David Gibson | 74d042e | 2012-10-08 18:17:39 +0000 | [diff] [blame] | 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 | */ |
| 27 | #include "cpu.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 28 | #include "sysemu/sysemu.h" |
Paolo Bonzini | dccfcd0 | 2013-04-08 16:55:25 +0200 | [diff] [blame] | 29 | #include "sysemu/char.h" |
David Gibson | 74d042e | 2012-10-08 18:17:39 +0000 | [diff] [blame] | 30 | #include "hw/qdev.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 31 | #include "sysemu/device_tree.h" |
David Gibson | 74d042e | 2012-10-08 18:17:39 +0000 | [diff] [blame] | 32 | |
Paolo Bonzini | 0d09e41 | 2013-02-05 17:06:20 +0100 | [diff] [blame] | 33 | #include "hw/ppc/spapr.h" |
| 34 | #include "hw/ppc/spapr_vio.h" |
David Gibson | 74d042e | 2012-10-08 18:17:39 +0000 | [diff] [blame] | 35 | |
| 36 | #include <libfdt.h> |
| 37 | |
| 38 | struct rtas_error_log { |
| 39 | uint32_t summary; |
| 40 | #define RTAS_LOG_VERSION_MASK 0xff000000 |
| 41 | #define RTAS_LOG_VERSION_6 0x06000000 |
| 42 | #define RTAS_LOG_SEVERITY_MASK 0x00e00000 |
| 43 | #define RTAS_LOG_SEVERITY_ALREADY_REPORTED 0x00c00000 |
| 44 | #define RTAS_LOG_SEVERITY_FATAL 0x00a00000 |
| 45 | #define RTAS_LOG_SEVERITY_ERROR 0x00800000 |
| 46 | #define RTAS_LOG_SEVERITY_ERROR_SYNC 0x00600000 |
| 47 | #define RTAS_LOG_SEVERITY_WARNING 0x00400000 |
| 48 | #define RTAS_LOG_SEVERITY_EVENT 0x00200000 |
| 49 | #define RTAS_LOG_SEVERITY_NO_ERROR 0x00000000 |
| 50 | #define RTAS_LOG_DISPOSITION_MASK 0x00180000 |
| 51 | #define RTAS_LOG_DISPOSITION_FULLY_RECOVERED 0x00000000 |
| 52 | #define RTAS_LOG_DISPOSITION_LIMITED_RECOVERY 0x00080000 |
| 53 | #define RTAS_LOG_DISPOSITION_NOT_RECOVERED 0x00100000 |
| 54 | #define RTAS_LOG_OPTIONAL_PART_PRESENT 0x00040000 |
| 55 | #define RTAS_LOG_INITIATOR_MASK 0x0000f000 |
| 56 | #define RTAS_LOG_INITIATOR_UNKNOWN 0x00000000 |
| 57 | #define RTAS_LOG_INITIATOR_CPU 0x00001000 |
| 58 | #define RTAS_LOG_INITIATOR_PCI 0x00002000 |
| 59 | #define RTAS_LOG_INITIATOR_MEMORY 0x00004000 |
| 60 | #define RTAS_LOG_INITIATOR_HOTPLUG 0x00006000 |
| 61 | #define RTAS_LOG_TARGET_MASK 0x00000f00 |
| 62 | #define RTAS_LOG_TARGET_UNKNOWN 0x00000000 |
| 63 | #define RTAS_LOG_TARGET_CPU 0x00000100 |
| 64 | #define RTAS_LOG_TARGET_PCI 0x00000200 |
| 65 | #define RTAS_LOG_TARGET_MEMORY 0x00000400 |
| 66 | #define RTAS_LOG_TARGET_HOTPLUG 0x00000600 |
| 67 | #define RTAS_LOG_TYPE_MASK 0x000000ff |
| 68 | #define RTAS_LOG_TYPE_OTHER 0x00000000 |
| 69 | #define RTAS_LOG_TYPE_RETRY 0x00000001 |
| 70 | #define RTAS_LOG_TYPE_TCE_ERR 0x00000002 |
| 71 | #define RTAS_LOG_TYPE_INTERN_DEV_FAIL 0x00000003 |
| 72 | #define RTAS_LOG_TYPE_TIMEOUT 0x00000004 |
| 73 | #define RTAS_LOG_TYPE_DATA_PARITY 0x00000005 |
| 74 | #define RTAS_LOG_TYPE_ADDR_PARITY 0x00000006 |
| 75 | #define RTAS_LOG_TYPE_CACHE_PARITY 0x00000007 |
| 76 | #define RTAS_LOG_TYPE_ADDR_INVALID 0x00000008 |
| 77 | #define RTAS_LOG_TYPE_ECC_UNCORR 0x00000009 |
| 78 | #define RTAS_LOG_TYPE_ECC_CORR 0x0000000a |
| 79 | #define RTAS_LOG_TYPE_EPOW 0x00000040 |
| 80 | uint32_t extended_length; |
| 81 | } QEMU_PACKED; |
| 82 | |
| 83 | struct rtas_event_log_v6 { |
| 84 | uint8_t b0; |
| 85 | #define RTAS_LOG_V6_B0_VALID 0x80 |
| 86 | #define RTAS_LOG_V6_B0_UNRECOVERABLE_ERROR 0x40 |
| 87 | #define RTAS_LOG_V6_B0_RECOVERABLE_ERROR 0x20 |
| 88 | #define RTAS_LOG_V6_B0_DEGRADED_OPERATION 0x10 |
| 89 | #define RTAS_LOG_V6_B0_PREDICTIVE_ERROR 0x08 |
| 90 | #define RTAS_LOG_V6_B0_NEW_LOG 0x04 |
| 91 | #define RTAS_LOG_V6_B0_BIGENDIAN 0x02 |
| 92 | uint8_t _resv1; |
| 93 | uint8_t b2; |
| 94 | #define RTAS_LOG_V6_B2_POWERPC_FORMAT 0x80 |
| 95 | #define RTAS_LOG_V6_B2_LOG_FORMAT_MASK 0x0f |
| 96 | #define RTAS_LOG_V6_B2_LOG_FORMAT_PLATFORM_EVENT 0x0e |
| 97 | uint8_t _resv2[9]; |
| 98 | uint32_t company; |
| 99 | #define RTAS_LOG_V6_COMPANY_IBM 0x49424d00 /* IBM<null> */ |
| 100 | } QEMU_PACKED; |
| 101 | |
| 102 | struct rtas_event_log_v6_section_header { |
| 103 | uint16_t section_id; |
| 104 | uint16_t section_length; |
| 105 | uint8_t section_version; |
| 106 | uint8_t section_subtype; |
| 107 | uint16_t creator_component_id; |
| 108 | } QEMU_PACKED; |
| 109 | |
| 110 | struct rtas_event_log_v6_maina { |
| 111 | #define RTAS_LOG_V6_SECTION_ID_MAINA 0x5048 /* PH */ |
| 112 | struct rtas_event_log_v6_section_header hdr; |
| 113 | uint32_t creation_date; /* BCD: YYYYMMDD */ |
| 114 | uint32_t creation_time; /* BCD: HHMMSS00 */ |
| 115 | uint8_t _platform1[8]; |
| 116 | char creator_id; |
| 117 | uint8_t _resv1[2]; |
| 118 | uint8_t section_count; |
| 119 | uint8_t _resv2[4]; |
| 120 | uint8_t _platform2[8]; |
| 121 | uint32_t plid; |
| 122 | uint8_t _platform3[4]; |
| 123 | } QEMU_PACKED; |
| 124 | |
| 125 | struct rtas_event_log_v6_mainb { |
| 126 | #define RTAS_LOG_V6_SECTION_ID_MAINB 0x5548 /* UH */ |
| 127 | struct rtas_event_log_v6_section_header hdr; |
| 128 | uint8_t subsystem_id; |
| 129 | uint8_t _platform1; |
| 130 | uint8_t event_severity; |
| 131 | uint8_t event_subtype; |
| 132 | uint8_t _platform2[4]; |
| 133 | uint8_t _resv1[2]; |
| 134 | uint16_t action_flags; |
| 135 | uint8_t _resv2[4]; |
| 136 | } QEMU_PACKED; |
| 137 | |
| 138 | struct rtas_event_log_v6_epow { |
| 139 | #define RTAS_LOG_V6_SECTION_ID_EPOW 0x4550 /* EP */ |
| 140 | struct rtas_event_log_v6_section_header hdr; |
| 141 | uint8_t sensor_value; |
| 142 | #define RTAS_LOG_V6_EPOW_ACTION_RESET 0 |
| 143 | #define RTAS_LOG_V6_EPOW_ACTION_WARN_COOLING 1 |
| 144 | #define RTAS_LOG_V6_EPOW_ACTION_WARN_POWER 2 |
| 145 | #define RTAS_LOG_V6_EPOW_ACTION_SYSTEM_SHUTDOWN 3 |
| 146 | #define RTAS_LOG_V6_EPOW_ACTION_SYSTEM_HALT 4 |
| 147 | #define RTAS_LOG_V6_EPOW_ACTION_MAIN_ENCLOSURE 5 |
| 148 | #define RTAS_LOG_V6_EPOW_ACTION_POWER_OFF 7 |
| 149 | uint8_t event_modifier; |
| 150 | #define RTAS_LOG_V6_EPOW_MODIFIER_NORMAL 1 |
| 151 | #define RTAS_LOG_V6_EPOW_MODIFIER_ON_UPS 2 |
| 152 | #define RTAS_LOG_V6_EPOW_MODIFIER_CRITICAL 3 |
| 153 | #define RTAS_LOG_V6_EPOW_MODIFIER_TEMPERATURE 4 |
| 154 | uint8_t extended_modifier; |
| 155 | #define RTAS_LOG_V6_EPOW_XMODIFIER_SYSTEM_WIDE 0 |
| 156 | #define RTAS_LOG_V6_EPOW_XMODIFIER_PARTITION_SPECIFIC 1 |
| 157 | uint8_t _resv; |
| 158 | uint64_t reason_code; |
| 159 | } QEMU_PACKED; |
| 160 | |
| 161 | struct epow_log_full { |
| 162 | struct rtas_error_log hdr; |
| 163 | struct rtas_event_log_v6 v6hdr; |
| 164 | struct rtas_event_log_v6_maina maina; |
| 165 | struct rtas_event_log_v6_mainb mainb; |
| 166 | struct rtas_event_log_v6_epow epow; |
| 167 | } QEMU_PACKED; |
| 168 | |
| 169 | #define EVENT_MASK_INTERNAL_ERRORS 0x80000000 |
| 170 | #define EVENT_MASK_EPOW 0x40000000 |
| 171 | #define EVENT_MASK_HOTPLUG 0x10000000 |
| 172 | #define EVENT_MASK_IO 0x08000000 |
| 173 | |
| 174 | #define _FDT(exp) \ |
| 175 | do { \ |
| 176 | int ret = (exp); \ |
| 177 | if (ret < 0) { \ |
| 178 | fprintf(stderr, "qemu: error creating device tree: %s: %s\n", \ |
| 179 | #exp, fdt_strerror(ret)); \ |
| 180 | exit(1); \ |
| 181 | } \ |
| 182 | } while (0) |
| 183 | |
| 184 | void spapr_events_fdt_skel(void *fdt, uint32_t epow_irq) |
| 185 | { |
| 186 | uint32_t epow_irq_ranges[] = {cpu_to_be32(epow_irq), cpu_to_be32(1)}; |
| 187 | uint32_t epow_interrupts[] = {cpu_to_be32(epow_irq), 0}; |
| 188 | |
| 189 | _FDT((fdt_begin_node(fdt, "event-sources"))); |
| 190 | |
| 191 | _FDT((fdt_property(fdt, "interrupt-controller", NULL, 0))); |
| 192 | _FDT((fdt_property_cell(fdt, "#interrupt-cells", 2))); |
| 193 | _FDT((fdt_property(fdt, "interrupt-ranges", |
| 194 | epow_irq_ranges, sizeof(epow_irq_ranges)))); |
| 195 | |
| 196 | _FDT((fdt_begin_node(fdt, "epow-events"))); |
| 197 | _FDT((fdt_property(fdt, "interrupts", |
| 198 | epow_interrupts, sizeof(epow_interrupts)))); |
| 199 | _FDT((fdt_end_node(fdt))); |
| 200 | |
| 201 | _FDT((fdt_end_node(fdt))); |
| 202 | } |
| 203 | |
| 204 | static struct epow_log_full *pending_epow; |
| 205 | static uint32_t next_plid; |
| 206 | |
| 207 | static void spapr_powerdown_req(Notifier *n, void *opaque) |
| 208 | { |
| 209 | sPAPREnvironment *spapr = container_of(n, sPAPREnvironment, epow_notifier); |
| 210 | struct rtas_error_log *hdr; |
| 211 | struct rtas_event_log_v6 *v6hdr; |
| 212 | struct rtas_event_log_v6_maina *maina; |
| 213 | struct rtas_event_log_v6_mainb *mainb; |
| 214 | struct rtas_event_log_v6_epow *epow; |
| 215 | struct tm tm; |
| 216 | int year; |
| 217 | |
| 218 | if (pending_epow) { |
| 219 | /* For now, we just throw away earlier events if two come |
| 220 | * along before any are consumed. This is sufficient for our |
| 221 | * powerdown messages, but we'll need more if we do more |
| 222 | * general error/event logging */ |
| 223 | g_free(pending_epow); |
| 224 | } |
| 225 | pending_epow = g_malloc0(sizeof(*pending_epow)); |
| 226 | hdr = &pending_epow->hdr; |
| 227 | v6hdr = &pending_epow->v6hdr; |
| 228 | maina = &pending_epow->maina; |
| 229 | mainb = &pending_epow->mainb; |
| 230 | epow = &pending_epow->epow; |
| 231 | |
| 232 | hdr->summary = cpu_to_be32(RTAS_LOG_VERSION_6 |
| 233 | | RTAS_LOG_SEVERITY_EVENT |
| 234 | | RTAS_LOG_DISPOSITION_NOT_RECOVERED |
| 235 | | RTAS_LOG_OPTIONAL_PART_PRESENT |
| 236 | | RTAS_LOG_TYPE_EPOW); |
| 237 | hdr->extended_length = cpu_to_be32(sizeof(*pending_epow) |
| 238 | - sizeof(pending_epow->hdr)); |
| 239 | |
| 240 | v6hdr->b0 = RTAS_LOG_V6_B0_VALID | RTAS_LOG_V6_B0_NEW_LOG |
| 241 | | RTAS_LOG_V6_B0_BIGENDIAN; |
| 242 | v6hdr->b2 = RTAS_LOG_V6_B2_POWERPC_FORMAT |
| 243 | | RTAS_LOG_V6_B2_LOG_FORMAT_PLATFORM_EVENT; |
| 244 | v6hdr->company = cpu_to_be32(RTAS_LOG_V6_COMPANY_IBM); |
| 245 | |
| 246 | maina->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINA); |
| 247 | maina->hdr.section_length = cpu_to_be16(sizeof(*maina)); |
| 248 | /* FIXME: section version, subtype and creator id? */ |
| 249 | qemu_get_timedate(&tm, spapr->rtc_offset); |
| 250 | year = tm.tm_year + 1900; |
| 251 | maina->creation_date = cpu_to_be32((to_bcd(year / 100) << 24) |
| 252 | | (to_bcd(year % 100) << 16) |
| 253 | | (to_bcd(tm.tm_mon + 1) << 8) |
| 254 | | to_bcd(tm.tm_mday)); |
| 255 | maina->creation_time = cpu_to_be32((to_bcd(tm.tm_hour) << 24) |
| 256 | | (to_bcd(tm.tm_min) << 16) |
| 257 | | (to_bcd(tm.tm_sec) << 8)); |
| 258 | maina->creator_id = 'H'; /* Hypervisor */ |
| 259 | maina->section_count = 3; /* Main-A, Main-B and EPOW */ |
| 260 | maina->plid = next_plid++; |
| 261 | |
| 262 | mainb->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINB); |
| 263 | mainb->hdr.section_length = cpu_to_be16(sizeof(*mainb)); |
| 264 | /* FIXME: section version, subtype and creator id? */ |
| 265 | mainb->subsystem_id = 0xa0; /* External environment */ |
| 266 | mainb->event_severity = 0x00; /* Informational / non-error */ |
| 267 | mainb->event_subtype = 0xd0; /* Normal shutdown */ |
| 268 | |
| 269 | epow->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_EPOW); |
| 270 | epow->hdr.section_length = cpu_to_be16(sizeof(*epow)); |
| 271 | epow->hdr.section_version = 2; /* includes extended modifier */ |
| 272 | /* FIXME: section subtype and creator id? */ |
| 273 | epow->sensor_value = RTAS_LOG_V6_EPOW_ACTION_SYSTEM_SHUTDOWN; |
| 274 | epow->event_modifier = RTAS_LOG_V6_EPOW_MODIFIER_NORMAL; |
| 275 | epow->extended_modifier = RTAS_LOG_V6_EPOW_XMODIFIER_PARTITION_SPECIFIC; |
| 276 | |
| 277 | qemu_irq_pulse(xics_get_qirq(spapr->icp, spapr->epow_irq)); |
| 278 | } |
| 279 | |
Anthony Liguori | 210b580 | 2013-06-19 15:40:30 -0500 | [diff] [blame] | 280 | static void check_exception(PowerPCCPU *cpu, sPAPREnvironment *spapr, |
David Gibson | 74d042e | 2012-10-08 18:17:39 +0000 | [diff] [blame] | 281 | uint32_t token, uint32_t nargs, |
| 282 | target_ulong args, |
| 283 | uint32_t nret, target_ulong rets) |
| 284 | { |
| 285 | uint32_t mask, buf, len; |
| 286 | uint64_t xinfo; |
| 287 | |
| 288 | if ((nargs < 6) || (nargs > 7) || nret != 1) { |
Alexey Kardashevskiy | a64d325 | 2013-11-19 15:28:54 +1100 | [diff] [blame] | 289 | rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); |
David Gibson | 74d042e | 2012-10-08 18:17:39 +0000 | [diff] [blame] | 290 | return; |
| 291 | } |
| 292 | |
| 293 | xinfo = rtas_ld(args, 1); |
| 294 | mask = rtas_ld(args, 2); |
| 295 | buf = rtas_ld(args, 4); |
| 296 | len = rtas_ld(args, 5); |
| 297 | if (nargs == 7) { |
| 298 | xinfo |= (uint64_t)rtas_ld(args, 6) << 32; |
| 299 | } |
| 300 | |
| 301 | if ((mask & EVENT_MASK_EPOW) && pending_epow) { |
| 302 | if (sizeof(*pending_epow) < len) { |
| 303 | len = sizeof(*pending_epow); |
| 304 | } |
| 305 | |
| 306 | cpu_physical_memory_write(buf, pending_epow, len); |
| 307 | g_free(pending_epow); |
| 308 | pending_epow = NULL; |
Alexey Kardashevskiy | a64d325 | 2013-11-19 15:28:54 +1100 | [diff] [blame] | 309 | rtas_st(rets, 0, RTAS_OUT_SUCCESS); |
David Gibson | 74d042e | 2012-10-08 18:17:39 +0000 | [diff] [blame] | 310 | } else { |
Alexey Kardashevskiy | a64d325 | 2013-11-19 15:28:54 +1100 | [diff] [blame] | 311 | rtas_st(rets, 0, RTAS_OUT_NO_ERRORS_FOUND); |
David Gibson | 74d042e | 2012-10-08 18:17:39 +0000 | [diff] [blame] | 312 | } |
| 313 | } |
| 314 | |
| 315 | void spapr_events_init(sPAPREnvironment *spapr) |
| 316 | { |
| 317 | spapr->epow_irq = spapr_allocate_msi(0); |
| 318 | spapr->epow_notifier.notify = spapr_powerdown_req; |
| 319 | qemu_register_powerdown_notifier(&spapr->epow_notifier); |
| 320 | spapr_rtas_register("check-exception", check_exception); |
| 321 | } |