Re: how linux reboot works
From: gopan (gop_kumar_at_hotmail.com)
Date: 03/21/04
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Date: 20 Mar 2004 19:49:29 -0800
> Yes, but as I mentioned earlier, during a cold boot, the processors
> address lines A20-A31 will be boosted by default such that this will
> ultimately produce the address 0xFFFFFFF0, you can find details
> regarding this in the intel manuals, according to those manuals, this
> artifitial boosting will last only till the first time we do a far
> jump.
>
> What I am worried about is again how this address is accessed during a
> reboot?
I think I got the answer and if I am correct it is achieved due to
memory shadowing ie the ROM contents getting copied to RAM initially
(below 1 MB) so that the real mode code can acess it.
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