projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| a33a2f62 JY |
1 | ## @file\r |
| 2 | # Apply fixup to VTF binary image for FFS Raw section\r | |
| 3 | #\r | |
| 4 | # Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>\r | |
| 5 | #\r | |
| 6 | # This program and the accompanying materials\r | |
| 7 | # are licensed and made available under the terms and conditions of the BSD License\r | |
| 8 | # which accompanies this distribution. The 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 | import sys\r | |
| 16 | \r | |
| 17 | filename = sys.argv[1]\r | |
| 18 | \r | |
| 19 | if filename.lower().find('ia32') >= 0:\r | |
| 20 | d = open(sys.argv[1], 'rb').read()\r | |
| 21 | c = ((len(d) + 4 + 7) & ~7) - 4\r | |
| 22 | if c > len(d):\r | |
| 23 | c -= len(d)\r | |
| 24 | f = open(sys.argv[1], 'wb')\r | |
| 25 | f.write('\x90' * c)\r | |
| 26 | f.write(d)\r | |
| 27 | f.close()\r | |
| 28 | else:\r | |
| 29 | from struct import pack\r | |
| 30 | \r | |
| 31 | PAGE_PRESENT = 0x01\r | |
| 32 | PAGE_READ_WRITE = 0x02\r | |
| 33 | PAGE_USER_SUPERVISOR = 0x04\r | |
| 34 | PAGE_WRITE_THROUGH = 0x08\r | |
| 35 | PAGE_CACHE_DISABLE = 0x010\r | |
| 36 | PAGE_ACCESSED = 0x020\r | |
| 37 | PAGE_DIRTY = 0x040\r | |
| 38 | PAGE_PAT = 0x080\r | |
| 39 | PAGE_GLOBAL = 0x0100\r | |
| 40 | PAGE_2M_MBO = 0x080\r | |
| 41 | PAGE_2M_PAT = 0x01000\r | |
| 42 | \r | |
| 43 | def NopAlign4k(s):\r | |
| 44 | c = ((len(s) + 0xfff) & ~0xfff) - len(s)\r | |
| 45 | return ('\x90' * c) + s\r | |
| 46 | \r | |
| 47 | def PageDirectoryEntries4GbOf2MbPages(baseAddress):\r | |
| 48 | \r | |
| 49 | s = ''\r | |
| 50 | for i in range(0x800):\r | |
| 51 | i = (\r | |
| 52 | baseAddress + long(i << 21) +\r | |
| 53 | PAGE_2M_MBO +\r | |
| 54 | PAGE_CACHE_DISABLE +\r | |
| 55 | PAGE_ACCESSED +\r | |
| 56 | PAGE_DIRTY +\r | |
| 57 | PAGE_READ_WRITE +\r | |
| 58 | PAGE_PRESENT\r | |
| 59 | )\r | |
| 60 | s += pack('Q', i)\r | |
| 61 | return s\r | |
| 62 | \r | |
| 63 | def PageDirectoryPointerTable4GbOf2MbPages(pdeBase):\r | |
| 64 | s = ''\r | |
| 65 | for i in range(0x200):\r | |
| 66 | i = (\r | |
| 67 | pdeBase +\r | |
| 68 | (min(i, 3) << 12) +\r | |
| 69 | PAGE_CACHE_DISABLE +\r | |
| 70 | PAGE_ACCESSED +\r | |
| 71 | PAGE_READ_WRITE +\r | |
| 72 | PAGE_PRESENT\r | |
| 73 | )\r | |
| 74 | s += pack('Q', i)\r | |
| 75 | return s\r | |
| 76 | \r | |
| 77 | def PageMapLevel4Table4GbOf2MbPages(pdptBase):\r | |
| 78 | s = ''\r | |
| 79 | for i in range(0x200):\r | |
| 80 | i = (\r | |
| 81 | pdptBase +\r | |
| 82 | (min(i, 0) << 12) +\r | |
| 83 | PAGE_CACHE_DISABLE +\r | |
| 84 | PAGE_ACCESSED +\r | |
| 85 | PAGE_READ_WRITE +\r | |
| 86 | PAGE_PRESENT\r | |
| 87 | )\r | |
| 88 | s += pack('Q', i)\r | |
| 89 | return s\r | |
| 90 | \r | |
| 91 | def First4GbPageEntries(topAddress):\r | |
| 92 | PDE = PageDirectoryEntries4GbOf2MbPages(0L)\r | |
| 93 | pml4tBase = topAddress - 0x1000\r | |
| 94 | pdptBase = pml4tBase - 0x1000\r | |
| 95 | pdeBase = pdptBase - len(PDE)\r | |
| 96 | PDPT = PageDirectoryPointerTable4GbOf2MbPages(pdeBase)\r | |
| 97 | PML4T = PageMapLevel4Table4GbOf2MbPages(pdptBase)\r | |
| 98 | return PDE + PDPT + PML4T\r | |
| 99 | \r | |
| 100 | def AlignAndAddPageTables():\r | |
| 101 | d = open(sys.argv[1], 'rb').read()\r | |
| 102 | code = NopAlign4k(d)\r | |
| 103 | topAddress = 0x100000000 - len(code)\r | |
| 104 | d = ('\x90' * 4) + First4GbPageEntries(topAddress) + code\r | |
| 105 | f = open(sys.argv[1], 'wb')\r | |
| 106 | f.write(d)\r | |
| 107 | f.close()\r | |
| 108 | \r | |
| 109 | AlignAndAddPageTables()\r | |
| 110 | \r |