On Wed, Jun 13, 2018 at 4:00 AM Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> wrote: > > This was reported before by Arnd Bergmann: > > https://www.spinics.net/lists/kvm/msg169536.html > > but it seems his patch got lost. So I think his patch is closer to what the code *should* do. Mine was a big ugly #if around the whole thing, but I really think that *all* those if (static_branch_unlikely(&enable_evmcs)... cases should probably be using IS_ENABLED(CONFIG_HYPERV) too. Preferably by simply having a helper macro or inline function to do both tests. I intentionally did just he big brute-force thing, I'm hoping the kvm hyper-v people will clean this up. But obviously this also showed a lack of testing. Linus