Re: [PATCH v6] ptp: Add support for the AMZNC10C 'vmclock' device

2024-09-26 Thread David Woodhouse
On Thu, 2024-09-26 at 11:22 +0200, Paolo Abeni wrote: > > Please have a better run at checkpatch before your next submission, > there are still a few ones - most relevant white-space damage. Oops, apparently I missed one. Sorry about that. I'll also add a MAINTAINERS entry, just to make checkpa

Re: [PATCH v6] ptp: Add support for the AMZNC10C 'vmclock' device

2024-09-26 Thread Paolo Abeni
On 9/20/24 11:32, David Woodhouse wrote: From: David Woodhouse The vmclock device addresses the problem of live migration with precision clocks. The tolerances of a hardware counter (e.g. TSC) are typically around ±50PPM. A guest will use NTP/PTP/PPS to discipline that counter against an extern

[PATCH v6] ptp: Add support for the AMZNC10C 'vmclock' device

2024-09-20 Thread David Woodhouse
From: David Woodhouse The vmclock device addresses the problem of live migration with precision clocks. The tolerances of a hardware counter (e.g. TSC) are typically around ±50PPM. A guest will use NTP/PTP/PPS to discipline that counter against an external source of 'real' time, and track the pre