Followup to: <[EMAIL PROTECTED]>
By author: "Moore, Eric Dean" <[EMAIL PROTECTED]>
In newsgroup: linux.dev.kernel
>
> EBDA - Extended Bios Data Area
>
> Does Linux and various boot loaders(lilo/grub/etc)
> having any restrictions on where and how big
> memory allocated in EBDA is? Is this
> handled for 2.4/2.6 Kernels?
>
> Reason I ask is we are considering having
> BIOS(for a SCSI HBA Controller) allocating
> memory in EBDA for Firmware use.
> We are concerned whether Linux would be writing
> over this region of memory during the handoff
> of BIOS to scsi lower layer driver loading.
>
In general, dropping the EBDA below 0x9a000 is probably a
bad idea. Recent Linux kernels and boot loaders should handle it,
though. Keep in mind that you might find yourself in serious trouble
if you then have, for example, a PXE stack layered on top of your SCSI
BIOS.
-hpa
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