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Commit | Line | Data |
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a5cf2bb4 CH |
1 | /* |
2 | * virtio ccw target implementation | |
3 | * | |
de6a9218 | 4 | * Copyright 2012,2015 IBM Corp. |
a5cf2bb4 | 5 | * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> |
de6a9218 | 6 | * Pierre Morel <pmorel@linux.vnet.ibm.com> |
a5cf2bb4 CH |
7 | * |
8 | * This work is licensed under the terms of the GNU GPL, version 2 or (at | |
9 | * your option) any later version. See the COPYING file in the top-level | |
10 | * directory. | |
11 | */ | |
12 | ||
9615495a | 13 | #include "qemu/osdep.h" |
da34e65c | 14 | #include "qapi/error.h" |
a5cf2bb4 | 15 | #include "hw/hw.h" |
4be74634 | 16 | #include "sysemu/block-backend.h" |
a5cf2bb4 CH |
17 | #include "sysemu/blockdev.h" |
18 | #include "sysemu/sysemu.h" | |
bd3f16ac | 19 | #include "sysemu/kvm.h" |
a5cf2bb4 | 20 | #include "net/net.h" |
0d09e41a PB |
21 | #include "hw/virtio/virtio.h" |
22 | #include "hw/virtio/virtio-serial.h" | |
23 | #include "hw/virtio/virtio-net.h" | |
a5cf2bb4 CH |
24 | #include "hw/sysbus.h" |
25 | #include "qemu/bitops.h" | |
d49b6836 | 26 | #include "qemu/error-report.h" |
c42767f2 | 27 | #include "hw/virtio/virtio-access.h" |
0d09e41a | 28 | #include "hw/virtio/virtio-bus.h" |
d426d9fb CH |
29 | #include "hw/s390x/adapter.h" |
30 | #include "hw/s390x/s390_flic.h" | |
a5cf2bb4 | 31 | |
bd3f16ac PB |
32 | #include "hw/s390x/ioinst.h" |
33 | #include "hw/s390x/css.h" | |
a5cf2bb4 CH |
34 | #include "virtio-ccw.h" |
35 | #include "trace.h" | |
dd70bd0d | 36 | #include "hw/s390x/css-bridge.h" |
a5cf2bb4 | 37 | |
1bf4d7aa AF |
38 | static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, |
39 | VirtioCcwDevice *dev); | |
d51fcfac | 40 | |
a5cf2bb4 CH |
41 | VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch) |
42 | { | |
43 | VirtIODevice *vdev = NULL; | |
f24a6840 | 44 | VirtioCcwDevice *dev = sch->driver_data; |
a5cf2bb4 | 45 | |
f24a6840 PB |
46 | if (dev) { |
47 | vdev = virtio_bus_get_device(&dev->bus); | |
a5cf2bb4 CH |
48 | } |
49 | return vdev; | |
50 | } | |
51 | ||
7c55f68a | 52 | static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev) |
b4436a0b | 53 | { |
7c55f68a CH |
54 | virtio_bus_start_ioeventfd(&dev->bus); |
55 | } | |
b4436a0b | 56 | |
7c55f68a CH |
57 | static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev) |
58 | { | |
59 | virtio_bus_stop_ioeventfd(&dev->bus); | |
b4436a0b CH |
60 | } |
61 | ||
8e93cef1 | 62 | static bool virtio_ccw_ioeventfd_enabled(DeviceState *d) |
b4436a0b | 63 | { |
7c55f68a | 64 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); |
b4436a0b | 65 | |
8e93cef1 | 66 | return (dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD) != 0; |
7c55f68a CH |
67 | } |
68 | ||
69 | static int virtio_ccw_ioeventfd_assign(DeviceState *d, EventNotifier *notifier, | |
70 | int n, bool assign) | |
71 | { | |
72 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
b804e8a6 JL |
73 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
74 | SubchDev *sch = ccw_dev->sch; | |
7c55f68a CH |
75 | uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid; |
76 | ||
77 | return s390_assign_subch_ioeventfd(notifier, sch_id, n, assign); | |
b4436a0b CH |
78 | } |
79 | ||
a5cf2bb4 | 80 | /* Communication blocks used by several channel commands. */ |
0db87e0d | 81 | typedef struct VqInfoBlockLegacy { |
a5cf2bb4 CH |
82 | uint64_t queue; |
83 | uint32_t align; | |
84 | uint16_t index; | |
85 | uint16_t num; | |
0db87e0d CH |
86 | } QEMU_PACKED VqInfoBlockLegacy; |
87 | ||
88 | typedef struct VqInfoBlock { | |
89 | uint64_t desc; | |
90 | uint32_t res0; | |
91 | uint16_t index; | |
92 | uint16_t num; | |
93 | uint64_t avail; | |
94 | uint64_t used; | |
a5cf2bb4 CH |
95 | } QEMU_PACKED VqInfoBlock; |
96 | ||
97 | typedef struct VqConfigBlock { | |
98 | uint16_t index; | |
99 | uint16_t num_max; | |
100 | } QEMU_PACKED VqConfigBlock; | |
101 | ||
102 | typedef struct VirtioFeatDesc { | |
103 | uint32_t features; | |
104 | uint8_t index; | |
105 | } QEMU_PACKED VirtioFeatDesc; | |
106 | ||
7e749462 CH |
107 | typedef struct VirtioThinintInfo { |
108 | hwaddr summary_indicator; | |
109 | hwaddr device_indicator; | |
110 | uint64_t ind_bit; | |
111 | uint8_t isc; | |
112 | } QEMU_PACKED VirtioThinintInfo; | |
113 | ||
c42767f2 TH |
114 | typedef struct VirtioRevInfo { |
115 | uint16_t revision; | |
116 | uint16_t length; | |
117 | uint8_t data[0]; | |
118 | } QEMU_PACKED VirtioRevInfo; | |
119 | ||
a5cf2bb4 | 120 | /* Specify where the virtqueues for the subchannel are in guest memory. */ |
0db87e0d CH |
121 | static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info, |
122 | VqInfoBlockLegacy *linfo) | |
a5cf2bb4 | 123 | { |
f24a6840 | 124 | VirtIODevice *vdev = virtio_ccw_get_vdev(sch); |
0db87e0d CH |
125 | uint16_t index = info ? info->index : linfo->index; |
126 | uint16_t num = info ? info->num : linfo->num; | |
127 | uint64_t desc = info ? info->desc : linfo->queue; | |
a5cf2bb4 | 128 | |
8dfbaa6a | 129 | if (index >= VIRTIO_CCW_QUEUE_MAX) { |
a5cf2bb4 CH |
130 | return -EINVAL; |
131 | } | |
132 | ||
133 | /* Current code in virtio.c relies on 4K alignment. */ | |
0db87e0d | 134 | if (linfo && desc && (linfo->align != 4096)) { |
a5cf2bb4 CH |
135 | return -EINVAL; |
136 | } | |
137 | ||
f24a6840 | 138 | if (!vdev) { |
a5cf2bb4 CH |
139 | return -EINVAL; |
140 | } | |
141 | ||
0db87e0d CH |
142 | if (info) { |
143 | virtio_queue_set_rings(vdev, index, desc, info->avail, info->used); | |
144 | } else { | |
145 | virtio_queue_set_addr(vdev, index, desc); | |
146 | } | |
147 | if (!desc) { | |
955cc8c9 | 148 | virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR); |
a5cf2bb4 | 149 | } else { |
79cd0c80 CH |
150 | if (info) { |
151 | /* virtio-1 allows changing the ring size. */ | |
152 | if (virtio_queue_get_num(vdev, index) < num) { | |
153 | /* Fail if we exceed the maximum number. */ | |
154 | return -EINVAL; | |
155 | } | |
156 | virtio_queue_set_num(vdev, index, num); | |
157 | } else if (virtio_queue_get_num(vdev, index) > num) { | |
158 | /* Fail if we don't have a big enough queue. */ | |
a5cf2bb4 CH |
159 | return -EINVAL; |
160 | } | |
79cd0c80 | 161 | /* We ignore possible increased num for legacy for compatibility. */ |
f24a6840 | 162 | virtio_queue_set_vector(vdev, index, index); |
a5cf2bb4 CH |
163 | } |
164 | /* tell notify handler in case of config change */ | |
8dfbaa6a | 165 | vdev->config_vector = VIRTIO_CCW_QUEUE_MAX; |
a5cf2bb4 CH |
166 | return 0; |
167 | } | |
168 | ||
fa8b0ca5 CH |
169 | static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev) |
170 | { | |
b804e8a6 JL |
171 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
172 | ||
fa8b0ca5 CH |
173 | virtio_ccw_stop_ioeventfd(dev); |
174 | virtio_reset(vdev); | |
175 | if (dev->indicators) { | |
176 | release_indicator(&dev->routes.adapter, dev->indicators); | |
177 | dev->indicators = NULL; | |
178 | } | |
179 | if (dev->indicators2) { | |
180 | release_indicator(&dev->routes.adapter, dev->indicators2); | |
181 | dev->indicators2 = NULL; | |
182 | } | |
183 | if (dev->summary_indicator) { | |
184 | release_indicator(&dev->routes.adapter, dev->summary_indicator); | |
185 | dev->summary_indicator = NULL; | |
186 | } | |
b804e8a6 | 187 | ccw_dev->sch->thinint_active = false; |
fa8b0ca5 CH |
188 | } |
189 | ||
0db87e0d CH |
190 | static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len, |
191 | bool is_legacy) | |
a5cf2bb4 CH |
192 | { |
193 | int ret; | |
194 | VqInfoBlock info; | |
0db87e0d CH |
195 | VqInfoBlockLegacy linfo; |
196 | size_t info_len = is_legacy ? sizeof(linfo) : sizeof(info); | |
197 | ||
198 | if (check_len) { | |
199 | if (ccw.count != info_len) { | |
200 | return -EINVAL; | |
201 | } | |
202 | } else if (ccw.count < info_len) { | |
203 | /* Can't execute command. */ | |
204 | return -EINVAL; | |
205 | } | |
206 | if (!ccw.cda) { | |
207 | return -EFAULT; | |
208 | } | |
209 | if (is_legacy) { | |
210 | linfo.queue = address_space_ldq_be(&address_space_memory, ccw.cda, | |
211 | MEMTXATTRS_UNSPECIFIED, NULL); | |
212 | linfo.align = address_space_ldl_be(&address_space_memory, | |
213 | ccw.cda + sizeof(linfo.queue), | |
214 | MEMTXATTRS_UNSPECIFIED, | |
215 | NULL); | |
216 | linfo.index = address_space_lduw_be(&address_space_memory, | |
217 | ccw.cda + sizeof(linfo.queue) | |
218 | + sizeof(linfo.align), | |
219 | MEMTXATTRS_UNSPECIFIED, | |
220 | NULL); | |
221 | linfo.num = address_space_lduw_be(&address_space_memory, | |
222 | ccw.cda + sizeof(linfo.queue) | |
223 | + sizeof(linfo.align) | |
224 | + sizeof(linfo.index), | |
225 | MEMTXATTRS_UNSPECIFIED, | |
226 | NULL); | |
227 | ret = virtio_ccw_set_vqs(sch, NULL, &linfo); | |
228 | } else { | |
229 | info.desc = address_space_ldq_be(&address_space_memory, ccw.cda, | |
230 | MEMTXATTRS_UNSPECIFIED, NULL); | |
231 | info.index = address_space_lduw_be(&address_space_memory, | |
232 | ccw.cda + sizeof(info.desc) | |
233 | + sizeof(info.res0), | |
234 | MEMTXATTRS_UNSPECIFIED, NULL); | |
235 | info.num = address_space_lduw_be(&address_space_memory, | |
236 | ccw.cda + sizeof(info.desc) | |
237 | + sizeof(info.res0) | |
238 | + sizeof(info.index), | |
239 | MEMTXATTRS_UNSPECIFIED, NULL); | |
240 | info.avail = address_space_ldq_be(&address_space_memory, | |
241 | ccw.cda + sizeof(info.desc) | |
242 | + sizeof(info.res0) | |
243 | + sizeof(info.index) | |
244 | + sizeof(info.num), | |
245 | MEMTXATTRS_UNSPECIFIED, NULL); | |
246 | info.used = address_space_ldq_be(&address_space_memory, | |
247 | ccw.cda + sizeof(info.desc) | |
248 | + sizeof(info.res0) | |
249 | + sizeof(info.index) | |
250 | + sizeof(info.num) | |
251 | + sizeof(info.avail), | |
252 | MEMTXATTRS_UNSPECIFIED, NULL); | |
253 | ret = virtio_ccw_set_vqs(sch, &info, NULL); | |
254 | } | |
255 | sch->curr_status.scsw.count = 0; | |
256 | return ret; | |
257 | } | |
258 | ||
259 | static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw) | |
260 | { | |
261 | int ret; | |
c42767f2 | 262 | VirtioRevInfo revinfo; |
a5cf2bb4 CH |
263 | uint8_t status; |
264 | VirtioFeatDesc features; | |
265 | void *config; | |
266 | hwaddr indicators; | |
267 | VqConfigBlock vq_config; | |
268 | VirtioCcwDevice *dev = sch->driver_data; | |
f24a6840 | 269 | VirtIODevice *vdev = virtio_ccw_get_vdev(sch); |
a5cf2bb4 CH |
270 | bool check_len; |
271 | int len; | |
272 | hwaddr hw_len; | |
7e749462 | 273 | VirtioThinintInfo *thinint; |
a5cf2bb4 CH |
274 | |
275 | if (!dev) { | |
276 | return -EINVAL; | |
277 | } | |
278 | ||
279 | trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid, | |
280 | ccw.cmd_code); | |
281 | check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC)); | |
282 | ||
283 | /* Look at the command. */ | |
284 | switch (ccw.cmd_code) { | |
285 | case CCW_CMD_SET_VQ: | |
0db87e0d | 286 | ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1); |
a5cf2bb4 CH |
287 | break; |
288 | case CCW_CMD_VDEV_RESET: | |
fa8b0ca5 | 289 | virtio_ccw_reset_virtio(dev, vdev); |
a5cf2bb4 CH |
290 | ret = 0; |
291 | break; | |
292 | case CCW_CMD_READ_FEAT: | |
293 | if (check_len) { | |
294 | if (ccw.count != sizeof(features)) { | |
295 | ret = -EINVAL; | |
296 | break; | |
297 | } | |
298 | } else if (ccw.count < sizeof(features)) { | |
299 | /* Can't execute command. */ | |
300 | ret = -EINVAL; | |
301 | break; | |
302 | } | |
303 | if (!ccw.cda) { | |
304 | ret = -EFAULT; | |
305 | } else { | |
9b706dbb MT |
306 | VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); |
307 | ||
42874d3a PM |
308 | features.index = address_space_ldub(&address_space_memory, |
309 | ccw.cda | |
310 | + sizeof(features.features), | |
311 | MEMTXATTRS_UNSPECIFIED, | |
312 | NULL); | |
6b8f1020 | 313 | if (features.index == 0) { |
542571d5 CH |
314 | if (dev->revision >= 1) { |
315 | /* Don't offer legacy features for modern devices. */ | |
316 | features.features = (uint32_t) | |
9b706dbb | 317 | (vdev->host_features & ~vdc->legacy_features); |
542571d5 CH |
318 | } else { |
319 | features.features = (uint32_t)vdev->host_features; | |
320 | } | |
b4f8f9df | 321 | } else if ((features.index == 1) && (dev->revision >= 1)) { |
c42767f2 | 322 | /* |
b4f8f9df CH |
323 | * Only offer feature bits beyond 31 if the guest has |
324 | * negotiated at least revision 1. | |
c42767f2 | 325 | */ |
b4f8f9df | 326 | features.features = (uint32_t)(vdev->host_features >> 32); |
a5cf2bb4 CH |
327 | } else { |
328 | /* Return zeroes if the guest supports more feature bits. */ | |
329 | features.features = 0; | |
330 | } | |
42874d3a PM |
331 | address_space_stl_le(&address_space_memory, ccw.cda, |
332 | features.features, MEMTXATTRS_UNSPECIFIED, | |
333 | NULL); | |
a5cf2bb4 CH |
334 | sch->curr_status.scsw.count = ccw.count - sizeof(features); |
335 | ret = 0; | |
336 | } | |
337 | break; | |
338 | case CCW_CMD_WRITE_FEAT: | |
339 | if (check_len) { | |
340 | if (ccw.count != sizeof(features)) { | |
341 | ret = -EINVAL; | |
342 | break; | |
343 | } | |
344 | } else if (ccw.count < sizeof(features)) { | |
345 | /* Can't execute command. */ | |
346 | ret = -EINVAL; | |
347 | break; | |
348 | } | |
349 | if (!ccw.cda) { | |
350 | ret = -EFAULT; | |
351 | } else { | |
42874d3a PM |
352 | features.index = address_space_ldub(&address_space_memory, |
353 | ccw.cda | |
354 | + sizeof(features.features), | |
355 | MEMTXATTRS_UNSPECIFIED, | |
356 | NULL); | |
357 | features.features = address_space_ldl_le(&address_space_memory, | |
358 | ccw.cda, | |
359 | MEMTXATTRS_UNSPECIFIED, | |
360 | NULL); | |
6b8f1020 | 361 | if (features.index == 0) { |
c42767f2 TH |
362 | virtio_set_features(vdev, |
363 | (vdev->guest_features & 0xffffffff00000000ULL) | | |
364 | features.features); | |
b4f8f9df | 365 | } else if ((features.index == 1) && (dev->revision >= 1)) { |
c42767f2 | 366 | /* |
b4f8f9df CH |
367 | * If the guest did not negotiate at least revision 1, |
368 | * we did not offer it any feature bits beyond 31. Such a | |
369 | * guest passing us any bit here is therefore buggy. | |
c42767f2 | 370 | */ |
c42767f2 TH |
371 | virtio_set_features(vdev, |
372 | (vdev->guest_features & 0x00000000ffffffffULL) | | |
373 | ((uint64_t)features.features << 32)); | |
a5cf2bb4 CH |
374 | } else { |
375 | /* | |
376 | * If the guest supports more feature bits, assert that it | |
377 | * passes us zeroes for those we don't support. | |
378 | */ | |
379 | if (features.features) { | |
380 | fprintf(stderr, "Guest bug: features[%i]=%x (expected 0)\n", | |
381 | features.index, features.features); | |
382 | /* XXX: do a unit check here? */ | |
383 | } | |
384 | } | |
385 | sch->curr_status.scsw.count = ccw.count - sizeof(features); | |
386 | ret = 0; | |
387 | } | |
388 | break; | |
389 | case CCW_CMD_READ_CONF: | |
390 | if (check_len) { | |
f24a6840 | 391 | if (ccw.count > vdev->config_len) { |
a5cf2bb4 CH |
392 | ret = -EINVAL; |
393 | break; | |
394 | } | |
395 | } | |
f24a6840 | 396 | len = MIN(ccw.count, vdev->config_len); |
a5cf2bb4 CH |
397 | if (!ccw.cda) { |
398 | ret = -EFAULT; | |
399 | } else { | |
f24a6840 | 400 | virtio_bus_get_vdev_config(&dev->bus, vdev->config); |
a5cf2bb4 | 401 | /* XXX config space endianness */ |
f24a6840 | 402 | cpu_physical_memory_write(ccw.cda, vdev->config, len); |
a5cf2bb4 CH |
403 | sch->curr_status.scsw.count = ccw.count - len; |
404 | ret = 0; | |
405 | } | |
406 | break; | |
407 | case CCW_CMD_WRITE_CONF: | |
408 | if (check_len) { | |
f24a6840 | 409 | if (ccw.count > vdev->config_len) { |
a5cf2bb4 CH |
410 | ret = -EINVAL; |
411 | break; | |
412 | } | |
413 | } | |
f24a6840 | 414 | len = MIN(ccw.count, vdev->config_len); |
a5cf2bb4 CH |
415 | hw_len = len; |
416 | if (!ccw.cda) { | |
417 | ret = -EFAULT; | |
418 | } else { | |
419 | config = cpu_physical_memory_map(ccw.cda, &hw_len, 0); | |
420 | if (!config) { | |
421 | ret = -EFAULT; | |
422 | } else { | |
423 | len = hw_len; | |
424 | /* XXX config space endianness */ | |
f24a6840 | 425 | memcpy(vdev->config, config, len); |
a5cf2bb4 | 426 | cpu_physical_memory_unmap(config, hw_len, 0, hw_len); |
f24a6840 | 427 | virtio_bus_set_vdev_config(&dev->bus, vdev->config); |
a5cf2bb4 CH |
428 | sch->curr_status.scsw.count = ccw.count - len; |
429 | ret = 0; | |
430 | } | |
431 | } | |
432 | break; | |
e32652f7 PM |
433 | case CCW_CMD_READ_STATUS: |
434 | if (check_len) { | |
435 | if (ccw.count != sizeof(status)) { | |
436 | ret = -EINVAL; | |
437 | break; | |
438 | } | |
439 | } else if (ccw.count < sizeof(status)) { | |
440 | /* Can't execute command. */ | |
441 | ret = -EINVAL; | |
442 | break; | |
443 | } | |
444 | if (!ccw.cda) { | |
445 | ret = -EFAULT; | |
446 | } else { | |
447 | address_space_stb(&address_space_memory, ccw.cda, vdev->status, | |
448 | MEMTXATTRS_UNSPECIFIED, NULL); | |
449 | sch->curr_status.scsw.count = ccw.count - sizeof(vdev->status);; | |
450 | ret = 0; | |
451 | } | |
452 | break; | |
a5cf2bb4 CH |
453 | case CCW_CMD_WRITE_STATUS: |
454 | if (check_len) { | |
455 | if (ccw.count != sizeof(status)) { | |
456 | ret = -EINVAL; | |
457 | break; | |
458 | } | |
459 | } else if (ccw.count < sizeof(status)) { | |
460 | /* Can't execute command. */ | |
461 | ret = -EINVAL; | |
462 | break; | |
463 | } | |
464 | if (!ccw.cda) { | |
465 | ret = -EFAULT; | |
466 | } else { | |
42874d3a PM |
467 | status = address_space_ldub(&address_space_memory, ccw.cda, |
468 | MEMTXATTRS_UNSPECIFIED, NULL); | |
b4436a0b CH |
469 | if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) { |
470 | virtio_ccw_stop_ioeventfd(dev); | |
471 | } | |
0b352fd6 CH |
472 | if (virtio_set_status(vdev, status) == 0) { |
473 | if (vdev->status == 0) { | |
fa8b0ca5 | 474 | virtio_ccw_reset_virtio(dev, vdev); |
0b352fd6 CH |
475 | } |
476 | if (status & VIRTIO_CONFIG_S_DRIVER_OK) { | |
477 | virtio_ccw_start_ioeventfd(dev); | |
478 | } | |
479 | sch->curr_status.scsw.count = ccw.count - sizeof(status); | |
480 | ret = 0; | |
481 | } else { | |
482 | /* Trigger a command reject. */ | |
483 | ret = -ENOSYS; | |
b4436a0b | 484 | } |
a5cf2bb4 CH |
485 | } |
486 | break; | |
487 | case CCW_CMD_SET_IND: | |
488 | if (check_len) { | |
489 | if (ccw.count != sizeof(indicators)) { | |
490 | ret = -EINVAL; | |
491 | break; | |
492 | } | |
493 | } else if (ccw.count < sizeof(indicators)) { | |
494 | /* Can't execute command. */ | |
495 | ret = -EINVAL; | |
496 | break; | |
497 | } | |
7e749462 CH |
498 | if (sch->thinint_active) { |
499 | /* Trigger a command reject. */ | |
500 | ret = -ENOSYS; | |
501 | break; | |
502 | } | |
d1db1fa8 | 503 | if (!ccw.cda) { |
a5cf2bb4 CH |
504 | ret = -EFAULT; |
505 | } else { | |
42874d3a PM |
506 | indicators = address_space_ldq_be(&address_space_memory, ccw.cda, |
507 | MEMTXATTRS_UNSPECIFIED, NULL); | |
7bca3892 | 508 | dev->indicators = get_indicator(indicators, sizeof(uint64_t)); |
a5cf2bb4 CH |
509 | sch->curr_status.scsw.count = ccw.count - sizeof(indicators); |
510 | ret = 0; | |
511 | } | |
512 | break; | |
513 | case CCW_CMD_SET_CONF_IND: | |
514 | if (check_len) { | |
515 | if (ccw.count != sizeof(indicators)) { | |
516 | ret = -EINVAL; | |
517 | break; | |
518 | } | |
519 | } else if (ccw.count < sizeof(indicators)) { | |
520 | /* Can't execute command. */ | |
521 | ret = -EINVAL; | |
522 | break; | |
523 | } | |
d1db1fa8 | 524 | if (!ccw.cda) { |
a5cf2bb4 CH |
525 | ret = -EFAULT; |
526 | } else { | |
42874d3a PM |
527 | indicators = address_space_ldq_be(&address_space_memory, ccw.cda, |
528 | MEMTXATTRS_UNSPECIFIED, NULL); | |
7bca3892 | 529 | dev->indicators2 = get_indicator(indicators, sizeof(uint64_t)); |
a5cf2bb4 CH |
530 | sch->curr_status.scsw.count = ccw.count - sizeof(indicators); |
531 | ret = 0; | |
532 | } | |
533 | break; | |
534 | case CCW_CMD_READ_VQ_CONF: | |
535 | if (check_len) { | |
536 | if (ccw.count != sizeof(vq_config)) { | |
537 | ret = -EINVAL; | |
538 | break; | |
539 | } | |
540 | } else if (ccw.count < sizeof(vq_config)) { | |
541 | /* Can't execute command. */ | |
542 | ret = -EINVAL; | |
543 | break; | |
544 | } | |
545 | if (!ccw.cda) { | |
546 | ret = -EFAULT; | |
547 | } else { | |
42874d3a PM |
548 | vq_config.index = address_space_lduw_be(&address_space_memory, |
549 | ccw.cda, | |
550 | MEMTXATTRS_UNSPECIFIED, | |
551 | NULL); | |
8dfbaa6a | 552 | if (vq_config.index >= VIRTIO_CCW_QUEUE_MAX) { |
d03a3630 CH |
553 | ret = -EINVAL; |
554 | break; | |
555 | } | |
f24a6840 | 556 | vq_config.num_max = virtio_queue_get_num(vdev, |
a5cf2bb4 | 557 | vq_config.index); |
42874d3a PM |
558 | address_space_stw_be(&address_space_memory, |
559 | ccw.cda + sizeof(vq_config.index), | |
560 | vq_config.num_max, | |
561 | MEMTXATTRS_UNSPECIFIED, | |
562 | NULL); | |
a5cf2bb4 CH |
563 | sch->curr_status.scsw.count = ccw.count - sizeof(vq_config); |
564 | ret = 0; | |
565 | } | |
566 | break; | |
7e749462 CH |
567 | case CCW_CMD_SET_IND_ADAPTER: |
568 | if (check_len) { | |
569 | if (ccw.count != sizeof(*thinint)) { | |
570 | ret = -EINVAL; | |
571 | break; | |
572 | } | |
573 | } else if (ccw.count < sizeof(*thinint)) { | |
574 | /* Can't execute command. */ | |
575 | ret = -EINVAL; | |
576 | break; | |
577 | } | |
578 | len = sizeof(*thinint); | |
579 | hw_len = len; | |
580 | if (!ccw.cda) { | |
581 | ret = -EFAULT; | |
582 | } else if (dev->indicators && !sch->thinint_active) { | |
583 | /* Trigger a command reject. */ | |
584 | ret = -ENOSYS; | |
585 | } else { | |
586 | thinint = cpu_physical_memory_map(ccw.cda, &hw_len, 0); | |
587 | if (!thinint) { | |
588 | ret = -EFAULT; | |
589 | } else { | |
7d45285f CH |
590 | uint64_t ind_bit = ldq_be_p(&thinint->ind_bit); |
591 | ||
7e749462 | 592 | len = hw_len; |
7bca3892 | 593 | dev->summary_indicator = |
7d45285f CH |
594 | get_indicator(ldq_be_p(&thinint->summary_indicator), |
595 | sizeof(uint8_t)); | |
596 | dev->indicators = | |
597 | get_indicator(ldq_be_p(&thinint->device_indicator), | |
598 | ind_bit / 8 + 1); | |
7e749462 | 599 | dev->thinint_isc = thinint->isc; |
7d45285f | 600 | dev->routes.adapter.ind_offset = ind_bit; |
d426d9fb | 601 | dev->routes.adapter.summary_offset = 7; |
7e749462 | 602 | cpu_physical_memory_unmap(thinint, hw_len, 0, hw_len); |
03cf077a CH |
603 | ret = css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO, |
604 | dev->thinint_isc, true, false, | |
d426d9fb | 605 | &dev->routes.adapter.adapter_id); |
03cf077a | 606 | assert(ret == 0); |
7bca3892 CH |
607 | sch->thinint_active = ((dev->indicators != NULL) && |
608 | (dev->summary_indicator != NULL)); | |
7e749462 CH |
609 | sch->curr_status.scsw.count = ccw.count - len; |
610 | ret = 0; | |
611 | } | |
612 | } | |
613 | break; | |
c42767f2 TH |
614 | case CCW_CMD_SET_VIRTIO_REV: |
615 | len = sizeof(revinfo); | |
616 | if (ccw.count < len) { | |
617 | ret = -EINVAL; | |
618 | break; | |
619 | } | |
620 | if (!ccw.cda) { | |
621 | ret = -EFAULT; | |
622 | break; | |
623 | } | |
624 | revinfo.revision = | |
625 | address_space_lduw_be(&address_space_memory, ccw.cda, | |
626 | MEMTXATTRS_UNSPECIFIED, NULL); | |
627 | revinfo.length = | |
628 | address_space_lduw_be(&address_space_memory, | |
629 | ccw.cda + sizeof(revinfo.revision), | |
630 | MEMTXATTRS_UNSPECIFIED, NULL); | |
631 | if (ccw.count < len + revinfo.length || | |
632 | (check_len && ccw.count > len + revinfo.length)) { | |
633 | ret = -EINVAL; | |
634 | break; | |
635 | } | |
636 | /* | |
637 | * Once we start to support revisions with additional data, we'll | |
638 | * need to fetch it here. Nothing to do for now, though. | |
639 | */ | |
640 | if (dev->revision >= 0 || | |
542571d5 | 641 | revinfo.revision > virtio_ccw_rev_max(dev)) { |
c42767f2 TH |
642 | ret = -ENOSYS; |
643 | break; | |
644 | } | |
645 | ret = 0; | |
646 | dev->revision = revinfo.revision; | |
647 | break; | |
a5cf2bb4 | 648 | default: |
8d034a6f | 649 | ret = -ENOSYS; |
a5cf2bb4 CH |
650 | break; |
651 | } | |
652 | return ret; | |
653 | } | |
654 | ||
c42767f2 TH |
655 | static void virtio_sch_disable_cb(SubchDev *sch) |
656 | { | |
657 | VirtioCcwDevice *dev = sch->driver_data; | |
658 | ||
659 | dev->revision = -1; | |
660 | } | |
661 | ||
1fa75523 | 662 | static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp) |
a5cf2bb4 | 663 | { |
1fa75523 | 664 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev); |
b804e8a6 JL |
665 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
666 | SubchDev *sch = css_create_virtual_sch(ccw_dev->bus_id, errp); | |
cf249935 | 667 | Error *err = NULL; |
a5cf2bb4 | 668 | |
cf249935 SS |
669 | if (!sch) { |
670 | return; | |
a5cf2bb4 CH |
671 | } |
672 | ||
cf249935 | 673 | sch->driver_data = dev; |
a5cf2bb4 | 674 | sch->ccw_cb = virtio_ccw_cb; |
c42767f2 | 675 | sch->disable_cb = virtio_sch_disable_cb; |
a5cf2bb4 CH |
676 | sch->id.reserved = 0xff; |
677 | sch->id.cu_type = VIRTIO_CCW_CU_TYPE; | |
b804e8a6 | 678 | ccw_dev->sch = sch; |
cf249935 | 679 | dev->indicators = NULL; |
c42767f2 | 680 | dev->revision = -1; |
cf249935 SS |
681 | css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE); |
682 | ||
683 | trace_virtio_ccw_new_device( | |
684 | sch->cssid, sch->ssid, sch->schid, sch->devno, | |
b804e8a6 | 685 | ccw_dev->bus_id.valid ? "user-configured" : "auto-configured"); |
c42767f2 | 686 | |
ca2b413c PB |
687 | if (!kvm_eventfds_enabled()) { |
688 | dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD; | |
689 | } | |
690 | ||
1fa75523 CH |
691 | if (k->realize) { |
692 | k->realize(dev, &err); | |
693 | } | |
694 | if (err) { | |
695 | error_propagate(errp, err); | |
06e686ea | 696 | css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); |
b804e8a6 | 697 | ccw_dev->sch = NULL; |
cf249935 | 698 | g_free(sch); |
1fa75523 | 699 | } |
a5cf2bb4 CH |
700 | } |
701 | ||
702 | static int virtio_ccw_exit(VirtioCcwDevice *dev) | |
703 | { | |
b804e8a6 JL |
704 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
705 | SubchDev *sch = ccw_dev->sch; | |
a5cf2bb4 CH |
706 | |
707 | if (sch) { | |
708 | css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); | |
709 | g_free(sch); | |
710 | } | |
7bca3892 | 711 | if (dev->indicators) { |
d426d9fb | 712 | release_indicator(&dev->routes.adapter, dev->indicators); |
7bca3892 CH |
713 | dev->indicators = NULL; |
714 | } | |
a5cf2bb4 CH |
715 | return 0; |
716 | } | |
717 | ||
5e5ced38 | 718 | static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 719 | { |
800ced8c | 720 | DeviceState *qdev = DEVICE(ccw_dev); |
89334c8b FK |
721 | VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev); |
722 | DeviceState *vdev = DEVICE(&dev->vdev); | |
a5cf2bb4 | 723 | |
800ced8c FK |
724 | virtio_net_set_netclient_name(&dev->vdev, qdev->id, |
725 | object_get_typename(OBJECT(qdev))); | |
89334c8b | 726 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 727 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
728 | } |
729 | ||
89334c8b | 730 | static void virtio_ccw_net_instance_init(Object *obj) |
a5cf2bb4 | 731 | { |
89334c8b | 732 | VirtIONetCcw *dev = VIRTIO_NET_CCW(obj); |
c8075caf GA |
733 | |
734 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
735 | TYPE_VIRTIO_NET); | |
0cf63c3e GA |
736 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
737 | "bootindex", &error_abort); | |
a5cf2bb4 CH |
738 | } |
739 | ||
5e5ced38 | 740 | static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 741 | { |
3400c455 FK |
742 | VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev); |
743 | DeviceState *vdev = DEVICE(&dev->vdev); | |
5e5ced38 | 744 | |
3400c455 | 745 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 746 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
747 | } |
748 | ||
3400c455 | 749 | static void virtio_ccw_blk_instance_init(Object *obj) |
a5cf2bb4 | 750 | { |
3400c455 | 751 | VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj); |
c8075caf GA |
752 | |
753 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
754 | TYPE_VIRTIO_BLK); | |
467b3f33 SH |
755 | object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread", |
756 | &error_abort); | |
aeb98ddc GA |
757 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
758 | "bootindex", &error_abort); | |
a5cf2bb4 CH |
759 | } |
760 | ||
5e5ced38 | 761 | static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 762 | { |
6acf69cd FK |
763 | VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev); |
764 | DeviceState *vdev = DEVICE(&dev->vdev); | |
80270a19 FK |
765 | DeviceState *proxy = DEVICE(ccw_dev); |
766 | char *bus_name; | |
767 | ||
768 | /* | |
769 | * For command line compatibility, this sets the virtio-serial-device bus | |
770 | * name as before. | |
771 | */ | |
772 | if (proxy->id) { | |
773 | bus_name = g_strdup_printf("%s.0", proxy->id); | |
774 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
775 | g_free(bus_name); | |
776 | } | |
a5cf2bb4 | 777 | |
6acf69cd | 778 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 779 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
780 | } |
781 | ||
6acf69cd FK |
782 | |
783 | static void virtio_ccw_serial_instance_init(Object *obj) | |
a5cf2bb4 | 784 | { |
6acf69cd | 785 | VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj); |
c8075caf GA |
786 | |
787 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
788 | TYPE_VIRTIO_SERIAL); | |
a5cf2bb4 CH |
789 | } |
790 | ||
5e5ced38 | 791 | static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 792 | { |
30bff6a0 FK |
793 | VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev); |
794 | DeviceState *vdev = DEVICE(&dev->vdev); | |
a5cf2bb4 | 795 | |
30bff6a0 | 796 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 797 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
798 | } |
799 | ||
30bff6a0 | 800 | static void virtio_ccw_balloon_instance_init(Object *obj) |
a5cf2bb4 | 801 | { |
30bff6a0 | 802 | VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj); |
ecfa60e3 | 803 | |
a6027b0f DL |
804 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
805 | TYPE_VIRTIO_BALLOON); | |
ecfa60e3 SZ |
806 | object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), |
807 | "guest-stats", &error_abort); | |
808 | object_property_add_alias(obj, "guest-stats-polling-interval", | |
809 | OBJECT(&dev->vdev), | |
810 | "guest-stats-polling-interval", &error_abort); | |
a5cf2bb4 CH |
811 | } |
812 | ||
5e5ced38 | 813 | static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 814 | { |
c908ea10 FK |
815 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev); |
816 | DeviceState *vdev = DEVICE(&dev->vdev); | |
6f32a6b4 FK |
817 | DeviceState *qdev = DEVICE(ccw_dev); |
818 | char *bus_name; | |
819 | ||
820 | /* | |
821 | * For command line compatibility, this sets the virtio-scsi-device bus | |
822 | * name as before. | |
823 | */ | |
824 | if (qdev->id) { | |
825 | bus_name = g_strdup_printf("%s.0", qdev->id); | |
826 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
827 | g_free(bus_name); | |
828 | } | |
a5cf2bb4 | 829 | |
c908ea10 | 830 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 831 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
832 | } |
833 | ||
c908ea10 | 834 | static void virtio_ccw_scsi_instance_init(Object *obj) |
a5cf2bb4 | 835 | { |
c908ea10 | 836 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj); |
c8075caf GA |
837 | |
838 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
839 | TYPE_VIRTIO_SCSI); | |
19d339f1 FZ |
840 | object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev), "iothread", |
841 | &error_abort); | |
a5cf2bb4 CH |
842 | } |
843 | ||
ccf6916c | 844 | #ifdef CONFIG_VHOST_SCSI |
5e5ced38 | 845 | static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
ccf6916c PB |
846 | { |
847 | VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev); | |
848 | DeviceState *vdev = DEVICE(&dev->vdev); | |
849 | ||
850 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
6b62d961 | 851 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
ccf6916c PB |
852 | } |
853 | ||
854 | static void vhost_ccw_scsi_instance_init(Object *obj) | |
855 | { | |
856 | VHostSCSICcw *dev = VHOST_SCSI_CCW(obj); | |
c8075caf GA |
857 | |
858 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
859 | TYPE_VHOST_SCSI); | |
ccf6916c PB |
860 | } |
861 | #endif | |
862 | ||
5e5ced38 | 863 | static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
2362ecc5 | 864 | { |
2db26d4c FK |
865 | VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev); |
866 | DeviceState *vdev = DEVICE(&dev->vdev); | |
5e5ced38 | 867 | Error *err = NULL; |
2362ecc5 | 868 | |
2db26d4c | 869 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
5e5ced38 MA |
870 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); |
871 | if (err) { | |
872 | error_propagate(errp, err); | |
873 | return; | |
2362ecc5 | 874 | } |
2362ecc5 | 875 | |
2db26d4c | 876 | object_property_set_link(OBJECT(dev), |
5b456438 | 877 | OBJECT(dev->vdev.conf.rng), "rng", |
2db26d4c | 878 | NULL); |
2362ecc5 CH |
879 | } |
880 | ||
a5cf2bb4 CH |
881 | /* DeviceState to VirtioCcwDevice. Note: used on datapath, |
882 | * be careful and test performance if you change this. | |
883 | */ | |
884 | static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d) | |
885 | { | |
b804e8a6 JL |
886 | CcwDevice *ccw_dev = to_ccw_dev_fast(d); |
887 | ||
888 | return container_of(ccw_dev, VirtioCcwDevice, parent_obj); | |
a5cf2bb4 CH |
889 | } |
890 | ||
7e749462 CH |
891 | static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc, |
892 | uint8_t to_be_set) | |
893 | { | |
894 | uint8_t ind_old, ind_new; | |
895 | hwaddr len = 1; | |
896 | uint8_t *ind_addr; | |
897 | ||
898 | ind_addr = cpu_physical_memory_map(ind_loc, &len, 1); | |
899 | if (!ind_addr) { | |
900 | error_report("%s(%x.%x.%04x): unable to access indicator", | |
901 | __func__, sch->cssid, sch->ssid, sch->schid); | |
902 | return -1; | |
903 | } | |
904 | do { | |
905 | ind_old = *ind_addr; | |
906 | ind_new = ind_old | to_be_set; | |
907 | } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old); | |
06409bd9 | 908 | trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new); |
7e749462 CH |
909 | cpu_physical_memory_unmap(ind_addr, len, 1, len); |
910 | ||
911 | return ind_old; | |
912 | } | |
913 | ||
a5cf2bb4 CH |
914 | static void virtio_ccw_notify(DeviceState *d, uint16_t vector) |
915 | { | |
916 | VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d); | |
b804e8a6 JL |
917 | CcwDevice *ccw_dev = to_ccw_dev_fast(d); |
918 | SubchDev *sch = ccw_dev->sch; | |
a5cf2bb4 CH |
919 | uint64_t indicators; |
920 | ||
1789f4e3 HP |
921 | /* queue indicators + secondary indicators */ |
922 | if (vector >= VIRTIO_CCW_QUEUE_MAX + 64) { | |
a5cf2bb4 CH |
923 | return; |
924 | } | |
925 | ||
8dfbaa6a | 926 | if (vector < VIRTIO_CCW_QUEUE_MAX) { |
7c486976 CH |
927 | if (!dev->indicators) { |
928 | return; | |
929 | } | |
7e749462 CH |
930 | if (sch->thinint_active) { |
931 | /* | |
932 | * In the adapter interrupt case, indicators points to a | |
933 | * memory area that may be (way) larger than 64 bit and | |
934 | * ind_bit indicates the start of the indicators in a big | |
935 | * endian notation. | |
936 | */ | |
d426d9fb CH |
937 | uint64_t ind_bit = dev->routes.adapter.ind_offset; |
938 | ||
7bca3892 | 939 | virtio_set_ind_atomic(sch, dev->indicators->addr + |
d426d9fb CH |
940 | (ind_bit + vector) / 8, |
941 | 0x80 >> ((ind_bit + vector) % 8)); | |
7bca3892 | 942 | if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr, |
7e749462 CH |
943 | 0x01)) { |
944 | css_adapter_interrupt(dev->thinint_isc); | |
945 | } | |
946 | } else { | |
42874d3a PM |
947 | indicators = address_space_ldq(&address_space_memory, |
948 | dev->indicators->addr, | |
949 | MEMTXATTRS_UNSPECIFIED, | |
950 | NULL); | |
7e749462 | 951 | indicators |= 1ULL << vector; |
42874d3a PM |
952 | address_space_stq(&address_space_memory, dev->indicators->addr, |
953 | indicators, MEMTXATTRS_UNSPECIFIED, NULL); | |
7e749462 CH |
954 | css_conditional_io_interrupt(sch); |
955 | } | |
a5cf2bb4 | 956 | } else { |
7c486976 CH |
957 | if (!dev->indicators2) { |
958 | return; | |
959 | } | |
a5cf2bb4 | 960 | vector = 0; |
42874d3a PM |
961 | indicators = address_space_ldq(&address_space_memory, |
962 | dev->indicators2->addr, | |
963 | MEMTXATTRS_UNSPECIFIED, | |
964 | NULL); | |
19380b1b | 965 | indicators |= 1ULL << vector; |
42874d3a PM |
966 | address_space_stq(&address_space_memory, dev->indicators2->addr, |
967 | indicators, MEMTXATTRS_UNSPECIFIED, NULL); | |
7e749462 | 968 | css_conditional_io_interrupt(sch); |
a5cf2bb4 | 969 | } |
a5cf2bb4 CH |
970 | } |
971 | ||
a5cf2bb4 CH |
972 | static void virtio_ccw_reset(DeviceState *d) |
973 | { | |
974 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
f24a6840 | 975 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
b804e8a6 | 976 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
a5cf2bb4 | 977 | |
fa8b0ca5 | 978 | virtio_ccw_reset_virtio(dev, vdev); |
b804e8a6 | 979 | css_reset_sch(ccw_dev->sch); |
a5cf2bb4 CH |
980 | } |
981 | ||
b4436a0b CH |
982 | static void virtio_ccw_vmstate_change(DeviceState *d, bool running) |
983 | { | |
984 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
985 | ||
986 | if (running) { | |
987 | virtio_ccw_start_ioeventfd(dev); | |
988 | } else { | |
989 | virtio_ccw_stop_ioeventfd(dev); | |
990 | } | |
991 | } | |
992 | ||
320ce850 CH |
993 | static bool virtio_ccw_query_guest_notifiers(DeviceState *d) |
994 | { | |
b804e8a6 | 995 | CcwDevice *dev = CCW_DEVICE(d); |
320ce850 CH |
996 | |
997 | return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA); | |
998 | } | |
999 | ||
d426d9fb CH |
1000 | static int virtio_ccw_get_mappings(VirtioCcwDevice *dev) |
1001 | { | |
1002 | int r; | |
b804e8a6 | 1003 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
d426d9fb | 1004 | |
b804e8a6 | 1005 | if (!ccw_dev->sch->thinint_active) { |
d426d9fb CH |
1006 | return -EINVAL; |
1007 | } | |
1008 | ||
1009 | r = map_indicator(&dev->routes.adapter, dev->summary_indicator); | |
1010 | if (r) { | |
1011 | return r; | |
1012 | } | |
1013 | r = map_indicator(&dev->routes.adapter, dev->indicators); | |
1014 | if (r) { | |
1015 | return r; | |
1016 | } | |
1017 | dev->routes.adapter.summary_addr = dev->summary_indicator->map; | |
1018 | dev->routes.adapter.ind_addr = dev->indicators->map; | |
1019 | ||
1020 | return 0; | |
1021 | } | |
1022 | ||
1023 | static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs) | |
1024 | { | |
1025 | int i; | |
1026 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1027 | int ret; | |
1028 | S390FLICState *fs = s390_get_flic(); | |
1029 | S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); | |
1030 | ||
1031 | ret = virtio_ccw_get_mappings(dev); | |
1032 | if (ret) { | |
1033 | return ret; | |
1034 | } | |
1035 | for (i = 0; i < nvqs; i++) { | |
1036 | if (!virtio_queue_get_num(vdev, i)) { | |
1037 | break; | |
1038 | } | |
1039 | } | |
1040 | dev->routes.num_routes = i; | |
1041 | return fsc->add_adapter_routes(fs, &dev->routes); | |
1042 | } | |
1043 | ||
1044 | static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs) | |
1045 | { | |
1046 | S390FLICState *fs = s390_get_flic(); | |
1047 | S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); | |
1048 | ||
1049 | fsc->release_adapter_routes(fs, &dev->routes); | |
1050 | } | |
1051 | ||
1052 | static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n) | |
1053 | { | |
1054 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1055 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
1056 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); | |
1057 | ||
1c9b71a7 EA |
1058 | return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL, |
1059 | dev->routes.gsi[n]); | |
d426d9fb CH |
1060 | } |
1061 | ||
1062 | static void virtio_ccw_remove_irqfd(VirtioCcwDevice *dev, int n) | |
1063 | { | |
1064 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1065 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
1066 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); | |
1067 | int ret; | |
1068 | ||
1c9b71a7 EA |
1069 | ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier, |
1070 | dev->routes.gsi[n]); | |
d426d9fb CH |
1071 | assert(ret == 0); |
1072 | } | |
1073 | ||
320ce850 CH |
1074 | static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n, |
1075 | bool assign, bool with_irqfd) | |
1076 | { | |
f24a6840 PB |
1077 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
1078 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
320ce850 | 1079 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); |
f24a6840 | 1080 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
320ce850 CH |
1081 | |
1082 | if (assign) { | |
1083 | int r = event_notifier_init(notifier, 0); | |
1084 | ||
1085 | if (r < 0) { | |
1086 | return r; | |
1087 | } | |
1088 | virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd); | |
d426d9fb CH |
1089 | if (with_irqfd) { |
1090 | r = virtio_ccw_add_irqfd(dev, n); | |
1091 | if (r) { | |
1092 | virtio_queue_set_guest_notifier_fd_handler(vq, false, | |
1093 | with_irqfd); | |
1094 | return r; | |
1095 | } | |
1096 | } | |
1097 | /* | |
1098 | * We do not support individual masking for channel devices, so we | |
1099 | * need to manually trigger any guest masking callbacks here. | |
320ce850 | 1100 | */ |
2858bc68 | 1101 | if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) { |
f24a6840 | 1102 | k->guest_notifier_mask(vdev, n, false); |
320ce850 CH |
1103 | } |
1104 | /* get lost events and re-inject */ | |
1105 | if (k->guest_notifier_pending && | |
f24a6840 | 1106 | k->guest_notifier_pending(vdev, n)) { |
320ce850 CH |
1107 | event_notifier_set(notifier); |
1108 | } | |
1109 | } else { | |
2858bc68 | 1110 | if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) { |
f24a6840 | 1111 | k->guest_notifier_mask(vdev, n, true); |
320ce850 | 1112 | } |
d426d9fb CH |
1113 | if (with_irqfd) { |
1114 | virtio_ccw_remove_irqfd(dev, n); | |
1115 | } | |
320ce850 CH |
1116 | virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd); |
1117 | event_notifier_cleanup(notifier); | |
1118 | } | |
1119 | return 0; | |
1120 | } | |
1121 | ||
1122 | static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs, | |
1123 | bool assigned) | |
1124 | { | |
1125 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
f24a6840 | 1126 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
b804e8a6 JL |
1127 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
1128 | bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled(); | |
320ce850 CH |
1129 | int r, n; |
1130 | ||
d426d9fb CH |
1131 | if (with_irqfd && assigned) { |
1132 | /* irq routes need to be set up before assigning irqfds */ | |
1133 | r = virtio_ccw_setup_irqroutes(dev, nvqs); | |
1134 | if (r < 0) { | |
1135 | goto irqroute_error; | |
1136 | } | |
1137 | } | |
320ce850 CH |
1138 | for (n = 0; n < nvqs; n++) { |
1139 | if (!virtio_queue_get_num(vdev, n)) { | |
1140 | break; | |
1141 | } | |
d426d9fb | 1142 | r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd); |
320ce850 CH |
1143 | if (r < 0) { |
1144 | goto assign_error; | |
1145 | } | |
1146 | } | |
d426d9fb CH |
1147 | if (with_irqfd && !assigned) { |
1148 | /* release irq routes after irqfds have been released */ | |
1149 | virtio_ccw_release_irqroutes(dev, nvqs); | |
1150 | } | |
320ce850 CH |
1151 | return 0; |
1152 | ||
1153 | assign_error: | |
1154 | while (--n >= 0) { | |
1155 | virtio_ccw_set_guest_notifier(dev, n, !assigned, false); | |
1156 | } | |
d426d9fb CH |
1157 | irqroute_error: |
1158 | if (with_irqfd && assigned) { | |
1159 | virtio_ccw_release_irqroutes(dev, nvqs); | |
1160 | } | |
320ce850 CH |
1161 | return r; |
1162 | } | |
1163 | ||
bcb2b582 JF |
1164 | static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f) |
1165 | { | |
1166 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1167 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1168 | ||
1169 | qemu_put_be16(f, virtio_queue_vector(vdev, n)); | |
1170 | } | |
1171 | ||
1172 | static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f) | |
1173 | { | |
1174 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1175 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1176 | uint16_t vector; | |
1177 | ||
1178 | qemu_get_be16s(f, &vector); | |
1179 | virtio_queue_set_vector(vdev, n , vector); | |
1180 | ||
1181 | return 0; | |
1182 | } | |
1183 | ||
1184 | static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f) | |
1185 | { | |
1186 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
b804e8a6 JL |
1187 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
1188 | SubchDev *s = ccw_dev->sch; | |
2a72ea5f | 1189 | VirtIODevice *vdev = virtio_ccw_get_vdev(s); |
bcb2b582 JF |
1190 | |
1191 | subch_device_save(s, f); | |
1192 | if (dev->indicators != NULL) { | |
1193 | qemu_put_be32(f, dev->indicators->len); | |
1194 | qemu_put_be64(f, dev->indicators->addr); | |
1195 | } else { | |
1196 | qemu_put_be32(f, 0); | |
1197 | qemu_put_be64(f, 0UL); | |
1198 | } | |
1199 | if (dev->indicators2 != NULL) { | |
1200 | qemu_put_be32(f, dev->indicators2->len); | |
1201 | qemu_put_be64(f, dev->indicators2->addr); | |
1202 | } else { | |
1203 | qemu_put_be32(f, 0); | |
1204 | qemu_put_be64(f, 0UL); | |
1205 | } | |
1206 | if (dev->summary_indicator != NULL) { | |
1207 | qemu_put_be32(f, dev->summary_indicator->len); | |
1208 | qemu_put_be64(f, dev->summary_indicator->addr); | |
1209 | } else { | |
1210 | qemu_put_be32(f, 0); | |
1211 | qemu_put_be64(f, 0UL); | |
1212 | } | |
2a72ea5f | 1213 | qemu_put_be16(f, vdev->config_vector); |
bcb2b582 JF |
1214 | qemu_put_be64(f, dev->routes.adapter.ind_offset); |
1215 | qemu_put_byte(f, dev->thinint_isc); | |
213941d7 | 1216 | qemu_put_be32(f, dev->revision); |
bcb2b582 JF |
1217 | } |
1218 | ||
1219 | static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f) | |
1220 | { | |
1221 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
b804e8a6 JL |
1222 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
1223 | SubchDev *s = ccw_dev->sch; | |
2a72ea5f | 1224 | VirtIODevice *vdev = virtio_ccw_get_vdev(s); |
bcb2b582 JF |
1225 | int len; |
1226 | ||
1227 | s->driver_data = dev; | |
1228 | subch_device_load(s, f); | |
1229 | len = qemu_get_be32(f); | |
1230 | if (len != 0) { | |
1231 | dev->indicators = get_indicator(qemu_get_be64(f), len); | |
1232 | } else { | |
1233 | qemu_get_be64(f); | |
1234 | dev->indicators = NULL; | |
1235 | } | |
1236 | len = qemu_get_be32(f); | |
1237 | if (len != 0) { | |
1238 | dev->indicators2 = get_indicator(qemu_get_be64(f), len); | |
1239 | } else { | |
1240 | qemu_get_be64(f); | |
1241 | dev->indicators2 = NULL; | |
1242 | } | |
1243 | len = qemu_get_be32(f); | |
1244 | if (len != 0) { | |
1245 | dev->summary_indicator = get_indicator(qemu_get_be64(f), len); | |
1246 | } else { | |
1247 | qemu_get_be64(f); | |
1248 | dev->summary_indicator = NULL; | |
1249 | } | |
2a72ea5f | 1250 | qemu_get_be16s(f, &vdev->config_vector); |
bcb2b582 JF |
1251 | dev->routes.adapter.ind_offset = qemu_get_be64(f); |
1252 | dev->thinint_isc = qemu_get_byte(f); | |
2af9170c | 1253 | dev->revision = qemu_get_be32(f); |
bcb2b582 JF |
1254 | if (s->thinint_active) { |
1255 | return css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO, | |
1256 | dev->thinint_isc, true, false, | |
1257 | &dev->routes.adapter.adapter_id); | |
1258 | } | |
1259 | ||
1260 | return 0; | |
1261 | } | |
1262 | ||
d1b4259f MC |
1263 | static void virtio_ccw_pre_plugged(DeviceState *d, Error **errp) |
1264 | { | |
1265 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1266 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1267 | ||
1268 | if (dev->max_rev >= 1) { | |
1269 | virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1); | |
1270 | } | |
1271 | } | |
1272 | ||
fb846a09 | 1273 | /* This is called by virtio-bus just after the device is plugged. */ |
e8398045 | 1274 | static void virtio_ccw_device_plugged(DeviceState *d, Error **errp) |
fb846a09 CH |
1275 | { |
1276 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
10ceaa1e | 1277 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
b804e8a6 JL |
1278 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
1279 | SubchDev *sch = ccw_dev->sch; | |
10ceaa1e JW |
1280 | int n = virtio_get_num_queues(vdev); |
1281 | ||
d1b4259f MC |
1282 | if (!virtio_has_feature(vdev->host_features, VIRTIO_F_VERSION_1)) { |
1283 | dev->max_rev = 0; | |
1284 | } | |
1285 | ||
10ceaa1e | 1286 | if (virtio_get_num_queues(vdev) > VIRTIO_CCW_QUEUE_MAX) { |
b34aee54 | 1287 | error_setg(errp, "The number of virtqueues %d " |
10ceaa1e JW |
1288 | "exceeds ccw limit %d", n, |
1289 | VIRTIO_CCW_QUEUE_MAX); | |
1290 | return; | |
1291 | } | |
fb846a09 CH |
1292 | |
1293 | sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus); | |
1294 | ||
542571d5 | 1295 | |
fb846a09 CH |
1296 | css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, |
1297 | d->hotplugged, 1); | |
1298 | } | |
1299 | ||
1300 | static void virtio_ccw_device_unplugged(DeviceState *d) | |
1301 | { | |
1302 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1303 | ||
1304 | virtio_ccw_stop_ioeventfd(dev); | |
1305 | } | |
a5cf2bb4 CH |
1306 | /**************** Virtio-ccw Bus Device Descriptions *******************/ |
1307 | ||
a5cf2bb4 | 1308 | static Property virtio_ccw_net_properties[] = { |
b804e8a6 | 1309 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1310 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1311 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1312 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1313 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1314 | DEFINE_PROP_END_OF_LIST(), |
1315 | }; | |
1316 | ||
1317 | static void virtio_ccw_net_class_init(ObjectClass *klass, void *data) | |
1318 | { | |
1319 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1320 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1321 | ||
5e5ced38 | 1322 | k->realize = virtio_ccw_net_realize; |
89334c8b | 1323 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1324 | dc->reset = virtio_ccw_reset; |
1325 | dc->props = virtio_ccw_net_properties; | |
cd20d616 | 1326 | set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); |
a5cf2bb4 CH |
1327 | } |
1328 | ||
1329 | static const TypeInfo virtio_ccw_net = { | |
89334c8b | 1330 | .name = TYPE_VIRTIO_NET_CCW, |
a5cf2bb4 | 1331 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
89334c8b FK |
1332 | .instance_size = sizeof(VirtIONetCcw), |
1333 | .instance_init = virtio_ccw_net_instance_init, | |
a5cf2bb4 CH |
1334 | .class_init = virtio_ccw_net_class_init, |
1335 | }; | |
1336 | ||
1337 | static Property virtio_ccw_blk_properties[] = { | |
b804e8a6 | 1338 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1339 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1340 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1341 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1342 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1343 | DEFINE_PROP_END_OF_LIST(), |
1344 | }; | |
1345 | ||
1346 | static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data) | |
1347 | { | |
1348 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1349 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1350 | ||
5e5ced38 | 1351 | k->realize = virtio_ccw_blk_realize; |
3400c455 | 1352 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1353 | dc->reset = virtio_ccw_reset; |
1354 | dc->props = virtio_ccw_blk_properties; | |
cd20d616 | 1355 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
a5cf2bb4 CH |
1356 | } |
1357 | ||
1358 | static const TypeInfo virtio_ccw_blk = { | |
3400c455 | 1359 | .name = TYPE_VIRTIO_BLK_CCW, |
a5cf2bb4 | 1360 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
3400c455 FK |
1361 | .instance_size = sizeof(VirtIOBlkCcw), |
1362 | .instance_init = virtio_ccw_blk_instance_init, | |
a5cf2bb4 CH |
1363 | .class_init = virtio_ccw_blk_class_init, |
1364 | }; | |
1365 | ||
1366 | static Property virtio_ccw_serial_properties[] = { | |
b804e8a6 | 1367 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1368 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1369 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1370 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1371 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1372 | DEFINE_PROP_END_OF_LIST(), |
1373 | }; | |
1374 | ||
1375 | static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data) | |
1376 | { | |
1377 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1378 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1379 | ||
5e5ced38 | 1380 | k->realize = virtio_ccw_serial_realize; |
6acf69cd | 1381 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1382 | dc->reset = virtio_ccw_reset; |
1383 | dc->props = virtio_ccw_serial_properties; | |
cd20d616 | 1384 | set_bit(DEVICE_CATEGORY_INPUT, dc->categories); |
a5cf2bb4 CH |
1385 | } |
1386 | ||
1387 | static const TypeInfo virtio_ccw_serial = { | |
6acf69cd | 1388 | .name = TYPE_VIRTIO_SERIAL_CCW, |
a5cf2bb4 | 1389 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
6acf69cd FK |
1390 | .instance_size = sizeof(VirtioSerialCcw), |
1391 | .instance_init = virtio_ccw_serial_instance_init, | |
a5cf2bb4 CH |
1392 | .class_init = virtio_ccw_serial_class_init, |
1393 | }; | |
1394 | ||
1395 | static Property virtio_ccw_balloon_properties[] = { | |
b804e8a6 | 1396 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1397 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1398 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1399 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1400 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1401 | DEFINE_PROP_END_OF_LIST(), |
1402 | }; | |
1403 | ||
1404 | static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data) | |
1405 | { | |
1406 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1407 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1408 | ||
5e5ced38 | 1409 | k->realize = virtio_ccw_balloon_realize; |
30bff6a0 | 1410 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1411 | dc->reset = virtio_ccw_reset; |
1412 | dc->props = virtio_ccw_balloon_properties; | |
cd20d616 | 1413 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
a5cf2bb4 CH |
1414 | } |
1415 | ||
1416 | static const TypeInfo virtio_ccw_balloon = { | |
30bff6a0 | 1417 | .name = TYPE_VIRTIO_BALLOON_CCW, |
a5cf2bb4 | 1418 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
30bff6a0 FK |
1419 | .instance_size = sizeof(VirtIOBalloonCcw), |
1420 | .instance_init = virtio_ccw_balloon_instance_init, | |
a5cf2bb4 CH |
1421 | .class_init = virtio_ccw_balloon_class_init, |
1422 | }; | |
1423 | ||
1424 | static Property virtio_ccw_scsi_properties[] = { | |
b804e8a6 | 1425 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1426 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1427 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1428 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1429 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1430 | DEFINE_PROP_END_OF_LIST(), |
1431 | }; | |
1432 | ||
1433 | static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data) | |
1434 | { | |
1435 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1436 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1437 | ||
5e5ced38 | 1438 | k->realize = virtio_ccw_scsi_realize; |
c908ea10 | 1439 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1440 | dc->reset = virtio_ccw_reset; |
1441 | dc->props = virtio_ccw_scsi_properties; | |
cd20d616 | 1442 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
a5cf2bb4 CH |
1443 | } |
1444 | ||
1445 | static const TypeInfo virtio_ccw_scsi = { | |
c908ea10 | 1446 | .name = TYPE_VIRTIO_SCSI_CCW, |
a5cf2bb4 | 1447 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
c908ea10 FK |
1448 | .instance_size = sizeof(VirtIOSCSICcw), |
1449 | .instance_init = virtio_ccw_scsi_instance_init, | |
a5cf2bb4 CH |
1450 | .class_init = virtio_ccw_scsi_class_init, |
1451 | }; | |
1452 | ||
ccf6916c PB |
1453 | #ifdef CONFIG_VHOST_SCSI |
1454 | static Property vhost_ccw_scsi_properties[] = { | |
b804e8a6 | 1455 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
542571d5 CH |
1456 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1457 | VIRTIO_CCW_MAX_REV), | |
ccf6916c PB |
1458 | DEFINE_PROP_END_OF_LIST(), |
1459 | }; | |
1460 | ||
1461 | static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data) | |
1462 | { | |
1463 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1464 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1465 | ||
5e5ced38 | 1466 | k->realize = vhost_ccw_scsi_realize; |
ccf6916c PB |
1467 | k->exit = virtio_ccw_exit; |
1468 | dc->reset = virtio_ccw_reset; | |
1469 | dc->props = vhost_ccw_scsi_properties; | |
cd20d616 | 1470 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
ccf6916c PB |
1471 | } |
1472 | ||
1473 | static const TypeInfo vhost_ccw_scsi = { | |
1474 | .name = TYPE_VHOST_SCSI_CCW, | |
1475 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
4b7757ba | 1476 | .instance_size = sizeof(VHostSCSICcw), |
ccf6916c PB |
1477 | .instance_init = vhost_ccw_scsi_instance_init, |
1478 | .class_init = vhost_ccw_scsi_class_init, | |
1479 | }; | |
1480 | #endif | |
1481 | ||
2db26d4c | 1482 | static void virtio_ccw_rng_instance_init(Object *obj) |
2362ecc5 | 1483 | { |
2db26d4c | 1484 | VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj); |
c8075caf GA |
1485 | |
1486 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1487 | TYPE_VIRTIO_RNG); | |
cbd5ac69 PB |
1488 | object_property_add_alias(obj, "rng", OBJECT(&dev->vdev), |
1489 | "rng", &error_abort); | |
2362ecc5 CH |
1490 | } |
1491 | ||
1492 | static Property virtio_ccw_rng_properties[] = { | |
b804e8a6 | 1493 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1494 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1495 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1496 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1497 | VIRTIO_CCW_MAX_REV), | |
2362ecc5 CH |
1498 | DEFINE_PROP_END_OF_LIST(), |
1499 | }; | |
1500 | ||
1501 | static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data) | |
1502 | { | |
1503 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1504 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1505 | ||
5e5ced38 | 1506 | k->realize = virtio_ccw_rng_realize; |
2db26d4c | 1507 | k->exit = virtio_ccw_exit; |
2362ecc5 CH |
1508 | dc->reset = virtio_ccw_reset; |
1509 | dc->props = virtio_ccw_rng_properties; | |
cd20d616 | 1510 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
2362ecc5 CH |
1511 | } |
1512 | ||
1513 | static const TypeInfo virtio_ccw_rng = { | |
2db26d4c | 1514 | .name = TYPE_VIRTIO_RNG_CCW, |
2362ecc5 | 1515 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
2db26d4c FK |
1516 | .instance_size = sizeof(VirtIORNGCcw), |
1517 | .instance_init = virtio_ccw_rng_instance_init, | |
2362ecc5 CH |
1518 | .class_init = virtio_ccw_rng_class_init, |
1519 | }; | |
1520 | ||
5e5ced38 | 1521 | static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp) |
a5cf2bb4 CH |
1522 | { |
1523 | VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; | |
a5cf2bb4 | 1524 | |
1bf4d7aa | 1525 | virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev); |
1fa75523 | 1526 | virtio_ccw_device_realize(_dev, errp); |
a5cf2bb4 CH |
1527 | } |
1528 | ||
1529 | static int virtio_ccw_busdev_exit(DeviceState *dev) | |
1530 | { | |
1531 | VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; | |
1532 | VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev); | |
1533 | ||
1534 | return _info->exit(_dev); | |
1535 | } | |
1536 | ||
b804e8a6 JL |
1537 | static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev, |
1538 | DeviceState *dev, Error **errp) | |
a5cf2bb4 | 1539 | { |
b804e8a6 | 1540 | VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev); |
a5cf2bb4 | 1541 | |
0b81c1ef | 1542 | virtio_ccw_stop_ioeventfd(_dev); |
a5cf2bb4 CH |
1543 | } |
1544 | ||
1545 | static void virtio_ccw_device_class_init(ObjectClass *klass, void *data) | |
1546 | { | |
1547 | DeviceClass *dc = DEVICE_CLASS(klass); | |
b804e8a6 | 1548 | CCWDeviceClass *k = CCW_DEVICE_CLASS(dc); |
a5cf2bb4 | 1549 | |
b804e8a6 | 1550 | k->unplug = virtio_ccw_busdev_unplug; |
5e5ced38 | 1551 | dc->realize = virtio_ccw_busdev_realize; |
a5cf2bb4 | 1552 | dc->exit = virtio_ccw_busdev_exit; |
a5cf2bb4 | 1553 | dc->bus_type = TYPE_VIRTUAL_CSS_BUS; |
a5cf2bb4 CH |
1554 | } |
1555 | ||
1556 | static const TypeInfo virtio_ccw_device_info = { | |
1557 | .name = TYPE_VIRTIO_CCW_DEVICE, | |
b804e8a6 | 1558 | .parent = TYPE_CCW_DEVICE, |
a5cf2bb4 CH |
1559 | .instance_size = sizeof(VirtioCcwDevice), |
1560 | .class_init = virtio_ccw_device_class_init, | |
1561 | .class_size = sizeof(VirtIOCCWDeviceClass), | |
1562 | .abstract = true, | |
1563 | }; | |
1564 | ||
a5cf2bb4 CH |
1565 | /* virtio-ccw-bus */ |
1566 | ||
1bf4d7aa AF |
1567 | static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, |
1568 | VirtioCcwDevice *dev) | |
a5cf2bb4 CH |
1569 | { |
1570 | DeviceState *qdev = DEVICE(dev); | |
f4dd69aa | 1571 | char virtio_bus_name[] = "virtio-bus"; |
a5cf2bb4 | 1572 | |
fb17dfe0 AF |
1573 | qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS, |
1574 | qdev, virtio_bus_name); | |
a5cf2bb4 CH |
1575 | } |
1576 | ||
1577 | static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data) | |
1578 | { | |
1579 | VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); | |
1580 | BusClass *bus_class = BUS_CLASS(klass); | |
1581 | ||
1582 | bus_class->max_dev = 1; | |
1583 | k->notify = virtio_ccw_notify; | |
b4436a0b | 1584 | k->vmstate_change = virtio_ccw_vmstate_change; |
320ce850 | 1585 | k->query_guest_notifiers = virtio_ccw_query_guest_notifiers; |
320ce850 | 1586 | k->set_guest_notifiers = virtio_ccw_set_guest_notifiers; |
bcb2b582 JF |
1587 | k->save_queue = virtio_ccw_save_queue; |
1588 | k->load_queue = virtio_ccw_load_queue; | |
1589 | k->save_config = virtio_ccw_save_config; | |
1590 | k->load_config = virtio_ccw_load_config; | |
d1b4259f | 1591 | k->pre_plugged = virtio_ccw_pre_plugged; |
fb846a09 CH |
1592 | k->device_plugged = virtio_ccw_device_plugged; |
1593 | k->device_unplugged = virtio_ccw_device_unplugged; | |
8e93cef1 | 1594 | k->ioeventfd_enabled = virtio_ccw_ioeventfd_enabled; |
7c55f68a | 1595 | k->ioeventfd_assign = virtio_ccw_ioeventfd_assign; |
a5cf2bb4 CH |
1596 | } |
1597 | ||
1598 | static const TypeInfo virtio_ccw_bus_info = { | |
1599 | .name = TYPE_VIRTIO_CCW_BUS, | |
1600 | .parent = TYPE_VIRTIO_BUS, | |
1601 | .instance_size = sizeof(VirtioCcwBusState), | |
1602 | .class_init = virtio_ccw_bus_class_init, | |
1603 | }; | |
1604 | ||
de6a9218 PM |
1605 | #ifdef CONFIG_VIRTFS |
1606 | static Property virtio_ccw_9p_properties[] = { | |
b804e8a6 | 1607 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
de6a9218 PM |
1608 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1609 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1610 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1611 | VIRTIO_CCW_MAX_REV), | |
de6a9218 PM |
1612 | DEFINE_PROP_END_OF_LIST(), |
1613 | }; | |
1614 | ||
1615 | static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp) | |
1616 | { | |
1617 | V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev); | |
1618 | DeviceState *vdev = DEVICE(&dev->vdev); | |
de6a9218 PM |
1619 | |
1620 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
6b62d961 | 1621 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
de6a9218 PM |
1622 | } |
1623 | ||
1624 | static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data) | |
1625 | { | |
1626 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1627 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1628 | ||
1629 | k->exit = virtio_ccw_exit; | |
1630 | k->realize = virtio_ccw_9p_realize; | |
1631 | dc->reset = virtio_ccw_reset; | |
1632 | dc->props = virtio_ccw_9p_properties; | |
1633 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); | |
1634 | } | |
1635 | ||
1636 | static void virtio_ccw_9p_instance_init(Object *obj) | |
1637 | { | |
1638 | V9fsCCWState *dev = VIRTIO_9P_CCW(obj); | |
1639 | ||
1640 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1641 | TYPE_VIRTIO_9P); | |
1642 | } | |
1643 | ||
1644 | static const TypeInfo virtio_ccw_9p_info = { | |
1645 | .name = TYPE_VIRTIO_9P_CCW, | |
1646 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
1647 | .instance_size = sizeof(V9fsCCWState), | |
1648 | .instance_init = virtio_ccw_9p_instance_init, | |
1649 | .class_init = virtio_ccw_9p_class_init, | |
1650 | }; | |
1651 | #endif | |
1652 | ||
fc0b9b0e SH |
1653 | #ifdef CONFIG_VHOST_VSOCK |
1654 | ||
1655 | static Property vhost_vsock_ccw_properties[] = { | |
1656 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), | |
1657 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, | |
1658 | VIRTIO_CCW_MAX_REV), | |
1659 | DEFINE_PROP_END_OF_LIST(), | |
1660 | }; | |
1661 | ||
1662 | static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp) | |
1663 | { | |
1664 | VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev); | |
1665 | DeviceState *vdev = DEVICE(&dev->vdev); | |
1666 | Error *err = NULL; | |
1667 | ||
1668 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
1669 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); | |
1670 | if (err) { | |
1671 | error_propagate(errp, err); | |
1672 | } | |
1673 | } | |
1674 | ||
1675 | static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data) | |
1676 | { | |
1677 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1678 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1679 | ||
1680 | k->realize = vhost_vsock_ccw_realize; | |
1681 | k->exit = virtio_ccw_exit; | |
1682 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); | |
1683 | dc->props = vhost_vsock_ccw_properties; | |
1684 | dc->reset = virtio_ccw_reset; | |
1685 | } | |
1686 | ||
1687 | static void vhost_vsock_ccw_instance_init(Object *obj) | |
1688 | { | |
1689 | VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj); | |
1690 | ||
1691 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1692 | TYPE_VHOST_VSOCK); | |
1693 | } | |
1694 | ||
1695 | static const TypeInfo vhost_vsock_ccw_info = { | |
1696 | .name = TYPE_VHOST_VSOCK_CCW, | |
1697 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
1698 | .instance_size = sizeof(VHostVSockCCWState), | |
1699 | .instance_init = vhost_vsock_ccw_instance_init, | |
1700 | .class_init = vhost_vsock_ccw_class_init, | |
1701 | }; | |
1702 | #endif | |
1703 | ||
a5cf2bb4 CH |
1704 | static void virtio_ccw_register(void) |
1705 | { | |
1706 | type_register_static(&virtio_ccw_bus_info); | |
a5cf2bb4 CH |
1707 | type_register_static(&virtio_ccw_device_info); |
1708 | type_register_static(&virtio_ccw_serial); | |
1709 | type_register_static(&virtio_ccw_blk); | |
1710 | type_register_static(&virtio_ccw_net); | |
1711 | type_register_static(&virtio_ccw_balloon); | |
1712 | type_register_static(&virtio_ccw_scsi); | |
b702d2ae | 1713 | #ifdef CONFIG_VHOST_SCSI |
ccf6916c | 1714 | type_register_static(&vhost_ccw_scsi); |
b702d2ae | 1715 | #endif |
2362ecc5 | 1716 | type_register_static(&virtio_ccw_rng); |
de6a9218 PM |
1717 | #ifdef CONFIG_VIRTFS |
1718 | type_register_static(&virtio_ccw_9p_info); | |
1719 | #endif | |
fc0b9b0e SH |
1720 | #ifdef CONFIG_VHOST_VSOCK |
1721 | type_register_static(&vhost_vsock_ccw_info); | |
1722 | #endif | |
a5cf2bb4 CH |
1723 | } |
1724 | ||
1725 | type_init(virtio_ccw_register) |