> Thanks! Ah, off-by-one error because e820__mapped_all() expects > "[start, end)" which means is_acpi_reserved() and is_efi_mmio() must > use the same, and I was thinking "[start, end]" like a struct > resource. > > The below should work better. Applied in place of earlier patch. The basic MMCONFIG messages look better: $ dmesg | grep MMCONFIG [ 12.985055] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0x80000000-0x8fffffff] (base 0x80000000) [ 13.078050] PCI: not using MMCONFIG [ 13.666053] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0x80000000-0x8fffffff] (base 0x80000000) [ 13.795049] PCI: MMCONFIG at [mem 0x80000000-0x8fffffff] reserved in ACPI motherboard resources or EFI Full dmesg attached. -Tony
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