** Tags removed: targetmilestone-inin2304
** Tags added: targetmilestone-inin2310

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https://bugs.launchpad.net/bugs/1933180

Title:
  [23.04 FEAT] KVM: Improve memory reclaiming for z15 Secure Execution
  guests

Status in Ubuntu on IBM z Systems:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released

Bug description:
  Currently, Secure Execution guest memory needs to be exported or destroyed, 
when a secure guest is rebooted or shut down. On the z15 this currently happens 
in a serialized manner, which takes long and also causes the host system to 
become unresponsive for extended periods, if very large guests are terminated. 
Changes to the KVM memory management will be required to improve the 
scalability.
  Value: Scalability improvement

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