From patchwork Mon Feb 6 16:45:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130347 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 2C5F7C636D4 for ; Mon, 6 Feb 2023 16:46:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230255AbjBFQqS (ORCPT ); Mon, 6 Feb 2023 11:46:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52546 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229486AbjBFQqR (ORCPT ); Mon, 6 Feb 2023 11:46:17 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A430B1D93F; Mon, 6 Feb 2023 08:46:16 -0800 (PST) Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316GiWHv011119; Mon, 6 Feb 2023 16:46:12 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=mF6uLi36NVaZQCnWTlKj8Q1UqzIyWeZV5mmdHA3tnLM=; b=jep6UZQHkhn0sWpqlTG7BizZK1zTUrQNkSfchIFbHDpnqVppDVFR3z0ZQGU4EJ8UzlFh W7nHmOV228RUrwRwDcWuECCgFHOvClgyBlxmZW4SIZTBlj6x3WnNU9+wbHcIeZcsTIUX 87g5Qqdaw9eEQ3QmChLsQXZ3o5JkMaUdqvTOhIqOIEkJnSV88tbI4dwvHvrNCacOqw3h iMEqxOCfL/4QX638Za0MVZxlrKX4tYk+bekH47ImleQvdxCYcths+ovJQNbCPSn4lyXV JK+b9ZUgQbDUbyYSeJ+0/6eJmV1ybHidTyVyMMbLSxnwt2kWSbJ9rdJ2JQWS3llaKEp/ aQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk51mgp6h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:11 +0000 Received: from m0098396.ppops.net (m0098396.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 316Ginbp012183; Mon, 6 Feb 2023 16:46:11 GMT Received: from ppma01fra.de.ibm.com (46.49.7a9f.ip4.static.sl-reverse.com [159.122.73.70]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk51mgp5h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:11 +0000 Received: from pps.filterd (ppma01fra.de.ibm.com [127.0.0.1]) by ppma01fra.de.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 316Dpt40006266; Mon, 6 Feb 2023 16:46:08 GMT Received: from smtprelay07.fra02v.mail.ibm.com ([9.218.2.229]) by ppma01fra.de.ibm.com (PPS) with ESMTPS id 3nhf06hva4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:08 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316Gk4Yr49611194 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:04 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CA1E620040; Mon, 6 Feb 2023 16:46:04 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 580B42004B; Mon, 6 Feb 2023 16:46:04 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:04 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle , Thomas Huth Subject: [PATCH v7 01/14] KVM: s390: selftest: memop: Pass mop_desc via pointer Date: Mon, 6 Feb 2023 17:45:49 +0100 Message-Id: <20230206164602.138068-2-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: p34xorXUtHmVc0v_kgcq9v2bIRigLn6Y X-Proofpoint-ORIG-GUID: qRK9dQoWYFPQc8cx6IOQUYunZI7KKSwx X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 suspectscore=0 mlxlogscore=999 spamscore=0 adultscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org The struct is quite large, so this seems nicer. Signed-off-by: Janis Schoetterl-Glausch Reviewed-by: Thomas Huth Reviewed-by: Janosch Frank --- tools/testing/selftests/kvm/s390x/memop.c | 44 +++++++++++------------ 1 file changed, 22 insertions(+), 22 deletions(-) diff --git a/tools/testing/selftests/kvm/s390x/memop.c b/tools/testing/selftests/kvm/s390x/memop.c index 3fd81e58f40c..9c05d1205114 100644 --- a/tools/testing/selftests/kvm/s390x/memop.c +++ b/tools/testing/selftests/kvm/s390x/memop.c @@ -48,53 +48,53 @@ struct mop_desc { uint8_t key; }; -static struct kvm_s390_mem_op ksmo_from_desc(struct mop_desc desc) +static struct kvm_s390_mem_op ksmo_from_desc(const struct mop_desc *desc) { struct kvm_s390_mem_op ksmo = { - .gaddr = (uintptr_t)desc.gaddr, - .size = desc.size, - .buf = ((uintptr_t)desc.buf), + .gaddr = (uintptr_t)desc->gaddr, + .size = desc->size, + .buf = ((uintptr_t)desc->buf), .reserved = "ignored_ignored_ignored_ignored" }; - switch (desc.target) { + switch (desc->target) { case LOGICAL: - if (desc.mode == READ) + if (desc->mode == READ) ksmo.op = KVM_S390_MEMOP_LOGICAL_READ; - if (desc.mode == WRITE) + if (desc->mode == WRITE) ksmo.op = KVM_S390_MEMOP_LOGICAL_WRITE; break; case SIDA: - if (desc.mode == READ) + if (desc->mode == READ) ksmo.op = KVM_S390_MEMOP_SIDA_READ; - if (desc.mode == WRITE) + if (desc->mode == WRITE) ksmo.op = KVM_S390_MEMOP_SIDA_WRITE; break; case ABSOLUTE: - if (desc.mode == READ) + if (desc->mode == READ) ksmo.op = KVM_S390_MEMOP_ABSOLUTE_READ; - if (desc.mode == WRITE) + if (desc->mode == WRITE) ksmo.op = KVM_S390_MEMOP_ABSOLUTE_WRITE; break; case INVALID: ksmo.op = -1; } - if (desc.f_check) + if (desc->f_check) ksmo.flags |= KVM_S390_MEMOP_F_CHECK_ONLY; - if (desc.f_inject) + if (desc->f_inject) ksmo.flags |= KVM_S390_MEMOP_F_INJECT_EXCEPTION; - if (desc._set_flags) - ksmo.flags = desc.set_flags; - if (desc.f_key) { + if (desc->_set_flags) + ksmo.flags = desc->set_flags; + if (desc->f_key) { ksmo.flags |= KVM_S390_MEMOP_F_SKEY_PROTECTION; - ksmo.key = desc.key; + ksmo.key = desc->key; } - if (desc._ar) - ksmo.ar = desc.ar; + if (desc->_ar) + ksmo.ar = desc->ar; else ksmo.ar = 0; - if (desc._sida_offset) - ksmo.sida_offset = desc.sida_offset; + if (desc->_sida_offset) + ksmo.sida_offset = desc->sida_offset; return ksmo; } @@ -183,7 +183,7 @@ static int err_memop_ioctl(struct test_info info, struct kvm_s390_mem_op *ksmo) else \ __desc.gaddr = __desc.gaddr_v; \ } \ - __ksmo = ksmo_from_desc(__desc); \ + __ksmo = ksmo_from_desc(&__desc); \ print_memop(__info.vcpu, &__ksmo); \ err##memop_ioctl(__info, &__ksmo); \ }) From patchwork Mon Feb 6 16:45:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130348 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 7F793C64EC3 for ; Mon, 6 Feb 2023 16:46:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230291AbjBFQqT (ORCPT ); Mon, 6 Feb 2023 11:46:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52550 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229619AbjBFQqR (ORCPT ); Mon, 6 Feb 2023 11:46:17 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A7C9E25E2A; Mon, 6 Feb 2023 08:46:16 -0800 (PST) Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316GiX3Y011204; Mon, 6 Feb 2023 16:46:12 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=6ZKGTGisiG1NUcLFCh1Mfp6s/BU1778FXmqAZc03Oco=; b=IrBnjAHvCsakX9yGJiMIr/GwOkEgkfKx1r4rJUXpD+/L8Dwv3hgOTSZCIDqask+4rAm/ Clml5yKP7tIbyMCol2aLppHsbZ7BrVCKPDEDeRyLnrAWF5lCGn1xZ9eB3Q7EjjEzryCG 5AtC/cXiKwhWnKgeWMT68NvSW+SD28OIx7hjdAt+T06DcyJUoYr+MD1NrAzbNd3EVDmZ CphgOxR1Vugs+3O+ui7Twunu6RTgaALe6AIyFJd1ahutVEFnzVagmpbo7WXZILowz6yN YevJYP/QiORiyQolRJPIdkQieSIGZZenBCufXHkocmzYeCpp/opmhNIfe7Sac995eD+C vQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk51mgp6n-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:12 +0000 Received: from m0098396.ppops.net (m0098396.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 316GiWBq011125; Mon, 6 Feb 2023 16:46:11 GMT 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 3nk51mgp5p-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:11 +0000 Received: from pps.filterd (ppma04ams.nl.ibm.com [127.0.0.1]) by ppma04ams.nl.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 3160HbkX023711; Mon, 6 Feb 2023 16:46:09 GMT Received: from smtprelay01.fra02v.mail.ibm.com ([9.218.2.227]) by ppma04ams.nl.ibm.com (PPS) with ESMTPS id 3nhf06tmsv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:08 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay01.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316Gk5i952560284 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:05 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 52BF020040; Mon, 6 Feb 2023 16:46:05 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D563F20043; Mon, 6 Feb 2023 16:46:04 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:04 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle , Thomas Huth Subject: [PATCH v7 02/14] KVM: s390: selftest: memop: Replace macros by functions Date: Mon, 6 Feb 2023 17:45:50 +0100 Message-Id: <20230206164602.138068-3-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: _NwVI0_C46PXwMces2IpmRDTmyO7LbHB X-Proofpoint-ORIG-GUID: pOILngav9fNyYGZC5wGg8ge7lqYTV09B X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 suspectscore=0 mlxlogscore=999 spamscore=0 adultscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Replace the DEFAULT_* test helpers by functions, as they don't need the extra flexibility. Signed-off-by: Janis Schoetterl-Glausch Reviewed-by: Thomas Huth Acked-by: Janosch Frank --- tools/testing/selftests/kvm/s390x/memop.c | 82 +++++++++++------------ 1 file changed, 39 insertions(+), 43 deletions(-) diff --git a/tools/testing/selftests/kvm/s390x/memop.c b/tools/testing/selftests/kvm/s390x/memop.c index 9c05d1205114..df1c726294b2 100644 --- a/tools/testing/selftests/kvm/s390x/memop.c +++ b/tools/testing/selftests/kvm/s390x/memop.c @@ -48,6 +48,8 @@ struct mop_desc { uint8_t key; }; +const uint8_t NO_KEY = 0xff; + static struct kvm_s390_mem_op ksmo_from_desc(const struct mop_desc *desc) { struct kvm_s390_mem_op ksmo = { @@ -85,7 +87,7 @@ static struct kvm_s390_mem_op ksmo_from_desc(const struct mop_desc *desc) ksmo.flags |= KVM_S390_MEMOP_F_INJECT_EXCEPTION; if (desc->_set_flags) ksmo.flags = desc->set_flags; - if (desc->f_key) { + if (desc->f_key && desc->key != NO_KEY) { ksmo.flags |= KVM_S390_MEMOP_F_SKEY_PROTECTION; ksmo.key = desc->key; } @@ -268,34 +270,28 @@ static void prepare_mem12(void) #define ASSERT_MEM_EQ(p1, p2, size) \ TEST_ASSERT(!memcmp(p1, p2, size), "Memory contents do not match!") -#define DEFAULT_WRITE_READ(copy_cpu, mop_cpu, mop_target_p, size, ...) \ -({ \ - struct test_info __copy_cpu = (copy_cpu), __mop_cpu = (mop_cpu); \ - enum mop_target __target = (mop_target_p); \ - uint32_t __size = (size); \ - \ - prepare_mem12(); \ - CHECK_N_DO(MOP, __mop_cpu, __target, WRITE, mem1, __size, \ - GADDR_V(mem1), ##__VA_ARGS__); \ - HOST_SYNC(__copy_cpu, STAGE_COPIED); \ - CHECK_N_DO(MOP, __mop_cpu, __target, READ, mem2, __size, \ - GADDR_V(mem2), ##__VA_ARGS__); \ - ASSERT_MEM_EQ(mem1, mem2, __size); \ -}) +static void default_write_read(struct test_info copy_cpu, struct test_info mop_cpu, + enum mop_target mop_target, uint32_t size, uint8_t key) +{ + prepare_mem12(); + CHECK_N_DO(MOP, mop_cpu, mop_target, WRITE, mem1, size, + GADDR_V(mem1), KEY(key)); + HOST_SYNC(copy_cpu, STAGE_COPIED); + CHECK_N_DO(MOP, mop_cpu, mop_target, READ, mem2, size, + GADDR_V(mem2), KEY(key)); + ASSERT_MEM_EQ(mem1, mem2, size); +} -#define DEFAULT_READ(copy_cpu, mop_cpu, mop_target_p, size, ...) \ -({ \ - struct test_info __copy_cpu = (copy_cpu), __mop_cpu = (mop_cpu); \ - enum mop_target __target = (mop_target_p); \ - uint32_t __size = (size); \ - \ - prepare_mem12(); \ - CHECK_N_DO(MOP, __mop_cpu, __target, WRITE, mem1, __size, \ - GADDR_V(mem1)); \ - HOST_SYNC(__copy_cpu, STAGE_COPIED); \ - CHECK_N_DO(MOP, __mop_cpu, __target, READ, mem2, __size, ##__VA_ARGS__);\ - ASSERT_MEM_EQ(mem1, mem2, __size); \ -}) +static void default_read(struct test_info copy_cpu, struct test_info mop_cpu, + enum mop_target mop_target, uint32_t size, uint8_t key) +{ + prepare_mem12(); + CHECK_N_DO(MOP, mop_cpu, mop_target, WRITE, mem1, size, GADDR_V(mem1)); + HOST_SYNC(copy_cpu, STAGE_COPIED); + CHECK_N_DO(MOP, mop_cpu, mop_target, READ, mem2, size, + GADDR_V(mem2), KEY(key)); + ASSERT_MEM_EQ(mem1, mem2, size); +} static void guest_copy(void) { @@ -310,7 +306,7 @@ static void test_copy(void) HOST_SYNC(t.vcpu, STAGE_INITED); - DEFAULT_WRITE_READ(t.vcpu, t.vcpu, LOGICAL, t.size); + default_write_read(t.vcpu, t.vcpu, LOGICAL, t.size, NO_KEY); kvm_vm_free(t.kvm_vm); } @@ -357,26 +353,26 @@ static void test_copy_key(void) HOST_SYNC(t.vcpu, STAGE_SKEYS_SET); /* vm, no key */ - DEFAULT_WRITE_READ(t.vcpu, t.vm, ABSOLUTE, t.size); + default_write_read(t.vcpu, t.vm, ABSOLUTE, t.size, NO_KEY); /* vm/vcpu, machting key or key 0 */ - DEFAULT_WRITE_READ(t.vcpu, t.vcpu, LOGICAL, t.size, KEY(0)); - DEFAULT_WRITE_READ(t.vcpu, t.vcpu, LOGICAL, t.size, KEY(9)); - DEFAULT_WRITE_READ(t.vcpu, t.vm, ABSOLUTE, t.size, KEY(0)); - DEFAULT_WRITE_READ(t.vcpu, t.vm, ABSOLUTE, t.size, KEY(9)); + default_write_read(t.vcpu, t.vcpu, LOGICAL, t.size, 0); + default_write_read(t.vcpu, t.vcpu, LOGICAL, t.size, 9); + default_write_read(t.vcpu, t.vm, ABSOLUTE, t.size, 0); + default_write_read(t.vcpu, t.vm, ABSOLUTE, t.size, 9); /* * There used to be different code paths for key handling depending on * if the region crossed a page boundary. * There currently are not, but the more tests the merrier. */ - DEFAULT_WRITE_READ(t.vcpu, t.vcpu, LOGICAL, 1, KEY(0)); - DEFAULT_WRITE_READ(t.vcpu, t.vcpu, LOGICAL, 1, KEY(9)); - DEFAULT_WRITE_READ(t.vcpu, t.vm, ABSOLUTE, 1, KEY(0)); - DEFAULT_WRITE_READ(t.vcpu, t.vm, ABSOLUTE, 1, KEY(9)); + default_write_read(t.vcpu, t.vcpu, LOGICAL, 1, 0); + default_write_read(t.vcpu, t.vcpu, LOGICAL, 1, 9); + default_write_read(t.vcpu, t.vm, ABSOLUTE, 1, 0); + default_write_read(t.vcpu, t.vm, ABSOLUTE, 1, 9); /* vm/vcpu, mismatching keys on read, but no fetch protection */ - DEFAULT_READ(t.vcpu, t.vcpu, LOGICAL, t.size, GADDR_V(mem2), KEY(2)); - DEFAULT_READ(t.vcpu, t.vm, ABSOLUTE, t.size, GADDR_V(mem1), KEY(2)); + default_read(t.vcpu, t.vcpu, LOGICAL, t.size, 2); + default_read(t.vcpu, t.vm, ABSOLUTE, t.size, 2); kvm_vm_free(t.kvm_vm); } @@ -409,7 +405,7 @@ static void test_copy_key_storage_prot_override(void) HOST_SYNC(t.vcpu, STAGE_SKEYS_SET); /* vcpu, mismatching keys, storage protection override in effect */ - DEFAULT_WRITE_READ(t.vcpu, t.vcpu, LOGICAL, t.size, KEY(2)); + default_write_read(t.vcpu, t.vcpu, LOGICAL, t.size, 2); kvm_vm_free(t.kvm_vm); } @@ -422,8 +418,8 @@ static void test_copy_key_fetch_prot(void) HOST_SYNC(t.vcpu, STAGE_SKEYS_SET); /* vm/vcpu, matching key, fetch protection in effect */ - DEFAULT_READ(t.vcpu, t.vcpu, LOGICAL, t.size, GADDR_V(mem2), KEY(9)); - DEFAULT_READ(t.vcpu, t.vm, ABSOLUTE, t.size, GADDR_V(mem2), KEY(9)); + default_read(t.vcpu, t.vcpu, LOGICAL, t.size, 9); + default_read(t.vcpu, t.vm, ABSOLUTE, t.size, 9); kvm_vm_free(t.kvm_vm); } From patchwork Mon Feb 6 16:45:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130357 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 2BF1CC64EC7 for ; Mon, 6 Feb 2023 16:46:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231250AbjBFQqh (ORCPT ); Mon, 6 Feb 2023 11:46:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52626 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230397AbjBFQqV (ORCPT ); Mon, 6 Feb 2023 11:46:21 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 033BD28D12; Mon, 6 Feb 2023 08:46:20 -0800 (PST) Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316Gibtt032700; Mon, 6 Feb 2023 16:46:13 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=AhYDFHIUyInMt+lUBUuaRSPO/b7mLmW7f7V5OqOfN9M=; b=eX+VPPkS3kLgisofcqLNxoDU04rcMxanC6jgnjxYCPjNdVgiTrM2FkWgLKu25CJ1lsfr DHVuqAdkOWN0KDynJ3fSL+4sNZsv7+DwnNirIcDL6RWDohpglv1VBvwH3xKcbNOsXLoK 4/div+JMkFr2EVUgkJUs74mrHgIOWlI2zCxLilPlocRjmA/pn8Bbf+Y7FmcqQN2vP0kT a9X3hdktOrOZZ532+QlladmYQ3PAN6F6Bx7umuLO4FYGDm8NAzePJbtpBocr1QsDu59y YQqG4cZevnFFCvZl5V3E22znqik8yMV9FMF51iSCipo+/f8FoNpt2B5eYaBOVidfUWEY 4A== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk56q8aw2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:12 +0000 Received: from m0187473.ppops.net (m0187473.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 316GjX5Y036699; Mon, 6 Feb 2023 16:46:12 GMT Received: from ppma05fra.de.ibm.com (6c.4a.5195.ip4.static.sl-reverse.com [149.81.74.108]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk56q8av0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:11 +0000 Received: from pps.filterd (ppma05fra.de.ibm.com [127.0.0.1]) by ppma05fra.de.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 3163BgjO014014; Mon, 6 Feb 2023 16:46:09 GMT Received: from smtprelay01.fra02v.mail.ibm.com ([9.218.2.227]) by ppma05fra.de.ibm.com (PPS) with ESMTPS id 3nhf06sv3m-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:09 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay01.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316Gk52t48759264 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:06 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CEC0C20040; Mon, 6 Feb 2023 16:46:05 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5E4A62004B; Mon, 6 Feb 2023 16:46:05 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:05 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle , Thomas Huth Subject: [PATCH v7 03/14] KVM: s390: selftest: memop: Move testlist into main Date: Mon, 6 Feb 2023 17:45:51 +0100 Message-Id: <20230206164602.138068-4-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: Vd-YHuMm8-dvrcy8exKk0hOgH7qmK88t X-Proofpoint-GUID: kMJZhJIZLK8BxkiLbeeo6pQHiR7tMqKf X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 lowpriorityscore=0 mlxscore=0 priorityscore=1501 spamscore=0 mlxlogscore=999 suspectscore=0 phishscore=0 malwarescore=0 adultscore=0 clxscore=1015 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org This allows checking if the necessary requirements for a test case are met via an arbitrary expression. In particular, it is easy to check if certain bits are set in the memop extension capability. Signed-off-by: Janis Schoetterl-Glausch Reviewed-by: Thomas Huth Reviewed-by: Janosch Frank --- tools/testing/selftests/kvm/s390x/memop.c | 131 +++++++++++----------- 1 file changed, 66 insertions(+), 65 deletions(-) diff --git a/tools/testing/selftests/kvm/s390x/memop.c b/tools/testing/selftests/kvm/s390x/memop.c index df1c726294b2..bbc191a13760 100644 --- a/tools/testing/selftests/kvm/s390x/memop.c +++ b/tools/testing/selftests/kvm/s390x/memop.c @@ -690,85 +690,86 @@ static void test_errors(void) kvm_vm_free(t.kvm_vm); } -struct testdef { - const char *name; - void (*test)(void); - int extension; -} testlist[] = { - { - .name = "simple copy", - .test = test_copy, - }, - { - .name = "generic error checks", - .test = test_errors, - }, - { - .name = "copy with storage keys", - .test = test_copy_key, - .extension = 1, - }, - { - .name = "copy with key storage protection override", - .test = test_copy_key_storage_prot_override, - .extension = 1, - }, - { - .name = "copy with key fetch protection", - .test = test_copy_key_fetch_prot, - .extension = 1, - }, - { - .name = "copy with key fetch protection override", - .test = test_copy_key_fetch_prot_override, - .extension = 1, - }, - { - .name = "error checks with key", - .test = test_errors_key, - .extension = 1, - }, - { - .name = "termination", - .test = test_termination, - .extension = 1, - }, - { - .name = "error checks with key storage protection override", - .test = test_errors_key_storage_prot_override, - .extension = 1, - }, - { - .name = "error checks without key fetch prot override", - .test = test_errors_key_fetch_prot_override_not_enabled, - .extension = 1, - }, - { - .name = "error checks with key fetch prot override", - .test = test_errors_key_fetch_prot_override_enabled, - .extension = 1, - }, -}; int main(int argc, char *argv[]) { int extension_cap, idx; TEST_REQUIRE(kvm_has_cap(KVM_CAP_S390_MEM_OP)); + extension_cap = kvm_check_cap(KVM_CAP_S390_MEM_OP_EXTENSION); - ksft_print_header(); + struct testdef { + const char *name; + void (*test)(void); + bool requirements_met; + } testlist[] = { + { + .name = "simple copy", + .test = test_copy, + .requirements_met = true, + }, + { + .name = "generic error checks", + .test = test_errors, + .requirements_met = true, + }, + { + .name = "copy with storage keys", + .test = test_copy_key, + .requirements_met = extension_cap > 0, + }, + { + .name = "copy with key storage protection override", + .test = test_copy_key_storage_prot_override, + .requirements_met = extension_cap > 0, + }, + { + .name = "copy with key fetch protection", + .test = test_copy_key_fetch_prot, + .requirements_met = extension_cap > 0, + }, + { + .name = "copy with key fetch protection override", + .test = test_copy_key_fetch_prot_override, + .requirements_met = extension_cap > 0, + }, + { + .name = "error checks with key", + .test = test_errors_key, + .requirements_met = extension_cap > 0, + }, + { + .name = "termination", + .test = test_termination, + .requirements_met = extension_cap > 0, + }, + { + .name = "error checks with key storage protection override", + .test = test_errors_key_storage_prot_override, + .requirements_met = extension_cap > 0, + }, + { + .name = "error checks without key fetch prot override", + .test = test_errors_key_fetch_prot_override_not_enabled, + .requirements_met = extension_cap > 0, + }, + { + .name = "error checks with key fetch prot override", + .test = test_errors_key_fetch_prot_override_enabled, + .requirements_met = extension_cap > 0, + }, + }; + ksft_print_header(); ksft_set_plan(ARRAY_SIZE(testlist)); - extension_cap = kvm_check_cap(KVM_CAP_S390_MEM_OP_EXTENSION); for (idx = 0; idx < ARRAY_SIZE(testlist); idx++) { - if (extension_cap >= testlist[idx].extension) { + if (testlist[idx].requirements_met) { testlist[idx].test(); ksft_test_result_pass("%s\n", testlist[idx].name); } else { - ksft_test_result_skip("%s - extension level %d not supported\n", - testlist[idx].name, - testlist[idx].extension); + ksft_test_result_skip("%s - requirements not met (kernel has extension cap %#x)\n", + testlist[idx].name, extension_cap); } } From patchwork Mon Feb 6 16:45:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130352 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 3D025C63797 for ; Mon, 6 Feb 2023 16:46:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230448AbjBFQqY (ORCPT ); Mon, 6 Feb 2023 11:46:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52604 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230352AbjBFQqV (ORCPT ); Mon, 6 Feb 2023 11:46:21 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A5F832884D; Mon, 6 Feb 2023 08:46:19 -0800 (PST) Received: from pps.filterd (m0098416.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316Gk9pj001282; Mon, 6 Feb 2023 16:46:12 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=O63EL2nVE0XoojtA41wT6iXaXKgqdbtdUQDq2wyErxE=; b=mhGJZmQ7vpUKUUI0uN0p+O1xJVGPMhiZXQ/pimQpwwLqvssOSaUCcPqUzd++gfkxjcFc tAUJNP03l084ZKv26ZGla1/xmp+/+/ISO97MTeK1IHZKnoMNp+UNnmRTujPUJnfIsjcQ EWlJl7eWhZ8/2XzTEqWaHNBoUXfIsTkRART2jakmzkMpwWhpObCh5CJHWbNoK3aBX2fb VUP+7jxEL9+licueNtnbz9aPaCyg2JfyBGEE6kXjOuYao06xqdaBxz/lJnWcOnCBOCeQ EZcfuJhem/Da4wbhuJyDRB1nZkoMSkVMCul43UTM3ekStUe+WFISp219RkYaEXMVOoDm 7Q== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk5c2r03j-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:12 +0000 Received: from m0098416.ppops.net (m0098416.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 316GkCG4001388; Mon, 6 Feb 2023 16:46:12 GMT Received: from ppma02fra.de.ibm.com (47.49.7a9f.ip4.static.sl-reverse.com [159.122.73.71]) by mx0b-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk5c2r02g-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:12 +0000 Received: from pps.filterd (ppma02fra.de.ibm.com [127.0.0.1]) by ppma02fra.de.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 316Ed2r2026561; Mon, 6 Feb 2023 16:46:10 GMT Received: from smtprelay02.fra02v.mail.ibm.com ([9.218.2.226]) by ppma02fra.de.ibm.com (PPS) with ESMTPS id 3nhf06sv6t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:09 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay02.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316Gk6hl47907326 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:06 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6311020040; Mon, 6 Feb 2023 16:46:06 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DA37620043; Mon, 6 Feb 2023 16:46:05 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:05 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle , Nico Boehr Subject: [PATCH v7 04/14] KVM: s390: selftest: memop: Add bad address test Date: Mon, 6 Feb 2023 17:45:52 +0100 Message-Id: <20230206164602.138068-5-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 2jfJV1NDil-NuDnV-QuzXzTgHC-JeC9W X-Proofpoint-ORIG-GUID: ShSHD1LSOsdqg9L_DK0f_V0Znx9ucinY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 suspectscore=0 impostorscore=0 malwarescore=0 priorityscore=1501 mlxscore=0 mlxlogscore=999 clxscore=1015 adultscore=0 bulkscore=0 lowpriorityscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Add a test that tries a real write to a bad address. The existing CHECK_ONLY test doesn't cover all paths. Signed-off-by: Janis Schoetterl-Glausch Reviewed-by: Nico Boehr Reviewed-by: Janosch Frank --- tools/testing/selftests/kvm/s390x/memop.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/s390x/memop.c b/tools/testing/selftests/kvm/s390x/memop.c index bbc191a13760..00737cceacda 100644 --- a/tools/testing/selftests/kvm/s390x/memop.c +++ b/tools/testing/selftests/kvm/s390x/memop.c @@ -641,7 +641,9 @@ static void _test_errors_common(struct test_info info, enum mop_target target, i /* Bad guest address: */ rv = ERR_MOP(info, target, WRITE, mem1, size, GADDR((void *)~0xfffUL), CHECK_ONLY); - TEST_ASSERT(rv > 0, "ioctl does not report bad guest memory access"); + TEST_ASSERT(rv > 0, "ioctl does not report bad guest memory address with CHECK_ONLY"); + rv = ERR_MOP(info, target, WRITE, mem1, size, GADDR((void *)~0xfffUL)); + TEST_ASSERT(rv > 0, "ioctl does not report bad guest memory address on write"); /* Bad host address: */ rv = ERR_MOP(info, target, WRITE, 0, size, GADDR_V(mem1)); From patchwork Mon Feb 6 16:45:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130379 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 1FB8EC636D3 for ; Mon, 6 Feb 2023 17:03:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229536AbjBFRDn (ORCPT ); Mon, 6 Feb 2023 12:03:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40458 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229537AbjBFRDm (ORCPT ); Mon, 6 Feb 2023 12:03:42 -0500 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 631EA21A22; Mon, 6 Feb 2023 09:03:41 -0800 (PST) Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316GvKsd011257; Mon, 6 Feb 2023 17:03:37 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=hrA9fZeyTW2k/jOn1JdCQauZ1lZT/lKkQLUaX2O5Ls8=; b=hO7zo56/d/yUtd9fiTiTK5rqJzsvYAOFETG3MRmtpg7vVRXJft2nKgH8SKPWxCfgqGFC 5dwp7/9TJQ81GWQ5F4qYkmgG+bsUzuyHwhZy9trvCMOK7uM/3F6JuyCVMRSm1s22EJfE p9bVnXYhojk4qyJwUCdZjiqJNF/hPOUZ6IlXIsz/seE046pAjORkcaGZ/3Jy8mEySlq0 oaX23/lCfhoP5yAXcn14OHOVRUWHOE2dwek9ug4Xcmlv47jnGQBpztVeUZCL8DzJL9O8 s4JB6n2I/a5ki1JD5fhE5ik1AjC2TPOjFhptMqY2vhbFe2gGq00dv/xCbR759meXnN65 Ug== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk3rmc1pe-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 17:03:36 +0000 Received: from m0098417.ppops.net (m0098417.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 316Gvscb013793; Mon, 6 Feb 2023 17:03:36 GMT Received: from ppma03fra.de.ibm.com (6b.4a.5195.ip4.static.sl-reverse.com [149.81.74.107]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk3rmc1nj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 17:03:35 +0000 Received: from pps.filterd (ppma03fra.de.ibm.com [127.0.0.1]) by ppma03fra.de.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 316Bn9B2000395; Mon, 6 Feb 2023 16:46:10 GMT Received: from smtprelay03.fra02v.mail.ibm.com ([9.218.2.224]) by ppma03fra.de.ibm.com (PPS) with ESMTPS id 3nhf06hv13-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:10 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay03.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316Gk7Fx46399834 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:07 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EF3762004D; Mon, 6 Feb 2023 16:46:06 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6F5942004B; Mon, 6 Feb 2023 16:46:06 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:06 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle , Thomas Huth , Nico Boehr Subject: [PATCH v7 05/14] KVM: s390: selftest: memop: Fix typo Date: Mon, 6 Feb 2023 17:45:53 +0100 Message-Id: <20230206164602.138068-6-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: RmqJyTy2jHcXQE9anOBHBLJ-o7BtCpER X-Proofpoint-ORIG-GUID: JhL9eJs5euI3-QEcrZh31rRcU5RAONCc X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=990 priorityscore=1501 spamscore=0 malwarescore=0 clxscore=1015 bulkscore=0 adultscore=0 mlxscore=0 impostorscore=0 phishscore=0 suspectscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060149 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org "acceeded" isn't a word, should be "exceeded". Signed-off-by: Janis Schoetterl-Glausch Reviewed-by: Thomas Huth Reviewed-by: Nico Boehr --- tools/testing/selftests/kvm/s390x/memop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/s390x/memop.c b/tools/testing/selftests/kvm/s390x/memop.c index 00737cceacda..033a8603a096 100644 --- a/tools/testing/selftests/kvm/s390x/memop.c +++ b/tools/testing/selftests/kvm/s390x/memop.c @@ -602,7 +602,7 @@ static void test_errors_key_fetch_prot_override_enabled(void) /* * vcpu, mismatching keys on fetch, - * fetch protection override does not apply because memory range acceeded + * fetch protection override does not apply because memory range exceeded */ CHECK_N_DO(ERR_PROT_MOP, t.vcpu, LOGICAL, READ, mem2, 2048 + 1, GADDR_V(0), KEY(2)); CHECK_N_DO(ERR_PROT_MOP, t.vcpu, LOGICAL, READ, mem2, PAGE_SIZE + 2048 + 1, From patchwork Mon Feb 6 16:45:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130373 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 AA728C636D4 for ; Mon, 6 Feb 2023 16:51:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230019AbjBFQvw (ORCPT ); Mon, 6 Feb 2023 11:51:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59622 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230033AbjBFQvu (ORCPT ); Mon, 6 Feb 2023 11:51:50 -0500 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7DCBD28D21; Mon, 6 Feb 2023 08:51:29 -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 316Gjf0H029652; Mon, 6 Feb 2023 16:51:14 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=WjhByBg2KOi/yDgilkZ9dXymYLIVfqaoq3FE1wy/xeY=; b=EHPsKjNVubXtAynVcC3WyTEeu6M/1+BwjtEBDDSH8PbEGtvM7NEcz1U8FTnGrRRfDr0K +n8hFRXg92lmPmjqRKUwCNf0Yt5wGG8v39HWKXECnWp4RJyQFIM3YLet2yNXApso6jFZ WuoZdsY4v/qnJI0e8jWCvqQtidGbeyp0OfpKUKJafrbV4MAE4xkMIGcA/0L1s69POFvS iu0wcPjeNwq56yt02dHl+aPtHX+lb7TtSjNPQ6WAe12bBEltNVUWVXY/SnX8uqGmE/xN qXDE3ZbdXAWgmp2F0zeBlXb7oBf8wFlYPXubaD49m00c+Y4BaktT/PNW1uh5sSlLWb8O zg== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk51jgrk2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:51:13 +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 316GjgFn029746; Mon, 6 Feb 2023 16:51:13 GMT Received: from ppma01fra.de.ibm.com (46.49.7a9f.ip4.static.sl-reverse.com [159.122.73.70]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk51jgrj6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:51:13 +0000 Received: from pps.filterd (ppma01fra.de.ibm.com [127.0.0.1]) by ppma01fra.de.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 316Ei0pR001412; Mon, 6 Feb 2023 16:46:11 GMT Received: from smtprelay03.fra02v.mail.ibm.com ([9.218.2.224]) by ppma01fra.de.ibm.com (PPS) with ESMTPS id 3nhf06hva7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:11 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay03.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316Gk7eJ44957972 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:07 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 821142004B; Mon, 6 Feb 2023 16:46:07 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 05E6E20043; Mon, 6 Feb 2023 16:46:07 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:06 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle , Nico Boehr Subject: [PATCH v7 06/14] KVM: s390: selftest: memop: Fix wrong address being used in test Date: Mon, 6 Feb 2023 17:45:54 +0100 Message-Id: <20230206164602.138068-7-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: NLLjc3mg75oQFyJ83caaWuTGMmRVAVRU X-Proofpoint-ORIG-GUID: ukDrcJ6h10Uf2gtP2xiLX8vyEKQGbH46 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxscore=0 phishscore=0 spamscore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 bulkscore=0 priorityscore=1501 mlxlogscore=990 malwarescore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org The guest code sets the key for mem1 only. In order to provoke a protection exception the test codes needs to address mem1. Signed-off-by: Janis Schoetterl-Glausch Reviewed-by: Nico Boehr --- tools/testing/selftests/kvm/s390x/memop.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/kvm/s390x/memop.c b/tools/testing/selftests/kvm/s390x/memop.c index 033a8603a096..1ae5c01f9904 100644 --- a/tools/testing/selftests/kvm/s390x/memop.c +++ b/tools/testing/selftests/kvm/s390x/memop.c @@ -450,9 +450,9 @@ static void test_errors_key(void) /* vm/vcpu, mismatching keys, fetch protection in effect */ CHECK_N_DO(ERR_PROT_MOP, t.vcpu, LOGICAL, WRITE, mem1, t.size, GADDR_V(mem1), KEY(2)); - CHECK_N_DO(ERR_PROT_MOP, t.vcpu, LOGICAL, READ, mem2, t.size, GADDR_V(mem2), KEY(2)); + CHECK_N_DO(ERR_PROT_MOP, t.vcpu, LOGICAL, READ, mem2, t.size, GADDR_V(mem1), KEY(2)); CHECK_N_DO(ERR_PROT_MOP, t.vm, ABSOLUTE, WRITE, mem1, t.size, GADDR_V(mem1), KEY(2)); - CHECK_N_DO(ERR_PROT_MOP, t.vm, ABSOLUTE, READ, mem2, t.size, GADDR_V(mem2), KEY(2)); + CHECK_N_DO(ERR_PROT_MOP, t.vm, ABSOLUTE, READ, mem2, t.size, GADDR_V(mem1), KEY(2)); kvm_vm_free(t.kvm_vm); } From patchwork Mon Feb 6 16:45:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130351 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 D1F0DC64EC3 for ; Mon, 6 Feb 2023 16:46:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230328AbjBFQqU (ORCPT ); Mon, 6 Feb 2023 11:46:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52560 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230297AbjBFQqT (ORCPT ); Mon, 6 Feb 2023 11:46:19 -0500 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A83711D93F; Mon, 6 Feb 2023 08:46:18 -0800 (PST) Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316GjPAM009493; Mon, 6 Feb 2023 16:46:14 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=lGd6NVjCuZeAkFsLSbx/PFZ9uVy5N6POGj4BCOeukGE=; b=gHDDahatp1MD57+duLPu+1AhDJjFfaybZA5eZxO/XC1kTFihSGGMk7xNCl4Zte9hhXww /sn3/yw8A9wM/03e//kfd2h4rRih+klq+Bs9T71UDv94tPXEusvOxPTOkzMQgvX2R7ae 5NaVzd2FDVnhvpmy6Iy5JtxmaY55ZzEJLPsJJU82KaNjJmb9lAowWr+JdfGrJg+U5dSU 2gTR1IdX2r76hu3Fj429Zh3rMbqmTBOJMFaOe32mH8xSRnz7U//iQpNpJflawTHBQ5rb 1QBV1N6fjBEgSaOvuwfL2rAXdSp/MBhkwEpi1PO6S7NNVKXr5P52nMEWKrRv9K2o7+c6 ZA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk5aw81hf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:14 +0000 Received: from m0098421.ppops.net (m0098421.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 316GkDhL012316; Mon, 6 Feb 2023 16:46:13 GMT Received: from ppma06ams.nl.ibm.com (66.31.33a9.ip4.static.sl-reverse.com [169.51.49.102]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk5aw81gq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:13 +0000 Received: from pps.filterd (ppma06ams.nl.ibm.com [127.0.0.1]) by ppma06ams.nl.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 316GSWME020984; Mon, 6 Feb 2023 16:46:11 GMT Received: from smtprelay04.fra02v.mail.ibm.com ([9.218.2.228]) by ppma06ams.nl.ibm.com (PPS) with ESMTPS id 3nhemfjms6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:11 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay04.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316Gk8kS22085972 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:08 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 12FCD20040; Mon, 6 Feb 2023 16:46:08 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8D22F2004D; Mon, 6 Feb 2023 16:46:07 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:07 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle , Thomas Huth Subject: [PATCH v7 07/14] KVM: s390: selftest: memop: Fix integer literal Date: Mon, 6 Feb 2023 17:45:55 +0100 Message-Id: <20230206164602.138068-8-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: a8QoKZoIdYYVSs43QOhsv68OViBLs1xh X-Proofpoint-ORIG-GUID: UJEX56f8_nvuAvKplaUwcbHZ5VFpEnRd X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 phishscore=0 priorityscore=1501 mlxscore=0 lowpriorityscore=0 mlxlogscore=999 clxscore=1015 malwarescore=0 suspectscore=0 spamscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org The address is a 64 bit value, specifying a 32 bit value can crash the guest. In this case things worked out with -O2 but not -O0. Signed-off-by: Janis Schoetterl-Glausch Fixes: 1bb873495a9e ("KVM: s390: selftests: Add more copy memop tests") Reviewed-by: Thomas Huth --- tools/testing/selftests/kvm/s390x/memop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/s390x/memop.c b/tools/testing/selftests/kvm/s390x/memop.c index 1ae5c01f9904..c5fec84ef3c2 100644 --- a/tools/testing/selftests/kvm/s390x/memop.c +++ b/tools/testing/selftests/kvm/s390x/memop.c @@ -514,7 +514,7 @@ static void guest_copy_key_fetch_prot_override(void) GUEST_SYNC(STAGE_INITED); set_storage_key_range(0, PAGE_SIZE, 0x18); set_storage_key_range((void *)last_page_addr, PAGE_SIZE, 0x0); - asm volatile ("sske %[key],%[addr]\n" :: [addr] "r"(0), [key] "r"(0x18) : "cc"); + asm volatile ("sske %[key],%[addr]\n" :: [addr] "r"(0L), [key] "r"(0x18) : "cc"); GUEST_SYNC(STAGE_SKEYS_SET); for (;;) { From patchwork Mon Feb 6 16:45:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130349 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 44C14C64EC7 for ; Mon, 6 Feb 2023 16:46:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230299AbjBFQqT (ORCPT ); Mon, 6 Feb 2023 11:46:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52554 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230260AbjBFQqS (ORCPT ); Mon, 6 Feb 2023 11:46:18 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BE7BA2884C; Mon, 6 Feb 2023 08:46:17 -0800 (PST) Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316GiaUb032597; Mon, 6 Feb 2023 16:46:15 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=MfimxpAk7yrTbQD4iiKgsDkpDIiumYmt7tkHoxXNkls=; b=gcATaS1jOEhHIFJ4FoNhmAOnhppxgZaCUTvZ3lx+TsiEI0Np/Fa7lpKzl7s209ZQ9NoO dFn8/bnetdlksCISy2k/bNNGDR9pPjWywlQrJTfqfJbOBJ+yAsFRvhsT8/lilDBuuAem x/whK9tPiUlFWCVKnsHrQi1+owvEUzJ/N/5LdrtwnqVvGSEvBXe6KJBZnkLlPgstgoyo 8BNBuJ7pAr2klthhhkOC8a/Cbx9z0w3NcbKVegS6ju0Ws9hoDMVSyJ2Fw2YvSHuTwTcN mcuHTSCkZHjeu8PolbRnFPmjIxSzeaoxW7EfC0P3a1esAtlifTsndGbRA/pN5Zfe7Q4r pQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk56q8ax8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:15 +0000 Received: from m0187473.ppops.net (m0187473.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 316GikLB033523; Mon, 6 Feb 2023 16:46:14 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 3nk56q8aw9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:14 +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 3161E5jw002393; Mon, 6 Feb 2023 16:46:12 GMT Received: from smtprelay04.fra02v.mail.ibm.com ([9.218.2.228]) by ppma03ams.nl.ibm.com (PPS) with ESMTPS id 3nhf06jm62-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:12 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay04.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316Gk8iN24314194 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:08 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 88F0420040; Mon, 6 Feb 2023 16:46:08 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1DCA42004E; Mon, 6 Feb 2023 16:46:08 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:08 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle Subject: [PATCH v7 08/14] KVM: s390: Move common code of mem_op functions into function Date: Mon, 6 Feb 2023 17:45:56 +0100 Message-Id: <20230206164602.138068-9-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: HkjXGiUGOixMlcH_D04TqzFiJeZgjRLQ X-Proofpoint-GUID: I_dgNZVwdKhIPh0BgNSENdMLgeDkwCvX X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 lowpriorityscore=0 mlxscore=0 priorityscore=1501 spamscore=0 mlxlogscore=999 suspectscore=0 phishscore=0 malwarescore=0 adultscore=0 clxscore=1015 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org The vcpu and vm mem_op ioctl implementations share some functionality. Move argument checking into a function and call it from both implementations. This allows code reuse in case of additional future mem_op operations. Suggested-by: Janosch Frank Signed-off-by: Janis Schoetterl-Glausch Reviewed-by: Janosch Frank --- arch/s390/kvm/kvm-s390.c | 52 +++++++++++++++++++--------------------- 1 file changed, 24 insertions(+), 28 deletions(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index e4890e04b210..0367c1a7e69a 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -2764,24 +2764,32 @@ static int kvm_s390_handle_pv(struct kvm *kvm, struct kvm_pv_cmd *cmd) return r; } -static bool access_key_invalid(u8 access_key) +static int mem_op_validate_common(struct kvm_s390_mem_op *mop, u64 supported_flags) { - return access_key > 0xf; + if (mop->flags & ~supported_flags || !mop->size) + return -EINVAL; + if (mop->size > MEM_OP_MAX_SIZE) + return -E2BIG; + if (mop->flags & KVM_S390_MEMOP_F_SKEY_PROTECTION) { + if (mop->key > 0xf) + return -EINVAL; + } else { + mop->key = 0; + } + return 0; } static int kvm_s390_vm_mem_op(struct kvm *kvm, struct kvm_s390_mem_op *mop) { void __user *uaddr = (void __user *)mop->buf; - u64 supported_flags; void *tmpbuf = NULL; int r, srcu_idx; - supported_flags = KVM_S390_MEMOP_F_SKEY_PROTECTION - | KVM_S390_MEMOP_F_CHECK_ONLY; - if (mop->flags & ~supported_flags || !mop->size) - return -EINVAL; - if (mop->size > MEM_OP_MAX_SIZE) - return -E2BIG; + r = mem_op_validate_common(mop, KVM_S390_MEMOP_F_SKEY_PROTECTION | + KVM_S390_MEMOP_F_CHECK_ONLY); + if (r) + return r; + /* * This is technically a heuristic only, if the kvm->lock is not * taken, it is not guaranteed that the vm is/remains non-protected. @@ -2793,12 +2801,6 @@ static int kvm_s390_vm_mem_op(struct kvm *kvm, struct kvm_s390_mem_op *mop) */ if (kvm_s390_pv_get_handle(kvm)) return -EINVAL; - if (mop->flags & KVM_S390_MEMOP_F_SKEY_PROTECTION) { - if (access_key_invalid(mop->key)) - return -EINVAL; - } else { - mop->key = 0; - } if (!(mop->flags & KVM_S390_MEMOP_F_CHECK_ONLY)) { tmpbuf = vmalloc(mop->size); if (!tmpbuf) @@ -5250,23 +5252,17 @@ static long kvm_s390_vcpu_mem_op(struct kvm_vcpu *vcpu, { void __user *uaddr = (void __user *)mop->buf; void *tmpbuf = NULL; - int r = 0; - const u64 supported_flags = KVM_S390_MEMOP_F_INJECT_EXCEPTION - | KVM_S390_MEMOP_F_CHECK_ONLY - | KVM_S390_MEMOP_F_SKEY_PROTECTION; + int r; - if (mop->flags & ~supported_flags || mop->ar >= NUM_ACRS || !mop->size) + r = mem_op_validate_common(mop, KVM_S390_MEMOP_F_INJECT_EXCEPTION | + KVM_S390_MEMOP_F_CHECK_ONLY | + KVM_S390_MEMOP_F_SKEY_PROTECTION); + if (r) + return r; + if (mop->ar >= NUM_ACRS) return -EINVAL; - if (mop->size > MEM_OP_MAX_SIZE) - return -E2BIG; if (kvm_s390_pv_cpu_is_protected(vcpu)) return -EINVAL; - if (mop->flags & KVM_S390_MEMOP_F_SKEY_PROTECTION) { - if (access_key_invalid(mop->key)) - return -EINVAL; - } else { - mop->key = 0; - } if (!(mop->flags & KVM_S390_MEMOP_F_CHECK_ONLY)) { tmpbuf = vmalloc(mop->size); if (!tmpbuf) From patchwork Mon Feb 6 16:45:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130350 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 E5986C636D4 for ; Mon, 6 Feb 2023 16:46:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230388AbjBFQqV (ORCPT ); Mon, 6 Feb 2023 11:46:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52580 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230324AbjBFQqU (ORCPT ); Mon, 6 Feb 2023 11:46:20 -0500 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54DA125E2A; Mon, 6 Feb 2023 08:46:19 -0800 (PST) Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316GjLkE027846; Mon, 6 Feb 2023 16:46:15 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=C40ZJntMyqrcalxbNSfEu9RUVWoSIhODXs0/a6CxYlc=; b=Rc0zKPJzgPCBFo265T973kBjzGAGS+lnjtpFmHVY9lYkVoC06TwK6pWOpglvqiKsB6H9 c9OzKufUQToOURaukReaPfyg0LKk7/P0ClSm5fuagolV05ROX3R6bpsyw8uczGCLd2iR 35AuDEWsIrn8RKeXAExktAoBHzHtSl46S55qeXoWyBCcDwEylrSC0SWIy+TaJPUTbGWo LmzQ/4lY2cl7FjXARIb2oBnpVol7fW/qC9ChvtxYyXJwl8JETdooaA6SfRVg6r5o60Jo VLvX+C2YlNnkZdRsN6Idakhxw9OJg/H0p/WyHrf2yVuGVDnP3N/6/HuGAdb2DKT6ndZe ww== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk3rmbf4j-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:15 +0000 Received: from m0098417.ppops.net (m0098417.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 316GjdrB028960; Mon, 6 Feb 2023 16:46:14 GMT Received: from ppma02fra.de.ibm.com (47.49.7a9f.ip4.static.sl-reverse.com [159.122.73.71]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk3rmbf3n-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:14 +0000 Received: from pps.filterd (ppma02fra.de.ibm.com [127.0.0.1]) by ppma02fra.de.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 315DvivH005516; Mon, 6 Feb 2023 16:46:12 GMT Received: from smtprelay05.fra02v.mail.ibm.com ([9.218.2.225]) by ppma02fra.de.ibm.com (PPS) with ESMTPS id 3nhf06sv6x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:12 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316Gk90e42992040 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:09 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 12C1420040; Mon, 6 Feb 2023 16:46:09 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 94F7120043; Mon, 6 Feb 2023 16:46:08 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:08 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle , Thomas Huth Subject: [PATCH v7 09/14] KVM: s390: Dispatch to implementing function at top level of vm mem_op Date: Mon, 6 Feb 2023 17:45:57 +0100 Message-Id: <20230206164602.138068-10-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: vQp4nn4U6iMn9Qok-aC0yQMF2tSTaTjs X-Proofpoint-ORIG-GUID: OvX0vlJCrIW_TkW8ooRU44VPX8ev3V-r X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 priorityscore=1501 spamscore=0 malwarescore=0 clxscore=1015 bulkscore=0 adultscore=0 mlxscore=0 impostorscore=0 phishscore=0 suspectscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Instead of having one function covering all mem_op operations, have a function implementing absolute access and dispatch to that function in its caller, based on the operation code. This way additional future operations can be implemented by adding an implementing function without changing existing operations. Suggested-by: Janosch Frank Signed-off-by: Janis Schoetterl-Glausch Reviewed-by: Thomas Huth Reviewed-by: Janosch Frank --- arch/s390/kvm/kvm-s390.c | 38 ++++++++++++++++++++++++-------------- 1 file changed, 24 insertions(+), 14 deletions(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 0367c1a7e69a..707967a296f1 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -2779,7 +2779,7 @@ static int mem_op_validate_common(struct kvm_s390_mem_op *mop, u64 supported_fla return 0; } -static int kvm_s390_vm_mem_op(struct kvm *kvm, struct kvm_s390_mem_op *mop) +static int kvm_s390_vm_mem_op_abs(struct kvm *kvm, struct kvm_s390_mem_op *mop) { void __user *uaddr = (void __user *)mop->buf; void *tmpbuf = NULL; @@ -2790,17 +2790,6 @@ static int kvm_s390_vm_mem_op(struct kvm *kvm, struct kvm_s390_mem_op *mop) if (r) return r; - /* - * This is technically a heuristic only, if the kvm->lock is not - * taken, it is not guaranteed that the vm is/remains non-protected. - * This is ok from a kernel perspective, wrongdoing is detected - * on the access, -EFAULT is returned and the vm may crash the - * next time it accesses the memory in question. - * There is no sane usecase to do switching and a memop on two - * different CPUs at the same time. - */ - if (kvm_s390_pv_get_handle(kvm)) - return -EINVAL; if (!(mop->flags & KVM_S390_MEMOP_F_CHECK_ONLY)) { tmpbuf = vmalloc(mop->size); if (!tmpbuf) @@ -2841,8 +2830,6 @@ static int kvm_s390_vm_mem_op(struct kvm *kvm, struct kvm_s390_mem_op *mop) } break; } - default: - r = -EINVAL; } out_unlock: @@ -2852,6 +2839,29 @@ static int kvm_s390_vm_mem_op(struct kvm *kvm, struct kvm_s390_mem_op *mop) return r; } +static int kvm_s390_vm_mem_op(struct kvm *kvm, struct kvm_s390_mem_op *mop) +{ + /* + * This is technically a heuristic only, if the kvm->lock is not + * taken, it is not guaranteed that the vm is/remains non-protected. + * This is ok from a kernel perspective, wrongdoing is detected + * on the access, -EFAULT is returned and the vm may crash the + * next time it accesses the memory in question. + * There is no sane usecase to do switching and a memop on two + * different CPUs at the same time. + */ + if (kvm_s390_pv_get_handle(kvm)) + return -EINVAL; + + switch (mop->op) { + case KVM_S390_MEMOP_ABSOLUTE_READ: + case KVM_S390_MEMOP_ABSOLUTE_WRITE: + return kvm_s390_vm_mem_op_abs(kvm, mop); + default: + return -EINVAL; + } +} + long kvm_arch_vm_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg) { From patchwork Mon Feb 6 16:45:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130354 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 58F33C64EC6 for ; Mon, 6 Feb 2023 16:46:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230466AbjBFQq0 (ORCPT ); Mon, 6 Feb 2023 11:46:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52620 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230372AbjBFQqV (ORCPT ); Mon, 6 Feb 2023 11:46:21 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 03D8B28D16; Mon, 6 Feb 2023 08:46:20 -0800 (PST) Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316GiWr0011121; Mon, 6 Feb 2023 16:46:16 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=RRnhPwXIY5/2buECw/ItU1dkcga38TUwkiSdZL+H9U8=; b=UszWp4+3lWCUTEfd7jGd3yRJ1CIphcLkjHPf9kYpPFZJE9+nuIHHF8QiumEvgpuQNZ8s 7EdVOYGURFgZ+5+TmgEsSN05qW6MGbW7X+2KFUBKd9KQ8EIkvkZ1XRn7/VQMhnBVMN7I qJ7h33wckVl3EuGMRjIy4/uZnsKhYVMAGhdtwvGLqVGNxNwUK2vTyCdS3tm8gc8GBhx5 Q3B4za2g1Q9AEgINwxPf7SSTfUy3OmUw5+Eg2StKFMnw+9dnhbvFsfGuVujzyEeoW/eh 3D0xLempSAfh097+aDq6ymahZQqb93MdoDYqTlXGqFZNi97F3eVjB0x/Um1go+pkqnZa +A== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk51mgp9c-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:16 +0000 Received: from m0098396.ppops.net (m0098396.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 316GinYn012203; Mon, 6 Feb 2023 16:46:15 GMT 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 3nk51mgp81-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:15 +0000 Received: from pps.filterd (ppma04ams.nl.ibm.com [127.0.0.1]) by ppma04ams.nl.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 315NZgGx023824; Mon, 6 Feb 2023 16:46:13 GMT Received: from smtprelay05.fra02v.mail.ibm.com ([9.218.2.225]) by ppma04ams.nl.ibm.com (PPS) with ESMTPS id 3nhf06tmsy-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:13 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316Gk9OR42992042 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:09 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8D8C620040; Mon, 6 Feb 2023 16:46:09 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1E2B92004B; Mon, 6 Feb 2023 16:46:09 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:09 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle , Thomas Huth Subject: [PATCH v7 10/14] KVM: s390: Refactor absolute vm mem_op function Date: Mon, 6 Feb 2023 17:45:58 +0100 Message-Id: <20230206164602.138068-11-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: fKgO01PJ7SQyAf6yd0WpMeEOGQrshbpV X-Proofpoint-ORIG-GUID: O79jXpr-GRaavHwbJZR6T2ZpGRPclzm_ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 suspectscore=0 mlxlogscore=977 spamscore=0 adultscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Remove code duplication with regards to the CHECK_ONLY flag. Decrease the number of indents. No functional change indented. Suggested-by: Janosch Frank Signed-off-by: Janis Schoetterl-Glausch Reviewed-by: Thomas Huth Reviewed-by: Janosch Frank Reviewed-by: Janosch Frank --- Cosmetic only, can be dropped arch/s390/kvm/kvm-s390.c | 43 +++++++++++++++++----------------------- 1 file changed, 18 insertions(+), 25 deletions(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 707967a296f1..1f94b18f1cb5 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -2782,6 +2782,7 @@ static int mem_op_validate_common(struct kvm_s390_mem_op *mop, u64 supported_fla static int kvm_s390_vm_mem_op_abs(struct kvm *kvm, struct kvm_s390_mem_op *mop) { void __user *uaddr = (void __user *)mop->buf; + enum gacc_mode acc_mode; void *tmpbuf = NULL; int r, srcu_idx; @@ -2803,33 +2804,25 @@ static int kvm_s390_vm_mem_op_abs(struct kvm *kvm, struct kvm_s390_mem_op *mop) goto out_unlock; } - switch (mop->op) { - case KVM_S390_MEMOP_ABSOLUTE_READ: { - if (mop->flags & KVM_S390_MEMOP_F_CHECK_ONLY) { - r = check_gpa_range(kvm, mop->gaddr, mop->size, GACC_FETCH, mop->key); - } else { - r = access_guest_abs_with_key(kvm, mop->gaddr, tmpbuf, - mop->size, GACC_FETCH, mop->key); - if (r == 0) { - if (copy_to_user(uaddr, tmpbuf, mop->size)) - r = -EFAULT; - } - } - break; + acc_mode = mop->op == KVM_S390_MEMOP_ABSOLUTE_READ ? GACC_FETCH : GACC_STORE; + if (mop->flags & KVM_S390_MEMOP_F_CHECK_ONLY) { + r = check_gpa_range(kvm, mop->gaddr, mop->size, acc_mode, mop->key); + goto out_unlock; } - case KVM_S390_MEMOP_ABSOLUTE_WRITE: { - if (mop->flags & KVM_S390_MEMOP_F_CHECK_ONLY) { - r = check_gpa_range(kvm, mop->gaddr, mop->size, GACC_STORE, mop->key); - } else { - if (copy_from_user(tmpbuf, uaddr, mop->size)) { - r = -EFAULT; - break; - } - r = access_guest_abs_with_key(kvm, mop->gaddr, tmpbuf, - mop->size, GACC_STORE, mop->key); + if (acc_mode == GACC_FETCH) { + r = access_guest_abs_with_key(kvm, mop->gaddr, tmpbuf, + mop->size, GACC_FETCH, mop->key); + if (r) + goto out_unlock; + if (copy_to_user(uaddr, tmpbuf, mop->size)) + r = -EFAULT; + } else { + if (copy_from_user(tmpbuf, uaddr, mop->size)) { + r = -EFAULT; + goto out_unlock; } - break; - } + r = access_guest_abs_with_key(kvm, mop->gaddr, tmpbuf, + mop->size, GACC_STORE, mop->key); } out_unlock: From patchwork Mon Feb 6 16:45:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130353 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 1E751C64ED6 for ; Mon, 6 Feb 2023 16:46:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230471AbjBFQq0 (ORCPT ); Mon, 6 Feb 2023 11:46:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52618 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230364AbjBFQqV (ORCPT ); Mon, 6 Feb 2023 11:46:21 -0500 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D4F2C1D93F; Mon, 6 Feb 2023 08:46:19 -0800 (PST) Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316GjKLp027788; Mon, 6 Feb 2023 16:46:16 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=ceGEHTyO1+iOh7mznEgt9i8DfEpEWeap35zW89VTIpw=; b=drilre+qfI51irvI4QSD9UkoWDT+Gq1lydBXE8A+CXmFb30Mdw/29AtRqoHOQ+MlKR64 EuNJGrGUgJ7WN8oBAdez4AQU3lppVT1W1YCGHXWNW/JAgLH/7I9BF06UnFeXMHHedRfO r4NSM3HXvnvPB/mOlXTv5LM3DtEKoN9RkUcZyjGbwZfraEMab9Yo8ohNQ7/HD62+okZD 8mqOvcAGED94Q1HLHJ37HHGcZisCNdCZyVWLA67Bmst/4zQinOYoroVUJ5e4syfJu5FW o6XyWibC0Kg0CHazVKDfid3zdNhpIuM4s0bMiaKtkRL+qeoOxWWyW1AFdPP4Rm3i2B0B WQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk3rmbf51-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:16 +0000 Received: from m0098417.ppops.net (m0098417.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 316GjSrY028323; Mon, 6 Feb 2023 16:46:15 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 3nk3rmbf3w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:15 +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 316GRFA0002355; Mon, 6 Feb 2023 16:46:13 GMT Received: from smtprelay06.fra02v.mail.ibm.com ([9.218.2.230]) by ppma03ams.nl.ibm.com (PPS) with ESMTPS id 3nhf06jm64-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:13 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316GkAX626280472 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:10 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1015820043; Mon, 6 Feb 2023 16:46:10 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 991652004D; Mon, 6 Feb 2023 16:46:09 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:09 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle Subject: [PATCH v7 11/14] KVM: s390: Refactor vcpu mem_op function Date: Mon, 6 Feb 2023 17:45:59 +0100 Message-Id: <20230206164602.138068-12-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 4mM6DFqhhqv1i-cAkb2IrRoz5ItfedFC X-Proofpoint-ORIG-GUID: rpgNK2Q9__yqD3X8lIvcAPymfTmLar6R X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=815 priorityscore=1501 spamscore=0 malwarescore=0 clxscore=1015 bulkscore=0 adultscore=0 mlxscore=0 impostorscore=0 phishscore=0 suspectscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Remove code duplication with regards to the CHECK_ONLY flag. Decrease the number of indents. No functional change indented. Suggested-by: Janosch Frank Signed-off-by: Janis Schoetterl-Glausch --- Cosmetic only, can be dropped arch/s390/kvm/kvm-s390.c | 36 +++++++++++++++++------------------- 1 file changed, 17 insertions(+), 19 deletions(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 1f94b18f1cb5..8a74b7b62ecf 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -5254,6 +5254,7 @@ static long kvm_s390_vcpu_mem_op(struct kvm_vcpu *vcpu, struct kvm_s390_mem_op *mop) { void __user *uaddr = (void __user *)mop->buf; + enum gacc_mode acc_mode; void *tmpbuf = NULL; int r; @@ -5272,38 +5273,35 @@ static long kvm_s390_vcpu_mem_op(struct kvm_vcpu *vcpu, return -ENOMEM; } - switch (mop->op) { - case KVM_S390_MEMOP_LOGICAL_READ: - if (mop->flags & KVM_S390_MEMOP_F_CHECK_ONLY) { - r = check_gva_range(vcpu, mop->gaddr, mop->ar, mop->size, - GACC_FETCH, mop->key); - break; - } + acc_mode = mop->op == KVM_S390_MEMOP_LOGICAL_READ ? GACC_FETCH : GACC_STORE; + if (mop->flags & KVM_S390_MEMOP_F_CHECK_ONLY) { + r = check_gva_range(vcpu, mop->gaddr, mop->ar, mop->size, + acc_mode, mop->key); + goto out_inject; + } + if (acc_mode == GACC_FETCH) { r = read_guest_with_key(vcpu, mop->gaddr, mop->ar, tmpbuf, mop->size, mop->key); - if (r == 0) { - if (copy_to_user(uaddr, tmpbuf, mop->size)) - r = -EFAULT; - } - break; - case KVM_S390_MEMOP_LOGICAL_WRITE: - if (mop->flags & KVM_S390_MEMOP_F_CHECK_ONLY) { - r = check_gva_range(vcpu, mop->gaddr, mop->ar, mop->size, - GACC_STORE, mop->key); - break; + if (r) + goto out_inject; + if (copy_to_user(uaddr, tmpbuf, mop->size)) { + r = -EFAULT; + goto out_free; } + } else { if (copy_from_user(tmpbuf, uaddr, mop->size)) { r = -EFAULT; - break; + goto out_free; } r = write_guest_with_key(vcpu, mop->gaddr, mop->ar, tmpbuf, mop->size, mop->key); - break; } +out_inject: if (r > 0 && (mop->flags & KVM_S390_MEMOP_F_INJECT_EXCEPTION) != 0) kvm_s390_inject_prog_irq(vcpu, &vcpu->arch.pgm); +out_free: vfree(tmpbuf); return r; } From patchwork Mon Feb 6 16:46:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130359 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 EF428C677F1 for ; Mon, 6 Feb 2023 16:46:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231203AbjBFQqf (ORCPT ); Mon, 6 Feb 2023 11:46:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52640 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230408AbjBFQqX (ORCPT ); Mon, 6 Feb 2023 11:46:23 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 92C6228D1F; Mon, 6 Feb 2023 08:46:20 -0800 (PST) Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316GiWvO011116; Mon, 6 Feb 2023 16:46:17 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 : mime-version : content-transfer-encoding; s=pp1; bh=QPD1MrXyBQd+lcXepALqVN2kSoT8JOuhbgmb2MZE3GA=; b=BJh12km44+qkNw5M2bpEYum99hT0dqGfnxTNROraVaHsXRxZNybvf3SMzFqrO3V7GZsh 6uW74biti7d6vafMVNYjXa1Z8O18znHyIZlj/0UlbL7SuBlZHxQXhKPB5mqkrcPKeMNB bphFIB8fQszajQSfRmDDdzl0fpl7QijY8PKHTyW07uPr07jFgwlMcP8eZqqL47DMViEW aj1MrFiI6dVXv2EMvir5g0QE6uMIoC49KCMw7ZoeaWQaiX06+nZF7rcoyIYarByFZ8lq MDmH6XbbQF+prKuJJRG0X6l2dsXdW0mzokpg3vMh1umKMDzjClLRpPY5QJqtxEOyDuwP iw== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk51mgpa1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:17 +0000 Received: from m0098396.ppops.net (m0098396.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 316GiWBs011125; Mon, 6 Feb 2023 16:46:16 GMT Received: from ppma02fra.de.ibm.com (47.49.7a9f.ip4.static.sl-reverse.com [159.122.73.71]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk51mgp8m-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:16 +0000 Received: from pps.filterd (ppma02fra.de.ibm.com [127.0.0.1]) by ppma02fra.de.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 31644LwA010414; Mon, 6 Feb 2023 16:46:14 GMT Received: from smtprelay06.fra02v.mail.ibm.com ([9.218.2.230]) by ppma02fra.de.ibm.com (PPS) with ESMTPS id 3nhf06sv6y-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:14 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316GkADt25756076 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:10 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8C55820043; Mon, 6 Feb 2023 16:46:10 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1B2072004B; Mon, 6 Feb 2023 16:46:10 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:10 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle Subject: [PATCH v7 12/14] KVM: s390: Extend MEM_OP ioctl by storage key checked cmpxchg Date: Mon, 6 Feb 2023 17:46:00 +0100 Message-Id: <20230206164602.138068-13-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 2QsV-yUFnBU4W5SFSusT005pUIrJDE9f X-Proofpoint-ORIG-GUID: mUVznMEM9T28b2oEjNIM9HZX2aLV8Bhd X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 suspectscore=0 mlxlogscore=999 spamscore=0 adultscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org User space can use the MEM_OP ioctl to make storage key checked reads and writes to the guest, however, it has no way of performing atomic, key checked, accesses to the guest. Extend the MEM_OP ioctl in order to allow for this, by adding a cmpxchg op. For now, support this op for absolute accesses only. This op can be used, for example, to set the device-state-change indicator and the adapter-local-summary indicator atomically. Signed-off-by: Janis Schoetterl-Glausch Reviewed-by: Janosch Frank --- include/uapi/linux/kvm.h | 8 +++ arch/s390/kvm/gaccess.h | 3 ++ arch/s390/kvm/gaccess.c | 109 +++++++++++++++++++++++++++++++++++++++ arch/s390/kvm/kvm-s390.c | 56 +++++++++++++++++++- 4 files changed, 175 insertions(+), 1 deletion(-) diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 55155e262646..d2f30463c133 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -583,6 +583,8 @@ struct kvm_s390_mem_op { struct { __u8 ar; /* the access register number */ __u8 key; /* access key, ignored if flag unset */ + __u8 pad1[6]; /* ignored */ + __u64 old_addr; /* ignored if cmpxchg flag unset */ }; __u32 sida_offset; /* offset into the sida */ __u8 reserved[32]; /* ignored */ @@ -595,11 +597,17 @@ struct kvm_s390_mem_op { #define KVM_S390_MEMOP_SIDA_WRITE 3 #define KVM_S390_MEMOP_ABSOLUTE_READ 4 #define KVM_S390_MEMOP_ABSOLUTE_WRITE 5 +#define KVM_S390_MEMOP_ABSOLUTE_CMPXCHG 6 + /* flags for kvm_s390_mem_op->flags */ #define KVM_S390_MEMOP_F_CHECK_ONLY (1ULL << 0) #define KVM_S390_MEMOP_F_INJECT_EXCEPTION (1ULL << 1) #define KVM_S390_MEMOP_F_SKEY_PROTECTION (1ULL << 2) +/* flags specifying extension support via KVM_CAP_S390_MEM_OP_EXTENSION */ +#define KVM_S390_MEMOP_EXTENSION_CAP_BASE (1 << 0) +#define KVM_S390_MEMOP_EXTENSION_CAP_CMPXCHG (1 << 1) + /* for KVM_INTERRUPT */ struct kvm_interrupt { /* in */ diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h index 9408d6cc8e2c..b320d12aa049 100644 --- a/arch/s390/kvm/gaccess.h +++ b/arch/s390/kvm/gaccess.h @@ -206,6 +206,9 @@ int access_guest_with_key(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar, int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra, void *data, unsigned long len, enum gacc_mode mode); +int cmpxchg_guest_abs_with_key(struct kvm *kvm, gpa_t gpa, int len, __uint128_t *old, + __uint128_t new, u8 access_key, bool *success); + /** * write_guest_with_key - copy data from kernel space to guest space * @vcpu: virtual cpu diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c index 0243b6e38d36..3eb85f254881 100644 --- a/arch/s390/kvm/gaccess.c +++ b/arch/s390/kvm/gaccess.c @@ -1161,6 +1161,115 @@ int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra, return rc; } +/** + * cmpxchg_guest_abs_with_key() - Perform cmpxchg on guest absolute address. + * @kvm: Virtual machine instance. + * @gpa: Absolute guest address of the location to be changed. + * @len: Operand length of the cmpxchg, required: 1 <= len <= 16. Providing a + * non power of two will result in failure. + * @old_addr: Pointer to old value. If the location at @gpa contains this value, + * the exchange will succeed. After calling cmpxchg_guest_abs_with_key() + * *@old_addr contains the value at @gpa before the attempt to + * exchange the value. + * @new: The value to place at @gpa. + * @access_key: The access key to use for the guest access. + * @success: output value indicating if an exchange occurred. + * + * Atomically exchange the value at @gpa by @new, if it contains *@old. + * Honors storage keys. + * + * Return: * 0: successful exchange + * * >0: a program interruption code indicating the reason cmpxchg could + * not be attempted + * * -EINVAL: address misaligned or len not power of two + * * -EAGAIN: transient failure (len 1 or 2) + * * -EOPNOTSUPP: read-only memslot (should never occur) + */ +int cmpxchg_guest_abs_with_key(struct kvm *kvm, gpa_t gpa, int len, + __uint128_t *old_addr, __uint128_t new, + u8 access_key, bool *success) +{ + gfn_t gfn = gpa_to_gfn(gpa); + struct kvm_memory_slot *slot = gfn_to_memslot(kvm, gfn); + bool writable; + hva_t hva; + int ret; + + if (!IS_ALIGNED(gpa, len)) + return -EINVAL; + + hva = gfn_to_hva_memslot_prot(slot, gfn, &writable); + if (kvm_is_error_hva(hva)) + return PGM_ADDRESSING; + /* + * Check if it's a read-only memslot, even though that cannot occur + * since those are unsupported. + * Don't try to actually handle that case. + */ + if (!writable) + return -EOPNOTSUPP; + + hva += offset_in_page(gpa); + /* + * The cmpxchg_user_key macro depends on the type of "old", so we need + * a case for each valid length and get some code duplication as long + * as we don't introduce a new macro. + */ + switch (len) { + case 1: { + u8 old; + + ret = cmpxchg_user_key((u8 __user *)hva, &old, *old_addr, new, access_key); + *success = !ret && old == *old_addr; + *old_addr = old; + break; + } + case 2: { + u16 old; + + ret = cmpxchg_user_key((u16 __user *)hva, &old, *old_addr, new, access_key); + *success = !ret && old == *old_addr; + *old_addr = old; + break; + } + case 4: { + u32 old; + + ret = cmpxchg_user_key((u32 __user *)hva, &old, *old_addr, new, access_key); + *success = !ret && old == *old_addr; + *old_addr = old; + break; + } + case 8: { + u64 old; + + ret = cmpxchg_user_key((u64 __user *)hva, &old, *old_addr, new, access_key); + *success = !ret && old == *old_addr; + *old_addr = old; + break; + } + case 16: { + __uint128_t old; + + ret = cmpxchg_user_key((__uint128_t __user *)hva, &old, *old_addr, new, access_key); + *success = !ret && old == *old_addr; + *old_addr = old; + break; + } + default: + return -EINVAL; + } + if (*success) + mark_page_dirty_in_slot(kvm, slot, gfn); + /* + * Assume that the fault is caused by protection, either key protection + * or user page write protection. + */ + if (ret == -EFAULT) + ret = PGM_PROTECTION; + return ret; +} + /** * guest_translate_address_with_key - translate guest logical into guest absolute address * @vcpu: virtual cpu diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 8a74b7b62ecf..5b77269e6536 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -584,7 +584,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_S390_VCPU_RESETS: case KVM_CAP_SET_GUEST_DEBUG: case KVM_CAP_S390_DIAG318: - case KVM_CAP_S390_MEM_OP_EXTENSION: r = 1; break; case KVM_CAP_SET_GUEST_DEBUG2: @@ -598,6 +597,15 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_S390_MEM_OP: r = MEM_OP_MAX_SIZE; break; + case KVM_CAP_S390_MEM_OP_EXTENSION: + /* + * Flag bits indicating which extensions are supported. + * If r > 0, the base extension must also be supported/indicated, + * in order to maintain backwards compatibility. + */ + r = KVM_S390_MEMOP_EXTENSION_CAP_BASE | + KVM_S390_MEMOP_EXTENSION_CAP_CMPXCHG; + break; case KVM_CAP_NR_VCPUS: case KVM_CAP_MAX_VCPUS: case KVM_CAP_MAX_VCPU_ID: @@ -2832,6 +2840,50 @@ static int kvm_s390_vm_mem_op_abs(struct kvm *kvm, struct kvm_s390_mem_op *mop) return r; } +static int kvm_s390_vm_mem_op_cmpxchg(struct kvm *kvm, struct kvm_s390_mem_op *mop) +{ + void __user *uaddr = (void __user *)mop->buf; + void __user *old_addr = (void __user *)mop->old_addr; + union { + __uint128_t quad; + char raw[sizeof(__uint128_t)]; + } old = { .quad = 0}, new = { .quad = 0 }; + unsigned int off_in_quad = sizeof(new) - mop->size; + int r, srcu_idx; + bool success; + + r = mem_op_validate_common(mop, KVM_S390_MEMOP_F_SKEY_PROTECTION); + if (r) + return r; + /* + * This validates off_in_quad. Checking that size is a power + * of two is not necessary, as cmpxchg_guest_abs_with_key + * takes care of that + */ + if (mop->size > sizeof(new)) + return -EINVAL; + if (copy_from_user(&new.raw[off_in_quad], uaddr, mop->size)) + return -EFAULT; + if (copy_from_user(&old.raw[off_in_quad], old_addr, mop->size)) + return -EFAULT; + + srcu_idx = srcu_read_lock(&kvm->srcu); + + if (kvm_is_error_gpa(kvm, mop->gaddr)) { + r = PGM_ADDRESSING; + goto out_unlock; + } + + r = cmpxchg_guest_abs_with_key(kvm, mop->gaddr, mop->size, &old.quad, + new.quad, mop->key, &success); + if (!success && copy_to_user(old_addr, &old.raw[off_in_quad], mop->size)) + r = -EFAULT; + +out_unlock: + srcu_read_unlock(&kvm->srcu, srcu_idx); + return r; +} + static int kvm_s390_vm_mem_op(struct kvm *kvm, struct kvm_s390_mem_op *mop) { /* @@ -2850,6 +2902,8 @@ static int kvm_s390_vm_mem_op(struct kvm *kvm, struct kvm_s390_mem_op *mop) case KVM_S390_MEMOP_ABSOLUTE_READ: case KVM_S390_MEMOP_ABSOLUTE_WRITE: return kvm_s390_vm_mem_op_abs(kvm, mop); + case KVM_S390_MEMOP_ABSOLUTE_CMPXCHG: + return kvm_s390_vm_mem_op_cmpxchg(kvm, mop); default: return -EINVAL; } From patchwork Mon Feb 6 16:46:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130355 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 A52F6C63797 for ; Mon, 6 Feb 2023 16:46:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231158AbjBFQqd (ORCPT ); Mon, 6 Feb 2023 11:46:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230443AbjBFQqY (ORCPT ); Mon, 6 Feb 2023 11:46:24 -0500 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C39F428D2B; Mon, 6 Feb 2023 08:46:22 -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 316GjfZV029653; Mon, 6 Feb 2023 16:46:17 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 : mime-version : content-transfer-encoding; s=pp1; bh=Bz33V/9/MmwvLXUiAh3YTpkiLk6qxFE9ecgH4QTQ7qw=; b=BiUQ6kX1y6dtXbvp1kWFzCr7TfD0Oml2iklod/2RsffZNjBI0+nICOnZDRAtoEO5rE7i 7DRiQNxdfd0B2aba+Thw/2/tTa+Jkk9ZQf9cgbfzL2BrvYvfjNwm59YhSzL8RcYcTxSg EZ+M7XMnvRRynVMCxndzDAh+htcv/DkiIk+PFBfBZbPnw34/sidB84uZ8aMSw+cgQqLu FKQZnoi8cLKkZUl1oetr9h7o4AHy+7pq8CeN5nDNU/lKeuBejDy3wdVYjXqRnbRHcX/S ZYD4xOEOqi7wNjEbQ7l/uiOUVrVToeGkg4IU0Lefc0OkLnkb/TA1td9q9Tjwz5bJyLje SQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk51jgkmp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:17 +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 316GkG2o031778; Mon, 6 Feb 2023 16:46:17 GMT Received: from ppma05fra.de.ibm.com (6c.4a.5195.ip4.static.sl-reverse.com [149.81.74.108]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk51jgkkg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:16 +0000 Received: from pps.filterd (ppma05fra.de.ibm.com [127.0.0.1]) by ppma05fra.de.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 315IPR2l003647; Mon, 6 Feb 2023 16:46:14 GMT Received: from smtprelay07.fra02v.mail.ibm.com ([9.218.2.229]) by ppma05fra.de.ibm.com (PPS) with ESMTPS id 3nhf06sv3t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:14 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316GkBsr51577188 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:11 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0D21B20043; Mon, 6 Feb 2023 16:46:11 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9738F2004F; Mon, 6 Feb 2023 16:46:10 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:10 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle Subject: [PATCH v7 13/14] Documentation: KVM: s390: Describe KVM_S390_MEMOP_F_CMPXCHG Date: Mon, 6 Feb 2023 17:46:01 +0100 Message-Id: <20230206164602.138068-14-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 42RoMsJn4mnwGoDUIkTE0TzIbhfP90cL X-Proofpoint-ORIG-GUID: ZXysK4Z_W0wUXqwtqM4DngeODcjLv5y6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxscore=0 phishscore=0 spamscore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 bulkscore=0 priorityscore=1501 mlxlogscore=950 malwarescore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Describe the semantics of the new KVM_S390_MEMOP_F_CMPXCHG flag for absolute vm write memops which allows user space to perform (storage key checked) cmpxchg operations on guest memory. Signed-off-by: Janis Schoetterl-Glausch Reviewed-by: Janosch Frank --- Documentation/virt/kvm/api.rst | 29 ++++++++++++++++++++++++++--- 1 file changed, 26 insertions(+), 3 deletions(-) diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst index 0a67cb738013..d09d7223c2a6 100644 --- a/Documentation/virt/kvm/api.rst +++ b/Documentation/virt/kvm/api.rst @@ -3736,7 +3736,8 @@ The fields in each entry are defined as follows: :Parameters: struct kvm_s390_mem_op (in) :Returns: = 0 on success, < 0 on generic error (e.g. -EFAULT or -ENOMEM), - > 0 if an exception occurred while walking the page tables + 16 bit program exception code if the access causes such an exception, + other code > 0xffff with special meaning. Read or write data from/to the VM's memory. The KVM_CAP_S390_MEM_OP_EXTENSION capability specifies what functionality is @@ -3754,6 +3755,8 @@ Parameters are specified via the following structure:: struct { __u8 ar; /* the access register number */ __u8 key; /* access key, ignored if flag unset */ + __u8 pad1[6]; /* ignored */ + __u64 old_addr; /* ignored if flag unset */ }; __u32 sida_offset; /* offset into the sida */ __u8 reserved[32]; /* ignored */ @@ -3781,6 +3784,7 @@ Possible operations are: * ``KVM_S390_MEMOP_ABSOLUTE_WRITE`` * ``KVM_S390_MEMOP_SIDA_READ`` * ``KVM_S390_MEMOP_SIDA_WRITE`` + * ``KVM_S390_MEMOP_ABSOLUTE_CMPXCHG`` Logical read/write: ^^^^^^^^^^^^^^^^^^^ @@ -3829,7 +3833,7 @@ the checks required for storage key protection as one operation (as opposed to user space getting the storage keys, performing the checks, and accessing memory thereafter, which could lead to a delay between check and access). Absolute accesses are permitted for the VM ioctl if KVM_CAP_S390_MEM_OP_EXTENSION -is > 0. +has the KVM_S390_MEMOP_EXTENSION_CAP_BASE bit set. Currently absolute accesses are not permitted for VCPU ioctls. Absolute accesses are permitted for non-protected guests only. @@ -3837,7 +3841,26 @@ Supported flags: * ``KVM_S390_MEMOP_F_CHECK_ONLY`` * ``KVM_S390_MEMOP_F_SKEY_PROTECTION`` -The semantics of the flags are as for logical accesses. +The semantics of the flags common with logical accesses are as for logical +accesses. + +Absolute cmpxchg: +^^^^^^^^^^^^^^^^^ + +Perform cmpxchg on absolute guest memory. Intended for use with the +KVM_S390_MEMOP_F_SKEY_PROTECTION flag. +Instead of doing an unconditional write, the access occurs only if the target +location contains the value pointed to by "old_addr". +This is performed as an atomic cmpxchg with the length specified by the "size" +parameter. "size" must be a power of two up to and including 16. +If the exchange did not take place because the target value doesn't match the +old value, the value "old_addr" points to is replaced by the target value. +User space can tell if an exchange took place by checking if this replacement +occurred. The cmpxchg op is permitted for the VM ioctl if +KVM_CAP_S390_MEM_OP_EXTENSION has flag KVM_S390_MEMOP_EXTENSION_CAP_CMPXCHG set. + +Supported flags: + * ``KVM_S390_MEMOP_F_SKEY_PROTECTION`` SIDA read/write: ^^^^^^^^^^^^^^^^ From patchwork Mon Feb 6 16:46:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janis Schoetterl-Glausch X-Patchwork-Id: 13130356 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 6F53CC05027 for ; Mon, 6 Feb 2023 16:46:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230352AbjBFQqe (ORCPT ); Mon, 6 Feb 2023 11:46:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52642 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230416AbjBFQqX (ORCPT ); Mon, 6 Feb 2023 11:46:23 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4CBF929153; Mon, 6 Feb 2023 08:46:21 -0800 (PST) Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 316GiaBk032598; Mon, 6 Feb 2023 16:46:18 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=fPMhUD4tukmbzCc+d8mtCwh3pBunrWJSkTomUc5KSAk=; b=njeXwC+6HIBsBhebaNE4JfTIFmBLSXZS+ATto8yI05BY5T0IIEqcitm2aw3TyL7HYy5A DzaSRfen75Qs+NKoM3Ea4NU/B3llQpB/bqOecHHf1ik7spbJXMHO5dUI8SONR0Fr+1S7 5404gJtedYOjVC8FXndargGBH0tzXkhBv1W3Rjm9ExpHHrBZy2hhU5MrZpPdmGDAcE/1 reMJrdUcfPmzxSz1WGxAXYas3DUmEqk6YAl66A5bl3q3mtKnq8MBQSlGTa38IDLI5aMT /KXWx2RAssYqMVGkieTgNoOEizKoLTvIlNck/cMO3gBeVTXGqBQmWC3fBNY+5KL0Eyrh DA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nk56q8b02-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:18 +0000 Received: from m0187473.ppops.net (m0187473.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 316Giia7033013; Mon, 6 Feb 2023 16:46:17 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 3nk56q8axq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:17 +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 3161S3JI001883; Mon, 6 Feb 2023 16:46:15 GMT Received: from smtprelay07.fra02v.mail.ibm.com ([9.218.2.229]) by ppma03ams.nl.ibm.com (PPS) with ESMTPS id 3nhf06jm66-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 16:46:15 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 316GkB4A34472332 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Feb 2023 16:46:11 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9232C2004B; Mon, 6 Feb 2023 16:46:11 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 18AEB20040; Mon, 6 Feb 2023 16:46:11 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Feb 2023 16:46:11 +0000 (GMT) From: Janis Schoetterl-Glausch To: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Heiko Carstens , Vasily Gorbik , Alexander Gordeev Cc: Janis Schoetterl-Glausch , David Hildenbrand , Jonathan Corbet , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sven Schnelle Subject: [PATCH v7 14/14] KVM: s390: selftest: memop: Add cmpxchg tests Date: Mon, 6 Feb 2023 17:46:02 +0100 Message-Id: <20230206164602.138068-15-scgl@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230206164602.138068-1-scgl@linux.ibm.com> References: <20230206164602.138068-1-scgl@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: l4ncfuHvgzICLjSMCxjM5KKBlJciriTL X-Proofpoint-GUID: OOp-WPlBBGPPrR2OCzFfkBN1HIczNczE X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_07,2023-02-06_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 lowpriorityscore=0 mlxscore=0 priorityscore=1501 spamscore=0 mlxlogscore=999 suspectscore=0 phishscore=0 malwarescore=0 adultscore=0 clxscore=1015 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060144 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Test successful exchange, unsuccessful exchange, storage key protection and invalid arguments. Signed-off-by: Janis Schoetterl-Glausch Acked-by: Janosch Frank --- tools/testing/selftests/kvm/s390x/memop.c | 410 +++++++++++++++++++++- 1 file changed, 395 insertions(+), 15 deletions(-) diff --git a/tools/testing/selftests/kvm/s390x/memop.c b/tools/testing/selftests/kvm/s390x/memop.c index c5fec84ef3c2..06e0dfb4006f 100644 --- a/tools/testing/selftests/kvm/s390x/memop.c +++ b/tools/testing/selftests/kvm/s390x/memop.c @@ -9,6 +9,7 @@ #include #include #include +#include #include @@ -26,6 +27,7 @@ enum mop_target { enum mop_access_mode { READ, WRITE, + CMPXCHG, }; struct mop_desc { @@ -44,13 +46,16 @@ struct mop_desc { enum mop_access_mode mode; void *buf; uint32_t sida_offset; + void *old; + uint8_t old_value[16]; + bool *cmpxchg_success; uint8_t ar; uint8_t key; }; const uint8_t NO_KEY = 0xff; -static struct kvm_s390_mem_op ksmo_from_desc(const struct mop_desc *desc) +static struct kvm_s390_mem_op ksmo_from_desc(struct mop_desc *desc) { struct kvm_s390_mem_op ksmo = { .gaddr = (uintptr_t)desc->gaddr, @@ -77,6 +82,11 @@ static struct kvm_s390_mem_op ksmo_from_desc(const struct mop_desc *desc) ksmo.op = KVM_S390_MEMOP_ABSOLUTE_READ; if (desc->mode == WRITE) ksmo.op = KVM_S390_MEMOP_ABSOLUTE_WRITE; + if (desc->mode == CMPXCHG) { + ksmo.op = KVM_S390_MEMOP_ABSOLUTE_CMPXCHG; + ksmo.old_addr = (uint64_t)desc->old; + memcpy(desc->old_value, desc->old, desc->size); + } break; case INVALID: ksmo.op = -1; @@ -135,9 +145,13 @@ static void print_memop(struct kvm_vcpu *vcpu, const struct kvm_s390_mem_op *ksm case KVM_S390_MEMOP_ABSOLUTE_WRITE: printf("ABSOLUTE, WRITE, "); break; + case KVM_S390_MEMOP_ABSOLUTE_CMPXCHG: + printf("ABSOLUTE, CMPXCHG, "); + break; } - printf("gaddr=%llu, size=%u, buf=%llu, ar=%u, key=%u", - ksmo->gaddr, ksmo->size, ksmo->buf, ksmo->ar, ksmo->key); + printf("gaddr=%llu, size=%u, buf=%llu, ar=%u, key=%u, old_addr=%llx", + ksmo->gaddr, ksmo->size, ksmo->buf, ksmo->ar, ksmo->key, + ksmo->old_addr); if (ksmo->flags & KVM_S390_MEMOP_F_CHECK_ONLY) printf(", CHECK_ONLY"); if (ksmo->flags & KVM_S390_MEMOP_F_INJECT_EXCEPTION) @@ -147,24 +161,31 @@ static void print_memop(struct kvm_vcpu *vcpu, const struct kvm_s390_mem_op *ksm puts(")"); } -static void memop_ioctl(struct test_info info, struct kvm_s390_mem_op *ksmo) +static int err_memop_ioctl(struct test_info info, struct kvm_s390_mem_op *ksmo, + struct mop_desc *desc) { struct kvm_vcpu *vcpu = info.vcpu; if (!vcpu) - vm_ioctl(info.vm, KVM_S390_MEM_OP, ksmo); + return __vm_ioctl(info.vm, KVM_S390_MEM_OP, ksmo); else - vcpu_ioctl(vcpu, KVM_S390_MEM_OP, ksmo); + return __vcpu_ioctl(vcpu, KVM_S390_MEM_OP, ksmo); } -static int err_memop_ioctl(struct test_info info, struct kvm_s390_mem_op *ksmo) +static void memop_ioctl(struct test_info info, struct kvm_s390_mem_op *ksmo, + struct mop_desc *desc) { - struct kvm_vcpu *vcpu = info.vcpu; + int r; + + r = err_memop_ioctl(info, ksmo, desc); + if (ksmo->op == KVM_S390_MEMOP_ABSOLUTE_CMPXCHG) { + if (desc->cmpxchg_success) { + int diff = memcmp(desc->old_value, desc->old, desc->size); + *desc->cmpxchg_success = !diff; + } + } + TEST_ASSERT(!r, __KVM_IOCTL_ERROR("KVM_S390_MEM_OP", r)); - if (!vcpu) - return __vm_ioctl(info.vm, KVM_S390_MEM_OP, ksmo); - else - return __vcpu_ioctl(vcpu, KVM_S390_MEM_OP, ksmo); } #define MEMOP(err, info_p, mop_target_p, access_mode_p, buf_p, size_p, ...) \ @@ -187,7 +208,7 @@ static int err_memop_ioctl(struct test_info info, struct kvm_s390_mem_op *ksmo) } \ __ksmo = ksmo_from_desc(&__desc); \ print_memop(__info.vcpu, &__ksmo); \ - err##memop_ioctl(__info, &__ksmo); \ + err##memop_ioctl(__info, &__ksmo, &__desc); \ }) #define MOP(...) MEMOP(, __VA_ARGS__) @@ -201,6 +222,8 @@ static int err_memop_ioctl(struct test_info info, struct kvm_s390_mem_op *ksmo) #define AR(a) ._ar = 1, .ar = (a) #define KEY(a) .f_key = 1, .key = (a) #define INJECT .f_inject = 1 +#define CMPXCHG_OLD(o) .old = (o) +#define CMPXCHG_SUCCESS(s) .cmpxchg_success = (s) #define CHECK_N_DO(f, ...) ({ f(__VA_ARGS__, CHECK_ONLY); f(__VA_ARGS__); }) @@ -210,8 +233,8 @@ static int err_memop_ioctl(struct test_info info, struct kvm_s390_mem_op *ksmo) #define CR0_FETCH_PROTECTION_OVERRIDE (1UL << (63 - 38)) #define CR0_STORAGE_PROTECTION_OVERRIDE (1UL << (63 - 39)) -static uint8_t mem1[65536]; -static uint8_t mem2[65536]; +static uint8_t __aligned(PAGE_SIZE) mem1[65536]; +static uint8_t __aligned(PAGE_SIZE) mem2[65536]; struct test_default { struct kvm_vm *kvm_vm; @@ -243,6 +266,8 @@ enum stage { STAGE_SKEYS_SET, /* Guest copied memory (locations up to test case) */ STAGE_COPIED, + /* End of guest code reached */ + STAGE_DONE, }; #define HOST_SYNC(info_p, stage) \ @@ -254,6 +279,9 @@ enum stage { \ vcpu_run(__vcpu); \ get_ucall(__vcpu, &uc); \ + if (uc.cmd == UCALL_ABORT) { \ + REPORT_GUEST_ASSERT_2(uc, "hints: %lu, %lu"); \ + } \ ASSERT_EQ(uc.cmd, UCALL_SYNC); \ ASSERT_EQ(uc.args[1], __stage); \ }) \ @@ -293,6 +321,44 @@ static void default_read(struct test_info copy_cpu, struct test_info mop_cpu, ASSERT_MEM_EQ(mem1, mem2, size); } +static void default_cmpxchg(struct test_default *test, uint8_t key) +{ + for (int size = 1; size <= 16; size *= 2) { + for (int offset = 0; offset < 16; offset += size) { + uint8_t __aligned(16) new[16] = {}; + uint8_t __aligned(16) old[16]; + bool succ; + + prepare_mem12(); + default_write_read(test->vcpu, test->vcpu, LOGICAL, 16, NO_KEY); + + memcpy(&old, mem1, 16); + MOP(test->vm, ABSOLUTE, CMPXCHG, new + offset, + size, GADDR_V(mem1 + offset), + CMPXCHG_OLD(old + offset), + CMPXCHG_SUCCESS(&succ), KEY(key)); + HOST_SYNC(test->vcpu, STAGE_COPIED); + MOP(test->vm, ABSOLUTE, READ, mem2, 16, GADDR_V(mem2)); + TEST_ASSERT(succ, "exchange of values should succeed"); + memcpy(mem1 + offset, new + offset, size); + ASSERT_MEM_EQ(mem1, mem2, 16); + + memcpy(&old, mem1, 16); + new[offset]++; + old[offset]++; + MOP(test->vm, ABSOLUTE, CMPXCHG, new + offset, + size, GADDR_V(mem1 + offset), + CMPXCHG_OLD(old + offset), + CMPXCHG_SUCCESS(&succ), KEY(key)); + HOST_SYNC(test->vcpu, STAGE_COPIED); + MOP(test->vm, ABSOLUTE, READ, mem2, 16, GADDR_V(mem2)); + TEST_ASSERT(!succ, "exchange of values should not succeed"); + ASSERT_MEM_EQ(mem1, mem2, 16); + ASSERT_MEM_EQ(&old, mem1, 16); + } + } +} + static void guest_copy(void) { GUEST_SYNC(STAGE_INITED); @@ -377,6 +443,250 @@ static void test_copy_key(void) kvm_vm_free(t.kvm_vm); } +static void test_cmpxchg_key(void) +{ + struct test_default t = test_default_init(guest_copy_key); + + HOST_SYNC(t.vcpu, STAGE_SKEYS_SET); + + default_cmpxchg(&t, NO_KEY); + default_cmpxchg(&t, 0); + default_cmpxchg(&t, 9); + + kvm_vm_free(t.kvm_vm); +} + +static __uint128_t cut_to_size(int size, __uint128_t val) +{ + switch (size) { + case 1: + return (uint8_t)val; + case 2: + return (uint16_t)val; + case 4: + return (uint32_t)val; + case 8: + return (uint64_t)val; + case 16: + return val; + } + GUEST_ASSERT_1(false, "Invalid size"); + return 0; +} + +static bool popcount_eq(__uint128_t a, __uint128_t b) +{ + unsigned int count_a, count_b; + + count_a = __builtin_popcountl((uint64_t)(a >> 64)) + + __builtin_popcountl((uint64_t)a); + count_b = __builtin_popcountl((uint64_t)(b >> 64)) + + __builtin_popcountl((uint64_t)b); + return count_a == count_b; +} + +static __uint128_t rotate(int size, __uint128_t val, int amount) +{ + unsigned int bits = size * 8; + + amount = (amount + bits) % bits; + val = cut_to_size(size, val); + return (val << (bits - amount)) | (val >> amount); +} + +const unsigned int max_block = 16; + +static void choose_block(bool guest, int i, int *size, int *offset) +{ + unsigned int rand; + + rand = i; + if (guest) { + rand = rand * 19 + 11; + *size = 1 << ((rand % 3) + 2); + rand = rand * 19 + 11; + *offset = (rand % max_block) & ~(*size - 1); + } else { + rand = rand * 17 + 5; + *size = 1 << (rand % 5); + rand = rand * 17 + 5; + *offset = (rand % max_block) & ~(*size - 1); + } +} + +static __uint128_t permutate_bits(bool guest, int i, int size, __uint128_t old) +{ + unsigned int rand; + bool swap; + + rand = i; + rand = rand * 3 + 1; + if (guest) + rand = rand * 3 + 1; + swap = rand % 2 == 0; + if (swap) { + int i, j; + __uint128_t new; + uint8_t byte0, byte1; + + rand = rand * 3 + 1; + i = rand % size; + rand = rand * 3 + 1; + j = rand % size; + if (i == j) + return old; + new = rotate(16, old, i * 8); + byte0 = new & 0xff; + new &= ~0xff; + new = rotate(16, new, -i * 8); + new = rotate(16, new, j * 8); + byte1 = new & 0xff; + new = (new & ~0xff) | byte0; + new = rotate(16, new, -j * 8); + new = rotate(16, new, i * 8); + new = new | byte1; + new = rotate(16, new, -i * 8); + return new; + } else { + int amount; + + rand = rand * 3 + 1; + amount = rand % (size * 8); + return rotate(size, old, amount); + } +} + +static bool _cmpxchg(int size, void *target, __uint128_t *old_addr, __uint128_t new) +{ + bool ret; + + switch (size) { + case 4: { + uint32_t old = *old_addr; + + asm volatile ("cs %[old],%[new],%[address]" + : [old] "+d" (old), + [address] "+Q" (*(uint32_t *)(target)) + : [new] "d" ((uint32_t)new) + : "cc" + ); + ret = old == (uint32_t)*old_addr; + *old_addr = old; + return ret; + } + case 8: { + uint64_t old = *old_addr; + + asm volatile ("csg %[old],%[new],%[address]" + : [old] "+d" (old), + [address] "+Q" (*(uint64_t *)(target)) + : [new] "d" ((uint64_t)new) + : "cc" + ); + ret = old == (uint64_t)*old_addr; + *old_addr = old; + return ret; + } + case 16: { + __uint128_t old = *old_addr; + + asm volatile ("cdsg %[old],%[new],%[address]" + : [old] "+d" (old), + [address] "+Q" (*(__uint128_t *)(target)) + : [new] "d" (new) + : "cc" + ); + ret = old == *old_addr; + *old_addr = old; + return ret; + } + } + GUEST_ASSERT_1(false, "Invalid size"); + return 0; +} + +const unsigned int cmpxchg_iter_outer = 100, cmpxchg_iter_inner = 10000; + +static void guest_cmpxchg_key(void) +{ + int size, offset; + __uint128_t old, new; + + set_storage_key_range(mem1, max_block, 0x10); + set_storage_key_range(mem2, max_block, 0x10); + GUEST_SYNC(STAGE_SKEYS_SET); + + for (int i = 0; i < cmpxchg_iter_outer; i++) { + do { + old = 1; + } while (!_cmpxchg(16, mem1, &old, 0)); + for (int j = 0; j < cmpxchg_iter_inner; j++) { + choose_block(true, i + j, &size, &offset); + do { + new = permutate_bits(true, i + j, size, old); + } while (!_cmpxchg(size, mem2 + offset, &old, new)); + } + } + + GUEST_SYNC(STAGE_DONE); +} + +static void *run_guest(void *data) +{ + struct test_info *info = data; + + HOST_SYNC(*info, STAGE_DONE); + return NULL; +} + +static char *quad_to_char(__uint128_t *quad, int size) +{ + return ((char *)quad) + (sizeof(*quad) - size); +} + +static void test_cmpxchg_key_concurrent(void) +{ + struct test_default t = test_default_init(guest_cmpxchg_key); + int size, offset; + __uint128_t old, new; + bool success; + pthread_t thread; + + HOST_SYNC(t.vcpu, STAGE_SKEYS_SET); + prepare_mem12(); + MOP(t.vcpu, LOGICAL, WRITE, mem1, max_block, GADDR_V(mem2)); + pthread_create(&thread, NULL, run_guest, &t.vcpu); + + for (int i = 0; i < cmpxchg_iter_outer; i++) { + do { + old = 0; + new = 1; + MOP(t.vm, ABSOLUTE, CMPXCHG, &new, + sizeof(new), GADDR_V(mem1), + CMPXCHG_OLD(&old), + CMPXCHG_SUCCESS(&success), KEY(1)); + } while (!success); + for (int j = 0; j < cmpxchg_iter_inner; j++) { + choose_block(false, i + j, &size, &offset); + do { + new = permutate_bits(false, i + j, size, old); + MOP(t.vm, ABSOLUTE, CMPXCHG, quad_to_char(&new, size), + size, GADDR_V(mem2 + offset), + CMPXCHG_OLD(quad_to_char(&old, size)), + CMPXCHG_SUCCESS(&success), KEY(1)); + } while (!success); + } + } + + pthread_join(thread, NULL); + + MOP(t.vcpu, LOGICAL, READ, mem2, max_block, GADDR_V(mem2)); + TEST_ASSERT(popcount_eq(*(__uint128_t *)mem1, *(__uint128_t *)mem2), + "Must retain number of set bits"); + + kvm_vm_free(t.kvm_vm); +} + static void guest_copy_key_fetch_prot(void) { /* @@ -457,6 +767,24 @@ static void test_errors_key(void) kvm_vm_free(t.kvm_vm); } +static void test_errors_cmpxchg_key(void) +{ + struct test_default t = test_default_init(guest_copy_key_fetch_prot); + int i; + + HOST_SYNC(t.vcpu, STAGE_INITED); + HOST_SYNC(t.vcpu, STAGE_SKEYS_SET); + + for (i = 1; i <= 16; i *= 2) { + __uint128_t old = 0; + + ERR_PROT_MOP(t.vm, ABSOLUTE, CMPXCHG, mem2, i, GADDR_V(mem2), + CMPXCHG_OLD(&old), KEY(2)); + } + + kvm_vm_free(t.kvm_vm); +} + static void test_termination(void) { struct test_default t = test_default_init(guest_error_key); @@ -692,6 +1020,38 @@ static void test_errors(void) kvm_vm_free(t.kvm_vm); } +static void test_errors_cmpxchg(void) +{ + struct test_default t = test_default_init(guest_idle); + __uint128_t old; + int rv, i, power = 1; + + HOST_SYNC(t.vcpu, STAGE_INITED); + + for (i = 0; i < 32; i++) { + if (i == power) { + power *= 2; + continue; + } + rv = ERR_MOP(t.vm, ABSOLUTE, CMPXCHG, mem1, i, GADDR_V(mem1), + CMPXCHG_OLD(&old)); + TEST_ASSERT(rv == -1 && errno == EINVAL, + "ioctl allows bad size for cmpxchg"); + } + for (i = 1; i <= 16; i *= 2) { + rv = ERR_MOP(t.vm, ABSOLUTE, CMPXCHG, mem1, i, GADDR((void *)~0xfffUL), + CMPXCHG_OLD(&old)); + TEST_ASSERT(rv > 0, "ioctl allows bad guest address for cmpxchg"); + } + for (i = 2; i <= 16; i *= 2) { + rv = ERR_MOP(t.vm, ABSOLUTE, CMPXCHG, mem1, i, GADDR_V(mem1 + 1), + CMPXCHG_OLD(&old)); + TEST_ASSERT(rv == -1 && errno == EINVAL, + "ioctl allows bad alignment for cmpxchg"); + } + + kvm_vm_free(t.kvm_vm); +} int main(int argc, char *argv[]) { @@ -720,6 +1080,16 @@ int main(int argc, char *argv[]) .test = test_copy_key, .requirements_met = extension_cap > 0, }, + { + .name = "cmpxchg with storage keys", + .test = test_cmpxchg_key, + .requirements_met = extension_cap & 0x2, + }, + { + .name = "concurrently cmpxchg with storage keys", + .test = test_cmpxchg_key_concurrent, + .requirements_met = extension_cap & 0x2, + }, { .name = "copy with key storage protection override", .test = test_copy_key_storage_prot_override, @@ -740,6 +1110,16 @@ int main(int argc, char *argv[]) .test = test_errors_key, .requirements_met = extension_cap > 0, }, + { + .name = "error checks for cmpxchg with key", + .test = test_errors_cmpxchg_key, + .requirements_met = extension_cap & 0x2, + }, + { + .name = "error checks for cmpxchg", + .test = test_errors_cmpxchg, + .requirements_met = extension_cap & 0x2, + }, { .name = "termination", .test = test_termination,