From: David Gibson <david@gibson.dropbear.id.au>
To: Eduardo Habkost <ehabkost@redhat.com>
Cc: Bharata B Rao <bharata@linux.vnet.ibm.com>,
qemu-devel@nongnu.org, qemu-ppc@nongnu.org, afaerber@suse.de,
imammedo@redhat.com, armbru@redhat.com, thuth@redhat.com,
aik@ozlabs.ru, agraf@suse.de, pbonzini@redhat.com,
pkrempa@redhat.com, mdroth@linux.vnet.ibm.com, eblake@redhat.com,
mjrosato@linux.vnet.ibm.com, borntraeger@de.ibm.com
Subject: Re: [Qemu-devel] [for-2.7 PATCH v3 06/15] cpu: Abstract CPU core type
Date: Fri, 3 Jun 2016 15:06:28 +1000 [thread overview]
Message-ID: <20160603050627.GH1087@voom.fritz.box> (raw)
In-Reply-To: <20160602181209.GA31052@thinpad.lan.raisama.net>
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On Thu, Jun 02, 2016 at 03:12:09PM -0300, Eduardo Habkost wrote:
> On Thu, Jun 02, 2016 at 01:38:58PM +1000, David Gibson wrote:
> > On Thu, May 12, 2016 at 09:18:16AM +0530, Bharata B Rao wrote:
> > > Add an abstract CPU core type that could be used by machines that want
> > > to define and hotplug CPUs in core granularity.
> > >
> > > Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
> > > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > > [Integer core property]
> > > Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> >
> > Igor, Eduardo,
> >
> > Do you think we're comfortable enough with this abstract core concept
> > to merge it now? If so which tree should it go through?
>
> TBH, I haven't reviewed the concept carefully. I hoped that
> people that spent more time thinking about long-term plans
> (especially Andreas) would help move the discussion forward, but
> Andreas is moving away from QOM CPU.
>
> I need to review the previous discussions more carefully, but the
> concept looks simple enough to me, and I don't think we should
> hold spapr work because we want a Grand Plan for generic CPU
> abstractions to be finished first. If David, Igor, and the people
> working on spapr are happy with it, I trust their judgement.
>
> I just wish the interface was better documented, especially the
> meaning of the "core" and "threads" properties. I would prefer to
> have "core-id" as the property name instead of "core" (most of
> the error messages related to it (in patch 08/15) say "core id").
Ok, I've renamed the properties to 'core-id' and 'nr-threads' as I
merged, which I think is clearer.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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next prev parent reply other threads:[~2016-06-03 5:09 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-12 3:48 [Qemu-devel] [for-2.7 PATCH v3 00/15] Core based CPU hotplug for PowerPC sPAPR Bharata B Rao
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 01/15] exec: Remove cpu from cpus list during cpu_exec_exit() Bharata B Rao
2016-05-26 10:12 ` Paolo Bonzini
2016-05-27 3:07 ` David Gibson
2016-05-27 9:51 ` Paolo Bonzini
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 02/15] exec: Do vmstate unregistration from cpu_exec_exit() Bharata B Rao
2016-05-26 10:22 ` Paolo Bonzini
2016-05-30 15:22 ` [Qemu-devel] [PATCH] fixup! " Igor Mammedov
2016-05-31 0:02 ` David Gibson
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 03/15] cpu: Reclaim vCPU objects Bharata B Rao
2016-05-26 10:19 ` Paolo Bonzini
2016-05-26 10:47 ` Bharata B Rao
[not found] ` <201605261048.u4QAibq4039252@mx0a-001b2d01.pphosted.com>
2016-05-26 10:51 ` Paolo Bonzini
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 04/15] cpu: Add a sync version of cpu_remove() Bharata B Rao
2016-05-26 10:22 ` Paolo Bonzini
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 05/15] qdev: hotplug: Introduce HotplugHandler.pre_plug() callback Bharata B Rao
2016-06-02 1:15 ` David Gibson
2016-06-02 9:32 ` Igor Mammedov
2016-06-03 5:10 ` David Gibson
2016-06-03 9:23 ` Igor Mammedov
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 06/15] cpu: Abstract CPU core type Bharata B Rao
2016-06-02 3:38 ` David Gibson
2016-06-02 9:35 ` Igor Mammedov
2016-06-02 18:12 ` Eduardo Habkost
2016-06-03 5:06 ` David Gibson [this message]
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 07/15] spapr: Abstract CPU core device and type specific core devices Bharata B Rao
2016-06-03 5:25 ` David Gibson
2016-06-08 9:42 ` Bharata B Rao
2016-06-09 0:45 ` David Gibson
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 08/15] spapr: convert boot CPUs into CPU " Bharata B Rao
2016-06-03 5:32 ` David Gibson
2016-06-08 12:23 ` Bharata B Rao
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 09/15] spapr: CPU hotplug support Bharata B Rao
2016-06-03 6:10 ` David Gibson
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 10/15] xics, xics_kvm: Handle CPU unplug correctly Bharata B Rao
2016-06-03 6:14 ` David Gibson
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 11/15] spapr_drc: Prevent detach racing against attach for CPU DR Bharata B Rao
2016-06-03 6:17 ` David Gibson
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 12/15] spapr: CPU hot unplug support Bharata B Rao
2016-06-03 6:27 ` David Gibson
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 13/15] QMP: Add query-hotpluggable-cpus Bharata B Rao
2016-06-06 5:28 ` David Gibson
2016-06-06 8:42 ` Igor Mammedov
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 14/15] hmp: Add 'info hotpluggable-cpus' HMP command Bharata B Rao
2016-06-06 5:29 ` David Gibson
2016-05-12 3:48 ` [Qemu-devel] [for-2.7 PATCH v3 15/15] spapr: implement query-hotpluggable-cpus callback Bharata B Rao
2016-06-06 5:37 ` David Gibson
2016-05-25 6:54 ` [Qemu-devel] [for-2.7 PATCH v3 00/15] Core based CPU hotplug for PowerPC sPAPR Thomas Huth
2016-05-25 16:03 ` Andreas Färber
2016-05-26 6:20 ` David Gibson
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