Re: [patch 4/4] PTP: add kvm PTP driver

[Richard Cochran]

On Tue, Jan 24, 2017 at 03:09:42PM -0200, Marcelo Tosatti wrote:
> Add a driver with gettime method returning hosts realtime clock.
> This allows Chrony to synchronize host and guest clocks with 
> high precision (see results below).
> 
> chronyc> sources
> MS Name/IP address         Stratum Poll Reach LastRx Last sample
> ===============================================================================
> #* PHC0                          0   3   377     4   +162ns[ -683ns] +/-   11ns
> 
> To configure Chronyd to use PHC refclock, add the 
> following line to its configuration file:
> 
> refclock PHC /dev/ptpX poll 3 dpoll -2 offset 0
> 
> Where /dev/ptpX is the kvmclock PTP clock.
> 
> Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>

Acked-by: Richard Cochran <richardcochran@xxxxxxxxx>