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acpica-tools/0027-Support-SDEV-in-a-big-endian-world.patch
Dean Nelson 976008e29e Update acpica-tools to upstream's 20210604 source tree 
And bring the big-endian patches up-to-date with what has been submitted
upstream by Al Stone <ahs3@redhat.com>. Upstream has yet to accept them.

Resolves: rhbz#1967794

Signed-off-by: Dean Nelson <dnelson@redhat.com>
2021-07-26 11:29:06 -05:00

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From 3d1ac6e76ad0c0d6454671b190ccbbfafb0cb4cc Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Tue, 29 Jun 2021 16:03:36 -0600
Subject: [PATCH 27/45] Support SDEV in a big-endian world
Signed-off-by: Al Stone <ahs3@redhat.com>
---
source/common/dmtbdump2.c | 48 +++++++++++++++++++++-----------------
source/compiler/dttable2.c | 27 ++++++++++++++++++++-
2 files changed, 52 insertions(+), 23 deletions(-)
Index: acpica-unix2-20210604/source/common/dmtbdump2.c
===================================================================
--- acpica-unix2-20210604.orig/source/common/dmtbdump2.c
+++ acpica-unix2-20210604/source/common/dmtbdump2.c
@@ -2125,7 +2125,7 @@ AcpiDmDumpSdev (
ACPI_SDEV_NAMESPACE *Namesp;
ACPI_DMTABLE_INFO *InfoTable;
ACPI_DMTABLE_INFO *SecureComponentInfoTable;
- UINT32 Length = Table->Length;
+ UINT32 TableLength = AcpiUtReadUint32 (&Table->Length);
UINT32 Offset = sizeof (ACPI_TABLE_SDEV);
UINT16 PathOffset;
UINT16 PathLength;
@@ -2133,11 +2133,12 @@ AcpiDmDumpSdev (
UINT16 VendorDataLength;
ACPI_SDEV_SECURE_COMPONENT *SecureComponent = NULL;
UINT32 CurrentOffset = 0;
+ UINT16 SubtableLength;
/* Main table */
- Status = AcpiDmDumpTable (Length, 0, Table, 0, AcpiDmTableInfoSdev);
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0, AcpiDmTableInfoSdev);
if (ACPI_FAILURE (Status))
{
return;
@@ -2146,13 +2147,14 @@ AcpiDmDumpSdev (
/* Subtables */
Subtable = ACPI_ADD_PTR (ACPI_SDEV_HEADER, Table, Offset);
- while (Offset < Table->Length)
+ while (Offset < TableLength)
{
/* Common subtable header */
AcpiOsPrintf ("\n");
- Status = AcpiDmDumpTable (Table->Length, Offset, Subtable,
- Subtable->Length, AcpiDmTableInfoSdevHdr);
+ SubtableLength = AcpiUtReadUint16 (&Subtable->Length);
+ Status = AcpiDmDumpTable (TableLength, Offset, Subtable,
+ SubtableLength, AcpiDmTableInfoSdevHdr);
if (ACPI_FAILURE (Status))
{
return;
@@ -2175,8 +2177,8 @@ AcpiDmDumpSdev (
}
AcpiOsPrintf ("\n");
- Status = AcpiDmDumpTable (Table->Length, 0, Subtable,
- Subtable->Length, InfoTable);
+ Status = AcpiDmDumpTable (TableLength, 0, Subtable,
+ SubtableLength, InfoTable);
if (ACPI_FAILURE (Status))
{
return;
@@ -2235,12 +2237,12 @@ AcpiDmDumpSdev (
/* Dump the PCIe device ID(s) */
Namesp = ACPI_CAST_PTR (ACPI_SDEV_NAMESPACE, Subtable);
- PathOffset = Namesp->DeviceIdOffset;
- PathLength = Namesp->DeviceIdLength;
+ PathOffset = AcpiUtReadUint16 (&Namesp->DeviceIdOffset);
+ PathLength = AcpiUtReadUint16 (&Namesp->DeviceIdLength);
if (PathLength)
{
- Status = AcpiDmDumpTable (Table->Length, CurrentOffset,
+ Status = AcpiDmDumpTable (TableLength, CurrentOffset,
ACPI_ADD_PTR (UINT8, Namesp, PathOffset),
PathLength, AcpiDmTableInfoSdev0a);
if (ACPI_FAILURE (Status))
@@ -2252,14 +2254,14 @@ AcpiDmDumpSdev (
/* Dump the vendor-specific data */
- VendorDataLength =
- Namesp->VendorDataLength;
+ VendorDataLength = AcpiUtReadUint16 (&Namesp->VendorDataLength);
VendorDataOffset =
- Namesp->DeviceIdOffset + Namesp->DeviceIdLength;
+ AcpiUtReadUint16 (&Namesp->DeviceIdOffset) +
+ AcpiUtReadUint16 (&Namesp->DeviceIdLength);
if (VendorDataLength)
{
- Status = AcpiDmDumpTable (Table->Length, 0,
+ Status = AcpiDmDumpTable (TableLength, 0,
ACPI_ADD_PTR (UINT8, Namesp, VendorDataOffset),
VendorDataLength, AcpiDmTableInfoSdev1b);
if (ACPI_FAILURE (Status))
@@ -2274,12 +2276,12 @@ AcpiDmDumpSdev (
/* PCI path substructures */
Pcie = ACPI_CAST_PTR (ACPI_SDEV_PCIE, Subtable);
- PathOffset = Pcie->PathOffset;
- PathLength = Pcie->PathLength;
+ PathOffset = AcpiUtReadUint16 (&Pcie->PathOffset);
+ PathLength = AcpiUtReadUint16 (&Pcie->PathLength);
while (PathLength)
{
- Status = AcpiDmDumpTable (Table->Length,
+ Status = AcpiDmDumpTable (TableLength,
PathOffset + Offset,
ACPI_ADD_PTR (UINT8, Pcie, PathOffset),
sizeof (ACPI_SDEV_PCIE_PATH), AcpiDmTableInfoSdev1a);
@@ -2294,12 +2296,14 @@ AcpiDmDumpSdev (
/* VendorData */
- VendorDataLength = Pcie->VendorDataLength;
- VendorDataOffset = Pcie->PathOffset + Pcie->PathLength;
+ VendorDataLength = AcpiUtReadUint16 (&Pcie->VendorDataLength);
+ VendorDataOffset =
+ AcpiUtReadUint16 (&Pcie->PathOffset) +
+ AcpiUtReadUint16 (&Pcie->PathLength);
if (VendorDataLength)
{
- Status = AcpiDmDumpTable (Table->Length, 0,
+ Status = AcpiDmDumpTable (TableLength, 0,
ACPI_ADD_PTR (UINT8, Pcie, VendorDataOffset),
VendorDataLength, AcpiDmTableInfoSdev1b);
if (ACPI_FAILURE (Status))
@@ -2316,8 +2320,8 @@ AcpiDmDumpSdev (
NextSubtable:
/* Point to next subtable */
- Offset += Subtable->Length;
+ Offset += SubtableLength;
Subtable = ACPI_ADD_PTR (ACPI_SDEV_HEADER, Subtable,
- Subtable->Length);
+ SubtableLength);
}
}
Index: acpica-unix2-20210604/source/compiler/dttable2.c
===================================================================
--- acpica-unix2-20210604.orig/source/compiler/dttable2.c
+++ acpica-unix2-20210604/source/compiler/dttable2.c
@@ -1493,6 +1493,7 @@ DtCompileSdev (
UINT32 EntryCount;
ACPI_SDEV_SECURE_COMPONENT *SecureComponent = NULL;
UINT16 ComponentLength = 0;
+ UINT16 Tmp16;
/* Subtables */
@@ -1514,7 +1515,7 @@ DtCompileSdev (
DtPushSubtable (Subtable);
SdevHeader = ACPI_CAST_PTR (ACPI_SDEV_HEADER, Subtable->Buffer);
- SdevHeader->Length = (UINT8)(sizeof (ACPI_SDEV_HEADER));
+ SdevHeader->Length = (UINT16) (sizeof (ACPI_SDEV_HEADER));
switch (SdevHeader->Type)
{
@@ -1687,6 +1688,18 @@ DtCompileSdev (
}
}
+ /* Make sure everything is now little-endian */
+ Tmp16 = AcpiUtReadUint16 (&SdevHeader->Length);
+ SdevHeader->Length = Tmp16;
+ Tmp16 = AcpiUtReadUint16 (&Namesp->DeviceIdOffset);
+ Namesp->DeviceIdOffset = Tmp16;
+ Tmp16 = AcpiUtReadUint16 (&Namesp->DeviceIdLength);
+ Namesp->DeviceIdLength = Tmp16;
+ Tmp16 = AcpiUtReadUint16 (&Namesp->VendorDataOffset);
+ Namesp->VendorDataOffset = Tmp16;
+ Tmp16 = AcpiUtReadUint16 (&Namesp->VendorDataLength);
+ Namesp->VendorDataLength = Tmp16;
+
break;
case ACPI_SDEV_TYPE_PCIE_ENDPOINT_DEVICE:
@@ -1749,6 +1762,18 @@ DtCompileSdev (
SdevHeader->Length =
sizeof (ACPI_SDEV_PCIE) +
Pcie->PathLength + Pcie->VendorDataLength;
+
+ Tmp16 = AcpiUtReadUint16 (&SdevHeader->Length);
+ SdevHeader->Length = Tmp16;
+ Tmp16 = AcpiUtReadUint16 (&Pcie->PathOffset);
+ Pcie->PathOffset = Tmp16;
+ Tmp16 = AcpiUtReadUint16 (&Pcie->PathLength);
+ Pcie->PathLength = Tmp16;
+ Tmp16 = AcpiUtReadUint16 (&Pcie->VendorDataOffset);
+ Pcie->VendorDataOffset = Tmp16;
+ Tmp16 = AcpiUtReadUint16 (&Pcie->VendorDataLength);
+ Pcie->VendorDataLength = Tmp16;
+
break;
default:
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