[vioscsi] Implement cold and hot tracing paths

[benyamin-codez]

1. Introduced three (3) compile-time environment variables:
   a) RUN_WPP_ALL_PATHS
   Compile WPP for the hot path too.
   Is the inverse of RUN_COLD_PATH_ONLY, which is the default behaviour.
   b) FORCE_RUN_UNCHECKED
   Run without EVENT_TRACING or DBG. Defines RUN_UNCHECKED.
   c) FORCE_RUN_DEBUG
   Run with DBG rather than EVENT_TRACING. Undefines EVENT_TRACING.

2. WPP scans for WPP config on a per file basis. Sections of the config file cannot be excluded and conditional macros will be ignored. To solve this, we establish two new files with WPP configuration data. One holds exclusively cold path data (wpp_cold_path.h) and the other holds data for all paths (wpp_all_paths.h). Which file to use is set conditionally per the vioscsi.vcxproj project file configuration.

3. The hot path DBG and WPP macro variants are a clone of the cold path macros, but with a "_HP" suffix. The exception to this is RhelDbgPrint() which we extend as RhelDbgPrintHotPath().

4. Encapsulated exisitng cold and and hot trace messages in compile-time conditional macros and in same manner drops *.tmh includes when necessary. The general format for the cold path is #if !defined(RUN_UNCHECKED) and for the hot path #if !defined(RUN_UNCHECKED) || !defined(RUN_COLD_PATH_ONLY).

5. Minor refactoring of:
   a) helper.c - GetScsiConfig()
   b) helper.c - SetGuestFeatures()

6. Major refactoring of:
   a) trace.h
   b) vioscsi.c - VioScsiHwInitialize() - corrects order of init for benefit of clean trace.

7. Major new instrumentation of:
   a) helper.c - InitVirtIODevice()

8. Reconfigured the following for INLINE function tracing:
   a) vioscsi.c - HandleResponse()
   b) vioscsi.c - PreProcessRequest()
   c) vioscsi.c - PostProcessRequest()
   d) vioscsi.c - DispatchQueue()

9. Mnemonic rename of VioScsiPassiveInitializeRoutine() to VioScsiPassiveDpcInitializeRoutine().

10. Correct struct virtio_bar for bMemorySpace rather than bPortSpace (vioscsi.h and virtio_pci.c).

11. Add missing structs for PCI Capabilities (vioscsi.h).

12. Included stddef.h for offsetof function.

Hard to split this one up further methinks.
I do have a fair bit of additional instrumentation to merge after this one.

[benyamin-codez]

Note somewhat cheeky inclusion to raise the NTDDI_VERSION for Win11 builds to NTDDI_WIN10_CO, i.e. Cobalt / 21H2.

kvm-guest-drivers-windows/vioscsi/vioscsi.vcxproj

Lines 141 to 148 in 9b47ab2

	<ItemDefinitionGroup Condition="'$(Configuration)'=='Win11 Release'">
	<ClCompile>
	<PreprocessorDefinitions Condition="'$(DisableTracing)'=='true'">%(PreprocessorDefinitions);RUN_UNCHECKED=1</PreprocessorDefinitions>
	<PreprocessorDefinitions Condition="'$(LimitPathsWPP)'=='WPPColdPathOnly'">%(PreprocessorDefinitions);RUN_COLD_PATH_ONLY=1</PreprocessorDefinitions>
	<PreprocessorDefinitions Condition="'$(UseDebugTracing)'!='true'">%(PreprocessorDefinitions);EVENT_TRACING=1</PreprocessorDefinitions>
	<PreprocessorDefinitions>%(PreprocessorDefinitions);NTDDI_VERSION=NTDDI_WIN10_CO</PreprocessorDefinitions>
	</ClCompile>
	</ItemDefinitionGroup>

[benyamin-codez]

Note somewhat cheeky inclusion to raise the NTDDI_VERSION for Win11 builds to NTDDI_WIN10_CO, i.e. Cobalt / 21H2.

Let me know if you need me to split that off and return to NTDDI_WINTHRESHOLD / NTDDI_THRESHOLD / NTDDI_WIN10 / 0x0A000000, i.e. ABRACADABRA_THRESHOLD, Windows build 10.0.10240, Version 1507, Threshold 1.

Does this need to be done by a different means anyway, e.g. via *.rc or *.ver files?