Re: EBDA Question

[Bukie Mabayoje]

"H. Peter Anvin" wrote:

> Followup to:  <91888D455306F94EBD4D168954A9457C01297B87@xxxxxxxxxxxxxxxxxxxx>
> By author:    "Moore, Eric Dean" <Eric.Moore@xxxxxxxx>
> 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.

There are test software used in manufacturing  line that needs this DOS memory.

>
>
>         -hpa
>
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