2014-01-21 20:38:43 +01:00
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# TITLE SecEntry.asm
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#------------------------------------------------------------------------------
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#*
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#* Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
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#* This program and the accompanying materials
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#* are licensed and made available under the terms and conditions of the BSD License
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#* which accompanies this distribution. The full text of the license may be found at
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#* http://opensource.org/licenses/bsd-license.php
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#*
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#* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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#* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#*
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#* CpuAsm.asm
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#*
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#* Abstract:
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#*
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#------------------------------------------------------------------------------
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#include <Base.h>
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#EXTERN ASM_PFX(SecCoreStartupWithStack)
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#
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# SecCore Entry Point
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#
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# Processor is in flat protected mode
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#
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# @param[in] RAX Initial value of the EAX register (BIST: Built-in Self Test)
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# @param[in] DI 'BP': boot-strap processor, or 'AP': application processor
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# @param[in] RBP Pointer to the start of the Boot Firmware Volume
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#
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# @return None This routine does not return
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#
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ASM_GLOBAL ASM_PFX(_ModuleEntryPoint)
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ASM_PFX(_ModuleEntryPoint):
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#
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# Load temporary stack top at very low memory. The C code
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# can reload to a better address.
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#
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.set SEC_TOP_OF_STACK, FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) + \
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FixedPcdGet32 (PcdOvmfSecPeiTempRamSize)
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movq $SEC_TOP_OF_STACK, %rsp
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nop
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#
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# Setup parameters and call SecCoreStartupWithStack
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# rcx: BootFirmwareVolumePtr
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# rdx: TopOfCurrentStack
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#
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movq %rbp, %rcx
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movq %rsp, %rdx
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subq $0x20, %rsp
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call ASM_PFX(SecCoreStartupWithStack)
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