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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54 | * over, or unplug occurred so the FDT is no longer valid) | |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 | } | |
173 | if (drc->awaiting_release && drc->awaiting_allocation) { | |
174 | /* kernel is acknowledging a previous hotplug event | |
175 | * while we are already removing it. | |
176 | * it's safe to ignore awaiting_allocation here since we know the | |
177 | * situation is predicated on the guest either already having done | |
178 | * so (boot-time hotplug), or never being able to acquire in the | |
179 | * first place (hotplug followed by immediate unplug). | |
9d1852ce | 180 | */ |
61736732 | 181 | return RTAS_OUT_NO_SUCH_INDICATOR; |
9d1852ce MR |
182 | } |
183 | ||
61736732 DG |
184 | drc->allocation_state = SPAPR_DR_ALLOCATION_STATE_USABLE; |
185 | drc->awaiting_allocation = false; | |
186 | ||
187 | return RTAS_OUT_SUCCESS; | |
188 | } | |
189 | ||
190 | static uint32_t drc_set_unusable(sPAPRDRConnector *drc) | |
191 | { | |
192 | drc->allocation_state = SPAPR_DR_ALLOCATION_STATE_UNUSABLE; | |
193 | if (drc->awaiting_release) { | |
194 | uint32_t drc_index = spapr_drc_index(drc); | |
195 | trace_spapr_drc_set_allocation_state_finalizing(drc_index); | |
196 | spapr_drc_detach(drc, DEVICE(drc->dev), NULL); | |
bbf5c878 | 197 | } |
61736732 | 198 | |
0cb688d2 | 199 | return RTAS_OUT_SUCCESS; |
bbf5c878 MR |
200 | } |
201 | ||
79808336 | 202 | static const char *spapr_drc_name(sPAPRDRConnector *drc) |
bbf5c878 | 203 | { |
79808336 DG |
204 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
205 | ||
206 | /* human-readable name for a DRC to encode into the DT | |
207 | * description. this is mainly only used within a guest in place | |
208 | * of the unique DRC index. | |
209 | * | |
210 | * in the case of VIO/PCI devices, it corresponds to a "location | |
211 | * code" that maps a logical device/function (DRC index) to a | |
212 | * physical (or virtual in the case of VIO) location in the system | |
213 | * by chaining together the "location label" for each | |
214 | * encapsulating component. | |
215 | * | |
216 | * since this is more to do with diagnosing physical hardware | |
217 | * issues than guest compatibility, we choose location codes/DRC | |
218 | * names that adhere to the documented format, but avoid encoding | |
219 | * the entire topology information into the label/code, instead | |
220 | * just using the location codes based on the labels for the | |
221 | * endpoints (VIO/PCI adaptor connectors), which is basically just | |
222 | * "C" followed by an integer ID. | |
223 | * | |
224 | * DRC names as documented by PAPR+ v2.7, 13.5.2.4 | |
225 | * location codes as documented by PAPR+ v2.7, 12.3.1.5 | |
226 | */ | |
227 | return g_strdup_printf("%s%d", drck->drc_name_prefix, drc->id); | |
bbf5c878 MR |
228 | } |
229 | ||
bbf5c878 MR |
230 | /* |
231 | * dr-entity-sense sensor value | |
232 | * returned via get-sensor-state RTAS calls | |
233 | * as expected by state diagram in PAPR+ 2.7, 13.4 | |
234 | * based on the current allocation/indicator/power states | |
235 | * for the DR connector. | |
236 | */ | |
f224d35b | 237 | static sPAPRDREntitySense physical_entity_sense(sPAPRDRConnector *drc) |
bbf5c878 | 238 | { |
f224d35b DG |
239 | /* this assumes all PCI devices are assigned to a 'live insertion' |
240 | * power domain, where QEMU manages power state automatically as | |
241 | * opposed to the guest. present, non-PCI resources are unaffected | |
242 | * by power state. | |
243 | */ | |
244 | return drc->dev ? SPAPR_DR_ENTITY_SENSE_PRESENT | |
245 | : SPAPR_DR_ENTITY_SENSE_EMPTY; | |
246 | } | |
247 | ||
248 | static sPAPRDREntitySense logical_entity_sense(sPAPRDRConnector *drc) | |
249 | { | |
250 | if (drc->dev | |
251 | && (drc->allocation_state != SPAPR_DR_ALLOCATION_STATE_UNUSABLE)) { | |
252 | return SPAPR_DR_ENTITY_SENSE_PRESENT; | |
bbf5c878 | 253 | } else { |
f224d35b | 254 | return SPAPR_DR_ENTITY_SENSE_UNUSABLE; |
bbf5c878 | 255 | } |
bbf5c878 MR |
256 | } |
257 | ||
d7bce999 EB |
258 | static void prop_get_index(Object *obj, Visitor *v, const char *name, |
259 | void *opaque, Error **errp) | |
bbf5c878 MR |
260 | { |
261 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
0b55aa91 | 262 | uint32_t value = spapr_drc_index(drc); |
51e72bc1 | 263 | visit_type_uint32(v, name, &value, errp); |
bbf5c878 MR |
264 | } |
265 | ||
d7bce999 EB |
266 | static void prop_get_fdt(Object *obj, Visitor *v, const char *name, |
267 | void *opaque, Error **errp) | |
bbf5c878 MR |
268 | { |
269 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
c75304a1 | 270 | Error *err = NULL; |
bbf5c878 MR |
271 | int fdt_offset_next, fdt_offset, fdt_depth; |
272 | void *fdt; | |
273 | ||
274 | if (!drc->fdt) { | |
a543a554 | 275 | visit_type_null(v, NULL, errp); |
bbf5c878 MR |
276 | return; |
277 | } | |
278 | ||
279 | fdt = drc->fdt; | |
280 | fdt_offset = drc->fdt_start_offset; | |
281 | fdt_depth = 0; | |
282 | ||
283 | do { | |
284 | const char *name = NULL; | |
285 | const struct fdt_property *prop = NULL; | |
286 | int prop_len = 0, name_len = 0; | |
287 | uint32_t tag; | |
288 | ||
289 | tag = fdt_next_tag(fdt, fdt_offset, &fdt_offset_next); | |
290 | switch (tag) { | |
291 | case FDT_BEGIN_NODE: | |
292 | fdt_depth++; | |
293 | name = fdt_get_name(fdt, fdt_offset, &name_len); | |
337283df | 294 | visit_start_struct(v, name, NULL, 0, &err); |
c75304a1 MA |
295 | if (err) { |
296 | error_propagate(errp, err); | |
297 | return; | |
298 | } | |
bbf5c878 MR |
299 | break; |
300 | case FDT_END_NODE: | |
301 | /* shouldn't ever see an FDT_END_NODE before FDT_BEGIN_NODE */ | |
302 | g_assert(fdt_depth > 0); | |
15c2f669 | 303 | visit_check_struct(v, &err); |
1158bb2a | 304 | visit_end_struct(v, NULL); |
c75304a1 MA |
305 | if (err) { |
306 | error_propagate(errp, err); | |
307 | return; | |
308 | } | |
bbf5c878 MR |
309 | fdt_depth--; |
310 | break; | |
311 | case FDT_PROP: { | |
312 | int i; | |
313 | prop = fdt_get_property_by_offset(fdt, fdt_offset, &prop_len); | |
314 | name = fdt_string(fdt, fdt32_to_cpu(prop->nameoff)); | |
d9f62dde | 315 | visit_start_list(v, name, NULL, 0, &err); |
c75304a1 MA |
316 | if (err) { |
317 | error_propagate(errp, err); | |
318 | return; | |
319 | } | |
bbf5c878 | 320 | for (i = 0; i < prop_len; i++) { |
51e72bc1 | 321 | visit_type_uint8(v, NULL, (uint8_t *)&prop->data[i], &err); |
c75304a1 MA |
322 | if (err) { |
323 | error_propagate(errp, err); | |
324 | return; | |
325 | } | |
326 | } | |
a4a1c70d | 327 | visit_check_list(v, &err); |
1158bb2a | 328 | visit_end_list(v, NULL); |
a4a1c70d MA |
329 | if (err) { |
330 | error_propagate(errp, err); | |
331 | return; | |
332 | } | |
bbf5c878 MR |
333 | break; |
334 | } | |
335 | default: | |
336 | error_setg(&error_abort, "device FDT in unexpected state: %d", tag); | |
337 | } | |
338 | fdt_offset = fdt_offset_next; | |
339 | } while (fdt_depth != 0); | |
340 | } | |
341 | ||
0be4e886 DG |
342 | void spapr_drc_attach(sPAPRDRConnector *drc, DeviceState *d, void *fdt, |
343 | int fdt_start_offset, bool coldplug, Error **errp) | |
bbf5c878 | 344 | { |
0b55aa91 | 345 | trace_spapr_drc_attach(spapr_drc_index(drc)); |
bbf5c878 MR |
346 | |
347 | if (drc->isolation_state != SPAPR_DR_ISOLATION_STATE_ISOLATED) { | |
348 | error_setg(errp, "an attached device is still awaiting release"); | |
349 | return; | |
350 | } | |
2d335818 | 351 | if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_PCI) { |
bbf5c878 MR |
352 | g_assert(drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_USABLE); |
353 | } | |
354 | g_assert(fdt || coldplug); | |
355 | ||
bbf5c878 MR |
356 | drc->dev = d; |
357 | drc->fdt = fdt; | |
358 | drc->fdt_start_offset = fdt_start_offset; | |
785652dc | 359 | drc->configured = coldplug; |
bbf5c878 | 360 | |
2d335818 | 361 | if (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI) { |
aab99135 BR |
362 | drc->awaiting_allocation = true; |
363 | } | |
364 | ||
bbf5c878 MR |
365 | object_property_add_link(OBJECT(drc), "device", |
366 | object_get_typename(OBJECT(drc->dev)), | |
367 | (Object **)(&drc->dev), | |
368 | NULL, 0, NULL); | |
369 | } | |
370 | ||
9c914e53 | 371 | static void spapr_drc_release(sPAPRDRConnector *drc) |
bbf5c878 | 372 | { |
6b762f29 DG |
373 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
374 | ||
375 | drck->release(drc->dev); | |
bbf5c878 MR |
376 | |
377 | drc->awaiting_release = false; | |
378 | g_free(drc->fdt); | |
379 | drc->fdt = NULL; | |
380 | drc->fdt_start_offset = 0; | |
381 | object_property_del(OBJECT(drc), "device", NULL); | |
382 | drc->dev = NULL; | |
bbf5c878 MR |
383 | } |
384 | ||
9c914e53 DG |
385 | void spapr_drc_detach(sPAPRDRConnector *drc, DeviceState *d, Error **errp) |
386 | { | |
387 | trace_spapr_drc_detach(spapr_drc_index(drc)); | |
388 | ||
389 | if (drc->isolation_state != SPAPR_DR_ISOLATION_STATE_ISOLATED) { | |
390 | trace_spapr_drc_awaiting_isolated(spapr_drc_index(drc)); | |
391 | drc->awaiting_release = true; | |
392 | return; | |
393 | } | |
394 | ||
395 | if (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI && | |
396 | drc->allocation_state != SPAPR_DR_ALLOCATION_STATE_UNUSABLE) { | |
397 | trace_spapr_drc_awaiting_unusable(spapr_drc_index(drc)); | |
398 | drc->awaiting_release = true; | |
399 | return; | |
400 | } | |
401 | ||
402 | if (drc->awaiting_allocation) { | |
403 | drc->awaiting_release = true; | |
404 | trace_spapr_drc_awaiting_allocation(spapr_drc_index(drc)); | |
405 | return; | |
406 | } | |
407 | ||
408 | spapr_drc_release(drc); | |
409 | } | |
410 | ||
bbf5c878 MR |
411 | static bool release_pending(sPAPRDRConnector *drc) |
412 | { | |
413 | return drc->awaiting_release; | |
414 | } | |
415 | ||
6caf3ac6 | 416 | static void drc_reset(void *opaque) |
bbf5c878 | 417 | { |
6caf3ac6 | 418 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(opaque); |
bbf5c878 | 419 | |
0b55aa91 | 420 | trace_spapr_drc_reset(spapr_drc_index(drc)); |
b8fdd530 DG |
421 | |
422 | g_free(drc->ccs); | |
423 | drc->ccs = NULL; | |
424 | ||
bbf5c878 | 425 | /* immediately upon reset we can safely assume DRCs whose devices |
4f9242fc | 426 | * are pending removal can be safely removed. |
bbf5c878 MR |
427 | */ |
428 | if (drc->awaiting_release) { | |
4f9242fc DG |
429 | spapr_drc_release(drc); |
430 | } | |
431 | ||
432 | drc->awaiting_allocation = false; | |
bbf5c878 | 433 | |
4f9242fc DG |
434 | if (drc->dev) { |
435 | /* A device present at reset is coldplugged */ | |
436 | drc->isolation_state = SPAPR_DR_ISOLATION_STATE_UNISOLATED; | |
437 | if (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI) { | |
438 | drc->allocation_state = SPAPR_DR_ALLOCATION_STATE_USABLE; | |
439 | } | |
f8dc2983 | 440 | drc->dr_indicator = SPAPR_DR_INDICATOR_ACTIVE; |
4f9242fc DG |
441 | } else { |
442 | /* Otherwise device is absent, but might be hotplugged */ | |
443 | drc->isolation_state = SPAPR_DR_ISOLATION_STATE_ISOLATED; | |
444 | if (spapr_drc_type(drc) != SPAPR_DR_CONNECTOR_TYPE_PCI) { | |
445 | drc->allocation_state = SPAPR_DR_ALLOCATION_STATE_UNUSABLE; | |
bbf5c878 | 446 | } |
f8dc2983 | 447 | drc->dr_indicator = SPAPR_DR_INDICATOR_INACTIVE; |
bbf5c878 MR |
448 | } |
449 | } | |
450 | ||
a50919dd DHB |
451 | static bool spapr_drc_needed(void *opaque) |
452 | { | |
453 | sPAPRDRConnector *drc = (sPAPRDRConnector *)opaque; | |
454 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
455 | bool rc = false; | |
f224d35b | 456 | sPAPRDREntitySense value = drck->dr_entity_sense(drc); |
a50919dd DHB |
457 | |
458 | /* If no dev is plugged in there is no need to migrate the DRC state */ | |
459 | if (value != SPAPR_DR_ENTITY_SENSE_PRESENT) { | |
460 | return false; | |
461 | } | |
462 | ||
463 | /* | |
464 | * If there is dev plugged in, we need to migrate the DRC state when | |
465 | * it is different from cold-plugged state | |
466 | */ | |
2d335818 | 467 | switch (spapr_drc_type(drc)) { |
a50919dd | 468 | case SPAPR_DR_CONNECTOR_TYPE_PCI: |
a50919dd DHB |
469 | case SPAPR_DR_CONNECTOR_TYPE_CPU: |
470 | case SPAPR_DR_CONNECTOR_TYPE_LMB: | |
a32e900b GK |
471 | rc = !((drc->isolation_state == SPAPR_DR_ISOLATION_STATE_UNISOLATED) && |
472 | (drc->allocation_state == SPAPR_DR_ALLOCATION_STATE_USABLE) && | |
307b7715 | 473 | drc->configured && !drc->awaiting_release); |
a50919dd DHB |
474 | break; |
475 | case SPAPR_DR_CONNECTOR_TYPE_PHB: | |
476 | case SPAPR_DR_CONNECTOR_TYPE_VIO: | |
477 | default: | |
a32e900b | 478 | g_assert_not_reached(); |
a50919dd DHB |
479 | } |
480 | return rc; | |
481 | } | |
482 | ||
483 | static const VMStateDescription vmstate_spapr_drc = { | |
484 | .name = "spapr_drc", | |
485 | .version_id = 1, | |
486 | .minimum_version_id = 1, | |
487 | .needed = spapr_drc_needed, | |
488 | .fields = (VMStateField []) { | |
489 | VMSTATE_UINT32(isolation_state, sPAPRDRConnector), | |
490 | VMSTATE_UINT32(allocation_state, sPAPRDRConnector), | |
cd74d27e | 491 | VMSTATE_UINT32(dr_indicator, sPAPRDRConnector), |
a50919dd DHB |
492 | VMSTATE_BOOL(configured, sPAPRDRConnector), |
493 | VMSTATE_BOOL(awaiting_release, sPAPRDRConnector), | |
494 | VMSTATE_BOOL(awaiting_allocation, sPAPRDRConnector), | |
a50919dd DHB |
495 | VMSTATE_END_OF_LIST() |
496 | } | |
497 | }; | |
498 | ||
bbf5c878 MR |
499 | static void realize(DeviceState *d, Error **errp) |
500 | { | |
501 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d); | |
bbf5c878 MR |
502 | Object *root_container; |
503 | char link_name[256]; | |
504 | gchar *child_name; | |
505 | Error *err = NULL; | |
506 | ||
0b55aa91 | 507 | trace_spapr_drc_realize(spapr_drc_index(drc)); |
bbf5c878 MR |
508 | /* NOTE: we do this as part of realize/unrealize due to the fact |
509 | * that the guest will communicate with the DRC via RTAS calls | |
510 | * referencing the global DRC index. By unlinking the DRC | |
511 | * from DRC_CONTAINER_PATH/<drc_index> we effectively make it | |
512 | * inaccessible by the guest, since lookups rely on this path | |
513 | * existing in the composition tree | |
514 | */ | |
515 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); | |
0b55aa91 | 516 | snprintf(link_name, sizeof(link_name), "%x", spapr_drc_index(drc)); |
bbf5c878 | 517 | child_name = object_get_canonical_path_component(OBJECT(drc)); |
0b55aa91 | 518 | trace_spapr_drc_realize_child(spapr_drc_index(drc), child_name); |
bbf5c878 MR |
519 | object_property_add_alias(root_container, link_name, |
520 | drc->owner, child_name, &err); | |
521 | if (err) { | |
4fffeb5e | 522 | error_report_err(err); |
bbf5c878 MR |
523 | object_unref(OBJECT(drc)); |
524 | } | |
586d2142 | 525 | g_free(child_name); |
0b55aa91 | 526 | vmstate_register(DEVICE(drc), spapr_drc_index(drc), &vmstate_spapr_drc, |
a50919dd | 527 | drc); |
6caf3ac6 | 528 | qemu_register_reset(drc_reset, drc); |
0b55aa91 | 529 | trace_spapr_drc_realize_complete(spapr_drc_index(drc)); |
bbf5c878 MR |
530 | } |
531 | ||
532 | static void unrealize(DeviceState *d, Error **errp) | |
533 | { | |
534 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d); | |
bbf5c878 MR |
535 | Object *root_container; |
536 | char name[256]; | |
537 | Error *err = NULL; | |
538 | ||
0b55aa91 | 539 | trace_spapr_drc_unrealize(spapr_drc_index(drc)); |
bbf5c878 | 540 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); |
0b55aa91 | 541 | snprintf(name, sizeof(name), "%x", spapr_drc_index(drc)); |
bbf5c878 MR |
542 | object_property_del(root_container, name, &err); |
543 | if (err) { | |
4fffeb5e | 544 | error_report_err(err); |
bbf5c878 MR |
545 | object_unref(OBJECT(drc)); |
546 | } | |
547 | } | |
548 | ||
2d335818 | 549 | sPAPRDRConnector *spapr_dr_connector_new(Object *owner, const char *type, |
bbf5c878 MR |
550 | uint32_t id) |
551 | { | |
2d335818 | 552 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(object_new(type)); |
94649d42 | 553 | char *prop_name; |
bbf5c878 | 554 | |
bbf5c878 MR |
555 | drc->id = id; |
556 | drc->owner = owner; | |
0b55aa91 DG |
557 | prop_name = g_strdup_printf("dr-connector[%"PRIu32"]", |
558 | spapr_drc_index(drc)); | |
94649d42 | 559 | object_property_add_child(owner, prop_name, OBJECT(drc), NULL); |
bbf5c878 | 560 | object_property_set_bool(OBJECT(drc), true, "realized", NULL); |
94649d42 | 561 | g_free(prop_name); |
bbf5c878 | 562 | |
bbf5c878 | 563 | /* PCI slot always start in a USABLE state, and stay there */ |
2d335818 | 564 | if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_PCI) { |
bbf5c878 MR |
565 | drc->allocation_state = SPAPR_DR_ALLOCATION_STATE_USABLE; |
566 | } | |
567 | ||
568 | return drc; | |
569 | } | |
570 | ||
571 | static void spapr_dr_connector_instance_init(Object *obj) | |
572 | { | |
573 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
574 | ||
bbf5c878 MR |
575 | object_property_add_uint32_ptr(obj, "id", &drc->id, NULL); |
576 | object_property_add(obj, "index", "uint32", prop_get_index, | |
577 | NULL, NULL, NULL, NULL); | |
bbf5c878 MR |
578 | object_property_add(obj, "fdt", "struct", prop_get_fdt, |
579 | NULL, NULL, NULL, NULL); | |
580 | } | |
581 | ||
582 | static void spapr_dr_connector_class_init(ObjectClass *k, void *data) | |
583 | { | |
584 | DeviceClass *dk = DEVICE_CLASS(k); | |
585 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
586 | ||
bbf5c878 MR |
587 | dk->realize = realize; |
588 | dk->unrealize = unrealize; | |
bbf5c878 | 589 | drck->release_pending = release_pending; |
c401ae8c MA |
590 | /* |
591 | * Reason: it crashes FIXME find and document the real reason | |
592 | */ | |
e90f2a8c | 593 | dk->user_creatable = false; |
bbf5c878 MR |
594 | } |
595 | ||
f224d35b DG |
596 | static void spapr_drc_physical_class_init(ObjectClass *k, void *data) |
597 | { | |
598 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
599 | ||
600 | drck->dr_entity_sense = physical_entity_sense; | |
0dfabd39 DG |
601 | drck->isolate = drc_isolate_physical; |
602 | drck->unisolate = drc_unisolate_physical; | |
f224d35b DG |
603 | } |
604 | ||
605 | static void spapr_drc_logical_class_init(ObjectClass *k, void *data) | |
606 | { | |
607 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
608 | ||
609 | drck->dr_entity_sense = logical_entity_sense; | |
0dfabd39 DG |
610 | drck->isolate = drc_isolate_logical; |
611 | drck->unisolate = drc_unisolate_logical; | |
f224d35b DG |
612 | } |
613 | ||
2d335818 DG |
614 | static void spapr_drc_cpu_class_init(ObjectClass *k, void *data) |
615 | { | |
616 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
617 | ||
618 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_CPU; | |
1693ea16 | 619 | drck->typename = "CPU"; |
79808336 | 620 | drck->drc_name_prefix = "CPU "; |
6b762f29 | 621 | drck->release = spapr_core_release; |
2d335818 DG |
622 | } |
623 | ||
624 | static void spapr_drc_pci_class_init(ObjectClass *k, void *data) | |
625 | { | |
626 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
627 | ||
628 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_PCI; | |
1693ea16 | 629 | drck->typename = "28"; |
79808336 | 630 | drck->drc_name_prefix = "C"; |
6b762f29 | 631 | drck->release = spapr_phb_remove_pci_device_cb; |
2d335818 DG |
632 | } |
633 | ||
634 | static void spapr_drc_lmb_class_init(ObjectClass *k, void *data) | |
635 | { | |
636 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
637 | ||
638 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_LMB; | |
1693ea16 | 639 | drck->typename = "MEM"; |
79808336 | 640 | drck->drc_name_prefix = "LMB "; |
6b762f29 | 641 | drck->release = spapr_lmb_release; |
2d335818 DG |
642 | } |
643 | ||
bbf5c878 MR |
644 | static const TypeInfo spapr_dr_connector_info = { |
645 | .name = TYPE_SPAPR_DR_CONNECTOR, | |
646 | .parent = TYPE_DEVICE, | |
647 | .instance_size = sizeof(sPAPRDRConnector), | |
648 | .instance_init = spapr_dr_connector_instance_init, | |
649 | .class_size = sizeof(sPAPRDRConnectorClass), | |
650 | .class_init = spapr_dr_connector_class_init, | |
2d335818 DG |
651 | .abstract = true, |
652 | }; | |
653 | ||
654 | static const TypeInfo spapr_drc_physical_info = { | |
655 | .name = TYPE_SPAPR_DRC_PHYSICAL, | |
656 | .parent = TYPE_SPAPR_DR_CONNECTOR, | |
657 | .instance_size = sizeof(sPAPRDRConnector), | |
f224d35b | 658 | .class_init = spapr_drc_physical_class_init, |
2d335818 DG |
659 | .abstract = true, |
660 | }; | |
661 | ||
662 | static const TypeInfo spapr_drc_logical_info = { | |
663 | .name = TYPE_SPAPR_DRC_LOGICAL, | |
664 | .parent = TYPE_SPAPR_DR_CONNECTOR, | |
665 | .instance_size = sizeof(sPAPRDRConnector), | |
f224d35b | 666 | .class_init = spapr_drc_logical_class_init, |
2d335818 DG |
667 | .abstract = true, |
668 | }; | |
669 | ||
670 | static const TypeInfo spapr_drc_cpu_info = { | |
671 | .name = TYPE_SPAPR_DRC_CPU, | |
672 | .parent = TYPE_SPAPR_DRC_LOGICAL, | |
673 | .instance_size = sizeof(sPAPRDRConnector), | |
674 | .class_init = spapr_drc_cpu_class_init, | |
675 | }; | |
676 | ||
677 | static const TypeInfo spapr_drc_pci_info = { | |
678 | .name = TYPE_SPAPR_DRC_PCI, | |
679 | .parent = TYPE_SPAPR_DRC_PHYSICAL, | |
680 | .instance_size = sizeof(sPAPRDRConnector), | |
681 | .class_init = spapr_drc_pci_class_init, | |
682 | }; | |
683 | ||
684 | static const TypeInfo spapr_drc_lmb_info = { | |
685 | .name = TYPE_SPAPR_DRC_LMB, | |
686 | .parent = TYPE_SPAPR_DRC_LOGICAL, | |
687 | .instance_size = sizeof(sPAPRDRConnector), | |
688 | .class_init = spapr_drc_lmb_class_init, | |
bbf5c878 MR |
689 | }; |
690 | ||
bbf5c878 MR |
691 | /* helper functions for external users */ |
692 | ||
fbf55397 | 693 | sPAPRDRConnector *spapr_drc_by_index(uint32_t index) |
bbf5c878 MR |
694 | { |
695 | Object *obj; | |
696 | char name[256]; | |
697 | ||
698 | snprintf(name, sizeof(name), "%s/%x", DRC_CONTAINER_PATH, index); | |
699 | obj = object_resolve_path(name, NULL); | |
700 | ||
701 | return !obj ? NULL : SPAPR_DR_CONNECTOR(obj); | |
702 | } | |
703 | ||
fbf55397 | 704 | sPAPRDRConnector *spapr_drc_by_id(const char *type, uint32_t id) |
bbf5c878 | 705 | { |
fbf55397 DG |
706 | sPAPRDRConnectorClass *drck |
707 | = SPAPR_DR_CONNECTOR_CLASS(object_class_by_name(type)); | |
708 | ||
709 | return spapr_drc_by_index(drck->typeshift << DRC_INDEX_TYPE_SHIFT | |
710 | | (id & DRC_INDEX_ID_MASK)); | |
bbf5c878 | 711 | } |
e4b798bb | 712 | |
e4b798bb MR |
713 | /** |
714 | * spapr_drc_populate_dt | |
715 | * | |
716 | * @fdt: libfdt device tree | |
717 | * @path: path in the DT to generate properties | |
718 | * @owner: parent Object/DeviceState for which to generate DRC | |
719 | * descriptions for | |
720 | * @drc_type_mask: mask of sPAPRDRConnectorType values corresponding | |
721 | * to the types of DRCs to generate entries for | |
722 | * | |
723 | * generate OF properties to describe DRC topology/indices to guests | |
724 | * | |
725 | * as documented in PAPR+ v2.1, 13.5.2 | |
726 | */ | |
727 | int spapr_drc_populate_dt(void *fdt, int fdt_offset, Object *owner, | |
728 | uint32_t drc_type_mask) | |
729 | { | |
730 | Object *root_container; | |
731 | ObjectProperty *prop; | |
7746abd8 | 732 | ObjectPropertyIterator iter; |
e4b798bb MR |
733 | uint32_t drc_count = 0; |
734 | GArray *drc_indexes, *drc_power_domains; | |
735 | GString *drc_names, *drc_types; | |
736 | int ret; | |
737 | ||
738 | /* the first entry of each properties is a 32-bit integer encoding | |
739 | * the number of elements in the array. we won't know this until | |
740 | * we complete the iteration through all the matching DRCs, but | |
741 | * reserve the space now and set the offsets accordingly so we | |
742 | * can fill them in later. | |
743 | */ | |
744 | drc_indexes = g_array_new(false, true, sizeof(uint32_t)); | |
745 | drc_indexes = g_array_set_size(drc_indexes, 1); | |
746 | drc_power_domains = g_array_new(false, true, sizeof(uint32_t)); | |
747 | drc_power_domains = g_array_set_size(drc_power_domains, 1); | |
748 | drc_names = g_string_set_size(g_string_new(NULL), sizeof(uint32_t)); | |
749 | drc_types = g_string_set_size(g_string_new(NULL), sizeof(uint32_t)); | |
750 | ||
751 | /* aliases for all DRConnector objects will be rooted in QOM | |
752 | * composition tree at DRC_CONTAINER_PATH | |
753 | */ | |
754 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); | |
755 | ||
7746abd8 DB |
756 | object_property_iter_init(&iter, root_container); |
757 | while ((prop = object_property_iter_next(&iter))) { | |
e4b798bb MR |
758 | Object *obj; |
759 | sPAPRDRConnector *drc; | |
760 | sPAPRDRConnectorClass *drck; | |
761 | uint32_t drc_index, drc_power_domain; | |
762 | ||
763 | if (!strstart(prop->type, "link<", NULL)) { | |
764 | continue; | |
765 | } | |
766 | ||
767 | obj = object_property_get_link(root_container, prop->name, NULL); | |
768 | drc = SPAPR_DR_CONNECTOR(obj); | |
769 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
770 | ||
771 | if (owner && (drc->owner != owner)) { | |
772 | continue; | |
773 | } | |
774 | ||
2d335818 | 775 | if ((spapr_drc_type(drc) & drc_type_mask) == 0) { |
e4b798bb MR |
776 | continue; |
777 | } | |
778 | ||
779 | drc_count++; | |
780 | ||
781 | /* ibm,drc-indexes */ | |
0b55aa91 | 782 | drc_index = cpu_to_be32(spapr_drc_index(drc)); |
e4b798bb MR |
783 | g_array_append_val(drc_indexes, drc_index); |
784 | ||
785 | /* ibm,drc-power-domains */ | |
786 | drc_power_domain = cpu_to_be32(-1); | |
787 | g_array_append_val(drc_power_domains, drc_power_domain); | |
788 | ||
789 | /* ibm,drc-names */ | |
79808336 | 790 | drc_names = g_string_append(drc_names, spapr_drc_name(drc)); |
e4b798bb MR |
791 | drc_names = g_string_insert_len(drc_names, -1, "\0", 1); |
792 | ||
793 | /* ibm,drc-types */ | |
1693ea16 | 794 | drc_types = g_string_append(drc_types, drck->typename); |
e4b798bb MR |
795 | drc_types = g_string_insert_len(drc_types, -1, "\0", 1); |
796 | } | |
797 | ||
798 | /* now write the drc count into the space we reserved at the | |
799 | * beginning of the arrays previously | |
800 | */ | |
801 | *(uint32_t *)drc_indexes->data = cpu_to_be32(drc_count); | |
802 | *(uint32_t *)drc_power_domains->data = cpu_to_be32(drc_count); | |
803 | *(uint32_t *)drc_names->str = cpu_to_be32(drc_count); | |
804 | *(uint32_t *)drc_types->str = cpu_to_be32(drc_count); | |
805 | ||
806 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-indexes", | |
807 | drc_indexes->data, | |
808 | drc_indexes->len * sizeof(uint32_t)); | |
809 | if (ret) { | |
ce9863b7 | 810 | error_report("Couldn't create ibm,drc-indexes property"); |
e4b798bb MR |
811 | goto out; |
812 | } | |
813 | ||
814 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-power-domains", | |
815 | drc_power_domains->data, | |
816 | drc_power_domains->len * sizeof(uint32_t)); | |
817 | if (ret) { | |
ce9863b7 | 818 | error_report("Couldn't finalize ibm,drc-power-domains property"); |
e4b798bb MR |
819 | goto out; |
820 | } | |
821 | ||
822 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-names", | |
823 | drc_names->str, drc_names->len); | |
824 | if (ret) { | |
ce9863b7 | 825 | error_report("Couldn't finalize ibm,drc-names property"); |
e4b798bb MR |
826 | goto out; |
827 | } | |
828 | ||
829 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-types", | |
830 | drc_types->str, drc_types->len); | |
831 | if (ret) { | |
ce9863b7 | 832 | error_report("Couldn't finalize ibm,drc-types property"); |
e4b798bb MR |
833 | goto out; |
834 | } | |
835 | ||
836 | out: | |
837 | g_array_free(drc_indexes, true); | |
838 | g_array_free(drc_power_domains, true); | |
839 | g_string_free(drc_names, true); | |
840 | g_string_free(drc_types, true); | |
841 | ||
842 | return ret; | |
843 | } | |
b89b3d39 DG |
844 | |
845 | /* | |
846 | * RTAS calls | |
847 | */ | |
848 | ||
7b7258f8 | 849 | static uint32_t rtas_set_isolation_state(uint32_t idx, uint32_t state) |
b89b3d39 | 850 | { |
7b7258f8 DG |
851 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); |
852 | sPAPRDRConnectorClass *drck; | |
853 | ||
854 | if (!drc) { | |
0dfabd39 | 855 | return RTAS_OUT_NO_SUCH_INDICATOR; |
b89b3d39 DG |
856 | } |
857 | ||
0dfabd39 DG |
858 | trace_spapr_drc_set_isolation_state(spapr_drc_index(drc), state); |
859 | ||
7b7258f8 | 860 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
0dfabd39 DG |
861 | |
862 | switch (state) { | |
863 | case SPAPR_DR_ISOLATION_STATE_ISOLATED: | |
864 | return drck->isolate(drc); | |
865 | ||
866 | case SPAPR_DR_ISOLATION_STATE_UNISOLATED: | |
867 | return drck->unisolate(drc); | |
868 | ||
869 | default: | |
870 | return RTAS_OUT_PARAM_ERROR; | |
871 | } | |
b89b3d39 DG |
872 | } |
873 | ||
7b7258f8 | 874 | static uint32_t rtas_set_allocation_state(uint32_t idx, uint32_t state) |
b89b3d39 | 875 | { |
7b7258f8 | 876 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); |
b89b3d39 | 877 | |
61736732 DG |
878 | if (!drc || !object_dynamic_cast(OBJECT(drc), TYPE_SPAPR_DRC_LOGICAL)) { |
879 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
b89b3d39 DG |
880 | } |
881 | ||
61736732 DG |
882 | trace_spapr_drc_set_allocation_state(spapr_drc_index(drc), state); |
883 | ||
884 | switch (state) { | |
885 | case SPAPR_DR_ALLOCATION_STATE_USABLE: | |
886 | return drc_set_usable(drc); | |
887 | ||
888 | case SPAPR_DR_ALLOCATION_STATE_UNUSABLE: | |
889 | return drc_set_unusable(drc); | |
890 | ||
891 | default: | |
892 | return RTAS_OUT_PARAM_ERROR; | |
893 | } | |
7b7258f8 | 894 | } |
b89b3d39 | 895 | |
cd74d27e | 896 | static uint32_t rtas_set_dr_indicator(uint32_t idx, uint32_t state) |
7b7258f8 DG |
897 | { |
898 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); | |
b89b3d39 | 899 | |
b89b3d39 | 900 | if (!drc) { |
7b7258f8 DG |
901 | return RTAS_OUT_PARAM_ERROR; |
902 | } | |
903 | ||
cd74d27e DG |
904 | trace_spapr_drc_set_dr_indicator(idx, state); |
905 | drc->dr_indicator = state; | |
906 | return RTAS_OUT_SUCCESS; | |
7b7258f8 DG |
907 | } |
908 | ||
909 | static void rtas_set_indicator(PowerPCCPU *cpu, sPAPRMachineState *spapr, | |
910 | uint32_t token, | |
911 | uint32_t nargs, target_ulong args, | |
912 | uint32_t nret, target_ulong rets) | |
913 | { | |
914 | uint32_t type, idx, state; | |
915 | uint32_t ret = RTAS_OUT_SUCCESS; | |
916 | ||
917 | if (nargs != 3 || nret != 1) { | |
b89b3d39 DG |
918 | ret = RTAS_OUT_PARAM_ERROR; |
919 | goto out; | |
920 | } | |
b89b3d39 | 921 | |
7b7258f8 DG |
922 | type = rtas_ld(args, 0); |
923 | idx = rtas_ld(args, 1); | |
924 | state = rtas_ld(args, 2); | |
925 | ||
926 | switch (type) { | |
b89b3d39 | 927 | case RTAS_SENSOR_TYPE_ISOLATION_STATE: |
7b7258f8 | 928 | ret = rtas_set_isolation_state(idx, state); |
b89b3d39 DG |
929 | break; |
930 | case RTAS_SENSOR_TYPE_DR: | |
cd74d27e | 931 | ret = rtas_set_dr_indicator(idx, state); |
b89b3d39 DG |
932 | break; |
933 | case RTAS_SENSOR_TYPE_ALLOCATION_STATE: | |
7b7258f8 | 934 | ret = rtas_set_allocation_state(idx, state); |
b89b3d39 DG |
935 | break; |
936 | default: | |
7b7258f8 | 937 | ret = RTAS_OUT_NOT_SUPPORTED; |
b89b3d39 DG |
938 | } |
939 | ||
940 | out: | |
941 | rtas_st(rets, 0, ret); | |
b89b3d39 DG |
942 | } |
943 | ||
944 | static void rtas_get_sensor_state(PowerPCCPU *cpu, sPAPRMachineState *spapr, | |
945 | uint32_t token, uint32_t nargs, | |
946 | target_ulong args, uint32_t nret, | |
947 | target_ulong rets) | |
948 | { | |
949 | uint32_t sensor_type; | |
950 | uint32_t sensor_index; | |
951 | uint32_t sensor_state = 0; | |
952 | sPAPRDRConnector *drc; | |
953 | sPAPRDRConnectorClass *drck; | |
954 | uint32_t ret = RTAS_OUT_SUCCESS; | |
955 | ||
956 | if (nargs != 2 || nret != 2) { | |
957 | ret = RTAS_OUT_PARAM_ERROR; | |
958 | goto out; | |
959 | } | |
960 | ||
961 | sensor_type = rtas_ld(args, 0); | |
962 | sensor_index = rtas_ld(args, 1); | |
963 | ||
964 | if (sensor_type != RTAS_SENSOR_TYPE_ENTITY_SENSE) { | |
965 | /* currently only DR-related sensors are implemented */ | |
966 | trace_spapr_rtas_get_sensor_state_not_supported(sensor_index, | |
967 | sensor_type); | |
968 | ret = RTAS_OUT_NOT_SUPPORTED; | |
969 | goto out; | |
970 | } | |
971 | ||
fbf55397 | 972 | drc = spapr_drc_by_index(sensor_index); |
b89b3d39 DG |
973 | if (!drc) { |
974 | trace_spapr_rtas_get_sensor_state_invalid(sensor_index); | |
975 | ret = RTAS_OUT_PARAM_ERROR; | |
976 | goto out; | |
977 | } | |
978 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
f224d35b | 979 | sensor_state = drck->dr_entity_sense(drc); |
b89b3d39 DG |
980 | |
981 | out: | |
982 | rtas_st(rets, 0, ret); | |
983 | rtas_st(rets, 1, sensor_state); | |
984 | } | |
985 | ||
986 | /* configure-connector work area offsets, int32_t units for field | |
987 | * indexes, bytes for field offset/len values. | |
988 | * | |
989 | * as documented by PAPR+ v2.7, 13.5.3.5 | |
990 | */ | |
991 | #define CC_IDX_NODE_NAME_OFFSET 2 | |
992 | #define CC_IDX_PROP_NAME_OFFSET 2 | |
993 | #define CC_IDX_PROP_LEN 3 | |
994 | #define CC_IDX_PROP_DATA_OFFSET 4 | |
995 | #define CC_VAL_DATA_OFFSET ((CC_IDX_PROP_DATA_OFFSET + 1) * 4) | |
996 | #define CC_WA_LEN 4096 | |
997 | ||
998 | static void configure_connector_st(target_ulong addr, target_ulong offset, | |
999 | const void *buf, size_t len) | |
1000 | { | |
1001 | cpu_physical_memory_write(ppc64_phys_to_real(addr + offset), | |
1002 | buf, MIN(len, CC_WA_LEN - offset)); | |
1003 | } | |
1004 | ||
b89b3d39 DG |
1005 | static void rtas_ibm_configure_connector(PowerPCCPU *cpu, |
1006 | sPAPRMachineState *spapr, | |
1007 | uint32_t token, uint32_t nargs, | |
1008 | target_ulong args, uint32_t nret, | |
1009 | target_ulong rets) | |
1010 | { | |
1011 | uint64_t wa_addr; | |
1012 | uint64_t wa_offset; | |
1013 | uint32_t drc_index; | |
1014 | sPAPRDRConnector *drc; | |
b89b3d39 DG |
1015 | sPAPRConfigureConnectorState *ccs; |
1016 | sPAPRDRCCResponse resp = SPAPR_DR_CC_RESPONSE_CONTINUE; | |
1017 | int rc; | |
b89b3d39 DG |
1018 | |
1019 | if (nargs != 2 || nret != 1) { | |
1020 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); | |
1021 | return; | |
1022 | } | |
1023 | ||
1024 | wa_addr = ((uint64_t)rtas_ld(args, 1) << 32) | rtas_ld(args, 0); | |
1025 | ||
1026 | drc_index = rtas_ld(wa_addr, 0); | |
fbf55397 | 1027 | drc = spapr_drc_by_index(drc_index); |
b89b3d39 DG |
1028 | if (!drc) { |
1029 | trace_spapr_rtas_ibm_configure_connector_invalid(drc_index); | |
1030 | rc = RTAS_OUT_PARAM_ERROR; | |
1031 | goto out; | |
1032 | } | |
1033 | ||
88af6ea5 | 1034 | if (!drc->fdt) { |
b89b3d39 DG |
1035 | trace_spapr_rtas_ibm_configure_connector_missing_fdt(drc_index); |
1036 | rc = SPAPR_DR_CC_RESPONSE_NOT_CONFIGURABLE; | |
1037 | goto out; | |
1038 | } | |
1039 | ||
b8fdd530 | 1040 | ccs = drc->ccs; |
b89b3d39 DG |
1041 | if (!ccs) { |
1042 | ccs = g_new0(sPAPRConfigureConnectorState, 1); | |
88af6ea5 | 1043 | ccs->fdt_offset = drc->fdt_start_offset; |
b8fdd530 | 1044 | drc->ccs = ccs; |
b89b3d39 DG |
1045 | } |
1046 | ||
1047 | do { | |
1048 | uint32_t tag; | |
1049 | const char *name; | |
1050 | const struct fdt_property *prop; | |
1051 | int fdt_offset_next, prop_len; | |
1052 | ||
88af6ea5 | 1053 | tag = fdt_next_tag(drc->fdt, ccs->fdt_offset, &fdt_offset_next); |
b89b3d39 DG |
1054 | |
1055 | switch (tag) { | |
1056 | case FDT_BEGIN_NODE: | |
1057 | ccs->fdt_depth++; | |
88af6ea5 | 1058 | name = fdt_get_name(drc->fdt, ccs->fdt_offset, NULL); |
b89b3d39 DG |
1059 | |
1060 | /* provide the name of the next OF node */ | |
1061 | wa_offset = CC_VAL_DATA_OFFSET; | |
1062 | rtas_st(wa_addr, CC_IDX_NODE_NAME_OFFSET, wa_offset); | |
1063 | configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1); | |
1064 | resp = SPAPR_DR_CC_RESPONSE_NEXT_CHILD; | |
1065 | break; | |
1066 | case FDT_END_NODE: | |
1067 | ccs->fdt_depth--; | |
1068 | if (ccs->fdt_depth == 0) { | |
4f65ce00 | 1069 | sPAPRDRIsolationState state = drc->isolation_state; |
0b55aa91 | 1070 | uint32_t drc_index = spapr_drc_index(drc); |
b89b3d39 DG |
1071 | /* done sending the device tree, don't need to track |
1072 | * the state anymore | |
1073 | */ | |
0b55aa91 | 1074 | trace_spapr_drc_set_configured(drc_index); |
4f65ce00 DG |
1075 | if (state == SPAPR_DR_ISOLATION_STATE_UNISOLATED) { |
1076 | drc->configured = true; | |
1077 | } else { | |
1078 | /* guest should be not configuring an isolated device */ | |
0b55aa91 | 1079 | trace_spapr_drc_set_configured_skipping(drc_index); |
4f65ce00 | 1080 | } |
b8fdd530 DG |
1081 | g_free(ccs); |
1082 | drc->ccs = NULL; | |
b89b3d39 DG |
1083 | ccs = NULL; |
1084 | resp = SPAPR_DR_CC_RESPONSE_SUCCESS; | |
1085 | } else { | |
1086 | resp = SPAPR_DR_CC_RESPONSE_PREV_PARENT; | |
1087 | } | |
1088 | break; | |
1089 | case FDT_PROP: | |
88af6ea5 | 1090 | prop = fdt_get_property_by_offset(drc->fdt, ccs->fdt_offset, |
b89b3d39 | 1091 | &prop_len); |
88af6ea5 | 1092 | name = fdt_string(drc->fdt, fdt32_to_cpu(prop->nameoff)); |
b89b3d39 DG |
1093 | |
1094 | /* provide the name of the next OF property */ | |
1095 | wa_offset = CC_VAL_DATA_OFFSET; | |
1096 | rtas_st(wa_addr, CC_IDX_PROP_NAME_OFFSET, wa_offset); | |
1097 | configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1); | |
1098 | ||
1099 | /* provide the length and value of the OF property. data gets | |
1100 | * placed immediately after NULL terminator of the OF property's | |
1101 | * name string | |
1102 | */ | |
1103 | wa_offset += strlen(name) + 1, | |
1104 | rtas_st(wa_addr, CC_IDX_PROP_LEN, prop_len); | |
1105 | rtas_st(wa_addr, CC_IDX_PROP_DATA_OFFSET, wa_offset); | |
1106 | configure_connector_st(wa_addr, wa_offset, prop->data, prop_len); | |
1107 | resp = SPAPR_DR_CC_RESPONSE_NEXT_PROPERTY; | |
1108 | break; | |
1109 | case FDT_END: | |
1110 | resp = SPAPR_DR_CC_RESPONSE_ERROR; | |
1111 | default: | |
1112 | /* keep seeking for an actionable tag */ | |
1113 | break; | |
1114 | } | |
1115 | if (ccs) { | |
1116 | ccs->fdt_offset = fdt_offset_next; | |
1117 | } | |
1118 | } while (resp == SPAPR_DR_CC_RESPONSE_CONTINUE); | |
1119 | ||
1120 | rc = resp; | |
1121 | out: | |
1122 | rtas_st(rets, 0, rc); | |
1123 | } | |
1124 | ||
1125 | static void spapr_drc_register_types(void) | |
1126 | { | |
1127 | type_register_static(&spapr_dr_connector_info); | |
2d335818 DG |
1128 | type_register_static(&spapr_drc_physical_info); |
1129 | type_register_static(&spapr_drc_logical_info); | |
1130 | type_register_static(&spapr_drc_cpu_info); | |
1131 | type_register_static(&spapr_drc_pci_info); | |
1132 | type_register_static(&spapr_drc_lmb_info); | |
b89b3d39 DG |
1133 | |
1134 | spapr_rtas_register(RTAS_SET_INDICATOR, "set-indicator", | |
1135 | rtas_set_indicator); | |
1136 | spapr_rtas_register(RTAS_GET_SENSOR_STATE, "get-sensor-state", | |
1137 | rtas_get_sensor_state); | |
1138 | spapr_rtas_register(RTAS_IBM_CONFIGURE_CONNECTOR, "ibm,configure-connector", | |
1139 | rtas_ibm_configure_connector); | |
1140 | } | |
1141 | type_init(spapr_drc_register_types) |