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Subject[RFC PATCH v2 0/5] ACPICA / debugger: Add in-kernel AML debugger support
Date
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.
3. upstream the userspace acpidbg to the ACPICA upstream.

Colin Ian King (1):
ACPICA: Debugger: Remove unnecessary status check

Lv Zheng (4):
ACPICA: Debugger: Convert some mechanisms to OSPM specific
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

drivers/acpi/Kconfig | 13 +-
drivers/acpi/Makefile | 1 +
drivers/acpi/acpi_dbg.c | 818 ++++++++++++++++++++++++++++++
drivers/acpi/acpica/acdebug.h | 2 +-
drivers/acpi/acpica/acglobal.h | 5 -
drivers/acpi/acpica/dbinput.c | 100 +---
drivers/acpi/acpica/dbxface.c | 63 +--
drivers/acpi/acpica/utmutex.c | 17 -
drivers/acpi/bus.c | 1 +
drivers/acpi/osl.c | 250 ++++++++-
include/acpi/acpiosxf.h | 18 +-
include/acpi/acpixf.h | 11 +
include/acpi/platform/aclinux.h | 2 +
include/acpi/platform/aclinuxex.h | 9 +
include/linux/acpi.h | 71 +++
tools/power/acpi/Makefile | 16 +-
tools/power/acpi/tools/acpidbg/Makefile | 27 +
tools/power/acpi/tools/acpidbg/acpidbg.c | 438 ++++++++++++++++
18 files changed, 1699 insertions(+), 163 deletions(-)
create mode 100644 drivers/acpi/acpi_dbg.c
create mode 100644 tools/power/acpi/tools/acpidbg/Makefile
create mode 100644 tools/power/acpi/tools/acpidbg/acpidbg.c

--
1.7.10



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