[ipxe-devel] 64 bit bARS support.

[Michael Brown]

On Sunday 26 May 2013 14:08:59 Alex Markuze wrote:
> Thanks for the prompt answer.
> But looking at the download page and your answer it's unclear whether we
> can compile legacy iPXE (not UEFI) in 64 bit mode.
> 
> So the questions is : Can Legacy iPXE work with 64 bit BAR's?

Yes.  You do not need to compile in 64-bit mode to use 64-bit BARs.

Provided that the BIOS assigns an address below 4GB (i.e. within 32-bit 
address space), then a 64-bit BAR can still be used from within a 32-bit 
binary such as the BIOS version of iPXE.

Michael