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|
;------------------------------------------------------------------------------
;
; Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
; Module Name:
;
; ResetVec.nasmb
;
; Abstract:
;
; Reset Vector Data structure
; This structure is located at 0xFFFFFFC0
;
;------------------------------------------------------------------------------
; .stack 0x0
; SECTION .text
USE16
;
; The layout of this file is fixed. The build tool makes assumption of the layout.
;
ORG 0h
;
; Reserved
;
ReservedData: DD 0eeeeeeeeh, 0eeeeeeeeh
TIMES 0x10-($-$$) DB 0
;
; This is located at 0xFFFFFFD0h
;
mov di, "PA"
jmp ApStartup
TIMES 0x20-($-$$) DB 0
;
; Pointer to the entry point of the PEI core
; It is located at 0xFFFFFFE0, and is fixed up by some build tool
; So if the value 8..1 appears in the final FD image, tool failure occurs.
;
PeiCoreEntryPoint: DD 87654321h
;
; This is the handler for all kinds of exceptions. Since it's for debugging
; purpose only, nothing except a dead loop would be done here. Developers could
; analyze the cause of the exception if a debugger had been attached.
;
global ASM_PFX(InterruptHandler)
ASM_PFX(InterruptHandler):
jmp $
iret
TIMES 0x30-($-$$) DB 0
;
; For IA32, the reset vector must be at 0xFFFFFFF0, i.e., 4G-16 byte
; Execution starts here upon power-on/platform-reset.
;
ResetHandler:
nop
nop
ApStartup:
;
; Jmp Rel16 instruction
; Use machine code directly in case of the assembler optimization
; SEC entry point relative address will be fixed up by some build tool.
;
; Typically, SEC entry point is the function _ModuleEntryPoint() defined in
; SecEntry.asm
;
DB 0e9h
DW -3
TIMES 0x38-($-$$) DB 0
;
; Ap reset vector segment address is at 0xFFFFFFF8
; This will be fixed up by some build tool,
; so if the value 1..8 appears in the final FD image,
; tool failure occurs
;
ApSegAddress: dd 12345678h
TIMES 0x3c-($-$$) DB 0
;
; BFV Base is at 0xFFFFFFFC
; This will be fixed up by some build tool,
; so if the value 1..8 appears in the final FD image,
; tool failure occurs.
;
BfvBase: DD 12345678h
;
; Nothing can go here, otherwise the layout of this file would change.
;
|
