2008/8/24 W. Michael Petullo <[EMAIL PROTECTED]>: >>> I am interested in modifying GRUB to read DMI data from my BIOS >>> (i.e., the data dmidecode reads). The SMBIOS specification seems to >>> state that the Plug-n-Play function interface is deprecated while the >>> table-based interface requires a processor running in 32- or 64-bit >>> protected mode. Does anyone know where I could find information on a >>> non-deprecated method to read DMI data while in real mode? >> >> But you just said this can be done by parsing tables in i386 32-bit mode, >> why not just do that? >> >> Btw, which information do you need to obtain from there? > > I was under the impression that the DMI tables could be stored above 1MB, > and that these memory locations were not easily accessible when in real > mode. > > I have now found that, at least in my hardware's case, the DMI tables are > below 1MB and easily read. Is this the case for all hardware? > > I have a client that has a piece of hardware that provides an electronic key > via DMI when a physical key is inserted into the device. I am writing a > command that will read that key and store it in GRUB's environment for > Michael Gorven's LUKS module to pick up. > > Mike > > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > http://lists.gnu.org/mailman/listinfo/grub-devel >
The environment of a GRUB module is 32-bit pmode - you can "directly" access DMI: why do you need real mode? -Habbit _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel
