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Commit | Line | Data |
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bbf5c878 MR |
1 | /* |
2 | * QEMU SPAPR Dynamic Reconfiguration Connector Implementation | |
3 | * | |
4 | * Copyright IBM Corp. 2014 | |
5 | * | |
6 | * Authors: | |
7 | * Michael Roth <mdroth@linux.vnet.ibm.com> | |
8 | * | |
9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
10 | * See the COPYING file in the top-level directory. | |
11 | */ | |
12 | ||
0d75590d | 13 | #include "qemu/osdep.h" |
da34e65c | 14 | #include "qapi/error.h" |
4771d756 | 15 | #include "cpu.h" |
f348b6d1 | 16 | #include "qemu/cutils.h" |
bbf5c878 MR |
17 | #include "hw/ppc/spapr_drc.h" |
18 | #include "qom/object.h" | |
19 | #include "hw/qdev.h" | |
20 | #include "qapi/visitor.h" | |
21 | #include "qemu/error-report.h" | |
0cb688d2 | 22 | #include "hw/ppc/spapr.h" /* for RTAS return codes */ |
31834723 | 23 | #include "hw/pci-host/spapr.h" /* spapr_phb_remove_pci_device_cb callback */ |
24ac7755 | 24 | #include "trace.h" |
bbf5c878 MR |
25 | |
26 | #define DRC_CONTAINER_PATH "/dr-connector" | |
27 | #define DRC_INDEX_TYPE_SHIFT 28 | |
627c2ef7 | 28 | #define DRC_INDEX_ID_MASK ((1ULL << DRC_INDEX_TYPE_SHIFT) - 1) |
bbf5c878 | 29 | |
2d335818 DG |
30 | sPAPRDRConnectorType spapr_drc_type(sPAPRDRConnector *drc) |
31 | { | |
32 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
33 | ||
34 | return 1 << drck->typeshift; | |
35 | } | |
36 | ||
0b55aa91 | 37 | uint32_t spapr_drc_index(sPAPRDRConnector *drc) |
bbf5c878 | 38 | { |
2d335818 DG |
39 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
40 | ||
bbf5c878 MR |
41 | /* no set format for a drc index: it only needs to be globally |
42 | * unique. this is how we encode the DRC type on bare-metal | |
43 | * however, so might as well do that here | |
44 | */ | |
2d335818 DG |
45 | return (drck->typeshift << DRC_INDEX_TYPE_SHIFT) |
46 | | (drc->id & DRC_INDEX_ID_MASK); | |
bbf5c878 MR |
47 | } |
48 | ||
0dfabd39 | 49 | static uint32_t drc_isolate_physical(sPAPRDRConnector *drc) |
bbf5c878 | 50 | { |
b8fdd530 DG |
51 | /* if the guest is configuring a device attached to this DRC, we |
52 | * should reset the configuration state at this point since it may | |
53 | * no longer be reliable (guest released device and needs to start | |
54 | * over, or unplug occurred so the FDT is no longer valid) | |
55 | */ | |
0dfabd39 DG |
56 | g_free(drc->ccs); |
57 | drc->ccs = NULL; | |
b8fdd530 | 58 | |
0dfabd39 DG |
59 | drc->isolation_state = SPAPR_DR_ISOLATION_STATE_ISOLATED; |
60 | ||
61 | /* if we're awaiting release, but still in an unconfigured state, | |
62 | * it's likely the guest is still in the process of configuring | |
63 | * the device and is transitioning the devices to an ISOLATED | |
64 | * state as a part of that process. so we only complete the | |
65 | * removal when this transition happens for a device in a | |
66 | * configured state, as suggested by the state diagram from PAPR+ | |
67 | * 2.7, 13.4 | |
68 | */ | |
69 | if (drc->awaiting_release) { | |
70 | uint32_t drc_index = spapr_drc_index(drc); | |
71 | if (drc->configured) { | |
72 | trace_spapr_drc_set_isolation_state_finalizing(drc_index); | |
73 | spapr_drc_detach(drc, DEVICE(drc->dev), NULL); | |
74 | } else { | |
75 | trace_spapr_drc_set_isolation_state_deferring(drc_index); | |
9d1852ce MR |
76 | } |
77 | } | |
0dfabd39 DG |
78 | drc->configured = false; |
79 | ||
80 | return RTAS_OUT_SUCCESS; | |
81 | } | |
82 | ||
83 | static uint32_t drc_unisolate_physical(sPAPRDRConnector *drc) | |
84 | { | |
85 | /* cannot unisolate a non-existent resource, and, or resources | |
86 | * which are in an 'UNUSABLE' allocation state. (PAPR 2.7, | |
87 | * 13.5.3.5) | |
88 | */ | |
89 | if (!drc->dev) { | |
90 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
91 | } | |
92 | ||
93 | drc->isolation_state = SPAPR_DR_ISOLATION_STATE_UNISOLATED; | |
94 | ||
95 | return RTAS_OUT_SUCCESS; | |
96 | } | |
97 | ||
98 | static uint32_t drc_isolate_logical(sPAPRDRConnector *drc) | |
99 | { | |
100 | /* if the guest is configuring a device attached to this DRC, we | |
101 | * should reset the configuration state at this point since it may | |
102 | * no longer be reliable (guest released device and needs to start | |
103 | * over, or unplug occurred so the FDT is no longer valid) | |
104 | */ | |
105 | g_free(drc->ccs); | |
106 | drc->ccs = NULL; | |
9d1852ce | 107 | |
cf632463 BR |
108 | /* |
109 | * Fail any requests to ISOLATE the LMB DRC if this LMB doesn't | |
110 | * belong to a DIMM device that is marked for removal. | |
111 | * | |
112 | * Currently the guest userspace tool drmgr that drives the memory | |
113 | * hotplug/unplug will just try to remove a set of 'removable' LMBs | |
114 | * in response to a hot unplug request that is based on drc-count. | |
115 | * If the LMB being removed doesn't belong to a DIMM device that is | |
116 | * actually being unplugged, fail the isolation request here. | |
117 | */ | |
0dfabd39 DG |
118 | if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_LMB |
119 | && !drc->awaiting_release) { | |
120 | return RTAS_OUT_HW_ERROR; | |
cf632463 BR |
121 | } |
122 | ||
0dfabd39 | 123 | drc->isolation_state = SPAPR_DR_ISOLATION_STATE_ISOLATED; |
bbf5c878 | 124 | |
0dfabd39 DG |
125 | /* if we're awaiting release, but still in an unconfigured state, |
126 | * it's likely the guest is still in the process of configuring | |
127 | * the device and is transitioning the devices to an ISOLATED | |
128 | * state as a part of that process. so we only complete the | |
129 | * removal when this transition happens for a device in a | |
130 | * configured state, as suggested by the state diagram from PAPR+ | |
131 | * 2.7, 13.4 | |
132 | */ | |
133 | if (drc->awaiting_release) { | |
134 | uint32_t drc_index = spapr_drc_index(drc); | |
135 | if (drc->configured) { | |
136 | trace_spapr_drc_set_isolation_state_finalizing(drc_index); | |
137 | spapr_drc_detach(drc, DEVICE(drc->dev), NULL); | |
138 | } else { | |
139 | trace_spapr_drc_set_isolation_state_deferring(drc_index); | |
bbf5c878 | 140 | } |
bbf5c878 | 141 | } |
0dfabd39 DG |
142 | drc->configured = false; |
143 | ||
144 | return RTAS_OUT_SUCCESS; | |
145 | } | |
146 | ||
147 | static uint32_t drc_unisolate_logical(sPAPRDRConnector *drc) | |
148 | { | |
149 | /* cannot unisolate a non-existent resource, and, or resources | |
150 | * which are in an 'UNUSABLE' allocation state. (PAPR 2.7, | |
151 | * 13.5.3.5) | |
152 | */ | |
153 | if (!drc->dev || | |
154 | drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_UNUSABLE) { | |
155 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
156 | } | |
157 | ||
158 | drc->isolation_state = SPAPR_DR_ISOLATION_STATE_UNISOLATED; | |
bbf5c878 | 159 | |
0cb688d2 | 160 | return RTAS_OUT_SUCCESS; |
bbf5c878 MR |
161 | } |
162 | ||
61736732 | 163 | static uint32_t drc_set_usable(sPAPRDRConnector *drc) |
bbf5c878 | 164 | { |
61736732 DG |
165 | /* if there's no resource/device associated with the DRC, there's |
166 | * no way for us to put it in an allocation state consistent with | |
167 | * being 'USABLE'. PAPR 2.7, 13.5.3.4 documents that this should | |
168 | * result in an RTAS return code of -3 / "no such indicator" | |
169 | */ | |
170 | if (!drc->dev) { | |
171 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
172 | } | |
82a93a1d DG |
173 | if (drc->awaiting_release) { |
174 | /* Don't allow the guest to move a device away from UNUSABLE | |
175 | * state when we want to unplug it */ | |
61736732 | 176 | return RTAS_OUT_NO_SUCH_INDICATOR; |
9d1852ce MR |
177 | } |
178 | ||
61736732 | 179 | drc->allocation_state = SPAPR_DR_ALLOCATION_STATE_USABLE; |
61736732 DG |
180 | |
181 | return RTAS_OUT_SUCCESS; | |
182 | } | |
183 | ||
184 | static uint32_t drc_set_unusable(sPAPRDRConnector *drc) | |
185 | { | |
186 | drc->allocation_state = SPAPR_DR_ALLOCATION_STATE_UNUSABLE; | |
187 | if (drc->awaiting_release) { | |
188 | uint32_t drc_index = spapr_drc_index(drc); | |
189 | trace_spapr_drc_set_allocation_state_finalizing(drc_index); | |
190 | spapr_drc_detach(drc, DEVICE(drc->dev), NULL); | |
bbf5c878 | 191 | } |
61736732 | 192 | |
0cb688d2 | 193 | return RTAS_OUT_SUCCESS; |
bbf5c878 MR |
194 | } |
195 | ||
79808336 | 196 | static const char *spapr_drc_name(sPAPRDRConnector *drc) |
bbf5c878 | 197 | { |
79808336 DG |
198 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
199 | ||
200 | /* human-readable name for a DRC to encode into the DT | |
201 | * description. this is mainly only used within a guest in place | |
202 | * of the unique DRC index. | |
203 | * | |
204 | * in the case of VIO/PCI devices, it corresponds to a "location | |
205 | * code" that maps a logical device/function (DRC index) to a | |
206 | * physical (or virtual in the case of VIO) location in the system | |
207 | * by chaining together the "location label" for each | |
208 | * encapsulating component. | |
209 | * | |
210 | * since this is more to do with diagnosing physical hardware | |
211 | * issues than guest compatibility, we choose location codes/DRC | |
212 | * names that adhere to the documented format, but avoid encoding | |
213 | * the entire topology information into the label/code, instead | |
214 | * just using the location codes based on the labels for the | |
215 | * endpoints (VIO/PCI adaptor connectors), which is basically just | |
216 | * "C" followed by an integer ID. | |
217 | * | |
218 | * DRC names as documented by PAPR+ v2.7, 13.5.2.4 | |
219 | * location codes as documented by PAPR+ v2.7, 12.3.1.5 | |
220 | */ | |
221 | return g_strdup_printf("%s%d", drck->drc_name_prefix, drc->id); | |
bbf5c878 MR |
222 | } |
223 | ||
bbf5c878 MR |
224 | /* |
225 | * dr-entity-sense sensor value | |
226 | * returned via get-sensor-state RTAS calls | |
227 | * as expected by state diagram in PAPR+ 2.7, 13.4 | |
228 | * based on the current allocation/indicator/power states | |
229 | * for the DR connector. | |
230 | */ | |
f224d35b | 231 | static sPAPRDREntitySense physical_entity_sense(sPAPRDRConnector *drc) |
bbf5c878 | 232 | { |
f224d35b DG |
233 | /* this assumes all PCI devices are assigned to a 'live insertion' |
234 | * power domain, where QEMU manages power state automatically as | |
235 | * opposed to the guest. present, non-PCI resources are unaffected | |
236 | * by power state. | |
237 | */ | |
238 | return drc->dev ? SPAPR_DR_ENTITY_SENSE_PRESENT | |
239 | : SPAPR_DR_ENTITY_SENSE_EMPTY; | |
240 | } | |
241 | ||
242 | static sPAPRDREntitySense logical_entity_sense(sPAPRDRConnector *drc) | |
243 | { | |
244 | if (drc->dev | |
245 | && (drc->allocation_state != SPAPR_DR_ALLOCATION_STATE_UNUSABLE)) { | |
246 | return SPAPR_DR_ENTITY_SENSE_PRESENT; | |
bbf5c878 | 247 | } else { |
f224d35b | 248 | return SPAPR_DR_ENTITY_SENSE_UNUSABLE; |
bbf5c878 | 249 | } |
bbf5c878 MR |
250 | } |
251 | ||
d7bce999 EB |
252 | static void prop_get_index(Object *obj, Visitor *v, const char *name, |
253 | void *opaque, Error **errp) | |
bbf5c878 MR |
254 | { |
255 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
0b55aa91 | 256 | uint32_t value = spapr_drc_index(drc); |
51e72bc1 | 257 | visit_type_uint32(v, name, &value, errp); |
bbf5c878 MR |
258 | } |
259 | ||
d7bce999 EB |
260 | static void prop_get_fdt(Object *obj, Visitor *v, const char *name, |
261 | void *opaque, Error **errp) | |
bbf5c878 MR |
262 | { |
263 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
c75304a1 | 264 | Error *err = NULL; |
bbf5c878 MR |
265 | int fdt_offset_next, fdt_offset, fdt_depth; |
266 | void *fdt; | |
267 | ||
268 | if (!drc->fdt) { | |
a543a554 | 269 | visit_type_null(v, NULL, errp); |
bbf5c878 MR |
270 | return; |
271 | } | |
272 | ||
273 | fdt = drc->fdt; | |
274 | fdt_offset = drc->fdt_start_offset; | |
275 | fdt_depth = 0; | |
276 | ||
277 | do { | |
278 | const char *name = NULL; | |
279 | const struct fdt_property *prop = NULL; | |
280 | int prop_len = 0, name_len = 0; | |
281 | uint32_t tag; | |
282 | ||
283 | tag = fdt_next_tag(fdt, fdt_offset, &fdt_offset_next); | |
284 | switch (tag) { | |
285 | case FDT_BEGIN_NODE: | |
286 | fdt_depth++; | |
287 | name = fdt_get_name(fdt, fdt_offset, &name_len); | |
337283df | 288 | visit_start_struct(v, name, NULL, 0, &err); |
c75304a1 MA |
289 | if (err) { |
290 | error_propagate(errp, err); | |
291 | return; | |
292 | } | |
bbf5c878 MR |
293 | break; |
294 | case FDT_END_NODE: | |
295 | /* shouldn't ever see an FDT_END_NODE before FDT_BEGIN_NODE */ | |
296 | g_assert(fdt_depth > 0); | |
15c2f669 | 297 | visit_check_struct(v, &err); |
1158bb2a | 298 | visit_end_struct(v, NULL); |
c75304a1 MA |
299 | if (err) { |
300 | error_propagate(errp, err); | |
301 | return; | |
302 | } | |
bbf5c878 MR |
303 | fdt_depth--; |
304 | break; | |
305 | case FDT_PROP: { | |
306 | int i; | |
307 | prop = fdt_get_property_by_offset(fdt, fdt_offset, &prop_len); | |
308 | name = fdt_string(fdt, fdt32_to_cpu(prop->nameoff)); | |
d9f62dde | 309 | visit_start_list(v, name, NULL, 0, &err); |
c75304a1 MA |
310 | if (err) { |
311 | error_propagate(errp, err); | |
312 | return; | |
313 | } | |
bbf5c878 | 314 | for (i = 0; i < prop_len; i++) { |
51e72bc1 | 315 | visit_type_uint8(v, NULL, (uint8_t *)&prop->data[i], &err); |
c75304a1 MA |
316 | if (err) { |
317 | error_propagate(errp, err); | |
318 | return; | |
319 | } | |
320 | } | |
a4a1c70d | 321 | visit_check_list(v, &err); |
1158bb2a | 322 | visit_end_list(v, NULL); |
a4a1c70d MA |
323 | if (err) { |
324 | error_propagate(errp, err); | |
325 | return; | |
326 | } | |
bbf5c878 MR |
327 | break; |
328 | } | |
329 | default: | |
330 | error_setg(&error_abort, "device FDT in unexpected state: %d", tag); | |
331 | } | |
332 | fdt_offset = fdt_offset_next; | |
333 | } while (fdt_depth != 0); | |
334 | } | |
335 | ||
0be4e886 | 336 | void spapr_drc_attach(sPAPRDRConnector *drc, DeviceState *d, void *fdt, |
5c1da812 | 337 | int fdt_start_offset, Error **errp) |
bbf5c878 | 338 | { |
0b55aa91 | 339 | trace_spapr_drc_attach(spapr_drc_index(drc)); |
bbf5c878 MR |
340 | |
341 | if (drc->isolation_state != SPAPR_DR_ISOLATION_STATE_ISOLATED) { | |
342 | error_setg(errp, "an attached device is still awaiting release"); | |
343 | return; | |
344 | } | |
2d335818 | 345 | if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_PCI) { |
bbf5c878 MR |
346 | g_assert(drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_USABLE); |
347 | } | |
5c1da812 | 348 | g_assert(fdt); |
bbf5c878 | 349 | |
bbf5c878 MR |
350 | drc->dev = d; |
351 | drc->fdt = fdt; | |
352 | drc->fdt_start_offset = fdt_start_offset; | |
bbf5c878 MR |
353 | |
354 | object_property_add_link(OBJECT(drc), "device", | |
355 | object_get_typename(OBJECT(drc->dev)), | |
356 | (Object **)(&drc->dev), | |
357 | NULL, 0, NULL); | |
358 | } | |
359 | ||
9c914e53 | 360 | static void spapr_drc_release(sPAPRDRConnector *drc) |
bbf5c878 | 361 | { |
6b762f29 DG |
362 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
363 | ||
364 | drck->release(drc->dev); | |
bbf5c878 MR |
365 | |
366 | drc->awaiting_release = false; | |
367 | g_free(drc->fdt); | |
368 | drc->fdt = NULL; | |
369 | drc->fdt_start_offset = 0; | |
ba50822f | 370 | object_property_del(OBJECT(drc), "device", &error_abort); |
bbf5c878 | 371 | drc->dev = NULL; |
bbf5c878 MR |
372 | } |
373 | ||
9c914e53 DG |
374 | void spapr_drc_detach(sPAPRDRConnector *drc, DeviceState *d, Error **errp) |
375 | { | |
376 | trace_spapr_drc_detach(spapr_drc_index(drc)); | |
377 | ||
378 | if (drc->isolation_state != SPAPR_DR_ISOLATION_STATE_ISOLATED) { | |
379 | trace_spapr_drc_awaiting_isolated(spapr_drc_index(drc)); | |
380 | drc->awaiting_release = true; | |
381 | return; | |
382 | } | |
383 | ||
384 | if (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI && | |
385 | drc->allocation_state != SPAPR_DR_ALLOCATION_STATE_UNUSABLE) { | |
386 | trace_spapr_drc_awaiting_unusable(spapr_drc_index(drc)); | |
387 | drc->awaiting_release = true; | |
388 | return; | |
389 | } | |
390 | ||
9c914e53 DG |
391 | spapr_drc_release(drc); |
392 | } | |
393 | ||
bbf5c878 MR |
394 | static bool release_pending(sPAPRDRConnector *drc) |
395 | { | |
396 | return drc->awaiting_release; | |
397 | } | |
398 | ||
94fd9cba | 399 | void spapr_drc_reset(sPAPRDRConnector *drc) |
bbf5c878 | 400 | { |
0b55aa91 | 401 | trace_spapr_drc_reset(spapr_drc_index(drc)); |
b8fdd530 DG |
402 | |
403 | g_free(drc->ccs); | |
404 | drc->ccs = NULL; | |
405 | ||
bbf5c878 | 406 | /* immediately upon reset we can safely assume DRCs whose devices |
4f9242fc | 407 | * are pending removal can be safely removed. |
bbf5c878 MR |
408 | */ |
409 | if (drc->awaiting_release) { | |
4f9242fc DG |
410 | spapr_drc_release(drc); |
411 | } | |
412 | ||
4f9242fc DG |
413 | if (drc->dev) { |
414 | /* A device present at reset is coldplugged */ | |
415 | drc->isolation_state = SPAPR_DR_ISOLATION_STATE_UNISOLATED; | |
416 | if (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI) { | |
417 | drc->allocation_state = SPAPR_DR_ALLOCATION_STATE_USABLE; | |
418 | } | |
f8dc2983 | 419 | drc->dr_indicator = SPAPR_DR_INDICATOR_ACTIVE; |
4f9242fc DG |
420 | } else { |
421 | /* Otherwise device is absent, but might be hotplugged */ | |
422 | drc->isolation_state = SPAPR_DR_ISOLATION_STATE_ISOLATED; | |
423 | if (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI) { | |
424 | drc->allocation_state = SPAPR_DR_ALLOCATION_STATE_UNUSABLE; | |
bbf5c878 | 425 | } |
f8dc2983 | 426 | drc->dr_indicator = SPAPR_DR_INDICATOR_INACTIVE; |
bbf5c878 MR |
427 | } |
428 | } | |
429 | ||
94fd9cba LV |
430 | static void drc_reset(void *opaque) |
431 | { | |
432 | spapr_drc_reset(SPAPR_DR_CONNECTOR(opaque)); | |
433 | } | |
434 | ||
a50919dd DHB |
435 | static bool spapr_drc_needed(void *opaque) |
436 | { | |
437 | sPAPRDRConnector *drc = (sPAPRDRConnector *)opaque; | |
438 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
439 | bool rc = false; | |
f224d35b | 440 | sPAPRDREntitySense value = drck->dr_entity_sense(drc); |
a50919dd DHB |
441 | |
442 | /* If no dev is plugged in there is no need to migrate the DRC state */ | |
443 | if (value != SPAPR_DR_ENTITY_SENSE_PRESENT) { | |
444 | return false; | |
445 | } | |
446 | ||
447 | /* | |
448 | * If there is dev plugged in, we need to migrate the DRC state when | |
449 | * it is different from cold-plugged state | |
450 | */ | |
2d335818 | 451 | switch (spapr_drc_type(drc)) { |
a50919dd | 452 | case SPAPR_DR_CONNECTOR_TYPE_PCI: |
a50919dd DHB |
453 | case SPAPR_DR_CONNECTOR_TYPE_CPU: |
454 | case SPAPR_DR_CONNECTOR_TYPE_LMB: | |
a32e900b GK |
455 | rc = !((drc->isolation_state == SPAPR_DR_ISOLATION_STATE_UNISOLATED) && |
456 | (drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_USABLE) && | |
307b7715 | 457 | drc->configured && !drc->awaiting_release); |
a50919dd DHB |
458 | break; |
459 | case SPAPR_DR_CONNECTOR_TYPE_PHB: | |
460 | case SPAPR_DR_CONNECTOR_TYPE_VIO: | |
461 | default: | |
a32e900b | 462 | g_assert_not_reached(); |
a50919dd DHB |
463 | } |
464 | return rc; | |
465 | } | |
466 | ||
467 | static const VMStateDescription vmstate_spapr_drc = { | |
468 | .name = "spapr_drc", | |
469 | .version_id = 1, | |
470 | .minimum_version_id = 1, | |
471 | .needed = spapr_drc_needed, | |
472 | .fields = (VMStateField []) { | |
473 | VMSTATE_UINT32(isolation_state, sPAPRDRConnector), | |
474 | VMSTATE_UINT32(allocation_state, sPAPRDRConnector), | |
cd74d27e | 475 | VMSTATE_UINT32(dr_indicator, sPAPRDRConnector), |
a50919dd DHB |
476 | VMSTATE_BOOL(configured, sPAPRDRConnector), |
477 | VMSTATE_BOOL(awaiting_release, sPAPRDRConnector), | |
a50919dd DHB |
478 | VMSTATE_END_OF_LIST() |
479 | } | |
480 | }; | |
481 | ||
bbf5c878 MR |
482 | static void realize(DeviceState *d, Error **errp) |
483 | { | |
484 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d); | |
bbf5c878 MR |
485 | Object *root_container; |
486 | char link_name[256]; | |
487 | gchar *child_name; | |
488 | Error *err = NULL; | |
489 | ||
0b55aa91 | 490 | trace_spapr_drc_realize(spapr_drc_index(drc)); |
bbf5c878 MR |
491 | /* NOTE: we do this as part of realize/unrealize due to the fact |
492 | * that the guest will communicate with the DRC via RTAS calls | |
493 | * referencing the global DRC index. By unlinking the DRC | |
494 | * from DRC_CONTAINER_PATH/<drc_index> we effectively make it | |
495 | * inaccessible by the guest, since lookups rely on this path | |
496 | * existing in the composition tree | |
497 | */ | |
498 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); | |
0b55aa91 | 499 | snprintf(link_name, sizeof(link_name), "%x", spapr_drc_index(drc)); |
bbf5c878 | 500 | child_name = object_get_canonical_path_component(OBJECT(drc)); |
0b55aa91 | 501 | trace_spapr_drc_realize_child(spapr_drc_index(drc), child_name); |
bbf5c878 MR |
502 | object_property_add_alias(root_container, link_name, |
503 | drc->owner, child_name, &err); | |
504 | if (err) { | |
4fffeb5e | 505 | error_report_err(err); |
bbf5c878 MR |
506 | object_unref(OBJECT(drc)); |
507 | } | |
586d2142 | 508 | g_free(child_name); |
0b55aa91 | 509 | vmstate_register(DEVICE(drc), spapr_drc_index(drc), &vmstate_spapr_drc, |
a50919dd | 510 | drc); |
6caf3ac6 | 511 | qemu_register_reset(drc_reset, drc); |
0b55aa91 | 512 | trace_spapr_drc_realize_complete(spapr_drc_index(drc)); |
bbf5c878 MR |
513 | } |
514 | ||
515 | static void unrealize(DeviceState *d, Error **errp) | |
516 | { | |
517 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d); | |
bbf5c878 MR |
518 | Object *root_container; |
519 | char name[256]; | |
520 | Error *err = NULL; | |
521 | ||
0b55aa91 | 522 | trace_spapr_drc_unrealize(spapr_drc_index(drc)); |
bbf5c878 | 523 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); |
0b55aa91 | 524 | snprintf(name, sizeof(name), "%x", spapr_drc_index(drc)); |
bbf5c878 MR |
525 | object_property_del(root_container, name, &err); |
526 | if (err) { | |
4fffeb5e | 527 | error_report_err(err); |
bbf5c878 MR |
528 | object_unref(OBJECT(drc)); |
529 | } | |
530 | } | |
531 | ||
2d335818 | 532 | sPAPRDRConnector *spapr_dr_connector_new(Object *owner, const char *type, |
bbf5c878 MR |
533 | uint32_t id) |
534 | { | |
2d335818 | 535 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(object_new(type)); |
94649d42 | 536 | char *prop_name; |
bbf5c878 | 537 | |
bbf5c878 MR |
538 | drc->id = id; |
539 | drc->owner = owner; | |
0b55aa91 DG |
540 | prop_name = g_strdup_printf("dr-connector[%"PRIu32"]", |
541 | spapr_drc_index(drc)); | |
94649d42 | 542 | object_property_add_child(owner, prop_name, OBJECT(drc), NULL); |
bbf5c878 | 543 | object_property_set_bool(OBJECT(drc), true, "realized", NULL); |
94649d42 | 544 | g_free(prop_name); |
bbf5c878 | 545 | |
bbf5c878 | 546 | /* PCI slot always start in a USABLE state, and stay there */ |
2d335818 | 547 | if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_PCI) { |
bbf5c878 MR |
548 | drc->allocation_state = SPAPR_DR_ALLOCATION_STATE_USABLE; |
549 | } | |
550 | ||
551 | return drc; | |
552 | } | |
553 | ||
554 | static void spapr_dr_connector_instance_init(Object *obj) | |
555 | { | |
556 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
557 | ||
bbf5c878 MR |
558 | object_property_add_uint32_ptr(obj, "id", &drc->id, NULL); |
559 | object_property_add(obj, "index", "uint32", prop_get_index, | |
560 | NULL, NULL, NULL, NULL); | |
bbf5c878 MR |
561 | object_property_add(obj, "fdt", "struct", prop_get_fdt, |
562 | NULL, NULL, NULL, NULL); | |
563 | } | |
564 | ||
565 | static void spapr_dr_connector_class_init(ObjectClass *k, void *data) | |
566 | { | |
567 | DeviceClass *dk = DEVICE_CLASS(k); | |
568 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
569 | ||
bbf5c878 MR |
570 | dk->realize = realize; |
571 | dk->unrealize = unrealize; | |
bbf5c878 | 572 | drck->release_pending = release_pending; |
c401ae8c MA |
573 | /* |
574 | * Reason: it crashes FIXME find and document the real reason | |
575 | */ | |
e90f2a8c | 576 | dk->user_creatable = false; |
bbf5c878 MR |
577 | } |
578 | ||
f224d35b DG |
579 | static void spapr_drc_physical_class_init(ObjectClass *k, void *data) |
580 | { | |
581 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
582 | ||
583 | drck->dr_entity_sense = physical_entity_sense; | |
0dfabd39 DG |
584 | drck->isolate = drc_isolate_physical; |
585 | drck->unisolate = drc_unisolate_physical; | |
f224d35b DG |
586 | } |
587 | ||
588 | static void spapr_drc_logical_class_init(ObjectClass *k, void *data) | |
589 | { | |
590 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
591 | ||
592 | drck->dr_entity_sense = logical_entity_sense; | |
0dfabd39 DG |
593 | drck->isolate = drc_isolate_logical; |
594 | drck->unisolate = drc_unisolate_logical; | |
f224d35b DG |
595 | } |
596 | ||
2d335818 DG |
597 | static void spapr_drc_cpu_class_init(ObjectClass *k, void *data) |
598 | { | |
599 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
600 | ||
601 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_CPU; | |
1693ea16 | 602 | drck->typename = "CPU"; |
79808336 | 603 | drck->drc_name_prefix = "CPU "; |
6b762f29 | 604 | drck->release = spapr_core_release; |
2d335818 DG |
605 | } |
606 | ||
607 | static void spapr_drc_pci_class_init(ObjectClass *k, void *data) | |
608 | { | |
609 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
610 | ||
611 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_PCI; | |
1693ea16 | 612 | drck->typename = "28"; |
79808336 | 613 | drck->drc_name_prefix = "C"; |
6b762f29 | 614 | drck->release = spapr_phb_remove_pci_device_cb; |
2d335818 DG |
615 | } |
616 | ||
617 | static void spapr_drc_lmb_class_init(ObjectClass *k, void *data) | |
618 | { | |
619 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
620 | ||
621 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_LMB; | |
1693ea16 | 622 | drck->typename = "MEM"; |
79808336 | 623 | drck->drc_name_prefix = "LMB "; |
6b762f29 | 624 | drck->release = spapr_lmb_release; |
2d335818 DG |
625 | } |
626 | ||
bbf5c878 MR |
627 | static const TypeInfo spapr_dr_connector_info = { |
628 | .name = TYPE_SPAPR_DR_CONNECTOR, | |
629 | .parent = TYPE_DEVICE, | |
630 | .instance_size = sizeof(sPAPRDRConnector), | |
631 | .instance_init = spapr_dr_connector_instance_init, | |
632 | .class_size = sizeof(sPAPRDRConnectorClass), | |
633 | .class_init = spapr_dr_connector_class_init, | |
2d335818 DG |
634 | .abstract = true, |
635 | }; | |
636 | ||
637 | static const TypeInfo spapr_drc_physical_info = { | |
638 | .name = TYPE_SPAPR_DRC_PHYSICAL, | |
639 | .parent = TYPE_SPAPR_DR_CONNECTOR, | |
f224d35b | 640 | .class_init = spapr_drc_physical_class_init, |
2d335818 DG |
641 | .abstract = true, |
642 | }; | |
643 | ||
644 | static const TypeInfo spapr_drc_logical_info = { | |
645 | .name = TYPE_SPAPR_DRC_LOGICAL, | |
646 | .parent = TYPE_SPAPR_DR_CONNECTOR, | |
f224d35b | 647 | .class_init = spapr_drc_logical_class_init, |
2d335818 DG |
648 | .abstract = true, |
649 | }; | |
650 | ||
651 | static const TypeInfo spapr_drc_cpu_info = { | |
652 | .name = TYPE_SPAPR_DRC_CPU, | |
653 | .parent = TYPE_SPAPR_DRC_LOGICAL, | |
2d335818 DG |
654 | .class_init = spapr_drc_cpu_class_init, |
655 | }; | |
656 | ||
657 | static const TypeInfo spapr_drc_pci_info = { | |
658 | .name = TYPE_SPAPR_DRC_PCI, | |
659 | .parent = TYPE_SPAPR_DRC_PHYSICAL, | |
2d335818 DG |
660 | .class_init = spapr_drc_pci_class_init, |
661 | }; | |
662 | ||
663 | static const TypeInfo spapr_drc_lmb_info = { | |
664 | .name = TYPE_SPAPR_DRC_LMB, | |
665 | .parent = TYPE_SPAPR_DRC_LOGICAL, | |
2d335818 | 666 | .class_init = spapr_drc_lmb_class_init, |
bbf5c878 MR |
667 | }; |
668 | ||
bbf5c878 MR |
669 | /* helper functions for external users */ |
670 | ||
fbf55397 | 671 | sPAPRDRConnector *spapr_drc_by_index(uint32_t index) |
bbf5c878 MR |
672 | { |
673 | Object *obj; | |
674 | char name[256]; | |
675 | ||
676 | snprintf(name, sizeof(name), "%s/%x", DRC_CONTAINER_PATH, index); | |
677 | obj = object_resolve_path(name, NULL); | |
678 | ||
679 | return !obj ? NULL : SPAPR_DR_CONNECTOR(obj); | |
680 | } | |
681 | ||
fbf55397 | 682 | sPAPRDRConnector *spapr_drc_by_id(const char *type, uint32_t id) |
bbf5c878 | 683 | { |
fbf55397 DG |
684 | sPAPRDRConnectorClass *drck |
685 | = SPAPR_DR_CONNECTOR_CLASS(object_class_by_name(type)); | |
686 | ||
687 | return spapr_drc_by_index(drck->typeshift << DRC_INDEX_TYPE_SHIFT | |
688 | | (id & DRC_INDEX_ID_MASK)); | |
bbf5c878 | 689 | } |
e4b798bb | 690 | |
e4b798bb MR |
691 | /** |
692 | * spapr_drc_populate_dt | |
693 | * | |
694 | * @fdt: libfdt device tree | |
695 | * @path: path in the DT to generate properties | |
696 | * @owner: parent Object/DeviceState for which to generate DRC | |
697 | * descriptions for | |
698 | * @drc_type_mask: mask of sPAPRDRConnectorType values corresponding | |
699 | * to the types of DRCs to generate entries for | |
700 | * | |
701 | * generate OF properties to describe DRC topology/indices to guests | |
702 | * | |
703 | * as documented in PAPR+ v2.1, 13.5.2 | |
704 | */ | |
705 | int spapr_drc_populate_dt(void *fdt, int fdt_offset, Object *owner, | |
706 | uint32_t drc_type_mask) | |
707 | { | |
708 | Object *root_container; | |
709 | ObjectProperty *prop; | |
7746abd8 | 710 | ObjectPropertyIterator iter; |
e4b798bb MR |
711 | uint32_t drc_count = 0; |
712 | GArray *drc_indexes, *drc_power_domains; | |
713 | GString *drc_names, *drc_types; | |
714 | int ret; | |
715 | ||
716 | /* the first entry of each properties is a 32-bit integer encoding | |
717 | * the number of elements in the array. we won't know this until | |
718 | * we complete the iteration through all the matching DRCs, but | |
719 | * reserve the space now and set the offsets accordingly so we | |
720 | * can fill them in later. | |
721 | */ | |
722 | drc_indexes = g_array_new(false, true, sizeof(uint32_t)); | |
723 | drc_indexes = g_array_set_size(drc_indexes, 1); | |
724 | drc_power_domains = g_array_new(false, true, sizeof(uint32_t)); | |
725 | drc_power_domains = g_array_set_size(drc_power_domains, 1); | |
726 | drc_names = g_string_set_size(g_string_new(NULL), sizeof(uint32_t)); | |
727 | drc_types = g_string_set_size(g_string_new(NULL), sizeof(uint32_t)); | |
728 | ||
729 | /* aliases for all DRConnector objects will be rooted in QOM | |
730 | * composition tree at DRC_CONTAINER_PATH | |
731 | */ | |
732 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); | |
733 | ||
7746abd8 DB |
734 | object_property_iter_init(&iter, root_container); |
735 | while ((prop = object_property_iter_next(&iter))) { | |
e4b798bb MR |
736 | Object *obj; |
737 | sPAPRDRConnector *drc; | |
738 | sPAPRDRConnectorClass *drck; | |
739 | uint32_t drc_index, drc_power_domain; | |
740 | ||
741 | if (!strstart(prop->type, "link<", NULL)) { | |
742 | continue; | |
743 | } | |
744 | ||
745 | obj = object_property_get_link(root_container, prop->name, NULL); | |
746 | drc = SPAPR_DR_CONNECTOR(obj); | |
747 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
748 | ||
749 | if (owner && (drc->owner != owner)) { | |
750 | continue; | |
751 | } | |
752 | ||
2d335818 | 753 | if ((spapr_drc_type(drc) & drc_type_mask) == 0) { |
e4b798bb MR |
754 | continue; |
755 | } | |
756 | ||
757 | drc_count++; | |
758 | ||
759 | /* ibm,drc-indexes */ | |
0b55aa91 | 760 | drc_index = cpu_to_be32(spapr_drc_index(drc)); |
e4b798bb MR |
761 | g_array_append_val(drc_indexes, drc_index); |
762 | ||
763 | /* ibm,drc-power-domains */ | |
764 | drc_power_domain = cpu_to_be32(-1); | |
765 | g_array_append_val(drc_power_domains, drc_power_domain); | |
766 | ||
767 | /* ibm,drc-names */ | |
79808336 | 768 | drc_names = g_string_append(drc_names, spapr_drc_name(drc)); |
e4b798bb MR |
769 | drc_names = g_string_insert_len(drc_names, -1, "\0", 1); |
770 | ||
771 | /* ibm,drc-types */ | |
1693ea16 | 772 | drc_types = g_string_append(drc_types, drck->typename); |
e4b798bb MR |
773 | drc_types = g_string_insert_len(drc_types, -1, "\0", 1); |
774 | } | |
775 | ||
776 | /* now write the drc count into the space we reserved at the | |
777 | * beginning of the arrays previously | |
778 | */ | |
779 | *(uint32_t *)drc_indexes->data = cpu_to_be32(drc_count); | |
780 | *(uint32_t *)drc_power_domains->data = cpu_to_be32(drc_count); | |
781 | *(uint32_t *)drc_names->str = cpu_to_be32(drc_count); | |
782 | *(uint32_t *)drc_types->str = cpu_to_be32(drc_count); | |
783 | ||
784 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-indexes", | |
785 | drc_indexes->data, | |
786 | drc_indexes->len * sizeof(uint32_t)); | |
787 | if (ret) { | |
ce9863b7 | 788 | error_report("Couldn't create ibm,drc-indexes property"); |
e4b798bb MR |
789 | goto out; |
790 | } | |
791 | ||
792 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-power-domains", | |
793 | drc_power_domains->data, | |
794 | drc_power_domains->len * sizeof(uint32_t)); | |
795 | if (ret) { | |
ce9863b7 | 796 | error_report("Couldn't finalize ibm,drc-power-domains property"); |
e4b798bb MR |
797 | goto out; |
798 | } | |
799 | ||
800 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-names", | |
801 | drc_names->str, drc_names->len); | |
802 | if (ret) { | |
ce9863b7 | 803 | error_report("Couldn't finalize ibm,drc-names property"); |
e4b798bb MR |
804 | goto out; |
805 | } | |
806 | ||
807 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-types", | |
808 | drc_types->str, drc_types->len); | |
809 | if (ret) { | |
ce9863b7 | 810 | error_report("Couldn't finalize ibm,drc-types property"); |
e4b798bb MR |
811 | goto out; |
812 | } | |
813 | ||
814 | out: | |
815 | g_array_free(drc_indexes, true); | |
816 | g_array_free(drc_power_domains, true); | |
817 | g_string_free(drc_names, true); | |
818 | g_string_free(drc_types, true); | |
819 | ||
820 | return ret; | |
821 | } | |
b89b3d39 DG |
822 | |
823 | /* | |
824 | * RTAS calls | |
825 | */ | |
826 | ||
7b7258f8 | 827 | static uint32_t rtas_set_isolation_state(uint32_t idx, uint32_t state) |
b89b3d39 | 828 | { |
7b7258f8 DG |
829 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); |
830 | sPAPRDRConnectorClass *drck; | |
831 | ||
832 | if (!drc) { | |
0dfabd39 | 833 | return RTAS_OUT_NO_SUCH_INDICATOR; |
b89b3d39 DG |
834 | } |
835 | ||
0dfabd39 DG |
836 | trace_spapr_drc_set_isolation_state(spapr_drc_index(drc), state); |
837 | ||
7b7258f8 | 838 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
0dfabd39 DG |
839 | |
840 | switch (state) { | |
841 | case SPAPR_DR_ISOLATION_STATE_ISOLATED: | |
842 | return drck->isolate(drc); | |
843 | ||
844 | case SPAPR_DR_ISOLATION_STATE_UNISOLATED: | |
845 | return drck->unisolate(drc); | |
846 | ||
847 | default: | |
848 | return RTAS_OUT_PARAM_ERROR; | |
849 | } | |
b89b3d39 DG |
850 | } |
851 | ||
7b7258f8 | 852 | static uint32_t rtas_set_allocation_state(uint32_t idx, uint32_t state) |
b89b3d39 | 853 | { |
7b7258f8 | 854 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); |
b89b3d39 | 855 | |
61736732 DG |
856 | if (!drc || !object_dynamic_cast(OBJECT(drc), TYPE_SPAPR_DRC_LOGICAL)) { |
857 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
b89b3d39 DG |
858 | } |
859 | ||
61736732 DG |
860 | trace_spapr_drc_set_allocation_state(spapr_drc_index(drc), state); |
861 | ||
862 | switch (state) { | |
863 | case SPAPR_DR_ALLOCATION_STATE_USABLE: | |
864 | return drc_set_usable(drc); | |
865 | ||
866 | case SPAPR_DR_ALLOCATION_STATE_UNUSABLE: | |
867 | return drc_set_unusable(drc); | |
868 | ||
869 | default: | |
870 | return RTAS_OUT_PARAM_ERROR; | |
871 | } | |
7b7258f8 | 872 | } |
b89b3d39 | 873 | |
cd74d27e | 874 | static uint32_t rtas_set_dr_indicator(uint32_t idx, uint32_t state) |
7b7258f8 DG |
875 | { |
876 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); | |
b89b3d39 | 877 | |
b89b3d39 | 878 | if (!drc) { |
7b7258f8 DG |
879 | return RTAS_OUT_PARAM_ERROR; |
880 | } | |
881 | ||
cd74d27e DG |
882 | trace_spapr_drc_set_dr_indicator(idx, state); |
883 | drc->dr_indicator = state; | |
884 | return RTAS_OUT_SUCCESS; | |
7b7258f8 DG |
885 | } |
886 | ||
887 | static void rtas_set_indicator(PowerPCCPU *cpu, sPAPRMachineState *spapr, | |
888 | uint32_t token, | |
889 | uint32_t nargs, target_ulong args, | |
890 | uint32_t nret, target_ulong rets) | |
891 | { | |
892 | uint32_t type, idx, state; | |
893 | uint32_t ret = RTAS_OUT_SUCCESS; | |
894 | ||
895 | if (nargs != 3 || nret != 1) { | |
b89b3d39 DG |
896 | ret = RTAS_OUT_PARAM_ERROR; |
897 | goto out; | |
898 | } | |
b89b3d39 | 899 | |
7b7258f8 DG |
900 | type = rtas_ld(args, 0); |
901 | idx = rtas_ld(args, 1); | |
902 | state = rtas_ld(args, 2); | |
903 | ||
904 | switch (type) { | |
b89b3d39 | 905 | case RTAS_SENSOR_TYPE_ISOLATION_STATE: |
7b7258f8 | 906 | ret = rtas_set_isolation_state(idx, state); |
b89b3d39 DG |
907 | break; |
908 | case RTAS_SENSOR_TYPE_DR: | |
cd74d27e | 909 | ret = rtas_set_dr_indicator(idx, state); |
b89b3d39 DG |
910 | break; |
911 | case RTAS_SENSOR_TYPE_ALLOCATION_STATE: | |
7b7258f8 | 912 | ret = rtas_set_allocation_state(idx, state); |
b89b3d39 DG |
913 | break; |
914 | default: | |
7b7258f8 | 915 | ret = RTAS_OUT_NOT_SUPPORTED; |
b89b3d39 DG |
916 | } |
917 | ||
918 | out: | |
919 | rtas_st(rets, 0, ret); | |
b89b3d39 DG |
920 | } |
921 | ||
922 | static void rtas_get_sensor_state(PowerPCCPU *cpu, sPAPRMachineState *spapr, | |
923 | uint32_t token, uint32_t nargs, | |
924 | target_ulong args, uint32_t nret, | |
925 | target_ulong rets) | |
926 | { | |
927 | uint32_t sensor_type; | |
928 | uint32_t sensor_index; | |
929 | uint32_t sensor_state = 0; | |
930 | sPAPRDRConnector *drc; | |
931 | sPAPRDRConnectorClass *drck; | |
932 | uint32_t ret = RTAS_OUT_SUCCESS; | |
933 | ||
934 | if (nargs != 2 || nret != 2) { | |
935 | ret = RTAS_OUT_PARAM_ERROR; | |
936 | goto out; | |
937 | } | |
938 | ||
939 | sensor_type = rtas_ld(args, 0); | |
940 | sensor_index = rtas_ld(args, 1); | |
941 | ||
942 | if (sensor_type != RTAS_SENSOR_TYPE_ENTITY_SENSE) { | |
943 | /* currently only DR-related sensors are implemented */ | |
944 | trace_spapr_rtas_get_sensor_state_not_supported(sensor_index, | |
945 | sensor_type); | |
946 | ret = RTAS_OUT_NOT_SUPPORTED; | |
947 | goto out; | |
948 | } | |
949 | ||
fbf55397 | 950 | drc = spapr_drc_by_index(sensor_index); |
b89b3d39 DG |
951 | if (!drc) { |
952 | trace_spapr_rtas_get_sensor_state_invalid(sensor_index); | |
953 | ret = RTAS_OUT_PARAM_ERROR; | |
954 | goto out; | |
955 | } | |
956 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
f224d35b | 957 | sensor_state = drck->dr_entity_sense(drc); |
b89b3d39 DG |
958 | |
959 | out: | |
960 | rtas_st(rets, 0, ret); | |
961 | rtas_st(rets, 1, sensor_state); | |
962 | } | |
963 | ||
964 | /* configure-connector work area offsets, int32_t units for field | |
965 | * indexes, bytes for field offset/len values. | |
966 | * | |
967 | * as documented by PAPR+ v2.7, 13.5.3.5 | |
968 | */ | |
969 | #define CC_IDX_NODE_NAME_OFFSET 2 | |
970 | #define CC_IDX_PROP_NAME_OFFSET 2 | |
971 | #define CC_IDX_PROP_LEN 3 | |
972 | #define CC_IDX_PROP_DATA_OFFSET 4 | |
973 | #define CC_VAL_DATA_OFFSET ((CC_IDX_PROP_DATA_OFFSET + 1) * 4) | |
974 | #define CC_WA_LEN 4096 | |
975 | ||
976 | static void configure_connector_st(target_ulong addr, target_ulong offset, | |
977 | const void *buf, size_t len) | |
978 | { | |
979 | cpu_physical_memory_write(ppc64_phys_to_real(addr + offset), | |
980 | buf, MIN(len, CC_WA_LEN - offset)); | |
981 | } | |
982 | ||
b89b3d39 DG |
983 | static void rtas_ibm_configure_connector(PowerPCCPU *cpu, |
984 | sPAPRMachineState *spapr, | |
985 | uint32_t token, uint32_t nargs, | |
986 | target_ulong args, uint32_t nret, | |
987 | target_ulong rets) | |
988 | { | |
989 | uint64_t wa_addr; | |
990 | uint64_t wa_offset; | |
991 | uint32_t drc_index; | |
992 | sPAPRDRConnector *drc; | |
b89b3d39 DG |
993 | sPAPRConfigureConnectorState *ccs; |
994 | sPAPRDRCCResponse resp = SPAPR_DR_CC_RESPONSE_CONTINUE; | |
995 | int rc; | |
b89b3d39 DG |
996 | |
997 | if (nargs != 2 || nret != 1) { | |
998 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); | |
999 | return; | |
1000 | } | |
1001 | ||
1002 | wa_addr = ((uint64_t)rtas_ld(args, 1) << 32) | rtas_ld(args, 0); | |
1003 | ||
1004 | drc_index = rtas_ld(wa_addr, 0); | |
fbf55397 | 1005 | drc = spapr_drc_by_index(drc_index); |
b89b3d39 DG |
1006 | if (!drc) { |
1007 | trace_spapr_rtas_ibm_configure_connector_invalid(drc_index); | |
1008 | rc = RTAS_OUT_PARAM_ERROR; | |
1009 | goto out; | |
1010 | } | |
1011 | ||
88af6ea5 | 1012 | if (!drc->fdt) { |
b89b3d39 DG |
1013 | trace_spapr_rtas_ibm_configure_connector_missing_fdt(drc_index); |
1014 | rc = SPAPR_DR_CC_RESPONSE_NOT_CONFIGURABLE; | |
1015 | goto out; | |
1016 | } | |
1017 | ||
b8fdd530 | 1018 | ccs = drc->ccs; |
b89b3d39 DG |
1019 | if (!ccs) { |
1020 | ccs = g_new0(sPAPRConfigureConnectorState, 1); | |
88af6ea5 | 1021 | ccs->fdt_offset = drc->fdt_start_offset; |
b8fdd530 | 1022 | drc->ccs = ccs; |
b89b3d39 DG |
1023 | } |
1024 | ||
1025 | do { | |
1026 | uint32_t tag; | |
1027 | const char *name; | |
1028 | const struct fdt_property *prop; | |
1029 | int fdt_offset_next, prop_len; | |
1030 | ||
88af6ea5 | 1031 | tag = fdt_next_tag(drc->fdt, ccs->fdt_offset, &fdt_offset_next); |
b89b3d39 DG |
1032 | |
1033 | switch (tag) { | |
1034 | case FDT_BEGIN_NODE: | |
1035 | ccs->fdt_depth++; | |
88af6ea5 | 1036 | name = fdt_get_name(drc->fdt, ccs->fdt_offset, NULL); |
b89b3d39 DG |
1037 | |
1038 | /* provide the name of the next OF node */ | |
1039 | wa_offset = CC_VAL_DATA_OFFSET; | |
1040 | rtas_st(wa_addr, CC_IDX_NODE_NAME_OFFSET, wa_offset); | |
1041 | configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1); | |
1042 | resp = SPAPR_DR_CC_RESPONSE_NEXT_CHILD; | |
1043 | break; | |
1044 | case FDT_END_NODE: | |
1045 | ccs->fdt_depth--; | |
1046 | if (ccs->fdt_depth == 0) { | |
4f65ce00 | 1047 | sPAPRDRIsolationState state = drc->isolation_state; |
0b55aa91 | 1048 | uint32_t drc_index = spapr_drc_index(drc); |
b89b3d39 DG |
1049 | /* done sending the device tree, don't need to track |
1050 | * the state anymore | |
1051 | */ | |
0b55aa91 | 1052 | trace_spapr_drc_set_configured(drc_index); |
4f65ce00 DG |
1053 | if (state == SPAPR_DR_ISOLATION_STATE_UNISOLATED) { |
1054 | drc->configured = true; | |
1055 | } else { | |
1056 | /* guest should be not configuring an isolated device */ | |
0b55aa91 | 1057 | trace_spapr_drc_set_configured_skipping(drc_index); |
4f65ce00 | 1058 | } |
b8fdd530 DG |
1059 | g_free(ccs); |
1060 | drc->ccs = NULL; | |
b89b3d39 DG |
1061 | ccs = NULL; |
1062 | resp = SPAPR_DR_CC_RESPONSE_SUCCESS; | |
1063 | } else { | |
1064 | resp = SPAPR_DR_CC_RESPONSE_PREV_PARENT; | |
1065 | } | |
1066 | break; | |
1067 | case FDT_PROP: | |
88af6ea5 | 1068 | prop = fdt_get_property_by_offset(drc->fdt, ccs->fdt_offset, |
b89b3d39 | 1069 | &prop_len); |
88af6ea5 | 1070 | name = fdt_string(drc->fdt, fdt32_to_cpu(prop->nameoff)); |
b89b3d39 DG |
1071 | |
1072 | /* provide the name of the next OF property */ | |
1073 | wa_offset = CC_VAL_DATA_OFFSET; | |
1074 | rtas_st(wa_addr, CC_IDX_PROP_NAME_OFFSET, wa_offset); | |
1075 | configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1); | |
1076 | ||
1077 | /* provide the length and value of the OF property. data gets | |
1078 | * placed immediately after NULL terminator of the OF property's | |
1079 | * name string | |
1080 | */ | |
1081 | wa_offset += strlen(name) + 1, | |
1082 | rtas_st(wa_addr, CC_IDX_PROP_LEN, prop_len); | |
1083 | rtas_st(wa_addr, CC_IDX_PROP_DATA_OFFSET, wa_offset); | |
1084 | configure_connector_st(wa_addr, wa_offset, prop->data, prop_len); | |
1085 | resp = SPAPR_DR_CC_RESPONSE_NEXT_PROPERTY; | |
1086 | break; | |
1087 | case FDT_END: | |
1088 | resp = SPAPR_DR_CC_RESPONSE_ERROR; | |
1089 | default: | |
1090 | /* keep seeking for an actionable tag */ | |
1091 | break; | |
1092 | } | |
1093 | if (ccs) { | |
1094 | ccs->fdt_offset = fdt_offset_next; | |
1095 | } | |
1096 | } while (resp == SPAPR_DR_CC_RESPONSE_CONTINUE); | |
1097 | ||
1098 | rc = resp; | |
1099 | out: | |
1100 | rtas_st(rets, 0, rc); | |
1101 | } | |
1102 | ||
1103 | static void spapr_drc_register_types(void) | |
1104 | { | |
1105 | type_register_static(&spapr_dr_connector_info); | |
2d335818 DG |
1106 | type_register_static(&spapr_drc_physical_info); |
1107 | type_register_static(&spapr_drc_logical_info); | |
1108 | type_register_static(&spapr_drc_cpu_info); | |
1109 | type_register_static(&spapr_drc_pci_info); | |
1110 | type_register_static(&spapr_drc_lmb_info); | |
b89b3d39 DG |
1111 | |
1112 | spapr_rtas_register(RTAS_SET_INDICATOR, "set-indicator", | |
1113 | rtas_set_indicator); | |
1114 | spapr_rtas_register(RTAS_GET_SENSOR_STATE, "get-sensor-state", | |
1115 | rtas_get_sensor_state); | |
1116 | spapr_rtas_register(RTAS_IBM_CONFIGURE_CONNECTOR, "ibm,configure-connector", | |
1117 | rtas_ibm_configure_connector); | |
1118 | } | |
1119 | type_init(spapr_drc_register_types) |