ShellPkg/UefiShellAcpiViewCommandLib: Add support for PPTT

Added the acpiview parser for the PPTT table.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Krzysztof Koch <krzysztof.koch@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>

1 files changed, 362 insertions, 0 deletions

diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Pptt/PpttParser.c b/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Pptt/PpttParser.c
new file mode 100644
index 0000000..d97ddf8
--- /dev/null
+++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Pptt/PpttParser.c
@@ -0,0 +1,362 @@
+/** @file

+  PPTT table parser

+

+  Copyright (c) 2019, 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.

+

+  @par Reference(s):

+    - ACPI 6.2 Specification - Errata A, September 2017

+**/

+

+#include <Library/PrintLib.h>

+#include <Library/UefiLib.h>

+#include "AcpiParser.h"

+

+// Local variables

+STATIC CONST UINT8*  ProcessorTopologyStructureType;

+STATIC CONST UINT8*  ProcessorTopologyStructureLength;

+STATIC CONST UINT32* NumberOfPrivateResources;

+STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo;

+

+/**

+  An ACPI_PARSER array describing the ACPI PPTT Table.

+**/

+STATIC CONST ACPI_PARSER PpttParser[] = {

+  PARSE_ACPI_HEADER (&AcpiHdrInfo)

+};

+

+/**

+  This function validates the Cache Type Structure (Type 1) Line size field.

+

+  @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

+ValidateCacheLineSize (

+  IN UINT8* Ptr,

+  IN VOID*  Context

+  )

+{

+#if defined(MDE_CPU_ARM) || defined (MDE_CPU_AARCH64)

+  // Reference: ARM Architecture Reference Manual ARMv8 (D.a)

+  // Section D12.2.25: CCSIDR_EL1, Current Cache Size ID Register

+  //   LineSize, bits [2:0]

+  //     (Log2(Number of bytes in cache line)) - 4.

+

+  UINT16 LineSize;

+  LineSize = *(UINT16*)Ptr;

+

+  if ((LineSize < 16) || (LineSize > 2048)) {

+    IncrementErrorCount ();

+    Print (

+      L"\nERROR: The cache line size must be between 16 and 2048 bytes"

+        L" on ARM Platforms."

+      );

+    return;

+  }

+

+  if ((LineSize & (LineSize - 1)) != 0) {

+    IncrementErrorCount ();

+    Print (L"\nERROR: The cache line size is not a power of 2.");

+  }

+#endif

+}

+

+/**

+  This function validates the Cache Type Structure (Type 1) Attributes field.

+

+  @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

+ValidateCacheAttributes (

+  IN UINT8* Ptr,

+  IN VOID*  Context

+  )

+{

+#if defined(MDE_CPU_ARM) || defined (MDE_CPU_AARCH64)

+  // Reference: Advanced Configuration and Power Interface (ACPI) Specification

+  //            Version 6.2 Errata A, September 2017

+  // Table 5-153: Cache Type Structure

+

+  UINT8 Attributes;

+  Attributes = *(UINT8*)Ptr;

+

+  if ((Attributes & 0xE0) != 0) {

+    IncrementErrorCount ();

+    Print (

+      L"\nERROR: Attributes bits [7:5] are reserved and must be zero.",

+      Attributes

+      );

+    return;

+  }

+#endif

+}

+

+/**

+  An ACPI_PARSER array describing the processor topology structure header.

+**/

+STATIC CONST ACPI_PARSER ProcessorTopologyStructureHeaderParser[] = {

+  {L"Type", 1, 0, NULL, NULL, (VOID**)&ProcessorTopologyStructureType,

+   NULL, NULL},

+  {L"Length", 1, 1, NULL, NULL, (VOID**)&ProcessorTopologyStructureLength,

+   NULL, NULL},

+  {L"Reserved", 2, 2, NULL, NULL, NULL, NULL, NULL}

+};

+

+/**

+  An ACPI_PARSER array describing the Processor Hierarchy Node Structure - Type 0.

+**/

+STATIC CONST ACPI_PARSER ProcessorHierarchyNodeStructureParser[] = {

+  {L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"Length", 1, 1, L"%d", NULL, NULL, NULL, NULL},

+  {L"Reserved", 2, 2, L"0x%x", NULL, NULL, NULL, NULL},

+

+  {L"Flags", 4, 4, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"Parent", 4, 8, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"ACPI Processor ID", 4, 12, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"Number of private resources", 4, 16, L"%d", NULL,

+   (VOID**)&NumberOfPrivateResources, NULL, NULL}

+};

+

+/**

+  An ACPI_PARSER array describing the Cache Type Structure - Type 1.

+**/

+STATIC CONST ACPI_PARSER CacheTypeStructureParser[] = {

+  {L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"Length", 1, 1, L"%d", NULL, NULL, NULL, NULL},

+  {L"Reserved", 2, 2, L"0x%x", NULL, NULL, NULL, NULL},

+

+  {L"Flags", 4, 4, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"Next Level of Cache", 4, 8, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"Size", 4, 12, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"Number of sets", 4, 16, L"%d", NULL, NULL, NULL, NULL},

+  {L"Associativity", 1, 20, L"%d", NULL, NULL, NULL, NULL},

+  {L"Attributes", 1, 21, L"0x%x", NULL, NULL, ValidateCacheAttributes, NULL},

+  {L"Line size", 2, 22, L"%d", NULL, NULL, ValidateCacheLineSize, NULL}

+};

+

+/**

+  An ACPI_PARSER array describing the ID Type Structure - Type 2.

+**/

+STATIC CONST ACPI_PARSER IdStructureParser[] = {

+  {L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"Length", 1, 1, L"%d", NULL, NULL, NULL, NULL},

+  {L"Reserved", 2, 2, L"0x%x", NULL, NULL, NULL, NULL},

+

+  {L"VENDOR_ID", 4, 4, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"LEVEL_1_ID", 8, 8, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"LEVEL_2_ID", 8, 16, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"MAJOR_REV", 2, 24, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"MINOR_REV", 2, 26, L"0x%x", NULL, NULL, NULL, NULL},

+  {L"SPIN_REV", 2, 28, L"0x%x", NULL, NULL, NULL, NULL},

+};

+

+/**

+  This function parses the Processor Hierarchy Node Structure (Type 0).

+

+  @param [in] Ptr     Pointer to the start of the Processor Hierarchy Node

+                      Structure data.

+  @param [in] Length  Length of the Processor Hierarchy Node Structure.

+**/

+STATIC

+VOID

+DumpProcessorHierarchyNodeStructure (

+  IN UINT8* Ptr,

+  IN UINT8  Length

+  )

+{

+  UINT8  Offset;

+  UINT8* PrivateResourcePtr;

+  UINT32 Index;

+  CHAR16 Buffer[OUTPUT_FIELD_COLUMN_WIDTH];

+

+  Offset = ParseAcpi (

+             TRUE,

+             2,

+             "Processor Hierarchy Node Structure",

+             Ptr,

+             Length,

+             PARSER_PARAMS (ProcessorHierarchyNodeStructureParser)

+             );

+

+  PrivateResourcePtr = Ptr + Offset;

+  Index = 0;

+  while (Index < *NumberOfPrivateResources) {

+    UnicodeSPrint (

+      Buffer,

+      sizeof (Buffer),

+      L"Private resources [%d]",

+      Index

+      );

+

+    PrintFieldName (4, Buffer);

+    Print (

+      L"0x%x\n",

+      *((UINT32*) PrivateResourcePtr)

+      );

+

+    PrivateResourcePtr += sizeof(UINT32);

+    Index++;

+  }

+}

+

+/**

+  This function parses the Cache Type Structure (Type 1).

+

+  @param [in] Ptr     Pointer to the start of the Cache Type Structure data.

+  @param [in] Length  Length of the Cache Type Structure.

+**/

+STATIC

+VOID

+DumpCacheTypeStructure (

+  IN UINT8* Ptr,

+  IN UINT8  Length

+  )

+{

+  ParseAcpi (

+    TRUE,

+    2,

+    "Cache Type Structure",

+    Ptr,

+    Length,

+    PARSER_PARAMS (CacheTypeStructureParser)

+    );

+}

+

+/**

+  This function parses the ID Structure (Type 2).

+

+  @param [in] Ptr     Pointer to the start of the ID Structure data.

+  @param [in] Length  Length of the ID Structure.

+**/

+STATIC

+VOID

+DumpIDStructure (

+  IN UINT8* Ptr,

+  IN UINT8 Length

+  )

+{

+  ParseAcpi (

+    TRUE,

+    2,

+    "ID Structure",

+    Ptr,

+    Length,

+    PARSER_PARAMS (IdStructureParser)

+    );

+}

+

+/**

+  This function parses the ACPI PPTT table.

+  When trace is enabled this function parses the PPTT table and

+  traces the ACPI table fields.

+

+  This function parses the following processor topology structures:

+    - Processor hierarchy node structure (Type 0)

+    - Cache Type Structure (Type 1)

+    - ID structure (Type 2)

+

+  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

+ParseAcpiPptt (

+  IN BOOLEAN Trace,

+  IN UINT8*  Ptr,

+  IN UINT32  AcpiTableLength,

+  IN UINT8   AcpiTableRevision

+  )

+{

+  UINT32 Offset;

+  UINT8* ProcessorTopologyStructurePtr;

+

+  if (!Trace) {

+    return;

+  }

+

+  Offset = ParseAcpi (

+             TRUE,

+             0,

+             "PPTT",

+             Ptr,

+             AcpiTableLength,

+             PARSER_PARAMS (PpttParser)

+             );

+  ProcessorTopologyStructurePtr = Ptr + Offset;

+

+  while (Offset < AcpiTableLength) {

+    // Parse Processor Hierarchy Node Structure to obtain Type and Length.

+    ParseAcpi (

+      FALSE,

+      0,

+      NULL,

+      ProcessorTopologyStructurePtr,

+      4,  // Length of the processor topology structure header is 4 bytes

+      PARSER_PARAMS (ProcessorTopologyStructureHeaderParser)

+      );

+

+    if ((Offset + (*ProcessorTopologyStructureLength)) > AcpiTableLength) {

+      IncrementErrorCount ();

+      Print (

+        L"ERROR: Invalid processor topology structure length:"

+          L" Type = %d, Length = %d\n",

+        *ProcessorTopologyStructureType,

+        *ProcessorTopologyStructureLength

+        );

+      break;

+    }

+

+    PrintFieldName (2, L"* Structure Offset *");

+    Print (L"0x%x\n", Offset);

+

+    switch (*ProcessorTopologyStructureType) {

+      case EFI_ACPI_6_2_PPTT_TYPE_PROCESSOR:

+        DumpProcessorHierarchyNodeStructure (

+          ProcessorTopologyStructurePtr,

+          *ProcessorTopologyStructureLength

+          );

+        break;

+      case EFI_ACPI_6_2_PPTT_TYPE_CACHE:

+        DumpCacheTypeStructure (

+          ProcessorTopologyStructurePtr,

+          *ProcessorTopologyStructureLength

+          );

+        break;

+      case EFI_ACPI_6_2_PPTT_TYPE_ID:

+        DumpIDStructure (

+          ProcessorTopologyStructurePtr,

+          *ProcessorTopologyStructureLength

+          );

+        break;

+      default:

+        IncrementErrorCount ();

+        Print (

+          L"ERROR: Unknown processor topology structure:"

+            L" Type = %d, Length = %d\n",

+          *ProcessorTopologyStructureType,

+          *ProcessorTopologyStructureLength

+          );

+    }

+

+    ProcessorTopologyStructurePtr += *ProcessorTopologyStructureLength;

+    Offset += *ProcessorTopologyStructureLength;

+  } // while

+}