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ea4d8ac2 GA |
1 | /* |
2 | * Virtio crypto Support | |
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 | #include "qemu/osdep.h" | |
14 | #include "qemu/iov.h" | |
15 | #include "hw/qdev.h" | |
16 | #include "qapi/error.h" | |
17 | #include "qemu/error-report.h" | |
18 | ||
19 | #include "hw/virtio/virtio.h" | |
20 | #include "hw/virtio/virtio-crypto.h" | |
21 | #include "hw/virtio/virtio-access.h" | |
22 | #include "standard-headers/linux/virtio_ids.h" | |
23 | ||
24 | #define VIRTIO_CRYPTO_VM_VERSION 1 | |
25 | ||
59c360ca GA |
26 | /* |
27 | * Transfer virtqueue index to crypto queue index. | |
28 | * The control virtqueue is after the data virtqueues | |
29 | * so the input value doesn't need to be adjusted | |
30 | */ | |
31 | static inline int virtio_crypto_vq2q(int queue_index) | |
32 | { | |
33 | return queue_index; | |
34 | } | |
35 | ||
36 | static int | |
37 | virtio_crypto_cipher_session_helper(VirtIODevice *vdev, | |
38 | CryptoDevBackendSymSessionInfo *info, | |
39 | struct virtio_crypto_cipher_session_para *cipher_para, | |
40 | struct iovec **iov, unsigned int *out_num) | |
41 | { | |
42 | VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(vdev); | |
43 | unsigned int num = *out_num; | |
44 | ||
45 | info->cipher_alg = ldl_le_p(&cipher_para->algo); | |
46 | info->key_len = ldl_le_p(&cipher_para->keylen); | |
47 | info->direction = ldl_le_p(&cipher_para->op); | |
48 | DPRINTF("cipher_alg=%" PRIu32 ", info->direction=%" PRIu32 "\n", | |
49 | info->cipher_alg, info->direction); | |
50 | ||
51 | if (info->key_len > vcrypto->conf.max_cipher_key_len) { | |
52 | error_report("virtio-crypto length of cipher key is too big: %u", | |
53 | info->key_len); | |
54 | return -VIRTIO_CRYPTO_ERR; | |
55 | } | |
56 | /* Get cipher key */ | |
57 | if (info->key_len > 0) { | |
58 | size_t s; | |
59 | DPRINTF("keylen=%" PRIu32 "\n", info->key_len); | |
60 | ||
61 | info->cipher_key = g_malloc(info->key_len); | |
62 | s = iov_to_buf(*iov, num, 0, info->cipher_key, info->key_len); | |
63 | if (unlikely(s != info->key_len)) { | |
64 | virtio_error(vdev, "virtio-crypto cipher key incorrect"); | |
65 | return -EFAULT; | |
66 | } | |
67 | iov_discard_front(iov, &num, info->key_len); | |
68 | *out_num = num; | |
69 | } | |
70 | ||
71 | return 0; | |
72 | } | |
73 | ||
74 | static int64_t | |
75 | virtio_crypto_create_sym_session(VirtIOCrypto *vcrypto, | |
76 | struct virtio_crypto_sym_create_session_req *sess_req, | |
77 | uint32_t queue_id, | |
78 | uint32_t opcode, | |
79 | struct iovec *iov, unsigned int out_num) | |
80 | { | |
81 | VirtIODevice *vdev = VIRTIO_DEVICE(vcrypto); | |
82 | CryptoDevBackendSymSessionInfo info; | |
83 | int64_t session_id; | |
84 | int queue_index; | |
85 | uint32_t op_type; | |
86 | Error *local_err = NULL; | |
87 | int ret; | |
88 | ||
89 | memset(&info, 0, sizeof(info)); | |
90 | op_type = ldl_le_p(&sess_req->op_type); | |
91 | info.op_type = op_type; | |
92 | info.op_code = opcode; | |
93 | ||
94 | if (op_type == VIRTIO_CRYPTO_SYM_OP_CIPHER) { | |
95 | ret = virtio_crypto_cipher_session_helper(vdev, &info, | |
96 | &sess_req->u.cipher.para, | |
97 | &iov, &out_num); | |
98 | if (ret < 0) { | |
99 | goto err; | |
100 | } | |
101 | } else if (op_type == VIRTIO_CRYPTO_SYM_OP_ALGORITHM_CHAINING) { | |
102 | size_t s; | |
103 | /* cipher part */ | |
104 | ret = virtio_crypto_cipher_session_helper(vdev, &info, | |
105 | &sess_req->u.chain.para.cipher_param, | |
106 | &iov, &out_num); | |
107 | if (ret < 0) { | |
108 | goto err; | |
109 | } | |
110 | /* hash part */ | |
111 | info.alg_chain_order = ldl_le_p( | |
112 | &sess_req->u.chain.para.alg_chain_order); | |
113 | info.add_len = ldl_le_p(&sess_req->u.chain.para.aad_len); | |
114 | info.hash_mode = ldl_le_p(&sess_req->u.chain.para.hash_mode); | |
115 | if (info.hash_mode == VIRTIO_CRYPTO_SYM_HASH_MODE_AUTH) { | |
116 | info.hash_alg = ldl_le_p(&sess_req->u.chain.para.u.mac_param.algo); | |
117 | info.auth_key_len = ldl_le_p( | |
118 | &sess_req->u.chain.para.u.mac_param.auth_key_len); | |
119 | info.hash_result_len = ldl_le_p( | |
120 | &sess_req->u.chain.para.u.mac_param.hash_result_len); | |
121 | if (info.auth_key_len > vcrypto->conf.max_auth_key_len) { | |
122 | error_report("virtio-crypto length of auth key is too big: %u", | |
123 | info.auth_key_len); | |
124 | ret = -VIRTIO_CRYPTO_ERR; | |
125 | goto err; | |
126 | } | |
127 | /* get auth key */ | |
128 | if (info.auth_key_len > 0) { | |
129 | DPRINTF("auth_keylen=%" PRIu32 "\n", info.auth_key_len); | |
130 | info.auth_key = g_malloc(info.auth_key_len); | |
131 | s = iov_to_buf(iov, out_num, 0, info.auth_key, | |
132 | info.auth_key_len); | |
133 | if (unlikely(s != info.auth_key_len)) { | |
134 | virtio_error(vdev, | |
135 | "virtio-crypto authenticated key incorrect"); | |
136 | ret = -EFAULT; | |
137 | goto err; | |
138 | } | |
139 | iov_discard_front(&iov, &out_num, info.auth_key_len); | |
140 | } | |
141 | } else if (info.hash_mode == VIRTIO_CRYPTO_SYM_HASH_MODE_PLAIN) { | |
142 | info.hash_alg = ldl_le_p( | |
143 | &sess_req->u.chain.para.u.hash_param.algo); | |
144 | info.hash_result_len = ldl_le_p( | |
145 | &sess_req->u.chain.para.u.hash_param.hash_result_len); | |
146 | } else { | |
147 | /* VIRTIO_CRYPTO_SYM_HASH_MODE_NESTED */ | |
148 | error_report("unsupported hash mode"); | |
149 | ret = -VIRTIO_CRYPTO_NOTSUPP; | |
150 | goto err; | |
151 | } | |
152 | } else { | |
153 | /* VIRTIO_CRYPTO_SYM_OP_NONE */ | |
154 | error_report("unsupported cipher op_type: VIRTIO_CRYPTO_SYM_OP_NONE"); | |
155 | ret = -VIRTIO_CRYPTO_NOTSUPP; | |
156 | goto err; | |
157 | } | |
158 | ||
159 | queue_index = virtio_crypto_vq2q(queue_id); | |
160 | session_id = cryptodev_backend_sym_create_session( | |
161 | vcrypto->cryptodev, | |
162 | &info, queue_index, &local_err); | |
163 | if (session_id >= 0) { | |
164 | DPRINTF("create session_id=%" PRIu64 " successfully\n", | |
165 | session_id); | |
166 | ||
167 | ret = session_id; | |
168 | } else { | |
169 | if (local_err) { | |
170 | error_report_err(local_err); | |
171 | } | |
172 | ret = -VIRTIO_CRYPTO_ERR; | |
173 | } | |
174 | ||
175 | err: | |
176 | g_free(info.cipher_key); | |
177 | g_free(info.auth_key); | |
178 | return ret; | |
179 | } | |
180 | ||
181 | static uint8_t | |
182 | virtio_crypto_handle_close_session(VirtIOCrypto *vcrypto, | |
183 | struct virtio_crypto_destroy_session_req *close_sess_req, | |
184 | uint32_t queue_id) | |
185 | { | |
186 | int ret; | |
187 | uint64_t session_id; | |
188 | uint32_t status; | |
189 | Error *local_err = NULL; | |
190 | ||
191 | session_id = ldq_le_p(&close_sess_req->session_id); | |
192 | DPRINTF("close session, id=%" PRIu64 "\n", session_id); | |
193 | ||
194 | ret = cryptodev_backend_sym_close_session( | |
195 | vcrypto->cryptodev, session_id, queue_id, &local_err); | |
196 | if (ret == 0) { | |
197 | status = VIRTIO_CRYPTO_OK; | |
198 | } else { | |
199 | if (local_err) { | |
200 | error_report_err(local_err); | |
201 | } else { | |
202 | error_report("destroy session failed"); | |
203 | } | |
204 | status = VIRTIO_CRYPTO_ERR; | |
205 | } | |
206 | ||
207 | return status; | |
208 | } | |
209 | ||
210 | static void virtio_crypto_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) | |
211 | { | |
212 | VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(vdev); | |
213 | struct virtio_crypto_op_ctrl_req ctrl; | |
214 | VirtQueueElement *elem; | |
215 | struct iovec *in_iov; | |
216 | struct iovec *out_iov; | |
217 | unsigned in_num; | |
218 | unsigned out_num; | |
219 | uint32_t queue_id; | |
220 | uint32_t opcode; | |
221 | struct virtio_crypto_session_input input; | |
222 | int64_t session_id; | |
223 | uint8_t status; | |
224 | size_t s; | |
225 | ||
226 | for (;;) { | |
227 | elem = virtqueue_pop(vq, sizeof(VirtQueueElement)); | |
228 | if (!elem) { | |
229 | break; | |
230 | } | |
231 | if (elem->out_num < 1 || elem->in_num < 1) { | |
232 | virtio_error(vdev, "virtio-crypto ctrl missing headers"); | |
233 | virtqueue_detach_element(vq, elem, 0); | |
234 | g_free(elem); | |
235 | break; | |
236 | } | |
237 | ||
238 | out_num = elem->out_num; | |
239 | out_iov = elem->out_sg; | |
240 | in_num = elem->in_num; | |
241 | in_iov = elem->in_sg; | |
242 | if (unlikely(iov_to_buf(out_iov, out_num, 0, &ctrl, sizeof(ctrl)) | |
243 | != sizeof(ctrl))) { | |
244 | virtio_error(vdev, "virtio-crypto request ctrl_hdr too short"); | |
245 | virtqueue_detach_element(vq, elem, 0); | |
246 | g_free(elem); | |
247 | break; | |
248 | } | |
249 | iov_discard_front(&out_iov, &out_num, sizeof(ctrl)); | |
250 | ||
251 | opcode = ldl_le_p(&ctrl.header.opcode); | |
252 | queue_id = ldl_le_p(&ctrl.header.queue_id); | |
253 | ||
254 | switch (opcode) { | |
255 | case VIRTIO_CRYPTO_CIPHER_CREATE_SESSION: | |
256 | memset(&input, 0, sizeof(input)); | |
257 | session_id = virtio_crypto_create_sym_session(vcrypto, | |
258 | &ctrl.u.sym_create_session, | |
259 | queue_id, opcode, | |
260 | out_iov, out_num); | |
261 | /* Serious errors, need to reset virtio crypto device */ | |
262 | if (session_id == -EFAULT) { | |
263 | virtqueue_detach_element(vq, elem, 0); | |
264 | break; | |
265 | } else if (session_id == -VIRTIO_CRYPTO_NOTSUPP) { | |
266 | stl_le_p(&input.status, VIRTIO_CRYPTO_NOTSUPP); | |
267 | } else if (session_id == -VIRTIO_CRYPTO_ERR) { | |
268 | stl_le_p(&input.status, VIRTIO_CRYPTO_ERR); | |
269 | } else { | |
270 | /* Set the session id */ | |
271 | stq_le_p(&input.session_id, session_id); | |
272 | stl_le_p(&input.status, VIRTIO_CRYPTO_OK); | |
273 | } | |
274 | ||
275 | s = iov_from_buf(in_iov, in_num, 0, &input, sizeof(input)); | |
276 | if (unlikely(s != sizeof(input))) { | |
277 | virtio_error(vdev, "virtio-crypto input incorrect"); | |
278 | virtqueue_detach_element(vq, elem, 0); | |
279 | break; | |
280 | } | |
281 | virtqueue_push(vq, elem, sizeof(input)); | |
282 | virtio_notify(vdev, vq); | |
283 | break; | |
284 | case VIRTIO_CRYPTO_CIPHER_DESTROY_SESSION: | |
285 | case VIRTIO_CRYPTO_HASH_DESTROY_SESSION: | |
286 | case VIRTIO_CRYPTO_MAC_DESTROY_SESSION: | |
287 | case VIRTIO_CRYPTO_AEAD_DESTROY_SESSION: | |
288 | status = virtio_crypto_handle_close_session(vcrypto, | |
289 | &ctrl.u.destroy_session, queue_id); | |
290 | /* The status only occupy one byte, we can directly use it */ | |
291 | s = iov_from_buf(in_iov, in_num, 0, &status, sizeof(status)); | |
292 | if (unlikely(s != sizeof(status))) { | |
293 | virtio_error(vdev, "virtio-crypto status incorrect"); | |
294 | virtqueue_detach_element(vq, elem, 0); | |
295 | break; | |
296 | } | |
297 | virtqueue_push(vq, elem, sizeof(status)); | |
298 | virtio_notify(vdev, vq); | |
299 | break; | |
300 | case VIRTIO_CRYPTO_HASH_CREATE_SESSION: | |
301 | case VIRTIO_CRYPTO_MAC_CREATE_SESSION: | |
302 | case VIRTIO_CRYPTO_AEAD_CREATE_SESSION: | |
303 | default: | |
304 | error_report("virtio-crypto unsupported ctrl opcode: %d", opcode); | |
305 | memset(&input, 0, sizeof(input)); | |
306 | stl_le_p(&input.status, VIRTIO_CRYPTO_NOTSUPP); | |
307 | s = iov_from_buf(in_iov, in_num, 0, &input, sizeof(input)); | |
308 | if (unlikely(s != sizeof(input))) { | |
309 | virtio_error(vdev, "virtio-crypto input incorrect"); | |
310 | virtqueue_detach_element(vq, elem, 0); | |
311 | break; | |
312 | } | |
313 | virtqueue_push(vq, elem, sizeof(input)); | |
314 | virtio_notify(vdev, vq); | |
315 | ||
316 | break; | |
317 | } /* end switch case */ | |
318 | ||
319 | g_free(elem); | |
320 | } /* end for loop */ | |
321 | } | |
322 | ||
ea4d8ac2 GA |
323 | static uint64_t virtio_crypto_get_features(VirtIODevice *vdev, |
324 | uint64_t features, | |
325 | Error **errp) | |
326 | { | |
327 | return features; | |
328 | } | |
329 | ||
330 | static void virtio_crypto_reset(VirtIODevice *vdev) | |
331 | { | |
332 | VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(vdev); | |
333 | /* multiqueue is disabled by default */ | |
334 | vcrypto->curr_queues = 1; | |
335 | if (!vcrypto->cryptodev->ready) { | |
336 | vcrypto->status &= ~VIRTIO_CRYPTO_S_HW_READY; | |
337 | } else { | |
338 | vcrypto->status |= VIRTIO_CRYPTO_S_HW_READY; | |
339 | } | |
340 | } | |
341 | ||
050652d9 GA |
342 | static void virtio_crypto_init_config(VirtIODevice *vdev) |
343 | { | |
344 | VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(vdev); | |
345 | ||
346 | vcrypto->conf.crypto_services = | |
347 | vcrypto->conf.cryptodev->conf.crypto_services; | |
348 | vcrypto->conf.cipher_algo_l = | |
349 | vcrypto->conf.cryptodev->conf.cipher_algo_l; | |
350 | vcrypto->conf.cipher_algo_h = | |
351 | vcrypto->conf.cryptodev->conf.cipher_algo_h; | |
352 | vcrypto->conf.hash_algo = vcrypto->conf.cryptodev->conf.hash_algo; | |
353 | vcrypto->conf.mac_algo_l = vcrypto->conf.cryptodev->conf.mac_algo_l; | |
354 | vcrypto->conf.mac_algo_h = vcrypto->conf.cryptodev->conf.mac_algo_h; | |
355 | vcrypto->conf.aead_algo = vcrypto->conf.cryptodev->conf.aead_algo; | |
356 | vcrypto->conf.max_cipher_key_len = | |
357 | vcrypto->conf.cryptodev->conf.max_cipher_key_len; | |
358 | vcrypto->conf.max_auth_key_len = | |
359 | vcrypto->conf.cryptodev->conf.max_auth_key_len; | |
360 | vcrypto->conf.max_size = vcrypto->conf.cryptodev->conf.max_size; | |
361 | } | |
362 | ||
ea4d8ac2 GA |
363 | static void virtio_crypto_device_realize(DeviceState *dev, Error **errp) |
364 | { | |
365 | VirtIODevice *vdev = VIRTIO_DEVICE(dev); | |
366 | VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(dev); | |
367 | int i; | |
368 | ||
369 | vcrypto->cryptodev = vcrypto->conf.cryptodev; | |
370 | if (vcrypto->cryptodev == NULL) { | |
371 | error_setg(errp, "'cryptodev' parameter expects a valid object"); | |
372 | return; | |
373 | } | |
374 | ||
375 | vcrypto->max_queues = MAX(vcrypto->cryptodev->conf.peers.queues, 1); | |
376 | if (vcrypto->max_queues + 1 > VIRTIO_QUEUE_MAX) { | |
377 | error_setg(errp, "Invalid number of queues (= %" PRIu32 "), " | |
378 | "must be a postive integer less than %d.", | |
379 | vcrypto->max_queues, VIRTIO_QUEUE_MAX); | |
380 | return; | |
381 | } | |
382 | ||
383 | virtio_init(vdev, "virtio-crypto", VIRTIO_ID_CRYPTO, vcrypto->config_size); | |
384 | vcrypto->curr_queues = 1; | |
385 | ||
386 | for (i = 0; i < vcrypto->max_queues; i++) { | |
387 | virtio_add_queue(vdev, 1024, NULL); | |
388 | } | |
389 | ||
59c360ca | 390 | vcrypto->ctrl_vq = virtio_add_queue(vdev, 64, virtio_crypto_handle_ctrl); |
ea4d8ac2 GA |
391 | if (!vcrypto->cryptodev->ready) { |
392 | vcrypto->status &= ~VIRTIO_CRYPTO_S_HW_READY; | |
393 | } else { | |
394 | vcrypto->status |= VIRTIO_CRYPTO_S_HW_READY; | |
395 | } | |
050652d9 GA |
396 | |
397 | virtio_crypto_init_config(vdev); | |
ea4d8ac2 GA |
398 | } |
399 | ||
400 | static void virtio_crypto_device_unrealize(DeviceState *dev, Error **errp) | |
401 | { | |
402 | VirtIODevice *vdev = VIRTIO_DEVICE(dev); | |
403 | ||
404 | virtio_cleanup(vdev); | |
405 | } | |
406 | ||
407 | static const VMStateDescription vmstate_virtio_crypto = { | |
408 | .name = "virtio-crypto", | |
409 | .minimum_version_id = VIRTIO_CRYPTO_VM_VERSION, | |
410 | .version_id = VIRTIO_CRYPTO_VM_VERSION, | |
411 | .fields = (VMStateField[]) { | |
412 | VMSTATE_VIRTIO_DEVICE, | |
413 | VMSTATE_END_OF_LIST() | |
414 | }, | |
415 | }; | |
416 | ||
417 | static Property virtio_crypto_properties[] = { | |
418 | DEFINE_PROP_END_OF_LIST(), | |
419 | }; | |
420 | ||
421 | static void virtio_crypto_get_config(VirtIODevice *vdev, uint8_t *config) | |
422 | { | |
050652d9 GA |
423 | VirtIOCrypto *c = VIRTIO_CRYPTO(vdev); |
424 | struct virtio_crypto_config crypto_cfg; | |
425 | ||
426 | /* | |
427 | * Virtio-crypto device conforms to VIRTIO 1.0 which is always LE, | |
428 | * so we can use LE accessors directly. | |
429 | */ | |
430 | stl_le_p(&crypto_cfg.status, c->status); | |
431 | stl_le_p(&crypto_cfg.max_dataqueues, c->max_queues); | |
432 | stl_le_p(&crypto_cfg.crypto_services, c->conf.crypto_services); | |
433 | stl_le_p(&crypto_cfg.cipher_algo_l, c->conf.cipher_algo_l); | |
434 | stl_le_p(&crypto_cfg.cipher_algo_h, c->conf.cipher_algo_h); | |
435 | stl_le_p(&crypto_cfg.hash_algo, c->conf.hash_algo); | |
436 | stl_le_p(&crypto_cfg.mac_algo_l, c->conf.mac_algo_l); | |
437 | stl_le_p(&crypto_cfg.mac_algo_h, c->conf.mac_algo_h); | |
438 | stl_le_p(&crypto_cfg.aead_algo, c->conf.aead_algo); | |
439 | stl_le_p(&crypto_cfg.max_cipher_key_len, c->conf.max_cipher_key_len); | |
440 | stl_le_p(&crypto_cfg.max_auth_key_len, c->conf.max_auth_key_len); | |
441 | stq_le_p(&crypto_cfg.max_size, c->conf.max_size); | |
442 | ||
443 | memcpy(config, &crypto_cfg, c->config_size); | |
ea4d8ac2 GA |
444 | } |
445 | ||
446 | static void virtio_crypto_class_init(ObjectClass *klass, void *data) | |
447 | { | |
448 | DeviceClass *dc = DEVICE_CLASS(klass); | |
449 | VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass); | |
450 | ||
451 | dc->props = virtio_crypto_properties; | |
452 | dc->vmsd = &vmstate_virtio_crypto; | |
453 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); | |
454 | vdc->realize = virtio_crypto_device_realize; | |
455 | vdc->unrealize = virtio_crypto_device_unrealize; | |
456 | vdc->get_config = virtio_crypto_get_config; | |
457 | vdc->get_features = virtio_crypto_get_features; | |
458 | vdc->reset = virtio_crypto_reset; | |
459 | } | |
460 | ||
461 | static void virtio_crypto_instance_init(Object *obj) | |
462 | { | |
463 | VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(obj); | |
464 | ||
465 | /* | |
466 | * The default config_size is sizeof(struct virtio_crypto_config). | |
467 | * Can be overriden with virtio_crypto_set_config_size. | |
468 | */ | |
469 | vcrypto->config_size = sizeof(struct virtio_crypto_config); | |
470 | ||
471 | object_property_add_link(obj, "cryptodev", | |
472 | TYPE_CRYPTODEV_BACKEND, | |
473 | (Object **)&vcrypto->conf.cryptodev, | |
474 | qdev_prop_allow_set_link_before_realize, | |
475 | OBJ_PROP_LINK_UNREF_ON_RELEASE, NULL); | |
476 | } | |
477 | ||
478 | static const TypeInfo virtio_crypto_info = { | |
479 | .name = TYPE_VIRTIO_CRYPTO, | |
480 | .parent = TYPE_VIRTIO_DEVICE, | |
481 | .instance_size = sizeof(VirtIOCrypto), | |
482 | .instance_init = virtio_crypto_instance_init, | |
483 | .class_init = virtio_crypto_class_init, | |
484 | }; | |
485 | ||
486 | static void virtio_register_types(void) | |
487 | { | |
488 | type_register_static(&virtio_crypto_info); | |
489 | } | |
490 | ||
491 | type_init(virtio_register_types) |