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|
;------------------------------------------------------------------------------
;
; Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
; Abstract:
;
; Entry point for the coreboot UEFI payload.
;
;------------------------------------------------------------------------------
SECTION .text
; C Functions
extern ASM_PFX(SecStartup)
; Pcds
extern ASM_PFX(PcdGet32 (PcdPayloadFdMemBase))
extern ASM_PFX(PcdGet32 (PcdPayloadStackTop))
;
; SecCore Entry Point
;
; Processor is in flat protected mode
;
; @param[in] EAX Initial value of the EAX register (BIST: Built-in Self Test)
; @param[in] DI 'BP': boot-strap processor, or 'AP': application processor
; @param[in] EBP Pointer to the start of the Boot Firmware Volume
;
; @return None This routine does not return
;
global ASM_PFX(_ModuleEntryPoint)
ASM_PFX(_ModuleEntryPoint):
;
; Disable all the interrupts
;
cli
;
; Save the Payload HOB base address before switching the stack
;
mov eax, [esp + 4]
;
; Construct the temporary memory at 0x80000, length 0x10000
;
mov esp, DWORD [ASM_PFX(PcdGet32 (PcdPayloadStackTop))]
;
; Push the Payload HOB base address onto new stack
;
push eax
;
; Pass BFV into the PEI Core
;
push DWORD [ASM_PFX(PcdGet32 (PcdPayloadFdMemBase))]
;
; Pass stack base into the PEI Core
;
push BASE_512KB
;
; Pass stack size into the PEI Core
;
push SIZE_64KB
;
; Pass Control into the PEI Core
;
call ASM_PFX(SecStartup)
;
; Should never return
;
jmp $
|
