1 files changed, 81 insertions, 0 deletions
diff --git a/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Protocol/MmBase.h b/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Protocol/MmBase.h
new file mode 100644
index 0000000000..3a8f3e69bb
--- /dev/null
+++ b/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Protocol/MmBase.h
@@ -0,0 +1,81 @@
+/** @file
+  EFI MM Base Protocol as defined in the PI 1.5 specification.
+
+  This protocol is utilized by all MM drivers to locate the MM infrastructure services and determine
+  whether the driver is being invoked inside MMRAM or outside of MMRAM.
+
+  Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _MM_BASE_H_
+#define _MM_BASE_H_
+
+#include <Pi/PiMmCis.h>
+
+#define EFI_MM_BASE_PROTOCOL_GUID \
+  { \
+    0xf4ccbfb7, 0xf6e0, 0x47fd, {0x9d, 0xd4, 0x10, 0xa8, 0xf1, 0x50, 0xc1, 0x91 }  \
+  }
+
+typedef struct _EFI_MM_BASE_PROTOCOL  EFI_MM_BASE_PROTOCOL;
+
+/**
+  Service to indicate whether the driver is currently executing in the MM Initialization phase.
+
+  This service is used to indicate whether the driver is currently executing in the MM Initialization
+  phase. For MM drivers, this will return TRUE in InMmram while inside the driver's entry point and
+  otherwise FALSE. For combination MM/DXE drivers, this will return FALSE in the DXE launch. For the
+  MM launch, it behaves as an MM driver.
+
+  @param[in]  This               The EFI_MM_BASE_PROTOCOL instance.
+  @param[out] InMmram            Pointer to a Boolean which, on return, indicates that the driver is
+                                 currently executing inside of MMRAM (TRUE) or outside of MMRAM (FALSE).
+
+  @retval EFI_SUCCESS            The call returned successfully.
+  @retval EFI_INVALID_PARAMETER  InMmram was NULL.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_MM_INSIDE_OUT)(
+  IN CONST EFI_MM_BASE_PROTOCOL    *This,
+  OUT BOOLEAN                      *InMmram
+  )
+;
+
+/**
+  Returns the location of the Management Mode Service Table (MMST).
+
+  This function returns the location of the Management Mode Service Table (MMST).  The use of the
+  API is such that a driver can discover the location of the MMST in its entry point and then cache it in
+  some driver global variable so that the MMST can be invoked in subsequent handlers.
+
+  @param[in]     This            The EFI_MM_BASE_PROTOCOL instance.
+  @param[in,out] Mmst            On return, points to a pointer to the Management Mode Service Table (MMST).
+
+  @retval EFI_SUCCESS            The operation was successful.
+  @retval EFI_INVALID_PARAMETER  Mmst was invalid.
+  @retval EFI_UNSUPPORTED        Not in MM.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_MM_GET_MMST_LOCATION)(
+  IN CONST EFI_MM_BASE_PROTOCOL  *This,
+  IN OUT EFI_MM_SYSTEM_TABLE     **Mmst
+  )
+;
+
+///
+/// EFI MM Base Protocol is utilized by all MM drivers to locate the MM infrastructure
+/// services and determine whether the driver is being invoked inside MMRAM or outside of MMRAM.
+///
+struct _EFI_MM_BASE_PROTOCOL {
+  EFI_MM_INSIDE_OUT         InMm;
+  EFI_MM_GET_MMST_LOCATION  GetMmstLocation;
+};
+
+extern EFI_GUID gEfiMmBaseProtocolGuid;
+
+#endif
+