1 files changed, 127 insertions, 0 deletions
diff --git a/roms/edk2/StandaloneMmPkg/Include/Guid/MmCoreData.h b/roms/edk2/StandaloneMmPkg/Include/Guid/MmCoreData.h
new file mode 100644
index 000000000..8bd80e051
--- /dev/null
+++ b/roms/edk2/StandaloneMmPkg/Include/Guid/MmCoreData.h
@@ -0,0 +1,127 @@
+/** @file
+  MM Core data.
+
+Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2018, ARM Limited. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __MM_CORE_DATA_H__
+#define __MM_CORE_DATA_H__
+
+#define MM_CORE_DATA_HOB_GUID \
+  { 0xa160bf99, 0x2aa4, 0x4d7d, { 0x99, 0x93, 0x89, 0x9c, 0xb1, 0x2d, 0xf3, 0x76 }}
+
+extern EFI_GUID gMmCoreDataHobGuid;
+
+typedef struct {
+  //
+  // Address pointer to MM_CORE_PRIVATE_DATA
+  //
+  EFI_PHYSICAL_ADDRESS   Address;
+} MM_CORE_DATA_HOB_DATA;
+
+
+///
+/// Define values for the communications buffer used when gEfiEventDxeDispatchGuid is
+/// event signaled.  This event is signaled by the DXE Core each time the DXE Core
+/// dispatcher has completed its work.  When this event is signaled, the MM Core
+/// if notified, so the MM Core can dispatch MM drivers.  If COMM_BUFFER_MM_DISPATCH_ERROR
+/// is returned in the communication buffer, then an error occurred dispatching MM
+/// Drivers.  If COMM_BUFFER_MM_DISPATCH_SUCCESS is returned, then the MM Core
+/// dispatched all the drivers it could.  If COMM_BUFFER_MM_DISPATCH_RESTART is
+/// returned, then the MM Core just dispatched the MM Driver that registered
+/// the MM Entry Point enabling the use of MM Mode.  In this case, the MM Core
+/// should be notified again to dispatch more MM Drivers using MM Mode.
+///
+#define COMM_BUFFER_MM_DISPATCH_ERROR    0x00
+#define COMM_BUFFER_MM_DISPATCH_SUCCESS  0x01
+#define COMM_BUFFER_MM_DISPATCH_RESTART  0x02
+
+///
+/// Signature for the private structure shared between the MM IPL and the MM Core
+///
+#define MM_CORE_PRIVATE_DATA_SIGNATURE  SIGNATURE_32 ('m', 'm', 'i', 'c')
+
+///
+/// Private structure that is used to share information between the MM IPL and
+/// the MM Core.  This structure is allocated from memory of type EfiRuntimeServicesData.
+/// Since runtime memory types are converted to available memory when a legacy boot
+/// is performed, the MM Core must not access any fields of this structure if a legacy
+/// boot is performed.  As a result, the MM IPL must create an event notification
+/// for the Legacy Boot event and notify the MM Core that a legacy boot is being
+/// performed.  The MM Core can then use this information to filter accesses to
+/// thos structure.
+///
+typedef struct {
+  UINT64                          Signature;
+
+  ///
+  /// The number of MMRAM ranges passed from the MM IPL to the MM Core.  The MM
+  /// Core uses these ranges of MMRAM to initialize the MM Core memory manager.
+  ///
+  UINT64                          MmramRangeCount;
+
+  ///
+  /// A table of MMRAM ranges passed from the MM IPL to the MM Core.  The MM
+  /// Core uses these ranges of MMRAM to initialize the MM Core memory manager.
+  ///
+  EFI_PHYSICAL_ADDRESS            MmramRanges;
+
+  ///
+  /// The MM Foundation Entry Point.  The MM Core fills in this field when the
+  /// MM Core is initialized.  The MM IPL is responsbile for registering this entry
+  /// point with the MM Configuration Protocol.  The MM Configuration Protocol may
+  /// not be available at the time the MM IPL and MM Core are started, so the MM IPL
+  /// sets up a protocol notification on the MM Configuration Protocol and registers
+  /// the MM Foundation Entry Point as soon as the MM Configuration Protocol is
+  /// available.
+  ///
+  EFI_PHYSICAL_ADDRESS            MmEntryPoint;
+
+  ///
+  /// Boolean flag set to TRUE while an MMI is being processed by the MM Core.
+  ///
+  BOOLEAN                         MmEntryPointRegistered;
+
+  ///
+  /// Boolean flag set to TRUE while an MMI is being processed by the MM Core.
+  ///
+  BOOLEAN                         InMm;
+
+  ///
+  /// This field is set by the MM Core then the MM Core is initialized.  This field is
+  /// used by the MM Base 2 Protocol and MM Communication Protocol implementations in
+  /// the MM IPL.
+  ///
+  EFI_PHYSICAL_ADDRESS            Mmst;
+
+  ///
+  /// This field is used by the MM Communicatioon Protocol to pass a buffer into
+  /// a software MMI handler and for the software MMI handler to pass a buffer back to
+  /// the caller of the MM Communication Protocol.
+  ///
+  EFI_PHYSICAL_ADDRESS            CommunicationBuffer;
+
+  ///
+  /// This field is used by the MM Communicatioon Protocol to pass the size of a buffer,
+  /// in bytes, into a software MMI handler and for the software MMI handler to pass the
+  /// size, in bytes, of a buffer back to the caller of the MM Communication Protocol.
+  ///
+  UINT64                          BufferSize;
+
+  ///
+  /// This field is used by the MM Communication Protocol to pass the return status from
+  /// a software MMI handler back to the caller of the MM Communication Protocol.
+  ///
+  UINT64                          ReturnStatus;
+
+  EFI_PHYSICAL_ADDRESS            MmCoreImageBase;
+  UINT64                          MmCoreImageSize;
+  EFI_PHYSICAL_ADDRESS            MmCoreEntryPoint;
+
+  EFI_PHYSICAL_ADDRESS            StandaloneBfvAddress;
+} MM_CORE_PRIVATE_DATA;
+
+#endif