Messages in this thread | | | From | Steffen Eiden <> | Subject | [PATCH v4 0/4] KVM: s390: Enable AP instructions for PV-guests | Date | Tue, 15 Aug 2023 17:14:11 +0200 |
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This series enables general KVM support for AP-passthrough for Secure Execution guests (PV-guests).
To enable AP inside PV-guests two things have to be done/considered: 1) set corresponding flags in the Create Secure Configuration UVC if firmware supports AP for PV-guests (patch 4). 2) enable/disable AP in PV-guests if the VMM wants this (patch 3).
since v3: - add a patch from Viktor that handles a new rc that can occur with AP-pt. - remove KVM_S390_VM_CPU_UV_FEAT_GUEST_DEFAULT define (Janosch) - add a boundary check in uv_has_feature() (Janosch) - add r-b from Janosch
since v2: - applied styling recommendations from Heiko
since v1: - PATCH 1: r-b from Claudio - PATCH 2: fixed formatting issues (Claudio) - PATCH 3: removed unnecessary checks (Claudio)
Steffen
Steffen Eiden (3): s390: uv: UV feature check utility KVM: s390: Add UV feature negotiation KVM: s390: pv: Allow AP-instructions for pv-guests
Viktor Mihajlovski (1): KVM: s390: pv: relax WARN_ONCE condition for destroy fast
arch/s390/include/asm/kvm_host.h | 2 + arch/s390/include/asm/uv.h | 19 +++++++- arch/s390/include/uapi/asm/kvm.h | 16 +++++++ arch/s390/kernel/uv.c | 2 +- arch/s390/kvm/kvm-s390.c | 75 +++++++++++++++++++++++++++++++- arch/s390/kvm/pv.c | 9 ++-- arch/s390/mm/fault.c | 2 +- 7 files changed, 118 insertions(+), 7 deletions(-)
-- 2.41.0
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