-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 >>> So I suggest why not let the logical bus contains all devices in the system. >> Because in a secure system you don't want the NIC device driver to see >> all other devices. This is why we need an IO manager that manages access >> to devices on a per-driver basis. > I thought only root could run drivers.
No. Especially, since L4 does not have a concept of users, there is no super-user or anything. Access to hardware resources is granted by the kernel to any user app that has the corresponding rights. > I'm sorry to ask again about the status of DDE Linux26 again. The hard disk > driver for TUDOS is based on DDE Linux26 or you wrote it from scratch? It is DDE-based. Not very hard, you can extract libATA code from Linux and need to add a few function stubs the the L4-specific DDE glue. > What about the graphic card since TUDOS already has graphic interface? TUDOS graphics are VGA-based, we don't use any hardware-accelerated driver there. Cheers, Bjoern -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkthn1MACgkQP5ijxgQLUNnRKwCglBQfsUG3eoMzeh24+B2LBX+C 72sAnA3AvuPfBhHDRiGeVXEOiWTSydeQ =+ZcI -----END PGP SIGNATURE-----
