------- Comment From [email protected] 2018-10-31 11:28 EDT-------
In addition s390tools also need an update
Backport from 2.7.0 to 2.3.0

Git commit: for s390-tools 2.7.0
https://github.com/ibm-s390-tools/s390-tools/commit/0a0b4c382693cded5652404e8fa2c0e483aa33df
lszcrypt: support for alternate zcrypt device drivers

For 2.3.0 Ubuntu 18.04, maybe you also need to pull addl. commits within
the subdir zconf/zcyrpt.

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https://bugs.launchpad.net/bugs/1799184

Title:
  [18.04 FEAT] zcrypt DD: introduce APQN tags to support deterministic
  driver binding

Status in Ubuntu on IBM z Systems:
  In Progress
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Bionic:
  In Progress

Bug description:
  With the introduction of KVM crypto virtualization the driver bound to an AP 
queue device is no longer unique determined.
  This feature provides a deterministic hot plugging semantics of AP queues 
that may be bound to multiple drivers.
  In particular it enables to configure an AP queue (APQN) as being bound to a 
particular driver even if the associate HW gets intermittently lost and 
reconnected.

  This function has to be applied to kernel 4.15 for Ubuntu 18.04,

  Git Commit information available here:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1784331

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