Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755812AbbHYLg7 (ORCPT ); Tue, 25 Aug 2015 07:36:59 -0400 Received: from mx1.redhat.com ([209.132.183.28]:57574 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754878AbbHYLg5 (ORCPT ); Tue, 25 Aug 2015 07:36:57 -0400 Date: Tue, 25 Aug 2015 14:36:54 +0300 From: "Michael S. Tsirkin" To: Jason Wang Cc: gleb@kernel.org, pbonzini@redhat.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, cornelia.huck@de.ibm.com Subject: Re: [PATCH V3 3/3] kvm: add tracepoint for fast mmio Message-ID: <20150825143640-mutt-send-email-mst@redhat.com> References: <1440493548-2971-1-git-send-email-jasowang@redhat.com> <1440493548-2971-3-git-send-email-jasowang@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1440493548-2971-3-git-send-email-jasowang@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2160 Lines: 73 On Tue, Aug 25, 2015 at 05:05:48PM +0800, Jason Wang wrote: > Cc: Gleb Natapov > Cc: Paolo Bonzini > Cc: Michael S. Tsirkin > Signed-off-by: Jason Wang > --- > arch/x86/kvm/trace.h | 17 +++++++++++++++++ > arch/x86/kvm/vmx.c | 1 + > arch/x86/kvm/x86.c | 1 + > 3 files changed, 19 insertions(+) > > diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h > index 4eae7c3..2d4e81a 100644 > --- a/arch/x86/kvm/trace.h > +++ b/arch/x86/kvm/trace.h > @@ -128,6 +128,23 @@ TRACE_EVENT(kvm_pio, > __entry->count > 1 ? "(...)" : "") > ); > > +TRACE_EVENT(kvm_fast_mmio, > + TP_PROTO(u64 gpa), > + TP_ARGS(gpa), > + > + TP_STRUCT__entry( > + __field(u64, gpa) > + ), > + > + TP_fast_assign( > + __entry->gpa = gpa; > + ), > + > + TP_printk("fast mmio at gpa 0x%llx", __entry->gpa) > +); > + > + > + don't add multiple empty lines pls. > /* > * Tracepoint for cpuid. > */ > diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c > index 83b7b5c..a55d279 100644 > --- a/arch/x86/kvm/vmx.c > +++ b/arch/x86/kvm/vmx.c > @@ -5831,6 +5831,7 @@ static int handle_ept_misconfig(struct kvm_vcpu *vcpu) > gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS); > if (!kvm_io_bus_write(vcpu, KVM_FAST_MMIO_BUS, gpa, 0, NULL)) { > skip_emulated_instruction(vcpu); > + trace_kvm_fast_mmio(gpa); > return 1; > } > > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c > index 8f0f6ec..36cf78e 100644 > --- a/arch/x86/kvm/x86.c > +++ b/arch/x86/kvm/x86.c > @@ -8254,6 +8254,7 @@ bool kvm_arch_has_noncoherent_dma(struct kvm *kvm) > EXPORT_SYMBOL_GPL(kvm_arch_has_noncoherent_dma); > > EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_exit); > +EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_fast_mmio); > EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_inj_virq); > EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_page_fault); > EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_msr); > -- > 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/