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 2E6A5C433EF for ; Thu, 12 May 2022 13:42:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354536AbiELNmm (ORCPT ); Thu, 12 May 2022 09:42:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57156 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354531AbiELNml (ORCPT ); Thu, 12 May 2022 09:42:41 -0400 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E418A5DE40; Thu, 12 May 2022 06:42:40 -0700 (PDT) Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 24CD0ffJ003817; Thu, 12 May 2022 13:42:40 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=o/oadjg0hpWL9ly1/xwx2LKIszNBdUCQMsCQr530u/w=; b=VA5tHPK4gE2bKLLlThu2INWqIpkz3OIx9NvE6sXQcMb0UtOp0AOgZXUoUwpYDhcSZ9Le JTKx5IIEE6xqxlRx+aX2bTVhdzRkUQXORhdCR4S3JveNKWzfYHqp9Qt1fMfOTTKyOhIF 0/ACLJ53V0z8pl8hR/PuJNFp3VJPMLWeTgGk2XMjK4CqmtcNbkTJbeeVIqkmceiZPiFr 3efNS/svyNBvqsUb3immn7voGm42k+2bnZsWsbCqVnb3sKNSN3LCIQHBYod2nrObs6x9 h5rsp3U1dRxFaHLN2EQU7cjJ7pCiPMyGr6jTFD6lccHEz8QvVDe4JaDj3PlmeJz/IUtu OA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3g12rds665-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 12 May 2022 13:42:40 +0000 Received: from m0098410.ppops.net (m0098410.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 24CDI3jQ028863; Thu, 12 May 2022 13:42:40 GMT Received: from ppma03ams.nl.ibm.com (62.31.33a9.ip4.static.sl-reverse.com [169.51.49.98]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3g12rds65h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 12 May 2022 13:42:39 +0000 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 24CDcl8x028571; Thu, 12 May 2022 13:42:37 GMT Received: from b06cxnps4076.portsmouth.uk.ibm.com (d06relay13.portsmouth.uk.ibm.com [9.149.109.198]) by ppma03ams.nl.ibm.com with ESMTP id 3fwgd8y4c3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 12 May 2022 13:42:37 +0000 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06cxnps4076.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 24CDgYV848038148 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 12 May 2022 13:42:34 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B02C84C044; Thu, 12 May 2022 13:42:34 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 79F7D4C046; Thu, 12 May 2022 13:42:34 +0000 (GMT) Received: from t46lp57.lnxne.boe (unknown [9.152.108.100]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 12 May 2022 13:42:34 +0000 (GMT) From: Nico Boehr To: kvm@vger.kernel.org, linux-s390@vger.kernel.org Cc: frankja@linux.ibm.com, imbrenda@linux.ibm.com, thuth@redhat.com Subject: [kvm-unit-tests PATCH v3 2/2] s390x: add cmm migration test Date: Thu, 12 May 2022 15:42:33 +0200 Message-Id: <20220512134233.1416490-3-nrb@linux.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220512134233.1416490-1-nrb@linux.ibm.com> References: <20220512134233.1416490-1-nrb@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: AMbMxyrkFRuDmnR3d47wf8zGev49HaKn X-Proofpoint-GUID: K_lK2AXs2i508gPDZHGazOUpx-i_wCLw X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.858,Hydra:6.0.486,FMLib:17.11.64.514 definitions=2022-05-12_10,2022-05-12_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 phishscore=0 impostorscore=0 spamscore=0 adultscore=0 lowpriorityscore=0 malwarescore=0 bulkscore=0 clxscore=1015 priorityscore=1501 mlxscore=0 mlxlogscore=941 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2205120065 Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org When a VM is migrated, we expect the page states to be preserved. Add a test which checks for that. Signed-off-by: Nico Boehr Reviewed-by: Claudio Imbrenda --- s390x/Makefile | 1 + s390x/migration-cmm.c | 77 +++++++++++++++++++++++++++++++++++++++++++ s390x/unittests.cfg | 4 +++ 3 files changed, 82 insertions(+) create mode 100644 s390x/migration-cmm.c diff --git a/s390x/Makefile b/s390x/Makefile index a8e04aa6fe4d..1877c8a6e86e 100644 --- a/s390x/Makefile +++ b/s390x/Makefile @@ -32,6 +32,7 @@ tests += $(TEST_DIR)/epsw.elf tests += $(TEST_DIR)/adtl-status.elf tests += $(TEST_DIR)/migration.elf tests += $(TEST_DIR)/pv-attest.elf +tests += $(TEST_DIR)/migration-cmm.elf pv-tests += $(TEST_DIR)/pv-diags.elf diff --git a/s390x/migration-cmm.c b/s390x/migration-cmm.c new file mode 100644 index 000000000000..aa7910ca76bf --- /dev/null +++ b/s390x/migration-cmm.c @@ -0,0 +1,77 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * CMM migration tests (ESSA) + * + * Copyright IBM Corp. 2022 + * + * Authors: + * Nico Boehr + */ + +#include +#include +#include +#include +#include + +#define NUM_PAGES 128 +static uint8_t pagebuf[NUM_PAGES][PAGE_SIZE] __attribute__((aligned(PAGE_SIZE))); + +static void test_migration(void) +{ + int i, state_mask, actual_state; + /* + * Maps ESSA actions to states the page is allowed to be in after the + * respective action was executed. + */ + int allowed_essa_state_masks[4] = { + BIT(ESSA_USAGE_STABLE), /* ESSA_SET_STABLE */ + BIT(ESSA_USAGE_UNUSED), /* ESSA_SET_UNUSED */ + BIT(ESSA_USAGE_VOLATILE), /* ESSA_SET_VOLATILE */ + BIT(ESSA_USAGE_VOLATILE) | BIT(ESSA_USAGE_POT_VOLATILE) /* ESSA_SET_POT_VOLATILE */ + }; + + assert(NUM_PAGES % 4 == 0); + for (i = 0; i < NUM_PAGES; i += 4) { + essa(ESSA_SET_STABLE, (unsigned long)pagebuf[i]); + essa(ESSA_SET_UNUSED, (unsigned long)pagebuf[i + 1]); + essa(ESSA_SET_VOLATILE, (unsigned long)pagebuf[i + 2]); + essa(ESSA_SET_POT_VOLATILE, (unsigned long)pagebuf[i + 3]); + } + + puts("Please migrate me, then press return\n"); + (void)getchar(); + + for (i = 0; i < NUM_PAGES; i++) { + actual_state = essa(ESSA_GET_STATE, (unsigned long)pagebuf[i]); + /* extract the usage state in bits 60 and 61 */ + actual_state = (actual_state >> 2) & 0x3; + state_mask = allowed_essa_state_masks[i % ARRAY_SIZE(allowed_essa_state_masks)]; + report(BIT(actual_state) & state_mask, "page %d state: expected_mask=0x%x actual_mask=0x%lx", i, state_mask, BIT(actual_state)); + } +} + +int main(void) +{ + bool has_essa = check_essa_available(); + + report_prefix_push("migration-cmm"); + if (!has_essa) { + report_skip("ESSA is not available"); + + /* + * If we just exit and don't ask migrate_cmd to migrate us, it + * will just hang forever. Hence, also ask for migration when we + * skip this test alltogether. + */ + puts("Please migrate me, then press return\n"); + (void)getchar(); + + goto done; + } + + test_migration(); +done: + report_prefix_pop(); + return report_summary(); +} diff --git a/s390x/unittests.cfg b/s390x/unittests.cfg index b456b2881448..9b97d0471bcf 100644 --- a/s390x/unittests.cfg +++ b/s390x/unittests.cfg @@ -176,3 +176,7 @@ extra_params = -cpu qemu,gs=off,vx=off file = migration.elf groups = migration smp = 2 + +[migration-cmm] +file = migration-cmm.elf +groups = migration -- 2.31.1