Assorted fixes for FreeBSD hosts, VBox compiles and runs again without further patches (tested on 10.1 amd64 )

Various FreeBSD fixes submitted Bernhard Froehlich

Runtime/FreeBSD: Fix build on recent 10-CURRENT (thanks to Garrett Cooper and Bernhard Froehlich)

FreeBSD/MemObjR0: Bug fixes (Thanks to Andriy Gapon and Bernhard Froehlich)

rtr0memobj: Status code adjustments.

IPRT/FreeBSD: Rewrite of R0 memory objects handling, thanks to Andriy Gapon and Bernhard Froehlich

FreeBSD: Certain fixes to run on CURRENT and clean up the support driver character device handling, thanks to Bernhard Froehlich, Jung-uk Kim and Ed Schouten

Use DECLHIDDEN, especially in IPRT.

*: spelling fixes, thanks Timeless!

RTR0MemObj*: Return VERR_NOT_SUPPORTED instead of VERR_NOT_IMPLEMENTED in a bunch of situations where the former is documented.

memobj-r0drv-freebsd.c: Fix low allocs if kmem_alloc_attr is used

*-r0drv-freebsd.c: Little cleanup and don't wire the pages twice during alloc or we will leak memory

FreeBSD: Wiring in a user map requires VM_MAP_WIRE_USER. Fixes guest additions service

memobj-r0drv-freebsd.cpp: Hopefully correct range check now...

memobj-r0drv-freebsd.c: Correct range checks

memobj-r0drv-freebsd.c: Use kmem_alloc_attr if available

RTR0MemObjEnterPhys/rtR0MemObjNativeEnterPhys: Validate the cache policy in the common code. Use uint32_t as parameter type. All native implementations must set the policy member.

iprt: added CachePolicy parameter to ''RTR0MemObjEnterPhys()''

memobj-r0drv-freebsd.c: Major rewrite again. Removed most of the vm_object_t usage and changed the Phys/PhysNC allocators again. Seems to work this time but only tested on FreeBSD 9-CURRENT amd64 so far, so be careful

R0/MemObj/FreeBSD: Various changes - Don't wire allocated pages twice in AllocPage - More work for the physical page allocation stuff Still disabled by default because the host crashes sometimes n weird ways after a VM terminated

R0/MemObj/FreeBSD: Highly experimental changes. Implement PhysNC allocator and share code with contiguous physical memory allocator (Preperations for large pages) and cleanup the code

IPRT/FreeBSD: Fix GetPagePhysAddr for lock objects

Don't pass uAlignment=0 to rtR0MemObjNativeAllocPhys, resolve the alias like is done for the other APIs.

memobj-r0drv-freebsd.c: nit: no else after return.

IPRT/memobj-r0drv-freebsd: Do not use vtophys to get the physical address for virtual userspace addresses. pmap_extract is the correct function

Introducing RTR0MemObjAllocPhysEx

IPRT,VMM,SUPDrv,VBGLR0: Added a parameter to RTR0MemObjLockUser/Kernel that indicates read/write intent so we can correctly lock readonly memory on Windows and OS/2. (Guest property strings, see #4238.)

Runtime/memobj-r0drv-freebsd: rtR0MemObjNativeReserveInMap may remove arbitrary mappings if pvFixed is -1. Spotted by Alexander Kabaev

Runtime/memobj-freebsd: Fix crash during VM temrination on FreeBSD8-CURRENT amd64

RTR0MemObj*: correctly reject unsupported alignment requirements (VERR_NOT_SUPPORTED).

iprt/memobj.h: Added RTR0MemObjProtect, only implemented for darwin.

Runtime/r0drv-freebsd: Change the pag allocation code again. contigmalloc allocates physically contiguous memory which is not neccessary and might become a proble if the host is low on memory. Use vm_page_alloc and pmap_enter to allocate the pages and map them instantly into the kernel map

Runtime/r0drv-freebsd: Disable the active code for allocating pages and use contigmalloc instead. The old code didn't allocated the pages properly during vm_map_wire resulting in page faults when running the VM and panicing the host. Don't know if contigmalloc has some restrictions which huge RAM configs but for now it works ok (was able to start a 64bit OpenSolaris VM on a 32bit FreeBSD host).

HostDrivers,Runtime/r0drv-freebsd: Fix compiling on FreeBSD 8. Thanks to Bernhard Froehlich and Gustau Perez

Runtime/r0drv-freebsd: Fixes for FreeBSD 8.0. Thanks to Ulf Lilleengen

memobj-r0drv-freebsd.c: make the exit point easier to spot.

Runtime/R0/FreeBSD: Fix the rc hack. We can safely return with VERR_NO_MEMORY at this point

memobj-r0drv-freebsd.c: nitpicking...

Runtime/R0/FreeBSD: Fix the host crash during VM termination with debug builds

Runtime/R0/FreeBSD: Implement method to map kernel memory into user space

IPRT: RTR0MemObjMapKernelEx for mapping a portion of a memory object into ring-0. Only implemented on darwin (where I had to switch back to use I/O kit to wire memory instead of vm_map_wire).

rebranding: IPRT files again.

Rebranding: replacing more innotek strings.

physnc fix.

RTR0MemGetAddressR3 & RTR0MemObjLockUser. Linux memobj impl.

Added RTR0MemObjAllocPhysNC. Changed the two APIs taking ring-3 addresses to use RTR3PTR.

Use size_t for the page index. Added API for querying the ring-3 address.

Some untested FreeBSD memory code.

some notes from kernel digging.

Implemented the timer and time apis for freebsd, stubbed the memobj ones.