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859334041d
commit fa94d0c6e0 upstream.
Updating microcode used to be relatively rare. Now that it has become
more common we should save the microcode version in a machine check
record to make sure that those people looking at the error have this
important information bundled with the rest of the logged information.
[ Borislav: Simplify a bit. ]
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Yazen Ghannam <yazen.ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/20180301233449.24311-1-tony.luck@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI_ASM_X86_MCE_H
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#define _UAPI_ASM_X86_MCE_H
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#include <linux/types.h>
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#include <linux/ioctl.h>
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/* Fields are zero when not available */
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struct mce {
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__u64 status;
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__u64 misc;
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__u64 addr;
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__u64 mcgstatus;
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__u64 ip;
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__u64 tsc; /* cpu time stamp counter */
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__u64 time; /* wall time_t when error was detected */
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__u8 cpuvendor; /* cpu vendor as encoded in system.h */
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__u8 inject_flags; /* software inject flags */
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__u8 severity;
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__u8 pad;
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__u32 cpuid; /* CPUID 1 EAX */
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__u8 cs; /* code segment */
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__u8 bank; /* machine check bank */
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__u8 cpu; /* cpu number; obsolete; use extcpu now */
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__u8 finished; /* entry is valid */
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__u32 extcpu; /* linux cpu number that detected the error */
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__u32 socketid; /* CPU socket ID */
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__u32 apicid; /* CPU initial apic ID */
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__u64 mcgcap; /* MCGCAP MSR: machine check capabilities of CPU */
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__u64 synd; /* MCA_SYND MSR: only valid on SMCA systems */
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__u64 ipid; /* MCA_IPID MSR: only valid on SMCA systems */
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__u64 ppin; /* Protected Processor Inventory Number */
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__u32 microcode;/* Microcode revision */
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};
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#define MCE_GET_RECORD_LEN _IOR('M', 1, int)
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#define MCE_GET_LOG_LEN _IOR('M', 2, int)
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#define MCE_GETCLEAR_FLAGS _IOR('M', 3, int)
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#endif /* _UAPI_ASM_X86_MCE_H */
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