a74bb29ada
Introduce a new define to take int account the xAPIC ID limit, for systems where x2APIC is not available/reliable. Also change some of the usages of the APIC ID to use an unsigned int (which is the correct storage type to deal with x2APIC IDs as found in x2APIC MADT entries). This allows booting FreeBSD on a box with 256 CPUs and APIC IDs up to 295: FreeBSD/SMP: Multiprocessor System Detected: 256 CPUs FreeBSD/SMP: 1 package(s) x 64 core(s) x 4 hardware threads Package HW ID = 0 Core HW ID = 0 CPU0 (BSP): APIC ID: 0 CPU1 (AP/HT): APIC ID: 1 CPU2 (AP/HT): APIC ID: 2 CPU3 (AP/HT): APIC ID: 3 [...] Core HW ID = 73 CPU252 (AP): APIC ID: 292 CPU253 (AP/HT): APIC ID: 293 CPU254 (AP/HT): APIC ID: 294 CPU255 (AP/HT): APIC ID: 295 Submitted by: kib (previous version) Relnotes: yes MFC after: 1 month Reviewed by: kib Differential revision: https://reviews.freebsd.org/D11913
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