You have to use the ptp_kvm linux module for this. See
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/chap-kvm_guest_timing_management#sect-KVM_guest_timing_management-Host-guest-time-sync
--
cheers,
Hussam
(Hussa
Hello,
I am trying to build a proof-of-concept systems that will listen for ptp and
then serve ntp, but I seem to have a problem: the clock on the system does not
seem to get set by ptp, and therefore the clock drifts. I have a test system
that uses multiple internet ntp sources and this one: