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1 | //// @file\r |
| 2 | //\r |
| 3 | // Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r |
| 4 | //\r |
| 5 | // This program and the accompanying materials\r |
| 6 | // are licensed and made available under the terms and conditions\r |
| 7 | // of the BSD License which accompanies this distribution. The\r |
| 8 | // full text of the license may be found at\r |
| 9 | // http://opensource.org/licenses/bsd-license.php\r |
| 10 | //\r |
| 11 | // THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 12 | // WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 13 | //\r |
| 14 | ////\r |
| 15 | \r |
| 16 | #define NUM_REAL_GDT_ENTRIES 3\r |
| 17 | #define LOW_STACK_SIZE (8*1024) // 8k?\r |
| 18 | \r |
| 19 | //\r |
| 20 | // Low memory Thunk Structure\r |
| 21 | //\r |
| 22 | #define Code 0\r |
| 23 | #define LowReverseThunkStart Code + 4096\r |
| 24 | #define GdtDesc LowReverseThunkStart + 4\r |
| 25 | #define IdtDesc GdtDesc + 6\r |
| 26 | #define FlatSs IdtDesc + 6\r |
| 27 | #define FlatEsp FlatSs + 4\r |
| 28 | #define LowCodeSelector FlatEsp + 4\r |
| 29 | #define LowDataSelector LowCodeSelector + 4\r |
| 30 | #define LowStack LowDataSelector + 4\r |
| 31 | #define RealModeIdtDesc LowStack + 4\r |
| 32 | #define RealModeGdt RealModeIdtDesc + 6\r |
| 33 | #define RealModeGdtDesc RealModeGdt + (8 * NUM_REAL_GDT_ENTRIES)\r |
| 34 | #define RevRealDs RealModeGdtDesc + 6\r |
| 35 | #define RevRealSs RevRealDs + 2\r |
| 36 | #define RevRealEsp RevRealSs + 2\r |
| 37 | #define RevRealIdtDesc RevRealEsp + 4\r |
| 38 | #define RevFlatDataSelector RevRealIdtDesc + 6\r |
| 39 | #define RevFlatStack RevFlatDataSelector + 2\r |
| 40 | #define Stack RevFlatStack + 4\r |
| 41 | #define RevThunkStack Stack + LOW_STACK_SIZE\r |
| 42 | \r |
| 43 | #define EfiToLegacy16InitTable RevThunkStack + LOW_STACK_SIZE\r |
| 44 | #define InitTableBiosLessThan1MB EfiToLegacy16InitTable\r |
| 45 | #define InitTableHiPmmMemory InitTableBiosLessThan1MB + 4\r |
| 46 | #define InitTablePmmMemorySizeInBytes InitTableHiPmmMemory + 4\r |
| 47 | #define InitTableReverseThunkCallSegment InitTablePmmMemorySizeInBytes + 4\r |
| 48 | #define InitTableReverseThunkCallOffset InitTableReverseThunkCallSegment + 2\r |
| 49 | #define InitTableNumberE820Entries InitTableReverseThunkCallOffset + 2\r |
| 50 | #define InitTableOsMemoryAbove1Mb InitTableNumberE820Entries + 4\r |
| 51 | #define InitTableThunkStart InitTableOsMemoryAbove1Mb + 4\r |
| 52 | #define InitTableThunkSizeInBytes InitTableThunkStart + 4\r |
| 53 | #define InitTable16InitTableEnd InitTableThunkSizeInBytes + 4\r |
| 54 | \r |
| 55 | #define EfiToLegacy16BootTable InitTable16InitTableEnd\r |
| 56 | #define BootTableBiosLessThan1MB EfiToLegacy16BootTable\r |
| 57 | #define BootTableHiPmmMemory BootTableBiosLessThan1MB + 4\r |
| 58 | #define BootTablePmmMemorySizeInBytes BootTableHiPmmMemory + 4\r |
| 59 | #define BootTableReverseThunkCallSegment BootTablePmmMemorySizeInBytes + 4\r |
| 60 | #define BootTableReverseThunkCallOffset BootTableReverseThunkCallSegment + 2\r |
| 61 | #define BootTableNumberE820Entries BootTableReverseThunkCallOffset + 2\r |
| 62 | #define BootTableOsMemoryAbove1Mb BootTableNumberE820Entries + 4\r |
| 63 | #define BootTableThunkStart BootTableOsMemoryAbove1Mb + 4\r |
| 64 | #define BootTableThunkSizeInBytes BootTableThunkStart + 4\r |
| 65 | #define EfiToLegacy16BootTableEnd BootTableThunkSizeInBytes + 4\r |
| 66 | \r |
| 67 | #define InterruptRedirectionCode EfiToLegacy16BootTableEnd\r |
| 68 | #define PciHandler InterruptRedirectionCode + 32\r |
| 69 | \r |
| 70 | \r |
| 71 | //\r |
| 72 | // Register Sets (16 Bit)\r |
| 73 | //\r |
| 74 | \r |
| 75 | #define AX 0\r |
| 76 | #define BX 2\r |
| 77 | #define CX 4\r |
| 78 | #define DX 6\r |
| 79 | #define SI 8\r |
| 80 | #define DI 10\r |
| 81 | #define Flags 12\r |
| 82 | #define ES 14\r |
| 83 | #define CS 16\r |
| 84 | #define SS 18\r |
| 85 | #define DS 20\r |
| 86 | #define BP 22\r |
| 87 | \r |
| 88 | \r |
| 89 | \r |
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