| /* |
| * Virtio crypto device |
| * |
| * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD. |
| * |
| * Authors: |
| * Gonglei <arei.gonglei@huawei.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or |
| * (at your option) any later version. See the COPYING file in the |
| * top-level directory. |
| * |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "hw/pci/pci.h" |
| #include "hw/qdev-properties.h" |
| #include "hw/virtio/virtio.h" |
| #include "hw/virtio/virtio-bus.h" |
| #include "hw/virtio/virtio-pci.h" |
| #include "hw/virtio/virtio-crypto.h" |
| #include "qapi/error.h" |
| #include "qemu/module.h" |
| |
| typedef struct VirtIOCryptoPCI VirtIOCryptoPCI; |
| |
| /* |
| * virtio-crypto-pci: This extends VirtioPCIProxy. |
| */ |
| #define TYPE_VIRTIO_CRYPTO_PCI "virtio-crypto-pci" |
| #define VIRTIO_CRYPTO_PCI(obj) \ |
| OBJECT_CHECK(VirtIOCryptoPCI, (obj), TYPE_VIRTIO_CRYPTO_PCI) |
| |
| struct VirtIOCryptoPCI { |
| VirtIOPCIProxy parent_obj; |
| VirtIOCrypto vdev; |
| }; |
| |
| static Property virtio_crypto_pci_properties[] = { |
| DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, |
| VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), |
| DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), |
| DEFINE_PROP_END_OF_LIST(), |
| }; |
| |
| static void virtio_crypto_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
| { |
| VirtIOCryptoPCI *vcrypto = VIRTIO_CRYPTO_PCI(vpci_dev); |
| DeviceState *vdev = DEVICE(&vcrypto->vdev); |
| |
| if (vcrypto->vdev.conf.cryptodev == NULL) { |
| error_setg(errp, "'cryptodev' parameter expects a valid object"); |
| return; |
| } |
| |
| qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
| virtio_pci_force_virtio_1(vpci_dev); |
| object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
| object_property_set_link(OBJECT(vcrypto), |
| OBJECT(vcrypto->vdev.conf.cryptodev), "cryptodev", |
| NULL); |
| } |
| |
| static void virtio_crypto_pci_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); |
| PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
| |
| k->realize = virtio_crypto_pci_realize; |
| set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
| device_class_set_props(dc, virtio_crypto_pci_properties); |
| pcidev_k->class_id = PCI_CLASS_OTHERS; |
| } |
| |
| static void virtio_crypto_initfn(Object *obj) |
| { |
| VirtIOCryptoPCI *dev = VIRTIO_CRYPTO_PCI(obj); |
| |
| virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
| TYPE_VIRTIO_CRYPTO); |
| } |
| |
| static const VirtioPCIDeviceTypeInfo virtio_crypto_pci_info = { |
| .generic_name = TYPE_VIRTIO_CRYPTO_PCI, |
| .instance_size = sizeof(VirtIOCryptoPCI), |
| .instance_init = virtio_crypto_initfn, |
| .class_init = virtio_crypto_pci_class_init, |
| }; |
| |
| static void virtio_crypto_pci_register_types(void) |
| { |
| virtio_pci_types_register(&virtio_crypto_pci_info); |
| } |
| type_init(virtio_crypto_pci_register_types) |