[PATCH v6 00/33] KVM: s390: Introduce arm64 KVM

[Steffen Eiden]

On Wed, Aug 12, 2026 at 09:36:26AM -0700, Sean Christopherson wrote:
> On Wed, Aug 12, 2026, Christian Borntraeger wrote:
> > Am 12.08.26 um 17:35 schrieb Steffen Eiden:
> > 
> > > C) KVM/s390 reorganization (patches 12-22):
> > >     Prepare s390 for a second KVM module. Move existing s390 KVM code into
> > >     dedicated s390 and gmap subdirectories to make room for a second KVM
> > >     implementation. Refactor gmap to better integrate with the second KVM
> > >     implementation. GMAP hides a few features only required when managing s390
> > >     guests: Storage keys, CMMA, and prefix handling. Those are guarded behind an
> > >     #if KVM_S390_MANAGES_S390_GUEST. Only features which implementation would
> > >     break kvm-arm64 code are guarded. I leave the non-breaking stuff (like
> > >     shadow-gmaps or ucontrol) for the LTO.
> > 
> > I will likely take 12-21 for the next merge window so that we can minimize this
> > patch set.  sashiko and claude are happy. Mostly mechanical moves. I will review
> > those first and might do small fixups myself if necessary.
> 
> Speaking of trimming down the patch set...
> 
> Steffen, can you post patch 1, "vfio: Use file-based reference counting for KVM",
> separately?  I'd love to get that merged sooner than later.

Sent a Spin-off with some improvements:

https://lore.kernel.org/all/20260812-vfio-v1-1-5cfe0b1fa4e7@linux.ibm.com/

	Steffen