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15-16 Vol. 3
MACHINE-CHECK ARCHITECTURE
Table 15-5. Extended Machine Check State MSRs
In Processors With Support For Intel 64 Architecture
MSR Address Description
IA32_MCG_RAX 180H Contains state of the RAX register at the time of the machine-
check error.
IA32_MCG_RBX 181H Contains state of the RBX register at the time of the machine-
check error.
IA32_MCG_RCX 182H Contains state of the RCX register at the time of the machine-
check error.
IA32_MCG_RDX 183H Contains state of the RDX register at the time of the machine-
check error.
IA32_MCG_RSI 184H Contains state of the RSI register at the time of the machine-
check error.
IA32_MCG_RDI 185H Contains state of the RDI register at the time of the machine-
check error.
IA32_MCG_RBP 186H Contains state of the RBP register at the time of the machine-
check error.
IA32_MCG_RSP 187H Contains state of the RSP register at the time of the machine-
check error.
IA32_MCG_RFLAGS 188H Contains state of the RFLAGS register at the time of the
machine-check error.
IA32_MCG_RIP 189H Contains state of the RIP register at the time of the machine-
check error.
IA32_MCG_MISC 18AH When set, indicates that a page assist or page fault occurred
during DS normal operation.
IA32_MCG_
RSERVED[1:5]
18BH-
18FH
These registers, if present, are reserved.
IA32_MCG_R8 190H Contains state of the R8 register at the time of the machine-
check error.
IA32_MCG_R9 191H Contains state of the R9 register at the time of the machine-
check error.
IA32_MCG_R10 192H Contains state of the R10 register at the time of the machine-
check error.
IA32_MCG_R11 193H Contains state of the R11 register at the time of the machine-
check error.
IA32_MCG_R12 194H Contains state of the R12 register at the time of the machine-
check error.
IA32_MCG_R13 195H Contains state of the R13 register at the time of the machine-
check error.