Error Reporting and Handling
Intel® Server Board SE7520AF2 TPS
194
Revision
1.2
Intel order number C77866-003
7.2.2.6 Boot
Event
The BIOS downloads the system date and time to the BMC during POST and logs a boot event.
This record does not indicate an error, and software that parses the event log should treat it as
such.
7.2.2.7
Logging Format Conventions
The BIOS event log data in the SEL complies with the IPMI specification. IPMI requires use of
all but two bytes in each event log entry, called Event Data 2 and Event Data 3. An event
generator can specify that these bytes contain OEM-specified values. The system BIOS uses
these two bytes to record additional information about the error.
The format of the OEM data bytes (Event Data 2 and Event Data 3) for memory errors, PCI bus
errors and FRB2 errors is described here. This format is supported by all platforms that are IPMI
version 1.0 (or later) compliant.
Bits 3:1 of the generator ID field define the format revision. The system software ID is a 7-bit
quantity. For events covered in this document, the system software ID’s will be within the range
0x18-0x1F. System software ID of 0x18 indicates that OEM data byte 2 and 3 are encoded
using data format scheme revision 0. Note that the system software IDs in the range 0x10-0x1f
are reserved for the SMI handler. The IPMI specification reserves two distinct ranges for BIOS
and the SMI handler. Since the distinction between the two is not very important, we use the
same values of generator ID’s for the BIOS as well as the SMI handler. Technically, the FRB-2
event is not logged by the SMI handler, but it will use the same generator ID range as memory
errors.
Table 82. Memory Error Events
Field
IPMI definition
BIOS-Specific Implementation
Generator ID
7:1
System software ID or IPMB
slave address.
1=ID is system software ID
0=ID is IPMB slave address
7:4 0x3 for system BIOS
3:1 0
Format revision, Revision of the data format for
OEM data bytes 2 and 3, For this revision of the
specification, set this field to 0. All other revisions are
reserved.
0
1 = ID is system software ID.
As a result, the generator ID byte will start from 0x31 and
go up to 0x3f, in increments of 2 for events logged by the
BIOS.
Sensor Type
See Table 30.3 in the Intelligent
Platform Management Specification,
Version 1.5.
0xC for memory errors
Sensor Number
Number of sensor that generated this
event
Unique value for each type of event because IPMI
specification requires it that way. This field has no other
significance. Should not be displayed to the end user if the
event is logged by BIOS.
Type code
0x6F if event offsets are specific to
the sensor
0x6F