From patchwork Thu May 16 12:17:52 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiao Guangrong X-Patchwork-Id: 2577661 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id E334C3FC5A for ; Thu, 16 May 2013 12:19:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753558Ab3EPMS0 (ORCPT ); Thu, 16 May 2013 08:18:26 -0400 Received: from e28smtp07.in.ibm.com ([122.248.162.7]:59225 "EHLO e28smtp07.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753384Ab3EPMSL (ORCPT ); Thu, 16 May 2013 08:18:11 -0400 Received: from /spool/local by e28smtp07.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 16 May 2013 17:42:26 +0530 Received: from d28dlp01.in.ibm.com (9.184.220.126) by e28smtp07.in.ibm.com (192.168.1.137) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Thu, 16 May 2013 17:42:25 +0530 Received: from d28relay05.in.ibm.com (d28relay05.in.ibm.com [9.184.220.62]) by d28dlp01.in.ibm.com (Postfix) with ESMTP id 0A361E0055; Thu, 16 May 2013 17:50:35 +0530 (IST) Received: from d28av03.in.ibm.com (d28av03.in.ibm.com [9.184.220.65]) by d28relay05.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r4GCI3Cs6029694; Thu, 16 May 2013 17:48:03 +0530 Received: from d28av03.in.ibm.com (loopback [127.0.0.1]) by d28av03.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r4GCI6AS024603; Thu, 16 May 2013 22:18:07 +1000 Received: from localhost (dhcp-9-111-29-61.cn.ibm.com [9.111.29.61]) by d28av03.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id r4GCI6L1024556; Thu, 16 May 2013 22:18:06 +1000 From: Xiao Guangrong To: gleb@redhat.com Cc: avi.kivity@gmail.com, mtosatti@redhat.com, pbonzini@redhat.com, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Xiao Guangrong Subject: [PATCH v5 7/8] KVM: MMU: add tracepoint for kvm_mmu_invalidate_memslot_pages Date: Thu, 16 May 2013 20:17:52 +0800 Message-Id: <1368706673-8530-8-git-send-email-xiaoguangrong@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <1368706673-8530-1-git-send-email-xiaoguangrong@linux.vnet.ibm.com> References: <1368706673-8530-1-git-send-email-xiaoguangrong@linux.vnet.ibm.com> X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13051612-8878-0000-0000-00000722DF9D Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org It is good for debug and development Signed-off-by: Xiao Guangrong --- arch/x86/kvm/mmu.c | 2 ++ arch/x86/kvm/mmutrace.h | 23 +++++++++++++++++++++++ 2 files changed, 25 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 268b2ff..e12f431 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -4300,6 +4300,8 @@ void kvm_mmu_invalidate_memslot_pages(struct kvm *kvm, if (slot) zap_invalid_pages(kvm); + + trace_kvm_mmu_invalidate_memslot_pages(kvm, slot); spin_unlock(&kvm->mmu_lock); } diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h index 697f466..8ef3e0e 100644 --- a/arch/x86/kvm/mmutrace.h +++ b/arch/x86/kvm/mmutrace.h @@ -276,6 +276,29 @@ TRACE_EVENT( __spte_satisfied(old_spte), __spte_satisfied(new_spte) ) ); + +TRACE_EVENT( + kvm_mmu_invalidate_memslot_pages, + TP_PROTO(struct kvm *kvm, struct kvm_memory_slot *slot), + TP_ARGS(kvm, slot), + + TP_STRUCT__entry( + __field(unsigned long, mmu_valid_gen) + __field(unsigned int, mmu_used_pages) + __field(int, slot_id) + ), + + TP_fast_assign( + __entry->mmu_valid_gen = kvm->arch.mmu_valid_gen; + __entry->mmu_used_pages = kvm->arch.n_used_mmu_pages; + __entry->slot_id = slot ? slot->id : -1; + ), + + TP_printk("kvm-mmu-valid-gen %lx slot_id %d used_pages %x", + __entry->mmu_valid_gen, __entry->slot_id, + __entry->mmu_used_pages + ) +); #endif /* _TRACE_KVMMMU_H */ #undef TRACE_INCLUDE_PATH