdsDxe.inf |  3 +-
 MdeModulePkg/Universal/BdsDxe/BdsEntry.c | 57 +-------------------------------
 3 files changed, 3 insertions(+), 60 deletions(-)

diff --git a/MdeModulePkg/Universal/BdsDxe/Bds.h b/MdeModulePkg/Universal/BdsDxe/Bds.h
index 5658e61..63d961f 100644
--- a/MdeModulePkg/Universal/BdsDxe/Bds.h
+++ b/MdeModulePkg/Universal/BdsDxe/Bds.h
@@ -1,9 +1,9 @@
 /** @file
   Head file for BDS Architectural Protocol implementation
 
-Copyright (c) 2004 - 2017, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
 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
 
@@ -16,11 +16,10 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define _BDS_MODULE_H_
 
 #include <Uefi.h>
 #include <Guid/GlobalVariable.h>
 #include <Guid/ConnectConInEvent.h>
-#include <Guid/Performance.h>
 #include <Guid/StatusCodeDataTypeVariable.h>
 #include <Guid/EventGroup.h>
 
 #include <Protocol/Bds.h>
 #include <Protocol/LoadedImage.h>
diff --git a/MdeModulePkg/Universal/BdsDxe/BdsDxe.inf b/MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
index a00b442..b8c5aa9 100644
--- a/MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
+++ b/MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
@@ -3,11 +3,11 @@
 #
 #  When DxeCore dispatching all DXE driver, this module will produce architecture protocol 
 #  gEfiBdsArchProtocolGuid. After DxeCore finish dispatching, DxeCore will invoke Entry
 #  interface of protocol gEfiBdsArchProtocolGuid, then BDS phase is entered.
 #  
-#  Copyright (c) 2008 - 2016, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR>
 #  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
 #
@@ -76,11 +76,10 @@
                                                 ## SOMETIMES_CONSUMES ## Variable:L"ConIn" (The device path of console in device)
                                                 ## SOMETIMES_CONSUMES ## Variable:L"ConOut" (The device path of console out device)
                                                 ## SOMETIMES_CONSUMES ## Variable:L"ErrOut" (The device path of error out device)
   gConnectConInEventGuid                        ## SOMETIMES_CONSUMES ## Event
   gEdkiiStatusCodeDataTypeVariableGuid          ## SOMETIMES_CONSUMES ## GUID
-  gPerformanceProtocolGuid                      ## SOMETIMES_PRODUCES ## Variable:L"PerfDataMemAddr" (The ACPI address of performance data)
   gEfiEventReadyToBootGuid                      ## CONSUMES           ## Event
 
 [Protocols]
   gEfiBdsArchProtocolGuid                       ## PRODUCES
   gEfiSimpleTextInputExProtocolGuid             ## CONSUMES
diff --git a/MdeModulePkg/Universal/BdsDxe/BdsEntry.c b/MdeModulePkg/Universal/BdsDxe/BdsEntry.c
index 2b24755..3191a98 100644
--- a/MdeModulePkg/Universal/BdsDxe/BdsEntry.c
+++ b/MdeModulePkg/Universal/BdsDxe/BdsEntry.c
@@ -3,11 +3,11 @@
   When this module was dispatched by DxeCore, gEfiBdsArchProtocolGuid will be installed
   which contains interface of BdsEntry.
   After DxeCore finish DXE phase, gEfiBdsArchProtocolGuid->BdsEntry will be invoked
   to enter BDS phase.
 
-Copyright (c) 2004 - 2017, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
 (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
 (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
 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
@@ -633,61 +633,10 @@ BdsFormalizeEfiGlobalVariable (
   //
   BdsFormalizeOSIndicationVariable ();
 }
 
 /**
-
-  Allocate a block of memory that will contain performance data to OS.
-
-**/
-VOID
-BdsAllocateMemoryForPerformanceData (
-  VOID
-  )
-{
-  EFI_STATUS                    Status;
-  EFI_PHYSICAL_ADDRESS          AcpiLowMemoryBase;
-  EDKII_VARIABLE_LOCK_PROTOCOL  *VariableLock;
-
-  AcpiLowMemoryBase = 0x0FFFFFFFFULL;
-
-  //
-  // Allocate a block of memory that will contain performance data to OS.
-  //
-  Status = gBS->AllocatePages (
-                  AllocateMaxAddress,
-                  EfiReservedMemoryType,
-                  EFI_SIZE_TO_PAGES (PERF_DATA_MAX_LENGTH),
-                  &AcpiLowMemoryBase
-                  );
-  if (!EFI_ERROR (Status)) {
-    //
-    // Save the pointer to variable for use in S3 resume.
-    //
-    Status = BdsDxeSetVariableAndReportStatusCodeOnError (
-               L"PerfDataMemAddr",
-               &gPerformanceProtocolGuid,
-               EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
-               sizeof (EFI_PHYSICAL_ADDRESS),
-               &AcpiLowMemoryBase
-               );
-    if (EFI_ERROR (Status)) {
-      DEBUG ((EFI_D_ERROR, "[Bds] PerfDataMemAddr (%08x) cannot be saved to NV storage.\n", AcpiLowMemoryBase));
-    }
-    //
-    // Mark L"PerfDataMemAddr" variable to read-only if the Variable Lock protocol exists
-    // Still lock it even the variable cannot be saved to prevent it's set by 3rd party code.
-    //
-    Status = gBS->LocateProtocol (&gEdkiiVariableLockProtocolGuid, NULL, (VOID **) &VariableLock);
-    if (!EFI_ERROR (Status)) {
-      Status = VariableLock->RequestToLock (VariableLock, L"PerfDataMemAddr", &gPerformanceProtocolGuid);
-      ASSERT_EFI_ERROR (Status);
-    }
-  }
-}
-
-/**
   Enter an infinite loop of calling the Boot Manager Menu.
 
   This is a last resort alternative to BdsEntry() giving up for good. This
   function never returns.
 
@@ -778,14 +727,10 @@ BdsEntry (
   //
   PERF_END (NULL, "DXE", NULL, 0);
   PERF_START (NULL, "BDS", NULL, 0);
   DEBUG ((EFI_D_INFO, "[Bds] Entry...\n"));
 
-  PERF_CODE (
-    BdsAllocateMemoryForPerformanceData ();
-  );
-
   //
   // Fill in FirmwareVendor and FirmwareRevision from PCDs
   //
   FirmwareVendor = (CHAR16 *) PcdGetPtr (PcdFirmwareVendor);
   gST->FirmwareVendor = AllocateRuntimeCopyPool (StrSize (FirmwareVendor), FirmwareVendor);
-- 
1.9.5.msysgit.1