> ...and Dave, who reported that CXL enumeration was busted in -rc2, says > this patch fixes that. So you can also add: > > Tested-by: Dave Jiang <dave.jiang@xxxxxxxxx> Also seems good for my Broadwell/EDAC system. Boot messages mentioning MMCONFIG are: $ dmesg | grep MMCONFIG [ 12.280360] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0x80000000-0x8fffffff] (base 0x80000000) [ 12.291606] PCI: not using MMCONFIG [ 12.873676] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0x80000000-0x8fffffff] (base 0x80000000) [ 12.893266] PCI: MMCONFIG at [mem 0x80000000-0x8fffffff] reserved in ACPI motherboard resources or EFI [ 12.903601] PCI: MMCONFIG for 0000 [bus00-7f] at [mem 0x80000000-0x87ffffff] (base 0x80000000) (size reduced!) [ 13.385616] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 14.115617] acpi PNP0A03:01: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 17.969639] acpi PNP0A08:02: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 18.298640] acpi PNP0A08:03: fail to add MMCONFIG information, can't access extended configuration space under this bridge The EDAC driver works with this patch applied. Tested-by: Tony Luck <tony.luck@xxxxxxxxx> -Tony
