From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B125ECE7B19 for ; Thu, 28 Sep 2023 10:38:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231150AbjI1KiY (ORCPT ); Thu, 28 Sep 2023 06:38:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54326 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231387AbjI1KiV (ORCPT ); Thu, 28 Sep 2023 06:38:21 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 76260196 for ; Thu, 28 Sep 2023 03:36:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1695897417; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=mH5orp7ABtmUs7zOrlSxQ0vVKe4+Un5z4DZRGlQ7qEA=; b=D7HAt4gt4m+YkD07shpcnR50xpYjgOMlJ6WRolQaCZt4+xv5OTy5JJplscWxNcKVddeYsv 7m/e6GWELpLwBA/PgUBQGaqnuf7Yvo6XQpC7o7isMh1KefeZEYCqHkN377JlyAU1SW0T8G fhoViOEFvZggqzLOGme+LHnlvpyKLZw= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-592-zBDkmNSLPdSBgyn-12RpDg-1; Thu, 28 Sep 2023 06:36:52 -0400 X-MC-Unique: zBDkmNSLPdSBgyn-12RpDg-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 241DF185A797; Thu, 28 Sep 2023 10:36:52 +0000 (UTC) Received: from localhost.localdomain (unknown [10.45.226.141]) by smtp.corp.redhat.com (Postfix) with ESMTP id CFD8C492B16; Thu, 28 Sep 2023 10:36:49 +0000 (UTC) From: Maxim Levitsky To: kvm@vger.kernel.org Cc: Thomas Gleixner , "H. Peter Anvin" , Sean Christopherson , Ingo Molnar , Paolo Bonzini , Borislav Petkov , linux-kernel@vger.kernel.org, x86@kernel.org, Dave Hansen , Maxim Levitsky Subject: [PATCH v3 3/4] KVM: x86: add information about pending requests to kvm_exit tracepoint Date: Thu, 28 Sep 2023 13:36:39 +0300 Message-Id: <20230928103640.78453-4-mlevitsk@redhat.com> In-Reply-To: <20230928103640.78453-1-mlevitsk@redhat.com> References: <20230928103640.78453-1-mlevitsk@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.9 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This allows to gather information on how often kvm interrupts vCPUs due to specific requests. Signed-off-by: Maxim Levitsky --- 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) \ ) /* -- 2.26.3