Add initial version of Open Virtual Machine Firmware (OVMF) platform.

[mirror_edk2.git] / OvmfPkg / Sec / Ia32 / SecEntry.asm

      TITLE   SecEntry.asm\r
;------------------------------------------------------------------------------\r
;*\r
;*   Copyright 2006 - 2009, Intel Corporation\r
;*   All rights reserved. This program and the accompanying materials\r
;*   are licensed and made available under the terms and conditions of the BSD License\r
;*   which accompanies this distribution.  The full text of the license may be found at\r
;*   http://opensource.org/licenses/bsd-license.php\r
;*\r
;*   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
;*   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
;*\r
;*    CpuAsm.asm\r
;*\r
;*   Abstract:\r
;*\r
;------------------------------------------------------------------------------\r
\r
#include "SecMain.h"\r
\r
    .686\r
    .model  flat,C\r
    .code\r
\r
EXTERN SecCoreStartupWithStack:PROC\r
\r
;\r
;  SecCore Entry Point\r
;\r
;  Processor is in flat protected mode\r
;\r
;  @param  ESI  Pointer to SEC Core Entry Point (this function)\r
;  @param  EDI  Pointer to PEI Core Entry Point\r
;  @param  EBP  Pointer to the start of the Boot Firmware Volume\r
;\r
;  @return None\r
;\r
;\r
_ModuleEntryPoint PROC PUBLIC\r
\r
    ;\r
    ; Load temporary stack top at very low memory.  The C code\r
    ; can reload to a better address.\r
    ;\r
    mov     eax, INITIAL_TOP_OF_STACK\r
    mov     esp, eax\r
    nop\r
\r
    ;\r
    ; Call into C code\r
    ;\r
    push    eax\r
    push    edi\r
    push    esi\r
    push    ebp\r
    call    SecCoreStartupWithStack\r
\r
_ModuleEntryPoint ENDP\r
\r
END\r