IntelFspPkg/FspSecCore/Vtf0/Ia16/ResetVec.asm16

   1 ;; @file
   2 ;  Reset Vector Data structure
   3 ;  This structure is located at 0xFFFFFFC0
   4 ;
   5 ; Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
   6 ; This program and the accompanying materials
   7 ; are licensed and made available under the terms and conditions of the BSD License
   8 ; which accompanies this distribution.  The full text of the license may be found at
   9 ; http://opensource.org/licenses/bsd-license.php.
  10 ;
  11 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13 ;
  14 ;;
  15
  16 BITS    16
  17
  18
  19 ;
  20 ; The layout of this file is fixed. The build tool makes assumption of the layout.
  21 ;
  22
  23 ORG     0x0
  24 ;
  25 ; Reserved
  26 ;
  27 ReservedData:         DD 0eeeeeeeeh, 0eeeeeeeeh
  28
  29  ;  ORG     0x10
  30  TIMES 0x10-($-$$) DB 0
  31 ;
  32 ; This is located at 0xFFFFFFD0h
  33 ;
  34     mov     di, "AP"
  35     jmp     ApStartup
  36
  37  ;   ORG     0x20
  38
  39  TIMES 0x20-($-$$) DB 0
  40
  41 ; Pointer to the entry point of the PEI core
  42 ; It is located at 0xFFFFFFE0, and is fixed up by some build tool
  43 ; So if the value 8..1 appears in the final FD image, tool failure occurs.
  44 ;
  45 PeiCoreEntryPoint:       DD      0x12345678
  46
  47 ;
  48 ; This is the handler for all kinds of exceptions. Since it's for debugging
  49 ; purpose only, nothing except a deadloop would be done here. Developers could
  50 ; analyze the cause of the exception if a debugger had been attached.
  51 ;
  52 InterruptHandler:
  53     jmp     $
  54     iret
  55
  56   ;  ORG     0x30
  57  TIMES 0x30-($-$$) DB 0
  58 ;
  59 ; For IA32, the reset vector must be at 0xFFFFFFF0, i.e., 4G-16 byte
  60 ; Execution starts here upon power-on/platform-reset.
  61 ;
  62 ResetHandler:
  63     nop
  64     nop
  65
  66 ApStartup:
  67     ;
  68     ; Jmp Rel16 instruction
  69     ; Use machine code directly in case of the assembler optimization
  70     ; SEC entry point relatvie address will be fixed up by some build tool.
  71     ;
  72     ; Typically, SEC entry point is the function _ModuleEntryPoint() defined in
  73     ; SecEntry.asm
  74     ;
  75     DB      0x0e9
  76     DW      -3
  77
  78   ; ORG     0x38
  79
  80  TIMES 0x38-($-$$) DB 0
  81 ;
  82 ; Ap reset vector segment address is at 0xFFFFFFF8
  83 ; This will be fixed up by some build tool,
  84 ; so if the value 1..8 appears in the final FD image,
  85 ; tool failure occurs
  86 ;
  87 ApSegAddress:    dd      0x12345678
  88
  89  ;   ORG     0x3c
  90  TIMES 0x3c-($-$$) DB 0
  91 ;
  92 ; BFV Base is at 0xFFFFFFFC
  93 ; This will be fixed up by some build tool,
  94 ; so if the value 1..8 appears in the final FD image,
  95 ; tool failure occurs.
  96 ;
  97 BfvBase:     DD      0x12345678
  98
  99 ;
 100 ; Nothing can go here, otherwise the layout of this file would change.
 101 ;
 102
 103    ; END