Several changes for timestamp bundle:

Fully defined the structure.
Single copy of it + single timer across all modules, managing it is now the responsibility of KernelState.

add global_critical_region::PrepareToAcquire, which uses Prefetchw on the global crit. We now know we can use Prefetchw on all cpus that have AVX.
add  KeQueryInterruptTime, which is used by some dashboards.

add threading::NanoSleep

src/xenia/kernel/kernel_state.h

@@ -17,6 +17,7 @@
 #include <memory>
 #include <vector>
 
+#include "achievement_manager.h"
 #include "xenia/base/bit_map.h"
 #include "xenia/base/cvar.h"
 #include "xenia/base/mutex.h"
@@ -30,7 +31,6 @@
 #include "xenia/memory.h"
 #include "xenia/vfs/virtual_file_system.h"
 #include "xenia/xbox.h"
-#include "achievement_manager.h"
 
 namespace xe {
 class ByteStream;
@@ -88,6 +88,17 @@ struct TerminateNotification {
   uint32_t priority;
 };
 
+// structure for KeTimeStampBuindle
+// a bit like the timers on KUSER_SHARED on normal win32
+// https://www.geoffchappell.com/studies/windows/km/ntoskrnl/inc/api/ntexapi_x/kuser_shared_data/index.htm
+struct X_TIME_STAMP_BUNDLE {
+  uint64_t interrupt_time;
+  // i assume system_time is in 100 ns intervals like on win32
+  uint64_t system_time;
+  uint32_t tick_count;
+  uint32_t padding;
+};
+
 class KernelState {
  public:
   explicit KernelState(Emulator* emulator);
@@ -234,6 +245,14 @@ class KernelState {
   bool Restore(ByteStream* stream);
 
   uint32_t notification_position_ = 2;
+
+  uint32_t GetKeTimestampBundle();
+
+  XE_NOINLINE
+  XE_COLD
+  uint32_t CreateKeTimestampBundle();
+  void UpdateKeTimestampBundle();
+
  private:
   void LoadKernelModule(object_ref<KernelModule> kernel_module);
 
@@ -271,7 +290,8 @@ class KernelState {
   std::list<std::function<void()>> dispatch_queue_;
 
   BitMap tls_bitmap_;
-
+  uint32_t ke_timestamp_bundle_ptr_ = 0;
+  std::unique_ptr<xe::threading::HighResolutionTimer> timestamp_timer_;
   friend class XObject;
 };