[PATCH RESEND 1/2] KVM: LAPIC: Add pv ipi tracepoint

[Wanpeng Li]

From: Wanpeng Li <wanpen...@tencent.com>

Add pv ipi tracepoint.

Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Signed-off-by: Wanpeng Li <wanpen...@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