16f52b16cSGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2af170c50SDavid Howells #ifndef _UAPI_ASM_X86_MCE_H 3af170c50SDavid Howells #define _UAPI_ASM_X86_MCE_H 4af170c50SDavid Howells 5af170c50SDavid Howells #include <linux/types.h> 67e0abcd6SGabriel Laskar #include <linux/ioctl.h> 7af170c50SDavid Howells 824193c5dSBorislav Petkov /* 924193c5dSBorislav Petkov * Fields are zero when not available. Also, this struct is shared with 1024193c5dSBorislav Petkov * userspace mcelog and thus must keep existing fields at current offsets. 1124193c5dSBorislav Petkov * Only add new fields to the end of the structure 1224193c5dSBorislav Petkov */ 13af170c50SDavid Howells struct mce { 1424193c5dSBorislav Petkov __u64 status; /* Bank's MCi_STATUS MSR */ 1524193c5dSBorislav Petkov __u64 misc; /* Bank's MCi_MISC MSR */ 1624193c5dSBorislav Petkov __u64 addr; /* Bank's MCi_ADDR MSR */ 1724193c5dSBorislav Petkov __u64 mcgstatus; /* Machine Check Global Status MSR */ 1824193c5dSBorislav Petkov __u64 ip; /* Instruction Pointer when the error happened */ 1924193c5dSBorislav Petkov __u64 tsc; /* CPU time stamp counter */ 2024193c5dSBorislav Petkov __u64 time; /* Wall time_t when error was detected */ 2124193c5dSBorislav Petkov __u8 cpuvendor; /* Kernel's X86_VENDOR enum */ 2224193c5dSBorislav Petkov __u8 inject_flags; /* Software inject flags */ 2324193c5dSBorislav Petkov __u8 severity; /* Error severity */ 24c0ec382eSBorislav Petkov __u8 pad; 25af170c50SDavid Howells __u32 cpuid; /* CPUID 1 EAX */ 2624193c5dSBorislav Petkov __u8 cs; /* Code segment */ 2724193c5dSBorislav Petkov __u8 bank; /* Machine check bank reporting the error */ 2824193c5dSBorislav Petkov __u8 cpu; /* CPU number; obsoleted by extcpu */ 2924193c5dSBorislav Petkov __u8 finished; /* Entry is valid */ 3024193c5dSBorislav Petkov __u32 extcpu; /* Linux CPU number that detected the error */ 31af170c50SDavid Howells __u32 socketid; /* CPU socket ID */ 3224193c5dSBorislav Petkov __u32 apicid; /* CPU initial APIC ID */ 33af170c50SDavid Howells __u64 mcgcap; /* MCGCAP MSR: machine check capabilities of CPU */ 34db819d60SYazen Ghannam __u64 synd; /* MCA_SYND MSR: only valid on SMCA systems */ 355828c46fSYazen Ghannam __u64 ipid; /* MCA_IPID MSR: only valid on SMCA systems */ 363f5a7896STony Luck __u64 ppin; /* Protected Processor Inventory Number */ 37fa94d0c6STony Luck __u32 microcode; /* Microcode revision */ 38*f82cdff1STony Luck __u64 kflags; /* Internal kernel use */ 39af170c50SDavid Howells }; 40af170c50SDavid Howells 41af170c50SDavid Howells #define MCE_GET_RECORD_LEN _IOR('M', 1, int) 42af170c50SDavid Howells #define MCE_GET_LOG_LEN _IOR('M', 2, int) 43af170c50SDavid Howells #define MCE_GETCLEAR_FLAGS _IOR('M', 3, int) 44af170c50SDavid Howells 45af170c50SDavid Howells #endif /* _UAPI_ASM_X86_MCE_H */ 46