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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. */ | |
8c797e75 | 152 | if (virtio_queue_get_max_num(vdev, index) < num) { |
79cd0c80 CH |
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 | ||
47e13dfd HP |
283 | if (dev->force_revision_1 && dev->revision < 0 && |
284 | ccw.cmd_code != CCW_CMD_SET_VIRTIO_REV) { | |
285 | /* | |
286 | * virtio-1 drivers must start with negotiating to a revision >= 1, | |
287 | * so post a command reject for all other commands | |
288 | */ | |
289 | return -ENOSYS; | |
290 | } | |
291 | ||
a5cf2bb4 CH |
292 | /* Look at the command. */ |
293 | switch (ccw.cmd_code) { | |
294 | case CCW_CMD_SET_VQ: | |
0db87e0d | 295 | ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1); |
a5cf2bb4 CH |
296 | break; |
297 | case CCW_CMD_VDEV_RESET: | |
fa8b0ca5 | 298 | virtio_ccw_reset_virtio(dev, vdev); |
a5cf2bb4 CH |
299 | ret = 0; |
300 | break; | |
301 | case CCW_CMD_READ_FEAT: | |
302 | if (check_len) { | |
303 | if (ccw.count != sizeof(features)) { | |
304 | ret = -EINVAL; | |
305 | break; | |
306 | } | |
307 | } else if (ccw.count < sizeof(features)) { | |
308 | /* Can't execute command. */ | |
309 | ret = -EINVAL; | |
310 | break; | |
311 | } | |
312 | if (!ccw.cda) { | |
313 | ret = -EFAULT; | |
314 | } else { | |
9b706dbb MT |
315 | VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); |
316 | ||
42874d3a PM |
317 | features.index = address_space_ldub(&address_space_memory, |
318 | ccw.cda | |
319 | + sizeof(features.features), | |
320 | MEMTXATTRS_UNSPECIFIED, | |
321 | NULL); | |
6b8f1020 | 322 | if (features.index == 0) { |
542571d5 CH |
323 | if (dev->revision >= 1) { |
324 | /* Don't offer legacy features for modern devices. */ | |
325 | features.features = (uint32_t) | |
9b706dbb | 326 | (vdev->host_features & ~vdc->legacy_features); |
542571d5 CH |
327 | } else { |
328 | features.features = (uint32_t)vdev->host_features; | |
329 | } | |
b4f8f9df | 330 | } else if ((features.index == 1) && (dev->revision >= 1)) { |
c42767f2 | 331 | /* |
b4f8f9df CH |
332 | * Only offer feature bits beyond 31 if the guest has |
333 | * negotiated at least revision 1. | |
c42767f2 | 334 | */ |
b4f8f9df | 335 | features.features = (uint32_t)(vdev->host_features >> 32); |
a5cf2bb4 CH |
336 | } else { |
337 | /* Return zeroes if the guest supports more feature bits. */ | |
338 | features.features = 0; | |
339 | } | |
42874d3a PM |
340 | address_space_stl_le(&address_space_memory, ccw.cda, |
341 | features.features, MEMTXATTRS_UNSPECIFIED, | |
342 | NULL); | |
a5cf2bb4 CH |
343 | sch->curr_status.scsw.count = ccw.count - sizeof(features); |
344 | ret = 0; | |
345 | } | |
346 | break; | |
347 | case CCW_CMD_WRITE_FEAT: | |
348 | if (check_len) { | |
349 | if (ccw.count != sizeof(features)) { | |
350 | ret = -EINVAL; | |
351 | break; | |
352 | } | |
353 | } else if (ccw.count < sizeof(features)) { | |
354 | /* Can't execute command. */ | |
355 | ret = -EINVAL; | |
356 | break; | |
357 | } | |
358 | if (!ccw.cda) { | |
359 | ret = -EFAULT; | |
360 | } else { | |
42874d3a PM |
361 | features.index = address_space_ldub(&address_space_memory, |
362 | ccw.cda | |
363 | + sizeof(features.features), | |
364 | MEMTXATTRS_UNSPECIFIED, | |
365 | NULL); | |
366 | features.features = address_space_ldl_le(&address_space_memory, | |
367 | ccw.cda, | |
368 | MEMTXATTRS_UNSPECIFIED, | |
369 | NULL); | |
6b8f1020 | 370 | if (features.index == 0) { |
c42767f2 TH |
371 | virtio_set_features(vdev, |
372 | (vdev->guest_features & 0xffffffff00000000ULL) | | |
373 | features.features); | |
b4f8f9df | 374 | } else if ((features.index == 1) && (dev->revision >= 1)) { |
c42767f2 | 375 | /* |
b4f8f9df CH |
376 | * If the guest did not negotiate at least revision 1, |
377 | * we did not offer it any feature bits beyond 31. Such a | |
378 | * guest passing us any bit here is therefore buggy. | |
c42767f2 | 379 | */ |
c42767f2 TH |
380 | virtio_set_features(vdev, |
381 | (vdev->guest_features & 0x00000000ffffffffULL) | | |
382 | ((uint64_t)features.features << 32)); | |
a5cf2bb4 CH |
383 | } else { |
384 | /* | |
385 | * If the guest supports more feature bits, assert that it | |
386 | * passes us zeroes for those we don't support. | |
387 | */ | |
388 | if (features.features) { | |
389 | fprintf(stderr, "Guest bug: features[%i]=%x (expected 0)\n", | |
390 | features.index, features.features); | |
391 | /* XXX: do a unit check here? */ | |
392 | } | |
393 | } | |
394 | sch->curr_status.scsw.count = ccw.count - sizeof(features); | |
395 | ret = 0; | |
396 | } | |
397 | break; | |
398 | case CCW_CMD_READ_CONF: | |
399 | if (check_len) { | |
f24a6840 | 400 | if (ccw.count > vdev->config_len) { |
a5cf2bb4 CH |
401 | ret = -EINVAL; |
402 | break; | |
403 | } | |
404 | } | |
f24a6840 | 405 | len = MIN(ccw.count, vdev->config_len); |
a5cf2bb4 CH |
406 | if (!ccw.cda) { |
407 | ret = -EFAULT; | |
408 | } else { | |
f24a6840 | 409 | virtio_bus_get_vdev_config(&dev->bus, vdev->config); |
a5cf2bb4 | 410 | /* XXX config space endianness */ |
f24a6840 | 411 | cpu_physical_memory_write(ccw.cda, vdev->config, len); |
a5cf2bb4 CH |
412 | sch->curr_status.scsw.count = ccw.count - len; |
413 | ret = 0; | |
414 | } | |
415 | break; | |
416 | case CCW_CMD_WRITE_CONF: | |
417 | if (check_len) { | |
f24a6840 | 418 | if (ccw.count > vdev->config_len) { |
a5cf2bb4 CH |
419 | ret = -EINVAL; |
420 | break; | |
421 | } | |
422 | } | |
f24a6840 | 423 | len = MIN(ccw.count, vdev->config_len); |
a5cf2bb4 CH |
424 | hw_len = len; |
425 | if (!ccw.cda) { | |
426 | ret = -EFAULT; | |
427 | } else { | |
428 | config = cpu_physical_memory_map(ccw.cda, &hw_len, 0); | |
429 | if (!config) { | |
430 | ret = -EFAULT; | |
431 | } else { | |
432 | len = hw_len; | |
433 | /* XXX config space endianness */ | |
f24a6840 | 434 | memcpy(vdev->config, config, len); |
a5cf2bb4 | 435 | cpu_physical_memory_unmap(config, hw_len, 0, hw_len); |
f24a6840 | 436 | virtio_bus_set_vdev_config(&dev->bus, vdev->config); |
a5cf2bb4 CH |
437 | sch->curr_status.scsw.count = ccw.count - len; |
438 | ret = 0; | |
439 | } | |
440 | } | |
441 | break; | |
e32652f7 PM |
442 | case CCW_CMD_READ_STATUS: |
443 | if (check_len) { | |
444 | if (ccw.count != sizeof(status)) { | |
445 | ret = -EINVAL; | |
446 | break; | |
447 | } | |
448 | } else if (ccw.count < sizeof(status)) { | |
449 | /* Can't execute command. */ | |
450 | ret = -EINVAL; | |
451 | break; | |
452 | } | |
453 | if (!ccw.cda) { | |
454 | ret = -EFAULT; | |
455 | } else { | |
456 | address_space_stb(&address_space_memory, ccw.cda, vdev->status, | |
457 | MEMTXATTRS_UNSPECIFIED, NULL); | |
458 | sch->curr_status.scsw.count = ccw.count - sizeof(vdev->status);; | |
459 | ret = 0; | |
460 | } | |
461 | break; | |
a5cf2bb4 CH |
462 | case CCW_CMD_WRITE_STATUS: |
463 | if (check_len) { | |
464 | if (ccw.count != sizeof(status)) { | |
465 | ret = -EINVAL; | |
466 | break; | |
467 | } | |
468 | } else if (ccw.count < sizeof(status)) { | |
469 | /* Can't execute command. */ | |
470 | ret = -EINVAL; | |
471 | break; | |
472 | } | |
473 | if (!ccw.cda) { | |
474 | ret = -EFAULT; | |
475 | } else { | |
42874d3a PM |
476 | status = address_space_ldub(&address_space_memory, ccw.cda, |
477 | MEMTXATTRS_UNSPECIFIED, NULL); | |
b4436a0b CH |
478 | if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) { |
479 | virtio_ccw_stop_ioeventfd(dev); | |
480 | } | |
0b352fd6 CH |
481 | if (virtio_set_status(vdev, status) == 0) { |
482 | if (vdev->status == 0) { | |
fa8b0ca5 | 483 | virtio_ccw_reset_virtio(dev, vdev); |
0b352fd6 CH |
484 | } |
485 | if (status & VIRTIO_CONFIG_S_DRIVER_OK) { | |
486 | virtio_ccw_start_ioeventfd(dev); | |
487 | } | |
488 | sch->curr_status.scsw.count = ccw.count - sizeof(status); | |
489 | ret = 0; | |
490 | } else { | |
491 | /* Trigger a command reject. */ | |
492 | ret = -ENOSYS; | |
b4436a0b | 493 | } |
a5cf2bb4 CH |
494 | } |
495 | break; | |
496 | case CCW_CMD_SET_IND: | |
497 | if (check_len) { | |
498 | if (ccw.count != sizeof(indicators)) { | |
499 | ret = -EINVAL; | |
500 | break; | |
501 | } | |
502 | } else if (ccw.count < sizeof(indicators)) { | |
503 | /* Can't execute command. */ | |
504 | ret = -EINVAL; | |
505 | break; | |
506 | } | |
7e749462 CH |
507 | if (sch->thinint_active) { |
508 | /* Trigger a command reject. */ | |
509 | ret = -ENOSYS; | |
510 | break; | |
511 | } | |
d1db1fa8 | 512 | if (!ccw.cda) { |
a5cf2bb4 CH |
513 | ret = -EFAULT; |
514 | } else { | |
42874d3a PM |
515 | indicators = address_space_ldq_be(&address_space_memory, ccw.cda, |
516 | MEMTXATTRS_UNSPECIFIED, NULL); | |
7bca3892 | 517 | dev->indicators = get_indicator(indicators, sizeof(uint64_t)); |
a5cf2bb4 CH |
518 | sch->curr_status.scsw.count = ccw.count - sizeof(indicators); |
519 | ret = 0; | |
520 | } | |
521 | break; | |
522 | case CCW_CMD_SET_CONF_IND: | |
523 | if (check_len) { | |
524 | if (ccw.count != sizeof(indicators)) { | |
525 | ret = -EINVAL; | |
526 | break; | |
527 | } | |
528 | } else if (ccw.count < sizeof(indicators)) { | |
529 | /* Can't execute command. */ | |
530 | ret = -EINVAL; | |
531 | break; | |
532 | } | |
d1db1fa8 | 533 | if (!ccw.cda) { |
a5cf2bb4 CH |
534 | ret = -EFAULT; |
535 | } else { | |
42874d3a PM |
536 | indicators = address_space_ldq_be(&address_space_memory, ccw.cda, |
537 | MEMTXATTRS_UNSPECIFIED, NULL); | |
7bca3892 | 538 | dev->indicators2 = get_indicator(indicators, sizeof(uint64_t)); |
a5cf2bb4 CH |
539 | sch->curr_status.scsw.count = ccw.count - sizeof(indicators); |
540 | ret = 0; | |
541 | } | |
542 | break; | |
543 | case CCW_CMD_READ_VQ_CONF: | |
544 | if (check_len) { | |
545 | if (ccw.count != sizeof(vq_config)) { | |
546 | ret = -EINVAL; | |
547 | break; | |
548 | } | |
549 | } else if (ccw.count < sizeof(vq_config)) { | |
550 | /* Can't execute command. */ | |
551 | ret = -EINVAL; | |
552 | break; | |
553 | } | |
554 | if (!ccw.cda) { | |
555 | ret = -EFAULT; | |
556 | } else { | |
42874d3a PM |
557 | vq_config.index = address_space_lduw_be(&address_space_memory, |
558 | ccw.cda, | |
559 | MEMTXATTRS_UNSPECIFIED, | |
560 | NULL); | |
8dfbaa6a | 561 | if (vq_config.index >= VIRTIO_CCW_QUEUE_MAX) { |
d03a3630 CH |
562 | ret = -EINVAL; |
563 | break; | |
564 | } | |
f24a6840 | 565 | vq_config.num_max = virtio_queue_get_num(vdev, |
a5cf2bb4 | 566 | vq_config.index); |
42874d3a PM |
567 | address_space_stw_be(&address_space_memory, |
568 | ccw.cda + sizeof(vq_config.index), | |
569 | vq_config.num_max, | |
570 | MEMTXATTRS_UNSPECIFIED, | |
571 | NULL); | |
a5cf2bb4 CH |
572 | sch->curr_status.scsw.count = ccw.count - sizeof(vq_config); |
573 | ret = 0; | |
574 | } | |
575 | break; | |
7e749462 CH |
576 | case CCW_CMD_SET_IND_ADAPTER: |
577 | if (check_len) { | |
578 | if (ccw.count != sizeof(*thinint)) { | |
579 | ret = -EINVAL; | |
580 | break; | |
581 | } | |
582 | } else if (ccw.count < sizeof(*thinint)) { | |
583 | /* Can't execute command. */ | |
584 | ret = -EINVAL; | |
585 | break; | |
586 | } | |
587 | len = sizeof(*thinint); | |
588 | hw_len = len; | |
589 | if (!ccw.cda) { | |
590 | ret = -EFAULT; | |
591 | } else if (dev->indicators && !sch->thinint_active) { | |
592 | /* Trigger a command reject. */ | |
593 | ret = -ENOSYS; | |
594 | } else { | |
595 | thinint = cpu_physical_memory_map(ccw.cda, &hw_len, 0); | |
596 | if (!thinint) { | |
597 | ret = -EFAULT; | |
598 | } else { | |
7d45285f CH |
599 | uint64_t ind_bit = ldq_be_p(&thinint->ind_bit); |
600 | ||
7e749462 | 601 | len = hw_len; |
7bca3892 | 602 | dev->summary_indicator = |
7d45285f CH |
603 | get_indicator(ldq_be_p(&thinint->summary_indicator), |
604 | sizeof(uint8_t)); | |
605 | dev->indicators = | |
606 | get_indicator(ldq_be_p(&thinint->device_indicator), | |
607 | ind_bit / 8 + 1); | |
7e749462 | 608 | dev->thinint_isc = thinint->isc; |
7d45285f | 609 | dev->routes.adapter.ind_offset = ind_bit; |
d426d9fb | 610 | dev->routes.adapter.summary_offset = 7; |
7e749462 | 611 | cpu_physical_memory_unmap(thinint, hw_len, 0, hw_len); |
03cf077a CH |
612 | ret = css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO, |
613 | dev->thinint_isc, true, false, | |
d426d9fb | 614 | &dev->routes.adapter.adapter_id); |
03cf077a | 615 | assert(ret == 0); |
7bca3892 CH |
616 | sch->thinint_active = ((dev->indicators != NULL) && |
617 | (dev->summary_indicator != NULL)); | |
7e749462 CH |
618 | sch->curr_status.scsw.count = ccw.count - len; |
619 | ret = 0; | |
620 | } | |
621 | } | |
622 | break; | |
c42767f2 TH |
623 | case CCW_CMD_SET_VIRTIO_REV: |
624 | len = sizeof(revinfo); | |
625 | if (ccw.count < len) { | |
626 | ret = -EINVAL; | |
627 | break; | |
628 | } | |
629 | if (!ccw.cda) { | |
630 | ret = -EFAULT; | |
631 | break; | |
632 | } | |
633 | revinfo.revision = | |
634 | address_space_lduw_be(&address_space_memory, ccw.cda, | |
635 | MEMTXATTRS_UNSPECIFIED, NULL); | |
636 | revinfo.length = | |
637 | address_space_lduw_be(&address_space_memory, | |
638 | ccw.cda + sizeof(revinfo.revision), | |
639 | MEMTXATTRS_UNSPECIFIED, NULL); | |
640 | if (ccw.count < len + revinfo.length || | |
641 | (check_len && ccw.count > len + revinfo.length)) { | |
642 | ret = -EINVAL; | |
643 | break; | |
644 | } | |
645 | /* | |
646 | * Once we start to support revisions with additional data, we'll | |
647 | * need to fetch it here. Nothing to do for now, though. | |
648 | */ | |
649 | if (dev->revision >= 0 || | |
47e13dfd HP |
650 | revinfo.revision > virtio_ccw_rev_max(dev) || |
651 | (dev->force_revision_1 && !revinfo.revision)) { | |
c42767f2 TH |
652 | ret = -ENOSYS; |
653 | break; | |
654 | } | |
655 | ret = 0; | |
656 | dev->revision = revinfo.revision; | |
657 | break; | |
a5cf2bb4 | 658 | default: |
8d034a6f | 659 | ret = -ENOSYS; |
a5cf2bb4 CH |
660 | break; |
661 | } | |
662 | return ret; | |
663 | } | |
664 | ||
c42767f2 TH |
665 | static void virtio_sch_disable_cb(SubchDev *sch) |
666 | { | |
667 | VirtioCcwDevice *dev = sch->driver_data; | |
668 | ||
669 | dev->revision = -1; | |
670 | } | |
671 | ||
1fa75523 | 672 | static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp) |
a5cf2bb4 | 673 | { |
1fa75523 | 674 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev); |
b804e8a6 JL |
675 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
676 | SubchDev *sch = css_create_virtual_sch(ccw_dev->bus_id, errp); | |
cf249935 | 677 | Error *err = NULL; |
a5cf2bb4 | 678 | |
cf249935 SS |
679 | if (!sch) { |
680 | return; | |
a5cf2bb4 | 681 | } |
47e13dfd HP |
682 | if (!virtio_ccw_rev_max(dev) && dev->force_revision_1) { |
683 | error_setg(&err, "Invalid value of property max_rev " | |
684 | "(is %d expected >= 1)", virtio_ccw_rev_max(dev)); | |
685 | error_propagate(errp, err); | |
686 | return; | |
687 | } | |
a5cf2bb4 | 688 | |
cf249935 | 689 | sch->driver_data = dev; |
a5cf2bb4 | 690 | sch->ccw_cb = virtio_ccw_cb; |
c42767f2 | 691 | sch->disable_cb = virtio_sch_disable_cb; |
a5cf2bb4 CH |
692 | sch->id.reserved = 0xff; |
693 | sch->id.cu_type = VIRTIO_CCW_CU_TYPE; | |
b804e8a6 | 694 | ccw_dev->sch = sch; |
cf249935 | 695 | dev->indicators = NULL; |
c42767f2 | 696 | dev->revision = -1; |
cf249935 SS |
697 | css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE); |
698 | ||
699 | trace_virtio_ccw_new_device( | |
700 | sch->cssid, sch->ssid, sch->schid, sch->devno, | |
b804e8a6 | 701 | ccw_dev->bus_id.valid ? "user-configured" : "auto-configured"); |
c42767f2 | 702 | |
ca2b413c PB |
703 | if (!kvm_eventfds_enabled()) { |
704 | dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD; | |
705 | } | |
706 | ||
1fa75523 CH |
707 | if (k->realize) { |
708 | k->realize(dev, &err); | |
709 | } | |
710 | if (err) { | |
711 | error_propagate(errp, err); | |
06e686ea | 712 | css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); |
b804e8a6 | 713 | ccw_dev->sch = NULL; |
cf249935 | 714 | g_free(sch); |
1fa75523 | 715 | } |
a5cf2bb4 CH |
716 | } |
717 | ||
718 | static int virtio_ccw_exit(VirtioCcwDevice *dev) | |
719 | { | |
b804e8a6 JL |
720 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
721 | SubchDev *sch = ccw_dev->sch; | |
a5cf2bb4 CH |
722 | |
723 | if (sch) { | |
724 | css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); | |
725 | g_free(sch); | |
726 | } | |
7bca3892 | 727 | if (dev->indicators) { |
d426d9fb | 728 | release_indicator(&dev->routes.adapter, dev->indicators); |
7bca3892 CH |
729 | dev->indicators = NULL; |
730 | } | |
a5cf2bb4 CH |
731 | return 0; |
732 | } | |
733 | ||
5e5ced38 | 734 | static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 735 | { |
800ced8c | 736 | DeviceState *qdev = DEVICE(ccw_dev); |
89334c8b FK |
737 | VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev); |
738 | DeviceState *vdev = DEVICE(&dev->vdev); | |
a5cf2bb4 | 739 | |
800ced8c FK |
740 | virtio_net_set_netclient_name(&dev->vdev, qdev->id, |
741 | object_get_typename(OBJECT(qdev))); | |
89334c8b | 742 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 743 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
744 | } |
745 | ||
89334c8b | 746 | static void virtio_ccw_net_instance_init(Object *obj) |
a5cf2bb4 | 747 | { |
89334c8b | 748 | VirtIONetCcw *dev = VIRTIO_NET_CCW(obj); |
c8075caf GA |
749 | |
750 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
751 | TYPE_VIRTIO_NET); | |
0cf63c3e GA |
752 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
753 | "bootindex", &error_abort); | |
a5cf2bb4 CH |
754 | } |
755 | ||
5e5ced38 | 756 | static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 757 | { |
3400c455 FK |
758 | VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev); |
759 | DeviceState *vdev = DEVICE(&dev->vdev); | |
5e5ced38 | 760 | |
3400c455 | 761 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 762 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
763 | } |
764 | ||
3400c455 | 765 | static void virtio_ccw_blk_instance_init(Object *obj) |
a5cf2bb4 | 766 | { |
3400c455 | 767 | VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj); |
c8075caf GA |
768 | |
769 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
770 | TYPE_VIRTIO_BLK); | |
467b3f33 SH |
771 | object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread", |
772 | &error_abort); | |
aeb98ddc GA |
773 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
774 | "bootindex", &error_abort); | |
a5cf2bb4 CH |
775 | } |
776 | ||
5e5ced38 | 777 | static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 778 | { |
6acf69cd FK |
779 | VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev); |
780 | DeviceState *vdev = DEVICE(&dev->vdev); | |
80270a19 FK |
781 | DeviceState *proxy = DEVICE(ccw_dev); |
782 | char *bus_name; | |
783 | ||
784 | /* | |
785 | * For command line compatibility, this sets the virtio-serial-device bus | |
786 | * name as before. | |
787 | */ | |
788 | if (proxy->id) { | |
789 | bus_name = g_strdup_printf("%s.0", proxy->id); | |
790 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
791 | g_free(bus_name); | |
792 | } | |
a5cf2bb4 | 793 | |
6acf69cd | 794 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 795 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
796 | } |
797 | ||
6acf69cd FK |
798 | |
799 | static void virtio_ccw_serial_instance_init(Object *obj) | |
a5cf2bb4 | 800 | { |
6acf69cd | 801 | VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj); |
c8075caf GA |
802 | |
803 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
804 | TYPE_VIRTIO_SERIAL); | |
a5cf2bb4 CH |
805 | } |
806 | ||
5e5ced38 | 807 | static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 808 | { |
30bff6a0 FK |
809 | VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev); |
810 | DeviceState *vdev = DEVICE(&dev->vdev); | |
a5cf2bb4 | 811 | |
30bff6a0 | 812 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 813 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
814 | } |
815 | ||
30bff6a0 | 816 | static void virtio_ccw_balloon_instance_init(Object *obj) |
a5cf2bb4 | 817 | { |
30bff6a0 | 818 | VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj); |
ecfa60e3 | 819 | |
a6027b0f DL |
820 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
821 | TYPE_VIRTIO_BALLOON); | |
ecfa60e3 SZ |
822 | object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), |
823 | "guest-stats", &error_abort); | |
824 | object_property_add_alias(obj, "guest-stats-polling-interval", | |
825 | OBJECT(&dev->vdev), | |
826 | "guest-stats-polling-interval", &error_abort); | |
a5cf2bb4 CH |
827 | } |
828 | ||
5e5ced38 | 829 | static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 830 | { |
c908ea10 FK |
831 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev); |
832 | DeviceState *vdev = DEVICE(&dev->vdev); | |
6f32a6b4 FK |
833 | DeviceState *qdev = DEVICE(ccw_dev); |
834 | char *bus_name; | |
835 | ||
836 | /* | |
837 | * For command line compatibility, this sets the virtio-scsi-device bus | |
838 | * name as before. | |
839 | */ | |
840 | if (qdev->id) { | |
841 | bus_name = g_strdup_printf("%s.0", qdev->id); | |
842 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
843 | g_free(bus_name); | |
844 | } | |
a5cf2bb4 | 845 | |
c908ea10 | 846 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 847 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
848 | } |
849 | ||
c908ea10 | 850 | static void virtio_ccw_scsi_instance_init(Object *obj) |
a5cf2bb4 | 851 | { |
c908ea10 | 852 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj); |
c8075caf GA |
853 | |
854 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
855 | TYPE_VIRTIO_SCSI); | |
19d339f1 FZ |
856 | object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev), "iothread", |
857 | &error_abort); | |
a5cf2bb4 CH |
858 | } |
859 | ||
ccf6916c | 860 | #ifdef CONFIG_VHOST_SCSI |
5e5ced38 | 861 | static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
ccf6916c PB |
862 | { |
863 | VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev); | |
864 | DeviceState *vdev = DEVICE(&dev->vdev); | |
865 | ||
866 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
6b62d961 | 867 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
ccf6916c PB |
868 | } |
869 | ||
870 | static void vhost_ccw_scsi_instance_init(Object *obj) | |
871 | { | |
872 | VHostSCSICcw *dev = VHOST_SCSI_CCW(obj); | |
c8075caf GA |
873 | |
874 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
875 | TYPE_VHOST_SCSI); | |
ccf6916c PB |
876 | } |
877 | #endif | |
878 | ||
5e5ced38 | 879 | static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
2362ecc5 | 880 | { |
2db26d4c FK |
881 | VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev); |
882 | DeviceState *vdev = DEVICE(&dev->vdev); | |
5e5ced38 | 883 | Error *err = NULL; |
2362ecc5 | 884 | |
2db26d4c | 885 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
5e5ced38 MA |
886 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); |
887 | if (err) { | |
888 | error_propagate(errp, err); | |
889 | return; | |
2362ecc5 | 890 | } |
2362ecc5 | 891 | |
2db26d4c | 892 | object_property_set_link(OBJECT(dev), |
5b456438 | 893 | OBJECT(dev->vdev.conf.rng), "rng", |
2db26d4c | 894 | NULL); |
2362ecc5 CH |
895 | } |
896 | ||
a5cf2bb4 CH |
897 | /* DeviceState to VirtioCcwDevice. Note: used on datapath, |
898 | * be careful and test performance if you change this. | |
899 | */ | |
900 | static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d) | |
901 | { | |
b804e8a6 JL |
902 | CcwDevice *ccw_dev = to_ccw_dev_fast(d); |
903 | ||
904 | return container_of(ccw_dev, VirtioCcwDevice, parent_obj); | |
a5cf2bb4 CH |
905 | } |
906 | ||
7e749462 CH |
907 | static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc, |
908 | uint8_t to_be_set) | |
909 | { | |
910 | uint8_t ind_old, ind_new; | |
911 | hwaddr len = 1; | |
912 | uint8_t *ind_addr; | |
913 | ||
914 | ind_addr = cpu_physical_memory_map(ind_loc, &len, 1); | |
915 | if (!ind_addr) { | |
916 | error_report("%s(%x.%x.%04x): unable to access indicator", | |
917 | __func__, sch->cssid, sch->ssid, sch->schid); | |
918 | return -1; | |
919 | } | |
920 | do { | |
921 | ind_old = *ind_addr; | |
922 | ind_new = ind_old | to_be_set; | |
923 | } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old); | |
06409bd9 | 924 | trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new); |
7e749462 CH |
925 | cpu_physical_memory_unmap(ind_addr, len, 1, len); |
926 | ||
927 | return ind_old; | |
928 | } | |
929 | ||
a5cf2bb4 CH |
930 | static void virtio_ccw_notify(DeviceState *d, uint16_t vector) |
931 | { | |
932 | VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d); | |
b804e8a6 JL |
933 | CcwDevice *ccw_dev = to_ccw_dev_fast(d); |
934 | SubchDev *sch = ccw_dev->sch; | |
a5cf2bb4 CH |
935 | uint64_t indicators; |
936 | ||
1789f4e3 HP |
937 | /* queue indicators + secondary indicators */ |
938 | if (vector >= VIRTIO_CCW_QUEUE_MAX + 64) { | |
a5cf2bb4 CH |
939 | return; |
940 | } | |
941 | ||
8dfbaa6a | 942 | if (vector < VIRTIO_CCW_QUEUE_MAX) { |
7c486976 CH |
943 | if (!dev->indicators) { |
944 | return; | |
945 | } | |
7e749462 CH |
946 | if (sch->thinint_active) { |
947 | /* | |
948 | * In the adapter interrupt case, indicators points to a | |
949 | * memory area that may be (way) larger than 64 bit and | |
950 | * ind_bit indicates the start of the indicators in a big | |
951 | * endian notation. | |
952 | */ | |
d426d9fb CH |
953 | uint64_t ind_bit = dev->routes.adapter.ind_offset; |
954 | ||
7bca3892 | 955 | virtio_set_ind_atomic(sch, dev->indicators->addr + |
d426d9fb CH |
956 | (ind_bit + vector) / 8, |
957 | 0x80 >> ((ind_bit + vector) % 8)); | |
7bca3892 | 958 | if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr, |
7e749462 CH |
959 | 0x01)) { |
960 | css_adapter_interrupt(dev->thinint_isc); | |
961 | } | |
962 | } else { | |
42874d3a PM |
963 | indicators = address_space_ldq(&address_space_memory, |
964 | dev->indicators->addr, | |
965 | MEMTXATTRS_UNSPECIFIED, | |
966 | NULL); | |
7e749462 | 967 | indicators |= 1ULL << vector; |
42874d3a PM |
968 | address_space_stq(&address_space_memory, dev->indicators->addr, |
969 | indicators, MEMTXATTRS_UNSPECIFIED, NULL); | |
7e749462 CH |
970 | css_conditional_io_interrupt(sch); |
971 | } | |
a5cf2bb4 | 972 | } else { |
7c486976 CH |
973 | if (!dev->indicators2) { |
974 | return; | |
975 | } | |
a5cf2bb4 | 976 | vector = 0; |
42874d3a PM |
977 | indicators = address_space_ldq(&address_space_memory, |
978 | dev->indicators2->addr, | |
979 | MEMTXATTRS_UNSPECIFIED, | |
980 | NULL); | |
19380b1b | 981 | indicators |= 1ULL << vector; |
42874d3a PM |
982 | address_space_stq(&address_space_memory, dev->indicators2->addr, |
983 | indicators, MEMTXATTRS_UNSPECIFIED, NULL); | |
7e749462 | 984 | css_conditional_io_interrupt(sch); |
a5cf2bb4 | 985 | } |
a5cf2bb4 CH |
986 | } |
987 | ||
a5cf2bb4 CH |
988 | static void virtio_ccw_reset(DeviceState *d) |
989 | { | |
990 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
f24a6840 | 991 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
b804e8a6 | 992 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
a5cf2bb4 | 993 | |
fa8b0ca5 | 994 | virtio_ccw_reset_virtio(dev, vdev); |
b804e8a6 | 995 | css_reset_sch(ccw_dev->sch); |
a5cf2bb4 CH |
996 | } |
997 | ||
b4436a0b CH |
998 | static void virtio_ccw_vmstate_change(DeviceState *d, bool running) |
999 | { | |
1000 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1001 | ||
1002 | if (running) { | |
1003 | virtio_ccw_start_ioeventfd(dev); | |
1004 | } else { | |
1005 | virtio_ccw_stop_ioeventfd(dev); | |
1006 | } | |
1007 | } | |
1008 | ||
320ce850 CH |
1009 | static bool virtio_ccw_query_guest_notifiers(DeviceState *d) |
1010 | { | |
b804e8a6 | 1011 | CcwDevice *dev = CCW_DEVICE(d); |
320ce850 CH |
1012 | |
1013 | return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA); | |
1014 | } | |
1015 | ||
d426d9fb CH |
1016 | static int virtio_ccw_get_mappings(VirtioCcwDevice *dev) |
1017 | { | |
1018 | int r; | |
b804e8a6 | 1019 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
d426d9fb | 1020 | |
b804e8a6 | 1021 | if (!ccw_dev->sch->thinint_active) { |
d426d9fb CH |
1022 | return -EINVAL; |
1023 | } | |
1024 | ||
1025 | r = map_indicator(&dev->routes.adapter, dev->summary_indicator); | |
1026 | if (r) { | |
1027 | return r; | |
1028 | } | |
1029 | r = map_indicator(&dev->routes.adapter, dev->indicators); | |
1030 | if (r) { | |
1031 | return r; | |
1032 | } | |
1033 | dev->routes.adapter.summary_addr = dev->summary_indicator->map; | |
1034 | dev->routes.adapter.ind_addr = dev->indicators->map; | |
1035 | ||
1036 | return 0; | |
1037 | } | |
1038 | ||
1039 | static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs) | |
1040 | { | |
1041 | int i; | |
1042 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1043 | int ret; | |
1044 | S390FLICState *fs = s390_get_flic(); | |
1045 | S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); | |
1046 | ||
1047 | ret = virtio_ccw_get_mappings(dev); | |
1048 | if (ret) { | |
1049 | return ret; | |
1050 | } | |
1051 | for (i = 0; i < nvqs; i++) { | |
1052 | if (!virtio_queue_get_num(vdev, i)) { | |
1053 | break; | |
1054 | } | |
1055 | } | |
1056 | dev->routes.num_routes = i; | |
1057 | return fsc->add_adapter_routes(fs, &dev->routes); | |
1058 | } | |
1059 | ||
1060 | static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs) | |
1061 | { | |
1062 | S390FLICState *fs = s390_get_flic(); | |
1063 | S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); | |
1064 | ||
1065 | fsc->release_adapter_routes(fs, &dev->routes); | |
1066 | } | |
1067 | ||
1068 | static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n) | |
1069 | { | |
1070 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1071 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
1072 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); | |
1073 | ||
1c9b71a7 EA |
1074 | return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL, |
1075 | dev->routes.gsi[n]); | |
d426d9fb CH |
1076 | } |
1077 | ||
1078 | static void virtio_ccw_remove_irqfd(VirtioCcwDevice *dev, int n) | |
1079 | { | |
1080 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1081 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
1082 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); | |
1083 | int ret; | |
1084 | ||
1c9b71a7 EA |
1085 | ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier, |
1086 | dev->routes.gsi[n]); | |
d426d9fb CH |
1087 | assert(ret == 0); |
1088 | } | |
1089 | ||
320ce850 CH |
1090 | static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n, |
1091 | bool assign, bool with_irqfd) | |
1092 | { | |
f24a6840 PB |
1093 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
1094 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
320ce850 | 1095 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); |
f24a6840 | 1096 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
320ce850 CH |
1097 | |
1098 | if (assign) { | |
1099 | int r = event_notifier_init(notifier, 0); | |
1100 | ||
1101 | if (r < 0) { | |
1102 | return r; | |
1103 | } | |
1104 | virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd); | |
d426d9fb CH |
1105 | if (with_irqfd) { |
1106 | r = virtio_ccw_add_irqfd(dev, n); | |
1107 | if (r) { | |
1108 | virtio_queue_set_guest_notifier_fd_handler(vq, false, | |
1109 | with_irqfd); | |
1110 | return r; | |
1111 | } | |
1112 | } | |
1113 | /* | |
1114 | * We do not support individual masking for channel devices, so we | |
1115 | * need to manually trigger any guest masking callbacks here. | |
320ce850 | 1116 | */ |
2858bc68 | 1117 | if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) { |
f24a6840 | 1118 | k->guest_notifier_mask(vdev, n, false); |
320ce850 CH |
1119 | } |
1120 | /* get lost events and re-inject */ | |
1121 | if (k->guest_notifier_pending && | |
f24a6840 | 1122 | k->guest_notifier_pending(vdev, n)) { |
320ce850 CH |
1123 | event_notifier_set(notifier); |
1124 | } | |
1125 | } else { | |
2858bc68 | 1126 | if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) { |
f24a6840 | 1127 | k->guest_notifier_mask(vdev, n, true); |
320ce850 | 1128 | } |
d426d9fb CH |
1129 | if (with_irqfd) { |
1130 | virtio_ccw_remove_irqfd(dev, n); | |
1131 | } | |
320ce850 CH |
1132 | virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd); |
1133 | event_notifier_cleanup(notifier); | |
1134 | } | |
1135 | return 0; | |
1136 | } | |
1137 | ||
1138 | static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs, | |
1139 | bool assigned) | |
1140 | { | |
1141 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
f24a6840 | 1142 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
b804e8a6 JL |
1143 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
1144 | bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled(); | |
320ce850 CH |
1145 | int r, n; |
1146 | ||
d426d9fb CH |
1147 | if (with_irqfd && assigned) { |
1148 | /* irq routes need to be set up before assigning irqfds */ | |
1149 | r = virtio_ccw_setup_irqroutes(dev, nvqs); | |
1150 | if (r < 0) { | |
1151 | goto irqroute_error; | |
1152 | } | |
1153 | } | |
320ce850 CH |
1154 | for (n = 0; n < nvqs; n++) { |
1155 | if (!virtio_queue_get_num(vdev, n)) { | |
1156 | break; | |
1157 | } | |
d426d9fb | 1158 | r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd); |
320ce850 CH |
1159 | if (r < 0) { |
1160 | goto assign_error; | |
1161 | } | |
1162 | } | |
d426d9fb CH |
1163 | if (with_irqfd && !assigned) { |
1164 | /* release irq routes after irqfds have been released */ | |
1165 | virtio_ccw_release_irqroutes(dev, nvqs); | |
1166 | } | |
320ce850 CH |
1167 | return 0; |
1168 | ||
1169 | assign_error: | |
1170 | while (--n >= 0) { | |
1171 | virtio_ccw_set_guest_notifier(dev, n, !assigned, false); | |
1172 | } | |
d426d9fb CH |
1173 | irqroute_error: |
1174 | if (with_irqfd && assigned) { | |
1175 | virtio_ccw_release_irqroutes(dev, nvqs); | |
1176 | } | |
320ce850 CH |
1177 | return r; |
1178 | } | |
1179 | ||
bcb2b582 JF |
1180 | static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f) |
1181 | { | |
1182 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1183 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1184 | ||
1185 | qemu_put_be16(f, virtio_queue_vector(vdev, n)); | |
1186 | } | |
1187 | ||
1188 | static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f) | |
1189 | { | |
1190 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1191 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1192 | uint16_t vector; | |
1193 | ||
1194 | qemu_get_be16s(f, &vector); | |
1195 | virtio_queue_set_vector(vdev, n , vector); | |
1196 | ||
1197 | return 0; | |
1198 | } | |
1199 | ||
1200 | static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f) | |
1201 | { | |
1202 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
b804e8a6 JL |
1203 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
1204 | SubchDev *s = ccw_dev->sch; | |
2a72ea5f | 1205 | VirtIODevice *vdev = virtio_ccw_get_vdev(s); |
bcb2b582 JF |
1206 | |
1207 | subch_device_save(s, f); | |
1208 | if (dev->indicators != NULL) { | |
1209 | qemu_put_be32(f, dev->indicators->len); | |
1210 | qemu_put_be64(f, dev->indicators->addr); | |
1211 | } else { | |
1212 | qemu_put_be32(f, 0); | |
1213 | qemu_put_be64(f, 0UL); | |
1214 | } | |
1215 | if (dev->indicators2 != NULL) { | |
1216 | qemu_put_be32(f, dev->indicators2->len); | |
1217 | qemu_put_be64(f, dev->indicators2->addr); | |
1218 | } else { | |
1219 | qemu_put_be32(f, 0); | |
1220 | qemu_put_be64(f, 0UL); | |
1221 | } | |
1222 | if (dev->summary_indicator != NULL) { | |
1223 | qemu_put_be32(f, dev->summary_indicator->len); | |
1224 | qemu_put_be64(f, dev->summary_indicator->addr); | |
1225 | } else { | |
1226 | qemu_put_be32(f, 0); | |
1227 | qemu_put_be64(f, 0UL); | |
1228 | } | |
2a72ea5f | 1229 | qemu_put_be16(f, vdev->config_vector); |
bcb2b582 JF |
1230 | qemu_put_be64(f, dev->routes.adapter.ind_offset); |
1231 | qemu_put_byte(f, dev->thinint_isc); | |
213941d7 | 1232 | qemu_put_be32(f, dev->revision); |
bcb2b582 JF |
1233 | } |
1234 | ||
1235 | static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f) | |
1236 | { | |
1237 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
b804e8a6 JL |
1238 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
1239 | SubchDev *s = ccw_dev->sch; | |
2a72ea5f | 1240 | VirtIODevice *vdev = virtio_ccw_get_vdev(s); |
bcb2b582 JF |
1241 | int len; |
1242 | ||
1243 | s->driver_data = dev; | |
1244 | subch_device_load(s, f); | |
1245 | len = qemu_get_be32(f); | |
1246 | if (len != 0) { | |
1247 | dev->indicators = get_indicator(qemu_get_be64(f), len); | |
1248 | } else { | |
1249 | qemu_get_be64(f); | |
1250 | dev->indicators = NULL; | |
1251 | } | |
1252 | len = qemu_get_be32(f); | |
1253 | if (len != 0) { | |
1254 | dev->indicators2 = get_indicator(qemu_get_be64(f), len); | |
1255 | } else { | |
1256 | qemu_get_be64(f); | |
1257 | dev->indicators2 = NULL; | |
1258 | } | |
1259 | len = qemu_get_be32(f); | |
1260 | if (len != 0) { | |
1261 | dev->summary_indicator = get_indicator(qemu_get_be64(f), len); | |
1262 | } else { | |
1263 | qemu_get_be64(f); | |
1264 | dev->summary_indicator = NULL; | |
1265 | } | |
2a72ea5f | 1266 | qemu_get_be16s(f, &vdev->config_vector); |
bcb2b582 JF |
1267 | dev->routes.adapter.ind_offset = qemu_get_be64(f); |
1268 | dev->thinint_isc = qemu_get_byte(f); | |
2af9170c | 1269 | dev->revision = qemu_get_be32(f); |
bcb2b582 JF |
1270 | if (s->thinint_active) { |
1271 | return css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO, | |
1272 | dev->thinint_isc, true, false, | |
1273 | &dev->routes.adapter.adapter_id); | |
1274 | } | |
1275 | ||
1276 | return 0; | |
1277 | } | |
1278 | ||
d1b4259f MC |
1279 | static void virtio_ccw_pre_plugged(DeviceState *d, Error **errp) |
1280 | { | |
1281 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1282 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1283 | ||
1284 | if (dev->max_rev >= 1) { | |
1285 | virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1); | |
1286 | } | |
1287 | } | |
1288 | ||
fb846a09 | 1289 | /* This is called by virtio-bus just after the device is plugged. */ |
e8398045 | 1290 | static void virtio_ccw_device_plugged(DeviceState *d, Error **errp) |
fb846a09 CH |
1291 | { |
1292 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
10ceaa1e | 1293 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
b804e8a6 JL |
1294 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
1295 | SubchDev *sch = ccw_dev->sch; | |
10ceaa1e JW |
1296 | int n = virtio_get_num_queues(vdev); |
1297 | ||
d1b4259f MC |
1298 | if (!virtio_has_feature(vdev->host_features, VIRTIO_F_VERSION_1)) { |
1299 | dev->max_rev = 0; | |
1300 | } | |
1301 | ||
10ceaa1e | 1302 | if (virtio_get_num_queues(vdev) > VIRTIO_CCW_QUEUE_MAX) { |
b34aee54 | 1303 | error_setg(errp, "The number of virtqueues %d " |
10ceaa1e JW |
1304 | "exceeds ccw limit %d", n, |
1305 | VIRTIO_CCW_QUEUE_MAX); | |
1306 | return; | |
1307 | } | |
fb846a09 CH |
1308 | |
1309 | sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus); | |
1310 | ||
542571d5 | 1311 | |
fb846a09 CH |
1312 | css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, |
1313 | d->hotplugged, 1); | |
1314 | } | |
1315 | ||
1316 | static void virtio_ccw_device_unplugged(DeviceState *d) | |
1317 | { | |
1318 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1319 | ||
1320 | virtio_ccw_stop_ioeventfd(dev); | |
1321 | } | |
a5cf2bb4 CH |
1322 | /**************** Virtio-ccw Bus Device Descriptions *******************/ |
1323 | ||
a5cf2bb4 | 1324 | static Property virtio_ccw_net_properties[] = { |
b804e8a6 | 1325 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1326 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1327 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1328 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1329 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1330 | DEFINE_PROP_END_OF_LIST(), |
1331 | }; | |
1332 | ||
1333 | static void virtio_ccw_net_class_init(ObjectClass *klass, void *data) | |
1334 | { | |
1335 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1336 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1337 | ||
5e5ced38 | 1338 | k->realize = virtio_ccw_net_realize; |
89334c8b | 1339 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1340 | dc->reset = virtio_ccw_reset; |
1341 | dc->props = virtio_ccw_net_properties; | |
cd20d616 | 1342 | set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); |
a5cf2bb4 CH |
1343 | } |
1344 | ||
1345 | static const TypeInfo virtio_ccw_net = { | |
89334c8b | 1346 | .name = TYPE_VIRTIO_NET_CCW, |
a5cf2bb4 | 1347 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
89334c8b FK |
1348 | .instance_size = sizeof(VirtIONetCcw), |
1349 | .instance_init = virtio_ccw_net_instance_init, | |
a5cf2bb4 CH |
1350 | .class_init = virtio_ccw_net_class_init, |
1351 | }; | |
1352 | ||
1353 | static Property virtio_ccw_blk_properties[] = { | |
b804e8a6 | 1354 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1355 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1356 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1357 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1358 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1359 | DEFINE_PROP_END_OF_LIST(), |
1360 | }; | |
1361 | ||
1362 | static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data) | |
1363 | { | |
1364 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1365 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1366 | ||
5e5ced38 | 1367 | k->realize = virtio_ccw_blk_realize; |
3400c455 | 1368 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1369 | dc->reset = virtio_ccw_reset; |
1370 | dc->props = virtio_ccw_blk_properties; | |
cd20d616 | 1371 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
a5cf2bb4 CH |
1372 | } |
1373 | ||
1374 | static const TypeInfo virtio_ccw_blk = { | |
3400c455 | 1375 | .name = TYPE_VIRTIO_BLK_CCW, |
a5cf2bb4 | 1376 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
3400c455 FK |
1377 | .instance_size = sizeof(VirtIOBlkCcw), |
1378 | .instance_init = virtio_ccw_blk_instance_init, | |
a5cf2bb4 CH |
1379 | .class_init = virtio_ccw_blk_class_init, |
1380 | }; | |
1381 | ||
1382 | static Property virtio_ccw_serial_properties[] = { | |
b804e8a6 | 1383 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1384 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1385 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1386 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1387 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1388 | DEFINE_PROP_END_OF_LIST(), |
1389 | }; | |
1390 | ||
1391 | static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data) | |
1392 | { | |
1393 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1394 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1395 | ||
5e5ced38 | 1396 | k->realize = virtio_ccw_serial_realize; |
6acf69cd | 1397 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1398 | dc->reset = virtio_ccw_reset; |
1399 | dc->props = virtio_ccw_serial_properties; | |
cd20d616 | 1400 | set_bit(DEVICE_CATEGORY_INPUT, dc->categories); |
a5cf2bb4 CH |
1401 | } |
1402 | ||
1403 | static const TypeInfo virtio_ccw_serial = { | |
6acf69cd | 1404 | .name = TYPE_VIRTIO_SERIAL_CCW, |
a5cf2bb4 | 1405 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
6acf69cd FK |
1406 | .instance_size = sizeof(VirtioSerialCcw), |
1407 | .instance_init = virtio_ccw_serial_instance_init, | |
a5cf2bb4 CH |
1408 | .class_init = virtio_ccw_serial_class_init, |
1409 | }; | |
1410 | ||
1411 | static Property virtio_ccw_balloon_properties[] = { | |
b804e8a6 | 1412 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1413 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1414 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1415 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1416 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1417 | DEFINE_PROP_END_OF_LIST(), |
1418 | }; | |
1419 | ||
1420 | static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data) | |
1421 | { | |
1422 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1423 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1424 | ||
5e5ced38 | 1425 | k->realize = virtio_ccw_balloon_realize; |
30bff6a0 | 1426 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1427 | dc->reset = virtio_ccw_reset; |
1428 | dc->props = virtio_ccw_balloon_properties; | |
cd20d616 | 1429 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
a5cf2bb4 CH |
1430 | } |
1431 | ||
1432 | static const TypeInfo virtio_ccw_balloon = { | |
30bff6a0 | 1433 | .name = TYPE_VIRTIO_BALLOON_CCW, |
a5cf2bb4 | 1434 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
30bff6a0 FK |
1435 | .instance_size = sizeof(VirtIOBalloonCcw), |
1436 | .instance_init = virtio_ccw_balloon_instance_init, | |
a5cf2bb4 CH |
1437 | .class_init = virtio_ccw_balloon_class_init, |
1438 | }; | |
1439 | ||
1440 | static Property virtio_ccw_scsi_properties[] = { | |
b804e8a6 | 1441 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1442 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1443 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1444 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1445 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1446 | DEFINE_PROP_END_OF_LIST(), |
1447 | }; | |
1448 | ||
1449 | static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data) | |
1450 | { | |
1451 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1452 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1453 | ||
5e5ced38 | 1454 | k->realize = virtio_ccw_scsi_realize; |
c908ea10 | 1455 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1456 | dc->reset = virtio_ccw_reset; |
1457 | dc->props = virtio_ccw_scsi_properties; | |
cd20d616 | 1458 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
a5cf2bb4 CH |
1459 | } |
1460 | ||
1461 | static const TypeInfo virtio_ccw_scsi = { | |
c908ea10 | 1462 | .name = TYPE_VIRTIO_SCSI_CCW, |
a5cf2bb4 | 1463 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
c908ea10 FK |
1464 | .instance_size = sizeof(VirtIOSCSICcw), |
1465 | .instance_init = virtio_ccw_scsi_instance_init, | |
a5cf2bb4 CH |
1466 | .class_init = virtio_ccw_scsi_class_init, |
1467 | }; | |
1468 | ||
ccf6916c PB |
1469 | #ifdef CONFIG_VHOST_SCSI |
1470 | static Property vhost_ccw_scsi_properties[] = { | |
b804e8a6 | 1471 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
542571d5 CH |
1472 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1473 | VIRTIO_CCW_MAX_REV), | |
ccf6916c PB |
1474 | DEFINE_PROP_END_OF_LIST(), |
1475 | }; | |
1476 | ||
1477 | static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data) | |
1478 | { | |
1479 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1480 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1481 | ||
5e5ced38 | 1482 | k->realize = vhost_ccw_scsi_realize; |
ccf6916c PB |
1483 | k->exit = virtio_ccw_exit; |
1484 | dc->reset = virtio_ccw_reset; | |
1485 | dc->props = vhost_ccw_scsi_properties; | |
cd20d616 | 1486 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
ccf6916c PB |
1487 | } |
1488 | ||
1489 | static const TypeInfo vhost_ccw_scsi = { | |
1490 | .name = TYPE_VHOST_SCSI_CCW, | |
1491 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
4b7757ba | 1492 | .instance_size = sizeof(VHostSCSICcw), |
ccf6916c PB |
1493 | .instance_init = vhost_ccw_scsi_instance_init, |
1494 | .class_init = vhost_ccw_scsi_class_init, | |
1495 | }; | |
1496 | #endif | |
1497 | ||
2db26d4c | 1498 | static void virtio_ccw_rng_instance_init(Object *obj) |
2362ecc5 | 1499 | { |
2db26d4c | 1500 | VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj); |
c8075caf GA |
1501 | |
1502 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1503 | TYPE_VIRTIO_RNG); | |
cbd5ac69 PB |
1504 | object_property_add_alias(obj, "rng", OBJECT(&dev->vdev), |
1505 | "rng", &error_abort); | |
2362ecc5 CH |
1506 | } |
1507 | ||
1508 | static Property virtio_ccw_rng_properties[] = { | |
b804e8a6 | 1509 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1510 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1511 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1512 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1513 | VIRTIO_CCW_MAX_REV), | |
2362ecc5 CH |
1514 | DEFINE_PROP_END_OF_LIST(), |
1515 | }; | |
1516 | ||
1517 | static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data) | |
1518 | { | |
1519 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1520 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1521 | ||
5e5ced38 | 1522 | k->realize = virtio_ccw_rng_realize; |
2db26d4c | 1523 | k->exit = virtio_ccw_exit; |
2362ecc5 CH |
1524 | dc->reset = virtio_ccw_reset; |
1525 | dc->props = virtio_ccw_rng_properties; | |
cd20d616 | 1526 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
2362ecc5 CH |
1527 | } |
1528 | ||
1529 | static const TypeInfo virtio_ccw_rng = { | |
2db26d4c | 1530 | .name = TYPE_VIRTIO_RNG_CCW, |
2362ecc5 | 1531 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
2db26d4c FK |
1532 | .instance_size = sizeof(VirtIORNGCcw), |
1533 | .instance_init = virtio_ccw_rng_instance_init, | |
2362ecc5 CH |
1534 | .class_init = virtio_ccw_rng_class_init, |
1535 | }; | |
1536 | ||
5e5ced38 | 1537 | static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp) |
a5cf2bb4 CH |
1538 | { |
1539 | VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; | |
a5cf2bb4 | 1540 | |
1bf4d7aa | 1541 | virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev); |
1fa75523 | 1542 | virtio_ccw_device_realize(_dev, errp); |
a5cf2bb4 CH |
1543 | } |
1544 | ||
1545 | static int virtio_ccw_busdev_exit(DeviceState *dev) | |
1546 | { | |
1547 | VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; | |
1548 | VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev); | |
1549 | ||
1550 | return _info->exit(_dev); | |
1551 | } | |
1552 | ||
b804e8a6 JL |
1553 | static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev, |
1554 | DeviceState *dev, Error **errp) | |
a5cf2bb4 | 1555 | { |
b804e8a6 | 1556 | VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev); |
a5cf2bb4 | 1557 | |
0b81c1ef | 1558 | virtio_ccw_stop_ioeventfd(_dev); |
a5cf2bb4 CH |
1559 | } |
1560 | ||
1561 | static void virtio_ccw_device_class_init(ObjectClass *klass, void *data) | |
1562 | { | |
1563 | DeviceClass *dc = DEVICE_CLASS(klass); | |
b804e8a6 | 1564 | CCWDeviceClass *k = CCW_DEVICE_CLASS(dc); |
a5cf2bb4 | 1565 | |
b804e8a6 | 1566 | k->unplug = virtio_ccw_busdev_unplug; |
5e5ced38 | 1567 | dc->realize = virtio_ccw_busdev_realize; |
a5cf2bb4 | 1568 | dc->exit = virtio_ccw_busdev_exit; |
a5cf2bb4 | 1569 | dc->bus_type = TYPE_VIRTUAL_CSS_BUS; |
a5cf2bb4 CH |
1570 | } |
1571 | ||
1572 | static const TypeInfo virtio_ccw_device_info = { | |
1573 | .name = TYPE_VIRTIO_CCW_DEVICE, | |
b804e8a6 | 1574 | .parent = TYPE_CCW_DEVICE, |
a5cf2bb4 CH |
1575 | .instance_size = sizeof(VirtioCcwDevice), |
1576 | .class_init = virtio_ccw_device_class_init, | |
1577 | .class_size = sizeof(VirtIOCCWDeviceClass), | |
1578 | .abstract = true, | |
1579 | }; | |
1580 | ||
a5cf2bb4 CH |
1581 | /* virtio-ccw-bus */ |
1582 | ||
1bf4d7aa AF |
1583 | static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, |
1584 | VirtioCcwDevice *dev) | |
a5cf2bb4 CH |
1585 | { |
1586 | DeviceState *qdev = DEVICE(dev); | |
f4dd69aa | 1587 | char virtio_bus_name[] = "virtio-bus"; |
a5cf2bb4 | 1588 | |
fb17dfe0 AF |
1589 | qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS, |
1590 | qdev, virtio_bus_name); | |
a5cf2bb4 CH |
1591 | } |
1592 | ||
1593 | static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data) | |
1594 | { | |
1595 | VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); | |
1596 | BusClass *bus_class = BUS_CLASS(klass); | |
1597 | ||
1598 | bus_class->max_dev = 1; | |
1599 | k->notify = virtio_ccw_notify; | |
b4436a0b | 1600 | k->vmstate_change = virtio_ccw_vmstate_change; |
320ce850 | 1601 | k->query_guest_notifiers = virtio_ccw_query_guest_notifiers; |
320ce850 | 1602 | k->set_guest_notifiers = virtio_ccw_set_guest_notifiers; |
bcb2b582 JF |
1603 | k->save_queue = virtio_ccw_save_queue; |
1604 | k->load_queue = virtio_ccw_load_queue; | |
1605 | k->save_config = virtio_ccw_save_config; | |
1606 | k->load_config = virtio_ccw_load_config; | |
d1b4259f | 1607 | k->pre_plugged = virtio_ccw_pre_plugged; |
fb846a09 CH |
1608 | k->device_plugged = virtio_ccw_device_plugged; |
1609 | k->device_unplugged = virtio_ccw_device_unplugged; | |
8e93cef1 | 1610 | k->ioeventfd_enabled = virtio_ccw_ioeventfd_enabled; |
7c55f68a | 1611 | k->ioeventfd_assign = virtio_ccw_ioeventfd_assign; |
a5cf2bb4 CH |
1612 | } |
1613 | ||
1614 | static const TypeInfo virtio_ccw_bus_info = { | |
1615 | .name = TYPE_VIRTIO_CCW_BUS, | |
1616 | .parent = TYPE_VIRTIO_BUS, | |
1617 | .instance_size = sizeof(VirtioCcwBusState), | |
1618 | .class_init = virtio_ccw_bus_class_init, | |
1619 | }; | |
1620 | ||
de6a9218 PM |
1621 | #ifdef CONFIG_VIRTFS |
1622 | static Property virtio_ccw_9p_properties[] = { | |
b804e8a6 | 1623 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
de6a9218 PM |
1624 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1625 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1626 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1627 | VIRTIO_CCW_MAX_REV), | |
de6a9218 PM |
1628 | DEFINE_PROP_END_OF_LIST(), |
1629 | }; | |
1630 | ||
1631 | static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp) | |
1632 | { | |
1633 | V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev); | |
1634 | DeviceState *vdev = DEVICE(&dev->vdev); | |
de6a9218 PM |
1635 | |
1636 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
6b62d961 | 1637 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
de6a9218 PM |
1638 | } |
1639 | ||
1640 | static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data) | |
1641 | { | |
1642 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1643 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1644 | ||
1645 | k->exit = virtio_ccw_exit; | |
1646 | k->realize = virtio_ccw_9p_realize; | |
1647 | dc->reset = virtio_ccw_reset; | |
1648 | dc->props = virtio_ccw_9p_properties; | |
1649 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); | |
1650 | } | |
1651 | ||
1652 | static void virtio_ccw_9p_instance_init(Object *obj) | |
1653 | { | |
1654 | V9fsCCWState *dev = VIRTIO_9P_CCW(obj); | |
1655 | ||
1656 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1657 | TYPE_VIRTIO_9P); | |
1658 | } | |
1659 | ||
1660 | static const TypeInfo virtio_ccw_9p_info = { | |
1661 | .name = TYPE_VIRTIO_9P_CCW, | |
1662 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
1663 | .instance_size = sizeof(V9fsCCWState), | |
1664 | .instance_init = virtio_ccw_9p_instance_init, | |
1665 | .class_init = virtio_ccw_9p_class_init, | |
1666 | }; | |
1667 | #endif | |
1668 | ||
fc0b9b0e SH |
1669 | #ifdef CONFIG_VHOST_VSOCK |
1670 | ||
1671 | static Property vhost_vsock_ccw_properties[] = { | |
1672 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), | |
1673 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, | |
1674 | VIRTIO_CCW_MAX_REV), | |
1675 | DEFINE_PROP_END_OF_LIST(), | |
1676 | }; | |
1677 | ||
1678 | static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp) | |
1679 | { | |
1680 | VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev); | |
1681 | DeviceState *vdev = DEVICE(&dev->vdev); | |
1682 | Error *err = NULL; | |
1683 | ||
1684 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
1685 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); | |
1686 | if (err) { | |
1687 | error_propagate(errp, err); | |
1688 | } | |
1689 | } | |
1690 | ||
1691 | static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data) | |
1692 | { | |
1693 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1694 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1695 | ||
1696 | k->realize = vhost_vsock_ccw_realize; | |
1697 | k->exit = virtio_ccw_exit; | |
1698 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); | |
1699 | dc->props = vhost_vsock_ccw_properties; | |
1700 | dc->reset = virtio_ccw_reset; | |
1701 | } | |
1702 | ||
1703 | static void vhost_vsock_ccw_instance_init(Object *obj) | |
1704 | { | |
1705 | VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj); | |
1706 | ||
1707 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1708 | TYPE_VHOST_VSOCK); | |
1709 | } | |
1710 | ||
1711 | static const TypeInfo vhost_vsock_ccw_info = { | |
1712 | .name = TYPE_VHOST_VSOCK_CCW, | |
1713 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
1714 | .instance_size = sizeof(VHostVSockCCWState), | |
1715 | .instance_init = vhost_vsock_ccw_instance_init, | |
1716 | .class_init = vhost_vsock_ccw_class_init, | |
1717 | }; | |
1718 | #endif | |
1719 | ||
a5cf2bb4 CH |
1720 | static void virtio_ccw_register(void) |
1721 | { | |
1722 | type_register_static(&virtio_ccw_bus_info); | |
a5cf2bb4 CH |
1723 | type_register_static(&virtio_ccw_device_info); |
1724 | type_register_static(&virtio_ccw_serial); | |
1725 | type_register_static(&virtio_ccw_blk); | |
1726 | type_register_static(&virtio_ccw_net); | |
1727 | type_register_static(&virtio_ccw_balloon); | |
1728 | type_register_static(&virtio_ccw_scsi); | |
b702d2ae | 1729 | #ifdef CONFIG_VHOST_SCSI |
ccf6916c | 1730 | type_register_static(&vhost_ccw_scsi); |
b702d2ae | 1731 | #endif |
2362ecc5 | 1732 | type_register_static(&virtio_ccw_rng); |
de6a9218 PM |
1733 | #ifdef CONFIG_VIRTFS |
1734 | type_register_static(&virtio_ccw_9p_info); | |
1735 | #endif | |
fc0b9b0e SH |
1736 | #ifdef CONFIG_VHOST_VSOCK |
1737 | type_register_static(&vhost_vsock_ccw_info); | |
1738 | #endif | |
a5cf2bb4 CH |
1739 | } |
1740 | ||
1741 | type_init(virtio_ccw_register) |