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IPMI Feature Set
ATCA-7490 Installation and Use (6806800U11F
)
346
9.9
BIOS Boot Configuration Parameters
The IPMC allows storing BIOS setup variables in the NVRAM area of the BIOS flash. When BIOS
starts, it first copies its own set of NVRAM parameters into memory. Then it reads parameters
from the IPMC, adding new parameters to the parameter set in memory, and deleting or
modifying existing ones. During runtime, only the memory copy of the parameter set is used.
The parameters changed and stored in the BIOS setup menu are automatically saved back into
the non-volatile memory of the IPMC. The IPMI command being used to manage the boot
configuration variables is called Set/Get System Boot Options together with parameter #100.
For details, see
.
Storing BIOS Boot environment variables in IPMC non-volatile memory has the advantage,
which can be set by the ShMM or across HPI applications as well. The system manager may
decide from which boot device the blade should boot from.
The boot configuration parameters are stored as sets of <parameter name> and <value> pairs.
They can be easily enhanced and there are no dependencies between different versions of
IPMC firmware and payload firmware. The IPMC provides a set of boot configuration
parameters and the payload firmware just initializes those he knows about.
The boot options need to be stored as a sequence of zero terminated strings. The following
table describes in detail about format of the boot options to be used when setting or reading
the System Boot Options parameter #100.
Table 9-11 IPMC Boot Parameter storage format
Byte
Description
0-1
Number of bytes used for boot parameters (LSB first)
The number of bytes must be calculated and written into these two bytes by the
software, which writes into the storage area. The values
0x0000
and
0xFFFF
indicate that no data has been written to the storage area. If you are reading from
the storage area and you find any of these two values, your software should assume
that no boot firmware options have previously been written to the storage area.
Summary of Contents for ATCA-7490
Page 1: ...ATCA 7490 Installation and Use P N 6806800U11F December 2018 ...
Page 12: ...ATCA 7490 Installation and Use 6806800U11F Contents 12 Contents Contents ...
Page 20: ...ATCA 7490 Installation and Use 6806800U11F 20 List of Tables ...
Page 38: ...ATCA 7490 Installation and Use 6806800U11F Sicherheitshinweise 38 ...
Page 44: ...Introduction ATCA 7490 Installation and Use 6806800U11F 44 ...
Page 66: ...Hardware Preparation and Installation ATCA 7490 Installation and Use 6806800U11F 66 ...
Page 88: ...Controls Indicators and Connectors ATCA 7490 Installation and Use 6806800U11F 88 ...
Page 106: ...Functional Description ATCA 7490 Installation and Use 6806800U11F 106 ...
Page 199: ...BIOS ATCA 7490 Installation and Use 6806800U11F 199 Add an ISCSI Attempt ...
Page 226: ...BIOS ATCA 7490 Installation and Use 6806800U11F 226 Figure 6 25 Event Log Viewer ...
Page 356: ...IPMI Feature Set ATCA 7490 Installation and Use 6806800U11F 356 ...
Page 360: ...Replacing the Battery ATCA 7490 Installation and Use 6806800U11F 360 ...
Page 371: ......