214 lines
7.8 KiB
Diff
214 lines
7.8 KiB
Diff
From 0d87ee42adda7837bec3cc0ff86e40c2f2e8dc4f Mon Sep 17 00:00:00 2001
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From: Al Stone <ahs3@redhat.com>
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Date: Fri, 9 Jul 2021 14:52:55 -0600
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Subject: [PATCH 45/45] CSRT: fixed use of optional ResourceInfo
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In a resource sub-sub-table, there may be a ResourceInfo entry. Neither
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the compiler nor disassembler accounted for that possibility properly.
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Signed-off-by: Al Stone <ahs3@redhat.com>
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---
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source/common/dmtbdump1.c | 43 +++++++++++++++++++++-----------------
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source/compiler/dttable1.c | 28 +++++++++++++------------
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2 files changed, 39 insertions(+), 32 deletions(-)
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Index: acpica-unix2-20211217/source/common/dmtbdump1.c
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===================================================================
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--- acpica-unix2-20211217.orig/source/common/dmtbdump1.c
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+++ acpica-unix2-20211217/source/common/dmtbdump1.c
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@@ -591,11 +591,13 @@ AcpiDmDumpCsrt (
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ACPI_CSRT_GROUP *Subtable;
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ACPI_CSRT_SHARED_INFO *SharedInfoTable;
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ACPI_CSRT_DESCRIPTOR *SubSubtable;
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- UINT32 Length = AcpiUtReadUint32 (&Table->Length);
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+ UINT32 TableLength = AcpiUtReadUint32 (&Table->Length);
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UINT32 Offset = sizeof (ACPI_TABLE_CSRT);
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UINT32 SubOffset;
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UINT32 SubSubOffset;
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UINT32 InfoLength;
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+ UINT32 SubtableLength;
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+ UINT32 SubSubtableLength;
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/* The main table only contains the ACPI header, thus already handled */
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@@ -603,13 +605,14 @@ AcpiDmDumpCsrt (
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/* Subtables (Resource Groups) */
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Subtable = ACPI_ADD_PTR (ACPI_CSRT_GROUP, Table, Offset);
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- while (Offset < Length)
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+ while (Offset < TableLength)
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{
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/* Resource group subtable */
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+ SubtableLength = AcpiUtReadUint32 (&Subtable->Length);
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AcpiOsPrintf ("\n");
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- Status = AcpiDmDumpTable (Length, Offset, Subtable,
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- Subtable->Length, AcpiDmTableInfoCsrt0);
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+ Status = AcpiDmDumpTable (TableLength, Offset, Subtable,
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+ SubtableLength, AcpiDmTableInfoCsrt0);
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if (ACPI_FAILURE (Status))
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{
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return;
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@@ -622,26 +625,28 @@ AcpiDmDumpCsrt (
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Offset + SubOffset);
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AcpiOsPrintf ("\n");
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- Status = AcpiDmDumpTable (Length, Offset + SubOffset, SharedInfoTable,
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- sizeof (ACPI_CSRT_SHARED_INFO), AcpiDmTableInfoCsrt1);
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+ Status = AcpiDmDumpTable (TableLength, Offset + SubOffset,
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+ SharedInfoTable, sizeof (ACPI_CSRT_SHARED_INFO),
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+ AcpiDmTableInfoCsrt1);
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if (ACPI_FAILURE (Status))
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{
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return;
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}
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- SubOffset += Subtable->SharedInfoLength;
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+ SubOffset += AcpiUtReadUint32 (&Subtable->SharedInfoLength);
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/* Sub-Subtables (Resource Descriptors) */
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SubSubtable = ACPI_ADD_PTR (ACPI_CSRT_DESCRIPTOR, Table,
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Offset + SubOffset);
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- while ((SubOffset < Subtable->Length) &&
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- ((Offset + SubOffset) < Length))
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+ while ((SubOffset < SubtableLength) &&
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+ ((Offset + SubOffset) < TableLength))
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{
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+ SubSubtableLength = AcpiUtReadUint32 (&SubSubtable->Length);
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AcpiOsPrintf ("\n");
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- Status = AcpiDmDumpTable (Length, Offset + SubOffset, SubSubtable,
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- SubSubtable->Length, AcpiDmTableInfoCsrt2);
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+ Status = AcpiDmDumpTable (TableLength, Offset + SubOffset,
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+ SubSubtable, SubSubtableLength, AcpiDmTableInfoCsrt2);
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if (ACPI_FAILURE (Status))
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{
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return;
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@@ -651,11 +656,12 @@ AcpiDmDumpCsrt (
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/* Resource-specific info buffer */
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- InfoLength = SubSubtable->Length - SubSubOffset;
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+ InfoLength = SubSubtableLength - SubSubOffset;
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if (InfoLength)
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{
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- Status = AcpiDmDumpTable (Length,
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- Offset + SubOffset + SubSubOffset, Table,
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+ Status = AcpiDmDumpTable (TableLength,
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+ Offset + SubOffset + SubSubOffset,
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+ (UINT8 *)SubSubtable + SubSubOffset,
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InfoLength, AcpiDmTableInfoCsrt2a);
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if (ACPI_FAILURE (Status))
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{
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@@ -665,16 +671,15 @@ AcpiDmDumpCsrt (
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/* Point to next sub-subtable */
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- SubOffset += SubSubtable->Length;
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+ SubOffset += SubSubtableLength;
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SubSubtable = ACPI_ADD_PTR (ACPI_CSRT_DESCRIPTOR, SubSubtable,
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- SubSubtable->Length);
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+ SubSubtableLength);
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}
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/* Point to next subtable */
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- Offset += Subtable->Length;
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- Subtable = ACPI_ADD_PTR (ACPI_CSRT_GROUP, Subtable,
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- Subtable->Length);
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+ Offset += SubtableLength;
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+ Subtable = ACPI_ADD_PTR (ACPI_CSRT_GROUP, Subtable, SubtableLength);
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}
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}
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Index: acpica-unix2-20211217/source/compiler/dttable1.c
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===================================================================
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--- acpica-unix2-20211217.orig/source/compiler/dttable1.c
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+++ acpica-unix2-20211217/source/compiler/dttable1.c
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@@ -570,14 +570,16 @@ DtCompileCsrt (
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DT_SUBTABLE *Subtable;
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DT_SUBTABLE *ParentTable;
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DT_FIELD **PFieldList = (DT_FIELD **) List;
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- UINT32 DescriptorCount;
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+ UINT32 DescriptorLength;
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UINT32 GroupLength;
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UINT32 Tmp;
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+ UINT32 Offset;
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/* Subtables (Resource Groups) */
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ParentTable = DtPeekSubtable ();
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+
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while (*PFieldList)
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{
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/* Resource group subtable */
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@@ -592,16 +594,13 @@ DtCompileCsrt (
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/* Compute the number of resource descriptors */
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Tmp = AcpiUtReadUint32 (&(ACPI_CAST_PTR (ACPI_CSRT_GROUP,
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- Subtable->Buffer))->Length);
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+ Subtable->Buffer))->Length);
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GroupLength = Tmp;
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Tmp = AcpiUtReadUint32 (&(ACPI_CAST_PTR (ACPI_CSRT_GROUP,
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- Subtable->Buffer))->SharedInfoLength);
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+ Subtable->Buffer))->SharedInfoLength);
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GroupLength -= Tmp;
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GroupLength -= sizeof (ACPI_CSRT_GROUP);
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- DescriptorCount = (GroupLength /
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- sizeof (ACPI_CSRT_DESCRIPTOR));
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-
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DtInsertSubtable (ParentTable, Subtable);
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DtPushSubtable (Subtable);
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ParentTable = DtPeekSubtable ();
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@@ -616,10 +615,13 @@ DtCompileCsrt (
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}
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DtInsertSubtable (ParentTable, Subtable);
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+ DtPushSubtable (Subtable);
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+ ParentTable = DtPeekSubtable ();
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/* Sub-Subtables (Resource Descriptors) */
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- while (*PFieldList && DescriptorCount)
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+ Offset = 0;
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+ while (*PFieldList && (Offset < GroupLength))
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{
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Status = DtCompileTable (PFieldList, AcpiDmTableInfoCsrt2,
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@@ -628,6 +630,10 @@ DtCompileCsrt (
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{
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return (Status);
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}
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+ DescriptorLength = AcpiUtReadUint32 (
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+ &(ACPI_CAST_PTR (ACPI_CSRT_GROUP,
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+ Subtable->Buffer))->Length);
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+
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DtInsertSubtable (ParentTable, Subtable);
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@@ -637,11 +643,7 @@ DtCompileCsrt (
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{
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Status = DtCompileTable (PFieldList, AcpiDmTableInfoCsrt2a,
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&Subtable);
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- if (ACPI_FAILURE (Status))
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- {
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- return (Status);
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- }
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- if (Subtable)
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+ if (ACPI_SUCCESS (Status) && Subtable)
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{
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DtInsertSubtable (ParentTable, Subtable);
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}
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@@ -649,7 +651,7 @@ DtCompileCsrt (
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DtPopSubtable ();
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ParentTable = DtPeekSubtable ();
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- DescriptorCount--;
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+ Offset += DescriptorLength;
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}
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DtPopSubtable ();
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