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

From: Christian Borntraeger

Date: Wed Aug 12 2026 - 12:30:13 EST


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.