[libvirt] [PATCH v2 0/2] Guest NUMA topology support

[Bharata B Rao]

Hi,

This is v2 of the patchset that adds support for specifying NUMA topology
for guests.

<cpu>
        ...
        <topology sockets='2' cores='4' threads='2'/>
        <numa>
                <cell cpus='0-7' mems='512000'/>
                <cell cpus='8-15' mems='512000'/>
        </numa>
        ...
</cpu>

This change allows libvirt to generate -numa options for QEMU/KVM.

This patchset passes all tests except daemon-conf test.

Changes for v2
--------------
- Renamed mems to memory in NUMA cell specification.
- Make both cpus= and memory= mandatory in a NUMA cell.
- Reuse cpuset and memoryKB definitions for cpus and memory.
- Fix a bug in reading memory=.
- Correct error handling for usages of virXMLPropString.
- Support virsh dumpxml.
- Fix XML in domaincommon.rng so that <numa> works correctly for
  both <cpu> ... <cpu> as well as <cpu match="..."> ... <cpu>
- Don't use virBufferTruncate.
- Modifiy qemuxml2argv test cases for s/mems/memory change.
- Use virBufferLit wherever possible.
- Now qemuBuildNumaCPUArgStr can't fail, hence doesn't need return val.
- Pass memory in MB to qemu.

v1 - https://www.redhat.com/archives/libvir-list/2011-November/msg00247.html
v0 - https://www.redhat.com/archives/libvir-list/2011-October/msg00025.html
RFC - http://permalink.gmane.org/gmane.comp.emulators.libvirt/44626

Regards,
Bharata.