Since this got upstream accepted with v5.15 - this can be set to Fix
Released already now - and btw. not only for lunar (planned target
kernel 6.2), but also for kinetic (5.19) as well as for jammy (5.15).
** Also affects: linux (Ubuntu Lunar)
Importance: High
Assignee: Skipper Bug Screeners (skipper-screen-team)
Status: In Progress
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Kinetic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Kinetic)
Importance: Undecided => High
** Changed in: linux (Ubuntu Jammy)
Importance: Undecided => High
** Changed in: linux (Ubuntu Jammy)
Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)
** Changed in: linux (Ubuntu Kinetic)
Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)
** Changed in: linux (Ubuntu Lunar)
Status: In Progress => Fix Released
** Changed in: linux (Ubuntu Kinetic)
Status: New => Fix Released
** Changed in: linux (Ubuntu Jammy)
Status: New => Fix Released
** Changed in: ubuntu-z-systems
Status: In Progress => Fix Released
** Information type changed from Private to Public
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2004491
Title:
[23.04 FEAT] KVM: Enablement of device busid for subchannels
Status in Ubuntu on IBM z Systems:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Jammy:
Fix Released
Status in linux source package in Kinetic:
Fix Released
Status in linux source package in Lunar:
Fix Released
Bug description:
Feature Description
Before kernel 5.15 and libvirt 8.4 it was not possible to know a CCW device
bus ID (devno) if the device is unbound from its 'proper' device driver (e.g.
dasd-eckd), which is the case if a CCW device is passed through to a KVM guest.
This places an unnecessary burden on VM admins, as they have to keep track of
the mapping between a subchannel id and the bus id manually, outside of the KVM
management stack.
Notes: With kernel 5.15 an additional sysfs property 'dev_busid' was added to
the sysfs entry for subchannels which is exposed by libvirt 8.4 and higher.
These changes were done in the context of maintainership activities, but with
newer libvirt versions included, it makes sense to also include the patch in
distro releases.
The commit is
https://github.com/torvalds/linux/commit/d3683c055212bf910d4e318f7944910ce10dbee6
To manage notifications about this bug go to:
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