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 fields to the end of the structure 12 */ 13 struct mce { 14 __u64 status; /* Bank's MCi_STATUS MSR */ 15 __u64 misc; /* Bank's MCi_MISC MSR */ 16 __u64 addr; /* Bank's MCi_ADDR MSR */ 17 __u64 mcgstatus; /* Machine Check Global Status MSR */ 18 __u64 ip; /* Instruction Pointer when the error happened */ 19 __u64 tsc; /* CPU time stamp counter */ 20 __u64 time; /* Wall time_t when error was detected */ 21 __u8 cpuvendor; /* Kernel's X86_VENDOR enum */ 22 __u8 inject_flags; /* Software inject flags */ 23 __u8 severity; /* Error severity */ 24 __u8 pad; 25 __u32 cpuid; /* CPUID 1 EAX */ 26 __u8 cs; /* Code segment */ 27 __u8 bank; /* Machine check bank reporting the error */ 28 __u8 cpu; /* CPU number; obsoleted by extcpu */ 29 __u8 finished; /* Entry is valid */ 30 __u32 extcpu; /* Linux CPU number that detected the error */ 31 __u32 socketid; /* CPU socket ID */ 32 __u32 apicid; /* CPU initial APIC ID */ 33 __u64 mcgcap; /* MCGCAP MSR: machine check capabilities of CPU */ 34 __u64 synd; /* MCA_SYND MSR: only valid on SMCA systems */ 35 __u64 ipid; /* MCA_IPID MSR: only valid on SMCA systems */ 36 __u64 ppin; /* Protected Processor Inventory Number */ 37 __u32 microcode; /* Microcode revision */ 38 }; 39 40 #define MCE_GET_RECORD_LEN _IOR('M', 1, int) 41 #define MCE_GET_LOG_LEN _IOR('M', 2, int) 42 #define MCE_GETCLEAR_FLAGS _IOR('M', 3, int) 43 44 #endif /* _UAPI_ASM_X86_MCE_H */ 45