This patch is against 2.6.16-12

This patch implements the i386 side of a patch posted back in
September by Andi Kleen (originally from Stuart Hayes).  Since
phys_cpu_present_map is indexed by APIC ID we need to initialize
it with the APIC ID of the boot processor rather than 0.  The
upstream kernel has the fix for the x86_64 side but not for the
i386 side.  This patch is needed in order to boot the 32-bit kernel
on systems where the boot processor is not APIC ID 0.

Similarly, I fixed the definition of hard_smp_processor_id for
the uniprocessor case.  Since this is supposed to return an APIC
ID, it should not just default to zero when CONFIG_SMP is off.
In order to do this, I had to move the hard_smp_processor_id()
macro into the arch-specific include file.  Since I don't have
access to all of the affected archs, it would be nice to have
a few more eyes look at that part.

This fix allowed me to boot both the 32-bit UP and SMP kernels on a
16-way x86_64 system.

--jim