acpica-tools/0014-Support-most-FPDTs-in-a-big-endian-world.patch
Al Stone edb6c78416 Update to upstream 20200925 version
This update also means a major update for all of the big-endian patching
that has been done.  The older mechanism was getting to unwieldy to keep
maintained, and too sensitive to upstream changes.  Hence, redid all of
the old patches, and took the opportunity to make them more amenable to
change over time.  Ultimately, the goal is to have upstream accept these
in some form.

Signed-off-by: Al Stone <ahs3@redhat.com>
2020-10-19 12:24:09 -06:00

86 lines
2.9 KiB
Diff

From f0cba59f1ce62095cb0a0cecdf8d661b77bf2baf Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Tue, 22 Sep 2020 17:51:45 -0600
Subject: [PATCH 14/40] Support most FPDTs in a big-endian world
NB: there is no support for vendor specific records even in
the little-endian version.
Signed-off-by: Al Stone <ahs3@redhat.com>
---
source/common/dmtbdump1.c | 12 +++++++-----
source/compiler/dttable1.c | 4 +++-
2 files changed, 10 insertions(+), 6 deletions(-)
Index: acpica-unix2-20200925/source/common/dmtbdump1.c
===================================================================
--- acpica-unix2-20200925.orig/source/common/dmtbdump1.c
+++ acpica-unix2-20200925/source/common/dmtbdump1.c
@@ -910,9 +910,10 @@ AcpiDmDumpFpdt (
{
ACPI_STATUS Status;
ACPI_FPDT_HEADER *Subtable;
- UINT32 Length = Table->Length;
+ UINT32 TableLength = AcpiUtReadUint32(&Table->Length);
UINT32 Offset = sizeof (ACPI_TABLE_FPDT);
ACPI_DMTABLE_INFO *InfoTable;
+ UINT16 SubtableType;
/* There is no main table (other than the standard ACPI header) */
@@ -920,19 +921,20 @@ AcpiDmDumpFpdt (
/* Subtables */
Subtable = ACPI_ADD_PTR (ACPI_FPDT_HEADER, Table, Offset);
- while (Offset < Table->Length)
+ while (Offset < TableLength)
{
/* Common subtable header */
AcpiOsPrintf ("\n");
- Status = AcpiDmDumpTable (Length, Offset, Subtable,
+ Status = AcpiDmDumpTable (TableLength, Offset, Subtable,
Subtable->Length, AcpiDmTableInfoFpdtHdr);
if (ACPI_FAILURE (Status))
{
return;
}
- switch (Subtable->Type)
+ SubtableType = AcpiUtReadUint16(&Subtable->Type);
+ switch (SubtableType)
{
case ACPI_FPDT_TYPE_BOOT:
@@ -959,7 +961,7 @@ AcpiDmDumpFpdt (
goto NextSubtable;
}
- Status = AcpiDmDumpTable (Length, Offset, Subtable,
+ Status = AcpiDmDumpTable (TableLength, Offset, Subtable,
Subtable->Length, InfoTable);
if (ACPI_FAILURE (Status))
{
Index: acpica-unix2-20200925/source/compiler/dttable1.c
===================================================================
--- acpica-unix2-20200925.orig/source/compiler/dttable1.c
+++ acpica-unix2-20200925/source/compiler/dttable1.c
@@ -1051,6 +1051,7 @@ DtCompileFpdt (
ACPI_DMTABLE_INFO *InfoTable;
DT_FIELD **PFieldList = (DT_FIELD **) List;
DT_FIELD *SubtableStart;
+ UINT16 SubtableType;
while (*PFieldList)
@@ -1069,7 +1070,8 @@ DtCompileFpdt (
FpdtHeader = ACPI_CAST_PTR (ACPI_FPDT_HEADER, Subtable->Buffer);
- switch (FpdtHeader->Type)
+ SubtableType = AcpiUtReadUint16(&FpdtHeader->Type);
+ switch (SubtableType)
{
case ACPI_FPDT_TYPE_BOOT: