Stefan Reinauer wrote: > On 01.12.2010, at 11:46, Tobias Diedrich <[email protected]> wrote: > > > This adds a cbmem_toc_ptr_t structure, which is written just below the FADT, > > so we can find it using the FADP information. The actual writing is only > > implemented for the Intel 82371EB southbridge. > > Why is that needed?
There needs to be some way to find the backup area needed for saving the memory parts that will be overwritten by coreboot after disabling CAR. I chose to add a structure relative to the FADT address, because thats rather easy to find. And as Rudolf already said, maybe this should be exported as a coreboot-specific ACPI table (but that would make finding it a tad bit more complex I think). Another option would be to always use a fixed area directly after 1MB (as this should not be affected by framebuffers in main memory) instead of below TOM. -- Tobias PGP: http://8ef7ddba.uguu.de -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
