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28e5ed7ff9
acpica-tools/wpbt-unicode.patch
Al Stone 28e5ed7ff9 Fix WPBT processing of zero-length argument lists 
Resolves: rhbz#1967794

Signed-off-by: Al Stone <ahs3@redhat.com>
2021-08-04 17:37:53 -05:00

197 lines
7.0 KiB
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Index: acpica-unix2-20210604/source/common/dmtable.c
===================================================================
--- acpica-unix2-20210604.orig/source/common/dmtable.c
+++ acpica-unix2-20210604/source/common/dmtable.c
@@ -979,6 +979,12 @@ AcpiDmDumpTable (
ByteLength = 128;
break;
+ case ACPI_DMT_WPBT_UNICODE:
+
+ ByteLength = SubtableLength;
+ CurrentOffset = sizeof (ACPI_TABLE_WPBT);
+ break;
+
case ACPI_DMT_UNICODE:
case ACPI_DMT_BUFFER:
case ACPI_DMT_RAW_BUFFER:
@@ -1596,6 +1602,7 @@ AcpiDmDumpTable (
break;
case ACPI_DMT_UNICODE:
+ case ACPI_DMT_WPBT_UNICODE:
if (ByteLength == 0)
{
Index: acpica-unix2-20210604/source/common/dmtbdump3.c
===================================================================
--- acpica-unix2-20210604.orig/source/common/dmtbdump3.c
+++ acpica-unix2-20210604/source/common/dmtbdump3.c
@@ -753,8 +753,11 @@ AcpiDmDumpWpbt (
Subtable = ACPI_CAST_PTR (ACPI_TABLE_WPBT, Table);
ArgumentsLength = AcpiUtReadUint16 (&Subtable->ArgumentsLength);
- /* Dump the arguments buffer */
+ /* Dump the arguments buffer if present */
- (void) AcpiDmDumpTable (TableLength, 0, Table, ArgumentsLength,
- AcpiDmTableInfoWpbt0);
+ if (ArgumentsLength)
+ {
+ (void) AcpiDmDumpTable (Table->Length, 0, Table, ArgumentsLength,
+ AcpiDmTableInfoWpbt0);
+ }
}
Index: acpica-unix2-20210604/source/common/dmtbinfo3.c
===================================================================
--- acpica-unix2-20210604.orig/source/common/dmtbinfo3.c
+++ acpica-unix2-20210604/source/common/dmtbinfo3.c
@@ -651,7 +651,7 @@ ACPI_DMTABLE_INFO AcpiDmTableI
ACPI_DMTABLE_INFO AcpiDmTableInfoWpbt0[] =
{
- {ACPI_DMT_UNICODE, sizeof (ACPI_TABLE_WPBT), "Command-line Arguments", 0},
+ {ACPI_DMT_WPBT_UNICODE, ACPI_WPBT2_OFFSET (UnicodeString), "Command-line Arguments", DT_DESCRIBES_OPTIONAL},
ACPI_DMT_TERMINATOR
};
Index: acpica-unix2-20210604/source/compiler/dttable2.c
===================================================================
--- acpica-unix2-20210604.orig/source/compiler/dttable2.c
+++ acpica-unix2-20210604/source/compiler/dttable2.c
@@ -2615,13 +2615,11 @@ DtCompileWpbt (
DT_SUBTABLE *ParentTable;
ACPI_TABLE_WPBT *Table;
ACPI_STATUS Status;
- UINT16 Length;
/* Compile the main table */
- Status = DtCompileTable (PFieldList, AcpiDmTableInfoWpbt,
- &Subtable);
+ Status = DtCompileTable (PFieldList, AcpiDmTableInfoWpbt, &Subtable);
if (ACPI_FAILURE (Status))
{
return (Status);
@@ -2629,11 +2627,23 @@ DtCompileWpbt (
ParentTable = DtPeekSubtable ();
DtInsertSubtable (ParentTable, Subtable);
+ Table = ACPI_CAST_PTR (ACPI_TABLE_WPBT, ParentTable->Buffer);
+
+ /*
+ * Exit now if there are no arguments specified. This is indicated by:
+ * The "Command-line Arguments" field has not been specified (if specified,
+ * it will be the last field in the field list -- after the main table).
+ * Set the Argument Length in the main table to zero.
+ */
+ if (!*PFieldList)
+ {
+ Table->ArgumentsLength = 0;
+ return (AE_OK);
+ }
/* Compile the argument list subtable */
- Status = DtCompileTable (PFieldList, AcpiDmTableInfoWpbt0,
- &Subtable);
+ Status = DtCompileTable (PFieldList, AcpiDmTableInfoWpbt0, &Subtable);
if (ACPI_FAILURE (Status))
{
return (Status);
@@ -2641,12 +2651,8 @@ DtCompileWpbt (
/* Extract the length of the Arguments buffer, insert into main table */
- AcpiUtWriteUint (&Length, sizeof (UINT16),
+ AcpiUtWriteUint (&Table->ArgumentsLength, sizeof (UINT16),
&Subtable->TotalLength, sizeof (UINT32));
- Table = ACPI_CAST_PTR (ACPI_TABLE_WPBT, ParentTable->Buffer);
- Table->ArgumentsLength = AcpiUtReadUint16 (&Length);
-
- ParentTable = DtPeekSubtable ();
DtInsertSubtable (ParentTable, Subtable);
return (AE_OK);
}
Index: acpica-unix2-20210604/source/compiler/dtutils.c
===================================================================
--- acpica-unix2-20210604.orig/source/compiler/dtutils.c
+++ acpica-unix2-20210604/source/compiler/dtutils.c
@@ -344,6 +344,7 @@ DtGetFieldType (
break;
case ACPI_DMT_UNICODE:
+ case ACPI_DMT_WPBT_UNICODE:
Type = DT_FIELD_TYPE_UNICODE;
break;
@@ -626,12 +627,13 @@ DtGetFieldLength (
break;
case ACPI_DMT_UNICODE:
+ case ACPI_DMT_WPBT_UNICODE:
Value = DtGetFieldValue (Field);
/* TBD: error if Value is NULL? (as below?) */
- ByteLength = (strlen (Value) + 1) * sizeof(UINT16);
+ ByteLength = (strlen (Value) + 1) * sizeof (UINT16);
break;
default:
Index: acpica-unix2-20210604/source/include/acdisasm.h
===================================================================
--- acpica-unix2-20210604.orig/source/include/acdisasm.h
+++ acpica-unix2-20210604/source/include/acdisasm.h
@@ -175,6 +175,7 @@ typedef enum
ACPI_DMT_SRAT,
ACPI_DMT_TPM2,
ACPI_DMT_VIOT,
+ ACPI_DMT_WPBT_UNICODE,
/* Special opcodes */
Index: acpica-unix2-20210604/source/include/actbinfo.h
===================================================================
--- acpica-unix2-20210604.orig/source/include/actbinfo.h
+++ acpica-unix2-20210604/source/include/actbinfo.h
@@ -97,6 +97,7 @@
#define ACPI_WDDT_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_TABLE_WDDT,f)
#define ACPI_WDRT_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_TABLE_WDRT,f)
#define ACPI_WPBT_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_TABLE_WPBT,f)
+#define ACPI_WPBT2_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_WPBT_UNICODE,f)
#define ACPI_WSMT_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_TABLE_WSMT,f)
#define ACPI_XENV_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_TABLE_XENV,f)
Index: acpica-unix2-20210604/source/include/actbl3.h
===================================================================
--- acpica-unix2-20210604.orig/source/include/actbl3.h
+++ acpica-unix2-20210604/source/include/actbl3.h
@@ -847,6 +847,12 @@ typedef struct acpi_table_wpbt
} ACPI_TABLE_WPBT;
+typedef struct acpi_wpbt_unicode
+{
+ UINT16 *UnicodeString;
+
+} ACPI_WPBT_UNICODE;
+
/*******************************************************************************
*
Index: acpica-unix2-20210604/source/tools/acpisrc/astable.c
===================================================================
--- acpica-unix2-20210604.orig/source/tools/acpisrc/astable.c
+++ acpica-unix2-20210604/source/tools/acpisrc/astable.c
@@ -772,6 +772,7 @@ ACPI_TYPED_IDENTIFIER_TABLE Ac
{"ACPI_VIOT_VIRTIO_IOMMU_PCI", SRC_TYPE_STRUCT},
{"ACPI_VIOT_VIRTIO_IOMMU_MMIO", SRC_TYPE_STRUCT},
{"ACPI_WDAT_ENTRY", SRC_TYPE_STRUCT},
+ {"ACPI_WPBT_UNICODE", SRC_TYPE_STRUCT},
/* Data Table compiler */
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