1 files changed, 54 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/PiSmmCoreSmmServicesTableLib/PiSmmCoreSmmServicesTableLib.c b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/PiSmmCoreSmmServicesTableLib/PiSmmCoreSmmServicesTableLib.c
new file mode 100644
index 00000000..9e0d3c65
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/PiSmmCoreSmmServicesTableLib/PiSmmCoreSmmServicesTableLib.c
@@ -0,0 +1,54 @@
+/** @file
+  SMM Core SMM Services Table Library.
+
+  Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <PiSmm.h>
+#include <Library/SmmServicesTableLib.h>
+#include <Library/DebugLib.h>
+
+EFI_SMM_SYSTEM_TABLE2         *gSmst = NULL;
+extern EFI_SMM_SYSTEM_TABLE2  gSmmCoreSmst;
+
+/**
+  The constructor function caches the pointer of SMM Services Table.
+
+  @param  ImageHandle   The firmware allocated handle for the EFI image.
+  @param  SystemTable   A pointer to the EFI System Table.
+
+  @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+SmmCoreSmmServicesTableLibConstructor (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  gSmst = &gSmmCoreSmst;
+  return EFI_SUCCESS;
+}
+
+/**
+  This function allows the caller to determine if the driver is executing in
+  System Management Mode(SMM).
+
+  This function returns TRUE if the driver is executing in SMM and FALSE if the
+  driver is not executing in SMM.
+
+  @retval  TRUE  The driver is executing in System Management Mode (SMM).
+  @retval  FALSE The driver is not executing in System Management Mode (SMM).
+
+**/
+BOOLEAN
+EFIAPI
+InSmm (
+  VOID
+  )
+{
+  return TRUE;
+}