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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 | { |
9d4c0f4f DG |
51 | switch (drc->state) { |
52 | case SPAPR_DRC_STATE_PHYSICAL_POWERON: | |
53 | return RTAS_OUT_SUCCESS; /* Nothing to do */ | |
54 | case SPAPR_DRC_STATE_PHYSICAL_CONFIGURED: | |
55 | break; /* see below */ | |
56 | case SPAPR_DRC_STATE_PHYSICAL_UNISOLATE: | |
57 | return RTAS_OUT_PARAM_ERROR; /* not allowed */ | |
58 | default: | |
59 | g_assert_not_reached(); | |
60 | } | |
61 | ||
b8fdd530 DG |
62 | /* if the guest is configuring a device attached to this DRC, we |
63 | * should reset the configuration state at this point since it may | |
64 | * no longer be reliable (guest released device and needs to start | |
65 | * over, or unplug occurred so the FDT is no longer valid) | |
66 | */ | |
0dfabd39 DG |
67 | g_free(drc->ccs); |
68 | drc->ccs = NULL; | |
b8fdd530 | 69 | |
9d4c0f4f | 70 | drc->state = SPAPR_DRC_STATE_PHYSICAL_POWERON; |
0dfabd39 | 71 | |
f1c52354 | 72 | if (drc->unplug_requested) { |
0dfabd39 | 73 | uint32_t drc_index = spapr_drc_index(drc); |
9d4c0f4f DG |
74 | trace_spapr_drc_set_isolation_state_finalizing(drc_index); |
75 | spapr_drc_detach(drc); | |
9d1852ce | 76 | } |
0dfabd39 DG |
77 | |
78 | return RTAS_OUT_SUCCESS; | |
79 | } | |
80 | ||
81 | static uint32_t drc_unisolate_physical(sPAPRDRConnector *drc) | |
82 | { | |
9d4c0f4f DG |
83 | switch (drc->state) { |
84 | case SPAPR_DRC_STATE_PHYSICAL_UNISOLATE: | |
85 | case SPAPR_DRC_STATE_PHYSICAL_CONFIGURED: | |
86 | return RTAS_OUT_SUCCESS; /* Nothing to do */ | |
87 | case SPAPR_DRC_STATE_PHYSICAL_POWERON: | |
88 | break; /* see below */ | |
89 | default: | |
90 | g_assert_not_reached(); | |
91 | } | |
92 | ||
0dfabd39 DG |
93 | /* cannot unisolate a non-existent resource, and, or resources |
94 | * which are in an 'UNUSABLE' allocation state. (PAPR 2.7, | |
95 | * 13.5.3.5) | |
96 | */ | |
97 | if (!drc->dev) { | |
98 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
99 | } | |
100 | ||
9d4c0f4f | 101 | drc->state = SPAPR_DRC_STATE_PHYSICAL_UNISOLATE; |
0dfabd39 DG |
102 | |
103 | return RTAS_OUT_SUCCESS; | |
104 | } | |
105 | ||
106 | static uint32_t drc_isolate_logical(sPAPRDRConnector *drc) | |
107 | { | |
9d4c0f4f DG |
108 | switch (drc->state) { |
109 | case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: | |
110 | case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: | |
111 | return RTAS_OUT_SUCCESS; /* Nothing to do */ | |
112 | case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: | |
113 | break; /* see below */ | |
114 | case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: | |
115 | return RTAS_OUT_PARAM_ERROR; /* not allowed */ | |
116 | default: | |
117 | g_assert_not_reached(); | |
118 | } | |
119 | ||
0dfabd39 DG |
120 | /* if the guest is configuring a device attached to this DRC, we |
121 | * should reset the configuration state at this point since it may | |
122 | * no longer be reliable (guest released device and needs to start | |
123 | * over, or unplug occurred so the FDT is no longer valid) | |
124 | */ | |
125 | g_free(drc->ccs); | |
126 | drc->ccs = NULL; | |
9d1852ce | 127 | |
cf632463 BR |
128 | /* |
129 | * Fail any requests to ISOLATE the LMB DRC if this LMB doesn't | |
130 | * belong to a DIMM device that is marked for removal. | |
131 | * | |
132 | * Currently the guest userspace tool drmgr that drives the memory | |
133 | * hotplug/unplug will just try to remove a set of 'removable' LMBs | |
134 | * in response to a hot unplug request that is based on drc-count. | |
135 | * If the LMB being removed doesn't belong to a DIMM device that is | |
136 | * actually being unplugged, fail the isolation request here. | |
137 | */ | |
0dfabd39 | 138 | if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_LMB |
f1c52354 | 139 | && !drc->unplug_requested) { |
0dfabd39 | 140 | return RTAS_OUT_HW_ERROR; |
cf632463 BR |
141 | } |
142 | ||
9d4c0f4f | 143 | drc->state = SPAPR_DRC_STATE_LOGICAL_AVAILABLE; |
bbf5c878 | 144 | |
0dfabd39 DG |
145 | /* if we're awaiting release, but still in an unconfigured state, |
146 | * it's likely the guest is still in the process of configuring | |
147 | * the device and is transitioning the devices to an ISOLATED | |
148 | * state as a part of that process. so we only complete the | |
149 | * removal when this transition happens for a device in a | |
150 | * configured state, as suggested by the state diagram from PAPR+ | |
151 | * 2.7, 13.4 | |
152 | */ | |
f1c52354 | 153 | if (drc->unplug_requested) { |
0dfabd39 | 154 | uint32_t drc_index = spapr_drc_index(drc); |
9d4c0f4f DG |
155 | trace_spapr_drc_set_isolation_state_finalizing(drc_index); |
156 | spapr_drc_detach(drc); | |
bbf5c878 | 157 | } |
0dfabd39 DG |
158 | return RTAS_OUT_SUCCESS; |
159 | } | |
160 | ||
161 | static uint32_t drc_unisolate_logical(sPAPRDRConnector *drc) | |
162 | { | |
9d4c0f4f DG |
163 | switch (drc->state) { |
164 | case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: | |
165 | case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: | |
166 | return RTAS_OUT_SUCCESS; /* Nothing to do */ | |
167 | case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: | |
168 | break; /* see below */ | |
169 | case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: | |
170 | return RTAS_OUT_NO_SUCH_INDICATOR; /* not allowed */ | |
171 | default: | |
172 | g_assert_not_reached(); | |
0dfabd39 DG |
173 | } |
174 | ||
9d4c0f4f DG |
175 | /* Move to AVAILABLE state should have ensured device was present */ |
176 | g_assert(drc->dev); | |
bbf5c878 | 177 | |
9d4c0f4f | 178 | drc->state = SPAPR_DRC_STATE_LOGICAL_UNISOLATE; |
0cb688d2 | 179 | return RTAS_OUT_SUCCESS; |
bbf5c878 MR |
180 | } |
181 | ||
61736732 | 182 | static uint32_t drc_set_usable(sPAPRDRConnector *drc) |
bbf5c878 | 183 | { |
9d4c0f4f DG |
184 | switch (drc->state) { |
185 | case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: | |
186 | case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: | |
187 | case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: | |
188 | return RTAS_OUT_SUCCESS; /* Nothing to do */ | |
189 | case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: | |
190 | break; /* see below */ | |
191 | default: | |
192 | g_assert_not_reached(); | |
193 | } | |
194 | ||
61736732 DG |
195 | /* if there's no resource/device associated with the DRC, there's |
196 | * no way for us to put it in an allocation state consistent with | |
197 | * being 'USABLE'. PAPR 2.7, 13.5.3.4 documents that this should | |
198 | * result in an RTAS return code of -3 / "no such indicator" | |
199 | */ | |
200 | if (!drc->dev) { | |
201 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
202 | } | |
f1c52354 | 203 | if (drc->unplug_requested) { |
82a93a1d DG |
204 | /* Don't allow the guest to move a device away from UNUSABLE |
205 | * state when we want to unplug it */ | |
61736732 | 206 | return RTAS_OUT_NO_SUCH_INDICATOR; |
9d1852ce MR |
207 | } |
208 | ||
9d4c0f4f | 209 | drc->state = SPAPR_DRC_STATE_LOGICAL_AVAILABLE; |
61736732 DG |
210 | |
211 | return RTAS_OUT_SUCCESS; | |
212 | } | |
213 | ||
214 | static uint32_t drc_set_unusable(sPAPRDRConnector *drc) | |
215 | { | |
9d4c0f4f DG |
216 | switch (drc->state) { |
217 | case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: | |
218 | return RTAS_OUT_SUCCESS; /* Nothing to do */ | |
219 | case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: | |
220 | break; /* see below */ | |
221 | case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: | |
222 | case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: | |
223 | return RTAS_OUT_NO_SUCH_INDICATOR; /* not allowed */ | |
224 | default: | |
225 | g_assert_not_reached(); | |
226 | } | |
227 | ||
228 | drc->state = SPAPR_DRC_STATE_LOGICAL_UNUSABLE; | |
f1c52354 | 229 | if (drc->unplug_requested) { |
61736732 DG |
230 | uint32_t drc_index = spapr_drc_index(drc); |
231 | trace_spapr_drc_set_allocation_state_finalizing(drc_index); | |
a8dc47fd | 232 | spapr_drc_detach(drc); |
bbf5c878 | 233 | } |
61736732 | 234 | |
0cb688d2 | 235 | return RTAS_OUT_SUCCESS; |
bbf5c878 MR |
236 | } |
237 | ||
79808336 | 238 | static const char *spapr_drc_name(sPAPRDRConnector *drc) |
bbf5c878 | 239 | { |
79808336 DG |
240 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
241 | ||
242 | /* human-readable name for a DRC to encode into the DT | |
243 | * description. this is mainly only used within a guest in place | |
244 | * of the unique DRC index. | |
245 | * | |
246 | * in the case of VIO/PCI devices, it corresponds to a "location | |
247 | * code" that maps a logical device/function (DRC index) to a | |
248 | * physical (or virtual in the case of VIO) location in the system | |
249 | * by chaining together the "location label" for each | |
250 | * encapsulating component. | |
251 | * | |
252 | * since this is more to do with diagnosing physical hardware | |
253 | * issues than guest compatibility, we choose location codes/DRC | |
254 | * names that adhere to the documented format, but avoid encoding | |
255 | * the entire topology information into the label/code, instead | |
256 | * just using the location codes based on the labels for the | |
257 | * endpoints (VIO/PCI adaptor connectors), which is basically just | |
258 | * "C" followed by an integer ID. | |
259 | * | |
260 | * DRC names as documented by PAPR+ v2.7, 13.5.2.4 | |
261 | * location codes as documented by PAPR+ v2.7, 12.3.1.5 | |
262 | */ | |
263 | return g_strdup_printf("%s%d", drck->drc_name_prefix, drc->id); | |
bbf5c878 MR |
264 | } |
265 | ||
bbf5c878 MR |
266 | /* |
267 | * dr-entity-sense sensor value | |
268 | * returned via get-sensor-state RTAS calls | |
269 | * as expected by state diagram in PAPR+ 2.7, 13.4 | |
270 | * based on the current allocation/indicator/power states | |
271 | * for the DR connector. | |
272 | */ | |
f224d35b | 273 | static sPAPRDREntitySense physical_entity_sense(sPAPRDRConnector *drc) |
bbf5c878 | 274 | { |
f224d35b DG |
275 | /* this assumes all PCI devices are assigned to a 'live insertion' |
276 | * power domain, where QEMU manages power state automatically as | |
277 | * opposed to the guest. present, non-PCI resources are unaffected | |
278 | * by power state. | |
279 | */ | |
280 | return drc->dev ? SPAPR_DR_ENTITY_SENSE_PRESENT | |
281 | : SPAPR_DR_ENTITY_SENSE_EMPTY; | |
282 | } | |
283 | ||
284 | static sPAPRDREntitySense logical_entity_sense(sPAPRDRConnector *drc) | |
285 | { | |
9d4c0f4f DG |
286 | switch (drc->state) { |
287 | case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: | |
f224d35b | 288 | return SPAPR_DR_ENTITY_SENSE_UNUSABLE; |
9d4c0f4f DG |
289 | case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: |
290 | case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: | |
291 | case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: | |
292 | g_assert(drc->dev); | |
293 | return SPAPR_DR_ENTITY_SENSE_PRESENT; | |
294 | default: | |
295 | g_assert_not_reached(); | |
bbf5c878 | 296 | } |
bbf5c878 MR |
297 | } |
298 | ||
d7bce999 EB |
299 | static void prop_get_index(Object *obj, Visitor *v, const char *name, |
300 | void *opaque, Error **errp) | |
bbf5c878 MR |
301 | { |
302 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
0b55aa91 | 303 | uint32_t value = spapr_drc_index(drc); |
51e72bc1 | 304 | visit_type_uint32(v, name, &value, errp); |
bbf5c878 MR |
305 | } |
306 | ||
d7bce999 EB |
307 | static void prop_get_fdt(Object *obj, Visitor *v, const char *name, |
308 | void *opaque, Error **errp) | |
bbf5c878 MR |
309 | { |
310 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
c75304a1 | 311 | Error *err = NULL; |
bbf5c878 MR |
312 | int fdt_offset_next, fdt_offset, fdt_depth; |
313 | void *fdt; | |
314 | ||
315 | if (!drc->fdt) { | |
a543a554 | 316 | visit_type_null(v, NULL, errp); |
bbf5c878 MR |
317 | return; |
318 | } | |
319 | ||
320 | fdt = drc->fdt; | |
321 | fdt_offset = drc->fdt_start_offset; | |
322 | fdt_depth = 0; | |
323 | ||
324 | do { | |
325 | const char *name = NULL; | |
326 | const struct fdt_property *prop = NULL; | |
327 | int prop_len = 0, name_len = 0; | |
328 | uint32_t tag; | |
329 | ||
330 | tag = fdt_next_tag(fdt, fdt_offset, &fdt_offset_next); | |
331 | switch (tag) { | |
332 | case FDT_BEGIN_NODE: | |
333 | fdt_depth++; | |
334 | name = fdt_get_name(fdt, fdt_offset, &name_len); | |
337283df | 335 | visit_start_struct(v, name, NULL, 0, &err); |
c75304a1 MA |
336 | if (err) { |
337 | error_propagate(errp, err); | |
338 | return; | |
339 | } | |
bbf5c878 MR |
340 | break; |
341 | case FDT_END_NODE: | |
342 | /* shouldn't ever see an FDT_END_NODE before FDT_BEGIN_NODE */ | |
343 | g_assert(fdt_depth > 0); | |
15c2f669 | 344 | visit_check_struct(v, &err); |
1158bb2a | 345 | visit_end_struct(v, NULL); |
c75304a1 MA |
346 | if (err) { |
347 | error_propagate(errp, err); | |
348 | return; | |
349 | } | |
bbf5c878 MR |
350 | fdt_depth--; |
351 | break; | |
352 | case FDT_PROP: { | |
353 | int i; | |
354 | prop = fdt_get_property_by_offset(fdt, fdt_offset, &prop_len); | |
355 | name = fdt_string(fdt, fdt32_to_cpu(prop->nameoff)); | |
d9f62dde | 356 | visit_start_list(v, name, NULL, 0, &err); |
c75304a1 MA |
357 | if (err) { |
358 | error_propagate(errp, err); | |
359 | return; | |
360 | } | |
bbf5c878 | 361 | for (i = 0; i < prop_len; i++) { |
51e72bc1 | 362 | visit_type_uint8(v, NULL, (uint8_t *)&prop->data[i], &err); |
c75304a1 MA |
363 | if (err) { |
364 | error_propagate(errp, err); | |
365 | return; | |
366 | } | |
367 | } | |
a4a1c70d | 368 | visit_check_list(v, &err); |
1158bb2a | 369 | visit_end_list(v, NULL); |
a4a1c70d MA |
370 | if (err) { |
371 | error_propagate(errp, err); | |
372 | return; | |
373 | } | |
bbf5c878 MR |
374 | break; |
375 | } | |
376 | default: | |
377 | error_setg(&error_abort, "device FDT in unexpected state: %d", tag); | |
378 | } | |
379 | fdt_offset = fdt_offset_next; | |
380 | } while (fdt_depth != 0); | |
381 | } | |
382 | ||
0be4e886 | 383 | void spapr_drc_attach(sPAPRDRConnector *drc, DeviceState *d, void *fdt, |
5c1da812 | 384 | int fdt_start_offset, Error **errp) |
bbf5c878 | 385 | { |
0b55aa91 | 386 | trace_spapr_drc_attach(spapr_drc_index(drc)); |
bbf5c878 | 387 | |
9d4c0f4f | 388 | if (drc->dev) { |
bbf5c878 MR |
389 | error_setg(errp, "an attached device is still awaiting release"); |
390 | return; | |
391 | } | |
9d4c0f4f DG |
392 | g_assert((drc->state == SPAPR_DRC_STATE_LOGICAL_UNUSABLE) |
393 | || (drc->state == SPAPR_DRC_STATE_PHYSICAL_POWERON)); | |
5c1da812 | 394 | g_assert(fdt); |
bbf5c878 | 395 | |
bbf5c878 MR |
396 | drc->dev = d; |
397 | drc->fdt = fdt; | |
398 | drc->fdt_start_offset = fdt_start_offset; | |
bbf5c878 MR |
399 | |
400 | object_property_add_link(OBJECT(drc), "device", | |
401 | object_get_typename(OBJECT(drc->dev)), | |
402 | (Object **)(&drc->dev), | |
403 | NULL, 0, NULL); | |
404 | } | |
405 | ||
9c914e53 | 406 | static void spapr_drc_release(sPAPRDRConnector *drc) |
bbf5c878 | 407 | { |
6b762f29 DG |
408 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
409 | ||
410 | drck->release(drc->dev); | |
bbf5c878 | 411 | |
f1c52354 | 412 | drc->unplug_requested = false; |
bbf5c878 MR |
413 | g_free(drc->fdt); |
414 | drc->fdt = NULL; | |
415 | drc->fdt_start_offset = 0; | |
ba50822f | 416 | object_property_del(OBJECT(drc), "device", &error_abort); |
bbf5c878 | 417 | drc->dev = NULL; |
bbf5c878 MR |
418 | } |
419 | ||
a8dc47fd | 420 | void spapr_drc_detach(sPAPRDRConnector *drc) |
9c914e53 | 421 | { |
9d4c0f4f DG |
422 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
423 | ||
9c914e53 DG |
424 | trace_spapr_drc_detach(spapr_drc_index(drc)); |
425 | ||
9d4c0f4f | 426 | g_assert(drc->dev); |
a8dc47fd | 427 | |
9d4c0f4f | 428 | drc->unplug_requested = true; |
9c914e53 | 429 | |
9d4c0f4f DG |
430 | if (drc->state != drck->empty_state) { |
431 | trace_spapr_drc_awaiting_quiesce(spapr_drc_index(drc)); | |
9c914e53 DG |
432 | return; |
433 | } | |
434 | ||
9c914e53 DG |
435 | spapr_drc_release(drc); |
436 | } | |
437 | ||
94fd9cba | 438 | void spapr_drc_reset(sPAPRDRConnector *drc) |
bbf5c878 | 439 | { |
9d4c0f4f DG |
440 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
441 | ||
0b55aa91 | 442 | trace_spapr_drc_reset(spapr_drc_index(drc)); |
b8fdd530 DG |
443 | |
444 | g_free(drc->ccs); | |
445 | drc->ccs = NULL; | |
446 | ||
bbf5c878 | 447 | /* immediately upon reset we can safely assume DRCs whose devices |
4f9242fc | 448 | * are pending removal can be safely removed. |
bbf5c878 | 449 | */ |
f1c52354 | 450 | if (drc->unplug_requested) { |
4f9242fc DG |
451 | spapr_drc_release(drc); |
452 | } | |
453 | ||
4f9242fc | 454 | if (drc->dev) { |
9d4c0f4f DG |
455 | /* A device present at reset is ready to go, same as coldplugged */ |
456 | drc->state = drck->ready_state; | |
4f9242fc | 457 | } else { |
9d4c0f4f | 458 | drc->state = drck->empty_state; |
bbf5c878 MR |
459 | } |
460 | } | |
461 | ||
94fd9cba LV |
462 | static void drc_reset(void *opaque) |
463 | { | |
464 | spapr_drc_reset(SPAPR_DR_CONNECTOR(opaque)); | |
465 | } | |
466 | ||
a50919dd DHB |
467 | static bool spapr_drc_needed(void *opaque) |
468 | { | |
469 | sPAPRDRConnector *drc = (sPAPRDRConnector *)opaque; | |
470 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
f224d35b | 471 | sPAPRDREntitySense value = drck->dr_entity_sense(drc); |
a50919dd DHB |
472 | |
473 | /* If no dev is plugged in there is no need to migrate the DRC state */ | |
474 | if (value != SPAPR_DR_ENTITY_SENSE_PRESENT) { | |
475 | return false; | |
476 | } | |
477 | ||
478 | /* | |
9d4c0f4f DG |
479 | * We need to migrate the state if it's not equal to the expected |
480 | * long-term state, which is the same as the coldplugged initial | |
481 | * state */ | |
482 | return (drc->state != drck->ready_state); | |
a50919dd DHB |
483 | } |
484 | ||
485 | static const VMStateDescription vmstate_spapr_drc = { | |
486 | .name = "spapr_drc", | |
487 | .version_id = 1, | |
488 | .minimum_version_id = 1, | |
489 | .needed = spapr_drc_needed, | |
490 | .fields = (VMStateField []) { | |
9d4c0f4f | 491 | VMSTATE_UINT32(state, sPAPRDRConnector), |
cd74d27e | 492 | VMSTATE_UINT32(dr_indicator, sPAPRDRConnector), |
a50919dd DHB |
493 | VMSTATE_END_OF_LIST() |
494 | } | |
495 | }; | |
496 | ||
bbf5c878 MR |
497 | static void realize(DeviceState *d, Error **errp) |
498 | { | |
499 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d); | |
bbf5c878 MR |
500 | Object *root_container; |
501 | char link_name[256]; | |
502 | gchar *child_name; | |
503 | Error *err = NULL; | |
504 | ||
0b55aa91 | 505 | trace_spapr_drc_realize(spapr_drc_index(drc)); |
bbf5c878 MR |
506 | /* NOTE: we do this as part of realize/unrealize due to the fact |
507 | * that the guest will communicate with the DRC via RTAS calls | |
508 | * referencing the global DRC index. By unlinking the DRC | |
509 | * from DRC_CONTAINER_PATH/<drc_index> we effectively make it | |
510 | * inaccessible by the guest, since lookups rely on this path | |
511 | * existing in the composition tree | |
512 | */ | |
513 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); | |
0b55aa91 | 514 | snprintf(link_name, sizeof(link_name), "%x", spapr_drc_index(drc)); |
bbf5c878 | 515 | child_name = object_get_canonical_path_component(OBJECT(drc)); |
0b55aa91 | 516 | trace_spapr_drc_realize_child(spapr_drc_index(drc), child_name); |
bbf5c878 MR |
517 | object_property_add_alias(root_container, link_name, |
518 | drc->owner, child_name, &err); | |
519 | if (err) { | |
4fffeb5e | 520 | error_report_err(err); |
bbf5c878 MR |
521 | object_unref(OBJECT(drc)); |
522 | } | |
586d2142 | 523 | g_free(child_name); |
0b55aa91 | 524 | vmstate_register(DEVICE(drc), spapr_drc_index(drc), &vmstate_spapr_drc, |
a50919dd | 525 | drc); |
6caf3ac6 | 526 | qemu_register_reset(drc_reset, drc); |
0b55aa91 | 527 | trace_spapr_drc_realize_complete(spapr_drc_index(drc)); |
bbf5c878 MR |
528 | } |
529 | ||
530 | static void unrealize(DeviceState *d, Error **errp) | |
531 | { | |
532 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d); | |
bbf5c878 MR |
533 | Object *root_container; |
534 | char name[256]; | |
535 | Error *err = NULL; | |
536 | ||
0b55aa91 | 537 | trace_spapr_drc_unrealize(spapr_drc_index(drc)); |
bbf5c878 | 538 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); |
0b55aa91 | 539 | snprintf(name, sizeof(name), "%x", spapr_drc_index(drc)); |
bbf5c878 MR |
540 | object_property_del(root_container, name, &err); |
541 | if (err) { | |
4fffeb5e | 542 | error_report_err(err); |
bbf5c878 MR |
543 | object_unref(OBJECT(drc)); |
544 | } | |
545 | } | |
546 | ||
2d335818 | 547 | sPAPRDRConnector *spapr_dr_connector_new(Object *owner, const char *type, |
bbf5c878 MR |
548 | uint32_t id) |
549 | { | |
2d335818 | 550 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(object_new(type)); |
94649d42 | 551 | char *prop_name; |
bbf5c878 | 552 | |
bbf5c878 MR |
553 | drc->id = id; |
554 | drc->owner = owner; | |
0b55aa91 DG |
555 | prop_name = g_strdup_printf("dr-connector[%"PRIu32"]", |
556 | spapr_drc_index(drc)); | |
94649d42 | 557 | object_property_add_child(owner, prop_name, OBJECT(drc), NULL); |
bbf5c878 | 558 | object_property_set_bool(OBJECT(drc), true, "realized", NULL); |
94649d42 | 559 | g_free(prop_name); |
bbf5c878 | 560 | |
bbf5c878 MR |
561 | return drc; |
562 | } | |
563 | ||
564 | static void spapr_dr_connector_instance_init(Object *obj) | |
565 | { | |
566 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
9d4c0f4f | 567 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
bbf5c878 | 568 | |
bbf5c878 MR |
569 | object_property_add_uint32_ptr(obj, "id", &drc->id, NULL); |
570 | object_property_add(obj, "index", "uint32", prop_get_index, | |
571 | NULL, NULL, NULL, NULL); | |
bbf5c878 MR |
572 | object_property_add(obj, "fdt", "struct", prop_get_fdt, |
573 | NULL, NULL, NULL, NULL); | |
9d4c0f4f | 574 | drc->state = drck->empty_state; |
bbf5c878 MR |
575 | } |
576 | ||
577 | static void spapr_dr_connector_class_init(ObjectClass *k, void *data) | |
578 | { | |
579 | DeviceClass *dk = DEVICE_CLASS(k); | |
bbf5c878 | 580 | |
bbf5c878 MR |
581 | dk->realize = realize; |
582 | dk->unrealize = unrealize; | |
c401ae8c MA |
583 | /* |
584 | * Reason: it crashes FIXME find and document the real reason | |
585 | */ | |
e90f2a8c | 586 | dk->user_creatable = false; |
bbf5c878 MR |
587 | } |
588 | ||
f224d35b DG |
589 | static void spapr_drc_physical_class_init(ObjectClass *k, void *data) |
590 | { | |
591 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
592 | ||
593 | drck->dr_entity_sense = physical_entity_sense; | |
0dfabd39 DG |
594 | drck->isolate = drc_isolate_physical; |
595 | drck->unisolate = drc_unisolate_physical; | |
9d4c0f4f DG |
596 | drck->ready_state = SPAPR_DRC_STATE_PHYSICAL_CONFIGURED; |
597 | drck->empty_state = SPAPR_DRC_STATE_PHYSICAL_POWERON; | |
f224d35b DG |
598 | } |
599 | ||
600 | static void spapr_drc_logical_class_init(ObjectClass *k, void *data) | |
601 | { | |
602 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
603 | ||
604 | drck->dr_entity_sense = logical_entity_sense; | |
0dfabd39 DG |
605 | drck->isolate = drc_isolate_logical; |
606 | drck->unisolate = drc_unisolate_logical; | |
9d4c0f4f DG |
607 | drck->ready_state = SPAPR_DRC_STATE_LOGICAL_CONFIGURED; |
608 | drck->empty_state = SPAPR_DRC_STATE_LOGICAL_UNUSABLE; | |
f224d35b DG |
609 | } |
610 | ||
2d335818 DG |
611 | static void spapr_drc_cpu_class_init(ObjectClass *k, void *data) |
612 | { | |
613 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
614 | ||
615 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_CPU; | |
1693ea16 | 616 | drck->typename = "CPU"; |
79808336 | 617 | drck->drc_name_prefix = "CPU "; |
6b762f29 | 618 | drck->release = spapr_core_release; |
2d335818 DG |
619 | } |
620 | ||
621 | static void spapr_drc_pci_class_init(ObjectClass *k, void *data) | |
622 | { | |
623 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
624 | ||
625 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_PCI; | |
1693ea16 | 626 | drck->typename = "28"; |
79808336 | 627 | drck->drc_name_prefix = "C"; |
6b762f29 | 628 | drck->release = spapr_phb_remove_pci_device_cb; |
2d335818 DG |
629 | } |
630 | ||
631 | static void spapr_drc_lmb_class_init(ObjectClass *k, void *data) | |
632 | { | |
633 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
634 | ||
635 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_LMB; | |
1693ea16 | 636 | drck->typename = "MEM"; |
79808336 | 637 | drck->drc_name_prefix = "LMB "; |
6b762f29 | 638 | drck->release = spapr_lmb_release; |
2d335818 DG |
639 | } |
640 | ||
bbf5c878 MR |
641 | static const TypeInfo spapr_dr_connector_info = { |
642 | .name = TYPE_SPAPR_DR_CONNECTOR, | |
643 | .parent = TYPE_DEVICE, | |
644 | .instance_size = sizeof(sPAPRDRConnector), | |
645 | .instance_init = spapr_dr_connector_instance_init, | |
646 | .class_size = sizeof(sPAPRDRConnectorClass), | |
647 | .class_init = spapr_dr_connector_class_init, | |
2d335818 DG |
648 | .abstract = true, |
649 | }; | |
650 | ||
651 | static const TypeInfo spapr_drc_physical_info = { | |
652 | .name = TYPE_SPAPR_DRC_PHYSICAL, | |
653 | .parent = TYPE_SPAPR_DR_CONNECTOR, | |
f224d35b | 654 | .class_init = spapr_drc_physical_class_init, |
2d335818 DG |
655 | .abstract = true, |
656 | }; | |
657 | ||
658 | static const TypeInfo spapr_drc_logical_info = { | |
659 | .name = TYPE_SPAPR_DRC_LOGICAL, | |
660 | .parent = TYPE_SPAPR_DR_CONNECTOR, | |
f224d35b | 661 | .class_init = spapr_drc_logical_class_init, |
2d335818 DG |
662 | .abstract = true, |
663 | }; | |
664 | ||
665 | static const TypeInfo spapr_drc_cpu_info = { | |
666 | .name = TYPE_SPAPR_DRC_CPU, | |
667 | .parent = TYPE_SPAPR_DRC_LOGICAL, | |
2d335818 DG |
668 | .class_init = spapr_drc_cpu_class_init, |
669 | }; | |
670 | ||
671 | static const TypeInfo spapr_drc_pci_info = { | |
672 | .name = TYPE_SPAPR_DRC_PCI, | |
673 | .parent = TYPE_SPAPR_DRC_PHYSICAL, | |
2d335818 DG |
674 | .class_init = spapr_drc_pci_class_init, |
675 | }; | |
676 | ||
677 | static const TypeInfo spapr_drc_lmb_info = { | |
678 | .name = TYPE_SPAPR_DRC_LMB, | |
679 | .parent = TYPE_SPAPR_DRC_LOGICAL, | |
2d335818 | 680 | .class_init = spapr_drc_lmb_class_init, |
bbf5c878 MR |
681 | }; |
682 | ||
bbf5c878 MR |
683 | /* helper functions for external users */ |
684 | ||
fbf55397 | 685 | sPAPRDRConnector *spapr_drc_by_index(uint32_t index) |
bbf5c878 MR |
686 | { |
687 | Object *obj; | |
688 | char name[256]; | |
689 | ||
690 | snprintf(name, sizeof(name), "%s/%x", DRC_CONTAINER_PATH, index); | |
691 | obj = object_resolve_path(name, NULL); | |
692 | ||
693 | return !obj ? NULL : SPAPR_DR_CONNECTOR(obj); | |
694 | } | |
695 | ||
fbf55397 | 696 | sPAPRDRConnector *spapr_drc_by_id(const char *type, uint32_t id) |
bbf5c878 | 697 | { |
fbf55397 DG |
698 | sPAPRDRConnectorClass *drck |
699 | = SPAPR_DR_CONNECTOR_CLASS(object_class_by_name(type)); | |
700 | ||
701 | return spapr_drc_by_index(drck->typeshift << DRC_INDEX_TYPE_SHIFT | |
702 | | (id & DRC_INDEX_ID_MASK)); | |
bbf5c878 | 703 | } |
e4b798bb | 704 | |
e4b798bb MR |
705 | /** |
706 | * spapr_drc_populate_dt | |
707 | * | |
708 | * @fdt: libfdt device tree | |
709 | * @path: path in the DT to generate properties | |
710 | * @owner: parent Object/DeviceState for which to generate DRC | |
711 | * descriptions for | |
712 | * @drc_type_mask: mask of sPAPRDRConnectorType values corresponding | |
713 | * to the types of DRCs to generate entries for | |
714 | * | |
715 | * generate OF properties to describe DRC topology/indices to guests | |
716 | * | |
717 | * as documented in PAPR+ v2.1, 13.5.2 | |
718 | */ | |
719 | int spapr_drc_populate_dt(void *fdt, int fdt_offset, Object *owner, | |
720 | uint32_t drc_type_mask) | |
721 | { | |
722 | Object *root_container; | |
723 | ObjectProperty *prop; | |
7746abd8 | 724 | ObjectPropertyIterator iter; |
e4b798bb MR |
725 | uint32_t drc_count = 0; |
726 | GArray *drc_indexes, *drc_power_domains; | |
727 | GString *drc_names, *drc_types; | |
728 | int ret; | |
729 | ||
730 | /* the first entry of each properties is a 32-bit integer encoding | |
731 | * the number of elements in the array. we won't know this until | |
732 | * we complete the iteration through all the matching DRCs, but | |
733 | * reserve the space now and set the offsets accordingly so we | |
734 | * can fill them in later. | |
735 | */ | |
736 | drc_indexes = g_array_new(false, true, sizeof(uint32_t)); | |
737 | drc_indexes = g_array_set_size(drc_indexes, 1); | |
738 | drc_power_domains = g_array_new(false, true, sizeof(uint32_t)); | |
739 | drc_power_domains = g_array_set_size(drc_power_domains, 1); | |
740 | drc_names = g_string_set_size(g_string_new(NULL), sizeof(uint32_t)); | |
741 | drc_types = g_string_set_size(g_string_new(NULL), sizeof(uint32_t)); | |
742 | ||
743 | /* aliases for all DRConnector objects will be rooted in QOM | |
744 | * composition tree at DRC_CONTAINER_PATH | |
745 | */ | |
746 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); | |
747 | ||
7746abd8 DB |
748 | object_property_iter_init(&iter, root_container); |
749 | while ((prop = object_property_iter_next(&iter))) { | |
e4b798bb MR |
750 | Object *obj; |
751 | sPAPRDRConnector *drc; | |
752 | sPAPRDRConnectorClass *drck; | |
753 | uint32_t drc_index, drc_power_domain; | |
754 | ||
755 | if (!strstart(prop->type, "link<", NULL)) { | |
756 | continue; | |
757 | } | |
758 | ||
759 | obj = object_property_get_link(root_container, prop->name, NULL); | |
760 | drc = SPAPR_DR_CONNECTOR(obj); | |
761 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
762 | ||
763 | if (owner && (drc->owner != owner)) { | |
764 | continue; | |
765 | } | |
766 | ||
2d335818 | 767 | if ((spapr_drc_type(drc) & drc_type_mask) == 0) { |
e4b798bb MR |
768 | continue; |
769 | } | |
770 | ||
771 | drc_count++; | |
772 | ||
773 | /* ibm,drc-indexes */ | |
0b55aa91 | 774 | drc_index = cpu_to_be32(spapr_drc_index(drc)); |
e4b798bb MR |
775 | g_array_append_val(drc_indexes, drc_index); |
776 | ||
777 | /* ibm,drc-power-domains */ | |
778 | drc_power_domain = cpu_to_be32(-1); | |
779 | g_array_append_val(drc_power_domains, drc_power_domain); | |
780 | ||
781 | /* ibm,drc-names */ | |
79808336 | 782 | drc_names = g_string_append(drc_names, spapr_drc_name(drc)); |
e4b798bb MR |
783 | drc_names = g_string_insert_len(drc_names, -1, "\0", 1); |
784 | ||
785 | /* ibm,drc-types */ | |
1693ea16 | 786 | drc_types = g_string_append(drc_types, drck->typename); |
e4b798bb MR |
787 | drc_types = g_string_insert_len(drc_types, -1, "\0", 1); |
788 | } | |
789 | ||
790 | /* now write the drc count into the space we reserved at the | |
791 | * beginning of the arrays previously | |
792 | */ | |
793 | *(uint32_t *)drc_indexes->data = cpu_to_be32(drc_count); | |
794 | *(uint32_t *)drc_power_domains->data = cpu_to_be32(drc_count); | |
795 | *(uint32_t *)drc_names->str = cpu_to_be32(drc_count); | |
796 | *(uint32_t *)drc_types->str = cpu_to_be32(drc_count); | |
797 | ||
798 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-indexes", | |
799 | drc_indexes->data, | |
800 | drc_indexes->len * sizeof(uint32_t)); | |
801 | if (ret) { | |
ce9863b7 | 802 | error_report("Couldn't create ibm,drc-indexes property"); |
e4b798bb MR |
803 | goto out; |
804 | } | |
805 | ||
806 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-power-domains", | |
807 | drc_power_domains->data, | |
808 | drc_power_domains->len * sizeof(uint32_t)); | |
809 | if (ret) { | |
ce9863b7 | 810 | error_report("Couldn't finalize ibm,drc-power-domains property"); |
e4b798bb MR |
811 | goto out; |
812 | } | |
813 | ||
814 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-names", | |
815 | drc_names->str, drc_names->len); | |
816 | if (ret) { | |
ce9863b7 | 817 | error_report("Couldn't finalize ibm,drc-names property"); |
e4b798bb MR |
818 | goto out; |
819 | } | |
820 | ||
821 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-types", | |
822 | drc_types->str, drc_types->len); | |
823 | if (ret) { | |
ce9863b7 | 824 | error_report("Couldn't finalize ibm,drc-types property"); |
e4b798bb MR |
825 | goto out; |
826 | } | |
827 | ||
828 | out: | |
829 | g_array_free(drc_indexes, true); | |
830 | g_array_free(drc_power_domains, true); | |
831 | g_string_free(drc_names, true); | |
832 | g_string_free(drc_types, true); | |
833 | ||
834 | return ret; | |
835 | } | |
b89b3d39 DG |
836 | |
837 | /* | |
838 | * RTAS calls | |
839 | */ | |
840 | ||
7b7258f8 | 841 | static uint32_t rtas_set_isolation_state(uint32_t idx, uint32_t state) |
b89b3d39 | 842 | { |
7b7258f8 DG |
843 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); |
844 | sPAPRDRConnectorClass *drck; | |
845 | ||
846 | if (!drc) { | |
0dfabd39 | 847 | return RTAS_OUT_NO_SUCH_INDICATOR; |
b89b3d39 DG |
848 | } |
849 | ||
0dfabd39 DG |
850 | trace_spapr_drc_set_isolation_state(spapr_drc_index(drc), state); |
851 | ||
7b7258f8 | 852 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
0dfabd39 DG |
853 | |
854 | switch (state) { | |
855 | case SPAPR_DR_ISOLATION_STATE_ISOLATED: | |
856 | return drck->isolate(drc); | |
857 | ||
858 | case SPAPR_DR_ISOLATION_STATE_UNISOLATED: | |
859 | return drck->unisolate(drc); | |
860 | ||
861 | default: | |
862 | return RTAS_OUT_PARAM_ERROR; | |
863 | } | |
b89b3d39 DG |
864 | } |
865 | ||
7b7258f8 | 866 | static uint32_t rtas_set_allocation_state(uint32_t idx, uint32_t state) |
b89b3d39 | 867 | { |
7b7258f8 | 868 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); |
b89b3d39 | 869 | |
61736732 DG |
870 | if (!drc || !object_dynamic_cast(OBJECT(drc), TYPE_SPAPR_DRC_LOGICAL)) { |
871 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
b89b3d39 DG |
872 | } |
873 | ||
61736732 DG |
874 | trace_spapr_drc_set_allocation_state(spapr_drc_index(drc), state); |
875 | ||
876 | switch (state) { | |
877 | case SPAPR_DR_ALLOCATION_STATE_USABLE: | |
878 | return drc_set_usable(drc); | |
879 | ||
880 | case SPAPR_DR_ALLOCATION_STATE_UNUSABLE: | |
881 | return drc_set_unusable(drc); | |
882 | ||
883 | default: | |
884 | return RTAS_OUT_PARAM_ERROR; | |
885 | } | |
7b7258f8 | 886 | } |
b89b3d39 | 887 | |
cd74d27e | 888 | static uint32_t rtas_set_dr_indicator(uint32_t idx, uint32_t state) |
7b7258f8 DG |
889 | { |
890 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); | |
b89b3d39 | 891 | |
b89b3d39 | 892 | if (!drc) { |
7b7258f8 DG |
893 | return RTAS_OUT_PARAM_ERROR; |
894 | } | |
895 | ||
cd74d27e DG |
896 | trace_spapr_drc_set_dr_indicator(idx, state); |
897 | drc->dr_indicator = state; | |
898 | return RTAS_OUT_SUCCESS; | |
7b7258f8 DG |
899 | } |
900 | ||
901 | static void rtas_set_indicator(PowerPCCPU *cpu, sPAPRMachineState *spapr, | |
902 | uint32_t token, | |
903 | uint32_t nargs, target_ulong args, | |
904 | uint32_t nret, target_ulong rets) | |
905 | { | |
906 | uint32_t type, idx, state; | |
907 | uint32_t ret = RTAS_OUT_SUCCESS; | |
908 | ||
909 | if (nargs != 3 || nret != 1) { | |
b89b3d39 DG |
910 | ret = RTAS_OUT_PARAM_ERROR; |
911 | goto out; | |
912 | } | |
b89b3d39 | 913 | |
7b7258f8 DG |
914 | type = rtas_ld(args, 0); |
915 | idx = rtas_ld(args, 1); | |
916 | state = rtas_ld(args, 2); | |
917 | ||
918 | switch (type) { | |
b89b3d39 | 919 | case RTAS_SENSOR_TYPE_ISOLATION_STATE: |
7b7258f8 | 920 | ret = rtas_set_isolation_state(idx, state); |
b89b3d39 DG |
921 | break; |
922 | case RTAS_SENSOR_TYPE_DR: | |
cd74d27e | 923 | ret = rtas_set_dr_indicator(idx, state); |
b89b3d39 DG |
924 | break; |
925 | case RTAS_SENSOR_TYPE_ALLOCATION_STATE: | |
7b7258f8 | 926 | ret = rtas_set_allocation_state(idx, state); |
b89b3d39 DG |
927 | break; |
928 | default: | |
7b7258f8 | 929 | ret = RTAS_OUT_NOT_SUPPORTED; |
b89b3d39 DG |
930 | } |
931 | ||
932 | out: | |
933 | rtas_st(rets, 0, ret); | |
b89b3d39 DG |
934 | } |
935 | ||
936 | static void rtas_get_sensor_state(PowerPCCPU *cpu, sPAPRMachineState *spapr, | |
937 | uint32_t token, uint32_t nargs, | |
938 | target_ulong args, uint32_t nret, | |
939 | target_ulong rets) | |
940 | { | |
941 | uint32_t sensor_type; | |
942 | uint32_t sensor_index; | |
943 | uint32_t sensor_state = 0; | |
944 | sPAPRDRConnector *drc; | |
945 | sPAPRDRConnectorClass *drck; | |
946 | uint32_t ret = RTAS_OUT_SUCCESS; | |
947 | ||
948 | if (nargs != 2 || nret != 2) { | |
949 | ret = RTAS_OUT_PARAM_ERROR; | |
950 | goto out; | |
951 | } | |
952 | ||
953 | sensor_type = rtas_ld(args, 0); | |
954 | sensor_index = rtas_ld(args, 1); | |
955 | ||
956 | if (sensor_type != RTAS_SENSOR_TYPE_ENTITY_SENSE) { | |
957 | /* currently only DR-related sensors are implemented */ | |
958 | trace_spapr_rtas_get_sensor_state_not_supported(sensor_index, | |
959 | sensor_type); | |
960 | ret = RTAS_OUT_NOT_SUPPORTED; | |
961 | goto out; | |
962 | } | |
963 | ||
fbf55397 | 964 | drc = spapr_drc_by_index(sensor_index); |
b89b3d39 DG |
965 | if (!drc) { |
966 | trace_spapr_rtas_get_sensor_state_invalid(sensor_index); | |
967 | ret = RTAS_OUT_PARAM_ERROR; | |
968 | goto out; | |
969 | } | |
970 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
f224d35b | 971 | sensor_state = drck->dr_entity_sense(drc); |
b89b3d39 DG |
972 | |
973 | out: | |
974 | rtas_st(rets, 0, ret); | |
975 | rtas_st(rets, 1, sensor_state); | |
976 | } | |
977 | ||
978 | /* configure-connector work area offsets, int32_t units for field | |
979 | * indexes, bytes for field offset/len values. | |
980 | * | |
981 | * as documented by PAPR+ v2.7, 13.5.3.5 | |
982 | */ | |
983 | #define CC_IDX_NODE_NAME_OFFSET 2 | |
984 | #define CC_IDX_PROP_NAME_OFFSET 2 | |
985 | #define CC_IDX_PROP_LEN 3 | |
986 | #define CC_IDX_PROP_DATA_OFFSET 4 | |
987 | #define CC_VAL_DATA_OFFSET ((CC_IDX_PROP_DATA_OFFSET + 1) * 4) | |
988 | #define CC_WA_LEN 4096 | |
989 | ||
990 | static void configure_connector_st(target_ulong addr, target_ulong offset, | |
991 | const void *buf, size_t len) | |
992 | { | |
993 | cpu_physical_memory_write(ppc64_phys_to_real(addr + offset), | |
994 | buf, MIN(len, CC_WA_LEN - offset)); | |
995 | } | |
996 | ||
b89b3d39 DG |
997 | static void rtas_ibm_configure_connector(PowerPCCPU *cpu, |
998 | sPAPRMachineState *spapr, | |
999 | uint32_t token, uint32_t nargs, | |
1000 | target_ulong args, uint32_t nret, | |
1001 | target_ulong rets) | |
1002 | { | |
1003 | uint64_t wa_addr; | |
1004 | uint64_t wa_offset; | |
1005 | uint32_t drc_index; | |
1006 | sPAPRDRConnector *drc; | |
9d4c0f4f | 1007 | sPAPRDRConnectorClass *drck; |
b89b3d39 DG |
1008 | sPAPRConfigureConnectorState *ccs; |
1009 | sPAPRDRCCResponse resp = SPAPR_DR_CC_RESPONSE_CONTINUE; | |
1010 | int rc; | |
b89b3d39 DG |
1011 | |
1012 | if (nargs != 2 || nret != 1) { | |
1013 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); | |
1014 | return; | |
1015 | } | |
1016 | ||
1017 | wa_addr = ((uint64_t)rtas_ld(args, 1) << 32) | rtas_ld(args, 0); | |
1018 | ||
1019 | drc_index = rtas_ld(wa_addr, 0); | |
fbf55397 | 1020 | drc = spapr_drc_by_index(drc_index); |
b89b3d39 DG |
1021 | if (!drc) { |
1022 | trace_spapr_rtas_ibm_configure_connector_invalid(drc_index); | |
1023 | rc = RTAS_OUT_PARAM_ERROR; | |
1024 | goto out; | |
1025 | } | |
1026 | ||
9d4c0f4f DG |
1027 | if ((drc->state != SPAPR_DRC_STATE_LOGICAL_UNISOLATE) |
1028 | && (drc->state != SPAPR_DRC_STATE_PHYSICAL_UNISOLATE)) { | |
1029 | /* Need to unisolate the device before configuring */ | |
b89b3d39 DG |
1030 | rc = SPAPR_DR_CC_RESPONSE_NOT_CONFIGURABLE; |
1031 | goto out; | |
1032 | } | |
1033 | ||
9d4c0f4f DG |
1034 | g_assert(drc->fdt); |
1035 | ||
1036 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
1037 | ||
b8fdd530 | 1038 | ccs = drc->ccs; |
b89b3d39 DG |
1039 | if (!ccs) { |
1040 | ccs = g_new0(sPAPRConfigureConnectorState, 1); | |
88af6ea5 | 1041 | ccs->fdt_offset = drc->fdt_start_offset; |
b8fdd530 | 1042 | drc->ccs = ccs; |
b89b3d39 DG |
1043 | } |
1044 | ||
1045 | do { | |
1046 | uint32_t tag; | |
1047 | const char *name; | |
1048 | const struct fdt_property *prop; | |
1049 | int fdt_offset_next, prop_len; | |
1050 | ||
88af6ea5 | 1051 | tag = fdt_next_tag(drc->fdt, ccs->fdt_offset, &fdt_offset_next); |
b89b3d39 DG |
1052 | |
1053 | switch (tag) { | |
1054 | case FDT_BEGIN_NODE: | |
1055 | ccs->fdt_depth++; | |
88af6ea5 | 1056 | name = fdt_get_name(drc->fdt, ccs->fdt_offset, NULL); |
b89b3d39 DG |
1057 | |
1058 | /* provide the name of the next OF node */ | |
1059 | wa_offset = CC_VAL_DATA_OFFSET; | |
1060 | rtas_st(wa_addr, CC_IDX_NODE_NAME_OFFSET, wa_offset); | |
1061 | configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1); | |
1062 | resp = SPAPR_DR_CC_RESPONSE_NEXT_CHILD; | |
1063 | break; | |
1064 | case FDT_END_NODE: | |
1065 | ccs->fdt_depth--; | |
1066 | if (ccs->fdt_depth == 0) { | |
0b55aa91 | 1067 | uint32_t drc_index = spapr_drc_index(drc); |
9d4c0f4f DG |
1068 | |
1069 | /* done sending the device tree, move to configured state */ | |
0b55aa91 | 1070 | trace_spapr_drc_set_configured(drc_index); |
9d4c0f4f | 1071 | drc->state = drck->ready_state; |
b8fdd530 DG |
1072 | g_free(ccs); |
1073 | drc->ccs = NULL; | |
b89b3d39 DG |
1074 | ccs = NULL; |
1075 | resp = SPAPR_DR_CC_RESPONSE_SUCCESS; | |
1076 | } else { | |
1077 | resp = SPAPR_DR_CC_RESPONSE_PREV_PARENT; | |
1078 | } | |
1079 | break; | |
1080 | case FDT_PROP: | |
88af6ea5 | 1081 | prop = fdt_get_property_by_offset(drc->fdt, ccs->fdt_offset, |
b89b3d39 | 1082 | &prop_len); |
88af6ea5 | 1083 | name = fdt_string(drc->fdt, fdt32_to_cpu(prop->nameoff)); |
b89b3d39 DG |
1084 | |
1085 | /* provide the name of the next OF property */ | |
1086 | wa_offset = CC_VAL_DATA_OFFSET; | |
1087 | rtas_st(wa_addr, CC_IDX_PROP_NAME_OFFSET, wa_offset); | |
1088 | configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1); | |
1089 | ||
1090 | /* provide the length and value of the OF property. data gets | |
1091 | * placed immediately after NULL terminator of the OF property's | |
1092 | * name string | |
1093 | */ | |
1094 | wa_offset += strlen(name) + 1, | |
1095 | rtas_st(wa_addr, CC_IDX_PROP_LEN, prop_len); | |
1096 | rtas_st(wa_addr, CC_IDX_PROP_DATA_OFFSET, wa_offset); | |
1097 | configure_connector_st(wa_addr, wa_offset, prop->data, prop_len); | |
1098 | resp = SPAPR_DR_CC_RESPONSE_NEXT_PROPERTY; | |
1099 | break; | |
1100 | case FDT_END: | |
1101 | resp = SPAPR_DR_CC_RESPONSE_ERROR; | |
1102 | default: | |
1103 | /* keep seeking for an actionable tag */ | |
1104 | break; | |
1105 | } | |
1106 | if (ccs) { | |
1107 | ccs->fdt_offset = fdt_offset_next; | |
1108 | } | |
1109 | } while (resp == SPAPR_DR_CC_RESPONSE_CONTINUE); | |
1110 | ||
1111 | rc = resp; | |
1112 | out: | |
1113 | rtas_st(rets, 0, rc); | |
1114 | } | |
1115 | ||
1116 | static void spapr_drc_register_types(void) | |
1117 | { | |
1118 | type_register_static(&spapr_dr_connector_info); | |
2d335818 DG |
1119 | type_register_static(&spapr_drc_physical_info); |
1120 | type_register_static(&spapr_drc_logical_info); | |
1121 | type_register_static(&spapr_drc_cpu_info); | |
1122 | type_register_static(&spapr_drc_pci_info); | |
1123 | type_register_static(&spapr_drc_lmb_info); | |
b89b3d39 DG |
1124 | |
1125 | spapr_rtas_register(RTAS_SET_INDICATOR, "set-indicator", | |
1126 | rtas_set_indicator); | |
1127 | spapr_rtas_register(RTAS_GET_SENSOR_STATE, "get-sensor-state", | |
1128 | rtas_get_sensor_state); | |
1129 | spapr_rtas_register(RTAS_IBM_CONFIGURE_CONNECTOR, "ibm,configure-connector", | |
1130 | rtas_ibm_configure_connector); | |
1131 | } | |
1132 | type_init(spapr_drc_register_types) |