add ntfs.sys standalone driver target, change default usb vhd layout formatting to ntfs, implement Fat32CreateDir for directory creation support in the fat32 file system driver, add a dedicated HAL serial output endpoint for COM1 writes in hal_serial.c and subscribe serial to HAL text streams, introduce waitable kernel timers with KeTimerCreate, KeTimerSet, and KeTimerCancel alongside spinlock-protected global timer list initialization and scheduler tick tracking, implement SyscallWriteFileAsync system call for asynchronous non-blocking file writes, refactor NetSocketConnect and NetSocketSendTo to use generic SYS_SOCKET_ADDRESS_K structures instead of being hardcoded to IPv4, update gethostbyname and DNS name resolution to support IPv6 parsing via ResolveNameFamily, update tcpserve.exe with -4 and -6 command-line flags to accept and display IPv6 addresses, append size and version headers to all kernel telemetry and statistics structures including SYS_PMM_STATS, SYS_CPU_STATS, and SYS_SCHEDULER_STATS, update winmm timeGetTime to look up high-resolution hardware frequencies via SysGetTickFrequency, integrate 14 native smoke test applications.

code/kernel/ke_smp.c

@@ -8,8 +8,6 @@
 #include <stddef.h>
 #include <string.h>
 #include <intrin.h>
-#pragma intrinsic(_disable)
-#pragma intrinsic(_enable)
 #include <ntlite/status.h>
 #include <kernel/ke_smp.h>
 #include <kernel/ke_cpu.h>
@@ -254,11 +252,10 @@ static KSTATUS KiBuildApTrampoline(void) {
 }
 
 _Noreturn void KiApKernelEntry(KCPU* cpu) {
-    _disable();
+    (void)HalDisableInterrupts();
 
-    if (!cpu) {
-        while (1) __halt();
-    }
+    if (!cpu)
+        HalStopProcessor();
 
     // APs start from the SIPI reset state, so do not assume the firmware/BSP
     // CR4 feature bits are present. The scheduler and context-switch paths
@@ -313,27 +310,26 @@ _Noreturn void KiApKernelEntry(KCPU* cpu) {
                 cpu->Parked = 0;
 
                 // Do not arm the AP's periodic LAPIC timer while it is still in
-                // the raw park loop.  Timer IRQs are scheduler-owned events;
+                // the raw park loop. Timer IRQs are scheduler-owned events;
                 // the AP may take them only after it has a current idle thread.
                 HalTimerConfigureCurrentCpu();
 
                 _InterlockedExchange(&cpu->SchedulerActive, 1);
-                _enable();
+                HalEnableInterrupts();
                 KeStartInitialThread(idle);
             }
         }
 
         // The BSP admits parked APs by storing SchedulerCommand and sending a
-        // wake IPI.  Avoid the classic lost wakeup where the command appears
+        // wake IPI. Avoid the classic lost wakeup where the command appears
         // between the poll and HLT: check once with interrupts disabled, then
         // STI;HLT as a single sleep transition.
-        _disable();
+        uintptr_t interruptFlags = HalDisableInterrupts();
         if (_InterlockedCompareExchange(&cpu->SchedulerCommand, 0, 0) != 0) {
-            _enable();
+            HalRestoreInterrupts(interruptFlags);
             continue;
         }
-        _enable();
-        __halt();
+        HalWaitForInterrupt();
     }
 }
 
@@ -367,7 +363,6 @@ static void KiPrepareCpuRecord(uint32_t cpuIndex, const HAL_CPU_INFO* info) {
     cpu->SchedulerActive = 0;
 }
 
-
 // Implements the ceil Log2 U32 operation.
 static uint32_t KiCeilLog2U32(uint32_t value) {
     if (value <= 1u)
@@ -591,7 +586,7 @@ void KeBuildProcessorTopology(void) {
 
 // Creates ap Stack.
 static KSTATUS KiAllocateApStack(KCPU* cpu) {
-    // AP kernel stacks do not need physically contiguous memory.  Requiring
+    // AP kernel stacks do not need physically contiguous memory. Requiring
     // MmPfnAllocateContiguous(8) made SMP startup depend on a DMA-style run being
     // available, which is fragile on real machines and unrelated to AP startup.
     size_t stackBytes = (size_t)AP_STACK_PAGES * PAGE_SIZE;
@@ -612,7 +607,6 @@ static KSTATUS KiAllocateApStack(KCPU* cpu) {
     return STATUS_SUCCESS;
 }
 
-
 // Implements the ap Stage Name operation.
 static const char* KiApStageName(uint32_t stage) {
     switch (stage) {
@@ -806,9 +800,9 @@ KSTATUS KeAdmitApplicationProcessorsToScheduler(void) {
         _ReadWriteBarrier();
         _InterlockedExchange(&cpu->SchedulerCommand, 1);
 
-        // Parked APs sleep with HLT and have no LAPIC timer armed yet.  The
+        // Parked APs sleep with HLT and have no LAPIC timer armed yet. The
         // command store alone is not sufficient; send a fixed-vector IPI only
-        // to wake the parked loop.  ReschedulePending is intentionally left
+        // to wake the parked loop. ReschedulePending is intentionally left
         // clear, so the interrupt exit path will not try to schedule before
         // the AP has installed its idle thread.
         HalApicSendRescheduleIpi(cpu->LapicId);