Re: [UPDATE] [PATCH v3 1/5] ACPI / processor : add support for ACPI0010 processor container
From: Rafael J. Wysocki
Date: Tue Feb 23 2016 - 18:40:30 EST
On Wednesday, February 17, 2016 11:54:19 AM Sudeep Holla wrote:
> ACPI 6.0 adds support for optional processor container device which may
> contain child objects that are either processor devices or other processor
> containers. This allows representing hierarchical processor topologies.
>
> It is declared using the _HID of ACPI0010. It is an abstract container
> used to represent CPU topology and should not be used to hotplug
> purposes.
>
> If no matching handler is found for a device in acpi_scan_attach_handler,
> acpi_bus_attach does a default enumeration for those devices with valid
> HID in the acpi namespace. This patch adds a scan handler for these ACPI
> processor containers to avoid default that enumeration and ensures the
> platform devices are not created for them.
>
> Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>
> Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
Queued up for 4.6, thanks!
Rafael