Re: [Xen-devel] [RFC V2] xen: interface: introduce pvclk interface

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 20.01.16 at 10:25, <van.freenix@xxxxxxxxx> wrote:
> On Wed, Jan 20, 2016 at 10:05:15AM +0100, Juergen Gross wrote:
>>On 20/01/16 09:31, Peng Fan wrote:
>>> + */
>>> +struct xen_clkif_request {
>>> +   uint32_t cmd;
>>> +   uint32_t id;
>>> +   uint64_t rate;
>>> +};
>>> +typedef struct xen_clkif_request xen_clkif_request_t;
>>> +
>>> +/*
>>> + * Backend response
>>> + *
>>> + * cmd: command for operation on clk, same with the cmd in request.
>>> + * id: clk id, same with the id in request.
>>> + * success: indicate failure or success for the cmd.
>>
>>Values?
> 
> I'd like to let the frontend/backend driver to determine the value.

No, that would imply matched pairs of frontends and backends. Yet
the purpose of spelling out an interface is to allow interoperability.

Jan


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