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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1470DC433FE for ; Sun, 31 Oct 2021 12:11:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EEFF060F4A for ; Sun, 31 Oct 2021 12:11:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232163AbhJaMOC (ORCPT ); Sun, 31 Oct 2021 08:14:02 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:61778 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232030AbhJaMNs (ORCPT ); Sun, 31 Oct 2021 08:13:48 -0400 Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 19VAbVsB020290; Sun, 31 Oct 2021 12:11:17 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : content-transfer-encoding : mime-version; s=pp1; bh=xjKMEWUCjCwCFBbsysFYeipMHaSuuxL/+UUWPBAUPVA=; b=YibWB+97y4YOzkMEeKLdRekuvKLN+goRHyiB6vEeiyzi4kC3iwSyWcUmookaPRqVI71D CWIQTHbEl71U8ERGgx6xJXCZ05Jn/ij1NmrgYY+TKQ+xnBqxt7B0FcU0o3PsdHlzeWb/ fT0pJAhAZbHdZ6gMU6UOzVKP+7rEfHdepVvwWvFCretjnBJKK4iM3OKEywRnFNWr6QZK v2KzJJE1E0iftw5/7sjByyE0+z65nNpxZGraLAFKbehAkC6vVs/Pe9NSanHRtKXKIeF8 6S+1Fr8GsGXqXnP28/NwCfRw8RvPWdqWTxreYIQINdoR8IeF0myv2vkIy9xlJvf351cG iQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 3c1r0n24uv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 31 Oct 2021 12:11:16 +0000 Received: from m0098399.ppops.net (m0098399.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 19VBx8bM010994; Sun, 31 Oct 2021 12:11:16 GMT Received: from ppma01fra.de.ibm.com (46.49.7a9f.ip4.static.sl-reverse.com [159.122.73.70]) by mx0a-001b2d01.pphosted.com with ESMTP id 3c1r0n24u2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 31 Oct 2021 12:11:16 +0000 Received: from pps.filterd (ppma01fra.de.ibm.com [127.0.0.1]) by ppma01fra.de.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 19VC9Pto022996; Sun, 31 Oct 2021 12:11:14 GMT Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by ppma01fra.de.ibm.com with ESMTP id 3c0wp9cq1b-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 31 Oct 2021 12:11:13 +0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 19VCBAn061800762 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 31 Oct 2021 12:11:10 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B1DEDA405B; Sun, 31 Oct 2021 12:11:10 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9E306A4054; Sun, 31 Oct 2021 12:11:10 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Sun, 31 Oct 2021 12:11:10 +0000 (GMT) Received: by tuxmaker.boeblingen.de.ibm.com (Postfix, from userid 25651) id 48FFDE06C2; Sun, 31 Oct 2021 13:11:10 +0100 (CET) From: Christian Borntraeger To: Paolo Bonzini Cc: KVM , Janosch Frank , Claudio Imbrenda , David Hildenbrand , linux-s390 , Christian Borntraeger , Heiko Carstens , Vasily Gorbik Subject: [GIT PULL 17/17] KVM: s390: add debug statement for diag 318 CPNC data Date: Sun, 31 Oct 2021 13:11:04 +0100 Message-Id: <20211031121104.14764-18-borntraeger@de.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211031121104.14764-1-borntraeger@de.ibm.com> References: <20211031121104.14764-1-borntraeger@de.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: cxv_cqCVsBQ_58hBk4NifLJrkW7pTRz4 X-Proofpoint-ORIG-GUID: ik2KxbL21ZxbC6Ue2AmvZgBp7MEEqwXm Content-Transfer-Encoding: 8bit X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.0.607.475 definitions=2021-10-31_03,2021-10-29_03,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 mlxlogscore=999 adultscore=0 phishscore=0 mlxscore=0 lowpriorityscore=0 malwarescore=0 impostorscore=0 clxscore=1015 spamscore=0 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2110310076 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Collin Walling The diag 318 data contains values that denote information regarding the guest's environment. Currently, it is unecessarily difficult to observe this value (either manually-inserted debug statements, gdb stepping, mem dumping etc). It's useful to observe this information to obtain an at-a-glance view of the guest's environment, so lets add a simple VCPU event that prints the CPNC to the s390dbf logs. Signed-off-by: Collin Walling Acked-by: Christian Borntraeger Link: https://lore.kernel.org/r/20211027025451.290124-1-walling@linux.ibm.com [borntraeger@de.ibm.com]: change debug level to 3 Signed-off-by: Christian Borntraeger --- arch/s390/kvm/kvm-s390.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 6482ea9139bb..c6257f625929 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -4255,6 +4255,7 @@ static void sync_regs_fmt2(struct kvm_vcpu *vcpu) if (kvm_run->kvm_dirty_regs & KVM_SYNC_DIAG318) { vcpu->arch.diag318_info.val = kvm_run->s.regs.diag318; vcpu->arch.sie_block->cpnc = vcpu->arch.diag318_info.cpnc; + VCPU_EVENT(vcpu, 3, "setting cpnc to %d", vcpu->arch.diag318_info.cpnc); } /* * If userspace sets the riccb (e.g. after migration) to a valid state, -- 2.31.1