[coreboot] SeaBIOS debug output
Carl-Daniel Hailfinger
c-d.hailfinger.devel.2006 at gmx.net
Thu Jul 17 05:36:15 CEST 2008
On 17.07.2008 03:53, Peter Stuge wrote:
> On Wed, Jul 16, 2008 at 09:36:16PM -0400, Kevin O'Connor wrote:
>
>> stomping on the second payload.
>>
>
> Could be avoided by having seabios load payloads and maybe even ROMs
> from the larball that is the flash chip.
>
The stomping problem is still there in that case. If there's any stack,
it can be stomped on by the code executed from the option ROM.
I can see two ways out, both not really nice:
- checksum all important code and data, then compare the result
- reload all code, checksum only the data
- reload all code, preserve no data (which would include BIOS tables)
Regards,
Carl-Daniel
--
http://www.hailfinger.org/
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