[coreboot] Added Shuttle SN25P wiki page & links
stepan at coresystems.de
Thu Sep 4 19:26:31 CEST 2008
Vincent Legoll wrote:
>> And a coreboot using them could probably be
>> argued to be a derivative work of the factory BIOS, and that is not
>> so good from a licensing perspective.
> That would be subject to local copyright laws, I think, and providing a
> way to load external ACPI tables would not be a problem in itself.
Remember though that just using "foreign" acpi tables will not work usually:
* Many DSDTs have pointers to other tables / data which need to be fixed
up during runtime or they will access memory in stupid locations
* Same applies for IO locations of certain hardware
* The ACPI code often communicates with an SMI handler in order to do
the deed. If there is no SMI handler there will not be a working ACPI
Please look at the ACPI implementation in coreboot to get an idea what
is currently there. It will evolve over time. And if you have a system
that needs ACPI or benefits from it, the project would gain a lot more
if you developed ACPI support for that board instead of borrowing a
> What the final user does with his right or behind his closed doors
> has no relationship with the fact that we allow to load external files.
What good is going through the effort of replacing your bios if you
replace it with a free-/non-free hybrid?
> Because we could certainly create the tables from scratch
> ourselves if we would like...
> (OK that would certainly be hard, but still...)
We did that for a couple of boards already.
> What would be cool, is an option in the coreboot build process to
> use the ACPI tools to extract tables from the running legacy BIOS
> and stuff them in the image being built. But would that be technically
> possible ?
Besides the fact that those tables wouldnt work with coreboot, I believe
technically it could be done, as long as you compile on the very system
you want to flash. (In which case you exactly have one try to get it
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