audk/OvmfPkg/Sec/X64/SecEntry.S

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ArmAsm
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# 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 "SecMain.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 $INITIAL_TOP_OF_STACK, %rsp
nop
#
# Setup parameters and call SecCoreStartupWithStack
# rcx: BootFirmwareVolumePtr
# rdx: TopOfCurrentStack
#
movq %rbp, %rcx
movq %rsp, %rdx
subq $0x20, %rsp
call ASM_PFX(SecCoreStartupWithStack)