86
8.2.4.6.2 Hardware PM State Control
Hardware PM State Control interface is used to set the options related with the hardware
PM state.
Figure 8-58
Table 8-33 Hardware PM State Control Interface Instruction Table
Interface Parameters
Function Description
Default Value
Hardware P-Sta
tes
Hardware P-States is set by OS automatically or not, the default
value is decided based on the actual test. Options include:
Disabled: based on legacy OS request
Native Mode: based on legacy OS boot
Out of Band Mode: hardware auto select, no OS boot
Native Mode with No Legacy Support
Native Mode
EPP Enable
EPP on-off settings. Options include:
Enabled
Disabled
Enabled
8.2.4.6.3 CPU C State Control
CPU C State Control interface is used to set the options related with the CPU C state, for
controlling the power consumption of CPU in idle state.