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From: Geoff Levand <geoffrey.levand@am.sony.com>
To: Nathan Lynch <ntl@pobox.com>
Cc: linuxppc-dev@ozlabs.org, Badari Pulavarty <pbadari@us.ibm.com>
Subject: Re: [PATCH 0/3] hotplug memory remove updates
Date: Thu, 28 Feb 2008 18:19:38 -0800	[thread overview]
Message-ID: <47C76BBA.5000503@am.sony.com> (raw)
In-Reply-To: <20080229013957.GQ16241@localdomain>

Hi.

Nathan Lynch wrote:
> Badari Pulavarty wrote:
>> Hi Paul,
>> 
>> Here are the hotplug memory remove updates for 2.6.25-rc2-mm1.
> 
> How have these been tested?  Have you initiated a memory remove
> operation from the HMC?  That's the only way to catch some bugs...

I'm wondering how the memory hot un-plug is initiated on the pseries.
Could you tell me about this HMC?  Is it an application running in
the lpar, or is it an external entity?

Is there a 'standard' interface from userspace that can be used to
trigger the hot-unplug sequence?  I'm asking because PS3's lv1
hypervisor supports hot un-plug of memory, but it would need to be
triggered from some kind of management application running in in
userspace.

-Geoff

  reply	other threads:[~2008-02-29  2:19 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-28 16:43 [PATCH 0/3] hotplug memory remove updates Badari Pulavarty
2008-02-28 16:44 ` [PATCH 1/3] ppc64-specific remove htab bolted mapping support Badari Pulavarty
2008-02-28 16:45 ` [PATCH 2/3] generic __remove_pages() support Badari Pulavarty
2008-02-28 16:46 ` [PATCH 3/3] ppc64-specific memory notifier support Badari Pulavarty
2008-02-28 17:20   ` Nathan Lynch
2008-02-28 18:57     ` Badari Pulavarty
2008-02-29  0:11   ` Michael Ellerman
2008-02-29  0:39     ` Nathan Lynch
2008-02-29  1:03       ` Michael Ellerman
2008-02-29 17:47         ` Badari Pulavarty
2008-03-01  2:51           ` Stephen Rothwell
2008-03-01  3:01             ` Badari Pulavarty
2008-03-03  0:49           ` Michael Ellerman
2008-02-29 17:56         ` [RFC] updating lmb.memory information for hot mem add/remove Badari Pulavarty
2008-03-01  1:12           ` Badari Pulavarty
2008-03-01  1:44             ` David Miller
2008-03-01  3:06               ` Badari Pulavarty
2008-02-29  1:39 ` [PATCH 0/3] hotplug memory remove updates Nathan Lynch
2008-02-29  2:19   ` Geoff Levand [this message]
2008-02-29 19:15     ` Nathan Lynch
2008-02-29  4:51   ` Badari Pulavarty

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