In some examples, a storage medium stores information relating to reset ports associated with respective virtual machines (VMs) of a plurality of VMs. A controller detects, based on the information, an activation of a first reset port associated with a first VM of the plurality of VMs. In response to the detecting, the controller provides an indication of the activation of the first reset port to a hypervisor that is separate from the controller, the indication to cause the hypervisor to reset the first VM.