arch/x86/include/uapi/asm/mce.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _UAPI_ASM_X86_MCE_H
   3 #define _UAPI_ASM_X86_MCE_H
   4
   5 #include <linux/types.h>
   6 #include <linux/ioctl.h>
   7
   8 /*
   9  * Fields are zero when not available. Also, this struct is shared with
  10  * userspace mcelog and thus must keep existing fields at current offsets.
  11  * Only add new, shared fields to the end of the structure.
  12  * Do not add vendor-specific fields.
  13  */
  14 struct mce {
  15         __u64 status;           /* Bank's MCi_STATUS MSR */
  16         __u64 misc;             /* Bank's MCi_MISC MSR */
  17         __u64 addr;             /* Bank's MCi_ADDR MSR */
  18         __u64 mcgstatus;        /* Machine Check Global Status MSR */
  19         __u64 ip;               /* Instruction Pointer when the error happened */
  20         __u64 tsc;              /* CPU time stamp counter */
  21         __u64 time;             /* Wall time_t when error was detected */
  22         __u8  cpuvendor;        /* Kernel's X86_VENDOR enum */
  23         __u8  inject_flags;     /* Software inject flags */
  24         __u8  severity;         /* Error severity */
  25         __u8  pad;
  26         __u32 cpuid;            /* CPUID 1 EAX */
  27         __u8  cs;               /* Code segment */
  28         __u8  bank;             /* Machine check bank reporting the error */
  29         __u8  cpu;              /* CPU number; obsoleted by extcpu */
  30         __u8  finished;         /* Entry is valid */
  31         __u32 extcpu;           /* Linux CPU number that detected the error */
  32         __u32 socketid;         /* CPU socket ID */
  33         __u32 apicid;           /* CPU initial APIC ID */
  34         __u64 mcgcap;           /* MCGCAP MSR: machine check capabilities of CPU */
  35         __u64 synd;             /* MCA_SYND MSR: only valid on SMCA systems */
  36         __u64 ipid;             /* MCA_IPID MSR: only valid on SMCA systems */
  37         __u64 ppin;             /* Protected Processor Inventory Number */
  38         __u32 microcode;        /* Microcode revision */
  39         __u64 kflags;           /* Internal kernel use */
  40 };
  41
  42 #define MCE_GET_RECORD_LEN   _IOR('M', 1, int)
  43 #define MCE_GET_LOG_LEN      _IOR('M', 2, int)
  44 #define MCE_GETCLEAR_FLAGS   _IOR('M', 3, int)
  45
  46 #endif /* _UAPI_ASM_X86_MCE_H */