xref: /openbmc/linux/drivers/vdpa/vdpa_sim/vdpa_sim.c (revision 31eeb6b0) 
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * VDPA device simulator core.
4  *
5  * Copyright (c) 2020, Red Hat Inc. All rights reserved.
6  *     Author: Jason Wang <jasowang@redhat.com>
7  *
8  */
9 
10 #include <linux/init.h>
11 #include <linux/module.h>
12 #include <linux/device.h>
13 #include <linux/kernel.h>
14 #include <linux/slab.h>
15 #include <linux/sched.h>
16 #include <linux/dma-map-ops.h>
17 #include <linux/vringh.h>
18 #include <linux/vdpa.h>
19 #include <linux/vhost_iotlb.h>
20 #include <linux/iova.h>
21 
22 #include "vdpa_sim.h"
23 
24 #define DRV_VERSION  "0.1"
25 #define DRV_AUTHOR   "Jason Wang <jasowang@redhat.com>"
26 #define DRV_DESC     "vDPA Device Simulator core"
27 #define DRV_LICENSE  "GPL v2"
28 
29 static int batch_mapping = 1;
30 module_param(batch_mapping, int, 0444);
31 MODULE_PARM_DESC(batch_mapping, "Batched mapping 1 -Enable; 0 - Disable");
32 
33 static int max_iotlb_entries = 2048;
34 module_param(max_iotlb_entries, int, 0444);
35 MODULE_PARM_DESC(max_iotlb_entries,
36 		 "Maximum number of iotlb entries. 0 means unlimited. (default: 2048)");
37 
38 #define VDPASIM_QUEUE_ALIGN PAGE_SIZE
39 #define VDPASIM_QUEUE_MAX 256
40 #define VDPASIM_VENDOR_ID 0
41 
42 static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
43 {
44 	return container_of(vdpa, struct vdpasim, vdpa);
45 }
46 
47 static struct vdpasim *dev_to_sim(struct device *dev)
48 {
49 	struct vdpa_device *vdpa = dev_to_vdpa(dev);
50 
51 	return vdpa_to_sim(vdpa);
52 }
53 
54 static void vdpasim_vq_notify(struct vringh *vring)
55 {
56 	struct vdpasim_virtqueue *vq =
57 		container_of(vring, struct vdpasim_virtqueue, vring);
58 
59 	if (!vq->cb)
60 		return;
61 
62 	vq->cb(vq->private);
63 }
64 
65 static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
66 {
67 	struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
68 
69 	vringh_init_iotlb(&vq->vring, vdpasim->dev_attr.supported_features,
70 			  VDPASIM_QUEUE_MAX, false,
71 			  (struct vring_desc *)(uintptr_t)vq->desc_addr,
72 			  (struct vring_avail *)
73 			  (uintptr_t)vq->driver_addr,
74 			  (struct vring_used *)
75 			  (uintptr_t)vq->device_addr);
76 
77 	vq->vring.notify = vdpasim_vq_notify;
78 }
79 
80 static void vdpasim_vq_reset(struct vdpasim *vdpasim,
81 			     struct vdpasim_virtqueue *vq)
82 {
83 	vq->ready = false;
84 	vq->desc_addr = 0;
85 	vq->driver_addr = 0;
86 	vq->device_addr = 0;
87 	vq->cb = NULL;
88 	vq->private = NULL;
89 	vringh_init_iotlb(&vq->vring, vdpasim->dev_attr.supported_features,
90 			  VDPASIM_QUEUE_MAX, false, NULL, NULL, NULL);
91 
92 	vq->vring.notify = NULL;
93 }
94 
95 static void vdpasim_do_reset(struct vdpasim *vdpasim)
96 {
97 	int i;
98 
99 	for (i = 0; i < vdpasim->dev_attr.nvqs; i++)
100 		vdpasim_vq_reset(vdpasim, &vdpasim->vqs[i]);
101 
102 	spin_lock(&vdpasim->iommu_lock);
103 	vhost_iotlb_reset(vdpasim->iommu);
104 	spin_unlock(&vdpasim->iommu_lock);
105 
106 	vdpasim->features = 0;
107 	vdpasim->status = 0;
108 	++vdpasim->generation;
109 }
110 
111 static int dir_to_perm(enum dma_data_direction dir)
112 {
113 	int perm = -EFAULT;
114 
115 	switch (dir) {
116 	case DMA_FROM_DEVICE:
117 		perm = VHOST_MAP_WO;
118 		break;
119 	case DMA_TO_DEVICE:
120 		perm = VHOST_MAP_RO;
121 		break;
122 	case DMA_BIDIRECTIONAL:
123 		perm = VHOST_MAP_RW;
124 		break;
125 	default:
126 		break;
127 	}
128 
129 	return perm;
130 }
131 
132 static dma_addr_t vdpasim_map_range(struct vdpasim *vdpasim, phys_addr_t paddr,
133 				    size_t size, unsigned int perm)
134 {
135 	struct iova *iova;
136 	dma_addr_t dma_addr;
137 	int ret;
138 
139 	/* We set the limit_pfn to the maximum (ULONG_MAX - 1) */
140 	iova = alloc_iova(&vdpasim->iova, size >> iova_shift(&vdpasim->iova),
141 			  ULONG_MAX - 1, true);
142 	if (!iova)
143 		return DMA_MAPPING_ERROR;
144 
145 	dma_addr = iova_dma_addr(&vdpasim->iova, iova);
146 
147 	spin_lock(&vdpasim->iommu_lock);
148 	ret = vhost_iotlb_add_range(vdpasim->iommu, (u64)dma_addr,
149 				    (u64)dma_addr + size - 1, (u64)paddr, perm);
150 	spin_unlock(&vdpasim->iommu_lock);
151 
152 	if (ret) {
153 		__free_iova(&vdpasim->iova, iova);
154 		return DMA_MAPPING_ERROR;
155 	}
156 
157 	return dma_addr;
158 }
159 
160 static void vdpasim_unmap_range(struct vdpasim *vdpasim, dma_addr_t dma_addr,
161 				size_t size)
162 {
163 	spin_lock(&vdpasim->iommu_lock);
164 	vhost_iotlb_del_range(vdpasim->iommu, (u64)dma_addr,
165 			      (u64)dma_addr + size - 1);
166 	spin_unlock(&vdpasim->iommu_lock);
167 
168 	free_iova(&vdpasim->iova, iova_pfn(&vdpasim->iova, dma_addr));
169 }
170 
171 static dma_addr_t vdpasim_map_page(struct device *dev, struct page *page,
172 				   unsigned long offset, size_t size,
173 				   enum dma_data_direction dir,
174 				   unsigned long attrs)
175 {
176 	struct vdpasim *vdpasim = dev_to_sim(dev);
177 	phys_addr_t paddr = page_to_phys(page) + offset;
178 	int perm = dir_to_perm(dir);
179 
180 	if (perm < 0)
181 		return DMA_MAPPING_ERROR;
182 
183 	return vdpasim_map_range(vdpasim, paddr, size, perm);
184 }
185 
186 static void vdpasim_unmap_page(struct device *dev, dma_addr_t dma_addr,
187 			       size_t size, enum dma_data_direction dir,
188 			       unsigned long attrs)
189 {
190 	struct vdpasim *vdpasim = dev_to_sim(dev);
191 
192 	vdpasim_unmap_range(vdpasim, dma_addr, size);
193 }
194 
195 static void *vdpasim_alloc_coherent(struct device *dev, size_t size,
196 				    dma_addr_t *dma_addr, gfp_t flag,
197 				    unsigned long attrs)
198 {
199 	struct vdpasim *vdpasim = dev_to_sim(dev);
200 	phys_addr_t paddr;
201 	void *addr;
202 
203 	addr = kmalloc(size, flag);
204 	if (!addr) {
205 		*dma_addr = DMA_MAPPING_ERROR;
206 		return NULL;
207 	}
208 
209 	paddr = virt_to_phys(addr);
210 
211 	*dma_addr = vdpasim_map_range(vdpasim, paddr, size, VHOST_MAP_RW);
212 	if (*dma_addr == DMA_MAPPING_ERROR) {
213 		kfree(addr);
214 		return NULL;
215 	}
216 
217 	return addr;
218 }
219 
220 static void vdpasim_free_coherent(struct device *dev, size_t size,
221 				  void *vaddr, dma_addr_t dma_addr,
222 				  unsigned long attrs)
223 {
224 	struct vdpasim *vdpasim = dev_to_sim(dev);
225 
226 	vdpasim_unmap_range(vdpasim, dma_addr, size);
227 
228 	kfree(vaddr);
229 }
230 
231 static const struct dma_map_ops vdpasim_dma_ops = {
232 	.map_page = vdpasim_map_page,
233 	.unmap_page = vdpasim_unmap_page,
234 	.alloc = vdpasim_alloc_coherent,
235 	.free = vdpasim_free_coherent,
236 };
237 
238 static const struct vdpa_config_ops vdpasim_config_ops;
239 static const struct vdpa_config_ops vdpasim_batch_config_ops;
240 
241 struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr)
242 {
243 	const struct vdpa_config_ops *ops;
244 	struct vdpasim *vdpasim;
245 	struct device *dev;
246 	int i, ret = -ENOMEM;
247 
248 	if (batch_mapping)
249 		ops = &vdpasim_batch_config_ops;
250 	else
251 		ops = &vdpasim_config_ops;
252 
253 	vdpasim = vdpa_alloc_device(struct vdpasim, vdpa, NULL, ops,
254 				    dev_attr->name, false);
255 	if (IS_ERR(vdpasim)) {
256 		ret = PTR_ERR(vdpasim);
257 		goto err_alloc;
258 	}
259 
260 	vdpasim->dev_attr = *dev_attr;
261 	INIT_WORK(&vdpasim->work, dev_attr->work_fn);
262 	spin_lock_init(&vdpasim->lock);
263 	spin_lock_init(&vdpasim->iommu_lock);
264 
265 	dev = &vdpasim->vdpa.dev;
266 	dev->dma_mask = &dev->coherent_dma_mask;
267 	if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)))
268 		goto err_iommu;
269 	set_dma_ops(dev, &vdpasim_dma_ops);
270 	vdpasim->vdpa.mdev = dev_attr->mgmt_dev;
271 
272 	vdpasim->config = kzalloc(dev_attr->config_size, GFP_KERNEL);
273 	if (!vdpasim->config)
274 		goto err_iommu;
275 
276 	vdpasim->vqs = kcalloc(dev_attr->nvqs, sizeof(struct vdpasim_virtqueue),
277 			       GFP_KERNEL);
278 	if (!vdpasim->vqs)
279 		goto err_iommu;
280 
281 	vdpasim->iommu = vhost_iotlb_alloc(max_iotlb_entries, 0);
282 	if (!vdpasim->iommu)
283 		goto err_iommu;
284 
285 	vdpasim->buffer = kvmalloc(dev_attr->buffer_size, GFP_KERNEL);
286 	if (!vdpasim->buffer)
287 		goto err_iommu;
288 
289 	for (i = 0; i < dev_attr->nvqs; i++)
290 		vringh_set_iotlb(&vdpasim->vqs[i].vring, vdpasim->iommu,
291 				 &vdpasim->iommu_lock);
292 
293 	ret = iova_cache_get();
294 	if (ret)
295 		goto err_iommu;
296 
297 	/* For simplicity we use an IOVA allocator with byte granularity */
298 	init_iova_domain(&vdpasim->iova, 1, 0);
299 
300 	vdpasim->vdpa.dma_dev = dev;
301 
302 	return vdpasim;
303 
304 err_iommu:
305 	put_device(dev);
306 err_alloc:
307 	return ERR_PTR(ret);
308 }
309 EXPORT_SYMBOL_GPL(vdpasim_create);
310 
311 static int vdpasim_set_vq_address(struct vdpa_device *vdpa, u16 idx,
312 				  u64 desc_area, u64 driver_area,
313 				  u64 device_area)
314 {
315 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
316 	struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
317 
318 	vq->desc_addr = desc_area;
319 	vq->driver_addr = driver_area;
320 	vq->device_addr = device_area;
321 
322 	return 0;
323 }
324 
325 static void vdpasim_set_vq_num(struct vdpa_device *vdpa, u16 idx, u32 num)
326 {
327 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
328 	struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
329 
330 	vq->num = num;
331 }
332 
333 static void vdpasim_kick_vq(struct vdpa_device *vdpa, u16 idx)
334 {
335 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
336 	struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
337 
338 	if (vq->ready)
339 		schedule_work(&vdpasim->work);
340 }
341 
342 static void vdpasim_set_vq_cb(struct vdpa_device *vdpa, u16 idx,
343 			      struct vdpa_callback *cb)
344 {
345 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
346 	struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
347 
348 	vq->cb = cb->callback;
349 	vq->private = cb->private;
350 }
351 
352 static void vdpasim_set_vq_ready(struct vdpa_device *vdpa, u16 idx, bool ready)
353 {
354 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
355 	struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
356 
357 	spin_lock(&vdpasim->lock);
358 	vq->ready = ready;
359 	if (vq->ready)
360 		vdpasim_queue_ready(vdpasim, idx);
361 	spin_unlock(&vdpasim->lock);
362 }
363 
364 static bool vdpasim_get_vq_ready(struct vdpa_device *vdpa, u16 idx)
365 {
366 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
367 	struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
368 
369 	return vq->ready;
370 }
371 
372 static int vdpasim_set_vq_state(struct vdpa_device *vdpa, u16 idx,
373 				const struct vdpa_vq_state *state)
374 {
375 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
376 	struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
377 	struct vringh *vrh = &vq->vring;
378 
379 	spin_lock(&vdpasim->lock);
380 	vrh->last_avail_idx = state->split.avail_index;
381 	spin_unlock(&vdpasim->lock);
382 
383 	return 0;
384 }
385 
386 static int vdpasim_get_vq_state(struct vdpa_device *vdpa, u16 idx,
387 				struct vdpa_vq_state *state)
388 {
389 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
390 	struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
391 	struct vringh *vrh = &vq->vring;
392 
393 	state->split.avail_index = vrh->last_avail_idx;
394 	return 0;
395 }
396 
397 static u32 vdpasim_get_vq_align(struct vdpa_device *vdpa)
398 {
399 	return VDPASIM_QUEUE_ALIGN;
400 }
401 
402 static u64 vdpasim_get_device_features(struct vdpa_device *vdpa)
403 {
404 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
405 
406 	return vdpasim->dev_attr.supported_features;
407 }
408 
409 static int vdpasim_set_driver_features(struct vdpa_device *vdpa, u64 features)
410 {
411 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
412 
413 	/* DMA mapping must be done by driver */
414 	if (!(features & (1ULL << VIRTIO_F_ACCESS_PLATFORM)))
415 		return -EINVAL;
416 
417 	vdpasim->features = features & vdpasim->dev_attr.supported_features;
418 
419 	return 0;
420 }
421 
422 static u64 vdpasim_get_driver_features(struct vdpa_device *vdpa)
423 {
424 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
425 
426 	return vdpasim->features;
427 }
428 
429 static void vdpasim_set_config_cb(struct vdpa_device *vdpa,
430 				  struct vdpa_callback *cb)
431 {
432 	/* We don't support config interrupt */
433 }
434 
435 static u16 vdpasim_get_vq_num_max(struct vdpa_device *vdpa)
436 {
437 	return VDPASIM_QUEUE_MAX;
438 }
439 
440 static u32 vdpasim_get_device_id(struct vdpa_device *vdpa)
441 {
442 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
443 
444 	return vdpasim->dev_attr.id;
445 }
446 
447 static u32 vdpasim_get_vendor_id(struct vdpa_device *vdpa)
448 {
449 	return VDPASIM_VENDOR_ID;
450 }
451 
452 static u8 vdpasim_get_status(struct vdpa_device *vdpa)
453 {
454 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
455 	u8 status;
456 
457 	spin_lock(&vdpasim->lock);
458 	status = vdpasim->status;
459 	spin_unlock(&vdpasim->lock);
460 
461 	return status;
462 }
463 
464 static void vdpasim_set_status(struct vdpa_device *vdpa, u8 status)
465 {
466 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
467 
468 	spin_lock(&vdpasim->lock);
469 	vdpasim->status = status;
470 	spin_unlock(&vdpasim->lock);
471 }
472 
473 static int vdpasim_reset(struct vdpa_device *vdpa)
474 {
475 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
476 
477 	spin_lock(&vdpasim->lock);
478 	vdpasim->status = 0;
479 	vdpasim_do_reset(vdpasim);
480 	spin_unlock(&vdpasim->lock);
481 
482 	return 0;
483 }
484 
485 static size_t vdpasim_get_config_size(struct vdpa_device *vdpa)
486 {
487 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
488 
489 	return vdpasim->dev_attr.config_size;
490 }
491 
492 static void vdpasim_get_config(struct vdpa_device *vdpa, unsigned int offset,
493 			     void *buf, unsigned int len)
494 {
495 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
496 
497 	if (offset + len > vdpasim->dev_attr.config_size)
498 		return;
499 
500 	if (vdpasim->dev_attr.get_config)
501 		vdpasim->dev_attr.get_config(vdpasim, vdpasim->config);
502 
503 	memcpy(buf, vdpasim->config + offset, len);
504 }
505 
506 static void vdpasim_set_config(struct vdpa_device *vdpa, unsigned int offset,
507 			     const void *buf, unsigned int len)
508 {
509 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
510 
511 	if (offset + len > vdpasim->dev_attr.config_size)
512 		return;
513 
514 	memcpy(vdpasim->config + offset, buf, len);
515 
516 	if (vdpasim->dev_attr.set_config)
517 		vdpasim->dev_attr.set_config(vdpasim, vdpasim->config);
518 }
519 
520 static u32 vdpasim_get_generation(struct vdpa_device *vdpa)
521 {
522 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
523 
524 	return vdpasim->generation;
525 }
526 
527 static struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
528 {
529 	struct vdpa_iova_range range = {
530 		.first = 0ULL,
531 		.last = ULLONG_MAX,
532 	};
533 
534 	return range;
535 }
536 
537 static int vdpasim_set_map(struct vdpa_device *vdpa,
538 			   struct vhost_iotlb *iotlb)
539 {
540 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
541 	struct vhost_iotlb_map *map;
542 	u64 start = 0ULL, last = 0ULL - 1;
543 	int ret;
544 
545 	spin_lock(&vdpasim->iommu_lock);
546 	vhost_iotlb_reset(vdpasim->iommu);
547 
548 	for (map = vhost_iotlb_itree_first(iotlb, start, last); map;
549 	     map = vhost_iotlb_itree_next(map, start, last)) {
550 		ret = vhost_iotlb_add_range(vdpasim->iommu, map->start,
551 					    map->last, map->addr, map->perm);
552 		if (ret)
553 			goto err;
554 	}
555 	spin_unlock(&vdpasim->iommu_lock);
556 	return 0;
557 
558 err:
559 	vhost_iotlb_reset(vdpasim->iommu);
560 	spin_unlock(&vdpasim->iommu_lock);
561 	return ret;
562 }
563 
564 static int vdpasim_dma_map(struct vdpa_device *vdpa, u64 iova, u64 size,
565 			   u64 pa, u32 perm, void *opaque)
566 {
567 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
568 	int ret;
569 
570 	spin_lock(&vdpasim->iommu_lock);
571 	ret = vhost_iotlb_add_range_ctx(vdpasim->iommu, iova, iova + size - 1,
572 					pa, perm, opaque);
573 	spin_unlock(&vdpasim->iommu_lock);
574 
575 	return ret;
576 }
577 
578 static int vdpasim_dma_unmap(struct vdpa_device *vdpa, u64 iova, u64 size)
579 {
580 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
581 
582 	spin_lock(&vdpasim->iommu_lock);
583 	vhost_iotlb_del_range(vdpasim->iommu, iova, iova + size - 1);
584 	spin_unlock(&vdpasim->iommu_lock);
585 
586 	return 0;
587 }
588 
589 static void vdpasim_free(struct vdpa_device *vdpa)
590 {
591 	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
592 	int i;
593 
594 	cancel_work_sync(&vdpasim->work);
595 
596 	for (i = 0; i < vdpasim->dev_attr.nvqs; i++) {
597 		vringh_kiov_cleanup(&vdpasim->vqs[i].out_iov);
598 		vringh_kiov_cleanup(&vdpasim->vqs[i].in_iov);
599 	}
600 
601 	if (vdpa_get_dma_dev(vdpa)) {
602 		put_iova_domain(&vdpasim->iova);
603 		iova_cache_put();
604 	}
605 
606 	kvfree(vdpasim->buffer);
607 	if (vdpasim->iommu)
608 		vhost_iotlb_free(vdpasim->iommu);
609 	kfree(vdpasim->vqs);
610 	kfree(vdpasim->config);
611 }
612 
613 static const struct vdpa_config_ops vdpasim_config_ops = {
614 	.set_vq_address         = vdpasim_set_vq_address,
615 	.set_vq_num             = vdpasim_set_vq_num,
616 	.kick_vq                = vdpasim_kick_vq,
617 	.set_vq_cb              = vdpasim_set_vq_cb,
618 	.set_vq_ready           = vdpasim_set_vq_ready,
619 	.get_vq_ready           = vdpasim_get_vq_ready,
620 	.set_vq_state           = vdpasim_set_vq_state,
621 	.get_vq_state           = vdpasim_get_vq_state,
622 	.get_vq_align           = vdpasim_get_vq_align,
623 	.get_device_features    = vdpasim_get_device_features,
624 	.set_driver_features    = vdpasim_set_driver_features,
625 	.get_driver_features    = vdpasim_get_driver_features,
626 	.set_config_cb          = vdpasim_set_config_cb,
627 	.get_vq_num_max         = vdpasim_get_vq_num_max,
628 	.get_device_id          = vdpasim_get_device_id,
629 	.get_vendor_id          = vdpasim_get_vendor_id,
630 	.get_status             = vdpasim_get_status,
631 	.set_status             = vdpasim_set_status,
632 	.reset			= vdpasim_reset,
633 	.get_config_size        = vdpasim_get_config_size,
634 	.get_config             = vdpasim_get_config,
635 	.set_config             = vdpasim_set_config,
636 	.get_generation         = vdpasim_get_generation,
637 	.get_iova_range         = vdpasim_get_iova_range,
638 	.dma_map                = vdpasim_dma_map,
639 	.dma_unmap              = vdpasim_dma_unmap,
640 	.free                   = vdpasim_free,
641 };
642 
643 static const struct vdpa_config_ops vdpasim_batch_config_ops = {
644 	.set_vq_address         = vdpasim_set_vq_address,
645 	.set_vq_num             = vdpasim_set_vq_num,
646 	.kick_vq                = vdpasim_kick_vq,
647 	.set_vq_cb              = vdpasim_set_vq_cb,
648 	.set_vq_ready           = vdpasim_set_vq_ready,
649 	.get_vq_ready           = vdpasim_get_vq_ready,
650 	.set_vq_state           = vdpasim_set_vq_state,
651 	.get_vq_state           = vdpasim_get_vq_state,
652 	.get_vq_align           = vdpasim_get_vq_align,
653 	.get_device_features    = vdpasim_get_device_features,
654 	.set_driver_features    = vdpasim_set_driver_features,
655 	.get_driver_features    = vdpasim_get_driver_features,
656 	.set_config_cb          = vdpasim_set_config_cb,
657 	.get_vq_num_max         = vdpasim_get_vq_num_max,
658 	.get_device_id          = vdpasim_get_device_id,
659 	.get_vendor_id          = vdpasim_get_vendor_id,
660 	.get_status             = vdpasim_get_status,
661 	.set_status             = vdpasim_set_status,
662 	.reset			= vdpasim_reset,
663 	.get_config_size        = vdpasim_get_config_size,
664 	.get_config             = vdpasim_get_config,
665 	.set_config             = vdpasim_set_config,
666 	.get_generation         = vdpasim_get_generation,
667 	.get_iova_range         = vdpasim_get_iova_range,
668 	.set_map                = vdpasim_set_map,
669 	.free                   = vdpasim_free,
670 };
671 
672 MODULE_VERSION(DRV_VERSION);
673 MODULE_LICENSE(DRV_LICENSE);
674 MODULE_AUTHOR(DRV_AUTHOR);
675 MODULE_DESCRIPTION(DRV_DESC);
676