On 07/16/2014 04:46 PM, Luck, Tony wrote:
>> + select ACPI_LEGACY_TABLES_LOOKUP if ACPI
>
>> This shouldn't actually be set on IA64, should it? IA64 doesn't have
>> BIOS, either, it has EFI/UEFI, like ARM64...
>
> Which ACPI tables are in the "LEGACY" category affected by this option?
>
That's not what this is about... it is about how you find the root pointer.
On a BIOS system it is found by scanning low memory. On an EFI system
it is found by querying EFI for a specific UUID.
-hpa
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