29 July 2016. Summary of changes for version 20160729: This release is available at https://acpica.org/downloads 1) ACPICA kernel-resident subsystem: Implemented basic UEFI support for the various ACPICA tools. This includes: 1) An OSL to implement the various AcpiOs* interfaces on UEFI. 2) Support to obtain the ACPI tables on UEFI. 3) Local implementation of required C library functions not available on UEFI. 4) A front-end (main) function for the tools for UEFI-related initialization. The initial deployment of this support is the AcpiDump utility executing as an UEFI application via EDK2 (EDKII, "UEFI Firmware Development Kit"). Current environments supported are Linux/Unix. MSVC generation is not supported at this time. See the generate/efi/README file for build instructions. Lv Zheng. Future plans include porting the AcpiExec utility to execute natively on the platform with I/O and memory access. This will allow viewing/dump of the platform namespace and native execution of ACPI control methods that access the actual hardware. To fully implement this support, the OSL functions below must be implemented with UEFI interfaces. Any community help in the implementation of these functions would be appreciated: AcpiOsReadPort AcpiOsWritePort AcpiOsReadMemory AcpiOsWriteMemory AcpiOsReadPciConfiguration AcpiOsWritePciConfiguration Restructured and standardized the C library configuration for ACPICA, resulting in the various configuration options below. This includes a global restructuring of the compiler-dependent and platform-dependent include files. These changes may affect the existing platform-dependent configuration files on some hosts. Lv Zheng. The current C library configuration options appear below. For any issues, it may be helpful to examine the existing compiler-dependent and platform-dependent files as examples. Lv Zheng. 1) Linux kernel: ACPI_USE_STANDARD_HEADERS=n in order not to use system-provided C library. ACPI_USE_SYSTEM_CLIBRARY=y in order not to use ACPICA mini C library. 2) Unix/Windows/BSD applications: ACPI_USE_STANDARD_HEADERS=y in order to use system-provided C library. ACPI_USE_SYSTEM_CLIBRARY=y in order not to use ACPICA mini C library. 3) UEFI applications: ACPI_USE_STANDARD_HEADERS=n in order not to use system-provided C library. ACPI_USE_SYSTEM_CLIBRARY=n in order to use ACPICA mini C library. 4) UEFI applications (EDK2/StdLib): ACPI_USE_STANDARD_HEADERS=y in order to use EDK2 StdLib C library. ACPI_USE_SYSTEM_CLIBRARY=y in order to use EDK2 StdLib C library. AML interpreter: "module-level code" support. Allows for execution of so-called "executable" AML code (math/logical operations, etc.) outside of control methods not just at the module level (top level) but also within any scope declared outside of a control method - Scope{}, Device{}, Processor{}, PowerResource{}, and ThermalZone{}. Lv Zheng. Simplified the configuration of the "maximum AML loops" global option by adding a global public variable, "AcpiGbl_MaxLoopIterations" which can be modified at runtime. 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: 139.1K Code, 22.9K Data, 162.0K Total Debug Version: 199.0K Code, 81.8K Data, 280.8K Total 2) iASL Compiler/Disassembler and Tools: iASL: Add full support for the RASF ACPI table (RAS Features Table). Includes disassembler, data table compiler, and header support. iASL Expand "module-level code" support. Allows for compilation/disassembly of so-called "executable" AML code (math/logical operations, etc.) outside of control methods not just at the module level (top level) but also within any scope declared outside of a control method - Scope{}, Device{}, Processor{}, PowerResource{}, and ThermalZone{}. AcpiDump: Added support for dumping all SSDTs on newer versions of Windows. These tables are now easily available -- SSDTs are not available through the registry on older versions.