On 2014-7-17 7:49, H. Peter Anvin wrote: > 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... Yes, I agree with you, thanks for pointing this out. if I remember correctly, the EFI standard was introduced when IA64 came out. >> >> 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. Thanks for the explanation. Tony, if it is ok with you, I will modify the patch and will not select ACPI_LEGACY_TABLES_LOOKUP on IA64, I'm waiting for your final confirmation. Thanks Hanjun -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
