On Fri, Sep 15, 2023 at 02:29:13AM +0000, Salil Mehta wrote: > On x86, during init, if the MADT entry for LAPIC is found to be > online-capable and is enabled as well then possible and present Note that the ACPI spec says enabled + online-capable isn't defined. "The information conveyed by this bit depends on the value of the Enabled bit. If the Enabled bit is set, this bit is reserved and must be zero." So, if x86 is doing something with the enabled && online-capable state (other than ignoring the online-capable) then technically it is doing something that the spec doesn't define - and it's completely fine if aarch64 does something else (maybe treating it strictly as per the spec and ignoring online-capable.) -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!