1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun #ifndef _UAPI_ASM_X86_MCE_H 3*4882a593Smuzhiyun #define _UAPI_ASM_X86_MCE_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <linux/types.h> 6*4882a593Smuzhiyun #include <linux/ioctl.h> 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun /* 9*4882a593Smuzhiyun * Fields are zero when not available. Also, this struct is shared with 10*4882a593Smuzhiyun * userspace mcelog and thus must keep existing fields at current offsets. 11*4882a593Smuzhiyun * Only add new fields to the end of the structure 12*4882a593Smuzhiyun */ 13*4882a593Smuzhiyun struct mce { 14*4882a593Smuzhiyun __u64 status; /* Bank's MCi_STATUS MSR */ 15*4882a593Smuzhiyun __u64 misc; /* Bank's MCi_MISC MSR */ 16*4882a593Smuzhiyun __u64 addr; /* Bank's MCi_ADDR MSR */ 17*4882a593Smuzhiyun __u64 mcgstatus; /* Machine Check Global Status MSR */ 18*4882a593Smuzhiyun __u64 ip; /* Instruction Pointer when the error happened */ 19*4882a593Smuzhiyun __u64 tsc; /* CPU time stamp counter */ 20*4882a593Smuzhiyun __u64 time; /* Wall time_t when error was detected */ 21*4882a593Smuzhiyun __u8 cpuvendor; /* Kernel's X86_VENDOR enum */ 22*4882a593Smuzhiyun __u8 inject_flags; /* Software inject flags */ 23*4882a593Smuzhiyun __u8 severity; /* Error severity */ 24*4882a593Smuzhiyun __u8 pad; 25*4882a593Smuzhiyun __u32 cpuid; /* CPUID 1 EAX */ 26*4882a593Smuzhiyun __u8 cs; /* Code segment */ 27*4882a593Smuzhiyun __u8 bank; /* Machine check bank reporting the error */ 28*4882a593Smuzhiyun __u8 cpu; /* CPU number; obsoleted by extcpu */ 29*4882a593Smuzhiyun __u8 finished; /* Entry is valid */ 30*4882a593Smuzhiyun __u32 extcpu; /* Linux CPU number that detected the error */ 31*4882a593Smuzhiyun __u32 socketid; /* CPU socket ID */ 32*4882a593Smuzhiyun __u32 apicid; /* CPU initial APIC ID */ 33*4882a593Smuzhiyun __u64 mcgcap; /* MCGCAP MSR: machine check capabilities of CPU */ 34*4882a593Smuzhiyun __u64 synd; /* MCA_SYND MSR: only valid on SMCA systems */ 35*4882a593Smuzhiyun __u64 ipid; /* MCA_IPID MSR: only valid on SMCA systems */ 36*4882a593Smuzhiyun __u64 ppin; /* Protected Processor Inventory Number */ 37*4882a593Smuzhiyun __u32 microcode; /* Microcode revision */ 38*4882a593Smuzhiyun __u64 kflags; /* Internal kernel use */ 39*4882a593Smuzhiyun }; 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun #define MCE_GET_RECORD_LEN _IOR('M', 1, int) 42*4882a593Smuzhiyun #define MCE_GET_LOG_LEN _IOR('M', 2, int) 43*4882a593Smuzhiyun #define MCE_GETCLEAR_FLAGS _IOR('M', 3, int) 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun #endif /* _UAPI_ASM_X86_MCE_H */ 46