Sorry for the delay - got a bit distracted by other topics. Just did a retest with "linux-image-4.4.0-116-generic_4.4.0-116.140~lp1735420ModifiedAnnotations_s390x.deb" but still can see the kvm device:
ubuntu@ubu-vm-01:~$ uname -a Linux ubu-vm-01 4.4.0-116-generic #140~lp1735420ModifiedAnnotations SMP Wed Mar 21 17:57:02 UTC 20 s390x s390x s390x GNU/Linux ubuntu@ubu-vm-01:~$ kvm-ok INFO: /dev/kvm exists KVM acceleration can be used ubuntu@ubu-vm-01:~$ ls -la /dev/kvm crw-rw---- 1 root kvm 10, 232 Mar 27 01:45 /dev/kvm ubuntu@ubu-vm-01:~$ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1735420 Title: Avoid creation of /dev/kvm in Xenial KVM virtual machines on s390x Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: Triaged Status in linux source package in Xenial: Triaged Bug description: Since nested virtualization with KVM is not supported on s390x, please disable this in Xenial - in case it's doable with reasonable effort. (I think it was already disabled for later Ubuntu releases ... was also discussed on IRC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1735420/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp