[libvirt] [PATCH 00/27] qemu: add support for modern vcpu hotplug and unplug

[Peter Krempa]

This adds support for vcpu hotplug and unplug using device_add and device_del.

Patches 1 and 2 are already mostly acked.

Peter Krempa (27):
  qemu: monitor: Return structures from qemuMonitorGetCPUInfo
  qemu: monitor: Return struct from qemuMonitor(Text|Json)QueryCPUs
  qemu: caps: Add capability for query-hotpluggable-cpus command
  qemu: Forbid config when topology based cpu count doesn't match the
    config
  qemu: capabilities: Extract availability of new cpu hotplug for
    machine types
  qemu: monitor: Extract QOM path from query-cpus reply
  qemu: monitor: Add support for calling query-hotpluggable-cpus
  qemu: monitor: Add algorithm for combining query-(hotpluggable-)-cpus
    data
  tests: Add test infrastructure for qemuMonitorGetCPUInfo
  tests: cpu-hotplug: Add data for ppc64 platform including hotplug
  tests: cpu-hotplug: Add data for ppc64 out-of-order hotplug
  tests: cpu-hotplug: Add data for ppc64 without threads enabled
  qemu: domain: Extract cpu-hotplug related data
  qemu: domain: Prepare for VCPUs vanishing while libvirt is not running
  qemu: setcpus: Report better errors
  qemu: setcpus: Move NUMA setup code into the block checking live def
  qemu: setvcpus: Extract setting of maximum vcpu count
  util: Extract and rename qemuDomainDelCgroupForThread to
    virCgroupDelThread
  conf: Add XML for individual vCPU hotplug
  qemu: migration: Prepare for non-contiguous vcpu configurations
  qemu: command: Add helper to convert vcpu definition to JSON props
  qemu: process: Copy final vcpu order information into the vcpu
    definition
  qemu: command: Add support for sparse vcpu topologies
  qemu: Use mondern vcpu hotplug approach if possible
  qemu: hotplug: Allow marking unplugged devices by alias
  qemu: hotplug: Add support for VCPU unplug
  RFC: qemu: hotplug: Add DEVICE_(ADDED|DELETED) events for vcpus

 docs/formatdomain.html.in                          |  18 ++
 docs/schemas/domaincommon.rng                      |  25 ++
 src/conf/domain_conf.c                             | 151 ++++++++-
 src/conf/domain_conf.h                             |   6 +
 src/libvirt_private.syms                           |   1 +
 src/qemu/qemu_capabilities.c                       |  31 +-
 src/qemu/qemu_capabilities.h                       |   3 +
 src/qemu/qemu_command.c                            |  50 ++-
 src/qemu/qemu_command.h                            |   3 +
 src/qemu/qemu_domain.c                             | 303 ++++++++++++++----
 src/qemu/qemu_domain.h                             |  19 +-
 src/qemu/qemu_driver.c                             | 354 +++++++++++++--------
 src/qemu/qemu_hotplug.c                            | 134 +++++++-
 src/qemu/qemu_hotplug.h                            |   7 +
 src/qemu/qemu_migration.c                          |  16 +-
 src/qemu/qemu_monitor.c                            | 260 ++++++++++++++-
 src/qemu/qemu_monitor.h                            |  58 +++-
 src/qemu/qemu_monitor_json.c                       | 266 +++++++++++++---
 src/qemu/qemu_monitor_json.h                       |   8 +-
 src/qemu/qemu_monitor_text.c                       |  39 ++-
 src/qemu/qemu_monitor_text.h                       |   3 +-
 src/qemu/qemu_process.c                            | 182 ++++++++++-
 src/util/vircgroup.c                               |  20 ++
 src/util/vircgroup.h                               |   4 +
 .../generic-vcpus-individual.xml                   |  23 ++
 tests/genericxml2xmltest.c                         |   2 +
 tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml   |  55 ++--
 .../qemumonitorjson-cpuinfo-ppc64-basic-cpus.json  |  77 +++++
 ...emumonitorjson-cpuinfo-ppc64-basic-hotplug.json |  27 ++
 .../qemumonitorjson-cpuinfo-ppc64-basic.data       |  40 +++
 ...mumonitorjson-cpuinfo-ppc64-hotplug-1-cpus.json | 149 +++++++++
 ...onitorjson-cpuinfo-ppc64-hotplug-1-hotplug.json |  28 ++
 .../qemumonitorjson-cpuinfo-ppc64-hotplug-1.data   |  51 +++
 ...mumonitorjson-cpuinfo-ppc64-hotplug-2-cpus.json | 221 +++++++++++++
 ...onitorjson-cpuinfo-ppc64-hotplug-2-hotplug.json |  29 ++
 .../qemumonitorjson-cpuinfo-ppc64-hotplug-2.data   |  62 ++++
 ...mumonitorjson-cpuinfo-ppc64-hotplug-3-cpus.json | 149 +++++++++
 ...onitorjson-cpuinfo-ppc64-hotplug-3-hotplug.json |  28 ++
 .../qemumonitorjson-cpuinfo-ppc64-hotplug-3.data   |  51 +++
 ...mumonitorjson-cpuinfo-ppc64-hotplug-4-cpus.json | 221 +++++++++++++
 ...onitorjson-cpuinfo-ppc64-hotplug-4-hotplug.json |  29 ++
 .../qemumonitorjson-cpuinfo-ppc64-hotplug-4.data   |  62 ++++
 ...umonitorjson-cpuinfo-ppc64-no-threads-cpus.json |  77 +++++
 ...nitorjson-cpuinfo-ppc64-no-threads-hotplug.json | 125 ++++++++
 .../qemumonitorjson-cpuinfo-ppc64-no-threads.data  |  72 +++++
 ...nitorjson-cpuinfo-x86-basic-pluggable-cpus.json |  50 +++
 ...orjson-cpuinfo-x86-basic-pluggable-hotplug.json |  82 +++++
 ...emumonitorjson-cpuinfo-x86-basic-pluggable.data |  39 +++
 tests/qemumonitorjsontest.c                        | 183 ++++++++++-
 .../qemuxml2argv-cpu-hotplug-startup.args          |  20 ++
 .../qemuxml2argv-cpu-hotplug-startup.xml           |  29 ++
 tests/qemuxml2argvtest.c                           |   2 +
 tests/testutils.c                                  |   4 +-
 53 files changed, 3638 insertions(+), 310 deletions(-)
 create mode 100644 tests/genericxml2xmlindata/generic-vcpus-individual.xml
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-basic-cpus.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-basic-hotplug.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-basic.data
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-hotplug-1-cpus.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-hotplug-1-hotplug.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-hotplug-1.data
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-hotplug-2-cpus.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-hotplug-2-hotplug.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-hotplug-2.data
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-hotplug-3-cpus.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-hotplug-3-hotplug.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-hotplug-3.data
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-hotplug-4-cpus.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-hotplug-4-hotplug.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-hotplug-4.data
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-no-threads-cpus.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-no-threads-hotplug.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-ppc64-no-threads.data
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-x86-basic-pluggable-cpus.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-x86-basic-pluggable-hotplug.json
 create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-cpuinfo-x86-basic-pluggable.data
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-cpu-hotplug-startup.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-cpu-hotplug-startup.xml

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2.9.2