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28#include "qemu/osdep.h"
29#include "qapi/error.h"
30#include "sysemu/device_tree.h"
31#include "sysemu/runstate.h"
32
33#include "hw/ppc/fdt.h"
34#include "hw/ppc/spapr.h"
35#include "hw/ppc/spapr_vio.h"
36#include "hw/pci/pci.h"
37#include "hw/irq.h"
38#include "hw/pci-host/spapr.h"
39#include "hw/ppc/spapr_drc.h"
40#include "qemu/help_option.h"
41#include "qemu/bcd.h"
42#include "qemu/main-loop.h"
43#include "hw/ppc/spapr_ovec.h"
44#include <libfdt.h>
45#include "migration/blocker.h"
46
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
87#define RTAS_LOG_TYPE_HOTPLUG 0x000000e5
88
89struct rtas_error_log {
90 uint32_t summary;
91 uint32_t extended_length;
92} QEMU_PACKED;
93
94struct rtas_event_log_v6 {
95 uint8_t b0;
96#define RTAS_LOG_V6_B0_VALID 0x80
97#define RTAS_LOG_V6_B0_UNRECOVERABLE_ERROR 0x40
98#define RTAS_LOG_V6_B0_RECOVERABLE_ERROR 0x20
99#define RTAS_LOG_V6_B0_DEGRADED_OPERATION 0x10
100#define RTAS_LOG_V6_B0_PREDICTIVE_ERROR 0x08
101#define RTAS_LOG_V6_B0_NEW_LOG 0x04
102#define RTAS_LOG_V6_B0_BIGENDIAN 0x02
103 uint8_t _resv1;
104 uint8_t b2;
105#define RTAS_LOG_V6_B2_POWERPC_FORMAT 0x80
106#define RTAS_LOG_V6_B2_LOG_FORMAT_MASK 0x0f
107#define RTAS_LOG_V6_B2_LOG_FORMAT_PLATFORM_EVENT 0x0e
108 uint8_t _resv2[9];
109 uint32_t company;
110#define RTAS_LOG_V6_COMPANY_IBM 0x49424d00
111} QEMU_PACKED;
112
113struct rtas_event_log_v6_section_header {
114 uint16_t section_id;
115 uint16_t section_length;
116 uint8_t section_version;
117 uint8_t section_subtype;
118 uint16_t creator_component_id;
119} QEMU_PACKED;
120
121struct rtas_event_log_v6_maina {
122#define RTAS_LOG_V6_SECTION_ID_MAINA 0x5048
123 struct rtas_event_log_v6_section_header hdr;
124 uint32_t creation_date;
125 uint32_t creation_time;
126 uint8_t _platform1[8];
127 char creator_id;
128 uint8_t _resv1[2];
129 uint8_t section_count;
130 uint8_t _resv2[4];
131 uint8_t _platform2[8];
132 uint32_t plid;
133 uint8_t _platform3[4];
134} QEMU_PACKED;
135
136struct rtas_event_log_v6_mainb {
137#define RTAS_LOG_V6_SECTION_ID_MAINB 0x5548
138 struct rtas_event_log_v6_section_header hdr;
139 uint8_t subsystem_id;
140 uint8_t _platform1;
141 uint8_t event_severity;
142 uint8_t event_subtype;
143 uint8_t _platform2[4];
144 uint8_t _resv1[2];
145 uint16_t action_flags;
146 uint8_t _resv2[4];
147} QEMU_PACKED;
148
149struct rtas_event_log_v6_epow {
150#define RTAS_LOG_V6_SECTION_ID_EPOW 0x4550
151 struct rtas_event_log_v6_section_header hdr;
152 uint8_t sensor_value;
153#define RTAS_LOG_V6_EPOW_ACTION_RESET 0
154#define RTAS_LOG_V6_EPOW_ACTION_WARN_COOLING 1
155#define RTAS_LOG_V6_EPOW_ACTION_WARN_POWER 2
156#define RTAS_LOG_V6_EPOW_ACTION_SYSTEM_SHUTDOWN 3
157#define RTAS_LOG_V6_EPOW_ACTION_SYSTEM_HALT 4
158#define RTAS_LOG_V6_EPOW_ACTION_MAIN_ENCLOSURE 5
159#define RTAS_LOG_V6_EPOW_ACTION_POWER_OFF 7
160 uint8_t event_modifier;
161#define RTAS_LOG_V6_EPOW_MODIFIER_NORMAL 1
162#define RTAS_LOG_V6_EPOW_MODIFIER_ON_UPS 2
163#define RTAS_LOG_V6_EPOW_MODIFIER_CRITICAL 3
164#define RTAS_LOG_V6_EPOW_MODIFIER_TEMPERATURE 4
165 uint8_t extended_modifier;
166#define RTAS_LOG_V6_EPOW_XMODIFIER_SYSTEM_WIDE 0
167#define RTAS_LOG_V6_EPOW_XMODIFIER_PARTITION_SPECIFIC 1
168 uint8_t _resv;
169 uint64_t reason_code;
170} QEMU_PACKED;
171
172struct epow_extended_log {
173 struct rtas_event_log_v6 v6hdr;
174 struct rtas_event_log_v6_maina maina;
175 struct rtas_event_log_v6_mainb mainb;
176 struct rtas_event_log_v6_epow epow;
177} QEMU_PACKED;
178
179union drc_identifier {
180 uint32_t index;
181 uint32_t count;
182 struct {
183 uint32_t count;
184 uint32_t index;
185 } count_indexed;
186 char name[1];
187} QEMU_PACKED;
188
189struct rtas_event_log_v6_hp {
190#define RTAS_LOG_V6_SECTION_ID_HOTPLUG 0x4850
191 struct rtas_event_log_v6_section_header hdr;
192 uint8_t hotplug_type;
193#define RTAS_LOG_V6_HP_TYPE_CPU 1
194#define RTAS_LOG_V6_HP_TYPE_MEMORY 2
195#define RTAS_LOG_V6_HP_TYPE_SLOT 3
196#define RTAS_LOG_V6_HP_TYPE_PHB 4
197#define RTAS_LOG_V6_HP_TYPE_PCI 5
198#define RTAS_LOG_V6_HP_TYPE_PMEM 6
199 uint8_t hotplug_action;
200#define RTAS_LOG_V6_HP_ACTION_ADD 1
201#define RTAS_LOG_V6_HP_ACTION_REMOVE 2
202 uint8_t hotplug_identifier;
203#define RTAS_LOG_V6_HP_ID_DRC_NAME 1
204#define RTAS_LOG_V6_HP_ID_DRC_INDEX 2
205#define RTAS_LOG_V6_HP_ID_DRC_COUNT 3
206#define RTAS_LOG_V6_HP_ID_DRC_COUNT_INDEXED 4
207 uint8_t reserved;
208 union drc_identifier drc_id;
209} QEMU_PACKED;
210
211struct hp_extended_log {
212 struct rtas_event_log_v6 v6hdr;
213 struct rtas_event_log_v6_maina maina;
214 struct rtas_event_log_v6_mainb mainb;
215 struct rtas_event_log_v6_hp hp;
216} QEMU_PACKED;
217
218struct rtas_event_log_v6_mc {
219#define RTAS_LOG_V6_SECTION_ID_MC 0x4D43
220 struct rtas_event_log_v6_section_header hdr;
221 uint32_t fru_id;
222 uint32_t proc_id;
223 uint8_t error_type;
224#define RTAS_LOG_V6_MC_TYPE_UE 0
225#define RTAS_LOG_V6_MC_TYPE_SLB 1
226#define RTAS_LOG_V6_MC_TYPE_ERAT 2
227#define RTAS_LOG_V6_MC_TYPE_TLB 4
228#define RTAS_LOG_V6_MC_TYPE_D_CACHE 5
229#define RTAS_LOG_V6_MC_TYPE_I_CACHE 7
230 uint8_t sub_err_type;
231#define RTAS_LOG_V6_MC_UE_INDETERMINATE 0
232#define RTAS_LOG_V6_MC_UE_IFETCH 1
233#define RTAS_LOG_V6_MC_UE_PAGE_TABLE_WALK_IFETCH 2
234#define RTAS_LOG_V6_MC_UE_LOAD_STORE 3
235#define RTAS_LOG_V6_MC_UE_PAGE_TABLE_WALK_LOAD_STORE 4
236#define RTAS_LOG_V6_MC_SLB_PARITY 0
237#define RTAS_LOG_V6_MC_SLB_MULTIHIT 1
238#define RTAS_LOG_V6_MC_SLB_INDETERMINATE 2
239#define RTAS_LOG_V6_MC_ERAT_PARITY 1
240#define RTAS_LOG_V6_MC_ERAT_MULTIHIT 2
241#define RTAS_LOG_V6_MC_ERAT_INDETERMINATE 3
242#define RTAS_LOG_V6_MC_TLB_PARITY 1
243#define RTAS_LOG_V6_MC_TLB_MULTIHIT 2
244#define RTAS_LOG_V6_MC_TLB_INDETERMINATE 3
245
246
247
248
249
250
251#define RTAS_LOG_V6_MC_UE_EA_ADDR_PROVIDED 0x40
252#define RTAS_LOG_V6_MC_EA_ADDR_PROVIDED 0x80
253 uint8_t reserved_1[6];
254 uint64_t effective_address;
255 uint64_t logical_address;
256} QEMU_PACKED;
257
258struct mc_extended_log {
259 struct rtas_event_log_v6 v6hdr;
260 struct rtas_event_log_v6_mc mc;
261} QEMU_PACKED;
262
263struct MC_ierror_table {
264 unsigned long srr1_mask;
265 unsigned long srr1_value;
266 bool nip_valid;
267 uint8_t error_type;
268 uint8_t error_subtype;
269 unsigned int initiator;
270 unsigned int severity;
271};
272
273static const struct MC_ierror_table mc_ierror_table[] = {
274{ 0x00000000081c0000, 0x0000000000040000, true,
275 RTAS_LOG_V6_MC_TYPE_UE, RTAS_LOG_V6_MC_UE_IFETCH,
276 RTAS_LOG_INITIATOR_CPU, RTAS_LOG_SEVERITY_ERROR_SYNC, },
277{ 0x00000000081c0000, 0x0000000000080000, true,
278 RTAS_LOG_V6_MC_TYPE_SLB, RTAS_LOG_V6_MC_SLB_PARITY,
279 RTAS_LOG_INITIATOR_CPU, RTAS_LOG_SEVERITY_ERROR_SYNC, },
280{ 0x00000000081c0000, 0x00000000000c0000, true,
281 RTAS_LOG_V6_MC_TYPE_SLB, RTAS_LOG_V6_MC_SLB_MULTIHIT,
282 RTAS_LOG_INITIATOR_CPU, RTAS_LOG_SEVERITY_ERROR_SYNC, },
283{ 0x00000000081c0000, 0x0000000000100000, true,
284 RTAS_LOG_V6_MC_TYPE_ERAT, RTAS_LOG_V6_MC_ERAT_MULTIHIT,
285 RTAS_LOG_INITIATOR_CPU, RTAS_LOG_SEVERITY_ERROR_SYNC, },
286{ 0x00000000081c0000, 0x0000000000140000, true,
287 RTAS_LOG_V6_MC_TYPE_TLB, RTAS_LOG_V6_MC_TLB_MULTIHIT,
288 RTAS_LOG_INITIATOR_CPU, RTAS_LOG_SEVERITY_ERROR_SYNC, },
289{ 0x00000000081c0000, 0x0000000000180000, true,
290 RTAS_LOG_V6_MC_TYPE_UE, RTAS_LOG_V6_MC_UE_PAGE_TABLE_WALK_IFETCH,
291 RTAS_LOG_INITIATOR_CPU, RTAS_LOG_SEVERITY_ERROR_SYNC, } };
292
293struct MC_derror_table {
294 unsigned long dsisr_value;
295 bool dar_valid;
296 uint8_t error_type;
297 uint8_t error_subtype;
298 unsigned int initiator;
299 unsigned int severity;
300};
301
302static const struct MC_derror_table mc_derror_table[] = {
303{ 0x00008000, false,
304 RTAS_LOG_V6_MC_TYPE_UE, RTAS_LOG_V6_MC_UE_LOAD_STORE,
305 RTAS_LOG_INITIATOR_CPU, RTAS_LOG_SEVERITY_ERROR_SYNC, },
306{ 0x00004000, true,
307 RTAS_LOG_V6_MC_TYPE_UE, RTAS_LOG_V6_MC_UE_PAGE_TABLE_WALK_LOAD_STORE,
308 RTAS_LOG_INITIATOR_CPU, RTAS_LOG_SEVERITY_ERROR_SYNC, },
309{ 0x00000800, true,
310 RTAS_LOG_V6_MC_TYPE_ERAT, RTAS_LOG_V6_MC_ERAT_MULTIHIT,
311 RTAS_LOG_INITIATOR_CPU, RTAS_LOG_SEVERITY_ERROR_SYNC, },
312{ 0x00000400, true,
313 RTAS_LOG_V6_MC_TYPE_TLB, RTAS_LOG_V6_MC_TLB_MULTIHIT,
314 RTAS_LOG_INITIATOR_CPU, RTAS_LOG_SEVERITY_ERROR_SYNC, },
315{ 0x00000080, true,
316 RTAS_LOG_V6_MC_TYPE_SLB, RTAS_LOG_V6_MC_SLB_MULTIHIT,
317 RTAS_LOG_INITIATOR_CPU, RTAS_LOG_SEVERITY_ERROR_SYNC, },
318{ 0x00000100, true,
319 RTAS_LOG_V6_MC_TYPE_SLB, RTAS_LOG_V6_MC_SLB_PARITY,
320 RTAS_LOG_INITIATOR_CPU, RTAS_LOG_SEVERITY_ERROR_SYNC, } };
321
322#define SRR1_MC_LOADSTORE(srr1) ((srr1) & PPC_BIT(42))
323
324typedef enum EventClass {
325 EVENT_CLASS_INTERNAL_ERRORS = 0,
326 EVENT_CLASS_EPOW = 1,
327 EVENT_CLASS_RESERVED = 2,
328 EVENT_CLASS_HOT_PLUG = 3,
329 EVENT_CLASS_IO = 4,
330 EVENT_CLASS_MAX
331} EventClassIndex;
332#define EVENT_CLASS_MASK(index) (1 << (31 - index))
333
334static const char * const event_names[EVENT_CLASS_MAX] = {
335 [EVENT_CLASS_INTERNAL_ERRORS] = "internal-errors",
336 [EVENT_CLASS_EPOW] = "epow-events",
337 [EVENT_CLASS_HOT_PLUG] = "hot-plug-events",
338 [EVENT_CLASS_IO] = "ibm,io-events",
339};
340
341struct SpaprEventSource {
342 int irq;
343 uint32_t mask;
344 bool enabled;
345};
346
347static SpaprEventSource *spapr_event_sources_new(void)
348{
349 return g_new0(SpaprEventSource, EVENT_CLASS_MAX);
350}
351
352static void spapr_event_sources_register(SpaprEventSource *event_sources,
353 EventClassIndex index, int irq)
354{
355
356 g_assert(event_sources);
357 g_assert(!event_sources[index].enabled);
358 event_sources[index].irq = irq;
359 event_sources[index].mask = EVENT_CLASS_MASK(index);
360 event_sources[index].enabled = true;
361}
362
363static const SpaprEventSource *
364spapr_event_sources_get_source(SpaprEventSource *event_sources,
365 EventClassIndex index)
366{
367 g_assert(index < EVENT_CLASS_MAX);
368 g_assert(event_sources);
369
370 return &event_sources[index];
371}
372
373void spapr_dt_events(SpaprMachineState *spapr, void *fdt)
374{
375 uint32_t irq_ranges[EVENT_CLASS_MAX * 2];
376 int i, count = 0, event_sources;
377 SpaprEventSource *events = spapr->event_sources;
378
379 g_assert(events);
380
381 _FDT(event_sources = fdt_add_subnode(fdt, 0, "event-sources"));
382
383 for (i = 0, count = 0; i < EVENT_CLASS_MAX; i++) {
384 int node_offset;
385 uint32_t interrupts[2];
386 const SpaprEventSource *source =
387 spapr_event_sources_get_source(events, i);
388 const char *source_name = event_names[i];
389
390 if (!source->enabled) {
391 continue;
392 }
393
394 spapr_dt_irq(interrupts, source->irq, false);
395
396 _FDT(node_offset = fdt_add_subnode(fdt, event_sources, source_name));
397 _FDT(fdt_setprop(fdt, node_offset, "interrupts", interrupts,
398 sizeof(interrupts)));
399
400 irq_ranges[count++] = interrupts[0];
401 irq_ranges[count++] = cpu_to_be32(1);
402 }
403
404 _FDT((fdt_setprop(fdt, event_sources, "interrupt-controller", NULL, 0)));
405 _FDT((fdt_setprop_cell(fdt, event_sources, "#interrupt-cells", 2)));
406 _FDT((fdt_setprop(fdt, event_sources, "interrupt-ranges",
407 irq_ranges, count * sizeof(uint32_t))));
408}
409
410static const SpaprEventSource *
411rtas_event_log_to_source(SpaprMachineState *spapr, int log_type)
412{
413 const SpaprEventSource *source;
414
415 g_assert(spapr->event_sources);
416
417 switch (log_type) {
418 case RTAS_LOG_TYPE_HOTPLUG:
419 source = spapr_event_sources_get_source(spapr->event_sources,
420 EVENT_CLASS_HOT_PLUG);
421 if (spapr_ovec_test(spapr->ov5_cas, OV5_HP_EVT)) {
422 g_assert(source->enabled);
423 break;
424 }
425
426 case RTAS_LOG_TYPE_EPOW:
427 source = spapr_event_sources_get_source(spapr->event_sources,
428 EVENT_CLASS_EPOW);
429 break;
430 default:
431 source = NULL;
432 }
433
434 return source;
435}
436
437static int rtas_event_log_to_irq(SpaprMachineState *spapr, int log_type)
438{
439 const SpaprEventSource *source;
440
441 source = rtas_event_log_to_source(spapr, log_type);
442 g_assert(source);
443 g_assert(source->enabled);
444
445 return source->irq;
446}
447
448static uint32_t spapr_event_log_entry_type(SpaprEventLogEntry *entry)
449{
450 return entry->summary & RTAS_LOG_TYPE_MASK;
451}
452
453static void rtas_event_log_queue(SpaprMachineState *spapr,
454 SpaprEventLogEntry *entry)
455{
456 QTAILQ_INSERT_TAIL(&spapr->pending_events, entry, next);
457}
458
459static SpaprEventLogEntry *rtas_event_log_dequeue(SpaprMachineState *spapr,
460 uint32_t event_mask)
461{
462 SpaprEventLogEntry *entry = NULL;
463
464 QTAILQ_FOREACH(entry, &spapr->pending_events, next) {
465 const SpaprEventSource *source =
466 rtas_event_log_to_source(spapr,
467 spapr_event_log_entry_type(entry));
468
469 g_assert(source);
470 if (source->mask & event_mask) {
471 break;
472 }
473 }
474
475 if (entry) {
476 QTAILQ_REMOVE(&spapr->pending_events, entry, next);
477 }
478
479 return entry;
480}
481
482static bool rtas_event_log_contains(SpaprMachineState *spapr, uint32_t event_mask)
483{
484 SpaprEventLogEntry *entry = NULL;
485
486 QTAILQ_FOREACH(entry, &spapr->pending_events, next) {
487 const SpaprEventSource *source =
488 rtas_event_log_to_source(spapr,
489 spapr_event_log_entry_type(entry));
490
491 if (source->mask & event_mask) {
492 return true;
493 }
494 }
495
496 return false;
497}
498
499static uint32_t next_plid;
500
501static void spapr_init_v6hdr(struct rtas_event_log_v6 *v6hdr)
502{
503 v6hdr->b0 = RTAS_LOG_V6_B0_VALID | RTAS_LOG_V6_B0_NEW_LOG
504 | RTAS_LOG_V6_B0_BIGENDIAN;
505 v6hdr->b2 = RTAS_LOG_V6_B2_POWERPC_FORMAT
506 | RTAS_LOG_V6_B2_LOG_FORMAT_PLATFORM_EVENT;
507 v6hdr->company = cpu_to_be32(RTAS_LOG_V6_COMPANY_IBM);
508}
509
510static void spapr_init_maina(SpaprMachineState *spapr,
511 struct rtas_event_log_v6_maina *maina,
512 int section_count)
513{
514 struct tm tm;
515 int year;
516
517 maina->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINA);
518 maina->hdr.section_length = cpu_to_be16(sizeof(*maina));
519
520 spapr_rtc_read(&spapr->rtc, &tm, NULL);
521 year = tm.tm_year + 1900;
522 maina->creation_date = cpu_to_be32((to_bcd(year / 100) << 24)
523 | (to_bcd(year % 100) << 16)
524 | (to_bcd(tm.tm_mon + 1) << 8)
525 | to_bcd(tm.tm_mday));
526 maina->creation_time = cpu_to_be32((to_bcd(tm.tm_hour) << 24)
527 | (to_bcd(tm.tm_min) << 16)
528 | (to_bcd(tm.tm_sec) << 8));
529 maina->creator_id = 'H';
530 maina->section_count = section_count;
531 maina->plid = next_plid++;
532}
533
534static void spapr_powerdown_req(Notifier *n, void *opaque)
535{
536 SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
537 SpaprEventLogEntry *entry;
538 struct rtas_event_log_v6 *v6hdr;
539 struct rtas_event_log_v6_maina *maina;
540 struct rtas_event_log_v6_mainb *mainb;
541 struct rtas_event_log_v6_epow *epow;
542 struct epow_extended_log *new_epow;
543
544 entry = g_new(SpaprEventLogEntry, 1);
545 new_epow = g_malloc0(sizeof(*new_epow));
546 entry->extended_log = new_epow;
547
548 v6hdr = &new_epow->v6hdr;
549 maina = &new_epow->maina;
550 mainb = &new_epow->mainb;
551 epow = &new_epow->epow;
552
553 entry->summary = RTAS_LOG_VERSION_6
554 | RTAS_LOG_SEVERITY_EVENT
555 | RTAS_LOG_DISPOSITION_NOT_RECOVERED
556 | RTAS_LOG_OPTIONAL_PART_PRESENT
557 | RTAS_LOG_TYPE_EPOW;
558 entry->extended_length = sizeof(*new_epow);
559
560 spapr_init_v6hdr(v6hdr);
561 spapr_init_maina(spapr, maina, 3 );
562
563 mainb->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINB);
564 mainb->hdr.section_length = cpu_to_be16(sizeof(*mainb));
565
566 mainb->subsystem_id = 0xa0;
567 mainb->event_severity = 0x00;
568 mainb->event_subtype = 0xd0;
569
570 epow->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_EPOW);
571 epow->hdr.section_length = cpu_to_be16(sizeof(*epow));
572 epow->hdr.section_version = 2;
573
574 epow->sensor_value = RTAS_LOG_V6_EPOW_ACTION_SYSTEM_SHUTDOWN;
575 epow->event_modifier = RTAS_LOG_V6_EPOW_MODIFIER_NORMAL;
576 epow->extended_modifier = RTAS_LOG_V6_EPOW_XMODIFIER_PARTITION_SPECIFIC;
577
578 rtas_event_log_queue(spapr, entry);
579
580 qemu_irq_pulse(spapr_qirq(spapr,
581 rtas_event_log_to_irq(spapr, RTAS_LOG_TYPE_EPOW)));
582}
583
584static void spapr_hotplug_req_event(uint8_t hp_id, uint8_t hp_action,
585 SpaprDrcType drc_type,
586 union drc_identifier *drc_id)
587{
588 SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
589 SpaprEventLogEntry *entry;
590 struct hp_extended_log *new_hp;
591 struct rtas_event_log_v6 *v6hdr;
592 struct rtas_event_log_v6_maina *maina;
593 struct rtas_event_log_v6_mainb *mainb;
594 struct rtas_event_log_v6_hp *hp;
595
596 entry = g_new(SpaprEventLogEntry, 1);
597 new_hp = g_new0(struct hp_extended_log, 1);
598 entry->extended_log = new_hp;
599
600 v6hdr = &new_hp->v6hdr;
601 maina = &new_hp->maina;
602 mainb = &new_hp->mainb;
603 hp = &new_hp->hp;
604
605 entry->summary = RTAS_LOG_VERSION_6
606 | RTAS_LOG_SEVERITY_EVENT
607 | RTAS_LOG_DISPOSITION_NOT_RECOVERED
608 | RTAS_LOG_OPTIONAL_PART_PRESENT
609 | RTAS_LOG_INITIATOR_HOTPLUG
610 | RTAS_LOG_TYPE_HOTPLUG;
611 entry->extended_length = sizeof(*new_hp);
612
613 spapr_init_v6hdr(v6hdr);
614 spapr_init_maina(spapr, maina, 3 );
615
616 mainb->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINB);
617 mainb->hdr.section_length = cpu_to_be16(sizeof(*mainb));
618 mainb->subsystem_id = 0x80;
619 mainb->event_severity = 0x00;
620 mainb->event_subtype = 0x00;
621
622 hp->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_HOTPLUG);
623 hp->hdr.section_length = cpu_to_be16(sizeof(*hp));
624 hp->hdr.section_version = 1;
625 hp->hotplug_action = hp_action;
626 hp->hotplug_identifier = hp_id;
627
628 switch (drc_type) {
629 case SPAPR_DR_CONNECTOR_TYPE_PCI:
630 hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_PCI;
631 break;
632 case SPAPR_DR_CONNECTOR_TYPE_LMB:
633 hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_MEMORY;
634 break;
635 case SPAPR_DR_CONNECTOR_TYPE_CPU:
636 hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_CPU;
637 break;
638 case SPAPR_DR_CONNECTOR_TYPE_PHB:
639 hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_PHB;
640 break;
641 case SPAPR_DR_CONNECTOR_TYPE_PMEM:
642 hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_PMEM;
643 break;
644 default:
645
646
647
648 g_assert(false);
649 return;
650 }
651
652 if (hp_id == RTAS_LOG_V6_HP_ID_DRC_COUNT) {
653 hp->drc_id.count = cpu_to_be32(drc_id->count);
654 } else if (hp_id == RTAS_LOG_V6_HP_ID_DRC_INDEX) {
655 hp->drc_id.index = cpu_to_be32(drc_id->index);
656 } else if (hp_id == RTAS_LOG_V6_HP_ID_DRC_COUNT_INDEXED) {
657
658
659
660 g_assert(spapr_memory_hot_unplug_supported(spapr));
661 hp->drc_id.count_indexed.count =
662 cpu_to_be32(drc_id->count_indexed.count);
663 hp->drc_id.count_indexed.index =
664 cpu_to_be32(drc_id->count_indexed.index);
665 }
666
667 rtas_event_log_queue(spapr, entry);
668
669 qemu_irq_pulse(spapr_qirq(spapr,
670 rtas_event_log_to_irq(spapr, RTAS_LOG_TYPE_HOTPLUG)));
671}
672
673void spapr_hotplug_req_add_by_index(SpaprDrc *drc)
674{
675 SpaprDrcType drc_type = spapr_drc_type(drc);
676 union drc_identifier drc_id;
677
678 drc_id.index = spapr_drc_index(drc);
679 spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_INDEX,
680 RTAS_LOG_V6_HP_ACTION_ADD, drc_type, &drc_id);
681}
682
683void spapr_hotplug_req_remove_by_index(SpaprDrc *drc)
684{
685 SpaprDrcType drc_type = spapr_drc_type(drc);
686 union drc_identifier drc_id;
687
688 drc_id.index = spapr_drc_index(drc);
689 spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_INDEX,
690 RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, &drc_id);
691}
692
693void spapr_hotplug_req_add_by_count(SpaprDrcType drc_type,
694 uint32_t count)
695{
696 union drc_identifier drc_id;
697
698 drc_id.count = count;
699 spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT,
700 RTAS_LOG_V6_HP_ACTION_ADD, drc_type, &drc_id);
701}
702
703void spapr_hotplug_req_remove_by_count(SpaprDrcType drc_type,
704 uint32_t count)
705{
706 union drc_identifier drc_id;
707
708 drc_id.count = count;
709 spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT,
710 RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, &drc_id);
711}
712
713void spapr_hotplug_req_add_by_count_indexed(SpaprDrcType drc_type,
714 uint32_t count, uint32_t index)
715{
716 union drc_identifier drc_id;
717
718 drc_id.count_indexed.count = count;
719 drc_id.count_indexed.index = index;
720 spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT_INDEXED,
721 RTAS_LOG_V6_HP_ACTION_ADD, drc_type, &drc_id);
722}
723
724void spapr_hotplug_req_remove_by_count_indexed(SpaprDrcType drc_type,
725 uint32_t count, uint32_t index)
726{
727 union drc_identifier drc_id;
728
729 drc_id.count_indexed.count = count;
730 drc_id.count_indexed.index = index;
731 spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT_INDEXED,
732 RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, &drc_id);
733}
734
735static void spapr_mc_set_ea_provided_flag(struct mc_extended_log *ext_elog)
736{
737 switch (ext_elog->mc.error_type) {
738 case RTAS_LOG_V6_MC_TYPE_UE:
739 ext_elog->mc.sub_err_type |= RTAS_LOG_V6_MC_UE_EA_ADDR_PROVIDED;
740 break;
741 case RTAS_LOG_V6_MC_TYPE_SLB:
742 case RTAS_LOG_V6_MC_TYPE_ERAT:
743 case RTAS_LOG_V6_MC_TYPE_TLB:
744 ext_elog->mc.sub_err_type |= RTAS_LOG_V6_MC_EA_ADDR_PROVIDED;
745 break;
746 default:
747 break;
748 }
749}
750
751static uint32_t spapr_mce_get_elog_type(PowerPCCPU *cpu, bool recovered,
752 struct mc_extended_log *ext_elog)
753{
754 int i;
755 CPUPPCState *env = &cpu->env;
756 uint32_t summary;
757 uint64_t dsisr = env->spr[SPR_DSISR];
758
759 summary = RTAS_LOG_VERSION_6 | RTAS_LOG_OPTIONAL_PART_PRESENT;
760 if (recovered) {
761 summary |= RTAS_LOG_DISPOSITION_FULLY_RECOVERED;
762 } else {
763 summary |= RTAS_LOG_DISPOSITION_NOT_RECOVERED;
764 }
765
766 if (SRR1_MC_LOADSTORE(env->spr[SPR_SRR1])) {
767 for (i = 0; i < ARRAY_SIZE(mc_derror_table); i++) {
768 if (!(dsisr & mc_derror_table[i].dsisr_value)) {
769 continue;
770 }
771
772 ext_elog->mc.error_type = mc_derror_table[i].error_type;
773 ext_elog->mc.sub_err_type = mc_derror_table[i].error_subtype;
774 if (mc_derror_table[i].dar_valid) {
775 ext_elog->mc.effective_address = cpu_to_be64(env->spr[SPR_DAR]);
776 spapr_mc_set_ea_provided_flag(ext_elog);
777 }
778
779 summary |= mc_derror_table[i].initiator
780 | mc_derror_table[i].severity;
781
782 return summary;
783 }
784 } else {
785 for (i = 0; i < ARRAY_SIZE(mc_ierror_table); i++) {
786 if ((env->spr[SPR_SRR1] & mc_ierror_table[i].srr1_mask) !=
787 mc_ierror_table[i].srr1_value) {
788 continue;
789 }
790
791 ext_elog->mc.error_type = mc_ierror_table[i].error_type;
792 ext_elog->mc.sub_err_type = mc_ierror_table[i].error_subtype;
793 if (mc_ierror_table[i].nip_valid) {
794 ext_elog->mc.effective_address = cpu_to_be64(env->nip);
795 spapr_mc_set_ea_provided_flag(ext_elog);
796 }
797
798 summary |= mc_ierror_table[i].initiator
799 | mc_ierror_table[i].severity;
800
801 return summary;
802 }
803 }
804
805 summary |= RTAS_LOG_INITIATOR_CPU;
806 return summary;
807}
808
809static void spapr_mce_dispatch_elog(SpaprMachineState *spapr, PowerPCCPU *cpu,
810 bool recovered)
811{
812 CPUState *cs = CPU(cpu);
813 CPUPPCState *env = &cpu->env;
814 uint64_t rtas_addr;
815 struct rtas_error_log log;
816 struct mc_extended_log *ext_elog;
817 uint32_t summary;
818
819 ext_elog = g_malloc0(sizeof(*ext_elog));
820 summary = spapr_mce_get_elog_type(cpu, recovered, ext_elog);
821
822 log.summary = cpu_to_be32(summary);
823 log.extended_length = cpu_to_be32(sizeof(*ext_elog));
824
825 spapr_init_v6hdr(&ext_elog->v6hdr);
826 ext_elog->mc.hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MC);
827 ext_elog->mc.hdr.section_length =
828 cpu_to_be16(sizeof(struct rtas_event_log_v6_mc));
829 ext_elog->mc.hdr.section_version = 1;
830
831
832 rtas_addr = spapr_get_rtas_addr();
833 if (!rtas_addr) {
834 if (!recovered) {
835 error_report(
836"FWNMI: Unable to deliver machine check to guest: rtas_addr not found.");
837 qemu_system_guest_panicked(NULL);
838 } else {
839 warn_report(
840"FWNMI: Unable to deliver machine check to guest: rtas_addr not found. "
841"Machine check recovered.");
842 }
843 g_free(ext_elog);
844 return;
845 }
846
847
848
849
850
851
852
853
854 spapr->fwnmi_machine_check_interlock = cpu->vcpu_id;
855
856 stq_be_phys(&address_space_memory, rtas_addr + RTAS_ERROR_LOG_OFFSET,
857 env->gpr[3]);
858 cpu_physical_memory_write(rtas_addr + RTAS_ERROR_LOG_OFFSET +
859 sizeof(env->gpr[3]), &log, sizeof(log));
860 cpu_physical_memory_write(rtas_addr + RTAS_ERROR_LOG_OFFSET +
861 sizeof(env->gpr[3]) + sizeof(log), ext_elog,
862 sizeof(*ext_elog));
863 g_free(ext_elog);
864
865 env->gpr[3] = rtas_addr + RTAS_ERROR_LOG_OFFSET;
866
867 ppc_cpu_do_fwnmi_machine_check(cs, spapr->fwnmi_machine_check_addr);
868}
869
870void spapr_mce_req_event(PowerPCCPU *cpu, bool recovered)
871{
872 SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
873 CPUState *cs = CPU(cpu);
874 int ret;
875
876 if (spapr->fwnmi_machine_check_addr == -1) {
877
878 cs->exception_index = POWERPC_EXCP_MCHECK;
879 ppc_cpu_do_interrupt(cs);
880 return;
881 }
882
883
884 while (spapr->fwnmi_machine_check_interlock != -1) {
885
886
887
888
889
890 if (spapr->fwnmi_machine_check_interlock == cpu->vcpu_id) {
891 if (!recovered) {
892 error_report(
893"FWNMI: Unable to deliver machine check to guest: nested machine check.");
894 qemu_system_guest_panicked(NULL);
895 } else {
896 warn_report(
897"FWNMI: Unable to deliver machine check to guest: nested machine check. "
898"Machine check recovered.");
899 }
900 return;
901 }
902 qemu_cond_wait_iothread(&spapr->fwnmi_machine_check_interlock_cond);
903 if (spapr->fwnmi_machine_check_addr == -1) {
904
905
906
907
908
909
910 return;
911 }
912 }
913
914
915
916
917
918
919
920
921
922
923 ret = migrate_add_blocker(spapr->fwnmi_migration_blocker, NULL);
924 if (ret == -EBUSY) {
925 warn_report("Received a fwnmi while migration was in progress");
926 }
927
928 spapr_mce_dispatch_elog(spapr, cpu, recovered);
929}
930
931static void check_exception(PowerPCCPU *cpu, SpaprMachineState *spapr,
932 uint32_t token, uint32_t nargs,
933 target_ulong args,
934 uint32_t nret, target_ulong rets)
935{
936 uint32_t mask, buf, len, event_len;
937 SpaprEventLogEntry *event;
938 struct rtas_error_log header;
939 int i;
940
941 if ((nargs < 6) || (nargs > 7) || nret != 1) {
942 rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
943 return;
944 }
945
946 mask = rtas_ld(args, 2);
947 buf = rtas_ld(args, 4);
948 len = rtas_ld(args, 5);
949
950 event = rtas_event_log_dequeue(spapr, mask);
951 if (!event) {
952 goto out_no_events;
953 }
954
955 event_len = event->extended_length + sizeof(header);
956
957 if (event_len < len) {
958 len = event_len;
959 }
960
961 header.summary = cpu_to_be32(event->summary);
962 header.extended_length = cpu_to_be32(event->extended_length);
963 cpu_physical_memory_write(buf, &header, sizeof(header));
964 cpu_physical_memory_write(buf + sizeof(header), event->extended_log,
965 event->extended_length);
966 rtas_st(rets, 0, RTAS_OUT_SUCCESS);
967 g_free(event->extended_log);
968 g_free(event);
969
970
971
972
973
974
975 for (i = 0; i < EVENT_CLASS_MAX; i++) {
976 if (rtas_event_log_contains(spapr, EVENT_CLASS_MASK(i))) {
977 const SpaprEventSource *source =
978 spapr_event_sources_get_source(spapr->event_sources, i);
979
980 g_assert(source->enabled);
981 qemu_irq_pulse(spapr_qirq(spapr, source->irq));
982 }
983 }
984
985 return;
986
987out_no_events:
988 rtas_st(rets, 0, RTAS_OUT_NO_ERRORS_FOUND);
989}
990
991static void event_scan(PowerPCCPU *cpu, SpaprMachineState *spapr,
992 uint32_t token, uint32_t nargs,
993 target_ulong args,
994 uint32_t nret, target_ulong rets)
995{
996 int i;
997 if (nargs != 4 || nret != 1) {
998 rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
999 return;
1000 }
1001
1002 for (i = 0; i < EVENT_CLASS_MAX; i++) {
1003 if (rtas_event_log_contains(spapr, EVENT_CLASS_MASK(i))) {
1004 const SpaprEventSource *source =
1005 spapr_event_sources_get_source(spapr->event_sources, i);
1006
1007 g_assert(source->enabled);
1008 qemu_irq_pulse(spapr_qirq(spapr, source->irq));
1009 }
1010 }
1011
1012 rtas_st(rets, 0, RTAS_OUT_NO_ERRORS_FOUND);
1013}
1014
1015void spapr_clear_pending_events(SpaprMachineState *spapr)
1016{
1017 SpaprEventLogEntry *entry = NULL, *next_entry;
1018
1019 QTAILQ_FOREACH_SAFE(entry, &spapr->pending_events, next, next_entry) {
1020 QTAILQ_REMOVE(&spapr->pending_events, entry, next);
1021 g_free(entry->extended_log);
1022 g_free(entry);
1023 }
1024}
1025
1026void spapr_clear_pending_hotplug_events(SpaprMachineState *spapr)
1027{
1028 SpaprEventLogEntry *entry = NULL, *next_entry;
1029
1030 QTAILQ_FOREACH_SAFE(entry, &spapr->pending_events, next, next_entry) {
1031 if (spapr_event_log_entry_type(entry) == RTAS_LOG_TYPE_HOTPLUG) {
1032 QTAILQ_REMOVE(&spapr->pending_events, entry, next);
1033 g_free(entry->extended_log);
1034 g_free(entry);
1035 }
1036 }
1037}
1038
1039void spapr_events_init(SpaprMachineState *spapr)
1040{
1041 int epow_irq = SPAPR_IRQ_EPOW;
1042
1043 if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) {
1044 epow_irq = spapr_irq_findone(spapr, &error_fatal);
1045 }
1046
1047 spapr_irq_claim(spapr, epow_irq, false, &error_fatal);
1048
1049 QTAILQ_INIT(&spapr->pending_events);
1050
1051 spapr->event_sources = spapr_event_sources_new();
1052
1053 spapr_event_sources_register(spapr->event_sources, EVENT_CLASS_EPOW,
1054 epow_irq);
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064 if (spapr->use_hotplug_event_source) {
1065 int hp_irq = SPAPR_IRQ_HOTPLUG;
1066
1067 if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) {
1068 hp_irq = spapr_irq_findone(spapr, &error_fatal);
1069 }
1070
1071 spapr_irq_claim(spapr, hp_irq, false, &error_fatal);
1072
1073 spapr_event_sources_register(spapr->event_sources, EVENT_CLASS_HOT_PLUG,
1074 hp_irq);
1075 }
1076
1077 spapr->epow_notifier.notify = spapr_powerdown_req;
1078 qemu_register_powerdown_notifier(&spapr->epow_notifier);
1079 spapr_rtas_register(RTAS_CHECK_EXCEPTION, "check-exception",
1080 check_exception);
1081 spapr_rtas_register(RTAS_EVENT_SCAN, "event-scan", event_scan);
1082}
1083
