From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Message-ID: <19212.41144.253618.357013@cargo.ozlabs.ibm.com> Date: Wed, 25 Nov 2009 14:12:56 +1100 From: Paul Mackerras To: Nathan Fontenot Subject: Re: [PATCH 0/3] Kernel handling of Dynamic Logical Partitioning In-Reply-To: <4B0C8B45.6080804@austin.ibm.com> References: <4B0C8B45.6080804@austin.ibm.com> Cc: linuxppc-dev@ozlabs.org, lkml@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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.