From: Nathan Fontenot <nfont@austin.ibm.com>
To: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@ozlabs.org, lkml@vger.kernel.org
Subject: Re: [PATCH 0/3] Kernel handling of Dynamic Logical Partitioning
Date: Wed, 25 Nov 2009 01:07:17 -0600 [thread overview]
Message-ID: <4B0CD7A5.6040203@austin.ibm.com> (raw)
In-Reply-To: <19212.41144.253618.357013@cargo.ozlabs.ibm.com>
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
prev parent reply other threads:[~2009-11-25 7:07 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-25 1:41 [PATCH 0/3] Kernel handling of Dynamic Logical Partitioning Nathan Fontenot
2009-11-25 1:48 ` [PATCH 1/3] Kernel DLPAR infrastructure Nathan Fontenot
2009-11-25 2:15 ` Michael Neuling
2009-11-25 3:03 ` Michael Neuling
2009-11-25 3:16 ` Paul Mackerras
2009-11-25 1:49 ` [PATCH 2/3] sysfs cpu probe/release files Nathan Fontenot
2009-11-25 3:20 ` Paul Mackerras
2009-11-25 1:53 ` [PATCH 3/3] CPU DLPAR handling Nathan Fontenot
2009-11-25 3:22 ` Paul Mackerras
2009-11-25 3:12 ` [PATCH 0/3] Kernel handling of Dynamic Logical Partitioning Paul Mackerras
2009-11-25 7:07 ` Nathan Fontenot [this message]
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