[patch 06/24] KVM: arm64: Use ktime_get_snapshot_id() to snapshot CLOCK_REALTIME

From: Thomas Gleixner

Date: Tue May 26 2026 - 13:18:05 EST


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 usage in kvm_get_ptp_time() 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@xxxxxxxxxx>
Cc: Marc Zyngier <maz@xxxxxxxxxx>
Cc: Oliver Upton <oupton@xxxxxxxxxx>
Cc: kvmarm@xxxxxxxxxxxxxxx
---
arch/arm64/kvm/hypercalls.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

--- a/arch/arm64/kvm/hypercalls.c
+++ b/arch/arm64/kvm/hypercalls.c
@@ -28,7 +28,7 @@ static void kvm_ptp_get_time(struct kvm_
* system time and counter value must captured at the same
* time to keep consistency and precision.
*/
- ktime_get_snapshot(&systime_snapshot);
+ ktime_get_snapshot_id(&systime_snapshot, CLOCK_REALTIME);

/*
* This is only valid if the current clocksource is the
@@ -61,8 +61,8 @@ static void kvm_ptp_get_time(struct kvm_
* in the future (about 292 years from 1970, and at that stage
* nobody will give a damn about it).
*/
- val[0] = upper_32_bits(systime_snapshot.real);
- val[1] = lower_32_bits(systime_snapshot.real);
+ val[0] = upper_32_bits(systime_snapshot.sys);
+ val[1] = lower_32_bits(systime_snapshot.sys);
val[2] = upper_32_bits(cycles);
val[3] = lower_32_bits(cycles);
}