Advanced Configuration and Power Interface Specification

ACPI Software Programming Model
Table 5-155 Processor Aggregator Device Notification Values
Hex value
0x80
0x81-0xBF
Description
Processor Utilisation Request. Used to notify OSPM that OSPM evaluates the _PUR
object which indicates to OSPM the number of logical processors to be idled.
Reserved.
Table 5-156 Error Device Notification Values
Hex value
0x80
0x81-0xBF
Description
Notification For Generic Error Sources. Used to notify OSPM to respond to this notification
by checking the error status block of all generic error sources to identify the source reporting
the error.
Reserved.
Table 5-157 Fan Device Notification Values
Hex value
0x80
0x81-0xBF
Description
Low Fan Speed. Used to notify OSPM of a low (errant) fan speed. Causes OSPM to reevaluate
the _FSL object.
Reserved.
Table 5-158 Memory Device Notification Values
Hex value
0x80
0x81
0x82-0xBF
Description
Memory Bandwidth Low Threshold crossed. Used to notify OSPM that bandwidth of
memory described by the memory device has been reduced by the platform to less than the
low memory bandwidth threshold.
Memory Bandwidth High Threshold crossed. Used to notify OSPM that bandwidth of
memory described by the memory device has been increased by the platform to greater than
or equal to the high memory bandwidth threshold.
Reserved.
Table 5-159 Processor Aggregator Device Notification Value
Hex value
0x80
0x81-0xBF
Description
Processor Utilization Request. Used to notify OSPM that OSPM evaluates the _PUR
object which indicates to OSPM the number of logical processors to be idled.
Reserved.
Table 5-160 Error Device Notification Values
Hex value
0x80
Description
Notification For Generic Error Sources. Used to notify OSPM to respond to this
notification by checking the error status block of all generic error sources to identify the
source reporting the error.
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