merge conflicts between 2025-08-07 and 2025-12-12

merge our changes into 20250807

merge conflicts between 2024-08-27 and 2024-12-12

branches: 1.18.6;
we don't have/need limits.h

merge conflicts between 20230628 and 20221020

merge conflicts between acpica-20211217 and acpica-20220331

Merge local changes with acpica-20210331

branches: 1.14.4; 1.14.6;
merge conflicts

merge conflicts

branches: 1.12.2;
Merge conflicts; STA methods and fields are not present anymore.

branches: 1.11.12;
merge conflicts

branches: 1.10.2; 1.10.4;
merge new acpica

merge new acpica

merge conflicts

resolve conflicts.

branches: 1.6.2;
merge conflicts

fix debugging build.

resolve conflicts

branches: 1.3.2; 1.3.4; 1.3.8; 1.3.10; 1.3.20; 1.3.24;
Merge ACPICA 20110211.

Apply our local patches.

branches: 1.1.1;
Initial revision

Update acpica to 2025-12-12 (previous was 2025-08-07)

12 December 2025. Summary of changes for version 20251212:

Major changes:

Update many existing ACPI tables to follow the ACPI 6.6 Specification
changes and/or newly approved ASWG ECRs - multiple contributors

Add a few new ACPI tables: IOVT, SWFT, KEYP - multiple contributors

Add many new UUIDs, Hardware/PnP/ACPI IDs - Armin Wolf and Pawel
Chmielewski

Support a few new special methods (_xxx format) and modify few existing
ones to stay compliant with the latest ACPI Specification changes

Improve existing tools/utilities and fix/clean up some problematic usages
along with patching certain vulnerabilities

Import 20250807 (previous was 20241212)

Import new acpica-2024-12-12; previous one was 2024-08-27

Import acpica-20240827 (previous was acpica-20230628)

branches: 1.1.1.16.6;
Import acpica-20230628 (last was 20221020)

Import acpica-2022-03-31

31 March 2021. Summary of changes for version 20210331:

This release is available at https://acpica.org/downloads, and
includes all ACPI 6.4 support

1) ACPICA kernel-resident subsystem:
ACPI 6.4: iASL: deprecate DDBHandleObj keyword
Always create namespace nodes using AcpiNsCreateNode(). ACPICA is
allocating an object using kmalloc(), but then frees it using
kmem_cache_free(<"Acpi-Namespace" kmem_cache>). This is wrong.
Fixed a race condition in generic serial bus operation region
handler. Fixed by Hans de Goede.

2) iASL Compiler/Disassembler and ACPICA tools:

ACPI 6.4: NFIT: add Location Cookie field
ACPI 6.4: HMAT: add new fields/flags
ACPI 6.4: Add new flags in SRAT
ACPI 6.4: add SDEV secure access components
ACPI 6.4: add Csi2Bus resource template
ACPI 6.4: add support for PHAT table
ACPI 6.4: add support for PMTT table
Add disassembly support for the IVRS table. Compilation of the
table is not yet complete. Fixed a potential infinite loop due to
type mismatch. The for-loop is using a UINT8 counter and comparing
the upper limit against a UINT32 AslGbl_ExpectedMessagesIndex
maximum. In the case where AslGbl_ExpectedMessagesIndex is > 255
the counter i will wrap around to zero and the loop will never
exit. I suspect the AslGbl_ExpectedMessagesIndex is never that
high, but fixing this does future proof the code and cleans up
static analysis warnings.Colin King.

iASL/TableCompiler: update it with IORT table E.b revision changes.
From shamiali2008.
iASL/TableCompiler: Add compilation support for the VIOT table.
Signed-off-by: Jean-Philippe Brucker.
iASL/TableCompiler: Add compilation support for CEDT table.
Also, update the CEDT template.

branches: 1.1.1.13.4; 1.1.1.13.6;

branches: 1.1.1.10.2;

branches: 1.1.1.9.2;

One more time in the right place...

branches: 1.1.1.7.2;
Import acpica-20160930:

branches: 1.1.1.6.2;
22 April 2016. Summary of changes for version 20160422:

1) ACPICA kernel-resident subsystem:

Fixed a regression in the GAS (generic address structure) arbitrary bit
support in AcpiHwRead/AcpiHwWrite. Problem could cause incorrect behavior
and incorrect return values. Lv Zheng. ACPICA BZ 1270.

ACPI 6.0: Added support for new/renamed resource macros. One new argument
was added to each of these macros, and the original name has been
deprecated. The AML disassembler will always disassemble to the new
names. Support for the new macros was added to iASL, disassembler,
resource manager, and the acpihelp utility. ACPICA BZ 1274.

I2cSerialBus -> I2cSerialBusV2
SpiSerialBus -> SpiSerialBusV2
UartSerialBus -> UartSerialBusV2

ACPI 6.0: Added support for a new integer field that was appended to the
package object returned by the _BIX method. This adds iASL compile-time
and AML runtime error checking. ACPICA BZ 1273.

ACPI 6.1: Added support for a new PCCT subtable, "HW-Reduced Comm
Subspace Type2" (Headers, Disassembler, and data table compiler).

Example Code and Data Size: These are the sizes for the OS-independent
acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
debug version of the code includes the debug output trace mechanism and
has a much larger code and data size.

Current Release:
Non-Debug Version: 137.4K Code, 52.6K Data, 190.0K Total
Debug Version: 201.5K Code, 82.2K Data, 283.7K Total
Previous Release:
Non-Debug Version: 137.1K Code, 51.5K Data, 188.6K Total
Debug Version: 201.0K Code, 82.0K Data, 283.0K Total


2) iASL Compiler/Disassembler and Tools:

iASL: Implemented an ASL grammar extension to allow/enable executable
"module-level code" to be created and executed under the various
operators that create new scopes. This type of AML code is already
supported in all known AML interpreters, and the grammar change will
appear in the next version of the ACPI specification. Simplifies the
conditional runtime creation of named objects under these object types:

Device
PowerResource
Processor
Scope
ThermalZone

iASL: Implemented a new ASL extension, a "For" loop macro to add greater
ease-of-use to the ASL language. The syntax is similar to the
corresponding C operator, and is implemented with the existing AML While
opcode -- thus requiring no changes to existing AML interpreters.

For (Initialize, Predicate, Update) {TermList}

Grammar:
ForTerm :=
For (
Initializer // Nothing | TermArg => ComputationalData
Predicate // Nothing | TermArg => ComputationalData
Update // Nothing | TermArg => ComputationalData
) {TermList}


iASL: The _HID/_ADR detection and validation has been enhanced to search
under conditionals in order to allow these objects to be conditionally
created at runtime.

iASL: Fixed several issues with the constant folding feature. The
improvement allows better detection and resolution of statements that can
be folded at compile time. ACPICA BZ 1266.

iASL/Disassembler: Fixed a couple issues with the Else{If{}...}
conversion to the ASL ElseIf operator where incorrect ASL code could be
generated.

iASL/Disassembler: Fixed a problem with the ASL+ code disassembly where
sometimes an extra (and extraneous) set of parentheses were emitted for
some combinations of operators. Although this did not cause any problems
with recompilation of the disassembled code, it made the code more
difficult to read. David Box. ACPICA BZ 1231.

iASL: Changed to ignore the unreferenced detection for predefined names
of resource descriptor elements, when the resource descriptor is
created/defined within a control method.

iASL: Disassembler: Fix a possible fault with externally declared Buffer
objects.

import new acpica:

branches: 1.1.1.2.2;

branches: 1.1.1.1.4; 1.1.1.1.6; 1.1.1.1.10;
import new acpica

merge conflicts between 2025-08-07 and 2025-12-12

merge our changes into 20250807

merge conflicts between 2024-08-27 and 2024-12-12

branches: 1.21.6;
merge conflicts between 20230628 and 20221020

merge conflicts between acpica-20211217 and acpica-20220331

Merge local changes with acpica-20210331

branches: 1.18.2; 1.18.4;
merge conflicts

merge conflicts

merge conflicts

merge conflicts

branches: 1.14.2;
Merge conflicts; STA methods and fields are not present anymore.

branches: 1.13.2;
merge conflicts

merge conflicts

branches: 1.11.2; 1.11.4;
merge new acpica

merge conflicts

resolve conflicts.

branches: 1.8.2;
merge conflicts

resolve conflicts

branches: 1.6.2; 1.6.12; 1.6.16;
More __UNCONST(3).

Merge ACPICA 20110623.

branches: 1.4.2; 1.4.6;
Fix ACPI_DEBUG build.

branches: 1.3.2;
Merge ACPICA 20110211.

Apply our local patches.

branches: 1.1.1;
Initial revision

merge conflicts between 2025-08-07 and 2025-12-12

merge our changes into 20250807

merge conflicts between 2024-08-27 and 2024-12-12

branches: 1.21.6;
merge conflicts between 20230628 and 20221020

merge conflicts between acpica-20211217 and acpica-20220331

Merge local changes with acpica-20210331

branches: 1.18.2;
merge conflicts

branches: 1.17.4;
merge conflicts

merge conflicts

branches: 1.15.2;
Merge conflicts; STA methods and fields are not present anymore.

branches: 1.14.2;
merge conflicts

merge conflicts

merge conflicts

branches: 1.11.2;
Adjust to new acpica

branches: 1.10.2;
merge new acpica

merge conflicts

resolve conflicts.

branches: 1.7.2;
merge conflicts

fix debugging build.

resolve conflicts

branches: 1.4.2; 1.4.12; 1.4.16;
Merge ACPICA 20110623.

branches: 1.3.2; 1.3.4; 1.3.8;
Merge ACPICA 20110211.

Apply our local patches.

branches: 1.1.1;
Initial revision

Update acpica to 2025-12-12 (previous was 2025-08-07)

12 December 2025. Summary of changes for version 20251212:

Major changes:

Update many existing ACPI tables to follow the ACPI 6.6 Specification
changes and/or newly approved ASWG ECRs - multiple contributors

Add a few new ACPI tables: IOVT, SWFT, KEYP - multiple contributors

Add many new UUIDs, Hardware/PnP/ACPI IDs - Armin Wolf and Pawel
Chmielewski

Support a few new special methods (_xxx format) and modify few existing
ones to stay compliant with the latest ACPI Specification changes

Improve existing tools/utilities and fix/clean up some problematic usages
along with patching certain vulnerabilities

Import 20250807 (previous was 20241212)

Import new acpica-2024-12-12; previous one was 2024-08-27

branches: 1.1.1.16.6;
Import acpica-20230628 (last was 20221020)

Import acpica-2022-03-31

31 March 2021. Summary of changes for version 20210331:

This release is available at https://acpica.org/downloads, and
includes all ACPI 6.4 support

1) ACPICA kernel-resident subsystem:
ACPI 6.4: iASL: deprecate DDBHandleObj keyword
Always create namespace nodes using AcpiNsCreateNode(). ACPICA is
allocating an object using kmalloc(), but then frees it using
kmem_cache_free(<"Acpi-Namespace" kmem_cache>). This is wrong.
Fixed a race condition in generic serial bus operation region
handler. Fixed by Hans de Goede.

2) iASL Compiler/Disassembler and ACPICA tools:

ACPI 6.4: NFIT: add Location Cookie field
ACPI 6.4: HMAT: add new fields/flags
ACPI 6.4: Add new flags in SRAT
ACPI 6.4: add SDEV secure access components
ACPI 6.4: add Csi2Bus resource template
ACPI 6.4: add support for PHAT table
ACPI 6.4: add support for PMTT table
Add disassembly support for the IVRS table. Compilation of the
table is not yet complete. Fixed a potential infinite loop due to
type mismatch. The for-loop is using a UINT8 counter and comparing
the upper limit against a UINT32 AslGbl_ExpectedMessagesIndex
maximum. In the case where AslGbl_ExpectedMessagesIndex is > 255
the counter i will wrap around to zero and the loop will never
exit. I suspect the AslGbl_ExpectedMessagesIndex is never that
high, but fixing this does future proof the code and cleans up
static analysis warnings.Colin King.

iASL/TableCompiler: update it with IORT table E.b revision changes.
From shamiali2008.
iASL/TableCompiler: Add compilation support for the VIOT table.
Signed-off-by: Jean-Philippe Brucker.
iASL/TableCompiler: Add compilation support for CEDT table.
Also, update the CEDT template.

branches: 1.1.1.13.4; 1.1.1.13.6;

branches: 1.1.1.10.2;

branches: 1.1.1.9.12;
One more time in the right place...

branches: 1.1.1.8.2;
Import acpica-20160930:

branches: 1.1.1.7.2;
import new acpica:

branches: 1.1.1.4.2;

import new acpica

branches: 1.1.1.2.2; 1.1.1.2.4; 1.1.1.2.8; 1.1.1.2.10; 1.1.1.2.20; 1.1.1.2.24;
Import 20110211.

Reimport ACPICA 20100528 to a new location.

Update acpica to 2025-12-12 (previous was 2025-08-07)

12 December 2025. Summary of changes for version 20251212:

Major changes:

Update many existing ACPI tables to follow the ACPI 6.6 Specification
changes and/or newly approved ASWG ECRs - multiple contributors

Add a few new ACPI tables: IOVT, SWFT, KEYP - multiple contributors

Add many new UUIDs, Hardware/PnP/ACPI IDs - Armin Wolf and Pawel
Chmielewski

Support a few new special methods (_xxx format) and modify few existing
ones to stay compliant with the latest ACPI Specification changes

Improve existing tools/utilities and fix/clean up some problematic usages
along with patching certain vulnerabilities

Import 20250807 (previous was 20241212)

Import new acpica-2024-12-12; previous one was 2024-08-27

branches: 1.1.1.16.6;
Import acpica-20230628 (last was 20221020)

Import acpica-2022-03-31

31 March 2021. Summary of changes for version 20210331:

This release is available at https://acpica.org/downloads, and
includes all ACPI 6.4 support

1) ACPICA kernel-resident subsystem:
ACPI 6.4: iASL: deprecate DDBHandleObj keyword
Always create namespace nodes using AcpiNsCreateNode(). ACPICA is
allocating an object using kmalloc(), but then frees it using
kmem_cache_free(<"Acpi-Namespace" kmem_cache>). This is wrong.
Fixed a race condition in generic serial bus operation region
handler. Fixed by Hans de Goede.

2) iASL Compiler/Disassembler and ACPICA tools:

ACPI 6.4: NFIT: add Location Cookie field
ACPI 6.4: HMAT: add new fields/flags
ACPI 6.4: Add new flags in SRAT
ACPI 6.4: add SDEV secure access components
ACPI 6.4: add Csi2Bus resource template
ACPI 6.4: add support for PHAT table
ACPI 6.4: add support for PMTT table
Add disassembly support for the IVRS table. Compilation of the
table is not yet complete. Fixed a potential infinite loop due to
type mismatch. The for-loop is using a UINT8 counter and comparing
the upper limit against a UINT32 AslGbl_ExpectedMessagesIndex
maximum. In the case where AslGbl_ExpectedMessagesIndex is > 255
the counter i will wrap around to zero and the loop will never
exit. I suspect the AslGbl_ExpectedMessagesIndex is never that
high, but fixing this does future proof the code and cleans up
static analysis warnings.Colin King.

iASL/TableCompiler: update it with IORT table E.b revision changes.
From shamiali2008.
iASL/TableCompiler: Add compilation support for the VIOT table.
Signed-off-by: Jean-Philippe Brucker.
iASL/TableCompiler: Add compilation support for CEDT table.
Also, update the CEDT template.

branches: 1.1.1.13.2; 1.1.1.13.4;
30 April 2020. Summary of changes for version 20200430:


1) ACPICA kernel-resident subsystem:

Cleaned up the coding style of a couple of global variables
(AcpiGbl_NextCmdNum and AcpiProtocolLengths) caught by static analyzers.
AcpiProtocolLengths was made static, and the definition of
AcpiGbl_NextCmdNum was moved to acglobal.h.


2) iASL Compiler/Disassembler and ACPICA tools:

iASL DataTable Compiler: Fixed a segfault on errors that aren't directly
associated with a field.

Disassembler: has been made more resilient so that it will continue to
parse AML even if the AML generates ACPI namespace errors. This enables
iASL to disassemble some AML that may have been compiled using older
versions of iASL that no longer compile with newer versions of iASL.

iASL: Fixed the required parameters for _NIH and _NIG. Previously, there
was a mixup where _NIG required one parameter and _NIH required zero
parameters. This change swaps these parameter requirements. Now it is
required that _NIH must be called with one parameter and _NIG requires
zero parameters.

iASL: Allow use of undefined externals as long as they are protected by
an if (CondRefOf (...)) block when compiling multiple definition blocks.

iASL: Fixed the type override behavior of named objects that are declared
as External. External declarations will no longer override the type of
the actual definition if it already exists.

AcpiNames: Added setargv.obj to the MSVC 2017 link sequence to enable
command line wildcard support on Windows. Note: the AcpiNames utility is
essentially redundant with the AcpiExec utility (using the "namespace"
command) and is therefore deprecated. It will be removed in future
releases of ACPICA.

Disassembler: ignore AE_ALREADY_EXISTS status when parsing create*
operators. The disassembler is intended to emit existing ASL code as-is.
Therefore, error messages emitted during disassembly should be ignored or
handled in a way such that the disassembler can continue to parse the
AML. This change ignores AE_ALREADY_EXISTS errors during the deferred Op
parsing for create operators in order to complete parsing ASL termlists.

iASL DataTable Compiler: IVRS table: fix potentially uninitialized
variable warning. Some compilers catch potential uninitialized variables.
This is done by examining branches of if/else statements. This change
replaces an "else if" with an "else" to fix the uninitialized variable
warning.

branches: 1.1.1.9.2;

branches: 1.1.1.8.12;
One more time in the right place...

branches: 1.1.1.7.2; 1.1.1.7.4;
import new acpica:

branches: 1.1.1.4.2;

import new acpica

branches: 1.1.1.2.2; 1.1.1.2.4; 1.1.1.2.8; 1.1.1.2.10; 1.1.1.2.20; 1.1.1.2.24;
Import 20110211.

Reimport ACPICA 20100528 to a new location.

merge conflicts between 2025-08-07 and 2025-12-12

merge our changes into 20250807

merge conflicts between 2024-08-27 and 2024-12-12

branches: 1.26.6;
merge conflicts between 20230628 and 20221020

merge conflicts between acpica-20211217 and acpica-20220331

Merge local changes with acpica-20210331

branches: 1.23.2;
merge conflicts

Adjust blank line & white space to slightly reduce diff from upstream.
No binary changes.

branches: 1.21.4;
merge conflicts

merge conflicts

merge conflicts

merge conflicts

- merge conflicts
- change default debug level to normal; the evaluation trace is too noisy

merge conflicts

branches: 1.15.2;
Merge conflicts; STA methods and fields are not present anymore.

branches: 1.14.2;
merge conflicts

merge conflicts

branches: 1.12.2;
Adjust to new acpica

branches: 1.11.2;
merge new acpica

merge new acpica

merge conflicts

resolve conflicts.

branches: 1.7.2;
merge conflicts

fix debugging build.

resolve conflicts

branches: 1.4.2; 1.4.12; 1.4.16;
Merge ACPICA 20110623.

branches: 1.3.2; 1.3.4; 1.3.8;
Merge ACPICA 20110211.

Apply our local patches.

branches: 1.1.1;
Initial revision

merge conflicts between 2025-08-07 and 2025-12-12

merge our changes into 20250807

merge conflicts between 2024-08-27 and 2024-12-12

branches: 1.19.6;
merge conflicts between 20230628 and 20221020

merge conflicts between acpica-20211217 and acpica-20220331

Merge local changes with acpica-20210331

branches: 1.16.2;
merge conflicts

branches: 1.15.4;
merge conflicts

merge conflicts

merge conflicts

merge conflicts

merge conflicts

branches: 1.10.2;
Merge conflicts; STA methods and fields are not present anymore.

branches: 1.9.8;
merge conflicts

branches: 1.8.4;
merge conflicts

branches: 1.7.2;
Adjust to new acpica

branches: 1.6.2;
merge new acpica

merge conflicts

resolve conflicts.

branches: 1.3.2;
merge conflicts

fix debugging build.

branches: 1.1.1;
Initial revision

merge conflicts between 2025-08-07 and 2025-12-12

merge our changes into 20250807

merge conflicts between 2024-08-27 and 2024-12-12

Merge conflicts between 20230628 and 20240827

branches: 1.17.6;
merge conflicts between 20230628 and 20221020

merge conflicts between acpica-20211217 and acpica-20220331

Merge local changes with acpica-20210331

branches: 1.14.4; 1.14.6;
merge conflicts

merge conflicts

merge conflicts

merge conflicts

branches: 1.10.2;
merge acpica 20180427

Merge conflicts; STA methods and fields are not present anymore.

branches: 1.8.12;
merge conflicts

branches: 1.7.2; 1.7.4;
merge new acpica

merge new acpica

merge conflicts

resolve conflicts.

branches: 1.3.2;
merge conflicts

fix debugging build.

branches: 1.1.1;
Initial revision

Update acpica to 2025-12-12 (previous was 2025-08-07)

12 December 2025. Summary of changes for version 20251212:

Major changes:

Update many existing ACPI tables to follow the ACPI 6.6 Specification
changes and/or newly approved ASWG ECRs - multiple contributors

Add a few new ACPI tables: IOVT, SWFT, KEYP - multiple contributors

Add many new UUIDs, Hardware/PnP/ACPI IDs - Armin Wolf and Pawel
Chmielewski

Support a few new special methods (_xxx format) and modify few existing
ones to stay compliant with the latest ACPI Specification changes

Improve existing tools/utilities and fix/clean up some problematic usages
along with patching certain vulnerabilities

Import 20250807 (previous was 20241212)

Import new acpica-2024-12-12; previous one was 2024-08-27

branches: 1.1.1.14.6;
Import acpica-20230628 (last was 20221020)

Import acpica-2022-03-31

31 March 2021. Summary of changes for version 20210331:

This release is available at https://acpica.org/downloads, and
includes all ACPI 6.4 support

1) ACPICA kernel-resident subsystem:
ACPI 6.4: iASL: deprecate DDBHandleObj keyword
Always create namespace nodes using AcpiNsCreateNode(). ACPICA is
allocating an object using kmalloc(), but then frees it using
kmem_cache_free(<"Acpi-Namespace" kmem_cache>). This is wrong.
Fixed a race condition in generic serial bus operation region
handler. Fixed by Hans de Goede.

2) iASL Compiler/Disassembler and ACPICA tools:

ACPI 6.4: NFIT: add Location Cookie field
ACPI 6.4: HMAT: add new fields/flags
ACPI 6.4: Add new flags in SRAT
ACPI 6.4: add SDEV secure access components
ACPI 6.4: add Csi2Bus resource template
ACPI 6.4: add support for PHAT table
ACPI 6.4: add support for PMTT table
Add disassembly support for the IVRS table. Compilation of the
table is not yet complete. Fixed a potential infinite loop due to
type mismatch. The for-loop is using a UINT8 counter and comparing
the upper limit against a UINT32 AslGbl_ExpectedMessagesIndex
maximum. In the case where AslGbl_ExpectedMessagesIndex is > 255
the counter i will wrap around to zero and the loop will never
exit. I suspect the AslGbl_ExpectedMessagesIndex is never that
high, but fixing this does future proof the code and cleans up
static analysis warnings.Colin King.

iASL/TableCompiler: update it with IORT table E.b revision changes.
From shamiali2008.
iASL/TableCompiler: Add compilation support for the VIOT table.
Signed-off-by: Jean-Philippe Brucker.
iASL/TableCompiler: Add compilation support for CEDT table.
Also, update the CEDT template.

branches: 1.1.1.11.4; 1.1.1.11.6;

branches: 1.1.1.6.2;

branches: 1.1.1.5.2; 1.1.1.5.4;

One more time in the right place...

branches: 1.1.1.3.2;
27 May 2016. Summary of changes for version 20160527:

This release is available at https://acpica.org/downloads


1) ACPICA kernel-resident subsystem:

Temporarily reverted the new arbitrary bit length/alignment support in
AcpiHwRead/AcpiHwWrite for the Generic Address Structure. There have been
a number of regressions with the new code that need to be fully resolved
and tested before this support can be finally integrated into ACPICA.
Apologies for any inconveniences these issues may have caused.

The ACPI message macros are not configurable (ACPI_MSG_ERROR,
ACPI_MSG_EXCEPTION, ACPI_MSG_WARNING, ACPI_MSG_INFO, ACPI_MSG_BIOS_ERROR,
and ACPI_MSG_BIOS_WARNING). Lv Zheng.

Fixed a couple of GCC warnings associated with the use of the -Wcast-qual
option. Adds a new return macro, return_STR. Junk-uk Kim.

Example Code and Data Size: These are the sizes for the OS-independent
acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
debug version of the code includes the debug output trace mechanism and
has a much larger code and data size.

Current Release:
Non-Debug Version: 136.8K Code, 51.6K Data, 188.4K Total
Debug Version: 201.5K Code, 82.2K Data, 283.7K Total
Previous Release:
Non-Debug Version: 137.4K Code, 52.6K Data, 190.0K Total
Debug Version: 200.9K Code, 82.2K Data, 283.1K Total

branches: 1.1.1.2.2;
import new acpica:

branches: 1.1.1.1.2;

Update acpica to 2025-12-12 (previous was 2025-08-07)

12 December 2025. Summary of changes for version 20251212:

Major changes:

Update many existing ACPI tables to follow the ACPI 6.6 Specification
changes and/or newly approved ASWG ECRs - multiple contributors

Add a few new ACPI tables: IOVT, SWFT, KEYP - multiple contributors

Add many new UUIDs, Hardware/PnP/ACPI IDs - Armin Wolf and Pawel
Chmielewski

Support a few new special methods (_xxx format) and modify few existing
ones to stay compliant with the latest ACPI Specification changes

Improve existing tools/utilities and fix/clean up some problematic usages
along with patching certain vulnerabilities

Import 20250807 (previous was 20241212)

Import new acpica-2024-12-12; previous one was 2024-08-27

branches: 1.1.1.14.6;
Import acpica-20230628 (last was 20221020)

Import acpica-2022-03-31

31 March 2021. Summary of changes for version 20210331:

This release is available at https://acpica.org/downloads, and
includes all ACPI 6.4 support

1) ACPICA kernel-resident subsystem:
ACPI 6.4: iASL: deprecate DDBHandleObj keyword
Always create namespace nodes using AcpiNsCreateNode(). ACPICA is
allocating an object using kmalloc(), but then frees it using
kmem_cache_free(<"Acpi-Namespace" kmem_cache>). This is wrong.
Fixed a race condition in generic serial bus operation region
handler. Fixed by Hans de Goede.

2) iASL Compiler/Disassembler and ACPICA tools:

ACPI 6.4: NFIT: add Location Cookie field
ACPI 6.4: HMAT: add new fields/flags
ACPI 6.4: Add new flags in SRAT
ACPI 6.4: add SDEV secure access components
ACPI 6.4: add Csi2Bus resource template
ACPI 6.4: add support for PHAT table
ACPI 6.4: add support for PMTT table
Add disassembly support for the IVRS table. Compilation of the
table is not yet complete. Fixed a potential infinite loop due to
type mismatch. The for-loop is using a UINT8 counter and comparing
the upper limit against a UINT32 AslGbl_ExpectedMessagesIndex
maximum. In the case where AslGbl_ExpectedMessagesIndex is > 255
the counter i will wrap around to zero and the loop will never
exit. I suspect the AslGbl_ExpectedMessagesIndex is never that
high, but fixing this does future proof the code and cleans up
static analysis warnings.Colin King.

iASL/TableCompiler: update it with IORT table E.b revision changes.
From shamiali2008.
iASL/TableCompiler: Add compilation support for the VIOT table.
Signed-off-by: Jean-Philippe Brucker.
iASL/TableCompiler: Add compilation support for CEDT table.
Also, update the CEDT template.

branches: 1.1.1.11.4; 1.1.1.11.6;

branches: 1.1.1.8.2;

branches: 1.1.1.7.12;
One more time in the right place...

branches: 1.1.1.6.2; 1.1.1.6.4;
import new acpica:

branches: 1.1.1.4.2;

import new acpica

branches: 1.1.1.2.2; 1.1.1.2.4; 1.1.1.2.8; 1.1.1.2.10; 1.1.1.2.20; 1.1.1.2.24;
Import 20110211.

Reimport ACPICA 20100528 to a new location.

merge conflicts between 2025-08-07 and 2025-12-12

merge our changes into 20250807

merge conflicts between 2024-08-27 and 2024-12-12

branches: 1.13.6;
merge conflicts between 20230628 and 20221020

merge conflicts between acpica-20211217 and acpica-20220331

Merge local changes with acpica-20210331

branches: 1.10.4; 1.10.6;
merge conflicts

merge conflicts

branches: 1.8.2;
merge acpica 20180427

Merge conflicts; STA methods and fields are not present anymore.

branches: 1.6.12; 1.6.14;
merge conflicts

branches: 1.5.2; 1.5.4;
merge new acpica

merge conflicts

resolve conflicts.

branches: 1.2.2;
merge conflicts

branches: 1.1.1;
Initial revision

merge conflicts between 2025-08-07 and 2025-12-12

merge our changes into 20250807

merge conflicts between 2024-08-27 and 2024-12-12

branches: 1.17.6;
merge conflicts between 20230628 and 20221020

merge conflicts between acpica-20211217 and acpica-20220331

Merge local changes with acpica-20210331

branches: 1.14.4; 1.14.6;
merge conflicts

merge conflicts

branches: 1.12.2;
Merge conflicts; STA methods and fields are not present anymore.

branches: 1.11.12;
merge conflicts

branches: 1.10.2; 1.10.4;
merge new acpica

merge new acpica

merge conflicts

resolve conflicts.

branches: 1.6.2;
merge conflicts

resolve conflicts

branches: 1.4.2; 1.4.12; 1.4.16;
Merge ACPICA 20110623.

branches: 1.3.2; 1.3.4; 1.3.8;
Merge ACPICA 20110211.

Apply our local patches.

branches: 1.1.1;
Initial revision

Update acpica to 2025-12-12 (previous was 2025-08-07)

12 December 2025. Summary of changes for version 20251212:

Major changes:

Update many existing ACPI tables to follow the ACPI 6.6 Specification
changes and/or newly approved ASWG ECRs - multiple contributors

Add a few new ACPI tables: IOVT, SWFT, KEYP - multiple contributors

Add many new UUIDs, Hardware/PnP/ACPI IDs - Armin Wolf and Pawel
Chmielewski

Support a few new special methods (_xxx format) and modify few existing
ones to stay compliant with the latest ACPI Specification changes

Improve existing tools/utilities and fix/clean up some problematic usages
along with patching certain vulnerabilities

Import 20250807 (previous was 20241212)

Import new acpica-2024-12-12; previous one was 2024-08-27

branches: 1.1.1.19.6;
Import acpica-20230628 (last was 20221020)

Import acpica-2022-03-31

31 March 2021. Summary of changes for version 20210331:

This release is available at https://acpica.org/downloads, and
includes all ACPI 6.4 support

1) ACPICA kernel-resident subsystem:
ACPI 6.4: iASL: deprecate DDBHandleObj keyword
Always create namespace nodes using AcpiNsCreateNode(). ACPICA is
allocating an object using kmalloc(), but then frees it using
kmem_cache_free(<"Acpi-Namespace" kmem_cache>). This is wrong.
Fixed a race condition in generic serial bus operation region
handler. Fixed by Hans de Goede.

2) iASL Compiler/Disassembler and ACPICA tools:

ACPI 6.4: NFIT: add Location Cookie field
ACPI 6.4: HMAT: add new fields/flags
ACPI 6.4: Add new flags in SRAT
ACPI 6.4: add SDEV secure access components
ACPI 6.4: add Csi2Bus resource template
ACPI 6.4: add support for PHAT table
ACPI 6.4: add support for PMTT table
Add disassembly support for the IVRS table. Compilation of the
table is not yet complete. Fixed a potential infinite loop due to
type mismatch. The for-loop is using a UINT8 counter and comparing
the upper limit against a UINT32 AslGbl_ExpectedMessagesIndex
maximum. In the case where AslGbl_ExpectedMessagesIndex is > 255
the counter i will wrap around to zero and the loop will never
exit. I suspect the AslGbl_ExpectedMessagesIndex is never that
high, but fixing this does future proof the code and cleans up
static analysis warnings.Colin King.

iASL/TableCompiler: update it with IORT table E.b revision changes.
From shamiali2008.
iASL/TableCompiler: Add compilation support for the VIOT table.
Signed-off-by: Jean-Philippe Brucker.
iASL/TableCompiler: Add compilation support for CEDT table.
Also, update the CEDT template.

branches: 1.1.1.16.4; 1.1.1.16.6;

13 December 2018. Summary of changes for version 20181213:

1) ACPICA Kernel-resident Subsystem:

Fixed some buffer length issues with the GenericSerialBus, related to two
of the bidirectional protocols: AttribRawProcessBytes and AttribRawBytes,
which are rarely seen in the field. For these, the LEN field of the ASL
buffer is now ignored. Hans de Goede

Implemented a new object evaluation trace mechanism for control methods
and data objects. This includes nested control methods. It is
particularly useful for examining the ACPI execution during system
initialization since the output is relatively terse. The flag below
enables the output of the trace via the ACPI_DEBUG_PRINT_RAW interface:
#define ACPI_LV_EVALUATION 0x00080000

Examples:
Enter evaluation : _SB.PCI0._INI (Method)
Exit evaluation : _SB.PCI0._INI
Enter evaluation : _OSI (Method)
Exit evaluation : _OSI
Enter evaluation : _SB.PCI0.TEST (Method)
Nested method call : _SB.PCI0.NST1
Exit nested method : _SB.PCI0.NST1
Exit evaluation : _SB.PCI0.TEST

Added two recently-defined _OSI strings. See
https://docs.microsoft.com/en-us/windows-hardware/drivers/acpi/winacpi-
osi.
"Windows 2018"
"Windows 2018.2"

Update for buffer-to-string conversions via the ToHexString ASL operator.
A "0x" is now prepended to each of the hex values in the output string.
This provides compatibility with other ACPI implementations. The ACPI
specification is somewhat vague on this issue.
Example output string after conversion:
"0x01,0x02,0x03,0x04,0x05,0x06"

Return a run-time error for TermArg expressions within individual package
elements. Although this is technically supported by the ASL grammar,
other ACPI implementations do not support this either. Also, this fixes a
fault if this type of construct is ever encountered (it never has been).


2) iASL Compiler/Disassembler and Tools:

iASL: Implemented a new compile option (-ww) that will promote individual
warnings and remarks to errors. This is intended to enhance the firmware
build process.

AcpiExec: Implemented a new command-line option (-eo) to support the new
object evaluation trace mechanism described above.

Disassembler: Added support to disassemble OEMx tables as AML/ASL tables
instead of a "unknown table" message.

AcpiHelp: Improved support for the "special" predefined names such as
_Lxx, _Exx, _EJx, _T_x, etc. For these, any legal hex value can now be
used for "xx" and "x".

branches: 1.1.1.12.2;

branches: 1.1.1.11.2;

branches: 1.1.1.9.4;
One more time in the right place...

branches: 1.1.1.8.2; 1.1.1.8.4;
import new acpica:

branches: 1.1.1.5.2;

import new acpica

branches: 1.1.1.3.2; 1.1.1.3.12; 1.1.1.3.16;
Import ACPICA 20110623.

Selected changes since 20110211 include, among other things, fixes to _PRW
parsing, fix to a regression with the Load() operator, improvements in NULL
package element removal, support for "spurious" global lock interrupts,
execution of orphaned _REG methods under acpiec(4), and smaller iasl(8)
improvements.

branches: 1.1.1.2.2; 1.1.1.2.4; 1.1.1.2.8;
Import 20110211.

Reimport ACPICA 20100528 to a new location.