I tried some more: 4.10 rc3 does have the patch: ubuntu@ubu-vm-01:~$ uname -a Linux ubu-vm-01 4.10.0-041000rc3-generic #201701081831 SMP Mon Jan 9 00:34:16 UTC 2017 s390x s390x s390x GNU/Linux ubuntu@ubu-vm-01:~$ kvm-ok INFO: /dev/kvm does not exist HINT: sudo modprobe kvm INFO: For more detailed results, you should run this as root HINT: sudo /usr/sbin/kvm-ok ubuntu@ubu-vm-01:~$ ls -la /dev/kvm ls: cannot access '/dev/kvm': No such file or directory
4.10-rc2 seems to be the last one without: ubuntu@ubu-vm-01:~$ uname -a Linux ubu-vm-01 4.10.0-041000rc2-generic #201701011831 SMP Mon Jan 2 00:41:33 UTC 2017 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------- 1 root root 10, 232 Mar 20 07:41 /dev/kvm -- 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