Publication No. 500-657055-000 Rev. G
IPMI Firmware and OEM Extensions 65
B.3 Platform Events
The Abaco IPMI subsystem contains several sensors for reading the voltages and temperature of the
system. Each sensor is configured with a threshold, hysteresis, and nominal value. When the value of a
sensor crosses a threshold, a platform event is sent to the “Event Receiver”.
The following events are generated by the Abaco IPMI Subsystem:
• Threshold Events – Events of this type are generated if the sensors exceed their threshold settings.
Threshold events are either an Assertion Event or a De-Assertion Event.
Table B-18 NetFn 0x04, Cmd 0x02
The Generator ID field is a required element of an Event Request Message. For IPMB messages, this field
is equated to the Requestor’s Slave Address and LUN fields. Thus, the Generator ID information is not
carried in the data field of an IPMB request message.
Byte
Value
Data Field
Comments
Request-
data
-
-
Generator ID (RqSA,
RqLun)
1
03h
EvMRev
IPMB v 1.0 message
2
XXh
Sensor Type
02h = voltage sensors
01h = temperature
sensors
3
XXh
Sensor #
Sensor numbers will
be one of 41h, 42h,
43h, 44h, 60h or 61h
4
XXh
[7] - Event Dir
0b = Assertion Event
1b = De-assertion
Event
[6:0] - Event Type
Event Type indicates
the type of threshold
crossing that
produced the event.
5
XXh
Event Data 1
[7:6] – 01b = trigger
reading
in byte2
[5:4] – 01b = trigger
threshold
value in byte3
[3:0] - offset from Event/
Reading
code for threshold
event
6
XXh
Event Data 2
Sensor reading
7
XXh
Event Data 3
Threshold value that
triggered event.
Response-
data
1
XXh
Completion Code