I am Ivan from Kyiv/Ukraine. Used to work with Xen years ago - and only for x86_64 platform. Currently getting back to using latest version of XenServer for x86_64, considering starting to use it for ARM64 and looking forward for helping in porting in to MIPS.
Registering here cause I am trying to find listeners and speakers for those conferences:
https://devopsstage.com/
https://2018.uapycon.org/
Ivan