On 13.09.19 09:34, Thomas Huth wrote: > On 13/09/2019 09.20, Cornelia Huck wrote: >> On Thu, 12 Sep 2019 13:23:38 +0200 >> Thomas Huth <thuth@xxxxxxxxxx> wrote: >> >>> Hmm, we already talked about deprecating support for pre-3.15 kernel >>> stuff in the past (see >>> https://wiki.qemu.org/ChangeLog/2.12#Future_incompatible_changes 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 > KVM_CAP_DEVICE_CTR > > 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. Didn't we discuss back then to clean up *QEMU* and not the *kernel*? Especially, to wait with cleanups until somebody requests to fix instead. I mean you could have any user space in the wild that still makes use of these interfaces ... -- Thanks, David / dhildenb
