mce_x86.h 1.7 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. #ifndef _ASM_X86_MCE_H
  3. #define _ASM_X86_MCE_H
  4. #include <linux/types.h>
  5. #include <linux/ioctl.h>
  6. /*
  7. * Fields are zero when not available. Also, this struct is shared with
  8. * userspace mcelog and thus must keep existing fields at current offsets.
  9. * Only add new fields to the end of the structure
  10. */
  11. struct mce {
  12. __u64 status; /* Bank's MCi_STATUS MSR */
  13. __u64 misc; /* Bank's MCi_MISC MSR */
  14. __u64 addr; /* Bank's MCi_ADDR MSR */
  15. __u64 mcgstatus; /* Machine Check Global Status MSR */
  16. __u64 ip; /* Instruction Pointer when the error happened */
  17. __u64 tsc; /* CPU time stamp counter */
  18. __u64 time; /* Wall time_t when error was detected */
  19. __u8 cpuvendor; /* Kernel's X86_VENDOR enum */
  20. __u8 inject_flags; /* Software inject flags */
  21. __u8 severity; /* Error severity */
  22. __u8 pad;
  23. __u32 cpuid; /* CPUID 1 EAX */
  24. __u8 cs; /* Code segment */
  25. __u8 bank; /* Machine check bank reporting the error */
  26. __u8 cpu; /* CPU number; obsoleted by extcpu */
  27. __u8 finished; /* Entry is valid */
  28. __u32 extcpu; /* Linux CPU number that detected the error */
  29. __u32 socketid; /* CPU socket ID */
  30. __u32 apicid; /* CPU initial APIC ID */
  31. __u64 mcgcap; /* MCGCAP MSR: machine check capabilities of CPU */
  32. __u64 synd; /* MCA_SYND MSR: only valid on SMCA systems */
  33. __u64 ipid; /* MCA_IPID MSR: only valid on SMCA systems */
  34. __u64 ppin; /* Protected Processor Inventory Number */
  35. __u32 microcode; /* Microcode revision */
  36. __u64 kflags; /* Internal kernel use */
  37. };
  38. #define MCE_GET_RECORD_LEN _IOR('M', 1, int)
  39. #define MCE_GET_LOG_LEN _IOR('M', 2, int)
  40. #define MCE_GETCLEAR_FLAGS _IOR('M', 3, int)
  41. #endif /* _ASM_X86_MCE_H */