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Subject[PATCH v5 0/6] ACPI: Add _OST support for ACPI hotplug
Date

* This version updates the change log in patch 5/6 per the email
discussion below.
http://marc.info/?l=linux-acpi&m=133939897728489&w=2
This patchset has been accepted in -next, and there is no code
change in this version.

This patchset supports ACPI OSPM Status Indication (_OST) method for
ACPI CPU/memory/container hotplug operations and sysfs eject. After
an ACPI hotplug operation has completed, OSPM calls _OST to indicate
the result of the operation to the platform. If a platform does not
support _OST, this patchset has no effect on the platform.

This _OST support is enabled when all relevant ACPI hotplug operations,
such as CPU, memory and container hotplug, are enabled. This assures
consistent behavior among the hotplug operations with regarding the
_OST support.

Some platforms may require the OS to support _OST in order to support
ACPI hotplug operations. For example, if a platform has the management
console where user can request a hotplug operation from, this _OST
support would be required for the management console to show the result
of the hotplug request to user.

The _OST definition can be found in section 6.3.5 of ACPI 5.0 spec.
The HPPF spec below also describes hotplug flows with _OST.

DIG64 Hot-Plug & Partitioning Flow (HPPF) Specification R1.0
http://www.dig64.org/home/DIG64_HPPF_R1_0.pdf

The changes have been tested with simulated _OST methods.

v5:
- Updated change log in patch 5/6.

v4:
- Removed CONFIG_ACPI_HOTPLUG_OST option.

v3:
- Added more descriptions to the change logs.

v2:
- Added CONFIG_ACPI_HOTPLUG_OST option.
- Added _OST support for container hotplug and sysfs eject.
- Reordered patchset to enable _OST support bit of _OSC in the
last patch.

---
Toshi Kani (6):
ACPI: Add an interface to evaluate _OST
ACPI: Add _OST support for sysfs eject
ACPI: Add _OST support for ACPI CPU hotplug
ACPI: Add _OST support for ACPI memory hotplug
ACPI: Add _OST support for ACPI container hotplug
ACPI: Set hotplug _OST support bit to _OSC

drivers/acpi/acpi_memhotplug.c | 43 +++++++++++++++++++++-------
drivers/acpi/bus.c | 4 +++
drivers/acpi/container.c | 43 +++++++++++++++++++----------
drivers/acpi/processor_driver.c | 28 +++++++++++++-----
drivers/acpi/scan.c | 58 +++++++++++++++++++++++++++++++++------
drivers/acpi/utils.c | 42 ++++++++++++++++++++++++++++
include/acpi/acpi_bus.h | 12 +++++++-
include/linux/acpi.h | 40 ++++++++++++++++++++++++++-
8 files changed, 225 insertions(+), 45 deletions(-)



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