From patchwork Tue Feb 21 17:48:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nina Schoetterl-Glausch X-Patchwork-Id: 13148239 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 3A950C636D7 for ; Tue, 21 Feb 2023 17:48:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234696AbjBURsk (ORCPT ); Tue, 21 Feb 2023 12:48:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33868 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234045AbjBURse (ORCPT ); Tue, 21 Feb 2023 12:48:34 -0500 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0D526279AB; Tue, 21 Feb 2023 09:48:31 -0800 (PST) Received: from pps.filterd (m0127361.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 31LHmCe9009555; Tue, 21 Feb 2023 17:48:31 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=T8Cz2usH+rAU9GdefuPD0V6bA1YUsPYfRvJmDeOlBa0=; b=NZo2fmWRQbVxeRVTitB98ukRrtQhPAe3jcA0XFtRq14agaLQBNB+vY/a98kCRz52L1EK jsoCoKTpq4+1uYdQwYVw+DlDVVpoSdh/+Q7Bb4/zvqZR5bbvg+5nTAtwkecZf7pbrmKo IUDLWSqhuF/od1W33ok8cHmQFqwwNCb7KbaDqoD+S3W+fp/1H7glCnfuCbeq9/k75s+w 3I/EDuVI6LYAHXsPH8YynVIhuP19VL/3eB5DorZUNUz6kunAv+wmJCcpxvqBC42+H5zj CaM6ZkE/HGaK2icS41RUeL0QPW0jIycSZ7V6kvYA9n0WEr2z79/JbIuTMjIhmIkg/5nY JA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nw2dwrchw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Feb 2023 17:48:31 +0000 Received: from m0127361.ppops.net (m0127361.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 31LHmEU5009984; Tue, 21 Feb 2023 17:48:30 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 3nw2dwrche-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Feb 2023 17:48:30 +0000 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 31L8O191016665; Tue, 21 Feb 2023 17:48:28 GMT Received: from smtprelay03.fra02v.mail.ibm.com ([9.218.2.224]) by ppma03ams.nl.ibm.com (PPS) with ESMTPS id 3ntpa6cay3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Feb 2023 17:48:28 +0000 Received: from smtpav06.fra02v.mail.ibm.com (smtpav06.fra02v.mail.ibm.com [10.20.54.105]) by smtprelay03.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 31LHmPYD48431450 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 21 Feb 2023 17:48:25 GMT Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 325302004D; Tue, 21 Feb 2023 17:48:25 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F0E1620040; Tue, 21 Feb 2023 17:48:24 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 21 Feb 2023 17:48:24 +0000 (GMT) From: Nina Schoetterl-Glausch To: Thomas Huth , Janosch Frank , Claudio Imbrenda Cc: Nina Schoetterl-Glausch , David Hildenbrand , kvm@vger.kernel.org, linux-s390@vger.kernel.org Subject: [kvm-unit-tests PATCH v2 3/3] s390x/spec_ex: Add test of EXECUTE with odd target address Date: Tue, 21 Feb 2023 18:48:22 +0100 Message-Id: <20230221174822.1378667-4-nsg@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230221174822.1378667-1-nsg@linux.ibm.com> References: <20230221174822.1378667-1-nsg@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: EL3ND9kfkddk34AQeIfTRDreSZEYZ0D2 X-Proofpoint-GUID: HceD8S6V6SgTIeuXAgP8vUw9HL4DrmKs X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.170.22 definitions=2023-02-21_10,2023-02-20_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 phishscore=0 spamscore=0 mlxlogscore=999 suspectscore=0 adultscore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 malwarescore=0 priorityscore=1501 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302210148 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org The EXECUTE instruction executes the instruction at the given target address. This address must be halfword aligned, otherwise a specification exception occurs. Add a test for this. Signed-off-by: Nina Schoetterl-Glausch --- s390x/spec_ex.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/s390x/spec_ex.c b/s390x/spec_ex.c index a26c56aa..dd097f9b 100644 --- a/s390x/spec_ex.c +++ b/s390x/spec_ex.c @@ -177,6 +177,30 @@ static int short_psw_bit_12_is_0(void) return 0; } +static int odd_ex_target(void) +{ + uint64_t pre_target_addr; + int to = 0, from = 0x0dd; + + asm volatile ( ".pushsection .rodata\n" + "pre_odd_ex_target:\n" + " .balign 2\n" + " . = . + 1\n" + " lr %[to],%[from]\n" + " .popsection\n" + + " larl %[pre_target_addr],pre_odd_ex_target\n" + " ex 0,1(%[pre_target_addr])\n" + : [pre_target_addr] "=&a" (pre_target_addr), + [to] "+d" (to) + : [from] "d" (from) + ); + + assert((pre_target_addr + 1) & 1); + report(to != from, "did not perform ex with odd target"); + return 0; +} + static int bad_alignment(void) { uint32_t words[5] __attribute__((aligned(16))); @@ -218,6 +242,7 @@ static const struct spec_ex_trigger spec_ex_triggers[] = { { "psw_bit_12_is_1", &psw_bit_12_is_1, false, &fixup_invalid_psw }, { "short_psw_bit_12_is_0", &short_psw_bit_12_is_0, false, &fixup_invalid_psw }, { "psw_odd_address", &psw_odd_address, false, &fixup_invalid_psw }, + { "odd_ex_target", &odd_ex_target, true, NULL }, { "bad_alignment", &bad_alignment, true, NULL }, { "not_even", ¬_even, true, NULL }, { NULL, NULL, false, NULL },