tree 398d86b96531e574c4710ea1538806b7e0ae0fef
parent c3ff01672a23fabb40d4b80ff25a845582fd07c2
author Yinghai Lu <yhlu.kernel@gmail.com> 1212974962 -0700
committer Ingo Molnar <mingo@elte.hu> 1213090329 +0200

x86: introduce max_physical_apicid for bigsmp switching

a multi-socket test-system with 3 or 4 ioapics, when 4 dualcore cpus or
2 quadcore cpus installed, needs to switch to bigsmp or physflat.

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.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>