From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C921C352A4 for ; Fri, 7 Feb 2020 09:43:03 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0D207218AC for ; Fri, 7 Feb 2020 09:43:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Vdt1EshB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0D207218AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:52952 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j00AA-0006xZ-9J for qemu-devel@archiver.kernel.org; Fri, 07 Feb 2020 04:43:02 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:36861) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j001h-00012S-9j for qemu-devel@nongnu.org; Fri, 07 Feb 2020 04:34:20 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j001e-00056n-13 for qemu-devel@nongnu.org; Fri, 07 Feb 2020 04:34:17 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:48015 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j001d-00056W-Sl for qemu-devel@nongnu.org; Fri, 07 Feb 2020 04:34:13 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1581068053; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Xh/T0nWBSrCG5Tr055W3TcSOS51pI8ZzrlTf5XKMWZI=; b=Vdt1EshBSF+HHFhSX33z/QpsmBM8o3OUYkpzbmv+zeqY1lBs5Tq0lV6mVdawhXF1K85S86 rMlUpWI63TJsTCsiKw+v4a8Dv6A7aRMaSSC0ot712F0aYFxQe/mUkFsUJtOU1QsdbwC2DY EPvvEswyM5PaisR1Q38Njh3t9uMHLx0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-191-6gRCv9XfPzu2xI4QTkLUHA-1; Fri, 07 Feb 2020 04:34:07 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 522AC1336561; Fri, 7 Feb 2020 09:34:05 +0000 (UTC) Received: from laptop.redhat.com (ovpn-116-37.ams2.redhat.com [10.36.116.37]) by smtp.corp.redhat.com (Postfix) with ESMTP id DB348790CF; Fri, 7 Feb 2020 09:33:52 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, peter.maydell@linaro.org, jean-philippe@linaro.org, dgilbert@redhat.com, quintela@redhat.com, mst@redhat.com, peterx@redhat.com Subject: [PATCH v14 11/11] tests: Add virtio-iommu test Date: Fri, 7 Feb 2020 10:32:03 +0100 Message-Id: <20200207093203.3788-12-eric.auger@redhat.com> In-Reply-To: <20200207093203.3788-1-eric.auger@redhat.com> References: <20200207093203.3788-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-MC-Unique: 6gRCv9XfPzu2xI4QTkLUHA-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kevin.tian@intel.com, bharatb.linux@gmail.com, tnowicki@marvell.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This adds the framework to test the virtio-iommu-pci device and tests exercising the attach/detach, map/unmap API. To run the tests: make tests/qtest/qos-test QTEST_QEMU_BINARY=3Dx86_64-softmmu/qemu-system-x86_64 tests/qtest/qos-test = V=3D1 Signed-off-by: Eric Auger --- v13 -> v14: - changed copyright v12 -> v13 - remove probe_size test - move to qtest directory --- tests/qtest/Makefile.include | 2 + tests/qtest/libqos/virtio-iommu.c | 177 +++++++++++++++++ tests/qtest/libqos/virtio-iommu.h | 45 +++++ tests/qtest/virtio-iommu-test.c | 306 ++++++++++++++++++++++++++++++ 4 files changed, 530 insertions(+) create mode 100644 tests/qtest/libqos/virtio-iommu.c create mode 100644 tests/qtest/libqos/virtio-iommu.h create mode 100644 tests/qtest/virtio-iommu-test.c diff --git a/tests/qtest/Makefile.include b/tests/qtest/Makefile.include index eb0f23b108..f3606c9e2a 100644 --- a/tests/qtest/Makefile.include +++ b/tests/qtest/Makefile.include @@ -189,6 +189,7 @@ qos-test-obj-y +=3D tests/qtest/libqos/virtio-pci-moder= n.o qos-test-obj-y +=3D tests/qtest/libqos/virtio-rng.o qos-test-obj-y +=3D tests/qtest/libqos/virtio-scsi.o qos-test-obj-y +=3D tests/qtest/libqos/virtio-serial.o +qos-test-obj-y +=3D tests/qtest/libqos/virtio-iommu.o =20 # qos machines: qos-test-obj-y +=3D tests/qtest/libqos/aarch64-xlnx-zcu102-machine.o @@ -228,6 +229,7 @@ qos-test-obj-y +=3D tests/qtest/virtio-net-test.o qos-test-obj-y +=3D tests/qtest/virtio-rng-test.o qos-test-obj-y +=3D tests/qtest/virtio-scsi-test.o qos-test-obj-y +=3D tests/qtest/virtio-serial-test.o +qos-test-obj-y +=3D tests/qtest/virtio-iommu-test.o qos-test-obj-y +=3D tests/qtest/vmxnet3-test.o =20 check-unit-y +=3D tests/test-qgraph$(EXESUF) diff --git a/tests/qtest/libqos/virtio-iommu.c b/tests/qtest/libqos/virtio-= iommu.c new file mode 100644 index 0000000000..21e45cf1d8 --- /dev/null +++ b/tests/qtest/libqos/virtio-iommu.c @@ -0,0 +1,177 @@ +/* + * libqos driver virtio-iommu-pci framework + * + * Copyright (c) 2020 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2 as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see + */ + +#include "qemu/osdep.h" +#include "libqtest.h" +#include "qemu/module.h" +#include "libqos/qgraph.h" +#include "libqos/virtio-iommu.h" +#include "hw/virtio/virtio-iommu.h" + +static QGuestAllocator *alloc; + +/* virtio-iommu-device */ +static void *qvirtio_iommu_get_driver(QVirtioIOMMU *v_iommu, + const char *interface) +{ + if (!g_strcmp0(interface, "virtio-iommu")) { + return v_iommu; + } + if (!g_strcmp0(interface, "virtio")) { + return v_iommu->vdev; + } + + fprintf(stderr, "%s not present in virtio-iommu-device\n", interface); + g_assert_not_reached(); +} + +static void *qvirtio_iommu_device_get_driver(void *object, + const char *interface) +{ + QVirtioIOMMUDevice *v_iommu =3D object; + return qvirtio_iommu_get_driver(&v_iommu->iommu, interface); +} + +static void virtio_iommu_cleanup(QVirtioIOMMU *interface) +{ + qvirtqueue_cleanup(interface->vdev->bus, interface->vq, alloc); +} + +static void virtio_iommu_setup(QVirtioIOMMU *interface) +{ + QVirtioDevice *vdev =3D interface->vdev; + uint64_t features; + + features =3D qvirtio_get_features(vdev); + features &=3D ~(QVIRTIO_F_BAD_FEATURE | + (1ull << VIRTIO_RING_F_INDIRECT_DESC) | + (1ull << VIRTIO_RING_F_EVENT_IDX) | + (1ull << VIRTIO_IOMMU_F_BYPASS)); + qvirtio_set_features(vdev, features); + interface->vq =3D qvirtqueue_setup(interface->vdev, alloc, 0); + qvirtio_set_driver_ok(interface->vdev); +} + +static void qvirtio_iommu_device_destructor(QOSGraphObject *obj) +{ + QVirtioIOMMUDevice *v_iommu =3D (QVirtioIOMMUDevice *) obj; + QVirtioIOMMU *iommu =3D &v_iommu->iommu; + + virtio_iommu_cleanup(iommu); +} + +static void qvirtio_iommu_device_start_hw(QOSGraphObject *obj) +{ + QVirtioIOMMUDevice *v_iommu =3D (QVirtioIOMMUDevice *) obj; + QVirtioIOMMU *iommu =3D &v_iommu->iommu; + + virtio_iommu_setup(iommu); +} + +static void *virtio_iommu_device_create(void *virtio_dev, + QGuestAllocator *t_alloc, + void *addr) +{ + QVirtioIOMMUDevice *virtio_rdevice =3D g_new0(QVirtioIOMMUDevice, 1); + QVirtioIOMMU *interface =3D &virtio_rdevice->iommu; + + interface->vdev =3D virtio_dev; + alloc =3D t_alloc; + + virtio_rdevice->obj.get_driver =3D qvirtio_iommu_device_get_driver; + virtio_rdevice->obj.destructor =3D qvirtio_iommu_device_destructor; + virtio_rdevice->obj.start_hw =3D qvirtio_iommu_device_start_hw; + + return &virtio_rdevice->obj; +} + +/* virtio-iommu-pci */ +static void *qvirtio_iommu_pci_get_driver(void *object, const char *interf= ace) +{ + QVirtioIOMMUPCI *v_iommu =3D object; + if (!g_strcmp0(interface, "pci-device")) { + return v_iommu->pci_vdev.pdev; + } + return qvirtio_iommu_get_driver(&v_iommu->iommu, interface); +} + +static void qvirtio_iommu_pci_destructor(QOSGraphObject *obj) +{ + QVirtioIOMMUPCI *iommu_pci =3D (QVirtioIOMMUPCI *) obj; + QVirtioIOMMU *interface =3D &iommu_pci->iommu; + QOSGraphObject *pci_vobj =3D &iommu_pci->pci_vdev.obj; + + virtio_iommu_cleanup(interface); + qvirtio_pci_destructor(pci_vobj); +} + +static void qvirtio_iommu_pci_start_hw(QOSGraphObject *obj) +{ + QVirtioIOMMUPCI *iommu_pci =3D (QVirtioIOMMUPCI *) obj; + QVirtioIOMMU *interface =3D &iommu_pci->iommu; + QOSGraphObject *pci_vobj =3D &iommu_pci->pci_vdev.obj; + + qvirtio_pci_start_hw(pci_vobj); + virtio_iommu_setup(interface); +} + + +static void *virtio_iommu_pci_create(void *pci_bus, QGuestAllocator *t_all= oc, + void *addr) +{ + QVirtioIOMMUPCI *virtio_rpci =3D g_new0(QVirtioIOMMUPCI, 1); + QVirtioIOMMU *interface =3D &virtio_rpci->iommu; + QOSGraphObject *obj =3D &virtio_rpci->pci_vdev.obj; + + virtio_pci_init(&virtio_rpci->pci_vdev, pci_bus, addr); + interface->vdev =3D &virtio_rpci->pci_vdev.vdev; + alloc =3D t_alloc; + + obj->get_driver =3D qvirtio_iommu_pci_get_driver; + obj->start_hw =3D qvirtio_iommu_pci_start_hw; + obj->destructor =3D qvirtio_iommu_pci_destructor; + + return obj; +} + +static void virtio_iommu_register_nodes(void) +{ + QPCIAddress addr =3D { + .devfn =3D QPCI_DEVFN(4, 0), + }; + + QOSGraphEdgeOptions opts =3D { + .extra_device_opts =3D "addr=3D04.0", + }; + + /* virtio-iommu-device */ + qos_node_create_driver("virtio-iommu-device", virtio_iommu_device_crea= te); + qos_node_consumes("virtio-iommu-device", "virtio-bus", NULL); + qos_node_produces("virtio-iommu-device", "virtio"); + qos_node_produces("virtio-iommu-device", "virtio-iommu"); + + /* virtio-iommu-pci */ + add_qpci_address(&opts, &addr); + qos_node_create_driver("virtio-iommu-pci", virtio_iommu_pci_create); + qos_node_consumes("virtio-iommu-pci", "pci-bus", &opts); + qos_node_produces("virtio-iommu-pci", "pci-device"); + qos_node_produces("virtio-iommu-pci", "virtio"); + qos_node_produces("virtio-iommu-pci", "virtio-iommu"); +} + +libqos_init(virtio_iommu_register_nodes); diff --git a/tests/qtest/libqos/virtio-iommu.h b/tests/qtest/libqos/virtio-= iommu.h new file mode 100644 index 0000000000..f1123c7438 --- /dev/null +++ b/tests/qtest/libqos/virtio-iommu.h @@ -0,0 +1,45 @@ +/* + * libqos driver virtio-iommu-pci framework + * + * Copyright (c) 2020 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2 as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see + */ + +#ifndef TESTS_LIBQOS_VIRTIO_IOMMU_H +#define TESTS_LIBQOS_VIRTIO_IOMMU_H + +#include "libqos/qgraph.h" +#include "libqos/virtio.h" +#include "libqos/virtio-pci.h" + +typedef struct QVirtioIOMMU QVirtioIOMMU; +typedef struct QVirtioIOMMUPCI QVirtioIOMMUPCI; +typedef struct QVirtioIOMMUDevice QVirtioIOMMUDevice; + +struct QVirtioIOMMU { + QVirtioDevice *vdev; + QVirtQueue *vq; +}; + +struct QVirtioIOMMUPCI { + QVirtioPCIDevice pci_vdev; + QVirtioIOMMU iommu; +}; + +struct QVirtioIOMMUDevice { + QOSGraphObject obj; + QVirtioIOMMU iommu; +}; + +#endif diff --git a/tests/qtest/virtio-iommu-test.c b/tests/qtest/virtio-iommu-tes= t.c new file mode 100644 index 0000000000..800793f7d5 --- /dev/null +++ b/tests/qtest/virtio-iommu-test.c @@ -0,0 +1,306 @@ +/* + * QTest testcase for VirtIO IOMMU + * + * Copyright (c) 2020 Red Hat, Inc. + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "libqtest-single.h" +#include "qemu/module.h" +#include "libqos/qgraph.h" +#include "libqos/virtio-iommu.h" +#include "hw/virtio/virtio-iommu.h" + +#define PCI_SLOT_HP 0x06 +#define QVIRTIO_IOMMU_TIMEOUT_US (30 * 1000 * 1000) + +static QGuestAllocator *alloc; + +static void iommu_hotplug(void *obj, void *data, QGuestAllocator *alloc) +{ + QVirtioPCIDevice *dev =3D obj; + QTestState *qts =3D dev->pdev->bus->qts; + + qtest_qmp_device_add(qts, "virtio-iommu-pci", "iommu1", + "{'addr': %s}", stringify(PCI_SLOT_HP)); + +} + +static void pci_config(void *obj, void *data, QGuestAllocator *t_alloc) +{ + QVirtioIOMMU *v_iommu =3D obj; + QVirtioDevice *dev =3D v_iommu->vdev; + uint64_t input_range_start =3D qvirtio_config_readq(dev, 8); + uint64_t input_range_end =3D qvirtio_config_readq(dev, 16); + uint32_t domain_range_start =3D qvirtio_config_readl(dev, 24); + uint32_t domain_range_end =3D qvirtio_config_readl(dev, 28); + + g_assert_cmpint(input_range_start, =3D=3D, 0); + g_assert_cmphex(input_range_end, =3D=3D, 0xFFFFFFFFFFFFFFFF); + g_assert_cmpint(domain_range_start, =3D=3D, 0); + g_assert_cmpint(domain_range_end, =3D=3D, 32); +} + +/** + * send_attach_detach - Send an attach/detach command to the device + * @type: VIRTIO_IOMMU_T_ATTACH/VIRTIO_IOMMU_T_DETACH + * @domain: domain the end point is attached to + * @ep: end-point + */ +static int send_attach_detach(QTestState *qts, QVirtioIOMMU *v_iommu, + uint8_t type, uint32_t domain, uint32_t ep) +{ + QVirtioDevice *dev =3D v_iommu->vdev; + QVirtQueue *vq =3D v_iommu->vq; + uint64_t ro_addr, wr_addr; + uint32_t free_head; + struct virtio_iommu_req_attach req; /* same layout as detach */ + size_t ro_size =3D sizeof(req) - sizeof(struct virtio_iommu_req_tail); + size_t wr_size =3D sizeof(struct virtio_iommu_req_tail); + char buffer[64]; + int ret; + + req.head.type =3D type; + req.domain =3D domain; + req.endpoint =3D ep; + + ro_addr =3D guest_alloc(alloc, ro_size); + wr_addr =3D guest_alloc(alloc, wr_size); + + qtest_memwrite(qts, ro_addr, &req, ro_size); + free_head =3D qvirtqueue_add(qts, vq, ro_addr, ro_size, false, true); + qvirtqueue_add(qts, vq, wr_addr, wr_size, true, false); + qvirtqueue_kick(qts, dev, vq, free_head); + qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, + QVIRTIO_IOMMU_TIMEOUT_US); + qtest_memread(qts, wr_addr, buffer, wr_size); + ret =3D ((struct virtio_iommu_req_tail *)buffer)->status; + guest_free(alloc, ro_addr); + guest_free(alloc, wr_addr); + return ret; +} + +/** + * send_map - Send a map command to the device + * @domain: domain the new binding is attached to + * @virt_start: iova start + * @virt_end: iova end + * @phys_start: base physical address + * @flags: mapping flags + */ +static int send_map(QTestState *qts, QVirtioIOMMU *v_iommu, + uint32_t domain, uint64_t virt_start, uint64_t virt_en= d, + uint64_t phys_start, uint32_t flags) +{ + QVirtioDevice *dev =3D v_iommu->vdev; + QVirtQueue *vq =3D v_iommu->vq; + uint64_t ro_addr, wr_addr; + uint32_t free_head; + struct virtio_iommu_req_map req; + size_t ro_size =3D sizeof(req) - sizeof(struct virtio_iommu_req_tail); + size_t wr_size =3D sizeof(struct virtio_iommu_req_tail); + char buffer[64]; + int ret; + + req.head.type =3D VIRTIO_IOMMU_T_MAP; + req.domain =3D domain; + req.virt_start =3D virt_start; + req.virt_end =3D virt_end; + req.phys_start =3D phys_start; + req.flags =3D flags; + + ro_addr =3D guest_alloc(alloc, ro_size); + wr_addr =3D guest_alloc(alloc, wr_size); + + qtest_memwrite(qts, ro_addr, &req, ro_size); + free_head =3D qvirtqueue_add(qts, vq, ro_addr, ro_size, false, true); + qvirtqueue_add(qts, vq, wr_addr, wr_size, true, false); + qvirtqueue_kick(qts, dev, vq, free_head); + qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, + QVIRTIO_IOMMU_TIMEOUT_US); + memread(wr_addr, buffer, wr_size); + ret =3D ((struct virtio_iommu_req_tail *)buffer)->status; + guest_free(alloc, ro_addr); + guest_free(alloc, wr_addr); + return ret; +} + +/** + * send_unmap - Send an unmap command to the device + * @domain: domain the new binding is attached to + * @virt_start: iova start + * @virt_end: iova end + */ +static int send_unmap(QTestState *qts, QVirtioIOMMU *v_iommu, + uint32_t domain, uint64_t virt_start, uint64_t virt_= end) +{ + QVirtioDevice *dev =3D v_iommu->vdev; + QVirtQueue *vq =3D v_iommu->vq; + uint64_t ro_addr, wr_addr; + uint32_t free_head; + struct virtio_iommu_req_unmap req; + size_t ro_size =3D sizeof(req) - sizeof(struct virtio_iommu_req_tail); + size_t wr_size =3D sizeof(struct virtio_iommu_req_tail); + char buffer[64]; + int ret; + + req.head.type =3D VIRTIO_IOMMU_T_UNMAP; + req.domain =3D domain; + req.virt_start =3D virt_start; + req.virt_end =3D virt_end; + + ro_addr =3D guest_alloc(alloc, ro_size); + wr_addr =3D guest_alloc(alloc, wr_size); + + qtest_memwrite(qts, ro_addr, &req, ro_size); + free_head =3D qvirtqueue_add(qts, vq, ro_addr, ro_size, false, true); + qvirtqueue_add(qts, vq, wr_addr, wr_size, true, false); + qvirtqueue_kick(qts, dev, vq, free_head); + qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, + QVIRTIO_IOMMU_TIMEOUT_US); + memread(wr_addr, buffer, wr_size); + ret =3D ((struct virtio_iommu_req_tail *)buffer)->status; + guest_free(alloc, ro_addr); + guest_free(alloc, wr_addr); + return ret; +} + +/* Test unmap scenari documented in the spec v0.12 */ +static void test_attach_detach(void *obj, void *data, QGuestAllocator *t_a= lloc) +{ + QVirtioIOMMU *v_iommu =3D obj; + QTestState *qts =3D global_qtest; + int ret; + + alloc =3D t_alloc; + + /* type, domain, ep */ + + /* attach ep0 to domain 0 */ + ret =3D send_attach_detach(qts, v_iommu, VIRTIO_IOMMU_T_ATTACH, 0, 0); + g_assert_cmpint(ret, =3D=3D, 0); + + /* attach a non existing device (1) */ + ret =3D send_attach_detach(qts, v_iommu, VIRTIO_IOMMU_T_ATTACH, 0, 444= ); + g_assert_cmpint(ret, =3D=3D, VIRTIO_IOMMU_S_NOENT); + + /* detach a non existing device (1) */ + ret =3D send_attach_detach(qts, v_iommu, VIRTIO_IOMMU_T_DETACH, 0, 1); + g_assert_cmpint(ret, =3D=3D, VIRTIO_IOMMU_S_NOENT); + + /* move ep0 from domain 0 to domain 1 */ + ret =3D send_attach_detach(qts, v_iommu, VIRTIO_IOMMU_T_ATTACH, 1, 0); + g_assert_cmpint(ret, =3D=3D, 0); + + /* detach ep0 to domain 0 */ + ret =3D send_attach_detach(qts, v_iommu, VIRTIO_IOMMU_T_DETACH, 0, 0); + g_assert_cmpint(ret, =3D=3D, VIRTIO_IOMMU_S_INVAL); + + /* detach ep0 from domain 1 */ + ret =3D send_attach_detach(qts, v_iommu, VIRTIO_IOMMU_T_DETACH, 1, 0); + g_assert_cmpint(ret, =3D=3D, 0); + + ret =3D send_attach_detach(qts, v_iommu, VIRTIO_IOMMU_T_ATTACH, 1, 0); + g_assert_cmpint(ret, =3D=3D, 0); + ret =3D send_map(qts, v_iommu, 1, 0x0, 0xFFF, 0xa1000, + VIRTIO_IOMMU_MAP_F_READ); + g_assert_cmpint(ret, =3D=3D, 0); + ret =3D send_map(qts, v_iommu, 1, 0x2000, 0x2FFF, 0xb1000, + VIRTIO_IOMMU_MAP_F_READ); + g_assert_cmpint(ret, =3D=3D, 0); + ret =3D send_attach_detach(qts, v_iommu, VIRTIO_IOMMU_T_DETACH, 1, 0); + g_assert_cmpint(ret, =3D=3D, 0); +} + +static void test_map_unmap(void *obj, void *data, QGuestAllocator *t_alloc= ) +{ + QVirtioIOMMU *v_iommu =3D obj; + QTestState *qts =3D global_qtest; + int ret; + + alloc =3D t_alloc; + + /* attach ep0 to domain 1 */ + ret =3D send_attach_detach(qts, v_iommu, VIRTIO_IOMMU_T_ATTACH, 1, 0); + g_assert_cmpint(ret, =3D=3D, 0); + + ret =3D send_map(qts, v_iommu, 0, 0, 0xFFF, 0xa1000, VIRTIO_IOMMU_MAP_= F_READ); + g_assert_cmpint(ret, =3D=3D, VIRTIO_IOMMU_S_NOENT); + + /* domain, virt start, virt end, phys start, flags */ + ret =3D send_map(qts, v_iommu, 1, 0, 0xFFF, 0xa1000, VIRTIO_IOMMU_MAP_= F_READ); + g_assert_cmpint(ret, =3D=3D, 0); + + ret =3D send_unmap(qts, v_iommu, 4, 0x10, 0xFFF); + g_assert_cmpint(ret, =3D=3D, VIRTIO_IOMMU_S_NOENT); + + ret =3D send_unmap(qts, v_iommu, 1, 0x10, 0xFFF); + g_assert_cmpint(ret, =3D=3D, VIRTIO_IOMMU_S_RANGE); + + ret =3D send_unmap(qts, v_iommu, 1, 0, 0x1000); + g_assert_cmpint(ret, =3D=3D, 0); /* unmap everything */ + + /* Spec example sequence */ + + /* 1 */ + ret =3D send_unmap(qts, v_iommu, 1, 0, 4); + g_assert_cmpint(ret, =3D=3D, 0); /* doesn't unmap anything */ + + /* 2 */ + send_map(qts, v_iommu, 1, 0, 9, 0xa1000, VIRTIO_IOMMU_MAP_F_READ); + ret =3D send_unmap(qts, v_iommu, 1, 0, 9); + g_assert_cmpint(ret, =3D=3D, 0); /* unmaps [0,9] */ + + /* 3 */ + send_map(qts, v_iommu, 1, 0, 4, 0xb1000, VIRTIO_IOMMU_MAP_F_READ); + send_map(qts, v_iommu, 1, 5, 9, 0xb2000, VIRTIO_IOMMU_MAP_F_READ); + ret =3D send_unmap(qts, v_iommu, 1, 0, 9); + g_assert_cmpint(ret, =3D=3D, 0); /* unmaps [0,4] and [5,9] */ + + /* 4 */ + send_map(qts, v_iommu, 1, 0, 9, 0xc1000, VIRTIO_IOMMU_MAP_F_READ); + ret =3D send_unmap(qts, v_iommu, 1, 0, 4); + g_assert_cmpint(ret, =3D=3D, VIRTIO_IOMMU_S_RANGE); /* doesn't unmap a= nything */ + + ret =3D send_unmap(qts, v_iommu, 1, 0, 10); + g_assert_cmpint(ret, =3D=3D, 0); + + /* 5 */ + send_map(qts, v_iommu, 1, 0, 4, 0xd1000, VIRTIO_IOMMU_MAP_F_READ); + send_map(qts, v_iommu, 1, 5, 9, 0xd2000, VIRTIO_IOMMU_MAP_F_READ); + ret =3D send_unmap(qts, v_iommu, 1, 0, 4); + g_assert_cmpint(ret, =3D=3D, 0); /* unmaps [0,4] */ + + ret =3D send_unmap(qts, v_iommu, 1, 5, 9); + g_assert_cmpint(ret, =3D=3D, 0); + + /* 6 */ + send_map(qts, v_iommu, 1, 0, 4, 0xe2000, VIRTIO_IOMMU_MAP_F_READ); + ret =3D send_unmap(qts, v_iommu, 1, 0, 9); + g_assert_cmpint(ret, =3D=3D, 0); /* unmaps [0,4] */ + + /* 7 */ + send_map(qts, v_iommu, 1, 0, 4, 0xf2000, VIRTIO_IOMMU_MAP_F_READ); + send_map(qts, v_iommu, 1, 10, 14, 0xf3000, VIRTIO_IOMMU_MAP_F_READ); + ret =3D send_unmap(qts, v_iommu, 1, 0, 14); + g_assert_cmpint(ret, =3D=3D, 0); /* unmaps [0,4] and [10,14] */ + + send_unmap(qts, v_iommu, 1, 0, 100); + send_map(qts, v_iommu, 1, 10, 14, 0xf3000, VIRTIO_IOMMU_MAP_F_READ); + send_map(qts, v_iommu, 1, 0, 4, 0xf2000, VIRTIO_IOMMU_MAP_F_READ); + ret =3D send_unmap(qts, v_iommu, 1, 0, 4); + g_assert_cmpint(ret, =3D=3D, 0); /* unmaps [0,4] and [10,14] */ +} + +static void register_virtio_iommu_test(void) +{ + qos_add_test("hotplug", "virtio-iommu-pci", iommu_hotplug, NULL); + qos_add_test("config", "virtio-iommu", pci_config, NULL); + qos_add_test("attach_detach", "virtio-iommu", test_attach_detach, NULL= ); + qos_add_test("map_unmap", "virtio-iommu", test_map_unmap, NULL); +} + +libqos_init(register_virtio_iommu_test); --=20 2.20.1