From patchwork Mon Jun 15 09:31:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre Morel X-Patchwork-Id: 11604439 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 9217D618 for ; Mon, 15 Jun 2020 09:32:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 77DFB206B7 for ; Mon, 15 Jun 2020 09:32:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728865AbgFOJcJ (ORCPT ); Mon, 15 Jun 2020 05:32:09 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:60442 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728411AbgFOJcJ (ORCPT ); Mon, 15 Jun 2020 05:32:09 -0400 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 05F84I4i005997; Mon, 15 Jun 2020 05:32:07 -0400 Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 31p54p2gu0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 15 Jun 2020 05:32:07 -0400 Received: from m0098420.ppops.net (m0098420.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 05F84sQF008047; Mon, 15 Jun 2020 05:32:07 -0400 Received: from ppma03ams.nl.ibm.com (62.31.33a9.ip4.static.sl-reverse.com [169.51.49.98]) by mx0b-001b2d01.pphosted.com with ESMTP id 31p54p2gsu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 15 Jun 2020 05:32:07 -0400 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 05F9JxEF023011; Mon, 15 Jun 2020 09:32:05 GMT Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by ppma03ams.nl.ibm.com with ESMTP id 31mpe839ed-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 15 Jun 2020 09:32:05 +0000 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 05F9W37m2949598 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 15 Jun 2020 09:32:03 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 161A252052; Mon, 15 Jun 2020 09:32:03 +0000 (GMT) Received: from oc3016276355.ibm.com (unknown [9.145.1.141]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTP id ABB1252057; Mon, 15 Jun 2020 09:32:02 +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 Subject: [kvm-unit-tests PATCH v9 00/12] s390x: Testing the Channel Subsystem I/O Date: Mon, 15 Jun 2020 11:31:49 +0200 Message-Id: <1592213521-19390-1-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=2.50.10434:6.0.216,18.0.687 definitions=2020-06-15_01:2020-06-15,2020-06-15 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 priorityscore=1501 clxscore=1015 cotscore=-2147483648 mlxscore=0 mlxlogscore=999 impostorscore=0 lowpriorityscore=0 adultscore=0 malwarescore=0 suspectscore=1 bulkscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006150066 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. Being working on PSW bits to allow I/O interrupt, we define new PSW bits in arch_def.h and use __ASSEMBLER__ define to be able to include this header in an assembler source file. This series presents four major 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-net-ccw. Checks SSCH(READ) and IO-IRQ Note: - The following patches are general usage and may be pulled first: s390x: Use PSW bits definitions in cstart s390x: Move control register bit definitions and add AFP to them s390x: saving regs for interrupts s390x: interrupt registration s390x: export the clock get_clock_ms() utility s390x: clock and delays caluculations s390x: define function to wait for interrupt s390x: retrieve decimal and hexadecimal kernel parameters - 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 (12): s390x: Use PSW bits definitions in cstart s390x: Move control register bit definitions and add AFP to them s390x: saving regs for interrupts s390x: interrupt registration s390x: export the clock get_clock_ms() utility s390x: clock and delays caluculations s390x: define function to wait for interrupt s390x: retrieve decimal and hexadecimal kernel parameters 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 | 32 ++++- lib/s390x/asm/time.h | 51 ++++++++ lib/s390x/css.h | 276 +++++++++++++++++++++++++++++++++++++++ lib/s390x/css_dump.c | 153 ++++++++++++++++++++++ lib/s390x/css_lib.c | 176 +++++++++++++++++++++++++ lib/s390x/interrupt.c | 23 +++- lib/s390x/interrupt.h | 8 ++ lib/s390x/kernel-args.c | 60 +++++++++ lib/s390x/kernel-args.h | 18 +++ s390x/Makefile | 4 + s390x/css.c | 208 +++++++++++++++++++++++++++++ s390x/cstart64.S | 58 ++++++-- s390x/intercept.c | 11 +- s390x/unittests.cfg | 4 + 14 files changed, 1056 insertions(+), 26 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 lib/s390x/kernel-args.c create mode 100644 lib/s390x/kernel-args.h create mode 100644 s390x/css.c