acpica-tools/0030-Support-PPTT-in-a-big-endian-world.patch

From 8923211d8bc1b0e4d3af6ff31ed6479057f612f6 Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Fri, 25 Sep 2020 17:16:12 -0600
Subject: [PATCH 30/45] Support PPTT in a big-endian world

Signed-off-by: Al Stone <ahs3@redhat.com>
---
 source/common/dmtbdump2.c  | 17 ++++++++++-------
 source/compiler/dttable2.c |  7 +++++--
 2 files changed, 15 insertions(+), 9 deletions(-)

Index: acpica-unix2-20211217/source/common/dmtbdump2.c
===================================================================
--- acpica-unix2-20211217.orig/source/common/dmtbdump2.c
+++ acpica-unix2-20211217/source/common/dmtbdump2.c
@@ -2194,6 +2194,8 @@ AcpiDmDumpPptt (
     UINT32                  Offset = sizeof (ACPI_TABLE_FPDT);
     ACPI_DMTABLE_INFO       *InfoTable;
     UINT32                  i;
+    UINT32                  TableLength = AcpiUtReadUint32 (&Table->Length);
+    UINT32                  NumPrivRes;
 
 
     /* There is no main table (other than the standard ACPI header) */
@@ -2201,7 +2203,7 @@ AcpiDmDumpPptt (
     /* Subtables */
 
     Offset = sizeof (ACPI_TABLE_HEADER);
-    while (Offset < Table->Length)
+    while (Offset < TableLength)
     {
         AcpiOsPrintf ("\n");
 
@@ -2213,7 +2215,7 @@ AcpiDmDumpPptt (
             AcpiOsPrintf ("Invalid subtable length\n");
             return;
         }
-        Status = AcpiDmDumpTable (Table->Length, Offset, Subtable,
+        Status = AcpiDmDumpTable (TableLength, Offset, Subtable,
             Subtable->Length, AcpiDmTableInfoPpttHdr);
         if (ACPI_FAILURE (Status))
         {
@@ -2255,7 +2257,7 @@ AcpiDmDumpPptt (
             AcpiOsPrintf ("Invalid subtable length\n");
             return;
         }
-        Status = AcpiDmDumpTable (Table->Length, Offset, Subtable,
+        Status = AcpiDmDumpTable (TableLength, Offset, Subtable,
             Subtable->Length, InfoTable);
         if (ACPI_FAILURE (Status))
         {
@@ -2271,15 +2273,16 @@ AcpiDmDumpPptt (
 
             /* Dump SMBIOS handles */
 
-            if ((UINT8)(Subtable->Length - SubtableOffset) <
-                (UINT8)(PpttProcessor->NumberOfPrivResources * 4))
+            NumPrivRes = AcpiUtReadUint32 (&PpttProcessor->NumberOfPrivResources);
+            if ((UINT8) (Subtable->Length - SubtableOffset) <
+                (UINT8) (NumPrivRes * 4))
             {
                 AcpiOsPrintf ("Invalid private resource number\n");
                 return;
             }
-            for (i = 0; i < PpttProcessor->NumberOfPrivResources; i++)
+            for (i = 0; i < NumPrivRes; i++)
             {
-                Status = AcpiDmDumpTable (Table->Length, Offset + SubtableOffset,
+                Status = AcpiDmDumpTable (TableLength, Offset + SubtableOffset,
                     ACPI_ADD_PTR (ACPI_SUBTABLE_HEADER, Subtable, SubtableOffset),
                     4, AcpiDmTableInfoPptt0a);
                 if (ACPI_FAILURE (Status))
Index: acpica-unix2-20211217/source/compiler/dttable2.c
===================================================================
--- acpica-unix2-20211217.orig/source/compiler/dttable2.c
+++ acpica-unix2-20211217/source/compiler/dttable2.c
@@ -1507,6 +1507,7 @@ DtCompilePptt (
     DT_FIELD                **PFieldList = (DT_FIELD **) List;
     DT_FIELD                *SubtableStart;
     ACPI_TABLE_HEADER       *PpttAcpiHeader;
+    UINT32                  NumPrivRes;
 
 
     ParentTable = DtPeekSubtable ();
@@ -1571,7 +1572,7 @@ DtCompilePptt (
             {
                 /* Compile initiator proximity domain list */
 
-                PpttProcessor->NumberOfPrivResources = 0;
+                NumPrivRes = 0;
                 while (*PFieldList)
                 {
                     Status = DtCompileTable (PFieldList,
@@ -1587,8 +1588,10 @@ DtCompilePptt (
 
                     DtInsertSubtable (ParentTable, Subtable);
                     PpttHeader->Length += (UINT8)(Subtable->Length);
-                    PpttProcessor->NumberOfPrivResources++;
+                    NumPrivRes++;
                 }
+                PpttProcessor->NumberOfPrivResources =
+                        AcpiUtReadUint32 (&NumPrivRes);
             }
             break;