From: Amit Tomar <[email protected]> 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 <[email protected]> --- 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 _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
