diff options
author | Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com> | 2018-07-20 15:41:46 +0200 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-03-07 17:28:27 +0100 |
commit | 9d44725793700112b5a0ff71f64f7059f0a4b6c9 (patch) | |
tree | 03e34803dc1cdbc96a6b7fdf09bc8a04c1d3618f /tests/libqos | |
parent | 1657291afd95f59dc3ef4c9545a7badf7dd75b35 (diff) |
tests/libqos: virtio-9p driver and interface nodes
Add qgraph nodes for virtio-9p-pci and virtio-9p-device.
Both nodes produce virtio-9p, but virtio-9p-pci receives
a pci-bus and overrides virtio-pci QOSGraphObject and its functions,
while virtio-9p-device receives a virtio and implements
its own functions
Signed-off-by: Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tests/libqos')
-rw-r--r-- | tests/libqos/virtio-9p.c | 173 | ||||
-rw-r--r-- | tests/libqos/virtio-9p.h | 42 |
2 files changed, 215 insertions, 0 deletions
diff --git a/tests/libqos/virtio-9p.c b/tests/libqos/virtio-9p.c new file mode 100644 index 0000000000..a378b56fa9 --- /dev/null +++ b/tests/libqos/virtio-9p.c @@ -0,0 +1,173 @@ +/* + * libqos driver framework + * + * Copyright (c) 2018 Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com> + * + * 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 <http://www.gnu.org/licenses/> + */ + +#include "qemu/osdep.h" +#include "libqtest.h" +#include "standard-headers/linux/virtio_ids.h" +#include "libqos/virtio-9p.h" +#include "libqos/qgraph.h" + +static QGuestAllocator *alloc; + +static void virtio_9p_cleanup(QVirtio9P *interface) +{ + qvirtqueue_cleanup(interface->vdev->bus, interface->vq, alloc); +} + +static void virtio_9p_setup(QVirtio9P *interface) +{ + interface->vq = qvirtqueue_setup(interface->vdev, alloc, 0); + qvirtio_set_driver_ok(interface->vdev); +} + +/* virtio-9p-device */ +static void virtio_9p_device_destructor(QOSGraphObject *obj) +{ + QVirtio9PDevice *v_9p = (QVirtio9PDevice *) obj; + QVirtio9P *v9p = &v_9p->v9p; + + virtio_9p_cleanup(v9p); +} + +static void virtio_9p_device_start_hw(QOSGraphObject *obj) +{ + QVirtio9PDevice *v_9p = (QVirtio9PDevice *) obj; + QVirtio9P *v9p = &v_9p->v9p; + + virtio_9p_setup(v9p); +} + +static void *virtio_9p_get_driver(QVirtio9P *v_9p, + const char *interface) +{ + if (!g_strcmp0(interface, "virtio-9p")) { + return v_9p; + } + if (!g_strcmp0(interface, "virtio")) { + return v_9p->vdev; + } + + fprintf(stderr, "%s not present in virtio-9p-device\n", interface); + g_assert_not_reached(); +} + +static void *virtio_9p_device_get_driver(void *object, const char *interface) +{ + QVirtio9PDevice *v_9p = object; + return virtio_9p_get_driver(&v_9p->v9p, interface); +} + +static void *virtio_9p_device_create(void *virtio_dev, + QGuestAllocator *t_alloc, + void *addr) +{ + QVirtio9PDevice *virtio_device = g_new0(QVirtio9PDevice, 1); + QVirtio9P *interface = &virtio_device->v9p; + + interface->vdev = virtio_dev; + alloc = t_alloc; + + virtio_device->obj.destructor = virtio_9p_device_destructor; + virtio_device->obj.get_driver = virtio_9p_device_get_driver; + virtio_device->obj.start_hw = virtio_9p_device_start_hw; + + return &virtio_device->obj; +} + +/* virtio-9p-pci */ +static void virtio_9p_pci_destructor(QOSGraphObject *obj) +{ + QVirtio9PPCI *v9_pci = (QVirtio9PPCI *) obj; + QVirtio9P *interface = &v9_pci->v9p; + QOSGraphObject *pci_vobj = &v9_pci->pci_vdev.obj; + + virtio_9p_cleanup(interface); + qvirtio_pci_destructor(pci_vobj); +} + +static void virtio_9p_pci_start_hw(QOSGraphObject *obj) +{ + QVirtio9PPCI *v9_pci = (QVirtio9PPCI *) obj; + QVirtio9P *interface = &v9_pci->v9p; + QOSGraphObject *pci_vobj = &v9_pci->pci_vdev.obj; + + qvirtio_pci_start_hw(pci_vobj); + virtio_9p_setup(interface); +} + +static void *virtio_9p_pci_get_driver(void *object, const char *interface) +{ + QVirtio9PPCI *v_9p = object; + if (!g_strcmp0(interface, "pci-device")) { + return v_9p->pci_vdev.pdev; + } + return virtio_9p_get_driver(&v_9p->v9p, interface); +} + +static void *virtio_9p_pci_create(void *pci_bus, QGuestAllocator *t_alloc, + void *addr) +{ + QVirtio9PPCI *v9_pci = g_new0(QVirtio9PPCI, 1); + QVirtio9P *interface = &v9_pci->v9p; + QOSGraphObject *obj = &v9_pci->pci_vdev.obj; + + virtio_pci_init(&v9_pci->pci_vdev, pci_bus, addr); + interface->vdev = &v9_pci->pci_vdev.vdev; + alloc = t_alloc; + + g_assert_cmphex(interface->vdev->device_type, ==, VIRTIO_ID_9P); + + obj->destructor = virtio_9p_pci_destructor; + obj->start_hw = virtio_9p_pci_start_hw; + obj->get_driver = virtio_9p_pci_get_driver; + + return obj; +} + +static void virtio_9p_register_nodes(void) +{ + const char *str_simple = "fsdev=fsdev0,mount_tag=" MOUNT_TAG; + const char *str_addr = "fsdev=fsdev0,addr=04.0,mount_tag=" MOUNT_TAG; + + QPCIAddress addr = { + .devfn = QPCI_DEVFN(4, 0), + }; + + QOSGraphEdgeOptions opts = { + .before_cmd_line = "-fsdev synth,id=fsdev0", + }; + + /* virtio-9p-device */ + opts.extra_device_opts = str_simple, + qos_node_create_driver("virtio-9p-device", virtio_9p_device_create); + qos_node_consumes("virtio-9p-device", "virtio-bus", &opts); + qos_node_produces("virtio-9p-device", "virtio"); + qos_node_produces("virtio-9p-device", "virtio-9p"); + + /* virtio-9p-pci */ + opts.extra_device_opts = str_addr; + add_qpci_address(&opts, &addr); + qos_node_create_driver("virtio-9p-pci", virtio_9p_pci_create); + qos_node_consumes("virtio-9p-pci", "pci-bus", &opts); + qos_node_produces("virtio-9p-pci", "pci-device"); + qos_node_produces("virtio-9p-pci", "virtio"); + qos_node_produces("virtio-9p-pci", "virtio-9p"); + +} + +libqos_init(virtio_9p_register_nodes); diff --git a/tests/libqos/virtio-9p.h b/tests/libqos/virtio-9p.h new file mode 100644 index 0000000000..dba22772b5 --- /dev/null +++ b/tests/libqos/virtio-9p.h @@ -0,0 +1,42 @@ +/* + * libqos driver framework + * + * Copyright (c) 2018 Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com> + * + * 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 <http://www.gnu.org/licenses/> + */ + +#include "libqos/qgraph.h" +#include "libqos/virtio.h" +#include "libqos/virtio-pci.h" + +typedef struct QVirtio9P QVirtio9P; +typedef struct QVirtio9PPCI QVirtio9PPCI; +typedef struct QVirtio9PDevice QVirtio9PDevice; + +#define MOUNT_TAG "qtest" + +struct QVirtio9P { + QVirtioDevice *vdev; + QVirtQueue *vq; +}; + +struct QVirtio9PPCI { + QVirtioPCIDevice pci_vdev; + QVirtio9P v9p; +}; + +struct QVirtio9PDevice { + QOSGraphObject obj; + QVirtio9P v9p; +}; |