diff --git a/src/xenia/kernel/smc.h b/src/xenia/kernel/smc.h
index f423f746a..0fc8d6134 100644
--- a/src/xenia/kernel/smc.h
+++ b/src/xenia/kernel/smc.h
@@ -57,6 +57,37 @@ enum LED_STATE : uint8_t {
   ORANGE = 0x88
 };
 
+// https://free60.org/Hardware/Console/SMC_Command_0x01/#query-power-on-type
+enum POWERON_TYPE : uint8_t {
+  POWER_BUTTON = 0x11,
+  EJECT_BUTTON = 0x12,
+  RTC_WAKEUP = 0x15,
+  UNKNOWN_POWERON_1 = 0x16,
+  REMOTE_POWER_BUTTON = 0x20,
+  REMOTE_EJECT_BUTTON = 0x21,
+  REMOTE_X_BUTTON = 0x22,
+  REMOTE_WIN_BUTTON = 0x24,
+  HARD_RESET = 0x30,  // HalReturnToFirmware(1, 2, or 3)
+  RESET_CYCLE = 0x31,
+  UNKNOWN_POWERON_2 = 0x41,
+  KIOSK = 0x51,
+  WIRELESS_CONTROLLER_BUTTON =
+      0x55,  // controller middle button/start button (e.g. Turntable, drums,
+             // guitar, 360 controller)
+  GAME_PORT_1 = 0x56,
+  GAME_PORT_2 = 0x57,
+  EXPANSION_RESUME = 0x5A,
+};
+
+// https://free60.org/Hardware/Console/SMC_Command_0x82/
+enum class STANDBY_TYPE : uint16_t {
+  POWER_OFF = 0x0100,
+  POWER_OFF_RTC = 0x0132,  // verify this
+  HARD_RESET = 0x0430,     // 04 30 ??
+  SOFT_RESET = 0x0431,     // 04 31 ?? reset_cycle
+  CLEAR = 0x0433
+};
+
 // https://free60.org/Hardware/Console/SMC/
 enum X_SMC_CMD : uint8_t {
   POWERON_STATE = 0x1,
@@ -109,6 +140,15 @@ struct X_SMC_DATA {
   union {
     uint8_t smc_data[15];
 
+    // POWERON_STATE
+    struct {
+      uint8_t poweron_state;
+      uint8_t reserved;  // always 00
+      uint8_t unk1;
+      uint8_t unk2;
+      uint8_t unk3;
+    } poweron_state;
+
     // QUERY_TEMP_SENSOR
     struct {
       X_TEMPERATURE_DATA cpu;
@@ -139,11 +179,17 @@ struct X_SMC_DATA {
       REMOTE_CONTROL ir_address;
     } ir_address;
 
-    // QUERY_TILT_STATE
+    // QUERY_TILT_SENSOR
     struct {
       TILT_STATE tilt_state;
     } tilt_state;
 
+    // SET_STANDBY
+    struct {
+      uint16_t standby_state;
+      uint8_t unkn;
+    } set_standby;
+
     // POWER_LED_STATE
     struct {
       POWER_LED_STATE state;
@@ -192,6 +238,7 @@ class SystemManagementController {
   void SetDriveTray(X_SMC_DATA* smc_message, X_SMC_DATA* smc_response);
   void SetFanSpeed(X_SMC_DATA* smc_message, X_SMC_DATA* smc_response);
   void SetIRAddress(X_SMC_DATA* smc_message, X_SMC_DATA* smc_response);
+  void SetStandby(X_SMC_DATA* smc_message, X_SMC_DATA* smc_response);
   void SetPowerLed(X_SMC_DATA* smc_message, X_SMC_DATA* smc_response);
   void SetLedState(X_SMC_DATA* smc_message, X_SMC_DATA* smc_response);
 
diff --git a/src/xenia/kernel/xboxkrnl/xboxkrnl_hal.cc b/src/xenia/kernel/xboxkrnl/xboxkrnl_hal.cc
index 80a331e63..f6a3dd71b 100644
--- a/src/xenia/kernel/xboxkrnl/xboxkrnl_hal.cc
+++ b/src/xenia/kernel/xboxkrnl/xboxkrnl_hal.cc
@@ -17,16 +17,27 @@ namespace xe {
 namespace kernel {
 namespace xboxkrnl {
 
+constexpr std::array<std::string_view, 9> FirmwareReentryMessage = {
+    "hard poweroff",
+    "hard reset (video error)",
+    "hard reset (used for dumpwritedump/frozen processor)",
+    "hard reset",
+    "power off (hard)",
+    "power off (nice)",
+    "Shut off (Lost Settings)",
+    "Shut off (Frozen Console)",
+    "Shut off",
+};
+
 void HalReturnToFirmware_entry(dword_t routine) {
-  // void
-  // IN FIRMWARE_REENTRY  Routine
-
-  // Routine must be 1 'HalRebootRoutine'
-  assert_true(routine == 1);
-
   // TODO(benvank): diediedie much more gracefully
   // Not sure how to blast back up the stack in LLVM without exceptions, though.
-  XELOGE("Game requested shutdown via HalReturnToFirmware");
+  const std::string exitMessage = fmt::format(
+      "Game requested a {} via HalReturnToFirmware",
+      static_cast<size_t>(routine) < FirmwareReentryMessage.size()
+          ? FirmwareReentryMessage[routine]
+          : fmt::format("Reboot (Routine Code: {})", routine.value()));
+  XELOGE(exitMessage);
   exit(0);
 }
 DECLARE_XBOXKRNL_EXPORT2(HalReturnToFirmware, kNone, kStub, kImportant);
diff --git a/src/xenia/xbox.h b/src/xenia/xbox.h
index 6beae4688..d4ff4209e 100644
--- a/src/xenia/xbox.h
+++ b/src/xenia/xbox.h
@@ -370,6 +370,18 @@ enum : XNotificationID {
   kXNotificationMsgrUnknown = 0x0C00000E,
 };
 
+enum FIRMWARE_REENTRY {
+  HalHaltRoutine = 0x0,
+  HalRebootRoutine = 0x1,
+  HalKdRebootRoutine = 0x2,
+  HalFatalErrorRebootRoutine = 0x3,
+  HalResetSMCRoutine = 0x4,
+  HalPowerDownRoutine = 0x5,
+  HalRebootQuiesceRoutine = 0x6,
+  HalForceShutdownRoutine = 0x7,
+  HalPowerCycleQuiesceRoutine = 0x8,
+};
+
 // https://github.com/CodeAsm/ffplay360/blob/master/Common/XTLOnPC.h
 struct X_VIDEO_MODE {
   be<uint32_t> display_width;