How iPXE detect PCI version?

[Gelip]

I know that while PC boot from iPXE ROM this displays PCI version like this:

Code:

iPXE (http://ipxe.org) 00:04.0 C100 PCI2.10 PnP...

This means that PCI version is PCI2.1 right? How iPXE check this?

[robinsmidsrod]

I think you should ask this question on the developer mailing-list. The answer is probably somewhere in the source code, which you can find some documentation for over at http://dox.ipxe.org/.