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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 | ||
7c55f68a | 62 | static bool virtio_ccw_ioeventfd_started(DeviceState *d) |
b4436a0b | 63 | { |
7c55f68a | 64 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); |
b4436a0b | 65 | |
7c55f68a CH |
66 | return dev->ioeventfd_started; |
67 | } | |
b4436a0b | 68 | |
7c55f68a CH |
69 | static void virtio_ccw_ioeventfd_set_started(DeviceState *d, bool started, |
70 | bool err) | |
71 | { | |
72 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
73 | ||
74 | dev->ioeventfd_started = started; | |
75 | if (err) { | |
76 | /* Disable ioeventfd for this device. */ | |
77 | dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD; | |
b4436a0b | 78 | } |
b4436a0b CH |
79 | } |
80 | ||
7c55f68a | 81 | static bool virtio_ccw_ioeventfd_disabled(DeviceState *d) |
b4436a0b | 82 | { |
7c55f68a | 83 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); |
b4436a0b | 84 | |
7c55f68a CH |
85 | return dev->ioeventfd_disabled || |
86 | !(dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD); | |
87 | } | |
88 | ||
89 | static void virtio_ccw_ioeventfd_set_disabled(DeviceState *d, bool disabled) | |
90 | { | |
91 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
92 | ||
93 | dev->ioeventfd_disabled = disabled; | |
94 | } | |
95 | ||
96 | static int virtio_ccw_ioeventfd_assign(DeviceState *d, EventNotifier *notifier, | |
97 | int n, bool assign) | |
98 | { | |
99 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
b804e8a6 JL |
100 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
101 | SubchDev *sch = ccw_dev->sch; | |
7c55f68a CH |
102 | uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid; |
103 | ||
104 | return s390_assign_subch_ioeventfd(notifier, sch_id, n, assign); | |
b4436a0b CH |
105 | } |
106 | ||
a5cf2bb4 | 107 | /* Communication blocks used by several channel commands. */ |
0db87e0d | 108 | typedef struct VqInfoBlockLegacy { |
a5cf2bb4 CH |
109 | uint64_t queue; |
110 | uint32_t align; | |
111 | uint16_t index; | |
112 | uint16_t num; | |
0db87e0d CH |
113 | } QEMU_PACKED VqInfoBlockLegacy; |
114 | ||
115 | typedef struct VqInfoBlock { | |
116 | uint64_t desc; | |
117 | uint32_t res0; | |
118 | uint16_t index; | |
119 | uint16_t num; | |
120 | uint64_t avail; | |
121 | uint64_t used; | |
a5cf2bb4 CH |
122 | } QEMU_PACKED VqInfoBlock; |
123 | ||
124 | typedef struct VqConfigBlock { | |
125 | uint16_t index; | |
126 | uint16_t num_max; | |
127 | } QEMU_PACKED VqConfigBlock; | |
128 | ||
129 | typedef struct VirtioFeatDesc { | |
130 | uint32_t features; | |
131 | uint8_t index; | |
132 | } QEMU_PACKED VirtioFeatDesc; | |
133 | ||
7e749462 CH |
134 | typedef struct VirtioThinintInfo { |
135 | hwaddr summary_indicator; | |
136 | hwaddr device_indicator; | |
137 | uint64_t ind_bit; | |
138 | uint8_t isc; | |
139 | } QEMU_PACKED VirtioThinintInfo; | |
140 | ||
c42767f2 TH |
141 | typedef struct VirtioRevInfo { |
142 | uint16_t revision; | |
143 | uint16_t length; | |
144 | uint8_t data[0]; | |
145 | } QEMU_PACKED VirtioRevInfo; | |
146 | ||
a5cf2bb4 | 147 | /* Specify where the virtqueues for the subchannel are in guest memory. */ |
0db87e0d CH |
148 | static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info, |
149 | VqInfoBlockLegacy *linfo) | |
a5cf2bb4 | 150 | { |
f24a6840 | 151 | VirtIODevice *vdev = virtio_ccw_get_vdev(sch); |
0db87e0d CH |
152 | uint16_t index = info ? info->index : linfo->index; |
153 | uint16_t num = info ? info->num : linfo->num; | |
154 | uint64_t desc = info ? info->desc : linfo->queue; | |
a5cf2bb4 | 155 | |
8dfbaa6a | 156 | if (index >= VIRTIO_CCW_QUEUE_MAX) { |
a5cf2bb4 CH |
157 | return -EINVAL; |
158 | } | |
159 | ||
160 | /* Current code in virtio.c relies on 4K alignment. */ | |
0db87e0d | 161 | if (linfo && desc && (linfo->align != 4096)) { |
a5cf2bb4 CH |
162 | return -EINVAL; |
163 | } | |
164 | ||
f24a6840 | 165 | if (!vdev) { |
a5cf2bb4 CH |
166 | return -EINVAL; |
167 | } | |
168 | ||
0db87e0d CH |
169 | if (info) { |
170 | virtio_queue_set_rings(vdev, index, desc, info->avail, info->used); | |
171 | } else { | |
172 | virtio_queue_set_addr(vdev, index, desc); | |
173 | } | |
174 | if (!desc) { | |
955cc8c9 | 175 | virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR); |
a5cf2bb4 | 176 | } else { |
79cd0c80 CH |
177 | if (info) { |
178 | /* virtio-1 allows changing the ring size. */ | |
179 | if (virtio_queue_get_num(vdev, index) < num) { | |
180 | /* Fail if we exceed the maximum number. */ | |
181 | return -EINVAL; | |
182 | } | |
183 | virtio_queue_set_num(vdev, index, num); | |
184 | } else if (virtio_queue_get_num(vdev, index) > num) { | |
185 | /* Fail if we don't have a big enough queue. */ | |
a5cf2bb4 CH |
186 | return -EINVAL; |
187 | } | |
79cd0c80 | 188 | /* We ignore possible increased num for legacy for compatibility. */ |
f24a6840 | 189 | virtio_queue_set_vector(vdev, index, index); |
a5cf2bb4 CH |
190 | } |
191 | /* tell notify handler in case of config change */ | |
8dfbaa6a | 192 | vdev->config_vector = VIRTIO_CCW_QUEUE_MAX; |
a5cf2bb4 CH |
193 | return 0; |
194 | } | |
195 | ||
fa8b0ca5 CH |
196 | static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev) |
197 | { | |
b804e8a6 JL |
198 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
199 | ||
fa8b0ca5 CH |
200 | virtio_ccw_stop_ioeventfd(dev); |
201 | virtio_reset(vdev); | |
202 | if (dev->indicators) { | |
203 | release_indicator(&dev->routes.adapter, dev->indicators); | |
204 | dev->indicators = NULL; | |
205 | } | |
206 | if (dev->indicators2) { | |
207 | release_indicator(&dev->routes.adapter, dev->indicators2); | |
208 | dev->indicators2 = NULL; | |
209 | } | |
210 | if (dev->summary_indicator) { | |
211 | release_indicator(&dev->routes.adapter, dev->summary_indicator); | |
212 | dev->summary_indicator = NULL; | |
213 | } | |
b804e8a6 | 214 | ccw_dev->sch->thinint_active = false; |
fa8b0ca5 CH |
215 | } |
216 | ||
0db87e0d CH |
217 | static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len, |
218 | bool is_legacy) | |
a5cf2bb4 CH |
219 | { |
220 | int ret; | |
221 | VqInfoBlock info; | |
0db87e0d CH |
222 | VqInfoBlockLegacy linfo; |
223 | size_t info_len = is_legacy ? sizeof(linfo) : sizeof(info); | |
224 | ||
225 | if (check_len) { | |
226 | if (ccw.count != info_len) { | |
227 | return -EINVAL; | |
228 | } | |
229 | } else if (ccw.count < info_len) { | |
230 | /* Can't execute command. */ | |
231 | return -EINVAL; | |
232 | } | |
233 | if (!ccw.cda) { | |
234 | return -EFAULT; | |
235 | } | |
236 | if (is_legacy) { | |
237 | linfo.queue = address_space_ldq_be(&address_space_memory, ccw.cda, | |
238 | MEMTXATTRS_UNSPECIFIED, NULL); | |
239 | linfo.align = address_space_ldl_be(&address_space_memory, | |
240 | ccw.cda + sizeof(linfo.queue), | |
241 | MEMTXATTRS_UNSPECIFIED, | |
242 | NULL); | |
243 | linfo.index = address_space_lduw_be(&address_space_memory, | |
244 | ccw.cda + sizeof(linfo.queue) | |
245 | + sizeof(linfo.align), | |
246 | MEMTXATTRS_UNSPECIFIED, | |
247 | NULL); | |
248 | linfo.num = address_space_lduw_be(&address_space_memory, | |
249 | ccw.cda + sizeof(linfo.queue) | |
250 | + sizeof(linfo.align) | |
251 | + sizeof(linfo.index), | |
252 | MEMTXATTRS_UNSPECIFIED, | |
253 | NULL); | |
254 | ret = virtio_ccw_set_vqs(sch, NULL, &linfo); | |
255 | } else { | |
256 | info.desc = address_space_ldq_be(&address_space_memory, ccw.cda, | |
257 | MEMTXATTRS_UNSPECIFIED, NULL); | |
258 | info.index = address_space_lduw_be(&address_space_memory, | |
259 | ccw.cda + sizeof(info.desc) | |
260 | + sizeof(info.res0), | |
261 | MEMTXATTRS_UNSPECIFIED, NULL); | |
262 | info.num = address_space_lduw_be(&address_space_memory, | |
263 | ccw.cda + sizeof(info.desc) | |
264 | + sizeof(info.res0) | |
265 | + sizeof(info.index), | |
266 | MEMTXATTRS_UNSPECIFIED, NULL); | |
267 | info.avail = address_space_ldq_be(&address_space_memory, | |
268 | ccw.cda + sizeof(info.desc) | |
269 | + sizeof(info.res0) | |
270 | + sizeof(info.index) | |
271 | + sizeof(info.num), | |
272 | MEMTXATTRS_UNSPECIFIED, NULL); | |
273 | info.used = address_space_ldq_be(&address_space_memory, | |
274 | ccw.cda + sizeof(info.desc) | |
275 | + sizeof(info.res0) | |
276 | + sizeof(info.index) | |
277 | + sizeof(info.num) | |
278 | + sizeof(info.avail), | |
279 | MEMTXATTRS_UNSPECIFIED, NULL); | |
280 | ret = virtio_ccw_set_vqs(sch, &info, NULL); | |
281 | } | |
282 | sch->curr_status.scsw.count = 0; | |
283 | return ret; | |
284 | } | |
285 | ||
286 | static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw) | |
287 | { | |
288 | int ret; | |
c42767f2 | 289 | VirtioRevInfo revinfo; |
a5cf2bb4 CH |
290 | uint8_t status; |
291 | VirtioFeatDesc features; | |
292 | void *config; | |
293 | hwaddr indicators; | |
294 | VqConfigBlock vq_config; | |
295 | VirtioCcwDevice *dev = sch->driver_data; | |
f24a6840 | 296 | VirtIODevice *vdev = virtio_ccw_get_vdev(sch); |
a5cf2bb4 CH |
297 | bool check_len; |
298 | int len; | |
299 | hwaddr hw_len; | |
7e749462 | 300 | VirtioThinintInfo *thinint; |
a5cf2bb4 CH |
301 | |
302 | if (!dev) { | |
303 | return -EINVAL; | |
304 | } | |
305 | ||
306 | trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid, | |
307 | ccw.cmd_code); | |
308 | check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC)); | |
309 | ||
310 | /* Look at the command. */ | |
311 | switch (ccw.cmd_code) { | |
312 | case CCW_CMD_SET_VQ: | |
0db87e0d | 313 | ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1); |
a5cf2bb4 CH |
314 | break; |
315 | case CCW_CMD_VDEV_RESET: | |
fa8b0ca5 | 316 | virtio_ccw_reset_virtio(dev, vdev); |
a5cf2bb4 CH |
317 | ret = 0; |
318 | break; | |
319 | case CCW_CMD_READ_FEAT: | |
320 | if (check_len) { | |
321 | if (ccw.count != sizeof(features)) { | |
322 | ret = -EINVAL; | |
323 | break; | |
324 | } | |
325 | } else if (ccw.count < sizeof(features)) { | |
326 | /* Can't execute command. */ | |
327 | ret = -EINVAL; | |
328 | break; | |
329 | } | |
330 | if (!ccw.cda) { | |
331 | ret = -EFAULT; | |
332 | } else { | |
42874d3a PM |
333 | features.index = address_space_ldub(&address_space_memory, |
334 | ccw.cda | |
335 | + sizeof(features.features), | |
336 | MEMTXATTRS_UNSPECIFIED, | |
337 | NULL); | |
6b8f1020 | 338 | if (features.index == 0) { |
542571d5 CH |
339 | if (dev->revision >= 1) { |
340 | /* Don't offer legacy features for modern devices. */ | |
341 | features.features = (uint32_t) | |
342 | (vdev->host_features & ~VIRTIO_LEGACY_FEATURES); | |
343 | } else { | |
344 | features.features = (uint32_t)vdev->host_features; | |
345 | } | |
b4f8f9df | 346 | } else if ((features.index == 1) && (dev->revision >= 1)) { |
c42767f2 | 347 | /* |
b4f8f9df CH |
348 | * Only offer feature bits beyond 31 if the guest has |
349 | * negotiated at least revision 1. | |
c42767f2 | 350 | */ |
b4f8f9df | 351 | features.features = (uint32_t)(vdev->host_features >> 32); |
a5cf2bb4 CH |
352 | } else { |
353 | /* Return zeroes if the guest supports more feature bits. */ | |
354 | features.features = 0; | |
355 | } | |
42874d3a PM |
356 | address_space_stl_le(&address_space_memory, ccw.cda, |
357 | features.features, MEMTXATTRS_UNSPECIFIED, | |
358 | NULL); | |
a5cf2bb4 CH |
359 | sch->curr_status.scsw.count = ccw.count - sizeof(features); |
360 | ret = 0; | |
361 | } | |
362 | break; | |
363 | case CCW_CMD_WRITE_FEAT: | |
364 | if (check_len) { | |
365 | if (ccw.count != sizeof(features)) { | |
366 | ret = -EINVAL; | |
367 | break; | |
368 | } | |
369 | } else if (ccw.count < sizeof(features)) { | |
370 | /* Can't execute command. */ | |
371 | ret = -EINVAL; | |
372 | break; | |
373 | } | |
374 | if (!ccw.cda) { | |
375 | ret = -EFAULT; | |
376 | } else { | |
42874d3a PM |
377 | features.index = address_space_ldub(&address_space_memory, |
378 | ccw.cda | |
379 | + sizeof(features.features), | |
380 | MEMTXATTRS_UNSPECIFIED, | |
381 | NULL); | |
382 | features.features = address_space_ldl_le(&address_space_memory, | |
383 | ccw.cda, | |
384 | MEMTXATTRS_UNSPECIFIED, | |
385 | NULL); | |
6b8f1020 | 386 | if (features.index == 0) { |
c42767f2 TH |
387 | virtio_set_features(vdev, |
388 | (vdev->guest_features & 0xffffffff00000000ULL) | | |
389 | features.features); | |
b4f8f9df | 390 | } else if ((features.index == 1) && (dev->revision >= 1)) { |
c42767f2 | 391 | /* |
b4f8f9df CH |
392 | * If the guest did not negotiate at least revision 1, |
393 | * we did not offer it any feature bits beyond 31. Such a | |
394 | * guest passing us any bit here is therefore buggy. | |
c42767f2 | 395 | */ |
c42767f2 TH |
396 | virtio_set_features(vdev, |
397 | (vdev->guest_features & 0x00000000ffffffffULL) | | |
398 | ((uint64_t)features.features << 32)); | |
a5cf2bb4 CH |
399 | } else { |
400 | /* | |
401 | * If the guest supports more feature bits, assert that it | |
402 | * passes us zeroes for those we don't support. | |
403 | */ | |
404 | if (features.features) { | |
405 | fprintf(stderr, "Guest bug: features[%i]=%x (expected 0)\n", | |
406 | features.index, features.features); | |
407 | /* XXX: do a unit check here? */ | |
408 | } | |
409 | } | |
410 | sch->curr_status.scsw.count = ccw.count - sizeof(features); | |
411 | ret = 0; | |
412 | } | |
413 | break; | |
414 | case CCW_CMD_READ_CONF: | |
415 | if (check_len) { | |
f24a6840 | 416 | if (ccw.count > vdev->config_len) { |
a5cf2bb4 CH |
417 | ret = -EINVAL; |
418 | break; | |
419 | } | |
420 | } | |
f24a6840 | 421 | len = MIN(ccw.count, vdev->config_len); |
a5cf2bb4 CH |
422 | if (!ccw.cda) { |
423 | ret = -EFAULT; | |
424 | } else { | |
f24a6840 | 425 | virtio_bus_get_vdev_config(&dev->bus, vdev->config); |
a5cf2bb4 | 426 | /* XXX config space endianness */ |
f24a6840 | 427 | cpu_physical_memory_write(ccw.cda, vdev->config, len); |
a5cf2bb4 CH |
428 | sch->curr_status.scsw.count = ccw.count - len; |
429 | ret = 0; | |
430 | } | |
431 | break; | |
432 | case CCW_CMD_WRITE_CONF: | |
433 | if (check_len) { | |
f24a6840 | 434 | if (ccw.count > vdev->config_len) { |
a5cf2bb4 CH |
435 | ret = -EINVAL; |
436 | break; | |
437 | } | |
438 | } | |
f24a6840 | 439 | len = MIN(ccw.count, vdev->config_len); |
a5cf2bb4 CH |
440 | hw_len = len; |
441 | if (!ccw.cda) { | |
442 | ret = -EFAULT; | |
443 | } else { | |
444 | config = cpu_physical_memory_map(ccw.cda, &hw_len, 0); | |
445 | if (!config) { | |
446 | ret = -EFAULT; | |
447 | } else { | |
448 | len = hw_len; | |
449 | /* XXX config space endianness */ | |
f24a6840 | 450 | memcpy(vdev->config, config, len); |
a5cf2bb4 | 451 | cpu_physical_memory_unmap(config, hw_len, 0, hw_len); |
f24a6840 | 452 | virtio_bus_set_vdev_config(&dev->bus, vdev->config); |
a5cf2bb4 CH |
453 | sch->curr_status.scsw.count = ccw.count - len; |
454 | ret = 0; | |
455 | } | |
456 | } | |
457 | break; | |
458 | case CCW_CMD_WRITE_STATUS: | |
459 | if (check_len) { | |
460 | if (ccw.count != sizeof(status)) { | |
461 | ret = -EINVAL; | |
462 | break; | |
463 | } | |
464 | } else if (ccw.count < sizeof(status)) { | |
465 | /* Can't execute command. */ | |
466 | ret = -EINVAL; | |
467 | break; | |
468 | } | |
469 | if (!ccw.cda) { | |
470 | ret = -EFAULT; | |
471 | } else { | |
42874d3a PM |
472 | status = address_space_ldub(&address_space_memory, ccw.cda, |
473 | MEMTXATTRS_UNSPECIFIED, NULL); | |
b4436a0b CH |
474 | if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) { |
475 | virtio_ccw_stop_ioeventfd(dev); | |
476 | } | |
0b352fd6 CH |
477 | if (virtio_set_status(vdev, status) == 0) { |
478 | if (vdev->status == 0) { | |
fa8b0ca5 | 479 | virtio_ccw_reset_virtio(dev, vdev); |
0b352fd6 CH |
480 | } |
481 | if (status & VIRTIO_CONFIG_S_DRIVER_OK) { | |
482 | virtio_ccw_start_ioeventfd(dev); | |
483 | } | |
484 | sch->curr_status.scsw.count = ccw.count - sizeof(status); | |
485 | ret = 0; | |
486 | } else { | |
487 | /* Trigger a command reject. */ | |
488 | ret = -ENOSYS; | |
b4436a0b | 489 | } |
a5cf2bb4 CH |
490 | } |
491 | break; | |
492 | case CCW_CMD_SET_IND: | |
493 | if (check_len) { | |
494 | if (ccw.count != sizeof(indicators)) { | |
495 | ret = -EINVAL; | |
496 | break; | |
497 | } | |
498 | } else if (ccw.count < sizeof(indicators)) { | |
499 | /* Can't execute command. */ | |
500 | ret = -EINVAL; | |
501 | break; | |
502 | } | |
7e749462 CH |
503 | if (sch->thinint_active) { |
504 | /* Trigger a command reject. */ | |
505 | ret = -ENOSYS; | |
506 | break; | |
507 | } | |
d1db1fa8 | 508 | if (!ccw.cda) { |
a5cf2bb4 CH |
509 | ret = -EFAULT; |
510 | } else { | |
42874d3a PM |
511 | indicators = address_space_ldq_be(&address_space_memory, ccw.cda, |
512 | MEMTXATTRS_UNSPECIFIED, NULL); | |
7bca3892 | 513 | dev->indicators = get_indicator(indicators, sizeof(uint64_t)); |
a5cf2bb4 CH |
514 | sch->curr_status.scsw.count = ccw.count - sizeof(indicators); |
515 | ret = 0; | |
516 | } | |
517 | break; | |
518 | case CCW_CMD_SET_CONF_IND: | |
519 | if (check_len) { | |
520 | if (ccw.count != sizeof(indicators)) { | |
521 | ret = -EINVAL; | |
522 | break; | |
523 | } | |
524 | } else if (ccw.count < sizeof(indicators)) { | |
525 | /* Can't execute command. */ | |
526 | ret = -EINVAL; | |
527 | break; | |
528 | } | |
d1db1fa8 | 529 | if (!ccw.cda) { |
a5cf2bb4 CH |
530 | ret = -EFAULT; |
531 | } else { | |
42874d3a PM |
532 | indicators = address_space_ldq_be(&address_space_memory, ccw.cda, |
533 | MEMTXATTRS_UNSPECIFIED, NULL); | |
7bca3892 | 534 | dev->indicators2 = get_indicator(indicators, sizeof(uint64_t)); |
a5cf2bb4 CH |
535 | sch->curr_status.scsw.count = ccw.count - sizeof(indicators); |
536 | ret = 0; | |
537 | } | |
538 | break; | |
539 | case CCW_CMD_READ_VQ_CONF: | |
540 | if (check_len) { | |
541 | if (ccw.count != sizeof(vq_config)) { | |
542 | ret = -EINVAL; | |
543 | break; | |
544 | } | |
545 | } else if (ccw.count < sizeof(vq_config)) { | |
546 | /* Can't execute command. */ | |
547 | ret = -EINVAL; | |
548 | break; | |
549 | } | |
550 | if (!ccw.cda) { | |
551 | ret = -EFAULT; | |
552 | } else { | |
42874d3a PM |
553 | vq_config.index = address_space_lduw_be(&address_space_memory, |
554 | ccw.cda, | |
555 | MEMTXATTRS_UNSPECIFIED, | |
556 | NULL); | |
8dfbaa6a | 557 | if (vq_config.index >= VIRTIO_CCW_QUEUE_MAX) { |
d03a3630 CH |
558 | ret = -EINVAL; |
559 | break; | |
560 | } | |
f24a6840 | 561 | vq_config.num_max = virtio_queue_get_num(vdev, |
a5cf2bb4 | 562 | vq_config.index); |
42874d3a PM |
563 | address_space_stw_be(&address_space_memory, |
564 | ccw.cda + sizeof(vq_config.index), | |
565 | vq_config.num_max, | |
566 | MEMTXATTRS_UNSPECIFIED, | |
567 | NULL); | |
a5cf2bb4 CH |
568 | sch->curr_status.scsw.count = ccw.count - sizeof(vq_config); |
569 | ret = 0; | |
570 | } | |
571 | break; | |
7e749462 CH |
572 | case CCW_CMD_SET_IND_ADAPTER: |
573 | if (check_len) { | |
574 | if (ccw.count != sizeof(*thinint)) { | |
575 | ret = -EINVAL; | |
576 | break; | |
577 | } | |
578 | } else if (ccw.count < sizeof(*thinint)) { | |
579 | /* Can't execute command. */ | |
580 | ret = -EINVAL; | |
581 | break; | |
582 | } | |
583 | len = sizeof(*thinint); | |
584 | hw_len = len; | |
585 | if (!ccw.cda) { | |
586 | ret = -EFAULT; | |
587 | } else if (dev->indicators && !sch->thinint_active) { | |
588 | /* Trigger a command reject. */ | |
589 | ret = -ENOSYS; | |
590 | } else { | |
591 | thinint = cpu_physical_memory_map(ccw.cda, &hw_len, 0); | |
592 | if (!thinint) { | |
593 | ret = -EFAULT; | |
594 | } else { | |
7d45285f CH |
595 | uint64_t ind_bit = ldq_be_p(&thinint->ind_bit); |
596 | ||
7e749462 | 597 | len = hw_len; |
7bca3892 | 598 | dev->summary_indicator = |
7d45285f CH |
599 | get_indicator(ldq_be_p(&thinint->summary_indicator), |
600 | sizeof(uint8_t)); | |
601 | dev->indicators = | |
602 | get_indicator(ldq_be_p(&thinint->device_indicator), | |
603 | ind_bit / 8 + 1); | |
7e749462 | 604 | dev->thinint_isc = thinint->isc; |
7d45285f | 605 | dev->routes.adapter.ind_offset = ind_bit; |
d426d9fb | 606 | dev->routes.adapter.summary_offset = 7; |
7e749462 | 607 | cpu_physical_memory_unmap(thinint, hw_len, 0, hw_len); |
03cf077a CH |
608 | ret = css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO, |
609 | dev->thinint_isc, true, false, | |
d426d9fb | 610 | &dev->routes.adapter.adapter_id); |
03cf077a | 611 | assert(ret == 0); |
7bca3892 CH |
612 | sch->thinint_active = ((dev->indicators != NULL) && |
613 | (dev->summary_indicator != NULL)); | |
7e749462 CH |
614 | sch->curr_status.scsw.count = ccw.count - len; |
615 | ret = 0; | |
616 | } | |
617 | } | |
618 | break; | |
c42767f2 TH |
619 | case CCW_CMD_SET_VIRTIO_REV: |
620 | len = sizeof(revinfo); | |
621 | if (ccw.count < len) { | |
622 | ret = -EINVAL; | |
623 | break; | |
624 | } | |
625 | if (!ccw.cda) { | |
626 | ret = -EFAULT; | |
627 | break; | |
628 | } | |
629 | revinfo.revision = | |
630 | address_space_lduw_be(&address_space_memory, ccw.cda, | |
631 | MEMTXATTRS_UNSPECIFIED, NULL); | |
632 | revinfo.length = | |
633 | address_space_lduw_be(&address_space_memory, | |
634 | ccw.cda + sizeof(revinfo.revision), | |
635 | MEMTXATTRS_UNSPECIFIED, NULL); | |
636 | if (ccw.count < len + revinfo.length || | |
637 | (check_len && ccw.count > len + revinfo.length)) { | |
638 | ret = -EINVAL; | |
639 | break; | |
640 | } | |
641 | /* | |
642 | * Once we start to support revisions with additional data, we'll | |
643 | * need to fetch it here. Nothing to do for now, though. | |
644 | */ | |
645 | if (dev->revision >= 0 || | |
542571d5 | 646 | revinfo.revision > virtio_ccw_rev_max(dev)) { |
c42767f2 TH |
647 | ret = -ENOSYS; |
648 | break; | |
649 | } | |
650 | ret = 0; | |
651 | dev->revision = revinfo.revision; | |
652 | break; | |
a5cf2bb4 | 653 | default: |
8d034a6f | 654 | ret = -ENOSYS; |
a5cf2bb4 CH |
655 | break; |
656 | } | |
657 | return ret; | |
658 | } | |
659 | ||
c42767f2 TH |
660 | static void virtio_sch_disable_cb(SubchDev *sch) |
661 | { | |
662 | VirtioCcwDevice *dev = sch->driver_data; | |
663 | ||
664 | dev->revision = -1; | |
665 | } | |
666 | ||
1fa75523 | 667 | static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp) |
a5cf2bb4 | 668 | { |
1fa75523 | 669 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev); |
b804e8a6 JL |
670 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
671 | SubchDev *sch = css_create_virtual_sch(ccw_dev->bus_id, errp); | |
cf249935 | 672 | Error *err = NULL; |
a5cf2bb4 | 673 | |
cf249935 SS |
674 | if (!sch) { |
675 | return; | |
a5cf2bb4 CH |
676 | } |
677 | ||
cf249935 | 678 | sch->driver_data = dev; |
a5cf2bb4 | 679 | sch->ccw_cb = virtio_ccw_cb; |
c42767f2 | 680 | sch->disable_cb = virtio_sch_disable_cb; |
a5cf2bb4 CH |
681 | sch->id.reserved = 0xff; |
682 | sch->id.cu_type = VIRTIO_CCW_CU_TYPE; | |
b804e8a6 | 683 | ccw_dev->sch = sch; |
cf249935 | 684 | dev->indicators = NULL; |
c42767f2 | 685 | dev->revision = -1; |
cf249935 SS |
686 | css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE); |
687 | ||
688 | trace_virtio_ccw_new_device( | |
689 | sch->cssid, sch->ssid, sch->schid, sch->devno, | |
b804e8a6 | 690 | ccw_dev->bus_id.valid ? "user-configured" : "auto-configured"); |
c42767f2 | 691 | |
1fa75523 CH |
692 | if (k->realize) { |
693 | k->realize(dev, &err); | |
694 | } | |
695 | if (err) { | |
696 | error_propagate(errp, err); | |
06e686ea | 697 | css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); |
b804e8a6 | 698 | ccw_dev->sch = NULL; |
cf249935 | 699 | g_free(sch); |
1fa75523 | 700 | } |
a5cf2bb4 CH |
701 | } |
702 | ||
703 | static int virtio_ccw_exit(VirtioCcwDevice *dev) | |
704 | { | |
b804e8a6 JL |
705 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
706 | SubchDev *sch = ccw_dev->sch; | |
a5cf2bb4 CH |
707 | |
708 | if (sch) { | |
709 | css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); | |
710 | g_free(sch); | |
711 | } | |
7bca3892 | 712 | if (dev->indicators) { |
d426d9fb | 713 | release_indicator(&dev->routes.adapter, dev->indicators); |
7bca3892 CH |
714 | dev->indicators = NULL; |
715 | } | |
a5cf2bb4 CH |
716 | return 0; |
717 | } | |
718 | ||
5e5ced38 | 719 | static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 720 | { |
800ced8c | 721 | DeviceState *qdev = DEVICE(ccw_dev); |
89334c8b FK |
722 | VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev); |
723 | DeviceState *vdev = DEVICE(&dev->vdev); | |
a5cf2bb4 | 724 | |
800ced8c FK |
725 | virtio_net_set_netclient_name(&dev->vdev, qdev->id, |
726 | object_get_typename(OBJECT(qdev))); | |
89334c8b | 727 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 728 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
729 | } |
730 | ||
89334c8b | 731 | static void virtio_ccw_net_instance_init(Object *obj) |
a5cf2bb4 | 732 | { |
89334c8b | 733 | VirtIONetCcw *dev = VIRTIO_NET_CCW(obj); |
c8075caf GA |
734 | |
735 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
736 | TYPE_VIRTIO_NET); | |
0cf63c3e GA |
737 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
738 | "bootindex", &error_abort); | |
a5cf2bb4 CH |
739 | } |
740 | ||
5e5ced38 | 741 | static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 742 | { |
3400c455 FK |
743 | VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev); |
744 | DeviceState *vdev = DEVICE(&dev->vdev); | |
5e5ced38 | 745 | |
3400c455 | 746 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 747 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
748 | } |
749 | ||
3400c455 | 750 | static void virtio_ccw_blk_instance_init(Object *obj) |
a5cf2bb4 | 751 | { |
3400c455 | 752 | VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj); |
c8075caf GA |
753 | |
754 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
755 | TYPE_VIRTIO_BLK); | |
467b3f33 SH |
756 | object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread", |
757 | &error_abort); | |
aeb98ddc GA |
758 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
759 | "bootindex", &error_abort); | |
a5cf2bb4 CH |
760 | } |
761 | ||
5e5ced38 | 762 | static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 763 | { |
6acf69cd FK |
764 | VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev); |
765 | DeviceState *vdev = DEVICE(&dev->vdev); | |
80270a19 FK |
766 | DeviceState *proxy = DEVICE(ccw_dev); |
767 | char *bus_name; | |
768 | ||
769 | /* | |
770 | * For command line compatibility, this sets the virtio-serial-device bus | |
771 | * name as before. | |
772 | */ | |
773 | if (proxy->id) { | |
774 | bus_name = g_strdup_printf("%s.0", proxy->id); | |
775 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
776 | g_free(bus_name); | |
777 | } | |
a5cf2bb4 | 778 | |
6acf69cd | 779 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 780 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
781 | } |
782 | ||
6acf69cd FK |
783 | |
784 | static void virtio_ccw_serial_instance_init(Object *obj) | |
a5cf2bb4 | 785 | { |
6acf69cd | 786 | VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj); |
c8075caf GA |
787 | |
788 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
789 | TYPE_VIRTIO_SERIAL); | |
a5cf2bb4 CH |
790 | } |
791 | ||
5e5ced38 | 792 | static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 793 | { |
30bff6a0 FK |
794 | VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev); |
795 | DeviceState *vdev = DEVICE(&dev->vdev); | |
a5cf2bb4 | 796 | |
30bff6a0 | 797 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 798 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
799 | } |
800 | ||
30bff6a0 | 801 | static void virtio_ccw_balloon_instance_init(Object *obj) |
a5cf2bb4 | 802 | { |
30bff6a0 | 803 | VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj); |
ecfa60e3 | 804 | |
a6027b0f DL |
805 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
806 | TYPE_VIRTIO_BALLOON); | |
ecfa60e3 SZ |
807 | object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), |
808 | "guest-stats", &error_abort); | |
809 | object_property_add_alias(obj, "guest-stats-polling-interval", | |
810 | OBJECT(&dev->vdev), | |
811 | "guest-stats-polling-interval", &error_abort); | |
a5cf2bb4 CH |
812 | } |
813 | ||
5e5ced38 | 814 | static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 815 | { |
c908ea10 FK |
816 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev); |
817 | DeviceState *vdev = DEVICE(&dev->vdev); | |
6f32a6b4 FK |
818 | DeviceState *qdev = DEVICE(ccw_dev); |
819 | char *bus_name; | |
820 | ||
821 | /* | |
822 | * For command line compatibility, this sets the virtio-scsi-device bus | |
823 | * name as before. | |
824 | */ | |
825 | if (qdev->id) { | |
826 | bus_name = g_strdup_printf("%s.0", qdev->id); | |
827 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
828 | g_free(bus_name); | |
829 | } | |
a5cf2bb4 | 830 | |
c908ea10 | 831 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
6b62d961 | 832 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
a5cf2bb4 CH |
833 | } |
834 | ||
c908ea10 | 835 | static void virtio_ccw_scsi_instance_init(Object *obj) |
a5cf2bb4 | 836 | { |
c908ea10 | 837 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj); |
c8075caf GA |
838 | |
839 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
840 | TYPE_VIRTIO_SCSI); | |
19d339f1 FZ |
841 | object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev), "iothread", |
842 | &error_abort); | |
a5cf2bb4 CH |
843 | } |
844 | ||
ccf6916c | 845 | #ifdef CONFIG_VHOST_SCSI |
5e5ced38 | 846 | static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
ccf6916c PB |
847 | { |
848 | VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev); | |
849 | DeviceState *vdev = DEVICE(&dev->vdev); | |
850 | ||
851 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
6b62d961 | 852 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
ccf6916c PB |
853 | } |
854 | ||
855 | static void vhost_ccw_scsi_instance_init(Object *obj) | |
856 | { | |
857 | VHostSCSICcw *dev = VHOST_SCSI_CCW(obj); | |
c8075caf GA |
858 | |
859 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
860 | TYPE_VHOST_SCSI); | |
ccf6916c PB |
861 | } |
862 | #endif | |
863 | ||
5e5ced38 | 864 | static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
2362ecc5 | 865 | { |
2db26d4c FK |
866 | VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev); |
867 | DeviceState *vdev = DEVICE(&dev->vdev); | |
5e5ced38 | 868 | Error *err = NULL; |
2362ecc5 | 869 | |
2db26d4c | 870 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
5e5ced38 MA |
871 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); |
872 | if (err) { | |
873 | error_propagate(errp, err); | |
874 | return; | |
2362ecc5 | 875 | } |
2362ecc5 | 876 | |
2db26d4c | 877 | object_property_set_link(OBJECT(dev), |
5b456438 | 878 | OBJECT(dev->vdev.conf.rng), "rng", |
2db26d4c | 879 | NULL); |
2362ecc5 CH |
880 | } |
881 | ||
a5cf2bb4 CH |
882 | /* DeviceState to VirtioCcwDevice. Note: used on datapath, |
883 | * be careful and test performance if you change this. | |
884 | */ | |
885 | static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d) | |
886 | { | |
b804e8a6 JL |
887 | CcwDevice *ccw_dev = to_ccw_dev_fast(d); |
888 | ||
889 | return container_of(ccw_dev, VirtioCcwDevice, parent_obj); | |
a5cf2bb4 CH |
890 | } |
891 | ||
7e749462 CH |
892 | static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc, |
893 | uint8_t to_be_set) | |
894 | { | |
895 | uint8_t ind_old, ind_new; | |
896 | hwaddr len = 1; | |
897 | uint8_t *ind_addr; | |
898 | ||
899 | ind_addr = cpu_physical_memory_map(ind_loc, &len, 1); | |
900 | if (!ind_addr) { | |
901 | error_report("%s(%x.%x.%04x): unable to access indicator", | |
902 | __func__, sch->cssid, sch->ssid, sch->schid); | |
903 | return -1; | |
904 | } | |
905 | do { | |
906 | ind_old = *ind_addr; | |
907 | ind_new = ind_old | to_be_set; | |
908 | } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old); | |
06409bd9 | 909 | trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new); |
7e749462 CH |
910 | cpu_physical_memory_unmap(ind_addr, len, 1, len); |
911 | ||
912 | return ind_old; | |
913 | } | |
914 | ||
a5cf2bb4 CH |
915 | static void virtio_ccw_notify(DeviceState *d, uint16_t vector) |
916 | { | |
917 | VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d); | |
b804e8a6 JL |
918 | CcwDevice *ccw_dev = to_ccw_dev_fast(d); |
919 | SubchDev *sch = ccw_dev->sch; | |
a5cf2bb4 CH |
920 | uint64_t indicators; |
921 | ||
1789f4e3 HP |
922 | /* queue indicators + secondary indicators */ |
923 | if (vector >= VIRTIO_CCW_QUEUE_MAX + 64) { | |
a5cf2bb4 CH |
924 | return; |
925 | } | |
926 | ||
8dfbaa6a | 927 | if (vector < VIRTIO_CCW_QUEUE_MAX) { |
7c486976 CH |
928 | if (!dev->indicators) { |
929 | return; | |
930 | } | |
7e749462 CH |
931 | if (sch->thinint_active) { |
932 | /* | |
933 | * In the adapter interrupt case, indicators points to a | |
934 | * memory area that may be (way) larger than 64 bit and | |
935 | * ind_bit indicates the start of the indicators in a big | |
936 | * endian notation. | |
937 | */ | |
d426d9fb CH |
938 | uint64_t ind_bit = dev->routes.adapter.ind_offset; |
939 | ||
7bca3892 | 940 | virtio_set_ind_atomic(sch, dev->indicators->addr + |
d426d9fb CH |
941 | (ind_bit + vector) / 8, |
942 | 0x80 >> ((ind_bit + vector) % 8)); | |
7bca3892 | 943 | if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr, |
7e749462 CH |
944 | 0x01)) { |
945 | css_adapter_interrupt(dev->thinint_isc); | |
946 | } | |
947 | } else { | |
42874d3a PM |
948 | indicators = address_space_ldq(&address_space_memory, |
949 | dev->indicators->addr, | |
950 | MEMTXATTRS_UNSPECIFIED, | |
951 | NULL); | |
7e749462 | 952 | indicators |= 1ULL << vector; |
42874d3a PM |
953 | address_space_stq(&address_space_memory, dev->indicators->addr, |
954 | indicators, MEMTXATTRS_UNSPECIFIED, NULL); | |
7e749462 CH |
955 | css_conditional_io_interrupt(sch); |
956 | } | |
a5cf2bb4 | 957 | } else { |
7c486976 CH |
958 | if (!dev->indicators2) { |
959 | return; | |
960 | } | |
a5cf2bb4 | 961 | vector = 0; |
42874d3a PM |
962 | indicators = address_space_ldq(&address_space_memory, |
963 | dev->indicators2->addr, | |
964 | MEMTXATTRS_UNSPECIFIED, | |
965 | NULL); | |
19380b1b | 966 | indicators |= 1ULL << vector; |
42874d3a PM |
967 | address_space_stq(&address_space_memory, dev->indicators2->addr, |
968 | indicators, MEMTXATTRS_UNSPECIFIED, NULL); | |
7e749462 | 969 | css_conditional_io_interrupt(sch); |
a5cf2bb4 | 970 | } |
a5cf2bb4 CH |
971 | } |
972 | ||
a5cf2bb4 CH |
973 | static void virtio_ccw_reset(DeviceState *d) |
974 | { | |
975 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
f24a6840 | 976 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
b804e8a6 | 977 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
a5cf2bb4 | 978 | |
fa8b0ca5 | 979 | virtio_ccw_reset_virtio(dev, vdev); |
b804e8a6 | 980 | css_reset_sch(ccw_dev->sch); |
a5cf2bb4 CH |
981 | } |
982 | ||
b4436a0b CH |
983 | static void virtio_ccw_vmstate_change(DeviceState *d, bool running) |
984 | { | |
985 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
986 | ||
987 | if (running) { | |
988 | virtio_ccw_start_ioeventfd(dev); | |
989 | } else { | |
990 | virtio_ccw_stop_ioeventfd(dev); | |
991 | } | |
992 | } | |
993 | ||
320ce850 CH |
994 | static bool virtio_ccw_query_guest_notifiers(DeviceState *d) |
995 | { | |
b804e8a6 | 996 | CcwDevice *dev = CCW_DEVICE(d); |
320ce850 CH |
997 | |
998 | return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA); | |
999 | } | |
1000 | ||
d426d9fb CH |
1001 | static int virtio_ccw_get_mappings(VirtioCcwDevice *dev) |
1002 | { | |
1003 | int r; | |
b804e8a6 | 1004 | CcwDevice *ccw_dev = CCW_DEVICE(dev); |
d426d9fb | 1005 | |
b804e8a6 | 1006 | if (!ccw_dev->sch->thinint_active) { |
d426d9fb CH |
1007 | return -EINVAL; |
1008 | } | |
1009 | ||
1010 | r = map_indicator(&dev->routes.adapter, dev->summary_indicator); | |
1011 | if (r) { | |
1012 | return r; | |
1013 | } | |
1014 | r = map_indicator(&dev->routes.adapter, dev->indicators); | |
1015 | if (r) { | |
1016 | return r; | |
1017 | } | |
1018 | dev->routes.adapter.summary_addr = dev->summary_indicator->map; | |
1019 | dev->routes.adapter.ind_addr = dev->indicators->map; | |
1020 | ||
1021 | return 0; | |
1022 | } | |
1023 | ||
1024 | static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs) | |
1025 | { | |
1026 | int i; | |
1027 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1028 | int ret; | |
1029 | S390FLICState *fs = s390_get_flic(); | |
1030 | S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); | |
1031 | ||
1032 | ret = virtio_ccw_get_mappings(dev); | |
1033 | if (ret) { | |
1034 | return ret; | |
1035 | } | |
1036 | for (i = 0; i < nvqs; i++) { | |
1037 | if (!virtio_queue_get_num(vdev, i)) { | |
1038 | break; | |
1039 | } | |
1040 | } | |
1041 | dev->routes.num_routes = i; | |
1042 | return fsc->add_adapter_routes(fs, &dev->routes); | |
1043 | } | |
1044 | ||
1045 | static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs) | |
1046 | { | |
1047 | S390FLICState *fs = s390_get_flic(); | |
1048 | S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); | |
1049 | ||
1050 | fsc->release_adapter_routes(fs, &dev->routes); | |
1051 | } | |
1052 | ||
1053 | static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n) | |
1054 | { | |
1055 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1056 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
1057 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); | |
1058 | ||
1c9b71a7 EA |
1059 | return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL, |
1060 | dev->routes.gsi[n]); | |
d426d9fb CH |
1061 | } |
1062 | ||
1063 | static void virtio_ccw_remove_irqfd(VirtioCcwDevice *dev, int n) | |
1064 | { | |
1065 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1066 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
1067 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); | |
1068 | int ret; | |
1069 | ||
1c9b71a7 EA |
1070 | ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier, |
1071 | dev->routes.gsi[n]); | |
d426d9fb CH |
1072 | assert(ret == 0); |
1073 | } | |
1074 | ||
320ce850 CH |
1075 | static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n, |
1076 | bool assign, bool with_irqfd) | |
1077 | { | |
f24a6840 PB |
1078 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
1079 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
320ce850 | 1080 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); |
f24a6840 | 1081 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
320ce850 CH |
1082 | |
1083 | if (assign) { | |
1084 | int r = event_notifier_init(notifier, 0); | |
1085 | ||
1086 | if (r < 0) { | |
1087 | return r; | |
1088 | } | |
1089 | virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd); | |
d426d9fb CH |
1090 | if (with_irqfd) { |
1091 | r = virtio_ccw_add_irqfd(dev, n); | |
1092 | if (r) { | |
1093 | virtio_queue_set_guest_notifier_fd_handler(vq, false, | |
1094 | with_irqfd); | |
1095 | return r; | |
1096 | } | |
1097 | } | |
1098 | /* | |
1099 | * We do not support individual masking for channel devices, so we | |
1100 | * need to manually trigger any guest masking callbacks here. | |
320ce850 CH |
1101 | */ |
1102 | if (k->guest_notifier_mask) { | |
f24a6840 | 1103 | k->guest_notifier_mask(vdev, n, false); |
320ce850 CH |
1104 | } |
1105 | /* get lost events and re-inject */ | |
1106 | if (k->guest_notifier_pending && | |
f24a6840 | 1107 | k->guest_notifier_pending(vdev, n)) { |
320ce850 CH |
1108 | event_notifier_set(notifier); |
1109 | } | |
1110 | } else { | |
1111 | if (k->guest_notifier_mask) { | |
f24a6840 | 1112 | k->guest_notifier_mask(vdev, n, true); |
320ce850 | 1113 | } |
d426d9fb CH |
1114 | if (with_irqfd) { |
1115 | virtio_ccw_remove_irqfd(dev, n); | |
1116 | } | |
320ce850 CH |
1117 | virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd); |
1118 | event_notifier_cleanup(notifier); | |
1119 | } | |
1120 | return 0; | |
1121 | } | |
1122 | ||
1123 | static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs, | |
1124 | bool assigned) | |
1125 | { | |
1126 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
f24a6840 | 1127 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
b804e8a6 JL |
1128 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
1129 | bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled(); | |
320ce850 CH |
1130 | int r, n; |
1131 | ||
d426d9fb CH |
1132 | if (with_irqfd && assigned) { |
1133 | /* irq routes need to be set up before assigning irqfds */ | |
1134 | r = virtio_ccw_setup_irqroutes(dev, nvqs); | |
1135 | if (r < 0) { | |
1136 | goto irqroute_error; | |
1137 | } | |
1138 | } | |
320ce850 CH |
1139 | for (n = 0; n < nvqs; n++) { |
1140 | if (!virtio_queue_get_num(vdev, n)) { | |
1141 | break; | |
1142 | } | |
d426d9fb | 1143 | r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd); |
320ce850 CH |
1144 | if (r < 0) { |
1145 | goto assign_error; | |
1146 | } | |
1147 | } | |
d426d9fb CH |
1148 | if (with_irqfd && !assigned) { |
1149 | /* release irq routes after irqfds have been released */ | |
1150 | virtio_ccw_release_irqroutes(dev, nvqs); | |
1151 | } | |
320ce850 CH |
1152 | return 0; |
1153 | ||
1154 | assign_error: | |
1155 | while (--n >= 0) { | |
1156 | virtio_ccw_set_guest_notifier(dev, n, !assigned, false); | |
1157 | } | |
d426d9fb CH |
1158 | irqroute_error: |
1159 | if (with_irqfd && assigned) { | |
1160 | virtio_ccw_release_irqroutes(dev, nvqs); | |
1161 | } | |
320ce850 CH |
1162 | return r; |
1163 | } | |
1164 | ||
bcb2b582 JF |
1165 | static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f) |
1166 | { | |
1167 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1168 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1169 | ||
1170 | qemu_put_be16(f, virtio_queue_vector(vdev, n)); | |
1171 | } | |
1172 | ||
1173 | static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f) | |
1174 | { | |
1175 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1176 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1177 | uint16_t vector; | |
1178 | ||
1179 | qemu_get_be16s(f, &vector); | |
1180 | virtio_queue_set_vector(vdev, n , vector); | |
1181 | ||
1182 | return 0; | |
1183 | } | |
1184 | ||
1185 | static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f) | |
1186 | { | |
1187 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
b804e8a6 JL |
1188 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
1189 | SubchDev *s = ccw_dev->sch; | |
2a72ea5f | 1190 | VirtIODevice *vdev = virtio_ccw_get_vdev(s); |
bcb2b582 JF |
1191 | |
1192 | subch_device_save(s, f); | |
1193 | if (dev->indicators != NULL) { | |
1194 | qemu_put_be32(f, dev->indicators->len); | |
1195 | qemu_put_be64(f, dev->indicators->addr); | |
1196 | } else { | |
1197 | qemu_put_be32(f, 0); | |
1198 | qemu_put_be64(f, 0UL); | |
1199 | } | |
1200 | if (dev->indicators2 != NULL) { | |
1201 | qemu_put_be32(f, dev->indicators2->len); | |
1202 | qemu_put_be64(f, dev->indicators2->addr); | |
1203 | } else { | |
1204 | qemu_put_be32(f, 0); | |
1205 | qemu_put_be64(f, 0UL); | |
1206 | } | |
1207 | if (dev->summary_indicator != NULL) { | |
1208 | qemu_put_be32(f, dev->summary_indicator->len); | |
1209 | qemu_put_be64(f, dev->summary_indicator->addr); | |
1210 | } else { | |
1211 | qemu_put_be32(f, 0); | |
1212 | qemu_put_be64(f, 0UL); | |
1213 | } | |
2a72ea5f | 1214 | qemu_put_be16(f, vdev->config_vector); |
bcb2b582 JF |
1215 | qemu_put_be64(f, dev->routes.adapter.ind_offset); |
1216 | qemu_put_byte(f, dev->thinint_isc); | |
213941d7 | 1217 | qemu_put_be32(f, dev->revision); |
bcb2b582 JF |
1218 | } |
1219 | ||
1220 | static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f) | |
1221 | { | |
1222 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
b804e8a6 JL |
1223 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
1224 | SubchDev *s = ccw_dev->sch; | |
2a72ea5f | 1225 | VirtIODevice *vdev = virtio_ccw_get_vdev(s); |
bcb2b582 JF |
1226 | int len; |
1227 | ||
1228 | s->driver_data = dev; | |
1229 | subch_device_load(s, f); | |
1230 | len = qemu_get_be32(f); | |
1231 | if (len != 0) { | |
1232 | dev->indicators = get_indicator(qemu_get_be64(f), len); | |
1233 | } else { | |
1234 | qemu_get_be64(f); | |
1235 | dev->indicators = NULL; | |
1236 | } | |
1237 | len = qemu_get_be32(f); | |
1238 | if (len != 0) { | |
1239 | dev->indicators2 = get_indicator(qemu_get_be64(f), len); | |
1240 | } else { | |
1241 | qemu_get_be64(f); | |
1242 | dev->indicators2 = NULL; | |
1243 | } | |
1244 | len = qemu_get_be32(f); | |
1245 | if (len != 0) { | |
1246 | dev->summary_indicator = get_indicator(qemu_get_be64(f), len); | |
1247 | } else { | |
1248 | qemu_get_be64(f); | |
1249 | dev->summary_indicator = NULL; | |
1250 | } | |
2a72ea5f | 1251 | qemu_get_be16s(f, &vdev->config_vector); |
bcb2b582 JF |
1252 | dev->routes.adapter.ind_offset = qemu_get_be64(f); |
1253 | dev->thinint_isc = qemu_get_byte(f); | |
2af9170c | 1254 | dev->revision = qemu_get_be32(f); |
bcb2b582 JF |
1255 | if (s->thinint_active) { |
1256 | return css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO, | |
1257 | dev->thinint_isc, true, false, | |
1258 | &dev->routes.adapter.adapter_id); | |
1259 | } | |
1260 | ||
1261 | return 0; | |
1262 | } | |
1263 | ||
fb846a09 | 1264 | /* This is called by virtio-bus just after the device is plugged. */ |
e8398045 | 1265 | static void virtio_ccw_device_plugged(DeviceState *d, Error **errp) |
fb846a09 CH |
1266 | { |
1267 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
10ceaa1e | 1268 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
b804e8a6 JL |
1269 | CcwDevice *ccw_dev = CCW_DEVICE(d); |
1270 | SubchDev *sch = ccw_dev->sch; | |
10ceaa1e JW |
1271 | int n = virtio_get_num_queues(vdev); |
1272 | ||
1273 | if (virtio_get_num_queues(vdev) > VIRTIO_CCW_QUEUE_MAX) { | |
b34aee54 | 1274 | error_setg(errp, "The number of virtqueues %d " |
10ceaa1e JW |
1275 | "exceeds ccw limit %d", n, |
1276 | VIRTIO_CCW_QUEUE_MAX); | |
1277 | return; | |
1278 | } | |
fb846a09 | 1279 | |
a499973f AJ |
1280 | if (!kvm_eventfds_enabled()) { |
1281 | dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD; | |
1282 | } | |
1283 | ||
fb846a09 CH |
1284 | sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus); |
1285 | ||
542571d5 CH |
1286 | if (dev->max_rev >= 1) { |
1287 | virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1); | |
1288 | } | |
1289 | ||
fb846a09 CH |
1290 | css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, |
1291 | d->hotplugged, 1); | |
1292 | } | |
1293 | ||
11380b36 CH |
1294 | static void virtio_ccw_post_plugged(DeviceState *d, Error **errp) |
1295 | { | |
1296 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1297 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1298 | ||
1299 | if (!virtio_host_has_feature(vdev, VIRTIO_F_VERSION_1)) { | |
1300 | /* A backend didn't support modern virtio. */ | |
1301 | dev->max_rev = 0; | |
1302 | } | |
1303 | } | |
1304 | ||
fb846a09 CH |
1305 | static void virtio_ccw_device_unplugged(DeviceState *d) |
1306 | { | |
1307 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1308 | ||
1309 | virtio_ccw_stop_ioeventfd(dev); | |
1310 | } | |
a5cf2bb4 CH |
1311 | /**************** Virtio-ccw Bus Device Descriptions *******************/ |
1312 | ||
a5cf2bb4 | 1313 | static Property virtio_ccw_net_properties[] = { |
b804e8a6 | 1314 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1315 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1316 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1317 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1318 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1319 | DEFINE_PROP_END_OF_LIST(), |
1320 | }; | |
1321 | ||
1322 | static void virtio_ccw_net_class_init(ObjectClass *klass, void *data) | |
1323 | { | |
1324 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1325 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1326 | ||
5e5ced38 | 1327 | k->realize = virtio_ccw_net_realize; |
89334c8b | 1328 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1329 | dc->reset = virtio_ccw_reset; |
1330 | dc->props = virtio_ccw_net_properties; | |
cd20d616 | 1331 | set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); |
a5cf2bb4 CH |
1332 | } |
1333 | ||
1334 | static const TypeInfo virtio_ccw_net = { | |
89334c8b | 1335 | .name = TYPE_VIRTIO_NET_CCW, |
a5cf2bb4 | 1336 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
89334c8b FK |
1337 | .instance_size = sizeof(VirtIONetCcw), |
1338 | .instance_init = virtio_ccw_net_instance_init, | |
a5cf2bb4 CH |
1339 | .class_init = virtio_ccw_net_class_init, |
1340 | }; | |
1341 | ||
1342 | static Property virtio_ccw_blk_properties[] = { | |
b804e8a6 | 1343 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1344 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1345 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1346 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1347 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1348 | DEFINE_PROP_END_OF_LIST(), |
1349 | }; | |
1350 | ||
1351 | static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data) | |
1352 | { | |
1353 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1354 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1355 | ||
5e5ced38 | 1356 | k->realize = virtio_ccw_blk_realize; |
3400c455 | 1357 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1358 | dc->reset = virtio_ccw_reset; |
1359 | dc->props = virtio_ccw_blk_properties; | |
cd20d616 | 1360 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
a5cf2bb4 CH |
1361 | } |
1362 | ||
1363 | static const TypeInfo virtio_ccw_blk = { | |
3400c455 | 1364 | .name = TYPE_VIRTIO_BLK_CCW, |
a5cf2bb4 | 1365 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
3400c455 FK |
1366 | .instance_size = sizeof(VirtIOBlkCcw), |
1367 | .instance_init = virtio_ccw_blk_instance_init, | |
a5cf2bb4 CH |
1368 | .class_init = virtio_ccw_blk_class_init, |
1369 | }; | |
1370 | ||
1371 | static Property virtio_ccw_serial_properties[] = { | |
b804e8a6 | 1372 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1373 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1374 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1375 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1376 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1377 | DEFINE_PROP_END_OF_LIST(), |
1378 | }; | |
1379 | ||
1380 | static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data) | |
1381 | { | |
1382 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1383 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1384 | ||
5e5ced38 | 1385 | k->realize = virtio_ccw_serial_realize; |
6acf69cd | 1386 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1387 | dc->reset = virtio_ccw_reset; |
1388 | dc->props = virtio_ccw_serial_properties; | |
cd20d616 | 1389 | set_bit(DEVICE_CATEGORY_INPUT, dc->categories); |
a5cf2bb4 CH |
1390 | } |
1391 | ||
1392 | static const TypeInfo virtio_ccw_serial = { | |
6acf69cd | 1393 | .name = TYPE_VIRTIO_SERIAL_CCW, |
a5cf2bb4 | 1394 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
6acf69cd FK |
1395 | .instance_size = sizeof(VirtioSerialCcw), |
1396 | .instance_init = virtio_ccw_serial_instance_init, | |
a5cf2bb4 CH |
1397 | .class_init = virtio_ccw_serial_class_init, |
1398 | }; | |
1399 | ||
1400 | static Property virtio_ccw_balloon_properties[] = { | |
b804e8a6 | 1401 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1402 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1403 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1404 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1405 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1406 | DEFINE_PROP_END_OF_LIST(), |
1407 | }; | |
1408 | ||
1409 | static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data) | |
1410 | { | |
1411 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1412 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1413 | ||
5e5ced38 | 1414 | k->realize = virtio_ccw_balloon_realize; |
30bff6a0 | 1415 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1416 | dc->reset = virtio_ccw_reset; |
1417 | dc->props = virtio_ccw_balloon_properties; | |
cd20d616 | 1418 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
a5cf2bb4 CH |
1419 | } |
1420 | ||
1421 | static const TypeInfo virtio_ccw_balloon = { | |
30bff6a0 | 1422 | .name = TYPE_VIRTIO_BALLOON_CCW, |
a5cf2bb4 | 1423 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
30bff6a0 FK |
1424 | .instance_size = sizeof(VirtIOBalloonCcw), |
1425 | .instance_init = virtio_ccw_balloon_instance_init, | |
a5cf2bb4 CH |
1426 | .class_init = virtio_ccw_balloon_class_init, |
1427 | }; | |
1428 | ||
1429 | static Property virtio_ccw_scsi_properties[] = { | |
b804e8a6 | 1430 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1431 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1432 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1433 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1434 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1435 | DEFINE_PROP_END_OF_LIST(), |
1436 | }; | |
1437 | ||
1438 | static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data) | |
1439 | { | |
1440 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1441 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1442 | ||
5e5ced38 | 1443 | k->realize = virtio_ccw_scsi_realize; |
c908ea10 | 1444 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1445 | dc->reset = virtio_ccw_reset; |
1446 | dc->props = virtio_ccw_scsi_properties; | |
cd20d616 | 1447 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
a5cf2bb4 CH |
1448 | } |
1449 | ||
1450 | static const TypeInfo virtio_ccw_scsi = { | |
c908ea10 | 1451 | .name = TYPE_VIRTIO_SCSI_CCW, |
a5cf2bb4 | 1452 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
c908ea10 FK |
1453 | .instance_size = sizeof(VirtIOSCSICcw), |
1454 | .instance_init = virtio_ccw_scsi_instance_init, | |
a5cf2bb4 CH |
1455 | .class_init = virtio_ccw_scsi_class_init, |
1456 | }; | |
1457 | ||
ccf6916c PB |
1458 | #ifdef CONFIG_VHOST_SCSI |
1459 | static Property vhost_ccw_scsi_properties[] = { | |
b804e8a6 | 1460 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
542571d5 CH |
1461 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1462 | VIRTIO_CCW_MAX_REV), | |
ccf6916c PB |
1463 | DEFINE_PROP_END_OF_LIST(), |
1464 | }; | |
1465 | ||
1466 | static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data) | |
1467 | { | |
1468 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1469 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1470 | ||
5e5ced38 | 1471 | k->realize = vhost_ccw_scsi_realize; |
ccf6916c PB |
1472 | k->exit = virtio_ccw_exit; |
1473 | dc->reset = virtio_ccw_reset; | |
1474 | dc->props = vhost_ccw_scsi_properties; | |
cd20d616 | 1475 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
ccf6916c PB |
1476 | } |
1477 | ||
1478 | static const TypeInfo vhost_ccw_scsi = { | |
1479 | .name = TYPE_VHOST_SCSI_CCW, | |
1480 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
4b7757ba | 1481 | .instance_size = sizeof(VHostSCSICcw), |
ccf6916c PB |
1482 | .instance_init = vhost_ccw_scsi_instance_init, |
1483 | .class_init = vhost_ccw_scsi_class_init, | |
1484 | }; | |
1485 | #endif | |
1486 | ||
2db26d4c | 1487 | static void virtio_ccw_rng_instance_init(Object *obj) |
2362ecc5 | 1488 | { |
2db26d4c | 1489 | VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj); |
c8075caf GA |
1490 | |
1491 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1492 | TYPE_VIRTIO_RNG); | |
cbd5ac69 PB |
1493 | object_property_add_alias(obj, "rng", OBJECT(&dev->vdev), |
1494 | "rng", &error_abort); | |
2362ecc5 CH |
1495 | } |
1496 | ||
1497 | static Property virtio_ccw_rng_properties[] = { | |
b804e8a6 | 1498 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
b4436a0b CH |
1499 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1500 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1501 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1502 | VIRTIO_CCW_MAX_REV), | |
2362ecc5 CH |
1503 | DEFINE_PROP_END_OF_LIST(), |
1504 | }; | |
1505 | ||
1506 | static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data) | |
1507 | { | |
1508 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1509 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1510 | ||
5e5ced38 | 1511 | k->realize = virtio_ccw_rng_realize; |
2db26d4c | 1512 | k->exit = virtio_ccw_exit; |
2362ecc5 CH |
1513 | dc->reset = virtio_ccw_reset; |
1514 | dc->props = virtio_ccw_rng_properties; | |
cd20d616 | 1515 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
2362ecc5 CH |
1516 | } |
1517 | ||
1518 | static const TypeInfo virtio_ccw_rng = { | |
2db26d4c | 1519 | .name = TYPE_VIRTIO_RNG_CCW, |
2362ecc5 | 1520 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
2db26d4c FK |
1521 | .instance_size = sizeof(VirtIORNGCcw), |
1522 | .instance_init = virtio_ccw_rng_instance_init, | |
2362ecc5 CH |
1523 | .class_init = virtio_ccw_rng_class_init, |
1524 | }; | |
1525 | ||
5e5ced38 | 1526 | static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp) |
a5cf2bb4 CH |
1527 | { |
1528 | VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; | |
a5cf2bb4 | 1529 | |
1bf4d7aa | 1530 | virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev); |
1fa75523 | 1531 | virtio_ccw_device_realize(_dev, errp); |
a5cf2bb4 CH |
1532 | } |
1533 | ||
1534 | static int virtio_ccw_busdev_exit(DeviceState *dev) | |
1535 | { | |
1536 | VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; | |
1537 | VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev); | |
1538 | ||
1539 | return _info->exit(_dev); | |
1540 | } | |
1541 | ||
b804e8a6 JL |
1542 | static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev, |
1543 | DeviceState *dev, Error **errp) | |
a5cf2bb4 | 1544 | { |
b804e8a6 | 1545 | VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev); |
a5cf2bb4 | 1546 | |
0b81c1ef | 1547 | virtio_ccw_stop_ioeventfd(_dev); |
a5cf2bb4 CH |
1548 | } |
1549 | ||
1550 | static void virtio_ccw_device_class_init(ObjectClass *klass, void *data) | |
1551 | { | |
1552 | DeviceClass *dc = DEVICE_CLASS(klass); | |
b804e8a6 | 1553 | CCWDeviceClass *k = CCW_DEVICE_CLASS(dc); |
a5cf2bb4 | 1554 | |
b804e8a6 | 1555 | k->unplug = virtio_ccw_busdev_unplug; |
5e5ced38 | 1556 | dc->realize = virtio_ccw_busdev_realize; |
a5cf2bb4 | 1557 | dc->exit = virtio_ccw_busdev_exit; |
a5cf2bb4 | 1558 | dc->bus_type = TYPE_VIRTUAL_CSS_BUS; |
a5cf2bb4 CH |
1559 | } |
1560 | ||
1561 | static const TypeInfo virtio_ccw_device_info = { | |
1562 | .name = TYPE_VIRTIO_CCW_DEVICE, | |
b804e8a6 | 1563 | .parent = TYPE_CCW_DEVICE, |
a5cf2bb4 CH |
1564 | .instance_size = sizeof(VirtioCcwDevice), |
1565 | .class_init = virtio_ccw_device_class_init, | |
1566 | .class_size = sizeof(VirtIOCCWDeviceClass), | |
1567 | .abstract = true, | |
1568 | }; | |
1569 | ||
a5cf2bb4 CH |
1570 | /* virtio-ccw-bus */ |
1571 | ||
1bf4d7aa AF |
1572 | static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, |
1573 | VirtioCcwDevice *dev) | |
a5cf2bb4 CH |
1574 | { |
1575 | DeviceState *qdev = DEVICE(dev); | |
f4dd69aa | 1576 | char virtio_bus_name[] = "virtio-bus"; |
a5cf2bb4 | 1577 | |
fb17dfe0 AF |
1578 | qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS, |
1579 | qdev, virtio_bus_name); | |
a5cf2bb4 CH |
1580 | } |
1581 | ||
1582 | static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data) | |
1583 | { | |
1584 | VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); | |
1585 | BusClass *bus_class = BUS_CLASS(klass); | |
1586 | ||
1587 | bus_class->max_dev = 1; | |
1588 | k->notify = virtio_ccw_notify; | |
b4436a0b | 1589 | k->vmstate_change = virtio_ccw_vmstate_change; |
320ce850 | 1590 | k->query_guest_notifiers = virtio_ccw_query_guest_notifiers; |
320ce850 | 1591 | k->set_guest_notifiers = virtio_ccw_set_guest_notifiers; |
bcb2b582 JF |
1592 | k->save_queue = virtio_ccw_save_queue; |
1593 | k->load_queue = virtio_ccw_load_queue; | |
1594 | k->save_config = virtio_ccw_save_config; | |
1595 | k->load_config = virtio_ccw_load_config; | |
fb846a09 | 1596 | k->device_plugged = virtio_ccw_device_plugged; |
11380b36 | 1597 | k->post_plugged = virtio_ccw_post_plugged; |
fb846a09 | 1598 | k->device_unplugged = virtio_ccw_device_unplugged; |
7c55f68a CH |
1599 | k->ioeventfd_started = virtio_ccw_ioeventfd_started; |
1600 | k->ioeventfd_set_started = virtio_ccw_ioeventfd_set_started; | |
1601 | k->ioeventfd_disabled = virtio_ccw_ioeventfd_disabled; | |
1602 | k->ioeventfd_set_disabled = virtio_ccw_ioeventfd_set_disabled; | |
1603 | k->ioeventfd_assign = virtio_ccw_ioeventfd_assign; | |
a5cf2bb4 CH |
1604 | } |
1605 | ||
1606 | static const TypeInfo virtio_ccw_bus_info = { | |
1607 | .name = TYPE_VIRTIO_CCW_BUS, | |
1608 | .parent = TYPE_VIRTIO_BUS, | |
1609 | .instance_size = sizeof(VirtioCcwBusState), | |
1610 | .class_init = virtio_ccw_bus_class_init, | |
1611 | }; | |
1612 | ||
de6a9218 PM |
1613 | #ifdef CONFIG_VIRTFS |
1614 | static Property virtio_ccw_9p_properties[] = { | |
b804e8a6 | 1615 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), |
de6a9218 PM |
1616 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1617 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1618 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1619 | VIRTIO_CCW_MAX_REV), | |
de6a9218 PM |
1620 | DEFINE_PROP_END_OF_LIST(), |
1621 | }; | |
1622 | ||
1623 | static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp) | |
1624 | { | |
1625 | V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev); | |
1626 | DeviceState *vdev = DEVICE(&dev->vdev); | |
de6a9218 PM |
1627 | |
1628 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
6b62d961 | 1629 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
de6a9218 PM |
1630 | } |
1631 | ||
1632 | static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data) | |
1633 | { | |
1634 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1635 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1636 | ||
1637 | k->exit = virtio_ccw_exit; | |
1638 | k->realize = virtio_ccw_9p_realize; | |
1639 | dc->reset = virtio_ccw_reset; | |
1640 | dc->props = virtio_ccw_9p_properties; | |
1641 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); | |
1642 | } | |
1643 | ||
1644 | static void virtio_ccw_9p_instance_init(Object *obj) | |
1645 | { | |
1646 | V9fsCCWState *dev = VIRTIO_9P_CCW(obj); | |
1647 | ||
1648 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1649 | TYPE_VIRTIO_9P); | |
1650 | } | |
1651 | ||
1652 | static const TypeInfo virtio_ccw_9p_info = { | |
1653 | .name = TYPE_VIRTIO_9P_CCW, | |
1654 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
1655 | .instance_size = sizeof(V9fsCCWState), | |
1656 | .instance_init = virtio_ccw_9p_instance_init, | |
1657 | .class_init = virtio_ccw_9p_class_init, | |
1658 | }; | |
1659 | #endif | |
1660 | ||
fc0b9b0e SH |
1661 | #ifdef CONFIG_VHOST_VSOCK |
1662 | ||
1663 | static Property vhost_vsock_ccw_properties[] = { | |
1664 | DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id), | |
1665 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, | |
1666 | VIRTIO_CCW_MAX_REV), | |
1667 | DEFINE_PROP_END_OF_LIST(), | |
1668 | }; | |
1669 | ||
1670 | static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp) | |
1671 | { | |
1672 | VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev); | |
1673 | DeviceState *vdev = DEVICE(&dev->vdev); | |
1674 | Error *err = NULL; | |
1675 | ||
1676 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
1677 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); | |
1678 | if (err) { | |
1679 | error_propagate(errp, err); | |
1680 | } | |
1681 | } | |
1682 | ||
1683 | static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data) | |
1684 | { | |
1685 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1686 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1687 | ||
1688 | k->realize = vhost_vsock_ccw_realize; | |
1689 | k->exit = virtio_ccw_exit; | |
1690 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); | |
1691 | dc->props = vhost_vsock_ccw_properties; | |
1692 | dc->reset = virtio_ccw_reset; | |
1693 | } | |
1694 | ||
1695 | static void vhost_vsock_ccw_instance_init(Object *obj) | |
1696 | { | |
1697 | VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj); | |
1698 | ||
1699 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1700 | TYPE_VHOST_VSOCK); | |
1701 | } | |
1702 | ||
1703 | static const TypeInfo vhost_vsock_ccw_info = { | |
1704 | .name = TYPE_VHOST_VSOCK_CCW, | |
1705 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
1706 | .instance_size = sizeof(VHostVSockCCWState), | |
1707 | .instance_init = vhost_vsock_ccw_instance_init, | |
1708 | .class_init = vhost_vsock_ccw_class_init, | |
1709 | }; | |
1710 | #endif | |
1711 | ||
a5cf2bb4 CH |
1712 | static void virtio_ccw_register(void) |
1713 | { | |
1714 | type_register_static(&virtio_ccw_bus_info); | |
a5cf2bb4 CH |
1715 | type_register_static(&virtio_ccw_device_info); |
1716 | type_register_static(&virtio_ccw_serial); | |
1717 | type_register_static(&virtio_ccw_blk); | |
1718 | type_register_static(&virtio_ccw_net); | |
1719 | type_register_static(&virtio_ccw_balloon); | |
1720 | type_register_static(&virtio_ccw_scsi); | |
b702d2ae | 1721 | #ifdef CONFIG_VHOST_SCSI |
ccf6916c | 1722 | type_register_static(&vhost_ccw_scsi); |
b702d2ae | 1723 | #endif |
2362ecc5 | 1724 | type_register_static(&virtio_ccw_rng); |
de6a9218 PM |
1725 | #ifdef CONFIG_VIRTFS |
1726 | type_register_static(&virtio_ccw_9p_info); | |
1727 | #endif | |
fc0b9b0e SH |
1728 | #ifdef CONFIG_VHOST_VSOCK |
1729 | type_register_static(&vhost_vsock_ccw_info); | |
1730 | #endif | |
a5cf2bb4 CH |
1731 | } |
1732 | ||
1733 | type_init(virtio_ccw_register) |