From bd19995fa268ed3e93c071162d0e9c2d35ada0d4 Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Tue, 29 Jun 2021 16:23:30 -0600
Subject: [PATCH 38/45] Support PMTT in a big-endian world

Signed-off-by: Al Stone <ahs3@redhat.com>
---
 source/common/dmtbdump2.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

Index: acpica-unix2-20220331/source/common/dmtbdump2.c
===================================================================
--- acpica-unix2-20220331.orig/source/common/dmtbdump2.c
+++ acpica-unix2-20220331/source/common/dmtbdump2.c
@@ -2142,8 +2142,9 @@ AcpiDmDumpPmtt (
 {
     ACPI_STATUS             Status;
     ACPI_PMTT_HEADER        *Subtable;
-    UINT32                  Length = Table->Length;
+    UINT32                  Length = AcpiUtReadUint32 (&Table->Length);
     UINT32                  Offset = sizeof (ACPI_TABLE_PMTT);
+    UINT16                  SubtableLength;
 
 
     /* Main table */
@@ -2157,17 +2158,18 @@ AcpiDmDumpPmtt (
     /* Subtables */
 
     Subtable = ACPI_ADD_PTR (ACPI_PMTT_HEADER, Table, Offset);
-    while (Offset < Table->Length)
+    while (Offset < Length)
     {
         /* Each of the types below contain the common subtable header */
 
         AcpiOsPrintf ("\n");
+	SubtableLength = AcpiUtReadUint16 (&Subtable->Length);
         switch (Subtable->Type)
         {
         case ACPI_PMTT_TYPE_SOCKET:
 
             Status = AcpiDmDumpTable (Length, Offset, Subtable,
-                Subtable->Length, AcpiDmTableInfoPmtt0);
+                SubtableLength, AcpiDmTableInfoPmtt0);
             if (ACPI_FAILURE (Status))
             {
                 return;
@@ -2176,7 +2178,7 @@ AcpiDmDumpPmtt (
 
         case ACPI_PMTT_TYPE_CONTROLLER:
             Status = AcpiDmDumpTable (Length, Offset, Subtable,
-                Subtable->Length, AcpiDmTableInfoPmtt1);
+                SubtableLength, AcpiDmTableInfoPmtt1);
             if (ACPI_FAILURE (Status))
             {
                 return;
@@ -2185,7 +2187,7 @@ AcpiDmDumpPmtt (
 
        case ACPI_PMTT_TYPE_DIMM:
             Status = AcpiDmDumpTable (Length, Offset, Subtable,
-                Subtable->Length, AcpiDmTableInfoPmtt2);
+                SubtableLength, AcpiDmTableInfoPmtt2);
             if (ACPI_FAILURE (Status))
             {
                 return;
@@ -2194,7 +2196,7 @@ AcpiDmDumpPmtt (
 
         case ACPI_PMTT_TYPE_VENDOR:
             Status = AcpiDmDumpTable (Length, Offset, Subtable,
-                Subtable->Length, AcpiDmTableInfoPmttVendor);
+                SubtableLength, AcpiDmTableInfoPmttVendor);
             if (ACPI_FAILURE (Status))
             {
                 return;
@@ -2210,9 +2212,9 @@ AcpiDmDumpPmtt (
 
         /* Point to next subtable */
 
-        Offset += Subtable->Length;
+        Offset += SubtableLength;
         Subtable = ACPI_ADD_PTR (ACPI_PMTT_HEADER,
-            Subtable, Subtable->Length);
+            Subtable, SubtableLength);
     }
 }