1 /******************************************************************************
3 * Module Name: apdump - Dump routines for ACPI tables (acpidump)
5 *****************************************************************************/
7 /******************************************************************************
11 * Some or all of this work - Copyright (c) 1999 - 2015, Intel Corp.
12 * All rights reserved.
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
37 * The above copyright and patent license is granted only if the following
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
72 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
80 * 4. Disclaimer and Export Compliance
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
114 *****************************************************************************/
116 #include "acpidump.h"
119 /* Local prototypes */
123 ACPI_TABLE_HEADER *Table,
125 ACPI_PHYSICAL_ADDRESS Address);
128 /******************************************************************************
130 * FUNCTION: ApIsValidHeader
132 * PARAMETERS: Table - Pointer to table to be validated
134 * RETURN: TRUE if the header appears to be valid. FALSE otherwise
136 * DESCRIPTION: Check for a valid ACPI table header
138 ******************************************************************************/
142 ACPI_TABLE_HEADER *Table)
145 if (!ACPI_VALIDATE_RSDP_SIG (Table->Signature))
147 /* Make sure signature is all ASCII and a valid ACPI name */
149 if (!AcpiUtValidAcpiName (Table->Signature))
151 AcpiLogError ("Table signature (0x%8.8X) is invalid\n",
152 *(UINT32 *) Table->Signature);
156 /* Check for minimum table length */
158 if (Table->Length < sizeof (ACPI_TABLE_HEADER))
160 AcpiLogError ("Table length (0x%8.8X) is invalid\n",
170 /******************************************************************************
172 * FUNCTION: ApIsValidChecksum
174 * PARAMETERS: Table - Pointer to table to be validated
176 * RETURN: TRUE if the checksum appears to be valid. FALSE otherwise.
178 * DESCRIPTION: Check for a valid ACPI table checksum.
180 ******************************************************************************/
184 ACPI_TABLE_HEADER *Table)
187 ACPI_TABLE_RSDP *Rsdp;
190 if (ACPI_VALIDATE_RSDP_SIG (Table->Signature))
194 * Note: Other checksums are computed during the table dump.
196 Rsdp = ACPI_CAST_PTR (ACPI_TABLE_RSDP, Table);
197 Status = AcpiTbValidateRsdp (Rsdp);
201 Status = AcpiTbVerifyChecksum (Table, Table->Length);
204 if (ACPI_FAILURE (Status))
206 AcpiLogError ("%4.4s: Warning: wrong checksum in table\n",
214 /******************************************************************************
216 * FUNCTION: ApGetTableLength
218 * PARAMETERS: Table - Pointer to the table
220 * RETURN: Table length
222 * DESCRIPTION: Obtain table length according to table signature.
224 ******************************************************************************/
228 ACPI_TABLE_HEADER *Table)
230 ACPI_TABLE_RSDP *Rsdp;
233 /* Check if table is valid */
235 if (!ApIsValidHeader (Table))
240 if (ACPI_VALIDATE_RSDP_SIG (Table->Signature))
242 Rsdp = ACPI_CAST_PTR (ACPI_TABLE_RSDP, Table);
243 return (AcpiTbGetRsdpLength (Rsdp));
246 /* Normal ACPI table */
248 return (Table->Length);
252 /******************************************************************************
254 * FUNCTION: ApDumpTableBuffer
256 * PARAMETERS: Table - ACPI table to be dumped
257 * Instance - ACPI table instance no. to be dumped
258 * Address - Physical address of the table
262 * DESCRIPTION: Dump an ACPI table in standard ASCII hex format, with a
263 * header that is compatible with the AcpiXtract utility.
265 ******************************************************************************/
269 ACPI_TABLE_HEADER *Table,
271 ACPI_PHYSICAL_ADDRESS Address)
276 TableLength = ApGetTableLength (Table);
278 /* Print only the header if requested */
282 AcpiTbPrintTableHeader (Address, Table);
286 /* Dump to binary file if requested */
290 return (ApWriteToBinaryFile (Table, Instance));
294 * Dump the table with header for use with acpixtract utility.
295 * Note: simplest to just always emit a 64-bit address. AcpiXtract
296 * utility can handle this.
298 AcpiUtFilePrintf (Gbl_OutputFile, "%4.4s @ 0x%8.8X%8.8X\n",
299 Table->Signature, ACPI_FORMAT_UINT64 (Address));
301 AcpiUtDumpBufferToFile (Gbl_OutputFile,
302 ACPI_CAST_PTR (UINT8, Table), TableLength,
304 AcpiUtFilePrintf (Gbl_OutputFile, "\n");
309 /******************************************************************************
311 * FUNCTION: ApDumpAllTables
317 * DESCRIPTION: Get all tables from the RSDT/XSDT (or at least all of the
318 * tables that we can possibly get).
320 ******************************************************************************/
326 ACPI_TABLE_HEADER *Table;
328 ACPI_PHYSICAL_ADDRESS Address;
334 /* Get and dump all available ACPI tables */
336 for (i = 0; i < AP_MAX_ACPI_FILES; i++)
338 Status = AcpiOsGetTableByIndex (i, &Table, &Instance, &Address);
339 if (ACPI_FAILURE (Status))
341 /* AE_LIMIT means that no more tables are available */
343 if (Status == AE_LIMIT)
349 AcpiLogError ("Could not get ACPI tables, %s\n",
350 AcpiFormatException (Status));
355 AcpiLogError ("Could not get ACPI table at index %u, %s\n",
356 i, AcpiFormatException (Status));
361 TableStatus = ApDumpTableBuffer (Table, Instance, Address);
370 /* Something seriously bad happened if the loop terminates here */
376 /******************************************************************************
378 * FUNCTION: ApDumpTableByAddress
380 * PARAMETERS: AsciiAddress - Address for requested ACPI table
384 * DESCRIPTION: Get an ACPI table via a physical address and dump it.
386 ******************************************************************************/
389 ApDumpTableByAddress (
392 ACPI_PHYSICAL_ADDRESS Address;
393 ACPI_TABLE_HEADER *Table;
399 /* Convert argument to an integer physical address */
401 Status = AcpiUtStrtoul64 (AsciiAddress, 0, &LongAddress);
402 if (ACPI_FAILURE (Status))
404 AcpiLogError ("%s: Could not convert to a physical address\n",
409 Address = (ACPI_PHYSICAL_ADDRESS) LongAddress;
410 Status = AcpiOsGetTableByAddress (Address, &Table);
411 if (ACPI_FAILURE (Status))
413 AcpiLogError ("Could not get table at 0x%8.8X%8.8X, %s\n",
414 ACPI_FORMAT_UINT64 (Address),
415 AcpiFormatException (Status));
419 TableStatus = ApDumpTableBuffer (Table, 0, Address);
421 return (TableStatus);
425 /******************************************************************************
427 * FUNCTION: ApDumpTableByName
429 * PARAMETERS: Signature - Requested ACPI table signature
433 * DESCRIPTION: Get an ACPI table via a signature and dump it. Handles
434 * multiple tables with the same signature (SSDTs).
436 ******************************************************************************/
442 char LocalSignature [ACPI_NAME_SIZE + 1];
444 ACPI_TABLE_HEADER *Table;
445 ACPI_PHYSICAL_ADDRESS Address;
450 if (ACPI_STRLEN (Signature) != ACPI_NAME_SIZE)
453 "Invalid table signature [%s]: must be exactly 4 characters\n",
458 /* Table signatures are expected to be uppercase */
460 ACPI_STRCPY (LocalSignature, Signature);
461 AcpiUtStrupr (LocalSignature);
463 /* To be friendly, handle tables whose signatures do not match the name */
465 if (ACPI_COMPARE_NAME (LocalSignature, "FADT"))
467 ACPI_STRCPY (LocalSignature, ACPI_SIG_FADT);
469 else if (ACPI_COMPARE_NAME (LocalSignature, "MADT"))
471 ACPI_STRCPY (LocalSignature, ACPI_SIG_MADT);
474 /* Dump all instances of this signature (to handle multiple SSDTs) */
476 for (Instance = 0; Instance < AP_MAX_ACPI_FILES; Instance++)
478 Status = AcpiOsGetTableByName (LocalSignature, Instance,
480 if (ACPI_FAILURE (Status))
482 /* AE_LIMIT means that no more tables are available */
484 if (Status == AE_LIMIT)
490 "Could not get ACPI table with signature [%s], %s\n",
491 LocalSignature, AcpiFormatException (Status));
495 TableStatus = ApDumpTableBuffer (Table, Instance, Address);
504 /* Something seriously bad happened if the loop terminates here */
510 /******************************************************************************
512 * FUNCTION: ApDumpTableFromFile
514 * PARAMETERS: Pathname - File containing the binary ACPI table
518 * DESCRIPTION: Dump an ACPI table from a binary file
520 ******************************************************************************/
523 ApDumpTableFromFile (
526 ACPI_TABLE_HEADER *Table;
528 int TableStatus = -1;
531 /* Get the entire ACPI table from the file */
533 Table = ApGetTableFromFile (Pathname, &FileSize);
539 /* File must be at least as long as the table length */
541 if (Table->Length > FileSize)
544 "Table length (0x%X) is too large for input file (0x%X) %s\n",
545 Table->Length, FileSize, Pathname);
552 "Input file: %s contains table [%4.4s], 0x%X (%u) bytes\n",
553 Pathname, Table->Signature, FileSize, FileSize);
556 TableStatus = ApDumpTableBuffer (Table, 0, 0);
560 return (TableStatus);