| From | Andy Shevchenko <> | Date | Tue, 30 May 2017 19:31:11 +0300 | Subject | Re: [PATCH v5 04/10] x86/hyper-v: fast hypercall implementation |
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On Tue, May 30, 2017 at 2:34 PM, Vitaly Kuznetsov <vkuznets@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
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