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Patch: 0013-Support-FADT-aka-FACP-in-a-big-endian-world.patch
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From 3288b60b3ddc2df4656842d424bfc1e6a51b2ad2 Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Sun, 20 Sep 2020 11:42:21 -0600
Subject: [PATCH 13/40] Support FADT (aka, FACP) in a big-endian world
Signed-off-by: Al Stone <ahs3@redhat.com>
---
source/common/dmtbdump.c | 25 ++++++++++++-----------
source/components/tables/tbfadt.c | 34 +++++++++++++++++++++++--------
2 files changed, 38 insertions(+), 21 deletions(-)
Index: acpica-unix2-20200925/source/common/dmtbdump.c
===================================================================
--- acpica-unix2-20200925.orig/source/common/dmtbdump.c
+++ acpica-unix2-20200925/source/common/dmtbdump.c
@@ -358,11 +358,12 @@ AcpiDmDumpFadt (
ACPI_TABLE_HEADER *Table)
{ACPI_STATUS Status;
+ UINT32 TableLength = AcpiUtReadUint32(&Table->Length);
/* Always dump the minimum FADT revision 1 fields (ACPI 1.0) */
- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0,
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0,
AcpiDmTableInfoFadt1);
if (ACPI_FAILURE (Status))
{@@ -371,10 +372,10 @@ AcpiDmDumpFadt (
/* Check for FADT revision 2 fields (ACPI 1.0B MS extensions) */
- if ((Table->Length > ACPI_FADT_V1_SIZE) &&
- (Table->Length <= ACPI_FADT_V2_SIZE))
+ if ((TableLength > ACPI_FADT_V1_SIZE) &&
+ (TableLength <= ACPI_FADT_V2_SIZE))
{- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0,
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0,
AcpiDmTableInfoFadt2);
if (ACPI_FAILURE (Status))
{@@ -384,9 +385,9 @@ AcpiDmDumpFadt (
/* Check for FADT revision 3/4 fields and up (ACPI 2.0+ extended data) */
- else if (Table->Length > ACPI_FADT_V2_SIZE)
+ else if (TableLength > ACPI_FADT_V2_SIZE)
{- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0,
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0,
AcpiDmTableInfoFadt3);
if (ACPI_FAILURE (Status))
{@@ -395,9 +396,9 @@ AcpiDmDumpFadt (
/* Check for FADT revision 5 fields and up (ACPI 5.0+) */
- if (Table->Length > ACPI_FADT_V3_SIZE)
+ if (TableLength > ACPI_FADT_V3_SIZE)
{- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0,
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0,
AcpiDmTableInfoFadt5);
if (ACPI_FAILURE (Status))
{@@ -407,9 +408,9 @@ AcpiDmDumpFadt (
/* Check for FADT revision 6 fields and up (ACPI 6.0+) */
- if (Table->Length > ACPI_FADT_V3_SIZE)
+ if (TableLength > ACPI_FADT_V3_SIZE)
{- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0,
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0,
AcpiDmTableInfoFadt6);
if (ACPI_FAILURE (Status))
{@@ -420,11 +421,11 @@ AcpiDmDumpFadt (
/* Validate various fields in the FADT, including length */
- AcpiTbCreateLocalFadt (Table, Table->Length);
+ AcpiTbCreateLocalFadt (Table, TableLength);
/* Validate FADT length against the revision */
- AcpiDmValidateFadtLength (Table->Revision, Table->Length);
+ AcpiDmValidateFadtLength (Table->Revision, TableLength);
}
Index: acpica-unix2-20200925/source/components/tables/tbfadt.c
===================================================================
--- acpica-unix2-20200925.orig/source/components/tables/tbfadt.c
+++ acpica-unix2-20200925/source/components/tables/tbfadt.c
@@ -289,7 +289,6 @@ AcpiTbSelectAddress (
UINT32 Address32,
UINT64 Address64)
{-
if (!Address64)
{/* 64-bit address is zero, use 32-bit address */
@@ -520,6 +519,9 @@ AcpiTbConvertFadt (
UINT8 Length;
UINT8 Flags;
UINT32 i;
+ UINT32 Tmp;
+ UINT32 Value32;
+ UINT64 Value64;
/*
@@ -533,7 +535,7 @@ AcpiTbConvertFadt (
* Note: The FADT revision value is unreliable. Only the length can be
* trusted.
*/
- if (AcpiGbl_FADT.Header.Length <= ACPI_FADT_V2_SIZE)
+ if (AcpiUtReadUint32(&AcpiGbl_FADT.Header.Length) <= ACPI_FADT_V2_SIZE)
{AcpiGbl_FADT.PreferredProfile = 0;
AcpiGbl_FADT.PstateControl = 0;
@@ -546,14 +548,19 @@ AcpiTbConvertFadt (
* current FADT version as defined by the ACPI specification.
* Thus, we will have a common FADT internally.
*/
- AcpiGbl_FADT.Header.Length = sizeof (ACPI_TABLE_FADT);
+ Tmp = sizeof (ACPI_TABLE_FADT);
+ AcpiUtWriteUint(&AcpiGbl_FADT.Header.Length, sizeof(UINT32),
+ &Tmp, sizeof(UINT32));
/*
* Expand the 32-bit DSDT addresses to 64-bit as necessary.
* Later ACPICA code will always use the X 64-bit field.
*/
- AcpiGbl_FADT.XDsdt = AcpiTbSelectAddress ("DSDT",- AcpiGbl_FADT.Dsdt, AcpiGbl_FADT.XDsdt);
+ Value32 = AcpiUtReadUint32(&AcpiGbl_FADT.Dsdt);
+ Value64 = AcpiUtReadUint64(&AcpiGbl_FADT.XDsdt);
+ Value64 = AcpiTbSelectAddress ("DSDT", Value32, Value64);+ AcpiUtWriteUint(&AcpiGbl_FADT.XDsdt, sizeof(UINT64),
+ &Value64, sizeof(UINT64));
/* If Hardware Reduced flag is set, we are all done */
@@ -614,7 +621,11 @@ AcpiTbConvertFadt (
{if (Address64->Address)
{- if (Address64->Address != (UINT64) Address32)
+ Value32 = AcpiUtReadUint32(&Address32);
+ Value64 = AcpiUtReadUint64(&Address64->Address);
+
+ /* if (Address64->Address != (UINT64) Address32) */
+ if (Value64 != (UINT64) Value32)
{/* Address mismatch */
@@ -655,9 +666,10 @@ AcpiTbConvertFadt (
*/
if (!Address64->Address || AcpiGbl_Use32BitFadtAddresses)
{+ Value32 = AcpiUtReadUint32(&Address32);
AcpiTbInitGenericAddress (Address64,
ACPI_ADR_SPACE_SYSTEM_IO, Length,
- (UINT64) Address32, Name, Flags);
+ (UINT64) Value32, Name, Flags);
}
}
@@ -780,10 +792,14 @@ AcpiTbSetupFadtRegisters (
if (Source64->Address)
{+ UINT64 Address64;
+
+ Address64 = AcpiUtReadUint64(&Source64->Address);
+ Address64 +=
+ (FadtPmInfoTable[i].RegisterNum * Pm1RegisterByteWidth);
AcpiTbInitGenericAddress (FadtPmInfoTable[i].Target,
Source64->SpaceId, Pm1RegisterByteWidth,
- Source64->Address +
- (FadtPmInfoTable[i].RegisterNum * Pm1RegisterByteWidth),
+ Address64,
"PmRegisters", 0);
}
}