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 42171C6FD1C for ; Tue, 14 Mar 2023 15:25:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230141AbjCNPZp (ORCPT ); Tue, 14 Mar 2023 11:25:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51854 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230038AbjCNPZl (ORCPT ); Tue, 14 Mar 2023 11:25:41 -0400 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3A7BAA8C70; Tue, 14 Mar 2023 08:25:39 -0700 (PDT) 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 32EFFwGq002628; Tue, 14 Mar 2023 15:25:38 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=date : from : to : cc : subject : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=pp1; bh=4oBjoSbYqa0ntnou0ubU5Y4LljcSpfbwFcfsJaSk+2U=; b=JCAI715jm8PabtazTJDlUZiMsv7NSKkm3tnoSRyKM/vC3q90aKP9nYLkSVhliCc72Tjp SZgqtPI1LrYLfG5/P1u/XSqGHoIN4P6VzDchfe3+KIUAp0Ym6xuwQpI83x/yd8LjvyLN p1ArwivSXV91poBRQHWTlNV1O7/qpWDy0ESZf7pPgl/RHzY82nMsmrDAAV10NOEkPyxy ETDAimPCgO2//tdIVKoO0Yv4Z0M/Im8V4lKF3qhNkTJyPtz4RD9vEUuzJYVED5fUIbxy fgks+jNDaF6C56AgP39TdzfPkZauKi4AJGvelCBAo2ulOK+Jzezg3vz08RdvdKIvjb5u Eg== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3pampuwt5e-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 14 Mar 2023 15:25:38 +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 32EFG7cN003824; Tue, 14 Mar 2023 15:25:37 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 3pampuwt4c-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 14 Mar 2023 15:25:37 +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 32E8ZuYc001600; Tue, 14 Mar 2023 15:25:35 GMT Received: from smtprelay04.fra02v.mail.ibm.com ([9.218.2.228]) by ppma03ams.nl.ibm.com (PPS) with ESMTPS id 3p8h96n03u-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 14 Mar 2023 15:25:35 +0000 Received: from smtpav03.fra02v.mail.ibm.com (smtpav03.fra02v.mail.ibm.com [10.20.54.102]) by smtprelay04.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 32EFPWG645023598 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 14 Mar 2023 15:25:32 GMT Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 410532004D; Tue, 14 Mar 2023 15:25:32 +0000 (GMT) Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0949820040; Tue, 14 Mar 2023 15:25:32 +0000 (GMT) Received: from p-imbrenda (unknown [9.152.224.56]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 14 Mar 2023 15:25:31 +0000 (GMT) Date: Tue, 14 Mar 2023 16:25:26 +0100 From: Claudio Imbrenda To: Nina Schoetterl-Glausch Cc: Thomas Huth , Janosch Frank , David Hildenbrand , kvm@vger.kernel.org, linux-s390@vger.kernel.org Subject: Re: [kvm-unit-tests PATCH v2 3/3] s390x/spec_ex: Add test of EXECUTE with odd target address Message-ID: <20230314162526.519364c5@p-imbrenda> In-Reply-To: <20230221174822.1378667-4-nsg@linux.ibm.com> References: <20230221174822.1378667-1-nsg@linux.ibm.com> <20230221174822.1378667-4-nsg@linux.ibm.com> Organization: IBM X-Mailer: Claws Mail 4.1.1 (GTK 3.24.35; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 9fGDDANFMBRhaWPcGoh6y22LbQDh_6FC X-Proofpoint-GUID: F2-DBhITQRKJmHrf7MmeIh-T9imHShsu X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-14_08,2023-03-14_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 malwarescore=0 impostorscore=0 suspectscore=0 mlxscore=0 clxscore=1015 priorityscore=1501 bulkscore=0 mlxlogscore=999 spamscore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2303140127 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Tue, 21 Feb 2023 18:48:22 +0100 Nina Schoetterl-Glausch wrote: > 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" and this should go in a .text.something subsection, as we discussed offline > + "pre_odd_ex_target:\n" shouldn't the label be after the align? > + " .balign 2\n" (i.e. here) > + " . = . + 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 },