# TITLE SecEntry.asm

#------------------------------------------------------------------------------

#*

#* Copyright (c) 2006 - 2009, 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.

#*

#* CpuAsm.asm

#*

#* Abstract:

#*

#------------------------------------------------------------------------------

#include <Base.h>

#EXTERN ASM_PFX(SecCoreStartupWithStack)

#

# SecCore Entry Point

#

# Processor is in flat protected mode

#

# @param[in] RAX Initial value of the EAX register (BIST: Built-in Self Test)

# @param[in] DI 'BP': boot-strap processor, or 'AP': application processor

# @param[in] RBP Pointer to the start of the Boot Firmware Volume

#

# @return None This routine does not return

#

ASM_GLOBAL ASM_PFX(_ModuleEntryPoint)

ASM_PFX(_ModuleEntryPoint):

#

# Load temporary stack top at very low memory. The C code

# can reload to a better address.

#

movq $BASE_512KB, %rsp

nop

#

# Setup parameters and call SecCoreStartupWithStack

# rcx: BootFirmwareVolumePtr

# rdx: TopOfCurrentStack

#

movq %rbp, %rcx

movq %rsp, %rdx

subq $0x20, %rsp

call ASM_PFX(SecCoreStartupWithStack)