On Thu, Apr 20, 2023 at 1:53 PM Peter Xu <peterx@xxxxxxxxxx> wrote: > > Totally not familiar with nested, just a pure question on whether all the > kvm_vcpu_map() callers will be prepared to receive this -EFAULT yet? The return values of this function aren't being changed: I'm just setting some extra state in the kvm_run_struct in the case where this function already returns -EFAULT.