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From: Thomas Gleixner <tglx@kernel.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: David Woodhouse <dwmw2@infradead.org>,
	Miroslav Lichvar <mlichvar@redhat.com>,
	John Stultz <jstultz@google.com>, Stephen Boyd <sboyd@kernel.org>,
	Anna-Maria Behnsen <anna-maria@linutronix.de>,
	Frederic Weisbecker <frederic@kernel.org>,
	thomas.weissschuh@linutronix.de,
	Arthur Kiyanovski <akiyano@amazon.com>,
	Vincent Donnefort <vdonnefort@google.com>,
	Marc Zyngier <maz@kernel.org>,
	Oliver Upton <oliver.upton@linux.dev>,
	kvmarm@lists.linux.dev, Rodolfo Giometti <giometti@enneenne.com>,
	Oliver Upton <oupton@kernel.org>,
	Richard Cochran <richardcochran@gmail.com>,
	netdev@vger.kernel.org, Takashi Iwai <tiwai@suse.com>,
	Miri Korenblit <miriam.rachel.korenblit@intel.com>,
	Johannes Berg <johannes.berg@intel.com>,
	Jacob Keller <jacob.e.keller@intel.com>,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	Saeed Mahameed <saeedm@nvidia.com>,
	Peter Hilber <peter.hilber@oss.qualcomm.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	virtualization@lists.linux.dev, linux-wireless@vger.kernel.org,
	linux-sound@vger.kernel.org
Subject: [patch 05/24] KVM: arm64: Use ktime_get_snapshot_id() to retrieve CLOCK_BOOTTIME
Date: Tue, 26 May 2026 19:13:53 +0200	[thread overview]
Message-ID: <20260526171223.070087856@kernel.org> (raw)
In-Reply-To: 20260526165826.392227559@kernel.org

ktime_get_snapshot() is replaced by ktime_get_snapshot_id() which allows to
request a particular CLOCK ID to be captured along with the clocksource
counter.

Convert the tracing mechanism over and use the new
system_time_snapshot::sys field, which holds the system timestamp selected
by the CLOCK ID argument.

No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Cc: Vincent Donnefort <vdonnefort@google.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: kvmarm@lists.linux.dev
---
 arch/arm64/kvm/hyp_trace.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/arch/arm64/kvm/hyp_trace.c
+++ b/arch/arm64/kvm/hyp_trace.c
@@ -51,8 +51,8 @@ static void __hyp_clock_work(struct work
 
 	hyp_clock = container_of(dwork, struct hyp_trace_clock, work);
 
-	ktime_get_snapshot(&snap);
-	boot = ktime_to_ns(snap.boot);
+	ktime_get_snapshot_id(&snap, CLOCK_BOOTTIME);
+	boot = ktime_to_ns(snap.sys);
 
 	delta_boot = boot - hyp_clock->boot;
 	delta_cycles = snap.cycles - hyp_clock->cycles;
@@ -118,9 +118,9 @@ static void hyp_trace_clock_enable(struc
 		hyp_clock->running = false;
 	}
 
-	ktime_get_snapshot(&snap);
+	ktime_get_snapshot_id(&snap, CLOCK_BOOTTIME);
 
-	hyp_clock->boot = ktime_to_ns(snap.boot);
+	hyp_clock->boot = ktime_to_ns(snap.sys);
 	hyp_clock->cycles = snap.cycles;
 	hyp_clock->mult = 0;
 


  parent reply	other threads:[~2026-05-26 17:13 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-26 17:13 [patch 00/24] timekeeping/ptp: Expand snapshot functionality Thomas Gleixner
2026-05-26 17:13 ` [patch 01/24] timekeeping: Provide ktime_get_snapshot_id() Thomas Gleixner
2026-05-26 21:41   ` Jacob Keller
2026-05-26 23:39   ` David Woodhouse
2026-05-26 17:13 ` [patch 02/24] timekeeping: Use system_time_snapshot::sys instead of ::real Thomas Gleixner
2026-05-26 23:40   ` [PATCH 2/24] " David Woodhouse
2026-05-26 17:13 ` [patch 03/24] pps: generators: Use ktime_get_real_ts64() instead of ktime_get_snapshot() Thomas Gleixner
2026-05-26 23:42   ` [PATCH 3/24] " David Woodhouse
2026-05-26 17:13 ` [patch 04/24] pps: Convert to ktime_get_snapshot_id() Thomas Gleixner
2026-05-26 23:42   ` [PATCH 4/24] " David Woodhouse
2026-05-26 17:13 ` Thomas Gleixner [this message]
2026-05-26 23:42   ` [PATCH 5/24] KVM: arm64: Use ktime_get_snapshot_id() to retrieve CLOCK_BOOTTIME David Woodhouse
2026-05-26 17:13 ` [patch 06/24] KVM: arm64: Use ktime_get_snapshot_id() to snapshot CLOCK_REALTIME Thomas Gleixner
2026-05-26 23:43   ` [PATCH 6/24] " David Woodhouse
2026-05-26 17:14 ` [patch 07/24] ptp: ptp_vmclock: Convert to ktime_get_snapshot_id() Thomas Gleixner
2026-05-26 23:43   ` [PATCH 7/24] " David Woodhouse
2026-05-26 17:14 ` [patch 08/24] timekeeping: Remove system_time_snapshot::real/boot Thomas Gleixner
2026-05-26 21:49   ` Jacob Keller
2026-05-26 21:52     ` Jacob Keller
2026-05-26 23:44   ` [PATCH 8/24] " David Woodhouse
2026-05-26 17:14 ` [patch 09/24] timekeeping: Add CLOCK_AUX support for ktime_get_snapshot_id() Thomas Gleixner
2026-05-26 23:44   ` [PATCH 9/24] " David Woodhouse
2026-05-26 17:14 ` [patch 10/24] timekeeping: Add system_counterval_t to struct system_device_crosststamp Thomas Gleixner
2026-05-26 23:45   ` [PATCH " David Woodhouse
2026-05-26 17:14 ` [patch 11/24] timekeeping: Add CLOCK ID to system_device_crosststamp Thomas Gleixner
2026-05-26 23:46   ` [PATCH " David Woodhouse
2026-05-26 17:14 ` [patch 12/24] wifi: iwlwifi: Adopt PTP cross timestamps to core changes Thomas Gleixner
2026-05-26 23:47   ` [PATCH " David Woodhouse
2026-05-26 17:14 ` [patch 13/24] ice/ptp: Use provided clock ID for history snapshot Thomas Gleixner
2026-05-26 21:51   ` Jacob Keller
2026-05-26 23:49   ` [PATCH " David Woodhouse
2026-05-26 17:14 ` [patch 14/24] igc: " Thomas Gleixner
2026-05-26 21:51   ` Jacob Keller
2026-05-26 23:50   ` [PATCH " David Woodhouse
2026-05-26 17:14 ` [patch 15/24] net/mlx5: " Thomas Gleixner
2026-05-26 17:14 ` [patch 16/24] virtio_rtc: " Thomas Gleixner
2026-05-26 17:14 ` [patch 17/24] timekeeping: Remove ktime_get_snapshot() Thomas Gleixner
2026-05-26 17:14 ` [patch 18/24] timekeeping: Prepare for cross timestamps on arbitrary clock IDs Thomas Gleixner
2026-05-26 17:15 ` [patch 19/24] ptp: Use system_device_crosststamp::sys_systime Thomas Gleixner
2026-05-26 17:15 ` [patch 20/24] wifi: iwlwifi: " Thomas Gleixner
2026-05-26 17:15 ` [patch 21/24] ALSA: hda/common: " Thomas Gleixner
2026-05-26 17:15 ` [patch 22/24] timekeeping: Remove system_device_crosststamp::sys_realtime Thomas Gleixner
2026-05-26 17:15 ` [patch 23/24] timekeeping: Add support for AUX clock cross timestamping Thomas Gleixner
2026-05-26 17:15 ` [patch 24/24] ptp: Switch to ktime_get_snapshot_id() for pre/post timestamps Thomas Gleixner
2026-05-26 21:56 ` [patch 00/24] timekeeping/ptp: Expand snapshot functionality Jacob Keller

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