• Add a new MD per-CPU field for Alpha 'pal_id' which is the PAL ID associated with each processor. This ID is inferred from the index of the pcs structure in the hwprb.
• Give Alpha CPUs FreeBSD CPU IDs more like other architectures where the boot processor is always CPU 0 and the other processors are numbered 1 ... N. List active CPUs in the system in cpu_mp_announce() as well.

Silence on: alpha@