Paul Mackerras wrote:
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.
Thanks for all the feedback.
Version two of the patches are on their way based on your comments.
-Nathan Fontenot
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