linux-kernel - Re: [RFC PATCH v4] ptp: Add vDSO-style vmclock support

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Message-ID: <2e875592-f6e7-4694-8f51-655d0b9a2988@opensynergy.com>
Date: Tue, 16 Jul 2024 13:54:36 +0200
From: Peter Hilber <peter.hilber@...nsynergy.com>
To: David Woodhouse <dwmw2@...radead.org>, linux-kernel@...r.kernel.org,
 virtualization@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
 linux-rtc@...r.kernel.org, "Ridoux, Julien" <ridouxj@...zon.com>,
 virtio-dev@...ts.linux.dev, "Luu, Ryan" <rluu@...zon.com>,
 "Chashper, David" <chashper@...zon.com>
Cc: "Christopher S . Hall" <christopher.s.hall@...el.com>,
 Jason Wang <jasowang@...hat.com>, John Stultz <jstultz@...gle.com>,
 "Michael S . Tsirkin" <mst@...hat.com>, netdev@...r.kernel.org,
 Richard Cochran <richardcochran@...il.com>, Stephen Boyd <sboyd@...nel.org>,
 Thomas Gleixner <tglx@...utronix.de>, Xuan Zhuo
 <xuanzhuo@...ux.alibaba.com>, Marc Zyngier <maz@...nel.org>,
 Mark Rutland <mark.rutland@....com>,
 Daniel Lezcano <daniel.lezcano@...aro.org>,
 Alessandro Zummo <a.zummo@...ertech.it>,
 Alexandre Belloni <alexandre.belloni@...tlin.com>,
 qemu-devel <qemu-devel@...gnu.org>, Simon Horman <horms@...nel.org>
Subject: Re: [RFC PATCH v4] ptp: Add vDSO-style vmclock support

On 08.07.24 11:27, David Woodhouse wrote:
> +
> +	/*
> +	 * Time according to time_type field above.
> +	 */
> +	uint64_t time_sec;		/* Seconds since time_type epoch */
> +	uint64_t time_frac_sec;		/* (seconds >> 64) */
> +	uint64_t time_esterror_picosec;	/* (± picoseconds) */
> +	uint64_t time_maxerror_picosec;	/* (± picoseconds) */

Is this unsigned or signed?