Date: Thu, 30 Jul 2009 12:35:45 -0700 From: "Moore, Robert" <robert.moore@intel.com> To: "Moore, Robert" <robert.moore@intel.com> Subject: ACPICA version 20090730 released Message-ID: <4911F71203A09E4D9981D27F9D83085832C8A751@orsmsx503.amr.corp.intel.com>
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30 July 2009. Summary of changes for version 20090730:
This release is available at www.acpica.org/downloads
The ACPI 4.0 implementation for ACPICA is complete with this release.
1) ACPI CA Core Subsystem:
ACPI 4.0: Added header file support for all new and changed ACPI tables. Co=
mpletely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are new fo=
r ACPI 4.0, but have previously been supported in ACPICA are: CPEP, BERT, E=
INJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT. There=
have been some ACPI 4.0 changes to other existing tables. Split the large =
actbl1.h header into the existing actbl2.h header. ACPICA BZ 774.
ACPI 4.0: Implemented predefined name validation for all new names. There a=
re 31 new names in ACPI 4.0. The predefined validation module was split int=
o two files. The new file is namespace/nsrepair.c. ACPICA BZ 770.
Implemented support for so-called "module-level executable code". This is e=
xecutable AML code that exists outside of any control method and is intende=
d to be executed at table load time. Although illegal since ACPI 2.0, this =
type of code still exists and is apparently still being created. Blocks of =
this code are now detected and executed as intended. Currently, the code bl=
ocks must exist under either an If, Else, or While construct; these are the=
typical cases seen in the field. ACPICA BZ 762. Lin Ming.
Implemented an automatic dynamic repair for predefined names that return ne=
sted Package objects. This applies to predefined names that are defined to =
return a variable-length Package of sub-packages. If the number of sub-pack=
ages is one, BIOS code is occasionally seen that creates a simple single pa=
ckage with no sub-packages. This code attempts to fix the problem by wrappi=
ng a new package object around the existing package. These methods can be r=
epaired: _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, and _TSS. ACPICA BZ 790.
Fixed a regression introduced in 20090625 for the AcpiGetDevices interface.=
The _HID/_CID matching was broken and no longer matched IDs correctly. ACP=
ICA BZ 793.
Fixed a problem with AcpiReset where the reset would silently fail if the r=
egister was one of the protected I/O ports. AcpiReset now bypasses the port=
validation mechanism. This may eventually be driven into the AcpiRead/Writ=
e interfaces.
Fixed a regression related to the recent update of the AcpiRead/Write inter=
faces. A sleep/suspend could fail if the optional PM2 Control register does=
not exist during an attempt to write the Bus Master Arbitration bit. (Howe=
ver, some hosts already delete the code that writes this bit, and the code =
may in fact be obsolete at this date.) ACPICA BZ 799.
Fixed a problem where AcpiTerminate could fault if inadvertently called twi=
ce in succession. ACPICA BZ 795.
Example Code and Data Size: These are the sizes for the OS-independent acpi=
ca.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The debug =
version of the code includes the debug output trace mechanism and has a muc=
h larger code and data size.
Previous Release:
Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total
Debug Version: 160.5K Code, 50.6K Data, 211.1K Total
Current Release:
Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total
Debug Version: 161.6K Code, 50.9K Data, 212.5K Total
2) iASL Compiler/Disassembler and Tools:
ACPI 4.0: Implemented disassembler support for all new ACPI tables and chan=
ges to existing tables. ACPICA BZ 775.
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