PCI without BIOS

I need to run a PCI devices on our specific board based on x86 and without
BIOS. QNX denotes that their RTOS is fully independent from PC BIOS. I found
that QNX has the only PCI resource manager for x86 platform: pci-bios.
pci-bios fully depend on BIOS.!!!? What could be the right way to run PCI
device on x86 without BIOS?

Marius Rumpis