Messages in this thread | | | Date | Fri, 24 Nov 2023 17:08:41 +0100 | Subject | Re: [PATCH v3 3/4] KVM: x86: add information about pending requests to kvm_exit tracepoint | From | Paolo Bonzini <> |
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On 9/28/23 12:36, Maxim Levitsky wrote: > This allows to gather information on how often kvm interrupts vCPUs due > to specific requests. > > Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> > --- > arch/x86/kvm/trace.h | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h > index 28e8a63368cc02..e275a02a21e523 100644 > --- a/arch/x86/kvm/trace.h > +++ b/arch/x86/kvm/trace.h > @@ -316,12 +316,14 @@ TRACE_EVENT(name, \ > __field( u32, intr_info ) \ > __field( u32, error_code ) \ > __field( unsigned int, vcpu_id ) \ > + __field( u64, requests ) \ > ), \ > \ > TP_fast_assign( \ > __entry->guest_rip = kvm_rip_read(vcpu); \ > __entry->isa = isa; \ > __entry->vcpu_id = vcpu->vcpu_id; \ > + __entry->requests = READ_ONCE(vcpu->requests); \ > static_call(kvm_x86_get_exit_info)(vcpu, \ > &__entry->exit_reason, \ > &__entry->info1, \ > @@ -331,11 +333,13 @@ TRACE_EVENT(name, \ > ), \ > \ > TP_printk("vcpu %u reason %s%s%s rip 0x%lx info1 0x%016llx " \ > - "info2 0x%016llx intr_info 0x%08x error_code 0x%08x", \ > + "info2 0x%016llx intr_info 0x%08x error_code 0x%08x " \ > + "requests 0x%016llx", \ > __entry->vcpu_id, \ > kvm_print_exit_reason(__entry->exit_reason, __entry->isa), \ > __entry->guest_rip, __entry->info1, __entry->info2, \ > - __entry->intr_info, __entry->error_code) \ > + __entry->intr_info, __entry->error_code, \ > + __entry->requests) \ > ) > > /*
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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