[PATCH 0/3] Kernel handling of Dynamic Logical Partitioning

Paul Mackerras paulus at samba.org
Wed Nov 25 14:12:56 EST 2009


Nathan Fontenot writes:

> 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 cpus (other DLPAR'able items 
> to follow in future patches).  The framework for this is to create a set of 
> probe/release sysfs files that will facilitate arch-specific call-outs to 
> handle addition and removal of cpus to the system.

Nice explanation, but the 0/3 of the series doesn't go into git.
Could you rework some/all of this into the commit message for patch
1/3 so it gets stored permanently with these patches in git?

Thanks,
Paul.


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