On 13/09/2019 09.37, David Hildenbrand wrote: > 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 ... Yes, that error message is part of QEMU, so I was referring to that one. Sorry for mixing this into a mail thread on the kernel mailing list :-/ Thomas
