From 03425774d2c19874ad4483ec6b7e13c0146e81f7 Mon Sep 17 00:00:00 2001

From: Al Stone <ahs3@redhat.com>

Date: Fri, 25 Sep 2020 16:56:55 -0600

Subject: [PATCH 25/40] Support HMAT in a big-endian world

Signed-off-by: Al Stone <ahs3@redhat.com>

---

 source/common/dmtbdump1.c  | 70 ++++++++++++++++++++++----------------

 source/compiler/dttable1.c | 24 ++++++++++---

 2 files changed, 59 insertions(+), 35 deletions(-)

Index: acpica-unix2-20200925/source/common/dmtbdump1.c

===================================================================

--- acpica-unix2-20200925.orig/source/common/dmtbdump1.c

+++ acpica-unix2-20200925/source/common/dmtbdump1.c

@@ -1301,37 +1301,45 @@ AcpiDmDumpHmat (

     UINT32                  Length;

     ACPI_DMTABLE_INFO       *InfoTable;

     UINT32                  i, j;

+    UINT32                  TableLength = AcpiUtReadUint32(&Table->Length);

+    UINT16                  HmatStructType;

+    UINT32                  HmatStructLength;

+    UINT32                  InitPDs;

+    UINT32                  TgtPDs;

+    UINT16                  SMBIOSHandles;

     /* Main table */

-    Status = AcpiDmDumpTable (Table->Length, 0, Table, 0, AcpiDmTableInfoHmat);

+    Status = AcpiDmDumpTable (TableLength, 0, Table, 0, AcpiDmTableInfoHmat);

     if (ACPI_FAILURE (Status))

     {

         return;

     }

     Offset = sizeof (ACPI_TABLE_HMAT);

-    while (Offset < Table->Length)

+    while (Offset < TableLength)

     {

         AcpiOsPrintf ("\n");

         /* Dump HMAT structure header */

         HmatStruct = ACPI_ADD_PTR (ACPI_HMAT_STRUCTURE, Table, Offset);

-        if (HmatStruct->Length < sizeof (ACPI_HMAT_STRUCTURE))

+	HmatStructLength = AcpiUtReadUint32(&HmatStruct->Length);

+        if (HmatStructLength < sizeof (ACPI_HMAT_STRUCTURE))

         {

             AcpiOsPrintf ("Invalid HMAT structure length\n");

             return;

         }

-        Status = AcpiDmDumpTable (Table->Length, Offset, HmatStruct,

-            HmatStruct->Length, AcpiDmTableInfoHmatHdr);

+        Status = AcpiDmDumpTable (TableLength, Offset, HmatStruct,

+            HmatStructLength, AcpiDmTableInfoHmatHdr);

         if (ACPI_FAILURE (Status))

         {

             return;

         }

-        switch (HmatStruct->Type)

+	HmatStructType = AcpiUtReadUint16(&HmatStruct->Type);

+        switch (HmatStructType)

         {

         case ACPI_HMAT_TYPE_ADDRESS_RANGE:

@@ -1354,7 +1362,7 @@ AcpiDmDumpHmat (

         default:

             AcpiOsPrintf ("\n**** Unknown HMAT structure type 0x%X\n",

-                HmatStruct->Type);

+                HmatStructType);

             /* Attempt to continue */

@@ -1363,13 +1371,13 @@ AcpiDmDumpHmat (

         /* Dump HMAT structure body */

-        if (HmatStruct->Length < Length)

+        if (HmatStructLength < Length)

         {

             AcpiOsPrintf ("Invalid HMAT structure length\n");

             return;

         }

-        Status = AcpiDmDumpTable (Table->Length, Offset, HmatStruct,

-            HmatStruct->Length, InfoTable);

+        Status = AcpiDmDumpTable (TableLength, Offset, HmatStruct,

+            HmatStructLength, InfoTable);

         if (ACPI_FAILURE (Status))

         {

             return;

@@ -1377,7 +1385,7 @@ AcpiDmDumpHmat (

         /* Dump HMAT structure additionals */

-        switch (HmatStruct->Type)

+        switch (HmatStructType)

         {

         case ACPI_HMAT_TYPE_LOCALITY:

@@ -1386,15 +1394,16 @@ AcpiDmDumpHmat (

             /* Dump initiator proximity domains */

-            if ((UINT32)(HmatStruct->Length - SubtableOffset) <

-                (UINT32)(HmatLocality->NumberOfInitiatorPDs * 4))

+	    InitPDs = AcpiUtReadUint32(&HmatLocality->NumberOfInitiatorPDs);

+            if ((UINT32)(HmatStructLength - SubtableOffset) <

+                (UINT32)(InitPDs * 4))

             {

                 AcpiOsPrintf ("Invalid initiator proximity domain number\n");

                 return;

             }

-            for (i = 0; i < HmatLocality->NumberOfInitiatorPDs; i++)

+            for (i = 0; i < InitPDs; i++)

             {

-                Status = AcpiDmDumpTable (Table->Length, Offset + SubtableOffset,

+                Status = AcpiDmDumpTable (TableLength, Offset + SubtableOffset,

                     ACPI_ADD_PTR (ACPI_HMAT_STRUCTURE, HmatStruct, SubtableOffset),

                     4, AcpiDmTableInfoHmat1a);

                 if (ACPI_FAILURE (Status))

@@ -1407,15 +1416,16 @@ AcpiDmDumpHmat (

             /* Dump target proximity domains */

-            if ((UINT32)(HmatStruct->Length - SubtableOffset) <

-                (UINT32)(HmatLocality->NumberOfTargetPDs * 4))

+	    TgtPDs = AcpiUtReadUint32(&HmatLocality->NumberOfTargetPDs);

+            if ((UINT32)(HmatStructLength - SubtableOffset) <

+                (UINT32)(TgtPDs * 4))

             {

                 AcpiOsPrintf ("Invalid target proximity domain number\n");

                 return;

             }

-            for (i = 0; i < HmatLocality->NumberOfTargetPDs; i++)

+            for (i = 0; i < TgtPDs; i++)

             {

-                Status = AcpiDmDumpTable (Table->Length, Offset + SubtableOffset,

+                Status = AcpiDmDumpTable (TableLength, Offset + SubtableOffset,

                     ACPI_ADD_PTR (ACPI_HMAT_STRUCTURE, HmatStruct, SubtableOffset),

                     4, AcpiDmTableInfoHmat1b);

                 if (ACPI_FAILURE (Status))

@@ -1428,18 +1438,17 @@ AcpiDmDumpHmat (

             /* Dump latency/bandwidth entris */

-            if ((UINT32)(HmatStruct->Length - SubtableOffset) <

-                (UINT32)(HmatLocality->NumberOfInitiatorPDs *

-                         HmatLocality->NumberOfTargetPDs * 2))

+            if ((UINT32)(HmatStructLength - SubtableOffset) <

+                (UINT32)(InitPDs * TgtPDs * 2))

             {

                 AcpiOsPrintf ("Invalid latency/bandwidth entry number\n");

                 return;

             }

-            for (i = 0; i < HmatLocality->NumberOfInitiatorPDs; i++)

+            for (i = 0; i < InitPDs; i++)

             {

-                for (j = 0; j < HmatLocality->NumberOfTargetPDs; j++)

+                for (j = 0; j < TgtPDs; j++)

                 {

-                    Status = AcpiDmDumpTable (Table->Length, Offset + SubtableOffset,

+                    Status = AcpiDmDumpTable (TableLength, Offset + SubtableOffset,

                         ACPI_ADD_PTR (ACPI_HMAT_STRUCTURE, HmatStruct, SubtableOffset),

                         2, AcpiDmTableInfoHmat1c);

                     if (ACPI_FAILURE(Status))

@@ -1459,15 +1468,16 @@ AcpiDmDumpHmat (

             /* Dump SMBIOS handles */

-            if ((UINT32)(HmatStruct->Length - SubtableOffset) <

-                (UINT32)(HmatCache->NumberOfSMBIOSHandles * 2))

+	    SMBIOSHandles = AcpiUtReadUint16(&HmatCache->NumberOfSMBIOSHandles);

+            if ((UINT32)(HmatStructLength - SubtableOffset) <

+                (UINT32)(SMBIOSHandles * 2))

             {

                 AcpiOsPrintf ("Invalid SMBIOS handle number\n");

                 return;

             }

-            for (i = 0; i < HmatCache->NumberOfSMBIOSHandles; i++)

+            for (i = 0; i < SMBIOSHandles; i++)

             {

-                Status = AcpiDmDumpTable (Table->Length, Offset + SubtableOffset,

+                Status = AcpiDmDumpTable (TableLength, Offset + SubtableOffset,

                     ACPI_ADD_PTR (ACPI_HMAT_STRUCTURE, HmatStruct, SubtableOffset),

                     2, AcpiDmTableInfoHmat2a);

                 if (ACPI_FAILURE (Status))

@@ -1487,6 +1497,6 @@ AcpiDmDumpHmat (

 NextSubtable:

         /* Point to next HMAT structure subtable */

-        Offset += (HmatStruct->Length);

+        Offset += (HmatStructLength);

     }

 }

Index: acpica-unix2-20200925/source/compiler/dttable1.c

===================================================================

--- acpica-unix2-20200925.orig/source/compiler/dttable1.c

+++ acpica-unix2-20200925/source/compiler/dttable1.c

@@ -1295,6 +1295,8 @@ DtCompileHmat (

     UINT32                  TgtPDNumber;

     UINT64                  EntryNumber;

     UINT16                  SMBIOSHandleNumber;

+    UINT16                  HmatStructType;

+    UINT32                  Length;

     ParentTable = DtPeekSubtable ();

@@ -1325,7 +1327,8 @@ DtCompileHmat (

         /* Compile HMAT structure body */

-        switch (HmatStruct->Type)

+	HmatStructType = AcpiUtReadUint16(&HmatStruct->Type);

+        switch (HmatStructType)

         {

         case ACPI_HMAT_TYPE_ADDRESS_RANGE:

@@ -1358,7 +1361,7 @@ DtCompileHmat (

         /* Compile HMAT structure additionals */

-        switch (HmatStruct->Type)

+        switch (HmatStructType)

         {

         case ACPI_HMAT_TYPE_LOCALITY:

@@ -1384,7 +1387,7 @@ DtCompileHmat (

                 HmatStruct->Length += Subtable->Length;

                 IntPDNumber++;

             }

-            HmatLocality->NumberOfInitiatorPDs = IntPDNumber;

+            HmatLocality->NumberOfInitiatorPDs = AcpiUtReadUint32(&IntPDNumber);

             /* Compile target proximity domain list */

@@ -1405,7 +1408,7 @@ DtCompileHmat (

                 HmatStruct->Length += Subtable->Length;

                 TgtPDNumber++;

             }

-            HmatLocality->NumberOfTargetPDs = TgtPDNumber;

+            HmatLocality->NumberOfTargetPDs = AcpiUtReadUint32(&TgtPDNumber);

             /* Save start of the entries for reporting errors */

@@ -1430,6 +1433,9 @@ DtCompileHmat (

                 HmatStruct->Length += Subtable->Length;

                 EntryNumber++;

             }

+	    

+	    Length = AcpiUtReadUint32(&HmatStruct->Length);

+	    HmatStruct->Length = Length;

             /* Validate number of entries */

@@ -1464,11 +1470,19 @@ DtCompileHmat (

                 HmatStruct->Length += Subtable->Length;

                 SMBIOSHandleNumber++;

             }

-            HmatCache->NumberOfSMBIOSHandles = SMBIOSHandleNumber;

+            HmatCache->NumberOfSMBIOSHandles = 

+		    AcpiUtReadUint16(&SMBIOSHandleNumber);

+

+	    Length = AcpiUtReadUint32(&HmatStruct->Length);

+	    HmatStruct->Length = Length;

+

             break;

         default:

+	    Length = AcpiUtReadUint32(&HmatStruct->Length);

+	    HmatStruct->Length = Length;

+

             break;

         }

     }