Vol. 3C 35-93
MODEL-SPECIFIC REGISTERS (MSRS)
3
Set 1 to cause Ovf_PMC3 = 1
31:4
Reserved.
32
Set 1 to cause Ovf_FixedCtr0 = 1
33
Set 1 to cause Ovf_FixedCtr1 = 1
34
Set 1 to cause Ovf_FixedCtr2 = 1
54:35
Reserved.
55
Set 1 to cause Trace_ToPA_PMI = 1
57:56
Reserved.
58
Set 1 to cause LBR_Frz = 1
59
Set 1 to cause CTR_Frz = 1
60
Set 1 to cause ASCI = 1
61
Set 1 to cause Ovf_Uncore
62
Set 1 to cause Ovf_BufDSSAVE
63
Reserved.
392H
914
IA32_PERF_GLOBAL_INUSE
3F1H
1009
MSR_PEBS_ENABLE
Core
See Table 35-2. See Section 18.4.4, “Precise Event Based Sampling
0
Enable PEBS trigger and recording for the programmed event
(precise or otherwise) on IA32_PMC0. (R/W)
3F8H
1016
MSR_PKG_C3_RESIDENCY
Package
Note: C-state values are processor specific C-state code names,
unrelated to MWAIT extension C-state parameters or ACPI C-
States.
63:0
Package C3 Residency Counter. (R/O)
Value since last reset that this package is in processor-specific C3
states. Count at the same frequency as the TSC.
3F9H
1017
MSR_PKG_C6_RESIDENCY
Package
Note: C-state values are processor specific C-state code names,
unrelated to MWAIT extension C-state parameters or ACPI C-
States.
63:0
Package C6 Residency Counter. (R/O)
Value since last reset that this package is in processor-specific C6
states. Count at the same frequency as the TSC.
3FCH
1020
MSR_CORE_C3_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 C3 Residency Counter. (R/O)
Value since last reset that this core is in processor-specific C3
states. Count at the same frequency as the TSC.
Table 35-12. MSRs in Next Generation Intel Atom Processors Based on the Goldmont Microarchitecture (Contd.)
Address
Register Name
Scope
Bit Description
Hex
Dec