For newer SMP and modern cpus, just doing a full fpu context switch
is simpler and cheaper than dealing with the complexity of lazy fpu
context switch logic.
Plus this old logic was broken in the recent SMP-ification of the x86
code base. A functional version of this would be far more complex.
Rearrange some of the cpu initialization code to be runnable on each cpu
as they come up. Complete the 64bit bootstrap mechanism and call into C
code.
Makes it as far as trying to reschedule via an IPI. Need to implement
local apic based IPI mechanism.
-Large cleanup of both the 32 and 64bit mmu code. Still the same general
flow but tighten up usage of mixing physical addresses with virtual
addresses.
-Remove the PAE code path from 32bit mmu, which was unused.
Mostly deduplicating x86-32 and x86-64 code since virtually all of it
can be shared.
Fixed up some cpuid usage which was not properly marking registers as
clobber.
Almost nothing changes here except moving braces to the same line as the
function declaration. Everything else is largely whitespace changes and
a few dangling files with tab indents.
See scripts/codestyle
