CorebootModulePkg/SecCore/SecMain.h

/** @file
  Master header file for SecCore.

Copyright (c) 2013, 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.

**/

#ifndef _SEC_CORE_H_
#define _SEC_CORE_H_


#include <PiPei.h>

#include <Ppi/SecPlatformInformation.h>
#include <Ppi/TemporaryRamSupport.h>

#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiCpuLib.h>
#include <Library/PeCoffGetEntryPointLib.h>
#include <Library/PeCoffExtraActionLib.h>
#include <Library/DebugAgentLib.h>


#define SEC_IDT_ENTRY_COUNT  34

typedef struct _SEC_IDT_TABLE {
  //
  // Reserved 8 bytes preceding IDT to store EFI_PEI_SERVICES**, since IDT base
  // address should be 8-byte alignment.
  // Note: For IA32, only the 4 bytes immediately preceding IDT is used to store
  // EFI_PEI_SERVICES**
  //
  UINT64            PeiService;  
  UINT64            IdtTable[SEC_IDT_ENTRY_COUNT];
} SEC_IDT_TABLE;

/**
  Switch the stack in the temporary memory to the one in the permanent memory.

  This function must be invoked after the memory migration immediately. The relative
  position of the stack in the temporary and permanent memory is same.

  @param TemporaryMemoryBase  Base address of the temporary memory.
  @param PermenentMemoryBase  Base address of the permanent memory.
**/
VOID
EFIAPI
SecSwitchStack (
  UINT32   TemporaryMemoryBase,
  UINT32   PermenentMemoryBase
  );

/**
  This service of the TEMPORARY_RAM_SUPPORT_PPI that migrates temporary RAM into
  permanent memory.

  @param PeiServices            Pointer to the PEI Services Table.
  @param TemporaryMemoryBase    Source Address in temporary memory from which the SEC or PEIM will copy the
                                Temporary RAM contents.
  @param PermanentMemoryBase    Destination Address in permanent memory into which the SEC or PEIM will copy the
                                Temporary RAM contents.
  @param CopySize               Amount of memory to migrate from temporary to permanent memory.

  @retval EFI_SUCCESS           The data was successfully returned.
  @retval EFI_INVALID_PARAMETER PermanentMemoryBase + CopySize > TemporaryMemoryBase when
                                TemporaryMemoryBase > PermanentMemoryBase.

**/
EFI_STATUS
EFIAPI
SecTemporaryRamSupport (
  IN CONST EFI_PEI_SERVICES   **PeiServices,
  IN EFI_PHYSICAL_ADDRESS     TemporaryMemoryBase,
  IN EFI_PHYSICAL_ADDRESS     PermanentMemoryBase,
  IN UINTN                    CopySize
  );

/**
  Entry point to the C language phase of SEC. After the SEC assembly
  code has initialized some temporary memory and set up the stack,
  the control is transferred to this function.

  @param SizeOfRam           Size of the temporary memory available for use.
  @param TempRamBase         Base address of temporary ram
  @param BootFirmwareVolume  Base address of the Boot Firmware Volume.
**/
VOID
EFIAPI
SecStartup (
  IN UINT32                   SizeOfRam,
  IN UINT32                   TempRamBase,
  IN VOID                     *BootFirmwareVolume
  );

/**
  Find and return Pei Core entry point.

  It also find SEC and PEI Core file debug information. It will report them if
  remote debug is enabled.

  @param  BootFirmwareVolumePtr  Point to the boot firmware volume.
  @param  PeiCoreEntryPoint      Point to the PEI core entry point.

**/
VOID
EFIAPI
FindAndReportEntryPoints (
  IN  EFI_FIRMWARE_VOLUME_HEADER       *BootFirmwareVolumePtr,
  OUT EFI_PEI_CORE_ENTRY_POINT         *PeiCoreEntryPoint
  );

/**
  Autogenerated function that calls the library constructors for all of the module's
  dependent libraries.  This function must be called by the SEC Core once a stack has
  been established.

**/
VOID
EFIAPI
ProcessLibraryConstructorList (
  VOID
  );
  
#endif