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a0e136d436
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>
10 lines
278 B
Makefile
10 lines
278 B
Makefile
#
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# Makefile for PTP 1588 clock support.
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#
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ptp-y := ptp_clock.o ptp_chardev.o ptp_sysfs.o
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obj-$(CONFIG_PTP_1588_CLOCK) += ptp.o
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obj-$(CONFIG_PTP_1588_CLOCK_IXP46X) += ptp_ixp46x.o
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obj-$(CONFIG_PTP_1588_CLOCK_PCH) += ptp_pch.o
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obj-$(CONFIG_PTP_1588_CLOCK_KVM) += ptp_kvm.o
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