PEP_PROCESSOR_PARK_PREFERENCE - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// pep_x.h
typedef struct _PEP_PROCESSOR_PARK_PREFERENCE {
PEPHANDLE Processor;
UCHAR PoPreference;
UCHAR PepPreference;
} PEP_PROCESSOR_PARK_PREFERENCE, *PPEP_PROCESSOR_PARK_PREFERENCE;
View the official Windows Driver Kit DDI reference// pepfx.h
typedef struct _PEP_PROCESSOR_PARK_PREFERENCE {
PEPHANDLE Processor;
UCHAR PoPreference;
UCHAR PepPreference;
} PEP_PROCESSOR_PARK_PREFERENCE, *PPEP_PROCESSOR_PARK_PREFERENCE;
View the official Windows Driver Kit DDI referenceNo description available.
The PEP_PROCESSOR_PARK_PREFERENCE structure indicates the preferences of the operating system and platform extension plug-in (PEP) regarding whether the specified processor should be parked to reduce power consumption.
ProcessorA PEPHANDLE value that identifies the processor. The PEP supplied this handle in a previous PEP_DPM_REGISTER_DEVICE notification.
PoPreferenceThe operating system's parking preference for this processor. For more information, see Remarks.
PepPreferenceThe PEP's parking preference for this processor. For more information, see Remarks.
The Processors member of the PEP_PPM_PARK_SELECTION structure is a pointer to an array of PEP_PROCESSOR_PARK_PREFERENCE structures.
The Processor and PoPreference members of the PEP_PROCESSOR_PARK_PREFERENCE structure contain input values that are supplied by the Windows power management framework when a PEP_NOTIFY_PPM_PARK_SELECTION notification is sent to the PEP. The PepPreference member contains an output value that the PEP writes to the structure in response to this notification.
The following table lists the three values that are defined for the PoPreference and PepPreference members.
| Parking preference | Value | Meaning |
|---|---|---|
| PROCESSOR_PARK_PREFERENCE_NONE | 0x0 | No preference. Either parked or unparked is okay. |
| PROCESSOR_PARK_PREFERENCE_PARKED | 0x1 | The operating system or PEP specifies that the processor should be parked. |
| PROCESSOR_PARK_PREFERENCE_UNPARKED | 0x2 | The operating system or PEP specifies that the processor should not be parked. |
The PEP_PROCESSOR_PARK_PREFERENCE structure indicates the preferences of the operating system and platform extension plug-in (PEP) regarding whether the specified processor should be parked to reduce power consumption.
ProcessorA PEPHANDLE value that identifies the processor. The PEP supplied this handle in a previous PEP_DPM_REGISTER_DEVICE notification.
PoPreferenceThe operating system's parking preference for this processor. For more information, see Remarks.
PepPreferenceThe PEP's parking preference for this processor. For more information, see Remarks.
The Processors member of the PEP_PPM_PARK_SELECTION structure is a pointer to an array of PEP_PROCESSOR_PARK_PREFERENCE structures.
The Processor and PoPreference members of the PEP_PROCESSOR_PARK_PREFERENCE structure contain input values that are supplied by the Windows power management framework when a PEP_NOTIFY_PPM_PARK_SELECTION notification is sent to the PEP. The PepPreference member contains an output value that the PEP writes to the structure in response to this notification.
The following table lists the three values that are defined for the PoPreference and PepPreference members.
| Parking preference | Value | Meaning |
|---|---|---|
| PROCESSOR_PARK_PREFERENCE_NONE | 0x0 | No preference. Either parked or unparked is okay. |
| PROCESSOR_PARK_PREFERENCE_PARKED | 0x1 | The operating system or PEP specifies that the processor should be parked. |
| PROCESSOR_PARK_PREFERENCE_UNPARKED | 0x2 | The operating system or PEP specifies that the processor should not be parked. |