/****************************************************************************** * * Module Name: apdump - Dump routines for ACPI tables (acpidump) * *****************************************************************************/ /* * Copyright (C) 2000 - 2016, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. */ #include "acpidump.h" /* Local prototypes */ static int ApDumpTableBuffer ( ACPI_TABLE_HEADER *Table, UINT32 Instance, ACPI_PHYSICAL_ADDRESS Address); /****************************************************************************** * * FUNCTION: ApIsValidHeader * * PARAMETERS: Table - Pointer to table to be validated * * RETURN: TRUE if the header appears to be valid. FALSE otherwise * * DESCRIPTION: Check for a valid ACPI table header * ******************************************************************************/ BOOLEAN ApIsValidHeader ( ACPI_TABLE_HEADER *Table) { if (!ACPI_VALIDATE_RSDP_SIG (Table->Signature)) { /* Make sure signature is all ASCII and a valid ACPI name */ if (!AcpiUtValidAcpiName (Table->Signature)) { AcpiLogError ("Table signature (0x%8.8X) is invalid\n", *(UINT32 *) Table->Signature); return (FALSE); } /* Check for minimum table length */ if (Table->Length < sizeof (ACPI_TABLE_HEADER)) { AcpiLogError ("Table length (0x%8.8X) is invalid\n", Table->Length); return (FALSE); } } return (TRUE); } /****************************************************************************** * * FUNCTION: ApIsValidChecksum * * PARAMETERS: Table - Pointer to table to be validated * * RETURN: TRUE if the checksum appears to be valid. FALSE otherwise. * * DESCRIPTION: Check for a valid ACPI table checksum. * ******************************************************************************/ BOOLEAN ApIsValidChecksum ( ACPI_TABLE_HEADER *Table) { ACPI_STATUS Status; ACPI_TABLE_RSDP *Rsdp; if (ACPI_VALIDATE_RSDP_SIG (Table->Signature)) { /* * Checksum for RSDP. * Note: Other checksums are computed during the table dump. */ Rsdp = ACPI_CAST_PTR (ACPI_TABLE_RSDP, Table); Status = AcpiTbValidateRsdp (Rsdp); } else { Status = AcpiTbVerifyChecksum (Table, Table->Length); } if (ACPI_FAILURE (Status)) { AcpiLogError ("%4.4s: Warning: wrong checksum in table\n", Table->Signature); } return (AE_OK); } /****************************************************************************** * * FUNCTION: ApGetTableLength * * PARAMETERS: Table - Pointer to the table * * RETURN: Table length * * DESCRIPTION: Obtain table length according to table signature. * ******************************************************************************/ UINT32 ApGetTableLength ( ACPI_TABLE_HEADER *Table) { ACPI_TABLE_RSDP *Rsdp; /* Check if table is valid */ if (!ApIsValidHeader (Table)) { return (0); } if (ACPI_VALIDATE_RSDP_SIG (Table->Signature)) { Rsdp = ACPI_CAST_PTR (ACPI_TABLE_RSDP, Table); return (AcpiTbGetRsdpLength (Rsdp)); } /* Normal ACPI table */ return (Table->Length); } /****************************************************************************** * * FUNCTION: ApDumpTableBuffer * * PARAMETERS: Table - ACPI table to be dumped * Instance - ACPI table instance no. to be dumped * Address - Physical address of the table * * RETURN: None * * DESCRIPTION: Dump an ACPI table in standard ASCII hex format, with a * header that is compatible with the AcpiXtract utility. * ******************************************************************************/ static int ApDumpTableBuffer ( ACPI_TABLE_HEADER *Table, UINT32 Instance, ACPI_PHYSICAL_ADDRESS Address) { UINT32 TableLength; TableLength = ApGetTableLength (Table); /* Print only the header if requested */ if (Gbl_SummaryMode) { AcpiTbPrintTableHeader (Address, Table); return (0); } /* Dump to binary file if requested */ if (Gbl_BinaryMode) { return (ApWriteToBinaryFile (Table, Instance)); } /* * Dump the table with header for use with acpixtract utility. * Note: simplest to just always emit a 64-bit address. AcpiXtract * utility can handle this. */ AcpiUtFilePrintf (Gbl_OutputFile, "%4.4s @ 0x%8.8X%8.8X\n", Table->Signature, ACPI_FORMAT_UINT64 (Address)); AcpiUtDumpBufferToFile (Gbl_OutputFile, ACPI_CAST_PTR (UINT8, Table), TableLength, DB_BYTE_DISPLAY, 0); AcpiUtFilePrintf (Gbl_OutputFile, "\n"); return (0); } /****************************************************************************** * * FUNCTION: ApDumpAllTables * * PARAMETERS: None * * RETURN: Status * * DESCRIPTION: Get all tables from the RSDT/XSDT (or at least all of the * tables that we can possibly get). * ******************************************************************************/ int ApDumpAllTables ( void) { ACPI_TABLE_HEADER *Table; UINT32 Instance = 0; ACPI_PHYSICAL_ADDRESS Address; ACPI_STATUS Status; int TableStatus; UINT32 i; /* Get and dump all available ACPI tables */ for (i = 0; i < AP_MAX_ACPI_FILES; i++) { Status = AcpiOsGetTableByIndex (i, &Table, &Instance, &Address); if (ACPI_FAILURE (Status)) { /* AE_LIMIT means that no more tables are available */ if (Status == AE_LIMIT) { return (0); } else if (i == 0) { AcpiLogError ("Could not get ACPI tables, %s\n", AcpiFormatException (Status)); return (-1); } else { AcpiLogError ("Could not get ACPI table at index %u, %s\n", i, AcpiFormatException (Status)); continue; } } TableStatus = ApDumpTableBuffer (Table, Instance, Address); ACPI_FREE (Table); if (TableStatus) { break; } } /* Something seriously bad happened if the loop terminates here */ return (-1); } /****************************************************************************** * * FUNCTION: ApDumpTableByAddress * * PARAMETERS: AsciiAddress - Address for requested ACPI table * * RETURN: Status * * DESCRIPTION: Get an ACPI table via a physical address and dump it. * ******************************************************************************/ int ApDumpTableByAddress ( char *AsciiAddress) { ACPI_PHYSICAL_ADDRESS Address; ACPI_TABLE_HEADER *Table; ACPI_STATUS Status; int TableStatus; UINT64 LongAddress; /* Convert argument to an integer physical address */ Status = AcpiUtStrtoul64 (AsciiAddress, 0, &LongAddress); if (ACPI_FAILURE (Status)) { AcpiLogError ("%s: Could not convert to a physical address\n", AsciiAddress); return (-1); } Address = (ACPI_PHYSICAL_ADDRESS) LongAddress; Status = AcpiOsGetTableByAddress (Address, &Table); if (ACPI_FAILURE (Status)) { AcpiLogError ("Could not get table at 0x%8.8X%8.8X, %s\n", ACPI_FORMAT_UINT64 (Address), AcpiFormatException (Status)); return (-1); } TableStatus = ApDumpTableBuffer (Table, 0, Address); ACPI_FREE (Table); return (TableStatus); } /****************************************************************************** * * FUNCTION: ApDumpTableByName * * PARAMETERS: Signature - Requested ACPI table signature * * RETURN: Status * * DESCRIPTION: Get an ACPI table via a signature and dump it. Handles * multiple tables with the same signature (SSDTs). * ******************************************************************************/ int ApDumpTableByName ( char *Signature) { char LocalSignature [ACPI_NAME_SIZE + 1]; UINT32 Instance; ACPI_TABLE_HEADER *Table; ACPI_PHYSICAL_ADDRESS Address; ACPI_STATUS Status; int TableStatus; if (strlen (Signature) != ACPI_NAME_SIZE) { AcpiLogError ( "Invalid table signature [%s]: must be exactly 4 characters\n", Signature); return (-1); } /* Table signatures are expected to be uppercase */ strcpy (LocalSignature, Signature); AcpiUtStrupr (LocalSignature); /* To be friendly, handle tables whose signatures do not match the name */ if (ACPI_COMPARE_NAME (LocalSignature, "FADT")) { strcpy (LocalSignature, ACPI_SIG_FADT); } else if (ACPI_COMPARE_NAME (LocalSignature, "MADT")) { strcpy (LocalSignature, ACPI_SIG_MADT); } /* Dump all instances of this signature (to handle multiple SSDTs) */ for (Instance = 0; Instance < AP_MAX_ACPI_FILES; Instance++) { Status = AcpiOsGetTableByName (LocalSignature, Instance, &Table, &Address); if (ACPI_FAILURE (Status)) { /* AE_LIMIT means that no more tables are available */ if (Status == AE_LIMIT) { return (0); } AcpiLogError ( "Could not get ACPI table with signature [%s], %s\n", LocalSignature, AcpiFormatException (Status)); return (-1); } TableStatus = ApDumpTableBuffer (Table, Instance, Address); ACPI_FREE (Table); if (TableStatus) { break; } } /* Something seriously bad happened if the loop terminates here */ return (-1); } /****************************************************************************** * * FUNCTION: ApDumpTableFromFile * * PARAMETERS: Pathname - File containing the binary ACPI table * * RETURN: Status * * DESCRIPTION: Dump an ACPI table from a binary file * ******************************************************************************/ int ApDumpTableFromFile ( char *Pathname) { ACPI_TABLE_HEADER *Table; UINT32 FileSize = 0; int TableStatus = -1; /* Get the entire ACPI table from the file */ Table = ApGetTableFromFile (Pathname, &FileSize); if (!Table) { return (-1); } /* File must be at least as long as the table length */ if (Table->Length > FileSize) { AcpiLogError ( "Table length (0x%X) is too large for input file (0x%X) %s\n", Table->Length, FileSize, Pathname); goto Exit; } if (Gbl_VerboseMode) { AcpiLogError ( "Input file: %s contains table [%4.4s], 0x%X (%u) bytes\n", Pathname, Table->Signature, FileSize, FileSize); } TableStatus = ApDumpTableBuffer (Table, 0, 0); Exit: ACPI_FREE (Table); return (TableStatus); }