1 /* 2 * Virtio crypto device 3 * 4 * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD. 5 * 6 * Authors: 7 * Gonglei <arei.gonglei@huawei.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or 10 * (at your option) any later version. See the COPYING file in the 11 * top-level directory. 12 * 13 */ 14 #include "qemu/osdep.h" 15 #include "hw/pci/pci.h" 16 #include "hw/virtio/virtio.h" 17 #include "hw/virtio/virtio-bus.h" 18 #include "hw/virtio/virtio-pci.h" 19 #include "hw/virtio/virtio-crypto.h" 20 #include "qapi/error.h" 21 22 static Property virtio_crypto_pci_properties[] = { 23 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, 24 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), 25 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), 26 DEFINE_PROP_END_OF_LIST(), 27 }; 28 29 static void virtio_crypto_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 30 { 31 VirtIOCryptoPCI *vcrypto = VIRTIO_CRYPTO_PCI(vpci_dev); 32 DeviceState *vdev = DEVICE(&vcrypto->vdev); 33 34 if (vcrypto->vdev.conf.cryptodev == NULL) { 35 error_setg(errp, "'cryptodev' parameter expects a valid object"); 36 return; 37 } 38 39 qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); 40 virtio_pci_force_virtio_1(vpci_dev); 41 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 42 object_property_set_link(OBJECT(vcrypto), 43 OBJECT(vcrypto->vdev.conf.cryptodev), "cryptodev", 44 NULL); 45 } 46 47 static void virtio_crypto_pci_class_init(ObjectClass *klass, void *data) 48 { 49 DeviceClass *dc = DEVICE_CLASS(klass); 50 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 51 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 52 53 k->realize = virtio_crypto_pci_realize; 54 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 55 dc->props = virtio_crypto_pci_properties; 56 pcidev_k->class_id = PCI_CLASS_OTHERS; 57 } 58 59 static void virtio_crypto_initfn(Object *obj) 60 { 61 VirtIOCryptoPCI *dev = VIRTIO_CRYPTO_PCI(obj); 62 63 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 64 TYPE_VIRTIO_CRYPTO); 65 } 66 67 static const VirtioPCIDeviceTypeInfo virtio_crypto_pci_info = { 68 .generic_name = TYPE_VIRTIO_CRYPTO_PCI, 69 .instance_size = sizeof(VirtIOCryptoPCI), 70 .instance_init = virtio_crypto_initfn, 71 .class_init = virtio_crypto_pci_class_init, 72 }; 73 74 static void virtio_crypto_pci_register_types(void) 75 { 76 virtio_pci_types_register(&virtio_crypto_pci_info); 77 } 78 type_init(virtio_crypto_pci_register_types) 79