On 4/4/08, Anthony Liguori <[EMAIL PROTECTED]> wrote:
> Jun Koi wrote:
>
> > On 4/4/08, Laurent Vivier <[EMAIL PROTECTED]> wrote:
> >
> >
> > > Le vendredi 04 avril 2008 à 18:29 +0900, Jun Koi a écrit :
> > >
> > >
> > >
> > > > On 4/3/08, Anthony Liguori <[EMAIL PROTECTED]> wrote:
> > > >
> > > >
> > > > > Jun Koi wrote:
> > > > >
> > > > > > Hi,
> > > > > >
> > > > > > Could someone please post some concret examples on how to use
> extboot?
> > > > > > I looked around, but saw nothing.
> > > > > >
> > > > > >
> > > > >
> > > > > Just append boot=on to your -drive parameter.
> > > > >
> > > >
> > > > OK, but the question is that when I need to have "boot=on"? Because
> > > > without it (or "boot=off"), -drive still works in some cases, right?
> > >
> > >
> > > You need extboot when you want to boot from a disk which is not managed
> > > by IDE controller.
> > >
> > >
> >
> > I see, thanks.
> >
> > in extboot.S, I see some dead code, like the macro "callout". Perhaps
> > it is there for testing. It is better to get rid of it.
> >
> >
>
> It's debug code and it's not compiled in unless it's used so there's no
> point in eliminating it. I personally do not enjoy rewriting 16-bit
> assembly code :-)
I understand your feeling :-)
BTW, in the send_command code we have something like this:
push %ax
mov 2(%bx), %ax
pop %ax
Just doesnt look right to me.
Thanks,
Jun
>
>
> Regards,
>
> Anthony Liguori
>
>
> > Thanks,
> > Jun
> >
> >
>
>
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