[PATCH v1 0/4] KVM: s390: Permit ESA mode guests in VSIE

Eric Farman
2026-04-01T02:09:28Z

Hi Hendrik, Janosch, et al,

Attached is a small series to allow ESA-mode guests in s390 VSIE.
It continues to expect that z/Architecture is the default,
unless opted in by userspace.

I look forward to your thoughts; thanks!

Eric Farman (3):
KVM: s390: vsie: Allow non-zarch guests
KVM: s390: vsie: Disable some bits when in ESA mode
KVM: s390: vsie: Accommodate ESA prefix pages

Hendrik Brueckner (1):
KVM: s390: Add KVM capability for ESA mode guests

Documentation/virt/kvm/api.rst | 8 +++++++
arch/s390/include/asm/kvm_host.h | 1 +
arch/s390/include/asm/kvm_host_types.h | 3 +--
arch/s390/kvm/kvm-s390.c | 6 ++++++
arch/s390/kvm/kvm-s390.h | 5 ++++-
arch/s390/kvm/vsie.c | 29 ++++++++++++++++++++++----
include/uapi/linux/kvm.h | 1 +
7 files changed, 46 insertions(+), 7 deletions(-)

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2.51.0