1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
|
/*
* QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
*
* RTAS events handling
*
* Copyright (c) 2012 David Gibson, IBM Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#include "cpu.h"
#include "sysemu/sysemu.h"
#include "sysemu/char.h"
#include "hw/qdev.h"
#include "sysemu/device_tree.h"
#include "hw/ppc/spapr.h"
#include "hw/ppc/spapr_vio.h"
#include <libfdt.h>
struct rtas_error_log {
uint32_t summary;
#define RTAS_LOG_VERSION_MASK 0xff000000
#define RTAS_LOG_VERSION_6 0x06000000
#define RTAS_LOG_SEVERITY_MASK 0x00e00000
#define RTAS_LOG_SEVERITY_ALREADY_REPORTED 0x00c00000
#define RTAS_LOG_SEVERITY_FATAL 0x00a00000
#define RTAS_LOG_SEVERITY_ERROR 0x00800000
#define RTAS_LOG_SEVERITY_ERROR_SYNC 0x00600000
#define RTAS_LOG_SEVERITY_WARNING 0x00400000
#define RTAS_LOG_SEVERITY_EVENT 0x00200000
#define RTAS_LOG_SEVERITY_NO_ERROR 0x00000000
#define RTAS_LOG_DISPOSITION_MASK 0x00180000
#define RTAS_LOG_DISPOSITION_FULLY_RECOVERED 0x00000000
#define RTAS_LOG_DISPOSITION_LIMITED_RECOVERY 0x00080000
#define RTAS_LOG_DISPOSITION_NOT_RECOVERED 0x00100000
#define RTAS_LOG_OPTIONAL_PART_PRESENT 0x00040000
#define RTAS_LOG_INITIATOR_MASK 0x0000f000
#define RTAS_LOG_INITIATOR_UNKNOWN 0x00000000
#define RTAS_LOG_INITIATOR_CPU 0x00001000
#define RTAS_LOG_INITIATOR_PCI 0x00002000
#define RTAS_LOG_INITIATOR_MEMORY 0x00004000
#define RTAS_LOG_INITIATOR_HOTPLUG 0x00006000
#define RTAS_LOG_TARGET_MASK 0x00000f00
#define RTAS_LOG_TARGET_UNKNOWN 0x00000000
#define RTAS_LOG_TARGET_CPU 0x00000100
#define RTAS_LOG_TARGET_PCI 0x00000200
#define RTAS_LOG_TARGET_MEMORY 0x00000400
#define RTAS_LOG_TARGET_HOTPLUG 0x00000600
#define RTAS_LOG_TYPE_MASK 0x000000ff
#define RTAS_LOG_TYPE_OTHER 0x00000000
#define RTAS_LOG_TYPE_RETRY 0x00000001
#define RTAS_LOG_TYPE_TCE_ERR 0x00000002
#define RTAS_LOG_TYPE_INTERN_DEV_FAIL 0x00000003
#define RTAS_LOG_TYPE_TIMEOUT 0x00000004
#define RTAS_LOG_TYPE_DATA_PARITY 0x00000005
#define RTAS_LOG_TYPE_ADDR_PARITY 0x00000006
#define RTAS_LOG_TYPE_CACHE_PARITY 0x00000007
#define RTAS_LOG_TYPE_ADDR_INVALID 0x00000008
#define RTAS_LOG_TYPE_ECC_UNCORR 0x00000009
#define RTAS_LOG_TYPE_ECC_CORR 0x0000000a
#define RTAS_LOG_TYPE_EPOW 0x00000040
uint32_t extended_length;
} QEMU_PACKED;
struct rtas_event_log_v6 {
uint8_t b0;
#define RTAS_LOG_V6_B0_VALID 0x80
#define RTAS_LOG_V6_B0_UNRECOVERABLE_ERROR 0x40
#define RTAS_LOG_V6_B0_RECOVERABLE_ERROR 0x20
#define RTAS_LOG_V6_B0_DEGRADED_OPERATION 0x10
#define RTAS_LOG_V6_B0_PREDICTIVE_ERROR 0x08
#define RTAS_LOG_V6_B0_NEW_LOG 0x04
#define RTAS_LOG_V6_B0_BIGENDIAN 0x02
uint8_t _resv1;
uint8_t b2;
#define RTAS_LOG_V6_B2_POWERPC_FORMAT 0x80
#define RTAS_LOG_V6_B2_LOG_FORMAT_MASK 0x0f
#define RTAS_LOG_V6_B2_LOG_FORMAT_PLATFORM_EVENT 0x0e
uint8_t _resv2[9];
uint32_t company;
#define RTAS_LOG_V6_COMPANY_IBM 0x49424d00 /* IBM<null> */
} QEMU_PACKED;
struct rtas_event_log_v6_section_header {
uint16_t section_id;
uint16_t section_length;
uint8_t section_version;
uint8_t section_subtype;
uint16_t creator_component_id;
} QEMU_PACKED;
struct rtas_event_log_v6_maina {
#define RTAS_LOG_V6_SECTION_ID_MAINA 0x5048 /* PH */
struct rtas_event_log_v6_section_header hdr;
uint32_t creation_date; /* BCD: YYYYMMDD */
uint32_t creation_time; /* BCD: HHMMSS00 */
uint8_t _platform1[8];
char creator_id;
uint8_t _resv1[2];
uint8_t section_count;
uint8_t _resv2[4];
uint8_t _platform2[8];
uint32_t plid;
uint8_t _platform3[4];
} QEMU_PACKED;
struct rtas_event_log_v6_mainb {
#define RTAS_LOG_V6_SECTION_ID_MAINB 0x5548 /* UH */
struct rtas_event_log_v6_section_header hdr;
uint8_t subsystem_id;
uint8_t _platform1;
uint8_t event_severity;
uint8_t event_subtype;
uint8_t _platform2[4];
uint8_t _resv1[2];
uint16_t action_flags;
uint8_t _resv2[4];
} QEMU_PACKED;
struct rtas_event_log_v6_epow {
#define RTAS_LOG_V6_SECTION_ID_EPOW 0x4550 /* EP */
struct rtas_event_log_v6_section_header hdr;
uint8_t sensor_value;
#define RTAS_LOG_V6_EPOW_ACTION_RESET 0
#define RTAS_LOG_V6_EPOW_ACTION_WARN_COOLING 1
#define RTAS_LOG_V6_EPOW_ACTION_WARN_POWER 2
#define RTAS_LOG_V6_EPOW_ACTION_SYSTEM_SHUTDOWN 3
#define RTAS_LOG_V6_EPOW_ACTION_SYSTEM_HALT 4
#define RTAS_LOG_V6_EPOW_ACTION_MAIN_ENCLOSURE 5
#define RTAS_LOG_V6_EPOW_ACTION_POWER_OFF 7
uint8_t event_modifier;
#define RTAS_LOG_V6_EPOW_MODIFIER_NORMAL 1
#define RTAS_LOG_V6_EPOW_MODIFIER_ON_UPS 2
#define RTAS_LOG_V6_EPOW_MODIFIER_CRITICAL 3
#define RTAS_LOG_V6_EPOW_MODIFIER_TEMPERATURE 4
uint8_t extended_modifier;
#define RTAS_LOG_V6_EPOW_XMODIFIER_SYSTEM_WIDE 0
#define RTAS_LOG_V6_EPOW_XMODIFIER_PARTITION_SPECIFIC 1
uint8_t _resv;
uint64_t reason_code;
} QEMU_PACKED;
struct epow_log_full {
struct rtas_error_log hdr;
struct rtas_event_log_v6 v6hdr;
struct rtas_event_log_v6_maina maina;
struct rtas_event_log_v6_mainb mainb;
struct rtas_event_log_v6_epow epow;
} QEMU_PACKED;
#define EVENT_MASK_INTERNAL_ERRORS 0x80000000
#define EVENT_MASK_EPOW 0x40000000
#define EVENT_MASK_HOTPLUG 0x10000000
#define EVENT_MASK_IO 0x08000000
#define _FDT(exp) \
do { \
int ret = (exp); \
if (ret < 0) { \
fprintf(stderr, "qemu: error creating device tree: %s: %s\n", \
#exp, fdt_strerror(ret)); \
exit(1); \
} \
} while (0)
void spapr_events_fdt_skel(void *fdt, uint32_t epow_irq)
{
uint32_t epow_irq_ranges[] = {cpu_to_be32(epow_irq), cpu_to_be32(1)};
uint32_t epow_interrupts[] = {cpu_to_be32(epow_irq), 0};
_FDT((fdt_begin_node(fdt, "event-sources")));
_FDT((fdt_property(fdt, "interrupt-controller", NULL, 0)));
_FDT((fdt_property_cell(fdt, "#interrupt-cells", 2)));
_FDT((fdt_property(fdt, "interrupt-ranges",
epow_irq_ranges, sizeof(epow_irq_ranges))));
_FDT((fdt_begin_node(fdt, "epow-events")));
_FDT((fdt_property(fdt, "interrupts",
epow_interrupts, sizeof(epow_interrupts))));
_FDT((fdt_end_node(fdt)));
_FDT((fdt_end_node(fdt)));
}
static struct epow_log_full *pending_epow;
static uint32_t next_plid;
static void spapr_powerdown_req(Notifier *n, void *opaque)
{
sPAPREnvironment *spapr = container_of(n, sPAPREnvironment, epow_notifier);
struct rtas_error_log *hdr;
struct rtas_event_log_v6 *v6hdr;
struct rtas_event_log_v6_maina *maina;
struct rtas_event_log_v6_mainb *mainb;
struct rtas_event_log_v6_epow *epow;
struct tm tm;
int year;
if (pending_epow) {
/* For now, we just throw away earlier events if two come
* along before any are consumed. This is sufficient for our
* powerdown messages, but we'll need more if we do more
* general error/event logging */
g_free(pending_epow);
}
pending_epow = g_malloc0(sizeof(*pending_epow));
hdr = &pending_epow->hdr;
v6hdr = &pending_epow->v6hdr;
maina = &pending_epow->maina;
mainb = &pending_epow->mainb;
epow = &pending_epow->epow;
hdr->summary = cpu_to_be32(RTAS_LOG_VERSION_6
| RTAS_LOG_SEVERITY_EVENT
| RTAS_LOG_DISPOSITION_NOT_RECOVERED
| RTAS_LOG_OPTIONAL_PART_PRESENT
| RTAS_LOG_TYPE_EPOW);
hdr->extended_length = cpu_to_be32(sizeof(*pending_epow)
- sizeof(pending_epow->hdr));
v6hdr->b0 = RTAS_LOG_V6_B0_VALID | RTAS_LOG_V6_B0_NEW_LOG
| RTAS_LOG_V6_B0_BIGENDIAN;
v6hdr->b2 = RTAS_LOG_V6_B2_POWERPC_FORMAT
| RTAS_LOG_V6_B2_LOG_FORMAT_PLATFORM_EVENT;
v6hdr->company = cpu_to_be32(RTAS_LOG_V6_COMPANY_IBM);
maina->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINA);
maina->hdr.section_length = cpu_to_be16(sizeof(*maina));
/* FIXME: section version, subtype and creator id? */
qemu_get_timedate(&tm, spapr->rtc_offset);
year = tm.tm_year + 1900;
maina->creation_date = cpu_to_be32((to_bcd(year / 100) << 24)
| (to_bcd(year % 100) << 16)
| (to_bcd(tm.tm_mon + 1) << 8)
| to_bcd(tm.tm_mday));
maina->creation_time = cpu_to_be32((to_bcd(tm.tm_hour) << 24)
| (to_bcd(tm.tm_min) << 16)
| (to_bcd(tm.tm_sec) << 8));
maina->creator_id = 'H'; /* Hypervisor */
maina->section_count = 3; /* Main-A, Main-B and EPOW */
maina->plid = next_plid++;
mainb->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINB);
mainb->hdr.section_length = cpu_to_be16(sizeof(*mainb));
/* FIXME: section version, subtype and creator id? */
mainb->subsystem_id = 0xa0; /* External environment */
mainb->event_severity = 0x00; /* Informational / non-error */
mainb->event_subtype = 0xd0; /* Normal shutdown */
epow->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_EPOW);
epow->hdr.section_length = cpu_to_be16(sizeof(*epow));
epow->hdr.section_version = 2; /* includes extended modifier */
/* FIXME: section subtype and creator id? */
epow->sensor_value = RTAS_LOG_V6_EPOW_ACTION_SYSTEM_SHUTDOWN;
epow->event_modifier = RTAS_LOG_V6_EPOW_MODIFIER_NORMAL;
epow->extended_modifier = RTAS_LOG_V6_EPOW_XMODIFIER_PARTITION_SPECIFIC;
qemu_irq_pulse(xics_get_qirq(spapr->icp, spapr->epow_irq));
}
static void check_exception(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
{
uint32_t mask, buf, len;
uint64_t xinfo;
if ((nargs < 6) || (nargs > 7) || nret != 1) {
rtas_st(rets, 0, -3);
return;
}
xinfo = rtas_ld(args, 1);
mask = rtas_ld(args, 2);
buf = rtas_ld(args, 4);
len = rtas_ld(args, 5);
if (nargs == 7) {
xinfo |= (uint64_t)rtas_ld(args, 6) << 32;
}
if ((mask & EVENT_MASK_EPOW) && pending_epow) {
if (sizeof(*pending_epow) < len) {
len = sizeof(*pending_epow);
}
cpu_physical_memory_write(buf, pending_epow, len);
g_free(pending_epow);
pending_epow = NULL;
rtas_st(rets, 0, 0);
} else {
rtas_st(rets, 0, 1);
}
}
void spapr_events_init(sPAPREnvironment *spapr)
{
spapr->epow_irq = spapr_allocate_msi(0);
spapr->epow_notifier.notify = spapr_powerdown_req;
qemu_register_powerdown_notifier(&spapr->epow_notifier);
spapr_rtas_register("check-exception", check_exception);
}
|
