From patchwork Tue Oct 11 15:14:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nico Boehr X-Patchwork-Id: 13004129 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 254AFC433FE for ; Tue, 11 Oct 2022 15:59:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230113AbiJKP7e (ORCPT ); Tue, 11 Oct 2022 11:59:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50884 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230102AbiJKP7c (ORCPT ); Tue, 11 Oct 2022 11:59:32 -0400 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 12EE933A09 for ; Tue, 11 Oct 2022 08:59:31 -0700 (PDT) Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 29BEiQEi024070 for ; Tue, 11 Oct 2022 15:14:39 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 : mime-version : content-transfer-encoding; s=pp1; bh=wZU5mE6ovOVdBPSp6OpGmyuj3fXZ0OphGglmrDtJApk=; b=ZNkZ2EjENzs/rdMdSmMmk7eHqJXo6jy8F90jR/mBB3FgA66H9+/5HiG4JJAJ4CJFFQEm 3ZVe3ChPpc04/eZAKvIQVtv1dV4NEQ5CFl1ySSu6cgoTvJEHp7kVFdz4NppnJtw1+4RE HXu9GCs0F/g8iJ6woLSHLeVDY5/+80+eqrBslXvHhgPN55vbOOQzpNI/sMrFyMB6XYE1 bcdTT5VMLwJ9lK6ZdMpTXSIv0ewuqWQct2Ya58rnmwQzvC+KreICF2GJ0e+fIob2O+O6 Za9TT6arlRKY32y4oG/IGqj0A6t4Mr/kyp4Ytt9ul4EWCZu2sAO8kRBaLNz8pk9VhAGc +Q== Received: from ppma04ams.nl.ibm.com (63.31.33a9.ip4.static.sl-reverse.com [169.51.49.99]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3k54d0w43x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 11 Oct 2022 15:14:39 +0000 Received: from pps.filterd (ppma04ams.nl.ibm.com [127.0.0.1]) by ppma04ams.nl.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 29BF6bIn013020 for ; Tue, 11 Oct 2022 15:14:37 GMT Received: from b06cxnps4074.portsmouth.uk.ibm.com (d06relay11.portsmouth.uk.ibm.com [9.149.109.196]) by ppma04ams.nl.ibm.com with ESMTP id 3k30u9cn34-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 11 Oct 2022 15:14:37 +0000 Received: from d06av24.portsmouth.uk.ibm.com (d06av24.portsmouth.uk.ibm.com [9.149.105.60]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 29BFEYqu52953574 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 11 Oct 2022 15:14:34 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 82B5A42045; Tue, 11 Oct 2022 15:14:34 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4C1AD42041; Tue, 11 Oct 2022 15:14:34 +0000 (GMT) Received: from a46lp57.lnxne.boe (unknown [9.152.108.100]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 11 Oct 2022 15:14:34 +0000 (GMT) From: Nico Boehr To: kvm@vger.kernel.org Cc: frankja@linux.ibm.com, imbrenda@linux.ibm.com, borntraeger@linux.ibm.com Subject: [kvm-unit-tests PATCH v2 2/2] s390x: add migration TOD clock test Date: Tue, 11 Oct 2022 17:14:33 +0200 Message-Id: <20221011151433.886294-3-nrb@linux.ibm.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20221011151433.886294-1-nrb@linux.ibm.com> References: <20221011151433.886294-1-nrb@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 67a0nUAJd02QpBv3hcQFEWOurYjQAlCe X-Proofpoint-ORIG-GUID: 67a0nUAJd02QpBv3hcQFEWOurYjQAlCe X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-10-11_08,2022-10-11_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxscore=0 spamscore=0 mlxlogscore=999 phishscore=0 priorityscore=1501 impostorscore=0 bulkscore=0 adultscore=0 suspectscore=0 lowpriorityscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2210110086 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On migration, we expect the guest clock value to be preserved. Add a test to verify this: - advance the guest TOD by much more than we need to migrate - migrate the guest - get the guest TOD After migration, assert the guest TOD value is at least the value we set before migration. Signed-off-by: Nico Boehr --- s390x/Makefile | 1 + s390x/migration-sck.c | 44 +++++++++++++++++++++++++++++++++++++++++++ s390x/unittests.cfg | 4 ++++ 3 files changed, 49 insertions(+) create mode 100644 s390x/migration-sck.c diff --git a/s390x/Makefile b/s390x/Makefile index 649486f2d4a0..fba09bc2df3a 100644 --- a/s390x/Makefile +++ b/s390x/Makefile @@ -36,6 +36,7 @@ tests += $(TEST_DIR)/migration-cmm.elf tests += $(TEST_DIR)/migration-skey.elf tests += $(TEST_DIR)/panic-loop-extint.elf tests += $(TEST_DIR)/panic-loop-pgm.elf +tests += $(TEST_DIR)/migration-sck.elf pv-tests += $(TEST_DIR)/pv-diags.elf diff --git a/s390x/migration-sck.c b/s390x/migration-sck.c new file mode 100644 index 000000000000..286a693b4858 --- /dev/null +++ b/s390x/migration-sck.c @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * SET CLOCK migration tests + * + * Copyright IBM Corp. 2022 + * + * Authors: + * Nico Boehr + */ + +#include +#include + +static void test_sck_migration(void) +{ + uint64_t now_before_set = 0, now_after_migration, time_to_set, time_to_advance; + int cc; + + stckf(&now_before_set); + + /* Advance the clock by a lot more than we might ever need to migrate (600s) */ + time_to_advance = (600ULL * 1000000) << STCK_SHIFT_US; + time_to_set = now_before_set + time_to_advance; + + cc = sck(&time_to_set); + report(!cc, "setting clock succeeded"); + + puts("Please migrate me, then press return\n"); + (void)getchar(); + + cc = stckf(&now_after_migration); + report(!cc, "clock still set"); + + report(now_after_migration >= time_to_set, "TOD clock value preserved"); +} + +int main(void) +{ + report_prefix_push("migration-sck"); + + test_sck_migration(); + report_prefix_pop(); + return report_summary(); +} diff --git a/s390x/unittests.cfg b/s390x/unittests.cfg index f9f102abfa89..2c04ae7c7c15 100644 --- a/s390x/unittests.cfg +++ b/s390x/unittests.cfg @@ -197,3 +197,7 @@ file = panic-loop-pgm.elf groups = panic accel = kvm timeout = 5 + +[migration-sck] +file = migration-sck.elf +groups = migration