Bug 2111784

Summary:	Update machine type compatibility for QEMU 7.1.0 update [s390x]
Product:	Red Hat Enterprise Linux 9	Reporter:	Miroslav Rezanina <mrezanin>
Component:	qemu-kvm	Assignee:	Thomas Huth <thuth>
qemu-kvm sub component:	Machine Types	QA Contact:	smitterl
Status:	CLOSED NOTABUG	Docs Contact:
Severity:	medium
Priority:	medium	CC:	dhildenb, smitterl, virt-maint
Version:	9.2	Keywords:	Triaged
Target Milestone:	rc
Target Release:	9.2
Hardware:	s390x
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-09-12 21:48:31 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:	2111769

Description Miroslav Rezanina 2022-07-28 08:04:46 UTC

With rebase to QEMU 7.1.0 we have to update compatibility bits for qemu-kvm package so we keep old machine types stable.

Please add necessary changes to ensure all machine types are compatible with previous versions.

Comment 2 Thomas Huth 2022-08-15 10:23:03 UTC

As far as I can see, we don't need any changes this time, apart from the "hw_compat_rhel_9_1" modification that you already did with your "Introduce upstream 7.0 compat changes" patch, Mirek.
( @dhildenb could you maybe double-check? )

I'll keep looking at the upcoming release candidates of QEMU 7.1, but if nothing else is added with regards to machine type compatibility, I think we can close this BZ as soon as QEMU 7.1 has been released.

Comment 3 David Hildenbrand 2022-08-23 06:46:17 UTC

(In reply to Thomas Huth from comment #2)
> As far as I can see, we don't need any changes this time, apart from the
> "hw_compat_rhel_9_1" modification that you already did with your "Introduce
> upstream 7.0 compat changes" patch, Mirek.
> ( @dhildenb could you maybe double-check? )

I can primarily only spot changes to the QEMU CPU model.

For rhel9.0.0, it should remain unchanged as we explicitly set it to a z14 already, and the upstream change to a z15 shouldn't become active here.

I assume we're good.

Comment 4 Thomas Huth 2022-08-24 10:42:01 UTC

Thanks for double-checking, David! So unless something pops up in the final week before upstream QEMU 7.1 gets released, I think we can finally close this next week.

Comment 5 Thomas Huth 2022-09-12 21:48:31 UTC

AFAIK there were no changes in the final 7.1 release anymore, so we can close this now.