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Re: [Qemu-ppc] [PATCH v4 0/9] Core based CPU hotplug for PowerPC sPAPR
From: |
David Gibson |
Subject: |
Re: [Qemu-ppc] [PATCH v4 0/9] Core based CPU hotplug for PowerPC sPAPR |
Date: |
Fri, 10 Jun 2016 15:14:14 +1000 |
User-agent: |
Mutt/1.6.1 (2016-04-27) |
On Fri, Jun 10, 2016 at 06:28:59AM +0530, Bharata B Rao wrote:
> Hi,
>
> This is the next version of the CPU hotplug patchset for PowerPC
> sPAPR target. The hotplug semantics looks like this:
>
> (qemu) device_add POWER8E-spapr-cpu-core,id=core2,core-id=16[,threads=4]
> (qemu) device_add host-spapr-cpu-core,id=core2,core-id=16[,threads=4]
> (qemu) device_add
> POWER8E_v2.1-spapr-cpu-core,id=core2,core-id=16[,threads=4]
I've merged these to my ppc-cpu-hotplug branch, and I'm doing some
testing. It it checks out, I hope to send a pull request.
>
> Changes in v4
> -------------
> - Rebased against David Gibson's ppc-cpu-hotplug and hence dropped those
> patches that are already part of that tree.
> - We were assuming the CPU thread to be always of type PowerPCCPU which
> needn't be true. Hence use actual CPU type's instance_size when
> object_initialize'ing the threads as per David's suggestion. This requires
> us to know the instance_size for a given type for which a new QOM API
> object_type_get_size() has been introduced in this version.
> - Consolidate CPU init related routines in spapr_cpu_core.c. As part of this
> move spapr_cpu_init() and its dependencies to spapr_cpu_core.c.
> - Got rid of the temporary unplug list when removing CPU cores.
> - Folded spapr_cpu_core_create_threads() into spapr_cpu_core_realize() and
> fixed the error path in in spapr_cpu_core_realize().
> - Add support for -cpu host.
>
> TODOs remaining
> ---------------
> - Work on David's suggestion of intializing CPU's ObjectClass in
> class_init rather than instance_init.
> - Use object_initialize_with_type instead of object_initialize when
> creating CPU threads of a core.
> - Use vcpu_dt_id logic when populating core id in
> spapr_query_hotpluggable_cpus().
> - Handle CPU compat properly (-cpu host,compat=POWER7)
>
> v3: https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg01829.html
>
> Bharata B Rao (7):
> qom: API to get instance_size of a type
> spapr: Abstract CPU core device and type specific core devices
> spapr: Move spapr_cpu_init() to spapr_cpu_core.c
> spapr: convert boot CPUs into CPU core devices
> spapr: CPU hotplug support
> spapr: CPU hot unplug support
> hmp: Add 'info hotpluggable-cpus' HMP command
>
> Igor Mammedov (2):
> QMP: Add query-hotpluggable-cpus
> spapr: implement query-hotpluggable-cpus callback
>
> hmp-commands-info.hx | 14 ++
> hmp.c | 41 ++++
> hmp.h | 1 +
> hw/ppc/Makefile.objs | 1 +
> hw/ppc/spapr.c | 215 +++++++++++++++------
> hw/ppc/spapr_cpu_core.c | 405
> ++++++++++++++++++++++++++++++++++++++++
> hw/ppc/spapr_events.c | 3 +
> hw/ppc/spapr_rtas.c | 24 +++
> include/hw/boards.h | 5 +
> include/hw/ppc/spapr.h | 7 +
> include/hw/ppc/spapr_cpu_core.h | 36 ++++
> include/qom/object.h | 8 +-
> monitor.c | 13 ++
> qapi-schema.json | 55 ++++++
> qmp-commands.hx | 23 +++
> qom/object.c | 8 +
> target-ppc/kvm.c | 28 +++
> 17 files changed, 828 insertions(+), 59 deletions(-)
> create mode 100644 hw/ppc/spapr_cpu_core.c
> create mode 100644 include/hw/ppc/spapr_cpu_core.h
>
--
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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- Re: [Qemu-ppc] [PATCH v4 2/9] spapr: Abstract CPU core device and type specific core devices, (continued)
- [Qemu-ppc] [PATCH v4 4/9] spapr: convert boot CPUs into CPU core devices, Bharata B Rao, 2016/06/09
- [Qemu-ppc] [PATCH v4 3/9] spapr: Move spapr_cpu_init() to spapr_cpu_core.c, Bharata B Rao, 2016/06/09
- [Qemu-ppc] [PATCH v4 6/9] spapr: CPU hot unplug support, Bharata B Rao, 2016/06/09
- [Qemu-ppc] [PATCH v4 5/9] spapr: CPU hotplug support, Bharata B Rao, 2016/06/09
- [Qemu-ppc] [PATCH v4 8/9] hmp: Add 'info hotpluggable-cpus' HMP command, Bharata B Rao, 2016/06/09
- [Qemu-ppc] [PATCH v4 9/9] spapr: implement query-hotpluggable-cpus callback, Bharata B Rao, 2016/06/09
- [Qemu-ppc] [PATCH v4 7/9] QMP: Add query-hotpluggable-cpus, Bharata B Rao, 2016/06/09
- Re: [Qemu-ppc] [PATCH v4 0/9] Core based CPU hotplug for PowerPC sPAPR,
David Gibson <=