That's expected. All PCIe endpoints in your case have *non-prefetchable* 64-bit BARs. These can only reside below 4 GB, so EDK2 downgrades them to the 32-bit non-prefetchable aperture. If you had a device with a *prefetchable* 64-bit BAR (e.g. GPU VRAM), it would enumerate as "PMem64" and then you'd see it being allocated to the 64-bit prefetchable aperture. -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#120027): https://edk2.groups.io/g/devel/message/120027 Mute This Topic: https://groups.io/mt/107528139/7686176 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io] -=-=-=-=-=-=-=-=-=-=-=-