Re: [SeaBIOS] Running privilege code on hidden O.S.

[Jerry Backer]

Hi,

The idea is to run some security and packet inspection codes on the hidden
core.
There is a typo on the title, it should be 'Running privilege code on
hidden core'.

Thanks,

On Thu, Jun 6, 2013 at 3:04 PM, Fred .  wrote:
> I am curious as to why you would want to do such a thing...
>
> On Thu, Jun 6, 2013 at 6:52 PM, Jerry Backer  wrote:
> > Hello,
> >
> > I am using seaBIOS with QEMU and am attempting to hide a processor core
> > (on an smp system) from the O.S. and then load a dedicated code on that
> > core before boot. I have managed to hide one of the cores by decreasing
> > CountCPUs (within smp.c) after running the ap core code, hence the BIOS
> > load info for 1 less core on the mp table.
> >
> > However, I have not been able to figure out how to load the privileged
> > code. My intuition was to load it when the hidden core enters protected
> > mode before running kernel code. But I don't see where in the code the
> > cores go into protected mode during boot.
> >
> > Can anyone give me some insight on how to proceed?
> >
> > Thanks,
> >
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> > http://www.seabios.org/mailman/listinfo/seabios