On Thursday, December 03, 2015 10:40:00 AM Lv Zheng wrote: > This patchset enables ACPICA debugger for Linux kernel and implements a > userspace utility to access it. > > A. Build the AML debugger > In order to build the kernel support of AML debugger, the following kconfig > items should be enabled: > CONFIG_ACPI_DEBUG=y > CONFIG_ACPI_DEBUGGER=y > CONFIG_DEBUG_FS=y > CONFIG_ACPI_DEBUGGER_USER=m > The userspace tool can be found at tools/power/acpi/tools/acpidbg. To > build this utility, staying in tools folder and type "make acpi". > > B. Load the AML debugger during runtime > In order to use the in-kernel AML debugger, the following command should be > executed using root user: > # modprobe acpi_dbg > # mount -t debugfs none /sys/kernel/debug > # acpidbg > > C. Batch mode > In order to support scripts, the userspace utility also supports single > command batch mode: > # acpidbg -b "help" > # acpidbg -b "tables" > # acpidbg -b "find _LID" > # acpidbg -b "execute \_SB.LID0._LID" > You can find the documentation about the ACPICA debugger commands in: > https://acpica.org/sites/acpica/files/acpica-reference_17.pdf > (The latest document can be found at https://acpica.org/documentation) > And refer to the chapter - ACPICA debugger reference to obtain the full > description of the debugger commands. Note that not all commands are > supported by an in-kernel AML debugger. > > D. Unload the AML debugger during runtime > After terminating all acpidbg instances, the following command can be > executed to remove the AML debugger from kernel: > # rmmod acpi_dbg > > The following tasks are not completed: > 1. .flush() support in the kernel debugger IO driver. > 2. multi-commands batch mode. > > v2: > 1. Fix a help message issue for the userspace acpidbg utility (this is a > typo fix). > 2. Fix a batch mode issue by adding "\n" to the prompt sequence (this was > lost due to too many rebase cycles). > 3. Fix kconfig dependency for an intermediate patch (this is only useful in > case the latter patches are reverted). > 4. Add more accurate runtime debugger stub mechanism and remove old > ACPI_DEBUGGER_EXEC() stub mechanism. > 5. Add x86 acpi_os_readable() support. > > v3: > 1. Remove acpi_os_readable() support from this patchset. It's sent separately. > 2. Delete some deprecated comments. > > v4: > 1. Rebase patch 4/6 because of Kconfig changes. > 2. Include acpi_os_readable() back as no objections, also test result is > positive. > > Chen Yu (1): > ACPI / x86: introduce acpi_os_readable() support > > Colin Ian King (1): > ACPICA: Debugger: Remove unnecessary status check > > Lv Zheng (5): > ACPICA: Debugger: Convert some mechanisms to OSPM specific > ACPICA: Debugger: Fix runtime stub issues of ACPI_DEBUGGER_EXEC using > different stub mechanism > ACPI / debugger: Add IO interface to access debugger functionalities > tools/power/acpi: Add userspace AML interface support > ACPI / debugger: Add module support for ACPI debugger OK, I'm queuing up [1-6/7] for 4.5. The [7/7] needs at least to be looked at by the x86 maintainers. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
