/* * 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 2.1 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 "qemu/module.h" #include "qgraph.h" #include "virtio-rng.h" /* virtio-rng-device */ static void *qvirtio_rng_get_driver(QVirtioRng *v_rng, const char *interface) { if (!g_strcmp0(interface, "virtio-rng")) { return v_rng; } if (!g_strcmp0(interface, "virtio")) { return v_rng->vdev; } fprintf(stderr, "%s not present in virtio-rng-device\n", interface); g_assert_not_reached(); } static void *qvirtio_rng_device_get_driver(void *object, const char *interface) { QVirtioRngDevice *v_rng = object; return qvirtio_rng_get_driver(&v_rng->rng, interface); } static void *virtio_rng_device_create(void *virtio_dev, QGuestAllocator *t_alloc, void *addr) { QVirtioRngDevice *virtio_rdevice = g_new0(QVirtioRngDevice, 1); QVirtioRng *interface = &virtio_rdevice->rng; interface->vdev = virtio_dev; virtio_rdevice->obj.get_driver = qvirtio_rng_device_get_driver; return &virtio_rdevice->obj; } /* virtio-rng-pci */ static void *qvirtio_rng_pci_get_driver(void *object, const char *interface) { QVirtioRngPCI *v_rng = object; if (!g_strcmp0(interface, "pci-device")) { return v_rng->pci_vdev.pdev; } return qvirtio_rng_get_driver(&v_rng->rng, interface); } static void *virtio_rng_pci_create(void *pci_bus, QGuestAllocator *t_alloc, void *addr) { QVirtioRngPCI *virtio_rpci = g_new0(QVirtioRngPCI, 1); QVirtioRng *interface = &virtio_rpci->rng; QOSGraphObject *obj = &virtio_rpci->pci_vdev.obj; virtio_pci_init(&virtio_rpci->pci_vdev, pci_bus, addr); interface->vdev = &virtio_rpci->pci_vdev.vdev; obj->get_driver = qvirtio_rng_pci_get_driver; return obj; } static void virtio_rng_register_nodes(void) { QPCIAddress addr = { .devfn = QPCI_DEVFN(4, 0), }; QOSGraphEdgeOptions opts = { .extra_device_opts = "addr=04.0", }; /* virtio-rng-device */ qos_node_create_driver("virtio-rng-device", virtio_rng_device_create); qos_node_consumes("virtio-rng-device", "virtio-bus", NULL); qos_node_produces("virtio-rng-device", "virtio"); qos_node_produces("virtio-rng-device", "virtio-rng"); /* virtio-rng-pci */ add_qpci_address(&opts, &addr); qos_node_create_driver("virtio-rng-pci", virtio_rng_pci_create); qos_node_consumes("virtio-rng-pci", "pci-bus", &opts); qos_node_produces("virtio-rng-pci", "pci-device"); qos_node_produces("virtio-rng-pci", "virtio"); qos_node_produces("virtio-rng-pci", "virtio-rng"); } libqos_init(virtio_rng_register_nodes);