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d4fca1358e
Starting with Zen4, AMD's Scalable MCA systems incorporate two new registers: MCA_SYND1 and MCA_SYND2. These registers will include supplemental error information in addition to the existing MCA_SYND register. The data within these registers is considered valid if MCA_STATUS[SyndV] is set. Userspace error decoding tools like rasdaemon gather related hardware error information through the tracepoints. Therefore, export these two registers through the mce_record tracepoint so that tools like rasdaemon can parse them and output the supplemental error information like FRU text contained in them. [ bp: Massage. ] Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com> Signed-off-by: Avadhut Naik <avadhut.naik@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Link: https://lore.kernel.org/r/20241022194158.110073-4-avadhut.naik@amd.com
96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM mce
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#if !defined(_TRACE_MCE_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_MCE_H
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#include <linux/ktime.h>
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#include <linux/tracepoint.h>
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#include <asm/mce.h>
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/*
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* MCE Event Record.
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*
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* Only very relevant and transient information which cannot be
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* gathered from a system by any other means or which can only be
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* acquired arduously should be added to this record.
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*/
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TRACE_EVENT(mce_record,
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TP_PROTO(struct mce_hw_err *err),
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TP_ARGS(err),
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TP_STRUCT__entry(
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__field( u64, mcgcap )
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__field( u64, mcgstatus )
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__field( u64, status )
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__field( u64, addr )
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__field( u64, misc )
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__field( u64, synd )
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__field( u64, ipid )
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__field( u64, ip )
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__field( u64, tsc )
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__field( u64, ppin )
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__field( u64, walltime )
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__field( u32, cpu )
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__field( u32, cpuid )
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__field( u32, apicid )
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__field( u32, socketid )
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__field( u8, cs )
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__field( u8, bank )
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__field( u8, cpuvendor )
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__field( u32, microcode )
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__dynamic_array(u8, v_data, sizeof(err->vendor))
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),
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TP_fast_assign(
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__entry->mcgcap = err->m.mcgcap;
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__entry->mcgstatus = err->m.mcgstatus;
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__entry->status = err->m.status;
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__entry->addr = err->m.addr;
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__entry->misc = err->m.misc;
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__entry->synd = err->m.synd;
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__entry->ipid = err->m.ipid;
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__entry->ip = err->m.ip;
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__entry->tsc = err->m.tsc;
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__entry->ppin = err->m.ppin;
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__entry->walltime = err->m.time;
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__entry->cpu = err->m.extcpu;
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__entry->cpuid = err->m.cpuid;
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__entry->apicid = err->m.apicid;
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__entry->socketid = err->m.socketid;
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__entry->cs = err->m.cs;
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__entry->bank = err->m.bank;
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__entry->cpuvendor = err->m.cpuvendor;
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__entry->microcode = err->m.microcode;
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memcpy(__get_dynamic_array(v_data), &err->vendor, sizeof(err->vendor));
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),
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TP_printk("CPU: %d, MCGc/s: %llx/%llx, MC%d: %016llx, IPID: %016llx, ADDR: %016llx, MISC: %016llx, SYND: %016llx, RIP: %02x:<%016llx>, TSC: %llx, PPIN: %llx, vendor: %u, CPUID: %x, time: %llu, socket: %u, APIC: %x, microcode: %x, vendor data: %s",
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__entry->cpu,
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__entry->mcgcap, __entry->mcgstatus,
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__entry->bank, __entry->status,
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__entry->ipid,
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__entry->addr,
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__entry->misc,
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__entry->synd,
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__entry->cs, __entry->ip,
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__entry->tsc,
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__entry->ppin,
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__entry->cpuvendor,
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__entry->cpuid,
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__entry->walltime,
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__entry->socketid,
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__entry->apicid,
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__entry->microcode,
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__print_dynamic_array(v_data, sizeof(u8)))
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);
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#endif /* _TRACE_MCE_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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