[libvirt] [PATCHv4 0/3] Add support for file memorybacking

[Jaroslav Safka]

Hi,
we would like to introduce 3 new elements source,access and allocation in memoryBacking element.
For now it was made for numa topology.

<memoryBacking>
     <source type="file|anonymous"/>
     <access mode="shared|private"/>
     <allocation mode="immediate|ondemand"/>
</memoryBacking>

If allocation is immediate then -mem-prealloc should be added to the qemu commanline.
If source is file then
-object memory-backend-file,id=mem,size=1024M,mem-path=*lib dir path* -numa node,memdev=mem Will be added to the qemu commandline

If access is shared then the "share=on" parameter will be added to the memory-backend-file e.g.
-object memory-backend-file,id=mem,size=1024M,mem-path=/var/lib/libvirt/qemu,share=on

The access mode can be overriden by specifying token memAccess in numa cell.

The test cpu-numa-memshared was removed, because behaviour was changed and is not needed anymore

Jaroslav Safka (3):
  qemu,conf: Rename virNumaMemAccess to virDomainMemoryAccess
  conf: Add new xml elements for file memorybacking support
  qemu: Add args generation for file memory backing

 docs/formatdomain.html.in                          |   9 ++
 docs/schemas/domaincommon.rng                      |  30 +++++
 src/conf/domain_conf.c                             | 133 ++++++++++++++++-----
 src/conf/domain_conf.h                             |  22 ++++
 src/conf/numa_conf.c                               |  15 +--
 src/conf/numa_conf.h                               |  14 +--
 src/qemu/qemu_command.c                            | 123 ++++++++++++-------
 src/qemu/qemu_process.c                            |   2 +-
 .../qemuxml2argv-fd-memory-no-numa-topology.args   |  21 ++++
 .../qemuxml2argv-fd-memory-no-numa-topology.xml    |  27 +++++
 .../qemuxml2argv-fd-memory-numa-topology.args      |  24 ++++
 .../qemuxml2argv-fd-memory-numa-topology.xml       |  30 +++++
 .../qemuxml2argv-fd-memory-numa-topology2.args     |  26 ++++
 .../qemuxml2argv-fd-memory-numa-topology2.xml      |  31 +++++
 .../qemuxml2argv-fd-memory-numa-topology3.args     |  30 +++++
 .../qemuxml2argv-fd-memory-numa-topology3.xml      |  32 +++++
 .../qemuxml2argv-memorybacking-set.xml             |  24 ++++
 .../qemuxml2argv-memorybacking-unset.xml           |  24 ++++
 tests/qemuxml2argvtest.c                           |  12 +-
 .../qemuxml2xmlout-memorybacking-set.xml           |  32 +++++
 .../qemuxml2xmlout-memorybacking-unset.xml         |  32 +++++
 tests/qemuxml2xmltest.c                            |   4 +-
 22 files changed, 605 insertions(+), 92 deletions(-)
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-fd-memory-no-numa-topology.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-fd-memory-no-numa-topology.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-fd-memory-numa-topology.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-fd-memory-numa-topology.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-fd-memory-numa-topology2.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-fd-memory-numa-topology2.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-fd-memory-numa-topology3.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-fd-memory-numa-topology3.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-memorybacking-set.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-memorybacking-unset.xml
 create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-memorybacking-set.xml
 create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-memorybacking-unset.xml

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2.7.4

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