Hi, Rafael > From: Rafael J. Wysocki [mailto:rjw@xxxxxxxxxxxxx] > Sent: Tuesday, December 15, 2015 7:45 AM > > 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. [Lv Zheng] Thanks! > > The [7/7] needs at least to be looked at by the x86 maintainers. [Lv Zheng] OK, we'll re-send this patch to both x86/acpi mailing list with an additional test patch included to make it clearer. Thanks and best regards -Lv ��.n��������+%������w��{.n�����{�����ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f
