Vol. 3C 35-75
MODEL-SPECIFIC REGISTERS (MSRS)
48BH
1163
IA32_VMX_PROCBASED_
CTLS2
Core
Capability Reporting Register of Secondary Processor-based
VM-execution Controls (R/O)
See Appendix A.3, “VM-Execution Controls.”
48CH
1164
IA32_VMX_EPT_VPID_ENU
M
Core
Capability Reporting Register of EPT and VPID (R/O)
See Table 35-2
48DH
1165
IA32_VMX_TRUE_PINBASE
D_CTLS
Core
Capability Reporting Register of Pin-based VM-execution Flex
Controls (R/O)
See Table 35-2
48EH
1166
IA32_VMX_TRUE_PROCBA
SED_CTLS
Core
Capability Reporting Register of Primary Processor-based
VM-execution Flex Controls (R/O)
See Table 35-2
48FH
1167
IA32_VMX_TRUE_EXIT_CT
LS
Core
Capability Reporting Register of VM-exit Flex Controls (R/O)
See Table 35-2
490H
1168
IA32_VMX_TRUE_ENTRY_C
TLS
Core
Capability Reporting Register of VM-entry Flex Controls (R/O)
See Table 35-2
491H
1169
IA32_VMX_FMFUNC
Core
Capability Reporting Register of VM-function Controls (R/O)
See Table 35-2
4C1H
1217
IA32_A_PMC0
Core
4C2H
1218
IA32_A_PMC1
Core
600H
1536
IA32_DS_AREA
Core
DS Save Area (R/W)
See Table 35-2.
See Section 18.12.4, “Debug Store (DS) Mechanism.”
660H
1632
MSR_CORE_C1_RESIDENCY Core
Note: C-state values are processor specific C-state code names,
unrelated to MWAIT extension C-state parameters or ACPI C-
States.
63:0
CORE C1 Residency Counter. (R/O)
Value since last reset that this core is in processor-specific C1
states. Counts at the TSC frequency.
6E0H
1760
IA32_TSC_DEADLINE
Core
TSC Target of Local APIC’s TSC Deadline Mode (R/W)
See Table 35-2
C000_
0080H
IA32_EFER
Core
Extended Feature Enables
See Table 35-2.
C000_
0081H
IA32_STAR
Core
System Call Target Address (R/W)
See Table 35-2.
C000_
0082H
IA32_LSTAR
Core
IA-32e Mode System Call Target Address (R/W)
See Table 35-2.
C000_
0084H
IA32_FMASK
Core
System Call Flag Mask (R/W)
See Table 35-2.
C000_
0100H
IA32_FS_BASE
Core
Map of BASE Address of FS (R/W)
See Table 35-2.
Table 35-6. MSRs Common to the Silvermont Microarchitecture and Newer Microarchitectures for Intel Atom
Processors
Address
Register Name
Scope
Bit Description
Hex
Dec