On Friday, May 08, 2015 04:32:33 PM Sudeep Holla wrote: > > On 08/05/15 15:06, Rafael J. Wysocki wrote: > > On Friday, May 08, 2015 04:50:10 PM Hanjun Guo wrote: > >> Hi Sudeep, > >> > >> On 2015年05月06日 22:31, 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 may also have _CID of > >>> PNP0A05, which represents a generic container device. > >> > >> Container device helps support hotplug of nodes, CPUs, and memory, > >> does this container device ACPI0010 used for the same purpose? > > > > That's correct and the patch isn't. > > > > Thanks Rafael for the clarification. > > Just curious if the firmware adds _CID of PNP0A05 to support OS that > don't parse processor containers, will the current code not create > containers using _CID ? Yes, it will, but you can prevent that from happening by adding a new scan handler just for ACPI0010 (that may just return 1 from its ->attach callback and do nothing else). -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
