On Tue, Feb 12, 2002 at 06:56:58AM -0000, Pichai Raghavan wrote: > My board is having 8MB of memory of which 2 MB is for the BIOS. I am > loading Linux at 2 MB but at initialisation time I give all 8MB for > Linux. Linux marks the 1st 2MB as non-usable and makes use of the > rest of the 6MB. > > I have a requirement to access the 1st 2MB directly from the user > space. Can anyone give me ideas as to how to do this? > > Is /dev/kmem a possible candidate? I am not sure how kmem behaves for > BIOS memory. Check out how Dosemu maps the VGA BIOS (see www.dosemu.org). Erik -- J.A.K. (Erik) Mouw, Information and Communication Theory Group, Faculty of Information Technology and Systems, Delft University of Technology, PO BOX 5031, 2600 GA Delft, The Netherlands Phone: +31-15-2783635 Fax: +31-15-2781843 Email: J.A.K.Mouw@its.tudelft.nl WWW: http://www-ict.its.tudelft.nl/~erik/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/
