| Message ID | 1562917140-12035-1-git-send-email-wanpengli@tencent.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [RESEND,1/2] KVM: LAPIC: Add pv ipi tracepoint | expand |
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 >
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