1 // SPDX-License-Identifier: GPL-2.0
3 * UEFI Common Platform Error Record (CPER) support
5 * Copyright (C) 2010, Intel Corp.
8 * CPER is the format used to describe platform hardware error by
9 * various tables, such as ERST, BERT and HEST etc.
11 * For more information about CPER, please refer to Appendix N of UEFI
12 * Specification version 2.4.
15 #include <linux/kernel.h>
16 #include <linux/module.h>
17 #include <linux/time.h>
18 #include <linux/cper.h>
19 #include <linux/dmi.h>
20 #include <linux/acpi.h>
21 #include <linux/pci.h>
22 #include <linux/aer.h>
23 #include <linux/printk.h>
24 #include <linux/bcd.h>
25 #include <acpi/ghes.h>
26 #include <ras/ras_event.h>
29 * CPER record ID need to be unique even after reboot, because record
30 * ID is used as index for ERST storage, while CPER records from
31 * multiple boot may co-exist in ERST.
33 u64 cper_next_record_id(void)
35 static atomic64_t seq;
37 if (!atomic64_read(&seq)) {
38 time64_t time = ktime_get_real_seconds();
41 * This code is unlikely to still be needed in year 2106,
42 * but just in case, let's use a few more bits for timestamps
43 * after y2038 to be sure they keep increasing monotonically
44 * for the next few hundred years...
46 if (time < 0x80000000)
47 atomic64_set(&seq, (ktime_get_real_seconds()) << 32);
49 atomic64_set(&seq, 0x8000000000000000ull |
50 ktime_get_real_seconds() << 24);
53 return atomic64_inc_return(&seq);
55 EXPORT_SYMBOL_GPL(cper_next_record_id);
57 static const char * const severity_strs[] = {
64 const char *cper_severity_str(unsigned int severity)
66 return severity < ARRAY_SIZE(severity_strs) ?
67 severity_strs[severity] : "unknown";
69 EXPORT_SYMBOL_GPL(cper_severity_str);
72 * cper_print_bits - print strings for set bits
73 * @pfx: prefix for each line, including log level and prefix string
75 * @strs: string array, indexed by bit position
76 * @strs_size: size of the string array: @strs
78 * For each set bit in @bits, print the corresponding string in @strs.
79 * If the output length is longer than 80, multiple line will be
80 * printed, with @pfx is printed at the beginning of each line.
82 void cper_print_bits(const char *pfx, unsigned int bits,
83 const char * const strs[], unsigned int strs_size)
89 for (i = 0; i < strs_size; i++) {
90 if (!(bits & (1U << i)))
95 if (len && len + strlen(str) + 2 > 80) {
100 len = snprintf(buf, sizeof(buf), "%s%s", pfx, str);
102 len += scnprintf(buf+len, sizeof(buf)-len, ", %s", str);
108 static const char * const proc_type_strs[] = {
114 static const char * const proc_isa_strs[] = {
122 const char * const cper_proc_error_type_strs[] = {
126 "micro-architectural error",
129 static const char * const proc_op_strs[] = {
130 "unknown or generic",
133 "instruction execution",
136 static const char * const proc_flag_strs[] = {
143 static void cper_print_proc_generic(const char *pfx,
144 const struct cper_sec_proc_generic *proc)
146 if (proc->validation_bits & CPER_PROC_VALID_TYPE)
147 printk("%s""processor_type: %d, %s\n", pfx, proc->proc_type,
148 proc->proc_type < ARRAY_SIZE(proc_type_strs) ?
149 proc_type_strs[proc->proc_type] : "unknown");
150 if (proc->validation_bits & CPER_PROC_VALID_ISA)
151 printk("%s""processor_isa: %d, %s\n", pfx, proc->proc_isa,
152 proc->proc_isa < ARRAY_SIZE(proc_isa_strs) ?
153 proc_isa_strs[proc->proc_isa] : "unknown");
154 if (proc->validation_bits & CPER_PROC_VALID_ERROR_TYPE) {
155 printk("%s""error_type: 0x%02x\n", pfx, proc->proc_error_type);
156 cper_print_bits(pfx, proc->proc_error_type,
157 cper_proc_error_type_strs,
158 ARRAY_SIZE(cper_proc_error_type_strs));
160 if (proc->validation_bits & CPER_PROC_VALID_OPERATION)
161 printk("%s""operation: %d, %s\n", pfx, proc->operation,
162 proc->operation < ARRAY_SIZE(proc_op_strs) ?
163 proc_op_strs[proc->operation] : "unknown");
164 if (proc->validation_bits & CPER_PROC_VALID_FLAGS) {
165 printk("%s""flags: 0x%02x\n", pfx, proc->flags);
166 cper_print_bits(pfx, proc->flags, proc_flag_strs,
167 ARRAY_SIZE(proc_flag_strs));
169 if (proc->validation_bits & CPER_PROC_VALID_LEVEL)
170 printk("%s""level: %d\n", pfx, proc->level);
171 if (proc->validation_bits & CPER_PROC_VALID_VERSION)
172 printk("%s""version_info: 0x%016llx\n", pfx, proc->cpu_version);
173 if (proc->validation_bits & CPER_PROC_VALID_ID)
174 printk("%s""processor_id: 0x%016llx\n", pfx, proc->proc_id);
175 if (proc->validation_bits & CPER_PROC_VALID_TARGET_ADDRESS)
176 printk("%s""target_address: 0x%016llx\n",
177 pfx, proc->target_addr);
178 if (proc->validation_bits & CPER_PROC_VALID_REQUESTOR_ID)
179 printk("%s""requestor_id: 0x%016llx\n",
180 pfx, proc->requestor_id);
181 if (proc->validation_bits & CPER_PROC_VALID_RESPONDER_ID)
182 printk("%s""responder_id: 0x%016llx\n",
183 pfx, proc->responder_id);
184 if (proc->validation_bits & CPER_PROC_VALID_IP)
185 printk("%s""IP: 0x%016llx\n", pfx, proc->ip);
188 static const char * const mem_err_type_strs[] = {
193 "single-symbol chipkill ECC",
194 "multi-symbol chipkill ECC",
202 "scrub corrected error",
203 "scrub uncorrected error",
204 "physical memory map-out event",
207 const char *cper_mem_err_type_str(unsigned int etype)
209 return etype < ARRAY_SIZE(mem_err_type_strs) ?
210 mem_err_type_strs[etype] : "unknown";
212 EXPORT_SYMBOL_GPL(cper_mem_err_type_str);
214 const char *cper_mem_err_status_str(u64 status)
216 switch ((status >> 8) & 0xff) {
217 case 1: return "Error detected internal to the component";
218 case 4: return "Storage error in DRAM memory";
219 case 5: return "Storage error in TLB";
220 case 6: return "Storage error in cache";
221 case 7: return "Error in one or more functional units";
222 case 8: return "Component failed self test";
223 case 9: return "Overflow or undervalue of internal queue";
224 case 16: return "Error detected in the bus";
225 case 17: return "Virtual address not found on IO-TLB or IO-PDIR";
226 case 18: return "Improper access error";
227 case 19: return "Access to a memory address which is not mapped to any component";
228 case 20: return "Loss of Lockstep";
229 case 21: return "Response not associated with a request";
230 case 22: return "Bus parity error - must also set the A, C, or D Bits";
231 case 23: return "Detection of a protocol error";
232 case 24: return "Detection of a PATH_ERROR";
233 case 25: return "Bus operation timeout";
234 case 26: return "A read was issued to data that has been poisoned";
235 default: return "Reserved";
238 EXPORT_SYMBOL_GPL(cper_mem_err_status_str);
240 int cper_mem_err_location(struct cper_mem_err_compact *mem, char *msg)
249 if (mem->validation_bits & CPER_MEM_VALID_NODE)
250 n += scnprintf(msg + n, len - n, "node:%d ", mem->node);
251 if (mem->validation_bits & CPER_MEM_VALID_CARD)
252 n += scnprintf(msg + n, len - n, "card:%d ", mem->card);
253 if (mem->validation_bits & CPER_MEM_VALID_MODULE)
254 n += scnprintf(msg + n, len - n, "module:%d ", mem->module);
255 if (mem->validation_bits & CPER_MEM_VALID_RANK_NUMBER)
256 n += scnprintf(msg + n, len - n, "rank:%d ", mem->rank);
257 if (mem->validation_bits & CPER_MEM_VALID_BANK)
258 n += scnprintf(msg + n, len - n, "bank:%d ", mem->bank);
259 if (mem->validation_bits & CPER_MEM_VALID_BANK_GROUP)
260 n += scnprintf(msg + n, len - n, "bank_group:%d ",
261 mem->bank >> CPER_MEM_BANK_GROUP_SHIFT);
262 if (mem->validation_bits & CPER_MEM_VALID_BANK_ADDRESS)
263 n += scnprintf(msg + n, len - n, "bank_address:%d ",
264 mem->bank & CPER_MEM_BANK_ADDRESS_MASK);
265 if (mem->validation_bits & CPER_MEM_VALID_DEVICE)
266 n += scnprintf(msg + n, len - n, "device:%d ", mem->device);
267 if (mem->validation_bits & (CPER_MEM_VALID_ROW | CPER_MEM_VALID_ROW_EXT)) {
270 row |= cper_get_mem_extension(mem->validation_bits, mem->extended);
271 n += scnprintf(msg + n, len - n, "row:%d ", row);
273 if (mem->validation_bits & CPER_MEM_VALID_COLUMN)
274 n += scnprintf(msg + n, len - n, "column:%d ", mem->column);
275 if (mem->validation_bits & CPER_MEM_VALID_BIT_POSITION)
276 n += scnprintf(msg + n, len - n, "bit_position:%d ",
278 if (mem->validation_bits & CPER_MEM_VALID_REQUESTOR_ID)
279 n += scnprintf(msg + n, len - n, "requestor_id:0x%016llx ",
281 if (mem->validation_bits & CPER_MEM_VALID_RESPONDER_ID)
282 n += scnprintf(msg + n, len - n, "responder_id:0x%016llx ",
284 if (mem->validation_bits & CPER_MEM_VALID_TARGET_ID)
285 n += scnprintf(msg + n, len - n, "target_id:0x%016llx ",
287 if (mem->validation_bits & CPER_MEM_VALID_CHIP_ID)
288 n += scnprintf(msg + n, len - n, "chip_id:%d ",
289 mem->extended >> CPER_MEM_CHIP_ID_SHIFT);
294 int cper_dimm_err_location(struct cper_mem_err_compact *mem, char *msg)
297 const char *bank = NULL, *device = NULL;
299 if (!msg || !(mem->validation_bits & CPER_MEM_VALID_MODULE_HANDLE))
303 dmi_memdev_name(mem->mem_dev_handle, &bank, &device);
305 n = snprintf(msg, len, "DIMM location: %s %s ", bank, device);
307 n = snprintf(msg, len,
308 "DIMM location: not present. DMI handle: 0x%.4x ",
309 mem->mem_dev_handle);
314 void cper_mem_err_pack(const struct cper_sec_mem_err *mem,
315 struct cper_mem_err_compact *cmem)
317 cmem->validation_bits = mem->validation_bits;
318 cmem->node = mem->node;
319 cmem->card = mem->card;
320 cmem->module = mem->module;
321 cmem->bank = mem->bank;
322 cmem->device = mem->device;
323 cmem->row = mem->row;
324 cmem->column = mem->column;
325 cmem->bit_pos = mem->bit_pos;
326 cmem->requestor_id = mem->requestor_id;
327 cmem->responder_id = mem->responder_id;
328 cmem->target_id = mem->target_id;
329 cmem->extended = mem->extended;
330 cmem->rank = mem->rank;
331 cmem->mem_array_handle = mem->mem_array_handle;
332 cmem->mem_dev_handle = mem->mem_dev_handle;
335 const char *cper_mem_err_unpack(struct trace_seq *p,
336 struct cper_mem_err_compact *cmem)
338 const char *ret = trace_seq_buffer_ptr(p);
339 char rcd_decode_str[CPER_REC_LEN];
341 if (cper_mem_err_location(cmem, rcd_decode_str))
342 trace_seq_printf(p, "%s", rcd_decode_str);
343 if (cper_dimm_err_location(cmem, rcd_decode_str))
344 trace_seq_printf(p, "%s", rcd_decode_str);
345 trace_seq_putc(p, '\0');
350 static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem,
353 struct cper_mem_err_compact cmem;
354 char rcd_decode_str[CPER_REC_LEN];
356 /* Don't trust UEFI 2.1/2.2 structure with bad validation bits */
357 if (len == sizeof(struct cper_sec_mem_err_old) &&
358 (mem->validation_bits & ~(CPER_MEM_VALID_RANK_NUMBER - 1))) {
359 pr_err(FW_WARN "valid bits set for fields beyond structure\n");
362 if (mem->validation_bits & CPER_MEM_VALID_ERROR_STATUS)
363 printk("%s error_status: %s (0x%016llx)\n",
364 pfx, cper_mem_err_status_str(mem->error_status),
366 if (mem->validation_bits & CPER_MEM_VALID_PA)
367 printk("%s""physical_address: 0x%016llx\n",
368 pfx, mem->physical_addr);
369 if (mem->validation_bits & CPER_MEM_VALID_PA_MASK)
370 printk("%s""physical_address_mask: 0x%016llx\n",
371 pfx, mem->physical_addr_mask);
372 cper_mem_err_pack(mem, &cmem);
373 if (cper_mem_err_location(&cmem, rcd_decode_str))
374 printk("%s%s\n", pfx, rcd_decode_str);
375 if (mem->validation_bits & CPER_MEM_VALID_ERROR_TYPE) {
376 u8 etype = mem->error_type;
377 printk("%s""error_type: %d, %s\n", pfx, etype,
378 cper_mem_err_type_str(etype));
380 if (cper_dimm_err_location(&cmem, rcd_decode_str))
381 printk("%s%s\n", pfx, rcd_decode_str);
384 static const char * const pcie_port_type_strs[] = {
386 "legacy PCI end point",
390 "upstream switch port",
391 "downstream switch port",
392 "PCIe to PCI/PCI-X bridge",
393 "PCI/PCI-X to PCIe bridge",
394 "root complex integrated endpoint device",
395 "root complex event collector",
398 static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
399 const struct acpi_hest_generic_data *gdata)
401 if (pcie->validation_bits & CPER_PCIE_VALID_PORT_TYPE)
402 printk("%s""port_type: %d, %s\n", pfx, pcie->port_type,
403 pcie->port_type < ARRAY_SIZE(pcie_port_type_strs) ?
404 pcie_port_type_strs[pcie->port_type] : "unknown");
405 if (pcie->validation_bits & CPER_PCIE_VALID_VERSION)
406 printk("%s""version: %d.%d\n", pfx,
407 pcie->version.major, pcie->version.minor);
408 if (pcie->validation_bits & CPER_PCIE_VALID_COMMAND_STATUS)
409 printk("%s""command: 0x%04x, status: 0x%04x\n", pfx,
410 pcie->command, pcie->status);
411 if (pcie->validation_bits & CPER_PCIE_VALID_DEVICE_ID) {
413 printk("%s""device_id: %04x:%02x:%02x.%x\n", pfx,
414 pcie->device_id.segment, pcie->device_id.bus,
415 pcie->device_id.device, pcie->device_id.function);
416 printk("%s""slot: %d\n", pfx,
417 pcie->device_id.slot >> CPER_PCIE_SLOT_SHIFT);
418 printk("%s""secondary_bus: 0x%02x\n", pfx,
419 pcie->device_id.secondary_bus);
420 printk("%s""vendor_id: 0x%04x, device_id: 0x%04x\n", pfx,
421 pcie->device_id.vendor_id, pcie->device_id.device_id);
422 p = pcie->device_id.class_code;
423 printk("%s""class_code: %02x%02x%02x\n", pfx, p[2], p[1], p[0]);
425 if (pcie->validation_bits & CPER_PCIE_VALID_SERIAL_NUMBER)
426 printk("%s""serial number: 0x%04x, 0x%04x\n", pfx,
427 pcie->serial_number.lower, pcie->serial_number.upper);
428 if (pcie->validation_bits & CPER_PCIE_VALID_BRIDGE_CONTROL_STATUS)
430 "%s""bridge: secondary_status: 0x%04x, control: 0x%04x\n",
431 pfx, pcie->bridge.secondary_status, pcie->bridge.control);
433 /* Fatal errors call __ghes_panic() before AER handler prints this */
434 if ((pcie->validation_bits & CPER_PCIE_VALID_AER_INFO) &&
435 (gdata->error_severity & CPER_SEV_FATAL)) {
436 struct aer_capability_regs *aer;
438 aer = (struct aer_capability_regs *)pcie->aer_info;
439 printk("%saer_uncor_status: 0x%08x, aer_uncor_mask: 0x%08x\n",
440 pfx, aer->uncor_status, aer->uncor_mask);
441 printk("%saer_uncor_severity: 0x%08x\n",
442 pfx, aer->uncor_severity);
443 printk("%sTLP Header: %08x %08x %08x %08x\n", pfx,
444 aer->header_log.dw0, aer->header_log.dw1,
445 aer->header_log.dw2, aer->header_log.dw3);
449 static const char * const fw_err_rec_type_strs[] = {
450 "IPF SAL Error Record",
451 "SOC Firmware Error Record Type1 (Legacy CrashLog Support)",
452 "SOC Firmware Error Record Type2",
455 static void cper_print_fw_err(const char *pfx,
456 struct acpi_hest_generic_data *gdata,
457 const struct cper_sec_fw_err_rec_ref *fw_err)
459 void *buf = acpi_hest_get_payload(gdata);
460 u32 offset, length = gdata->error_data_length;
462 printk("%s""Firmware Error Record Type: %s\n", pfx,
463 fw_err->record_type < ARRAY_SIZE(fw_err_rec_type_strs) ?
464 fw_err_rec_type_strs[fw_err->record_type] : "unknown");
465 printk("%s""Revision: %d\n", pfx, fw_err->revision);
467 /* Record Type based on UEFI 2.7 */
468 if (fw_err->revision == 0) {
469 printk("%s""Record Identifier: %08llx\n", pfx,
470 fw_err->record_identifier);
471 } else if (fw_err->revision == 2) {
472 printk("%s""Record Identifier: %pUl\n", pfx,
473 &fw_err->record_identifier_guid);
477 * The FW error record may contain trailing data beyond the
478 * structure defined by the specification. As the fields
479 * defined (and hence the offset of any trailing data) vary
480 * with the revision, set the offset to account for this
483 if (fw_err->revision == 0) {
484 /* record_identifier_guid not defined */
485 offset = offsetof(struct cper_sec_fw_err_rec_ref,
486 record_identifier_guid);
487 } else if (fw_err->revision == 1) {
488 /* record_identifier not defined */
489 offset = offsetof(struct cper_sec_fw_err_rec_ref,
492 offset = sizeof(*fw_err);
498 print_hex_dump(pfx, "", DUMP_PREFIX_OFFSET, 16, 4, buf, length, true);
501 static void cper_print_tstamp(const char *pfx,
502 struct acpi_hest_generic_data_v300 *gdata)
504 __u8 hour, min, sec, day, mon, year, century, *timestamp;
506 if (gdata->validation_bits & ACPI_HEST_GEN_VALID_TIMESTAMP) {
507 timestamp = (__u8 *)&(gdata->time_stamp);
508 sec = bcd2bin(timestamp[0]);
509 min = bcd2bin(timestamp[1]);
510 hour = bcd2bin(timestamp[2]);
511 day = bcd2bin(timestamp[4]);
512 mon = bcd2bin(timestamp[5]);
513 year = bcd2bin(timestamp[6]);
514 century = bcd2bin(timestamp[7]);
516 printk("%s%ststamp: %02d%02d-%02d-%02d %02d:%02d:%02d\n", pfx,
517 (timestamp[3] & 0x1 ? "precise " : "imprecise "),
518 century, year, mon, day, hour, min, sec);
523 cper_estatus_print_section(const char *pfx, struct acpi_hest_generic_data *gdata,
526 guid_t *sec_type = (guid_t *)gdata->section_type;
530 if (acpi_hest_get_version(gdata) >= 3)
531 cper_print_tstamp(pfx, (struct acpi_hest_generic_data_v300 *)gdata);
533 severity = gdata->error_severity;
534 printk("%s""Error %d, type: %s\n", pfx, sec_no,
535 cper_severity_str(severity));
536 if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID)
537 printk("%s""fru_id: %pUl\n", pfx, gdata->fru_id);
538 if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
539 printk("%s""fru_text: %.20s\n", pfx, gdata->fru_text);
541 snprintf(newpfx, sizeof(newpfx), "%s ", pfx);
542 if (guid_equal(sec_type, &CPER_SEC_PROC_GENERIC)) {
543 struct cper_sec_proc_generic *proc_err = acpi_hest_get_payload(gdata);
545 printk("%s""section_type: general processor error\n", newpfx);
546 if (gdata->error_data_length >= sizeof(*proc_err))
547 cper_print_proc_generic(newpfx, proc_err);
549 goto err_section_too_small;
550 } else if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) {
551 struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata);
553 printk("%s""section_type: memory error\n", newpfx);
554 if (gdata->error_data_length >=
555 sizeof(struct cper_sec_mem_err_old))
556 cper_print_mem(newpfx, mem_err,
557 gdata->error_data_length);
559 goto err_section_too_small;
560 } else if (guid_equal(sec_type, &CPER_SEC_PCIE)) {
561 struct cper_sec_pcie *pcie = acpi_hest_get_payload(gdata);
563 printk("%s""section_type: PCIe error\n", newpfx);
564 if (gdata->error_data_length >= sizeof(*pcie))
565 cper_print_pcie(newpfx, pcie, gdata);
567 goto err_section_too_small;
568 #if defined(CONFIG_ARM64) || defined(CONFIG_ARM)
569 } else if (guid_equal(sec_type, &CPER_SEC_PROC_ARM)) {
570 struct cper_sec_proc_arm *arm_err = acpi_hest_get_payload(gdata);
572 printk("%ssection_type: ARM processor error\n", newpfx);
573 if (gdata->error_data_length >= sizeof(*arm_err))
574 cper_print_proc_arm(newpfx, arm_err);
576 goto err_section_too_small;
578 #if defined(CONFIG_UEFI_CPER_X86)
579 } else if (guid_equal(sec_type, &CPER_SEC_PROC_IA)) {
580 struct cper_sec_proc_ia *ia_err = acpi_hest_get_payload(gdata);
582 printk("%ssection_type: IA32/X64 processor error\n", newpfx);
583 if (gdata->error_data_length >= sizeof(*ia_err))
584 cper_print_proc_ia(newpfx, ia_err);
586 goto err_section_too_small;
588 } else if (guid_equal(sec_type, &CPER_SEC_FW_ERR_REC_REF)) {
589 struct cper_sec_fw_err_rec_ref *fw_err = acpi_hest_get_payload(gdata);
591 printk("%ssection_type: Firmware Error Record Reference\n",
593 /* The minimal FW Error Record contains 16 bytes */
594 if (gdata->error_data_length >= SZ_16)
595 cper_print_fw_err(newpfx, gdata, fw_err);
597 goto err_section_too_small;
599 const void *err = acpi_hest_get_payload(gdata);
601 printk("%ssection type: unknown, %pUl\n", newpfx, sec_type);
602 printk("%ssection length: %#x\n", newpfx,
603 gdata->error_data_length);
604 print_hex_dump(newpfx, "", DUMP_PREFIX_OFFSET, 16, 4, err,
605 gdata->error_data_length, true);
610 err_section_too_small:
611 pr_err(FW_WARN "error section length is too small\n");
614 void cper_estatus_print(const char *pfx,
615 const struct acpi_hest_generic_status *estatus)
617 struct acpi_hest_generic_data *gdata;
622 severity = estatus->error_severity;
623 if (severity == CPER_SEV_CORRECTED)
624 printk("%s%s\n", pfx,
625 "It has been corrected by h/w "
626 "and requires no further action");
627 printk("%s""event severity: %s\n", pfx, cper_severity_str(severity));
628 snprintf(newpfx, sizeof(newpfx), "%s ", pfx);
630 apei_estatus_for_each_section(estatus, gdata) {
631 cper_estatus_print_section(newpfx, gdata, sec_no);
635 EXPORT_SYMBOL_GPL(cper_estatus_print);
637 int cper_estatus_check_header(const struct acpi_hest_generic_status *estatus)
639 if (estatus->data_length &&
640 estatus->data_length < sizeof(struct acpi_hest_generic_data))
642 if (estatus->raw_data_length &&
643 estatus->raw_data_offset < sizeof(*estatus) + estatus->data_length)
648 EXPORT_SYMBOL_GPL(cper_estatus_check_header);
650 int cper_estatus_check(const struct acpi_hest_generic_status *estatus)
652 struct acpi_hest_generic_data *gdata;
653 unsigned int data_len, record_size;
656 rc = cper_estatus_check_header(estatus);
660 data_len = estatus->data_length;
662 apei_estatus_for_each_section(estatus, gdata) {
663 if (acpi_hest_get_size(gdata) > data_len)
666 record_size = acpi_hest_get_record_size(gdata);
667 if (record_size > data_len)
670 data_len -= record_size;
677 EXPORT_SYMBOL_GPL(cper_estatus_check);