[edk2-devel] [PATCH v1 3/7] ShellPkg: Update Acpiview PPTT parser to ACPI 6.4

[Chris Jones]

Bugzilla: 3697 (https://bugzilla.tianocore.org/show_bug.cgi?id=3697)

Update the Acpiview PPTT parser to use Acpi64.h. As part of the changes,
remove support for parsing PPTT type 2 ID structure.

Signed-off-by: Chris Jones <christopher.jones at arm.com>
---
 ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Pptt/PpttParser.c     | 61 ++++----------------
 ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.c |  2 +-
 2 files changed, 12 insertions(+), 51 deletions(-)

diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Pptt/PpttParser.c b/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Pptt/PpttParser.c
index acd2b81bb3258c7322aa10d2c0e0d842d89e358b..bce9edcedde50e53035059e6da57b9449209a674 100644
--- a/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Pptt/PpttParser.c
+++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Pptt/PpttParser.c
@@ -1,11 +1,11 @@
 /** @file
   PPTT table parser
 
-  Copyright (c) 2019 - 2020, ARM Limited. All rights reserved.
+  Copyright (c) 2019 - 2021, ARM Limited. All rights reserved.
   SPDX-License-Identifier: BSD-2-Clause-Patent
 
   @par Reference(s):
-    - ACPI 6.3 Specification - January 2019
+    - ACPI 6.4 Specification - January 2021
     - ARM Architecture Reference Manual ARMv8 (D.a)
 **/
 
@@ -157,8 +157,8 @@ ValidateCacheAttributes (
   )
 {
   // Reference: Advanced Configuration and Power Interface (ACPI) Specification
-  //            Version 6.2 Errata A, September 2017
-  // Table 5-153: Cache Type Structure
+  //            Version 6.4, January 2021
+  // Table 5-140: Cache Type Structure
   UINT8 Attributes;
   Attributes = *(UINT8*)Ptr;
 
@@ -222,22 +222,6 @@ STATIC CONST ACPI_PARSER CacheTypeStructureParser[] = {
   {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, NULL, Dump4Chars, 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).
 
@@ -335,29 +319,6 @@ DumpCacheTypeStructure (
     );
 }
 
-/**
-  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
@@ -366,7 +327,6 @@ DumpIDStructure (
   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.
 
@@ -444,22 +404,23 @@ ParseAcpiPptt (
     Print (L"0x%x\n", Offset);
 
     switch (*ProcessorTopologyStructureType) {
-      case EFI_ACPI_6_2_PPTT_TYPE_PROCESSOR:
+      case EFI_ACPI_6_4_PPTT_TYPE_PROCESSOR:
         DumpProcessorHierarchyNodeStructure (
           ProcessorTopologyStructurePtr,
           *ProcessorTopologyStructureLength
           );
         break;
-      case EFI_ACPI_6_2_PPTT_TYPE_CACHE:
+      case EFI_ACPI_6_4_PPTT_TYPE_CACHE:
         DumpCacheTypeStructure (
           ProcessorTopologyStructurePtr,
           *ProcessorTopologyStructureLength
           );
         break;
-      case EFI_ACPI_6_2_PPTT_TYPE_ID:
-        DumpIDStructure (
-          ProcessorTopologyStructurePtr,
-          *ProcessorTopologyStructureLength
+      case EFI_ACPI_6_3_PPTT_TYPE_ID:
+        IncrementErrorCount ();
+        Print (
+          L"ERROR: PPTT Type 2 - Processor ID is deprecated and must not be"
+            L"used.\n"
           );
         break;
       default:
diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.c b/ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.c
index d725cad14c5d018e2004eb8e33c845aa9c719429..ab9e6c619d70df4f79d782416037d7bef62c92d5 100644
--- a/ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.c
+++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/UefiShellAcpiViewCommandLib.c
@@ -62,7 +62,7 @@ ACPI_TABLE_PARSER ParserList[] = {
    ParseAcpiMcfg},
   {EFI_ACPI_6_4_PLATFORM_COMMUNICATIONS_CHANNEL_TABLE_SIGNATURE,
    ParseAcpiPcct},
-  {EFI_ACPI_6_2_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE_STRUCTURE_SIGNATURE,
+  {EFI_ACPI_6_4_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE_STRUCTURE_SIGNATURE,
    ParseAcpiPptt},
   {RSDP_TABLE_INFO, ParseAcpiRsdp},
   {EFI_ACPI_6_2_SYSTEM_LOCALITY_INFORMATION_TABLE_SIGNATURE, ParseAcpiSlit},
-- 
Guid("CE165669-3EF3-493F-B85D-6190EE5B9759")



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