Re: [coreboot] [SerialICE] Boots from PCI add-on card on Intel ICHs

[Patrick Georgi]

Am Mo 21 Mai 2012 05:32:42 CEST schrieb ron minnich:
> Maybe I misunderstand, but this is how Etherboot originally worked:
> flash a new expansion rom onto, e.g., a 3c905 and that could take over
> the boot process.

But only after the PC BIOS did its work.
This trick exploits that some chipsets allow PCI devices to respond to 
the system firmware region (4gb-flashsize), so it's coreboot running 
from the plugin card.

Patrick

[SerialICE] Boots from PCI add-on card on Intel ICHs

[ron minnich]

On Sun, May 20, 2012 at 11:32 PM, Patrick Georgi  wrote:
> This trick exploits that some chipsets allow PCI devices to respond to
> the system firmware region (4gb-flashsize), so it's coreboot running
> from the plugin card.

ah, somehow I missed that, it is very cool.

ron