Certain IBM software is now available to run on Azure virtual machines and it’s licensed either with a Bring Your Own Licence (BYOL) or Bring Your Own Software and Licence (BYOSL) model, depending on whether you’ll be installing and configuring the software yourself (BYOSL) or using a Microsoft VM with the software provided (BYOL). This site from IBM is a useful resource if you need to know more: http://ibm.co/1xhcaH8.