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[qemu.git] / hw / ppc / spapr_events.c
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74d042e5
DG		 1/*
2 * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
3 *
4 * RTAS events handling
5 *
6 * Copyright (c) 2012 David Gibson, IBM Corporation.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 * THE SOFTWARE.
25 *
26 */
0d75590d 27#include "qemu/osdep.h"
da34e65c 28#include "qapi/error.h"
74d042e5 29#include "cpu.h"
9c17d615 30#include "sysemu/sysemu.h"
dccfcd0e 31#include "sysemu/char.h"
74d042e5 32#include "hw/qdev.h"
9c17d615 33#include "sysemu/device_tree.h"
74d042e5 34
7804c353 35#include "hw/ppc/fdt.h"
0d09e41a
PB		 36#include "hw/ppc/spapr.h"
37#include "hw/ppc/spapr_vio.h"
31fe14d1
NF		 38#include "hw/pci/pci.h"
39#include "hw/pci-host/spapr.h"
40#include "hw/ppc/spapr_drc.h"
f348b6d1
VB		 41#include "qemu/help_option.h"
42#include "qemu/bcd.h"
74d042e5
DG		 43#include <libfdt.h>
44
45struct rtas_error_log {
46 uint32_t summary;
47#define RTAS_LOG_VERSION_MASK 0xff000000
48#define RTAS_LOG_VERSION_6 0x06000000
49#define RTAS_LOG_SEVERITY_MASK 0x00e00000
50#define RTAS_LOG_SEVERITY_ALREADY_REPORTED 0x00c00000
51#define RTAS_LOG_SEVERITY_FATAL 0x00a00000
52#define RTAS_LOG_SEVERITY_ERROR 0x00800000
53#define RTAS_LOG_SEVERITY_ERROR_SYNC 0x00600000
54#define RTAS_LOG_SEVERITY_WARNING 0x00400000
55#define RTAS_LOG_SEVERITY_EVENT 0x00200000
56#define RTAS_LOG_SEVERITY_NO_ERROR 0x00000000
57#define RTAS_LOG_DISPOSITION_MASK 0x00180000
58#define RTAS_LOG_DISPOSITION_FULLY_RECOVERED 0x00000000
59#define RTAS_LOG_DISPOSITION_LIMITED_RECOVERY 0x00080000
60#define RTAS_LOG_DISPOSITION_NOT_RECOVERED 0x00100000
61#define RTAS_LOG_OPTIONAL_PART_PRESENT 0x00040000
62#define RTAS_LOG_INITIATOR_MASK 0x0000f000
63#define RTAS_LOG_INITIATOR_UNKNOWN 0x00000000
64#define RTAS_LOG_INITIATOR_CPU 0x00001000
65#define RTAS_LOG_INITIATOR_PCI 0x00002000
66#define RTAS_LOG_INITIATOR_MEMORY 0x00004000
67#define RTAS_LOG_INITIATOR_HOTPLUG 0x00006000
68#define RTAS_LOG_TARGET_MASK 0x00000f00
69#define RTAS_LOG_TARGET_UNKNOWN 0x00000000
70#define RTAS_LOG_TARGET_CPU 0x00000100
71#define RTAS_LOG_TARGET_PCI 0x00000200
72#define RTAS_LOG_TARGET_MEMORY 0x00000400
73#define RTAS_LOG_TARGET_HOTPLUG 0x00000600
74#define RTAS_LOG_TYPE_MASK 0x000000ff
75#define RTAS_LOG_TYPE_OTHER 0x00000000
76#define RTAS_LOG_TYPE_RETRY 0x00000001
77#define RTAS_LOG_TYPE_TCE_ERR 0x00000002
78#define RTAS_LOG_TYPE_INTERN_DEV_FAIL 0x00000003
79#define RTAS_LOG_TYPE_TIMEOUT 0x00000004
80#define RTAS_LOG_TYPE_DATA_PARITY 0x00000005
81#define RTAS_LOG_TYPE_ADDR_PARITY 0x00000006
82#define RTAS_LOG_TYPE_CACHE_PARITY 0x00000007
83#define RTAS_LOG_TYPE_ADDR_INVALID 0x00000008
84#define RTAS_LOG_TYPE_ECC_UNCORR 0x00000009
85#define RTAS_LOG_TYPE_ECC_CORR 0x0000000a
86#define RTAS_LOG_TYPE_EPOW 0x00000040
31fe14d1 87#define RTAS_LOG_TYPE_HOTPLUG 0x000000e5
74d042e5
DG		 88 uint32_t extended_length;
89} QEMU_PACKED;
90
91struct rtas_event_log_v6 {
92 uint8_t b0;
93#define RTAS_LOG_V6_B0_VALID 0x80
94#define RTAS_LOG_V6_B0_UNRECOVERABLE_ERROR 0x40
95#define RTAS_LOG_V6_B0_RECOVERABLE_ERROR 0x20
96#define RTAS_LOG_V6_B0_DEGRADED_OPERATION 0x10
97#define RTAS_LOG_V6_B0_PREDICTIVE_ERROR 0x08
98#define RTAS_LOG_V6_B0_NEW_LOG 0x04
99#define RTAS_LOG_V6_B0_BIGENDIAN 0x02
100 uint8_t _resv1;
101 uint8_t b2;
102#define RTAS_LOG_V6_B2_POWERPC_FORMAT 0x80
103#define RTAS_LOG_V6_B2_LOG_FORMAT_MASK 0x0f
104#define RTAS_LOG_V6_B2_LOG_FORMAT_PLATFORM_EVENT 0x0e
105 uint8_t _resv2[9];
106 uint32_t company;
107#define RTAS_LOG_V6_COMPANY_IBM 0x49424d00 /* IBM<null> */
108} QEMU_PACKED;
109
110struct rtas_event_log_v6_section_header {
111 uint16_t section_id;
112 uint16_t section_length;
113 uint8_t section_version;
114 uint8_t section_subtype;
115 uint16_t creator_component_id;
116} QEMU_PACKED;
117
118struct rtas_event_log_v6_maina {
119#define RTAS_LOG_V6_SECTION_ID_MAINA 0x5048 /* PH */
120 struct rtas_event_log_v6_section_header hdr;
121 uint32_t creation_date; /* BCD: YYYYMMDD */
122 uint32_t creation_time; /* BCD: HHMMSS00 */
123 uint8_t _platform1[8];
124 char creator_id;
125 uint8_t _resv1[2];
126 uint8_t section_count;
127 uint8_t _resv2[4];
128 uint8_t _platform2[8];
129 uint32_t plid;
130 uint8_t _platform3[4];
131} QEMU_PACKED;
132
133struct rtas_event_log_v6_mainb {
134#define RTAS_LOG_V6_SECTION_ID_MAINB 0x5548 /* UH */
135 struct rtas_event_log_v6_section_header hdr;
136 uint8_t subsystem_id;
137 uint8_t _platform1;
138 uint8_t event_severity;
139 uint8_t event_subtype;
140 uint8_t _platform2[4];
141 uint8_t _resv1[2];
142 uint16_t action_flags;
143 uint8_t _resv2[4];
144} QEMU_PACKED;
145
146struct rtas_event_log_v6_epow {
147#define RTAS_LOG_V6_SECTION_ID_EPOW 0x4550 /* EP */
148 struct rtas_event_log_v6_section_header hdr;
149 uint8_t sensor_value;
150#define RTAS_LOG_V6_EPOW_ACTION_RESET 0
151#define RTAS_LOG_V6_EPOW_ACTION_WARN_COOLING 1
152#define RTAS_LOG_V6_EPOW_ACTION_WARN_POWER 2
153#define RTAS_LOG_V6_EPOW_ACTION_SYSTEM_SHUTDOWN 3
154#define RTAS_LOG_V6_EPOW_ACTION_SYSTEM_HALT 4
155#define RTAS_LOG_V6_EPOW_ACTION_MAIN_ENCLOSURE 5
156#define RTAS_LOG_V6_EPOW_ACTION_POWER_OFF 7
157 uint8_t event_modifier;
158#define RTAS_LOG_V6_EPOW_MODIFIER_NORMAL 1
159#define RTAS_LOG_V6_EPOW_MODIFIER_ON_UPS 2
160#define RTAS_LOG_V6_EPOW_MODIFIER_CRITICAL 3
161#define RTAS_LOG_V6_EPOW_MODIFIER_TEMPERATURE 4
162 uint8_t extended_modifier;
163#define RTAS_LOG_V6_EPOW_XMODIFIER_SYSTEM_WIDE 0
164#define RTAS_LOG_V6_EPOW_XMODIFIER_PARTITION_SPECIFIC 1
165 uint8_t _resv;
166 uint64_t reason_code;
167} QEMU_PACKED;
168
169struct epow_log_full {
170 struct rtas_error_log hdr;
171 struct rtas_event_log_v6 v6hdr;
172 struct rtas_event_log_v6_maina maina;
173 struct rtas_event_log_v6_mainb mainb;
174 struct rtas_event_log_v6_epow epow;
175} QEMU_PACKED;
176
31fe14d1
NF		 177struct rtas_event_log_v6_hp {
178#define RTAS_LOG_V6_SECTION_ID_HOTPLUG 0x4850 /* HP */
179 struct rtas_event_log_v6_section_header hdr;
180 uint8_t hotplug_type;
181#define RTAS_LOG_V6_HP_TYPE_CPU 1
182#define RTAS_LOG_V6_HP_TYPE_MEMORY 2
183#define RTAS_LOG_V6_HP_TYPE_SLOT 3
184#define RTAS_LOG_V6_HP_TYPE_PHB 4
185#define RTAS_LOG_V6_HP_TYPE_PCI 5
186 uint8_t hotplug_action;
187#define RTAS_LOG_V6_HP_ACTION_ADD 1
188#define RTAS_LOG_V6_HP_ACTION_REMOVE 2
189 uint8_t hotplug_identifier;
190#define RTAS_LOG_V6_HP_ID_DRC_NAME 1
191#define RTAS_LOG_V6_HP_ID_DRC_INDEX 2
192#define RTAS_LOG_V6_HP_ID_DRC_COUNT 3
193 uint8_t reserved;
194 union {
195 uint32_t index;
196 uint32_t count;
197 char name[1];
198 } drc;
199} QEMU_PACKED;
200
201struct hp_log_full {
202 struct rtas_error_log hdr;
203 struct rtas_event_log_v6 v6hdr;
204 struct rtas_event_log_v6_maina maina;
205 struct rtas_event_log_v6_mainb mainb;
206 struct rtas_event_log_v6_hp hp;
207} QEMU_PACKED;
208
74d042e5
DG		 209#define EVENT_MASK_INTERNAL_ERRORS 0x80000000
210#define EVENT_MASK_EPOW 0x40000000
211#define EVENT_MASK_HOTPLUG 0x10000000
212#define EVENT_MASK_IO 0x08000000
213
31fe14d1 214void spapr_events_fdt_skel(void *fdt, uint32_t check_exception_irq)
74d042e5 215{
31fe14d1
NF		 216 uint32_t irq_ranges[] = {cpu_to_be32(check_exception_irq), cpu_to_be32(1)};
217 uint32_t interrupts[] = {cpu_to_be32(check_exception_irq), 0};
74d042e5
DG		 218
219 _FDT((fdt_begin_node(fdt, "event-sources")));
220
221 _FDT((fdt_property(fdt, "interrupt-controller", NULL, 0)));
222 _FDT((fdt_property_cell(fdt, "#interrupt-cells", 2)));
223 _FDT((fdt_property(fdt, "interrupt-ranges",
31fe14d1 224 irq_ranges, sizeof(irq_ranges))));
74d042e5
DG		 225
226 _FDT((fdt_begin_node(fdt, "epow-events")));
31fe14d1 227 _FDT((fdt_property(fdt, "interrupts", interrupts, sizeof(interrupts))));
74d042e5
DG		 228 _FDT((fdt_end_node(fdt)));
229
230 _FDT((fdt_end_node(fdt)));
231}
232
79853e18 233static void rtas_event_log_queue(int log_type, void *data, bool exception)
31fe14d1 234{
28e02042 235 sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
31fe14d1 236 sPAPREventLogEntry *entry = g_new(sPAPREventLogEntry, 1);
74d042e5 237
31fe14d1
NF		 238 g_assert(data);
239 entry->log_type = log_type;
79853e18 240 entry->exception = exception;
31fe14d1
NF		 241 entry->data = data;
242 QTAILQ_INSERT_TAIL(&spapr->pending_events, entry, next);
243}
244
79853e18
TD		 245static sPAPREventLogEntry *rtas_event_log_dequeue(uint32_t event_mask,
246 bool exception)
74d042e5 247{
28e02042 248 sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
31fe14d1 249 sPAPREventLogEntry *entry = NULL;
74d042e5 250
31fe14d1
NF		 251 /* we only queue EPOW events atm. */
252 if ((event_mask & EVENT_MASK_EPOW) == 0) {
253 return NULL;
74d042e5 254 }
74d042e5 255
31fe14d1 256 QTAILQ_FOREACH(entry, &spapr->pending_events, next) {
79853e18
TD		 257 if (entry->exception != exception) {
258 continue;
259 }
260
31fe14d1
NF		 261 /* EPOW and hotplug events are surfaced in the same manner */
262 if (entry->log_type == RTAS_LOG_TYPE_EPOW ||
263 entry->log_type == RTAS_LOG_TYPE_HOTPLUG) {
264 break;
265 }
266 }
267
268 if (entry) {
269 QTAILQ_REMOVE(&spapr->pending_events, entry, next);
270 }
271
272 return entry;
273}
274
79853e18 275static bool rtas_event_log_contains(uint32_t event_mask, bool exception)
31fe14d1 276{
28e02042 277 sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
31fe14d1
NF		 278 sPAPREventLogEntry *entry = NULL;
279
280 /* we only queue EPOW events atm. */
281 if ((event_mask & EVENT_MASK_EPOW) == 0) {
282 return false;
283 }
284
285 QTAILQ_FOREACH(entry, &spapr->pending_events, next) {
79853e18
TD		 286 if (entry->exception != exception) {
287 continue;
288 }
289
31fe14d1
NF		 290 /* EPOW and hotplug events are surfaced in the same manner */
291 if (entry->log_type == RTAS_LOG_TYPE_EPOW ||
292 entry->log_type == RTAS_LOG_TYPE_HOTPLUG) {
293 return true;
294 }
295 }
296
297 return false;
298}
74d042e5 299
31fe14d1
NF		 300static uint32_t next_plid;
301
302static void spapr_init_v6hdr(struct rtas_event_log_v6 *v6hdr)
303{
74d042e5
DG		 304 v6hdr->b0 = RTAS_LOG_V6_B0_VALID | RTAS_LOG_V6_B0_NEW_LOG
305 | RTAS_LOG_V6_B0_BIGENDIAN;
306 v6hdr->b2 = RTAS_LOG_V6_B2_POWERPC_FORMAT
307 | RTAS_LOG_V6_B2_LOG_FORMAT_PLATFORM_EVENT;
308 v6hdr->company = cpu_to_be32(RTAS_LOG_V6_COMPANY_IBM);
31fe14d1
NF		 309}
310
311static void spapr_init_maina(struct rtas_event_log_v6_maina *maina,
312 int section_count)
313{
28e02042 314 sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
31fe14d1
NF		 315 struct tm tm;
316 int year;
74d042e5
DG		 317
318 maina->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINA);
319 maina->hdr.section_length = cpu_to_be16(sizeof(*maina));
320 /* FIXME: section version, subtype and creator id? */
28df36a1 321 spapr_rtc_read(spapr->rtc, &tm, NULL);
74d042e5
DG		 322 year = tm.tm_year + 1900;
323 maina->creation_date = cpu_to_be32((to_bcd(year / 100) << 24)
324 | (to_bcd(year % 100) << 16)
325 | (to_bcd(tm.tm_mon + 1) << 8)
326 | to_bcd(tm.tm_mday));
327 maina->creation_time = cpu_to_be32((to_bcd(tm.tm_hour) << 24)
328 | (to_bcd(tm.tm_min) << 16)
329 | (to_bcd(tm.tm_sec) << 8));
330 maina->creator_id = 'H'; /* Hypervisor */
31fe14d1 331 maina->section_count = section_count;
74d042e5 332 maina->plid = next_plid++;
31fe14d1
NF		 333}
334
335static void spapr_powerdown_req(Notifier *n, void *opaque)
336{
28e02042 337 sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
31fe14d1
NF		 338 struct rtas_error_log *hdr;
339 struct rtas_event_log_v6 *v6hdr;
340 struct rtas_event_log_v6_maina *maina;
341 struct rtas_event_log_v6_mainb *mainb;
342 struct rtas_event_log_v6_epow *epow;
343 struct epow_log_full *new_epow;
344
345 new_epow = g_malloc0(sizeof(*new_epow));
346 hdr = &new_epow->hdr;
347 v6hdr = &new_epow->v6hdr;
348 maina = &new_epow->maina;
349 mainb = &new_epow->mainb;
350 epow = &new_epow->epow;
351
352 hdr->summary = cpu_to_be32(RTAS_LOG_VERSION_6
353 | RTAS_LOG_SEVERITY_EVENT
354 | RTAS_LOG_DISPOSITION_NOT_RECOVERED
355 | RTAS_LOG_OPTIONAL_PART_PRESENT
356 | RTAS_LOG_TYPE_EPOW);
357 hdr->extended_length = cpu_to_be32(sizeof(*new_epow)
358 - sizeof(new_epow->hdr));
359
360 spapr_init_v6hdr(v6hdr);
361 spapr_init_maina(maina, 3 /* Main-A, Main-B and EPOW */);
74d042e5
DG		 362
363 mainb->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINB);
364 mainb->hdr.section_length = cpu_to_be16(sizeof(*mainb));
365 /* FIXME: section version, subtype and creator id? */
366 mainb->subsystem_id = 0xa0; /* External environment */
367 mainb->event_severity = 0x00; /* Informational / non-error */
368 mainb->event_subtype = 0xd0; /* Normal shutdown */
369
370 epow->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_EPOW);
371 epow->hdr.section_length = cpu_to_be16(sizeof(*epow));
372 epow->hdr.section_version = 2; /* includes extended modifier */
373 /* FIXME: section subtype and creator id? */
374 epow->sensor_value = RTAS_LOG_V6_EPOW_ACTION_SYSTEM_SHUTDOWN;
375 epow->event_modifier = RTAS_LOG_V6_EPOW_MODIFIER_NORMAL;
376 epow->extended_modifier = RTAS_LOG_V6_EPOW_XMODIFIER_PARTITION_SPECIFIC;
377
79853e18 378 rtas_event_log_queue(RTAS_LOG_TYPE_EPOW, new_epow, true);
31fe14d1 379
27f24582 380 qemu_irq_pulse(xics_get_qirq(spapr->xics, spapr->check_exception_irq));
31fe14d1
NF		 381}
382
f40eb921
MR		 383static void spapr_hotplug_set_signalled(uint32_t drc_index)
384{
385 sPAPRDRConnector *drc = spapr_dr_connector_by_index(drc_index);
386 sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
387 drck->set_signalled(drc);
388}
389
7a36ae7a
BR		 390static void spapr_hotplug_req_event(uint8_t hp_id, uint8_t hp_action,
391 sPAPRDRConnectorType drc_type,
392 uint32_t drc)
31fe14d1 393{
28e02042 394 sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
31fe14d1
NF		 395 struct hp_log_full *new_hp;
396 struct rtas_error_log *hdr;
397 struct rtas_event_log_v6 *v6hdr;
398 struct rtas_event_log_v6_maina *maina;
399 struct rtas_event_log_v6_mainb *mainb;
400 struct rtas_event_log_v6_hp *hp;
31fe14d1
NF		 401
402 new_hp = g_malloc0(sizeof(struct hp_log_full));
403 hdr = &new_hp->hdr;
404 v6hdr = &new_hp->v6hdr;
405 maina = &new_hp->maina;
406 mainb = &new_hp->mainb;
407 hp = &new_hp->hp;
408
409 hdr->summary = cpu_to_be32(RTAS_LOG_VERSION_6
410 | RTAS_LOG_SEVERITY_EVENT
411 | RTAS_LOG_DISPOSITION_NOT_RECOVERED
412 | RTAS_LOG_OPTIONAL_PART_PRESENT
413 | RTAS_LOG_INITIATOR_HOTPLUG
414 | RTAS_LOG_TYPE_HOTPLUG);
415 hdr->extended_length = cpu_to_be32(sizeof(*new_hp)
416 - sizeof(new_hp->hdr));
417
418 spapr_init_v6hdr(v6hdr);
419 spapr_init_maina(maina, 3 /* Main-A, Main-B, HP */);
420
421 mainb->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINB);
422 mainb->hdr.section_length = cpu_to_be16(sizeof(*mainb));
423 mainb->subsystem_id = 0x80; /* External environment */
424 mainb->event_severity = 0x00; /* Informational / non-error */
425 mainb->event_subtype = 0x00; /* Normal shutdown */
426
427 hp->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_HOTPLUG);
428 hp->hdr.section_length = cpu_to_be16(sizeof(*hp));
429 hp->hdr.section_version = 1; /* includes extended modifier */
430 hp->hotplug_action = hp_action;
7a36ae7a 431 hp->hotplug_identifier = hp_id;
31fe14d1
NF		 432
433 switch (drc_type) {
434 case SPAPR_DR_CONNECTOR_TYPE_PCI:
31fe14d1 435 hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_PCI;
df18b2db
MR		 436 if (hp->hotplug_action == RTAS_LOG_V6_HP_ACTION_ADD) {
437 spapr_hotplug_set_signalled(drc);
438 }
31fe14d1 439 break;
c20d332a
BR		 440 case SPAPR_DR_CONNECTOR_TYPE_LMB:
441 hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_MEMORY;
442 break;
af81cf32
BR		 443 case SPAPR_DR_CONNECTOR_TYPE_CPU:
444 hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_CPU;
445 break;
31fe14d1
NF		 446 default:
447 /* we shouldn't be signaling hotplug events for resources
448 * that don't support them
449 */
450 g_assert(false);
451 return;
452 }
453
7a36ae7a
BR		 454 if (hp_id == RTAS_LOG_V6_HP_ID_DRC_COUNT) {
455 hp->drc.count = cpu_to_be32(drc);
456 } else if (hp_id == RTAS_LOG_V6_HP_ID_DRC_INDEX) {
457 hp->drc.index = cpu_to_be32(drc);
458 }
459
79853e18 460 rtas_event_log_queue(RTAS_LOG_TYPE_HOTPLUG, new_hp, true);
31fe14d1 461
27f24582 462 qemu_irq_pulse(xics_get_qirq(spapr->xics, spapr->check_exception_irq));
31fe14d1
NF		 463}
464
7a36ae7a
BR		 465void spapr_hotplug_req_add_by_index(sPAPRDRConnector *drc)
466{
467 sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
468 sPAPRDRConnectorType drc_type = drck->get_type(drc);
3a87d009 469 uint32_t index = drck->get_index(drc);
7a36ae7a
BR		 470
471 spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_INDEX,
472 RTAS_LOG_V6_HP_ACTION_ADD, drc_type, index);
473}
474
475void spapr_hotplug_req_remove_by_index(sPAPRDRConnector *drc)
476{
477 sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
478 sPAPRDRConnectorType drc_type = drck->get_type(drc);
3a87d009 479 uint32_t index = drck->get_index(drc);
7a36ae7a
BR		 480
481 spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_INDEX,
482 RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, index);
483}
484
485void spapr_hotplug_req_add_by_count(sPAPRDRConnectorType drc_type,
486 uint32_t count)
31fe14d1 487{
7a36ae7a
BR		 488 spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT,
489 RTAS_LOG_V6_HP_ACTION_ADD, drc_type, count);
31fe14d1
NF		 490}
491
7a36ae7a
BR		 492void spapr_hotplug_req_remove_by_count(sPAPRDRConnectorType drc_type,
493 uint32_t count)
31fe14d1 494{
7a36ae7a
BR		 495 spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT,
496 RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, count);
74d042e5
DG		 497}
498
28e02042 499static void check_exception(PowerPCCPU *cpu, sPAPRMachineState *spapr,
74d042e5
DG		 500 uint32_t token, uint32_t nargs,
501 target_ulong args,
502 uint32_t nret, target_ulong rets)
503{
31fe14d1 504 uint32_t mask, buf, len, event_len;
74d042e5 505 uint64_t xinfo;
31fe14d1
NF		 506 sPAPREventLogEntry *event;
507 struct rtas_error_log *hdr;
74d042e5
DG		 508
509 if ((nargs < 6) || (nargs > 7) || nret != 1) {
a64d325d 510 rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
74d042e5
DG		 511 return;
512 }
513
514 xinfo = rtas_ld(args, 1);
515 mask = rtas_ld(args, 2);
516 buf = rtas_ld(args, 4);
517 len = rtas_ld(args, 5);
518 if (nargs == 7) {
519 xinfo |= (uint64_t)rtas_ld(args, 6) << 32;
520 }
521
79853e18 522 event = rtas_event_log_dequeue(mask, true);
31fe14d1
NF		 523 if (!event) {
524 goto out_no_events;
525 }
74d042e5 526
31fe14d1
NF		 527 hdr = event->data;
528 event_len = be32_to_cpu(hdr->extended_length) + sizeof(*hdr);
529
530 if (event_len < len) {
531 len = event_len;
532 }
533
534 cpu_physical_memory_write(buf, event->data, len);
535 rtas_st(rets, 0, RTAS_OUT_SUCCESS);
536 g_free(event->data);
537 g_free(event);
538
539 /* according to PAPR+, the IRQ must be left asserted, or re-asserted, if
540 * there are still pending events to be fetched via check-exception. We
541 * do the latter here, since our code relies on edge-triggered
542 * interrupts.
543 */
79853e18 544 if (rtas_event_log_contains(mask, true)) {
27f24582 545 qemu_irq_pulse(xics_get_qirq(spapr->xics, spapr->check_exception_irq));
74d042e5 546 }
31fe14d1
NF		 547
548 return;
549
550out_no_events:
551 rtas_st(rets, 0, RTAS_OUT_NO_ERRORS_FOUND);
74d042e5
DG		 552}
553
28e02042 554static void event_scan(PowerPCCPU *cpu, sPAPRMachineState *spapr,
79853e18
TD		 555 uint32_t token, uint32_t nargs,
556 target_ulong args,
557 uint32_t nret, target_ulong rets)
558{
559 uint32_t mask, buf, len, event_len;
560 sPAPREventLogEntry *event;
561 struct rtas_error_log *hdr;
562
563 if (nargs != 4 || nret != 1) {
564 rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
565 return;
566 }
567
568 mask = rtas_ld(args, 0);
569 buf = rtas_ld(args, 2);
570 len = rtas_ld(args, 3);
571
572 event = rtas_event_log_dequeue(mask, false);
573 if (!event) {
574 goto out_no_events;
575 }
576
577 hdr = event->data;
578 event_len = be32_to_cpu(hdr->extended_length) + sizeof(*hdr);
579
580 if (event_len < len) {
581 len = event_len;
582 }
583
584 cpu_physical_memory_write(buf, event->data, len);
585 rtas_st(rets, 0, RTAS_OUT_SUCCESS);
586 g_free(event->data);
587 g_free(event);
588 return;
589
590out_no_events:
591 rtas_st(rets, 0, RTAS_OUT_NO_ERRORS_FOUND);
592}
593
28e02042 594void spapr_events_init(sPAPRMachineState *spapr)
74d042e5 595{
31fe14d1 596 QTAILQ_INIT(&spapr->pending_events);
cc706a53 597 spapr->check_exception_irq = xics_spapr_alloc(spapr->xics, 0, false,
a005b3ef 598 &error_fatal);
74d042e5
DG		 599 spapr->epow_notifier.notify = spapr_powerdown_req;
600 qemu_register_powerdown_notifier(&spapr->epow_notifier);
3a3b8502
AK		 601 spapr_rtas_register(RTAS_CHECK_EXCEPTION, "check-exception",
602 check_exception);
79853e18 603 spapr_rtas_register(RTAS_EVENT_SCAN, "event-scan", event_scan);
74d042e5 604}
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