MdePkg/Include/Pi/PiSmmCis.h

/** @file
  Common definitions in the Platform Initialization Specification version 1.4a
  VOLUME 4 System Management Mode Core Interface version.

  Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#ifndef _PI_SMMCIS_H_
#define _PI_SMMCIS_H_

#include <Pi/PiMmCis.h>
#include <Protocol/SmmCpuIo2.h>

typedef struct _EFI_SMM_SYSTEM_TABLE2 EFI_SMM_SYSTEM_TABLE2;
//
// Define new MM related definition introduced by PI 1.5.
//
#define  SMM_SMST_SIGNATURE                MM_MMST_SIGNATURE
#define  SMM_SPECIFICATION_MAJOR_REVISION  MM_SPECIFICATION_MAJOR_REVISION
#define  SMM_SPECIFICATION_MINOR_REVISION  MM_SPECIFICATION_MINOR_REVISION
#define  EFI_SMM_SYSTEM_TABLE2_REVISION    EFI_MM_SYSTEM_TABLE_REVISION

/**
  Adds, updates, or removes a configuration table entry from the System Management System Table.

  The SmmInstallConfigurationTable() function is used to maintain the list
  of configuration tables that are stored in the System Management System
  Table.  The list is stored as an array of (GUID, Pointer) pairs.  The list
  must be allocated from pool memory with PoolType set to EfiRuntimeServicesData.

  @param[in] SystemTable         A pointer to the SMM System Table (SMST).
  @param[in] Guid                A pointer to the GUID for the entry to add, update, or remove.
  @param[in] Table               A pointer to the buffer of the table to add.
  @param[in] TableSize           The size of the table to install.

  @retval EFI_SUCCESS            The (Guid, Table) pair was added, updated, or removed.
  @retval EFI_INVALID_PARAMETER  Guid is not valid.
  @retval EFI_NOT_FOUND          An attempt was made to delete a non-existent entry.
  @retval EFI_OUT_OF_RESOURCES   There is not enough memory available to complete the operation.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SMM_INSTALL_CONFIGURATION_TABLE2)(
  IN CONST EFI_SMM_SYSTEM_TABLE2    *SystemTable,
  IN CONST EFI_GUID                 *Guid,
  IN VOID                           *Table,
  IN UINTN                          TableSize
  );

typedef  EFI_MM_STARTUP_THIS_AP          EFI_SMM_STARTUP_THIS_AP;
typedef  EFI_MM_NOTIFY_FN                EFI_SMM_NOTIFY_FN;
typedef  EFI_MM_REGISTER_PROTOCOL_NOTIFY EFI_SMM_REGISTER_PROTOCOL_NOTIFY;
typedef  EFI_MM_INTERRUPT_MANAGE         EFI_SMM_INTERRUPT_MANAGE;
typedef  EFI_MM_HANDLER_ENTRY_POINT      EFI_SMM_HANDLER_ENTRY_POINT2;
typedef  EFI_MM_INTERRUPT_REGISTER       EFI_SMM_INTERRUPT_REGISTER;
typedef  EFI_MM_INTERRUPT_UNREGISTER     EFI_SMM_INTERRUPT_UNREGISTER;

///
/// Processor information and functionality needed by SMM Foundation.
///
typedef struct _EFI_SMM_ENTRY_CONTEXT {
  EFI_SMM_STARTUP_THIS_AP    SmmStartupThisAp;
  ///
  /// A number between zero and the NumberOfCpus field. This field designates which
  /// processor is executing the SMM Foundation.
  ///
  UINTN                      CurrentlyExecutingCpu;
  ///
  /// The number of possible processors in the platform.  This is a 1 based
  /// counter.  This does not indicate the number of processors that entered SMM.
  ///
  UINTN                      NumberOfCpus;
  ///
  /// Points to an array, where each element describes the number of bytes in the
  /// corresponding save state specified by CpuSaveState. There are always
  /// NumberOfCpus entries in the array.
  ///
  UINTN                      *CpuSaveStateSize;
  ///
  /// Points to an array, where each element is a pointer to a CPU save state. The
  /// corresponding element in CpuSaveStateSize specifies the number of bytes in the
  /// save state area. There are always NumberOfCpus entries in the array.
  ///
  VOID                       **CpuSaveState;
} EFI_SMM_ENTRY_CONTEXT;

/**
  This function is the main entry point to the SMM Foundation.

  @param[in] SmmEntryContext  Processor information and functionality needed by SMM Foundation.
**/
typedef
VOID
(EFIAPI *EFI_SMM_ENTRY_POINT)(
  IN CONST EFI_SMM_ENTRY_CONTEXT  *SmmEntryContext
  );

///
/// System Management System Table (SMST)
///
/// The System Management System Table (SMST) is a table that contains a collection of common
/// services for managing SMRAM allocation and providing basic I/O services. These services are
/// intended for both preboot and runtime usage.
///
struct _EFI_SMM_SYSTEM_TABLE2 {
  ///
  /// The table header for the SMST.
  ///
  EFI_TABLE_HEADER                        Hdr;
  ///
  /// A pointer to a NULL-terminated Unicode string containing the vendor name.
  /// It is permissible for this pointer to be NULL.
  ///
  CHAR16                                  *SmmFirmwareVendor;
  ///
  /// The particular revision of the firmware.
  ///
  UINT32                                  SmmFirmwareRevision;

  EFI_SMM_INSTALL_CONFIGURATION_TABLE2    SmmInstallConfigurationTable;

  ///
  /// I/O Service
  ///
  EFI_SMM_CPU_IO2_PROTOCOL                SmmIo;

  ///
  /// Runtime memory services
  ///
  EFI_ALLOCATE_POOL                       SmmAllocatePool;
  EFI_FREE_POOL                           SmmFreePool;
  EFI_ALLOCATE_PAGES                      SmmAllocatePages;
  EFI_FREE_PAGES                          SmmFreePages;

  ///
  /// MP service
  ///
  EFI_SMM_STARTUP_THIS_AP                 SmmStartupThisAp;

  ///
  /// CPU information records
  ///

  ///
  /// A number between zero and and the NumberOfCpus field. This field designates
  /// which processor is executing the SMM infrastructure.
  ///
  UINTN    CurrentlyExecutingCpu;
  ///
  /// The number of possible processors in the platform.  This is a 1 based counter.
  ///
  UINTN    NumberOfCpus;
  ///
  /// Points to an array, where each element describes the number of bytes in the
  /// corresponding save state specified by CpuSaveState. There are always
  /// NumberOfCpus entries in the array.
  ///
  UINTN    *CpuSaveStateSize;
  ///
  /// Points to an array, where each element is a pointer to a CPU save state. The
  /// corresponding element in CpuSaveStateSize specifies the number of bytes in the
  /// save state area. There are always NumberOfCpus entries in the array.
  ///
  VOID     **CpuSaveState;

  ///
  /// Extensibility table
  ///

  ///
  /// The number of UEFI Configuration Tables in the buffer SmmConfigurationTable.
  ///
  UINTN                               NumberOfTableEntries;
  ///
  /// A pointer to the UEFI Configuration Tables. The number of entries in the table is
  /// NumberOfTableEntries.
  ///
  EFI_CONFIGURATION_TABLE             *SmmConfigurationTable;

  ///
  /// Protocol services
  ///
  EFI_INSTALL_PROTOCOL_INTERFACE      SmmInstallProtocolInterface;
  EFI_UNINSTALL_PROTOCOL_INTERFACE    SmmUninstallProtocolInterface;
  EFI_HANDLE_PROTOCOL                 SmmHandleProtocol;
  EFI_SMM_REGISTER_PROTOCOL_NOTIFY    SmmRegisterProtocolNotify;
  EFI_LOCATE_HANDLE                   SmmLocateHandle;
  EFI_LOCATE_PROTOCOL                 SmmLocateProtocol;

  ///
  /// SMI Management functions
  ///
  EFI_SMM_INTERRUPT_MANAGE            SmiManage;
  EFI_SMM_INTERRUPT_REGISTER          SmiHandlerRegister;
  EFI_SMM_INTERRUPT_UNREGISTER        SmiHandlerUnRegister;
};

#endif