Hi the xml element to be extended with additional children is the memoryBacking element.
We would like to introduce 3 new elements source,access and allocation
<memoryBacking>
<source type="file|anonymous" path='/path/to/qemu/'/>
<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
Jaroslav Safka (2):
Add support for preallocated fd memory
Add support for preallocated fd memory
docs/schemas/domaincommon.rng | 37 +++++
src/conf/domain_conf.c | 149 +++++++++++++++-----
src/conf/domain_conf.h | 34 +++++
src/qemu/qemu_command.c | 156 ++++++++++++++++-----
src/qemu/qemu_command.h | 4 +
.../qemuxml2argv-fd-memory-no-numa-topology.args | 34 +++++
.../qemuxml2argv-fd-memory-no-numa-topology.xml | 96 +++++++++++++
.../qemuxml2argv-fd-memory-numa-topology.args | 34 +++++
.../qemuxml2argv-fd-memory-numa-topology.xml | 99 +++++++++++++
.../qemuxml2argv-memorybacking-set.xml | 32 +++++
.../qemuxml2argv-memorybacking-unset.xml | 32 +++++
tests/qemuxml2argvtest.c | 24 ++++
.../qemuxml2xmlout-memorybacking-set.xml | 40 ++++++
.../qemuxml2xmlout-memorybacking-unset.xml | 40 ++++++
tests/qemuxml2xmltest.c | 3 +
15 files changed, 748 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-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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