Android 215

A few small fixes

CMakeModules/FindSimpleIni.cmake

@@ -2,18 +2,20 @@
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-find_path(SimpleIni_INCLUDE_DIR SimpleIni.h)
-
 include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(SimpleIni
-    REQUIRED_VARS SimpleIni_INCLUDE_DIR
-)
 
-if (SimpleIni_FOUND AND NOT TARGET SimpleIni::SimpleIni)
-    add_library(SimpleIni::SimpleIni INTERFACE IMPORTED)
-    set_target_properties(SimpleIni::SimpleIni PROPERTIES
-        INTERFACE_INCLUDE_DIRECTORIES "${SimpleIni_INCLUDE_DIR}"
+find_package(SimpleIni QUIET CONFIG)
+if (SimpleIni_CONSIDERED_CONFIGS)
+    find_package_handle_standard_args(SimpleIni CONFIG_MODE)
+else()
+    find_package(PkgConfig QUIET)
+    pkg_search_module(SIMPLEINI QUIET IMPORTED_TARGET simpleini)
+    find_package_handle_standard_args(SimpleIni
+        REQUIRED_VARS SIMPLEINI_INCLUDEDIR
+        VERSION_VAR SIMPLEINI_VERSION
     )
 endif()
 
-mark_as_advanced(SimpleIni_INCLUDE_DIR)
+if (SimpleIni_FOUND AND NOT TARGET SimpleIni::SimpleIni)
+    add_library(SimpleIni::SimpleIni ALIAS PkgConfig::SIMPLEINI)
+endif()

README.md

@@ -1,3 +1,14 @@
+| Pull Request | Commit | Title | Author | Merged? |
+|----|----|----|----|----|
+| [12749](https://github.com/yuzu-emu/yuzu-android//pull/12749) | [`e3171486d`](https://github.com/yuzu-emu/yuzu-android//pull/12749/files) | general: workarounds for SMMU syncing issues | [liamwhite](https://github.com/liamwhite/) | Yes |
+| [12760](https://github.com/yuzu-emu/yuzu-android//pull/12760) | [`2c33ba278`](https://github.com/yuzu-emu/yuzu-android//pull/12760/files) | am: rewrite for multiprocess support | [liamwhite](https://github.com/liamwhite/) | Yes |
+| [12802](https://github.com/yuzu-emu/yuzu-android//pull/12802) | [`c5e88c654`](https://github.com/yuzu-emu/yuzu-android//pull/12802/files) | service: mii: Migrate service to new interface | [german77](https://github.com/german77/) | Yes |
+
+
+End of merge log. You can find the original README.md below the break.
+
+-----
+
 <!--
 SPDX-FileCopyrightText: 2018 yuzu Emulator Project
 SPDX-License-Identifier: GPL-2.0-or-later

externals/CMakeLists.txt

@@ -178,6 +178,9 @@ if (NOT TARGET stb::headers)
     add_library(stb::headers ALIAS stb)
 endif()
 
+add_library(tz tz/tz/tz.cpp)
+target_include_directories(tz PUBLIC ./tz)
+
 add_library(bc_decoder bc_decoder/bc_decoder.cpp)
 target_include_directories(bc_decoder PUBLIC ./bc_decoder)
 

externals/nx_tzdb/CMakeLists.txt

@@ -32,7 +32,7 @@ set(NX_TZDB_ARCHIVE "${CMAKE_CURRENT_BINARY_DIR}/${NX_TZDB_VERSION}.zip")
 
 set(NX_TZDB_ROMFS_DIR "${CMAKE_CURRENT_BINARY_DIR}/nx_tzdb")
 
-if ((NOT CAN_BUILD_NX_TZDB OR YUZU_DOWNLOAD_TIME_ZONE_DATA) AND NOT EXISTS ${NX_TZDB_ARCHIVE})
+if ((NOT CAN_BUILD_NX_TZDB OR YUZU_DOWNLOAD_TIME_ZONE_DATA) AND NOT EXISTS ${NX_TZDB_ROMFS_DIR})
     set(NX_TZDB_DOWNLOAD_URL "https://github.com/lat9nq/tzdb_to_nx/releases/download/${NX_TZDB_VERSION}/${NX_TZDB_VERSION}.zip")
 
     message(STATUS "Downloading time zone data from ${NX_TZDB_DOWNLOAD_URL}...")

externals/nx_tzdb/NxTzdbCreateHeader.cmake

@@ -11,6 +11,10 @@ execute_process(
     WORKING_DIRECTORY ${ZONE_PATH}
     OUTPUT_VARIABLE FILE_LIST)
 
+if (NOT FILE_LIST)
+    message(FATAL_ERROR "No timezone files found in directory ${ZONE_PATH}, did the download fail?")
+endif()
+
 set(DIRECTORY_NAME ${HEADER_NAME})
 
 set(FILE_DATA "")

externals/tz/tz/tz.h

@@ -0,0 +1,81 @@
+// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
+// SPDX-FileCopyrightText: 1996 Arthur David Olson
+// SPDX-License-Identifier: BSD-2-Clause
+
+#pragma once
+
+#include <cstdint>
+#include <limits>
+#include <span>
+#include <array>
+#include <time.h>
+
+namespace Tz {
+using u8 = uint8_t;
+using s8 = int8_t;
+using u16 = uint16_t;
+using s16 = int16_t;
+using u32 = uint32_t;
+using s32 = int32_t;
+using u64 = uint64_t;
+using s64 = int64_t;
+
+constexpr size_t TZ_MAX_TIMES = 1000;
+constexpr size_t TZ_MAX_TYPES = 128;
+constexpr size_t TZ_MAX_CHARS = 50;
+constexpr size_t MY_TZNAME_MAX = 255;
+constexpr size_t TZNAME_MAXIMUM = 255;
+constexpr size_t TZ_MAX_LEAPS = 50;
+constexpr s64 TIME_T_MAX = std::numeric_limits<s64>::max();
+constexpr s64 TIME_T_MIN = std::numeric_limits<s64>::min();
+constexpr size_t CHARS_EXTRA = 3;
+constexpr size_t MAX_ZONE_CHARS = std::max(TZ_MAX_CHARS + CHARS_EXTRA, sizeof("UTC"));
+constexpr size_t MAX_TZNAME_CHARS = 2 * (MY_TZNAME_MAX + 1);
+
+struct ttinfo {
+    s32 tt_utoff;
+    bool tt_isdst;
+    s32 tt_desigidx;
+    bool tt_ttisstd;
+    bool tt_ttisut;
+};
+static_assert(sizeof(ttinfo) == 0x10, "ttinfo has the wrong size!");
+
+struct Rule {
+    s32 timecnt;
+    s32 typecnt;
+    s32 charcnt;
+    bool goback;
+    bool goahead;
+    std::array <u8, 0x2> padding0;
+    std::array<s64, TZ_MAX_TIMES> ats;
+    std::array<u8, TZ_MAX_TIMES> types;
+    std::array<ttinfo, TZ_MAX_TYPES> ttis;
+    std::array<char, std::max(MAX_ZONE_CHARS, MAX_TZNAME_CHARS)> chars;
+    s32 defaulttype;
+    std::array <u8, 0x12C4> padding1;
+};
+static_assert(sizeof(Rule) == 0x4000, "Rule has the wrong size!");
+
+struct CalendarTimeInternal {
+    s32 tm_sec;
+    s32 tm_min;
+    s32 tm_hour;
+    s32 tm_mday;
+    s32 tm_mon;
+    s32 tm_year;
+    s32 tm_wday;
+    s32 tm_yday;
+    s32 tm_isdst;
+    std::array<char, 16> tm_zone;
+    s32 tm_utoff;
+    s32 time_index;
+};
+static_assert(sizeof(CalendarTimeInternal) == 0x3C, "CalendarTimeInternal has the wrong size!");
+
+s32 ParseTimeZoneBinary(Rule& out_rule, std::span<const u8> binary);
+
+bool localtime_rz(CalendarTimeInternal* tmp, Rule* sp, time_t* timep);
+u32 mktime_tzname(time_t* out_time, Rule* sp, CalendarTimeInternal* tmp);
+
+} // namespace Tz

src/android/app/src/main/java/org/yuzu/yuzu_emu/NativeLibrary.kt

@@ -303,6 +303,11 @@ object NativeLibrary {
      */
     external fun getCpuBackend(): String
 
+    /**
+     * Returns the current GPU Driver.
+     */
+    external fun getGpuDriver(): String
+
     external fun applySettings()
 
     external fun logSettings()
@@ -614,6 +619,11 @@ object NativeLibrary {
      */
     external fun clearFilesystemProvider()
 
+    /**
+     * Checks if all necessary keys are present for decryption
+     */
+    external fun areKeysPresent(): Boolean
+
     /**
      * Button type for use in onTouchEvent
      */

src/android/app/src/main/java/org/yuzu/yuzu_emu/activities/EmulationActivity.kt

@@ -193,6 +193,10 @@ class EmulationActivity : AppCompatActivity(), SensorEventListener {
             return super.dispatchKeyEvent(event)
         }
 
+        if (emulationViewModel.drawerOpen.value) {
+            return super.dispatchKeyEvent(event)
+        }
+
         return InputHandler.dispatchKeyEvent(event)
     }
 
@@ -203,6 +207,10 @@ class EmulationActivity : AppCompatActivity(), SensorEventListener {
             return super.dispatchGenericMotionEvent(event)
         }
 
+        if (emulationViewModel.drawerOpen.value) {
+            return super.dispatchGenericMotionEvent(event)
+        }
+
         // Don't attempt to do anything if we are disconnecting a device.
         if (event.actionMasked == MotionEvent.ACTION_CANCEL) {
             return true

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/AbstractDiffAdapter.kt

@@ -14,15 +14,20 @@ import androidx.recyclerview.widget.RecyclerView
  * Generic adapter that implements an [AsyncDifferConfig] and covers some of the basic boilerplate
  * code used in every [RecyclerView].
  * Type assigned to [Model] must inherit from [Object] in order to be compared properly.
+ * @param exact Decides whether each item will be compared by reference or by their contents
  */
-abstract class AbstractDiffAdapter<Model : Any, Holder : AbstractViewHolder<Model>> :
-    ListAdapter<Model, Holder>(AsyncDifferConfig.Builder(DiffCallback<Model>()).build()) {
+abstract class AbstractDiffAdapter<Model : Any, Holder : AbstractViewHolder<Model>>(
+    exact: Boolean = true
+) : ListAdapter<Model, Holder>(AsyncDifferConfig.Builder(DiffCallback<Model>(exact)).build()) {
     override fun onBindViewHolder(holder: Holder, position: Int) =
         holder.bind(currentList[position])
 
-    private class DiffCallback<Model> : DiffUtil.ItemCallback<Model>() {
+    private class DiffCallback<Model>(val exact: Boolean) : DiffUtil.ItemCallback<Model>() {
         override fun areItemsTheSame(oldItem: Model & Any, newItem: Model & Any): Boolean {
-            return oldItem === newItem
+            if (exact) {
+                return oldItem === newItem
+            }
+            return oldItem == newItem
         }
 
         @SuppressLint("DiffUtilEquals")

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/GameAdapter.kt

@@ -30,7 +30,7 @@ import org.yuzu.yuzu_emu.utils.GameIconUtils
 import org.yuzu.yuzu_emu.viewholder.AbstractViewHolder
 
 class GameAdapter(private val activity: AppCompatActivity) :
-    AbstractDiffAdapter<Game, GameAdapter.GameViewHolder>() {
+    AbstractDiffAdapter<Game, GameAdapter.GameViewHolder>(exact = false) {
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): GameViewHolder {
         CardGameBinding.inflate(LayoutInflater.from(parent.context), parent, false)
             .also { return GameViewHolder(it) }

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/AboutFragment.kt

@@ -77,7 +77,7 @@ class AboutFragment : Fragment() {
         }
 
         binding.textVersionName.text = BuildConfig.VERSION_NAME
-        binding.textVersionName.setOnClickListener {
+        binding.buttonVersionName.setOnClickListener {
             val clipBoard =
                 requireContext().getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
             val clip = ClipData.newPlainText(getString(R.string.build), BuildConfig.GIT_HASH)

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/EmulationFragment.kt

@@ -141,7 +141,9 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
 
         // So this fragment doesn't restart on configuration changes; i.e. rotation.
         retainInstance = true
-        emulationState = EmulationState(game.path)
+        emulationState = EmulationState(game.path) {
+            return@EmulationState driverViewModel.isInteractionAllowed.value
+        }
     }
 
     /**
@@ -183,10 +185,13 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
 
             override fun onDrawerOpened(drawerView: View) {
                 binding.drawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED)
+                binding.inGameMenu.requestFocus()
+                emulationViewModel.setDrawerOpen(true)
             }
 
             override fun onDrawerClosed(drawerView: View) {
                 binding.drawerLayout.setDrawerLockMode(IntSetting.LOCK_DRAWER.getInt())
+                emulationViewModel.setDrawerOpen(false)
             }
 
             override fun onDrawerStateChanged(newState: Int) {
@@ -238,6 +243,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
                             requireContext().theme
                         )
                     }
+                    binding.inGameMenu.requestFocus()
                     true
                 }
 
@@ -246,6 +252,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
                         null,
                         Settings.MenuTag.SECTION_ROOT
                     )
+                    binding.inGameMenu.requestFocus()
                     binding.root.findNavController().navigate(action)
                     true
                 }
@@ -255,6 +262,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
                         args.game,
                         Settings.MenuTag.SECTION_ROOT
                     )
+                    binding.inGameMenu.requestFocus()
                     binding.root.findNavController().navigate(action)
                     true
                 }
@@ -286,15 +294,17 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
                             )
                         }
                     }
+                    binding.inGameMenu.requestFocus()
                     NativeConfig.saveGlobalConfig()
                     true
                 }
 
                 R.id.menu_exit -> {
                     emulationState.stop()
+                    NativeConfig.reloadGlobalConfig()
                     emulationViewModel.setIsEmulationStopping(true)
                     binding.drawerLayout.close()
-                    binding.drawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED)
+                    binding.inGameMenu.requestFocus()
                     true
                 }
 
@@ -311,12 +321,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
                     if (!NativeLibrary.isRunning()) {
                         return
                     }
-
-                    if (binding.drawerLayout.isOpen) {
-                        binding.drawerLayout.close()
-                    } else {
-                        binding.drawerLayout.open()
-                    }
+                    emulationViewModel.setDrawerOpen(!binding.drawerLayout.isOpen)
                 }
             }
         )
@@ -370,6 +375,15 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
                     }
                 }
             }
+            launch {
+                repeatOnLifecycle(Lifecycle.State.RESUMED) {
+                    driverViewModel.isInteractionAllowed.collect {
+                        if (it) {
+                            startEmulation()
+                        }
+                    }
+                }
+            }
             launch {
                 repeatOnLifecycle(Lifecycle.State.CREATED) {
                     emulationViewModel.emulationStarted.collectLatest {
@@ -399,10 +413,13 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
                 }
             }
             launch {
-                repeatOnLifecycle(Lifecycle.State.RESUMED) {
-                    driverViewModel.isInteractionAllowed.collect {
+                repeatOnLifecycle(Lifecycle.State.CREATED) {
+                    emulationViewModel.drawerOpen.collect {
                         if (it) {
-                            onEmulationStart()
+                            binding.drawerLayout.open()
+                            binding.inGameMenu.requestFocus()
+                        } else {
+                            binding.drawerLayout.close()
                         }
                     }
                 }
@@ -410,7 +427,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
         }
     }
 
-    private fun onEmulationStart() {
+    private fun startEmulation() {
         if (!NativeLibrary.isRunning() && !NativeLibrary.isPaused()) {
             if (!DirectoryInitialization.areDirectoriesReady) {
                 DirectoryInitialization.start()
@@ -485,12 +502,15 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
             val FRAMETIME = 2
             val SPEED = 3
             perfStatsUpdater = {
-                if (emulationViewModel.emulationStarted.value) {
+                if (emulationViewModel.emulationStarted.value &&
+                    !emulationViewModel.isEmulationStopping.value
+                ) {
                     val perfStats = NativeLibrary.getPerfStats()
                     val cpuBackend = NativeLibrary.getCpuBackend()
+                    val gpuDriver = NativeLibrary.getGpuDriver()
                     if (_binding != null) {
                         binding.showFpsText.text =
-                            String.format("FPS: %.1f\n%s", perfStats[FPS], cpuBackend)
+                            String.format("FPS: %.1f\n%s/%s", perfStats[FPS], cpuBackend, gpuDriver)
                     }
                     perfStatsUpdateHandler.postDelayed(perfStatsUpdater!!, 800)
                 }
@@ -807,7 +827,10 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
         }
     }
 
-    private class EmulationState(private val gamePath: String) {
+    private class EmulationState(
+        private val gamePath: String,
+        private val emulationCanStart: () -> Boolean
+    ) {
         private var state: State
         private var surface: Surface? = null
 
@@ -901,6 +924,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
                     State.PAUSED -> Log.warning(
                         "[EmulationFragment] Surface cleared while emulation paused."
                     )
+
                     else -> Log.warning(
                         "[EmulationFragment] Surface cleared while emulation stopped."
                     )
@@ -910,6 +934,10 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
 
         private fun runWithValidSurface() {
             NativeLibrary.surfaceChanged(surface)
+            if (!emulationCanStart.invoke()) {
+                return
+            }
+
             when (state) {
                 State.STOPPED -> {
                     val emulationThread = Thread({

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/HomeSettingsFragment.kt

@@ -153,7 +153,13 @@ class HomeSettingsFragment : Fragment() {
                             cancellable = true
                         ) { progressCallback, _ ->
                             val result = NativeLibrary.verifyInstalledContents(progressCallback)
-                            return@newInstance if (result.isEmpty()) {
+                            return@newInstance if (progressCallback.invoke(100, 100)) {
+                                // Invoke the progress callback to check if the process was cancelled
+                                MessageDialogFragment.newInstance(
+                                    titleId = R.string.verify_no_result,
+                                    descriptionId = R.string.verify_no_result_description
+                                )
+                            } else if (result.isEmpty()) {
                                 MessageDialogFragment.newInstance(
                                     titleId = R.string.verify_success,
                                     descriptionId = R.string.operation_completed_successfully

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/MessageDialogFragment.kt

@@ -26,9 +26,15 @@ class MessageDialogFragment : DialogFragment() {
         val descriptionId = requireArguments().getInt(DESCRIPTION_ID)
         val descriptionString = requireArguments().getString(DESCRIPTION_STRING)!!
         val helpLinkId = requireArguments().getInt(HELP_LINK)
+        val dismissible = requireArguments().getBoolean(DISMISSIBLE)
+        val clearPositiveAction = requireArguments().getBoolean(CLEAR_POSITIVE_ACTION)
 
         val builder = MaterialAlertDialogBuilder(requireContext())
 
+        if (clearPositiveAction) {
+            messageDialogViewModel.positiveAction = null
+        }
+
         if (messageDialogViewModel.positiveAction == null) {
             builder.setPositiveButton(R.string.close, null)
         } else {
@@ -51,6 +57,8 @@ class MessageDialogFragment : DialogFragment() {
             }
         }
 
+        isCancelable = dismissible
+
         return builder.show()
     }
 
@@ -67,6 +75,8 @@ class MessageDialogFragment : DialogFragment() {
         private const val DESCRIPTION_ID = "DescriptionId"
         private const val DESCRIPTION_STRING = "DescriptionString"
         private const val HELP_LINK = "Link"
+        private const val DISMISSIBLE = "Dismissible"
+        private const val CLEAR_POSITIVE_ACTION = "ClearPositiveAction"
 
         fun newInstance(
             activity: FragmentActivity? = null,
@@ -75,22 +85,28 @@ class MessageDialogFragment : DialogFragment() {
             descriptionId: Int = 0,
             descriptionString: String = "",
             helpLinkId: Int = 0,
+            dismissible: Boolean = true,
             positiveAction: (() -> Unit)? = null
         ): MessageDialogFragment {
-            val dialog = MessageDialogFragment()
-            val bundle = Bundle()
-            bundle.apply {
-                putInt(TITLE_ID, titleId)
-                putString(TITLE_STRING, titleString)
-                putInt(DESCRIPTION_ID, descriptionId)
-                putString(DESCRIPTION_STRING, descriptionString)
-                putInt(HELP_LINK, helpLinkId)
-            }
+            var clearPositiveAction = false
             if (activity != null) {
                 ViewModelProvider(activity)[MessageDialogViewModel::class.java].apply {
                     clear()
                     this.positiveAction = positiveAction
                 }
+            } else {
+                clearPositiveAction = true
+            }
+
+            val dialog = MessageDialogFragment()
+            val bundle = Bundle().apply {
+                putInt(TITLE_ID, titleId)
+                putString(TITLE_STRING, titleString)
+                putInt(DESCRIPTION_ID, descriptionId)
+                putString(DESCRIPTION_STRING, descriptionString)
+                putInt(HELP_LINK, helpLinkId)
+                putBoolean(DISMISSIBLE, dismissible)
+                putBoolean(CLEAR_POSITIVE_ACTION, clearPositiveAction)
             }
             dialog.arguments = bundle
             return dialog

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/SetupFragment.kt

@@ -31,6 +31,7 @@ import androidx.preference.PreferenceManager
 import androidx.viewpager2.widget.ViewPager2.OnPageChangeCallback
 import com.google.android.material.transition.MaterialFadeThrough
 import kotlinx.coroutines.launch
+import org.yuzu.yuzu_emu.NativeLibrary
 import java.io.File
 import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.YuzuApplication
@@ -162,7 +163,7 @@ class SetupFragment : Fragment() {
                     R.string.install_prod_keys_warning_help,
                     {
                         val file = File(DirectoryInitialization.userDirectory + "/keys/prod.keys")
-                        if (file.exists()) {
+                        if (file.exists() && NativeLibrary.areKeysPresent()) {
                             StepState.COMPLETE
                         } else {
                             StepState.INCOMPLETE
@@ -347,7 +348,8 @@ class SetupFragment : Fragment() {
     val getProdKey =
         registerForActivityResult(ActivityResultContracts.OpenDocument()) { result ->
             if (result != null) {
-                if (mainActivity.processKey(result)) {
+                mainActivity.processKey(result)
+                if (NativeLibrary.areKeysPresent()) {
                     keyCallback.onStepCompleted()
                 }
             }

src/android/app/src/main/java/org/yuzu/yuzu_emu/model/DriverViewModel.kt

@@ -144,6 +144,7 @@ class DriverViewModel : ViewModel() {
         val selectedDriverFile = File(StringSetting.DRIVER_PATH.getString())
         val selectedDriverMetadata = GpuDriverHelper.customDriverSettingData
         if (GpuDriverHelper.installedCustomDriverData == selectedDriverMetadata) {
+            setDriverReady()
             return
         }
 

src/android/app/src/main/java/org/yuzu/yuzu_emu/model/EmulationViewModel.kt

@@ -6,6 +6,7 @@ package org.yuzu.yuzu_emu.model
 import androidx.lifecycle.ViewModel
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
 
 class EmulationViewModel : ViewModel() {
     val emulationStarted: StateFlow<Boolean> get() = _emulationStarted
@@ -23,6 +24,9 @@ class EmulationViewModel : ViewModel() {
     val shaderMessage: StateFlow<String> get() = _shaderMessage
     private val _shaderMessage = MutableStateFlow("")
 
+    private val _drawerOpen = MutableStateFlow(false)
+    val drawerOpen = _drawerOpen.asStateFlow()
+
     fun setEmulationStarted(started: Boolean) {
         _emulationStarted.value = started
     }
@@ -49,6 +53,10 @@ class EmulationViewModel : ViewModel() {
         setTotalShaders(max)
     }
 
+    fun setDrawerOpen(value: Boolean) {
+        _drawerOpen.value = value
+    }
+
     fun clear() {
         setEmulationStarted(false)
         setIsEmulationStopping(false)

src/android/app/src/main/java/org/yuzu/yuzu_emu/model/Game.kt

@@ -70,11 +70,19 @@ class Game(
         }
 
     override fun equals(other: Any?): Boolean {
-        if (other !is Game) {
-            return false
-        }
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
 
-        return hashCode() == other.hashCode()
+        other as Game
+
+        if (title != other.title) return false
+        if (path != other.path) return false
+        if (programId != other.programId) return false
+        if (developer != other.developer) return false
+        if (version != other.version) return false
+        if (isHomebrew != other.isHomebrew) return false
+
+        return true
     }
 
     override fun hashCode(): Int {

src/android/app/src/main/java/org/yuzu/yuzu_emu/model/HomeViewModel.kt

@@ -31,6 +31,9 @@ class HomeViewModel : ViewModel() {
     private val _reloadPropertiesList = MutableStateFlow(false)
     val reloadPropertiesList get() = _reloadPropertiesList.asStateFlow()
 
+    private val _checkKeys = MutableStateFlow(false)
+    val checkKeys = _checkKeys.asStateFlow()
+
     var navigatedToSetup = false
 
     fun setNavigationVisibility(visible: Boolean, animated: Boolean) {
@@ -66,4 +69,8 @@ class HomeViewModel : ViewModel() {
     fun reloadPropertiesList(reload: Boolean) {
         _reloadPropertiesList.value = reload
     }
+
+    fun setCheckKeys(value: Boolean) {
+        _checkKeys.value = value
+    }
 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/ui/main/MainActivity.kt

@@ -64,6 +64,9 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
 
     override var themeId: Int = 0
 
+    private val CHECKED_DECRYPTION = "CheckedDecryption"
+    private var checkedDecryption = false
+
     override fun onCreate(savedInstanceState: Bundle?) {
         val splashScreen = installSplashScreen()
         splashScreen.setKeepOnScreenCondition { !DirectoryInitialization.areDirectoriesReady }
@@ -75,6 +78,18 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
         binding = ActivityMainBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
+        if (savedInstanceState != null) {
+            checkedDecryption = savedInstanceState.getBoolean(CHECKED_DECRYPTION)
+        }
+        if (!checkedDecryption) {
+            val firstTimeSetup = PreferenceManager.getDefaultSharedPreferences(applicationContext)
+                .getBoolean(Settings.PREF_FIRST_APP_LAUNCH, true)
+            if (!firstTimeSetup) {
+                checkKeys()
+            }
+            checkedDecryption = true
+        }
+
         WindowCompat.setDecorFitsSystemWindows(window, false)
         window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING)
 
@@ -150,6 +165,16 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
                     }
                 }
             }
+            launch {
+                repeatOnLifecycle(Lifecycle.State.CREATED) {
+                    homeViewModel.checkKeys.collect {
+                        if (it) {
+                            checkKeys()
+                            homeViewModel.setCheckKeys(false)
+                        }
+                    }
+                }
+            }
         }
 
         // Dismiss previous notifications (should not happen unless a crash occurred)
@@ -158,6 +183,21 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
         setInsets()
     }
 
+    private fun checkKeys() {
+        if (!NativeLibrary.areKeysPresent()) {
+            MessageDialogFragment.newInstance(
+                titleId = R.string.keys_missing,
+                descriptionId = R.string.keys_missing_description,
+                helpLinkId = R.string.keys_missing_help
+            ).show(supportFragmentManager, MessageDialogFragment.TAG)
+        }
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        outState.putBoolean(CHECKED_DECRYPTION, checkedDecryption)
+    }
+
     fun finishSetup(navController: NavController) {
         navController.navigate(R.id.action_firstTimeSetupFragment_to_gamesFragment)
         (binding.navigationView as NavigationBarView).setupWithNavController(navController)
@@ -349,6 +389,7 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
                     R.string.install_keys_success,
                     Toast.LENGTH_SHORT
                 ).show()
+                homeViewModel.setCheckKeys(true)
                 gamesViewModel.reloadGames(true)
                 return true
             } else {
@@ -399,6 +440,7 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
                         firmwarePath.deleteRecursively()
                         cacheFirmwareDir.copyRecursively(firmwarePath, true)
                         NativeLibrary.initializeSystem(true)
+                        homeViewModel.setCheckKeys(true)
                         getString(R.string.save_file_imported_success)
                     }
                 } catch (e: Exception) {

src/android/app/src/main/jni/applets/software_keyboard.cpp

@@ -82,7 +82,7 @@ AndroidKeyboard::ResultData AndroidKeyboard::ResultData::CreateFromFrontend(jobj
     const jstring string = reinterpret_cast<jstring>(env->GetObjectField(
         object, env->GetFieldID(s_keyboard_data_class, "text", "Ljava/lang/String;")));
     return ResultData{GetJString(env, string),
-                      static_cast<Service::AM::Applets::SwkbdResult>(env->GetIntField(
+                      static_cast<Service::AM::Frontend::SwkbdResult>(env->GetIntField(
                           object, env->GetFieldID(s_keyboard_data_class, "result", "I")))};
 }
 
@@ -149,7 +149,7 @@ void AndroidKeyboard::ShowNormalKeyboard() const {
 }
 
 void AndroidKeyboard::ShowTextCheckDialog(
-    Service::AM::Applets::SwkbdTextCheckResult text_check_result,
+    Service::AM::Frontend::SwkbdTextCheckResult text_check_result,
     std::u16string text_check_message) const {
     LOG_WARNING(Frontend, "(STUBBED) called, backend requested to show the text check dialog.");
 }
@@ -204,7 +204,7 @@ void AndroidKeyboard::InlineTextChanged(
              "\ncursor_position={}",
              Common::UTF16ToUTF8(text_parameters.input_text), text_parameters.cursor_position);
 
-    submit_inline_callback(Service::AM::Applets::SwkbdReplyType::ChangedString,
+    submit_inline_callback(Service::AM::Frontend::SwkbdReplyType::ChangedString,
                            text_parameters.input_text, text_parameters.cursor_position);
 }
 
@@ -219,7 +219,7 @@ void AndroidKeyboard::SubmitInlineKeyboardText(std::u16string submitted_text) {
 
     m_current_text += submitted_text;
 
-    submit_inline_callback(Service::AM::Applets::SwkbdReplyType::ChangedString, m_current_text,
+    submit_inline_callback(Service::AM::Frontend::SwkbdReplyType::ChangedString, m_current_text,
                            m_current_text.size());
 }
 
@@ -236,12 +236,12 @@ void AndroidKeyboard::SubmitInlineKeyboardInput(int key_code) {
     case KEYCODE_BACK:
     case KEYCODE_ENTER:
         m_is_inline_active = false;
-        submit_inline_callback(Service::AM::Applets::SwkbdReplyType::DecidedEnter, m_current_text,
+        submit_inline_callback(Service::AM::Frontend::SwkbdReplyType::DecidedEnter, m_current_text,
                                static_cast<s32>(m_current_text.size()));
         break;
     case KEYCODE_DEL:
         m_current_text.pop_back();
-        submit_inline_callback(Service::AM::Applets::SwkbdReplyType::ChangedString, m_current_text,
+        submit_inline_callback(Service::AM::Frontend::SwkbdReplyType::ChangedString, m_current_text,
                                m_current_text.size());
         break;
     }

src/android/app/src/main/jni/applets/software_keyboard.h

@@ -24,7 +24,7 @@ public:
 
     void ShowNormalKeyboard() const override;
 
-    void ShowTextCheckDialog(Service::AM::Applets::SwkbdTextCheckResult text_check_result,
+    void ShowTextCheckDialog(Service::AM::Frontend::SwkbdTextCheckResult text_check_result,
                              std::u16string text_check_message) const override;
 
     void ShowInlineKeyboard(
@@ -45,7 +45,7 @@ private:
         static ResultData CreateFromFrontend(jobject object);
 
         std::string text;
-        Service::AM::Applets::SwkbdResult result{};
+        Service::AM::Frontend::SwkbdResult result{};
     };
 
     void SubmitNormalText(const ResultData& result) const;

src/android/app/src/main/jni/game_metadata.cpp

@@ -1,12 +1,12 @@
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <core/core.h>
-#include <core/file_sys/mode.h>
-#include <core/file_sys/patch_manager.h>
-#include <core/loader/nro.h>
-#include <jni.h>
+#include "core/core.h"
+#include "core/file_sys/fs_filesystem.h"
+#include "core/file_sys/patch_manager.h"
 #include "core/loader/loader.h"
+#include "core/loader/nro.h"
+#include "jni.h"
 #include "jni/android_common/android_common.h"
 #include "native.h"
 
@@ -79,7 +79,7 @@ extern "C" {
 jboolean Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getIsValid(JNIEnv* env, jobject obj,
                                                                jstring jpath) {
     const auto file = EmulationSession::GetInstance().System().GetFilesystem()->OpenFile(
-        GetJString(env, jpath), FileSys::Mode::Read);
+        GetJString(env, jpath), FileSys::OpenMode::Read);
     if (!file) {
         return false;
     }

src/android/app/src/main/jni/native.cpp

@@ -35,20 +35,22 @@
 #include "core/crypto/key_manager.h"
 #include "core/file_sys/card_image.h"
 #include "core/file_sys/content_archive.h"
+#include "core/file_sys/fs_filesystem.h"
 #include "core/file_sys/submission_package.h"
-#include "core/file_sys/vfs.h"
-#include "core/file_sys/vfs_real.h"
+#include "core/file_sys/vfs/vfs.h"
+#include "core/file_sys/vfs/vfs_real.h"
 #include "core/frontend/applets/cabinet.h"
 #include "core/frontend/applets/controller.h"
 #include "core/frontend/applets/error.h"
-#include "core/frontend/applets/general_frontend.h"
+#include "core/frontend/applets/general.h"
 #include "core/frontend/applets/mii_edit.h"
 #include "core/frontend/applets/profile_select.h"
 #include "core/frontend/applets/software_keyboard.h"
 #include "core/frontend/applets/web_browser.h"
 #include "core/hle/service/am/applet_ae.h"
+#include "core/hle/service/am/applet_manager.h"
 #include "core/hle/service/am/applet_oe.h"
-#include "core/hle/service/am/applets/applets.h"
+#include "core/hle/service/am/frontend/applets.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/loader/loader.h"
 #include "frontend_common/config.h"
@@ -154,7 +156,7 @@ void EmulationSession::SurfaceChanged() {
 }
 
 void EmulationSession::ConfigureFilesystemProvider(const std::string& filepath) {
-    const auto file = m_system.GetFilesystem()->OpenFile(filepath, FileSys::Mode::Read);
+    const auto file = m_system.GetFilesystem()->OpenFile(filepath, FileSys::OpenMode::Read);
     if (!file) {
         return;
     }
@@ -207,6 +209,12 @@ void EmulationSession::InitializeSystem(bool reload) {
     m_system.GetFileSystemController().CreateFactories(*m_vfs);
 }
 
+void EmulationSession::SetAppletId(int applet_id) {
+    m_applet_id = applet_id;
+    m_system.GetFrontendAppletHolder().SetCurrentAppletId(
+        static_cast<Service::AM::AppletId>(m_applet_id));
+}
+
 Core::SystemResultStatus EmulationSession::InitializeEmulation(const std::string& filepath) {
     std::scoped_lock lock(m_mutex);
 
@@ -221,7 +229,7 @@ Core::SystemResultStatus EmulationSession::InitializeEmulation(const std::string
     m_system.ApplySettings();
     Settings::LogSettings();
     m_system.HIDCore().ReloadInputDevices();
-    m_system.SetAppletFrontendSet({
+    m_system.SetFrontendAppletSet({
         nullptr,                     // Amiibo Settings
         nullptr,                     // Controller Selector
         nullptr,                     // Error Display
@@ -237,7 +245,10 @@ Core::SystemResultStatus EmulationSession::InitializeEmulation(const std::string
     ConfigureFilesystemProvider(filepath);
 
     // Load the ROM.
-    m_load_result = m_system.Load(EmulationSession::GetInstance().Window(), filepath);
+    Service::AM::FrontendAppletParameters params{
+        .applet_id = static_cast<Service::AM::AppletId>(m_applet_id),
+    };
+    m_load_result = m_system.Load(EmulationSession::GetInstance().Window(), filepath, params);
     if (m_load_result != Core::SystemResultStatus::Success) {
         return m_load_result;
     }
@@ -247,6 +258,7 @@ Core::SystemResultStatus EmulationSession::InitializeEmulation(const std::string
     m_system.GetCpuManager().OnGpuReady();
     m_system.RegisterExitCallback([&] { HaltEmulation(); });
 
+    OnEmulationStarted();
     return Core::SystemResultStatus::Success;
 }
 
@@ -321,6 +333,9 @@ void EmulationSession::RunEmulation() {
             }
         }
     }
+
+    // Reset current applet ID.
+    m_applet_id = static_cast<int>(Service::AM::AppletId::Application);
 }
 
 bool EmulationSession::IsHandheldOnly() {
@@ -463,8 +478,8 @@ int Java_org_yuzu_yuzu_1emu_NativeLibrary_installFileToNand(JNIEnv* env, jobject
     };
 
     return static_cast<int>(
-        ContentManager::InstallNSP(&EmulationSession::GetInstance().System(),
-                                   EmulationSession::GetInstance().System().GetFilesystem().get(),
+        ContentManager::InstallNSP(EmulationSession::GetInstance().System(),
+                                   *EmulationSession::GetInstance().System().GetFilesystem(),
                                    GetJString(env, j_file), callback));
 }
 
@@ -474,8 +489,8 @@ jboolean Java_org_yuzu_yuzu_1emu_NativeLibrary_doesUpdateMatchProgram(JNIEnv* en
     u64 program_id = EmulationSession::GetProgramId(env, jprogramId);
     std::string updatePath = GetJString(env, jupdatePath);
     std::shared_ptr<FileSys::NSP> nsp = std::make_shared<FileSys::NSP>(
-        EmulationSession::GetInstance().System().GetFilesystem()->OpenFile(updatePath,
-                                                                           FileSys::Mode::Read));
+        EmulationSession::GetInstance().System().GetFilesystem()->OpenFile(
+            updatePath, FileSys::OpenMode::Read));
     for (const auto& item : nsp->GetNCAs()) {
         for (const auto& nca_details : item.second) {
             if (nca_details.second->GetName().ends_with(".cnmt.nca")) {
@@ -674,6 +689,11 @@ jstring Java_org_yuzu_yuzu_1emu_NativeLibrary_getCpuBackend(JNIEnv* env, jclass
     return ToJString(env, "JIT");
 }
 
+jstring Java_org_yuzu_yuzu_1emu_NativeLibrary_getGpuDriver(JNIEnv* env, jobject jobj) {
+    return ToJString(env,
+                     EmulationSession::GetInstance().System().GPU().Renderer().GetDeviceVendor());
+}
+
 void Java_org_yuzu_yuzu_1emu_NativeLibrary_applySettings(JNIEnv* env, jobject jobj) {
     EmulationSession::GetInstance().System().ApplySettings();
 }
@@ -713,7 +733,7 @@ void Java_org_yuzu_yuzu_1emu_NativeLibrary_initializeEmptyUserDirectory(JNIEnv*
                                                                         jobject instance) {
     const auto nand_dir = Common::FS::GetYuzuPath(Common::FS::YuzuPath::NANDDir);
     auto vfs_nand_dir = EmulationSession::GetInstance().System().GetFilesystem()->OpenDirectory(
-        Common::FS::PathToUTF8String(nand_dir), FileSys::Mode::Read);
+        Common::FS::PathToUTF8String(nand_dir), FileSys::OpenMode::Read);
 
     const auto user_id = EmulationSession::GetInstance().System().GetProfileManager().GetUser(
         static_cast<std::size_t>(0));
@@ -748,13 +768,12 @@ jstring Java_org_yuzu_yuzu_1emu_NativeLibrary_getAppletLaunchPath(JNIEnv* env, j
 
 void Java_org_yuzu_yuzu_1emu_NativeLibrary_setCurrentAppletId(JNIEnv* env, jclass clazz,
                                                               jint jappletId) {
-    EmulationSession::GetInstance().System().GetAppletManager().SetCurrentAppletId(
-        static_cast<Service::AM::Applets::AppletId>(jappletId));
+    EmulationSession::GetInstance().SetAppletId(jappletId);
 }
 
 void Java_org_yuzu_yuzu_1emu_NativeLibrary_setCabinetMode(JNIEnv* env, jclass clazz,
                                                           jint jcabinetMode) {
-    EmulationSession::GetInstance().System().GetAppletManager().SetCabinetMode(
+    EmulationSession::GetInstance().System().GetFrontendAppletHolder().SetCabinetMode(
         static_cast<Service::NFP::CabinetMode>(jcabinetMode));
 }
 
@@ -819,7 +838,7 @@ void Java_org_yuzu_yuzu_1emu_NativeLibrary_removeUpdate(JNIEnv* env, jobject job
 void Java_org_yuzu_yuzu_1emu_NativeLibrary_removeDLC(JNIEnv* env, jobject jobj,
                                                      jstring jprogramId) {
     auto program_id = EmulationSession::GetProgramId(env, jprogramId);
-    ContentManager::RemoveAllDLC(&EmulationSession::GetInstance().System(), program_id);
+    ContentManager::RemoveAllDLC(EmulationSession::GetInstance().System(), program_id);
 }
 
 void Java_org_yuzu_yuzu_1emu_NativeLibrary_removeMod(JNIEnv* env, jobject jobj, jstring jprogramId,
@@ -829,8 +848,9 @@ void Java_org_yuzu_yuzu_1emu_NativeLibrary_removeMod(JNIEnv* env, jobject jobj,
                               program_id, GetJString(env, jname));
 }
 
-jobject Java_org_yuzu_yuzu_1emu_NativeLibrary_verifyInstalledContents(JNIEnv* env, jobject jobj,
-                                                                      jobject jcallback) {
+jobjectArray Java_org_yuzu_yuzu_1emu_NativeLibrary_verifyInstalledContents(JNIEnv* env,
+                                                                           jobject jobj,
+                                                                           jobject jcallback) {
     auto jlambdaClass = env->GetObjectClass(jcallback);
     auto jlambdaInvokeMethod = env->GetMethodID(
         jlambdaClass, "invoke", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
@@ -842,7 +862,7 @@ jobject Java_org_yuzu_yuzu_1emu_NativeLibrary_verifyInstalledContents(JNIEnv* en
 
     auto& session = EmulationSession::GetInstance();
     std::vector<std::string> result = ContentManager::VerifyInstalledContents(
-        &session.System(), session.GetContentProvider(), callback);
+        session.System(), *session.GetContentProvider(), callback);
     jobjectArray jresult =
         env->NewObjectArray(result.size(), IDCache::GetStringClass(), ToJString(env, ""));
     for (size_t i = 0; i < result.size(); ++i) {
@@ -863,7 +883,7 @@ jint Java_org_yuzu_yuzu_1emu_NativeLibrary_verifyGameContents(JNIEnv* env, jobje
     };
     auto& session = EmulationSession::GetInstance();
     return static_cast<jint>(
-        ContentManager::VerifyGameContents(&session.System(), GetJString(env, jpath), callback));
+        ContentManager::VerifyGameContents(session.System(), GetJString(env, jpath), callback));
 }
 
 jstring Java_org_yuzu_yuzu_1emu_NativeLibrary_getSavePath(JNIEnv* env, jobject jobj,
@@ -882,7 +902,7 @@ jstring Java_org_yuzu_yuzu_1emu_NativeLibrary_getSavePath(JNIEnv* env, jobject j
 
     const auto nandDir = Common::FS::GetYuzuPath(Common::FS::YuzuPath::NANDDir);
     auto vfsNandDir = system.GetFilesystem()->OpenDirectory(Common::FS::PathToUTF8String(nandDir),
-                                                            FileSys::Mode::Read);
+                                                            FileSys::OpenMode::Read);
 
     const auto user_save_data_path = FileSys::SaveDataFactory::GetFullPath(
         {}, vfsNandDir, FileSys::SaveDataSpaceId::NandUser, FileSys::SaveDataType::SaveData,
@@ -912,4 +932,10 @@ void Java_org_yuzu_yuzu_1emu_NativeLibrary_clearFilesystemProvider(JNIEnv* env,
     EmulationSession::GetInstance().GetContentProvider()->ClearAllEntries();
 }
 
+jboolean Java_org_yuzu_yuzu_1emu_NativeLibrary_areKeysPresent(JNIEnv* env, jobject jobj) {
+    auto& system = EmulationSession::GetInstance().System();
+    system.GetFileSystemController().CreateFactories(*system.GetFilesystem());
+    return ContentManager::AreKeysPresent();
+}
+
 } // extern "C"

src/android/app/src/main/jni/native.h

@@ -45,6 +45,7 @@ public:
     const Core::PerfStatsResults& PerfStats();
     void ConfigureFilesystemProvider(const std::string& filepath);
     void InitializeSystem(bool reload);
+    void SetAppletId(int applet_id);
     Core::SystemResultStatus InitializeEmulation(const std::string& filepath);
 
     bool IsHandheldOnly();
@@ -77,6 +78,7 @@ private:
     std::atomic<bool> m_is_paused = false;
     SoftwareKeyboard::AndroidKeyboard* m_software_keyboard{};
     std::unique_ptr<FileSys::ManualContentProvider> m_manual_provider;
+    int m_applet_id{1};
 
     // GPU driver parameters
     std::shared_ptr<Common::DynamicLibrary> m_vulkan_library;

src/android/app/src/main/res/layout-w600dp/fragment_about.xml

@@ -11,12 +11,14 @@
         android:id="@+id/appbar_about"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:fitsSystemWindows="true">
+        android:fitsSystemWindows="true"
+        android:touchscreenBlocksFocus="false">
 
         <com.google.android.material.appbar.MaterialToolbar
             android:id="@+id/toolbar_about"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
+            android:touchscreenBlocksFocus="false"
             app:navigationIcon="@drawable/ic_back"
             app:title="@string/about" />
 
@@ -28,6 +30,7 @@
         android:layout_height="match_parent"
         android:fadeScrollbars="false"
         android:scrollbars="vertical"
+        android:defaultFocusHighlightEnabled="false"
         app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
         <LinearLayout

src/android/app/src/main/res/layout-w600dp/fragment_game_info.xml

@@ -0,0 +1,155 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/coordinator_about"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="?attr/colorSurface">
+
+    <com.google.android.material.appbar.AppBarLayout
+        android:id="@+id/appbar_info"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:fitsSystemWindows="true"
+        android:touchscreenBlocksFocus="false">
+
+        <com.google.android.material.appbar.MaterialToolbar
+            android:id="@+id/toolbar_info"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            android:touchscreenBlocksFocus="false"
+            app:navigationIcon="@drawable/ic_back" />
+
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <androidx.core.widget.NestedScrollView
+        android:id="@+id/scroll_info"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:defaultFocusHighlightEnabled="false"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior">
+
+        <LinearLayout
+            android:id="@+id/content_info"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            android:paddingHorizontal="16dp"
+            android:baselineAligned="false">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:orientation="vertical"
+                android:layout_weight="3"
+                android:gravity="top|center_horizontal"
+                android:paddingHorizontal="16dp">
+
+                <com.google.android.material.button.MaterialButton
+                    android:id="@+id/button_copy"
+                    style="@style/Widget.Material3.Button"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="16dp"
+                    android:text="@string/copy_details" />
+
+                <com.google.android.material.button.MaterialButton
+                    android:id="@+id/button_verify_integrity"
+                    style="@style/Widget.Material3.Button"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="10dp"
+                    android:text="@string/verify_integrity" />
+
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:orientation="vertical"
+                android:layout_weight="1">
+
+                <com.google.android.material.textfield.TextInputLayout
+                    android:id="@+id/path"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:paddingTop="16dp">
+
+                    <com.google.android.material.textfield.TextInputEditText
+                        android:id="@+id/path_field"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:editable="false"
+                        android:importantForAutofill="no"
+                        android:inputType="none"
+                        android:minHeight="48dp"
+                        android:textAlignment="viewStart"
+                        tools:text="1.0.0" />
+
+                </com.google.android.material.textfield.TextInputLayout>
+
+                <com.google.android.material.textfield.TextInputLayout
+                    android:id="@+id/program_id"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:paddingTop="16dp">
+
+                    <com.google.android.material.textfield.TextInputEditText
+                        android:id="@+id/program_id_field"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:editable="false"
+                        android:importantForAutofill="no"
+                        android:inputType="none"
+                        android:minHeight="48dp"
+                        android:textAlignment="viewStart"
+                        tools:text="1.0.0" />
+
+                </com.google.android.material.textfield.TextInputLayout>
+
+                <com.google.android.material.textfield.TextInputLayout
+                    android:id="@+id/developer"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:paddingTop="16dp">
+
+                    <com.google.android.material.textfield.TextInputEditText
+                        android:id="@+id/developer_field"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:editable="false"
+                        android:importantForAutofill="no"
+                        android:inputType="none"
+                        android:minHeight="48dp"
+                        android:textAlignment="viewStart"
+                        tools:text="1.0.0" />
+
+                </com.google.android.material.textfield.TextInputLayout>
+
+                <com.google.android.material.textfield.TextInputLayout
+                    android:id="@+id/version"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:paddingTop="16dp">
+
+                    <com.google.android.material.textfield.TextInputEditText
+                        android:id="@+id/version_field"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:editable="false"
+                        android:importantForAutofill="no"
+                        android:inputType="none"
+                        android:minHeight="48dp"
+                        android:textAlignment="viewStart"
+                        tools:text="1.0.0" />
+
+                </com.google.android.material.textfield.TextInputLayout>
+
+            </LinearLayout>
+
+        </LinearLayout>
+
+    </androidx.core.widget.NestedScrollView>
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

src/android/app/src/main/res/layout-w600dp/fragment_game_properties.xml

@@ -14,6 +14,7 @@
         android:clipToPadding="false"
         android:fadeScrollbars="false"
         android:scrollbars="vertical"
+        android:defaultFocusHighlightEnabled="false"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toEndOf="@+id/icon_layout"
         app:layout_constraintTop_toTopOf="parent">

src/android/app/src/main/res/layout/card_driver_option.xml

@@ -23,6 +23,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_gravity="center_vertical"
+            android:focusable="false"
             android:clickable="false"
             android:checked="false" />
 

src/android/app/src/main/res/layout/card_folder.xml

@@ -6,16 +6,14 @@
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:layout_marginHorizontal="16dp"
-    android:layout_marginVertical="12dp"
-    android:focusable="true">
+    android:layout_marginVertical="12dp">
 
     <androidx.constraintlayout.widget.ConstraintLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="horizontal"
         android:padding="16dp"
-        android:layout_gravity="center_vertical"
-        android:animateLayoutChanges="true">
+        android:layout_gravity="center_vertical">
 
         <com.google.android.material.textview.MaterialTextView
             android:id="@+id/path"

src/android/app/src/main/res/layout/fragment_about.xml

@@ -11,12 +11,14 @@
         android:id="@+id/appbar_about"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:fitsSystemWindows="true">
+        android:fitsSystemWindows="true"
+        android:touchscreenBlocksFocus="false">
 
         <com.google.android.material.appbar.MaterialToolbar
             android:id="@+id/toolbar_about"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
+            android:touchscreenBlocksFocus="false"
             app:title="@string/about"
             app:navigationIcon="@drawable/ic_back" />
 
@@ -28,6 +30,7 @@
         android:layout_height="match_parent"
         android:scrollbars="vertical"
         android:fadeScrollbars="false"
+        android:defaultFocusHighlightEnabled="false"
         app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
         <LinearLayout

src/android/app/src/main/res/layout/fragment_addons.xml

@@ -11,6 +11,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:fitsSystemWindows="true"
+        android:touchscreenBlocksFocus="false"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent">
@@ -19,6 +20,7 @@
             android:id="@+id/toolbar_addons"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
+            android:touchscreenBlocksFocus="false"
             app:navigationIcon="@drawable/ic_back" />
 
     </com.google.android.material.appbar.AppBarLayout>
@@ -28,6 +30,8 @@
         android:layout_width="match_parent"
         android:layout_height="0dp"
         android:clipToPadding="false"
+        android:defaultFocusHighlightEnabled="false"
+        android:nextFocusDown="@id/button_install"
         app:layout_behavior="@string/appbar_scrolling_view_behavior"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"

src/android/app/src/main/res/layout/fragment_applet_launcher.xml

@@ -10,12 +10,14 @@
         android:id="@+id/appbar_applets"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:fitsSystemWindows="true">
+        android:fitsSystemWindows="true"
+        android:touchscreenBlocksFocus="false">
 
         <com.google.android.material.appbar.MaterialToolbar
             android:id="@+id/toolbar_applets"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
+            android:touchscreenBlocksFocus="false"
             app:navigationIcon="@drawable/ic_back"
             app:title="@string/applets" />
 

src/android/app/src/main/res/layout/fragment_driver_manager.xml

@@ -15,12 +15,14 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:fitsSystemWindows="true"
+            android:touchscreenBlocksFocus="false"
             app:liftOnScrollTargetViewId="@id/list_drivers">
 
             <com.google.android.material.appbar.MaterialToolbar
                 android:id="@+id/toolbar_drivers"
                 android:layout_width="match_parent"
                 android:layout_height="?attr/actionBarSize"
+                android:touchscreenBlocksFocus="false"
                 app:navigationIcon="@drawable/ic_back"
                 app:title="@string/gpu_driver_manager" />
 

src/android/app/src/main/res/layout/fragment_early_access.xml

@@ -11,12 +11,14 @@
         android:id="@+id/appbar_ea"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:fitsSystemWindows="true">
+        android:fitsSystemWindows="true"
+        android:touchscreenBlocksFocus="false">
 
         <com.google.android.material.appbar.MaterialToolbar
             android:id="@+id/toolbar_about"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
+            android:touchscreenBlocksFocus="false"
             app:navigationIcon="@drawable/ic_back"
             app:title="@string/early_access" />
 
@@ -30,6 +32,7 @@
         android:paddingBottom="20dp"
         android:scrollbars="vertical"
         android:fadeScrollbars="false"
+        android:defaultFocusHighlightEnabled="false"
         app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
         <LinearLayout

src/android/app/src/main/res/layout/fragment_emulation.xml

@@ -5,6 +5,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:keepScreenOn="true"
+    android:defaultFocusHighlightEnabled="false"
     tools:context="org.yuzu.yuzu_emu.fragments.EmulationFragment"
     tools:openDrawer="start">
 
@@ -24,7 +25,8 @@
                 android:layout_height="match_parent"
                 android:layout_gravity="center"
                 android:focusable="false"
-                android:focusableInTouchMode="false" />
+                android:focusableInTouchMode="false"
+                android:defaultFocusHighlightEnabled="false" />
 
             <com.google.android.material.card.MaterialCardView
                 android:id="@+id/loading_indicator"
@@ -32,7 +34,7 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
-                android:focusable="false"
+                android:defaultFocusHighlightEnabled="false"
                 android:clickable="false">
 
                 <androidx.constraintlayout.widget.ConstraintLayout
@@ -118,6 +120,7 @@
                 android:layout_gravity="center"
                 android:focusable="true"
                 android:focusableInTouchMode="true"
+                android:defaultFocusHighlightEnabled="false"
                 android:visibility="invisible" />
 
             <Button
@@ -160,6 +163,7 @@
         android:layout_width="wrap_content"
         android:layout_height="match_parent"
         android:layout_gravity="start"
+        android:focusedByDefault="true"
         app:headerLayout="@layout/header_in_game"
         app:menu="@menu/menu_in_game"
         tools:visibility="gone" />

src/android/app/src/main/res/layout/fragment_folders.xml

@@ -15,12 +15,14 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:fitsSystemWindows="true"
+            android:touchscreenBlocksFocus="false"
             app:liftOnScrollTargetViewId="@id/list_folders">
 
             <com.google.android.material.appbar.MaterialToolbar
                 android:id="@+id/toolbar_folders"
                 android:layout_width="match_parent"
                 android:layout_height="?attr/actionBarSize"
+                android:touchscreenBlocksFocus="false"
                 app:navigationIcon="@drawable/ic_back"
                 app:title="@string/game_folders" />
 
@@ -31,6 +33,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:clipToPadding="false"
+            android:defaultFocusHighlightEnabled="false"
             app:layout_behavior="@string/appbar_scrolling_view_behavior" />
 
     </androidx.coordinatorlayout.widget.CoordinatorLayout>

src/android/app/src/main/res/layout/fragment_game_info.xml

@@ -11,12 +11,14 @@
         android:id="@+id/appbar_info"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:touchscreenBlocksFocus="false"
         android:fitsSystemWindows="true">
 
         <com.google.android.material.appbar.MaterialToolbar
             android:id="@+id/toolbar_info"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
+            android:touchscreenBlocksFocus="false"
             app:navigationIcon="@drawable/ic_back" />
 
     </com.google.android.material.appbar.AppBarLayout>
@@ -25,6 +27,7 @@
         android:id="@+id/scroll_info"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:defaultFocusHighlightEnabled="false"
         app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
         <LinearLayout

src/android/app/src/main/res/layout/fragment_game_properties.xml

@@ -12,7 +12,8 @@
         android:layout_height="match_parent"
         android:scrollbars="vertical"
         android:fadeScrollbars="false"
-        android:clipToPadding="false">
+        android:clipToPadding="false"
+        android:defaultFocusHighlightEnabled="false">
 
         <LinearLayout
             android:id="@+id/layout_all"
@@ -86,7 +87,7 @@
                 android:id="@+id/list_properties"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-                tools:listitem="@layout/card_simple_outlined" />
+                android:defaultFocusHighlightEnabled="false" />
 
         </LinearLayout>
 

src/android/app/src/main/res/layout/fragment_games.xml

@@ -27,6 +27,7 @@
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             android:clipToPadding="false"
+            android:defaultFocusHighlightEnabled="false"
             tools:listitem="@layout/card_game" />
 
     </RelativeLayout>

src/android/app/src/main/res/layout/fragment_home_settings.xml

@@ -7,7 +7,8 @@
     android:background="?attr/colorSurface"
     android:scrollbars="vertical"
     android:fadeScrollbars="false"
-    android:clipToPadding="false">
+    android:clipToPadding="false"
+    android:defaultFocusHighlightEnabled="false">
 
     <androidx.appcompat.widget.LinearLayoutCompat
         android:id="@+id/linear_layout_settings"

src/android/app/src/main/res/layout/fragment_installables.xml

@@ -10,12 +10,14 @@
         android:id="@+id/appbar_installables"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:fitsSystemWindows="true">
+        android:fitsSystemWindows="true"
+        android:touchscreenBlocksFocus="false">
 
         <com.google.android.material.appbar.MaterialToolbar
             android:id="@+id/toolbar_installables"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
+            android:touchscreenBlocksFocus="false"
             app:title="@string/manage_yuzu_data"
             app:navigationIcon="@drawable/ic_back" />
 

src/android/app/src/main/res/layout/fragment_licenses.xml

@@ -10,12 +10,14 @@
         android:id="@+id/appbar_licenses"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:fitsSystemWindows="true">
+        android:fitsSystemWindows="true"
+        android:touchscreenBlocksFocus="false">
 
         <com.google.android.material.appbar.MaterialToolbar
             android:id="@+id/toolbar_licenses"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
+            android:touchscreenBlocksFocus="false"
             app:title="@string/licenses"
             app:navigationIcon="@drawable/ic_back" />
 

src/android/app/src/main/res/layout/fragment_settings.xml

@@ -11,6 +11,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:fitsSystemWindows="true"
+        android:touchscreenBlocksFocus="false"
         app:elevation="0dp">
 
         <com.google.android.material.appbar.CollapsingToolbarLayout
@@ -24,6 +25,7 @@
                 android:id="@+id/toolbar_settings"
                 android:layout_width="match_parent"
                 android:layout_height="?attr/actionBarSize"
+                android:touchscreenBlocksFocus="false"
                 app:layout_collapseMode="pin"
                 app:navigationIcon="@drawable/ic_back" />
 

src/android/app/src/main/res/layout/list_item_addon.xml

@@ -6,7 +6,7 @@
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:background="?attr/selectableItemBackground"
-    android:focusable="true"
+    android:focusable="false"
     android:paddingHorizontal="20dp"
     android:paddingVertical="16dp">
 

src/android/app/src/main/res/layout/list_item_settings_header.xml

@@ -12,4 +12,5 @@
     android:textAlignment="viewStart"
     android:textColor="?attr/colorPrimary"
     android:textStyle="bold"
+    android:focusable="false"
     tools:text="CPU Settings" />

src/android/app/src/main/res/values/strings.xml

@@ -144,6 +144,9 @@
     <string name="no_save_data_found">No save data found</string>
     <string name="verify_installed_content">Verify installed content</string>
     <string name="verify_installed_content_description">Checks all installed content for corruption</string>
+    <string name="keys_missing">Encryption keys are missing</string>
+    <string name="keys_missing_description">Firmware and retail games cannot be decrypted</string>
+    <string name="keys_missing_help">https://yuzu-emu.org/help/quickstart/#dumping-decryption-keys</string>
 
     <!-- Applet launcher strings -->
     <string name="applets">Applet launcher</string>

src/common/CMakeLists.txt

@@ -106,6 +106,7 @@ add_library(common STATIC
     precompiled_headers.h
     quaternion.h
     range_map.h
+    range_mutex.h
     reader_writer_queue.h
     ring_buffer.h
     ${CMAKE_CURRENT_BINARY_DIR}/scm_rev.cpp

src/common/arm64/native_clock.cpp

@@ -30,27 +30,27 @@ NativeClock::NativeClock() {
 }
 
 std::chrono::nanoseconds NativeClock::GetTimeNS() const {
-    return std::chrono::nanoseconds{MultiplyHigh(GetHostTicksElapsed(), ns_cntfrq_factor)};
+    return std::chrono::nanoseconds{MultiplyHigh(GetUptime(), ns_cntfrq_factor)};
 }
 
 std::chrono::microseconds NativeClock::GetTimeUS() const {
-    return std::chrono::microseconds{MultiplyHigh(GetHostTicksElapsed(), us_cntfrq_factor)};
+    return std::chrono::microseconds{MultiplyHigh(GetUptime(), us_cntfrq_factor)};
 }
 
 std::chrono::milliseconds NativeClock::GetTimeMS() const {
-    return std::chrono::milliseconds{MultiplyHigh(GetHostTicksElapsed(), ms_cntfrq_factor)};
+    return std::chrono::milliseconds{MultiplyHigh(GetUptime(), ms_cntfrq_factor)};
 }
 
-u64 NativeClock::GetCNTPCT() const {
-    return MultiplyHigh(GetHostTicksElapsed(), guest_cntfrq_factor);
+s64 NativeClock::GetCNTPCT() const {
+    return MultiplyHigh(GetUptime(), guest_cntfrq_factor);
 }
 
-u64 NativeClock::GetGPUTick() const {
-    return MultiplyHigh(GetHostTicksElapsed(), gputick_cntfrq_factor);
+s64 NativeClock::GetGPUTick() const {
+    return MultiplyHigh(GetUptime(), gputick_cntfrq_factor);
 }
 
-u64 NativeClock::GetHostTicksNow() const {
-    u64 cntvct_el0 = 0;
+s64 NativeClock::GetUptime() const {
+    s64 cntvct_el0 = 0;
     asm volatile("dsb ish\n\t"
                  "mrs %[cntvct_el0], cntvct_el0\n\t"
                  "dsb ish\n\t"
@@ -58,15 +58,11 @@ u64 NativeClock::GetHostTicksNow() const {
     return cntvct_el0;
 }
 
-u64 NativeClock::GetHostTicksElapsed() const {
-    return GetHostTicksNow();
-}
-
 bool NativeClock::IsNative() const {
     return true;
 }
 
-u64 NativeClock::GetHostCNTFRQ() {
+s64 NativeClock::GetHostCNTFRQ() {
     u64 cntfrq_el0 = 0;
     std::string_view board{""};
 #ifdef ANDROID

src/common/arm64/native_clock.h

@@ -17,17 +17,15 @@ public:
 
     std::chrono::milliseconds GetTimeMS() const override;
 
-    u64 GetCNTPCT() const override;
+    s64 GetCNTPCT() const override;
 
-    u64 GetGPUTick() const override;
+    s64 GetGPUTick() const override;
 
-    u64 GetHostTicksNow() const override;
-
-    u64 GetHostTicksElapsed() const override;
+    s64 GetUptime() const override;
 
     bool IsNative() const override;
 
-    static u64 GetHostCNTFRQ();
+    static s64 GetHostCNTFRQ();
 
 public:
     using FactorType = unsigned __int128;

src/common/memory_detect.h

@@ -18,4 +18,4 @@ struct MemoryInfo {
  */
 [[nodiscard]] const MemoryInfo& GetMemInfo();
 
-} // namespace Common
+} // namespace Common

src/common/overflow.h

@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include <algorithm>
 #include <type_traits>
 #include "bit_cast.h"
 
@@ -19,4 +20,21 @@ inline T WrappingAdd(T lhs, T rhs) {
     return BitCast<T>(lhs_u + rhs_u);
 }
 
+template <typename T>
+    requires(std::is_integral_v<T> && std::is_signed_v<T>)
+inline bool CanAddWithoutOverflow(T lhs, T rhs) {
+#ifdef _MSC_VER
+    if (lhs >= 0 && rhs >= 0) {
+        return WrappingAdd(lhs, rhs) >= std::max(lhs, rhs);
+    } else if (lhs < 0 && rhs < 0) {
+        return WrappingAdd(lhs, rhs) <= std::min(lhs, rhs);
+    } else {
+        return true;
+    }
+#else
+    T res;
+    return !__builtin_add_overflow(lhs, rhs, &res);
+#endif
+}
+
 } // namespace Common

src/common/range_mutex.h

@@ -0,0 +1,93 @@
+// SPDX-FileCopyrightText: 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <condition_variable>
+#include <mutex>
+
+#include "common/intrusive_list.h"
+
+namespace Common {
+
+class ScopedRangeLock;
+
+class RangeMutex {
+public:
+    explicit RangeMutex() = default;
+    ~RangeMutex() = default;
+
+private:
+    friend class ScopedRangeLock;
+
+    void Lock(ScopedRangeLock& l);
+    void Unlock(ScopedRangeLock& l);
+    bool HasIntersectionLocked(ScopedRangeLock& l);
+
+private:
+    std::mutex m_mutex;
+    std::condition_variable m_cv;
+
+    using LockList = Common::IntrusiveListBaseTraits<ScopedRangeLock>::ListType;
+    LockList m_list;
+};
+
+class ScopedRangeLock : public Common::IntrusiveListBaseNode<ScopedRangeLock> {
+public:
+    explicit ScopedRangeLock(RangeMutex& mutex, u64 address, u64 size)
+        : m_mutex(mutex), m_address(address), m_size(size) {
+        if (m_size > 0) {
+            m_mutex.Lock(*this);
+        }
+    }
+    ~ScopedRangeLock() {
+        if (m_size > 0) {
+            m_mutex.Unlock(*this);
+        }
+    }
+
+    u64 GetAddress() const {
+        return m_address;
+    }
+
+    u64 GetSize() const {
+        return m_size;
+    }
+
+private:
+    RangeMutex& m_mutex;
+    const u64 m_address{};
+    const u64 m_size{};
+};
+
+inline void RangeMutex::Lock(ScopedRangeLock& l) {
+    std::unique_lock lk{m_mutex};
+    m_cv.wait(lk, [&] { return !HasIntersectionLocked(l); });
+    m_list.push_back(l);
+}
+
+inline void RangeMutex::Unlock(ScopedRangeLock& l) {
+    {
+        std::scoped_lock lk{m_mutex};
+        m_list.erase(m_list.iterator_to(l));
+    }
+    m_cv.notify_all();
+}
+
+inline bool RangeMutex::HasIntersectionLocked(ScopedRangeLock& l) {
+    const auto cur_begin = l.GetAddress();
+    const auto cur_last = l.GetAddress() + l.GetSize() - 1;
+
+    for (const auto& other : m_list) {
+        const auto other_begin = other.GetAddress();
+        const auto other_last = other.GetAddress() + other.GetSize() - 1;
+
+        if (cur_begin <= other_last && other_begin <= cur_last) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+} // namespace Common

src/common/settings.h

@@ -419,9 +419,16 @@ struct Values {
         linkage, false, "custom_rtc_enabled", Category::System, Specialization::Paired, true, true};
     SwitchableSetting<s64> custom_rtc{
         linkage, 0,    "custom_rtc",       Category::System, Specialization::Time,
-        true,    true, &custom_rtc_enabled};
-    // Set on game boot, reset on stop. Seconds difference between current time and `custom_rtc`
-    s64 custom_rtc_differential;
+        false,   true, &custom_rtc_enabled};
+    SwitchableSetting<s64, true> custom_rtc_offset{linkage,
+                                                   0,
+                                                   std::numeric_limits<int>::min(),
+                                                   std::numeric_limits<int>::max(),
+                                                   "custom_rtc_offset",
+                                                   Category::System,
+                                                   Specialization::Countable,
+                                                   true,
+                                                   true};
     SwitchableSetting<bool> rng_seed_enabled{
         linkage, false, "rng_seed_enabled", Category::System, Specialization::Paired, true, true};
     SwitchableSetting<u32> rng_seed{

src/common/time_zone.cpp

@@ -88,7 +88,17 @@ std::string FindSystemTimeZone() {
             LOG_ERROR(Common, "Time zone {} not handled, defaulting to hour offset.", tz_index);
         }
     }
-    return fmt::format("Etc/GMT{:s}{:d}", hours > 0 ? "-" : "+", std::abs(hours));
+
+    // For some reason the Etc/GMT times are reversed. GMT+6 contains -21600 as its offset,
+    // -6 hours instead of +6 hours, so these signs are purposefully reversed to fix it.
+    std::string postfix{""};
+    if (hours > 0) {
+        postfix = fmt::format("-{:d}", std::abs(hours));
+    } else if (hours < 0) {
+        postfix = fmt::format("+{:d}", std::abs(hours));
+    }
+
+    return fmt::format("Etc/GMT{:s}", postfix);
 }
 
 } // namespace Common::TimeZone

src/common/uuid.h

@@ -12,9 +12,8 @@
 namespace Common {
 
 struct UUID {
-    std::array<u8, 0x10> uuid{};
+    std::array<u8, 0x10> uuid;
 
-    /// Constructs an invalid UUID.
     constexpr UUID() = default;
 
     /// Constructs a UUID from a reference to a 128 bit array.
@@ -34,14 +33,6 @@ struct UUID {
      */
     explicit UUID(std::string_view uuid_string);
 
-    ~UUID() = default;
-
-    constexpr UUID(const UUID&) noexcept = default;
-    constexpr UUID(UUID&&) noexcept = default;
-
-    constexpr UUID& operator=(const UUID&) noexcept = default;
-    constexpr UUID& operator=(UUID&&) noexcept = default;
-
     /**
      * Returns whether the stored UUID is valid or not.
      *
@@ -121,6 +112,7 @@ struct UUID {
     friend constexpr bool operator==(const UUID& lhs, const UUID& rhs) = default;
 };
 static_assert(sizeof(UUID) == 0x10, "UUID has incorrect size.");
+static_assert(std::is_trivial_v<UUID>);
 
 /// An invalid UUID. This UUID has all its bytes set to 0.
 constexpr UUID InvalidUUID = {};

src/common/wall_clock.cpp

@@ -18,42 +18,40 @@ namespace Common {
 
 class StandardWallClock final : public WallClock {
 public:
-    explicit StandardWallClock() : start_time{SteadyClock::Now()} {}
+    explicit StandardWallClock() {}
 
     std::chrono::nanoseconds GetTimeNS() const override {
-        return SteadyClock::Now() - start_time;
+        return std::chrono::duration_cast<std::chrono::nanoseconds>(
+            std::chrono::system_clock::now().time_since_epoch());
     }
 
     std::chrono::microseconds GetTimeUS() const override {
-        return static_cast<std::chrono::microseconds>(GetHostTicksElapsed() / NsToUsRatio::den);
+        return std::chrono::duration_cast<std::chrono::microseconds>(
+            std::chrono::system_clock::now().time_since_epoch());
     }
 
     std::chrono::milliseconds GetTimeMS() const override {
-        return static_cast<std::chrono::milliseconds>(GetHostTicksElapsed() / NsToMsRatio::den);
+        return std::chrono::duration_cast<std::chrono::milliseconds>(
+            std::chrono::system_clock::now().time_since_epoch());
     }
 
-    u64 GetCNTPCT() const override {
-        return GetHostTicksElapsed() * NsToCNTPCTRatio::num / NsToCNTPCTRatio::den;
+    s64 GetCNTPCT() const override {
+        return GetUptime() * NsToCNTPCTRatio::num / NsToCNTPCTRatio::den;
     }
 
-    u64 GetGPUTick() const override {
-        return GetHostTicksElapsed() * NsToGPUTickRatio::num / NsToGPUTickRatio::den;
+    s64 GetGPUTick() const override {
+        return GetUptime() * NsToGPUTickRatio::num / NsToGPUTickRatio::den;
     }
 
-    u64 GetHostTicksNow() const override {
-        return static_cast<u64>(SteadyClock::Now().time_since_epoch().count());
-    }
-
-    u64 GetHostTicksElapsed() const override {
-        return static_cast<u64>(GetTimeNS().count());
+    s64 GetUptime() const override {
+        return std::chrono::duration_cast<std::chrono::nanoseconds>(
+                   std::chrono::steady_clock::now().time_since_epoch())
+            .count();
     }
 
     bool IsNative() const override {
         return false;
     }
-
-private:
-    SteadyClock::time_point start_time;
 };
 
 std::unique_ptr<WallClock> CreateOptimalClock() {

src/common/wall_clock.h

@@ -29,16 +29,13 @@ public:
     virtual std::chrono::milliseconds GetTimeMS() const = 0;
 
     /// @returns The guest CNTPCT ticks since the construction of this clock.
-    virtual u64 GetCNTPCT() const = 0;
+    virtual s64 GetCNTPCT() const = 0;
 
     /// @returns The guest GPU ticks since the construction of this clock.
-    virtual u64 GetGPUTick() const = 0;
+    virtual s64 GetGPUTick() const = 0;
 
     /// @returns The raw host timer ticks since an indeterminate epoch.
-    virtual u64 GetHostTicksNow() const = 0;
-
-    /// @returns The raw host timer ticks since the construction of this clock.
-    virtual u64 GetHostTicksElapsed() const = 0;
+    virtual s64 GetUptime() const = 0;
 
     /// @returns Whether the clock directly uses the host's hardware clock.
     virtual bool IsNative() const = 0;

src/common/x64/native_clock.cpp

@@ -8,39 +8,35 @@
 namespace Common::X64 {
 
 NativeClock::NativeClock(u64 rdtsc_frequency_)
-    : start_ticks{FencedRDTSC()}, rdtsc_frequency{rdtsc_frequency_},
-      ns_rdtsc_factor{GetFixedPoint64Factor(NsRatio::den, rdtsc_frequency)},
+    : rdtsc_frequency{rdtsc_frequency_}, ns_rdtsc_factor{GetFixedPoint64Factor(NsRatio::den,
+                                                                               rdtsc_frequency)},
       us_rdtsc_factor{GetFixedPoint64Factor(UsRatio::den, rdtsc_frequency)},
       ms_rdtsc_factor{GetFixedPoint64Factor(MsRatio::den, rdtsc_frequency)},
       cntpct_rdtsc_factor{GetFixedPoint64Factor(CNTFRQ, rdtsc_frequency)},
       gputick_rdtsc_factor{GetFixedPoint64Factor(GPUTickFreq, rdtsc_frequency)} {}
 
 std::chrono::nanoseconds NativeClock::GetTimeNS() const {
-    return std::chrono::nanoseconds{MultiplyHigh(GetHostTicksElapsed(), ns_rdtsc_factor)};
+    return std::chrono::nanoseconds{MultiplyHigh(GetUptime(), ns_rdtsc_factor)};
 }
 
 std::chrono::microseconds NativeClock::GetTimeUS() const {
-    return std::chrono::microseconds{MultiplyHigh(GetHostTicksElapsed(), us_rdtsc_factor)};
+    return std::chrono::microseconds{MultiplyHigh(GetUptime(), us_rdtsc_factor)};
 }
 
 std::chrono::milliseconds NativeClock::GetTimeMS() const {
-    return std::chrono::milliseconds{MultiplyHigh(GetHostTicksElapsed(), ms_rdtsc_factor)};
+    return std::chrono::milliseconds{MultiplyHigh(GetUptime(), ms_rdtsc_factor)};
 }
 
-u64 NativeClock::GetCNTPCT() const {
-    return MultiplyHigh(GetHostTicksElapsed(), cntpct_rdtsc_factor);
+s64 NativeClock::GetCNTPCT() const {
+    return MultiplyHigh(GetUptime(), cntpct_rdtsc_factor);
 }
 
-u64 NativeClock::GetGPUTick() const {
-    return MultiplyHigh(GetHostTicksElapsed(), gputick_rdtsc_factor);
+s64 NativeClock::GetGPUTick() const {
+    return MultiplyHigh(GetUptime(), gputick_rdtsc_factor);
 }
 
-u64 NativeClock::GetHostTicksNow() const {
-    return FencedRDTSC();
-}
-
-u64 NativeClock::GetHostTicksElapsed() const {
-    return FencedRDTSC() - start_ticks;
+s64 NativeClock::GetUptime() const {
+    return static_cast<s64>(FencedRDTSC());
 }
 
 bool NativeClock::IsNative() const {

src/common/x64/native_clock.h

@@ -17,18 +17,15 @@ public:
 
     std::chrono::milliseconds GetTimeMS() const override;
 
-    u64 GetCNTPCT() const override;
+    s64 GetCNTPCT() const override;
 
-    u64 GetGPUTick() const override;
+    s64 GetGPUTick() const override;
 
-    u64 GetHostTicksNow() const override;
-
-    u64 GetHostTicksElapsed() const override;
+    s64 GetUptime() const override;
 
     bool IsNative() const override;
 
 private:
-    u64 start_ticks;
     u64 rdtsc_frequency;
 
     u64 ns_rdtsc_factor;

src/core/CMakeLists.txt

@@ -20,28 +20,49 @@ add_library(core STATIC
     cpu_manager.h
     crypto/aes_util.cpp
     crypto/aes_util.h
+    crypto/ctr_encryption_layer.cpp
+    crypto/ctr_encryption_layer.h
     crypto/encryption_layer.cpp
     crypto/encryption_layer.h
     crypto/key_manager.cpp
     crypto/key_manager.h
     crypto/partition_data_manager.cpp
     crypto/partition_data_manager.h
-    crypto/ctr_encryption_layer.cpp
-    crypto/ctr_encryption_layer.h
     crypto/xts_encryption_layer.cpp
     crypto/xts_encryption_layer.h
-    debugger/debugger_interface.h
     debugger/debugger.cpp
     debugger/debugger.h
-    debugger/gdbstub_arch.cpp
-    debugger/gdbstub_arch.h
+    debugger/debugger_interface.h
     debugger/gdbstub.cpp
     debugger/gdbstub.h
+    debugger/gdbstub_arch.cpp
+    debugger/gdbstub_arch.h
     device_memory_manager.h
     device_memory_manager.inc
     device_memory.cpp
     device_memory.h
+    file_sys/bis_factory.cpp
+    file_sys/bis_factory.h
+    file_sys/card_image.cpp
+    file_sys/card_image.h
+    file_sys/common_funcs.h
+    file_sys/content_archive.cpp
+    file_sys/content_archive.h
+    file_sys/control_metadata.cpp
+    file_sys/control_metadata.h
+    file_sys/errors.h
+    file_sys/fs_directory.h
+    file_sys/fs_file.h
+    file_sys/fs_filesystem.h
+    file_sys/fs_memory_management.h
+    file_sys/fs_operate_range.h
+    file_sys/fs_path.h
+    file_sys/fs_path_utility.h
+    file_sys/fs_string_util.h
+    file_sys/fsmitm_romfsbuild.cpp
+    file_sys/fsmitm_romfsbuild.h
     file_sys/fssystem/fs_i_storage.h
+    file_sys/fssystem/fs_types.h
     file_sys/fssystem/fssystem_aes_ctr_counter_extended_storage.cpp
     file_sys/fssystem/fssystem_aes_ctr_counter_extended_storage.h
     file_sys/fssystem/fssystem_aes_ctr_storage.cpp
@@ -83,25 +104,10 @@ add_library(core STATIC
     file_sys/fssystem/fssystem_switch_storage.h
     file_sys/fssystem/fssystem_utility.cpp
     file_sys/fssystem/fssystem_utility.h
-    file_sys/fssystem/fs_types.h
-    file_sys/bis_factory.cpp
-    file_sys/bis_factory.h
-    file_sys/card_image.cpp
-    file_sys/card_image.h
-    file_sys/common_funcs.h
-    file_sys/content_archive.cpp
-    file_sys/content_archive.h
-    file_sys/control_metadata.cpp
-    file_sys/control_metadata.h
-    file_sys/directory.h
-    file_sys/errors.h
-    file_sys/fsmitm_romfsbuild.cpp
-    file_sys/fsmitm_romfsbuild.h
     file_sys/ips_layer.cpp
     file_sys/ips_layer.h
     file_sys/kernel_executable.cpp
     file_sys/kernel_executable.h
-    file_sys/mode.h
     file_sys/nca_metadata.cpp
     file_sys/nca_metadata.h
     file_sys/partition_filesystem.cpp
@@ -146,22 +152,22 @@ add_library(core STATIC
     file_sys/system_archive/system_version.h
     file_sys/system_archive/time_zone_binary.cpp
     file_sys/system_archive/time_zone_binary.h
-    file_sys/vfs.cpp
-    file_sys/vfs.h
-    file_sys/vfs_cached.cpp
-    file_sys/vfs_cached.h
-    file_sys/vfs_concat.cpp
-    file_sys/vfs_concat.h
-    file_sys/vfs_layered.cpp
-    file_sys/vfs_layered.h
-    file_sys/vfs_offset.cpp
-    file_sys/vfs_offset.h
-    file_sys/vfs_real.cpp
-    file_sys/vfs_real.h
-    file_sys/vfs_static.h
-    file_sys/vfs_types.h
-    file_sys/vfs_vector.cpp
-    file_sys/vfs_vector.h
+    file_sys/vfs/vfs.cpp
+    file_sys/vfs/vfs.h
+    file_sys/vfs/vfs_cached.cpp
+    file_sys/vfs/vfs_cached.h
+    file_sys/vfs/vfs_concat.cpp
+    file_sys/vfs/vfs_concat.h
+    file_sys/vfs/vfs_layered.cpp
+    file_sys/vfs/vfs_layered.h
+    file_sys/vfs/vfs_offset.cpp
+    file_sys/vfs/vfs_offset.h
+    file_sys/vfs/vfs_real.cpp
+    file_sys/vfs/vfs_real.h
+    file_sys/vfs/vfs_static.h
+    file_sys/vfs/vfs_types.h
+    file_sys/vfs/vfs_vector.cpp
+    file_sys/vfs/vfs_vector.h
     file_sys/xts_archive.cpp
     file_sys/xts_archive.h
     frontend/applets/cabinet.cpp
@@ -170,8 +176,8 @@ add_library(core STATIC
     frontend/applets/controller.h
     frontend/applets/error.cpp
     frontend/applets/error.h
-    frontend/applets/general_frontend.cpp
-    frontend/applets/general_frontend.h
+    frontend/applets/general.cpp
+    frontend/applets/general.h
     frontend/applets/mii_edit.cpp
     frontend/applets/mii_edit.h
     frontend/applets/profile_select.cpp
@@ -194,7 +200,6 @@ add_library(core STATIC
     hle/kernel/board/nintendo/nx/secure_monitor.h
     hle/kernel/code_set.cpp
     hle/kernel/code_set.h
-    hle/kernel/svc_results.h
     hle/kernel/global_scheduler_context.cpp
     hle/kernel/global_scheduler_context.h
     hle/kernel/init/init_slab_setup.cpp
@@ -204,11 +209,11 @@ add_library(core STATIC
     hle/kernel/k_address_arbiter.h
     hle/kernel/k_address_space_info.cpp
     hle/kernel/k_address_space_info.h
+    hle/kernel/k_affinity_mask.h
     hle/kernel/k_auto_object.cpp
     hle/kernel/k_auto_object.h
     hle/kernel/k_auto_object_container.cpp
     hle/kernel/k_auto_object_container.h
-    hle/kernel/k_affinity_mask.h
     hle/kernel/k_capabilities.cpp
     hle/kernel/k_capabilities.h
     hle/kernel/k_class_token.cpp
@@ -232,9 +237,9 @@ add_library(core STATIC
     hle/kernel/k_event_info.h
     hle/kernel/k_handle_table.cpp
     hle/kernel/k_handle_table.h
-    hle/kernel/k_hardware_timer_base.h
     hle/kernel/k_hardware_timer.cpp
     hle/kernel/k_hardware_timer.h
+    hle/kernel/k_hardware_timer_base.h
     hle/kernel/k_interrupt_manager.cpp
     hle/kernel/k_interrupt_manager.h
     hle/kernel/k_light_client_session.cpp
@@ -261,10 +266,10 @@ add_library(core STATIC
     hle/kernel/k_page_bitmap.h
     hle/kernel/k_page_buffer.cpp
     hle/kernel/k_page_buffer.h
-    hle/kernel/k_page_heap.cpp
-    hle/kernel/k_page_heap.h
     hle/kernel/k_page_group.cpp
     hle/kernel/k_page_group.h
+    hle/kernel/k_page_heap.cpp
+    hle/kernel/k_page_heap.h
     hle/kernel/k_page_table.h
     hle/kernel/k_page_table_base.cpp
     hle/kernel/k_page_table_base.h
@@ -329,8 +334,6 @@ add_library(core STATIC
     hle/kernel/slab_helpers.h
     hle/kernel/svc.cpp
     hle/kernel/svc.h
-    hle/kernel/svc_common.h
-    hle/kernel/svc_types.h
     hle/kernel/svc/svc_activity.cpp
     hle/kernel/svc/svc_address_arbiter.cpp
     hle/kernel/svc/svc_address_translation.cpp
@@ -368,6 +371,9 @@ add_library(core STATIC
     hle/kernel/svc/svc_thread_profiler.cpp
     hle/kernel/svc/svc_tick.cpp
     hle/kernel/svc/svc_transfer_memory.cpp
+    hle/kernel/svc_common.h
+    hle/kernel/svc_results.h
+    hle/kernel/svc_types.h
     hle/result.h
     hle/service/acc/acc.cpp
     hle/service/acc/acc.h
@@ -384,39 +390,101 @@ add_library(core STATIC
     hle/service/acc/errors.h
     hle/service/acc/profile_manager.cpp
     hle/service/acc/profile_manager.h
+    hle/service/am/frontend/applet_cabinet.cpp
+    hle/service/am/frontend/applet_cabinet.h
+    hle/service/am/frontend/applet_controller.cpp
+    hle/service/am/frontend/applet_controller.h
+    hle/service/am/frontend/applet_error.cpp
+    hle/service/am/frontend/applet_error.h
+    hle/service/am/frontend/applet_general.cpp
+    hle/service/am/frontend/applet_general.h
+    hle/service/am/frontend/applet_mii_edit.cpp
+    hle/service/am/frontend/applet_mii_edit.h
+    hle/service/am/frontend/applet_mii_edit_types.h
+    hle/service/am/frontend/applet_profile_select.cpp
+    hle/service/am/frontend/applet_profile_select.h
+    hle/service/am/frontend/applet_software_keyboard.cpp
+    hle/service/am/frontend/applet_software_keyboard.h
+    hle/service/am/frontend/applet_software_keyboard_types.h
+    hle/service/am/frontend/applet_web_browser.cpp
+    hle/service/am/frontend/applet_web_browser.h
+    hle/service/am/frontend/applet_web_browser_types.h
+    hle/service/am/frontend/applets.cpp
+    hle/service/am/frontend/applets.h
     hle/service/am/am.cpp
     hle/service/am/am.h
+    hle/service/am/am_results.h
+    hle/service/am/am_types.h
+    hle/service/am/applet.cpp
+    hle/service/am/applet.h
     hle/service/am/applet_ae.cpp
     hle/service/am/applet_ae.h
+    hle/service/am/applet_manager.cpp
+    hle/service/am/applet_data_broker.cpp
+    hle/service/am/applet_data_broker.h
+    hle/service/am/applet_manager.h
     hle/service/am/applet_oe.cpp
     hle/service/am/applet_oe.h
-    hle/service/am/applets/applet_cabinet.cpp
-    hle/service/am/applets/applet_cabinet.h
-    hle/service/am/applets/applet_controller.cpp
-    hle/service/am/applets/applet_controller.h
-    hle/service/am/applets/applet_error.cpp
-    hle/service/am/applets/applet_error.h
-    hle/service/am/applets/applet_general_backend.cpp
-    hle/service/am/applets/applet_general_backend.h
-    hle/service/am/applets/applet_mii_edit.cpp
-    hle/service/am/applets/applet_mii_edit.h
-    hle/service/am/applets/applet_mii_edit_types.h
-    hle/service/am/applets/applet_profile_select.cpp
-    hle/service/am/applets/applet_profile_select.h
-    hle/service/am/applets/applet_software_keyboard.cpp
-    hle/service/am/applets/applet_software_keyboard.h
-    hle/service/am/applets/applet_software_keyboard_types.h
-    hle/service/am/applets/applet_web_browser.cpp
-    hle/service/am/applets/applet_web_browser.h
-    hle/service/am/applets/applet_web_browser_types.h
-    hle/service/am/applets/applets.cpp
-    hle/service/am/applets/applets.h
+    hle/service/am/applet_common_functions.cpp
+    hle/service/am/applet_common_functions.h
+    hle/service/am/applet_message_queue.cpp
+    hle/service/am/applet_message_queue.h
+    hle/service/am/application_creator.cpp
+    hle/service/am/application_creator.h
+    hle/service/am/application_functions.cpp
+    hle/service/am/application_functions.h
+    hle/service/am/application_proxy.cpp
+    hle/service/am/application_proxy.h
+    hle/service/am/audio_controller.cpp
+    hle/service/am/audio_controller.h
+    hle/service/am/common_state_getter.cpp
+    hle/service/am/common_state_getter.h
+    hle/service/am/debug_functions.cpp
+    hle/service/am/debug_functions.h
+    hle/service/am/display_controller.cpp
+    hle/service/am/display_controller.h
+    hle/service/am/global_state_controller.cpp
+    hle/service/am/global_state_controller.h
+    hle/service/am/hid_registration.cpp
+    hle/service/am/hid_registration.h
+    hle/service/am/home_menu_functions.cpp
+    hle/service/am/home_menu_functions.h
     hle/service/am/idle.cpp
     hle/service/am/idle.h
+    hle/service/am/library_applet_accessor.cpp
+    hle/service/am/library_applet_accessor.h
+    hle/service/am/library_applet_creator.cpp
+    hle/service/am/library_applet_creator.h
+    hle/service/am/library_applet_proxy.cpp
+    hle/service/am/library_applet_proxy.h
+    hle/service/am/library_applet_self_accessor.cpp
+    hle/service/am/library_applet_self_accessor.h
+    hle/service/am/library_applet_storage.cpp
+    hle/service/am/library_applet_storage.h
+    hle/service/am/lock_accessor.cpp
+    hle/service/am/lock_accessor.h
+    hle/service/am/managed_layer_holder.cpp
+    hle/service/am/managed_layer_holder.h
     hle/service/am/omm.cpp
     hle/service/am/omm.h
+    hle/service/am/process_winding_controller.cpp
+    hle/service/am/process_winding_controller.h
+    hle/service/am/process.cpp
+    hle/service/am/process.h
+    hle/service/am/self_controller.cpp
+    hle/service/am/self_controller.h
+    hle/service/am/system_applet_proxy.cpp
+    hle/service/am/system_applet_proxy.h
+    hle/service/am/system_buffer_manager.cpp
+    hle/service/am/system_buffer_manager.h
     hle/service/am/spsm.cpp
     hle/service/am/spsm.h
+    hle/service/am/storage_accessor.cpp
+    hle/service/am/storage_accessor.h
+    hle/service/am/storage.cpp
+    hle/service/am/storage.h
+    hle/service/am/window_controller.cpp
+    hle/service/am/window_controller.h
     hle/service/aoc/aoc_u.cpp
     hle/service/aoc/aoc_u.h
     hle/service/apm/apm.cpp
@@ -472,26 +540,41 @@ add_library(core STATIC
     hle/service/caps/caps_types.h
     hle/service/caps/caps_u.cpp
     hle/service/caps/caps_u.h
+    hle/service/cmif_serialization.h
+    hle/service/cmif_types.h
     hle/service/erpt/erpt.cpp
     hle/service/erpt/erpt.h
     hle/service/es/es.cpp
     hle/service/es/es.h
     hle/service/eupld/eupld.cpp
     hle/service/eupld/eupld.h
+    hle/service/event.cpp
+    hle/service/event.h
     hle/service/fatal/fatal.cpp
     hle/service/fatal/fatal.h
     hle/service/fatal/fatal_p.cpp
     hle/service/fatal/fatal_p.h
     hle/service/fatal/fatal_u.cpp
     hle/service/fatal/fatal_u.h
+    hle/service/fgm/fgm.cpp
+    hle/service/fgm/fgm.h
     hle/service/filesystem/filesystem.cpp
     hle/service/filesystem/filesystem.h
-    hle/service/filesystem/fsp_ldr.cpp
-    hle/service/filesystem/fsp_ldr.h
-    hle/service/filesystem/fsp_pr.cpp
-    hle/service/filesystem/fsp_pr.h
-    hle/service/filesystem/fsp_srv.cpp
-    hle/service/filesystem/fsp_srv.h
+    hle/service/filesystem/fsp/fs_i_directory.cpp
+    hle/service/filesystem/fsp/fs_i_directory.h
+    hle/service/filesystem/fsp/fs_i_file.cpp
+    hle/service/filesystem/fsp/fs_i_file.h
+    hle/service/filesystem/fsp/fs_i_filesystem.cpp
+    hle/service/filesystem/fsp/fs_i_filesystem.h
+    hle/service/filesystem/fsp/fs_i_storage.cpp
+    hle/service/filesystem/fsp/fs_i_storage.h
+    hle/service/filesystem/fsp/fsp_ldr.cpp
+    hle/service/filesystem/fsp/fsp_ldr.h
+    hle/service/filesystem/fsp/fsp_pr.cpp
+    hle/service/filesystem/fsp/fsp_pr.h
+    hle/service/filesystem/fsp/fsp_srv.cpp
+    hle/service/filesystem/fsp/fsp_srv.h
+    hle/service/filesystem/fsp/fsp_util.h
     hle/service/filesystem/romfs_controller.cpp
     hle/service/filesystem/romfs_controller.h
     hle/service/filesystem/save_data_controller.cpp
@@ -515,6 +598,24 @@ add_library(core STATIC
     hle/service/glue/glue_manager.h
     hle/service/glue/notif.cpp
     hle/service/glue/notif.h
+    hle/service/glue/time/alarm_worker.cpp
+    hle/service/glue/time/alarm_worker.h
+    hle/service/glue/time/file_timestamp_worker.cpp
+    hle/service/glue/time/file_timestamp_worker.h
+    hle/service/glue/time/manager.cpp
+    hle/service/glue/time/manager.h
+    hle/service/glue/time/pm_state_change_handler.cpp
+    hle/service/glue/time/pm_state_change_handler.h
+    hle/service/glue/time/standard_steady_clock_resource.cpp
+    hle/service/glue/time/standard_steady_clock_resource.h
+    hle/service/glue/time/static.cpp
+    hle/service/glue/time/static.h
+    hle/service/glue/time/time_zone.cpp
+    hle/service/glue/time/time_zone.h
+    hle/service/glue/time/time_zone_binary.cpp
+    hle/service/glue/time/time_zone_binary.h
+    hle/service/glue/time/worker.cpp
+    hle/service/glue/time/worker.h
     hle/service/grc/grc.cpp
     hle/service/grc/grc.h
     hle/service/hid/hid.cpp
@@ -531,13 +632,18 @@ add_library(core STATIC
     hle/service/hid/irs.h
     hle/service/hid/xcd.cpp
     hle/service/hid/xcd.h
+    hle/service/hle_ipc.cpp
+    hle/service/hle_ipc.h
+    hle/service/ipc_helpers.h
+    hle/service/kernel_helpers.cpp
+    hle/service/kernel_helpers.h
     hle/service/lbl/lbl.cpp
     hle/service/lbl/lbl.h
     hle/service/ldn/lan_discovery.cpp
     hle/service/ldn/lan_discovery.h
-    hle/service/ldn/ldn_results.h
     hle/service/ldn/ldn.cpp
     hle/service/ldn/ldn.h
+    hle/service/ldn/ldn_results.h
     hle/service/ldn/ldn_types.h
     hle/service/ldr/ldr.cpp
     hle/service/ldr/ldr.h
@@ -545,16 +651,6 @@ add_library(core STATIC
     hle/service/lm/lm.h
     hle/service/mig/mig.cpp
     hle/service/mig/mig.h
-    hle/service/mii/types/char_info.cpp
-    hle/service/mii/types/char_info.h
-    hle/service/mii/types/core_data.cpp
-    hle/service/mii/types/core_data.h
-    hle/service/mii/types/raw_data.cpp
-    hle/service/mii/types/raw_data.h
-    hle/service/mii/types/store_data.cpp
-    hle/service/mii/types/store_data.h
-    hle/service/mii/types/ver3_store_data.cpp
-    hle/service/mii/types/ver3_store_data.h
     hle/service/mii/mii.cpp
     hle/service/mii/mii.h
     hle/service/mii/mii_database.cpp
@@ -566,10 +662,22 @@ add_library(core STATIC
     hle/service/mii/mii_result.h
     hle/service/mii/mii_types.h
     hle/service/mii/mii_util.h
+    hle/service/mii/types/char_info.cpp
+    hle/service/mii/types/char_info.h
+    hle/service/mii/types/core_data.cpp
+    hle/service/mii/types/core_data.h
+    hle/service/mii/types/raw_data.cpp
+    hle/service/mii/types/raw_data.h
+    hle/service/mii/types/store_data.cpp
+    hle/service/mii/types/store_data.h
+    hle/service/mii/types/ver3_store_data.cpp
+    hle/service/mii/types/ver3_store_data.h
     hle/service/mm/mm_u.cpp
     hle/service/mm/mm_u.h
     hle/service/mnpp/mnpp_app.cpp
     hle/service/mnpp/mnpp_app.h
+    hle/service/mutex.cpp
+    hle/service/mutex.h
     hle/service/ncm/ncm.cpp
     hle/service/ncm/ncm.h
     hle/service/nfc/common/amiibo_crypto.cpp
@@ -693,25 +801,58 @@ add_library(core STATIC
     hle/service/prepo/prepo.h
     hle/service/psc/psc.cpp
     hle/service/psc/psc.h
+    hle/service/psc/time/alarms.cpp
+    hle/service/psc/time/alarms.h
+    hle/service/psc/time/clocks/context_writers.cpp
+    hle/service/psc/time/clocks/context_writers.h
+    hle/service/psc/time/clocks/ephemeral_network_system_clock_core.h
+    hle/service/psc/time/clocks/standard_local_system_clock_core.cpp
+    hle/service/psc/time/clocks/standard_local_system_clock_core.h
+    hle/service/psc/time/clocks/standard_network_system_clock_core.cpp
+    hle/service/psc/time/clocks/standard_network_system_clock_core.h
+    hle/service/psc/time/clocks/standard_steady_clock_core.cpp
+    hle/service/psc/time/clocks/standard_steady_clock_core.h
+    hle/service/psc/time/clocks/standard_user_system_clock_core.cpp
+    hle/service/psc/time/clocks/standard_user_system_clock_core.h
+    hle/service/psc/time/clocks/steady_clock_core.h
+    hle/service/psc/time/clocks/system_clock_core.cpp
+    hle/service/psc/time/clocks/system_clock_core.h
+    hle/service/psc/time/clocks/tick_based_steady_clock_core.cpp
+    hle/service/psc/time/clocks/tick_based_steady_clock_core.h
+    hle/service/psc/time/common.cpp
+    hle/service/psc/time/common.h
+    hle/service/psc/time/errors.h
+    hle/service/psc/time/shared_memory.cpp
+    hle/service/psc/time/shared_memory.h
+    hle/service/psc/time/static.cpp
+    hle/service/psc/time/static.h
+    hle/service/psc/time/manager.h
+    hle/service/psc/time/power_state_service.cpp
+    hle/service/psc/time/power_state_service.h
+    hle/service/psc/time/service_manager.cpp
+    hle/service/psc/time/service_manager.h
+    hle/service/psc/time/steady_clock.cpp
+    hle/service/psc/time/steady_clock.h
+    hle/service/psc/time/system_clock.cpp
+    hle/service/psc/time/system_clock.h
+    hle/service/psc/time/time_zone.cpp
+    hle/service/psc/time/time_zone.h
+    hle/service/psc/time/time_zone_service.cpp
+    hle/service/psc/time/time_zone_service.h
+    hle/service/psc/time/power_state_request_manager.cpp
+    hle/service/psc/time/power_state_request_manager.h
     hle/service/ptm/psm.cpp
     hle/service/ptm/psm.h
     hle/service/ptm/ptm.cpp
     hle/service/ptm/ptm.h
     hle/service/ptm/ts.cpp
     hle/service/ptm/ts.h
-    hle/service/hle_ipc.cpp
-    hle/service/hle_ipc.h
-    hle/service/ipc_helpers.h
-    hle/service/kernel_helpers.cpp
-    hle/service/kernel_helpers.h
-    hle/service/mutex.cpp
-    hle/service/mutex.h
+    hle/service/ro/ro.cpp
+    hle/service/ro/ro.h
     hle/service/ro/ro_nro_utils.cpp
     hle/service/ro/ro_nro_utils.h
     hle/service/ro/ro_results.h
     hle/service/ro/ro_types.h
-    hle/service/ro/ro.cpp
-    hle/service/ro/ro.h
     hle/service/server_manager.cpp
     hle/service/server_manager.h
     hle/service/service.cpp
@@ -760,40 +901,6 @@ add_library(core STATIC
     hle/service/ssl/ssl.cpp
     hle/service/ssl/ssl.h
     hle/service/ssl/ssl_backend.h
-    hle/service/time/clock_types.h
-    hle/service/time/ephemeral_network_system_clock_context_writer.h
-    hle/service/time/ephemeral_network_system_clock_core.h
-    hle/service/time/errors.h
-    hle/service/time/local_system_clock_context_writer.h
-    hle/service/time/network_system_clock_context_writer.h
-    hle/service/time/standard_local_system_clock_core.h
-    hle/service/time/standard_network_system_clock_core.h
-    hle/service/time/standard_steady_clock_core.cpp
-    hle/service/time/standard_steady_clock_core.h
-    hle/service/time/standard_user_system_clock_core.cpp
-    hle/service/time/standard_user_system_clock_core.h
-    hle/service/time/steady_clock_core.h
-    hle/service/time/system_clock_context_update_callback.cpp
-    hle/service/time/system_clock_context_update_callback.h
-    hle/service/time/system_clock_core.cpp
-    hle/service/time/system_clock_core.h
-    hle/service/time/tick_based_steady_clock_core.cpp
-    hle/service/time/tick_based_steady_clock_core.h
-    hle/service/time/time.cpp
-    hle/service/time/time.h
-    hle/service/time/time_interface.cpp
-    hle/service/time/time_interface.h
-    hle/service/time/time_manager.cpp
-    hle/service/time/time_manager.h
-    hle/service/time/time_sharedmemory.cpp
-    hle/service/time/time_sharedmemory.h
-    hle/service/time/time_zone_content_manager.cpp
-    hle/service/time/time_zone_content_manager.h
-    hle/service/time/time_zone_manager.cpp
-    hle/service/time/time_zone_manager.h
-    hle/service/time/time_zone_service.cpp
-    hle/service/time/time_zone_service.h
-    hle/service/time/time_zone_types.h
     hle/service/usb/usb.cpp
     hle/service/usb/usb.h
     hle/service/vi/display/vi_display.cpp
@@ -812,9 +919,9 @@ add_library(core STATIC
     internal_network/network.h
     internal_network/network_interface.cpp
     internal_network/network_interface.h
-    internal_network/sockets.h
     internal_network/socket_proxy.cpp
     internal_network/socket_proxy.h
+    internal_network/sockets.h
     loader/deconstructed_rom_directory.cpp
     loader/deconstructed_rom_directory.h
     loader/kip.cpp
@@ -833,13 +940,13 @@ add_library(core STATIC
     loader/nsp.h
     loader/xci.cpp
     loader/xci.h
+    memory.cpp
+    memory.h
     memory/cheat_engine.cpp
     memory/cheat_engine.h
     memory/dmnt_cheat_types.h
     memory/dmnt_cheat_vm.cpp
     memory/dmnt_cheat_vm.h
-    memory.cpp
-    memory.h
     perf_stats.cpp
     perf_stats.h
     precompiled_headers.h
@@ -874,7 +981,7 @@ endif()
 
 create_target_directory_groups(core)
 
-target_link_libraries(core PUBLIC common PRIVATE audio_core hid_core network video_core nx_tzdb)
+target_link_libraries(core PUBLIC common PRIVATE audio_core hid_core network video_core nx_tzdb tz)
 target_link_libraries(core PUBLIC Boost::headers PRIVATE fmt::fmt nlohmann_json::nlohmann_json mbedtls RenderDoc::API)
 if (MINGW)
     target_link_libraries(core PRIVATE ${MSWSOCK_LIBRARY})

src/core/core.cpp

@@ -21,13 +21,13 @@
 #include "core/debugger/debugger.h"
 #include "core/device_memory.h"
 #include "core/file_sys/bis_factory.h"
-#include "core/file_sys/mode.h"
+#include "core/file_sys/fs_filesystem.h"
 #include "core/file_sys/patch_manager.h"
 #include "core/file_sys/registered_cache.h"
 #include "core/file_sys/romfs_factory.h"
 #include "core/file_sys/savedata_factory.h"
-#include "core/file_sys/vfs_concat.h"
-#include "core/file_sys/vfs_real.h"
+#include "core/file_sys/vfs/vfs_concat.h"
+#include "core/file_sys/vfs/vfs_real.h"
 #include "core/gpu_dirty_memory_manager.h"
 #include "core/hle/kernel/k_memory_manager.h"
 #include "core/hle/kernel/k_process.h"
@@ -36,13 +36,19 @@
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/physical_core.h"
 #include "core/hle/service/acc/profile_manager.h"
-#include "core/hle/service/am/applets/applets.h"
+#include "core/hle/service/am/applet_manager.h"
+#include "core/hle/service/am/frontend/applets.h"
 #include "core/hle/service/apm/apm_controller.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/glue/glue_manager.h"
+#include "core/hle/service/glue/time/static.h"
+#include "core/hle/service/psc/time/static.h"
+#include "core/hle/service/psc/time/steady_clock.h"
+#include "core/hle/service/psc/time/system_clock.h"
+#include "core/hle/service/psc/time/time_zone_service.h"
 #include "core/hle/service/service.h"
+#include "core/hle/service/set/system_settings_server.h"
 #include "core/hle/service/sm/sm.h"
-#include "core/hle/service/time/time_manager.h"
 #include "core/internal_network/network.h"
 #include "core/loader/loader.h"
 #include "core/memory.h"
@@ -97,7 +103,7 @@ FileSys::VirtualFile GetGameFileFromPath(const FileSys::VirtualFilesystem& vfs,
     Common::SplitPath(path, &dir_name, &filename, nullptr);
 
     if (filename == "00") {
-        const auto dir = vfs->OpenDirectory(dir_name, FileSys::Mode::Read);
+        const auto dir = vfs->OpenDirectory(dir_name, FileSys::OpenMode::Read);
         std::vector<FileSys::VirtualFile> concat;
 
         for (u32 i = 0; i < 0x10; ++i) {
@@ -122,16 +128,16 @@ FileSys::VirtualFile GetGameFileFromPath(const FileSys::VirtualFilesystem& vfs,
     }
 
     if (Common::FS::IsDir(path)) {
-        return vfs->OpenFile(path + "/main", FileSys::Mode::Read);
+        return vfs->OpenFile(path + "/main", FileSys::OpenMode::Read);
     }
 
-    return vfs->OpenFile(path, FileSys::Mode::Read);
+    return vfs->OpenFile(path, FileSys::OpenMode::Read);
 }
 
 struct System::Impl {
     explicit Impl(System& system)
         : kernel{system}, fs_controller{system}, hid_core{}, room_network{}, cpu_manager{system},
-          reporter{system}, applet_manager{system}, profile_manager{}, time_manager{system} {}
+          reporter{system}, applet_manager{system}, frontend_applets{system}, profile_manager{} {}
 
     void Initialize(System& system) {
         device_memory = std::make_unique<Core::DeviceMemory>();
@@ -143,8 +149,6 @@ struct System::Impl {
         core_timing.SetMulticore(is_multicore);
         core_timing.Initialize([&system]() { system.RegisterHostThread(); });
 
-        RefreshTime();
-
         // Create a default fs if one doesn't already exist.
         if (virtual_filesystem == nullptr) {
             virtual_filesystem = std::make_shared<FileSys::RealVfsFilesystem>();
@@ -154,7 +158,7 @@ struct System::Impl {
         }
 
         // Create default implementations of applets if one is not provided.
-        applet_manager.SetDefaultAppletsIfMissing();
+        frontend_applets.SetDefaultAppletsIfMissing();
 
         is_async_gpu = Settings::values.use_asynchronous_gpu_emulation.GetValue();
 
@@ -182,14 +186,57 @@ struct System::Impl {
         Initialize(system);
     }
 
-    void RefreshTime() {
+    void RefreshTime(System& system) {
+        if (!system.IsPoweredOn()) {
+            return;
+        }
+
+        auto settings_service =
+            system.ServiceManager().GetService<Service::Set::ISystemSettingsServer>("set:sys",
+                                                                                    true);
+        auto static_service_a =
+            system.ServiceManager().GetService<Service::Glue::Time::StaticService>("time:a", true);
+
+        auto static_service_s =
+            system.ServiceManager().GetService<Service::PSC::Time::StaticService>("time:s", true);
+
+        std::shared_ptr<Service::PSC::Time::SystemClock> user_clock;
+        static_service_a->GetStandardUserSystemClock(user_clock);
+
+        std::shared_ptr<Service::PSC::Time::SystemClock> local_clock;
+        static_service_a->GetStandardLocalSystemClock(local_clock);
+
+        std::shared_ptr<Service::PSC::Time::SystemClock> network_clock;
+        static_service_s->GetStandardNetworkSystemClock(network_clock);
+
+        std::shared_ptr<Service::Glue::Time::TimeZoneService> timezone_service;
+        static_service_a->GetTimeZoneService(timezone_service);
+
+        Service::PSC::Time::LocationName name{};
+        auto new_name = Settings::GetTimeZoneString(Settings::values.time_zone_index.GetValue());
+        std::memcpy(name.name.data(), new_name.data(), std::min(name.name.size(), new_name.size()));
+
+        timezone_service->SetDeviceLocation(name);
+
+        u64 time_offset = 0;
+        if (Settings::values.custom_rtc_enabled) {
+            time_offset = Settings::values.custom_rtc_offset.GetValue();
+        }
+
         const auto posix_time = std::chrono::system_clock::now().time_since_epoch();
-        const auto current_time =
-            std::chrono::duration_cast<std::chrono::seconds>(posix_time).count();
-        Settings::values.custom_rtc_differential =
-            (Settings::values.custom_rtc_enabled ? Settings::values.custom_rtc.GetValue()
-                                                 : current_time) -
-            current_time;
+        const u64 current_time =
+            +std::chrono::duration_cast<std::chrono::seconds>(posix_time).count();
+        const u64 new_time = current_time + time_offset;
+
+        Service::PSC::Time::SystemClockContext context{};
+        settings_service->SetUserSystemClockContext(context);
+        user_clock->SetCurrentTime(new_time);
+
+        local_clock->SetCurrentTime(new_time);
+
+        network_clock->GetSystemClockContext(context);
+        settings_service->SetNetworkSystemClockContext(context);
+        network_clock->SetCurrentTime(new_time);
     }
 
     void Run() {
@@ -265,9 +312,6 @@ struct System::Impl {
         service_manager = std::make_shared<Service::SM::ServiceManager>(kernel);
         services = std::make_unique<Service::Services>(service_manager, system);
 
-        // Initialize time manager, which must happen after kernel is created
-        time_manager.Initialize();
-
         is_powered_on = true;
         exit_locked = false;
         exit_requested = false;
@@ -287,16 +331,27 @@ struct System::Impl {
     }
 
     SystemResultStatus Load(System& system, Frontend::EmuWindow& emu_window,
-                            const std::string& filepath, u64 program_id,
-                            std::size_t program_index) {
+                            const std::string& filepath,
+                            Service::AM::FrontendAppletParameters& params) {
         app_loader = Loader::GetLoader(system, GetGameFileFromPath(virtual_filesystem, filepath),
-                                       program_id, program_index);
+                                       params.program_id, params.program_index);
 
         if (!app_loader) {
             LOG_CRITICAL(Core, "Failed to obtain loader for {}!", filepath);
             return SystemResultStatus::ErrorGetLoader;
         }
 
+        if (app_loader->ReadProgramId(params.program_id) != Loader::ResultStatus::Success) {
+            LOG_ERROR(Core, "Failed to find title id for ROM!");
+        }
+
+        std::string name = "Unknown program";
+        if (app_loader->ReadTitle(name) != Loader::ResultStatus::Success) {
+            LOG_ERROR(Core, "Failed to read title for ROM!");
+        }
+
+        LOG_INFO(Core, "Loading {} ({})", name, params.program_id);
+
         InitializeKernel(system);
 
         // Create the application process.
@@ -330,9 +385,14 @@ struct System::Impl {
             cheat_engine->Initialize();
         }
 
+        // Register with applet manager.
+        applet_manager.CreateAndInsertByFrontendAppletParameters(main_process->GetProcessId(),
+                                                                 params);
+
         // All threads are started, begin main process execution, now that we're in the clear.
         main_process->Run(load_parameters->main_thread_priority,
                           load_parameters->main_thread_stack_size);
+        main_process->Close();
 
         if (Settings::values.gamecard_inserted) {
             if (Settings::values.gamecard_current_game) {
@@ -343,21 +403,13 @@ struct System::Impl {
             }
         }
 
-        if (app_loader->ReadProgramId(program_id) != Loader::ResultStatus::Success) {
-            LOG_ERROR(Core, "Failed to find title id for ROM (Error {})", load_result);
-        }
-        perf_stats = std::make_unique<PerfStats>(program_id);
+        perf_stats = std::make_unique<PerfStats>(params.program_id);
         // Reset counters and set time origin to current frame
         GetAndResetPerfStats();
         perf_stats->BeginSystemFrame();
 
-        std::string name = "Unknown Game";
-        if (app_loader->ReadTitle(name) != Loader::ResultStatus::Success) {
-            LOG_ERROR(Core, "Failed to read title for ROM (Error {})", load_result);
-        }
-
         std::string title_version;
-        const FileSys::PatchManager pm(program_id, system.GetFileSystemController(),
+        const FileSys::PatchManager pm(params.program_id, system.GetFileSystemController(),
                                        system.GetContentProvider());
         const auto metadata = pm.GetControlMetadata();
         if (metadata.first != nullptr) {
@@ -366,14 +418,15 @@ struct System::Impl {
         if (auto room_member = room_network.GetRoomMember().lock()) {
             Network::GameInfo game_info;
             game_info.name = name;
-            game_info.id = program_id;
+            game_info.id = params.program_id;
             game_info.version = title_version;
             room_member->SendGameInfo(game_info);
         }
 
         // Workarounds:
         // Activate this in Super Smash Brothers Ultimate, it only affects AMD cards using AMDVLK
-        Settings::values.renderer_amdvlk_depth_bias_workaround = program_id == 0x1006A800016E000ULL;
+        Settings::values.renderer_amdvlk_depth_bias_workaround =
+            params.program_id == 0x1006A800016E000ULL;
 
         status = SystemResultStatus::Success;
         return status;
@@ -412,12 +465,12 @@ struct System::Impl {
         }
         kernel.CloseServices();
         kernel.ShutdownCores();
+        applet_manager.Reset();
         services.reset();
         service_manager.reset();
         fs_controller.Reset();
         cheat_engine.reset();
         telemetry_session.reset();
-        time_manager.Shutdown();
         core_timing.ClearPendingEvents();
         app_loader.reset();
         audio_core.reset();
@@ -524,8 +577,9 @@ struct System::Impl {
 
     std::unique_ptr<Tools::RenderdocAPI> renderdoc_api;
 
-    /// Frontend applets
-    Service::AM::Applets::AppletManager applet_manager;
+    /// Applets
+    Service::AM::AppletManager applet_manager;
+    Service::AM::Frontend::FrontendAppletHolder frontend_applets;
 
     /// APM (Performance) services
     Service::APM::Controller apm_controller{core_timing};
@@ -533,7 +587,6 @@ struct System::Impl {
     /// Service State
     Service::Glue::ARPManager arp_manager;
     Service::Account::ProfileManager profile_manager;
-    Service::Time::TimeManager time_manager;
 
     /// Service manager
     std::shared_ptr<Service::SM::ServiceManager> service_manager;
@@ -639,8 +692,8 @@ void System::InitializeDebugger() {
 }
 
 SystemResultStatus System::Load(Frontend::EmuWindow& emu_window, const std::string& filepath,
-                                u64 program_id, std::size_t program_index) {
-    return impl->Load(*this, emu_window, filepath, program_id, program_index);
+                                Service::AM::FrontendAppletParameters& params) {
+    return impl->Load(*this, emu_window, filepath, params);
 }
 
 bool System::IsPoweredOn() const {
@@ -830,19 +883,19 @@ void System::RegisterCheatList(const std::vector<Memory::CheatEntry>& list,
     impl->cheat_engine->SetMainMemoryParameters(main_region_begin, main_region_size);
 }
 
-void System::SetAppletFrontendSet(Service::AM::Applets::AppletFrontendSet&& set) {
-    impl->applet_manager.SetAppletFrontendSet(std::move(set));
+void System::SetFrontendAppletSet(Service::AM::Frontend::FrontendAppletSet&& set) {
+    impl->frontend_applets.SetFrontendAppletSet(std::move(set));
 }
 
-void System::SetDefaultAppletFrontendSet() {
-    impl->applet_manager.SetDefaultAppletFrontendSet();
+Service::AM::Frontend::FrontendAppletHolder& System::GetFrontendAppletHolder() {
+    return impl->frontend_applets;
 }
 
-Service::AM::Applets::AppletManager& System::GetAppletManager() {
-    return impl->applet_manager;
+const Service::AM::Frontend::FrontendAppletHolder& System::GetFrontendAppletHolder() const {
+    return impl->frontend_applets;
 }
 
-const Service::AM::Applets::AppletManager& System::GetAppletManager() const {
+Service::AM::AppletManager& System::GetAppletManager() {
     return impl->applet_manager;
 }
 
@@ -911,14 +964,6 @@ const Service::Account::ProfileManager& System::GetProfileManager() const {
     return impl->profile_manager;
 }
 
-Service::Time::TimeManager& System::GetTimeManager() {
-    return impl->time_manager;
-}
-
-const Service::Time::TimeManager& System::GetTimeManager() const {
-    return impl->time_manager;
-}
-
 void System::SetExitLocked(bool locked) {
     impl->exit_locked = locked;
 }
@@ -1030,13 +1075,9 @@ void System::Exit() {
 }
 
 void System::ApplySettings() {
-    impl->RefreshTime();
+    impl->RefreshTime(*this);
 
     if (IsPoweredOn()) {
-        if (Settings::values.custom_rtc_enabled) {
-            const s64 posix_time{Settings::values.custom_rtc.GetValue()};
-            GetTimeManager().UpdateLocalSystemClockTime(posix_time);
-        }
         Renderer().RefreshBaseSettings();
     }
 }

src/core/core.h

@@ -13,7 +13,7 @@
 #include <vector>
 
 #include "common/common_types.h"
-#include "core/file_sys/vfs_types.h"
+#include "core/file_sys/vfs/vfs_types.h"
 
 namespace Core::Frontend {
 class EmuWindow;
@@ -50,10 +50,15 @@ namespace Account {
 class ProfileManager;
 } // namespace Account
 
-namespace AM::Applets {
-struct AppletFrontendSet;
+namespace AM {
+struct FrontendAppletParameters;
 class AppletManager;
-} // namespace AM::Applets
+} // namespace AM
+
+namespace AM::Frontend {
+struct FrontendAppletSet;
+class FrontendAppletHolder;
+} // namespace AM::Frontend
 
 namespace APM {
 class Controller;
@@ -73,10 +78,6 @@ namespace SM {
 class ServiceManager;
 } // namespace SM
 
-namespace Time {
-class TimeManager;
-} // namespace Time
-
 } // namespace Service
 
 namespace Tegra {
@@ -207,8 +208,8 @@ public:
      * @returns SystemResultStatus code, indicating if the operation succeeded.
      */
     [[nodiscard]] SystemResultStatus Load(Frontend::EmuWindow& emu_window,
-                                          const std::string& filepath, u64 program_id = 0,
-                                          std::size_t program_index = 0);
+                                          const std::string& filepath,
+                                          Service::AM::FrontendAppletParameters& params);
 
     /**
      * Indicates if the emulated system is powered on (all subsystems initialized and able to run an
@@ -348,11 +349,13 @@ public:
                            const std::array<u8, 0x20>& build_id, u64 main_region_begin,
                            u64 main_region_size);
 
-    void SetAppletFrontendSet(Service::AM::Applets::AppletFrontendSet&& set);
-    void SetDefaultAppletFrontendSet();
+    void SetFrontendAppletSet(Service::AM::Frontend::FrontendAppletSet&& set);
 
-    [[nodiscard]] Service::AM::Applets::AppletManager& GetAppletManager();
-    [[nodiscard]] const Service::AM::Applets::AppletManager& GetAppletManager() const;
+    [[nodiscard]] Service::AM::Frontend::FrontendAppletHolder& GetFrontendAppletHolder();
+    [[nodiscard]] const Service::AM::Frontend::FrontendAppletHolder& GetFrontendAppletHolder()
+        const;
+
+    [[nodiscard]] Service::AM::AppletManager& GetAppletManager();
 
     void SetContentProvider(std::unique_ptr<FileSys::ContentProviderUnion> provider);
 
@@ -381,9 +384,6 @@ public:
     [[nodiscard]] Service::Account::ProfileManager& GetProfileManager();
     [[nodiscard]] const Service::Account::ProfileManager& GetProfileManager() const;
 
-    [[nodiscard]] Service::Time::TimeManager& GetTimeManager();
-    [[nodiscard]] const Service::Time::TimeManager& GetTimeManager() const;
-
     [[nodiscard]] Core::Debugger& GetDebugger();
     [[nodiscard]] const Core::Debugger& GetDebugger() const;
 

src/core/core_timing.cpp

@@ -157,7 +157,7 @@ void CoreTiming::UnscheduleEvent(const std::shared_ptr<EventType>& event_type,
             }
         }
 
-        for (auto h : to_remove) {
+        for (auto& h : to_remove) {
             event_queue.erase(h);
         }
 

src/core/crypto/aes_util.h

@@ -7,7 +7,7 @@
 #include <span>
 #include <type_traits>
 #include "common/common_types.h"
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs/vfs.h"
 
 namespace Core::Crypto {
 

src/core/crypto/encryption_layer.h

@@ -4,7 +4,7 @@
 #pragma once
 
 #include "common/common_types.h"
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs/vfs.h"
 
 namespace Core::Crypto {
 

src/core/crypto/partition_data_manager.cpp

@@ -21,9 +21,9 @@
 #include "core/crypto/partition_data_manager.h"
 #include "core/crypto/xts_encryption_layer.h"
 #include "core/file_sys/kernel_executable.h"
-#include "core/file_sys/vfs.h"
-#include "core/file_sys/vfs_offset.h"
-#include "core/file_sys/vfs_vector.h"
+#include "core/file_sys/vfs/vfs.h"
+#include "core/file_sys/vfs/vfs_offset.h"
+#include "core/file_sys/vfs/vfs_vector.h"
 #include "core/loader/loader.h"
 
 using Common::AsArray;

src/core/crypto/partition_data_manager.h

@@ -5,7 +5,7 @@
 
 #include <vector>
 #include "common/common_types.h"
-#include "core/file_sys/vfs_types.h"
+#include "core/file_sys/vfs/vfs_types.h"
 
 namespace Core::Crypto {
 

src/core/device_memory_manager.h

@@ -10,6 +10,7 @@
 #include <mutex>
 
 #include "common/common_types.h"
+#include "common/range_mutex.h"
 #include "common/scratch_buffer.h"
 #include "common/virtual_buffer.h"
 
@@ -204,7 +205,7 @@ private:
         (1ULL << (device_virtual_bits - page_bits)) / subentries;
     using CachedPages = std::array<CounterEntry, num_counter_entries>;
     std::unique_ptr<CachedPages> cached_pages;
-    std::mutex counter_guard;
+    Common::RangeMutex counter_guard;
     std::mutex mapping_guard;
 };
 

src/core/device_memory_manager.inc

@@ -508,12 +508,7 @@ void DeviceMemoryManager<Traits>::UnregisterProcess(Asid asid) {
 
 template <typename Traits>
 void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size, s32 delta) {
-    std::unique_lock<std::mutex> lk(counter_guard, std::defer_lock);
-    const auto Lock = [&] {
-        if (!lk) {
-            lk.lock();
-        }
-    };
+    Common::ScopedRangeLock lk(counter_guard, addr, size);
     u64 uncache_begin = 0;
     u64 cache_begin = 0;
     u64 uncache_bytes = 0;
@@ -548,7 +543,6 @@ void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size
             }
             uncache_bytes += Memory::YUZU_PAGESIZE;
         } else if (uncache_bytes > 0) {
-            Lock();
             MarkRegionCaching(memory_device_inter, uncache_begin << Memory::YUZU_PAGEBITS,
                               uncache_bytes, false);
             uncache_bytes = 0;
@@ -559,7 +553,6 @@ void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size
             }
             cache_bytes += Memory::YUZU_PAGESIZE;
         } else if (cache_bytes > 0) {
-            Lock();
             MarkRegionCaching(memory_device_inter, cache_begin << Memory::YUZU_PAGEBITS, cache_bytes,
                               true);
             cache_bytes = 0;
@@ -567,12 +560,10 @@ void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size
         vpage++;
     }
     if (uncache_bytes > 0) {
-        Lock();
         MarkRegionCaching(memory_device_inter, uncache_begin << Memory::YUZU_PAGEBITS, uncache_bytes,
                           false);
     }
     if (cache_bytes > 0) {
-        Lock();
         MarkRegionCaching(memory_device_inter, cache_begin << Memory::YUZU_PAGEBITS, cache_bytes,
                           true);
     }

src/core/file_sys/bis_factory.cpp

@@ -4,9 +4,8 @@
 #include <fmt/format.h>
 #include "common/fs/path_util.h"
 #include "core/file_sys/bis_factory.h"
-#include "core/file_sys/mode.h"
 #include "core/file_sys/registered_cache.h"
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs/vfs.h"
 
 namespace FileSys {
 
@@ -84,7 +83,7 @@ VirtualFile BISFactory::OpenPartitionStorage(BisPartitionId id,
                                              VirtualFilesystem file_system) const {
     auto& keys = Core::Crypto::KeyManager::Instance();
     Core::Crypto::PartitionDataManager pdm{file_system->OpenDirectory(
-        Common::FS::GetYuzuPathString(Common::FS::YuzuPath::NANDDir), Mode::Read)};
+        Common::FS::GetYuzuPathString(Common::FS::YuzuPath::NANDDir), OpenMode::Read)};
     keys.PopulateFromPartitionData(pdm);
 
     switch (id) {

src/core/file_sys/bis_factory.h

@@ -6,7 +6,7 @@
 #include <memory>
 
 #include "common/common_types.h"
-#include "core/file_sys/vfs_types.h"
+#include "core/file_sys/vfs/vfs_types.h"
 
 namespace FileSys {
 

src/core/file_sys/card_image.cpp

@@ -13,8 +13,8 @@
 #include "core/file_sys/nca_metadata.h"
 #include "core/file_sys/partition_filesystem.h"
 #include "core/file_sys/submission_package.h"
-#include "core/file_sys/vfs_offset.h"
-#include "core/file_sys/vfs_vector.h"
+#include "core/file_sys/vfs/vfs_offset.h"
+#include "core/file_sys/vfs/vfs_vector.h"
 #include "core/loader/loader.h"
 
 namespace FileSys {

src/core/file_sys/card_image.h

@@ -8,7 +8,7 @@
 #include <vector>
 #include "common/common_types.h"
 #include "common/swap.h"
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs/vfs.h"
 
 namespace Core::Crypto {
 class KeyManager;

src/core/file_sys/content_archive.cpp

@@ -13,7 +13,7 @@
 #include "core/crypto/key_manager.h"
 #include "core/file_sys/content_archive.h"
 #include "core/file_sys/partition_filesystem.h"
-#include "core/file_sys/vfs_offset.h"
+#include "core/file_sys/vfs/vfs_offset.h"
 #include "core/loader/loader.h"
 
 #include "core/file_sys/fssystem/fssystem_compression_configuration.h"

src/core/file_sys/content_archive.h

@@ -13,7 +13,7 @@
 #include "common/common_types.h"
 #include "common/swap.h"
 #include "core/crypto/key_manager.h"
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs/vfs.h"
 
 namespace Loader {
 enum class ResultStatus : u16;

src/core/file_sys/control_metadata.cpp

@@ -5,7 +5,7 @@
 #include "common/string_util.h"
 #include "common/swap.h"
 #include "core/file_sys/control_metadata.h"
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs/vfs.h"
 
 namespace FileSys {
 

src/core/file_sys/control_metadata.h

@@ -8,7 +8,7 @@
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "common/swap.h"
-#include "core/file_sys/vfs_types.h"
+#include "core/file_sys/vfs/vfs_types.h"
 
 namespace FileSys {
 

src/core/file_sys/directory.h

@@ -1,39 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include <cstddef>
-#include "common/common_funcs.h"
-#include "common/common_types.h"
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// FileSys namespace
-
-namespace FileSys {
-
-enum class EntryType : u8 {
-    Directory = 0,
-    File = 1,
-};
-
-// Structure of a directory entry, from
-// http://switchbrew.org/index.php?title=Filesystem_services#DirectoryEntry
-struct Entry {
-    Entry(std::string_view view, EntryType entry_type, u64 entry_size)
-        : type{entry_type}, file_size{entry_size} {
-        const std::size_t copy_size = view.copy(filename, std::size(filename) - 1);
-        filename[copy_size] = '\0';
-    }
-
-    char filename[0x301];
-    INSERT_PADDING_BYTES(3);
-    EntryType type;
-    INSERT_PADDING_BYTES(3);
-    u64 file_size;
-};
-static_assert(sizeof(Entry) == 0x310, "Directory Entry struct isn't exactly 0x310 bytes long!");
-static_assert(offsetof(Entry, type) == 0x304, "Wrong offset for type in Entry.");
-static_assert(offsetof(Entry, file_size) == 0x308, "Wrong offset for file_size in Entry.");
-
-} // namespace FileSys

src/core/file_sys/errors.h

@@ -7,18 +7,13 @@
 
 namespace FileSys {
 
-constexpr Result ERROR_PATH_NOT_FOUND{ErrorModule::FS, 1};
-constexpr Result ERROR_PATH_ALREADY_EXISTS{ErrorModule::FS, 2};
-constexpr Result ERROR_ENTITY_NOT_FOUND{ErrorModule::FS, 1002};
-constexpr Result ERROR_SD_CARD_NOT_FOUND{ErrorModule::FS, 2001};
-constexpr Result ERROR_OUT_OF_BOUNDS{ErrorModule::FS, 3005};
-constexpr Result ERROR_FAILED_MOUNT_ARCHIVE{ErrorModule::FS, 3223};
-constexpr Result ERROR_INVALID_ARGUMENT{ErrorModule::FS, 6001};
-constexpr Result ERROR_INVALID_OFFSET{ErrorModule::FS, 6061};
-constexpr Result ERROR_INVALID_SIZE{ErrorModule::FS, 6062};
-
+constexpr Result ResultPathNotFound{ErrorModule::FS, 1};
+constexpr Result ResultPathAlreadyExists{ErrorModule::FS, 2};
 constexpr Result ResultUnsupportedSdkVersion{ErrorModule::FS, 50};
 constexpr Result ResultPartitionNotFound{ErrorModule::FS, 1001};
+constexpr Result ResultTargetNotFound{ErrorModule::FS, 1002};
+constexpr Result ResultPortSdCardNoDevice{ErrorModule::FS, 2001};
+constexpr Result ResultNotImplemented{ErrorModule::FS, 3001};
 constexpr Result ResultUnsupportedVersion{ErrorModule::FS, 3002};
 constexpr Result ResultOutOfRange{ErrorModule::FS, 3005};
 constexpr Result ResultAllocationMemoryFailedInFileSystemBuddyHeapA{ErrorModule::FS, 3294};
@@ -78,10 +73,21 @@ constexpr Result ResultUnexpectedInCompressedStorageA{ErrorModule::FS, 5324};
 constexpr Result ResultUnexpectedInCompressedStorageB{ErrorModule::FS, 5325};
 constexpr Result ResultUnexpectedInCompressedStorageC{ErrorModule::FS, 5326};
 constexpr Result ResultUnexpectedInCompressedStorageD{ErrorModule::FS, 5327};
+constexpr Result ResultUnexpectedInPathA{ErrorModule::FS, 5328};
 constexpr Result ResultInvalidArgument{ErrorModule::FS, 6001};
+constexpr Result ResultInvalidPath{ErrorModule::FS, 6002};
+constexpr Result ResultTooLongPath{ErrorModule::FS, 6003};
+constexpr Result ResultInvalidCharacter{ErrorModule::FS, 6004};
+constexpr Result ResultInvalidPathFormat{ErrorModule::FS, 6005};
+constexpr Result ResultDirectoryUnobtainable{ErrorModule::FS, 6006};
+constexpr Result ResultNotNormalized{ErrorModule::FS, 6007};
 constexpr Result ResultInvalidOffset{ErrorModule::FS, 6061};
 constexpr Result ResultInvalidSize{ErrorModule::FS, 6062};
 constexpr Result ResultNullptrArgument{ErrorModule::FS, 6063};
+constexpr Result ResultInvalidOpenMode{ErrorModule::FS, 6072};
+constexpr Result ResultFileExtensionWithoutOpenModeAllowAppend{ErrorModule::FS, 6201};
+constexpr Result ResultReadNotPermitted{ErrorModule::FS, 6202};
+constexpr Result ResultWriteNotPermitted{ErrorModule::FS, 6203};
 constexpr Result ResultUnsupportedSetSizeForIndirectStorage{ErrorModule::FS, 6325};
 constexpr Result ResultUnsupportedWriteForCompressedStorage{ErrorModule::FS, 6387};
 constexpr Result ResultUnsupportedOperateRangeForCompressedStorage{ErrorModule::FS, 6388};

src/core/file_sys/fs_directory.h

@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+namespace FileSys {
+
+constexpr inline size_t EntryNameLengthMax = 0x300;
+
+struct DirectoryEntry {
+    DirectoryEntry(std::string_view view, s8 entry_type, u64 entry_size)
+        : type{entry_type}, file_size{static_cast<s64>(entry_size)} {
+        const std::size_t copy_size = view.copy(name, std::size(name) - 1);
+        name[copy_size] = '\0';
+    }
+
+    char name[EntryNameLengthMax + 1];
+    INSERT_PADDING_BYTES(3);
+    s8 type;
+    INSERT_PADDING_BYTES(3);
+    s64 file_size;
+};
+
+static_assert(sizeof(DirectoryEntry) == 0x310,
+              "Directory Entry struct isn't exactly 0x310 bytes long!");
+static_assert(offsetof(DirectoryEntry, type) == 0x304, "Wrong offset for type in Entry.");
+static_assert(offsetof(DirectoryEntry, file_size) == 0x308, "Wrong offset for file_size in Entry.");
+
+struct DirectoryHandle {
+    void* handle;
+};
+
+} // namespace FileSys

src/core/file_sys/fs_file.h

@@ -0,0 +1,65 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace FileSys {
+
+struct ReadOption {
+    u32 value;
+
+    static const ReadOption None;
+};
+
+enum ReadOptionFlag : u32 {
+    ReadOptionFlag_None = (0 << 0),
+};
+
+inline constexpr const ReadOption ReadOption::None = {ReadOptionFlag_None};
+
+inline constexpr bool operator==(const ReadOption& lhs, const ReadOption& rhs) {
+    return lhs.value == rhs.value;
+}
+
+inline constexpr bool operator!=(const ReadOption& lhs, const ReadOption& rhs) {
+    return !(lhs == rhs);
+}
+
+static_assert(sizeof(ReadOption) == sizeof(u32));
+
+enum WriteOptionFlag : u32 {
+    WriteOptionFlag_None = (0 << 0),
+    WriteOptionFlag_Flush = (1 << 0),
+};
+
+struct WriteOption {
+    u32 value;
+
+    constexpr inline bool HasFlushFlag() const {
+        return value & WriteOptionFlag_Flush;
+    }
+
+    static const WriteOption None;
+    static const WriteOption Flush;
+};
+
+inline constexpr const WriteOption WriteOption::None = {WriteOptionFlag_None};
+inline constexpr const WriteOption WriteOption::Flush = {WriteOptionFlag_Flush};
+
+inline constexpr bool operator==(const WriteOption& lhs, const WriteOption& rhs) {
+    return lhs.value == rhs.value;
+}
+
+inline constexpr bool operator!=(const WriteOption& lhs, const WriteOption& rhs) {
+    return !(lhs == rhs);
+}
+
+static_assert(sizeof(WriteOption) == sizeof(u32));
+
+struct FileHandle {
+    void* handle;
+};
+
+} // namespace FileSys

src/core/file_sys/fs_filesystem.h

@@ -0,0 +1,39 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+
+namespace FileSys {
+
+enum class OpenMode : u32 {
+    Read = (1 << 0),
+    Write = (1 << 1),
+    AllowAppend = (1 << 2),
+
+    ReadWrite = (Read | Write),
+    All = (ReadWrite | AllowAppend),
+};
+DECLARE_ENUM_FLAG_OPERATORS(OpenMode)
+
+enum class OpenDirectoryMode : u64 {
+    Directory = (1 << 0),
+    File = (1 << 1),
+
+    All = (Directory | File),
+};
+DECLARE_ENUM_FLAG_OPERATORS(OpenDirectoryMode)
+
+enum class DirectoryEntryType : u8 {
+    Directory = 0,
+    File = 1,
+};
+
+enum class CreateOption : u8 {
+    None = (0 << 0),
+    BigFile = (1 << 0),
+};
+
+} // namespace FileSys

src/core/file_sys/fs_memory_management.h

@@ -0,0 +1,40 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+#include "common/alignment.h"
+
+namespace FileSys {
+
+constexpr size_t RequiredAlignment = alignof(u64);
+
+void* AllocateUnsafe(size_t size) {
+    // Allocate
+    void* const ptr = ::operator new(size, std::align_val_t{RequiredAlignment});
+
+    // Check alignment
+    ASSERT(Common::IsAligned(reinterpret_cast<uintptr_t>(ptr), RequiredAlignment));
+
+    // Return allocated pointer
+    return ptr;
+}
+
+void DeallocateUnsafe(void* ptr, size_t size) {
+    // Deallocate the pointer
+    ::operator delete(ptr, std::align_val_t{RequiredAlignment});
+}
+
+void* Allocate(size_t size) {
+    return AllocateUnsafe(size);
+}
+
+void Deallocate(void* ptr, size_t size) {
+    // If the pointer is non-null, deallocate it
+    if (ptr != nullptr) {
+        DeallocateUnsafe(ptr, size);
+    }
+}
+
+} // namespace FileSys

src/core/file_sys/fs_operate_range.h

@@ -0,0 +1,22 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace FileSys {
+
+enum class OperationId : s64 {
+    FillZero = 0,
+    DestroySignature = 1,
+    Invalidate = 2,
+    QueryRange = 3,
+    QueryUnpreparedRange = 4,
+    QueryLazyLoadCompletionRate = 5,
+    SetLazyLoadPriority = 6,
+
+    ReadLazyLoadFileForciblyForDebug = 10001,
+};
+
+} // namespace FileSys

src/core/file_sys/fs_path.h

@@ -0,0 +1,566 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/alignment.h"
+#include "common/common_funcs.h"
+#include "core/file_sys/errors.h"
+#include "core/file_sys/fs_memory_management.h"
+#include "core/file_sys/fs_path_utility.h"
+#include "core/file_sys/fs_string_util.h"
+#include "core/hle/result.h"
+
+namespace FileSys {
+class DirectoryPathParser;
+
+class Path {
+    YUZU_NON_COPYABLE(Path);
+    YUZU_NON_MOVEABLE(Path);
+
+private:
+    static constexpr const char* EmptyPath = "";
+    static constexpr size_t WriteBufferAlignmentLength = 8;
+
+private:
+    friend class DirectoryPathParser;
+
+public:
+    class WriteBuffer {
+        YUZU_NON_COPYABLE(WriteBuffer);
+
+    private:
+        char* m_buffer;
+        size_t m_length_and_is_normalized;
+
+    public:
+        constexpr WriteBuffer() : m_buffer(nullptr), m_length_and_is_normalized(0) {}
+
+        constexpr ~WriteBuffer() {
+            if (m_buffer != nullptr) {
+                Deallocate(m_buffer, this->GetLength());
+                this->ResetBuffer();
+            }
+        }
+
+        constexpr WriteBuffer(WriteBuffer&& rhs)
+            : m_buffer(rhs.m_buffer), m_length_and_is_normalized(rhs.m_length_and_is_normalized) {
+            rhs.ResetBuffer();
+        }
+
+        constexpr WriteBuffer& operator=(WriteBuffer&& rhs) {
+            if (m_buffer != nullptr) {
+                Deallocate(m_buffer, this->GetLength());
+            }
+
+            m_buffer = rhs.m_buffer;
+            m_length_and_is_normalized = rhs.m_length_and_is_normalized;
+
+            rhs.ResetBuffer();
+
+            return *this;
+        }
+
+        constexpr void ResetBuffer() {
+            m_buffer = nullptr;
+            this->SetLength(0);
+        }
+
+        constexpr char* Get() const {
+            return m_buffer;
+        }
+
+        constexpr size_t GetLength() const {
+            return m_length_and_is_normalized >> 1;
+        }
+
+        constexpr bool IsNormalized() const {
+            return static_cast<bool>(m_length_and_is_normalized & 1);
+        }
+
+        constexpr void SetNormalized() {
+            m_length_and_is_normalized |= static_cast<size_t>(1);
+        }
+
+        constexpr void SetNotNormalized() {
+            m_length_and_is_normalized &= ~static_cast<size_t>(1);
+        }
+
+    private:
+        constexpr WriteBuffer(char* buffer, size_t length)
+            : m_buffer(buffer), m_length_and_is_normalized(0) {
+            this->SetLength(length);
+        }
+
+    public:
+        static WriteBuffer Make(size_t length) {
+            if (void* alloc = Allocate(length); alloc != nullptr) {
+                return WriteBuffer(static_cast<char*>(alloc), length);
+            } else {
+                return WriteBuffer();
+            }
+        }
+
+    private:
+        constexpr void SetLength(size_t size) {
+            m_length_and_is_normalized = (m_length_and_is_normalized & 1) | (size << 1);
+        }
+    };
+
+private:
+    const char* m_str;
+    WriteBuffer m_write_buffer;
+
+public:
+    constexpr Path() : m_str(EmptyPath), m_write_buffer() {}
+
+    constexpr Path(const char* s) : m_str(s), m_write_buffer() {
+        m_write_buffer.SetNormalized();
+    }
+
+    constexpr ~Path() = default;
+
+    constexpr Result SetShallowBuffer(const char* buffer) {
+        // Check pre-conditions
+        ASSERT(m_write_buffer.GetLength() == 0);
+
+        // Check the buffer is valid
+        R_UNLESS(buffer != nullptr, ResultNullptrArgument);
+
+        // Set buffer
+        this->SetReadOnlyBuffer(buffer);
+
+        // Note that we're normalized
+        this->SetNormalized();
+
+        R_SUCCEED();
+    }
+
+    constexpr const char* GetString() const {
+        // Check pre-conditions
+        ASSERT(this->IsNormalized());
+
+        return m_str;
+    }
+
+    constexpr size_t GetLength() const {
+        if (std::is_constant_evaluated()) {
+            return Strlen(this->GetString());
+        } else {
+            return std::strlen(this->GetString());
+        }
+    }
+
+    constexpr bool IsEmpty() const {
+        return *m_str == '\x00';
+    }
+
+    constexpr bool IsMatchHead(const char* p, size_t len) const {
+        return Strncmp(this->GetString(), p, len) == 0;
+    }
+
+    Result Initialize(const Path& rhs) {
+        // Check the other path is normalized
+        const bool normalized = rhs.IsNormalized();
+        R_UNLESS(normalized, ResultNotNormalized);
+
+        // Allocate buffer for our path
+        const auto len = rhs.GetLength();
+        R_TRY(this->Preallocate(len + 1));
+
+        // Copy the path
+        const size_t copied = Strlcpy<char>(m_write_buffer.Get(), rhs.GetString(), len + 1);
+        R_UNLESS(copied == len, ResultUnexpectedInPathA);
+
+        // Set normalized
+        this->SetNormalized();
+        R_SUCCEED();
+    }
+
+    Result Initialize(const char* path, size_t len) {
+        // Check the path is valid
+        R_UNLESS(path != nullptr, ResultNullptrArgument);
+
+        // Initialize
+        R_TRY(this->InitializeImpl(path, len));
+
+        // Set not normalized
+        this->SetNotNormalized();
+
+        R_SUCCEED();
+    }
+
+    Result Initialize(const char* path) {
+        // Check the path is valid
+        R_UNLESS(path != nullptr, ResultNullptrArgument);
+
+        R_RETURN(this->Initialize(path, std::strlen(path)));
+    }
+
+    Result InitializeWithReplaceBackslash(const char* path) {
+        // Check the path is valid
+        R_UNLESS(path != nullptr, ResultNullptrArgument);
+
+        // Initialize
+        R_TRY(this->InitializeImpl(path, std::strlen(path)));
+
+        // Replace slashes as desired
+        if (const auto write_buffer_length = m_write_buffer.GetLength(); write_buffer_length > 1) {
+            Replace(m_write_buffer.Get(), write_buffer_length - 1, '\\', '/');
+        }
+
+        // Set not normalized
+        this->SetNotNormalized();
+
+        R_SUCCEED();
+    }
+
+    Result InitializeWithReplaceForwardSlashes(const char* path) {
+        // Check the path is valid
+        R_UNLESS(path != nullptr, ResultNullptrArgument);
+
+        // Initialize
+        R_TRY(this->InitializeImpl(path, std::strlen(path)));
+
+        // Replace slashes as desired
+        if (m_write_buffer.GetLength() > 1) {
+            if (auto* p = m_write_buffer.Get(); p[0] == '/' && p[1] == '/') {
+                p[0] = '\\';
+                p[1] = '\\';
+            }
+        }
+
+        // Set not normalized
+        this->SetNotNormalized();
+
+        R_SUCCEED();
+    }
+
+    Result InitializeWithNormalization(const char* path, size_t size) {
+        // Check the path is valid
+        R_UNLESS(path != nullptr, ResultNullptrArgument);
+
+        // Initialize
+        R_TRY(this->InitializeImpl(path, size));
+
+        // Set not normalized
+        this->SetNotNormalized();
+
+        // Perform normalization
+        PathFlags path_flags;
+        if (IsPathRelative(m_str)) {
+            path_flags.AllowRelativePath();
+        } else if (IsWindowsPath(m_str, true)) {
+            path_flags.AllowWindowsPath();
+        } else {
+            /* NOTE: In this case, Nintendo checks is normalized, then sets is normalized, then
+             * returns success. */
+            /* This seems like a bug. */
+            size_t dummy;
+            bool normalized;
+            R_TRY(PathFormatter::IsNormalized(std::addressof(normalized), std::addressof(dummy),
+                                              m_str));
+
+            this->SetNormalized();
+            R_SUCCEED();
+        }
+
+        // Normalize
+        R_TRY(this->Normalize(path_flags));
+
+        this->SetNormalized();
+        R_SUCCEED();
+    }
+
+    Result InitializeWithNormalization(const char* path) {
+        // Check the path is valid
+        R_UNLESS(path != nullptr, ResultNullptrArgument);
+
+        R_RETURN(this->InitializeWithNormalization(path, std::strlen(path)));
+    }
+
+    Result InitializeAsEmpty() {
+        // Clear our buffer
+        this->ClearBuffer();
+
+        // Set normalized
+        this->SetNormalized();
+
+        R_SUCCEED();
+    }
+
+    Result AppendChild(const char* child) {
+        // Check the path is valid
+        R_UNLESS(child != nullptr, ResultNullptrArgument);
+
+        // Basic checks. If we have a path and the child is empty, we have nothing to do
+        const char* c = child;
+        if (m_str[0]) {
+            // Skip an early separator
+            if (*c == '/') {
+                ++c;
+            }
+
+            R_SUCCEED_IF(*c == '\x00');
+        }
+
+        // If we don't have a string, we can just initialize
+        auto cur_len = std::strlen(m_str);
+        if (cur_len == 0) {
+            R_RETURN(this->Initialize(child));
+        }
+
+        // Remove a trailing separator
+        if (m_str[cur_len - 1] == '/' || m_str[cur_len - 1] == '\\') {
+            --cur_len;
+        }
+
+        // Get the child path's length
+        auto child_len = std::strlen(c);
+
+        // Reset our write buffer
+        WriteBuffer old_write_buffer;
+        if (m_write_buffer.Get() != nullptr) {
+            old_write_buffer = std::move(m_write_buffer);
+            this->ClearBuffer();
+        }
+
+        // Pre-allocate the new buffer
+        R_TRY(this->Preallocate(cur_len + 1 + child_len + 1));
+
+        // Get our write buffer
+        auto* dst = m_write_buffer.Get();
+        if (old_write_buffer.Get() != nullptr && cur_len > 0) {
+            Strlcpy<char>(dst, old_write_buffer.Get(), cur_len + 1);
+        }
+
+        // Add separator
+        dst[cur_len] = '/';
+
+        // Copy the child path
+        const size_t copied = Strlcpy<char>(dst + cur_len + 1, c, child_len + 1);
+        R_UNLESS(copied == child_len, ResultUnexpectedInPathA);
+
+        R_SUCCEED();
+    }
+
+    Result AppendChild(const Path& rhs) {
+        R_RETURN(this->AppendChild(rhs.GetString()));
+    }
+
+    Result Combine(const Path& parent, const Path& child) {
+        // Get the lengths
+        const auto p_len = parent.GetLength();
+        const auto c_len = child.GetLength();
+
+        // Allocate our buffer
+        R_TRY(this->Preallocate(p_len + c_len + 1));
+
+        // Initialize as parent
+        R_TRY(this->Initialize(parent));
+
+        // If we're empty, we can just initialize as child
+        if (this->IsEmpty()) {
+            R_TRY(this->Initialize(child));
+        } else {
+            // Otherwise, we should append the child
+            R_TRY(this->AppendChild(child));
+        }
+
+        R_SUCCEED();
+    }
+
+    Result RemoveChild() {
+        // If we don't have a write-buffer, ensure that we have one
+        if (m_write_buffer.Get() == nullptr) {
+            if (const auto len = std::strlen(m_str); len > 0) {
+                R_TRY(this->Preallocate(len));
+                Strlcpy<char>(m_write_buffer.Get(), m_str, len + 1);
+            }
+        }
+
+        // Check that it's possible for us to remove a child
+        auto* p = m_write_buffer.Get();
+        s32 len = std::strlen(p);
+        R_UNLESS(len != 1 || (p[0] != '/' && p[0] != '.'), ResultNotImplemented);
+
+        // Handle a trailing separator
+        if (len > 0 && (p[len - 1] == '\\' || p[len - 1] == '/')) {
+            --len;
+        }
+
+        // Remove the child path segment
+        while ((--len) >= 0 && p[len]) {
+            if (p[len] == '/' || p[len] == '\\') {
+                if (len > 0) {
+                    p[len] = 0;
+                } else {
+                    p[1] = 0;
+                    len = 1;
+                }
+                break;
+            }
+        }
+
+        // Check that length remains > 0
+        R_UNLESS(len > 0, ResultNotImplemented);
+
+        R_SUCCEED();
+    }
+
+    Result Normalize(const PathFlags& flags) {
+        // If we're already normalized, nothing to do
+        R_SUCCEED_IF(this->IsNormalized());
+
+        // Check if we're normalized
+        bool normalized;
+        size_t dummy;
+        R_TRY(PathFormatter::IsNormalized(std::addressof(normalized), std::addressof(dummy), m_str,
+                                          flags));
+
+        // If we're not normalized, normalize
+        if (!normalized) {
+            // Determine necessary buffer length
+            auto len = m_write_buffer.GetLength();
+            if (flags.IsRelativePathAllowed() && IsPathRelative(m_str)) {
+                len += 2;
+            }
+            if (flags.IsWindowsPathAllowed() && IsWindowsPath(m_str, true)) {
+                len += 1;
+            }
+
+            // Allocate a new buffer
+            const size_t size = Common::AlignUp(len, WriteBufferAlignmentLength);
+            auto buf = WriteBuffer::Make(size);
+            R_UNLESS(buf.Get() != nullptr, ResultAllocationMemoryFailedMakeUnique);
+
+            // Normalize into it
+            R_TRY(PathFormatter::Normalize(buf.Get(), size, m_write_buffer.Get(),
+                                           m_write_buffer.GetLength(), flags));
+
+            // Set the normalized buffer as our buffer
+            this->SetModifiableBuffer(std::move(buf));
+        }
+
+        // Set normalized
+        this->SetNormalized();
+        R_SUCCEED();
+    }
+
+private:
+    void ClearBuffer() {
+        m_write_buffer.ResetBuffer();
+        m_str = EmptyPath;
+    }
+
+    void SetModifiableBuffer(WriteBuffer&& buffer) {
+        // Check pre-conditions
+        ASSERT(buffer.Get() != nullptr);
+        ASSERT(buffer.GetLength() > 0);
+        ASSERT(Common::IsAligned(buffer.GetLength(), WriteBufferAlignmentLength));
+
+        // Get whether we're normalized
+        if (m_write_buffer.IsNormalized()) {
+            buffer.SetNormalized();
+        } else {
+            buffer.SetNotNormalized();
+        }
+
+        // Set write buffer
+        m_write_buffer = std::move(buffer);
+        m_str = m_write_buffer.Get();
+    }
+
+    constexpr void SetReadOnlyBuffer(const char* buffer) {
+        m_str = buffer;
+        m_write_buffer.ResetBuffer();
+    }
+
+    Result Preallocate(size_t length) {
+        // Allocate additional space, if needed
+        if (length > m_write_buffer.GetLength()) {
+            // Allocate buffer
+            const size_t size = Common::AlignUp(length, WriteBufferAlignmentLength);
+            auto buf = WriteBuffer::Make(size);
+            R_UNLESS(buf.Get() != nullptr, ResultAllocationMemoryFailedMakeUnique);
+
+            // Set write buffer
+            this->SetModifiableBuffer(std::move(buf));
+        }
+
+        R_SUCCEED();
+    }
+
+    Result InitializeImpl(const char* path, size_t size) {
+        if (size > 0 && path[0]) {
+            // Pre allocate a buffer for the path
+            R_TRY(this->Preallocate(size + 1));
+
+            // Copy the path
+            const size_t copied = Strlcpy<char>(m_write_buffer.Get(), path, size + 1);
+            R_UNLESS(copied >= size, ResultUnexpectedInPathA);
+        } else {
+            // We can just clear the buffer
+            this->ClearBuffer();
+        }
+
+        R_SUCCEED();
+    }
+
+    constexpr char* GetWriteBuffer() {
+        ASSERT(m_write_buffer.Get() != nullptr);
+        return m_write_buffer.Get();
+    }
+
+    constexpr size_t GetWriteBufferLength() const {
+        return m_write_buffer.GetLength();
+    }
+
+    constexpr bool IsNormalized() const {
+        return m_write_buffer.IsNormalized();
+    }
+
+    constexpr void SetNormalized() {
+        m_write_buffer.SetNormalized();
+    }
+
+    constexpr void SetNotNormalized() {
+        m_write_buffer.SetNotNormalized();
+    }
+
+public:
+    bool operator==(const FileSys::Path& rhs) const {
+        return std::strcmp(this->GetString(), rhs.GetString()) == 0;
+    }
+    bool operator!=(const FileSys::Path& rhs) const {
+        return !(*this == rhs);
+    }
+    bool operator==(const char* p) const {
+        return std::strcmp(this->GetString(), p) == 0;
+    }
+    bool operator!=(const char* p) const {
+        return !(*this == p);
+    }
+};
+
+inline Result SetUpFixedPath(FileSys::Path* out, const char* s) {
+    // Verify the path is normalized
+    bool normalized;
+    size_t dummy;
+    R_TRY(PathNormalizer::IsNormalized(std::addressof(normalized), std::addressof(dummy), s));
+
+    R_UNLESS(normalized, ResultInvalidPathFormat);
+
+    // Set the fixed path
+    R_RETURN(out->SetShallowBuffer(s));
+}
+
+constexpr inline bool IsWindowsDriveRootPath(const FileSys::Path& path) {
+    const char* const str = path.GetString();
+    return IsWindowsDrive(str) &&
+           (str[2] == StringTraits::DirectorySeparator ||
+            str[2] == StringTraits::AlternateDirectorySeparator) &&
+           str[3] == StringTraits::NullTerminator;
+}
+
+} // namespace FileSys

src/core/file_sys/fs_string_util.h

@@ -0,0 +1,226 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/assert.h"
+
+namespace FileSys {
+
+template <typename T>
+constexpr int Strlen(const T* str) {
+    ASSERT(str != nullptr);
+
+    int length = 0;
+    while (*str++) {
+        ++length;
+    }
+
+    return length;
+}
+
+template <typename T>
+constexpr int Strnlen(const T* str, int count) {
+    ASSERT(str != nullptr);
+    ASSERT(count >= 0);
+
+    int length = 0;
+    while (count-- && *str++) {
+        ++length;
+    }
+
+    return length;
+}
+
+template <typename T>
+constexpr int Strncmp(const T* lhs, const T* rhs, int count) {
+    ASSERT(lhs != nullptr);
+    ASSERT(rhs != nullptr);
+    ASSERT(count >= 0);
+
+    if (count == 0) {
+        return 0;
+    }
+
+    T l, r;
+    do {
+        l = *(lhs++);
+        r = *(rhs++);
+    } while (l && (l == r) && (--count));
+
+    return l - r;
+}
+
+template <typename T>
+static constexpr int Strlcpy(T* dst, const T* src, int count) {
+    ASSERT(dst != nullptr);
+    ASSERT(src != nullptr);
+
+    const T* cur = src;
+    if (count > 0) {
+        while ((--count) && *cur) {
+            *(dst++) = *(cur++);
+        }
+        *dst = 0;
+    }
+
+    while (*cur) {
+        cur++;
+    }
+
+    return static_cast<int>(cur - src);
+}
+
+enum CharacterEncodingResult {
+    CharacterEncodingResult_Success = 0,
+    CharacterEncodingResult_InsufficientLength = 1,
+    CharacterEncodingResult_InvalidFormat = 2,
+};
+
+namespace impl {
+
+class CharacterEncodingHelper {
+public:
+    static constexpr int8_t Utf8NBytesInnerTable[0x100 + 1] = {
+        -1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+        1,  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+        1,  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+        1,  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+        1,  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+        2,  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3,
+        3,  3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 7, 8,
+    };
+
+    static constexpr char GetUtf8NBytes(size_t i) {
+        return static_cast<char>(Utf8NBytesInnerTable[1 + i]);
+    }
+};
+
+} // namespace impl
+
+constexpr inline CharacterEncodingResult ConvertCharacterUtf8ToUtf32(u32* dst, const char* src) {
+    // Check pre-conditions
+    ASSERT(dst != nullptr);
+    ASSERT(src != nullptr);
+
+    // Perform the conversion
+    const auto* p = src;
+    switch (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[0]))) {
+    case 1:
+        *dst = static_cast<u32>(p[0]);
+        return CharacterEncodingResult_Success;
+    case 2:
+        if ((static_cast<u32>(p[0]) & 0x1E) != 0) {
+            if (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[1])) ==
+                0) {
+                *dst = (static_cast<u32>(p[0] & 0x1F) << 6) | (static_cast<u32>(p[1] & 0x3F) << 0);
+                return CharacterEncodingResult_Success;
+            }
+        }
+        break;
+    case 3:
+        if (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[1])) == 0 &&
+            impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[2])) == 0) {
+            const u32 c = (static_cast<u32>(p[0] & 0xF) << 12) |
+                          (static_cast<u32>(p[1] & 0x3F) << 6) |
+                          (static_cast<u32>(p[2] & 0x3F) << 0);
+            if ((c & 0xF800) != 0 && (c & 0xF800) != 0xD800) {
+                *dst = c;
+                return CharacterEncodingResult_Success;
+            }
+        }
+        return CharacterEncodingResult_InvalidFormat;
+    case 4:
+        if (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[1])) == 0 &&
+            impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[2])) == 0 &&
+            impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[3])) == 0) {
+            const u32 c =
+                (static_cast<u32>(p[0] & 0x7) << 18) | (static_cast<u32>(p[1] & 0x3F) << 12) |
+                (static_cast<u32>(p[2] & 0x3F) << 6) | (static_cast<u32>(p[3] & 0x3F) << 0);
+            if (c >= 0x10000 && c < 0x110000) {
+                *dst = c;
+                return CharacterEncodingResult_Success;
+            }
+        }
+        return CharacterEncodingResult_InvalidFormat;
+    default:
+        break;
+    }
+
+    // We failed to convert
+    return CharacterEncodingResult_InvalidFormat;
+}
+
+constexpr inline CharacterEncodingResult PickOutCharacterFromUtf8String(char* dst,
+                                                                        const char** str) {
+    // Check pre-conditions
+    ASSERT(dst != nullptr);
+    ASSERT(str != nullptr);
+    ASSERT(*str != nullptr);
+
+    // Clear the output
+    dst[0] = 0;
+    dst[1] = 0;
+    dst[2] = 0;
+    dst[3] = 0;
+
+    // Perform the conversion
+    const auto* p = *str;
+    u32 c = static_cast<u32>(*p);
+    switch (impl::CharacterEncodingHelper::GetUtf8NBytes(c)) {
+    case 1:
+        dst[0] = (*str)[0];
+        ++(*str);
+        break;
+    case 2:
+        if ((p[0] & 0x1E) != 0) {
+            if (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[1])) ==
+                0) {
+                c = (static_cast<u32>(p[0] & 0x1F) << 6) | (static_cast<u32>(p[1] & 0x3F) << 0);
+                dst[0] = (*str)[0];
+                dst[1] = (*str)[1];
+                (*str) += 2;
+                break;
+            }
+        }
+        return CharacterEncodingResult_InvalidFormat;
+    case 3:
+        if (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[1])) == 0 &&
+            impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[2])) == 0) {
+            c = (static_cast<u32>(p[0] & 0xF) << 12) | (static_cast<u32>(p[1] & 0x3F) << 6) |
+                (static_cast<u32>(p[2] & 0x3F) << 0);
+            if ((c & 0xF800) != 0 && (c & 0xF800) != 0xD800) {
+                dst[0] = (*str)[0];
+                dst[1] = (*str)[1];
+                dst[2] = (*str)[2];
+                (*str) += 3;
+                break;
+            }
+        }
+        return CharacterEncodingResult_InvalidFormat;
+    case 4:
+        if (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[1])) == 0 &&
+            impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[2])) == 0 &&
+            impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[3])) == 0) {
+            c = (static_cast<u32>(p[0] & 0x7) << 18) | (static_cast<u32>(p[1] & 0x3F) << 12) |
+                (static_cast<u32>(p[2] & 0x3F) << 6) | (static_cast<u32>(p[3] & 0x3F) << 0);
+            if (c >= 0x10000 && c < 0x110000) {
+                dst[0] = (*str)[0];
+                dst[1] = (*str)[1];
+                dst[2] = (*str)[2];
+                dst[3] = (*str)[3];
+                (*str) += 4;
+                break;
+            }
+        }
+        return CharacterEncodingResult_InvalidFormat;
+    default:
+        return CharacterEncodingResult_InvalidFormat;
+    }
+
+    return CharacterEncodingResult_Success;
+}
+
+} // namespace FileSys

src/core/file_sys/fsmitm_romfsbuild.cpp

@@ -8,8 +8,8 @@
 #include "common/assert.h"
 #include "core/file_sys/fsmitm_romfsbuild.h"
 #include "core/file_sys/ips_layer.h"
-#include "core/file_sys/vfs.h"
-#include "core/file_sys/vfs_vector.h"
+#include "core/file_sys/vfs/vfs.h"
+#include "core/file_sys/vfs/vfs_vector.h"
 
 namespace FileSys {
 

src/core/file_sys/fsmitm_romfsbuild.h

@@ -7,7 +7,7 @@
 #include <memory>
 #include <string>
 #include "common/common_types.h"
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs/vfs.h"
 
 namespace FileSys {
 

src/core/file_sys/fssystem/fs_i_storage.h

@@ -5,7 +5,7 @@
 
 #include "common/overflow.h"
 #include "core/file_sys/errors.h"
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs/vfs.h"
 
 namespace FileSys {
 

src/core/file_sys/fssystem/fssystem_aes_ctr_counter_extended_storage.cpp

@@ -4,7 +4,7 @@
 #include "core/file_sys/fssystem/fssystem_aes_ctr_counter_extended_storage.h"
 #include "core/file_sys/fssystem/fssystem_aes_ctr_storage.h"
 #include "core/file_sys/fssystem/fssystem_nca_header.h"
-#include "core/file_sys/vfs_offset.h"
+#include "core/file_sys/vfs/vfs_offset.h"
 
 namespace FileSys {
 

src/core/file_sys/fssystem/fssystem_aes_ctr_storage.h

@@ -9,7 +9,7 @@
 #include "core/crypto/key_manager.h"
 #include "core/file_sys/errors.h"
 #include "core/file_sys/fssystem/fs_i_storage.h"
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs/vfs.h"
 
 namespace FileSys {
 

src/core/file_sys/fssystem/fssystem_bucket_tree.h

@@ -10,7 +10,7 @@
 #include "common/common_types.h"
 #include "common/literals.h"
 
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs/vfs.h"
 #include "core/hle/result.h"
 
 namespace FileSys {

src/core/file_sys/fssystem/fssystem_compressed_storage.h

@@ -10,7 +10,7 @@
 #include "core/file_sys/fssystem/fssystem_bucket_tree.h"
 #include "core/file_sys/fssystem/fssystem_compression_common.h"
 #include "core/file_sys/fssystem/fssystem_pooled_buffer.h"
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs/vfs.h"
 
 namespace FileSys {
 

src/core/file_sys/fssystem/fssystem_hierarchical_integrity_verification_storage.cpp

@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "core/file_sys/fssystem/fssystem_hierarchical_integrity_verification_storage.h"
-#include "core/file_sys/vfs_offset.h"
+#include "core/file_sys/vfs/vfs_offset.h"
 
 namespace FileSys {
 

src/core/file_sys/fssystem/fssystem_hierarchical_integrity_verification_storage.h

@@ -8,7 +8,7 @@
 #include "core/file_sys/fssystem/fs_types.h"
 #include "core/file_sys/fssystem/fssystem_alignment_matching_storage.h"
 #include "core/file_sys/fssystem/fssystem_integrity_verification_storage.h"
-#include "core/file_sys/vfs_offset.h"
+#include "core/file_sys/vfs/vfs_offset.h"
 
 namespace FileSys {
 

src/core/file_sys/fssystem/fssystem_hierarchical_sha256_storage.h

@@ -7,7 +7,7 @@
 
 #include "core/file_sys/errors.h"
 #include "core/file_sys/fssystem/fs_i_storage.h"
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs/vfs.h"
 
 namespace FileSys {
 

src/core/file_sys/fssystem/fssystem_indirect_storage.h

@@ -7,8 +7,8 @@
 #include "core/file_sys/fssystem/fs_i_storage.h"
 #include "core/file_sys/fssystem/fssystem_bucket_tree.h"
 #include "core/file_sys/fssystem/fssystem_bucket_tree_template_impl.h"
-#include "core/file_sys/vfs.h"
-#include "core/file_sys/vfs_offset.h"
+#include "core/file_sys/vfs/vfs.h"
+#include "core/file_sys/vfs/vfs_offset.h"
 
 namespace FileSys {