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Diffstat (limited to 'arch/x86/include/asm/mce.h')
-rw-r--r--arch/x86/include/asm/mce.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index ba2062d6df92..a0f147893a04 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -136,9 +136,24 @@
#define MCE_HANDLED_NFIT BIT_ULL(3)
#define MCE_HANDLED_EDAC BIT_ULL(4)
#define MCE_HANDLED_MCELOG BIT_ULL(5)
+
+/*
+ * Indicates an MCE which has happened in kernel space but from
+ * which the kernel can recover simply by executing fixup_exception()
+ * so that an error is returned to the caller of the function that
+ * hit the machine check.
+ */
#define MCE_IN_KERNEL_RECOV BIT_ULL(6)
/*
+ * Indicates an MCE that happened in kernel space while copying data
+ * from user. In this case fixup_exception() gets the kernel to the
+ * error exit for the copy function. Machine check handler can then
+ * treat it like a fault taken in user mode.
+ */
+#define MCE_IN_KERNEL_COPYIN BIT_ULL(7)
+
+/*
* This structure contains all data related to the MCE log. Also
* carries a signature to make it easier to find from external
* debugging tools. Each entry is only valid when its finished flag