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Tsirkin" , sgarzare@redhat.com, =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , peter.griffin@linaro.org, Paolo Bonzini Subject: [PATCH 09/12] tests/qtest: add virtio-video test Date: Wed, 22 Mar 2023 15:21:29 +0100 Message-Id: <20230322142132.22909-10-aesteve@redhat.com> In-Reply-To: <20230322142132.22909-1-aesteve@redhat.com> References: <20230322142132.22909-1-aesteve@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Received-SPF: pass client-ip=170.10.129.124; envelope-from=aesteve@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Add some minimal testing of the vhost-user-video backend similar to what is tested for other vhost-user devices. For now it only stresses the backend instantiation and some message passing through the control socket. Signed-off-by: Albert Esteve --- tests/qtest/libqos/meson.build | 1 + tests/qtest/libqos/virtio-video.c | 179 ++++++++++++++++++++++++++++++ tests/qtest/libqos/virtio-video.h | 39 +++++++ tests/qtest/vhost-user-test.c | 32 ++++++ 4 files changed, 251 insertions(+) create mode 100644 tests/qtest/libqos/virtio-video.c create mode 100644 tests/qtest/libqos/virtio-video.h diff --git a/tests/qtest/libqos/meson.build b/tests/qtest/libqos/meson.build index cc209a8de5..055bd47928 100644 --- a/tests/qtest/libqos/meson.build +++ b/tests/qtest/libqos/meson.build @@ -46,6 +46,7 @@ libqos_srcs = files( 'virtio-serial.c', 'virtio-iommu.c', 'virtio-gpio.c', + 'virtio-video.c', 'generic-pcihost.c', # qgraph machines: diff --git a/tests/qtest/libqos/virtio-video.c b/tests/qtest/libqos/virtio-video.c new file mode 100644 index 0000000000..f61c34753d --- /dev/null +++ b/tests/qtest/libqos/virtio-video.c @@ -0,0 +1,179 @@ +/* + * libqos virtio-video driver + * + * Copyright (c) 2023 Red Hat Inc. + * + * Authors: + * Albert Esteve + * (based on virtio-gpio.c) + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "qemu/osdep.h" +#include "standard-headers/linux/virtio_config.h" +#include "../libqtest.h" +#include "qemu/module.h" +#include "qgraph.h" +#include "virtio-video.h" + +#define NUM_VQUEUES 2 +#define PCI_SLOT 0x04 +#define PCI_FN 0x00 + +static QGuestAllocator *alloc; + +static void virtio_video_cleanup(QVhostUserVideo *video) +{ + QVirtioDevice *vdev = video->vdev; + int i; + + for (i = 0; i < NUM_VQUEUES; i++) { + qvirtqueue_cleanup(vdev->bus, video->queues[i], alloc); + } + g_free(video->queues); +} + +/* + * This handles the VirtIO setup from the point of view of the driver + * frontend and therefore doesn't present any vhost specific features + * and in fact masks off the re-used bit. + */ +static void virtio_video_setup(QVhostUserVideo *video) +{ + QVirtioDevice *vdev = video->vdev; + uint64_t features; + int i; + + features = qvirtio_get_features(vdev); + features &= ~QVIRTIO_F_BAD_FEATURE; + qvirtio_set_features(vdev, features); + + video->queues = g_new(QVirtQueue *, NUM_VQUEUES); + for (i = 0; i < NUM_VQUEUES; i++) { + video->queues[i] = qvirtqueue_setup(vdev, alloc, i); + } + qvirtio_set_driver_ok(vdev); +} + +static void *qvirtio_video_get_driver(QVhostUserVideo *v_video, + const char *interface) +{ + if (!g_strcmp0(interface, "vhost-user-video")) { + return v_video; + } + if (!g_strcmp0(interface, "virtio")) { + return v_video->vdev; + } + + g_assert_not_reached(); +} + +static void *qvirtio_video_device_get_driver(void *object, + const char *interface) +{ + QVhostUserVideoDevice *v_video = object; + return qvirtio_video_get_driver(&v_video->video, interface); +} + +/* virtio-video (mmio) */ +static void qvirtio_video_device_destructor(QOSGraphObject *obj) +{ + QVhostUserVideoDevice *video_dev = (QVhostUserVideoDevice *) obj; + virtio_video_cleanup(&video_dev->video); +} + +static void qvirtio_video_device_start_hw(QOSGraphObject *obj) +{ + QVhostUserVideoDevice *video_dev = (QVhostUserVideoDevice *) obj; + virtio_video_setup(&video_dev->video); +} + +static void *virtio_video_device_create(void *virtio_dev, + QGuestAllocator *t_alloc, + void *addr) +{ + QVhostUserVideoDevice *virtio_device = g_new0(QVhostUserVideoDevice, 1); + QVhostUserVideo *interface = &virtio_device->video; + + interface->vdev = virtio_dev; + alloc = t_alloc; + + virtio_device->obj.get_driver = qvirtio_video_device_get_driver; + virtio_device->obj.start_hw = qvirtio_video_device_start_hw; + virtio_device->obj.destructor = qvirtio_video_device_destructor; + + return &virtio_device->obj; +} + +/* virtio-video-pci */ +static void qvirtio_video_pci_destructor(QOSGraphObject *obj) +{ + QVhostUserVideoPCI *video_pci = (QVhostUserVideoPCI *) obj; + QOSGraphObject *pci_vobj = &video_pci->pci_vdev.obj; + + virtio_video_cleanup(&video_pci->video); + qvirtio_pci_destructor(pci_vobj); +} + +static void qvirtio_video_pci_start_hw(QOSGraphObject *obj) +{ + QVhostUserVideoPCI *video_pci = (QVhostUserVideoPCI *) obj; + QOSGraphObject *pci_vobj = &video_pci->pci_vdev.obj; + + qvirtio_pci_start_hw(pci_vobj); + virtio_video_setup(&video_pci->video); +} + +static void *qvirtio_video_pci_get_driver(void *object, const char *interface) +{ + QVhostUserVideoPCI *v_video = object; + + if (!g_strcmp0(interface, "pci-device")) { + return v_video->pci_vdev.pdev; + } + return qvirtio_video_get_driver(&v_video->video, interface); +} + +static void *virtio_video_pci_create(void *pci_bus, QGuestAllocator *t_alloc, + void *addr) +{ + QVhostUserVideoPCI *virtio_spci = g_new0(QVhostUserVideoPCI, 1); + QVhostUserVideo *interface = &virtio_spci->video; + QOSGraphObject *obj = &virtio_spci->pci_vdev.obj; + + virtio_pci_init(&virtio_spci->pci_vdev, pci_bus, addr); + interface->vdev = &virtio_spci->pci_vdev.vdev; + alloc = t_alloc; + + obj->get_driver = qvirtio_video_pci_get_driver; + obj->start_hw = qvirtio_video_pci_start_hw; + obj->destructor = qvirtio_video_pci_destructor; + + return obj; +} + +static void virtio_video_register_nodes(void) +{ + QPCIAddress addr = { + .devfn = QPCI_DEVFN(PCI_SLOT, PCI_FN), + }; + + QOSGraphEdgeOptions edge_opts = { + .extra_device_opts = "id=video0,chardev=chr-vhost-user-test", + }; + + /* vhost-user-video-device */ + qos_node_create_driver("vhost-user-video-device", + virtio_video_device_create); + qos_node_consumes("vhost-user-video-device", "virtio-bus", &edge_opts); + qos_node_produces("vhost-user-video-device", "vhost-user-video"); + + /* vhost-user-video-pci */ + add_qpci_address(&edge_opts, &addr); + qos_node_create_driver("vhost-user-video-pci", virtio_video_pci_create); + qos_node_consumes("vhost-user-video-pci", "pci-bus", &edge_opts); + qos_node_produces("vhost-user-video-pci", "vhost-user-video"); +} + +libqos_init(virtio_video_register_nodes); diff --git a/tests/qtest/libqos/virtio-video.h b/tests/qtest/libqos/virtio-video.h new file mode 100644 index 0000000000..6ce42f5edb --- /dev/null +++ b/tests/qtest/libqos/virtio-video.h @@ -0,0 +1,39 @@ +/* + * libqos virtio-video definitions + * + * Copyright (c) 2023 Red Hat Inc. + * + * Authors: + * Albert Esteve + * (based on virtio-gpio.h) + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef TESTS_LIBQOS_VIRTIO_VIDEO_H +#define TESTS_LIBQOS_VIRTIO_VIDEO_H + +#include "qgraph.h" +#include "virtio.h" +#include "virtio-pci.h" + +typedef struct QVhostUserVideo QVhostUserVideo; +typedef struct QVhostUserVideoPCI QVhostUserVideoPCI; +typedef struct QVhostUserVideoDevice QVhostUserVideoDevice; + +struct QVhostUserVideo { + QVirtioDevice *vdev; + QVirtQueue **queues; +}; + +struct QVhostUserVideoPCI { + QVirtioPCIDevice pci_vdev; + QVhostUserVideo video; +}; + +struct QVhostUserVideoDevice { + QOSGraphObject obj; + QVhostUserVideo video; +}; + +#endif /* TESTS_LIBQOS_VIRTIO_VIDEO_H */ diff --git a/tests/qtest/vhost-user-test.c b/tests/qtest/vhost-user-test.c index bf9f7c4248..27d5c4042e 100644 --- a/tests/qtest/vhost-user-test.c +++ b/tests/qtest/vhost-user-test.c @@ -33,6 +33,7 @@ #include "standard-headers/linux/virtio_ids.h" #include "standard-headers/linux/virtio_net.h" #include "standard-headers/linux/virtio_gpio.h" +#include "standard-headers/linux/virtio_video.h" #ifdef CONFIG_LINUX #include @@ -145,6 +146,7 @@ enum { enum { VHOST_USER_NET, VHOST_USER_GPIO, + VHOST_USER_VIDEO, }; typedef struct TestServer { @@ -1156,3 +1158,33 @@ static void register_vhost_gpio_test(void) "vhost-user-gpio", test_read_guest_mem, &opts); } libqos_init(register_vhost_gpio_test); + +static uint64_t vu_video_get_features(TestServer *s) +{ + return 0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES; +} + +static struct vhost_user_ops g_vu_video_ops = { + .type = VHOST_USER_VIDEO, + + .append_opts = append_vhost_gpio_opts, + + .get_features = vu_video_get_features, + .set_features = vu_net_set_features, + .get_protocol_features = vu_gpio_get_protocol_features, +}; + +static void register_vhost_video_test(void) +{ + QOSGraphTestOptions opts = { + .before = vhost_user_test_setup, + .subprocess = true, + .arg = &g_vu_video_ops, + }; + + qemu_add_opts(&qemu_chardev_opts); + + qos_add_test("read-guest-mem/memfile", + "vhost-user-video", test_read_guest_mem, &opts); +} +libqos_init(register_vhost_video_test);