[patch V2 05/25] KVM: arm64: Use ktime_get_snapshot_id() to retrieve CLOCK_BOOTTIME
From: Thomas Gleixner
Date: Fri May 29 2026 - 16:02:22 EST
From: Thomas Gleixner <tglx@xxxxxxxxxx>
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::systime field, which holds the system timestamp
selected by the CLOCK ID argument.
No functional change intended.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxx>
Tested-by: Arthur Kiyanovski <akiyano@xxxxxxxxxx>
Reviewed-by: David Woodhouse <dwmw@xxxxxxxxxxxx>
Reviewed-by: Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
Reviewed-by: Jacob Keller <jacob.e.keller@xxxxxxxxx>
Acked-by: Marc Zyngier <maz@xxxxxxxxxx>
Acked-by: Vincent Donnefort <vdonnefort@xxxxxxxxxx>
---
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(CLOCK_BOOTTIME, &snap);
+ boot = ktime_to_ns(snap.systime);
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.systime);
hyp_clock->cycles = snap.cycles;
hyp_clock->mult = 0;