audk/OvmfPkg/Sec/X64/SecEntry.nasm

57 lines
1.7 KiB
NASM

;------------------------------------------------------------------------------
;*
;* Copyright (c) 2006 - 2013, 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>
DEFAULT REL
SECTION .text
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
;
global ASM_PFX(_ModuleEntryPoint)
ASM_PFX(_ModuleEntryPoint):
;
; Load temporary RAM stack based on PCDs
;
%define SEC_TOP_OF_STACK (FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) + \
FixedPcdGet32 (PcdOvmfSecPeiTempRamSize))
mov rsp, SEC_TOP_OF_STACK
nop
;
; Setup parameters and call SecCoreStartupWithStack
; rcx: BootFirmwareVolumePtr
; rdx: TopOfCurrentStack
;
mov rcx, rbp
mov rdx, rsp
sub rsp, 0x20
call ASM_PFX(SecCoreStartupWithStack)