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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 | ||
9d4c0f4f | 62 | drc->state = SPAPR_DRC_STATE_PHYSICAL_POWERON; |
0dfabd39 | 63 | |
f1c52354 | 64 | if (drc->unplug_requested) { |
0dfabd39 | 65 | uint32_t drc_index = spapr_drc_index(drc); |
9d4c0f4f DG |
66 | trace_spapr_drc_set_isolation_state_finalizing(drc_index); |
67 | spapr_drc_detach(drc); | |
9d1852ce | 68 | } |
0dfabd39 DG |
69 | |
70 | return RTAS_OUT_SUCCESS; | |
71 | } | |
72 | ||
73 | static uint32_t drc_unisolate_physical(sPAPRDRConnector *drc) | |
74 | { | |
9d4c0f4f DG |
75 | switch (drc->state) { |
76 | case SPAPR_DRC_STATE_PHYSICAL_UNISOLATE: | |
77 | case SPAPR_DRC_STATE_PHYSICAL_CONFIGURED: | |
78 | return RTAS_OUT_SUCCESS; /* Nothing to do */ | |
79 | case SPAPR_DRC_STATE_PHYSICAL_POWERON: | |
80 | break; /* see below */ | |
81 | default: | |
82 | g_assert_not_reached(); | |
83 | } | |
84 | ||
0dfabd39 DG |
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 | ||
9d4c0f4f | 93 | drc->state = SPAPR_DRC_STATE_PHYSICAL_UNISOLATE; |
4445b1d2 DG |
94 | drc->ccs_offset = drc->fdt_start_offset; |
95 | drc->ccs_depth = 0; | |
0dfabd39 DG |
96 | |
97 | return RTAS_OUT_SUCCESS; | |
98 | } | |
99 | ||
100 | static uint32_t drc_isolate_logical(sPAPRDRConnector *drc) | |
101 | { | |
9d4c0f4f DG |
102 | switch (drc->state) { |
103 | case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: | |
104 | case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: | |
105 | return RTAS_OUT_SUCCESS; /* Nothing to do */ | |
106 | case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: | |
107 | break; /* see below */ | |
108 | case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: | |
109 | return RTAS_OUT_PARAM_ERROR; /* not allowed */ | |
110 | default: | |
111 | g_assert_not_reached(); | |
112 | } | |
113 | ||
cf632463 BR |
114 | /* |
115 | * Fail any requests to ISOLATE the LMB DRC if this LMB doesn't | |
116 | * belong to a DIMM device that is marked for removal. | |
117 | * | |
118 | * Currently the guest userspace tool drmgr that drives the memory | |
119 | * hotplug/unplug will just try to remove a set of 'removable' LMBs | |
120 | * in response to a hot unplug request that is based on drc-count. | |
121 | * If the LMB being removed doesn't belong to a DIMM device that is | |
122 | * actually being unplugged, fail the isolation request here. | |
123 | */ | |
0dfabd39 | 124 | if (spapr_drc_type(drc) == SPAPR_DR_CONNECTOR_TYPE_LMB |
f1c52354 | 125 | && !drc->unplug_requested) { |
0dfabd39 | 126 | return RTAS_OUT_HW_ERROR; |
cf632463 BR |
127 | } |
128 | ||
9d4c0f4f | 129 | drc->state = SPAPR_DRC_STATE_LOGICAL_AVAILABLE; |
bbf5c878 | 130 | |
0dfabd39 DG |
131 | /* if we're awaiting release, but still in an unconfigured state, |
132 | * it's likely the guest is still in the process of configuring | |
133 | * the device and is transitioning the devices to an ISOLATED | |
134 | * state as a part of that process. so we only complete the | |
135 | * removal when this transition happens for a device in a | |
136 | * configured state, as suggested by the state diagram from PAPR+ | |
137 | * 2.7, 13.4 | |
138 | */ | |
f1c52354 | 139 | if (drc->unplug_requested) { |
0dfabd39 | 140 | uint32_t drc_index = spapr_drc_index(drc); |
9d4c0f4f DG |
141 | trace_spapr_drc_set_isolation_state_finalizing(drc_index); |
142 | spapr_drc_detach(drc); | |
bbf5c878 | 143 | } |
0dfabd39 DG |
144 | return RTAS_OUT_SUCCESS; |
145 | } | |
146 | ||
147 | static uint32_t drc_unisolate_logical(sPAPRDRConnector *drc) | |
148 | { | |
9d4c0f4f DG |
149 | switch (drc->state) { |
150 | case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: | |
151 | case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: | |
152 | return RTAS_OUT_SUCCESS; /* Nothing to do */ | |
153 | case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: | |
154 | break; /* see below */ | |
155 | case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: | |
156 | return RTAS_OUT_NO_SUCH_INDICATOR; /* not allowed */ | |
157 | default: | |
158 | g_assert_not_reached(); | |
0dfabd39 DG |
159 | } |
160 | ||
9d4c0f4f DG |
161 | /* Move to AVAILABLE state should have ensured device was present */ |
162 | g_assert(drc->dev); | |
bbf5c878 | 163 | |
9d4c0f4f | 164 | drc->state = SPAPR_DRC_STATE_LOGICAL_UNISOLATE; |
4445b1d2 DG |
165 | drc->ccs_offset = drc->fdt_start_offset; |
166 | drc->ccs_depth = 0; | |
167 | ||
0cb688d2 | 168 | return RTAS_OUT_SUCCESS; |
bbf5c878 MR |
169 | } |
170 | ||
61736732 | 171 | static uint32_t drc_set_usable(sPAPRDRConnector *drc) |
bbf5c878 | 172 | { |
9d4c0f4f DG |
173 | switch (drc->state) { |
174 | case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: | |
175 | case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: | |
176 | case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: | |
177 | return RTAS_OUT_SUCCESS; /* Nothing to do */ | |
178 | case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: | |
179 | break; /* see below */ | |
180 | default: | |
181 | g_assert_not_reached(); | |
182 | } | |
183 | ||
61736732 DG |
184 | /* if there's no resource/device associated with the DRC, there's |
185 | * no way for us to put it in an allocation state consistent with | |
186 | * being 'USABLE'. PAPR 2.7, 13.5.3.4 documents that this should | |
187 | * result in an RTAS return code of -3 / "no such indicator" | |
188 | */ | |
189 | if (!drc->dev) { | |
190 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
191 | } | |
f1c52354 | 192 | if (drc->unplug_requested) { |
82a93a1d DG |
193 | /* Don't allow the guest to move a device away from UNUSABLE |
194 | * state when we want to unplug it */ | |
61736732 | 195 | return RTAS_OUT_NO_SUCH_INDICATOR; |
9d1852ce MR |
196 | } |
197 | ||
9d4c0f4f | 198 | drc->state = SPAPR_DRC_STATE_LOGICAL_AVAILABLE; |
61736732 DG |
199 | |
200 | return RTAS_OUT_SUCCESS; | |
201 | } | |
202 | ||
203 | static uint32_t drc_set_unusable(sPAPRDRConnector *drc) | |
204 | { | |
9d4c0f4f DG |
205 | switch (drc->state) { |
206 | case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: | |
207 | return RTAS_OUT_SUCCESS; /* Nothing to do */ | |
208 | case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: | |
209 | break; /* see below */ | |
210 | case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: | |
211 | case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: | |
212 | return RTAS_OUT_NO_SUCH_INDICATOR; /* not allowed */ | |
213 | default: | |
214 | g_assert_not_reached(); | |
215 | } | |
216 | ||
217 | drc->state = SPAPR_DRC_STATE_LOGICAL_UNUSABLE; | |
f1c52354 | 218 | if (drc->unplug_requested) { |
61736732 DG |
219 | uint32_t drc_index = spapr_drc_index(drc); |
220 | trace_spapr_drc_set_allocation_state_finalizing(drc_index); | |
a8dc47fd | 221 | spapr_drc_detach(drc); |
bbf5c878 | 222 | } |
61736732 | 223 | |
0cb688d2 | 224 | return RTAS_OUT_SUCCESS; |
bbf5c878 MR |
225 | } |
226 | ||
79808336 | 227 | static const char *spapr_drc_name(sPAPRDRConnector *drc) |
bbf5c878 | 228 | { |
79808336 DG |
229 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
230 | ||
231 | /* human-readable name for a DRC to encode into the DT | |
232 | * description. this is mainly only used within a guest in place | |
233 | * of the unique DRC index. | |
234 | * | |
235 | * in the case of VIO/PCI devices, it corresponds to a "location | |
236 | * code" that maps a logical device/function (DRC index) to a | |
237 | * physical (or virtual in the case of VIO) location in the system | |
238 | * by chaining together the "location label" for each | |
239 | * encapsulating component. | |
240 | * | |
241 | * since this is more to do with diagnosing physical hardware | |
242 | * issues than guest compatibility, we choose location codes/DRC | |
243 | * names that adhere to the documented format, but avoid encoding | |
244 | * the entire topology information into the label/code, instead | |
245 | * just using the location codes based on the labels for the | |
246 | * endpoints (VIO/PCI adaptor connectors), which is basically just | |
247 | * "C" followed by an integer ID. | |
248 | * | |
249 | * DRC names as documented by PAPR+ v2.7, 13.5.2.4 | |
250 | * location codes as documented by PAPR+ v2.7, 12.3.1.5 | |
251 | */ | |
252 | return g_strdup_printf("%s%d", drck->drc_name_prefix, drc->id); | |
bbf5c878 MR |
253 | } |
254 | ||
bbf5c878 MR |
255 | /* |
256 | * dr-entity-sense sensor value | |
257 | * returned via get-sensor-state RTAS calls | |
258 | * as expected by state diagram in PAPR+ 2.7, 13.4 | |
259 | * based on the current allocation/indicator/power states | |
260 | * for the DR connector. | |
261 | */ | |
f224d35b | 262 | static sPAPRDREntitySense physical_entity_sense(sPAPRDRConnector *drc) |
bbf5c878 | 263 | { |
f224d35b DG |
264 | /* this assumes all PCI devices are assigned to a 'live insertion' |
265 | * power domain, where QEMU manages power state automatically as | |
266 | * opposed to the guest. present, non-PCI resources are unaffected | |
267 | * by power state. | |
268 | */ | |
269 | return drc->dev ? SPAPR_DR_ENTITY_SENSE_PRESENT | |
270 | : SPAPR_DR_ENTITY_SENSE_EMPTY; | |
271 | } | |
272 | ||
273 | static sPAPRDREntitySense logical_entity_sense(sPAPRDRConnector *drc) | |
274 | { | |
9d4c0f4f DG |
275 | switch (drc->state) { |
276 | case SPAPR_DRC_STATE_LOGICAL_UNUSABLE: | |
f224d35b | 277 | return SPAPR_DR_ENTITY_SENSE_UNUSABLE; |
9d4c0f4f DG |
278 | case SPAPR_DRC_STATE_LOGICAL_AVAILABLE: |
279 | case SPAPR_DRC_STATE_LOGICAL_UNISOLATE: | |
280 | case SPAPR_DRC_STATE_LOGICAL_CONFIGURED: | |
281 | g_assert(drc->dev); | |
282 | return SPAPR_DR_ENTITY_SENSE_PRESENT; | |
283 | default: | |
284 | g_assert_not_reached(); | |
bbf5c878 | 285 | } |
bbf5c878 MR |
286 | } |
287 | ||
d7bce999 EB |
288 | static void prop_get_index(Object *obj, Visitor *v, const char *name, |
289 | void *opaque, Error **errp) | |
bbf5c878 MR |
290 | { |
291 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
0b55aa91 | 292 | uint32_t value = spapr_drc_index(drc); |
51e72bc1 | 293 | visit_type_uint32(v, name, &value, errp); |
bbf5c878 MR |
294 | } |
295 | ||
d7bce999 EB |
296 | static void prop_get_fdt(Object *obj, Visitor *v, const char *name, |
297 | void *opaque, Error **errp) | |
bbf5c878 MR |
298 | { |
299 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
d2f95f4d | 300 | QNull *null = NULL; |
c75304a1 | 301 | Error *err = NULL; |
bbf5c878 MR |
302 | int fdt_offset_next, fdt_offset, fdt_depth; |
303 | void *fdt; | |
304 | ||
305 | if (!drc->fdt) { | |
d2f95f4d MA |
306 | visit_type_null(v, NULL, &null, errp); |
307 | QDECREF(null); | |
bbf5c878 MR |
308 | return; |
309 | } | |
310 | ||
311 | fdt = drc->fdt; | |
312 | fdt_offset = drc->fdt_start_offset; | |
313 | fdt_depth = 0; | |
314 | ||
315 | do { | |
316 | const char *name = NULL; | |
317 | const struct fdt_property *prop = NULL; | |
318 | int prop_len = 0, name_len = 0; | |
319 | uint32_t tag; | |
320 | ||
321 | tag = fdt_next_tag(fdt, fdt_offset, &fdt_offset_next); | |
322 | switch (tag) { | |
323 | case FDT_BEGIN_NODE: | |
324 | fdt_depth++; | |
325 | name = fdt_get_name(fdt, fdt_offset, &name_len); | |
337283df | 326 | visit_start_struct(v, name, NULL, 0, &err); |
c75304a1 MA |
327 | if (err) { |
328 | error_propagate(errp, err); | |
329 | return; | |
330 | } | |
bbf5c878 MR |
331 | break; |
332 | case FDT_END_NODE: | |
333 | /* shouldn't ever see an FDT_END_NODE before FDT_BEGIN_NODE */ | |
334 | g_assert(fdt_depth > 0); | |
15c2f669 | 335 | visit_check_struct(v, &err); |
1158bb2a | 336 | visit_end_struct(v, NULL); |
c75304a1 MA |
337 | if (err) { |
338 | error_propagate(errp, err); | |
339 | return; | |
340 | } | |
bbf5c878 MR |
341 | fdt_depth--; |
342 | break; | |
343 | case FDT_PROP: { | |
344 | int i; | |
345 | prop = fdt_get_property_by_offset(fdt, fdt_offset, &prop_len); | |
346 | name = fdt_string(fdt, fdt32_to_cpu(prop->nameoff)); | |
d9f62dde | 347 | visit_start_list(v, name, NULL, 0, &err); |
c75304a1 MA |
348 | if (err) { |
349 | error_propagate(errp, err); | |
350 | return; | |
351 | } | |
bbf5c878 | 352 | for (i = 0; i < prop_len; i++) { |
51e72bc1 | 353 | visit_type_uint8(v, NULL, (uint8_t *)&prop->data[i], &err); |
c75304a1 MA |
354 | if (err) { |
355 | error_propagate(errp, err); | |
356 | return; | |
357 | } | |
358 | } | |
a4a1c70d | 359 | visit_check_list(v, &err); |
1158bb2a | 360 | visit_end_list(v, NULL); |
a4a1c70d MA |
361 | if (err) { |
362 | error_propagate(errp, err); | |
363 | return; | |
364 | } | |
bbf5c878 MR |
365 | break; |
366 | } | |
367 | default: | |
368 | error_setg(&error_abort, "device FDT in unexpected state: %d", tag); | |
369 | } | |
370 | fdt_offset = fdt_offset_next; | |
371 | } while (fdt_depth != 0); | |
372 | } | |
373 | ||
0be4e886 | 374 | void spapr_drc_attach(sPAPRDRConnector *drc, DeviceState *d, void *fdt, |
5c1da812 | 375 | int fdt_start_offset, Error **errp) |
bbf5c878 | 376 | { |
0b55aa91 | 377 | trace_spapr_drc_attach(spapr_drc_index(drc)); |
bbf5c878 | 378 | |
9d4c0f4f | 379 | if (drc->dev) { |
bbf5c878 MR |
380 | error_setg(errp, "an attached device is still awaiting release"); |
381 | return; | |
382 | } | |
9d4c0f4f DG |
383 | g_assert((drc->state == SPAPR_DRC_STATE_LOGICAL_UNUSABLE) |
384 | || (drc->state == SPAPR_DRC_STATE_PHYSICAL_POWERON)); | |
5c1da812 | 385 | g_assert(fdt); |
bbf5c878 | 386 | |
bbf5c878 MR |
387 | drc->dev = d; |
388 | drc->fdt = fdt; | |
389 | drc->fdt_start_offset = fdt_start_offset; | |
bbf5c878 MR |
390 | |
391 | object_property_add_link(OBJECT(drc), "device", | |
392 | object_get_typename(OBJECT(drc->dev)), | |
393 | (Object **)(&drc->dev), | |
394 | NULL, 0, NULL); | |
395 | } | |
396 | ||
9c914e53 | 397 | static void spapr_drc_release(sPAPRDRConnector *drc) |
bbf5c878 | 398 | { |
6b762f29 DG |
399 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
400 | ||
401 | drck->release(drc->dev); | |
bbf5c878 | 402 | |
f1c52354 | 403 | drc->unplug_requested = false; |
bbf5c878 MR |
404 | g_free(drc->fdt); |
405 | drc->fdt = NULL; | |
406 | drc->fdt_start_offset = 0; | |
ba50822f | 407 | object_property_del(OBJECT(drc), "device", &error_abort); |
bbf5c878 | 408 | drc->dev = NULL; |
bbf5c878 MR |
409 | } |
410 | ||
a8dc47fd | 411 | void spapr_drc_detach(sPAPRDRConnector *drc) |
9c914e53 | 412 | { |
9d4c0f4f DG |
413 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
414 | ||
9c914e53 DG |
415 | trace_spapr_drc_detach(spapr_drc_index(drc)); |
416 | ||
9d4c0f4f | 417 | g_assert(drc->dev); |
a8dc47fd | 418 | |
9d4c0f4f | 419 | drc->unplug_requested = true; |
9c914e53 | 420 | |
9d4c0f4f DG |
421 | if (drc->state != drck->empty_state) { |
422 | trace_spapr_drc_awaiting_quiesce(spapr_drc_index(drc)); | |
9c914e53 DG |
423 | return; |
424 | } | |
425 | ||
9c914e53 DG |
426 | spapr_drc_release(drc); |
427 | } | |
428 | ||
94fd9cba | 429 | void spapr_drc_reset(sPAPRDRConnector *drc) |
bbf5c878 | 430 | { |
9d4c0f4f DG |
431 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
432 | ||
0b55aa91 | 433 | trace_spapr_drc_reset(spapr_drc_index(drc)); |
b8fdd530 | 434 | |
bbf5c878 | 435 | /* immediately upon reset we can safely assume DRCs whose devices |
4f9242fc | 436 | * are pending removal can be safely removed. |
bbf5c878 | 437 | */ |
f1c52354 | 438 | if (drc->unplug_requested) { |
4f9242fc DG |
439 | spapr_drc_release(drc); |
440 | } | |
441 | ||
4f9242fc | 442 | if (drc->dev) { |
9d4c0f4f DG |
443 | /* A device present at reset is ready to go, same as coldplugged */ |
444 | drc->state = drck->ready_state; | |
188bfe1b BR |
445 | /* |
446 | * Ensure that we are able to send the FDT fragment again | |
447 | * via configure-connector call if the guest requests. | |
448 | */ | |
449 | drc->ccs_offset = drc->fdt_start_offset; | |
450 | drc->ccs_depth = 0; | |
4f9242fc | 451 | } else { |
9d4c0f4f | 452 | drc->state = drck->empty_state; |
188bfe1b BR |
453 | drc->ccs_offset = -1; |
454 | drc->ccs_depth = -1; | |
bbf5c878 MR |
455 | } |
456 | } | |
457 | ||
94fd9cba LV |
458 | static void drc_reset(void *opaque) |
459 | { | |
460 | spapr_drc_reset(SPAPR_DR_CONNECTOR(opaque)); | |
461 | } | |
462 | ||
62695f60 | 463 | bool spapr_drc_needed(void *opaque) |
a50919dd DHB |
464 | { |
465 | sPAPRDRConnector *drc = (sPAPRDRConnector *)opaque; | |
466 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
f224d35b | 467 | sPAPRDREntitySense value = drck->dr_entity_sense(drc); |
a50919dd DHB |
468 | |
469 | /* If no dev is plugged in there is no need to migrate the DRC state */ | |
470 | if (value != SPAPR_DR_ENTITY_SENSE_PRESENT) { | |
471 | return false; | |
472 | } | |
473 | ||
474 | /* | |
9d4c0f4f DG |
475 | * We need to migrate the state if it's not equal to the expected |
476 | * long-term state, which is the same as the coldplugged initial | |
477 | * state */ | |
478 | return (drc->state != drck->ready_state); | |
a50919dd DHB |
479 | } |
480 | ||
481 | static const VMStateDescription vmstate_spapr_drc = { | |
482 | .name = "spapr_drc", | |
483 | .version_id = 1, | |
484 | .minimum_version_id = 1, | |
485 | .needed = spapr_drc_needed, | |
486 | .fields = (VMStateField []) { | |
9d4c0f4f | 487 | VMSTATE_UINT32(state, sPAPRDRConnector), |
a50919dd DHB |
488 | VMSTATE_END_OF_LIST() |
489 | } | |
490 | }; | |
491 | ||
bbf5c878 MR |
492 | static void realize(DeviceState *d, Error **errp) |
493 | { | |
494 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d); | |
bbf5c878 MR |
495 | Object *root_container; |
496 | char link_name[256]; | |
497 | gchar *child_name; | |
498 | Error *err = NULL; | |
499 | ||
0b55aa91 | 500 | trace_spapr_drc_realize(spapr_drc_index(drc)); |
bbf5c878 MR |
501 | /* NOTE: we do this as part of realize/unrealize due to the fact |
502 | * that the guest will communicate with the DRC via RTAS calls | |
503 | * referencing the global DRC index. By unlinking the DRC | |
504 | * from DRC_CONTAINER_PATH/<drc_index> we effectively make it | |
505 | * inaccessible by the guest, since lookups rely on this path | |
506 | * existing in the composition tree | |
507 | */ | |
508 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); | |
0b55aa91 | 509 | snprintf(link_name, sizeof(link_name), "%x", spapr_drc_index(drc)); |
bbf5c878 | 510 | child_name = object_get_canonical_path_component(OBJECT(drc)); |
0b55aa91 | 511 | trace_spapr_drc_realize_child(spapr_drc_index(drc), child_name); |
bbf5c878 MR |
512 | object_property_add_alias(root_container, link_name, |
513 | drc->owner, child_name, &err); | |
bf26ae32 | 514 | g_free(child_name); |
bbf5c878 | 515 | if (err) { |
bf26ae32 GK |
516 | error_propagate(errp, err); |
517 | return; | |
bbf5c878 | 518 | } |
0b55aa91 | 519 | vmstate_register(DEVICE(drc), spapr_drc_index(drc), &vmstate_spapr_drc, |
a50919dd | 520 | drc); |
6caf3ac6 | 521 | qemu_register_reset(drc_reset, drc); |
0b55aa91 | 522 | trace_spapr_drc_realize_complete(spapr_drc_index(drc)); |
bbf5c878 MR |
523 | } |
524 | ||
525 | static void unrealize(DeviceState *d, Error **errp) | |
526 | { | |
527 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d); | |
bbf5c878 MR |
528 | Object *root_container; |
529 | char name[256]; | |
bbf5c878 | 530 | |
0b55aa91 | 531 | trace_spapr_drc_unrealize(spapr_drc_index(drc)); |
bf26ae32 GK |
532 | qemu_unregister_reset(drc_reset, drc); |
533 | vmstate_unregister(DEVICE(drc), &vmstate_spapr_drc, drc); | |
bbf5c878 | 534 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); |
0b55aa91 | 535 | snprintf(name, sizeof(name), "%x", spapr_drc_index(drc)); |
bf26ae32 | 536 | object_property_del(root_container, name, errp); |
bbf5c878 MR |
537 | } |
538 | ||
2d335818 | 539 | sPAPRDRConnector *spapr_dr_connector_new(Object *owner, const char *type, |
bbf5c878 MR |
540 | uint32_t id) |
541 | { | |
2d335818 | 542 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(object_new(type)); |
94649d42 | 543 | char *prop_name; |
bbf5c878 | 544 | |
bbf5c878 MR |
545 | drc->id = id; |
546 | drc->owner = owner; | |
0b55aa91 DG |
547 | prop_name = g_strdup_printf("dr-connector[%"PRIu32"]", |
548 | spapr_drc_index(drc)); | |
325837ca | 549 | object_property_add_child(owner, prop_name, OBJECT(drc), &error_abort); |
bbf5c878 | 550 | object_property_set_bool(OBJECT(drc), true, "realized", NULL); |
94649d42 | 551 | g_free(prop_name); |
bbf5c878 | 552 | |
bbf5c878 MR |
553 | return drc; |
554 | } | |
555 | ||
556 | static void spapr_dr_connector_instance_init(Object *obj) | |
557 | { | |
558 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
9d4c0f4f | 559 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
bbf5c878 | 560 | |
bbf5c878 MR |
561 | object_property_add_uint32_ptr(obj, "id", &drc->id, NULL); |
562 | object_property_add(obj, "index", "uint32", prop_get_index, | |
563 | NULL, NULL, NULL, NULL); | |
bbf5c878 MR |
564 | object_property_add(obj, "fdt", "struct", prop_get_fdt, |
565 | NULL, NULL, NULL, NULL); | |
9d4c0f4f | 566 | drc->state = drck->empty_state; |
bbf5c878 MR |
567 | } |
568 | ||
569 | static void spapr_dr_connector_class_init(ObjectClass *k, void *data) | |
570 | { | |
571 | DeviceClass *dk = DEVICE_CLASS(k); | |
bbf5c878 | 572 | |
bbf5c878 MR |
573 | dk->realize = realize; |
574 | dk->unrealize = unrealize; | |
c401ae8c MA |
575 | /* |
576 | * Reason: it crashes FIXME find and document the real reason | |
577 | */ | |
e90f2a8c | 578 | dk->user_creatable = false; |
bbf5c878 MR |
579 | } |
580 | ||
67fea71b DG |
581 | static bool drc_physical_needed(void *opaque) |
582 | { | |
583 | sPAPRDRCPhysical *drcp = (sPAPRDRCPhysical *)opaque; | |
584 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(drcp); | |
585 | ||
586 | if ((drc->dev && (drcp->dr_indicator == SPAPR_DR_INDICATOR_ACTIVE)) | |
587 | || (!drc->dev && (drcp->dr_indicator == SPAPR_DR_INDICATOR_INACTIVE))) { | |
588 | return false; | |
589 | } | |
590 | return true; | |
591 | } | |
592 | ||
593 | static const VMStateDescription vmstate_spapr_drc_physical = { | |
594 | .name = "spapr_drc/physical", | |
595 | .version_id = 1, | |
596 | .minimum_version_id = 1, | |
597 | .needed = drc_physical_needed, | |
598 | .fields = (VMStateField []) { | |
599 | VMSTATE_UINT32(dr_indicator, sPAPRDRCPhysical), | |
600 | VMSTATE_END_OF_LIST() | |
601 | } | |
602 | }; | |
603 | ||
604 | static void drc_physical_reset(void *opaque) | |
605 | { | |
606 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(opaque); | |
607 | sPAPRDRCPhysical *drcp = SPAPR_DRC_PHYSICAL(drc); | |
608 | ||
609 | if (drc->dev) { | |
610 | drcp->dr_indicator = SPAPR_DR_INDICATOR_ACTIVE; | |
611 | } else { | |
612 | drcp->dr_indicator = SPAPR_DR_INDICATOR_INACTIVE; | |
613 | } | |
614 | } | |
615 | ||
616 | static void realize_physical(DeviceState *d, Error **errp) | |
617 | { | |
618 | sPAPRDRCPhysical *drcp = SPAPR_DRC_PHYSICAL(d); | |
619 | Error *local_err = NULL; | |
620 | ||
621 | realize(d, &local_err); | |
622 | if (local_err) { | |
623 | error_propagate(errp, local_err); | |
624 | return; | |
625 | } | |
626 | ||
627 | vmstate_register(DEVICE(drcp), spapr_drc_index(SPAPR_DR_CONNECTOR(drcp)), | |
628 | &vmstate_spapr_drc_physical, drcp); | |
629 | qemu_register_reset(drc_physical_reset, drcp); | |
630 | } | |
631 | ||
f224d35b DG |
632 | static void spapr_drc_physical_class_init(ObjectClass *k, void *data) |
633 | { | |
67fea71b | 634 | DeviceClass *dk = DEVICE_CLASS(k); |
f224d35b DG |
635 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); |
636 | ||
67fea71b | 637 | dk->realize = realize_physical; |
f224d35b | 638 | drck->dr_entity_sense = physical_entity_sense; |
0dfabd39 DG |
639 | drck->isolate = drc_isolate_physical; |
640 | drck->unisolate = drc_unisolate_physical; | |
9d4c0f4f DG |
641 | drck->ready_state = SPAPR_DRC_STATE_PHYSICAL_CONFIGURED; |
642 | drck->empty_state = SPAPR_DRC_STATE_PHYSICAL_POWERON; | |
f224d35b DG |
643 | } |
644 | ||
645 | static void spapr_drc_logical_class_init(ObjectClass *k, void *data) | |
646 | { | |
647 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
648 | ||
649 | drck->dr_entity_sense = logical_entity_sense; | |
0dfabd39 DG |
650 | drck->isolate = drc_isolate_logical; |
651 | drck->unisolate = drc_unisolate_logical; | |
9d4c0f4f DG |
652 | drck->ready_state = SPAPR_DRC_STATE_LOGICAL_CONFIGURED; |
653 | drck->empty_state = SPAPR_DRC_STATE_LOGICAL_UNUSABLE; | |
f224d35b DG |
654 | } |
655 | ||
2d335818 DG |
656 | static void spapr_drc_cpu_class_init(ObjectClass *k, void *data) |
657 | { | |
658 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
659 | ||
660 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_CPU; | |
1693ea16 | 661 | drck->typename = "CPU"; |
79808336 | 662 | drck->drc_name_prefix = "CPU "; |
6b762f29 | 663 | drck->release = spapr_core_release; |
2d335818 DG |
664 | } |
665 | ||
666 | static void spapr_drc_pci_class_init(ObjectClass *k, void *data) | |
667 | { | |
668 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
669 | ||
670 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_PCI; | |
1693ea16 | 671 | drck->typename = "28"; |
79808336 | 672 | drck->drc_name_prefix = "C"; |
6b762f29 | 673 | drck->release = spapr_phb_remove_pci_device_cb; |
2d335818 DG |
674 | } |
675 | ||
676 | static void spapr_drc_lmb_class_init(ObjectClass *k, void *data) | |
677 | { | |
678 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
679 | ||
680 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_LMB; | |
1693ea16 | 681 | drck->typename = "MEM"; |
79808336 | 682 | drck->drc_name_prefix = "LMB "; |
6b762f29 | 683 | drck->release = spapr_lmb_release; |
2d335818 DG |
684 | } |
685 | ||
bbf5c878 MR |
686 | static const TypeInfo spapr_dr_connector_info = { |
687 | .name = TYPE_SPAPR_DR_CONNECTOR, | |
688 | .parent = TYPE_DEVICE, | |
689 | .instance_size = sizeof(sPAPRDRConnector), | |
690 | .instance_init = spapr_dr_connector_instance_init, | |
691 | .class_size = sizeof(sPAPRDRConnectorClass), | |
692 | .class_init = spapr_dr_connector_class_init, | |
2d335818 DG |
693 | .abstract = true, |
694 | }; | |
695 | ||
696 | static const TypeInfo spapr_drc_physical_info = { | |
697 | .name = TYPE_SPAPR_DRC_PHYSICAL, | |
698 | .parent = TYPE_SPAPR_DR_CONNECTOR, | |
67fea71b | 699 | .instance_size = sizeof(sPAPRDRCPhysical), |
f224d35b | 700 | .class_init = spapr_drc_physical_class_init, |
2d335818 DG |
701 | .abstract = true, |
702 | }; | |
703 | ||
704 | static const TypeInfo spapr_drc_logical_info = { | |
705 | .name = TYPE_SPAPR_DRC_LOGICAL, | |
706 | .parent = TYPE_SPAPR_DR_CONNECTOR, | |
f224d35b | 707 | .class_init = spapr_drc_logical_class_init, |
2d335818 DG |
708 | .abstract = true, |
709 | }; | |
710 | ||
711 | static const TypeInfo spapr_drc_cpu_info = { | |
712 | .name = TYPE_SPAPR_DRC_CPU, | |
713 | .parent = TYPE_SPAPR_DRC_LOGICAL, | |
2d335818 DG |
714 | .class_init = spapr_drc_cpu_class_init, |
715 | }; | |
716 | ||
717 | static const TypeInfo spapr_drc_pci_info = { | |
718 | .name = TYPE_SPAPR_DRC_PCI, | |
719 | .parent = TYPE_SPAPR_DRC_PHYSICAL, | |
2d335818 DG |
720 | .class_init = spapr_drc_pci_class_init, |
721 | }; | |
722 | ||
723 | static const TypeInfo spapr_drc_lmb_info = { | |
724 | .name = TYPE_SPAPR_DRC_LMB, | |
725 | .parent = TYPE_SPAPR_DRC_LOGICAL, | |
2d335818 | 726 | .class_init = spapr_drc_lmb_class_init, |
bbf5c878 MR |
727 | }; |
728 | ||
bbf5c878 MR |
729 | /* helper functions for external users */ |
730 | ||
fbf55397 | 731 | sPAPRDRConnector *spapr_drc_by_index(uint32_t index) |
bbf5c878 MR |
732 | { |
733 | Object *obj; | |
734 | char name[256]; | |
735 | ||
736 | snprintf(name, sizeof(name), "%s/%x", DRC_CONTAINER_PATH, index); | |
737 | obj = object_resolve_path(name, NULL); | |
738 | ||
739 | return !obj ? NULL : SPAPR_DR_CONNECTOR(obj); | |
740 | } | |
741 | ||
fbf55397 | 742 | sPAPRDRConnector *spapr_drc_by_id(const char *type, uint32_t id) |
bbf5c878 | 743 | { |
fbf55397 DG |
744 | sPAPRDRConnectorClass *drck |
745 | = SPAPR_DR_CONNECTOR_CLASS(object_class_by_name(type)); | |
746 | ||
747 | return spapr_drc_by_index(drck->typeshift << DRC_INDEX_TYPE_SHIFT | |
748 | | (id & DRC_INDEX_ID_MASK)); | |
bbf5c878 | 749 | } |
e4b798bb | 750 | |
e4b798bb MR |
751 | /** |
752 | * spapr_drc_populate_dt | |
753 | * | |
754 | * @fdt: libfdt device tree | |
755 | * @path: path in the DT to generate properties | |
756 | * @owner: parent Object/DeviceState for which to generate DRC | |
757 | * descriptions for | |
758 | * @drc_type_mask: mask of sPAPRDRConnectorType values corresponding | |
759 | * to the types of DRCs to generate entries for | |
760 | * | |
761 | * generate OF properties to describe DRC topology/indices to guests | |
762 | * | |
763 | * as documented in PAPR+ v2.1, 13.5.2 | |
764 | */ | |
765 | int spapr_drc_populate_dt(void *fdt, int fdt_offset, Object *owner, | |
766 | uint32_t drc_type_mask) | |
767 | { | |
768 | Object *root_container; | |
769 | ObjectProperty *prop; | |
7746abd8 | 770 | ObjectPropertyIterator iter; |
e4b798bb MR |
771 | uint32_t drc_count = 0; |
772 | GArray *drc_indexes, *drc_power_domains; | |
773 | GString *drc_names, *drc_types; | |
774 | int ret; | |
775 | ||
776 | /* the first entry of each properties is a 32-bit integer encoding | |
777 | * the number of elements in the array. we won't know this until | |
778 | * we complete the iteration through all the matching DRCs, but | |
779 | * reserve the space now and set the offsets accordingly so we | |
780 | * can fill them in later. | |
781 | */ | |
782 | drc_indexes = g_array_new(false, true, sizeof(uint32_t)); | |
783 | drc_indexes = g_array_set_size(drc_indexes, 1); | |
784 | drc_power_domains = g_array_new(false, true, sizeof(uint32_t)); | |
785 | drc_power_domains = g_array_set_size(drc_power_domains, 1); | |
786 | drc_names = g_string_set_size(g_string_new(NULL), sizeof(uint32_t)); | |
787 | drc_types = g_string_set_size(g_string_new(NULL), sizeof(uint32_t)); | |
788 | ||
789 | /* aliases for all DRConnector objects will be rooted in QOM | |
790 | * composition tree at DRC_CONTAINER_PATH | |
791 | */ | |
792 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); | |
793 | ||
7746abd8 DB |
794 | object_property_iter_init(&iter, root_container); |
795 | while ((prop = object_property_iter_next(&iter))) { | |
e4b798bb MR |
796 | Object *obj; |
797 | sPAPRDRConnector *drc; | |
798 | sPAPRDRConnectorClass *drck; | |
799 | uint32_t drc_index, drc_power_domain; | |
800 | ||
801 | if (!strstart(prop->type, "link<", NULL)) { | |
802 | continue; | |
803 | } | |
804 | ||
805 | obj = object_property_get_link(root_container, prop->name, NULL); | |
806 | drc = SPAPR_DR_CONNECTOR(obj); | |
807 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
808 | ||
809 | if (owner && (drc->owner != owner)) { | |
810 | continue; | |
811 | } | |
812 | ||
2d335818 | 813 | if ((spapr_drc_type(drc) & drc_type_mask) == 0) { |
e4b798bb MR |
814 | continue; |
815 | } | |
816 | ||
817 | drc_count++; | |
818 | ||
819 | /* ibm,drc-indexes */ | |
0b55aa91 | 820 | drc_index = cpu_to_be32(spapr_drc_index(drc)); |
e4b798bb MR |
821 | g_array_append_val(drc_indexes, drc_index); |
822 | ||
823 | /* ibm,drc-power-domains */ | |
824 | drc_power_domain = cpu_to_be32(-1); | |
825 | g_array_append_val(drc_power_domains, drc_power_domain); | |
826 | ||
827 | /* ibm,drc-names */ | |
79808336 | 828 | drc_names = g_string_append(drc_names, spapr_drc_name(drc)); |
e4b798bb MR |
829 | drc_names = g_string_insert_len(drc_names, -1, "\0", 1); |
830 | ||
831 | /* ibm,drc-types */ | |
1693ea16 | 832 | drc_types = g_string_append(drc_types, drck->typename); |
e4b798bb MR |
833 | drc_types = g_string_insert_len(drc_types, -1, "\0", 1); |
834 | } | |
835 | ||
836 | /* now write the drc count into the space we reserved at the | |
837 | * beginning of the arrays previously | |
838 | */ | |
839 | *(uint32_t *)drc_indexes->data = cpu_to_be32(drc_count); | |
840 | *(uint32_t *)drc_power_domains->data = cpu_to_be32(drc_count); | |
841 | *(uint32_t *)drc_names->str = cpu_to_be32(drc_count); | |
842 | *(uint32_t *)drc_types->str = cpu_to_be32(drc_count); | |
843 | ||
844 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-indexes", | |
845 | drc_indexes->data, | |
846 | drc_indexes->len * sizeof(uint32_t)); | |
847 | if (ret) { | |
ce9863b7 | 848 | error_report("Couldn't create ibm,drc-indexes property"); |
e4b798bb MR |
849 | goto out; |
850 | } | |
851 | ||
852 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-power-domains", | |
853 | drc_power_domains->data, | |
854 | drc_power_domains->len * sizeof(uint32_t)); | |
855 | if (ret) { | |
ce9863b7 | 856 | error_report("Couldn't finalize ibm,drc-power-domains property"); |
e4b798bb MR |
857 | goto out; |
858 | } | |
859 | ||
860 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-names", | |
861 | drc_names->str, drc_names->len); | |
862 | if (ret) { | |
ce9863b7 | 863 | error_report("Couldn't finalize ibm,drc-names property"); |
e4b798bb MR |
864 | goto out; |
865 | } | |
866 | ||
867 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-types", | |
868 | drc_types->str, drc_types->len); | |
869 | if (ret) { | |
ce9863b7 | 870 | error_report("Couldn't finalize ibm,drc-types property"); |
e4b798bb MR |
871 | goto out; |
872 | } | |
873 | ||
874 | out: | |
875 | g_array_free(drc_indexes, true); | |
876 | g_array_free(drc_power_domains, true); | |
877 | g_string_free(drc_names, true); | |
878 | g_string_free(drc_types, true); | |
879 | ||
880 | return ret; | |
881 | } | |
b89b3d39 DG |
882 | |
883 | /* | |
884 | * RTAS calls | |
885 | */ | |
886 | ||
7b7258f8 | 887 | static uint32_t rtas_set_isolation_state(uint32_t idx, uint32_t state) |
b89b3d39 | 888 | { |
7b7258f8 DG |
889 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); |
890 | sPAPRDRConnectorClass *drck; | |
891 | ||
892 | if (!drc) { | |
0dfabd39 | 893 | return RTAS_OUT_NO_SUCH_INDICATOR; |
b89b3d39 DG |
894 | } |
895 | ||
0dfabd39 DG |
896 | trace_spapr_drc_set_isolation_state(spapr_drc_index(drc), state); |
897 | ||
7b7258f8 | 898 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
0dfabd39 DG |
899 | |
900 | switch (state) { | |
901 | case SPAPR_DR_ISOLATION_STATE_ISOLATED: | |
902 | return drck->isolate(drc); | |
903 | ||
904 | case SPAPR_DR_ISOLATION_STATE_UNISOLATED: | |
905 | return drck->unisolate(drc); | |
906 | ||
907 | default: | |
908 | return RTAS_OUT_PARAM_ERROR; | |
909 | } | |
b89b3d39 DG |
910 | } |
911 | ||
7b7258f8 | 912 | static uint32_t rtas_set_allocation_state(uint32_t idx, uint32_t state) |
b89b3d39 | 913 | { |
7b7258f8 | 914 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); |
b89b3d39 | 915 | |
61736732 DG |
916 | if (!drc || !object_dynamic_cast(OBJECT(drc), TYPE_SPAPR_DRC_LOGICAL)) { |
917 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
b89b3d39 DG |
918 | } |
919 | ||
61736732 DG |
920 | trace_spapr_drc_set_allocation_state(spapr_drc_index(drc), state); |
921 | ||
922 | switch (state) { | |
923 | case SPAPR_DR_ALLOCATION_STATE_USABLE: | |
924 | return drc_set_usable(drc); | |
925 | ||
926 | case SPAPR_DR_ALLOCATION_STATE_UNUSABLE: | |
927 | return drc_set_unusable(drc); | |
928 | ||
929 | default: | |
930 | return RTAS_OUT_PARAM_ERROR; | |
931 | } | |
7b7258f8 | 932 | } |
b89b3d39 | 933 | |
cd74d27e | 934 | static uint32_t rtas_set_dr_indicator(uint32_t idx, uint32_t state) |
7b7258f8 DG |
935 | { |
936 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); | |
b89b3d39 | 937 | |
67fea71b DG |
938 | if (!drc || !object_dynamic_cast(OBJECT(drc), TYPE_SPAPR_DRC_PHYSICAL)) { |
939 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
940 | } | |
941 | if ((state != SPAPR_DR_INDICATOR_INACTIVE) | |
942 | && (state != SPAPR_DR_INDICATOR_ACTIVE) | |
943 | && (state != SPAPR_DR_INDICATOR_IDENTIFY) | |
944 | && (state != SPAPR_DR_INDICATOR_ACTION)) { | |
945 | return RTAS_OUT_PARAM_ERROR; /* bad state parameter */ | |
7b7258f8 DG |
946 | } |
947 | ||
cd74d27e | 948 | trace_spapr_drc_set_dr_indicator(idx, state); |
67fea71b | 949 | SPAPR_DRC_PHYSICAL(drc)->dr_indicator = state; |
cd74d27e | 950 | return RTAS_OUT_SUCCESS; |
7b7258f8 DG |
951 | } |
952 | ||
953 | static void rtas_set_indicator(PowerPCCPU *cpu, sPAPRMachineState *spapr, | |
954 | uint32_t token, | |
955 | uint32_t nargs, target_ulong args, | |
956 | uint32_t nret, target_ulong rets) | |
957 | { | |
958 | uint32_t type, idx, state; | |
959 | uint32_t ret = RTAS_OUT_SUCCESS; | |
960 | ||
961 | if (nargs != 3 || nret != 1) { | |
b89b3d39 DG |
962 | ret = RTAS_OUT_PARAM_ERROR; |
963 | goto out; | |
964 | } | |
b89b3d39 | 965 | |
7b7258f8 DG |
966 | type = rtas_ld(args, 0); |
967 | idx = rtas_ld(args, 1); | |
968 | state = rtas_ld(args, 2); | |
969 | ||
970 | switch (type) { | |
b89b3d39 | 971 | case RTAS_SENSOR_TYPE_ISOLATION_STATE: |
7b7258f8 | 972 | ret = rtas_set_isolation_state(idx, state); |
b89b3d39 DG |
973 | break; |
974 | case RTAS_SENSOR_TYPE_DR: | |
cd74d27e | 975 | ret = rtas_set_dr_indicator(idx, state); |
b89b3d39 DG |
976 | break; |
977 | case RTAS_SENSOR_TYPE_ALLOCATION_STATE: | |
7b7258f8 | 978 | ret = rtas_set_allocation_state(idx, state); |
b89b3d39 DG |
979 | break; |
980 | default: | |
7b7258f8 | 981 | ret = RTAS_OUT_NOT_SUPPORTED; |
b89b3d39 DG |
982 | } |
983 | ||
984 | out: | |
985 | rtas_st(rets, 0, ret); | |
b89b3d39 DG |
986 | } |
987 | ||
988 | static void rtas_get_sensor_state(PowerPCCPU *cpu, sPAPRMachineState *spapr, | |
989 | uint32_t token, uint32_t nargs, | |
990 | target_ulong args, uint32_t nret, | |
991 | target_ulong rets) | |
992 | { | |
993 | uint32_t sensor_type; | |
994 | uint32_t sensor_index; | |
995 | uint32_t sensor_state = 0; | |
996 | sPAPRDRConnector *drc; | |
997 | sPAPRDRConnectorClass *drck; | |
998 | uint32_t ret = RTAS_OUT_SUCCESS; | |
999 | ||
1000 | if (nargs != 2 || nret != 2) { | |
1001 | ret = RTAS_OUT_PARAM_ERROR; | |
1002 | goto out; | |
1003 | } | |
1004 | ||
1005 | sensor_type = rtas_ld(args, 0); | |
1006 | sensor_index = rtas_ld(args, 1); | |
1007 | ||
1008 | if (sensor_type != RTAS_SENSOR_TYPE_ENTITY_SENSE) { | |
1009 | /* currently only DR-related sensors are implemented */ | |
1010 | trace_spapr_rtas_get_sensor_state_not_supported(sensor_index, | |
1011 | sensor_type); | |
1012 | ret = RTAS_OUT_NOT_SUPPORTED; | |
1013 | goto out; | |
1014 | } | |
1015 | ||
fbf55397 | 1016 | drc = spapr_drc_by_index(sensor_index); |
b89b3d39 DG |
1017 | if (!drc) { |
1018 | trace_spapr_rtas_get_sensor_state_invalid(sensor_index); | |
1019 | ret = RTAS_OUT_PARAM_ERROR; | |
1020 | goto out; | |
1021 | } | |
1022 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
f224d35b | 1023 | sensor_state = drck->dr_entity_sense(drc); |
b89b3d39 DG |
1024 | |
1025 | out: | |
1026 | rtas_st(rets, 0, ret); | |
1027 | rtas_st(rets, 1, sensor_state); | |
1028 | } | |
1029 | ||
1030 | /* configure-connector work area offsets, int32_t units for field | |
1031 | * indexes, bytes for field offset/len values. | |
1032 | * | |
1033 | * as documented by PAPR+ v2.7, 13.5.3.5 | |
1034 | */ | |
1035 | #define CC_IDX_NODE_NAME_OFFSET 2 | |
1036 | #define CC_IDX_PROP_NAME_OFFSET 2 | |
1037 | #define CC_IDX_PROP_LEN 3 | |
1038 | #define CC_IDX_PROP_DATA_OFFSET 4 | |
1039 | #define CC_VAL_DATA_OFFSET ((CC_IDX_PROP_DATA_OFFSET + 1) * 4) | |
1040 | #define CC_WA_LEN 4096 | |
1041 | ||
1042 | static void configure_connector_st(target_ulong addr, target_ulong offset, | |
1043 | const void *buf, size_t len) | |
1044 | { | |
1045 | cpu_physical_memory_write(ppc64_phys_to_real(addr + offset), | |
1046 | buf, MIN(len, CC_WA_LEN - offset)); | |
1047 | } | |
1048 | ||
b89b3d39 DG |
1049 | static void rtas_ibm_configure_connector(PowerPCCPU *cpu, |
1050 | sPAPRMachineState *spapr, | |
1051 | uint32_t token, uint32_t nargs, | |
1052 | target_ulong args, uint32_t nret, | |
1053 | target_ulong rets) | |
1054 | { | |
1055 | uint64_t wa_addr; | |
1056 | uint64_t wa_offset; | |
1057 | uint32_t drc_index; | |
1058 | sPAPRDRConnector *drc; | |
9d4c0f4f | 1059 | sPAPRDRConnectorClass *drck; |
b89b3d39 DG |
1060 | sPAPRDRCCResponse resp = SPAPR_DR_CC_RESPONSE_CONTINUE; |
1061 | int rc; | |
b89b3d39 DG |
1062 | |
1063 | if (nargs != 2 || nret != 1) { | |
1064 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); | |
1065 | return; | |
1066 | } | |
1067 | ||
1068 | wa_addr = ((uint64_t)rtas_ld(args, 1) << 32) | rtas_ld(args, 0); | |
1069 | ||
1070 | drc_index = rtas_ld(wa_addr, 0); | |
fbf55397 | 1071 | drc = spapr_drc_by_index(drc_index); |
b89b3d39 DG |
1072 | if (!drc) { |
1073 | trace_spapr_rtas_ibm_configure_connector_invalid(drc_index); | |
1074 | rc = RTAS_OUT_PARAM_ERROR; | |
1075 | goto out; | |
1076 | } | |
1077 | ||
9d4c0f4f | 1078 | if ((drc->state != SPAPR_DRC_STATE_LOGICAL_UNISOLATE) |
188bfe1b BR |
1079 | && (drc->state != SPAPR_DRC_STATE_PHYSICAL_UNISOLATE) |
1080 | && (drc->state != SPAPR_DRC_STATE_LOGICAL_CONFIGURED) | |
1081 | && (drc->state != SPAPR_DRC_STATE_PHYSICAL_CONFIGURED)) { | |
1082 | /* | |
1083 | * Need to unisolate the device before configuring | |
1084 | * or it should already be in configured state to | |
1085 | * allow configure-connector be called repeatedly. | |
1086 | */ | |
b89b3d39 DG |
1087 | rc = SPAPR_DR_CC_RESPONSE_NOT_CONFIGURABLE; |
1088 | goto out; | |
1089 | } | |
1090 | ||
9d4c0f4f DG |
1091 | g_assert(drc->fdt); |
1092 | ||
1093 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
1094 | ||
b89b3d39 DG |
1095 | do { |
1096 | uint32_t tag; | |
1097 | const char *name; | |
1098 | const struct fdt_property *prop; | |
1099 | int fdt_offset_next, prop_len; | |
1100 | ||
4445b1d2 | 1101 | tag = fdt_next_tag(drc->fdt, drc->ccs_offset, &fdt_offset_next); |
b89b3d39 DG |
1102 | |
1103 | switch (tag) { | |
1104 | case FDT_BEGIN_NODE: | |
4445b1d2 DG |
1105 | drc->ccs_depth++; |
1106 | name = fdt_get_name(drc->fdt, drc->ccs_offset, NULL); | |
b89b3d39 DG |
1107 | |
1108 | /* provide the name of the next OF node */ | |
1109 | wa_offset = CC_VAL_DATA_OFFSET; | |
1110 | rtas_st(wa_addr, CC_IDX_NODE_NAME_OFFSET, wa_offset); | |
1111 | configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1); | |
1112 | resp = SPAPR_DR_CC_RESPONSE_NEXT_CHILD; | |
1113 | break; | |
1114 | case FDT_END_NODE: | |
4445b1d2 DG |
1115 | drc->ccs_depth--; |
1116 | if (drc->ccs_depth == 0) { | |
0b55aa91 | 1117 | uint32_t drc_index = spapr_drc_index(drc); |
9d4c0f4f DG |
1118 | |
1119 | /* done sending the device tree, move to configured state */ | |
0b55aa91 | 1120 | trace_spapr_drc_set_configured(drc_index); |
9d4c0f4f | 1121 | drc->state = drck->ready_state; |
188bfe1b BR |
1122 | /* |
1123 | * Ensure that we are able to send the FDT fragment | |
1124 | * again via configure-connector call if the guest requests. | |
1125 | */ | |
1126 | drc->ccs_offset = drc->fdt_start_offset; | |
1127 | drc->ccs_depth = 0; | |
1128 | fdt_offset_next = drc->fdt_start_offset; | |
b89b3d39 DG |
1129 | resp = SPAPR_DR_CC_RESPONSE_SUCCESS; |
1130 | } else { | |
1131 | resp = SPAPR_DR_CC_RESPONSE_PREV_PARENT; | |
1132 | } | |
1133 | break; | |
1134 | case FDT_PROP: | |
4445b1d2 | 1135 | prop = fdt_get_property_by_offset(drc->fdt, drc->ccs_offset, |
b89b3d39 | 1136 | &prop_len); |
88af6ea5 | 1137 | name = fdt_string(drc->fdt, fdt32_to_cpu(prop->nameoff)); |
b89b3d39 DG |
1138 | |
1139 | /* provide the name of the next OF property */ | |
1140 | wa_offset = CC_VAL_DATA_OFFSET; | |
1141 | rtas_st(wa_addr, CC_IDX_PROP_NAME_OFFSET, wa_offset); | |
1142 | configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1); | |
1143 | ||
1144 | /* provide the length and value of the OF property. data gets | |
1145 | * placed immediately after NULL terminator of the OF property's | |
1146 | * name string | |
1147 | */ | |
1148 | wa_offset += strlen(name) + 1, | |
1149 | rtas_st(wa_addr, CC_IDX_PROP_LEN, prop_len); | |
1150 | rtas_st(wa_addr, CC_IDX_PROP_DATA_OFFSET, wa_offset); | |
1151 | configure_connector_st(wa_addr, wa_offset, prop->data, prop_len); | |
1152 | resp = SPAPR_DR_CC_RESPONSE_NEXT_PROPERTY; | |
1153 | break; | |
1154 | case FDT_END: | |
1155 | resp = SPAPR_DR_CC_RESPONSE_ERROR; | |
1156 | default: | |
1157 | /* keep seeking for an actionable tag */ | |
1158 | break; | |
1159 | } | |
4445b1d2 DG |
1160 | if (drc->ccs_offset >= 0) { |
1161 | drc->ccs_offset = fdt_offset_next; | |
b89b3d39 DG |
1162 | } |
1163 | } while (resp == SPAPR_DR_CC_RESPONSE_CONTINUE); | |
1164 | ||
1165 | rc = resp; | |
1166 | out: | |
1167 | rtas_st(rets, 0, rc); | |
1168 | } | |
1169 | ||
1170 | static void spapr_drc_register_types(void) | |
1171 | { | |
1172 | type_register_static(&spapr_dr_connector_info); | |
2d335818 DG |
1173 | type_register_static(&spapr_drc_physical_info); |
1174 | type_register_static(&spapr_drc_logical_info); | |
1175 | type_register_static(&spapr_drc_cpu_info); | |
1176 | type_register_static(&spapr_drc_pci_info); | |
1177 | type_register_static(&spapr_drc_lmb_info); | |
b89b3d39 DG |
1178 | |
1179 | spapr_rtas_register(RTAS_SET_INDICATOR, "set-indicator", | |
1180 | rtas_set_indicator); | |
1181 | spapr_rtas_register(RTAS_GET_SENSOR_STATE, "get-sensor-state", | |
1182 | rtas_get_sensor_state); | |
1183 | spapr_rtas_register(RTAS_IBM_CONFIGURE_CONNECTOR, "ibm,configure-connector", | |
1184 | rtas_ibm_configure_connector); | |
1185 | } | |
1186 | type_init(spapr_drc_register_types) |