[coreboot] Coreboot table

Stefan Reinauer stefan.reinauer at coreboot.org
Sun Mar 6 23:16:41 CET 2016


On 03/06/2016 07:50 AM, daoud yessine wrote:
> Hi
>
> I need your help please :)
>
> About coreboot table , where is its location in memory ? Its size ? 
> Its contents ? Is it saved in buffer ?
>

The coreboot table typically lives at the end of physical memory in the 
4G space (e.g. in "cbmem space"). There is a
forwarder entry pointing to it, living in the lower 4k of memory 
(typically at 0x500)

The coreboot table contains various information coreboot collects about 
the system, such as
- memory map
- coreboot version
- cmos options
- framebuffer configuration

You can use the nvramtool utility to dump the coreboot table and look at it.

Stefan
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