Bug 1998950

Summary:	Add machine type compatibility update for 6.1 rebase [s390x]
Product:	Red Hat Enterprise Linux 8	Reporter:	Miroslav Rezanina <mrezanin>
Component:	qemu-kvm	Assignee:	Thomas Huth <thuth>
qemu-kvm sub component:	Machine Types	QA Contact:	smitterl
Status:	CLOSED ERRATA	Docs Contact:
Severity:	low
Priority:	low	CC:	bfu, cohuck, dhildenb, jinzhao, jmaloy, juzhang, lijin, qzhang, smitterl, thuth, virt-bugs, virt-maint
Version:	8.6	Keywords:	Triaged
Target Milestone:	rc
Target Release:	8.6
Hardware:	s390x
OS:	Linux
Whiteboard:
Fixed In Version:	qemu-kvm-6.1.0-2.module+el8.6.0+12815+0d4739c1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1998945	Environment:
Last Closed:	2022-05-10 13:20:33 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1998945

Description Miroslav Rezanina 2021-08-30 05:57:05 UTC

+++ This bug was initially created as a clone of Bug #1998945 +++

After we rebase to QEMU 6.1 we need to ensure old machine types stays compatible with previous version. 

Check the changes and prepare fix for keeping machine types compatible.

Comment 1 John Ferlan 2021-09-09 13:42:13 UTC

Bulk update: Move RHEL-AV bugs to RHEL8.

Comment 2 Thomas Huth 2021-09-28 07:54:12 UTC

FWIW, looks like there is not much to do for s390x here: hw_compat_6_0 only contains entries that are not related to s390x, so this should not affect the s390x machine type.

Comment 7 smitterl 2021-10-29 09:35:39 UTC

Verified forth and back migration works with:

Source host
qemu-kvm-6.0.0-29.module+el8.5.0+12386+43574bac.s390x

Destination host
qemu-kvm-6.1.0-3.module+el8.6.0+12982+5e169f40.s390x

Guest
s390-ccw-virtio-rhel8.5.0
kernel-4.18.0-348.el8.s390x

Auto test case
virsh.migrate_vm.positive_testing.live_migration.bi_directional.with_postcopy

Comment 10 errata-xmlrpc 2022-05-10 13:20:33 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2022:1759