From patchwork Thu Jul 2 16:31:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre Morel X-Patchwork-Id: 11639589 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4053013B4 for ; Thu, 2 Jul 2020 16:31:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2C8562084C for ; Thu, 2 Jul 2020 16:31:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726575AbgGBQbb (ORCPT ); Thu, 2 Jul 2020 12:31:31 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:24238 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726199AbgGBQb3 (ORCPT ); Thu, 2 Jul 2020 12:31:29 -0400 Received: from pps.filterd (m0098416.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 062GUZno170194; Thu, 2 Jul 2020 12:31:27 -0400 Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 320t3gn1pn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 02 Jul 2020 12:31:27 -0400 Received: from m0098416.ppops.net (m0098416.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 062GUbUk170491; Thu, 2 Jul 2020 12:31:26 -0400 Received: from ppma02fra.de.ibm.com (47.49.7a9f.ip4.static.sl-reverse.com [159.122.73.71]) by mx0b-001b2d01.pphosted.com with ESMTP id 320t3gn1ny-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 02 Jul 2020 12:31:26 -0400 Received: from pps.filterd (ppma02fra.de.ibm.com [127.0.0.1]) by ppma02fra.de.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 062GQQOv032129; Thu, 2 Jul 2020 16:31:24 GMT Received: from b06avi18626390.portsmouth.uk.ibm.com (b06avi18626390.portsmouth.uk.ibm.com [9.149.26.192]) by ppma02fra.de.ibm.com with ESMTP id 31wwr7tynx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 02 Jul 2020 16:31:24 +0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06avi18626390.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 062GU2r653412218 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 2 Jul 2020 16:30:02 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7657911C050; Thu, 2 Jul 2020 16:31:22 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EA0E111C058; Thu, 2 Jul 2020 16:31:21 +0000 (GMT) Received: from oc3016276355.ibm.com (unknown [9.145.146.43]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 2 Jul 2020 16:31:21 +0000 (GMT) From: Pierre Morel To: kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, frankja@linux.ibm.com, david@redhat.com, thuth@redhat.com, cohuck@redhat.com, drjones@redhat.com Subject: [kvm-unit-tests PATCH v10 0/9] s390x: Testing the Channel Subsystem I/O Date: Thu, 2 Jul 2020 18:31:11 +0200 Message-Id: <1593707480-23921-1-git-send-email-pmorel@linux.ibm.com> X-Mailer: git-send-email 1.8.3.1 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-07-02_09:2020-07-02,2020-07-02 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 malwarescore=0 impostorscore=0 mlxlogscore=999 bulkscore=0 cotscore=-2147483648 adultscore=0 phishscore=0 clxscore=1015 mlxscore=0 priorityscore=1501 spamscore=0 suspectscore=1 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2007020111 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Hi All, Goal of the series is to have a framework to test Channel-Subsystem I/O with QEMU/KVM. To be able to support interrupt for CSS I/O and for SCLP we need to modify the interrupt framework to allow re-entrant interruptions. We add a registration for IRQ callbacks to the test program to define its own interrupt handler. We need to do special work under interrupt like acknowledging the interrupt. This series presents three tests: - Enumeration: The CSS is enumerated using the STSCH instruction recursively on all potentially existing channels. Keeping the first channel found as a reference for future use. Checks STSCH - Enable: If the enumeration succeeded the tests enables the reference channel with MSCH and verifies with STSCH that the channel is effectively enabled, retrying a predefined count on failure to enable the channel Checks MSCH - Sense: If the channel is enabled this test sends a SENSE_ID command to the reference channel, analyzing the answer and expecting the Control unit type being 0x3832, a.k.a. virtio-ccw. Checks SSCH(READ) and IO-IRQ Note: - The following 5 patches are general usage and may be pulled first: s390x: saving regs for interrupts s390x: I/O interrupt registration s390x: export the clock get_clock_ms() utility s390x: clock and delays calculations s390x: define function to wait for interrupt - These 4 patches are really I/O oriented: s390x: Library resources for CSS tests s390x: css: stsch, enumeration test s390x: css: msch, enable test s390x: css: ssch/tsch with sense and interrupt Regards, Pierre Pierre Morel (9): s390x: saving regs for interrupts s390x: I/O interrupt registration s390x: export the clock get_clock_ms() utility s390x: clock and delays calculations s390x: define function to wait for interrupt s390x: Library resources for CSS tests s390x: css: stsch, enumeration test s390x: css: msch, enable test s390x: css: ssch/tsch with sense and interrupt lib/s390x/asm/arch_def.h | 14 ++ lib/s390x/asm/time.h | 50 +++++++ lib/s390x/css.h | 286 +++++++++++++++++++++++++++++++++++++++ lib/s390x/css_dump.c | 152 +++++++++++++++++++++ lib/s390x/css_lib.c | 277 +++++++++++++++++++++++++++++++++++++ lib/s390x/interrupt.c | 23 +++- lib/s390x/interrupt.h | 8 ++ s390x/Makefile | 3 + s390x/css.c | 162 ++++++++++++++++++++++ s390x/cstart64.S | 41 +++++- s390x/intercept.c | 11 +- s390x/unittests.cfg | 4 + 12 files changed, 1018 insertions(+), 13 deletions(-) create mode 100644 lib/s390x/asm/time.h create mode 100644 lib/s390x/css.h create mode 100644 lib/s390x/css_dump.c create mode 100644 lib/s390x/css_lib.c create mode 100644 lib/s390x/interrupt.h create mode 100644 s390x/css.c