1 files changed, 41 insertions, 0 deletions
diff --git a/IntelFsp2Pkg/Library/BaseCacheAsRamLibNull/DisableCacheAsRamNull.c b/IntelFsp2Pkg/Library/BaseCacheAsRamLibNull/DisableCacheAsRamNull.c
new file mode 100644
index 0000000000..9b45163c34
--- /dev/null
+++ b/IntelFsp2Pkg/Library/BaseCacheAsRamLibNull/DisableCacheAsRamNull.c
@@ -0,0 +1,41 @@
+/** @file
+
+  Copyright (c) 2014, 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.
+
+  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 <Uefi.h>
+#include <Library/BaseLib.h>
+#include <Library/CacheAsRamLib.h>
+
+/**
+  This function disable CAR.
+
+  @param[in] DisableCar       TRUE means use INVD, FALSE means use WBINVD
+
+**/
+VOID
+EFIAPI
+DisableCacheAsRam (
+  IN BOOLEAN                   DisableCar
+  )
+{
+  //
+  // Disable CAR
+  //
+
+  if (DisableCar) {
+    AsmInvd ();
+  } else {
+    AsmWbinvd();
+  }
+
+  return ;
+}