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Groups > linux.kernel > #1310321
| From | Marc Zyngier <marc.zyngier@arm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3/3] KVM: arm/arm64: timer: Switch to CLOCK_MONOTONIC_RAW |
| Date | 2016-01-15 18:50 +0100 |
| Message-ID | <qRgFB-W7-35@gated-at.bofh.it> (permalink) |
| References | <qRgFA-W7-21@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
In order to avoid NTP messing with the guest timer behind our back,
use the new and improved monotonic raw version of the hrtimers.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
virt/kvm/arm/arch_timer.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 69bca18..97c5815 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -48,7 +48,7 @@ static bool timer_is_armed(struct arch_timer_cpu *timer)
static void timer_arm(struct arch_timer_cpu *timer, u64 ns)
{
timer->armed = true;
- hrtimer_start(&timer->timer, ktime_add_ns(ktime_get(), ns),
+ hrtimer_start(&timer->timer, ktime_add_ns(ktime_get_raw(), ns),
HRTIMER_MODE_ABS);
}
@@ -308,7 +308,7 @@ void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu)
struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
INIT_WORK(&timer->expired, kvm_timer_inject_irq_work);
- hrtimer_init(&timer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
+ hrtimer_init(&timer->timer, CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
timer->timer.function = kvm_timer_expire;
}
--
2.1.4
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[PATCH 3/3] KVM: arm/arm64: timer: Switch to CLOCK_MONOTONIC_RAW Marc Zyngier <marc.zyngier@arm.com> - 2016-01-15 18:50 +0100 [tip:timers/core] KVM: arm/arm64: timer: Switch to CLOCK_MONOTONIC_RAW tip-bot for Marc Zyngier <tipbot@zytor.com> - 2016-01-27 12:50 +0100
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