From patchwork Wed Sep 26 22:54:38 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Krowiak X-Patchwork-Id: 975491 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.vnet.ibm.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 42LDCK5vJXz9s4Z for ; Thu, 27 Sep 2018 09:09:01 +1000 (AEST) Received: from localhost ([::1]:32846 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1g5IvT-0007Ap-63 for incoming@patchwork.ozlabs.org; Wed, 26 Sep 2018 19:08:59 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40398) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1g5Irq-0004Xc-Ay for qemu-devel@nongnu.org; Wed, 26 Sep 2018 19:05:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1g5IiI-0007z5-OE for qemu-devel@nongnu.org; Wed, 26 Sep 2018 18:55:25 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:44500) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1g5IiF-0007qG-Oa for qemu-devel@nongnu.org; Wed, 26 Sep 2018 18:55:21 -0400 Received: from pps.filterd (m0098409.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w8QMhi4J096666 for ; Wed, 26 Sep 2018 18:55:13 -0400 Received: from e31.co.us.ibm.com (e31.co.us.ibm.com [32.97.110.149]) by mx0a-001b2d01.pphosted.com with ESMTP id 2mrhaxvgpw-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 26 Sep 2018 18:55:13 -0400 Received: from localhost by e31.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 26 Sep 2018 16:55:06 -0600 Received: from b03ledav003.gho.boulder.ibm.com (b03ledav003.gho.boulder.ibm.com [9.17.130.234]) by b03cxnp08027.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w8QMt37933030324 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 26 Sep 2018 15:55:03 -0700 Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 604BB6A058; Wed, 26 Sep 2018 16:55:03 -0600 (MDT) Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7DBF46A04D; Wed, 26 Sep 2018 16:55:00 -0600 (MDT) Received: from oc8043147753.ibm.com (unknown [9.80.211.69]) by b03ledav003.gho.boulder.ibm.com (Postfix) with ESMTPS; Wed, 26 Sep 2018 16:55:00 -0600 (MDT) From: Tony Krowiak To: qemu-devel@nongnu.org Date: Wed, 26 Sep 2018 18:54:38 -0400 X-Mailer: git-send-email 2.19.0.221.g150f307 In-Reply-To: <20180926225440.6204-1-akrowiak@linux.vnet.ibm.com> References: <20180926225440.6204-1-akrowiak@linux.vnet.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 18092622-8235-0000-0000-00000E076AA2 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009777; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000267; SDB=6.01094115; UDB=6.00565549; IPR=6.00874152; MB=3.00023521; MTD=3.00000008; XFM=3.00000015; UTC=2018-09-26 22:55:10 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18092622-8236-0000-0000-000042C88CA4 Message-Id: <20180926225440.6204-5-akrowiak@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-09-26_10:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1809260214 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH v9 4/6] s390x/ap: base Adjunct Processor (AP) object model X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, akrowiak@linux.vnet.ibm.com, cohuck@redhat.com, david@redhat.com, pmorel@linux.vnet.ibm.com, fiuczy@linux.ibm.com, eskultet@redhat.com, agraf@suse.de, borntraeger@de.ibm.com, jjherne@linux.vnet.ibm.com, mimu@linux.ibm.com, Tony Krowiak , heiko.carstens@de.ibm.com, eric.auger@redhat.com, alex.williamson@redhat.com, bjsdjshi@linux.vnet.ibm.com, rth@twiddle.net, mjrosato@linux.vnet.ibm.com, pasic@linux.vnet.ibm.com, alifm@linux.vnet.ibm.com, qemu-s390x@nongnu.org, schwidefsky@de.ibm.com, pbonzini@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Tony Krowiak Introduces the base object model for virtualizing AP devices. Signed-off-by: Tony Krowiak Acked-by: David Hildenbrand Tested-by: Pierre Morel --- MAINTAINERS | 12 ++++++ hw/s390x/Makefile.objs | 2 + hw/s390x/ap-bridge.c | 81 ++++++++++++++++++++++++++++++++++++ hw/s390x/ap-device.c | 39 +++++++++++++++++ hw/s390x/s390-virtio-ccw.c | 4 ++ include/hw/s390x/ap-bridge.h | 37 ++++++++++++++++ include/hw/s390x/ap-device.h | 38 +++++++++++++++++ 7 files changed, 213 insertions(+) create mode 100644 hw/s390x/ap-bridge.c create mode 100644 hw/s390x/ap-device.c create mode 100644 include/hw/s390x/ap-bridge.h create mode 100644 include/hw/s390x/ap-device.h diff --git a/MAINTAINERS b/MAINTAINERS index d12518c08f10..97e8ed808bc0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1199,6 +1199,18 @@ F: include/hw/s390x/s390-ccw.h T: git git://github.com/cohuck/qemu.git s390-next L: qemu-s390x@nongnu.org +vfio-ap +M: Christian Borntraeger +M: Tony Krowiak +M: Halil Pasic +M: Pierre Morel +S: Supported +F: hw/s390x/ap-device.c +F: hw/s390x/ap-bridge.c +F: include/hw/s390x/ap-device.h +F: include/hw/s390x/ap-bridge.h +L: qemu-s390x@nongnu.org + vhost M: Michael S. Tsirkin S: Supported diff --git a/hw/s390x/Makefile.objs b/hw/s390x/Makefile.objs index 93282f7c593c..add89b150d90 100644 --- a/hw/s390x/Makefile.objs +++ b/hw/s390x/Makefile.objs @@ -20,3 +20,5 @@ obj-$(CONFIG_TCG) += tod-qemu.o obj-$(CONFIG_KVM) += s390-skeys-kvm.o obj-$(CONFIG_KVM) += s390-stattrib-kvm.o obj-y += s390-ccw.o +obj-y += ap-device.o +obj-y += ap-bridge.o diff --git a/hw/s390x/ap-bridge.c b/hw/s390x/ap-bridge.c new file mode 100644 index 000000000000..8564dfa96ee7 --- /dev/null +++ b/hw/s390x/ap-bridge.c @@ -0,0 +1,81 @@ +/* + * ap bridge + * + * Copyright 2018 IBM Corp. + * Author(s): Halil Pasic + * + * This work is licensed under the terms of the GNU GPL, version 2 or (at + * your option) any later version. See the COPYING file in the top-level + * directory. + */ +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "hw/sysbus.h" +#include "qemu/bitops.h" +#include "hw/s390x/ap-bridge.h" +#include "cpu.h" + +static char *vfio_ap_bus_get_dev_path(DeviceState *dev) +{ + /* at most one */ + return g_strdup_printf("/1"); +} + +static void vfio_ap_bus_class_init(ObjectClass *klass, void *data) +{ + BusClass *k = BUS_CLASS(klass); + + k->get_dev_path = vfio_ap_bus_get_dev_path; + /* More than one vfio-ap device does not make sense */ + k->max_dev = 1; +} + +static const TypeInfo vfio_ap_bus_info = { + .name = TYPE_AP_BUS, + .parent = TYPE_BUS, + .instance_size = sizeof(APBus), + .class_init = vfio_ap_bus_class_init, +}; + +void s390_init_ap(void) +{ + DeviceState *dev; + + /* If no AP instructions then no need for AP bridge */ + if (!s390_has_feat(S390_FEAT_AP)) { + return; + } + + /* Create bridge device */ + dev = qdev_create(NULL, TYPE_AP_BRIDGE); + object_property_add_child(qdev_get_machine(), TYPE_AP_BRIDGE, + OBJECT(dev), NULL); + qdev_init_nofail(dev); + + /* Create bus on bridge device */ + qbus_create(TYPE_AP_BUS, dev, TYPE_AP_BUS); + } + + + +static void ap_bridge_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); +} + +static const TypeInfo ap_bridge_info = { + .name = TYPE_AP_BRIDGE, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(APBridge), + .class_init = ap_bridge_class_init, +}; + +static void ap_register(void) +{ + type_register_static(&ap_bridge_info); + type_register_static(&vfio_ap_bus_info); +} + +type_init(ap_register) diff --git a/hw/s390x/ap-device.c b/hw/s390x/ap-device.c new file mode 100644 index 000000000000..3cd4bae52591 --- /dev/null +++ b/hw/s390x/ap-device.c @@ -0,0 +1,39 @@ +/* + * Adjunct Processor (AP) matrix device + * + * Copyright 2018 IBM Corp. + * Author(s): Tony Krowiak + * + * This work is licensed under the terms of the GNU GPL, version 2 or (at + * your option) any later version. See the COPYING file in the top-level + * directory. + */ +#include "qemu/osdep.h" +#include "qemu/module.h" +#include "qapi/error.h" +#include "hw/qdev.h" +#include "hw/s390x/ap-device.h" + +static void ap_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->desc = "AP device class"; + dc->hotpluggable = false; +} + +static const TypeInfo ap_device_info = { + .name = AP_DEVICE_TYPE, + .parent = TYPE_DEVICE, + .instance_size = sizeof(APDevice), + .class_size = sizeof(APDeviceClass), + .class_init = ap_class_init, + .abstract = true, +}; + +static void ap_device_register(void) +{ + type_register_static(&ap_device_info); +} + +type_init(ap_device_register) diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index f0f7fdcaddf2..3c100c24f3e8 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -32,6 +32,7 @@ #include "ipl.h" #include "hw/s390x/s390-virtio-ccw.h" #include "hw/s390x/css-bridge.h" +#include "hw/s390x/ap-bridge.h" #include "migration/register.h" #include "cpu_models.h" #include "hw/nmi.h" @@ -263,6 +264,9 @@ static void ccw_init(MachineState *machine) /* init the SIGP facility */ s390_init_sigp(); + /* create AP bridge and bus(es) */ + s390_init_ap(); + /* get a BUS */ css_bus = virtual_css_bus_init(); s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, diff --git a/include/hw/s390x/ap-bridge.h b/include/hw/s390x/ap-bridge.h new file mode 100644 index 000000000000..b6ca6ae4ab17 --- /dev/null +++ b/include/hw/s390x/ap-bridge.h @@ -0,0 +1,37 @@ +/* + * ap bridge + * + * Copyright 2018 IBM Corp. + * Author(s): Halil Pasic + * + * This work is licensed under the terms of the GNU GPL, version 2 or (at + * your option) any later version. See the COPYING file in the top-level + * directory. + */ + +#ifndef HW_S390X_AP_BRIDGE_H +#define HW_S390X_AP_BRIDGE_H +#include "qom/object.h" +#include "hw/qdev-core.h" +#include "hw/sysbus.h" + +typedef struct APBridge { + SysBusDevice sysbus_dev; + bool css_dev_path; +} APBridge; + +#define TYPE_AP_BRIDGE "ap-bridge" +#define AP_BRIDGE(obj) \ + OBJECT_CHECK(APBridge, (obj), TYPE_AP_BRIDGE) + +typedef struct APBus { + BusState parent_obj; +} APBus; + +#define TYPE_AP_BUS "ap-bus" +#define AP_BUS(obj) \ + OBJECT_CHECK(APBus, (obj), TYPE_AP_BUS) + +void s390_init_ap(void); + +#endif diff --git a/include/hw/s390x/ap-device.h b/include/hw/s390x/ap-device.h new file mode 100644 index 000000000000..693df90cc041 --- /dev/null +++ b/include/hw/s390x/ap-device.h @@ -0,0 +1,38 @@ +/* + * Adjunct Processor (AP) matrix device interfaces + * + * Copyright 2018 IBM Corp. + * Author(s): Tony Krowiak + * + * This work is licensed under the terms of the GNU GPL, version 2 or (at + * your option) any later version. See the COPYING file in the top-level + * directory. + */ +#ifndef HW_S390X_AP_DEVICE_H +#define HW_S390X_AP_DEVICE_H + +#define AP_DEVICE_TYPE "ap-device" + +typedef struct APDevice { + DeviceState parent_obj; +} APDevice; + +typedef struct APDeviceClass { + DeviceClass parent_class; +} APDeviceClass; + +static inline APDevice *to_ap_dev(DeviceState *dev) +{ + return container_of(dev, APDevice, parent_obj); +} + +#define AP_DEVICE(obj) \ + OBJECT_CHECK(APDevice, (obj), AP_DEVICE_TYPE) + +#define AP_DEVICE_GET_CLASS(obj) \ + OBJECT_GET_CLASS(APDeviceClass, (obj), AP_DEVICE_TYPE) + +#define AP_DEVICE_CLASS(klass) \ + OBJECT_CLASS_CHECK(APDeviceClass, (klass), AP_DEVICE_TYPE) + +#endif /* HW_S390X_AP_DEVICE_H */