ShellPkg: Add acpiview tool to dump ACPI tables

This program is provided to allow examination of ACPI table contents
from the UEFI Shell.  This can help with investigations, especially at
that stage where the tables are not enabling an OS to boot.
The program is not exhaustive, and only encapsulates detailed knowledge
of a limited number of table types.

Default behaviour is to display the content of all tables installed.
'Known' table types will be parsed and displayed with descriptions and
field values.  Where appropriate a degree of consistency checking is
done and errors may be reported in the output.
Other table types will be displayed as an array of Hexadecimal bytes.

To facilitate debugging, the -s and -d options can be used to generate a
binary file image of a table that can be copied elsewhere for
investigation using tools such as those provided by acpica.org.  This is
especially relevant for AML type tables like DSDT and SSDT.

The inspiration for this is the existing smbiosview Debug1 Shell
command.

Many tables are not explicitly handled, in part because no examples are
available for our testing.

The program is designed to be extended to new tables with minimal
effort, and contributions are invited.

Change-Id: Ifa23dc80ab8ab042c56e88424847e796a8122a7c
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

1 files changed, 126 insertions, 0 deletions

diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiTableParser.h b/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiTableParser.h
new file mode 100644
index 0000000000..a69d56da6c
--- /dev/null
+++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiTableParser.h
@@ -0,0 +1,126 @@
+/**

+  Header file for ACPI table parser

+

+  Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.

+  This program and the accompanying materials

+  are licensed and made available under the terms and conditions of the BSD License

+  which accompanies this distribution.  The full text of the license may be found at

+  http://opensource.org/licenses/bsd-license.php

+

+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,

+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

+**/

+

+#ifndef ACPITABLEPARSER_H_

+#define ACPITABLEPARSER_H_

+

+/** The maximum number of ACPI table parsers.

+*/

+#define MAX_ACPI_TABLE_PARSERS          16

+

+/** An invalid/NULL signature value.

+*/

+#define ACPI_PARSER_SIGNATURE_NULL      0

+

+/** A function that parses the ACPI table.

+

+  @param [in] Trace              If TRUE, trace the ACPI fields.

+  @param [in] Ptr                Pointer to the start of the buffer.

+  @param [in] AcpiTableLength    Length of the ACPI table.

+  @param [in] AcpiTableRevision  Revision of the ACPI table.

+*/

+typedef

+VOID

+(EFIAPI * PARSE_ACPI_TABLE_PROC) (

+  IN BOOLEAN Trace,

+  IN UINT8*  Ptr,

+  IN UINT32  AcpiTableLength,

+  IN UINT8   AcpiTableRevision

+  );

+

+/** The ACPI table parser information

+*/

+typedef struct AcpiTableParser {

+  /// ACPI table signature

+  UINT32                  Signature;

+

+  /// The ACPI table parser function.

+  PARSE_ACPI_TABLE_PROC   Parser;

+} ACPI_TABLE_PARSER;

+

+/** Register the ACPI table Parser

+

+  This function registers the ACPI table parser.

+

+  @param [in] Signature   The ACPI table signature.

+  @param [in] ParserProc  The ACPI table parser.

+

+  @retval EFI_SUCCESS           The parser is registered.

+  @retval EFI_INVALID_PARAMETER A parameter is invalid.

+  @retval EFI_ALREADY_STARTED   The parser for the Table

+                                was already registered.

+  @retval EFI_OUT_OF_RESOURCES  No space to register the

+                                parser.

+*/

+EFI_STATUS

+EFIAPI

+RegisterParser (

+  IN  UINT32                  Signature,

+  IN  PARSE_ACPI_TABLE_PROC   ParserProc

+);

+

+/** Deregister the ACPI table Parser

+

+  This function deregisters the ACPI table parser.

+

+  @param [in] Signature   The ACPI table signature.

+

+  @retval EFI_SUCCESS           The parser was deregistered.

+  @retval EFI_INVALID_PARAMETER A parameter is invalid.

+  @retval EFI_NOT_FOUND         A registered parser was not found.

+*/

+EFI_STATUS

+EFIAPI

+DeregisterParser (

+  IN  UINT32                  Signature

+);

+

+/** This function processes the ACPI tables.

+  This function calls ProcessTableReportOptions() to list the ACPI

+  tables, perform binary dump of the tables and determine if the

+  ACPI fields should be traced.

+

+  This function also invokes the parser for the ACPI tables.

+

+  This function also performs a RAW dump of the ACPI table including

+  the unknown/unparsed ACPI tables and validates the checksum.

+

+  @param [in] Ptr                Pointer to the start of the ACPI

+                                 table data buffer.

+*/

+VOID

+EFIAPI

+ProcessAcpiTable (

+  IN UINT8* Ptr

+  );

+

+/** Get the ACPI table Parser

+

+  This function returns the ACPI table parser proc from the list of

+  registered parsers.

+

+  @param [in]  Signature   The ACPI table signature.

+  @param [out] ParserProc  Pointer to a ACPI table parser proc.

+

+  @retval EFI_SUCCESS           The parser was returned successfully.

+  @retval EFI_INVALID_PARAMETER A parameter is invalid.

+  @retval EFI_NOT_FOUND         A registered parser was not found.

+*/

+EFI_STATUS

+EFIAPI

+GetParser (

+  IN  UINT32                   Signature,

+  OUT PARSE_ACPI_TABLE_PROC *  ParserProc

+  );

+

+#endif // ACPITABLEPARSER_H_