From: David Woodhouse <dwmw2@infradead.org>
To: Peter Hilber <peter.hilber@opensynergy.com>,
linux-kernel@vger.kernel.org, virtualization@lists.linux.dev,
virtio-dev@lists.oasis-open.org,
linux-arm-kernel@lists.infradead.org
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
Xuan Zhuo <xuanzhuo@linux.alibaba.com>,
Marc Zyngier <maz@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [RFC PATCH v3 6/7] virtio_rtc: Add Arm Generic Timer cross-timestamping
Date: Sat, 15 Jun 2024 08:50:53 +0100 [thread overview]
Message-ID: <e410d65754ba6a11ad7f74b27dc28d9a25d8c82e.camel@infradead.org> (raw)
In-Reply-To: <20231218073849.35294-7-peter.hilber@opensynergy.com>
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On Mon, 2023-12-18 at 08:38 +0100, Peter Hilber wrote:
>
> +int viortc_hw_xtstamp_params(u16 *hw_counter, enum clocksource_ids *cs_id)
> +{
> + *hw_counter = VIRTIO_RTC_COUNTER_ARM_VIRT;
Hm, but what if it isn't? I think you need to put this in
drivers/clocksource/arm_arch_timer.c where it can do something like
kvm_arch_ptp_get_crosststamp() does to decide:
if (arch_timer_uses_ppi == ARCH_TIMER_VIRT_PPI)
ptp_counter = KVM_PTP_VIRT_COUNTER;
else
ptp_counter = KVM_PTP_PHYS_COUNTER;
> + *cs_id = CSID_ARM_ARCH_COUNTER;
> +
> + return 0;
> +}
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next prev parent reply other threads:[~2024-06-15 7:51 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-18 7:38 [RFC PATCH v3 0/7] Add virtio_rtc module and related changes Peter Hilber
2023-12-18 7:38 ` [RFC PATCH v3 4/7] virtio_rtc: Add module and driver core Peter Hilber
2023-12-18 7:38 ` [RFC PATCH v3 5/7] virtio_rtc: Add PTP clocks Peter Hilber
2024-06-15 8:01 ` David Woodhouse
2024-06-20 12:01 ` Peter Hilber
2024-06-20 14:33 ` David Woodhouse
2023-12-18 7:38 ` [RFC PATCH v3 6/7] virtio_rtc: Add Arm Generic Timer cross-timestamping Peter Hilber
2024-06-15 7:50 ` David Woodhouse [this message]
2024-06-20 12:06 ` Peter Hilber
2024-03-07 14:02 ` [RFC PATCH v3 0/7] Add virtio_rtc module and related changes David Woodhouse
2024-03-08 10:32 ` Peter Hilber
2024-03-08 12:33 ` David Woodhouse
2024-03-11 18:24 ` Peter Hilber
2024-03-12 17:15 ` David Woodhouse
2024-03-13 9:45 ` Peter Hilber
2024-03-13 11:18 ` Alexandre Belloni
2024-03-13 12:29 ` David Woodhouse
2024-03-13 12:58 ` Alexandre Belloni
2024-03-13 14:06 ` David Woodhouse
2024-03-13 14:50 ` Alexandre Belloni
2024-03-13 20:12 ` Andrew Lunn
2024-03-14 9:13 ` Peter Hilber
2024-03-13 17:50 ` Peter Hilber
2024-03-13 14:15 ` Peter Hilber
2024-03-13 12:45 ` David Woodhouse
2024-03-13 17:50 ` Peter Hilber
2024-03-13 18:18 ` David Woodhouse
2024-03-14 10:13 ` Peter Hilber
2024-03-14 14:19 ` David Woodhouse
2024-03-19 13:47 ` Peter Hilber
2024-03-20 17:22 ` David Woodhouse
2024-06-15 8:40 ` David Woodhouse
2024-06-20 12:37 ` Peter Hilber
2024-06-20 16:19 ` David Woodhouse
2024-06-21 8:45 ` David Woodhouse
2024-06-25 19:01 ` [RFC PATCH v2] ptp: Add vDSO-style vmclock support David Woodhouse
2024-06-25 21:34 ` Thomas Gleixner
2024-06-25 21:48 ` David Woodhouse
2024-06-25 22:22 ` John Stultz
2024-06-26 8:32 ` David Woodhouse
2024-06-26 16:43 ` Richard Cochran
2024-06-27 13:50 ` Peter Hilber
2024-06-27 14:52 ` David Woodhouse
2024-06-28 11:33 ` Peter Hilber
2024-06-28 12:15 ` David Woodhouse
2024-06-28 16:38 ` Peter Hilber
2024-06-28 21:27 ` David Woodhouse
2024-07-01 8:57 ` David Woodhouse
2024-07-02 15:03 ` Peter Hilber
2024-07-02 16:39 ` David Woodhouse
2024-07-02 18:12 ` Peter Hilber
2024-07-02 18:40 ` David Woodhouse
2024-07-03 9:56 ` Peter Hilber
2024-07-03 10:40 ` David Woodhouse
2024-07-05 8:12 ` Peter Hilber
2024-07-05 15:02 ` David Woodhouse
2024-07-06 7:50 ` Peter Hilber
2024-06-27 16:03 ` David Woodhouse
2024-06-28 11:33 ` Peter Hilber
2024-06-28 11:41 ` David Woodhouse
2024-06-30 13:28 ` Simon Horman
2024-07-01 8:02 ` David Woodhouse
2024-07-01 15:39 ` Kees Cook
2024-07-03 8:00 ` David Woodhouse
2024-06-27 13:50 ` [RFC PATCH v3 0/7] Add virtio_rtc module and related changes Peter Hilber
2024-06-21 14:02 ` David Woodhouse
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