PDM/Audio: Ignore old AudioSniffer device when loading older saved states.

PDM Audio: Branch -> trunk.

VMM, Devices: Add interface to query the APIC frequency from the APIC device.

fix harmless copy/paste bug

Devices/USB: First part of the rework, move most of the work to dedicated threads to improve performance

VMM, recompiler: Purge deprecated macros.

VMM,DevVGA: Don't resolve RC symbols when HM is enabled (part 1).

PDMCritSectRw: Early morphing stage - untested, ring-3 only.

PDM,PGM,DevEFI,DevACPI,DevPcBios: Added memory setup phase after construction and reset to solve PGM/PDM reset order issue (PDM first, then PGM, only that wasn't possible previously since PDM reset would plant stuff in guest RAM).

DBGF,DBGC,++: PVM -> PUVM. Some refactoring and cleanup as well.

PDMAsyncCompletion: PVM -> PUVM (one instance), internalize internal APIs where possible (not all because of test cases). API docs lives where the implmentation lives, NOT in headers (IPRT is the exception).

PDM,++: Change APIs used by Main from PVM to PUVM.

Add new flag to notify devices during a reset first to make sure there is no I/O pending (see #6434)

Doxygen.

Doxygen.

Doxygen.

Doxygen, comment typos.

Doxygen.

Fixed pszArgs == NULL in pdmtracerids.

PDM: info pdmtracingids.

Set the idTracing members.

NetShaper,E1000: Basic framework and partial implementation for network shaper

s/fTraceing/fTracing/g

build fix.

VMM/PDM: Some simple tracepoint infastructure.

PDM: Initial driver chain transformation code (untested).

PDM.cpp: another one

PDM.cpp: Assign NULL, not false, to pfnAsyncNotify when done.

VMM: don't use generic IPE status codes, use specific ones. Part 1.

VMM: -Wunused-parameter

PDM: Enter the device critical section for PDM callback.

VMM,++: Try fix the async reset, suspend and power-off problems in PDM wrt conflicting VMM requests. Split them into priority requests and normal requests. The priority requests can safely be processed when PDM is doing async state change waits, the normal ones cannot. (The problem I bumped into was a unmap-chunk request from PGM being processed during PDMR3Reset, causing a recursive VMMR3EmtRendezvous deadlock.)

PDM: Warn if devices/drivers take too long to suspend or power off. Also log the total time spent suspending and powering off.

VMM,Devices: Automatically use a per-device lock instead of the giant IOM lock. With exception of the PIC, APIC, IOAPIC and PCI buses which are all using the PDM crit sect, there should be no calls between devices. So, this change should be relatively safe.

PDM: Implemented the NOP critical section.

Main/VMM: Use UVM w/ refcounting - part 1.

PDM.cpp: Instrumented the asynchronous reset, suspend and poweroff notifications.

VMM reorg: Moving the public include files from include/VBox to include/VBox/vmm.

VMM source reorg.