sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ShellPkg: acpiview: Add support for parsing FACS

Browse Source 
Add support for parsing the ACPI FACS table.

The FADT parser has also been updated as it
links the FACS table using the FIRMWARE_CTRL
or X_FIRMWARE_CTRL fields.

Since the FACS table does not follow the standard
ACPI header, the FADT parser extracts the FACS
signature, length and version fields before invoking
the FACS parser.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Reviewed-by: Zhichao Gao <zhichao.gao@intel.com>
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
This commit is contained in:
Sami Mujawar
2019-11-22 19:31:45 +08:00
committed by mergify[bot]
parent c9416efeef
commit d5cf0fba20
5 changed files with 179 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Facs/FacsParser.c Normal file
View File

@ -0,0 +1,71 @@
/** @file
FACS table parser
Copyright (c) 2019, ARM Limited. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
@par Reference(s):
- ACPI 6.3 Specification - January 2019
**/
#include <IndustryStandard/Acpi.h>
#include <Library/UefiLib.h>
#include "AcpiParser.h"
#include "AcpiTableParser.h"
/**
An ACPI_PARSER array describing the ACPI FACS Table.
**/
STATIC CONST ACPI_PARSER FacsParser[] = {
{L"Signature", 4, 0, L"%c%c%c%c", Dump4Chars, NULL, NULL, NULL},
{L"Length", 4, 4, L"%d", NULL, NULL, NULL, NULL},
{L"Hardware Signature", 4, 8, L"0x%x", NULL, NULL, NULL, NULL},
{L"Firmware Waking Vector", 4, 12, L"0x%x", NULL, NULL, NULL, NULL},
{L"Global Lock", 4, 16, L"0x%x", NULL, NULL, NULL, NULL},
{L"Flags", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},
{L"X Firmware Walking Vector", 8, 24, L"0x%lx", NULL, NULL, NULL, NULL},
{L"Version", 1, 32, L"%d", NULL, NULL, NULL, NULL},
{L"Reserved", 3, 33, L"%x %x %x", Dump3Chars, NULL, NULL, NULL},
{L"OSPM Flags", 4, 36, L"0x%x", NULL, NULL, NULL, NULL},
{L"Reserved", 8, 40, L"%x %x %x %x %x %x %x %x", Dump8Chars, NULL, NULL,
NULL},
{L"Reserved", 8, 48, L"%x %x %x %x %x %x %x %x", Dump8Chars, NULL, NULL,
NULL},
{L"Reserved", 8, 56, L"%x %x %x %x %x %x %x %x", Dump8Chars, NULL, NULL,
NULL}
};
/**
This function parses the ACPI FACS table.
When trace is enabled this function parses the FACS table and
traces the ACPI table fields.
This function also performs validation of the ACPI table fields.
@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.
**/
VOID
EFIAPI
ParseAcpiFacs (
IN BOOLEAN Trace,
IN UINT8* Ptr,
IN UINT32 AcpiTableLength,
IN UINT8 AcpiTableRevision
)
{
if (!Trace) {
return;
}
ParseAcpi (
Trace,
0,
"FACS",
Ptr,
AcpiTableLength,
PARSER_PARAMS (FacsParser)
);
}