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KVM: arm64: Use ktime_get_snapshot_id() to snapshot CLOCK_REALTIME

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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::systime field, which holds the system timestamp
selected by the CLOCK ID argument.

No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Tested-by: Arthur Kiyanovski <akiyano@amazon.com>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://patch.msgid.link/20260529195557.225399927@kernel.org
This commit is contained in:
Thomas Gleixner 2026-05-29 22:00:12 +02:00
parent ed645be2ab
commit 744f8406a3
1 changed files with 3 additions and 3 deletions
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6
arch/arm64/kvm/hypercalls.c
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@ -28,7 +28,7 @@ static void kvm_ptp_get_time(struct kvm_vcpu *vcpu, u64 *val)
* 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(CLOCK_REALTIME, &systime_snapshot);
/*
* This is only valid if the current clocksource is the
@ -61,8 +61,8 @@ static void kvm_ptp_get_time(struct kvm_vcpu *vcpu, u64 *val)
* 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.systime);
val[1] = lower_32_bits(systime_snapshot.systime);
val[2] = upper_32_bits(cycles);
val[3] = lower_32_bits(cycles);
}