From patchwork Wed Jul 13 11:36:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nico Boehr X-Patchwork-Id: 12916613 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 D2FA1C433EF for ; Wed, 13 Jul 2022 11:36:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236199AbiGMLgf (ORCPT ); Wed, 13 Jul 2022 07:36:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236122AbiGMLgb (ORCPT ); Wed, 13 Jul 2022 07:36:31 -0400 Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 923B9102722; Wed, 13 Jul 2022 04:36:29 -0700 (PDT) Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 26DBLQqT023526; Wed, 13 Jul 2022 11:36:28 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=rFXL5Z38uPZ4gU1+y6hkT7AR9bjyyQrBbbckGUP5koA=; b=bc27VY+cGhewoAUXM4D/oar5TCUxDH63FIeIjBTMylP/uJ/0G/JWtQaARrRyXnWveFLV jpHJXpgRAao3sFsrdGBN7P4x+7znsivsapdCpttGd3dashiWdDmW+rpt0+4gPPP0+Ne2 PDkPKfS096ss9JmVIDxHfVqrjTjh93aqOkKkZKHj2tXRIOBwiG49l+tXTcesTL4V7PKV 169I9RBQC/7xvnkku1vqsmYiNdXyqemU4vwV5GaiFINGQPHWLrhHom6Ewx0Sbbc7qqsr jPqv1d6cwP6CSm3yQUEr3vdHzaFwSBZCWBFH6VcM4cuSNbaLhgDuqU1HClJm3knk7psW vw== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com (PPS) with ESMTPS id 3h9w3q8abq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 13 Jul 2022 11:36:28 +0000 Received: from m0098420.ppops.net (m0098420.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 26DBPbm8006898; Wed, 13 Jul 2022 11:36:28 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 3h9w3q8aae-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 13 Jul 2022 11:36:27 +0000 Received: from pps.filterd (ppma02fra.de.ibm.com [127.0.0.1]) by ppma02fra.de.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 26DBZPMN001133; Wed, 13 Jul 2022 11:36:26 GMT Received: from b06avi18878370.portsmouth.uk.ibm.com (b06avi18878370.portsmouth.uk.ibm.com [9.149.26.194]) by ppma02fra.de.ibm.com with ESMTP id 3h71a8mup1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 13 Jul 2022 11:36:26 +0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06avi18878370.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 26DBaXag33030524 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 13 Jul 2022 11:36:33 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2514011C054; Wed, 13 Jul 2022 11:36:23 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E31A911C050; Wed, 13 Jul 2022 11:36:22 +0000 (GMT) Received: from t35lp63.lnxne.boe (unknown [9.152.108.100]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 13 Jul 2022 11:36:22 +0000 (GMT) From: Nico Boehr To: kvm@vger.kernel.org, linux-s390@vger.kernel.org Cc: frankja@linux.ibm.com, imbrenda@linux.ibm.com, thuth@redhat.com Subject: [kvm-unit-tests PATCH v1 3/4] s390x: smp: use an array for sigp calls Date: Wed, 13 Jul 2022 13:36:20 +0200 Message-Id: <20220713113621.14778-4-nrb@linux.ibm.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220713113621.14778-1-nrb@linux.ibm.com> References: <20220713113621.14778-1-nrb@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 43P6-9FKvQfzGDP3frBT9Tylx-vn1jN6 X-Proofpoint-GUID: dU3Qp-17jvOomMOo89MxG9j-B3gl9etF X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-07-12_14,2022-07-13_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 adultscore=0 impostorscore=0 mlxscore=0 priorityscore=1501 lowpriorityscore=0 malwarescore=0 suspectscore=0 clxscore=1015 phishscore=0 spamscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2206140000 definitions=main-2207130047 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Tests for the SIGP calls are quite similar, so we have a lot of code duplication right now. Since upcoming changes will add more cases, refactor the code to iterate over an array, similarily as we already do for test_invalid(). The receiving CPU is disabled for IO interrupts. This makes sure the conditional emergency signal is accepted and doesn't hurt the other orders. Signed-off-by: Nico Boehr --- s390x/smp.c | 130 ++++++++++++++++++---------------------------------- 1 file changed, 44 insertions(+), 86 deletions(-) diff --git a/s390x/smp.c b/s390x/smp.c index ea811087587e..857eae206daa 100644 --- a/s390x/smp.c +++ b/s390x/smp.c @@ -43,6 +43,20 @@ static const struct sigp_invalid_cases cases_valid_cpu_addr[] = { static uint32_t cpu1_prefix; +struct sigp_call_cases { + char name[20]; + int call; + uint16_t ext_int_expected_type; + uint32_t cr0_bit; + bool supports_pv; +}; +static const struct sigp_call_cases cases_sigp_call[] = { + { "emcall", SIGP_EMERGENCY_SIGNAL, 0x1201, CTL0_EMERGENCY_SIGNAL, true }, + { "cond emcall", SIGP_COND_EMERGENCY_SIGNAL, 0x1201, CTL0_EMERGENCY_SIGNAL, false }, + { "ecall", SIGP_EXTERNAL_CALL, 0x1202, CTL0_EXTERNAL_CALL, true }, +}; +static const struct sigp_call_cases *current_sigp_call_case; + static void test_invalid(void) { const struct sigp_invalid_cases *c; @@ -289,105 +303,51 @@ static void test_set_prefix(void) } -static void ecall(void) -{ - unsigned long mask; - - expect_ext_int(); - ctl_set_bit(0, CTL0_EXTERNAL_CALL); - mask = extract_psw_mask(); - mask |= PSW_MASK_EXT; - load_psw_mask(mask); - set_flag(1); - while (lowcore.ext_int_code != 0x1202) { mb(); } - report_pass("received"); - set_flag(1); -} - -static void test_ecall(void) -{ - struct psw psw; - psw.mask = extract_psw_mask(); - psw.addr = (unsigned long)ecall; - - report_prefix_push("ecall"); - set_flag(0); - - smp_cpu_start(1, psw); - wait_for_flag(); - set_flag(0); - smp_sigp(1, SIGP_EXTERNAL_CALL, 0, NULL); - wait_for_flag(); - smp_cpu_stop(1); - report_prefix_pop(); -} - -static void emcall(void) +static void call_received(void) { unsigned long mask; expect_ext_int(); - ctl_set_bit(0, CTL0_EMERGENCY_SIGNAL); + ctl_set_bit(0, current_sigp_call_case->cr0_bit); mask = extract_psw_mask(); mask |= PSW_MASK_EXT; + /* make sure conditional emergency is accepted by disabling IO interrupts */ + mask &= ~PSW_MASK_IO; load_psw_mask(mask); set_flag(1); - while (lowcore.ext_int_code != 0x1201) { mb(); } + while (lowcore.ext_int_code != current_sigp_call_case->ext_int_expected_type) + mb(); report_pass("received"); set_flag(1); } -static void test_emcall(void) +static void test_calls(void) { + int i; struct psw psw; - psw.mask = extract_psw_mask(); - psw.addr = (unsigned long)emcall; - - report_prefix_push("emcall"); - set_flag(0); - - smp_cpu_start(1, psw); - wait_for_flag(); - set_flag(0); - smp_sigp(1, SIGP_EMERGENCY_SIGNAL, 0, NULL); - wait_for_flag(); - smp_cpu_stop(1); - - report_prefix_pop(); -} - -static void test_cond_emcall(void) -{ - uint32_t status = 0; - struct psw psw; - int cc; - psw.mask = extract_psw_mask() & ~PSW_MASK_IO; - psw.addr = (unsigned long)emcall; - - report_prefix_push("conditional emergency call"); - if (uv_os_is_guest()) { - report_skip("unsupported under PV"); - goto out; + for (i = 0; i < ARRAY_SIZE(cases_sigp_call); i++) { + current_sigp_call_case = &cases_sigp_call[i]; + + report_prefix_push(current_sigp_call_case->name); + if (!current_sigp_call_case->supports_pv && uv_os_is_guest()) { + report_skip("Not supported under PV"); + report_prefix_pop(); + continue; + } + + set_flag(0); + psw.mask = extract_psw_mask(); + psw.addr = (unsigned long)call_received; + + smp_cpu_start(1, psw); + wait_for_flag(); + set_flag(0); + smp_sigp(1, current_sigp_call_case->call, 0, NULL); + wait_for_flag(); + smp_cpu_stop(1); + report_prefix_pop(); } - - report_prefix_push("success"); - set_flag(0); - - smp_cpu_start(1, psw); - wait_for_flag(); - set_flag(0); - cc = smp_sigp(1, SIGP_COND_EMERGENCY_SIGNAL, 0, &status); - report(!cc, "CC = 0"); - - wait_for_flag(); - smp_cpu_stop(1); - - report_prefix_pop(); - -out: - report_prefix_pop(); - } static void test_sense_running(void) @@ -511,9 +471,7 @@ int main(void) test_stop_store_status(); test_store_status(); test_set_prefix(); - test_ecall(); - test_emcall(); - test_cond_emcall(); + test_calls(); test_sense_running(); test_reset(); test_reset_initial();