Re: UNDI Driver and Grub architecture.

[Jean-Jacques Michel]

Christoph Plattner a écrit :

> GRUB is mainly running in protected mode !
> But it has functions to switch to realmode and back to call BIOS
> interrupts.

For disk functions (Int 13h), to get mem size, to handle APM
and reboot call, mostly.
 
> I don't know, at the moment, if the kernel is booted from real mode,

It does call it from real mode, just before jumping to the setup segment
of the kernel.

> GRUB runs in protected mode, but with an 1:1 memory mapping between the
> physical and the virtual memory (AFAIK).

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Jean-Jacques Michel mailto:address@hidden - Mob : +33 (0)6 72 01 19
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