| 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 | |
| 15 | #include "qemu/osdep.h" |
| 16 | #include "hw/pci/pci.h" |
| 17 | #include "hw/core/qdev-properties.h" |
| 18 | #include "hw/virtio/virtio.h" |
| 19 | #include "hw/virtio/virtio-bus.h" |
| 20 | #include "hw/virtio/virtio-pci.h" |
| 21 | #include "hw/virtio/virtio-crypto.h" |
| 22 | #include "qapi/error.h" |
| 23 | #include "qemu/module.h" |
| 24 | #include "qom/object.h" |
| 25 | |
| 26 | typedef struct VirtIOCryptoPCI VirtIOCryptoPCI; |
| 27 | |
| 28 | /* |
| 29 | * virtio-crypto-pci: This extends VirtioPCIProxy. |
| 30 | */ |
| 31 | #define TYPE_VIRTIO_CRYPTO_PCI "virtio-crypto-pci" |
| 32 | DECLARE_INSTANCE_CHECKER(VirtIOCryptoPCI, VIRTIO_CRYPTO_PCI, |
| 33 | TYPE_VIRTIO_CRYPTO_PCI) |
| 34 | |
| 35 | struct VirtIOCryptoPCI { |
| 36 | VirtIOPCIProxy parent_obj; |
| 37 | VirtIOCrypto vdev; |
| 38 | }; |
| 39 | |
| 40 | static const Property virtio_crypto_pci_properties[] = { |
| 41 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, |
| 42 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), |
| 43 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), |
| 44 | }; |
| 45 | |
| 46 | static void virtio_crypto_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
| 47 | { |
| 48 | VirtIOCryptoPCI *vcrypto = VIRTIO_CRYPTO_PCI(vpci_dev); |
| 49 | DeviceState *vdev = DEVICE(&vcrypto->vdev); |
| 50 | |
| 51 | if (vcrypto->vdev.conf.cryptodev == NULL) { |
| 52 | error_setg(errp, "'cryptodev' parameter expects a valid object"); |
| 53 | return; |
| 54 | } |
| 55 | |
| 56 | virtio_pci_force_virtio_1(vpci_dev); |
| 57 | if (!qdev_realize(vdev, BUS(&vpci_dev->bus), errp)) { |
| 58 | return; |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | static void virtio_crypto_pci_class_init(ObjectClass *klass, const void *data) |
| 63 | { |
| 64 | DeviceClass *dc = DEVICE_CLASS(klass); |
| 65 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); |
| 66 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
| 67 | |
| 68 | k->realize = virtio_crypto_pci_realize; |
| 69 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
| 70 | device_class_set_props(dc, virtio_crypto_pci_properties); |
| 71 | pcidev_k->class_id = PCI_CLASS_OTHERS; |
| 72 | } |
| 73 | |
| 74 | static void virtio_crypto_initfn(Object *obj) |
| 75 | { |
| 76 | VirtIOCryptoPCI *dev = VIRTIO_CRYPTO_PCI(obj); |
| 77 | |
| 78 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
| 79 | TYPE_VIRTIO_CRYPTO); |
| 80 | } |
| 81 | |
| 82 | static const VirtioPCIDeviceTypeInfo virtio_crypto_pci_info = { |
| 83 | .generic_name = TYPE_VIRTIO_CRYPTO_PCI, |
| 84 | .instance_size = sizeof(VirtIOCryptoPCI), |
| 85 | .instance_init = virtio_crypto_initfn, |
| 86 | .class_init = virtio_crypto_pci_class_init, |
| 87 | }; |
| 88 | |
| 89 | static void virtio_crypto_pci_register_types(void) |
| 90 | { |
| 91 | virtio_pci_types_register(&virtio_crypto_pci_info); |
| 92 | } |
| 93 | type_init(virtio_crypto_pci_register_types) |