Messages in this thread | | | From | (david parsons) | Subject | Re: HIGH MEMORY access | Date | 3 Mar 2000 15:56:20 -0800 |
| |
In article <linux.kernel.20000303182214.56270.qmail@hotmail.com>, Lyle Coder <x_coder@hotmail.com> wrote: >Hello All, >I have a question. The BIOS engineers said that the MPS tables will be in >the highest region of the available RAM... greater than 1 GB if so much >memory is available. >Further more, the MPS tables will be in a region reported "unusable" by E820 >(Thats mentioned in the E820 spec).
Unusable, not ACPI nvs or reclaim?
Hmm. Mapping it into memory the easy way won't work very well, then, because that will make mem_map[] a fairly huge creature indeed (I've got some bioses around that glues an unusable segment right up at the 4gb boundary; I'd hate to eat 64mb for pagetables on a 32mb machine about as much as I'd hate having to poke around inside all the rom segments to see if they're special rom or plain ordinary rom so I could decide whether to map them into memory or not.)
____ david parsons \bi/ ouch. \/
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |