[libvirt] [PATCH] qemu: domain: Use vcpu 'node-id' property and pass it back to qemu

[John Ferlan]

On 06/27/2017 10:27 AM, Peter Krempa wrote:
> vcpu properties gathered from query-hotpluggable cpus need to be passed
> back to qemu. As qemu did not use the node-id property until now and
> libvirt forgot to pass it back properly (it was parsed but not passed
> around) we did not honor this.
> 
> This patch adds node-id to the structures where it was missing and
> passes it around as necessary.
> 
> The test data was generated with a VM with following config:
>     <numa>
>       <cell id='0' cpus='0,2,4,6' memory='512000' unit='KiB'/>
>       <cell id='1' cpus='1,3,5,7' memory='512000' unit='KiB'/>
>     </numa>
> 
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1452053
> ---
>  src/qemu/qemu_command.c                            |  4 +
>  src/qemu/qemu_domain.c                             |  1 +
>  src/qemu/qemu_domain.h                             |  1 +
>  src/qemu/qemu_monitor.c                            |  2 +
>  src/qemu/qemu_monitor.h                            |  1 +
>  ...qemumonitorjson-cpuinfo-x86-node-full-cpus.json | 35 +++++++++
>  ...umonitorjson-cpuinfo-x86-node-full-hotplug.json | 87 ++++++++++++++++++++++
>  .../qemumonitorjson-cpuinfo-x86-node-full.data     | 48 ++++++++++++
>  tests/qemumonitorjsontest.c                        |  3 +
>  9 files changed, 182 insertions(+)
>  create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-x86-node-full-cpus.json
>  create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-x86-node-full-hotplug.json
>  create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-x86-node-full.data
> 

Searching through sources for 'core_id', 'socket_id', and 'thread_id' -
would qemuProcessValidateHotpluggableVcpus need to be adjusted as well?

Reviewed-by: John Ferlan <jferlan at redhat.com>

John

FWIW: Perhaps missed as part of commit '1213f0f8a' the comments to
qemuMonitorJSONProcessHotpluggableCpusReply do not include node-id.