Messages in this thread | | | Date | Tue, 21 Oct 2014 10:20:58 +0200 | From | Richard Cochran <> | Subject | Re: [PATCH v2 1/2] timekeeping: add EXPORT_SYMBOL_GPL for do_adjtimex() |
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On Mon, Oct 20, 2014 at 11:02:13PM -0500, Jeff Epler wrote: > It's interesting to imagine that a virtualization host could present a > time service to the guest *userspace*, even when the guest is not > otherwise exposed to the internet at large. This could take the form of > an NTP server on a private network, or as an implementation of a time > source directly usable by ntpd in the guest, for instance as an emulated > serial port with synthetic NEMA GPS signal + PPS signal, for instance.
If the idea is to avoid bothering the guest user space, in order to be convenient, then the host can provide a synthetic PPS, to be used by the kernel's hardpps logic.
Thanks, Richard
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