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diff --git a/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/BrotliCustomDecompressLib/BrotliDecompressLibInternal.h b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/BrotliCustomDecompressLib/BrotliDecompressLibInternal.h
new file mode 100644
index 00000000..e76f4cda
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/BrotliCustomDecompressLib/BrotliDecompressLibInternal.h
@@ -0,0 +1,48 @@
+/** @file
+ BROTLI UEFI header file
+
+ Allows BROTLI code to build under UEFI (edk2) build environment
+
+ Copyright (c) 2017 - 2020, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __BROTLI_DECOMPRESS_INTERNAL_H__
+#define __BROTLI_DECOMPRESS_INTERNAL_H__
+
+#include <PiPei.h>
+#include <Library/ExtractGuidedSectionLib.h>
+#include <brotli/c/include/brotli/types.h>
+#include <brotli/c/include/brotli/decode.h>
+
+typedef struct
+{
+ VOID *Buff;
+ UINTN BuffSize;
+} BROTLI_BUFF;
+
+#define FILE_BUFFER_SIZE 65536
+#define BROTLI_INFO_SIZE 8
+#define BROTLI_DECODE_MAX 8
+#define BROTLI_SCRATCH_MAX 16
+
+EFI_STATUS
+EFIAPI
+BrotliUefiDecompressGetInfo (
+ IN CONST VOID *Source,
+ IN UINT32 SourceSize,
+ OUT UINT32 *DestinationSize,
+ OUT UINT32 *ScratchSize
+ );
+
+EFI_STATUS
+EFIAPI
+BrotliUefiDecompress (
+ IN CONST VOID *Source,
+ IN UINTN SourceSize,
+ IN OUT VOID *Destination,
+ IN OUT VOID *Scratch
+ );
+
+#endif