From: Amit Tomar <amittomer25@xxxxxxxxx>
This provides an easy access to guest's CVTVOFF value, somewhat
similar to how x86 outputs TSC offset value.
Signed-off-by: Amit Singh Tomar <amittomer25@xxxxxxxxx>
---
virt/kvm/arm/arch_timer.c | 1 +
virt/kvm/arm/trace.h | 15 +++++++++++++++
2 files changed, 16 insertions(+)
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 69bca18..b0800fe 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -466,4 +466,5 @@ void kvm_timer_enable(struct kvm *kvm)
void kvm_timer_init(struct kvm *kvm)
{
kvm->arch.timer.cntvoff = kvm_phys_timer_read();
+ trace_kvm_timer_init(kvm->arch.timer.cntvoff);
}
diff --git a/virt/kvm/arm/trace.h b/virt/kvm/arm/trace.h
index 37d8b98..c7e1c2f 100644
--- a/virt/kvm/arm/trace.h
+++ b/virt/kvm/arm/trace.h
@@ -52,6 +52,21 @@ TRACE_EVENT(kvm_timer_update_irq,
__entry->vcpu_id, __entry->irq, __entry->level)
);
+TRACE_EVENT(kvm_timer_init,
+ TP_PROTO(unsigned long long cntvoff),
+ TP_ARGS(cntvoff),
+
+ TP_STRUCT__entry(
+ __field( unsigned long long, cntvoff)
+ ),
+
+ TP_fast_assign(
+ __entry->cntvoff = cntvoff;
+ ),
+
+ TP_printk("CNTVOFF: %llx", __entry->cntvoff)
+);
+
#endif /* _TRACE_KVM_H */
#undef TRACE_INCLUDE_PATH
--
1.7.9.5
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