Looks great to me...

Acked-by: Pattrick Hueper <[email protected]>

On Thu, Jan 13, 2011 at 12:00 PM, Joseph Smith <[email protected]> wrote:
>
>
> On Thu, 13 Jan 2011 11:05:55 +0100, Patrick Georgi
> <[email protected]> wrote:
>> Hi,
>>
>> attached patch improves compatibility of YABEL with realmode execution
>> of the VGA BIOS by passing through access to IVT, BDA and option ROM
>> area directly, instead of copying them from the emulated memory to real
>> memory after initialization is done.
>>
>> Some VGA BIOSes seem to map hardware registers into the option ROM area,
>> so routing accesses to these into emulated RAM will lead to all kinds of
>> unexpected behaviour.
>>
>> The intent of YABEL in coreboot is to provide improved security by
>> isolating hardware access - this patch doesn't improve or degrade
>> security as the memory regions in question were already copied back
>> after emulation before this patch.
>>
>>
>> Signed-off-by: Patrick Georgi <[email protected]>
>
> Nice work!
>
> Acked-by: Joseph Smith <[email protected]>
>
> --
> Thanks,
> Joseph Smith
> Set-Top-Linux
> www.settoplinux.org
>
>
> --
> coreboot mailing list: [email protected]
> http://www.coreboot.org/mailman/listinfo/coreboot
>

-- 
coreboot mailing list: [email protected]
http://www.coreboot.org/mailman/listinfo/coreboot

Reply via email to