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

[Fred .]

Sounds like a rootkit.


On Thu, Jun 6, 2013 at 9:35 PM, Jerry Backer <bataille16 at gmail.com> wrote:

> 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 . <eldmannen at gmail.com> 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 <bataille16 at gmail.com>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,
>>>
>>> --
>>> Jerry
>>>
>>> _______________________________________________
>>> SeaBIOS mailing list
>>> SeaBIOS at seabios.org
>>> http://www.seabios.org/mailman/listinfo/seabios
>>>
>>>
>>
>
>
> --
> Jerry Backer
>
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