> Definitely an ambiguity / conflict, but not sure it is a bug when you > look at from the perspective of how would an EFI runtime service use > ECAM/MMCONFIG space? > > Would it be enough to add this clarification in "EFI 2.9 Table 7-6 > Memory Type Usage after ExitBootServices()"? > > s/This memory is not used by the OS./This memory is not used by the OS, > unless ACPI declares it for another purpose./ In the case of the EDAC driver there isn't any ACPI declaration. It just does pci_get_device() to find the devices it needs to use with a lookup based on vendor-id and device-id. and then uses pci_read_config_dword() to read various offsets from config space, some of which are in PCIe extended config space. -Tony
