linux_dsm_epyc7002/drivers/ptp
Vivek Thampi 7d10001e20 ptp: add VMware virtual PTP clock driver
Add a PTP clock driver called ptp_vmw, for guests running on VMware ESXi
hypervisor. The driver attaches to a VMware virtual device called
"precision clock" that provides a mechanism for querying host system time.
Similar to existing virtual PTP clock drivers (e.g. ptp_kvm), ptp_vmw
utilizes the kernel's PTP hardware clock API to implement a clock device
that can be used as a reference in Chrony for synchronizing guest time with
host.

The driver is only applicable to x86 guests running in VMware virtual
machines with precision clock virtual device present. It uses a VMware
specific hypercall mechanism to read time from the device.

Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Vivek Thampi <vithampi@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:25:07 -08:00
..
idt8a340_reg.h
Kconfig ptp: add VMware virtual PTP clock driver 2020-03-05 17:25:07 -08:00
Makefile ptp: add VMware virtual PTP clock driver 2020-03-05 17:25:07 -08:00
ptp_chardev.c
ptp_clock.c
ptp_clockmatrix.c
ptp_clockmatrix.h
ptp_dte.c
ptp_idt82p33.c ptp: Add a ptp clock driver for IDT 82P33 SMU. 2020-02-24 13:08:46 -08:00
ptp_idt82p33.h ptp: Add a ptp clock driver for IDT 82P33 SMU. 2020-02-24 13:08:46 -08:00
ptp_ines.c
ptp_kvm.c
ptp_pch.c
ptp_private.h
ptp_qoriq_debugfs.c
ptp_qoriq.c
ptp_sysfs.c
ptp_vmw.c ptp: add VMware virtual PTP clock driver 2020-03-05 17:25:07 -08:00