ebdadump

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⇤ ← Revision 1 as of 2011-08-17 11:06:02 →
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Editor: anthonywong
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## page was renamed from Kernel/Reference/fwts/ebdadump
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00012 ebdadump Dump EBDA region.
00013 ebdadump ---------------------------------------------------------------------------
00014 ebdadump Test 1 of 1: Dump EBDA region.
00015 ebdadump EBDA region: 9f800..a0000 (2048 bytes)
00016 ebdadump 9f800: 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00017 ebdadump 9f810: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00018 ebdadump 9f820: 00 00 00 00 00 00 08 02 00 00 00 00 00 00 00 00 ................
..
..
00136 ebdadump 9ff80: 00 80 14 00 01 00 00 0a 00 00 00 00 00 00 00 02 ................
00137 ebdadump 9ff90: 00 00 00 00 00 80 14 04 01 00 40 0d 00 00 00 00 ..........@.....
00138 ebdadump 9ffa0: 00 00 c0 00 00 00 00 00 00 81 08 09 01 00 00 00 ................
00139 ebdadump 9ffb0: 00 82 08 00 00 00 00 00 00 82 08 00 00 01 00 00 ................
00140 ebdadump 9ffc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00141 ebdadump 9ffd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00142 ebdadump 9ffe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00143 ebdadump 9fff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................		 Dump EBDA region.
--------------------------------------------------------------------------------
Test 1 of 1: Dump EBDA region.
EBDA region: 9d800..a0000 (10240 bytes)
  9d800: 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
  9d810: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
  9d820: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
  9d830: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
  9d840: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
  9d850: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
...
  9ffd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
  9ffe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
  9fff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

Firmware Test Suite - ebdadump utility

This utility locates the Extended BIOS Data Area (EBDA) and produces a hex dump of the data. The EBDA can contain firmware generated dynamic data structures such as MultiProcessor "floating" table headers and perhaps the ACPI Root System Description Pointer (RSDP).

An example output is as follows: 

Dump EBDA region.
--------------------------------------------------------------------------------
Test 1 of 1: Dump EBDA region.
EBDA region: 9d800..a0000 (10240 bytes)
  9d800: 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  9d810: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  9d820: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  9d830: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  9d840: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  9d850: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
...
  9ffd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  9ffe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  9fff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................

Examples:

sudo fwts ebdadump -

..runs the ebdadump on your machine and dumps the output to stdout.

FirmwareTestSuite/Reference/ebdadump (last edited 2016-01-11 07:25:42 by anthonywong)