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SubjectRe: [PATCH] x86: introduce max_physical_apicid for bigsmp switching

* Yinghai Lu <yhlu.kernel@gmail.com> wrote:

> one multi-sockets system with 3 or 4 ioapics, when 4 dualcore cpus or
> 2 quadcore cpus installed, need to switch to bigsmp or physflat.
> because cpu apic id is [4,11] instead of [0,7], and we need to check
> max apic id instead of cpu numbers.
>
> also add check for 32 bit when acpi is not compiled in or acpi=off

applied to tip/x86/mpparse, thanks.

Ingo


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