| 1 | ; $Id: bs3kit.mac 59210 2015-12-22 11:30:24Z vboxsync $
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| 2 | ;; @file
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| 3 | ; BS3Kit - structures, symbols, macros and stuff.
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| 4 | ;
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| 5 |
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| 6 | ;
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| 7 | ; Copyright (C) 2007-2015 Oracle Corporation
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| 8 | ;
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| 9 | ; This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | ; available from http://www.virtualbox.org. This file is free software;
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| 11 | ; you can redistribute it and/or modify it under the terms of the GNU
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| 12 | ; General Public License (GPL) as published by the Free Software
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| 13 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | ;
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| 17 | ; The contents of this file may alternatively be used under the terms
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| 18 | ; of the Common Development and Distribution License Version 1.0
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| 19 | ; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | ; VirtualBox OSE distribution, in which case the provisions of the
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| 21 | ; CDDL are applicable instead of those of the GPL.
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| 22 | ;
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| 23 | ; You may elect to license modified versions of this file under the
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| 24 | ; terms and conditions of either the GPL or the CDDL or both.
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| 25 | ;
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| 26 |
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| 27 | %ifndef ___bs3kit_mac___
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| 28 | %define ___bs3kit_mac___
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| 29 |
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| 30 | ;
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| 31 | ; Before we can include anything, we need to override NAME and switch section.
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| 32 | ; If we don't do the latter we end up with an unused 'text' section.
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| 33 | ;
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| 34 |
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| 35 | ; Drop the asmdefs-first.mac header for native bs3kit files.
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| 36 | %undef RT_ASMDEFS_INC_FIRST_FILE
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| 37 |
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| 38 | ;; Wrapper around BITS.
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| 39 | ; Updates __BITS__ (built-in variable in nasm, we work it for yasm).
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| 40 | ; @param %1 The CPU bit count: 16, 32 or 64
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| 41 | ; @remarks ARCH_BITS is not modified and will remain what it was on the
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| 42 | ; assembler command line.
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| 43 | %macro BS3_SET_BITS 1
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| 44 | BITS %1
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| 45 |
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| 46 | %ifdef __YASM__
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| 47 | %undef __BITS__
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| 48 | %define __BITS__ %1
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| 49 | %endif
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| 50 |
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| 51 | %undef BS3_NAME_UNDERSCORE
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| 52 | %if %1 == 64
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| 53 | %define BS3_NAME_UNDERSCORE
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| 54 | %else
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| 55 | %define BS3_NAME_UNDERSCORE _
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| 56 | %endif
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| 57 |
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| 58 | %undef BS3_ONLY_16BIT
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| 59 | %if %1 == 16
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| 60 | %define BS3_ONLY_16BIT(a_Expr) a_Expr
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| 61 | %else
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| 62 | %define BS3_ONLY_16BIT(a_Expr)
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| 63 | %endif
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| 64 |
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| 65 | %undef BS3_WRT_RIP
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| 66 | %if %1 == 64
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| 67 | %define BS3_WRT_RIP wrt rip
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| 68 | %else
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| 69 | %define BS3_WRT_RIP
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| 70 | %endif
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| 71 | %endmacro
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| 72 |
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| 73 | ;; Emulate the __BITS__ macro in NASM 2.0+. Follows BS3_SET_BITS.
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| 74 | %ifdef __YASM__
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| 75 | %define __BITS__ ARCH_BITS
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| 76 | %endif
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| 77 |
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| 78 | ;; Mostly internal macro. Follows BS3_SET_BITS.
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| 79 | %if ARCH_BITS == 64
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| 80 | %define BS3_NAME_UNDERSCORE
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| 81 | %else
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| 82 | %define BS3_NAME_UNDERSCORE _
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| 83 | %endif
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| 84 |
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| 85 | ;; For RIP relative addressing in 64-bit mode and absolute addressing in
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| 86 | ; other modes. Follows BS3_SET_BITS.
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| 87 | %if ARCH_BITS == 64
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| 88 | %define BS3_WRT_RIP wrt rip
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| 89 | %else
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| 90 | %define BS3_WRT_RIP
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| 91 | %endif
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| 92 |
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| 93 | ;; For segment overrides and stuff. Follows BS3_SET_BITS.
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| 94 | %if ARCH_BITS == 16
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| 95 | %define BS3_ONLY_16BIT(a_Expr) a_Expr
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| 96 | %else
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| 97 | %define BS3_ONLY_16BIT(a_Expr)
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| 98 | %endif
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| 99 |
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| 100 | ;;
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| 101 | ; For instruction that should only be emitted in 16-bit mode. Follows BS3_SET_BITS.
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| 102 | %macro BS3_ONLY_16BIT_STMT 1+
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| 103 | %if __BITS__ == 16
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| 104 | %1
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| 105 | %endif
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| 106 | %endmacro
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| 107 |
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| 108 | ;;
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| 109 | ; For instruction that should only be emitted in 32-bit mode. Follows BS3_SET_BITS.
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| 110 | %macro BS3_ONLY_32BIT_STMT 1+
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| 111 | %if __BITS__ == 32
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| 112 | %1
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| 113 | %endif
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| 114 | %endmacro
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| 115 |
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| 116 | ;;
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| 117 | ; For instruction that should only be emitted in 64-bit mode. Follows BS3_SET_BITS.
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| 118 | %macro BS3_ONLY_64BIT_STMT 1+
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| 119 | %if __BITS__ == 64
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| 120 | %1
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| 121 | %endif
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| 122 | %endmacro
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| 123 |
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| 124 |
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| 125 |
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| 126 | ;; @name Segment definitions.
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| 127 | ;; @{
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| 128 |
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| 129 | %ifdef ASM_FORMAT_OMF
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| 130 | ; !!HACK ALERT!!
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| 131 | ;
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| 132 | ; To make FLAT actually be flat, i.e. have a base of 0 rather than the same as
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| 133 | ; the target (?) segment, we tweak it a little bit here. We associate a segment
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| 134 | ; with it so that we can get at it in the class/segment ordering directives
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| 135 | ; we pass to the linker. The segment does not contain any data or anything, it
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| 136 | ; is just an empty one which we assign the address of zero.
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| 137 | ;
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| 138 | ; Look for 'clname BS3FLAT segaddr=0x0000' and 'segment BS3FLAT segaddr=0x0000'
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| 139 | ; in the makefile.
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| 140 | ;
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| 141 | ; !!HACK ALERT!!
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| 142 | segment BS3FLAT use32 class=BS3FLAT
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| 143 | GROUP FLAT BS3FLAT
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| 144 | %endif
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| 145 |
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| 146 | %macro BS3_BEGIN_TEXT16 0
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| 147 | %ifndef BS3_BEGIN_TEXT16_NOT_FIRST
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| 148 | %define BS3_BEGIN_TEXT16_NOT_FIRST
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| 149 | %ifdef ASM_FORMAT_ELF
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| 150 | section BS3TEXT16 align=2 progbits alloc exec nowrite
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| 151 | %else
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| 152 | section BS3TEXT16 align=2 CLASS=BS3CODE16 PUBLIC USE16
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| 153 | %endif
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| 154 | %else
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| 155 | section BS3TEXT16
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| 156 | %endif
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| 157 | BS3_SET_BITS 16
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| 158 | %endmacro
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| 159 |
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| 160 | %macro BS3_BEGIN_DATA16 0
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| 161 | %ifndef BS3_BEGIN_DATA16_NOT_FIRST
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| 162 | %define BS3_BEGIN_DATA16_NOT_FIRST
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| 163 | %ifdef ASM_FORMAT_ELF
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| 164 | section BS3DATA16 align=2 progbits alloc noexec write
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| 165 | %else
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| 166 | section BS3DATA16 align=2 CLASS=FAR_DATA PUBLIC USE16
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| 167 | %endif
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| 168 | %else
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| 169 | section BS3DATA16
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| 170 | %endif
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| 171 | BS3_SET_BITS 16
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| 172 | %endmacro
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| 173 |
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| 174 | %macro BS3_BEGIN_TEXT32 0
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| 175 | %ifndef BS3_BEGIN_TEXT32_NOT_FIRST
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| 176 | %define BS3_BEGIN_TEXT32_NOT_FIRST
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| 177 | %ifdef ASM_FORMAT_ELF
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| 178 | section BS3TEXT32 align=1 progbits alloc exec nowrite
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| 179 | %else
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| 180 | section BS3TEXT32 align=1 CLASS=BS3CODE32 PUBLIC USE32 FLAT
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| 181 | %endif
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| 182 | %else
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| 183 | section BS3TEXT32
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| 184 | %endif
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| 185 | BS3_SET_BITS 32
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| 186 | %endmacro
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| 187 |
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| 188 | %macro BS3_BEGIN_DATA32 0
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| 189 | %ifndef BS3_BEGIN_DATA32_NOT_FIRST
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| 190 | %define BS3_BEGIN_DATA32_NOT_FIRST
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| 191 | %ifdef ASM_FORMAT_ELF
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| 192 | section BS3DATA32 align=16 progbits alloc noexec write
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| 193 | %else
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| 194 | section BS3DATA32 align=16 CLASS=FAR_DATA PUBLIC USE32 ;FLAT - compiler doesn't make data flat.
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| 195 | %endif
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| 196 | %else
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| 197 | section BS3DATA32
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| 198 | %endif
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| 199 | BS3_SET_BITS 32
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| 200 | %endmacro
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| 201 |
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| 202 | %macro BS3_BEGIN_TEXT64 0
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| 203 | %ifndef BS3_BEGIN_TEXT64_NOT_FIRST
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| 204 | %define BS3_BEGIN_TEXT64_NOT_FIRST
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| 205 | %ifdef ASM_FORMAT_ELF
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| 206 | section BS3TEXT64 align=1 progbits alloc exec nowrite
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| 207 | %else
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| 208 | section BS3TEXT64 align=1 CLASS=CODE PUBLIC USE32 FLAT ; class=CODE here because of 64-bit cl and/or wlink.exe
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| 209 | %endif
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| 210 | %else
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| 211 | section BS3TEXT64
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| 212 | %endif
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| 213 | BS3_SET_BITS 64
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| 214 | %endmacro
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| 215 |
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| 216 | %macro BS3_BEGIN_DATA64 0
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| 217 | %ifndef BS3_BEGIN_DATA64_NOT_FIRST
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| 218 | %define BS3_BEGIN_DATA64_NOT_FIRST
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| 219 | %ifdef ASM_FORMAT_ELF
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| 220 | section BS3DATA64 align=16 progbits alloc noexec write
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| 221 | %else
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| 222 | section BS3DATA64 align=16 CLASS=DATA PUBLIC USE32 ;FLAT (see DATA32) ; class=DATA here because of 64-bit cl and/or wlink.exe
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| 223 | %endif
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| 224 | %else
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| 225 | section BS3DATA64
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| 226 | %endif
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| 227 | BS3_SET_BITS 64
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| 228 | %endmacro
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| 229 |
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| 230 | ;; The system data segment containing the GDT, TSSes and IDTs.
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| 231 | %macro BS3_BEGIN_SYSTEM16 0
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| 232 | %ifndef BS3_BEGIN_SYSTEM16_NOT_FIRST
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| 233 | %define BS3_BEGIN_SYSTEM16_NOT_FIRST
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| 234 | %ifdef ASM_FORMAT_ELF
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| 235 | section BS3SYSTEM16 align=16 progbits alloc noexec write
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| 236 | %else
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| 237 | section BS3SYSTEM16 align=16 CLASS=BS3SYSTEM16 PUBLIC USE16
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| 238 | %endif
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| 239 | %else
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| 240 | section BS3SYSTEM16
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| 241 | %endif
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| 242 | BS3_SET_BITS 16
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| 243 | %endmacro
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| 244 |
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| 245 | ;; Default text section.
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| 246 | %macro BS3_BEGIN_DEFAULT_TEXT 0
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| 247 | %if ARCH_BITS == 16
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| 248 | BS3_BEGIN_TEXT16
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| 249 | %elif ARCH_BITS == 32
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| 250 | BS3_BEGIN_TEXT32
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| 251 | %elif ARCH_BITS == 64
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| 252 | BS3_BEGIN_TEXT64
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| 253 | %else
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| 254 | %error "ARCH_BITS must be defined as either 16, 32, or 64!"
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| 255 | INVALID_ARCH_BITS
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| 256 | %endif
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| 257 | %endmacro
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| 258 |
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| 259 | ;; @}
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| 260 |
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| 261 |
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| 262 | ;
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| 263 | ; Now, ditch the default 'text' section and define our own NAME macro.
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| 264 | ;
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| 265 | %ifndef ASM_FORMAT_BIN
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| 266 | BS3_BEGIN_DEFAULT_TEXT
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| 267 | BS3_BEGIN_DEFAULT_TEXT ; stupid nasm automagically repeats the segment attributes.
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| 268 | %endif
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| 269 |
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| 270 | ;; When using watcom + OMF, we're using __cdecl by default, which
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| 271 | ; get an underscore added in front.
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| 272 | %ifdef ASM_FORMAT_OMF
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| 273 | %define NAME(name) _ %+ NAME_OVERLOAD(name)
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| 274 | %endif
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| 275 |
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| 276 |
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| 277 | ;
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| 278 | ; Include the standard headers from iprt.
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| 279 | ;
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| 280 |
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| 281 |
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| 282 | %include "iprt/asmdefs.mac"
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| 283 | %include "iprt/x86.mac"
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| 284 |
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| 285 |
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| 286 | ;;
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| 287 | ; Extern macro which mangles the name using NAME().
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| 288 | %macro EXTERN 1
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| 289 | extern NAME(%1)
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| 290 | %endmacro
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| 291 |
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| 292 | ;;
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| 293 | ; Mangles a common name according to the current cpu bit count.
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| 294 | ; @remarks Requires the use of the BS3_SET_BITS macro instead of the BITS directive.
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| 295 | %define BS3_CMN_NM(a_Name) BS3_NAME_UNDERSCORE %+ a_Name %+ _c %+ __BITS__
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| 296 |
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| 297 | ;;
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| 298 | ; Extern macro which mangles the common name correctly, redefining the unmangled
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| 299 | ; name to the mangled one for ease of use.
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| 300 | ;
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| 301 | ; @param %1 The unmangled common name.
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| 302 | ;
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| 303 | ; @remarks Must enter the segment in which this name is defined.
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| 304 | ;
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| 305 | %macro BS3_EXTERN_CMN 1
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| 306 | extern BS3_CMN_NM(%1)
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| 307 | %undef %1
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| 308 | %define %1 BS3_CMN_NM(%1)
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| 309 | %endmacro
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| 310 |
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| 311 | ;;
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| 312 | ; Mangles a 16-bit and 32-bit accessible data name.
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| 313 | ; @remarks Requires the use of the BS3_SET_BITS macro instead of the BITS directive.
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| 314 | %define BS3_DATA_NM(a_Name) _ %+ a_Name
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| 315 |
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| 316 | ;;
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| 317 | ; Extern macro which mangles a DATA16 symbol correctly, redefining the
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| 318 | ; unmangled name to the mangled one for ease of use.
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| 319 | ;
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| 320 | ; @param %1 The unmangled common name.
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| 321 | ;
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| 322 | ; @remarks Will change to the DATA16 segment, use must switch back afterwards!
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| 323 | ;
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| 324 | %macro BS3_EXTERN_DATA16 1
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| 325 | BS3_BEGIN_DATA16
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| 326 | extern _ %+ %1
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| 327 | %undef %1
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| 328 | %define %1 _ %+ %1
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| 329 | %endmacro
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| 330 |
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| 331 | ;;
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| 332 | ; Extern macro which mangles a BS3SYSTEM16 symbol correctly, redefining the
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| 333 | ; unmangled name to the mangled one for ease of use.
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| 334 | ;
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| 335 | ; @param %1 The unmangled common name.
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| 336 | ;
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| 337 | ; @remarks Will change to the SYSTEM16 segment, use must switch back afterwards!
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| 338 | ;
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| 339 | %macro BS3_EXTERN_SYSTEM16 1
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| 340 | BS3_BEGIN_SYSTEM16
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| 341 | extern _ %+ %1
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| 342 | %undef %1
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| 343 | %define %1 _ %+ %1
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| 344 | %endmacro
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| 345 |
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| 346 |
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| 347 | ;;
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| 348 | ; Global name with ELF attributes and size.
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| 349 | ;
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| 350 | ; This differs from GLOBALNAME_EX in that it expects a mangled symbol name,
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| 351 | ; and allows for nasm style symbol size expressions.
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| 352 | ;
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| 353 | ; @param %1 The mangled name.
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| 354 | ; @param %2 Symbol attributes.
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| 355 | ; @param %3 The size expression.
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| 356 | ;
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| 357 | %macro BS3_GLOBAL_NAME_EX 3
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| 358 | %ifdef ASM_FORMAT_ELF
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| 359 | %ifdef __NASM__
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| 360 | global %1:%2 %3
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| 361 | %else
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| 362 | global %1:%2
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| 363 | %endif
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| 364 | %else
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| 365 | global %1
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| 366 | %endif
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| 367 | %1:
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| 368 | %endmacro
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| 369 |
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| 370 | ;;
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| 371 | ; Global data unmangled label.
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| 372 | ;
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| 373 | ; @param %1 The unmangled name.
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| 374 | ; @param %2 The size (0 is fine).
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| 375 | ;
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| 376 | %macro BS3_GLOBAL_DATA 2
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| 377 | BS3_GLOBAL_NAME_EX BS3_DATA_NM(%1), , %2
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| 378 | %endmacro
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| 379 |
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| 380 | ;;
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| 381 | ; Starts a procedure.
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| 382 | ;
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| 383 | ; This differs from BEGINPROC in that it expects a mangled symbol name and
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| 384 | ; does the NASM symbol size stuff.
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| 385 | ;
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| 386 | ; @param %1 The mangled name.
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| 387 | ;
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| 388 | %macro BS3_PROC_BEGIN 1
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| 389 | BS3_GLOBAL_NAME_EX %1, function, (%1 %+ _EndProc - %1)
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| 390 | %endmacro
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| 391 |
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| 392 | ;;
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| 393 | ; Ends a procedure.
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| 394 | ;
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| 395 | ; Counter part to BS3_PROC_BEGIN.
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| 396 | ;
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| 397 | ; @param %1 The mangled name.
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| 398 | ;
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| 399 | %macro BS3_PROC_END 1
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| 400 | BS3_GLOBAL_NAME_EX %1 %+ _EndProc, function hidden, (%1 %+ _EndProc - %1)
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| 401 | %ifdef ASM_FORMAT_ELF
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| 402 | %ifdef __YASM__
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| 403 | size %1 %1 %+ _EndProc - %1
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| 404 | size %1 %+ _EndProc 0
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| 405 | %endif
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| 406 | %endif
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| 407 | %endmacro
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| 408 |
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| 409 |
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| 410 | ;; Convenience macro for defining common procedures.
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| 411 | %macro BS3_PROC_BEGIN_CMN 1
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| 412 | BS3_PROC_BEGIN BS3_CMN_NM(%1)
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| 413 | %endmacro
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| 414 |
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| 415 | ;; Convenience macro for defining common procedures.
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| 416 | %macro BS3_PROC_END_CMN 1
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| 417 | BS3_PROC_END BS3_CMN_NM(%1)
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| 418 | %endmacro
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| 419 |
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| 420 |
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| 421 | ;; Convenience macro for defining mode specific procedures.
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| 422 | %macro BS3_PROC_BEGIN_MODE 1
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| 423 | BS3_PROC_BEGIN TMPL_NM(%1)
|
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| 424 | %endmacro
|
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| 425 |
|
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| 426 | ;; Convenience macro for defining mode specific procedures.
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| 427 | %macro BS3_PROC_END_MODE 1
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| 428 | BS3_PROC_END TMPL_NM(%1)
|
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| 429 | %endmacro
|
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| 430 |
|
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| 431 |
|
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| 432 | ;;
|
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| 433 | ; Prologue hacks for 64-bit code.
|
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| 434 | ;
|
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| 435 | ; This saves the four register parameters onto the stack so we can pretend
|
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| 436 | ; the calling convention is stack based. The 64-bit calling convension is
|
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| 437 | ; the microsoft one, so this is straight forward.
|
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| 438 | ;
|
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| 439 | ; Pairs with BS3_CALL_CONV_EPILOG.
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| 440 | ;
|
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| 441 | ; @param %1 The number of parameters.
|
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| 442 | ;
|
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| 443 | ; @remarks Must be invoked before any stack changing instructions are emitted.
|
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| 444 | ;
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| 445 | %macro BS3_CALL_CONV_PROLOG 1
|
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| 446 | %undef BS3_CALL_CONV_PROLOG_PARAMS
|
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| 447 | %define BS3_CALL_CONV_PROLOG_PARAMS %1
|
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| 448 | %if __BITS__ == 64
|
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| 449 | %if %1 >= 1
|
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| 450 | mov [rsp + 008h], rcx
|
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| 451 | %elifdef BS3_STRICT
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| 452 | and qword [rsp + 008h], 1
|
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| 453 | %endif
|
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| 454 | %if %1 >= 2
|
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| 455 | mov [rsp + 010h], rdx
|
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| 456 | %elifdef BS3_STRICT
|
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| 457 | and qword [rsp + 010h], 2
|
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| 458 | %endif
|
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| 459 | %if %1 >= 3
|
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| 460 | mov [rsp + 018h], r8
|
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| 461 | %elifdef BS3_STRICT
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| 462 | and qword [rsp + 018h], 3
|
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| 463 | %endif
|
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| 464 | %if %1 >= 4
|
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| 465 | mov [rsp + 020h], r9
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| 466 | %elifdef BS3_STRICT
|
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| 467 | and qword [rsp + 020h], 4
|
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| 468 | %endif
|
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| 469 | %endif
|
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| 470 | %endmacro
|
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| 471 |
|
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| 472 | ;;
|
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| 473 | ; Epilogue hacks for 64-bit code.
|
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| 474 | ;
|
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| 475 | ; Counter part to BS3_CALL_CONV_PROLOG.
|
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| 476 | ;
|
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| 477 | ; @param %1 The number of parameters.
|
|---|
| 478 | ;
|
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| 479 | ; @remarks Must be invoked right before the return instruction as it uses RSP.
|
|---|
| 480 | ;
|
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| 481 | %macro BS3_CALL_CONV_EPILOG 1
|
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| 482 | %if BS3_CALL_CONV_PROLOG_PARAMS != %1
|
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| 483 | %error "BS3_CALL_CONV_EPILOG argument differs from BS3_CALL_CONV_PROLOG."
|
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| 484 | %endif
|
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| 485 | %if __BITS__ == 64
|
|---|
| 486 | %ifdef BS3_STRICT
|
|---|
| 487 | mov dword [rsp + 008h], 31h
|
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| 488 | mov dword [rsp + 010h], 32h
|
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| 489 | mov dword [rsp + 018h], 33h
|
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| 490 | mov dword [rsp + 020h], 34h
|
|---|
| 491 | %endif
|
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| 492 | %endif
|
|---|
| 493 | %endmacro
|
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| 494 |
|
|---|
| 495 | ;;
|
|---|
| 496 | ; Wrapper for the call instruction that hides calling convension differences.
|
|---|
| 497 | ;
|
|---|
| 498 | ; This always calls %1.
|
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| 499 | ; In 64-bit code, it will load up to 4 parameters into register.
|
|---|
| 500 | ;
|
|---|
| 501 | ; @param %1 The function to call (mangled).
|
|---|
| 502 | ; @param %2 The number of parameters.
|
|---|
| 503 | ;
|
|---|
| 504 | %macro BS3_CALL 2
|
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| 505 | %if __BITS__ == 64
|
|---|
| 506 | %if %2 >= 1
|
|---|
| 507 | mov rcx, [rsp + 008h]
|
|---|
| 508 | %ifdef BS3_STRICT
|
|---|
| 509 | and qword [rsp + 008h], 11h
|
|---|
| 510 | %endif
|
|---|
| 511 | %endif
|
|---|
| 512 | %if %2 >= 2
|
|---|
| 513 | mov rdx, [rsp + 010h]
|
|---|
| 514 | %ifdef BS3_STRICT
|
|---|
| 515 | and qword [rsp + 010h], 12h
|
|---|
| 516 | %endif
|
|---|
| 517 | %endif
|
|---|
| 518 | %if %2 >= 3
|
|---|
| 519 | mov r8, [rsp + 018h]
|
|---|
| 520 | %ifdef BS3_STRICT
|
|---|
| 521 | and qword [rsp + 018h], 13h
|
|---|
| 522 | %endif
|
|---|
| 523 | %endif
|
|---|
| 524 | %if %2 >= 4
|
|---|
| 525 | mov r9, [rsp + 020h]
|
|---|
| 526 | %ifdef BS3_STRICT
|
|---|
| 527 | and qword [rsp + 020h], 14h
|
|---|
| 528 | %endif
|
|---|
| 529 | %endif
|
|---|
| 530 | %endif
|
|---|
| 531 | call %1
|
|---|
| 532 | %endmacro
|
|---|
| 533 |
|
|---|
| 534 |
|
|---|
| 535 | ;; @name Static Memory Allocation
|
|---|
| 536 | ; @{
|
|---|
| 537 | ;; The flat load address for the code after the bootsector.
|
|---|
| 538 | %define BS3_ADDR_LOAD 010000h
|
|---|
| 539 | ;; Where we save the boot registers during init.
|
|---|
| 540 | ; Located right before the code.
|
|---|
| 541 | %define BS3_ADDR_REG_SAVE (BS3_ADDR_LOAD - BS3REGS_size - 8)
|
|---|
| 542 | ;; Where the stack starts (initial RSP value).
|
|---|
| 543 | ; Located 16 bytes (assumed by boot sector) before the saved registers. SS.BASE=0.
|
|---|
| 544 | %define BS3_ADDR_STACK (BS3_ADDR_REG_SAVE - 16)
|
|---|
| 545 | ;; The ring-0 stack (8KB) for ring transitions.
|
|---|
| 546 | %define BS3_ADDR_STACK_R0 006000h
|
|---|
| 547 | ;; The ring-1 stack (8KB) for ring transitions.
|
|---|
| 548 | %define BS3_ADDR_STACK_R1 004000h
|
|---|
| 549 | ;; The ring-2 stack (8KB) for ring transitions.
|
|---|
| 550 | %define BS3_ADDR_STACK_R2 002000h
|
|---|
| 551 | ;; IST1 ring-0 stack for long mode (4KB), used for double faults elsewhere.
|
|---|
| 552 | %define BS3_ADDR_STACK_R0_IST1 009000h
|
|---|
| 553 | ;; IST2 ring-0 stack for long mode (3KB), used for spare 0 stack elsewhere.
|
|---|
| 554 | %define BS3_ADDR_STACK_R0_IST2 008000h
|
|---|
| 555 | ;; IST3 ring-0 stack for long mode (1KB).
|
|---|
| 556 | %define BS3_ADDR_STACK_R0_IST3 007400h
|
|---|
| 557 | ;; IST4 ring-0 stack for long mode (1KB), used for spare 1 stack elsewhere.
|
|---|
| 558 | %define BS3_ADDR_STACK_R0_IST4 007000h
|
|---|
| 559 | ;; IST5 ring-0 stack for long mode (1KB).
|
|---|
| 560 | %define BS3_ADDR_STACK_R0_IST5 006c00h
|
|---|
| 561 | ;; IST6 ring-0 stack for long mode (1KB).
|
|---|
| 562 | %define BS3_ADDR_STACK_R0_IST6 006800h
|
|---|
| 563 | ;; IST7 ring-0 stack for long mode (1KB).
|
|---|
| 564 | %define BS3_ADDR_STACK_R0_IST7 006400h
|
|---|
| 565 |
|
|---|
| 566 | ;; The base address of the BS3TEXT16 segment (same as BS3_LOAD_ADDR).
|
|---|
| 567 | ;; @sa BS3_SEL_TEXT16
|
|---|
| 568 | %define BS3_ADDR_BS3TEXT16 010000h
|
|---|
| 569 | ;; The base address of the BS3SYSTEM16 segment.
|
|---|
| 570 | ;; @sa BS3_SEL_SYSTEM16
|
|---|
| 571 | %define BS3_ADDR_BS3SYSTEM16 020000h
|
|---|
| 572 | ;; The base address of the BS3DATA16 segment.
|
|---|
| 573 | ;; @sa BS3_SEL_DATA16
|
|---|
| 574 | %define BS3_ADDR_BS3DATA16 027000h
|
|---|
| 575 | ;; @}
|
|---|
| 576 |
|
|---|
| 577 |
|
|---|
| 578 | ;;
|
|---|
| 579 | ; Registers. Used by traps and such.
|
|---|
| 580 | ;
|
|---|
| 581 | struc BS3REGS
|
|---|
| 582 | .rax resq 1
|
|---|
| 583 | .rbx resq 1
|
|---|
| 584 | .rcx resq 1
|
|---|
| 585 | .rdx resq 1
|
|---|
| 586 | .rdi resq 1
|
|---|
| 587 | .rsi resq 1
|
|---|
| 588 | .rbp resq 1
|
|---|
| 589 | .rsp resq 1
|
|---|
| 590 | .rip resq 1
|
|---|
| 591 | .r8 resq 1
|
|---|
| 592 | .r9 resq 1
|
|---|
| 593 | .r10 resq 1
|
|---|
| 594 | .r11 resq 1
|
|---|
| 595 | .r12 resq 1
|
|---|
| 596 | .r13 resq 1
|
|---|
| 597 | .r14 resq 1
|
|---|
| 598 | .r15 resq 1
|
|---|
| 599 | .rflags resq 1
|
|---|
| 600 | .cs resw 1
|
|---|
| 601 | .ds resw 1
|
|---|
| 602 | .es resw 1
|
|---|
| 603 | .fs resw 1
|
|---|
| 604 | .gs resw 1
|
|---|
| 605 | .ss resw 1
|
|---|
| 606 | .cBits resb 1
|
|---|
| 607 | .pad resb 3
|
|---|
| 608 | .cr0 resq 1
|
|---|
| 609 | .cr2 resq 1
|
|---|
| 610 | .cr3 resq 1
|
|---|
| 611 | .cr4 resq 1
|
|---|
| 612 | .cr8 resq 1
|
|---|
| 613 | ;; @todo Add floating point registers when they are active.
|
|---|
| 614 | endstruc
|
|---|
| 615 |
|
|---|
| 616 |
|
|---|
| 617 |
|
|---|
| 618 | ;;
|
|---|
| 619 | ; Trap record.
|
|---|
| 620 | ;
|
|---|
| 621 | struc BS3TRAPREC
|
|---|
| 622 | ;; The trap location relative to the base address given at
|
|---|
| 623 | ; registration time.
|
|---|
| 624 | .offWhere resd 1
|
|---|
| 625 | ;; What to add to .offWhere to calculate the resume address.
|
|---|
| 626 | .offResumeAddend resb 1
|
|---|
| 627 | ;; The trap number.
|
|---|
| 628 | .u8TrapNo resb 1
|
|---|
| 629 | ;; The error code if the trap takes one.
|
|---|
| 630 | .u16ErrCd resw 1
|
|---|
| 631 | endstruc
|
|---|
| 632 |
|
|---|
| 633 | ;; The size shift.
|
|---|
| 634 | %define BS3TRAPREC_SIZE_SHIFT 3
|
|---|
| 635 |
|
|---|
| 636 |
|
|---|
| 637 | ;; The system call vector.
|
|---|
| 638 | %define BS3_TRAP_SYSCALL 20h
|
|---|
| 639 |
|
|---|
| 640 | ;; @name System call numbers
|
|---|
| 641 | ;; @{
|
|---|
| 642 | ;; Print char (cl).
|
|---|
| 643 | %define BS3_SYSCALL_PRINT_CHR 0ca110001h
|
|---|
| 644 | ;; Switch to ring-0.
|
|---|
| 645 | %define BS3_SYSCALL_TO_RING0 0ca110002h
|
|---|
| 646 | ;; Switch to ring-1.
|
|---|
| 647 | %define BS3_SYSCALL_TO_RING1 0ca110003h
|
|---|
| 648 | ;; Switch to ring-2.
|
|---|
| 649 | %define BS3_SYSCALL_TO_RING2 0ca110004h
|
|---|
| 650 | ;; Switch to ring-3.
|
|---|
| 651 | %define BS3_SYSCALL_TO_RING3 0ca110005h
|
|---|
| 652 | ;; @}
|
|---|
| 653 |
|
|---|
| 654 |
|
|---|
| 655 |
|
|---|
| 656 | ;; @name BS3_SEL_XXX - GDT selectors
|
|---|
| 657 | ;; @{
|
|---|
| 658 |
|
|---|
| 659 | %define BS3_SEL_LDT 0010h ;;< The LDT selector (requires setting up).
|
|---|
| 660 | %define BS3_SEL_TSS16 0020h ;;< The 16-bit TSS selector.
|
|---|
| 661 | %define BS3_SEL_TSS16_DF 0028h ;;< The 16-bit TSS selector for double faults.
|
|---|
| 662 | %define BS3_SEL_TSS16_SPARE0 0030h ;;< The 16-bit TSS selector for testing.
|
|---|
| 663 | %define BS3_SEL_TSS16_SPARE1 0038h ;;< The 16-bit TSS selector for testing.
|
|---|
| 664 | %define BS3_SEL_TSS32 0040h ;;< The 32-bit TSS selector.
|
|---|
| 665 | %define BS3_SEL_TSS32_DF 0048h ;;< The 32-bit TSS selector for double faults.
|
|---|
| 666 | %define BS3_SEL_TSS32_SPARE0 0050h ;;< The 32-bit TSS selector for testing.
|
|---|
| 667 | %define BS3_SEL_TSS32_SPARE1 0058h ;;< The 32-bit TSS selector for testing.
|
|---|
| 668 | %define BS3_SEL_TSS32_IOBP_IRB 0060h ;;< The 32-bit TSS selector with I/O permission and interrupt redirection bitmaps.
|
|---|
| 669 | %define BS3_SEL_TSS32_IRB 0068h ;;< The 32-bit TSS selector with only interrupt redirection bitmap (IOPB stripped by limit).
|
|---|
| 670 | %define BS3_SEL_TSS64 0070h ;;< The 64-bit TSS selector.
|
|---|
| 671 | %define BS3_SEL_TSS64_SPARE0 0080h ;;< The 64-bit TSS selector.
|
|---|
| 672 | %define BS3_SEL_TSS64_SPARE1 0090h ;;< The 64-bit TSS selector.
|
|---|
| 673 | %define BS3_SEL_TSS64_IOBP 00a0h ;;< The 64-bit TSS selector.
|
|---|
| 674 |
|
|---|
| 675 | %define BS3_SEL_TSS16 0020h ;;< The 16-bit TSS selector.
|
|---|
| 676 | %define BS3_SEL_TSS16_DF 0028h ;;< The 16-bit TSS selector for double faults.
|
|---|
| 677 | %define BS3_SEL_TSS32 0030h ;;< The 32-bit TSS selector.
|
|---|
| 678 | %define BS3_SEL_TSS32_DF 0038h ;;< The 32-bit TSS selector for double faults.
|
|---|
| 679 | %define BS3_SEL_TSS64 0040h ;;< The 64-bit TSS selector.
|
|---|
| 680 | %define BS3_SEL_VMMDEV_MMIO16 00f8h ;;< Selector for accessing the VMMDev MMIO segment at 0100000h from 16-bit code.
|
|---|
| 681 |
|
|---|
| 682 | %define BS3_SEL_RING_SHIFT 8 ;;< For the formula: BS3_SEL_R0_XXX + ((cs & 3) << BS3_SEL_RING_SHIFT)
|
|---|
| 683 |
|
|---|
| 684 | %define BS3_SEL_R0_FIRST 0100h ;;< The first selector in the ring-0 block.
|
|---|
| 685 | %define BS3_SEL_R0_CS16 0100h ;;< ring-0: 16-bit code selector, base 0x10000.
|
|---|
| 686 | %define BS3_SEL_R0_DS16 0108h ;;< ring-0: 16-bit data selector, base 0x23000.
|
|---|
| 687 | %define BS3_SEL_R0_SS16 0110h ;;< ring-0: 16-bit stack selector, base 0x00000.
|
|---|
| 688 | %define BS3_SEL_R0_CS32 0118h ;;< ring-0: 32-bit flat code selector.
|
|---|
| 689 | %define BS3_SEL_R0_DS32 0120h ;;< ring-0: 32-bit flat data selector.
|
|---|
| 690 | %define BS3_SEL_R0_SS32 0128h ;;< ring-0: 32-bit flat stack selector.
|
|---|
| 691 | %define BS3_SEL_R0_CS64 0130h ;;< ring-0: 64-bit flat code selector.
|
|---|
| 692 | %define BS3_SEL_R0_DS64 0138h ;;< ring-0: 64-bit flat data & stack selector.
|
|---|
| 693 | %define BS3_SEL_R0_CS16_EO 0140h ;;< ring-0: 16-bit execute-only code selector, not accessed, 0xfffe limit, CS16 base.
|
|---|
| 694 | %define BS3_SEL_R0_CS16_CNF 0148h ;;< ring-0: 16-bit conforming code selector, not accessed, 0xfffe limit, CS16 base.
|
|---|
| 695 | %define BS3_SEL_R0_CS16_CNF_EO 0150h ;;< ring-0: 16-bit execute-only conforming code selector, not accessed, 0xfffe limit, CS16 base.
|
|---|
| 696 | %define BS3_SEL_R0_CS32_EO 0158h ;;< ring-0: 32-bit execute-only code selector, not accessed, flat.
|
|---|
| 697 | %define BS3_SEL_R0_CS32_CNF 0160h ;;< ring-0: 32-bit conforming code selector, not accessed, flat.
|
|---|
| 698 | %define BS3_SEL_R0_CS32_CNF_EO 0168h ;;< ring-0: 32-bit execute-only conforming code selector, not accessed, flat.
|
|---|
| 699 | %define BS3_SEL_R0_CS64_EO 0170h ;;< ring-0: 64-bit execute-only code selector, not accessed, flat.
|
|---|
| 700 | %define BS3_SEL_R0_CS64_CNF 0178h ;;< ring-0: 64-bit conforming code selector, not accessed, flat.
|
|---|
| 701 | %define BS3_SEL_R0_CS64_CNF_EO 0180h ;;< ring-0: 64-bit execute-only conforming code selector, not accessed, flat.
|
|---|
| 702 |
|
|---|
| 703 | %define BS3_SEL_R1_FIRST 0200h ;;< The first selector in the ring-1 block.
|
|---|
| 704 | %define BS3_SEL_R1_CS16 0200h ;;< ring-1: 16-bit code selector, base 0x10000.
|
|---|
| 705 | %define BS3_SEL_R1_DS16 0208h ;;< ring-1: 16-bit data selector, base 0x23000.
|
|---|
| 706 | %define BS3_SEL_R1_SS16 0210h ;;< ring-1: 16-bit stack selector, base 0x00000.
|
|---|
| 707 | %define BS3_SEL_R1_CS32 0218h ;;< ring-1: 32-bit flat code selector.
|
|---|
| 708 | %define BS3_SEL_R1_DS32 0220h ;;< ring-1: 32-bit flat data selector.
|
|---|
| 709 | %define BS3_SEL_R1_SS32 0228h ;;< ring-1: 32-bit flat stack selector.
|
|---|
| 710 | %define BS3_SEL_R1_CS64 0230h ;;< ring-1: 64-bit flat code selector.
|
|---|
| 711 | %define BS3_SEL_R1_DS64 0238h ;;< ring-1: 64-bit flat data & stack selector.
|
|---|
| 712 | %define BS3_SEL_R1_CS16_EO 0240h ;;< ring-1: 16-bit execute-only code selector, not accessed, 0xfffe limit, CS16 base.
|
|---|
| 713 | %define BS3_SEL_R1_CS16_CNF 0248h ;;< ring-1: 16-bit conforming code selector, not accessed, 0xfffe limit, CS16 base.
|
|---|
| 714 | %define BS3_SEL_R1_CS16_CNF_EO 0250h ;;< ring-1: 16-bit execute-only conforming code selector, not accessed, 0xfffe limit, CS16 base.
|
|---|
| 715 | %define BS3_SEL_R1_CS32_EO 0258h ;;< ring-1: 32-bit execute-only code selector, not accessed, flat.
|
|---|
| 716 | %define BS3_SEL_R1_CS32_CNF 0260h ;;< ring-1: 32-bit conforming code selector, not accessed, flat.
|
|---|
| 717 | %define BS3_SEL_R1_CS32_CNF_EO 0268h ;;< ring-1: 32-bit execute-only conforming code selector, not accessed, flat.
|
|---|
| 718 | %define BS3_SEL_R1_CS64_EO 0270h ;;< ring-1: 64-bit execute-only code selector, not accessed, flat.
|
|---|
| 719 | %define BS3_SEL_R1_CS64_CNF 0278h ;;< ring-1: 64-bit conforming code selector, not accessed, flat.
|
|---|
| 720 | %define BS3_SEL_R1_CS64_CNF_EO 0280h ;;< ring-1: 64-bit execute-only conforming code selector, not accessed, flat.
|
|---|
| 721 |
|
|---|
| 722 | %define BS3_SEL_R2_FIRST 0300h ;;< The first selector in the ring-2 block.
|
|---|
| 723 | %define BS3_SEL_R2_CS16 0300h ;;< ring-2: 16-bit code selector, base 0x10000.
|
|---|
| 724 | %define BS3_SEL_R2_DS16 0308h ;;< ring-2: 16-bit data selector, base 0x23000.
|
|---|
| 725 | %define BS3_SEL_R2_SS16 0310h ;;< ring-2: 16-bit stack selector, base 0x00000.
|
|---|
| 726 | %define BS3_SEL_R2_CS32 0318h ;;< ring-2: 32-bit flat code selector.
|
|---|
| 727 | %define BS3_SEL_R2_DS32 0320h ;;< ring-2: 32-bit flat data selector.
|
|---|
| 728 | %define BS3_SEL_R2_SS32 0328h ;;< ring-2: 32-bit flat stack selector.
|
|---|
| 729 | %define BS3_SEL_R2_CS64 0330h ;;< ring-2: 64-bit flat code selector.
|
|---|
| 730 | %define BS3_SEL_R2_DS64 0338h ;;< ring-2: 64-bit flat data & stack selector.
|
|---|
| 731 | %define BS3_SEL_R2_CS16_EO 0340h ;;< ring-2: 16-bit execute-only code selector, not accessed, 0xfffe limit, CS16 base.
|
|---|
| 732 | %define BS3_SEL_R2_CS16_CNF 0348h ;;< ring-2: 16-bit conforming code selector, not accessed, 0xfffe limit, CS16 base.
|
|---|
| 733 | %define BS3_SEL_R2_CS16_CNF_EO 0350h ;;< ring-2: 16-bit execute-only conforming code selector, not accessed, 0xfffe limit, CS16 base.
|
|---|
| 734 | %define BS3_SEL_R2_CS32_EO 0358h ;;< ring-2: 32-bit execute-only code selector, not accessed, flat.
|
|---|
| 735 | %define BS3_SEL_R2_CS32_CNF 0360h ;;< ring-2: 32-bit conforming code selector, not accessed, flat.
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| 736 | %define BS3_SEL_R2_CS32_CNF_EO 0368h ;;< ring-2: 32-bit execute-only conforming code selector, not accessed, flat.
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| 737 | %define BS3_SEL_R2_CS64_EO 0370h ;;< ring-2: 64-bit execute-only code selector, not accessed, flat.
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| 738 | %define BS3_SEL_R2_CS64_CNF 0378h ;;< ring-2: 64-bit conforming code selector, not accessed, flat.
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| 739 | %define BS3_SEL_R2_CS64_CNF_EO 0380h ;;< ring-2: 64-bit execute-only conforming code selector, not accessed, flat.
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| 740 |
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| 741 | %define BS3_SEL_R3_FIRST 0400h ;;< The first selector in the ring-3 block.
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| 742 | %define BS3_SEL_R3_CS16 0400h ;;< ring-3: 16-bit code selector, base 0x10000.
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| 743 | %define BS3_SEL_R3_DS16 0408h ;;< ring-3: 16-bit data selector, base 0x23000.
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| 744 | %define BS3_SEL_R3_SS16 0410h ;;< ring-3: 16-bit stack selector, base 0x00000.
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| 745 | %define BS3_SEL_R3_CS32 0418h ;;< ring-3: 32-bit flat code selector.
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| 746 | %define BS3_SEL_R3_DS32 0420h ;;< ring-3: 32-bit flat data selector.
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| 747 | %define BS3_SEL_R3_SS32 0428h ;;< ring-3: 32-bit flat stack selector.
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| 748 | %define BS3_SEL_R3_CS64 0430h ;;< ring-3: 64-bit flat code selector.
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| 749 | %define BS3_SEL_R3_DS64 0438h ;;< ring-3: 64-bit flat data & stack selector.
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| 750 | %define BS3_SEL_R3_CS16_EO 0440h ;;< ring-3: 16-bit execute-only code selector, not accessed, 0xfffe limit, CS16 base.
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| 751 | %define BS3_SEL_R3_CS16_CNF 0448h ;;< ring-3: 16-bit conforming code selector, not accessed, 0xfffe limit, CS16 base.
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|---|
| 752 | %define BS3_SEL_R3_CS16_CNF_EO 0450h ;;< ring-3: 16-bit execute-only conforming code selector, not accessed, 0xfffe limit, CS16 base.
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|---|
| 753 | %define BS3_SEL_R3_CS32_EO 0458h ;;< ring-3: 32-bit execute-only code selector, not accessed, flat.
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|---|
| 754 | %define BS3_SEL_R3_CS32_CNF 0460h ;;< ring-3: 32-bit conforming code selector, not accessed, flat.
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|---|
| 755 | %define BS3_SEL_R3_CS32_CNF_EO 0468h ;;< ring-3: 32-bit execute-only conforming code selector, not accessed, flat.
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|---|
| 756 | %define BS3_SEL_R3_CS64_EO 0470h ;;< ring-3: 64-bit execute-only code selector, not accessed, flat.
|
|---|
| 757 | %define BS3_SEL_R3_CS64_CNF 0478h ;;< ring-3: 64-bit conforming code selector, not accessed, flat.
|
|---|
| 758 | %define BS3_SEL_R3_CS64_CNF_EO 0480h ;;< ring-3: 64-bit execute-only conforming code selector, not accessed, flat.
|
|---|
| 759 |
|
|---|
| 760 | %define BS3_SEL_SPARE_FIRST 0500h ;;< The first selector in the spare block
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|---|
| 761 | %define BS3_SEL_SPARE_00 0500h ;;< Spare selector number 00h.
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| 762 | %define BS3_SEL_SPARE_01 0508h ;;< Spare selector number 01h.
|
|---|
| 763 | %define BS3_SEL_SPARE_02 0510h ;;< Spare selector number 02h.
|
|---|
| 764 | %define BS3_SEL_SPARE_03 0518h ;;< Spare selector number 03h.
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| 765 | %define BS3_SEL_SPARE_04 0520h ;;< Spare selector number 04h.
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|---|
| 766 | %define BS3_SEL_SPARE_05 0528h ;;< Spare selector number 05h.
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|---|
| 767 | %define BS3_SEL_SPARE_06 0530h ;;< Spare selector number 06h.
|
|---|
| 768 | %define BS3_SEL_SPARE_07 0538h ;;< Spare selector number 07h.
|
|---|
| 769 | %define BS3_SEL_SPARE_08 0540h ;;< Spare selector number 08h.
|
|---|
| 770 | %define BS3_SEL_SPARE_09 0548h ;;< Spare selector number 09h.
|
|---|
| 771 | %define BS3_SEL_SPARE_0a 0550h ;;< Spare selector number 0ah.
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|---|
| 772 | %define BS3_SEL_SPARE_0b 0558h ;;< Spare selector number 0bh.
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|---|
| 773 | %define BS3_SEL_SPARE_0c 0560h ;;< Spare selector number 0ch.
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|---|
| 774 | %define BS3_SEL_SPARE_0d 0568h ;;< Spare selector number 0dh.
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|---|
| 775 | %define BS3_SEL_SPARE_0e 0570h ;;< Spare selector number 0eh.
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|---|
| 776 | %define BS3_SEL_SPARE_0f 0578h ;;< Spare selector number 0fh.
|
|---|
| 777 | %define BS3_SEL_SPARE_10 0580h ;;< Spare selector number 10h.
|
|---|
| 778 | %define BS3_SEL_SPARE_11 0588h ;;< Spare selector number 11h.
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|---|
| 779 | %define BS3_SEL_SPARE_12 0590h ;;< Spare selector number 12h.
|
|---|
| 780 | %define BS3_SEL_SPARE_13 0598h ;;< Spare selector number 13h.
|
|---|
| 781 | %define BS3_SEL_SPARE_14 05a0h ;;< Spare selector number 14h.
|
|---|
| 782 | %define BS3_SEL_SPARE_15 05a8h ;;< Spare selector number 15h.
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|---|
| 783 | %define BS3_SEL_SPARE_16 05b0h ;;< Spare selector number 16h.
|
|---|
| 784 | %define BS3_SEL_SPARE_17 05b8h ;;< Spare selector number 17h.
|
|---|
| 785 | %define BS3_SEL_SPARE_18 05c0h ;;< Spare selector number 18h.
|
|---|
| 786 | %define BS3_SEL_SPARE_19 05c8h ;;< Spare selector number 19h.
|
|---|
| 787 | %define BS3_SEL_SPARE_1a 05d0h ;;< Spare selector number 1ah.
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|---|
| 788 | %define BS3_SEL_SPARE_1b 05d8h ;;< Spare selector number 1bh.
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|---|
| 789 | %define BS3_SEL_SPARE_1c 05e0h ;;< Spare selector number 1ch.
|
|---|
| 790 | %define BS3_SEL_SPARE_1d 05e8h ;;< Spare selector number 1dh.
|
|---|
| 791 | %define BS3_SEL_SPARE_1e 05f0h ;;< Spare selector number 1eh.
|
|---|
| 792 | %define BS3_SEL_SPARE_1f 05f8h ;;< Spare selector number 1fh.
|
|---|
| 793 |
|
|---|
| 794 | %define BS3_SEL_TILED 0600h ;;< 16-bit data tiling: First - base=0x00000000, limit=64KB.
|
|---|
| 795 | %define BS3_SEL_TILED_LAST 0df8h ;;< 16-bit data tiling: Last - base=0x00ff0000, limit=64KB.
|
|---|
| 796 | %define BS3_SEL_TILED_AREA_SIZE 001000000h ;;< 16-bit data tiling: Size of addressable area, in bytes. (16 MB)
|
|---|
| 797 |
|
|---|
| 798 | %define BS3_SEL_FREE_PART1 0e00h ;;< Free selector space - part \#1.
|
|---|
| 799 | %define BS3_SEL_FREE_PART1_LAST 0ff8h ;;< Free selector space - part \#1, last entry.
|
|---|
| 800 |
|
|---|
| 801 | %define BS3_SEL_TEXT16 1000h ;;< The BS3TEXT16 selector.
|
|---|
| 802 |
|
|---|
| 803 | %define BS3_SEL_FREE_PART2 1008h ;;< Free selector space - part \#2.
|
|---|
| 804 | %define BS3_SEL_FREE_PART2_LAST 1ff8h ;;< Free selector space - part \#2, last entry.
|
|---|
| 805 |
|
|---|
| 806 | %define BS3_SEL_SYSTEM16 2000h ;;< The BS3SYSTEM16 selector.
|
|---|
| 807 |
|
|---|
| 808 | %define BS3_SEL_FREE_PART3 2008h ;;< Free selector space - part \#3.
|
|---|
| 809 | %define BS3_SEL_FREE_PART3_LAST 26f8h ;;< Free selector space - part \#3, last entry.
|
|---|
| 810 |
|
|---|
| 811 | %define BS3_SEL_DATA16 2700h ;;< The BS3DATA16 selector.
|
|---|
| 812 |
|
|---|
| 813 | %define BS3_SEL_GDT_LIMIT 2707h ;;< The GDT limit.
|
|---|
| 814 |
|
|---|
| 815 | ;; @}
|
|---|
| 816 |
|
|---|
| 817 |
|
|---|
| 818 | ;
|
|---|
| 819 | ; Sanity checks.
|
|---|
| 820 | ;
|
|---|
| 821 | %if BS3_ADDR_BS3TEXT16 != BS3_ADDR_LOAD
|
|---|
| 822 | %error "BS3_ADDR_BS3TEXT16 and BS3_ADDR_LOAD are out of sync"
|
|---|
| 823 | %endif
|
|---|
| 824 | %if (BS3_ADDR_BS3TEXT16 / 16) != BS3_SEL_TEXT16
|
|---|
| 825 | %error "BS3_ADDR_BS3TEXT16 and BS3_SEL_TEXT16 are out of sync"
|
|---|
| 826 | %endif
|
|---|
| 827 | %if (BS3_ADDR_BS3DATA16 / 16) != BS3_SEL_DATA16
|
|---|
| 828 | %error "BS3_ADDR_BS3DATA16 and BS3_SEL_DATA16 are out of sync"
|
|---|
| 829 | %endif
|
|---|
| 830 | %if (BS3_ADDR_BS3SYSTEM16 / 16) != BS3_SEL_SYSTEM16
|
|---|
| 831 | %error "BS3_ADDR_BS3SYSTEM16 and BS3_SEL_SYSTEM16 are out of sync"
|
|---|
| 832 | %endif
|
|---|
| 833 |
|
|---|
| 834 | %endif
|
|---|
| 835 |
|
|---|
