In current design, the formal released BIOS can’t output the debug message and if
we want to get the debug message, we need to re-build another debug version
When issue is happened on customer or factory side, it will cost a lot of time to fix an
issue. The issue needs to be recorded, reproduced and ship machine to RD to
provide the solution.
Some issues may not be reproduced in debug-version BIOS.
In order to shorten the turnaround time from issue happened to get the, BIOS
support to link debug message database dynamically in formal release version.
BIOS will prepare a debug message database which can be placed in everywhere
that can be accessed by database interface driver.
BIOS will prepare a debug database interface UEFI driver which can be put
everywhere that can be launched by BIOS as earlier as possible.
Once the formal BIOS detected the debug message database and the debug
database interface, then BIOS will auto output the debug by the interface and
The first line staff can plug a removable storage (an example) within the database
and the database interface driver into the computer and get the debug message. So
that RD can start debugging at very early stage.
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INC, HP, "DYNAMIC LINK BIOS DEBUG MESSAGE", Technical Disclosure Commons, (May 26, 2020)