From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759411AbZJGOcx (ORCPT ); Wed, 7 Oct 2009 10:32:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759390AbZJGOcu (ORCPT ); Wed, 7 Oct 2009 10:32:50 -0400 Received: from tx2ehsobe005.messaging.microsoft.com ([65.55.88.15]:29168 "EHLO TX2EHSOBE009.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759381AbZJGOcq (ORCPT ); Wed, 7 Oct 2009 10:32:46 -0400 X-SpamScore: 3 X-BigFish: VPS3(zzzz1202hzzz32i6bh43j65h) X-Spam-TCS-SCL: 4:0 X-FB-SS: 5, X-WSS-ID: 0KR5F10-01-FEQ-02 X-M-MSG: From: Joerg Roedel To: Avi Kivity , Marcelo Tosatti CC: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Joerg Roedel Subject: [PATCH 07/10] KVM: SVM: Add tracepoint for #vmexit because intr pending Date: Wed, 7 Oct 2009 16:31:25 +0200 Message-ID: <1254925888-13743-8-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.6.4.3 In-Reply-To: <1254925888-13743-1-git-send-email-joerg.roedel@amd.com> References: <1254925888-13743-1-git-send-email-joerg.roedel@amd.com> X-OriginalArrivalTime: 07 Oct 2009 14:31:35.0327 (UTC) FILETIME=[DF5922F0:01CA475A] MIME-Version: 1.0 Content-Type: text/plain X-Reverse-DNS: unknown Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds a special tracepoint for the event that a nested #vmexit is injected because kvm wants to inject an interrupt into the guest. Signed-off-by: Joerg Roedel --- arch/x86/kvm/svm.c | 1 + arch/x86/kvm/trace.h | 18 ++++++++++++++++++ arch/x86/kvm/x86.c | 1 + 3 files changed, 20 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 4de75e3..a03dba1 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1387,6 +1387,7 @@ static inline int nested_svm_intr(struct vcpu_svm *svm) * the #vmexit here. */ set_bit(KVM_REQ_VMEXIT, &svm->vcpu.requests); + trace_kvm_nested_intr_vmexit(svm->vmcb->save.rip); return 1; } diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index a00b235..20248a1 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -451,6 +451,24 @@ TRACE_EVENT(kvm_nested_vmexit_inject, __entry->exit_info1, __entry->exit_info2, __entry->exit_int_info, __entry->exit_int_info_err) ); + +/* + * Tracepoint for nested #vmexit because of interrupt pending + */ +TRACE_EVENT(kvm_nested_intr_vmexit, + TP_PROTO(__u64 rip), + TP_ARGS(rip), + + TP_STRUCT__entry( + __field( __u64, rip ) + ), + + TP_fast_assign( + __entry->rip = rip + ), + + TP_printk("rip=0x%016llx\n", __entry->rip) +); #endif /* _TRACE_KVM_H */ /* This part must be outside protection */ diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c7ea2d8..e0a8517 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5000,3 +5000,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_cr); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_nested_vmrun); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_nested_vmexit); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_nested_vmexit_inject); +EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_nested_intr_vmexit); -- 1.6.4.3