[20.10 FEAT] KVM: Enable transparent CCW IPL from DASD - kernel part

Bug #1887936 reported by bugproxy
12
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Ubuntu on IBM z Systems
Fix Released
High
Skipper Bug Screeners
linux (Ubuntu)
Fix Released
Undecided
Skipper Bug Screeners

Bug Description

A previous feature has introduced the support for native CCW IPL, which however required the setting of a per-device property to enforce unlimited prefetch. The unconditional prefetch may not reflect the intention of the channel program. This feature removes the necessity to specify the additional property and thus enables Linux IPL from vfio-ccw attached DASDs transparently.

Business Case:
Improve system management for CCW passthrough devices.

Feature will contribute to kernel

bugproxy (bugproxy)
tags: added: architecture-s39064 bugnameltc-185363 severity-high targetmilestone-inin2010
Changed in ubuntu:
assignee: nobody → Skipper Bug Screeners (skipper-screen-team)
affects: ubuntu → linux (Ubuntu)
Revision history for this message
Frank Heimes (fheimes) wrote :

Please share the kernel level this is planned for.

Changed in ubuntu-z-systems:
status: New → Incomplete
importance: Undecided → High
assignee: nobody → Skipper Bug Screeners (skipper-screen-team)
Revision history for this message
bugproxy (bugproxy) wrote : Comment bridged from LTC Bugzilla

------- Comment From <email address hidden> 2020-08-24 07:33 EDT-------
Feature available with kernel 5.8.

Revision history for this message
Frank Heimes (fheimes) wrote :

Kernel 5.8 is currently in groovy proposed:
linux-generic | 5.8.0.16.18 | groovy-proposed | s390x
hence updating status to Fix Committed.

Changed in linux (Ubuntu):
status: New → Fix Committed
Changed in ubuntu-z-systems:
status: Incomplete → Fix Committed
Revision history for this message
Frank Heimes (fheimes) wrote :

Kernel 5.8 just migrated from groovy proposed to main,
hence updating the status here to Fix Released.

Changed in linux (Ubuntu):
status: Fix Committed → Fix Released
Changed in ubuntu-z-systems:
status: Fix Committed → Fix Released
Revision history for this message
bugproxy (bugproxy) wrote :

------- Comment From <email address hidden> 2020-08-27 01:08 EDT-------
IBM Bugzilla status->closed, Fix Released with groovy

Frank Heimes (fheimes)
information type: Private → Public
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