Re: [PATCH 0/5] kernel handling of dynamic logical partitioning

[Nathan Fontenot <nfont@austin.ibm.com>]

Disregard.  Re-sending with corrections.

-Nathan

Nathan Fontenot wrote:
> The Dynamic Logical Partitioning (DLPAR) capabilities of the powerpc 
> pseries
> platform allows for the addition and removal of resources (i.e. cpus,
> memory, pci devices) from a partition. The removal of a resource involves
> removing the resource's node from the device tree and then returning the
> resource to firmware via the rtas set-indicator call.  To add a 
> resource, it
> is first obtained from firmware via the rtas set-indicator call and then a
> new device tree node is created using the ibm,configure-coinnector rtas 
> call
> and added to the device tree.
> 
> The following set of patches implements the needed infrastructure to 
> have the
> kernel handle the DLPAR addition and removal of memory and cpus (other
> DLPAR'able items to follow in future patches).  The framework for this is
> to create a set of probe/release sysfs files in pseries that will add or
> remove the cpu or memory to the system.
> 
> The majority of the code is powerpc/pseries specific except for PATCH 
> 3/5, so
> I am cc'ing lkml.
> 
> Patches include in this set:
> 1/5 - DLPAR infracstructure for powerpc/pseries platform.
> 2/5 - Move the of_drconf_cell struct to prom.h
> 3/5 - Export the memory sysdev class
> 4/5 - Memory DLPAR handling
> 5/5 - CPU DLPAR handling
> 
> -Nathan Fontenot
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