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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2017-01-24 15:09:42 -0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-02-08 17:16:20 +0100 |
| commit | a0e136d436ded817c0aade72efdefa56a00b4e5e (patch) | |
| tree | 8dabe40530f4b7e5742cece09fff99c6b6c2ed82 /fs | |
| parent | f4066c2bc4d0de4e5dcbff21dae41e89fe8f38c0 (diff) | |
| download | linux-a0e136d436ded817c0aade72efdefa56a00b4e5e.tar.bz2 | |
PTP: add kvm PTP driver
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
===============================================================================
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@redhat.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions