Logfile: Changes for version 20211217

Version 20211217.

1 files changed, 48 insertions, 0 deletions

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+17 December 2021. Summary of changes for version 20211217:
+
+1) ACPICA kernel-resident subsystem:
+
+Hardware: Do not flush CPU cache when entering S4 and S5. According to 
+ACPI 6.4, Section 16.2, the CPU cache flushing is required on entering to 
+S1, S2, and S3, but the ACPICA code flushes the CPU cache regardless of 
+the sleep state. Blind cache flush on entering S5 causes problems for 
+TDX.
+
+Avoid subobject buffer overflow when validating RSDP signature. Since the 
+Signature member is accessed through an ACPI_TABLE_HEADER, the pointer to 
+it is only to a 4-char array, and so trying to read past the 4th 
+character, as will be done when it is an RSDP, reads beyond the bounds of 
+the accessed member. Contributed by jrtc27.
+
+Add support for PCC Opregion special context data. PCC Opregion added in 
+ACPIC 6.3 requires special context data similar to GPIO and Generic 
+Serial Bus as it needs to know the internal PCC buffer and its length as 
+well as the PCC channel index when the opregion handler is being executed 
+by the OSPM. Adds support for the special context data needed by PCC 
+Opregion. Submitted by Sudeep Holla <sudeep.holla@arm.com>
+
+2) iASL Compiler/Disassembler and ACPICA tools:
+
+iASL: Completed compiler support for the NHLT ACPI table.
+
+iASL/NHLT table: Fixed a reported problem where a fault would occur 
+during disassembly of a "Linux-Specific" section if the "Specific Data" 
+part was not present.
+
+iASL: Added full support (compiler and disassembler) for the AGDI ACPI 
+table. Contributed by: Ilkka Koskinen <ilkka@os.amperecomputing.com>.
+
+iASL: Added full support for the TDEL ACPI table.
+
+iASL table compiler: FADT support updates:
+1) Allow the 32-bit DSDT address to be zero.
+2) Issue error if both the 32-bit and 64-bit DSDT addresses are zero.
+
+iASL: Fix unaligned accesses to local cache allocations. Contributed by 
+jrtc27.
+
+iASL: Open binary input files in binary mode, not text mode Affects 
+binary input AML files, as well as binary data table files, for 
+disassembly.
+
+----------------------------------------
 30 September 2021. Summary of changes for version 20210930:
 
 This release is available at https://acpica.org/downloads