Intel Server Management (ISM) Installation and User's Guide, Version 5.5.5 - HP Carrier-Grade Server cc3310

Parameter # Parameter Data (nonvolatile unless otherwise noted)
acknowledge
(semi-
volatile)
a
information should check the boot info and clear their corresponding bit after
consuming the boot options data.
Data 1: Write Mask
(write-only. This field is returned as 00h when read. This is to
eliminate the need for the BMC to provide storage for the Write Mask field.)
[7] - 1b = enable write to bit 7 of Data field
[6] - 1b = enable write to bit 6 of Data field
[5] - 1b = enable write to bit 5 of Data field
[4] - 1b = enable write to bit 4 of Data field
[3] - 1b = enable write to bit 3 of Data field
[2] - 1b = enable write to bit 2 of Data field
[1] - 1b = enable write to bit 1 of Data field
[0] - 1b = enable write to bit 0 of Data field
Data 2: Boot Initiator Acknowledge Data
The boot initiator should typically write FFh to this parameter prior to initiating
the boot. The boot initiator may write ‘0’s if it wants to intentionally direct a given
party to ignore the boot info. This field is automatically initialized to 00h when the
management controller is first powered up or reset.
[7] - reserved. Write as 1b. Ignore on read.
[6] - reserved. Write as 1b. Ignore on read.
[5] - reserved. Write as 1b. Ignore on read.
[4] - 0b = OEM has handled boot info.
[3] - 0b = SMS has handled boot info.
[2] - 0b = OS / service partition has handled boot info.
[1] - 0b = OS Loader has handled boot info.
[0] - 0b = BIOS/POST has handled boot info.