Re: [libvirt] [PATCH v3 3/3] libxl: implement virDomainGetNumaParameters

Although, having it depending on Xen >= 4.3 (by using the proper libxl feature flag). Xen currently implements a NUMA placement policy which is basically the same as the 'interleaved' policy of `numactl', although it can be applied on a subset of the available nodes. We therefore hardcode "interleave" as 'numa_mode', and we use the newly introduced libxl interface to figure out what nodes a domain spans ('numa_nodeset'). With this change, it is now possible to query the NUMA node affinity of a running domain: [raistlin@Zhaman ~]$ sudo virsh --connect xen:/// list Id Name State ---------------------------------------------------- 23 F18_x64 running [raistlin@Zhaman ~]$ sudo virsh --connect xen:/// numatune 23 numa_mode : interleave numa_nodeset : 1 Signed-off-by: Dario Faggioli <dario.faggioli(a)citrix.com&gt; --- Changes from v2: * iterators turned from int to size_t Changes from v1: * fixed coding style, as requested during review; * VIR_TYPED_PARAM_STRING_OKAY handled more properly; --- src/libxl/libxl_driver.c | 141 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+)