[libvirt] [PATCH 0/2] Add support for preallocated fd memory

Safka, JaroslavX jaroslavx.safka at intel.com
Tue Nov 1 11:50:33 UTC 2016


I forgot to add the updated documentation. I will send it in different patch.

> -----Original Message-----
> From: Safka, JaroslavX
> Sent: Tuesday, November 01, 2016 12:45 PM
> To: libvir-list at redhat.com
> Cc: Ptacek, MichalX <michalx.ptacek at intel.com>; Mooney, Sean K
> <sean.k.mooney at intel.com>; Safka, JaroslavX <jaroslavx.safka at intel.com>
> Subject: [PATCH 0/2] Add support for preallocated fd memory
> 
> Hi,
> we would like to introduce 3 new elements source,access and allocation in
> memoryBacking element.
> 
> <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=/var/lib/libvirt/qemu -numa node,memdev=mem Should be added to the
> qemu commandline
> 
> If access is shared then the share=on parameter should 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
> 
> Also token memAccess in numa cell is used (if not present, default value from
> memoryBacking is used)
> 
> Jaroslav Safka (2):
>   Add support for preallocated fd memory
>   Add support for preallocated fd memory
> 
>  docs/schemas/domaincommon.rng                      |  30 ++++
>  src/conf/domain_conf.c                             | 138 +++++++++++++-----
>  src/conf/domain_conf.h                             |  33 +++++
>  src/qemu/qemu_command.c                            | 156 ++++++++++++++++-----
>  src/qemu/qemu_command.h                            |   4 +
>  .../qemuxml2argv-fd-memory-no-numa-topology.args   |  33 +++++
>  .../qemuxml2argv-fd-memory-no-numa-topology.xml    |  91 ++++++++++++
>  .../qemuxml2argv-fd-memory-numa-topology.args      |  33 +++++
>  .../qemuxml2argv-fd-memory-numa-topology.xml       |  94 +++++++++++++
>  .../qemuxml2argv-fd-memory-numa-topology2.args     |  36 +++++
>  .../qemuxml2argv-fd-memory-numa-topology2.xml      |  95 +++++++++++++
>  .../qemuxml2argv-fd-memory-numa-topology3.args     |  39 ++++++
>  .../qemuxml2argv-fd-memory-numa-topology3.xml      |  96 +++++++++++++
>  .../qemuxml2argv-memorybacking-set.xml             |  32 +++++
>  .../qemuxml2argv-memorybacking-unset.xml           |  32 +++++
>  tests/qemuxml2argvtest.c                           |  42 ++++++
>  .../qemuxml2xmlout-memorybacking-set.xml           |  40 ++++++
>  .../qemuxml2xmlout-memorybacking-unset.xml         |  40 ++++++
>  tests/qemuxml2xmltest.c                            |   3 +
>  19 files changed, 1001 insertions(+), 66 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
> 
> --
> 2.7.4

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