uapi/asm/mce.h

0001 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
0002 #ifndef _UAPI_ASM_X86_MCE_H
0003 #define _UAPI_ASM_X86_MCE_H
0004
0005 #include <linux/types.h>
0006 #include <linux/ioctl.h>
0007
0008 /*
0009  * Fields are zero when not available. Also, this struct is shared with
0010  * userspace mcelog and thus must keep existing fields at current offsets.
0011  * Only add new fields to the end of the structure
0012  */
0013 struct mce {
0014     __u64 status;       /* Bank's MCi_STATUS MSR */
0015     __u64 misc;     /* Bank's MCi_MISC MSR */
0016     __u64 addr;     /* Bank's MCi_ADDR MSR */
0017     __u64 mcgstatus;    /* Machine Check Global Status MSR */
0018     __u64 ip;       /* Instruction Pointer when the error happened */
0019     __u64 tsc;      /* CPU time stamp counter */
0020     __u64 time;     /* Wall time_t when error was detected */
0021     __u8  cpuvendor;    /* Kernel's X86_VENDOR enum */
0022     __u8  inject_flags; /* Software inject flags */
0023     __u8  severity;     /* Error severity */
0024     __u8  pad;
0025     __u32 cpuid;        /* CPUID 1 EAX */
0026     __u8  cs;       /* Code segment */
0027     __u8  bank;     /* Machine check bank reporting the error */
0028     __u8  cpu;      /* CPU number; obsoleted by extcpu */
0029     __u8  finished;     /* Entry is valid */
0030     __u32 extcpu;       /* Linux CPU number that detected the error */
0031     __u32 socketid;     /* CPU socket ID */
0032     __u32 apicid;       /* CPU initial APIC ID */
0033     __u64 mcgcap;       /* MCGCAP MSR: machine check capabilities of CPU */
0034     __u64 synd;     /* MCA_SYND MSR: only valid on SMCA systems */
0035     __u64 ipid;     /* MCA_IPID MSR: only valid on SMCA systems */
0036     __u64 ppin;     /* Protected Processor Inventory Number */
0037     __u32 microcode;    /* Microcode revision */
0038     __u64 kflags;       /* Internal kernel use */
0039 };
0040
0041 #define MCE_GET_RECORD_LEN   _IOR('M', 1, int)
0042 #define MCE_GET_LOG_LEN      _IOR('M', 2, int)
0043 #define MCE_GETCLEAR_FLAGS   _IOR('M', 3, int)
0044
0045 #endif /* _UAPI_ASM_X86_MCE_H */