Ubuntu
linux package

[22.04 FEAT] KVM: Enable access register mode

Bug #1933178 reported by bugproxy
14
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

For instructions acting on logical addresses, the kvm module has guest page table walking code in gaccess.c. This code handles all kind of page tables just fine, but it does not handle access register mode. This items extends gaccess to also correctly AR mode. This will cover all in kernel intercepts, as well as the MEMOP ioctl for userspace.
Value: Interoperability

bugproxy (bugproxy)
tags: added: architecture-s39064 bugnameltc-193315 severity-high targetmilestone-inin2110
Changed in ubuntu:
assignee: nobody → Skipper Bug Screeners (skipper-screen-team)
affects: ubuntu → linux (Ubuntu)
Frank Heimes (fheimes)
Changed in ubuntu-z-systems:
importance: Undecided → High
Changed in linux (Ubuntu):
status: New → Incomplete
Changed in ubuntu-z-systems:
status: New → Incomplete
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> 2021-09-09 05:00 EDT-------
Feature doesn't make it into impish / 21.10, hence moving to 22.04
Changing IBM BZ Target Milestone:21.10->22.04

tags: added: targetmilestone-inin2204
removed: targetmilestone-inin2110
Frank Heimes (fheimes)
summary: - [21.10 FEAT] KVM: Enable access register mode
+ [22.04 FEAT] KVM: Enable access register mode
Revision history for this message
bugproxy (bugproxy) wrote :

------- Comment From <email address hidden> 2022-02-20 18:09 EDT-------
No patches have to be applied for this feature.
This item is for verification / test only.

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

Updating ticket to Fix Released (hence closing it) in agreement with IBM.

Changed in linux (Ubuntu):
status: Incomplete → Fix Released
Changed in ubuntu-z-systems:
status: Incomplete → Fix Released
Frank Heimes (fheimes)
information type: Private → Public
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