replace the VHD/diskpart disk image pipeline with a directory-based vvfat root, we'll see when it breaks, fix /O2, add an all_tests, generalize the fat32 driver into a fat 16+32 driver, change policy on volume drivers, collapse KCPU's fields into a single atomic KE_CPU_STATE state machine, move scheduler ticking to per-CPU LAPIC timers, gate verbose SMP topology logging behind selftest diagnostics and add SMP pool-checkpoint validation around AP admission, add checked intrusive list helpers behind a new KE_DEBUG_LIST_CHECKS flag, add ObInitializeObjectHeader/ObTryReferenceObject, add waitable display clock objects and a SYS_OPEN_DISPLAY_CLOCK syscall for vsync-style waits, refactor kernel input into a per-queue KE_INPUT_CONTEXT with its own key/mouse ring buffers and DPC-driven key repeat, add KeInputQueuePeekEvent/ReadEvent/WaitKey and a SYS_QUERY_GLOBAL_INPUT_STATE syscall, split the kernel pool allocator out of mm_virt, new video files!

code/kernel/io_device.c

@@ -79,9 +79,7 @@ __declspec(dllexport) void IoInitializeDriverObject(DRIVER_OBJECT* driver,
                                                     SYS_STRING_VIEW name) {
     if (!driver) return;
     memset(driver, 0, sizeof(*driver));
-    driver->Header.Type = ObjectTypeDriver;
-    driver->Header.RefCount = 1;
-    driver->Header.Destroy = (void*)0;
+    ObInitializeObjectHeader(&driver->Header, ObjectTypeDriver);
     driver->Name = name;
 }
 
@@ -91,9 +89,9 @@ __declspec(dllexport) KSTATUS IoRegisterDriverObject(DRIVER_OBJECT* driver) {
     if (gDriverObjectCount >= MAX_DRIVER_OBJECTS)
         return NTLSTATUS_NO_MEMORY;
 
-    if (driver->Header.Type != ObjectTypeDriver) {
-        driver->Header.Type = ObjectTypeDriver;
-        driver->Header.RefCount = 1;
+    if (driver->Header.Type != ObjectTypeDriver ||
+        driver->Header.LifetimeState != ObjectAlive) {
+        ObInitializeObjectHeader(&driver->Header, ObjectTypeDriver);
     }
 
     gDriverObjects[gDriverObjectCount++] = driver;