Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: >On 21/02/20 16:23, Sean Christopherson wrote: >> >> I'm guessing no VMM actually uses this ioctl(), e.g. neither Qemu or >> CrosVM use it, which is why the broken behavior has gone unnoticed. >> Don't suppose you'd want to write a selftest to hammer KVM_{SET,GET}_CPUID2? >> > >I would just drop KVM_GET_CPUID2 altogether and see if someone complains. > Will do. Thanks.