Real mode BIOS call in x86_64 Linux environment

smsabu2002@yahoo.com wrote:

> I have an application which gets Video controller information using
> VESA BIOS routines. It makes use of LRMI library for making real mode
> BIOS call in x86_32 bit Linux machine.
>
> Now, I need to port this application for x64 Linux. But, LRMI is
> limited only to x86_32 enviornment. Is there any other equivalent
> libarary for x64 porting ?
>
> Thanks in advance,
>
> Arun
Its going to be a real trick calling a real mode bios routine from x86_64
protected mode given that the register sizes, meanings, stack word widths are
all different. I would guess that switching to real mode from within linux
would make for a mess unless done by the kernel, and even then, it wouldnt be
a good thing.
I'm really sure, that whatever data/information you are trying to gather can
be gotten from /proc, /sys or somewhere like that, or possibly even from
carious files /etc. Dont re-invent the wheel if you dont have to. Also look
up SMBios aka DMI bios
Eric