[PATCH 4/4] StandaloneMmPkg: Import StandaloneMmServicesTableLib library.

["Marvin Häuser" <Marvin.Haeuser@outlook.com>]

Implements the MmServicesTableLib library class for MM Stanalone
modules.  The code was derieved from SmmServicesTableLib.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
---
 StandaloneMmPkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.c   | 64 ++++++++++++++++++++
 StandaloneMmPkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.inf | 35 +++++++++++
 StandaloneMmPkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.uni | 21 +++++++
 3 files changed, 120 insertions(+)

diff --git a/StandaloneMmPkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.c b/StandaloneMmPkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.c
new file mode 100644
index 000000000000..d33ff953b555
--- /dev/null
+++ b/StandaloneMmPkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.c
@@ -0,0 +1,64 @@
+/** @file
+  Standalone MM Services Table Library.
+
+  Copyright (c) 2010 - 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.
+
+  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 <PiMm.h>
+#include <Library/MmServicesTableLib.h>
+#include <Library/DebugLib.h>
+
+EFI_MM_SYSTEM_TABLE *gMmst = NULL;
+
+/**
+  The constructor function caches the pointer of MM Services Table.
+
+  @param  ImageHandle    The firmware allocated handle for the EFI image.
+  @param  MmSystemTable  A pointer to the MM System Table.
+
+  @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+StandaloneMmServicesTableLibConstructor (
+  IN EFI_HANDLE           ImageHandle,
+  IN EFI_MM_SYSTEM_TABLE  *MmSystemTable
+  )
+{
+  gMmst = MmSystemTable;
+  ASSERT (gMmst != NULL);
+
+  return EFI_SUCCESS;
+}
+
+/**
+  This function allows the caller to determine if the driver is executing in
+  Management Mode(MM).
+
+  This function returns TRUE if the driver is executing in MM and FALSE if the
+  driver is not executing in MM.
+
+  @retval  TRUE  The driver is executing in Management Mode (MM).
+  @retval  FALSE The driver is not executing in Management Mode (MM).
+
+**/
+BOOLEAN
+EFIAPI
+InMm (
+  VOID
+  )
+{
+  //
+  // We are already in MM
+  //
+  return TRUE;
+}
diff --git a/StandaloneMmPkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.inf b/StandaloneMmPkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.inf
new file mode 100644
index 000000000000..bfe5678a5bc0
--- /dev/null
+++ b/StandaloneMmPkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.inf
@@ -0,0 +1,35 @@
+## @file
+# Standalone MM Services Table Library.
+#
+# Copyright (c) 2009 - 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.
+#
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = StandaloneMmServicesTableLib
+  MODULE_UNI_FILE                = StandaloneMmServicesTableLib.uni
+  FILE_GUID                      = 821F6D8E-CE99-4CD5-B1FD-C33AC8BA5704
+  MODULE_TYPE                    = MM_STANDALONE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = MmServicesTableLib|MM_STANDALONE
+  PI_SPECIFICATION_VERSION       = 0x0001000A
+  CONSTRUCTOR                    = StandaloneMmServicesTableLibConstructor
+
+[Sources]
+  StandaloneMmServicesTableLib.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  StandaloneMmPkg/StandaloneMmPkg.dec
+
+[LibraryClasses]
+  DebugLib
diff --git a/StandaloneMmPkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.uni b/StandaloneMmPkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.uni
new file mode 100644
index 000000000000..c0581e2820ce
--- /dev/null
+++ b/StandaloneMmPkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.uni
@@ -0,0 +1,21 @@
+// /** @file
+// Standalone MM Services Table Library.
+//
+// Standalone MM Services Table Library.
+//
+// Copyright (c) 2009 - 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.
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT             #language en-US "Standalone MM Services Table Library"
+
+#string STR_MODULE_DESCRIPTION          #language en-US "Standalone MM Services Table Library."
+
-- 
2.18.0.windows.1