From: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
To: Bharata B Rao <bharata@linux.vnet.ibm.com>, qemu-devel@nongnu.org
Cc: imammedo@redhat.com, mdroth@linux.vnet.ibm.com,
Nathan Fontenot <nfont@linux.vnet.ibm.com>,
agraf@suse.de
Subject: Re: [Qemu-devel] [RFC PATCH v1 00/13] CPU and Memory hotplug for PowerPC guests
Date: Thu, 29 Jan 2015 14:14:48 -0800 [thread overview]
Message-ID: <54CAB0D8.4010405@linux.vnet.ibm.com> (raw)
In-Reply-To: <1420697420-16053-1-git-send-email-bharata@linux.vnet.ibm.com>
On 01/07/2015 10:10 PM, Bharata B Rao wrote:
> This patchset enables CPU and memory hotplug support for PowerPC guests.
I missed seeing this as the qemu-ppc list was not included. Can you
please add myself and Nathan on Cc in the future as well.
Tyrel
>
> Changes in this patchset (v1):
>
> - Based on top of Michael Roth's tree
> (https://github.com/mdroth/qemu/commits/spapr-hotplug-core) which serves
> as base for his PCI hotplug patches too.
> - Switched to device_add/del semantics instead of cpu-add.
> - Supporting CPU hot unplug now.
> - Added patches to enable memory hotplug.
> - Added ibm,dynamic-reconfiguration-memory support which is needed for
> memory hotplug.
>
> v0 - http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg00752.html
>
> CPU hotplug
> -----------
> - Works with BE guest, has issues with LE guest. Has been tested on BE host
> only.
> - Adding a core (and all its threads) in response to device_add command.
> Similarly removing a core via device_del will remove all the threads.
> - Using Gu Zheng's "reclaim vCPU objects" patch to remove and reuse
> the vCPU objects after CPUs removal.
> (Gu Zheng's original patch:
> http://lists.gnu.org/archive/html/qemu-devel/2014-12/msg01829.html)
>
> Memory hotplug
> --------------
> - Able to get an LMB added with the current patchset, but there are issues
> which I am still debugging.
> - Re-using pc-dimm infrastructure (hw/mem/pc-dimm.c) to support memory
> hotplug on PowerPC.
> - Tested with Nathan Fontenot's memory hotplug kernel patches (with additions
> to drive memory hotplug from EPOW interrupt path)
> (https://www.marc.info/?l=linuxppc-embedded&m=141626066317143&w=2)
>
> Bharata B Rao (11):
> spapr: Add DRC dt entries for CPUs
> spapr: Consider max_cpus during xics initialization
> spapr: Factor out CPU initialization code into realizefn
> spapr: Support ibm,lrdr-capacity device tree property
> spapr: CPU hotplug support
> spapr: Start all the threads of CPU core when core is hotplugged
> spapr: Enable CPU hotplug for POWER8 CPU family
> spapr: CPU hot unplug support
> spapr: Initialize hotplug memory address space
> spapr: Support ibm,dynamic-reconfiguration-memory
> spapr: Memory hotplug support
>
> Gu Zheng (1):
> cpus, spapr: reclaim allocated vCPU objects
>
> Michael Roth (1):
> spapr: enable PHB/CPU/LMB hotplug for pseries-2.3
>
> cpus.c | 44 +++
> default-configs/ppc64-softmmu.mak | 1 +
> hw/ppc/spapr.c | 744 ++++++++++++++++++++++++++++++++++----
> hw/ppc/spapr_events.c | 11 +-
> hw/ppc/spapr_hcall.c | 51 ++-
> hw/ppc/spapr_rtas.c | 28 +-
> include/hw/ppc/spapr.h | 27 +-
> include/qom/cpu.h | 11 +
> include/sysemu/kvm.h | 1 +
> kvm-all.c | 57 ++-
> target-ppc/translate_init.c | 50 ++-
> 11 files changed, 918 insertions(+), 107 deletions(-)
>
prev parent reply other threads:[~2015-01-29 22:15 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-08 6:10 [Qemu-devel] [RFC PATCH v1 00/13] CPU and Memory hotplug for PowerPC guests Bharata B Rao
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 01/13] spapr: enable PHB/CPU/LMB hotplug for pseries-2.3 Bharata B Rao
2015-01-22 21:08 ` Michael Roth
2015-01-29 1:04 ` David Gibson
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 02/13] spapr: Add DRC dt entries for CPUs Bharata B Rao
2015-01-22 21:21 ` Michael Roth
2015-01-29 1:04 ` David Gibson
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 03/13] spapr: Consider max_cpus during xics initialization Bharata B Rao
2015-01-29 1:05 ` David Gibson
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 04/13] spapr: Factor out CPU initialization code into realizefn Bharata B Rao
2015-01-29 1:07 ` David Gibson
2015-01-30 7:49 ` Bharata B Rao
2015-02-23 7:36 ` Bharata B Rao
2015-02-23 15:19 ` Alexander Graf
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 05/13] spapr: Support ibm, lrdr-capacity device tree property Bharata B Rao
2015-01-22 21:55 ` Michael Roth
2015-01-30 8:51 ` Bharata B Rao
2015-01-29 1:16 ` David Gibson
2015-01-30 7:50 ` Bharata B Rao
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 06/13] spapr: CPU hotplug support Bharata B Rao
2015-01-22 22:16 ` Michael Roth
2015-01-28 4:19 ` Bharata B Rao
2015-01-28 5:41 ` Michael Roth
2015-01-23 12:41 ` Igor Mammedov
2015-01-30 6:59 ` Bharata B Rao
2015-01-29 1:31 ` David Gibson
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 07/13] spapr: Start all the threads of CPU core when core is hotplugged Bharata B Rao
2015-01-29 1:36 ` David Gibson
2015-01-30 8:12 ` Bharata B Rao
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 08/13] spapr: Enable CPU hotplug for POWER8 CPU family Bharata B Rao
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 09/13] spapr: CPU hot unplug support Bharata B Rao
2015-01-29 1:39 ` David Gibson
2015-01-30 8:15 ` Bharata B Rao
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 10/13] cpus, spapr: reclaim allocated vCPU objects Bharata B Rao
2015-01-29 1:48 ` David Gibson
2015-01-30 8:23 ` Bharata B Rao
2015-01-31 0:21 ` David Gibson
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 11/13] spapr: Initialize hotplug memory address space Bharata B Rao
2015-02-12 5:19 ` David Gibson
2015-02-12 5:39 ` Bharata B Rao
2015-02-16 4:56 ` David Gibson
2015-02-17 4:00 ` Bharata B Rao
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 12/13] spapr: Support ibm, dynamic-reconfiguration-memory Bharata B Rao
2015-02-12 6:02 ` David Gibson
2015-01-08 6:10 ` [Qemu-devel] [RFC PATCH v1 13/13] spapr: Memory hotplug support Bharata B Rao
2015-02-24 6:26 ` David Gibson
2015-02-24 8:12 ` Bharata B Rao
2015-01-29 17:46 ` [Qemu-devel] [RFC PATCH v1 00/13] CPU and Memory hotplug for PowerPC guests Andreas Färber
2015-02-02 9:00 ` Bharata B Rao
2015-01-29 22:14 ` Tyrel Datwyler [this message]
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