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| author |   Bob Moore <robert.moore@intel.com> | 2014-03-24 14:49:00 +0800 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-03-26 16:25:59 +0100 |
| commit | 22b5afce6a0f29f995b0cce83a5033892dd306d8 (patch) | |
| tree | 5733ad0071177f398108a8932b7d7108bd74c4ca /Documentation/kernel-parameters.txt | |
| parent | ACPICA: Remove global option to serialize all control methods. (diff) | |
| download | linux-dev-22b5afce6a0f29f995b0cce83a5033892dd306d8.tar.xz linux-dev-22b5afce6a0f29f995b0cce83a5033892dd306d8.zip | |
ACPICA: Add auto-serialization support for ill-behaved control methods.
This change adds support to automatically mark a control method as
"serialized" if the method creates any named objects. This will
positively prevent the method from being entered by more than one
thread and thus preventing a possible abort when an attempt is
made to create an object twice.
Implemented by parsing all non-serialize control methods at table
load time.
This feature is disabled by default and this patch also adds a new
Linux kernel parameter "acpi_auto_serialize" to allow this feature
to be turned on for a specific boot.
References: https://bugzilla.kernel.org/show_bug.cgi?id=52191
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 3eae32f34122..a159537ea880 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -229,6 +229,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted. use by PCI Format: <irq>,<irq>... + acpi_auto_serialize [HW,ACPI] + Enable auto-serialization of AML methods + AML control methods that contain the opcodes to create + named objects will be marked as "Serialized" by the + auto-serialization feature. + This feature is disabled by default. + This option allows to turn on the feature. + acpi_no_auto_ssdt [HW,ACPI] Disable automatic loading of SSDT acpica_no_return_repair [HW, ACPI] |