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Re: efi platform and multiboot kernel

From: Robert Millan
Subject: Re: efi platform and multiboot kernel
Date: Thu, 19 Jun 2008 00:23:13 +0200
User-agent: Mutt/1.5.13 (2006-08-11)

On Wed, Jun 18, 2008 at 07:59:22PM +0200, Yoshinori K. Okuji wrote:
> On Wednesday 18 June 2008 08:27:09 Bean wrote:
> > On Wed, Jun 18, 2008 at 4:32 AM, David Holloway <address@hidden> wrote:
> > > I've just edumacated myself about how the platforms are defined.
> > >
> > > Let me get this straight, the efi platform does not yet support loading a
> > > multiboot kernel?
> > >
> > > I'm working with embedded kernels here, not just Linux.
> >
> > Hi,
> >
> > It's not difficult to add multiboot support, but the question is, can
> > they support efi ? In linux, we can pass the efi system table using
> > boot parameter, but there is no such thing in multiboot, so the kernel
> > need to be able to access hardware directly after taking over.
> Note that the Multiboot Specificatin 2 is designed to be capable of 
> supporting 
> a wide range of platforms. All you must do is define the spec for EFI (and 
> implement it).

Wouldn't it be better to make it firmware-agnostic?  Then loadees can choose
to either be firmware-specific or (better, IMHO) use standalone drivers like
Linux and most kernels do.

Robert Millan

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