From 558b37b49b2196e82f2e8f9da7939f755343e94a Mon Sep 17 00:00:00 2001 From: Jeshua Smith Date: Thu, 3 Nov 2022 18:14:26 +0000 Subject: [PATCH] ShellPkg/AcpiView: ERST Parser Add a new parser for the Error Record Serialization Table. The ERST table describes how an OS can save and retrieve hardware error information to and from a persistent store. Signed-off-by: Jeshua Smith Reviewed-by: Zhichao Gao --- .../UefiShellAcpiViewCommandLib/AcpiParser.h | 22 ++ .../Parsers/Erst/ErstParser.c | 278 ++++++++++++++++++ .../UefiShellAcpiViewCommandLib.c | 2 + .../UefiShellAcpiViewCommandLib.inf | 2 + 4 files changed, 304 insertions(+) create mode 100644 ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Erst/ErstParser.c diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.h b/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.h index 6a1de4e12b..4b4397961b 100644 --- a/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.h +++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.h @@ -1,6 +1,7 @@ /** @file Header file for ACPI parser + Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved. Copyright (c) 2016 - 2020, Arm Limited. All rights reserved. Copyright (c) 2022, AMD Incorporated. All rights reserved. SPDX-License-Identifier: BSD-2-Clause-Patent @@ -615,6 +616,27 @@ ParseAcpiDsdt ( IN UINT8 AcpiTableRevision ); +/** + This function parses the ACPI ERST table. + When trace is enabled this function parses the ERST 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 +ParseAcpiErst ( + IN BOOLEAN Trace, + IN UINT8 *Ptr, + IN UINT32 AcpiTableLength, + IN UINT8 AcpiTableRevision + ); + /** This function parses the ACPI FACS table. When trace is enabled this function parses the FACS table and diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Erst/ErstParser.c b/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Erst/ErstParser.c new file mode 100644 index 0000000000..f3ae09309c --- /dev/null +++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Erst/ErstParser.c @@ -0,0 +1,278 @@ +/** @file + ERST table parser + + Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved. + Copyright (c) 2016 - 2018, ARM Limited. All rights reserved. + SPDX-License-Identifier: BSD-2-Clause-Patent + + @par Reference(s): + - ACPI 6.5 Specification - August 2022 +**/ + +#include +#include +#include "AcpiParser.h" +#include "AcpiTableParser.h" + +// Local variables +STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo; +STATIC UINT32 *InstructionEntryCount; + +/** + An array of strings describing the Erst actions +**/ +STATIC CONST CHAR16 *ErstActionTable[] = { + L"BEGIN_WRITE_OPERATION", + L"BEGIN_READ_OPERATION", + L"BEGIN_CLEAR_OPERATION", + L"END_OPERATION", + L"SET_RECORD_OFFSET", + L"EXECUTE_OPERATION", + L"CHECK_BUSY_STATUS", + L"GET_COMMAND_STATUS", + L"GET_RECORD_IDENTIFIER", + L"SET_RECORD_IDENTIFIER", + L"GET_RECORD_COUNT", + L"BEGIN_DUMMY_WRITE_OPERATION", + L"RESERVED", + L"GET_ERROR_LOG_ADDRESS_RANGE", + L"GET_ERROR_LOG_ADDRESS_RANGE_LENGTH", + L"GET_ERROR_LOG_ADDRESS_RANGE_ATTRIBUTES", + L"GET_EXECUTE_OPERATION_TIMINGS" +}; + +/** + An array of strings describing the Erst instructions +**/ +STATIC CONST CHAR16 *ErstInstructionTable[] = { + L"READ_REGISTER", + L"READ_REGISTER_VALUE", + L"WRITE_REGISTER", + L"WRITE_REGISTER_VALUE", + L"NOOP", + L"LOAD_VAR1", + L"LOAD_VAR2", + L"STORE_VAR1", + L"ADD", + L"SUBTRACT", + L"ADD_VALUE", + L"SUBTRACT_VALUE", + L"STALL", + L"STALL_WHILE_TRUE", + L"SKIP_NEXT_INSTRUCTION_IF_TRUE", + L"GOTO", + L"SET_SRC_ADDRESS_BASE", + L"SET_DST_ADDRESS_BASE", + L"MOVE_DATA" +}; + +/** + Validate Erst action. + + @param [in] Ptr Pointer to the start of the field data. + @param [in] Context Pointer to context specific information e.g. this + could be a pointer to the ACPI table header. +**/ +STATIC +VOID +EFIAPI +ValidateErstAction ( + IN UINT8 *Ptr, + IN VOID *Context + ) +{ + if (*Ptr > EFI_ACPI_6_4_ERST_GET_EXECUTE_OPERATION_TIMINGS) { + IncrementErrorCount (); + Print (L"\nError: 0x%02x is not a valid action encoding", *Ptr); + } +} + +/** + Validate Erst instruction. + + @param [in] Ptr Pointer to the start of the field data. + @param [in] Context Pointer to context specific information e.g. this + could be a pointer to the ACPI table header. +**/ +STATIC +VOID +EFIAPI +ValidateErstInstruction ( + IN UINT8 *Ptr, + IN VOID *Context + ) +{ + if (*Ptr > EFI_ACPI_6_4_ERST_MOVE_DATA) { + IncrementErrorCount (); + Print (L"\nError: 0x%02x is not a valid instruction encoding", *Ptr); + } +} + +/** + Validate Erst flags. + + @param [in] Ptr Pointer to the start of the field data. + @param [in] Context Pointer to context specific information e.g. this + could be a pointer to the ACPI table header. +**/ +STATIC +VOID +EFIAPI +ValidateErstFlags ( + IN UINT8 *Ptr, + IN VOID *Context + ) +{ + if ((*Ptr & 0xfe) != 0) { + IncrementErrorCount (); + Print (L"\nError: Reserved Flag bits not set to 0"); + } +} + +/** + Looks up and prints the string corresponding to the index. + + @param [in] Table Lookup table. + @param [in] Index Entry to print. + @param [in] NumEntries Number of valid entries in the table. +**/ +STATIC +VOID +EFIAPI +FormatByte ( + IN CONST CHAR16 *Table[], + IN UINT8 Index, + IN UINT8 NumEntries + ) +{ + CONST CHAR16 *String; + + if (Index < NumEntries) { + String = Table[Index]; + } else { + String = L"**INVALID**"; + } + + Print ( + L"0x%02x (%s)", + Index, + String + ); +} + +/** + Prints the Erst Action. + + @param [in] Format Optional format string for tracing the data. + @param [in] Ptr Pointer to the Action byte. +**/ +STATIC +VOID +EFIAPI +DumpErstAction ( + IN CONST CHAR16 *Format OPTIONAL, + IN UINT8 *Ptr + ) +{ + FormatByte (ErstActionTable, *Ptr, ARRAY_SIZE (ErstActionTable)); +} + +/** + Prints the Erst Instruction. + + @param [in] Format Optional format string for tracing the data. + @param [in] Ptr Pointer to the Instruction byte. +**/ +STATIC +VOID +EFIAPI +DumpErstInstruction ( + IN CONST CHAR16 *Format OPTIONAL, + IN UINT8 *Ptr + ) +{ + FormatByte (ErstInstructionTable, *Ptr, ARRAY_SIZE (ErstInstructionTable)); +} + +/** + An ACPI_PARSER array describing the ACPI ERST Table. +**/ +STATIC CONST ACPI_PARSER ErstParser[] = { + PARSE_ACPI_HEADER (&AcpiHdrInfo), + { L"Serialization Header Size", 4, 36, L"0x%x", NULL, NULL, NULL, NULL }, + { L"Reserved", 4, 40, L"0x%x", NULL, NULL, NULL, NULL }, + { L"Instruction Entry Count", 4, 44, L"0x%x", NULL, (VOID **)&InstructionEntryCount, NULL, NULL } +}; + +/** + An ACPI_PARSER array describing the Serialization Instruction Entry structure. +**/ +STATIC CONST ACPI_PARSER SerializationInstructionEntryParser[] = { + { L"Serialization Action", 1, 0, L"0x%x", DumpErstAction, NULL, ValidateErstAction, NULL }, + { L"Instruction", 1, 1, L"0x%x", DumpErstInstruction, NULL, ValidateErstInstruction, NULL }, + { L"Flags", 1, 2, L"0x%x", NULL, NULL, ValidateErstFlags, NULL }, + { L"Reserved", 1, 3, L"0x%x", NULL, NULL, NULL, NULL }, + { L"Register Region", 12, 4, NULL, DumpGas, NULL, NULL, NULL }, + { L"Value", 8, 16, L"0x%llx", NULL, NULL, NULL, NULL }, + { L"Mask", 8, 24, L"0x%llx", NULL, NULL, NULL, NULL } +}; + +/** + This function parses the ACPI ERST table. + When trace is enabled this function parses the ERST 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 +ParseAcpiErst ( + IN BOOLEAN Trace, + IN UINT8 *Ptr, + IN UINT32 AcpiTableLength, + IN UINT8 AcpiTableRevision + ) +{ + UINT32 Offset; + + if (!Trace) { + return; + } + + Offset = ParseAcpi ( + Trace, + 0, + "ERST", + Ptr, + AcpiTableLength, + PARSER_PARAMS (ErstParser) + ); + + if (sizeof (EFI_ACPI_6_4_ERST_SERIALIZATION_INSTRUCTION_ENTRY)*(*InstructionEntryCount) != (AcpiTableLength - Offset)) { + IncrementErrorCount (); + Print ( + L"ERROR: Invalid InstructionEntryCount. " \ + L"Count = %d. Offset = %d. AcpiTableLength = %d.\n", + *InstructionEntryCount, + Offset, + AcpiTableLength + ); + return; + } + + while (Offset < AcpiTableLength) { + Offset += ParseAcpi ( + Trace, + 2, + "Serialization Action", + Ptr + Offset, + (AcpiTableLength - Offset), + PARSER_PARAMS (SerializationInstructionEntryParser) + ); + } +} diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.c b/ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.c index 53f06fc757..bbac125bb9 100644 --- a/ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.c +++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.c @@ -1,6 +1,7 @@ /** @file Main file for 'acpiview' Shell command function. + Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved. Copyright (c) 2016 - 2021, Arm Limited. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent **/ @@ -53,6 +54,7 @@ ACPI_TABLE_PARSER ParserList[] = { { EFI_ACPI_6_2_DEBUG_PORT_2_TABLE_SIGNATURE, ParseAcpiDbg2 }, { EFI_ACPI_6_2_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE, ParseAcpiDsdt }, + { EFI_ACPI_6_4_ERROR_RECORD_SERIALIZATION_TABLE_SIGNATURE, ParseAcpiErst }, { EFI_ACPI_6_3_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE, ParseAcpiFacs }, { EFI_ACPI_6_2_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE, ParseAcpiFadt }, { EFI_ACPI_6_4_GENERIC_TIMER_DESCRIPTION_TABLE_SIGNATURE, ParseAcpiGtdt }, diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.inf b/ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.inf index b03ec1a31b..a38965a4bf 100644 --- a/ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.inf +++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.inf @@ -1,6 +1,7 @@ ## @file # Provides Shell 'acpiview' command functions # +# Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved. # Copyright (c) 2016 - 2020, Arm Limited. All rights reserved.
# # SPDX-License-Identifier: BSD-2-Clause-Patent @@ -32,6 +33,7 @@ Parsers/Bgrt/BgrtParser.c Parsers/Dbg2/Dbg2Parser.c Parsers/Dsdt/DsdtParser.c + Parsers/Erst/ErstParser.c Parsers/Facs/FacsParser.c Parsers/Fadt/FadtParser.c Parsers/Gtdt/GtdtParser.c -- 2.39.2