[coreboot] Types in E820 memory detection

Rick van Rein rick at groengemak.nl
Fri Oct 3 09:22:22 CEST 2008


The INT 0x15, EAX=0xE820 function lists available memory, including a type.
Who defines those types?  Or is it simply what BIOSes happen to be doing?

I found a list of types on


and would like to add a few types, like

Type 0xBAD1: BadRAM address/mask pair
Type 0xF1A5: Flash memory on the memory bus (so, NOR Flash)

and am in search for the best way to do this.


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