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[libvirt] [PATCH v2 00/16] Support for per-guest-node binding



Currently we are only able to bind the whole domain to some host nodes
using the /domain/numatune/memory element.  Numerous requests were
made to support host<->guest numa node bindings, so this series tries
to implement that using /domain/numatune/memnode elements.

That is incompatible with automatic numa placement (numad) since that
makes no sense.

Some of these patches were ACK'd in the previous round, but this
version completely rewrites the parsing and formatting of the numatune
XML element and places it into a separate file.  Hence the repost of
all the patches even with those ACK'd ones.

Patches 1-3 move some code around, patch 4 adds cell id specification
into the XML (which is used later on).  Then patches 5-7 rework the
numatune handling, which clears out some odd things, but mostly cleans
the parsing code.  Patch 8 adds the support for memnode elements in
the XML conf code and together with patch 9 enables the use of it
outside numatune_conf.c.  After that, I needed to probe qemu for 2
capabilities; for one of them patch 10 adds the possibility to probe
for it, then two following patches 11 and 12 add the probing data.
One of the capabilities tells us that we can use disjoint ranges (not
necessarily for the cpus= param) with qemu, so patch 13 makes a use of
it.  Finally patch 14 uses the memnode data to tell qemu which host
nodes should be used for the allocations of memory blocks.  Patch 15
does almost nothing, but the next patch looks better with it.  And the
last patch, number 16, fixes a bug with KVM and cgroups.

One last note, APIs for handling the memnode settings will be added
later.  I'm sending this to prepare the ground for Michal's work with
hugepages.


Martin Kletzander (16):
  qemu: purely a code movement
  qemu: remove useless error check
  conf: purely a code movement
  conf, schema: add 'id' field for cells
  numatune: create new module for numatune
  numatune: unify numatune struct and enum names
  numatune: Encapsulate numatune configuration in order to unify results
  conf, schema: add support for memnode elements
  numatune: add support for per-node memory bindings in private APIs
  qemu: allow qmp probing for cmdline options without params
  qemu: memory-backend-ram capability probing
  qemu: newer -numa parameter capability probing
  qemu: enable disjoint numa cpu ranges
  qemu: pass numa node binding preferences to qemu
  qemu: split out cpuset.mems setting
  qemu: leave restricting cpuset.mems after initialization

 docs/formatdomain.html.in                          |  26 +-
 docs/schemas/domaincommon.rng                      |  22 +
 po/POTFILES.in                                     |   1 +
 src/Makefile.am                                    |   3 +-
 src/conf/cpu_conf.c                                |  39 +-
 src/conf/cpu_conf.h                                |   3 +-
 src/conf/domain_conf.c                             | 203 ++-----
 src/conf/domain_conf.h                             |  10 +-
 src/conf/numatune_conf.c                           | 589 +++++++++++++++++++++
 src/conf/numatune_conf.h                           | 108 ++++
 src/libvirt_private.syms                           |  24 +-
 src/lxc/lxc_cgroup.c                               |  20 +-
 src/lxc/lxc_controller.c                           |   5 +-
 src/lxc/lxc_native.c                               |  15 +-
 src/parallels/parallels_driver.c                   |   7 +-
 src/qemu/qemu_capabilities.c                       |  16 +-
 src/qemu/qemu_capabilities.h                       |   2 +
 src/qemu/qemu_cgroup.c                             |  52 +-
 src/qemu/qemu_cgroup.h                             |   4 +-
 src/qemu/qemu_command.c                            |  98 +++-
 src/qemu/qemu_driver.c                             |  84 ++-
 src/qemu/qemu_monitor.c                            |   6 +-
 src/qemu/qemu_monitor.h                            |   3 +-
 src/qemu/qemu_monitor_json.c                       |   8 +-
 src/qemu/qemu_monitor_json.h                       |   3 +-
 src/qemu/qemu_process.c                            |  12 +-
 src/util/virnuma.c                                 |  61 +--
 src/util/virnuma.h                                 |  28 +-
 tests/qemucapabilitiesdata/caps_1.6.50-1.caps      |   1 +
 tests/qemucapabilitiesdata/caps_1.6.50-1.replies   |   5 +
 tests/qemumonitorjsontest.c                        |  20 +-
 .../qemuxml2argv-cpu-numa-disjoint.args            |   6 +
 .../qemuxml2argv-cpu-numa-disjoint.xml             |  28 +
 tests/qemuxml2argvdata/qemuxml2argv-cpu-numa1.xml  |   6 +-
 tests/qemuxml2argvdata/qemuxml2argv-cpu-numa2.xml  |   6 +-
 tests/qemuxml2argvdata/qemuxml2argv-cpu-numa3.xml  |  25 +
 .../qemuxml2argv-numatune-auto-prefer.xml          |  29 +
 .../qemuxml2argv-numatune-memnode-no-memory.args   |   8 +
 .../qemuxml2argv-numatune-memnode-no-memory.xml    |  30 ++
 .../qemuxml2argv-numatune-memnode-nocpu.xml        |  25 +
 .../qemuxml2argv-numatune-memnode.args             |  11 +
 .../qemuxml2argv-numatune-memnode.xml              |  33 ++
 .../qemuxml2argv-numatune-memnodes-problematic.xml |  31 ++
 tests/qemuxml2argvtest.c                           |  12 +
 .../qemuxml2xmlout-cpu-numa1.xml                   |  28 +
 .../qemuxml2xmlout-cpu-numa2.xml                   |  28 +
 .../qemuxml2xmlout-numatune-auto-prefer.xml        |  29 +
 .../qemuxml2xmlout-numatune-memnode.xml            |  33 ++
 tests/qemuxml2xmltest.c                            |   8 +
 49 files changed, 1467 insertions(+), 387 deletions(-)
 create mode 100644 src/conf/numatune_conf.c
 create mode 100644 src/conf/numatune_conf.h
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-disjoint.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-disjoint.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-cpu-numa3.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-numatune-auto-prefer.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode-no-memory.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode-no-memory.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode-nocpu.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-numatune-memnodes-problematic.xml
 create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-cpu-numa1.xml
 create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-cpu-numa2.xml
 create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-numatune-auto-prefer.xml
 create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-numatune-memnode.xml

--
2.0.0


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