OvmfPkg/Sec/Ia32/SecEntry.S

   1 #
   2 # ConvertAsm.py: Automatically generated from SecEntry.asm
   3 #
   4 #      TITLE   SecEntry.asm
   5
   6 #------------------------------------------------------------------------------
   7 #*
   8 #*   Copyright 2006 - 2009, Intel Corporation
   9 #*   All rights reserved. This program and the accompanying materials
  10 #*   are licensed and made available under the terms and conditions of the BSD License
  11 #*   which accompanies this distribution.  The full text of the license may be found at
  12 #*   http://opensource.org/licenses/bsd-license.php
  13 #*
  14 #*   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  15 #*   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  16 #*
  17 #*    CpuAsm.asm
  18 #*
  19 #*   Abstract:
  20 #*
  21 #------------------------------------------------------------------------------
  22
  23
  24 #include "SecMain.h"
  25
  26 #EXTERN ASM_PFX(SecCoreStartupWithStack)
  27
  28 #
  29 #  SecCore Entry Point
  30 #
  31 #  Processor is in flat protected mode
  32 #
  33 #  @param  ESI  Pointer to SEC Core Entry Point (this function)
  34 #  @param  EDI  Pointer to PEI Core Entry Point
  35 #  @param  EBP  Pointer to the start of the Boot Firmware Volume
  36 #
  37 #  @return None
  38 #
  39 #
  40 .intel_syntax
  41 ASM_GLOBAL ASM_PFX(_ModuleEntryPoint)
  42 ASM_PFX(_ModuleEntryPoint):
  43
  44     #
  45     # Load temporary stack top at very low memory.  The C code
  46     # can reload to a better address.
  47     #
  48     mov     eax, INITIAL_TOP_OF_STACK
  49     mov     esp, eax
  50     nop
  51
  52     #
  53     # Call into C code
  54     #
  55     push    eax
  56     push    edi
  57     push    esi
  58     push    ebp
  59     call    ASM_PFX(SecCoreStartupWithStack)
  60
  61
  62 #END
  63