1 files changed, 44 insertions, 0 deletions
diff --git a/arch/x86/include/uapi/asm/mce.h b/arch/x86/include/uapi/asm/mce.h
new file mode 100644
index 000000000..955c2a2e1
--- /dev/null
+++ b/arch/x86/include/uapi/asm/mce.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_MCE_H
+#define _UAPI_ASM_X86_MCE_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+/*
+ * Fields are zero when not available. Also, this struct is shared with
+ * userspace mcelog and thus must keep existing fields at current offsets.
+ * Only add new fields to the end of the structure
+ */
+struct mce {
+	__u64 status;		/* Bank's MCi_STATUS MSR */
+	__u64 misc;		/* Bank's MCi_MISC MSR */
+	__u64 addr;		/* Bank's MCi_ADDR MSR */
+	__u64 mcgstatus;	/* Machine Check Global Status MSR */
+	__u64 ip;		/* Instruction Pointer when the error happened */
+	__u64 tsc;		/* CPU time stamp counter */
+	__u64 time;		/* Wall time_t when error was detected */
+	__u8  cpuvendor;	/* Kernel's X86_VENDOR enum */
+	__u8  inject_flags;	/* Software inject flags */
+	__u8  severity;		/* Error severity */
+	__u8  pad;
+	__u32 cpuid;		/* CPUID 1 EAX */
+	__u8  cs;		/* Code segment */
+	__u8  bank;		/* Machine check bank reporting the error */
+	__u8  cpu;		/* CPU number; obsoleted by extcpu */
+	__u8  finished;		/* Entry is valid */
+	__u32 extcpu;		/* Linux CPU number that detected the error */
+	__u32 socketid;		/* CPU socket ID */
+	__u32 apicid;		/* CPU initial APIC ID */
+	__u64 mcgcap;		/* MCGCAP MSR: machine check capabilities of CPU */
+	__u64 synd;		/* MCA_SYND MSR: only valid on SMCA systems */
+	__u64 ipid;		/* MCA_IPID MSR: only valid on SMCA systems */
+	__u64 ppin;		/* Protected Processor Inventory Number */
+	__u32 microcode;	/* Microcode revision */
+};
+
+#define MCE_GET_RECORD_LEN   _IOR('M', 1, int)
+#define MCE_GET_LOG_LEN      _IOR('M', 2, int)
+#define MCE_GETCLEAR_FLAGS   _IOR('M', 3, int)
+
+#endif /* _UAPI_ASM_X86_MCE_H */