replace ad hoc driver loading with a proper driver manager, new DDK, new PnP manager with device matching, asynchronous startup, resource ownership and removal, add shared PCI capability helpers, replace typed, rigid services with a proper service manager, implement proper system shutdown and restart, shutting down unloads drivers and shuts down services, add simple power button, remove heavyweight boot self-tests and SMP stress runs, add monotonic timestamps to kernel debug output, fruitless USB and PS/2 fixes, make test builds opt in.

code/user/apps/shell_posix/shell_posix.c

@@ -11,6 +11,7 @@
 #include <spawn.h>
 #include <sys/wait.h>
 #include <ntlite/posix_extensions.h>
+#include <ntlite/syscall.h>
 
 #define MAX_CMD 256
 
@@ -80,6 +81,8 @@ static void cmd_help() {
           "  del <file>         - Delete a file\n"
           "  write <file> <txt> - Create a file with text\n"
           "  clear              - Clear the screen\n"
+          "  shutdown          - Request system shutdown\n"
+          "  reboot            - Request system restart\n"
           "  exit               - Close the shell\n");
 }
 
@@ -196,6 +199,13 @@ static void cmd_type(const char* filename) {
 // Runs command.
 static bool runCommand(const char* cmd) {
     if (!cmd || *cmd == '\0') return false;
+    if (strcmp(cmd, "shutdown") == 0 || strcmp(cmd, "reboot") == 0) {
+        uint32_t action = strcmp(cmd, "reboot") == 0
+            ? SYS_POWER_ACTION_RESTART : SYS_POWER_ACTION_SHUTDOWN;
+        KSTATUS st = SysRequestSystemPower(action);
+        if (!KSUCCESS(st)) print("power: request failed\n");
+        return false;
+    }
     if (strcmp(cmd, "exit") == 0) return true;
     if (strcmp(cmd, "help") == 0) { cmd_help(); return false; }
     if (strcmp(cmd, "clear") == 0) { clearscreen(); return false; }