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SubjectRe: [PATCH] KVM: s390: Do not leak kernel stack data in the KVM_S390_INTERRUPT ioctl
On 13/09/2019 09.20, Cornelia Huck wrote:
> On Thu, 12 Sep 2019 13:23:38 +0200
> Thomas Huth <> wrote:
>> Hmm, we already talked about deprecating support for pre-3.15 kernel
>> stuff in the past (see
>> for
>> example),
> Btw: did we ever do that? I don't quite recall what code we were
> talking about...

We never really did - but we also never fixed the issue: If you run the
current QEMU on a kernel before 3.15, it refuses to work due to the
missing in-kernel FLIC device:

Initialization of device s390-flic-kvm failed: KVM is missing capability

Since nobody really complained so far that running QEMU with KVM is
still required on a kernel < 3.15, I think we could make this also
"official" now and improve the error message a little bit, pointing the
user to a kernel >= 3.15.


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