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 ptp: clockmatrix: Rework clockmatrix version information. 2020-01-07 13:51:23 -08:00
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: Introduce strict checking of external time stamp options. 2019-11-15 12:48:32 -08:00
ptp_clock.c Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2020-01-19 22:10:04 +01:00
ptp_clockmatrix.c ptp: clockmatrix: Rework clockmatrix version information. 2020-01-07 13:51:23 -08:00
ptp_clockmatrix.h ptp: Add a ptp clock driver for IDT ClockMatrix. 2019-11-03 17:35:40 -08:00
ptp_dte.c ptp: ptp_dte: use devm_platform_ioremap_resource() to simplify code 2019-10-10 16:21:13 -07:00
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: Add a driver for InES time stamping IP core. 2019-12-25 19:51:34 -08:00
ptp_kvm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ptp_pch.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167 2019-05-30 11:26:39 -07:00
ptp_private.h ptp: fix the race between the release of ptp_clock and cdev 2019-12-30 20:19:27 -08:00
ptp_qoriq_debugfs.c ptp_qoriq: add little enadian support 2019-02-12 12:58:48 -05:00
ptp_qoriq.c ptp_qoriq: drop the code of alarm 2020-02-16 18:30:41 -08:00
ptp_sysfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
ptp_vmw.c ptp: add VMware virtual PTP clock driver 2020-03-05 17:25:07 -08:00