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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 | ||
10f12e64 | 463 | bool spapr_drc_needed(void *opaque) |
a50919dd DHB |
464 | { |
465 | sPAPRDRConnector *drc = (sPAPRDRConnector *)opaque; | |
466 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
a50919dd DHB |
467 | |
468 | /* If no dev is plugged in there is no need to migrate the DRC state */ | |
c618e300 | 469 | if (!drc->dev) { |
a50919dd DHB |
470 | return false; |
471 | } | |
472 | ||
473 | /* | |
9d4c0f4f DG |
474 | * We need to migrate the state if it's not equal to the expected |
475 | * long-term state, which is the same as the coldplugged initial | |
476 | * state */ | |
477 | return (drc->state != drck->ready_state); | |
a50919dd DHB |
478 | } |
479 | ||
480 | static const VMStateDescription vmstate_spapr_drc = { | |
481 | .name = "spapr_drc", | |
482 | .version_id = 1, | |
483 | .minimum_version_id = 1, | |
484 | .needed = spapr_drc_needed, | |
485 | .fields = (VMStateField []) { | |
9d4c0f4f | 486 | VMSTATE_UINT32(state, sPAPRDRConnector), |
a50919dd DHB |
487 | VMSTATE_END_OF_LIST() |
488 | } | |
489 | }; | |
490 | ||
bbf5c878 MR |
491 | static void realize(DeviceState *d, Error **errp) |
492 | { | |
493 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d); | |
bbf5c878 | 494 | Object *root_container; |
f5babeac | 495 | gchar *link_name; |
bbf5c878 MR |
496 | gchar *child_name; |
497 | Error *err = NULL; | |
498 | ||
0b55aa91 | 499 | trace_spapr_drc_realize(spapr_drc_index(drc)); |
bbf5c878 MR |
500 | /* NOTE: we do this as part of realize/unrealize due to the fact |
501 | * that the guest will communicate with the DRC via RTAS calls | |
502 | * referencing the global DRC index. By unlinking the DRC | |
503 | * from DRC_CONTAINER_PATH/<drc_index> we effectively make it | |
504 | * inaccessible by the guest, since lookups rely on this path | |
505 | * existing in the composition tree | |
506 | */ | |
507 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); | |
f5babeac | 508 | link_name = g_strdup_printf("%x", spapr_drc_index(drc)); |
bbf5c878 | 509 | child_name = object_get_canonical_path_component(OBJECT(drc)); |
0b55aa91 | 510 | trace_spapr_drc_realize_child(spapr_drc_index(drc), child_name); |
bbf5c878 MR |
511 | object_property_add_alias(root_container, link_name, |
512 | drc->owner, child_name, &err); | |
bf26ae32 | 513 | g_free(child_name); |
f5babeac | 514 | g_free(link_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 | 528 | Object *root_container; |
f5babeac | 529 | gchar *name; |
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); |
f5babeac | 535 | name = g_strdup_printf("%x", spapr_drc_index(drc)); |
bf26ae32 | 536 | object_property_del(root_container, name, errp); |
f5babeac | 537 | g_free(name); |
bbf5c878 MR |
538 | } |
539 | ||
2d335818 | 540 | sPAPRDRConnector *spapr_dr_connector_new(Object *owner, const char *type, |
bbf5c878 MR |
541 | uint32_t id) |
542 | { | |
2d335818 | 543 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(object_new(type)); |
94649d42 | 544 | char *prop_name; |
bbf5c878 | 545 | |
bbf5c878 MR |
546 | drc->id = id; |
547 | drc->owner = owner; | |
0b55aa91 DG |
548 | prop_name = g_strdup_printf("dr-connector[%"PRIu32"]", |
549 | spapr_drc_index(drc)); | |
325837ca | 550 | object_property_add_child(owner, prop_name, OBJECT(drc), &error_abort); |
f3f41030 | 551 | object_unref(OBJECT(drc)); |
bbf5c878 | 552 | object_property_set_bool(OBJECT(drc), true, "realized", NULL); |
94649d42 | 553 | g_free(prop_name); |
bbf5c878 | 554 | |
bbf5c878 MR |
555 | return drc; |
556 | } | |
557 | ||
558 | static void spapr_dr_connector_instance_init(Object *obj) | |
559 | { | |
560 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(obj); | |
9d4c0f4f | 561 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
bbf5c878 | 562 | |
bbf5c878 MR |
563 | object_property_add_uint32_ptr(obj, "id", &drc->id, NULL); |
564 | object_property_add(obj, "index", "uint32", prop_get_index, | |
565 | NULL, NULL, NULL, NULL); | |
bbf5c878 MR |
566 | object_property_add(obj, "fdt", "struct", prop_get_fdt, |
567 | NULL, NULL, NULL, NULL); | |
9d4c0f4f | 568 | drc->state = drck->empty_state; |
bbf5c878 MR |
569 | } |
570 | ||
571 | static void spapr_dr_connector_class_init(ObjectClass *k, void *data) | |
572 | { | |
573 | DeviceClass *dk = DEVICE_CLASS(k); | |
bbf5c878 | 574 | |
bbf5c878 MR |
575 | dk->realize = realize; |
576 | dk->unrealize = unrealize; | |
c401ae8c MA |
577 | /* |
578 | * Reason: it crashes FIXME find and document the real reason | |
579 | */ | |
e90f2a8c | 580 | dk->user_creatable = false; |
bbf5c878 MR |
581 | } |
582 | ||
67fea71b DG |
583 | static bool drc_physical_needed(void *opaque) |
584 | { | |
585 | sPAPRDRCPhysical *drcp = (sPAPRDRCPhysical *)opaque; | |
586 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(drcp); | |
587 | ||
588 | if ((drc->dev && (drcp->dr_indicator == SPAPR_DR_INDICATOR_ACTIVE)) | |
589 | || (!drc->dev && (drcp->dr_indicator == SPAPR_DR_INDICATOR_INACTIVE))) { | |
590 | return false; | |
591 | } | |
592 | return true; | |
593 | } | |
594 | ||
595 | static const VMStateDescription vmstate_spapr_drc_physical = { | |
596 | .name = "spapr_drc/physical", | |
597 | .version_id = 1, | |
598 | .minimum_version_id = 1, | |
599 | .needed = drc_physical_needed, | |
600 | .fields = (VMStateField []) { | |
601 | VMSTATE_UINT32(dr_indicator, sPAPRDRCPhysical), | |
602 | VMSTATE_END_OF_LIST() | |
603 | } | |
604 | }; | |
605 | ||
606 | static void drc_physical_reset(void *opaque) | |
607 | { | |
608 | sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(opaque); | |
609 | sPAPRDRCPhysical *drcp = SPAPR_DRC_PHYSICAL(drc); | |
610 | ||
611 | if (drc->dev) { | |
612 | drcp->dr_indicator = SPAPR_DR_INDICATOR_ACTIVE; | |
613 | } else { | |
614 | drcp->dr_indicator = SPAPR_DR_INDICATOR_INACTIVE; | |
615 | } | |
616 | } | |
617 | ||
618 | static void realize_physical(DeviceState *d, Error **errp) | |
619 | { | |
620 | sPAPRDRCPhysical *drcp = SPAPR_DRC_PHYSICAL(d); | |
621 | Error *local_err = NULL; | |
622 | ||
623 | realize(d, &local_err); | |
624 | if (local_err) { | |
625 | error_propagate(errp, local_err); | |
626 | return; | |
627 | } | |
628 | ||
629 | vmstate_register(DEVICE(drcp), spapr_drc_index(SPAPR_DR_CONNECTOR(drcp)), | |
630 | &vmstate_spapr_drc_physical, drcp); | |
631 | qemu_register_reset(drc_physical_reset, drcp); | |
632 | } | |
633 | ||
379ae096 GK |
634 | static void unrealize_physical(DeviceState *d, Error **errp) |
635 | { | |
636 | sPAPRDRCPhysical *drcp = SPAPR_DRC_PHYSICAL(d); | |
637 | Error *local_err = NULL; | |
638 | ||
639 | unrealize(d, &local_err); | |
640 | if (local_err) { | |
641 | error_propagate(errp, local_err); | |
642 | return; | |
643 | } | |
644 | ||
645 | vmstate_unregister(DEVICE(drcp), &vmstate_spapr_drc_physical, drcp); | |
646 | qemu_unregister_reset(drc_physical_reset, drcp); | |
647 | } | |
648 | ||
f224d35b DG |
649 | static void spapr_drc_physical_class_init(ObjectClass *k, void *data) |
650 | { | |
67fea71b | 651 | DeviceClass *dk = DEVICE_CLASS(k); |
f224d35b DG |
652 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); |
653 | ||
67fea71b | 654 | dk->realize = realize_physical; |
379ae096 | 655 | dk->unrealize = unrealize_physical; |
f224d35b | 656 | drck->dr_entity_sense = physical_entity_sense; |
0dfabd39 DG |
657 | drck->isolate = drc_isolate_physical; |
658 | drck->unisolate = drc_unisolate_physical; | |
9d4c0f4f DG |
659 | drck->ready_state = SPAPR_DRC_STATE_PHYSICAL_CONFIGURED; |
660 | drck->empty_state = SPAPR_DRC_STATE_PHYSICAL_POWERON; | |
f224d35b DG |
661 | } |
662 | ||
663 | static void spapr_drc_logical_class_init(ObjectClass *k, void *data) | |
664 | { | |
665 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
666 | ||
667 | drck->dr_entity_sense = logical_entity_sense; | |
0dfabd39 DG |
668 | drck->isolate = drc_isolate_logical; |
669 | drck->unisolate = drc_unisolate_logical; | |
9d4c0f4f DG |
670 | drck->ready_state = SPAPR_DRC_STATE_LOGICAL_CONFIGURED; |
671 | drck->empty_state = SPAPR_DRC_STATE_LOGICAL_UNUSABLE; | |
f224d35b DG |
672 | } |
673 | ||
2d335818 DG |
674 | static void spapr_drc_cpu_class_init(ObjectClass *k, void *data) |
675 | { | |
676 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
677 | ||
678 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_CPU; | |
1693ea16 | 679 | drck->typename = "CPU"; |
79808336 | 680 | drck->drc_name_prefix = "CPU "; |
6b762f29 | 681 | drck->release = spapr_core_release; |
2d335818 DG |
682 | } |
683 | ||
684 | static void spapr_drc_pci_class_init(ObjectClass *k, void *data) | |
685 | { | |
686 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
687 | ||
688 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_PCI; | |
1693ea16 | 689 | drck->typename = "28"; |
79808336 | 690 | drck->drc_name_prefix = "C"; |
6b762f29 | 691 | drck->release = spapr_phb_remove_pci_device_cb; |
2d335818 DG |
692 | } |
693 | ||
694 | static void spapr_drc_lmb_class_init(ObjectClass *k, void *data) | |
695 | { | |
696 | sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_CLASS(k); | |
697 | ||
698 | drck->typeshift = SPAPR_DR_CONNECTOR_TYPE_SHIFT_LMB; | |
1693ea16 | 699 | drck->typename = "MEM"; |
79808336 | 700 | drck->drc_name_prefix = "LMB "; |
6b762f29 | 701 | drck->release = spapr_lmb_release; |
2d335818 DG |
702 | } |
703 | ||
bbf5c878 MR |
704 | static const TypeInfo spapr_dr_connector_info = { |
705 | .name = TYPE_SPAPR_DR_CONNECTOR, | |
706 | .parent = TYPE_DEVICE, | |
707 | .instance_size = sizeof(sPAPRDRConnector), | |
708 | .instance_init = spapr_dr_connector_instance_init, | |
709 | .class_size = sizeof(sPAPRDRConnectorClass), | |
710 | .class_init = spapr_dr_connector_class_init, | |
2d335818 DG |
711 | .abstract = true, |
712 | }; | |
713 | ||
714 | static const TypeInfo spapr_drc_physical_info = { | |
715 | .name = TYPE_SPAPR_DRC_PHYSICAL, | |
716 | .parent = TYPE_SPAPR_DR_CONNECTOR, | |
67fea71b | 717 | .instance_size = sizeof(sPAPRDRCPhysical), |
f224d35b | 718 | .class_init = spapr_drc_physical_class_init, |
2d335818 DG |
719 | .abstract = true, |
720 | }; | |
721 | ||
722 | static const TypeInfo spapr_drc_logical_info = { | |
723 | .name = TYPE_SPAPR_DRC_LOGICAL, | |
724 | .parent = TYPE_SPAPR_DR_CONNECTOR, | |
f224d35b | 725 | .class_init = spapr_drc_logical_class_init, |
2d335818 DG |
726 | .abstract = true, |
727 | }; | |
728 | ||
729 | static const TypeInfo spapr_drc_cpu_info = { | |
730 | .name = TYPE_SPAPR_DRC_CPU, | |
731 | .parent = TYPE_SPAPR_DRC_LOGICAL, | |
2d335818 DG |
732 | .class_init = spapr_drc_cpu_class_init, |
733 | }; | |
734 | ||
735 | static const TypeInfo spapr_drc_pci_info = { | |
736 | .name = TYPE_SPAPR_DRC_PCI, | |
737 | .parent = TYPE_SPAPR_DRC_PHYSICAL, | |
2d335818 DG |
738 | .class_init = spapr_drc_pci_class_init, |
739 | }; | |
740 | ||
741 | static const TypeInfo spapr_drc_lmb_info = { | |
742 | .name = TYPE_SPAPR_DRC_LMB, | |
743 | .parent = TYPE_SPAPR_DRC_LOGICAL, | |
2d335818 | 744 | .class_init = spapr_drc_lmb_class_init, |
bbf5c878 MR |
745 | }; |
746 | ||
bbf5c878 MR |
747 | /* helper functions for external users */ |
748 | ||
fbf55397 | 749 | sPAPRDRConnector *spapr_drc_by_index(uint32_t index) |
bbf5c878 MR |
750 | { |
751 | Object *obj; | |
f5babeac | 752 | gchar *name; |
bbf5c878 | 753 | |
f5babeac | 754 | name = g_strdup_printf("%s/%x", DRC_CONTAINER_PATH, index); |
bbf5c878 | 755 | obj = object_resolve_path(name, NULL); |
f5babeac | 756 | g_free(name); |
bbf5c878 MR |
757 | |
758 | return !obj ? NULL : SPAPR_DR_CONNECTOR(obj); | |
759 | } | |
760 | ||
fbf55397 | 761 | sPAPRDRConnector *spapr_drc_by_id(const char *type, uint32_t id) |
bbf5c878 | 762 | { |
fbf55397 DG |
763 | sPAPRDRConnectorClass *drck |
764 | = SPAPR_DR_CONNECTOR_CLASS(object_class_by_name(type)); | |
765 | ||
766 | return spapr_drc_by_index(drck->typeshift << DRC_INDEX_TYPE_SHIFT | |
767 | | (id & DRC_INDEX_ID_MASK)); | |
bbf5c878 | 768 | } |
e4b798bb | 769 | |
e4b798bb MR |
770 | /** |
771 | * spapr_drc_populate_dt | |
772 | * | |
773 | * @fdt: libfdt device tree | |
774 | * @path: path in the DT to generate properties | |
775 | * @owner: parent Object/DeviceState for which to generate DRC | |
776 | * descriptions for | |
777 | * @drc_type_mask: mask of sPAPRDRConnectorType values corresponding | |
778 | * to the types of DRCs to generate entries for | |
779 | * | |
780 | * generate OF properties to describe DRC topology/indices to guests | |
781 | * | |
782 | * as documented in PAPR+ v2.1, 13.5.2 | |
783 | */ | |
784 | int spapr_drc_populate_dt(void *fdt, int fdt_offset, Object *owner, | |
785 | uint32_t drc_type_mask) | |
786 | { | |
787 | Object *root_container; | |
788 | ObjectProperty *prop; | |
7746abd8 | 789 | ObjectPropertyIterator iter; |
e4b798bb MR |
790 | uint32_t drc_count = 0; |
791 | GArray *drc_indexes, *drc_power_domains; | |
792 | GString *drc_names, *drc_types; | |
793 | int ret; | |
794 | ||
795 | /* the first entry of each properties is a 32-bit integer encoding | |
796 | * the number of elements in the array. we won't know this until | |
797 | * we complete the iteration through all the matching DRCs, but | |
798 | * reserve the space now and set the offsets accordingly so we | |
799 | * can fill them in later. | |
800 | */ | |
801 | drc_indexes = g_array_new(false, true, sizeof(uint32_t)); | |
802 | drc_indexes = g_array_set_size(drc_indexes, 1); | |
803 | drc_power_domains = g_array_new(false, true, sizeof(uint32_t)); | |
804 | drc_power_domains = g_array_set_size(drc_power_domains, 1); | |
805 | drc_names = g_string_set_size(g_string_new(NULL), sizeof(uint32_t)); | |
806 | drc_types = g_string_set_size(g_string_new(NULL), sizeof(uint32_t)); | |
807 | ||
808 | /* aliases for all DRConnector objects will be rooted in QOM | |
809 | * composition tree at DRC_CONTAINER_PATH | |
810 | */ | |
811 | root_container = container_get(object_get_root(), DRC_CONTAINER_PATH); | |
812 | ||
7746abd8 DB |
813 | object_property_iter_init(&iter, root_container); |
814 | while ((prop = object_property_iter_next(&iter))) { | |
e4b798bb MR |
815 | Object *obj; |
816 | sPAPRDRConnector *drc; | |
817 | sPAPRDRConnectorClass *drck; | |
818 | uint32_t drc_index, drc_power_domain; | |
819 | ||
820 | if (!strstart(prop->type, "link<", NULL)) { | |
821 | continue; | |
822 | } | |
823 | ||
824 | obj = object_property_get_link(root_container, prop->name, NULL); | |
825 | drc = SPAPR_DR_CONNECTOR(obj); | |
826 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
827 | ||
828 | if (owner && (drc->owner != owner)) { | |
829 | continue; | |
830 | } | |
831 | ||
2d335818 | 832 | if ((spapr_drc_type(drc) & drc_type_mask) == 0) { |
e4b798bb MR |
833 | continue; |
834 | } | |
835 | ||
836 | drc_count++; | |
837 | ||
838 | /* ibm,drc-indexes */ | |
0b55aa91 | 839 | drc_index = cpu_to_be32(spapr_drc_index(drc)); |
e4b798bb MR |
840 | g_array_append_val(drc_indexes, drc_index); |
841 | ||
842 | /* ibm,drc-power-domains */ | |
843 | drc_power_domain = cpu_to_be32(-1); | |
844 | g_array_append_val(drc_power_domains, drc_power_domain); | |
845 | ||
846 | /* ibm,drc-names */ | |
79808336 | 847 | drc_names = g_string_append(drc_names, spapr_drc_name(drc)); |
e4b798bb MR |
848 | drc_names = g_string_insert_len(drc_names, -1, "\0", 1); |
849 | ||
850 | /* ibm,drc-types */ | |
1693ea16 | 851 | drc_types = g_string_append(drc_types, drck->typename); |
e4b798bb MR |
852 | drc_types = g_string_insert_len(drc_types, -1, "\0", 1); |
853 | } | |
854 | ||
855 | /* now write the drc count into the space we reserved at the | |
856 | * beginning of the arrays previously | |
857 | */ | |
858 | *(uint32_t *)drc_indexes->data = cpu_to_be32(drc_count); | |
859 | *(uint32_t *)drc_power_domains->data = cpu_to_be32(drc_count); | |
860 | *(uint32_t *)drc_names->str = cpu_to_be32(drc_count); | |
861 | *(uint32_t *)drc_types->str = cpu_to_be32(drc_count); | |
862 | ||
863 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-indexes", | |
864 | drc_indexes->data, | |
865 | drc_indexes->len * sizeof(uint32_t)); | |
866 | if (ret) { | |
ce9863b7 | 867 | error_report("Couldn't create ibm,drc-indexes property"); |
e4b798bb MR |
868 | goto out; |
869 | } | |
870 | ||
871 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-power-domains", | |
872 | drc_power_domains->data, | |
873 | drc_power_domains->len * sizeof(uint32_t)); | |
874 | if (ret) { | |
ce9863b7 | 875 | error_report("Couldn't finalize ibm,drc-power-domains property"); |
e4b798bb MR |
876 | goto out; |
877 | } | |
878 | ||
879 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-names", | |
880 | drc_names->str, drc_names->len); | |
881 | if (ret) { | |
ce9863b7 | 882 | error_report("Couldn't finalize ibm,drc-names property"); |
e4b798bb MR |
883 | goto out; |
884 | } | |
885 | ||
886 | ret = fdt_setprop(fdt, fdt_offset, "ibm,drc-types", | |
887 | drc_types->str, drc_types->len); | |
888 | if (ret) { | |
ce9863b7 | 889 | error_report("Couldn't finalize ibm,drc-types property"); |
e4b798bb MR |
890 | goto out; |
891 | } | |
892 | ||
893 | out: | |
894 | g_array_free(drc_indexes, true); | |
895 | g_array_free(drc_power_domains, true); | |
896 | g_string_free(drc_names, true); | |
897 | g_string_free(drc_types, true); | |
898 | ||
899 | return ret; | |
900 | } | |
b89b3d39 DG |
901 | |
902 | /* | |
903 | * RTAS calls | |
904 | */ | |
905 | ||
7b7258f8 | 906 | static uint32_t rtas_set_isolation_state(uint32_t idx, uint32_t state) |
b89b3d39 | 907 | { |
7b7258f8 DG |
908 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); |
909 | sPAPRDRConnectorClass *drck; | |
910 | ||
911 | if (!drc) { | |
0dfabd39 | 912 | return RTAS_OUT_NO_SUCH_INDICATOR; |
b89b3d39 DG |
913 | } |
914 | ||
0dfabd39 DG |
915 | trace_spapr_drc_set_isolation_state(spapr_drc_index(drc), state); |
916 | ||
7b7258f8 | 917 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); |
0dfabd39 DG |
918 | |
919 | switch (state) { | |
920 | case SPAPR_DR_ISOLATION_STATE_ISOLATED: | |
921 | return drck->isolate(drc); | |
922 | ||
923 | case SPAPR_DR_ISOLATION_STATE_UNISOLATED: | |
924 | return drck->unisolate(drc); | |
925 | ||
926 | default: | |
927 | return RTAS_OUT_PARAM_ERROR; | |
928 | } | |
b89b3d39 DG |
929 | } |
930 | ||
7b7258f8 | 931 | static uint32_t rtas_set_allocation_state(uint32_t idx, uint32_t state) |
b89b3d39 | 932 | { |
7b7258f8 | 933 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); |
b89b3d39 | 934 | |
61736732 DG |
935 | if (!drc || !object_dynamic_cast(OBJECT(drc), TYPE_SPAPR_DRC_LOGICAL)) { |
936 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
b89b3d39 DG |
937 | } |
938 | ||
61736732 DG |
939 | trace_spapr_drc_set_allocation_state(spapr_drc_index(drc), state); |
940 | ||
941 | switch (state) { | |
942 | case SPAPR_DR_ALLOCATION_STATE_USABLE: | |
943 | return drc_set_usable(drc); | |
944 | ||
945 | case SPAPR_DR_ALLOCATION_STATE_UNUSABLE: | |
946 | return drc_set_unusable(drc); | |
947 | ||
948 | default: | |
949 | return RTAS_OUT_PARAM_ERROR; | |
950 | } | |
7b7258f8 | 951 | } |
b89b3d39 | 952 | |
cd74d27e | 953 | static uint32_t rtas_set_dr_indicator(uint32_t idx, uint32_t state) |
7b7258f8 DG |
954 | { |
955 | sPAPRDRConnector *drc = spapr_drc_by_index(idx); | |
b89b3d39 | 956 | |
67fea71b DG |
957 | if (!drc || !object_dynamic_cast(OBJECT(drc), TYPE_SPAPR_DRC_PHYSICAL)) { |
958 | return RTAS_OUT_NO_SUCH_INDICATOR; | |
959 | } | |
960 | if ((state != SPAPR_DR_INDICATOR_INACTIVE) | |
961 | && (state != SPAPR_DR_INDICATOR_ACTIVE) | |
962 | && (state != SPAPR_DR_INDICATOR_IDENTIFY) | |
963 | && (state != SPAPR_DR_INDICATOR_ACTION)) { | |
964 | return RTAS_OUT_PARAM_ERROR; /* bad state parameter */ | |
7b7258f8 DG |
965 | } |
966 | ||
cd74d27e | 967 | trace_spapr_drc_set_dr_indicator(idx, state); |
67fea71b | 968 | SPAPR_DRC_PHYSICAL(drc)->dr_indicator = state; |
cd74d27e | 969 | return RTAS_OUT_SUCCESS; |
7b7258f8 DG |
970 | } |
971 | ||
972 | static void rtas_set_indicator(PowerPCCPU *cpu, sPAPRMachineState *spapr, | |
973 | uint32_t token, | |
974 | uint32_t nargs, target_ulong args, | |
975 | uint32_t nret, target_ulong rets) | |
976 | { | |
977 | uint32_t type, idx, state; | |
978 | uint32_t ret = RTAS_OUT_SUCCESS; | |
979 | ||
980 | if (nargs != 3 || nret != 1) { | |
b89b3d39 DG |
981 | ret = RTAS_OUT_PARAM_ERROR; |
982 | goto out; | |
983 | } | |
b89b3d39 | 984 | |
7b7258f8 DG |
985 | type = rtas_ld(args, 0); |
986 | idx = rtas_ld(args, 1); | |
987 | state = rtas_ld(args, 2); | |
988 | ||
989 | switch (type) { | |
b89b3d39 | 990 | case RTAS_SENSOR_TYPE_ISOLATION_STATE: |
7b7258f8 | 991 | ret = rtas_set_isolation_state(idx, state); |
b89b3d39 DG |
992 | break; |
993 | case RTAS_SENSOR_TYPE_DR: | |
cd74d27e | 994 | ret = rtas_set_dr_indicator(idx, state); |
b89b3d39 DG |
995 | break; |
996 | case RTAS_SENSOR_TYPE_ALLOCATION_STATE: | |
7b7258f8 | 997 | ret = rtas_set_allocation_state(idx, state); |
b89b3d39 DG |
998 | break; |
999 | default: | |
7b7258f8 | 1000 | ret = RTAS_OUT_NOT_SUPPORTED; |
b89b3d39 DG |
1001 | } |
1002 | ||
1003 | out: | |
1004 | rtas_st(rets, 0, ret); | |
b89b3d39 DG |
1005 | } |
1006 | ||
1007 | static void rtas_get_sensor_state(PowerPCCPU *cpu, sPAPRMachineState *spapr, | |
1008 | uint32_t token, uint32_t nargs, | |
1009 | target_ulong args, uint32_t nret, | |
1010 | target_ulong rets) | |
1011 | { | |
1012 | uint32_t sensor_type; | |
1013 | uint32_t sensor_index; | |
1014 | uint32_t sensor_state = 0; | |
1015 | sPAPRDRConnector *drc; | |
1016 | sPAPRDRConnectorClass *drck; | |
1017 | uint32_t ret = RTAS_OUT_SUCCESS; | |
1018 | ||
1019 | if (nargs != 2 || nret != 2) { | |
1020 | ret = RTAS_OUT_PARAM_ERROR; | |
1021 | goto out; | |
1022 | } | |
1023 | ||
1024 | sensor_type = rtas_ld(args, 0); | |
1025 | sensor_index = rtas_ld(args, 1); | |
1026 | ||
1027 | if (sensor_type != RTAS_SENSOR_TYPE_ENTITY_SENSE) { | |
1028 | /* currently only DR-related sensors are implemented */ | |
1029 | trace_spapr_rtas_get_sensor_state_not_supported(sensor_index, | |
1030 | sensor_type); | |
1031 | ret = RTAS_OUT_NOT_SUPPORTED; | |
1032 | goto out; | |
1033 | } | |
1034 | ||
fbf55397 | 1035 | drc = spapr_drc_by_index(sensor_index); |
b89b3d39 DG |
1036 | if (!drc) { |
1037 | trace_spapr_rtas_get_sensor_state_invalid(sensor_index); | |
1038 | ret = RTAS_OUT_PARAM_ERROR; | |
1039 | goto out; | |
1040 | } | |
1041 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
f224d35b | 1042 | sensor_state = drck->dr_entity_sense(drc); |
b89b3d39 DG |
1043 | |
1044 | out: | |
1045 | rtas_st(rets, 0, ret); | |
1046 | rtas_st(rets, 1, sensor_state); | |
1047 | } | |
1048 | ||
1049 | /* configure-connector work area offsets, int32_t units for field | |
1050 | * indexes, bytes for field offset/len values. | |
1051 | * | |
1052 | * as documented by PAPR+ v2.7, 13.5.3.5 | |
1053 | */ | |
1054 | #define CC_IDX_NODE_NAME_OFFSET 2 | |
1055 | #define CC_IDX_PROP_NAME_OFFSET 2 | |
1056 | #define CC_IDX_PROP_LEN 3 | |
1057 | #define CC_IDX_PROP_DATA_OFFSET 4 | |
1058 | #define CC_VAL_DATA_OFFSET ((CC_IDX_PROP_DATA_OFFSET + 1) * 4) | |
1059 | #define CC_WA_LEN 4096 | |
1060 | ||
1061 | static void configure_connector_st(target_ulong addr, target_ulong offset, | |
1062 | const void *buf, size_t len) | |
1063 | { | |
1064 | cpu_physical_memory_write(ppc64_phys_to_real(addr + offset), | |
1065 | buf, MIN(len, CC_WA_LEN - offset)); | |
1066 | } | |
1067 | ||
b89b3d39 DG |
1068 | static void rtas_ibm_configure_connector(PowerPCCPU *cpu, |
1069 | sPAPRMachineState *spapr, | |
1070 | uint32_t token, uint32_t nargs, | |
1071 | target_ulong args, uint32_t nret, | |
1072 | target_ulong rets) | |
1073 | { | |
1074 | uint64_t wa_addr; | |
1075 | uint64_t wa_offset; | |
1076 | uint32_t drc_index; | |
1077 | sPAPRDRConnector *drc; | |
9d4c0f4f | 1078 | sPAPRDRConnectorClass *drck; |
b89b3d39 DG |
1079 | sPAPRDRCCResponse resp = SPAPR_DR_CC_RESPONSE_CONTINUE; |
1080 | int rc; | |
b89b3d39 DG |
1081 | |
1082 | if (nargs != 2 || nret != 1) { | |
1083 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); | |
1084 | return; | |
1085 | } | |
1086 | ||
1087 | wa_addr = ((uint64_t)rtas_ld(args, 1) << 32) | rtas_ld(args, 0); | |
1088 | ||
1089 | drc_index = rtas_ld(wa_addr, 0); | |
fbf55397 | 1090 | drc = spapr_drc_by_index(drc_index); |
b89b3d39 DG |
1091 | if (!drc) { |
1092 | trace_spapr_rtas_ibm_configure_connector_invalid(drc_index); | |
1093 | rc = RTAS_OUT_PARAM_ERROR; | |
1094 | goto out; | |
1095 | } | |
1096 | ||
9d4c0f4f | 1097 | if ((drc->state != SPAPR_DRC_STATE_LOGICAL_UNISOLATE) |
188bfe1b BR |
1098 | && (drc->state != SPAPR_DRC_STATE_PHYSICAL_UNISOLATE) |
1099 | && (drc->state != SPAPR_DRC_STATE_LOGICAL_CONFIGURED) | |
1100 | && (drc->state != SPAPR_DRC_STATE_PHYSICAL_CONFIGURED)) { | |
1101 | /* | |
1102 | * Need to unisolate the device before configuring | |
1103 | * or it should already be in configured state to | |
1104 | * allow configure-connector be called repeatedly. | |
1105 | */ | |
b89b3d39 DG |
1106 | rc = SPAPR_DR_CC_RESPONSE_NOT_CONFIGURABLE; |
1107 | goto out; | |
1108 | } | |
1109 | ||
9d4c0f4f DG |
1110 | g_assert(drc->fdt); |
1111 | ||
1112 | drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); | |
1113 | ||
b89b3d39 DG |
1114 | do { |
1115 | uint32_t tag; | |
1116 | const char *name; | |
1117 | const struct fdt_property *prop; | |
1118 | int fdt_offset_next, prop_len; | |
1119 | ||
4445b1d2 | 1120 | tag = fdt_next_tag(drc->fdt, drc->ccs_offset, &fdt_offset_next); |
b89b3d39 DG |
1121 | |
1122 | switch (tag) { | |
1123 | case FDT_BEGIN_NODE: | |
4445b1d2 DG |
1124 | drc->ccs_depth++; |
1125 | name = fdt_get_name(drc->fdt, drc->ccs_offset, NULL); | |
b89b3d39 DG |
1126 | |
1127 | /* provide the name of the next OF node */ | |
1128 | wa_offset = CC_VAL_DATA_OFFSET; | |
1129 | rtas_st(wa_addr, CC_IDX_NODE_NAME_OFFSET, wa_offset); | |
1130 | configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1); | |
1131 | resp = SPAPR_DR_CC_RESPONSE_NEXT_CHILD; | |
1132 | break; | |
1133 | case FDT_END_NODE: | |
4445b1d2 DG |
1134 | drc->ccs_depth--; |
1135 | if (drc->ccs_depth == 0) { | |
0b55aa91 | 1136 | uint32_t drc_index = spapr_drc_index(drc); |
9d4c0f4f DG |
1137 | |
1138 | /* done sending the device tree, move to configured state */ | |
0b55aa91 | 1139 | trace_spapr_drc_set_configured(drc_index); |
9d4c0f4f | 1140 | drc->state = drck->ready_state; |
188bfe1b BR |
1141 | /* |
1142 | * Ensure that we are able to send the FDT fragment | |
1143 | * again via configure-connector call if the guest requests. | |
1144 | */ | |
1145 | drc->ccs_offset = drc->fdt_start_offset; | |
1146 | drc->ccs_depth = 0; | |
1147 | fdt_offset_next = drc->fdt_start_offset; | |
b89b3d39 DG |
1148 | resp = SPAPR_DR_CC_RESPONSE_SUCCESS; |
1149 | } else { | |
1150 | resp = SPAPR_DR_CC_RESPONSE_PREV_PARENT; | |
1151 | } | |
1152 | break; | |
1153 | case FDT_PROP: | |
4445b1d2 | 1154 | prop = fdt_get_property_by_offset(drc->fdt, drc->ccs_offset, |
b89b3d39 | 1155 | &prop_len); |
88af6ea5 | 1156 | name = fdt_string(drc->fdt, fdt32_to_cpu(prop->nameoff)); |
b89b3d39 DG |
1157 | |
1158 | /* provide the name of the next OF property */ | |
1159 | wa_offset = CC_VAL_DATA_OFFSET; | |
1160 | rtas_st(wa_addr, CC_IDX_PROP_NAME_OFFSET, wa_offset); | |
1161 | configure_connector_st(wa_addr, wa_offset, name, strlen(name) + 1); | |
1162 | ||
1163 | /* provide the length and value of the OF property. data gets | |
1164 | * placed immediately after NULL terminator of the OF property's | |
1165 | * name string | |
1166 | */ | |
1167 | wa_offset += strlen(name) + 1, | |
1168 | rtas_st(wa_addr, CC_IDX_PROP_LEN, prop_len); | |
1169 | rtas_st(wa_addr, CC_IDX_PROP_DATA_OFFSET, wa_offset); | |
1170 | configure_connector_st(wa_addr, wa_offset, prop->data, prop_len); | |
1171 | resp = SPAPR_DR_CC_RESPONSE_NEXT_PROPERTY; | |
1172 | break; | |
1173 | case FDT_END: | |
1174 | resp = SPAPR_DR_CC_RESPONSE_ERROR; | |
1175 | default: | |
1176 | /* keep seeking for an actionable tag */ | |
1177 | break; | |
1178 | } | |
4445b1d2 DG |
1179 | if (drc->ccs_offset >= 0) { |
1180 | drc->ccs_offset = fdt_offset_next; | |
b89b3d39 DG |
1181 | } |
1182 | } while (resp == SPAPR_DR_CC_RESPONSE_CONTINUE); | |
1183 | ||
1184 | rc = resp; | |
1185 | out: | |
1186 | rtas_st(rets, 0, rc); | |
1187 | } | |
1188 | ||
1189 | static void spapr_drc_register_types(void) | |
1190 | { | |
1191 | type_register_static(&spapr_dr_connector_info); | |
2d335818 DG |
1192 | type_register_static(&spapr_drc_physical_info); |
1193 | type_register_static(&spapr_drc_logical_info); | |
1194 | type_register_static(&spapr_drc_cpu_info); | |
1195 | type_register_static(&spapr_drc_pci_info); | |
1196 | type_register_static(&spapr_drc_lmb_info); | |
b89b3d39 DG |
1197 | |
1198 | spapr_rtas_register(RTAS_SET_INDICATOR, "set-indicator", | |
1199 | rtas_set_indicator); | |
1200 | spapr_rtas_register(RTAS_GET_SENSOR_STATE, "get-sensor-state", | |
1201 | rtas_get_sensor_state); | |
1202 | spapr_rtas_register(RTAS_IBM_CONFIGURE_CONNECTOR, "ibm,configure-connector", | |
1203 | rtas_ibm_configure_connector); | |
1204 | } | |
1205 | type_init(spapr_drc_register_types) |