** Also affects: linux (Ubuntu Kinetic)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Mantic)
Importance: Medium
Assignee: Canonical Kernel Team (canonical-kernel-team)
Status: Fix Released
** Also affects: linux (Ubuntu Lunar)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Lunar)
Status: New => Fix Released
** Changed in: linux (Ubuntu Kinetic)
Status: New => Won't Fix
** Changed in: linux (Ubuntu Jammy)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1853306
Title:
[22.04 FEAT] Enhanced Interpretation for PCI Functions on s390x -
kernel part
Status in Ubuntu on IBM z Systems:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Jammy:
In Progress
Status in linux source package in Kinetic:
Won't Fix
Status in linux source package in Lunar:
Fix Released
Status in linux source package in Mantic:
Fix Released
Bug description:
The PCI Passthrough implementation is based on intercepting PCI I/O
instructions which leads to a reduced I/O performance compared to execution of
PCI instructions in LPAR.
For improved performance the interpretive execution of the PCI store and PCI
load instructions get enabled.
Further improvement is achieved by enabling the Adapter-Event-Notification
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1853306/+subscriptions
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