CryptoPkg: Add CryptoStandaloneMm and StandaloneMmCryptLib

Adds a Standalone MM instance of BaseCryptLib intended to only be
used with the CryptoStandaloneMm driver added. The library instance
can be linked against Standalone MM drivers to the use the
gEdkiiSmmCryptoProtocolGuid protocol instance produced by
CryptoStandaloneMm.

Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>

CryptoPkg/CryptoPkg.dsc

@@ -156,6 +156,15 @@
   ReportStatusCodeLib|MdePkg/Library/BaseReportStatusCodeLibNull/BaseReportStatusCodeLibNull.inf
   PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
 
+[LibraryClasses.common.MM_STANDALONE]
+  BaseCryptLib|CryptoPkg/Library/BaseCryptLib/SmmCryptLib.inf
+  DebugLib|MdePkg/Library/BaseDebugLibNull/BaseDebugLibNull.inf
+  MemoryAllocationLib|StandaloneMmPkg/Library/StandaloneMmMemoryAllocationLib/StandaloneMmMemoryAllocationLib.inf
+  MmServicesTableLib|MdePkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.inf
+  ReportStatusCodeLib|MdeModulePkg/Library/SmmReportStatusCodeLib/StandaloneMmReportStatusCodeLib.inf
+  StandaloneMmDriverEntryPoint|MdePkg/Library/StandaloneMmDriverEntryPoint/StandaloneMmDriverEntryPoint.inf
+  TlsLib|CryptoPkg/Library/TlsLibNull/TlsLibNull.inf
+
 ################################################################################
 #
 # Pcd Section - list of all EDK II PCD Entries defined by this Platform
@@ -218,6 +227,7 @@
 
   CryptoPkg/Library/BaseCryptLibOnProtocolPpi/PeiCryptLib.inf
   CryptoPkg/Library/BaseCryptLibOnProtocolPpi/DxeCryptLib.inf
+  CryptoPkg/Library/BaseCryptLibOnProtocolPpi/StandaloneMmCryptLib.inf  # MU_CHANGE: Add StandaloneMmCryptLib
   # MU_CHANGE [BEGIN] The prebuilt versions of CryptoDriver
 !if $(CRYPTO_BINARY_EXTDEP_PATH) != FALSE
   !include CryptoPkg/Driver/Bin/CryptoPkg.ci.inc.dsc
@@ -248,7 +258,22 @@
       FILE_GUID = $(DXE_CRYPTO_DRIVER_FILE_GUID)  # MU_CHANGE updated File GUID
   }
 
-  ## MU_CHANGE TCBZ_3799 - can't compile for ARM as it depends on ArmSoftFloatLib
+[Components.IA32, Components.X64]
+  CryptoPkg/Driver/CryptoSmm.inf {
+    <Defines>
+      FILE_GUID = $(SMM_CRYPTO_DRIVER_FILE_GUID)# MU_CHANGE updated File GUID
+  }
+
+# MU_CHANGE [BEGIN]: Add CryptoStandaloneMm
+[Components.IA32, Components.X64, Components.AARCH64]
+  CryptoPkg/Driver/CryptoStandaloneMm.inf {
+    <Defines>
+      FILE_GUID = $(STANDALONEMM_CRYPTO_DRIVER_FILE_GUID)  # MU_CHANGE updated File GUID
+  }
+# MU_CHANGE [END]: Add CryptoStandaloneMm
+
+## MU_CHANGE TCBZ_3799 - can't compile for ARM as it depends on ArmSoftFloatLib
+[Components.IA32, Components.X64, Components.AARCH64]
   CryptoPkg/Test/UnitTest/Library/BaseCryptLib/BaseCryptLibUnitTestApp.inf {  ## Add unit-test application for the crypto tests.
     ## MU_CHANGE [START] add library classes to allow crypto tests to run in uefi shell correctly
     <LibraryClasses>
@@ -268,12 +293,6 @@
   ## MU_CHANGE [END]
 ## MU_CHANGE [END]
 
-[Components.IA32, Components.X64]
-  CryptoPkg/Driver/CryptoSmm.inf {
-    <Defines>
-      FILE_GUID = $(SMM_CRYPTO_DRIVER_FILE_GUID)# MU_CHANGE updated File GUID
-  }
-
 [BuildOptions]
   RELEASE_*_*_CC_FLAGS = -DMDEPKG_NDEBUG
   *_*_*_CC_FLAGS = -D DISABLE_NEW_DEPRECATED_INTERFACES

CryptoPkg/Driver/CryptoStandaloneMm.c

@@ -0,0 +1,41 @@
+/** @file
+  Installs the EDK II Crypto SMM Protocol in Standalone MM.
+
+  Copyright (C) Microsoft Corporation. All rights reserved.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <PiMm.h>
+#include <Library/MmServicesTableLib.h>
+#include <Protocol/SmmCrypto.h>
+
+extern CONST EDKII_CRYPTO_PROTOCOL  mEdkiiCrypto;
+
+/**
+  The module Entry Point of the Crypto Standalone MM Driver.
+
+  @param[in]  ImageHandle    The firmware allocated handle for the EFI image.
+  @param[in]  SystemTable    A pointer to the EFI System Table.
+
+  @retval EFI_SUCCESS    The entry point is executed successfully.
+  @retval Other          Some error occurs when executing this entry point.
+
+**/
+EFI_STATUS
+EFIAPI
+CryptoStandaloneMmEntry (
+  IN EFI_HANDLE           ImageHandle,
+  IN EFI_MM_SYSTEM_TABLE  *MmSystemTable
+  )
+{
+  EFI_HANDLE  Handle;
+
+  Handle = NULL;
+  return gMmst->MmInstallProtocolInterface (
+                  &Handle,
+                  &gEdkiiSmmCryptoProtocolGuid,
+                  EFI_NATIVE_INTERFACE,
+                  (EDKII_CRYPTO_PROTOCOL *)&mEdkiiCrypto
+                  );
+}