Re: [PATCH v2 8/8] KVM: s390: Fix KVM_S390_VCPU_FAULT ioctl

[Christian Borntraeger]

Am 20.03.26 um 17:15 schrieb Claudio Imbrenda:
> A previous commit changed the behaviour of the KVM_S390_VCPU_FAULT
> ioctl. The current (wrong) implementation will trigger a guest
> addressing exception if the requested address lies outside of a
> memslot, unless the VM is UCONTROL.
>
> Restore the previous behaviour by open coding the fault-in logic.
>
> Fixes: 3762e905ec2e ("KVM: s390: use __kvm_faultin_pfn()")
> Signed-off-by: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx>

Is this something that we could improve in the
tools/testing/selftests/kvm/s390/ucontrol_test.c
testcase? We do test KVM_S390_VCPU_FAULT in there.

Apart from that

Acked-by: Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>