[LinuxBIOS] First instruction in linuxbios
yinghailu at gmail.com
Fri Aug 5 22:34:23 CEST 2005
early_mtrr.inc is not needed, and it is merged into car.inc and car_post.c
On 8/5/05, Stefan Reinauer <stepan at openbios.org> wrote:
> * Jorge Cardona <jorgeecardona at gmail.com> [050701 18:29]:
> > Hi.
> > I'm new in this, and i'm reading the source and i have a question, which one
> > it's exactly the first instruction that the processor execute when the pc is
> > booting?, in which file is it?
> Here's a little summary I wrote a while ago.. don't know if it is still
> correct and complete.
> > I don't complete understand the relationship between a normal bios and the
> > kernel, i think that the bios it's has to pass some data to the kernel, if
> > that's true ¿how exactly is that data passed to the kernel?
> There are several possibilities. Either the information is placed at
> well known addresses or in a certain address range, using a signature so
> the kernel can find it.
> Or the Kernel does callbacks (intXX).
> > In linuxbios, how it's this issue handle?
> LinuxBIOS provides tables: ACPI, MPTABLE, PIRQ table, and a LinuxBIOS
> table which should some day obsolete all the other tables.
> No callbacks. They are considered unsafe and error prone.
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> LinuxBIOS at openbios.org
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