Hello, The command line parameter pciehp.pciehp_force=1 pciehp.pciehp_debug=1 pcie_ports=native pci=nocrs pci=hpmemsize=256M,realloc pci=noacpi pci=realloc=on pci=nobios There are a couple of endpoints connected to downstream ports on a switch, and the endpoints are not visible during the BIOS (seabios) enumeration, but they are brought out of reset just before kernel starts pci scan. Even though the kernel enumerates the endpoint with proper bdf and is able to read the config space but its not able to properly program the BAR register, the lspci lists as Region 0: Memory at <unassigned> (32-bit, non-prefetchable) [disabled] [size=32M] This is an emulation platform. Any inputs is appreciated Raghu
