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 13 #include "qemu/osdep.h" 14 #include "qapi/error.h" 15 #include "qapi/qmp/qnull.h" 16 #include "cpu.h" 17 #include "qemu/cutils.h" 18 #include "hw/ppc/spapr_drc.h" 19 #include "qom/object.h" 20 #include "migration/vmstate.h" 21 #include "qapi/visitor.h" 22 #include "qemu/error-report.h" 23 #include "hw/ppc/spapr.h" /* for RTAS return codes */ 24 #include "hw/pci-host/spapr.h" /* spapr_phb_remove_pci_device_cb callback */ 25 #include "hw/ppc/spapr_nvdimm.h" 26 #include "sysemu/device_tree.h" 27 #include "sysemu/reset.h" 28 #include "trace.h" 29 30 #define DRC_CONTAINER_PATH "/dr-connector" 31 #define DRC_INDEX_TYPE_SHIFT 28 32 #define DRC_INDEX_ID_MASK ((1ULL << DRC_INDEX_TYPE_SHIFT) - 1) 33 34 SpaprDrcType spapr_drc_type(SpaprDrc *drc) 35 { 36 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); 37 38 return 1 << drck->typeshift; 39 } 40 41 uint32_t spapr_drc_index(SpaprDrc *drc) 42 { 43 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); 44 45 /* no set format for a drc index: it only needs to be globally 46 * unique. this is how we encode the DRC type on bare-metal 47 * however, so might as well do that here 48 */ 49 return (drck->typeshift << DRC_INDEX_TYPE_SHIFT) 50 | (drc->id & DRC_INDEX_ID_MASK); 51 } 52 53 static uint32_t drc_isolate_physical(SpaprDrc *drc) 54 { 55 switch (drc->state) { 56 case SPAPR_DRC_STATE_PHYSICAL_POWERON: 57 return RTAS_OUT_SUCCESS; /* Nothing to do */ 58 case SPAPR_DRC_STATE_PHYSICAL_CONFIGURED: 59 break; /* see below */ 60 case SPAPR_DRC_STATE_PHYSICAL_UNISOLATE: 61 return RTAS_OUT_PARAM_ERROR; /* not allowed */ 62 default: 63 g_assert_not_reached(); 64 } 65 66 drc->state = SPAPR_DRC_STATE_PHYSICAL_POWERON; 67 68 if (drc->unplug_requested) { 69 uint32_t drc_index = spapr_drc_index(drc); 70 trace_spapr_drc_set_isolation_state_finalizing(drc_index); 71 spapr_drc_detach(drc); 72 } 73 74 return RTAS_OUT_SUCCESS; 75 } 76 77 static uint32_t drc_unisolate_physical(SpaprDrc *drc) 78 { 79 switch (drc->state) { 80 case SPAPR_DRC_STATE_PHYSICAL_UNISOLATE: 81 case SPAPR_DRC_STATE_PHYSICAL_CONFIGURED: 82 return RTAS_OUT_SUCCESS; /* Nothing to do */ 83 case SPAPR_DRC_STATE_PHYSICAL_POWERON: 84 break; /* see below */ 85 default: 86 g_assert_not_reached(); 87 } 88 89 /* cannot unisolate a non-existent resource, and, or resources 90 * which are in an 'UNUSABLE' allocation state. (PAPR 2.7, 91 * 13.5.3.5) 92 */ 93 if (!drc->dev) { 94 return RTAS_OUT_NO_SUCH_INDICATOR; 95 } 96 97 drc->state = SPAPR_DRC_STATE_PHYSICAL_UNISOLATE; 98 drc->ccs_offset = drc->fdt_start_offset; 99 drc->ccs_depth = 0; 100 101 return RTAS_OUT_SUCCESS; 102 } 103 104 static uint32_t drc_isolate_logical(SpaprDrc *drc) 105 { 106 switch (drc->state) { 107 case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: 108 case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: 109 return RTAS_OUT_SUCCESS; /* Nothing to do */ 110 case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: 111 break; /* see below */ 112 case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: 113 return RTAS_OUT_PARAM_ERROR; /* not allowed */ 114 default: 115 g_assert_not_reached(); 116 } 117 118 /* 119 * Fail any requests to ISOLATE the LMB DRC if this LMB doesn't 120 * belong to a DIMM device that is marked for removal. 121 * 122 * Currently the guest userspace tool drmgr that drives the memory 123 * hotplug/unplug will just try to remove a set of 'removable' LMBs 124 * in response to a hot unplug request that is based on drc-count. 125 * If the LMB being removed doesn't belong to a DIMM device that is 126 * actually being unplugged, fail the isolation request here. 127 */ 128 if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_LMB 129 && !drc->unplug_requested) { 130 return RTAS_OUT_HW_ERROR; 131 } 132 133 drc->state = SPAPR_DRC_STATE_LOGICAL_AVAILABLE; 134 135 /* if we're awaiting release, but still in an unconfigured state, 136 * it's likely the guest is still in the process of configuring 137 * the device and is transitioning the devices to an ISOLATED 138 * state as a part of that process. so we only complete the 139 * removal when this transition happens for a device in a 140 * configured state, as suggested by the state diagram from PAPR+ 141 * 2.7, 13.4 142 */ 143 if (drc->unplug_requested) { 144 uint32_t drc_index = spapr_drc_index(drc); 145 trace_spapr_drc_set_isolation_state_finalizing(drc_index); 146 spapr_drc_detach(drc); 147 } 148 return RTAS_OUT_SUCCESS; 149 } 150 151 static uint32_t drc_unisolate_logical(SpaprDrc *drc) 152 { 153 switch (drc->state) { 154 case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: 155 case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: 156 return RTAS_OUT_SUCCESS; /* Nothing to do */ 157 case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: 158 break; /* see below */ 159 case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: 160 return RTAS_OUT_NO_SUCH_INDICATOR; /* not allowed */ 161 default: 162 g_assert_not_reached(); 163 } 164 165 /* Move to AVAILABLE state should have ensured device was present */ 166 g_assert(drc->dev); 167 168 drc->state = SPAPR_DRC_STATE_LOGICAL_UNISOLATE; 169 drc->ccs_offset = drc->fdt_start_offset; 170 drc->ccs_depth = 0; 171 172 return RTAS_OUT_SUCCESS; 173 } 174 175 static uint32_t drc_set_usable(SpaprDrc *drc) 176 { 177 switch (drc->state) { 178 case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: 179 case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: 180 case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: 181 return RTAS_OUT_SUCCESS; /* Nothing to do */ 182 case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: 183 break; /* see below */ 184 default: 185 g_assert_not_reached(); 186 } 187 188 /* if there's no resource/device associated with the DRC, there's 189 * no way for us to put it in an allocation state consistent with 190 * being 'USABLE'. PAPR 2.7, 13.5.3.4 documents that this should 191 * result in an RTAS return code of -3 / "no such indicator" 192 */ 193 if (!drc->dev) { 194 return RTAS_OUT_NO_SUCH_INDICATOR; 195 } 196 if (drc->unplug_requested) { 197 /* Don't allow the guest to move a device away from UNUSABLE 198 * state when we want to unplug it */ 199 return RTAS_OUT_NO_SUCH_INDICATOR; 200 } 201 202 drc->state = SPAPR_DRC_STATE_LOGICAL_AVAILABLE; 203 204 return RTAS_OUT_SUCCESS; 205 } 206 207 static uint32_t drc_set_unusable(SpaprDrc *drc) 208 { 209 switch (drc->state) { 210 case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: 211 return RTAS_OUT_SUCCESS; /* Nothing to do */ 212 case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: 213 break; /* see below */ 214 case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: 215 case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: 216 return RTAS_OUT_NO_SUCH_INDICATOR; /* not allowed */ 217 default: 218 g_assert_not_reached(); 219 } 220 221 drc->state = SPAPR_DRC_STATE_LOGICAL_UNUSABLE; 222 if (drc->unplug_requested) { 223 uint32_t drc_index = spapr_drc_index(drc); 224 trace_spapr_drc_set_allocation_state_finalizing(drc_index); 225 spapr_drc_detach(drc); 226 } 227 228 return RTAS_OUT_SUCCESS; 229 } 230 231 static char *spapr_drc_name(SpaprDrc *drc) 232 { 233 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); 234 235 /* human-readable name for a DRC to encode into the DT 236 * description. this is mainly only used within a guest in place 237 * of the unique DRC index. 238 * 239 * in the case of VIO/PCI devices, it corresponds to a "location 240 * code" that maps a logical device/function (DRC index) to a 241 * physical (or virtual in the case of VIO) location in the system 242 * by chaining together the "location label" for each 243 * encapsulating component. 244 * 245 * since this is more to do with diagnosing physical hardware 246 * issues than guest compatibility, we choose location codes/DRC 247 * names that adhere to the documented format, but avoid encoding 248 * the entire topology information into the label/code, instead 249 * just using the location codes based on the labels for the 250 * endpoints (VIO/PCI adaptor connectors), which is basically just 251 * "C" followed by an integer ID. 252 * 253 * DRC names as documented by PAPR+ v2.7, 13.5.2.4 254 * location codes as documented by PAPR+ v2.7, 12.3.1.5 255 */ 256 return g_strdup_printf("%s%d", drck->drc_name_prefix, drc->id); 257 } 258 259 /* 260 * dr-entity-sense sensor value 261 * returned via get-sensor-state RTAS calls 262 * as expected by state diagram in PAPR+ 2.7, 13.4 263 * based on the current allocation/indicator/power states 264 * for the DR connector. 265 */ 266 static SpaprDREntitySense physical_entity_sense(SpaprDrc *drc) 267 { 268 /* this assumes all PCI devices are assigned to a 'live insertion' 269 * power domain, where QEMU manages power state automatically as 270 * opposed to the guest. present, non-PCI resources are unaffected 271 * by power state. 272 */ 273 return drc->dev ? SPAPR_DR_ENTITY_SENSE_PRESENT 274 : SPAPR_DR_ENTITY_SENSE_EMPTY; 275 } 276 277 static SpaprDREntitySense logical_entity_sense(SpaprDrc *drc) 278 { 279 switch (drc->state) { 280 case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: 281 return SPAPR_DR_ENTITY_SENSE_UNUSABLE; 282 case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: 283 case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: 284 case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: 285 g_assert(drc->dev); 286 return SPAPR_DR_ENTITY_SENSE_PRESENT; 287 default: 288 g_assert_not_reached(); 289 } 290 } 291 292 static void prop_get_index(Object *obj, Visitor *v, const char *name, 293 void *opaque, Error **errp) 294 { 295 SpaprDrc *drc = SPAPR_DR_CONNECTOR(obj); 296 uint32_t value = spapr_drc_index(drc); 297 visit_type_uint32(v, name, &value, errp); 298 } 299 300 static void prop_get_fdt(Object *obj, Visitor *v, const char *name, 301 void *opaque, Error **errp) 302 { 303 SpaprDrc *drc = SPAPR_DR_CONNECTOR(obj); 304 QNull *null = NULL; 305 Error *err = NULL; 306 int fdt_offset_next, fdt_offset, fdt_depth; 307 void *fdt; 308 309 if (!drc->fdt) { 310 visit_type_null(v, NULL, &null, errp); 311 qobject_unref(null); 312 return; 313 } 314 315 fdt = drc->fdt; 316 fdt_offset = drc->fdt_start_offset; 317 fdt_depth = 0; 318 319 do { 320 const char *name = NULL; 321 const struct fdt_property *prop = NULL; 322 int prop_len = 0, name_len = 0; 323 uint32_t tag; 324 325 tag = fdt_next_tag(fdt, fdt_offset, &fdt_offset_next); 326 switch (tag) { 327 case FDT_BEGIN_NODE: 328 fdt_depth++; 329 name = fdt_get_name(fdt, fdt_offset, &name_len); 330 visit_start_struct(v, name, NULL, 0, &err); 331 if (err) { 332 error_propagate(errp, err); 333 return; 334 } 335 break; 336 case FDT_END_NODE: 337 /* shouldn't ever see an FDT_END_NODE before FDT_BEGIN_NODE */ 338 g_assert(fdt_depth > 0); 339 visit_check_struct(v, &err); 340 visit_end_struct(v, NULL); 341 if (err) { 342 error_propagate(errp, err); 343 return; 344 } 345 fdt_depth--; 346 break; 347 case FDT_PROP: { 348 int i; 349 prop = fdt_get_property_by_offset(fdt, fdt_offset, &prop_len); 350 name = fdt_string(fdt, fdt32_to_cpu(prop->nameoff)); 351 visit_start_list(v, name, NULL, 0, &err); 352 if (err) { 353 error_propagate(errp, err); 354 return; 355 } 356 for (i = 0; i < prop_len; i++) { 357 visit_type_uint8(v, NULL, (uint8_t *)&prop->data[i], &err); 358 if (err) { 359 error_propagate(errp, err); 360 return; 361 } 362 } 363 visit_check_list(v, &err); 364 visit_end_list(v, NULL); 365 if (err) { 366 error_propagate(errp, err); 367 return; 368 } 369 break; 370 } 371 default: 372 error_report("device FDT in unexpected state: %d", tag); 373 abort(); 374 } 375 fdt_offset = fdt_offset_next; 376 } while (fdt_depth != 0); 377 } 378 379 void spapr_drc_attach(SpaprDrc *drc, DeviceState *d, Error **errp) 380 { 381 trace_spapr_drc_attach(spapr_drc_index(drc)); 382 383 if (drc->dev) { 384 error_setg(errp, "an attached device is still awaiting release"); 385 return; 386 } 387 g_assert((drc->state == SPAPR_DRC_STATE_LOGICAL_UNUSABLE) 388 || (drc->state == SPAPR_DRC_STATE_PHYSICAL_POWERON)); 389 390 drc->dev = d; 391 392 object_property_add_link(OBJECT(drc), "device", 393 object_get_typename(OBJECT(drc->dev)), 394 (Object **)(&drc->dev), 395 NULL, 0, NULL); 396 } 397 398 static void spapr_drc_release(SpaprDrc *drc) 399 { 400 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); 401 402 drck->release(drc->dev); 403 404 drc->unplug_requested = false; 405 g_free(drc->fdt); 406 drc->fdt = NULL; 407 drc->fdt_start_offset = 0; 408 object_property_del(OBJECT(drc), "device", &error_abort); 409 drc->dev = NULL; 410 } 411 412 void spapr_drc_detach(SpaprDrc *drc) 413 { 414 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); 415 416 trace_spapr_drc_detach(spapr_drc_index(drc)); 417 418 g_assert(drc->dev); 419 420 drc->unplug_requested = true; 421 422 if (drc->state != drck->empty_state) { 423 trace_spapr_drc_awaiting_quiesce(spapr_drc_index(drc)); 424 return; 425 } 426 427 spapr_drc_release(drc); 428 } 429 430 void spapr_drc_reset(SpaprDrc *drc) 431 { 432 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); 433 434 trace_spapr_drc_reset(spapr_drc_index(drc)); 435 436 /* immediately upon reset we can safely assume DRCs whose devices 437 * are pending removal can be safely removed. 438 */ 439 if (drc->unplug_requested) { 440 spapr_drc_release(drc); 441 } 442 443 if (drc->dev) { 444 /* A device present at reset is ready to go, same as coldplugged */ 445 drc->state = drck->ready_state; 446 /* 447 * Ensure that we are able to send the FDT fragment again 448 * via configure-connector call if the guest requests. 449 */ 450 drc->ccs_offset = drc->fdt_start_offset; 451 drc->ccs_depth = 0; 452 } else { 453 drc->state = drck->empty_state; 454 drc->ccs_offset = -1; 455 drc->ccs_depth = -1; 456 } 457 } 458 459 bool spapr_drc_transient(SpaprDrc *drc) 460 { 461 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); 462 463 /* 464 * If no dev is plugged in there is no need to migrate the DRC state 465 * nor to reset the DRC at CAS. 466 */ 467 if (!drc->dev) { 468 return false; 469 } 470 471 /* 472 * We need to reset the DRC at CAS or to migrate the DRC state if it's 473 * not equal to the expected long-term state, which is the same as the 474 * coldplugged initial state. 475 */ 476 return (drc->state != drck->ready_state); 477 } 478 479 static bool spapr_drc_needed(void *opaque) 480 { 481 return spapr_drc_transient(opaque); 482 } 483 484 static const VMStateDescription vmstate_spapr_drc = { 485 .name = "spapr_drc", 486 .version_id = 1, 487 .minimum_version_id = 1, 488 .needed = spapr_drc_needed, 489 .fields = (VMStateField []) { 490 VMSTATE_UINT32(state, SpaprDrc), 491 VMSTATE_END_OF_LIST() 492 } 493 }; 494 495 static void realize(DeviceState *d, Error **errp) 496 { 497 SpaprDrc *drc = SPAPR_DR_CONNECTOR(d); 498 Object *root_container; 499 gchar *link_name; 500 gchar *child_name; 501 Error *err = NULL; 502 503 trace_spapr_drc_realize(spapr_drc_index(drc)); 504 /* NOTE: we do this as part of realize/unrealize due to the fact 505 * that the guest will communicate with the DRC via RTAS calls 506 * referencing the global DRC index. By unlinking the DRC 507 * from DRC_CONTAINER_PATH/<drc_index> we effectively make it 508 * inaccessible by the guest, since lookups rely on this path 509 * existing in the composition tree 510 */ 511 root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); 512 link_name = g_strdup_printf("%x", spapr_drc_index(drc)); 513 child_name = object_get_canonical_path_component(OBJECT(drc)); 514 trace_spapr_drc_realize_child(spapr_drc_index(drc), child_name); 515 object_property_add_alias(root_container, link_name, 516 drc->owner, child_name, &err); 517 g_free(child_name); 518 g_free(link_name); 519 if (err) { 520 error_propagate(errp, err); 521 return; 522 } 523 vmstate_register(VMSTATE_IF(drc), spapr_drc_index(drc), &vmstate_spapr_drc, 524 drc); 525 trace_spapr_drc_realize_complete(spapr_drc_index(drc)); 526 } 527 528 static void unrealize(DeviceState *d, Error **errp) 529 { 530 SpaprDrc *drc = SPAPR_DR_CONNECTOR(d); 531 Object *root_container; 532 gchar *name; 533 534 trace_spapr_drc_unrealize(spapr_drc_index(drc)); 535 vmstate_unregister(VMSTATE_IF(drc), &vmstate_spapr_drc, drc); 536 root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); 537 name = g_strdup_printf("%x", spapr_drc_index(drc)); 538 object_property_del(root_container, name, errp); 539 g_free(name); 540 } 541 542 SpaprDrc *spapr_dr_connector_new(Object *owner, const char *type, 543 uint32_t id) 544 { 545 SpaprDrc *drc = SPAPR_DR_CONNECTOR(object_new(type)); 546 char *prop_name; 547 548 drc->id = id; 549 drc->owner = owner; 550 prop_name = g_strdup_printf("dr-connector[%"PRIu32"]", 551 spapr_drc_index(drc)); 552 object_property_add_child(owner, prop_name, OBJECT(drc), &error_abort); 553 object_unref(OBJECT(drc)); 554 object_property_set_bool(OBJECT(drc), true, "realized", NULL); 555 g_free(prop_name); 556 557 return drc; 558 } 559 560 static void spapr_dr_connector_instance_init(Object *obj) 561 { 562 SpaprDrc *drc = SPAPR_DR_CONNECTOR(obj); 563 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); 564 565 object_property_add_uint32_ptr(obj, "id", &drc->id, NULL); 566 object_property_add(obj, "index", "uint32", prop_get_index, 567 NULL, NULL, NULL, NULL); 568 object_property_add(obj, "fdt", "struct", prop_get_fdt, 569 NULL, NULL, NULL, NULL); 570 drc->state = drck->empty_state; 571 } 572 573 static void spapr_dr_connector_class_init(ObjectClass *k, void *data) 574 { 575 DeviceClass *dk = DEVICE_CLASS(k); 576 577 dk->realize = realize; 578 dk->unrealize = unrealize; 579 /* 580 * Reason: it crashes FIXME find and document the real reason 581 */ 582 dk->user_creatable = false; 583 } 584 585 static bool drc_physical_needed(void *opaque) 586 { 587 SpaprDrcPhysical *drcp = (SpaprDrcPhysical *)opaque; 588 SpaprDrc *drc = SPAPR_DR_CONNECTOR(drcp); 589 590 if ((drc->dev && (drcp->dr_indicator == SPAPR_DR_INDICATOR_ACTIVE)) 591 || (!drc->dev && (drcp->dr_indicator == SPAPR_DR_INDICATOR_INACTIVE))) { 592 return false; 593 } 594 return true; 595 } 596 597 static const VMStateDescription vmstate_spapr_drc_physical = { 598 .name = "spapr_drc/physical", 599 .version_id = 1, 600 .minimum_version_id = 1, 601 .needed = drc_physical_needed, 602 .fields = (VMStateField []) { 603 VMSTATE_UINT32(dr_indicator, SpaprDrcPhysical), 604 VMSTATE_END_OF_LIST() 605 } 606 }; 607 608 static void drc_physical_reset(void *opaque) 609 { 610 SpaprDrc *drc = SPAPR_DR_CONNECTOR(opaque); 611 SpaprDrcPhysical *drcp = SPAPR_DRC_PHYSICAL(drc); 612 613 if (drc->dev) { 614 drcp->dr_indicator = SPAPR_DR_INDICATOR_ACTIVE; 615 } else { 616 drcp->dr_indicator = SPAPR_DR_INDICATOR_INACTIVE; 617 } 618 } 619 620 static void realize_physical(DeviceState *d, Error **errp) 621 { 622 SpaprDrcPhysical *drcp = SPAPR_DRC_PHYSICAL(d); 623 Error *local_err = NULL; 624 625 realize(d, &local_err); 626 if (local_err) { 627 error_propagate(errp, local_err); 628 return; 629 } 630 631 vmstate_register(VMSTATE_IF(drcp), 632 spapr_drc_index(SPAPR_DR_CONNECTOR(drcp)), 633 &vmstate_spapr_drc_physical, drcp); 634 qemu_register_reset(drc_physical_reset, drcp); 635 } 636 637 static void unrealize_physical(DeviceState *d, Error **errp) 638 { 639 SpaprDrcPhysical *drcp = SPAPR_DRC_PHYSICAL(d); 640 Error *local_err = NULL; 641 642 unrealize(d, &local_err); 643 if (local_err) { 644 error_propagate(errp, local_err); 645 return; 646 } 647 648 vmstate_unregister(VMSTATE_IF(drcp), &vmstate_spapr_drc_physical, drcp); 649 qemu_unregister_reset(drc_physical_reset, drcp); 650 } 651 652 static void spapr_drc_physical_class_init(ObjectClass *k, void *data) 653 { 654 DeviceClass *dk = DEVICE_CLASS(k); 655 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); 656 657 dk->realize = realize_physical; 658 dk->unrealize = unrealize_physical; 659 drck->dr_entity_sense = physical_entity_sense; 660 drck->isolate = drc_isolate_physical; 661 drck->unisolate = drc_unisolate_physical; 662 drck->ready_state = SPAPR_DRC_STATE_PHYSICAL_CONFIGURED; 663 drck->empty_state = SPAPR_DRC_STATE_PHYSICAL_POWERON; 664 } 665 666 static void spapr_drc_logical_class_init(ObjectClass *k, void *data) 667 { 668 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); 669 670 drck->dr_entity_sense = logical_entity_sense; 671 drck->isolate = drc_isolate_logical; 672 drck->unisolate = drc_unisolate_logical; 673 drck->ready_state = SPAPR_DRC_STATE_LOGICAL_CONFIGURED; 674 drck->empty_state = SPAPR_DRC_STATE_LOGICAL_UNUSABLE; 675 } 676 677 static void spapr_drc_cpu_class_init(ObjectClass *k, void *data) 678 { 679 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); 680 681 drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_CPU; 682 drck->typename = "CPU"; 683 drck->drc_name_prefix = "CPU "; 684 drck->release = spapr_core_release; 685 drck->dt_populate = spapr_core_dt_populate; 686 } 687 688 static void spapr_drc_pci_class_init(ObjectClass *k, void *data) 689 { 690 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); 691 692 drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_PCI; 693 drck->typename = "28"; 694 drck->drc_name_prefix = "C"; 695 drck->release = spapr_phb_remove_pci_device_cb; 696 drck->dt_populate = spapr_pci_dt_populate; 697 } 698 699 static void spapr_drc_lmb_class_init(ObjectClass *k, void *data) 700 { 701 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); 702 703 drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_LMB; 704 drck->typename = "MEM"; 705 drck->drc_name_prefix = "LMB "; 706 drck->release = spapr_lmb_release; 707 drck->dt_populate = spapr_lmb_dt_populate; 708 } 709 710 static void spapr_drc_phb_class_init(ObjectClass *k, void *data) 711 { 712 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); 713 714 drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_PHB; 715 drck->typename = "PHB"; 716 drck->drc_name_prefix = "PHB "; 717 drck->release = spapr_phb_release; 718 drck->dt_populate = spapr_phb_dt_populate; 719 } 720 721 static void spapr_drc_pmem_class_init(ObjectClass *k, void *data) 722 { 723 SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); 724 725 drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_PMEM; 726 drck->typename = "PMEM"; 727 drck->drc_name_prefix = "PMEM "; 728 drck->release = NULL; 729 drck->dt_populate = spapr_pmem_dt_populate; 730 } 731 732 static const TypeInfo spapr_dr_connector_info = { 733 .name = TYPE_SPAPR_DR_CONNECTOR, 734 .parent = TYPE_DEVICE, 735 .instance_size = sizeof(SpaprDrc), 736 .instance_init = spapr_dr_connector_instance_init, 737 .class_size = sizeof(SpaprDrcClass), 738 .class_init = spapr_dr_connector_class_init, 739 .abstract = true, 740 }; 741 742 static const TypeInfo spapr_drc_physical_info = { 743 .name = TYPE_SPAPR_DRC_PHYSICAL, 744 .parent = TYPE_SPAPR_DR_CONNECTOR, 745 .instance_size = sizeof(SpaprDrcPhysical), 746 .class_init = spapr_drc_physical_class_init, 747 .abstract = true, 748 }; 749 750 static const TypeInfo spapr_drc_logical_info = { 751 .name = TYPE_SPAPR_DRC_LOGICAL, 752 .parent = TYPE_SPAPR_DR_CONNECTOR, 753 .class_init = spapr_drc_logical_class_init, 754 .abstract = true, 755 }; 756 757 static const TypeInfo spapr_drc_cpu_info = { 758 .name = TYPE_SPAPR_DRC_CPU, 759 .parent = TYPE_SPAPR_DRC_LOGICAL, 760 .class_init = spapr_drc_cpu_class_init, 761 }; 762 763 static const TypeInfo spapr_drc_pci_info = { 764 .name = TYPE_SPAPR_DRC_PCI, 765 .parent = TYPE_SPAPR_DRC_PHYSICAL, 766 .class_init = spapr_drc_pci_class_init, 767 }; 768 769 static const TypeInfo spapr_drc_lmb_info = { 770 .name = TYPE_SPAPR_DRC_LMB, 771 .parent = TYPE_SPAPR_DRC_LOGICAL, 772 .class_init = spapr_drc_lmb_class_init, 773 }; 774 775 static const TypeInfo spapr_drc_phb_info = { 776 .name = TYPE_SPAPR_DRC_PHB, 777 .parent = TYPE_SPAPR_DRC_LOGICAL, 778 .instance_size = sizeof(SpaprDrc), 779 .class_init = spapr_drc_phb_class_init, 780 }; 781 782 static const TypeInfo spapr_drc_pmem_info = { 783 .name = TYPE_SPAPR_DRC_PMEM, 784 .parent = TYPE_SPAPR_DRC_LOGICAL, 785 .class_init = spapr_drc_pmem_class_init, 786 }; 787 788 /* helper functions for external users */ 789 790 SpaprDrc *spapr_drc_by_index(uint32_t index) 791 { 792 Object *obj; 793 gchar *name; 794 795 name = g_strdup_printf("%s/%x", DRC_CONTAINER_PATH, index); 796 obj = object_resolve_path(name, NULL); 797 g_free(name); 798 799 return !obj ? NULL : SPAPR_DR_CONNECTOR(obj); 800 } 801 802 SpaprDrc *spapr_drc_by_id(const char *type, uint32_t id) 803 { 804 SpaprDrcClass *drck 805 = SPAPR_DR_CONNECTOR_CLASS(object_class_by_name(type)); 806 807 return spapr_drc_by_index(drck->typeshift << DRC_INDEX_TYPE_SHIFT 808 | (id & DRC_INDEX_ID_MASK)); 809 } 810 811 /** 812 * spapr_dt_drc 813 * 814 * @fdt: libfdt device tree 815 * @path: path in the DT to generate properties 816 * @owner: parent Object/DeviceState for which to generate DRC 817 * descriptions for 818 * @drc_type_mask: mask of SpaprDrcType values corresponding 819 * to the types of DRCs to generate entries for 820 * 821 * generate OF properties to describe DRC topology/indices to guests 822 * 823 * as documented in PAPR+ v2.1, 13.5.2 824 */ 825 int spapr_dt_drc(void *fdt, int offset, Object *owner, uint32_t drc_type_mask) 826 { 827 Object *root_container; 828 ObjectProperty *prop; 829 ObjectPropertyIterator iter; 830 uint32_t drc_count = 0; 831 GArray *drc_indexes, *drc_power_domains; 832 GString *drc_names, *drc_types; 833 int ret; 834 835 /* the first entry of each properties is a 32-bit integer encoding 836 * the number of elements in the array. we won't know this until 837 * we complete the iteration through all the matching DRCs, but 838 * reserve the space now and set the offsets accordingly so we 839 * can fill them in later. 840 */ 841 drc_indexes = g_array_new(false, true, sizeof(uint32_t)); 842 drc_indexes = g_array_set_size(drc_indexes, 1); 843 drc_power_domains = g_array_new(false, true, sizeof(uint32_t)); 844 drc_power_domains = g_array_set_size(drc_power_domains, 1); 845 drc_names = g_string_set_size(g_string_new(NULL), sizeof(uint32_t)); 846 drc_types = g_string_set_size(g_string_new(NULL), sizeof(uint32_t)); 847 848 /* aliases for all DRConnector objects will be rooted in QOM 849 * composition tree at DRC_CONTAINER_PATH 850 */ 851 root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); 852 853 object_property_iter_init(&iter, root_container); 854 while ((prop = object_property_iter_next(&iter))) { 855 Object *obj; 856 SpaprDrc *drc; 857 SpaprDrcClass *drck; 858 char *drc_name = NULL; 859 uint32_t drc_index, drc_power_domain; 860 861 if (!strstart(prop->type, "link<", NULL)) { 862 continue; 863 } 864 865 obj = object_property_get_link(root_container, prop->name, NULL); 866 drc = SPAPR_DR_CONNECTOR(obj); 867 drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); 868 869 if (owner && (drc->owner != owner)) { 870 continue; 871 } 872 873 if ((spapr_drc_type(drc) & drc_type_mask) == 0) { 874 continue; 875 } 876 877 drc_count++; 878 879 /* ibm,drc-indexes */ 880 drc_index = cpu_to_be32(spapr_drc_index(drc)); 881 g_array_append_val(drc_indexes, drc_index); 882 883 /* ibm,drc-power-domains */ 884 drc_power_domain = cpu_to_be32(-1); 885 g_array_append_val(drc_power_domains, drc_power_domain); 886 887 /* ibm,drc-names */ 888 drc_name = spapr_drc_name(drc); 889 drc_names = g_string_append(drc_names, drc_name); 890 drc_names = g_string_insert_len(drc_names, -1, "\0", 1); 891 g_free(drc_name); 892 893 /* ibm,drc-types */ 894 drc_types = g_string_append(drc_types, drck->typename); 895 drc_types = g_string_insert_len(drc_types, -1, "\0", 1); 896 } 897 898 /* now write the drc count into the space we reserved at the 899 * beginning of the arrays previously 900 */ 901 *(uint32_t *)drc_indexes->data = cpu_to_be32(drc_count); 902 *(uint32_t *)drc_power_domains->data = cpu_to_be32(drc_count); 903 *(uint32_t *)drc_names->str = cpu_to_be32(drc_count); 904 *(uint32_t *)drc_types->str = cpu_to_be32(drc_count); 905 906 ret = fdt_setprop(fdt, offset, "ibm,drc-indexes", 907 drc_indexes->data, 908 drc_indexes->len * sizeof(uint32_t)); 909 if (ret) { 910 error_report("Couldn't create ibm,drc-indexes property"); 911 goto out; 912 } 913 914 ret = fdt_setprop(fdt, offset, "ibm,drc-power-domains", 915 drc_power_domains->data, 916 drc_power_domains->len * sizeof(uint32_t)); 917 if (ret) { 918 error_report("Couldn't finalize ibm,drc-power-domains property"); 919 goto out; 920 } 921 922 ret = fdt_setprop(fdt, offset, "ibm,drc-names", 923 drc_names->str, drc_names->len); 924 if (ret) { 925 error_report("Couldn't finalize ibm,drc-names property"); 926 goto out; 927 } 928 929 ret = fdt_setprop(fdt, offset, "ibm,drc-types", 930 drc_types->str, drc_types->len); 931 if (ret) { 932 error_report("Couldn't finalize ibm,drc-types property"); 933 goto out; 934 } 935 936 out: 937 g_array_free(drc_indexes, true); 938 g_array_free(drc_power_domains, true); 939 g_string_free(drc_names, true); 940 g_string_free(drc_types, true); 941 942 return ret; 943 } 944 945 /* 946 * RTAS calls 947 */ 948 949 static uint32_t rtas_set_isolation_state(uint32_t idx, uint32_t state) 950 { 951 SpaprDrc *drc = spapr_drc_by_index(idx); 952 SpaprDrcClass *drck; 953 954 if (!drc) { 955 return RTAS_OUT_NO_SUCH_INDICATOR; 956 } 957 958 trace_spapr_drc_set_isolation_state(spapr_drc_index(drc), state); 959 960 drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); 961 962 switch (state) { 963 case SPAPR_DR_ISOLATION_STATE_ISOLATED: 964 return drck->isolate(drc); 965 966 case SPAPR_DR_ISOLATION_STATE_UNISOLATED: 967 return drck->unisolate(drc); 968 969 default: 970 return RTAS_OUT_PARAM_ERROR; 971 } 972 } 973 974 static uint32_t rtas_set_allocation_state(uint32_t idx, uint32_t state) 975 { 976 SpaprDrc *drc = spapr_drc_by_index(idx); 977 978 if (!drc || !object_dynamic_cast(OBJECT(drc), TYPE_SPAPR_DRC_LOGICAL)) { 979 return RTAS_OUT_NO_SUCH_INDICATOR; 980 } 981 982 trace_spapr_drc_set_allocation_state(spapr_drc_index(drc), state); 983 984 switch (state) { 985 case SPAPR_DR_ALLOCATION_STATE_USABLE: 986 return drc_set_usable(drc); 987 988 case SPAPR_DR_ALLOCATION_STATE_UNUSABLE: 989 return drc_set_unusable(drc); 990 991 default: 992 return RTAS_OUT_PARAM_ERROR; 993 } 994 } 995 996 static uint32_t rtas_set_dr_indicator(uint32_t idx, uint32_t state) 997 { 998 SpaprDrc *drc = spapr_drc_by_index(idx); 999 1000 if (!drc || !object_dynamic_cast(OBJECT(drc), TYPE_SPAPR_DRC_PHYSICAL)) { 1001 return RTAS_OUT_NO_SUCH_INDICATOR; 1002 } 1003 if ((state != SPAPR_DR_INDICATOR_INACTIVE) 1004 && (state != SPAPR_DR_INDICATOR_ACTIVE) 1005 && (state != SPAPR_DR_INDICATOR_IDENTIFY) 1006 && (state != SPAPR_DR_INDICATOR_ACTION)) { 1007 return RTAS_OUT_PARAM_ERROR; /* bad state parameter */ 1008 } 1009 1010 trace_spapr_drc_set_dr_indicator(idx, state); 1011 SPAPR_DRC_PHYSICAL(drc)->dr_indicator = state; 1012 return RTAS_OUT_SUCCESS; 1013 } 1014 1015 static void rtas_set_indicator(PowerPCCPU *cpu, SpaprMachineState *spapr, 1016 uint32_t token, 1017 uint32_t nargs, target_ulong args, 1018 uint32_t nret, target_ulong rets) 1019 { 1020 uint32_t type, idx, state; 1021 uint32_t ret = RTAS_OUT_SUCCESS; 1022 1023 if (nargs != 3 || nret != 1) { 1024 ret = RTAS_OUT_PARAM_ERROR; 1025 goto out; 1026 } 1027 1028 type = rtas_ld(args, 0); 1029 idx = rtas_ld(args, 1); 1030 state = rtas_ld(args, 2); 1031 1032 switch (type) { 1033 case RTAS_SENSOR_TYPE_ISOLATION_STATE: 1034 ret = rtas_set_isolation_state(idx, state); 1035 break; 1036 case RTAS_SENSOR_TYPE_DR: 1037 ret = rtas_set_dr_indicator(idx, state); 1038 break; 1039 case RTAS_SENSOR_TYPE_ALLOCATION_STATE: 1040 ret = rtas_set_allocation_state(idx, state); 1041 break; 1042 default: 1043 ret = RTAS_OUT_NOT_SUPPORTED; 1044 } 1045 1046 out: 1047 rtas_st(rets, 0, ret); 1048 } 1049 1050 static void rtas_get_sensor_state(PowerPCCPU *cpu, SpaprMachineState *spapr, 1051 uint32_t token, uint32_t nargs, 1052 target_ulong args, uint32_t nret, 1053 target_ulong rets) 1054 { 1055 uint32_t sensor_type; 1056 uint32_t sensor_index; 1057 uint32_t sensor_state = 0; 1058 SpaprDrc *drc; 1059 SpaprDrcClass *drck; 1060 uint32_t ret = RTAS_OUT_SUCCESS; 1061 1062 if (nargs != 2 || nret != 2) { 1063 ret = RTAS_OUT_PARAM_ERROR; 1064 goto out; 1065 } 1066 1067 sensor_type = rtas_ld(args, 0); 1068 sensor_index = rtas_ld(args, 1); 1069 1070 if (sensor_type != RTAS_SENSOR_TYPE_ENTITY_SENSE) { 1071 /* currently only DR-related sensors are implemented */ 1072 trace_spapr_rtas_get_sensor_state_not_supported(sensor_index, 1073 sensor_type); 1074 ret = RTAS_OUT_NOT_SUPPORTED; 1075 goto out; 1076 } 1077 1078 drc = spapr_drc_by_index(sensor_index); 1079 if (!drc) { 1080 trace_spapr_rtas_get_sensor_state_invalid(sensor_index); 1081 ret = RTAS_OUT_PARAM_ERROR; 1082 goto out; 1083 } 1084 drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); 1085 sensor_state = drck->dr_entity_sense(drc); 1086 1087 out: 1088 rtas_st(rets, 0, ret); 1089 rtas_st(rets, 1, sensor_state); 1090 } 1091 1092 /* configure-connector work area offsets, int32_t units for field 1093 * indexes, bytes for field offset/len values. 1094 * 1095 * as documented by PAPR+ v2.7, 13.5.3.5 1096 */ 1097 #define CC_IDX_NODE_NAME_OFFSET 2 1098 #define CC_IDX_PROP_NAME_OFFSET 2 1099 #define CC_IDX_PROP_LEN 3 1100 #define CC_IDX_PROP_DATA_OFFSET 4 1101 #define CC_VAL_DATA_OFFSET ((CC_IDX_PROP_DATA_OFFSET + 1) * 4) 1102 #define CC_WA_LEN 4096 1103 1104 static void configure_connector_st(target_ulong addr, target_ulong offset, 1105 const void *buf, size_t len) 1106 { 1107 cpu_physical_memory_write(ppc64_phys_to_real(addr + offset), 1108 buf, MIN(len, CC_WA_LEN - offset)); 1109 } 1110 1111 static void rtas_ibm_configure_connector(PowerPCCPU *cpu, 1112 SpaprMachineState *spapr, 1113 uint32_t token, uint32_t nargs, 1114 target_ulong args, uint32_t nret, 1115 target_ulong rets) 1116 { 1117 uint64_t wa_addr; 1118 uint64_t wa_offset; 1119 uint32_t drc_index; 1120 SpaprDrc *drc; 1121 SpaprDrcClass *drck; 1122 SpaprDRCCResponse resp = SPAPR_DR_CC_RESPONSE_CONTINUE; 1123 int rc; 1124 1125 if (nargs != 2 || nret != 1) { 1126 rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); 1127 return; 1128 } 1129 1130 wa_addr = ((uint64_t)rtas_ld(args, 1) << 32) | rtas_ld(args, 0); 1131 1132 drc_index = rtas_ld(wa_addr, 0); 1133 drc = spapr_drc_by_index(drc_index); 1134 if (!drc) { 1135 trace_spapr_rtas_ibm_configure_connector_invalid(drc_index); 1136 rc = RTAS_OUT_PARAM_ERROR; 1137 goto out; 1138 } 1139 1140 if ((drc->state != SPAPR_DRC_STATE_LOGICAL_UNISOLATE) 1141 && (drc->state != SPAPR_DRC_STATE_PHYSICAL_UNISOLATE) 1142 && (drc->state != SPAPR_DRC_STATE_LOGICAL_CONFIGURED) 1143 && (drc->state != SPAPR_DRC_STATE_PHYSICAL_CONFIGURED)) { 1144 /* 1145 * Need to unisolate the device before configuring 1146 * or it should already be in configured state to 1147 * allow configure-connector be called repeatedly. 1148 */ 1149 rc = SPAPR_DR_CC_RESPONSE_NOT_CONFIGURABLE; 1150 goto out; 1151 } 1152 1153 drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); 1154 1155 if (!drc->fdt) { 1156 Error *local_err = NULL; 1157 void *fdt; 1158 int fdt_size; 1159 1160 fdt = create_device_tree(&fdt_size); 1161 1162 if (drck->dt_populate(drc, spapr, fdt, &drc->fdt_start_offset, 1163 &local_err)) { 1164 g_free(fdt); 1165 error_free(local_err); 1166 rc = SPAPR_DR_CC_RESPONSE_ERROR; 1167 goto out; 1168 } 1169 1170 drc->fdt = fdt; 1171 drc->ccs_offset = drc->fdt_start_offset; 1172 drc->ccs_depth = 0; 1173 } 1174 1175 do { 1176 uint32_t tag; 1177 const char *name; 1178 const struct fdt_property *prop; 1179 int fdt_offset_next, prop_len; 1180 1181 tag = fdt_next_tag(drc->fdt, drc->ccs_offset, &fdt_offset_next); 1182 1183 switch (tag) { 1184 case FDT_BEGIN_NODE: 1185 drc->ccs_depth++; 1186 name = fdt_get_name(drc->fdt, drc->ccs_offset, NULL); 1187 1188 /* provide the name of the next OF node */ 1189 wa_offset = CC_VAL_DATA_OFFSET; 1190 rtas_st(wa_addr, CC_IDX_NODE_NAME_OFFSET, wa_offset); 1191 configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1); 1192 resp = SPAPR_DR_CC_RESPONSE_NEXT_CHILD; 1193 break; 1194 case FDT_END_NODE: 1195 drc->ccs_depth--; 1196 if (drc->ccs_depth == 0) { 1197 uint32_t drc_index = spapr_drc_index(drc); 1198 1199 /* done sending the device tree, move to configured state */ 1200 trace_spapr_drc_set_configured(drc_index); 1201 drc->state = drck->ready_state; 1202 /* 1203 * Ensure that we are able to send the FDT fragment 1204 * again via configure-connector call if the guest requests. 1205 */ 1206 drc->ccs_offset = drc->fdt_start_offset; 1207 drc->ccs_depth = 0; 1208 fdt_offset_next = drc->fdt_start_offset; 1209 resp = SPAPR_DR_CC_RESPONSE_SUCCESS; 1210 } else { 1211 resp = SPAPR_DR_CC_RESPONSE_PREV_PARENT; 1212 } 1213 break; 1214 case FDT_PROP: 1215 prop = fdt_get_property_by_offset(drc->fdt, drc->ccs_offset, 1216 &prop_len); 1217 name = fdt_string(drc->fdt, fdt32_to_cpu(prop->nameoff)); 1218 1219 /* provide the name of the next OF property */ 1220 wa_offset = CC_VAL_DATA_OFFSET; 1221 rtas_st(wa_addr, CC_IDX_PROP_NAME_OFFSET, wa_offset); 1222 configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1); 1223 1224 /* provide the length and value of the OF property. data gets 1225 * placed immediately after NULL terminator of the OF property's 1226 * name string 1227 */ 1228 wa_offset += strlen(name) + 1, 1229 rtas_st(wa_addr, CC_IDX_PROP_LEN, prop_len); 1230 rtas_st(wa_addr, CC_IDX_PROP_DATA_OFFSET, wa_offset); 1231 configure_connector_st(wa_addr, wa_offset, prop->data, prop_len); 1232 resp = SPAPR_DR_CC_RESPONSE_NEXT_PROPERTY; 1233 break; 1234 case FDT_END: 1235 resp = SPAPR_DR_CC_RESPONSE_ERROR; 1236 default: 1237 /* keep seeking for an actionable tag */ 1238 break; 1239 } 1240 if (drc->ccs_offset >= 0) { 1241 drc->ccs_offset = fdt_offset_next; 1242 } 1243 } while (resp == SPAPR_DR_CC_RESPONSE_CONTINUE); 1244 1245 rc = resp; 1246 out: 1247 rtas_st(rets, 0, rc); 1248 } 1249 1250 static void spapr_drc_register_types(void) 1251 { 1252 type_register_static(&spapr_dr_connector_info); 1253 type_register_static(&spapr_drc_physical_info); 1254 type_register_static(&spapr_drc_logical_info); 1255 type_register_static(&spapr_drc_cpu_info); 1256 type_register_static(&spapr_drc_pci_info); 1257 type_register_static(&spapr_drc_lmb_info); 1258 type_register_static(&spapr_drc_phb_info); 1259 type_register_static(&spapr_drc_pmem_info); 1260 1261 spapr_rtas_register(RTAS_SET_INDICATOR, "set-indicator", 1262 rtas_set_indicator); 1263 spapr_rtas_register(RTAS_GET_SENSOR_STATE, "get-sensor-state", 1264 rtas_get_sensor_state); 1265 spapr_rtas_register(RTAS_IBM_CONFIGURE_CONNECTOR, "ibm,configure-connector", 1266 rtas_ibm_configure_connector); 1267 } 1268 type_init(spapr_drc_register_types) 1269