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![Punit Agrawal](/assets/img/avatar_default.png)
While debugging a boot failure, the following unknown error record was seen in the boot logs. <...> BERT: Error records from previous boot: [Hardware Error]: event severity: fatal [Hardware Error]: Error 0, type: fatal [Hardware Error]: section type: unknown, 81212a96-09ed-4996-9471-8d729c8e69ed [Hardware Error]: section length: 0x290 [Hardware Error]: 00000000: 00000001 00000000 00000000 00020002 ................ [Hardware Error]: 00000010: 00020002 0000001f 00000320 00000000 ........ ....... [Hardware Error]: 00000020: 00000000 00000000 00000000 00000000 ................ [Hardware Error]: 00000030: 00000000 00000000 00000000 00000000 ................ <...> On further investigation, it was found that the error record with UUID (81212a96-09ed-4996-9471-8d729c8e69ed) has been defined in the UEFI Specification at least since v2.4 and has recently had additional fields defined in v2.7 Section N.2.10 Firmware Error Record Reference. Add support for parsing and printing the defined fields to give users a chance to figure out what went wrong. Signed-off-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Borislav Petkov <bp@alien8.de> Cc: James Morse <james.morse@arm.com> Cc: linux-acpi@vger.kernel.org Cc: linux-efi@vger.kernel.org Link: https://lore.kernel.org/r/20200512045502.3810339-1-punit1.agrawal@toshiba.co.jp Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
638 lines
20 KiB
C
638 lines
20 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* UEFI Common Platform Error Record (CPER) support
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*
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* Copyright (C) 2010, Intel Corp.
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* Author: Huang Ying <ying.huang@intel.com>
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*
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* CPER is the format used to describe platform hardware error by
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* various tables, such as ERST, BERT and HEST etc.
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*
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* For more information about CPER, please refer to Appendix N of UEFI
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* Specification version 2.4.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/time.h>
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#include <linux/cper.h>
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#include <linux/dmi.h>
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#include <linux/acpi.h>
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#include <linux/pci.h>
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#include <linux/aer.h>
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#include <linux/printk.h>
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#include <linux/bcd.h>
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#include <acpi/ghes.h>
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#include <ras/ras_event.h>
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static char rcd_decode_str[CPER_REC_LEN];
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/*
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* CPER record ID need to be unique even after reboot, because record
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* ID is used as index for ERST storage, while CPER records from
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* multiple boot may co-exist in ERST.
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*/
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u64 cper_next_record_id(void)
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{
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static atomic64_t seq;
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if (!atomic64_read(&seq)) {
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time64_t time = ktime_get_real_seconds();
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/*
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* This code is unlikely to still be needed in year 2106,
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* but just in case, let's use a few more bits for timestamps
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* after y2038 to be sure they keep increasing monotonically
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* for the next few hundred years...
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*/
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if (time < 0x80000000)
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atomic64_set(&seq, (ktime_get_real_seconds()) << 32);
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else
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atomic64_set(&seq, 0x8000000000000000ull |
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ktime_get_real_seconds() << 24);
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}
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return atomic64_inc_return(&seq);
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}
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EXPORT_SYMBOL_GPL(cper_next_record_id);
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static const char * const severity_strs[] = {
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"recoverable",
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"fatal",
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"corrected",
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"info",
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};
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const char *cper_severity_str(unsigned int severity)
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{
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return severity < ARRAY_SIZE(severity_strs) ?
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severity_strs[severity] : "unknown";
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}
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EXPORT_SYMBOL_GPL(cper_severity_str);
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/*
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* cper_print_bits - print strings for set bits
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* @pfx: prefix for each line, including log level and prefix string
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* @bits: bit mask
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* @strs: string array, indexed by bit position
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* @strs_size: size of the string array: @strs
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*
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* For each set bit in @bits, print the corresponding string in @strs.
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* If the output length is longer than 80, multiple line will be
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* printed, with @pfx is printed at the beginning of each line.
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*/
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void cper_print_bits(const char *pfx, unsigned int bits,
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const char * const strs[], unsigned int strs_size)
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{
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int i, len = 0;
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const char *str;
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char buf[84];
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for (i = 0; i < strs_size; i++) {
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if (!(bits & (1U << i)))
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continue;
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str = strs[i];
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if (!str)
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continue;
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if (len && len + strlen(str) + 2 > 80) {
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printk("%s\n", buf);
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len = 0;
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}
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if (!len)
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len = snprintf(buf, sizeof(buf), "%s%s", pfx, str);
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else
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len += scnprintf(buf+len, sizeof(buf)-len, ", %s", str);
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}
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if (len)
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printk("%s\n", buf);
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}
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static const char * const proc_type_strs[] = {
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"IA32/X64",
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"IA64",
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"ARM",
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};
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static const char * const proc_isa_strs[] = {
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"IA32",
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"IA64",
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"X64",
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"ARM A32/T32",
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"ARM A64",
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};
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const char * const cper_proc_error_type_strs[] = {
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"cache error",
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"TLB error",
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"bus error",
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"micro-architectural error",
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};
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static const char * const proc_op_strs[] = {
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"unknown or generic",
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"data read",
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"data write",
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"instruction execution",
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};
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static const char * const proc_flag_strs[] = {
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"restartable",
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"precise IP",
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"overflow",
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"corrected",
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};
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static void cper_print_proc_generic(const char *pfx,
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const struct cper_sec_proc_generic *proc)
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{
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if (proc->validation_bits & CPER_PROC_VALID_TYPE)
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printk("%s""processor_type: %d, %s\n", pfx, proc->proc_type,
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proc->proc_type < ARRAY_SIZE(proc_type_strs) ?
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proc_type_strs[proc->proc_type] : "unknown");
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if (proc->validation_bits & CPER_PROC_VALID_ISA)
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printk("%s""processor_isa: %d, %s\n", pfx, proc->proc_isa,
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proc->proc_isa < ARRAY_SIZE(proc_isa_strs) ?
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proc_isa_strs[proc->proc_isa] : "unknown");
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if (proc->validation_bits & CPER_PROC_VALID_ERROR_TYPE) {
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printk("%s""error_type: 0x%02x\n", pfx, proc->proc_error_type);
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cper_print_bits(pfx, proc->proc_error_type,
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cper_proc_error_type_strs,
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ARRAY_SIZE(cper_proc_error_type_strs));
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}
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if (proc->validation_bits & CPER_PROC_VALID_OPERATION)
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printk("%s""operation: %d, %s\n", pfx, proc->operation,
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proc->operation < ARRAY_SIZE(proc_op_strs) ?
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proc_op_strs[proc->operation] : "unknown");
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if (proc->validation_bits & CPER_PROC_VALID_FLAGS) {
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printk("%s""flags: 0x%02x\n", pfx, proc->flags);
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cper_print_bits(pfx, proc->flags, proc_flag_strs,
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ARRAY_SIZE(proc_flag_strs));
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}
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if (proc->validation_bits & CPER_PROC_VALID_LEVEL)
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printk("%s""level: %d\n", pfx, proc->level);
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if (proc->validation_bits & CPER_PROC_VALID_VERSION)
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printk("%s""version_info: 0x%016llx\n", pfx, proc->cpu_version);
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if (proc->validation_bits & CPER_PROC_VALID_ID)
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printk("%s""processor_id: 0x%016llx\n", pfx, proc->proc_id);
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if (proc->validation_bits & CPER_PROC_VALID_TARGET_ADDRESS)
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printk("%s""target_address: 0x%016llx\n",
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pfx, proc->target_addr);
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if (proc->validation_bits & CPER_PROC_VALID_REQUESTOR_ID)
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printk("%s""requestor_id: 0x%016llx\n",
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pfx, proc->requestor_id);
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if (proc->validation_bits & CPER_PROC_VALID_RESPONDER_ID)
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printk("%s""responder_id: 0x%016llx\n",
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pfx, proc->responder_id);
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if (proc->validation_bits & CPER_PROC_VALID_IP)
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printk("%s""IP: 0x%016llx\n", pfx, proc->ip);
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}
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static const char * const mem_err_type_strs[] = {
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"unknown",
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"no error",
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"single-bit ECC",
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"multi-bit ECC",
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"single-symbol chipkill ECC",
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"multi-symbol chipkill ECC",
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"master abort",
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"target abort",
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"parity error",
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"watchdog timeout",
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"invalid address",
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"mirror Broken",
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"memory sparing",
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"scrub corrected error",
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"scrub uncorrected error",
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"physical memory map-out event",
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};
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const char *cper_mem_err_type_str(unsigned int etype)
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{
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return etype < ARRAY_SIZE(mem_err_type_strs) ?
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mem_err_type_strs[etype] : "unknown";
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}
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EXPORT_SYMBOL_GPL(cper_mem_err_type_str);
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static int cper_mem_err_location(struct cper_mem_err_compact *mem, char *msg)
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{
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u32 len, n;
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if (!msg)
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return 0;
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n = 0;
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len = CPER_REC_LEN - 1;
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if (mem->validation_bits & CPER_MEM_VALID_NODE)
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n += scnprintf(msg + n, len - n, "node: %d ", mem->node);
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if (mem->validation_bits & CPER_MEM_VALID_CARD)
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n += scnprintf(msg + n, len - n, "card: %d ", mem->card);
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if (mem->validation_bits & CPER_MEM_VALID_MODULE)
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n += scnprintf(msg + n, len - n, "module: %d ", mem->module);
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if (mem->validation_bits & CPER_MEM_VALID_RANK_NUMBER)
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n += scnprintf(msg + n, len - n, "rank: %d ", mem->rank);
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if (mem->validation_bits & CPER_MEM_VALID_BANK)
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n += scnprintf(msg + n, len - n, "bank: %d ", mem->bank);
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if (mem->validation_bits & CPER_MEM_VALID_DEVICE)
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n += scnprintf(msg + n, len - n, "device: %d ", mem->device);
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if (mem->validation_bits & CPER_MEM_VALID_ROW)
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n += scnprintf(msg + n, len - n, "row: %d ", mem->row);
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if (mem->validation_bits & CPER_MEM_VALID_COLUMN)
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n += scnprintf(msg + n, len - n, "column: %d ", mem->column);
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if (mem->validation_bits & CPER_MEM_VALID_BIT_POSITION)
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n += scnprintf(msg + n, len - n, "bit_position: %d ",
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mem->bit_pos);
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if (mem->validation_bits & CPER_MEM_VALID_REQUESTOR_ID)
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n += scnprintf(msg + n, len - n, "requestor_id: 0x%016llx ",
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mem->requestor_id);
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if (mem->validation_bits & CPER_MEM_VALID_RESPONDER_ID)
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n += scnprintf(msg + n, len - n, "responder_id: 0x%016llx ",
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mem->responder_id);
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if (mem->validation_bits & CPER_MEM_VALID_TARGET_ID)
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scnprintf(msg + n, len - n, "target_id: 0x%016llx ",
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mem->target_id);
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msg[n] = '\0';
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return n;
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}
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static int cper_dimm_err_location(struct cper_mem_err_compact *mem, char *msg)
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{
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u32 len, n;
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const char *bank = NULL, *device = NULL;
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if (!msg || !(mem->validation_bits & CPER_MEM_VALID_MODULE_HANDLE))
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return 0;
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n = 0;
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len = CPER_REC_LEN - 1;
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dmi_memdev_name(mem->mem_dev_handle, &bank, &device);
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if (bank && device)
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n = snprintf(msg, len, "DIMM location: %s %s ", bank, device);
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else
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n = snprintf(msg, len,
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"DIMM location: not present. DMI handle: 0x%.4x ",
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mem->mem_dev_handle);
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msg[n] = '\0';
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return n;
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}
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void cper_mem_err_pack(const struct cper_sec_mem_err *mem,
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struct cper_mem_err_compact *cmem)
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{
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cmem->validation_bits = mem->validation_bits;
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cmem->node = mem->node;
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cmem->card = mem->card;
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cmem->module = mem->module;
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cmem->bank = mem->bank;
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cmem->device = mem->device;
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cmem->row = mem->row;
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cmem->column = mem->column;
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cmem->bit_pos = mem->bit_pos;
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cmem->requestor_id = mem->requestor_id;
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cmem->responder_id = mem->responder_id;
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cmem->target_id = mem->target_id;
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cmem->rank = mem->rank;
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cmem->mem_array_handle = mem->mem_array_handle;
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cmem->mem_dev_handle = mem->mem_dev_handle;
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}
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const char *cper_mem_err_unpack(struct trace_seq *p,
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struct cper_mem_err_compact *cmem)
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{
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const char *ret = trace_seq_buffer_ptr(p);
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if (cper_mem_err_location(cmem, rcd_decode_str))
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trace_seq_printf(p, "%s", rcd_decode_str);
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if (cper_dimm_err_location(cmem, rcd_decode_str))
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trace_seq_printf(p, "%s", rcd_decode_str);
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trace_seq_putc(p, '\0');
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return ret;
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}
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static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem,
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int len)
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{
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struct cper_mem_err_compact cmem;
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/* Don't trust UEFI 2.1/2.2 structure with bad validation bits */
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if (len == sizeof(struct cper_sec_mem_err_old) &&
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(mem->validation_bits & ~(CPER_MEM_VALID_RANK_NUMBER - 1))) {
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pr_err(FW_WARN "valid bits set for fields beyond structure\n");
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return;
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}
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if (mem->validation_bits & CPER_MEM_VALID_ERROR_STATUS)
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printk("%s""error_status: 0x%016llx\n", pfx, mem->error_status);
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if (mem->validation_bits & CPER_MEM_VALID_PA)
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printk("%s""physical_address: 0x%016llx\n",
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pfx, mem->physical_addr);
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if (mem->validation_bits & CPER_MEM_VALID_PA_MASK)
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printk("%s""physical_address_mask: 0x%016llx\n",
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pfx, mem->physical_addr_mask);
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cper_mem_err_pack(mem, &cmem);
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if (cper_mem_err_location(&cmem, rcd_decode_str))
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printk("%s%s\n", pfx, rcd_decode_str);
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if (mem->validation_bits & CPER_MEM_VALID_ERROR_TYPE) {
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u8 etype = mem->error_type;
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printk("%s""error_type: %d, %s\n", pfx, etype,
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cper_mem_err_type_str(etype));
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}
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if (cper_dimm_err_location(&cmem, rcd_decode_str))
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printk("%s%s\n", pfx, rcd_decode_str);
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}
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static const char * const pcie_port_type_strs[] = {
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"PCIe end point",
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"legacy PCI end point",
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"unknown",
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"unknown",
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"root port",
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"upstream switch port",
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"downstream switch port",
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"PCIe to PCI/PCI-X bridge",
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"PCI/PCI-X to PCIe bridge",
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"root complex integrated endpoint device",
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"root complex event collector",
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};
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static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
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const struct acpi_hest_generic_data *gdata)
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{
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if (pcie->validation_bits & CPER_PCIE_VALID_PORT_TYPE)
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printk("%s""port_type: %d, %s\n", pfx, pcie->port_type,
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pcie->port_type < ARRAY_SIZE(pcie_port_type_strs) ?
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pcie_port_type_strs[pcie->port_type] : "unknown");
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if (pcie->validation_bits & CPER_PCIE_VALID_VERSION)
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printk("%s""version: %d.%d\n", pfx,
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pcie->version.major, pcie->version.minor);
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if (pcie->validation_bits & CPER_PCIE_VALID_COMMAND_STATUS)
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printk("%s""command: 0x%04x, status: 0x%04x\n", pfx,
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pcie->command, pcie->status);
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if (pcie->validation_bits & CPER_PCIE_VALID_DEVICE_ID) {
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const __u8 *p;
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printk("%s""device_id: %04x:%02x:%02x.%x\n", pfx,
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pcie->device_id.segment, pcie->device_id.bus,
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pcie->device_id.device, pcie->device_id.function);
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printk("%s""slot: %d\n", pfx,
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pcie->device_id.slot >> CPER_PCIE_SLOT_SHIFT);
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printk("%s""secondary_bus: 0x%02x\n", pfx,
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pcie->device_id.secondary_bus);
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printk("%s""vendor_id: 0x%04x, device_id: 0x%04x\n", pfx,
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pcie->device_id.vendor_id, pcie->device_id.device_id);
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p = pcie->device_id.class_code;
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printk("%s""class_code: %02x%02x%02x\n", pfx, p[2], p[1], p[0]);
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}
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if (pcie->validation_bits & CPER_PCIE_VALID_SERIAL_NUMBER)
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printk("%s""serial number: 0x%04x, 0x%04x\n", pfx,
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pcie->serial_number.lower, pcie->serial_number.upper);
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if (pcie->validation_bits & CPER_PCIE_VALID_BRIDGE_CONTROL_STATUS)
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printk(
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"%s""bridge: secondary_status: 0x%04x, control: 0x%04x\n",
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pfx, pcie->bridge.secondary_status, pcie->bridge.control);
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/* Fatal errors call __ghes_panic() before AER handler prints this */
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if ((pcie->validation_bits & CPER_PCIE_VALID_AER_INFO) &&
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(gdata->error_severity & CPER_SEV_FATAL)) {
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struct aer_capability_regs *aer;
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aer = (struct aer_capability_regs *)pcie->aer_info;
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printk("%saer_uncor_status: 0x%08x, aer_uncor_mask: 0x%08x\n",
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pfx, aer->uncor_status, aer->uncor_mask);
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printk("%saer_uncor_severity: 0x%08x\n",
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pfx, aer->uncor_severity);
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printk("%sTLP Header: %08x %08x %08x %08x\n", pfx,
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aer->header_log.dw0, aer->header_log.dw1,
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aer->header_log.dw2, aer->header_log.dw3);
|
|
}
|
|
}
|
|
|
|
static const char * const fw_err_rec_type_strs[] = {
|
|
"IPF SAL Error Record",
|
|
"SOC Firmware Error Record Type1 (Legacy CrashLog Support)",
|
|
"SOC Firmware Error Record Type2",
|
|
};
|
|
|
|
static void cper_print_fw_err(const char *pfx,
|
|
struct acpi_hest_generic_data *gdata,
|
|
const struct cper_sec_fw_err_rec_ref *fw_err)
|
|
{
|
|
void *buf = acpi_hest_get_payload(gdata);
|
|
u32 offset, length = gdata->error_data_length;
|
|
|
|
printk("%s""Firmware Error Record Type: %s\n", pfx,
|
|
fw_err->record_type < ARRAY_SIZE(fw_err_rec_type_strs) ?
|
|
fw_err_rec_type_strs[fw_err->record_type] : "unknown");
|
|
printk("%s""Revision: %d\n", pfx, fw_err->revision);
|
|
|
|
/* Record Type based on UEFI 2.7 */
|
|
if (fw_err->revision == 0) {
|
|
printk("%s""Record Identifier: %08llx\n", pfx,
|
|
fw_err->record_identifier);
|
|
} else if (fw_err->revision == 2) {
|
|
printk("%s""Record Identifier: %pUl\n", pfx,
|
|
&fw_err->record_identifier_guid);
|
|
}
|
|
|
|
/*
|
|
* The FW error record may contain trailing data beyond the
|
|
* structure defined by the specification. As the fields
|
|
* defined (and hence the offset of any trailing data) vary
|
|
* with the revision, set the offset to account for this
|
|
* variation.
|
|
*/
|
|
if (fw_err->revision == 0) {
|
|
/* record_identifier_guid not defined */
|
|
offset = offsetof(struct cper_sec_fw_err_rec_ref,
|
|
record_identifier_guid);
|
|
} else if (fw_err->revision == 1) {
|
|
/* record_identifier not defined */
|
|
offset = offsetof(struct cper_sec_fw_err_rec_ref,
|
|
record_identifier);
|
|
} else {
|
|
offset = sizeof(*fw_err);
|
|
}
|
|
|
|
buf += offset;
|
|
length -= offset;
|
|
|
|
print_hex_dump(pfx, "", DUMP_PREFIX_OFFSET, 16, 4, buf, length, true);
|
|
}
|
|
|
|
static void cper_print_tstamp(const char *pfx,
|
|
struct acpi_hest_generic_data_v300 *gdata)
|
|
{
|
|
__u8 hour, min, sec, day, mon, year, century, *timestamp;
|
|
|
|
if (gdata->validation_bits & ACPI_HEST_GEN_VALID_TIMESTAMP) {
|
|
timestamp = (__u8 *)&(gdata->time_stamp);
|
|
sec = bcd2bin(timestamp[0]);
|
|
min = bcd2bin(timestamp[1]);
|
|
hour = bcd2bin(timestamp[2]);
|
|
day = bcd2bin(timestamp[4]);
|
|
mon = bcd2bin(timestamp[5]);
|
|
year = bcd2bin(timestamp[6]);
|
|
century = bcd2bin(timestamp[7]);
|
|
|
|
printk("%s%ststamp: %02d%02d-%02d-%02d %02d:%02d:%02d\n", pfx,
|
|
(timestamp[3] & 0x1 ? "precise " : "imprecise "),
|
|
century, year, mon, day, hour, min, sec);
|
|
}
|
|
}
|
|
|
|
static void
|
|
cper_estatus_print_section(const char *pfx, struct acpi_hest_generic_data *gdata,
|
|
int sec_no)
|
|
{
|
|
guid_t *sec_type = (guid_t *)gdata->section_type;
|
|
__u16 severity;
|
|
char newpfx[64];
|
|
|
|
if (acpi_hest_get_version(gdata) >= 3)
|
|
cper_print_tstamp(pfx, (struct acpi_hest_generic_data_v300 *)gdata);
|
|
|
|
severity = gdata->error_severity;
|
|
printk("%s""Error %d, type: %s\n", pfx, sec_no,
|
|
cper_severity_str(severity));
|
|
if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID)
|
|
printk("%s""fru_id: %pUl\n", pfx, gdata->fru_id);
|
|
if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
|
|
printk("%s""fru_text: %.20s\n", pfx, gdata->fru_text);
|
|
|
|
snprintf(newpfx, sizeof(newpfx), "%s ", pfx);
|
|
if (guid_equal(sec_type, &CPER_SEC_PROC_GENERIC)) {
|
|
struct cper_sec_proc_generic *proc_err = acpi_hest_get_payload(gdata);
|
|
|
|
printk("%s""section_type: general processor error\n", newpfx);
|
|
if (gdata->error_data_length >= sizeof(*proc_err))
|
|
cper_print_proc_generic(newpfx, proc_err);
|
|
else
|
|
goto err_section_too_small;
|
|
} else if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) {
|
|
struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata);
|
|
|
|
printk("%s""section_type: memory error\n", newpfx);
|
|
if (gdata->error_data_length >=
|
|
sizeof(struct cper_sec_mem_err_old))
|
|
cper_print_mem(newpfx, mem_err,
|
|
gdata->error_data_length);
|
|
else
|
|
goto err_section_too_small;
|
|
} else if (guid_equal(sec_type, &CPER_SEC_PCIE)) {
|
|
struct cper_sec_pcie *pcie = acpi_hest_get_payload(gdata);
|
|
|
|
printk("%s""section_type: PCIe error\n", newpfx);
|
|
if (gdata->error_data_length >= sizeof(*pcie))
|
|
cper_print_pcie(newpfx, pcie, gdata);
|
|
else
|
|
goto err_section_too_small;
|
|
#if defined(CONFIG_ARM64) || defined(CONFIG_ARM)
|
|
} else if (guid_equal(sec_type, &CPER_SEC_PROC_ARM)) {
|
|
struct cper_sec_proc_arm *arm_err = acpi_hest_get_payload(gdata);
|
|
|
|
printk("%ssection_type: ARM processor error\n", newpfx);
|
|
if (gdata->error_data_length >= sizeof(*arm_err))
|
|
cper_print_proc_arm(newpfx, arm_err);
|
|
else
|
|
goto err_section_too_small;
|
|
#endif
|
|
#if defined(CONFIG_UEFI_CPER_X86)
|
|
} else if (guid_equal(sec_type, &CPER_SEC_PROC_IA)) {
|
|
struct cper_sec_proc_ia *ia_err = acpi_hest_get_payload(gdata);
|
|
|
|
printk("%ssection_type: IA32/X64 processor error\n", newpfx);
|
|
if (gdata->error_data_length >= sizeof(*ia_err))
|
|
cper_print_proc_ia(newpfx, ia_err);
|
|
else
|
|
goto err_section_too_small;
|
|
#endif
|
|
} else if (guid_equal(sec_type, &CPER_SEC_FW_ERR_REC_REF)) {
|
|
struct cper_sec_fw_err_rec_ref *fw_err = acpi_hest_get_payload(gdata);
|
|
|
|
printk("%ssection_type: Firmware Error Record Reference\n",
|
|
newpfx);
|
|
/* The minimal FW Error Record contains 16 bytes */
|
|
if (gdata->error_data_length >= SZ_16)
|
|
cper_print_fw_err(newpfx, gdata, fw_err);
|
|
else
|
|
goto err_section_too_small;
|
|
} else {
|
|
const void *err = acpi_hest_get_payload(gdata);
|
|
|
|
printk("%ssection type: unknown, %pUl\n", newpfx, sec_type);
|
|
printk("%ssection length: %#x\n", newpfx,
|
|
gdata->error_data_length);
|
|
print_hex_dump(newpfx, "", DUMP_PREFIX_OFFSET, 16, 4, err,
|
|
gdata->error_data_length, true);
|
|
}
|
|
|
|
return;
|
|
|
|
err_section_too_small:
|
|
pr_err(FW_WARN "error section length is too small\n");
|
|
}
|
|
|
|
void cper_estatus_print(const char *pfx,
|
|
const struct acpi_hest_generic_status *estatus)
|
|
{
|
|
struct acpi_hest_generic_data *gdata;
|
|
int sec_no = 0;
|
|
char newpfx[64];
|
|
__u16 severity;
|
|
|
|
severity = estatus->error_severity;
|
|
if (severity == CPER_SEV_CORRECTED)
|
|
printk("%s%s\n", pfx,
|
|
"It has been corrected by h/w "
|
|
"and requires no further action");
|
|
printk("%s""event severity: %s\n", pfx, cper_severity_str(severity));
|
|
snprintf(newpfx, sizeof(newpfx), "%s ", pfx);
|
|
|
|
apei_estatus_for_each_section(estatus, gdata) {
|
|
cper_estatus_print_section(newpfx, gdata, sec_no);
|
|
sec_no++;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(cper_estatus_print);
|
|
|
|
int cper_estatus_check_header(const struct acpi_hest_generic_status *estatus)
|
|
{
|
|
if (estatus->data_length &&
|
|
estatus->data_length < sizeof(struct acpi_hest_generic_data))
|
|
return -EINVAL;
|
|
if (estatus->raw_data_length &&
|
|
estatus->raw_data_offset < sizeof(*estatus) + estatus->data_length)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(cper_estatus_check_header);
|
|
|
|
int cper_estatus_check(const struct acpi_hest_generic_status *estatus)
|
|
{
|
|
struct acpi_hest_generic_data *gdata;
|
|
unsigned int data_len, record_size;
|
|
int rc;
|
|
|
|
rc = cper_estatus_check_header(estatus);
|
|
if (rc)
|
|
return rc;
|
|
|
|
data_len = estatus->data_length;
|
|
|
|
apei_estatus_for_each_section(estatus, gdata) {
|
|
if (sizeof(struct acpi_hest_generic_data) > data_len)
|
|
return -EINVAL;
|
|
|
|
record_size = acpi_hest_get_record_size(gdata);
|
|
if (record_size > data_len)
|
|
return -EINVAL;
|
|
|
|
data_len -= record_size;
|
|
}
|
|
if (data_len)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(cper_estatus_check);
|