On Wed, 9 Apr 2008, Hannes Reinecke wrote:
> Some BIOSes will crash if read at the wrong areas. So instead
> of reading each word we should rather check for the ROM extension
> magic or skip the entire 512 byte block if no ROM magic has been
> found.
> If we have one we extract the size of the ROM area and skip the
> entire ROM area if it's not an iBFT table. More efficient and
> less error-prone.
> Signed-off-by: Hannes Reinecke <[EMAIL PROTECTED]>


The iBFT does not have to be contained within a ROM area.  I'm fairly sure 
that this change would break iSCSI-booting via either gPXE or via emBoot's 
products, since both will construct the iBFT in base memory (below 640kB).


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