On Tue, May 30, 2017 at 2:34 PM, Vitaly Kuznetsov <vkuzn...@redhat.com> wrote: > Hyper-V supports 'fast' hypercalls when all parameters are passed through > registers. Implement an inline version of a simpliest of these calls: > hypercall with one 8-byte input and no output.
> + u64 hv_status, control = (u64)code | BIT(16); /* 'fast' flag */ It might make sense to define magic with appropriate name. -- With Best Regards, Andy Shevchenko
