IntelFrameworkModulePkg/Csm/LegacyBiosDxe/Ipf/IpfThunk.h

   1 /** @file
   2
   3 Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
   4
   5 This program and the accompanying materials
   6 are licensed and made available under the terms and conditions
   7 of the BSD License which accompanies this distribution.  The
   8 full text of the license may be found at
   9 http://opensource.org/licenses/bsd-license.php
  10
  11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 #ifndef _IPF_THUNK_H_
  17 #define _IPF_THUNK_H_
  18
  19 #include "LegacyBiosInterface.h"
  20 #include <IndustryStandard/Sal.h>
  21
  22 /**
  23   Template of real mode code.
  24
  25   @param  CodeStart          Start address of code.
  26   @param  CodeEnd            End address of code
  27   @param  ReverseThunkStart  Start of reverse thunk.
  28   @param  IntThunk           Low memory thunk.
  29
  30 **/
  31 VOID
  32 RealModeTemplate (
  33   OUT UINTN          *CodeStart,
  34   OUT UINTN          *CodeEnd,
  35   OUT UINTN          *ReverseThunkStart,
  36   LOW_MEMORY_THUNK   *IntThunk
  37   );
  38
  39 /**
  40   Register physical address of Esal Data Area
  41
  42   @param  ReverseThunkCodeAddress Reverse Thunk Address
  43   @param  IntThunkAddress         IntThunk Address
  44
  45   @retval EFI_SUCCESS             ESAL data area set successfully.
  46
  47 **/
  48 EFI_STATUS
  49 EsalSetSalDataArea (
  50   IN UINTN    ReverseThunkCodeAddress,
  51   IN UINTN    IntThunkAddress
  52   );
  53
  54 /**
  55  Get address of reverse thunk.
  56
  57  @retval EFI_SAL_SUCCESS  Address of reverse thunk returned successfully.
  58
  59 **/
  60 SAL_RETURN_REGS
  61 EsalGetReverseThunkAddress (
  62   VOID
  63   );
  64
  65 typedef struct {
  66   UINT32  Eax;    // 0
  67   UINT32  Ecx;    // 4
  68   UINT32  Edx;    // 8
  69   UINT32  Ebx;    // 12
  70   UINT32  Esp;    // 16
  71   UINT32  Ebp;    // 20
  72   UINT32  Esi;    // 24
  73   UINT32  Edi;    // 28
  74   UINT32  Eflag;  // 32
  75   UINT32  Eip;    // 36
  76   UINT16  Cs;     // 40
  77   UINT16  Ds;     // 42
  78   UINT16  Es;     // 44
  79   UINT16  Fs;     // 46
  80   UINT16  Gs;     // 48
  81   UINT16  Ss;     // 50
  82 } IPF_DWORD_REGS;
  83
  84 /**
  85   Entrypoint of IA32 code.
  86
  87   @param  CallTypeData  Data of call type
  88   @param  DwordRegister Register set of IA32 general registers
  89                         and segment registers
  90   @param  StackPointer  Stack pointer.
  91   @param  StackSize     Size of stack.
  92
  93 **/
  94 VOID
  95 EfiIaEntryPoint (
  96   UINT64           CallTypeData,
  97   IPF_DWORD_REGS   *DwordRegister,
  98   UINT64           StackPointer,
  99   UINT64           StackSize
 100   );
 101
 102 #endif