Platform Events; Table B-18 Netfn 0X04, Cmd 0X02 - ABACO VMICPCI-7055 Hardware Reference Manual

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.
Publication No. 500-657055-000 Rev. G
Byte
Request- -
data
1
2
3
4
5
6
7
Response- 1
data
Value Data Field
- Generator ID (RqSA,
RqLun)
03h EvMRev
XXh Sensor Type
XXh Sensor #
XXh [7] - Event Dir
0b = Assertion Event
1b = De-assertion
Event
[6:0] - Event Type
XXh Event Data 1
[7:6] – 01b = trigger
reading
[5:4] – 01b = trigger
threshold
[3:0] - offset from Event/
Reading
code for threshold
event
XXh Event Data 2
XXh Event Data 3
XXh Completion Code
Comments
IPMB v 1.0 message
02h = voltage sensors
01h = temperature
sensors
Sensor numbers will
be one of 41h, 42h,
43h, 44h, 60h or 61h
Event Type indicates
the type of threshold
crossing that
produced the event.
in byte2
value in byte3
Sensor reading
Threshold value that
triggered event.
IPMI Firmware and OEM Extensions 65