[RESEND,1/2] KVM: LAPIC: Add pv ipi tracepoint
diff mbox series

Message ID 1562917140-12035-1-git-send-email-wanpengli@tencent.com
State New
Headers show
Series
  • [RESEND,1/2] KVM: LAPIC: Add pv ipi tracepoint
Related show

Commit Message

Wanpeng Li July 12, 2019, 7:38 a.m. UTC
From: Wanpeng Li <wanpengli@tencent.com>

Add pv ipi tracepoint.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
---
 arch/x86/kvm/lapic.c |  2 ++
 arch/x86/kvm/trace.h | 25 +++++++++++++++++++++++++
 2 files changed, 27 insertions(+)

Comments

Wanpeng Li July 22, 2019, 5:28 a.m. UTC | #1
ping,
On Fri, 12 Jul 2019 at 15:39, Wanpeng Li <kernellwp@gmail.com> wrote:
>
> From: Wanpeng Li <wanpengli@tencent.com>
>
> Add pv ipi tracepoint.
>
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> Cc: Radim Krčmář <rkrcmar@redhat.com>
> Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
> ---
>  arch/x86/kvm/lapic.c |  2 ++
>  arch/x86/kvm/trace.h | 25 +++++++++++++++++++++++++
>  2 files changed, 27 insertions(+)
>
> diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
> index 42da7eb..403ae3f 100644
> --- a/arch/x86/kvm/lapic.c
> +++ b/arch/x86/kvm/lapic.c
> @@ -562,6 +562,8 @@ int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low,
>         irq.level = (icr & APIC_INT_ASSERT) != 0;
>         irq.trig_mode = icr & APIC_INT_LEVELTRIG;
>
> +       trace_kvm_pv_send_ipi(irq.vector, min, ipi_bitmap_low, ipi_bitmap_high);
> +
>         if (icr & APIC_DEST_MASK)
>                 return -KVM_EINVAL;
>         if (icr & APIC_SHORT_MASK)
> diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
> index b5c831e..ce6ee34 100644
> --- a/arch/x86/kvm/trace.h
> +++ b/arch/x86/kvm/trace.h
> @@ -1462,6 +1462,31 @@ TRACE_EVENT(kvm_hv_send_ipi_ex,
>                   __entry->vector, __entry->format,
>                   __entry->valid_bank_mask)
>  );
> +
> +/*
> + * Tracepoints for kvm_pv_send_ipi.
> + */
> +TRACE_EVENT(kvm_pv_send_ipi,
> +       TP_PROTO(u32 vector, u32 min, unsigned long ipi_bitmap_low, unsigned long ipi_bitmap_high),
> +       TP_ARGS(vector, min, ipi_bitmap_low, ipi_bitmap_high),
> +
> +       TP_STRUCT__entry(
> +               __field(u32, vector)
> +               __field(u32, min)
> +               __field(unsigned long, ipi_bitmap_low)
> +               __field(unsigned long, ipi_bitmap_high)
> +       ),
> +
> +       TP_fast_assign(
> +               __entry->vector = vector;
> +               __entry->min = min;
> +               __entry->ipi_bitmap_low = ipi_bitmap_low;
> +               __entry->ipi_bitmap_high = ipi_bitmap_high;
> +       ),
> +
> +       TP_printk("vector %d min 0x%x ipi_bitmap_low 0x%lx ipi_bitmap_high 0x%lx",
> +                 __entry->vector, __entry->min, __entry->ipi_bitmap_low, __entry->ipi_bitmap_high)
> +);
>  #endif /* _TRACE_KVM_H */
>
>  #undef TRACE_INCLUDE_PATH
> --
> 2.7.4
>

Patch
diff mbox series

diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 42da7eb..403ae3f 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -562,6 +562,8 @@  int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low,
 	irq.level = (icr & APIC_INT_ASSERT) != 0;
 	irq.trig_mode = icr & APIC_INT_LEVELTRIG;
 
+	trace_kvm_pv_send_ipi(irq.vector, min, ipi_bitmap_low, ipi_bitmap_high);
+
 	if (icr & APIC_DEST_MASK)
 		return -KVM_EINVAL;
 	if (icr & APIC_SHORT_MASK)
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index b5c831e..ce6ee34 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -1462,6 +1462,31 @@  TRACE_EVENT(kvm_hv_send_ipi_ex,
 		  __entry->vector, __entry->format,
 		  __entry->valid_bank_mask)
 );
+
+/*
+ * Tracepoints for kvm_pv_send_ipi.
+ */
+TRACE_EVENT(kvm_pv_send_ipi,
+	TP_PROTO(u32 vector, u32 min, unsigned long ipi_bitmap_low, unsigned long ipi_bitmap_high),
+	TP_ARGS(vector, min, ipi_bitmap_low, ipi_bitmap_high),
+
+	TP_STRUCT__entry(
+		__field(u32, vector)
+		__field(u32, min)
+		__field(unsigned long, ipi_bitmap_low)
+		__field(unsigned long, ipi_bitmap_high)
+	),
+
+	TP_fast_assign(
+		__entry->vector = vector;
+		__entry->min = min;
+		__entry->ipi_bitmap_low = ipi_bitmap_low;
+		__entry->ipi_bitmap_high = ipi_bitmap_high;
+	),
+
+	TP_printk("vector %d min 0x%x ipi_bitmap_low 0x%lx ipi_bitmap_high 0x%lx",
+		  __entry->vector, __entry->min, __entry->ipi_bitmap_low, __entry->ipi_bitmap_high)
+);
 #endif /* _TRACE_KVM_H */
 
 #undef TRACE_INCLUDE_PATH