On 10 July 2018 at 10:12, Auger Eric <eric.auger@xxxxxxxxxx> wrote: > Hi Christoffer, Marc, > > On 07/10/2018 10:33 AM, Marc Zyngier wrote: >> On 09/07/18 23:48, Christoffer Dall wrote: >>> What I would really like to know is whether this is really an issue or >>> not. Do people who run products based on KVM, such as RHEV, have any >>> expectations about cross-kernel version migration? >> >> I'd like to know as well. > > Sorry I did not have time to review the series properly. My > understanding is we generally care about migration between different > kernels. For the ITS, we made the IIDR writable too to manage the ABI > version properly. See ab01c6bdacc43c41c6b326889f4358f5afc38bf9. But > maybe I missed the crux of the matter. I think the question is whether we're doing this because we think hypothetical users care, or because we know actual real in-production users really care... thanks -- PMM