VMM,REM: CPUID revamp - almost there now.
scm automatic cleanups.
Fixes for canonical address in MSRs.
Implemented MSR 0x00000035 on i7, it reports threads and core counts on intel.
CPUM,VMM: More work related to bus, cpu and tsc frequency info. Should cover older core and p6 as well as p4 now.
CPUM,DevEFI: Bus vs cpu clock ratio fixes for more recent CPUs. Older CPUs (<=Core2) still need some more work.
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