✧✦Catherine✦✧remember i bought a cheap Chinese motherboard with a Xeon included in the price?
i just ran lspci on it.
look at it. what is even going on
biblically accurate PCI bus
full text if you're curious https://paste.debian.net/hidden/a5c1fead
equinox@whitequark this is sadly normal, everything on bus ff: is Intel having engorged body parts for unnecessary PCI devices 
(To be fair, "look good" is not a criteria for PCI bus/interface design)
@equinox pretty sure it's a debug interface that's not meant to be exposed on motherboards shipped to customers
Andrew Zonenberg@whitequark @equinox this is one of my recent xeon workstations https://paste.debian.net/hidden/2b8d5ed8
doesnt look all that different?
@whitequark @equinox there's almost certainly a ton of fun registers for memory training etc in there if you know what to look for
AlexB@azonenberg @whitequark @equinox it's pretty progressive actually, instead of copy pasting a magic base address from (hopefully) a manual (or figure out where the BIOS has put it), you get normal pci id-based enumeration and mmio to a BAR (or config space)
@azonenberg @whitequark @equinox of course, some of those are sometimes documented like, "this looks like PCI for cosmetic reasons. If you actually try to map the BAR somewhere else you crash the machine". Then the BIOS of course hides the device entirely as a workaround