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34b18e9da2
Removes the generic processor broadcast function call. By now, that call was used for cross processor TLB maintance operations only. When core/kernel gets its memory mapped on demand, and unmapped again, the previous cross processor flush routine doesn't work anymore, because of a hen-egg problem. The previous cross processor broadcast is realized using a thread constructed by core running on top of each processor core. When constructing threads in core, a dataspace for its thread context is constructed. Each constructed RAM dataspace gets attached, zeroed out, and detached again. The detach routine requires a TLB flush operation executed on each processor core. Instead of executing a thread on each processor core, now a thread waiting for a global TLB flush is removed from the scheduler queue, and gets attached to a TLB flush queue of each processor. The processor local queue gets checked whenever the kernel is entered. The last processor, which executed the TLB flush, re-attaches the blocked thread to its scheduler queue again. To ease uo the above described mechanism, a platform thread is now directly associated with a platform pd object, instead of just associate it with the kernel pd's id. Ref #723