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b307d308 GA |
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 | */ | |
0b8fa32f | 14 | |
b307d308 GA |
15 | #include "qemu/osdep.h" |
16 | #include "hw/pci/pci.h" | |
a27bd6c7 | 17 | #include "hw/qdev-properties.h" |
b307d308 GA |
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" | |
0b8fa32f | 23 | #include "qemu/module.h" |
b307d308 | 24 | |
7c8681d0 JQ |
25 | typedef struct VirtIOCryptoPCI VirtIOCryptoPCI; |
26 | ||
27 | /* | |
28 | * virtio-crypto-pci: This extends VirtioPCIProxy. | |
29 | */ | |
30 | #define TYPE_VIRTIO_CRYPTO_PCI "virtio-crypto-pci" | |
31 | #define VIRTIO_CRYPTO_PCI(obj) \ | |
32 | OBJECT_CHECK(VirtIOCryptoPCI, (obj), TYPE_VIRTIO_CRYPTO_PCI) | |
33 | ||
34 | struct VirtIOCryptoPCI { | |
35 | VirtIOPCIProxy parent_obj; | |
36 | VirtIOCrypto vdev; | |
37 | }; | |
38 | ||
b307d308 GA |
39 | static Property virtio_crypto_pci_properties[] = { |
40 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
41 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
42 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), | |
43 | DEFINE_PROP_END_OF_LIST(), | |
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 | ||
305f5131 GA |
51 | if (vcrypto->vdev.conf.cryptodev == NULL) { |
52 | error_setg(errp, "'cryptodev' parameter expects a valid object"); | |
53 | return; | |
54 | } | |
55 | ||
b307d308 | 56 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
dd56040d | 57 | virtio_pci_force_virtio_1(vpci_dev); |
b307d308 GA |
58 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
59 | object_property_set_link(OBJECT(vcrypto), | |
60 | OBJECT(vcrypto->vdev.conf.cryptodev), "cryptodev", | |
61 | NULL); | |
62 | } | |
63 | ||
64 | static void virtio_crypto_pci_class_init(ObjectClass *klass, void *data) | |
65 | { | |
66 | DeviceClass *dc = DEVICE_CLASS(klass); | |
67 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
68 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
69 | ||
70 | k->realize = virtio_crypto_pci_realize; | |
71 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); | |
4f67d30b | 72 | device_class_set_props(dc, virtio_crypto_pci_properties); |
b307d308 GA |
73 | pcidev_k->class_id = PCI_CLASS_OTHERS; |
74 | } | |
75 | ||
76 | static void virtio_crypto_initfn(Object *obj) | |
77 | { | |
78 | VirtIOCryptoPCI *dev = VIRTIO_CRYPTO_PCI(obj); | |
79 | ||
80 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
81 | TYPE_VIRTIO_CRYPTO); | |
b307d308 GA |
82 | } |
83 | ||
a4ee4c8b EH |
84 | static const VirtioPCIDeviceTypeInfo virtio_crypto_pci_info = { |
85 | .generic_name = TYPE_VIRTIO_CRYPTO_PCI, | |
b307d308 GA |
86 | .instance_size = sizeof(VirtIOCryptoPCI), |
87 | .instance_init = virtio_crypto_initfn, | |
88 | .class_init = virtio_crypto_pci_class_init, | |
89 | }; | |
90 | ||
91 | static void virtio_crypto_pci_register_types(void) | |
92 | { | |
a4ee4c8b | 93 | virtio_pci_types_register(&virtio_crypto_pci_info); |
b307d308 GA |
94 | } |
95 | type_init(virtio_crypto_pci_register_types) |