1 files changed, 56 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/IntelFsp2Pkg/Include/Library/CacheLib.h b/src/VBox/Devices/EFI/Firmware/IntelFsp2Pkg/Include/Library/CacheLib.h
new file mode 100644
index 00000000..7548b7e1
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/IntelFsp2Pkg/Include/Library/CacheLib.h
@@ -0,0 +1,56 @@
+/** @file
+
+  Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _CACHE_LIB_H_
+#define _CACHE_LIB_H_
+
+//
+// EFI_MEMORY_CACHE_TYPE
+//
+typedef INT32 EFI_MEMORY_CACHE_TYPE;
+
+#define EFI_CACHE_UNCACHEABLE                 0
+#define EFI_CACHE_WRITECOMBINING              1
+#define EFI_CACHE_WRITETHROUGH                4
+#define EFI_CACHE_WRITEPROTECTED              5
+#define EFI_CACHE_WRITEBACK                   6
+
+/**
+ Reset all the MTRRs to a known state.
+
+  @retval  EFI_SUCCESS All MTRRs have been reset successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+ResetCacheAttributes (
+  VOID
+  );
+
+/**
+  Given the memory range and cache type, programs the MTRRs.
+
+  @param[in] MemoryAddress           Base Address of Memory to program MTRR.
+  @param[in] MemoryLength            Length of Memory to program MTRR.
+  @param[in] MemoryCacheType         Cache Type.
+
+  @retval EFI_SUCCESS            Mtrr are set successfully.
+  @retval EFI_LOAD_ERROR         No empty MTRRs to use.
+  @retval EFI_INVALID_PARAMETER  The input parameter is not valid.
+  @retval others                 An error occurs when setting MTTR.
+
+**/
+EFI_STATUS
+EFIAPI
+SetCacheAttributes (
+  IN  EFI_PHYSICAL_ADDRESS      MemoryAddress,
+  IN  UINT64                    MemoryLength,
+  IN  EFI_MEMORY_CACHE_TYPE     MemoryCacheType
+  );
+
+#endif
+