Android #136

renderer_vulkan: ignore viewport stores on non-supporting drivers

.codespellrc

@@ -3,4 +3,4 @@
 
 [codespell]
 skip = ./.git,./build,./dist,./Doxyfile,./externals,./LICENSES,./src/android/app/src/main/res
-ignore-words-list = aci,allright,ba,canonicalizations,deques,froms,hda,inout,lod,masia,nam,nax,nd,optin,pullrequests,pullrequest,te,transfered,unstall,uscaled,vas,zink
+ignore-words-list = aci,allright,ba,canonicalizations,deques,froms,hda,inout,lod,masia,nam,nax,nce,nd,optin,pullrequests,pullrequest,te,transfered,unstall,uscaled,vas,zink

.gitmodules

@@ -61,3 +61,6 @@
 [submodule "breakpad"]
 	path = externals/breakpad
 	url = https://github.com/yuzu-emu/breakpad.git
+[submodule "oaknut"]
+	path = externals/oaknut
+	url = https://github.com/merryhime/oaknut

README.md

@@ -1,3 +1,13 @@
+| Pull Request | Commit | Title | Author | Merged? |
+|----|----|----|----|----|
+| [11535](https://github.com/yuzu-emu/yuzu//pull/11535) | [`50bcfa5fb`](https://github.com/yuzu-emu/yuzu//pull/11535/files) | renderer_vulkan: Introduce separate cmd buffer for uploads | [GPUCode](https://github.com/GPUCode/) | Yes |
+| [12074](https://github.com/yuzu-emu/yuzu//pull/12074) | [`d0285e882`](https://github.com/yuzu-emu/yuzu//pull/12074/files) | Implement Native Code Execution (NCE) | [GPUCode](https://github.com/GPUCode/) | 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

@@ -20,6 +20,10 @@ if ((ARCHITECTURE_x86 OR ARCHITECTURE_x86_64) AND NOT TARGET xbyak::xbyak)
 endif()
 
 # Dynarmic
+if (ARCHITECTURE_arm64 AND NOT TARGET merry::oaknut)
+    add_subdirectory(oaknut)
+endif()
+
 if ((ARCHITECTURE_x86_64 OR ARCHITECTURE_arm64) AND NOT TARGET dynarmic::dynarmic)
     set(DYNARMIC_IGNORE_ASSERTS ON)
     add_subdirectory(dynarmic)

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

@@ -373,8 +373,10 @@ class EmulationActivity : AppCompatActivity(), SensorEventListener {
         val pictureInPictureParamsBuilder = PictureInPictureParams.Builder()
             .getPictureInPictureActionsBuilder().getPictureInPictureAspectBuilder()
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+            val isEmulationActive = emulationViewModel.emulationStarted.value &&
+                !emulationViewModel.isEmulationStopping.value
             pictureInPictureParamsBuilder.setAutoEnterEnabled(
-                BooleanSetting.PICTURE_IN_PICTURE.boolean
+                BooleanSetting.PICTURE_IN_PICTURE.boolean && isEmulationActive
             )
         }
         setPictureInPictureParams(pictureInPictureParamsBuilder.build())

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

@@ -22,12 +22,16 @@ import androidx.core.graphics.drawable.toBitmap
 import androidx.core.graphics.drawable.toDrawable
 import androidx.documentfile.provider.DocumentFile
 import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.lifecycleScope
 import androidx.navigation.findNavController
 import androidx.preference.PreferenceManager
 import androidx.recyclerview.widget.AsyncDifferConfig
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.ListAdapter
 import androidx.recyclerview.widget.RecyclerView
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import org.yuzu.yuzu_emu.HomeNavigationDirections
 import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.YuzuApplication
@@ -92,6 +96,8 @@ class GameAdapter(private val activity: AppCompatActivity) :
             data = Uri.parse(holder.game.path)
         }
 
+        activity.lifecycleScope.launch {
+            withContext(Dispatchers.IO) {
                 val layerDrawable = ResourcesCompat.getDrawable(
                     YuzuApplication.appContext.resources,
                     R.drawable.shortcut,
@@ -99,12 +105,14 @@ class GameAdapter(private val activity: AppCompatActivity) :
                 ) as LayerDrawable
                 layerDrawable.setDrawableByLayerId(
                     R.id.shortcut_foreground,
-            GameIconUtils.getGameIcon(holder.game).toDrawable(YuzuApplication.appContext.resources)
+                    GameIconUtils.getGameIcon(activity, holder.game)
+                        .toDrawable(YuzuApplication.appContext.resources)
                 )
                 val inset = YuzuApplication.appContext.resources
                     .getDimensionPixelSize(R.dimen.icon_inset)
                 layerDrawable.setLayerInset(1, inset, inset, inset, inset)
-        val shortcut = ShortcutInfoCompat.Builder(YuzuApplication.appContext, holder.game.path)
+                val shortcut =
+                    ShortcutInfoCompat.Builder(YuzuApplication.appContext, holder.game.path)
                         .setShortLabel(holder.game.title)
                         .setIcon(
                             IconCompat.createWithAdaptiveBitmap(
@@ -114,6 +122,8 @@ class GameAdapter(private val activity: AppCompatActivity) :
                         .setIntent(openIntent)
                         .build()
                 ShortcutManagerCompat.pushDynamicShortcut(YuzuApplication.appContext, shortcut)
+            }
+        }
 
         val action = HomeNavigationDirections.actionGlobalEmulationActivity(holder.game)
         view.findNavController().navigate(action)

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/IntSetting.kt

@@ -10,6 +10,7 @@ enum class IntSetting(
     override val category: Settings.Category,
     override val androidDefault: Int? = null
 ) : AbstractIntSetting {
+    CPU_BACKEND("cpu_backend", Settings.Category.Cpu),
     CPU_ACCURACY("cpu_accuracy", Settings.Category.Cpu),
     REGION_INDEX("region_index", Settings.Category.System),
     LANGUAGE_INDEX("language_index", Settings.Category.System),

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/Settings.kt

@@ -82,7 +82,6 @@ object Settings {
 
     enum class MenuTag(val titleId: Int) {
         SECTION_ROOT(R.string.advanced_settings),
-        SECTION_GENERAL(R.string.preferences_general),
         SECTION_SYSTEM(R.string.preferences_system),
         SECTION_RENDERER(R.string.preferences_graphics),
         SECTION_AUDIO(R.string.preferences_audio),

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/RunnableSetting.kt

@@ -3,10 +3,13 @@
 
 package org.yuzu.yuzu_emu.features.settings.model.view
 
+import androidx.annotation.DrawableRes
+
 class RunnableSetting(
     titleId: Int,
     descriptionId: Int,
     val isRuntimeRunnable: Boolean,
+    @DrawableRes val iconId: Int = 0,
     val runnable: () -> Unit
 ) : SettingsItem(emptySetting, titleId, descriptionId) {
     override val type = TYPE_RUNNABLE

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt

@@ -77,6 +77,15 @@ abstract class SettingsItem(
                     "%"
                 )
             )
+            put(
+                SingleChoiceSetting(
+                    IntSetting.CPU_BACKEND,
+                    R.string.cpu_backend,
+                    0,
+                    R.array.cpuBackendNames,
+                    R.array.cpuBackendValues
+                )
+            )
             put(
                 SingleChoiceSetting(
                     IntSetting.CPU_ACCURACY,

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SubmenuSetting.kt

@@ -3,11 +3,14 @@
 
 package org.yuzu.yuzu_emu.features.settings.model.view
 
+import androidx.annotation.DrawableRes
+import androidx.annotation.StringRes
 import org.yuzu.yuzu_emu.features.settings.model.Settings
 
 class SubmenuSetting(
-    titleId: Int,
+    @StringRes titleId: Int,
-    descriptionId: Int,
+    @StringRes descriptionId: Int,
+    @DrawableRes val iconId: Int,
     val menuKey: Settings.MenuTag
 ) : SettingsItem(emptySetting, titleId, descriptionId) {
     override val type = TYPE_SUBMENU

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragment.kt

@@ -20,7 +20,6 @@ import androidx.lifecycle.repeatOnLifecycle
 import androidx.navigation.findNavController
 import androidx.navigation.fragment.navArgs
 import androidx.recyclerview.widget.LinearLayoutManager
-import com.google.android.material.divider.MaterialDividerItemDecoration
 import com.google.android.material.transition.MaterialSharedAxis
 import kotlinx.coroutines.flow.collectLatest
 import kotlinx.coroutines.launch
@@ -68,15 +67,9 @@ class SettingsFragment : Fragment() {
         )
 
         binding.toolbarSettingsLayout.title = getString(args.menuTag.titleId)
-        val dividerDecoration = MaterialDividerItemDecoration(
-            requireContext(),
-            LinearLayoutManager.VERTICAL
-        )
-        dividerDecoration.isLastItemDecorated = false
         binding.listSettings.apply {
             adapter = settingsAdapter
             layoutManager = LinearLayoutManager(requireContext())
-            addItemDecoration(dividerDecoration)
         }
 
         binding.toolbarSettings.setNavigationOnClickListener {
@@ -94,17 +87,6 @@ class SettingsFragment : Fragment() {
                     }
                 }
             }
-            launch {
-                settingsViewModel.isUsingSearch.collectLatest {
-                    if (it) {
-                        reenterTransition = MaterialSharedAxis(MaterialSharedAxis.Z, true)
-                        exitTransition = MaterialSharedAxis(MaterialSharedAxis.Z, false)
-                    } else {
-                        reenterTransition = MaterialSharedAxis(MaterialSharedAxis.X, false)
-                        exitTransition = MaterialSharedAxis(MaterialSharedAxis.X, true)
-                    }
-                }
-            }
         }
 
         if (args.menuTag == Settings.MenuTag.SECTION_ROOT) {
@@ -112,8 +94,6 @@ class SettingsFragment : Fragment() {
             binding.toolbarSettings.setOnMenuItemClickListener {
                 when (it.itemId) {
                     R.id.action_search -> {
-                        reenterTransition = MaterialSharedAxis(MaterialSharedAxis.Z, true)
-                        exitTransition = MaterialSharedAxis(MaterialSharedAxis.Z, false)
                         view.findNavController()
                             .navigate(R.id.action_settingsFragment_to_settingsSearchFragment)
                         true
@@ -129,11 +109,6 @@ class SettingsFragment : Fragment() {
         setInsets()
     }
 
-    override fun onResume() {
-        super.onResume()
-        settingsViewModel.setIsUsingSearch(false)
-    }
-
     private fun setInsets() {
         ViewCompat.setOnApplyWindowInsetsListener(
             binding.root
@@ -144,10 +119,9 @@ class SettingsFragment : Fragment() {
             val leftInsets = barInsets.left + cutoutInsets.left
             val rightInsets = barInsets.right + cutoutInsets.right
 
-            val sideMargin = resources.getDimensionPixelSize(R.dimen.spacing_medlarge)
             val mlpSettingsList = binding.listSettings.layoutParams as MarginLayoutParams
-            mlpSettingsList.leftMargin = sideMargin + leftInsets
+            mlpSettingsList.leftMargin = leftInsets
-            mlpSettingsList.rightMargin = sideMargin + rightInsets
+            mlpSettingsList.rightMargin = rightInsets
             binding.listSettings.layoutParams = mlpSettingsList
             binding.listSettings.updatePadding(
                 bottom = barInsets.bottom

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt

@@ -3,7 +3,6 @@
 
 package org.yuzu.yuzu_emu.features.settings.ui
 
-import android.content.Context
 import android.content.SharedPreferences
 import android.os.Build
 import android.widget.Toast
@@ -32,8 +31,6 @@ class SettingsFragmentPresenter(
     private val preferences: SharedPreferences
         get() = PreferenceManager.getDefaultSharedPreferences(YuzuApplication.appContext)
 
-    private val context: Context get() = YuzuApplication.appContext
-
     // Extension for populating settings list based on paired settings
     fun ArrayList<SettingsItem>.add(key: String) {
         val item = SettingsItem.settingsItems[key]!!
@@ -53,7 +50,6 @@ class SettingsFragmentPresenter(
         val sl = ArrayList<SettingsItem>()
         when (menuTag) {
             Settings.MenuTag.SECTION_ROOT -> addConfigSettings(sl)
-            Settings.MenuTag.SECTION_GENERAL -> addGeneralSettings(sl)
             Settings.MenuTag.SECTION_SYSTEM -> addSystemSettings(sl)
             Settings.MenuTag.SECTION_RENDERER -> addGraphicsSettings(sl)
             Settings.MenuTag.SECTION_AUDIO -> addAudioSettings(sl)
@@ -75,30 +71,53 @@ class SettingsFragmentPresenter(
 
     private fun addConfigSettings(sl: ArrayList<SettingsItem>) {
         sl.apply {
-            add(SubmenuSetting(R.string.preferences_general, 0, Settings.MenuTag.SECTION_GENERAL))
-            add(SubmenuSetting(R.string.preferences_system, 0, Settings.MenuTag.SECTION_SYSTEM))
-            add(SubmenuSetting(R.string.preferences_graphics, 0, Settings.MenuTag.SECTION_RENDERER))
-            add(SubmenuSetting(R.string.preferences_audio, 0, Settings.MenuTag.SECTION_AUDIO))
-            add(SubmenuSetting(R.string.preferences_debug, 0, Settings.MenuTag.SECTION_DEBUG))
             add(
-                RunnableSetting(R.string.reset_to_default, 0, false) {
+                SubmenuSetting(
-                    settingsViewModel.setShouldShowResetSettingsDialog(true)
+                    R.string.preferences_system,
-                }
+                    R.string.preferences_system_description,
+                    R.drawable.ic_system_settings,
+                    Settings.MenuTag.SECTION_SYSTEM
+                )
+            )
+            add(
+                SubmenuSetting(
+                    R.string.preferences_graphics,
+                    R.string.preferences_graphics_description,
+                    R.drawable.ic_graphics,
+                    Settings.MenuTag.SECTION_RENDERER
+                )
+            )
+            add(
+                SubmenuSetting(
+                    R.string.preferences_audio,
+                    R.string.preferences_audio_description,
+                    R.drawable.ic_audio,
+                    Settings.MenuTag.SECTION_AUDIO
+                )
+            )
+            add(
+                SubmenuSetting(
+                    R.string.preferences_debug,
+                    R.string.preferences_debug_description,
+                    R.drawable.ic_code,
+                    Settings.MenuTag.SECTION_DEBUG
+                )
+            )
+            add(
+                RunnableSetting(
+                    R.string.reset_to_default,
+                    R.string.reset_to_default_description,
+                    false,
+                    R.drawable.ic_restore
+                ) { settingsViewModel.setShouldShowResetSettingsDialog(true) }
             )
-        }
-    }
-
-    private fun addGeneralSettings(sl: ArrayList<SettingsItem>) {
-        sl.apply {
-            add(BooleanSetting.RENDERER_USE_SPEED_LIMIT.key)
-            add(ShortSetting.RENDERER_SPEED_LIMIT.key)
-            add(IntSetting.CPU_ACCURACY.key)
-            add(BooleanSetting.PICTURE_IN_PICTURE.key)
         }
     }
 
     private fun addSystemSettings(sl: ArrayList<SettingsItem>) {
         sl.apply {
+            add(BooleanSetting.RENDERER_USE_SPEED_LIMIT.key)
+            add(ShortSetting.RENDERER_SPEED_LIMIT.key)
             add(BooleanSetting.USE_DOCKED_MODE.key)
             add(IntSetting.REGION_INDEX.key)
             add(IntSetting.LANGUAGE_INDEX.key)
@@ -116,6 +135,7 @@ class SettingsFragmentPresenter(
             add(IntSetting.RENDERER_ANTI_ALIASING.key)
             add(IntSetting.RENDERER_SCREEN_LAYOUT.key)
             add(IntSetting.RENDERER_ASPECT_RATIO.key)
+            add(BooleanSetting.PICTURE_IN_PICTURE.key)
             add(BooleanSetting.RENDERER_USE_DISK_SHADER_CACHE.key)
             add(BooleanSetting.RENDERER_FORCE_MAX_CLOCK.key)
             add(BooleanSetting.RENDERER_ASYNCHRONOUS_SHADERS.key)
@@ -249,6 +269,8 @@ class SettingsFragmentPresenter(
             add(BooleanSetting.RENDERER_DEBUG.key)
 
             add(HeaderSetting(R.string.cpu))
+            add(IntSetting.CPU_BACKEND.key)
+            add(IntSetting.CPU_ACCURACY.key)
             add(BooleanSetting.CPU_DEBUG_MODE.key)
             add(SettingsItem.FASTMEM_COMBINED)
         }

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/RunnableViewHolder.kt

@@ -4,6 +4,7 @@
 package org.yuzu.yuzu_emu.features.settings.ui.viewholder
 
 import android.view.View
+import androidx.core.content.res.ResourcesCompat
 import org.yuzu.yuzu_emu.NativeLibrary
 import org.yuzu.yuzu_emu.databinding.ListItemSettingBinding
 import org.yuzu.yuzu_emu.features.settings.model.view.RunnableSetting
@@ -16,6 +17,19 @@ class RunnableViewHolder(val binding: ListItemSettingBinding, adapter: SettingsA
 
     override fun bind(item: SettingsItem) {
         setting = item as RunnableSetting
+        if (item.iconId != 0) {
+            binding.icon.visibility = View.VISIBLE
+            binding.icon.setImageDrawable(
+                ResourcesCompat.getDrawable(
+                    binding.icon.resources,
+                    item.iconId,
+                    binding.icon.context.theme
+                )
+            )
+        } else {
+            binding.icon.visibility = View.GONE
+        }
+
         binding.textSettingName.setText(item.nameId)
         if (item.descriptionId != 0) {
             binding.textSettingDescription.setText(item.descriptionId)

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SubmenuViewHolder.kt

@@ -4,6 +4,7 @@
 package org.yuzu.yuzu_emu.features.settings.ui.viewholder
 
 import android.view.View
+import androidx.core.content.res.ResourcesCompat
 import org.yuzu.yuzu_emu.databinding.ListItemSettingBinding
 import org.yuzu.yuzu_emu.features.settings.model.view.SettingsItem
 import org.yuzu.yuzu_emu.features.settings.model.view.SubmenuSetting
@@ -15,6 +16,19 @@ class SubmenuViewHolder(val binding: ListItemSettingBinding, adapter: SettingsAd
 
     override fun bind(item: SettingsItem) {
         this.item = item as SubmenuSetting
+        if (item.iconId != 0) {
+            binding.icon.visibility = View.VISIBLE
+            binding.icon.setImageDrawable(
+                ResourcesCompat.getDrawable(
+                    binding.icon.resources,
+                    item.iconId,
+                    binding.icon.context.theme
+                )
+            )
+        } else {
+            binding.icon.visibility = View.GONE
+        }
+
         binding.textSettingName.setText(item.nameId)
         if (item.descriptionId != 0) {
             binding.textSettingDescription.setText(item.descriptionId)

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

@@ -114,10 +114,10 @@ class AboutFragment : Fragment() {
             val leftInsets = barInsets.left + cutoutInsets.left
             val rightInsets = barInsets.right + cutoutInsets.right
 
-            val mlpAppBar = binding.appbarAbout.layoutParams as MarginLayoutParams
+            val mlpToolbar = binding.toolbarAbout.layoutParams as MarginLayoutParams
-            mlpAppBar.leftMargin = leftInsets
+            mlpToolbar.leftMargin = leftInsets
-            mlpAppBar.rightMargin = rightInsets
+            mlpToolbar.rightMargin = rightInsets
-            binding.appbarAbout.layoutParams = mlpAppBar
+            binding.toolbarAbout.layoutParams = mlpToolbar
 
             val mlpScrollAbout = binding.scrollAbout.layoutParams as MarginLayoutParams
             mlpScrollAbout.leftMargin = leftInsets

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

@@ -40,8 +40,10 @@ class SettingsSearchFragment : Fragment() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        enterTransition = MaterialSharedAxis(MaterialSharedAxis.Z, false)
+        enterTransition = MaterialSharedAxis(MaterialSharedAxis.X, true)
-        returnTransition = MaterialSharedAxis(MaterialSharedAxis.Z, true)
+        returnTransition = MaterialSharedAxis(MaterialSharedAxis.X, false)
+        reenterTransition = MaterialSharedAxis(MaterialSharedAxis.X, false)
+        exitTransition = MaterialSharedAxis(MaterialSharedAxis.X, true)
     }
 
     override fun onCreateView(
@@ -55,7 +57,6 @@ class SettingsSearchFragment : Fragment() {
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        settingsViewModel.setIsUsingSearch(true)
 
         if (savedInstanceState != null) {
             binding.searchText.setText(savedInstanceState.getString(SEARCH_TEXT))

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

@@ -29,9 +29,6 @@ class SettingsViewModel : ViewModel() {
     val shouldReloadSettingsList: StateFlow<Boolean> get() = _shouldReloadSettingsList
     private val _shouldReloadSettingsList = MutableStateFlow(false)
 
-    val isUsingSearch: StateFlow<Boolean> get() = _isUsingSearch
-    private val _isUsingSearch = MutableStateFlow(false)
-
     val sliderProgress: StateFlow<Int> get() = _sliderProgress
     private val _sliderProgress = MutableStateFlow(-1)
 
@@ -57,10 +54,6 @@ class SettingsViewModel : ViewModel() {
         _shouldReloadSettingsList.value = value
     }
 
-    fun setIsUsingSearch(value: Boolean) {
-        _isUsingSearch.value = value
-    }
-
     fun setSliderTextValue(value: Float, units: String) {
         _sliderProgress.value = value.toInt()
         _sliderTextValue.value = String.format(

src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/GameIconUtils.kt

@@ -8,9 +8,9 @@ import android.graphics.BitmapFactory
 import android.widget.ImageView
 import androidx.core.graphics.drawable.toBitmap
 import androidx.core.graphics.drawable.toDrawable
+import androidx.lifecycle.LifecycleOwner
 import coil.ImageLoader
 import coil.decode.DataSource
-import coil.executeBlocking
 import coil.fetch.DrawableResult
 import coil.fetch.FetchResult
 import coil.fetch.Fetcher
@@ -76,12 +76,13 @@ object GameIconUtils {
         imageLoader.enqueue(request)
     }
 
-    fun getGameIcon(game: Game): Bitmap {
+    suspend fun getGameIcon(lifecycleOwner: LifecycleOwner, game: Game): Bitmap {
         val request = ImageRequest.Builder(YuzuApplication.appContext)
             .data(game)
+            .lifecycle(lifecycleOwner)
             .error(R.drawable.default_icon)
             .build()
-        return imageLoader.executeBlocking(request)
+        return imageLoader.execute(request)
             .drawable!!.toBitmap(config = Bitmap.Config.ARGB_8888)
     }
 }

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

@@ -177,6 +177,7 @@ void Config::ReadValues() {
     ReadSetting("Core", Settings::values.memory_layout_mode);
 
     // Cpu
+    ReadSetting("Cpu", Settings::values.cpu_backend);
     ReadSetting("Cpu", Settings::values.cpu_accuracy);
     ReadSetting("Cpu", Settings::values.cpu_debug_mode);
     ReadSetting("Cpu", Settings::values.cpuopt_page_tables);

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

@@ -153,6 +153,10 @@ use_multi_core =
 use_unsafe_extended_memory_layout =
 
 [Cpu]
+Selects the preferred CPU backend for executing ARM instructions
+# 0 (default): Dynarmic, 1: NCE
+cpu_backend =
+
 # Adjusts various optimizations.
 # Auto-select mode enables choice unsafe optimizations.
 # Accurate enables only safe optimizations.

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

@@ -9,6 +9,7 @@
 #include "input_common/drivers/virtual_gamepad.h"
 #include "input_common/main.h"
 #include "jni/emu_window/emu_window.h"
+#include "jni/native.h"
 
 void EmuWindow_Android::OnSurfaceChanged(ANativeWindow* surface) {
     m_window_width = ANativeWindow_getWidth(surface);
@@ -57,6 +58,13 @@ void EmuWindow_Android::OnRemoveNfcTag() {
     m_input_subsystem->GetVirtualAmiibo()->CloseAmiibo();
 }
 
+void EmuWindow_Android::OnFrameDisplayed() {
+    if (!m_first_frame) {
+        EmulationSession::GetInstance().OnEmulationStarted();
+        m_first_frame = true;
+    }
+}
+
 EmuWindow_Android::EmuWindow_Android(InputCommon::InputSubsystem* input_subsystem,
                                      ANativeWindow* surface,
                                      std::shared_ptr<Common::DynamicLibrary> driver_library)

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

@@ -45,7 +45,7 @@ public:
                               float gyro_z, float accel_x, float accel_y, float accel_z);
     void OnReadNfcTag(std::span<u8> data);
     void OnRemoveNfcTag();
-    void OnFrameDisplayed() override {}
+    void OnFrameDisplayed() override;
 
     std::unique_ptr<Core::Frontend::GraphicsContext> CreateSharedContext() const override {
         return {std::make_unique<GraphicsContext_Android>(m_driver_library)};
@@ -61,4 +61,6 @@ private:
     float m_window_height{};
 
     std::shared_ptr<Common::DynamicLibrary> m_driver_library;
+
+    bool m_first_frame = false;
 };

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

@@ -372,8 +372,6 @@ void EmulationSession::RunEmulation() {
         m_system.InitializeDebugger();
     }
 
-    OnEmulationStarted();
-
     while (true) {
         {
             [[maybe_unused]] std::unique_lock lock(m_mutex);

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

@@ -52,9 +52,10 @@ public:
     void OnGamepadDisconnectEvent([[maybe_unused]] int index);
     SoftwareKeyboard::AndroidKeyboard* SoftwareKeyboard();
 
+    static void OnEmulationStarted();
+
 private:
     static void LoadDiskCacheProgress(VideoCore::LoadCallbackStage stage, int progress, int max);
-    static void OnEmulationStarted();
     static void OnEmulationStopped(Core::SystemResultStatus result);
 
 private:

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

@@ -13,7 +13,7 @@ struct Values {
     Settings::Linkage linkage;
 
     // Android
-    Settings::Setting<bool> picture_in_picture{linkage, true, "picture_in_picture",
+    Settings::Setting<bool> picture_in_picture{linkage, false, "picture_in_picture",
                                                Settings::Category::Android};
     Settings::Setting<s32> screen_layout{linkage,
                                          5,

src/android/app/src/main/res/drawable/ic_audio.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24"
+    android:viewportWidth="24">
+    <path
+        android:fillColor="?attr/colorControlNormal"
+        android:pathData="M3,9v6h4l5,5L12,4L7,9L3,9zM16.5,12c0,-1.77 -1.02,-3.29 -2.5,-4.03v8.05c1.48,-0.73 2.5,-2.25 2.5,-4.02zM14,3.23v2.06c2.89,0.86 5,3.54 5,6.71s-2.11,5.85 -5,6.71v2.06c4.01,-0.91 7,-4.49 7,-8.77s-2.99,-7.86 -7,-8.77z" />
+</vector>

src/android/app/src/main/res/drawable/ic_code.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="?attr/colorControlNormal"
+      android:pathData="M320,720 L80,480l240,-240 57,57 -184,184 183,183 -56,56ZM640,720 L583,663 767,479 584,296 640,240 880,480 640,720Z"/>
+</vector>

src/android/app/src/main/res/drawable/ic_graphics.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="?attr/colorControlNormal"
+      android:pathData="M160,840q-33,0 -56.5,-23.5T80,760v-560q0,-33 23.5,-56.5T160,120h560q33,0 56.5,23.5T800,200v80h80v80h-80v80h80v80h-80v80h80v80h-80v80q0,33 -23.5,56.5T720,840L160,840ZM160,760h560v-560L160,200v560ZM240,680h200v-160L240,520v160ZM480,400h160v-120L480,280v120ZM240,480h200v-200L240,280v200ZM480,680h160v-240L480,440v240ZM160,200v560,-560Z"/>
+</vector>

src/android/app/src/main/res/drawable/ic_system_settings.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="?attr/colorControlNormal"
+      android:pathData="M320,960q-17,0 -28.5,-11.5T280,920q0,-17 11.5,-28.5T320,880q17,0 28.5,11.5T360,920q0,17 -11.5,28.5T320,960ZM480,960q-17,0 -28.5,-11.5T440,920q0,-17 11.5,-28.5T480,880q17,0 28.5,11.5T520,920q0,17 -11.5,28.5T480,960ZM640,960q-17,0 -28.5,-11.5T600,920q0,-17 11.5,-28.5T640,880q17,0 28.5,11.5T680,920q0,17 -11.5,28.5T640,960ZM320,800q-33,0 -56.5,-23.5T240,720v-640q0,-33 23.5,-56.5T320,0h320q33,0 56.5,23.5T720,80v640q0,33 -23.5,56.5T640,800L320,800ZM320,720h320v-40L320,680v40ZM320,600h320v-400L320,200v400ZM320,120h320v-40L320,80v40ZM320,120v-40,40ZM320,720v-40,40Z"/>
+</vector>

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

@@ -0,0 +1,233 @@
+<?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_about"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:fitsSystemWindows="true">
+
+        <com.google.android.material.appbar.MaterialToolbar
+            android:id="@+id/toolbar_about"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            app:navigationIcon="@drawable/ic_back"
+            app:title="@string/about" />
+
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <androidx.core.widget.NestedScrollView
+        android:id="@+id/scroll_about"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:fadeScrollbars="false"
+        android:scrollbars="vertical"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior">
+
+        <LinearLayout
+            android:id="@+id/content_about"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:orientation="horizontal">
+
+            <ImageView
+                android:id="@+id/image_logo"
+                android:layout_width="200dp"
+                android:layout_height="200dp"
+                android:layout_gravity="center_horizontal"
+                android:padding="20dp"
+                android:src="@drawable/ic_yuzu_title" />
+
+            <LinearLayout
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:orientation="vertical">
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="vertical"
+                    android:paddingHorizontal="16dp"
+                    android:paddingVertical="16dp">
+
+                    <com.google.android.material.textview.MaterialTextView
+                        style="@style/TextAppearance.Material3.TitleMedium"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_marginHorizontal="24dp"
+                        android:text="@string/about"
+                        android:textAlignment="viewStart" />
+
+                    <com.google.android.material.textview.MaterialTextView
+                        style="@style/TextAppearance.Material3.BodyMedium"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_marginHorizontal="24dp"
+                        android:layout_marginTop="6dp"
+                        android:text="@string/about_app_description"
+                        android:textAlignment="viewStart" />
+
+                </LinearLayout>
+
+                <com.google.android.material.divider.MaterialDivider
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="20dp" />
+
+                <LinearLayout
+                    android:id="@+id/button_contributors"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:background="?attr/selectableItemBackground"
+                    android:orientation="vertical"
+                    android:paddingHorizontal="16dp"
+                    android:paddingVertical="16dp">
+
+                    <com.google.android.material.textview.MaterialTextView
+                        style="@style/TextAppearance.Material3.TitleMedium"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_marginHorizontal="24dp"
+                        android:text="@string/contributors"
+                        android:textAlignment="viewStart" />
+
+                    <com.google.android.material.textview.MaterialTextView
+                        style="@style/TextAppearance.Material3.BodyMedium"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_marginHorizontal="24dp"
+                        android:layout_marginTop="6dp"
+                        android:text="@string/contributors_description"
+                        android:textAlignment="viewStart" />
+
+                </LinearLayout>
+
+                <com.google.android.material.divider.MaterialDivider
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="20dp" />
+
+                <LinearLayout
+                    android:id="@+id/button_licenses"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:background="?attr/selectableItemBackground"
+                    android:orientation="vertical"
+                    android:paddingHorizontal="16dp"
+                    android:paddingVertical="16dp">
+
+                    <com.google.android.material.textview.MaterialTextView
+                        style="@style/TextAppearance.Material3.TitleMedium"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_marginHorizontal="24dp"
+                        android:text="@string/licenses"
+                        android:textAlignment="viewStart" />
+
+                    <com.google.android.material.textview.MaterialTextView
+                        style="@style/TextAppearance.Material3.BodyMedium"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_marginHorizontal="24dp"
+                        android:layout_marginTop="6dp"
+                        android:text="@string/licenses_description"
+                        android:textAlignment="viewStart" />
+
+                </LinearLayout>
+
+                <com.google.android.material.divider.MaterialDivider
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="20dp" />
+
+                <LinearLayout
+                    android:id="@+id/button_build_hash"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:background="?attr/selectableItemBackground"
+                    android:orientation="vertical"
+                    android:paddingHorizontal="16dp"
+                    android:paddingVertical="16dp">
+
+                    <com.google.android.material.textview.MaterialTextView
+                        style="@style/TextAppearance.Material3.TitleMedium"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_marginHorizontal="24dp"
+                        android:text="@string/build"
+                        android:textAlignment="viewStart" />
+
+                    <com.google.android.material.textview.MaterialTextView
+                        android:id="@+id/text_build_hash"
+                        style="@style/TextAppearance.Material3.BodyMedium"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_marginHorizontal="24dp"
+                        android:layout_marginTop="6dp"
+                        android:textAlignment="viewStart"
+                        tools:text="abc123" />
+
+                </LinearLayout>
+
+                <com.google.android.material.divider.MaterialDivider
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="20dp" />
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="40dp"
+                    android:layout_marginTop="12dp"
+                    android:layout_marginBottom="16dp"
+                    android:gravity="center_horizontal"
+                    android:orientation="horizontal">
+
+                    <Button
+                        android:id="@+id/button_discord"
+                        style="?attr/materialIconButtonStyle"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        app:icon="@drawable/ic_discord"
+                        app:iconGravity="textEnd"
+                        app:iconSize="24dp"
+                        app:iconTint="?attr/colorOnSurface" />
+
+                    <Button
+                        android:id="@+id/button_website"
+                        style="?attr/materialIconButtonStyle"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        app:icon="@drawable/ic_website"
+                        app:iconGravity="textEnd"
+                        app:iconSize="24dp"
+                        app:iconTint="?attr/colorOnSurface" />
+
+                    <Button
+                        android:id="@+id/button_github"
+                        style="?attr/materialIconButtonStyle"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        app:icon="@drawable/ic_github"
+                        app:iconGravity="textEnd"
+                        app:iconSize="24dp"
+                        app:iconTint="?attr/colorOnSurface" />
+
+                </LinearLayout>
+
+            </LinearLayout>
+
+        </LinearLayout>
+
+    </androidx.core.widget.NestedScrollView>
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

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

@@ -6,8 +6,8 @@
     android:id="@+id/option_card"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:layout_marginVertical="12dp"
+    android:layout_marginBottom="24dp"
-    android:layout_marginHorizontal="16dp"
+    android:layout_marginHorizontal="12dp"
     android:background="?attr/selectableItemBackground"
     android:backgroundTint="?attr/colorSurfaceVariant"
     android:clickable="true"

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

@@ -38,17 +38,17 @@
 
             <ImageView
                 android:id="@+id/image_logo"
-                android:layout_width="250dp"
+                android:layout_width="150dp"
-                android:layout_height="250dp"
+                android:layout_height="150dp"
-                android:layout_marginTop="20dp"
+                android:layout_marginTop="24dp"
+                android:layout_marginBottom="28dp"
                 android:layout_gravity="center_horizontal"
                 android:src="@drawable/ic_yuzu_title" />
 
             <com.google.android.material.divider.MaterialDivider
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:layout_marginHorizontal="20dp"
+                android:layout_marginHorizontal="20dp" />
-                android:layout_marginTop="28dp" />
 
             <LinearLayout
                 android:layout_width="match_parent"

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

@@ -139,7 +139,7 @@
 
             <com.google.android.material.textview.MaterialTextView
                 android:id="@+id/show_fps_text"
-                style="@style/TextAppearance.Material3.BodyMedium"
+                style="@style/TextAppearance.Material3.BodySmall"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_gravity="left"
@@ -147,7 +147,8 @@
                 android:focusable="false"
                 android:paddingHorizontal="20dp"
                 android:textColor="@android:color/white"
-                android:textSize="12sp"
+                android:shadowColor="@android:color/black"
+                android:shadowRadius="3"
                 tools:ignore="RtlHardcoded" />
 
         </FrameLayout>

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

@@ -14,13 +14,14 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:orientation="vertical"
-        android:background="?attr/colorSurface">
+        android:background="?attr/colorSurface"
+        android:paddingHorizontal="8dp">
 
         <ImageView
             android:id="@+id/logo_image"
-            android:layout_width="128dp"
+            android:layout_width="96dp"
-            android:layout_height="128dp"
+            android:layout_height="96dp"
-            android:layout_margin="64dp"
+            android:layout_marginVertical="32dp"
             android:layout_gravity="center_horizontal"
             android:src="@drawable/ic_yuzu_full" />
 

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

@@ -10,7 +10,22 @@
     android:focusable="true"
     android:gravity="center_vertical"
     android:minHeight="72dp"
-    android:padding="@dimen/spacing_large">
+    android:padding="16dp">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+
+        <ImageView
+            android:id="@+id/icon"
+            android:layout_width="24dp"
+            android:layout_height="24dp"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="24dp"
+            android:layout_gravity="center_vertical"
+            android:visibility="gone"
+            app:tint="?attr/colorOnSurface" />
 
         <LinearLayout
             android:layout_width="match_parent"
@@ -23,7 +38,7 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:textAlignment="viewStart"
-            android:textSize="16sp"
+                android:textSize="17sp"
                 app:lineHeight="22dp"
                 tools:text="Setting Name" />
 
@@ -44,8 +59,11 @@
                 android:layout_marginTop="@dimen/spacing_small"
                 android:textAlignment="viewStart"
                 android:textStyle="bold"
+                android:textSize="13sp"
                 tools:text="1x" />
 
         </LinearLayout>
 
+    </LinearLayout>
+
 </RelativeLayout>

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

@@ -8,9 +8,7 @@
     android:clickable="true"
     android:focusable="true"
     android:minHeight="72dp"
-    android:paddingVertical="@dimen/spacing_large"
+    android:padding="16dp">
-    android:paddingStart="@dimen/spacing_large"
-    android:paddingEnd="24dp">
 
     <com.google.android.material.materialswitch.MaterialSwitch
         android:id="@+id/switch_widget"
@@ -24,7 +22,7 @@
         android:layout_height="wrap_content"
         android:layout_alignParentTop="true"
         android:layout_centerVertical="true"
-        android:layout_marginEnd="@dimen/spacing_large"
+        android:layout_marginEnd="24dp"
         android:layout_toStartOf="@+id/switch_widget"
         android:gravity="center_vertical"
         android:orientation="vertical">
@@ -35,7 +33,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:textAlignment="viewStart"
-            android:textSize="16sp"
+            android:textSize="17sp"
             app:lineHeight="28dp"
             tools:text="@string/frame_limit_enable" />
 

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

@@ -7,7 +7,8 @@
     android:layout_height="wrap_content"
     android:layout_gravity="start|center_vertical"
     android:paddingHorizontal="@dimen/spacing_large"
-    android:paddingVertical="16dp"
+    android:paddingTop="16dp"
+    android:paddingBottom="8dp"
     android:textAlignment="viewStart"
     android:textColor="?attr/colorPrimary"
     android:textStyle="bold"

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

@@ -2,7 +2,6 @@
 <resources>
 
     <string-array name="regionNames">
-        <item>@string/auto</item>
         <item>@string/region_australia</item>
         <item>@string/region_china</item>
         <item>@string/region_europe</item>
@@ -13,7 +12,6 @@
     </string-array>
 
     <integer-array name="regionValues">
-        <item>-1</item>
         <item>3</item>
         <item>4</item>
         <item>2</item>
@@ -177,6 +175,16 @@
         <item>2</item>
     </integer-array>
 
+    <string-array name="cpuBackendNames">
+        <item>@string/cpu_backend_dynarmic</item>
+        <item>@string/cpu_backend_nce</item>
+    </string-array>
+
+    <integer-array name="cpuBackendValues">
+        <item>0</item>
+        <item>1</item>
+    </integer-array>
+
     <string-array name="cpuAccuracyNames">
         <item>@string/auto</item>
         <item>@string/cpu_accuracy_accurate</item>

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

@@ -184,6 +184,7 @@
     <string name="frame_limit_enable_description">Limits emulation speed to a specified percentage of normal speed.</string>
     <string name="frame_limit_slider">Limit speed percent</string>
     <string name="frame_limit_slider_description">Specifies the percentage to limit emulation speed. 100% is the normal speed. Values higher or lower will increase or decrease the speed limit.</string>
+    <string name="cpu_backend">CPU Backend</string>
     <string name="cpu_accuracy">CPU accuracy</string>
     <string name="value_with_units">%1$s%2$s</string>
 
@@ -240,6 +241,7 @@
     <string name="shutting_down">Shutting down…</string>
     <string name="reset_setting_confirmation">Do you want to reset this setting back to its default value?</string>
     <string name="reset_to_default">Reset to default</string>
+    <string name="reset_to_default_description">Resets all advanced settings</string>
     <string name="reset_all_settings">Reset all settings?</string>
     <string name="reset_all_settings_description">All advanced settings will be reset to their default configuration. This can not be undone.</string>
     <string name="settings_reset">Settings reset</string>
@@ -271,10 +273,14 @@
     <string name="preferences_settings">Settings</string>
     <string name="preferences_general">General</string>
     <string name="preferences_system">System</string>
+    <string name="preferences_system_description">Docked mode, region, language</string>
     <string name="preferences_graphics">Graphics</string>
+    <string name="preferences_graphics_description">Accuracy level, resolution, shader cache</string>
     <string name="preferences_audio">Audio</string>
+    <string name="preferences_audio_description">Output engine, volume</string>
     <string name="preferences_theme">Theme and color</string>
     <string name="preferences_debug">Debug</string>
+    <string name="preferences_debug_description">CPU/GPU debugging, graphics API, fastmem</string>
 
     <!-- ROM loading errors -->
     <string name="loader_error_encrypted">Your ROM is encrypted</string>
@@ -409,6 +415,10 @@
     <string name="ratio_force_sixteen_ten">Force 16:10</string>
     <string name="ratio_stretch">Stretch to window</string>
 
+    <!-- CPU Backend -->
+    <string name="cpu_backend_dynarmic">Dynarmic (Slow)</string>
+    <string name="cpu_backend_nce">Native code execution (NCE)</string>
+
     <!-- CPU Accuracy -->
     <string name="cpu_accuracy_accurate">Accurate</string>
     <string name="cpu_accuracy_unsafe">Unsafe</string>

src/audio_core/adsp/apps/opus/opus_multistream_decode_object.cpp

@@ -12,7 +12,7 @@ bool IsValidChannelCount(u32 channel_count) {
 }
 
 bool IsValidStreamCounts(u32 total_stream_count, u32 stereo_stream_count) {
-    return total_stream_count > 0 && stereo_stream_count > 0 &&
+    return total_stream_count > 0 && static_cast<s32>(stereo_stream_count) >= 0 &&
            stereo_stream_count <= total_stream_count && IsValidChannelCount(total_stream_count);
 }
 } // namespace

src/audio_core/opus/decoder.cpp

@@ -148,7 +148,7 @@ Result OpusDecoder::DecodeInterleavedForMultiStream(u32* out_data_size, u64* out
     auto* header_p{reinterpret_cast<const OpusPacketHeader*>(input_data.data())};
     OpusPacketHeader header{ReverseHeader(*header_p)};
 
-    LOG_ERROR(Service_Audio, "header size 0x{:X} input data size 0x{:X} in_data size 0x{:X}",
+    LOG_TRACE(Service_Audio, "header size 0x{:X} input data size 0x{:X} in_data size 0x{:X}",
               header.size, input_data.size_bytes(), in_data.size_bytes());
 
     R_UNLESS(in_data.size_bytes() >= header.size &&

src/audio_core/sink/cubeb_sink.cpp

@@ -146,7 +146,7 @@ public:
             return;
         }
 
-        paused = true;
+        SignalPause();
         if (cubeb_stream_stop(stream_backend) != CUBEB_OK) {
             LOG_CRITICAL(Audio_Sink, "Error stopping cubeb stream");
         }

src/audio_core/sink/sdl2_sink.cpp

@@ -111,7 +111,7 @@ public:
         if (device == 0 || paused) {
             return;
         }
-        paused = true;
+        SignalPause();
         SDL_PauseAudioDevice(device, 1);
     }
 

src/audio_core/sink/sink_stream.cpp

@@ -282,11 +282,19 @@ u64 SinkStream::GetExpectedPlayedSampleCount() {
 void SinkStream::WaitFreeSpace(std::stop_token stop_token) {
     std::unique_lock lk{release_mutex};
     release_cv.wait_for(lk, std::chrono::milliseconds(5),
-                        [this]() { return queued_buffers < max_queue_size; });
+                        [this]() { return paused || queued_buffers < max_queue_size; });
     if (queued_buffers > max_queue_size + 3) {
         Common::CondvarWait(release_cv, lk, stop_token,
-                            [this] { return queued_buffers < max_queue_size; });
+                            [this] { return paused || queued_buffers < max_queue_size; });
     }
 }
 
+void SinkStream::SignalPause() {
+    {
+        std::scoped_lock lk{release_mutex};
+        paused = true;
+    }
+    release_cv.notify_one();
+}
+
 } // namespace AudioCore::Sink

src/audio_core/sink/sink_stream.h

@@ -213,6 +213,12 @@ public:
      */
     void WaitFreeSpace(std::stop_token stop_token);
 
+protected:
+    /**
+     * Unblocks the ADSP if the stream is paused.
+     */
+    void SignalPause();
+
 protected:
     /// Core system
     Core::System& system;

src/common/CMakeLists.txt

@@ -52,6 +52,7 @@ add_library(common STATIC
     fiber.cpp
     fiber.h
     fixed_point.h
+    free_region_manager.h
     fs/file.cpp
     fs/file.h
     fs/fs.cpp
@@ -166,6 +167,13 @@ if (WIN32)
   target_link_libraries(common PRIVATE ntdll)
 endif()
 
+if (NOT WIN32)
+  target_sources(common PRIVATE
+    signal_chain.cpp
+    signal_chain.h
+  )
+endif()
+
 if(ANDROID)
     target_sources(common
         PRIVATE

src/common/free_region_manager.h

@@ -0,0 +1,55 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+#include <boost/icl/interval_set.hpp>
+
+namespace Common {
+
+class FreeRegionManager {
+public:
+    explicit FreeRegionManager() = default;
+    ~FreeRegionManager() = default;
+
+    void SetAddressSpace(void* start, size_t size) {
+        this->FreeBlock(start, size);
+    }
+
+    std::pair<void*, size_t> FreeBlock(void* block_ptr, size_t size) {
+        std::scoped_lock lk(m_mutex);
+
+        // Check to see if we are adjacent to any regions.
+        auto start_address = reinterpret_cast<uintptr_t>(block_ptr);
+        auto end_address = start_address + size;
+        auto it = m_free_regions.find({start_address - 1, end_address + 1});
+
+        // If we are, join with them, ensuring we stay in bounds.
+        if (it != m_free_regions.end()) {
+            start_address = std::min(start_address, it->lower());
+            end_address = std::max(end_address, it->upper());
+        }
+
+        // Free the relevant region.
+        m_free_regions.insert({start_address, end_address});
+
+        // Return the adjusted pointers.
+        block_ptr = reinterpret_cast<void*>(start_address);
+        size = end_address - start_address;
+        return {block_ptr, size};
+    }
+
+    void AllocateBlock(void* block_ptr, size_t size) {
+        std::scoped_lock lk(m_mutex);
+
+        auto address = reinterpret_cast<uintptr_t>(block_ptr);
+        m_free_regions.subtract({address, address + size});
+    }
+
+private:
+    std::mutex m_mutex;
+    boost::icl::interval_set<uintptr_t> m_free_regions;
+};
+
+} // namespace Common

src/common/host_memory.cpp

@@ -21,15 +21,18 @@
 #include <boost/icl/interval_set.hpp>
 #include <fcntl.h>
 #include <sys/mman.h>
+#include <sys/random.h>
 #include <unistd.h>
 #include "common/scope_exit.h"
 
 #endif // ^^^ Linux ^^^
 
 #include <mutex>
+#include <random>
 
 #include "common/alignment.h"
 #include "common/assert.h"
+#include "common/free_region_manager.h"
 #include "common/host_memory.h"
 #include "common/logging/log.h"
 
@@ -141,7 +144,7 @@ public:
         Release();
     }
 
-    void Map(size_t virtual_offset, size_t host_offset, size_t length) {
+    void Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perms) {
         std::unique_lock lock{placeholder_mutex};
         if (!IsNiechePlaceholder(virtual_offset, length)) {
             Split(virtual_offset, length);
@@ -160,7 +163,7 @@ public:
         }
     }
 
-    void Protect(size_t virtual_offset, size_t length, bool read, bool write) {
+    void Protect(size_t virtual_offset, size_t length, bool read, bool write, bool execute) {
         DWORD new_flags{};
         if (read && write) {
             new_flags = PAGE_READWRITE;
@@ -186,6 +189,11 @@ public:
         }
     }
 
+    void EnableDirectMappedAddress() {
+        // TODO
+        UNREACHABLE();
+    }
+
     const size_t backing_size; ///< Size of the backing memory in bytes
     const size_t virtual_size; ///< Size of the virtual address placeholder in bytes
 
@@ -353,6 +361,64 @@ private:
 
 #elif defined(__linux__) || defined(__FreeBSD__) // ^^^ Windows ^^^ vvv Linux vvv
 
+#ifdef ARCHITECTURE_arm64
+
+static uint64_t GetRandomU64() {
+    uint64_t ret;
+    ASSERT(getrandom(&ret, sizeof(ret), 0) == 0);
+    return ret;
+}
+
+static void* ChooseVirtualBase(size_t virtual_size) {
+    constexpr uintptr_t Map39BitSize = (1ULL << 39);
+    constexpr uintptr_t Map36BitSize = (1ULL << 36);
+
+    // Seed the MT with some initial strong randomness.
+    //
+    // This is not a cryptographic application, we just want something more
+    // random than the current time.
+    std::mt19937_64 rng(GetRandomU64());
+
+    // We want to ensure we are allocating at an address aligned to the L2 block size.
+    // For Qualcomm devices, we must also allocate memory above 36 bits.
+    const size_t lower = Map36BitSize / HugePageSize;
+    const size_t upper = (Map39BitSize - virtual_size) / HugePageSize;
+    const size_t range = upper - lower;
+
+    // Try up to 64 times to allocate memory at random addresses in the range.
+    for (int i = 0; i < 64; i++) {
+        // Calculate a possible location.
+        uintptr_t hint_address = ((rng() % range) + lower) * HugePageSize;
+
+        // Try to map.
+        // Note: we may be able to take advantage of MAP_FIXED_NOREPLACE here.
+        void* map_pointer =
+            mmap(reinterpret_cast<void*>(hint_address), virtual_size, PROT_READ | PROT_WRITE,
+                 MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0);
+
+        // If we successfully mapped, we're done.
+        if (reinterpret_cast<uintptr_t>(map_pointer) == hint_address) {
+            return map_pointer;
+        }
+
+        // Unmap if necessary, and try again.
+        if (map_pointer != MAP_FAILED) {
+            munmap(map_pointer, virtual_size);
+        }
+    }
+
+    return MAP_FAILED;
+}
+
+#else
+
+static void* ChooseVirtualBase(size_t virtual_size) {
+    return mmap(nullptr, virtual_size, PROT_READ | PROT_WRITE,
+                MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0);
+}
+
+#endif
+
 class HostMemory::Impl {
 public:
     explicit Impl(size_t backing_size_, size_t virtual_size_)
@@ -415,8 +481,7 @@ public:
             }
         }
 #else
-        virtual_base = static_cast<u8*>(mmap(nullptr, virtual_size, PROT_NONE,
+        virtual_base = virtual_map_base = static_cast<u8*>(ChooseVirtualBase(virtual_size));
-                                             MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0));
         if (virtual_base == MAP_FAILED) {
             LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno));
             throw std::bad_alloc{};
@@ -424,7 +489,7 @@ public:
         madvise(virtual_base, virtual_size, MADV_HUGEPAGE);
 #endif
 
-        placeholders.add({0, virtual_size});
+        free_manager.SetAddressSpace(virtual_base, virtual_size);
         good = true;
     }
 
@@ -432,14 +497,29 @@ public:
         Release();
     }
 
-    void Map(size_t virtual_offset, size_t host_offset, size_t length) {
+    void Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perms) {
-        {
+        // Intersect the range with our address space.
-            std::scoped_lock lock{placeholder_mutex};
+        AdjustMap(&virtual_offset, &length);
-            placeholders.subtract({virtual_offset, virtual_offset + length});
-        }
 
-        void* ret = mmap(virtual_base + virtual_offset, length, PROT_READ | PROT_WRITE,
+        // We are removing a placeholder.
-                         MAP_SHARED | MAP_FIXED, fd, host_offset);
+        free_manager.AllocateBlock(virtual_base + virtual_offset, length);
+
+        // Deduce mapping protection flags.
+        int flags = PROT_NONE;
+        if (True(perms & MemoryPermission::Read)) {
+            flags |= PROT_READ;
+        }
+        if (True(perms & MemoryPermission::Write)) {
+            flags |= PROT_WRITE;
+        }
+#ifdef ARCHITECTURE_arm64
+        if (True(perms & MemoryPermission::Execute)) {
+            flags |= PROT_EXEC;
+        }
+#endif
+
+        void* ret = mmap(virtual_base + virtual_offset, length, flags, MAP_SHARED | MAP_FIXED, fd,
+                         host_offset);
         ASSERT_MSG(ret != MAP_FAILED, "mmap failed: {}", strerror(errno));
     }
 
@@ -447,47 +527,54 @@ public:
         // The method name is wrong. We're still talking about the virtual range.
         // We don't want to unmap, we want to reserve this memory.
 
-        {
+        // Intersect the range with our address space.
-            std::scoped_lock lock{placeholder_mutex};
+        AdjustMap(&virtual_offset, &length);
-            auto it = placeholders.find({virtual_offset - 1, virtual_offset + length + 1});
 
-            if (it != placeholders.end()) {
+        // Merge with any adjacent placeholder mappings.
-                size_t prev_upper = virtual_offset + length;
+        auto [merged_pointer, merged_size] =
-                virtual_offset = std::min(virtual_offset, it->lower());
+            free_manager.FreeBlock(virtual_base + virtual_offset, length);
-                length = std::max(it->upper(), prev_upper) - virtual_offset;
-            }
 
-            placeholders.add({virtual_offset, virtual_offset + length});
+        void* ret = mmap(merged_pointer, merged_size, PROT_NONE,
-        }
-
-        void* ret = mmap(virtual_base + virtual_offset, length, PROT_NONE,
                          MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
         ASSERT_MSG(ret != MAP_FAILED, "mmap failed: {}", strerror(errno));
     }
 
-    void Protect(size_t virtual_offset, size_t length, bool read, bool write) {
+    void Protect(size_t virtual_offset, size_t length, bool read, bool write, bool execute) {
-        int flags = 0;
+        // Intersect the range with our address space.
+        AdjustMap(&virtual_offset, &length);
+
+        int flags = PROT_NONE;
         if (read) {
             flags |= PROT_READ;
         }
         if (write) {
             flags |= PROT_WRITE;
         }
+#ifdef ARCHITECTURE_arm64
+        if (execute) {
+            flags |= PROT_EXEC;
+        }
+#endif
         int ret = mprotect(virtual_base + virtual_offset, length, flags);
         ASSERT_MSG(ret == 0, "mprotect failed: {}", strerror(errno));
     }
 
+    void EnableDirectMappedAddress() {
+        virtual_base = nullptr;
+    }
+
     const size_t backing_size; ///< Size of the backing memory in bytes
     const size_t virtual_size; ///< Size of the virtual address placeholder in bytes
 
     u8* backing_base{reinterpret_cast<u8*>(MAP_FAILED)};
     u8* virtual_base{reinterpret_cast<u8*>(MAP_FAILED)};
+    u8* virtual_map_base{reinterpret_cast<u8*>(MAP_FAILED)};
 
 private:
     /// Release all resources in the object
     void Release() {
-        if (virtual_base != MAP_FAILED) {
+        if (virtual_map_base != MAP_FAILED) {
-            int ret = munmap(virtual_base, virtual_size);
+            int ret = munmap(virtual_map_base, virtual_size);
             ASSERT_MSG(ret == 0, "munmap failed: {}", strerror(errno));
         }
 
@@ -502,10 +589,29 @@ private:
         }
     }
 
-    int fd{-1}; // memfd file descriptor, -1 is the error value of memfd_create
+    void AdjustMap(size_t* virtual_offset, size_t* length) {
+        if (virtual_base != nullptr) {
+            return;
+        }
 
-    boost::icl::interval_set<size_t> placeholders; ///< Mapped placeholders
+        // If we are direct mapped, we want to make sure we are operating on a region
-    std::mutex placeholder_mutex;                  ///< Mutex for placeholders
+        // that is in range of our virtual mapping.
+        size_t intended_start = *virtual_offset;
+        size_t intended_end = intended_start + *length;
+        size_t address_space_start = reinterpret_cast<size_t>(virtual_map_base);
+        size_t address_space_end = address_space_start + virtual_size;
+
+        if (address_space_start > intended_end || intended_start > address_space_end) {
+            *virtual_offset = 0;
+            *length = 0;
+        } else {
+            *virtual_offset = std::max(intended_start, address_space_start);
+            *length = std::min(intended_end, address_space_end) - *virtual_offset;
+        }
+    }
+
+    int fd{-1}; // memfd file descriptor, -1 is the error value of memfd_create
+    FreeRegionManager free_manager{};
 };
 
 #else // ^^^ Linux ^^^ vvv Generic vvv
@@ -518,11 +624,11 @@ public:
         throw std::bad_alloc{};
     }
 
-    void Map(size_t virtual_offset, size_t host_offset, size_t length) {}
+    void Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perm) {}
 
     void Unmap(size_t virtual_offset, size_t length) {}
 
-    void Protect(size_t virtual_offset, size_t length, bool read, bool write) {}
+    void Protect(size_t virtual_offset, size_t length, bool read, bool write, bool execute) {}
 
     u8* backing_base{nullptr};
     u8* virtual_base{nullptr};
@@ -535,15 +641,16 @@ HostMemory::HostMemory(size_t backing_size_, size_t virtual_size_)
     try {
         // Try to allocate a fastmem arena.
         // The implementation will fail with std::bad_alloc on errors.
-        impl = std::make_unique<HostMemory::Impl>(AlignUp(backing_size, PageAlignment),
+        impl =
-                                                  AlignUp(virtual_size, PageAlignment) +
+            std::make_unique<HostMemory::Impl>(AlignUp(backing_size, PageAlignment),
-                                                      3 * HugePageSize);
+                                               AlignUp(virtual_size, PageAlignment) + HugePageSize);
         backing_base = impl->backing_base;
         virtual_base = impl->virtual_base;
 
         if (virtual_base) {
-            virtual_base += 2 * HugePageSize - 1;
+            // Ensure the virtual base is aligned to the L2 block size.
-            virtual_base -= reinterpret_cast<size_t>(virtual_base) & (HugePageSize - 1);
+            virtual_base = reinterpret_cast<u8*>(
+                Common::AlignUp(reinterpret_cast<uintptr_t>(virtual_base), HugePageSize));
             virtual_base_offset = virtual_base - impl->virtual_base;
         }
 
@@ -562,7 +669,8 @@ HostMemory::HostMemory(HostMemory&&) noexcept = default;
 
 HostMemory& HostMemory::operator=(HostMemory&&) noexcept = default;
 
-void HostMemory::Map(size_t virtual_offset, size_t host_offset, size_t length) {
+void HostMemory::Map(size_t virtual_offset, size_t host_offset, size_t length,
+                     MemoryPermission perms) {
     ASSERT(virtual_offset % PageAlignment == 0);
     ASSERT(host_offset % PageAlignment == 0);
     ASSERT(length % PageAlignment == 0);
@@ -571,7 +679,7 @@ void HostMemory::Map(size_t virtual_offset, size_t host_offset, size_t length) {
     if (length == 0 || !virtual_base || !impl) {
         return;
     }
-    impl->Map(virtual_offset + virtual_base_offset, host_offset, length);
+    impl->Map(virtual_offset + virtual_base_offset, host_offset, length, perms);
 }
 
 void HostMemory::Unmap(size_t virtual_offset, size_t length) {
@@ -584,14 +692,22 @@ void HostMemory::Unmap(size_t virtual_offset, size_t length) {
     impl->Unmap(virtual_offset + virtual_base_offset, length);
 }
 
-void HostMemory::Protect(size_t virtual_offset, size_t length, bool read, bool write) {
+void HostMemory::Protect(size_t virtual_offset, size_t length, bool read, bool write,
+                         bool execute) {
     ASSERT(virtual_offset % PageAlignment == 0);
     ASSERT(length % PageAlignment == 0);
     ASSERT(virtual_offset + length <= virtual_size);
     if (length == 0 || !virtual_base || !impl) {
         return;
     }
-    impl->Protect(virtual_offset + virtual_base_offset, length, read, write);
+    impl->Protect(virtual_offset + virtual_base_offset, length, read, write, execute);
+}
+
+void HostMemory::EnableDirectMappedAddress() {
+    if (impl) {
+        impl->EnableDirectMappedAddress();
+        virtual_size += reinterpret_cast<uintptr_t>(virtual_base);
+    }
 }
 
 } // namespace Common

src/common/host_memory.h

@@ -4,11 +4,20 @@
 #pragma once
 
 #include <memory>
+#include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "common/virtual_buffer.h"
 
 namespace Common {
 
+enum class MemoryPermission : u32 {
+    Read = 1 << 0,
+    Write = 1 << 1,
+    ReadWrite = Read | Write,
+    Execute = 1 << 2,
+};
+DECLARE_ENUM_FLAG_OPERATORS(MemoryPermission)
+
 /**
  * A low level linear memory buffer, which supports multiple mappings
  * Its purpose is to rebuild a given sparse memory layout, including mirrors.
@@ -31,11 +40,13 @@ public:
     HostMemory(HostMemory&& other) noexcept;
     HostMemory& operator=(HostMemory&& other) noexcept;
 
-    void Map(size_t virtual_offset, size_t host_offset, size_t length);
+    void Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perms);
 
     void Unmap(size_t virtual_offset, size_t length);
 
-    void Protect(size_t virtual_offset, size_t length, bool read, bool write);
+    void Protect(size_t virtual_offset, size_t length, bool read, bool write, bool execute = false);
+
+    void EnableDirectMappedAddress();
 
     [[nodiscard]] u8* BackingBasePointer() noexcept {
         return backing_base;

src/common/page_table.cpp

@@ -9,12 +9,12 @@ PageTable::PageTable() = default;
 
 PageTable::~PageTable() noexcept = default;
 
-bool PageTable::BeginTraversal(TraversalEntry& out_entry, TraversalContext& out_context,
+bool PageTable::BeginTraversal(TraversalEntry* out_entry, TraversalContext* out_context,
-                               u64 address) const {
+                               Common::ProcessAddress address) const {
     // Setup invalid defaults.
-    out_entry.phys_addr = 0;
+    out_entry->phys_addr = 0;
-    out_entry.block_size = page_size;
+    out_entry->block_size = page_size;
-    out_context.next_page = 0;
+    out_context->next_page = 0;
 
     // Validate that we can read the actual entry.
     const auto page = address / page_size;
@@ -29,20 +29,20 @@ bool PageTable::BeginTraversal(TraversalEntry& out_entry, TraversalContext& out_
     }
 
     // Populate the results.
-    out_entry.phys_addr = phys_addr + address;
+    out_entry->phys_addr = phys_addr + GetInteger(address);
-    out_context.next_page = page + 1;
+    out_context->next_page = page + 1;
-    out_context.next_offset = address + page_size;
+    out_context->next_offset = GetInteger(address) + page_size;
 
     return true;
 }
 
-bool PageTable::ContinueTraversal(TraversalEntry& out_entry, TraversalContext& context) const {
+bool PageTable::ContinueTraversal(TraversalEntry* out_entry, TraversalContext* context) const {
     // Setup invalid defaults.
-    out_entry.phys_addr = 0;
+    out_entry->phys_addr = 0;
-    out_entry.block_size = page_size;
+    out_entry->block_size = page_size;
 
     // Validate that we can read the actual entry.
-    const auto page = context.next_page;
+    const auto page = context->next_page;
     if (page >= backing_addr.size()) {
         return false;
     }
@@ -54,9 +54,9 @@ bool PageTable::ContinueTraversal(TraversalEntry& out_entry, TraversalContext& c
     }
 
     // Populate the results.
-    out_entry.phys_addr = phys_addr + context.next_offset;
+    out_entry->phys_addr = phys_addr + context->next_offset;
-    context.next_page = page + 1;
+    context->next_page = page + 1;
-    context.next_offset += page_size;
+    context->next_offset += page_size;
 
     return true;
 }

src/common/page_table.h

@@ -6,6 +6,7 @@
 #include <atomic>
 
 #include "common/common_types.h"
+#include "common/typed_address.h"
 #include "common/virtual_buffer.h"
 
 namespace Common {
@@ -100,9 +101,9 @@ struct PageTable {
     PageTable(PageTable&&) noexcept = default;
     PageTable& operator=(PageTable&&) noexcept = default;
 
-    bool BeginTraversal(TraversalEntry& out_entry, TraversalContext& out_context,
+    bool BeginTraversal(TraversalEntry* out_entry, TraversalContext* out_context,
-                        u64 address) const;
+                        Common::ProcessAddress address) const;
-    bool ContinueTraversal(TraversalEntry& out_entry, TraversalContext& context) const;
+    bool ContinueTraversal(TraversalEntry* out_entry, TraversalContext* context) const;
 
     /**
      * Resizes the page table to be able to accommodate enough pages within
@@ -117,6 +118,16 @@ struct PageTable {
         return current_address_space_width_in_bits;
     }
 
+    bool GetPhysicalAddress(Common::PhysicalAddress* out_phys_addr,
+                            Common::ProcessAddress virt_addr) const {
+        if (virt_addr > (1ULL << this->GetAddressSpaceBits())) {
+            return false;
+        }
+
+        *out_phys_addr = backing_addr[virt_addr / page_size] + GetInteger(virt_addr);
+        return true;
+    }
+
     /**
      * Vector of memory pointers backing each page. An entry can only be non-null if the
      * corresponding attribute element is of type `Memory`.

src/common/settings.cpp

@@ -41,6 +41,7 @@ SWITCHABLE(AspectRatio, true);
 SWITCHABLE(AstcDecodeMode, true);
 SWITCHABLE(AstcRecompression, true);
 SWITCHABLE(AudioMode, true);
+SWITCHABLE(CpuBackend, true);
 SWITCHABLE(CpuAccuracy, true);
 SWITCHABLE(FullscreenMode, true);
 SWITCHABLE(GpuAccuracy, true);
@@ -155,6 +156,22 @@ bool IsFastmemEnabled() {
     return true;
 }
 
+static bool is_nce_enabled = false;
+
+void SetNceEnabled(bool is_39bit) {
+    const bool is_nce_selected = values.cpu_backend.GetValue() == CpuBackend::Nce;
+    is_nce_enabled = is_nce_selected && is_39bit;
+    if (is_nce_selected && !is_nce_enabled) {
+        LOG_WARNING(
+            Common,
+            "Program does not utilize 39-bit address space, unable to natively execute code");
+    }
+}
+
+bool IsNceEnabled() {
+    return is_nce_enabled;
+}
+
 bool IsDockedMode() {
     return values.use_docked_mode.GetValue() == Settings::ConsoleMode::Docked;
 }
@@ -203,6 +220,8 @@ const char* TranslateCategory(Category category) {
     case Category::Ui:
     case Category::UiGeneral:
         return "UI";
+    case Category::UiAudio:
+        return "UiAudio";
     case Category::UiLayout:
         return "UiLayout";
     case Category::UiGameList:

src/common/settings.h

@@ -63,6 +63,7 @@ SWITCHABLE(AspectRatio, true);
 SWITCHABLE(AstcDecodeMode, true);
 SWITCHABLE(AstcRecompression, true);
 SWITCHABLE(AudioMode, true);
+SWITCHABLE(CpuBackend, true);
 SWITCHABLE(CpuAccuracy, true);
 SWITCHABLE(FullscreenMode, true);
 SWITCHABLE(GpuAccuracy, true);
@@ -153,7 +154,7 @@ struct Values {
                                        true,
                                        true};
     Setting<bool, false> audio_muted{
-        linkage, false, "audio_muted", Category::Audio, Specialization::Default, false, true};
+        linkage, false, "audio_muted", Category::Audio, Specialization::Default, true, true};
     Setting<bool, false> dump_audio_commands{
         linkage, false, "dump_audio_commands", Category::Audio, Specialization::Default, false};
 
@@ -179,6 +180,14 @@ struct Values {
                                              &use_speed_limit};
 
     // Cpu
+    SwitchableSetting<CpuBackend, true> cpu_backend{
+        linkage,         CpuBackend::Dynarmic, CpuBackend::Dynarmic,
+#ifdef ARCHITECTURE_arm64
+        CpuBackend::Nce,
+#else
+                                                    CpuBackend::Dynarmic,
+#endif
+        "cpu_backend",   Category::Cpu};
     SwitchableSetting<CpuAccuracy, true> cpu_accuracy{linkage,           CpuAccuracy::Auto,
                                                       CpuAccuracy::Auto, CpuAccuracy::Paranoid,
                                                       "cpu_accuracy",    Category::Cpu};
@@ -358,6 +367,8 @@ struct Values {
                                           Category::RendererDebug};
     // TODO: remove this once AMDVLK supports VK_EXT_depth_bias_control
     bool renderer_amdvlk_depth_bias_workaround{};
+    Setting<bool> disable_buffer_reorder{linkage, false, "disable_buffer_reorder",
+                                         Category::RendererDebug};
 
     // System
     SwitchableSetting<Language, true> language_index{linkage,
@@ -534,6 +545,8 @@ bool IsGPULevelExtreme();
 bool IsGPULevelHigh();
 
 bool IsFastmemEnabled();
+void SetNceEnabled(bool is_64bit);
+bool IsNceEnabled();
 
 bool IsDockedMode();
 

src/common/settings_common.h

@@ -32,6 +32,7 @@ enum class Category : u32 {
     AddOns,
     Controls,
     Ui,
+    UiAudio,
     UiGeneral,
     UiLayout,
     UiGameList,

src/common/settings_enums.h

@@ -129,6 +129,8 @@ ENUM(ShaderBackend, Glsl, Glasm, SpirV);
 
 ENUM(GpuAccuracy, Normal, High, Extreme);
 
+ENUM(CpuBackend, Dynarmic, Nce);
+
 ENUM(CpuAccuracy, Auto, Accurate, Unsafe, Paranoid);
 
 ENUM(MemoryLayout, Memory_4Gb, Memory_6Gb, Memory_8Gb);

src/common/settings_input.cpp

@@ -9,7 +9,8 @@ const std::array<const char*, NumButtons> mapping = {{
     "button_a",       "button_b",       "button_x",      "button_y",    "button_lstick",
     "button_rstick",  "button_l",       "button_r",      "button_zl",   "button_zr",
     "button_plus",    "button_minus",   "button_dleft",  "button_dup",  "button_dright",
-    "button_ddown",  "button_sl",    "button_sr",    "button_home", "button_screenshot",
+    "button_ddown",   "button_slleft",  "button_srleft", "button_home", "button_screenshot",
+    "button_slright", "button_srright",
 }};
 }
 

src/common/settings_input.h

@@ -29,12 +29,15 @@ enum Values : int {
     DRight,
     DDown,
 
-    SL,
+    SLLeft,
-    SR,
+    SRLeft,
 
     Home,
     Screenshot,
 
+    SLRight,
+    SRRight,
+
     NumButtons,
 };
 

src/common/signal_chain.cpp

@@ -0,0 +1,42 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <dlfcn.h>
+
+#include "common/assert.h"
+#include "common/dynamic_library.h"
+#include "common/scope_exit.h"
+#include "common/signal_chain.h"
+
+namespace Common {
+
+template <typename T>
+T* LookupLibcSymbol(const char* name) {
+#if defined(__BIONIC__)
+    Common::DynamicLibrary provider("libc.so");
+    if (!provider.IsOpen()) {
+        UNREACHABLE_MSG("Failed to open libc!");
+    }
+#else
+    // For other operating environments, we assume the symbol is not overridden.
+    const char* base = nullptr;
+    Common::DynamicLibrary provider(base);
+#endif
+
+    void* sym = provider.GetSymbolAddress(name);
+    if (sym == nullptr) {
+        sym = dlsym(RTLD_DEFAULT, name);
+    }
+    if (sym == nullptr) {
+        UNREACHABLE_MSG("Unable to find symbol {}!", name);
+    }
+
+    return reinterpret_cast<T*>(sym);
+}
+
+int SigAction(int signum, const struct sigaction* act, struct sigaction* oldact) {
+    static auto libc_sigaction = LookupLibcSymbol<decltype(sigaction)>("sigaction");
+    return libc_sigaction(signum, act, oldact);
+}
+
+} // namespace Common

src/common/signal_chain.h

@@ -0,0 +1,19 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#ifndef _WIN32
+
+#include <signal.h>
+
+namespace Common {
+
+// Android's ART overrides sigaction with its own wrapper. This is problematic for SIGSEGV
+// in particular, because ART's handler accesses tpidr_el0, which conflicts with NCE.
+// This extracts the libc symbol and calls it directly.
+int SigAction(int signum, const struct sigaction* act, struct sigaction* oldact);
+
+} // namespace Common
+
+#endif

src/core/CMakeLists.txt

@@ -271,8 +271,9 @@ add_library(core STATIC
     hle/kernel/k_page_heap.h
     hle/kernel/k_page_group.cpp
     hle/kernel/k_page_group.h
-    hle/kernel/k_page_table.cpp
     hle/kernel/k_page_table.h
+    hle/kernel/k_page_table_base.cpp
+    hle/kernel/k_page_table_base.h
     hle/kernel/k_page_table_manager.h
     hle/kernel/k_page_table_slab_heap.h
     hle/kernel/k_port.cpp
@@ -280,6 +281,7 @@ add_library(core STATIC
     hle/kernel/k_priority_queue.h
     hle/kernel/k_process.cpp
     hle/kernel/k_process.h
+    hle/kernel/k_process_page_table.h
     hle/kernel/k_readable_event.cpp
     hle/kernel/k_readable_event.h
     hle/kernel/k_resource_limit.cpp
@@ -330,8 +332,6 @@ add_library(core STATIC
     hle/kernel/physical_core.cpp
     hle/kernel/physical_core.h
     hle/kernel/physical_memory.h
-    hle/kernel/process_capability.cpp
-    hle/kernel/process_capability.h
     hle/kernel/slab_helpers.h
     hle/kernel/svc.cpp
     hle/kernel/svc.h
@@ -521,11 +521,21 @@ add_library(core STATIC
     hle/service/grc/grc.h
     hle/service/hid/hid.cpp
     hle/service/hid/hid.h
+    hle/service/hid/hid_debug_server.cpp
+    hle/service/hid/hid_debug_server.h
+    hle/service/hid/hid_firmware_settings.cpp
+    hle/service/hid/hid_firmware_settings.h
+    hle/service/hid/hid_server.cpp
+    hle/service/hid/hid_server.h
+    hle/service/hid/hid_system_server.cpp
+    hle/service/hid/hid_system_server.h
     hle/service/hid/hidbus.cpp
     hle/service/hid/hidbus.h
     hle/service/hid/irs.cpp
     hle/service/hid/irs.h
     hle/service/hid/irs_ring_lifo.h
+    hle/service/hid/resource_manager.cpp
+    hle/service/hid/resource_manager.h
     hle/service/hid/ring_lifo.h
     hle/service/hid/xcd.cpp
     hle/service/hid/xcd.h
@@ -715,6 +725,7 @@ add_library(core STATIC
     hle/service/nvnflinger/producer_listener.h
     hle/service/nvnflinger/status.h
     hle/service/nvnflinger/ui/fence.h
+    hle/service/nvnflinger/ui/graphic_buffer.cpp
     hle/service/nvnflinger/ui/graphic_buffer.h
     hle/service/nvnflinger/window.h
     hle/service/olsc/olsc.cpp
@@ -910,6 +921,22 @@ if (ENABLE_WEB_SERVICE)
     target_link_libraries(core PRIVATE web_service)
 endif()
 
+if (ARCHITECTURE_arm64)
+    enable_language(C ASM)
+    set(CMAKE_ASM_FLAGS "${CFLAGS} -x assembler-with-cpp")
+
+    target_sources(core PRIVATE
+        arm/nce/arm_nce.cpp
+        arm/nce/arm_nce.h
+        arm/nce/arm_nce.s
+        arm/nce/guest_context.h
+        arm/nce/patch.cpp
+        arm/nce/patch.h
+        arm/nce/instructions.h
+    )
+    target_link_libraries(core PRIVATE merry::oaknut)
+endif()
+
 if (ARCHITECTURE_x86_64 OR ARCHITECTURE_arm64)
     target_sources(core PRIVATE
         arm/dynarmic/arm_dynarmic.h

src/core/arm/arm_interface.cpp

@@ -153,6 +153,14 @@ void ARM_Interface::Run() {
         Kernel::KThread* current_thread{Kernel::GetCurrentThreadPointer(system.Kernel())};
         HaltReason hr{};
 
+        // If the thread is scheduled for termination, exit the thread.
+        if (current_thread->HasDpc()) {
+            if (current_thread->IsTerminationRequested()) {
+                current_thread->Exit();
+                UNREACHABLE();
+            }
+        }
+
         // Notify the debugger and go to sleep if a step was performed
         // and this thread has been scheduled again.
         if (current_thread->GetStepState() == StepState::StepPerformed) {
@@ -174,14 +182,6 @@ void ARM_Interface::Run() {
         }
         system.ExitCPUProfile();
 
-        // If the thread is scheduled for termination, exit the thread.
-        if (current_thread->HasDpc()) {
-            if (current_thread->IsTerminationRequested()) {
-                current_thread->Exit();
-                UNREACHABLE();
-            }
-        }
-
         // Notify the debugger and go to sleep if a breakpoint was hit,
         // or if the thread is unable to continue for any reason.
         if (True(hr & HaltReason::InstructionBreakpoint) || True(hr & HaltReason::PrefetchAbort)) {

src/core/arm/arm_interface.h

@@ -81,6 +81,9 @@ public:
     // thread context to be 800 bytes in size.
     static_assert(sizeof(ThreadContext64) == 0x320);
 
+    /// Perform any backend-specific initialization.
+    virtual void Initialize() {}
+
     /// Runs the CPU until an event happens
     void Run();
 

src/core/arm/nce/arm_nce.cpp

@@ -0,0 +1,392 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <cinttypes>
+#include <memory>
+
+#include "common/signal_chain.h"
+#include "core/arm/nce/arm_nce.h"
+#include "core/arm/nce/patch.h"
+#include "core/core.h"
+#include "core/memory.h"
+
+#include "core/hle/kernel/k_process.h"
+
+#include <signal.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+namespace Core {
+
+namespace {
+
+struct sigaction g_orig_action;
+
+// Verify assembly offsets.
+using NativeExecutionParameters = Kernel::KThread::NativeExecutionParameters;
+static_assert(offsetof(NativeExecutionParameters, native_context) == TpidrEl0NativeContext);
+static_assert(offsetof(NativeExecutionParameters, lock) == TpidrEl0Lock);
+static_assert(offsetof(NativeExecutionParameters, magic) == TpidrEl0TlsMagic);
+
+fpsimd_context* GetFloatingPointState(mcontext_t& host_ctx) {
+    _aarch64_ctx* header = reinterpret_cast<_aarch64_ctx*>(&host_ctx.__reserved);
+    while (header->magic != FPSIMD_MAGIC) {
+        header = reinterpret_cast<_aarch64_ctx*>(reinterpret_cast<char*>(header) + header->size);
+    }
+    return reinterpret_cast<fpsimd_context*>(header);
+}
+
+} // namespace
+
+void* ARM_NCE::RestoreGuestContext(void* raw_context) {
+    // Retrieve the host context.
+    auto& host_ctx = static_cast<ucontext_t*>(raw_context)->uc_mcontext;
+
+    // Thread-local parameters will be located in x9.
+    auto* tpidr = reinterpret_cast<NativeExecutionParameters*>(host_ctx.regs[9]);
+    auto* guest_ctx = static_cast<GuestContext*>(tpidr->native_context);
+
+    // Retrieve the host floating point state.
+    auto* fpctx = GetFloatingPointState(host_ctx);
+
+    // Save host callee-saved registers.
+    std::memcpy(guest_ctx->host_ctx.host_saved_vregs.data(), &fpctx->vregs[8],
+                sizeof(guest_ctx->host_ctx.host_saved_vregs));
+    std::memcpy(guest_ctx->host_ctx.host_saved_regs.data(), &host_ctx.regs[19],
+                sizeof(guest_ctx->host_ctx.host_saved_regs));
+
+    // Save stack pointer.
+    guest_ctx->host_ctx.host_sp = host_ctx.sp;
+
+    // Restore all guest state except tpidr_el0.
+    host_ctx.sp = guest_ctx->sp;
+    host_ctx.pc = guest_ctx->pc;
+    host_ctx.pstate = guest_ctx->pstate;
+    fpctx->fpcr = guest_ctx->fpcr;
+    fpctx->fpsr = guest_ctx->fpsr;
+    std::memcpy(host_ctx.regs, guest_ctx->cpu_registers.data(), sizeof(host_ctx.regs));
+    std::memcpy(fpctx->vregs, guest_ctx->vector_registers.data(), sizeof(fpctx->vregs));
+
+    // Return the new thread-local storage pointer.
+    return tpidr;
+}
+
+void ARM_NCE::SaveGuestContext(GuestContext* guest_ctx, void* raw_context) {
+    // Retrieve the host context.
+    auto& host_ctx = static_cast<ucontext_t*>(raw_context)->uc_mcontext;
+
+    // Retrieve the host floating point state.
+    auto* fpctx = GetFloatingPointState(host_ctx);
+
+    // Save all guest registers except tpidr_el0.
+    std::memcpy(guest_ctx->cpu_registers.data(), host_ctx.regs, sizeof(host_ctx.regs));
+    std::memcpy(guest_ctx->vector_registers.data(), fpctx->vregs, sizeof(fpctx->vregs));
+    guest_ctx->fpsr = fpctx->fpsr;
+    guest_ctx->fpcr = fpctx->fpcr;
+    guest_ctx->pstate = static_cast<u32>(host_ctx.pstate);
+    guest_ctx->pc = host_ctx.pc;
+    guest_ctx->sp = host_ctx.sp;
+
+    // Restore stack pointer.
+    host_ctx.sp = guest_ctx->host_ctx.host_sp;
+
+    // Restore host callee-saved registers.
+    std::memcpy(&host_ctx.regs[19], guest_ctx->host_ctx.host_saved_regs.data(),
+                sizeof(guest_ctx->host_ctx.host_saved_regs));
+    std::memcpy(&fpctx->vregs[8], guest_ctx->host_ctx.host_saved_vregs.data(),
+                sizeof(guest_ctx->host_ctx.host_saved_vregs));
+
+    // Return from the call on exit by setting pc to x30.
+    host_ctx.pc = guest_ctx->host_ctx.host_saved_regs[11];
+
+    // Clear esr_el1 and return it.
+    host_ctx.regs[0] = guest_ctx->esr_el1.exchange(0);
+}
+
+bool ARM_NCE::HandleGuestFault(GuestContext* guest_ctx, void* raw_info, void* raw_context) {
+    auto& host_ctx = static_cast<ucontext_t*>(raw_context)->uc_mcontext;
+    auto* info = static_cast<siginfo_t*>(raw_info);
+
+    // Try to handle an invalid access.
+    // TODO: handle accesses which split a page?
+    const Common::ProcessAddress addr =
+        (reinterpret_cast<u64>(info->si_addr) & ~Memory::YUZU_PAGEMASK);
+    if (guest_ctx->system->ApplicationMemory().InvalidateNCE(addr, Memory::YUZU_PAGESIZE)) {
+        // We handled the access successfully and are returning to guest code.
+        return true;
+    }
+
+    // We can't handle the access, so trigger an exception.
+    const bool is_prefetch_abort = host_ctx.pc == reinterpret_cast<u64>(info->si_addr);
+    guest_ctx->esr_el1.fetch_or(
+        static_cast<u64>(is_prefetch_abort ? HaltReason::PrefetchAbort : HaltReason::DataAbort));
+
+    // Forcibly mark the context as locked. We are still running.
+    // We may race with SignalInterrupt here:
+    // - If we lose the race, then SignalInterrupt will send us a signal we are masking,
+    //   and it will do nothing when it is unmasked, as we have already left guest code.
+    // - If we win the race, then SignalInterrupt will wait for us to unlock first.
+    auto& thread_params = guest_ctx->parent->running_thread->GetNativeExecutionParameters();
+    thread_params.lock.store(SpinLockLocked);
+
+    // Return to host.
+    SaveGuestContext(guest_ctx, raw_context);
+    return false;
+}
+
+void ARM_NCE::HandleHostFault(int sig, void* raw_info, void* raw_context) {
+    return g_orig_action.sa_sigaction(sig, static_cast<siginfo_t*>(raw_info), raw_context);
+}
+
+HaltReason ARM_NCE::RunJit() {
+    // Get the thread parameters.
+    // TODO: pass the current thread down from ::Run
+    auto* thread = Kernel::GetCurrentThreadPointer(system.Kernel());
+    auto* thread_params = &thread->GetNativeExecutionParameters();
+
+    {
+        // Lock our core context.
+        std::scoped_lock lk{lock};
+
+        // We should not be running.
+        ASSERT(running_thread == nullptr);
+
+        // Check if we need to run. If we have already been halted, we are done.
+        u64 halt = guest_ctx.esr_el1.exchange(0);
+        if (halt != 0) {
+            return static_cast<HaltReason>(halt);
+        }
+
+        // Mark that we are running.
+        running_thread = thread;
+
+        // Acquire the lock on the thread parameters.
+        // This allows us to force synchronization with SignalInterrupt.
+        LockThreadParameters(thread_params);
+    }
+
+    // Assign current members.
+    guest_ctx.parent = this;
+    thread_params->native_context = &guest_ctx;
+    thread_params->tpidr_el0 = guest_ctx.tpidr_el0;
+    thread_params->tpidrro_el0 = guest_ctx.tpidrro_el0;
+    thread_params->is_running = true;
+
+    HaltReason halt{};
+
+    // TODO: finding and creating the post handler needs to be locked
+    // to deal with dynamic loading of NROs.
+    const auto& post_handlers = system.ApplicationProcess()->GetPostHandlers();
+    if (auto it = post_handlers.find(guest_ctx.pc); it != post_handlers.end()) {
+        halt = ReturnToRunCodeByTrampoline(thread_params, &guest_ctx, it->second);
+    } else {
+        halt = ReturnToRunCodeByExceptionLevelChange(thread_id, thread_params);
+    }
+
+    // Unload members.
+    // The thread does not change, so we can persist the old reference.
+    guest_ctx.tpidr_el0 = thread_params->tpidr_el0;
+    thread_params->native_context = nullptr;
+    thread_params->is_running = false;
+
+    // Unlock the thread parameters.
+    UnlockThreadParameters(thread_params);
+
+    {
+        // Lock the core context.
+        std::scoped_lock lk{lock};
+
+        // On exit, we no longer have an active thread.
+        running_thread = nullptr;
+    }
+
+    // Return the halt reason.
+    return halt;
+}
+
+HaltReason ARM_NCE::StepJit() {
+    return HaltReason::StepThread;
+}
+
+u32 ARM_NCE::GetSvcNumber() const {
+    return guest_ctx.svc_swi;
+}
+
+ARM_NCE::ARM_NCE(System& system_, bool uses_wall_clock_, std::size_t core_index_)
+    : ARM_Interface{system_, uses_wall_clock_}, core_index{core_index_} {
+    guest_ctx.system = &system_;
+}
+
+ARM_NCE::~ARM_NCE() = default;
+
+void ARM_NCE::Initialize() {
+    thread_id = gettid();
+
+    // Setup our signals
+    static std::once_flag flag;
+    std::call_once(flag, [] {
+        using HandlerType = decltype(sigaction::sa_sigaction);
+
+        sigset_t signal_mask;
+        sigemptyset(&signal_mask);
+        sigaddset(&signal_mask, ReturnToRunCodeByExceptionLevelChangeSignal);
+        sigaddset(&signal_mask, BreakFromRunCodeSignal);
+        sigaddset(&signal_mask, GuestFaultSignal);
+
+        struct sigaction return_to_run_code_action {};
+        return_to_run_code_action.sa_flags = SA_SIGINFO | SA_ONSTACK;
+        return_to_run_code_action.sa_sigaction = reinterpret_cast<HandlerType>(
+            &ARM_NCE::ReturnToRunCodeByExceptionLevelChangeSignalHandler);
+        return_to_run_code_action.sa_mask = signal_mask;
+        Common::SigAction(ReturnToRunCodeByExceptionLevelChangeSignal, &return_to_run_code_action,
+                          nullptr);
+
+        struct sigaction break_from_run_code_action {};
+        break_from_run_code_action.sa_flags = SA_SIGINFO | SA_ONSTACK;
+        break_from_run_code_action.sa_sigaction =
+            reinterpret_cast<HandlerType>(&ARM_NCE::BreakFromRunCodeSignalHandler);
+        break_from_run_code_action.sa_mask = signal_mask;
+        Common::SigAction(BreakFromRunCodeSignal, &break_from_run_code_action, nullptr);
+
+        struct sigaction fault_action {};
+        fault_action.sa_flags = SA_SIGINFO | SA_ONSTACK | SA_RESTART;
+        fault_action.sa_sigaction =
+            reinterpret_cast<HandlerType>(&ARM_NCE::GuestFaultSignalHandler);
+        fault_action.sa_mask = signal_mask;
+        Common::SigAction(GuestFaultSignal, &fault_action, &g_orig_action);
+
+        // Simplify call for g_orig_action.
+        // These fields occupy the same space in memory, so this should be a no-op in practice.
+        if (!(g_orig_action.sa_flags & SA_SIGINFO)) {
+            g_orig_action.sa_sigaction =
+                reinterpret_cast<decltype(g_orig_action.sa_sigaction)>(g_orig_action.sa_handler);
+        }
+    });
+}
+
+void ARM_NCE::SetPC(u64 pc) {
+    guest_ctx.pc = pc;
+}
+
+u64 ARM_NCE::GetPC() const {
+    return guest_ctx.pc;
+}
+
+u64 ARM_NCE::GetSP() const {
+    return guest_ctx.sp;
+}
+
+u64 ARM_NCE::GetReg(int index) const {
+    return guest_ctx.cpu_registers[index];
+}
+
+void ARM_NCE::SetReg(int index, u64 value) {
+    guest_ctx.cpu_registers[index] = value;
+}
+
+u128 ARM_NCE::GetVectorReg(int index) const {
+    return guest_ctx.vector_registers[index];
+}
+
+void ARM_NCE::SetVectorReg(int index, u128 value) {
+    guest_ctx.vector_registers[index] = value;
+}
+
+u32 ARM_NCE::GetPSTATE() const {
+    return guest_ctx.pstate;
+}
+
+void ARM_NCE::SetPSTATE(u32 pstate) {
+    guest_ctx.pstate = pstate;
+}
+
+u64 ARM_NCE::GetTlsAddress() const {
+    return guest_ctx.tpidrro_el0;
+}
+
+void ARM_NCE::SetTlsAddress(u64 address) {
+    guest_ctx.tpidrro_el0 = address;
+}
+
+u64 ARM_NCE::GetTPIDR_EL0() const {
+    return guest_ctx.tpidr_el0;
+}
+
+void ARM_NCE::SetTPIDR_EL0(u64 value) {
+    guest_ctx.tpidr_el0 = value;
+}
+
+void ARM_NCE::SaveContext(ThreadContext64& ctx) const {
+    ctx.cpu_registers = guest_ctx.cpu_registers;
+    ctx.sp = guest_ctx.sp;
+    ctx.pc = guest_ctx.pc;
+    ctx.pstate = guest_ctx.pstate;
+    ctx.vector_registers = guest_ctx.vector_registers;
+    ctx.fpcr = guest_ctx.fpcr;
+    ctx.fpsr = guest_ctx.fpsr;
+    ctx.tpidr = guest_ctx.tpidr_el0;
+}
+
+void ARM_NCE::LoadContext(const ThreadContext64& ctx) {
+    guest_ctx.cpu_registers = ctx.cpu_registers;
+    guest_ctx.sp = ctx.sp;
+    guest_ctx.pc = ctx.pc;
+    guest_ctx.pstate = ctx.pstate;
+    guest_ctx.vector_registers = ctx.vector_registers;
+    guest_ctx.fpcr = ctx.fpcr;
+    guest_ctx.fpsr = ctx.fpsr;
+    guest_ctx.tpidr_el0 = ctx.tpidr;
+}
+
+void ARM_NCE::SignalInterrupt() {
+    // Lock core context.
+    std::scoped_lock lk{lock};
+
+    // Add break loop condition.
+    guest_ctx.esr_el1.fetch_or(static_cast<u64>(HaltReason::BreakLoop));
+
+    // If there is no thread running, we are done.
+    if (running_thread == nullptr) {
+        return;
+    }
+
+    // Lock the thread context.
+    auto* params = &running_thread->GetNativeExecutionParameters();
+    LockThreadParameters(params);
+
+    if (params->is_running) {
+        // We should signal to the running thread.
+        // The running thread will unlock the thread context.
+        syscall(SYS_tkill, thread_id, BreakFromRunCodeSignal);
+    } else {
+        // If the thread is no longer running, we have nothing to do.
+        UnlockThreadParameters(params);
+    }
+}
+
+void ARM_NCE::ClearInterrupt() {
+    guest_ctx.esr_el1 = {};
+}
+
+void ARM_NCE::ClearInstructionCache() {
+    // TODO: This is not possible to implement correctly on Linux because
+    // we do not have any access to ic iallu.
+
+    // Require accesses to complete.
+    std::atomic_thread_fence(std::memory_order_seq_cst);
+}
+
+void ARM_NCE::InvalidateCacheRange(u64 addr, std::size_t size) {
+    this->ClearInstructionCache();
+}
+
+void ARM_NCE::ClearExclusiveState() {
+    // No-op.
+}
+
+void ARM_NCE::PageTableChanged(Common::PageTable& page_table,
+                               std::size_t new_address_space_size_in_bits) {
+    // No-op. Page table is never used.
+}
+
+} // namespace Core

src/core/arm/nce/arm_nce.h

@@ -0,0 +1,108 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <atomic>
+#include <memory>
+#include <span>
+#include <unordered_map>
+#include <vector>
+
+#include "core/arm/arm_interface.h"
+#include "core/arm/nce/guest_context.h"
+
+namespace Core::Memory {
+class Memory;
+}
+
+namespace Core {
+
+class System;
+
+class ARM_NCE final : public ARM_Interface {
+public:
+    ARM_NCE(System& system_, bool uses_wall_clock_, std::size_t core_index_);
+
+    ~ARM_NCE() override;
+
+    void Initialize() override;
+    void SetPC(u64 pc) override;
+    u64 GetPC() const override;
+    u64 GetSP() const override;
+    u64 GetReg(int index) const override;
+    void SetReg(int index, u64 value) override;
+    u128 GetVectorReg(int index) const override;
+    void SetVectorReg(int index, u128 value) override;
+
+    u32 GetPSTATE() const override;
+    void SetPSTATE(u32 pstate) override;
+    u64 GetTlsAddress() const override;
+    void SetTlsAddress(u64 address) override;
+    void SetTPIDR_EL0(u64 value) override;
+    u64 GetTPIDR_EL0() const override;
+
+    Architecture GetArchitecture() const override {
+        return Architecture::Aarch64;
+    }
+
+    void SaveContext(ThreadContext32& ctx) const override {}
+    void SaveContext(ThreadContext64& ctx) const override;
+    void LoadContext(const ThreadContext32& ctx) override {}
+    void LoadContext(const ThreadContext64& ctx) override;
+
+    void SignalInterrupt() override;
+    void ClearInterrupt() override;
+    void ClearExclusiveState() override;
+    void ClearInstructionCache() override;
+    void InvalidateCacheRange(u64 addr, std::size_t size) override;
+    void PageTableChanged(Common::PageTable& new_page_table,
+                          std::size_t new_address_space_size_in_bits) override;
+
+protected:
+    HaltReason RunJit() override;
+    HaltReason StepJit() override;
+
+    u32 GetSvcNumber() const override;
+
+    const Kernel::DebugWatchpoint* HaltedWatchpoint() const override {
+        return nullptr;
+    }
+
+    void RewindBreakpointInstruction() override {}
+
+private:
+    // Assembly definitions.
+    static HaltReason ReturnToRunCodeByTrampoline(void* tpidr, GuestContext* ctx,
+                                                  u64 trampoline_addr);
+    static HaltReason ReturnToRunCodeByExceptionLevelChange(int tid, void* tpidr);
+
+    static void ReturnToRunCodeByExceptionLevelChangeSignalHandler(int sig, void* info,
+                                                                   void* raw_context);
+    static void BreakFromRunCodeSignalHandler(int sig, void* info, void* raw_context);
+    static void GuestFaultSignalHandler(int sig, void* info, void* raw_context);
+
+    static void LockThreadParameters(void* tpidr);
+    static void UnlockThreadParameters(void* tpidr);
+
+private:
+    // C++ implementation functions for assembly definitions.
+    static void* RestoreGuestContext(void* raw_context);
+    static void SaveGuestContext(GuestContext* ctx, void* raw_context);
+    static bool HandleGuestFault(GuestContext* ctx, void* info, void* raw_context);
+    static void HandleHostFault(int sig, void* info, void* raw_context);
+
+public:
+    // Members set on initialization.
+    std::size_t core_index{};
+    pid_t thread_id{-1};
+
+    // Core context.
+    GuestContext guest_ctx;
+
+    // Thread and invalidation info.
+    std::mutex lock;
+    Kernel::KThread* running_thread{};
+};
+
+} // namespace Core

src/core/arm/nce/arm_nce.s

@@ -0,0 +1,222 @@
+/* SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "core/arm/nce/arm_nce_asm_definitions.h"
+
+#define LOAD_IMMEDIATE_32(reg, val)                     \
+    mov     reg, #(((val) >> 0x00) & 0xFFFF);           \
+    movk    reg, #(((val) >> 0x10) & 0xFFFF), lsl #16
+
+
+/* static HaltReason Core::ARM_NCE::ReturnToRunCodeByTrampoline(void* tpidr, Core::GuestContext* ctx, u64 trampoline_addr) */
+.section    .text._ZN4Core7ARM_NCE27ReturnToRunCodeByTrampolineEPvPNS_12GuestContextEm, "ax", %progbits
+.global     _ZN4Core7ARM_NCE27ReturnToRunCodeByTrampolineEPvPNS_12GuestContextEm
+.type       _ZN4Core7ARM_NCE27ReturnToRunCodeByTrampolineEPvPNS_12GuestContextEm, %function
+_ZN4Core7ARM_NCE27ReturnToRunCodeByTrampolineEPvPNS_12GuestContextEm:
+    /* Back up host sp to x3. */
+    /* Back up host tpidr_el0 to x4. */
+    mov     x3, sp
+    mrs     x4, tpidr_el0
+
+    /* Load guest sp. x5 is used as a scratch register. */
+    ldr     x5, [x1, #(GuestContextSp)]
+    mov     sp, x5
+
+    /* Offset GuestContext pointer to the host member. */
+    add     x5, x1, #(GuestContextHostContext)
+
+    /* Save original host sp and tpidr_el0 (x3, x4) to host context. */
+    stp     x3, x4, [x5, #(HostContextSpTpidrEl0)]
+
+    /* Save all callee-saved host GPRs. */
+    stp     x19, x20, [x5, #(HostContextRegs+0x0)]
+    stp     x21, x22, [x5, #(HostContextRegs+0x10)]
+    stp     x23, x24, [x5, #(HostContextRegs+0x20)]
+    stp     x25, x26, [x5, #(HostContextRegs+0x30)]
+    stp     x27, x28, [x5, #(HostContextRegs+0x40)]
+    stp     x29, x30, [x5, #(HostContextRegs+0x50)]
+
+    /* Save all callee-saved host FPRs. */
+    stp     q8, q9,   [x5, #(HostContextVregs+0x0)]
+    stp     q10, q11, [x5, #(HostContextVregs+0x20)]
+    stp     q12, q13, [x5, #(HostContextVregs+0x40)]
+    stp     q14, q15, [x5, #(HostContextVregs+0x60)]
+
+    /* Load guest tpidr_el0 from argument. */
+    msr     tpidr_el0, x0
+
+    /* Tail call the trampoline to restore guest state. */
+    br      x2
+
+
+/* static HaltReason Core::ARM_NCE::ReturnToRunCodeByExceptionLevelChange(int tid, void* tpidr) */
+.section    .text._ZN4Core7ARM_NCE37ReturnToRunCodeByExceptionLevelChangeEiPv, "ax", %progbits
+.global     _ZN4Core7ARM_NCE37ReturnToRunCodeByExceptionLevelChangeEiPv
+.type       _ZN4Core7ARM_NCE37ReturnToRunCodeByExceptionLevelChangeEiPv, %function
+_ZN4Core7ARM_NCE37ReturnToRunCodeByExceptionLevelChangeEiPv:
+    /* This jumps to the signal handler, which will restore the entire context. */
+    /* On entry, x0 = thread id, which is already in the right place. */
+
+    /* Move tpidr to x9 so it is not trampled. */
+    mov     x9, x1
+
+    /* Set up arguments. */
+    mov     x8, #(__NR_tkill)
+    mov     x1, #(ReturnToRunCodeByExceptionLevelChangeSignal)
+
+    /* Tail call the signal handler. */
+    svc     #0
+
+    /* Block execution from flowing here. */
+    brk     #1000
+
+
+/* static void Core::ARM_NCE::ReturnToRunCodeByExceptionLevelChangeSignalHandler(int sig, void* info, void* raw_context) */
+.section    .text._ZN4Core7ARM_NCE50ReturnToRunCodeByExceptionLevelChangeSignalHandlerEiPvS1_, "ax", %progbits
+.global     _ZN4Core7ARM_NCE50ReturnToRunCodeByExceptionLevelChangeSignalHandlerEiPvS1_
+.type       _ZN4Core7ARM_NCE50ReturnToRunCodeByExceptionLevelChangeSignalHandlerEiPvS1_, %function
+_ZN4Core7ARM_NCE50ReturnToRunCodeByExceptionLevelChangeSignalHandlerEiPvS1_:
+    stp     x29, x30, [sp, #-0x10]!
+    mov     x29, sp
+
+    /* Call the context restorer with the raw context. */
+    mov     x0, x2
+    bl      _ZN4Core7ARM_NCE19RestoreGuestContextEPv
+
+    /* Save the old value of tpidr_el0. */
+    mrs     x8, tpidr_el0
+    ldr     x9, [x0, #(TpidrEl0NativeContext)]
+    str     x8, [x9, #(GuestContextHostContext + HostContextTpidrEl0)]
+
+    /* Set our new tpidr_el0. */
+    msr     tpidr_el0, x0
+
+    /* Unlock the context. */
+    bl      _ZN4Core7ARM_NCE22UnlockThreadParametersEPv
+
+    /* Returning from here will enter the guest. */
+    ldp     x29, x30, [sp], #0x10
+    ret
+
+
+/* static void Core::ARM_NCE::BreakFromRunCodeSignalHandler(int sig, void* info, void* raw_context) */
+.section    .text._ZN4Core7ARM_NCE29BreakFromRunCodeSignalHandlerEiPvS1_, "ax", %progbits
+.global     _ZN4Core7ARM_NCE29BreakFromRunCodeSignalHandlerEiPvS1_
+.type       _ZN4Core7ARM_NCE29BreakFromRunCodeSignalHandlerEiPvS1_, %function
+_ZN4Core7ARM_NCE29BreakFromRunCodeSignalHandlerEiPvS1_:
+    /* Check to see if we have the correct TLS magic. */
+    mrs     x8, tpidr_el0
+    ldr     w9, [x8, #(TpidrEl0TlsMagic)]
+
+    LOAD_IMMEDIATE_32(w10, TlsMagic)
+
+    cmp     w9, w10
+    b.ne    1f
+
+    /* Correct TLS magic, so this is a guest interrupt. */
+    /* Restore host tpidr_el0. */
+    ldr     x0, [x8, #(TpidrEl0NativeContext)]
+    ldr     x3, [x0, #(GuestContextHostContext + HostContextTpidrEl0)]
+    msr     tpidr_el0, x3
+
+    /* Tail call the restorer. */
+    mov     x1, x2
+    b       _ZN4Core7ARM_NCE16SaveGuestContextEPNS_12GuestContextEPv
+
+    /* Returning from here will enter host code. */
+
+1:
+    /* Incorrect TLS magic, so this is a spurious signal. */
+    ret
+
+
+/* static void Core::ARM_NCE::GuestFaultSignalHandler(int sig, void* info, void* raw_context) */
+.section    .text._ZN4Core7ARM_NCE23GuestFaultSignalHandlerEiPvS1_, "ax", %progbits
+.global     _ZN4Core7ARM_NCE23GuestFaultSignalHandlerEiPvS1_
+.type       _ZN4Core7ARM_NCE23GuestFaultSignalHandlerEiPvS1_, %function
+_ZN4Core7ARM_NCE23GuestFaultSignalHandlerEiPvS1_:
+    /* Check to see if we have the correct TLS magic. */
+    mrs     x8, tpidr_el0
+    ldr     w9, [x8, #(TpidrEl0TlsMagic)]
+
+    LOAD_IMMEDIATE_32(w10, TlsMagic)
+
+    cmp     w9, w10
+    b.eq    1f
+
+    /* Incorrect TLS magic, so this is a host fault. */
+    /* Tail call the handler. */
+    b       _ZN4Core7ARM_NCE15HandleHostFaultEiPvS1_
+
+1:
+    /* Correct TLS magic, so this is a guest fault. */
+    stp     x29, x30, [sp, #-0x20]!
+    str     x19, [sp, #0x10]
+    mov     x29, sp
+
+    /* Save the old tpidr_el0. */
+    mov     x19, x8
+
+    /* Restore host tpidr_el0. */
+    ldr     x0, [x8, #(TpidrEl0NativeContext)]
+    ldr     x3, [x0, #(GuestContextHostContext + HostContextTpidrEl0)]
+    msr     tpidr_el0, x3
+
+    /* Call the handler. */
+    bl       _ZN4Core7ARM_NCE16HandleGuestFaultEPNS_12GuestContextEPvS3_
+
+    /* If the handler returned false, we want to preserve the host tpidr_el0. */
+    cbz     x0, 2f
+
+    /* Otherwise, restore guest tpidr_el0. */
+    msr     tpidr_el0, x19
+
+2:
+    ldr     x19, [sp, #0x10]
+    ldp     x29, x30, [sp], #0x20
+    ret
+
+
+/* static void Core::ARM_NCE::LockThreadParameters(void* tpidr) */
+.section    .text._ZN4Core7ARM_NCE20LockThreadParametersEPv, "ax", %progbits
+.global     _ZN4Core7ARM_NCE20LockThreadParametersEPv
+.type       _ZN4Core7ARM_NCE20LockThreadParametersEPv, %function
+_ZN4Core7ARM_NCE20LockThreadParametersEPv:
+    /* Offset to lock member. */
+    add     x0, x0, #(TpidrEl0Lock)
+
+1:
+    /* Clear the monitor. */
+    clrex
+
+2:
+    /* Load-linked with acquire ordering. */
+    ldaxr   w1, [x0]
+
+    /* If the value was SpinLockLocked, clear monitor and retry. */
+    cbz     w1, 1b
+
+    /* Store-conditional SpinLockLocked with relaxed ordering. */
+    stxr    w1, wzr, [x0]
+
+    /* If we failed to store, retry. */
+    cbnz    w1, 2b
+
+    ret
+
+
+/* static void Core::ARM_NCE::UnlockThreadParameters(void* tpidr) */
+.section    .text._ZN4Core7ARM_NCE22UnlockThreadParametersEPv, "ax", %progbits
+.global     _ZN4Core7ARM_NCE22UnlockThreadParametersEPv
+.type       _ZN4Core7ARM_NCE22UnlockThreadParametersEPv, %function
+_ZN4Core7ARM_NCE22UnlockThreadParametersEPv:
+    /* Offset to lock member. */
+    add     x0, x0, #(TpidrEl0Lock)
+
+    /* Load SpinLockUnlocked. */
+    mov     w1, #(SpinLockUnlocked)
+
+    /* Store value with release ordering. */
+    stlr    w1, [x0]
+
+    ret

src/core/arm/nce/arm_nce_asm_definitions.h

@@ -0,0 +1,29 @@
+/* SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#pragma once
+
+#define __ASSEMBLY__
+
+#include <asm-generic/signal.h>
+#include <asm-generic/unistd.h>
+
+#define ReturnToRunCodeByExceptionLevelChangeSignal SIGUSR2
+#define BreakFromRunCodeSignal SIGURG
+#define GuestFaultSignal SIGSEGV
+
+#define GuestContextSp 0xF8
+#define GuestContextHostContext 0x320
+
+#define HostContextSpTpidrEl0 0xE0
+#define HostContextTpidrEl0 0xE8
+#define HostContextRegs 0x0
+#define HostContextVregs 0x60
+
+#define TpidrEl0NativeContext 0x10
+#define TpidrEl0Lock 0x18
+#define TpidrEl0TlsMagic 0x20
+#define TlsMagic 0x555a5559
+
+#define SpinLockLocked 0
+#define SpinLockUnlocked 1

src/core/arm/nce/guest_context.h

@@ -0,0 +1,50 @@
+// 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"
+#include "core/arm/arm_interface.h"
+#include "core/arm/nce/arm_nce_asm_definitions.h"
+
+namespace Core {
+
+class ARM_NCE;
+class System;
+
+struct HostContext {
+    alignas(16) std::array<u64, 12> host_saved_regs{};
+    alignas(16) std::array<u128, 8> host_saved_vregs{};
+    u64 host_sp{};
+    void* host_tpidr_el0{};
+};
+
+struct GuestContext {
+    std::array<u64, 31> cpu_registers{};
+    u64 sp{};
+    u64 pc{};
+    u32 fpcr{};
+    u32 fpsr{};
+    std::array<u128, 32> vector_registers{};
+    u32 pstate{};
+    alignas(16) HostContext host_ctx{};
+    u64 tpidrro_el0{};
+    u64 tpidr_el0{};
+    std::atomic<u64> esr_el1{};
+    u32 nzcv{};
+    u32 svc_swi{};
+    System* system{};
+    ARM_NCE* parent{};
+};
+
+// Verify assembly offsets.
+static_assert(offsetof(GuestContext, sp) == GuestContextSp);
+static_assert(offsetof(GuestContext, host_ctx) == GuestContextHostContext);
+static_assert(offsetof(HostContext, host_sp) == HostContextSpTpidrEl0);
+static_assert(offsetof(HostContext, host_tpidr_el0) - 8 == HostContextSpTpidrEl0);
+static_assert(offsetof(HostContext, host_tpidr_el0) == HostContextTpidrEl0);
+static_assert(offsetof(HostContext, host_saved_regs) == HostContextRegs);
+static_assert(offsetof(HostContext, host_saved_vregs) == HostContextVregs);
+
+} // namespace Core

src/core/arm/nce/instructions.h

@@ -0,0 +1,147 @@
+// SPDX-FileCopyrightText: Copyright © 2020 Skyline Team and Contributors
+// SPDX-License-Identifier: MPL-2.0
+
+#include "common/bit_field.h"
+#include "common/common_types.h"
+
+namespace Core::NCE {
+
+enum SystemRegister : u32 {
+    TpidrEl0 = 0x5E82,
+    TpidrroEl0 = 0x5E83,
+    CntfrqEl0 = 0x5F00,
+    CntpctEl0 = 0x5F01,
+};
+
+// https://developer.arm.com/documentation/ddi0596/2021-12/Base-Instructions/SVC--Supervisor-Call-
+union SVC {
+    constexpr explicit SVC(u32 raw_) : raw{raw_} {}
+
+    constexpr bool Verify() {
+        return (this->GetSig0() == 0x1 && this->GetSig1() == 0x6A0);
+    }
+
+    constexpr u32 GetSig0() {
+        return decltype(sig0)::ExtractValue(raw);
+    }
+
+    constexpr u32 GetValue() {
+        return decltype(value)::ExtractValue(raw);
+    }
+
+    constexpr u32 GetSig1() {
+        return decltype(sig1)::ExtractValue(raw);
+    }
+
+    u32 raw;
+
+private:
+    BitField<0, 5, u32> sig0;   // 0x1
+    BitField<5, 16, u32> value; // 16-bit immediate
+    BitField<21, 11, u32> sig1; // 0x6A0
+};
+static_assert(sizeof(SVC) == sizeof(u32));
+static_assert(SVC(0xD40000C1).Verify());
+static_assert(SVC(0xD40000C1).GetValue() == 0x6);
+
+// https://developer.arm.com/documentation/ddi0596/2021-12/Base-Instructions/MRS--Move-System-Register-
+union MRS {
+    constexpr explicit MRS(u32 raw_) : raw{raw_} {}
+
+    constexpr bool Verify() {
+        return (this->GetSig() == 0xD53);
+    }
+
+    constexpr u32 GetRt() {
+        return decltype(rt)::ExtractValue(raw);
+    }
+
+    constexpr u32 GetSystemReg() {
+        return decltype(system_reg)::ExtractValue(raw);
+    }
+
+    constexpr u32 GetSig() {
+        return decltype(sig)::ExtractValue(raw);
+    }
+
+    u32 raw;
+
+private:
+    BitField<0, 5, u32> rt;          // destination register
+    BitField<5, 15, u32> system_reg; // source system register
+    BitField<20, 12, u32> sig;       // 0xD53
+};
+static_assert(sizeof(MRS) == sizeof(u32));
+static_assert(MRS(0xD53BE020).Verify());
+static_assert(MRS(0xD53BE020).GetSystemReg() == CntpctEl0);
+static_assert(MRS(0xD53BE020).GetRt() == 0x0);
+
+// https://developer.arm.com/documentation/ddi0596/2021-12/Base-Instructions/MSR--register---Move-general-purpose-register-to-System-Register-
+union MSR {
+    constexpr explicit MSR(u32 raw_) : raw{raw_} {}
+
+    constexpr bool Verify() {
+        return this->GetSig() == 0xD51;
+    }
+
+    constexpr u32 GetRt() {
+        return decltype(rt)::ExtractValue(raw);
+    }
+
+    constexpr u32 GetSystemReg() {
+        return decltype(system_reg)::ExtractValue(raw);
+    }
+
+    constexpr u32 GetSig() {
+        return decltype(sig)::ExtractValue(raw);
+    }
+
+    u32 raw;
+
+private:
+    BitField<0, 5, u32> rt;          // source register
+    BitField<5, 15, u32> system_reg; // destination system register
+    BitField<20, 12, u32> sig;       // 0xD51
+};
+static_assert(sizeof(MSR) == sizeof(u32));
+static_assert(MSR(0xD51BD040).Verify());
+static_assert(MSR(0xD51BD040).GetSystemReg() == TpidrEl0);
+static_assert(MSR(0xD51BD040).GetRt() == 0x0);
+
+// https://developer.arm.com/documentation/ddi0596/2021-12/Base-Instructions/LDXR--Load-Exclusive-Register-
+// https://developer.arm.com/documentation/ddi0596/2021-12/Base-Instructions/LDXP--Load-Exclusive-Pair-of-Registers-
+// https://developer.arm.com/documentation/ddi0596/2021-12/Base-Instructions/STXR--Store-Exclusive-Register-
+// https://developer.arm.com/documentation/ddi0596/2021-12/Base-Instructions/STXP--Store-Exclusive-Pair-of-registers-
+union Exclusive {
+    constexpr explicit Exclusive(u32 raw_) : raw{raw_} {}
+
+    constexpr bool Verify() {
+        return this->GetSig() == 0x10;
+    }
+
+    constexpr u32 GetSig() {
+        return decltype(sig)::ExtractValue(raw);
+    }
+
+    constexpr u32 AsOrdered() {
+        return raw | decltype(o0)::FormatValue(1);
+    }
+
+    u32 raw;
+
+private:
+    BitField<0, 5, u32> rt;    // memory operand
+    BitField<5, 5, u32> rn;    // register operand 1
+    BitField<10, 5, u32> rt2;  // register operand 2
+    BitField<15, 1, u32> o0;   // ordered
+    BitField<16, 5, u32> rs;   // status register
+    BitField<21, 2, u32> l;    // operation type
+    BitField<23, 7, u32> sig;  // 0x10
+    BitField<30, 2, u32> size; // size
+};
+static_assert(Exclusive(0xC85FFC00).Verify());
+static_assert(Exclusive(0xC85FFC00).AsOrdered() == 0xC85FFC00);
+static_assert(Exclusive(0xC85F7C00).AsOrdered() == 0xC85FFC00);
+static_assert(Exclusive(0xC8200440).AsOrdered() == 0xC8208440);
+
+} // namespace Core::NCE

src/core/arm/nce/patch.cpp

@@ -0,0 +1,471 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/arm64/native_clock.h"
+#include "common/bit_cast.h"
+#include "common/literals.h"
+#include "core/arm/nce/arm_nce.h"
+#include "core/arm/nce/guest_context.h"
+#include "core/arm/nce/instructions.h"
+#include "core/arm/nce/patch.h"
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/kernel/svc.h"
+
+namespace Core::NCE {
+
+using namespace Common::Literals;
+using namespace oaknut::util;
+
+using NativeExecutionParameters = Kernel::KThread::NativeExecutionParameters;
+
+constexpr size_t MaxRelativeBranch = 128_MiB;
+
+Patcher::Patcher() : c(m_patch_instructions) {}
+
+Patcher::~Patcher() = default;
+
+void Patcher::PatchText(const Kernel::PhysicalMemory& program_image,
+                        const Kernel::CodeSet::Segment& code) {
+
+    // Write save context helper function.
+    c.l(m_save_context);
+    WriteSaveContext();
+
+    // Write load context helper function.
+    c.l(m_load_context);
+    WriteLoadContext();
+
+    // Retrieve text segment data.
+    const auto text = std::span{program_image}.subspan(code.offset, code.size);
+    const auto text_words =
+        std::span<const u32>{reinterpret_cast<const u32*>(text.data()), text.size() / sizeof(u32)};
+
+    // Loop through instructions, patching as needed.
+    for (u32 i = 0; i < static_cast<u32>(text_words.size()); i++) {
+        const u32 inst = text_words[i];
+
+        const auto AddRelocations = [&] {
+            const uintptr_t this_offset = i * sizeof(u32);
+            const uintptr_t next_offset = this_offset + sizeof(u32);
+
+            // Relocate from here to patch.
+            this->BranchToPatch(this_offset);
+
+            // Relocate from patch to next instruction.
+            return next_offset;
+        };
+
+        // SVC
+        if (auto svc = SVC{inst}; svc.Verify()) {
+            WriteSvcTrampoline(AddRelocations(), svc.GetValue());
+            continue;
+        }
+
+        // MRS Xn, TPIDR_EL0
+        // MRS Xn, TPIDRRO_EL0
+        if (auto mrs = MRS{inst};
+            mrs.Verify() && (mrs.GetSystemReg() == TpidrroEl0 || mrs.GetSystemReg() == TpidrEl0)) {
+            const auto src_reg = mrs.GetSystemReg() == TpidrroEl0 ? oaknut::SystemReg::TPIDRRO_EL0
+                                                                  : oaknut::SystemReg::TPIDR_EL0;
+            const auto dest_reg = oaknut::XReg{static_cast<int>(mrs.GetRt())};
+            WriteMrsHandler(AddRelocations(), dest_reg, src_reg);
+            continue;
+        }
+
+        // MRS Xn, CNTPCT_EL0
+        if (auto mrs = MRS{inst}; mrs.Verify() && mrs.GetSystemReg() == CntpctEl0) {
+            WriteCntpctHandler(AddRelocations(), oaknut::XReg{static_cast<int>(mrs.GetRt())});
+            continue;
+        }
+
+        // MRS Xn, CNTFRQ_EL0
+        if (auto mrs = MRS{inst}; mrs.Verify() && mrs.GetSystemReg() == CntfrqEl0) {
+            UNREACHABLE();
+        }
+
+        // MSR TPIDR_EL0, Xn
+        if (auto msr = MSR{inst}; msr.Verify() && msr.GetSystemReg() == TpidrEl0) {
+            WriteMsrHandler(AddRelocations(), oaknut::XReg{static_cast<int>(msr.GetRt())});
+            continue;
+        }
+    }
+
+    // Determine patching mode for the final relocation step
+    const size_t image_size = program_image.size();
+    this->mode = image_size > MaxRelativeBranch ? PatchMode::PreText : PatchMode::PostData;
+}
+
+void Patcher::RelocateAndCopy(Common::ProcessAddress load_base,
+                              const Kernel::CodeSet::Segment& code,
+                              Kernel::PhysicalMemory& program_image,
+                              EntryTrampolines* out_trampolines) {
+    const size_t patch_size = GetSectionSize();
+    const size_t image_size = program_image.size();
+
+    // Retrieve text segment data.
+    const auto text = std::span{program_image}.subspan(code.offset, code.size);
+    const auto text_words =
+        std::span<u32>{reinterpret_cast<u32*>(text.data()), text.size() / sizeof(u32)};
+
+    const auto ApplyBranchToPatchRelocation = [&](u32* target, const Relocation& rel) {
+        oaknut::CodeGenerator rc{target};
+        if (mode == PatchMode::PreText) {
+            rc.B(rel.patch_offset - patch_size - rel.module_offset);
+        } else {
+            rc.B(image_size - rel.module_offset + rel.patch_offset);
+        }
+    };
+
+    const auto ApplyBranchToModuleRelocation = [&](u32* target, const Relocation& rel) {
+        oaknut::CodeGenerator rc{target};
+        if (mode == PatchMode::PreText) {
+            rc.B(patch_size - rel.patch_offset + rel.module_offset);
+        } else {
+            rc.B(rel.module_offset - image_size - rel.patch_offset);
+        }
+    };
+
+    const auto RebasePatch = [&](ptrdiff_t patch_offset) {
+        if (mode == PatchMode::PreText) {
+            return GetInteger(load_base) + patch_offset;
+        } else {
+            return GetInteger(load_base) + image_size + patch_offset;
+        }
+    };
+
+    const auto RebasePc = [&](uintptr_t module_offset) {
+        if (mode == PatchMode::PreText) {
+            return GetInteger(load_base) + patch_size + module_offset;
+        } else {
+            return GetInteger(load_base) + module_offset;
+        }
+    };
+
+    // We are now ready to relocate!
+    for (const Relocation& rel : m_branch_to_patch_relocations) {
+        ApplyBranchToPatchRelocation(text_words.data() + rel.module_offset / sizeof(u32), rel);
+    }
+    for (const Relocation& rel : m_branch_to_module_relocations) {
+        ApplyBranchToModuleRelocation(m_patch_instructions.data() + rel.patch_offset / sizeof(u32),
+                                      rel);
+    }
+
+    // Rewrite PC constants and record post trampolines
+    for (const Relocation& rel : m_write_module_pc_relocations) {
+        oaknut::CodeGenerator rc{m_patch_instructions.data() + rel.patch_offset / sizeof(u32)};
+        rc.dx(RebasePc(rel.module_offset));
+    }
+    for (const Trampoline& rel : m_trampolines) {
+        out_trampolines->insert({RebasePc(rel.module_offset), RebasePatch(rel.patch_offset)});
+    }
+
+    // Cortex-A57 seems to treat all exclusives as ordered, but newer processors do not.
+    // Convert to ordered to preserve this assumption
+    for (u32 i = 0; i < static_cast<u32>(text_words.size()); i++) {
+        const u32 inst = text_words[i];
+        if (auto exclusive = Exclusive{inst}; exclusive.Verify()) {
+            text_words[i] = exclusive.AsOrdered();
+        }
+    }
+
+    // Copy to program image
+    if (this->mode == PatchMode::PreText) {
+        std::memcpy(program_image.data(), m_patch_instructions.data(),
+                    m_patch_instructions.size() * sizeof(u32));
+    } else {
+        program_image.resize(image_size + patch_size);
+        std::memcpy(program_image.data() + image_size, m_patch_instructions.data(),
+                    m_patch_instructions.size() * sizeof(u32));
+    }
+}
+
+size_t Patcher::GetSectionSize() const noexcept {
+    return Common::AlignUp(m_patch_instructions.size() * sizeof(u32), Core::Memory::YUZU_PAGESIZE);
+}
+
+void Patcher::WriteLoadContext() {
+    // This function was called, which modifies X30, so use that as a scratch register.
+    // SP contains the guest X30, so save our return X30 to SP + 8, since we have allocated 16 bytes
+    // of stack.
+    c.STR(X30, SP, 8);
+    c.MRS(X30, oaknut::SystemReg::TPIDR_EL0);
+    c.LDR(X30, X30, offsetof(NativeExecutionParameters, native_context));
+
+    // Load system registers.
+    c.LDR(W0, X30, offsetof(GuestContext, fpsr));
+    c.MSR(oaknut::SystemReg::FPSR, X0);
+    c.LDR(W0, X30, offsetof(GuestContext, fpcr));
+    c.MSR(oaknut::SystemReg::FPCR, X0);
+    c.LDR(W0, X30, offsetof(GuestContext, nzcv));
+    c.MSR(oaknut::SystemReg::NZCV, X0);
+
+    // Load all vector registers.
+    static constexpr size_t VEC_OFF = offsetof(GuestContext, vector_registers);
+    for (int i = 0; i <= 30; i += 2) {
+        c.LDP(oaknut::QReg{i}, oaknut::QReg{i + 1}, X30, VEC_OFF + 16 * i);
+    }
+
+    // Load all general-purpose registers except X30.
+    for (int i = 0; i <= 28; i += 2) {
+        c.LDP(oaknut::XReg{i}, oaknut::XReg{i + 1}, X30, 8 * i);
+    }
+
+    // Reload our return X30 from the stack and return.
+    // The patch code will reload the guest X30 for us.
+    c.LDR(X30, SP, 8);
+    c.RET();
+}
+
+void Patcher::WriteSaveContext() {
+    // This function was called, which modifies X30, so use that as a scratch register.
+    // SP contains the guest X30, so save our X30 to SP + 8, since we have allocated 16 bytes of
+    // stack.
+    c.STR(X30, SP, 8);
+    c.MRS(X30, oaknut::SystemReg::TPIDR_EL0);
+    c.LDR(X30, X30, offsetof(NativeExecutionParameters, native_context));
+
+    // Store all general-purpose registers except X30.
+    for (int i = 0; i <= 28; i += 2) {
+        c.STP(oaknut::XReg{i}, oaknut::XReg{i + 1}, X30, 8 * i);
+    }
+
+    // Store all vector registers.
+    static constexpr size_t VEC_OFF = offsetof(GuestContext, vector_registers);
+    for (int i = 0; i <= 30; i += 2) {
+        c.STP(oaknut::QReg{i}, oaknut::QReg{i + 1}, X30, VEC_OFF + 16 * i);
+    }
+
+    // Store guest system registers, X30 and SP, using X0 as a scratch register.
+    c.STR(X0, SP, PRE_INDEXED, -16);
+    c.LDR(X0, SP, 16);
+    c.STR(X0, X30, 8 * 30);
+    c.ADD(X0, SP, 32);
+    c.STR(X0, X30, offsetof(GuestContext, sp));
+    c.MRS(X0, oaknut::SystemReg::FPSR);
+    c.STR(W0, X30, offsetof(GuestContext, fpsr));
+    c.MRS(X0, oaknut::SystemReg::FPCR);
+    c.STR(W0, X30, offsetof(GuestContext, fpcr));
+    c.MRS(X0, oaknut::SystemReg::NZCV);
+    c.STR(W0, X30, offsetof(GuestContext, nzcv));
+    c.LDR(X0, SP, POST_INDEXED, 16);
+
+    // Reload our return X30 from the stack, and return.
+    c.LDR(X30, SP, 8);
+    c.RET();
+}
+
+void Patcher::WriteSvcTrampoline(ModuleDestLabel module_dest, u32 svc_id) {
+    // We are about to start saving state, so we need to lock the context.
+    this->LockContext();
+
+    // Store guest X30 to the stack. Then, save the context and restore the stack.
+    // This will save all registers except PC, but we know PC at patch time.
+    c.STR(X30, SP, PRE_INDEXED, -16);
+    c.BL(m_save_context);
+    c.LDR(X30, SP, POST_INDEXED, 16);
+
+    // Now that we've saved all registers, we can use any registers as scratch.
+    // Store PC + 4 to arm interface, since we know the instruction offset from the entry point.
+    oaknut::Label pc_after_svc;
+    c.MRS(X1, oaknut::SystemReg::TPIDR_EL0);
+    c.LDR(X1, X1, offsetof(NativeExecutionParameters, native_context));
+    c.LDR(X2, pc_after_svc);
+    c.STR(X2, X1, offsetof(GuestContext, pc));
+
+    // Store SVC number to execute when we return
+    c.MOV(X2, svc_id);
+    c.STR(W2, X1, offsetof(GuestContext, svc_swi));
+
+    // We are calling a SVC. Clear esr_el1 and return it.
+    static_assert(std::is_same_v<std::underlying_type_t<HaltReason>, u64>);
+    oaknut::Label retry;
+    c.ADD(X2, X1, offsetof(GuestContext, esr_el1));
+    c.l(retry);
+    c.LDAXR(X0, X2);
+    c.STLXR(W3, XZR, X2);
+    c.CBNZ(W3, retry);
+
+    // Add "calling SVC" flag. Since this is X0, this is now our return value.
+    c.ORR(X0, X0, static_cast<u64>(HaltReason::SupervisorCall));
+
+    // Offset the GuestContext pointer to the HostContext member.
+    // STP has limited range of [-512, 504] which we can't reach otherwise
+    // NB: Due to this all offsets below are from the start of HostContext.
+    c.ADD(X1, X1, offsetof(GuestContext, host_ctx));
+
+    // Reload host TPIDR_EL0 and SP.
+    static_assert(offsetof(HostContext, host_sp) + 8 == offsetof(HostContext, host_tpidr_el0));
+    c.LDP(X2, X3, X1, offsetof(HostContext, host_sp));
+    c.MOV(SP, X2);
+    c.MSR(oaknut::SystemReg::TPIDR_EL0, X3);
+
+    // Load callee-saved host registers and return to host.
+    static constexpr size_t HOST_REGS_OFF = offsetof(HostContext, host_saved_regs);
+    static constexpr size_t HOST_VREGS_OFF = offsetof(HostContext, host_saved_vregs);
+    c.LDP(X19, X20, X1, HOST_REGS_OFF);
+    c.LDP(X21, X22, X1, HOST_REGS_OFF + 2 * sizeof(u64));
+    c.LDP(X23, X24, X1, HOST_REGS_OFF + 4 * sizeof(u64));
+    c.LDP(X25, X26, X1, HOST_REGS_OFF + 6 * sizeof(u64));
+    c.LDP(X27, X28, X1, HOST_REGS_OFF + 8 * sizeof(u64));
+    c.LDP(X29, X30, X1, HOST_REGS_OFF + 10 * sizeof(u64));
+    c.LDP(Q8, Q9, X1, HOST_VREGS_OFF);
+    c.LDP(Q10, Q11, X1, HOST_VREGS_OFF + 2 * sizeof(u128));
+    c.LDP(Q12, Q13, X1, HOST_VREGS_OFF + 4 * sizeof(u128));
+    c.LDP(Q14, Q15, X1, HOST_VREGS_OFF + 6 * sizeof(u128));
+    c.RET();
+
+    // Write the post-SVC trampoline address, which will jump back to the guest after restoring its
+    // state.
+    m_trampolines.push_back({c.offset(), module_dest});
+
+    // Host called this location. Save the return address so we can
+    // unwind the stack properly when jumping back.
+    c.MRS(X2, oaknut::SystemReg::TPIDR_EL0);
+    c.LDR(X2, X2, offsetof(NativeExecutionParameters, native_context));
+    c.ADD(X0, X2, offsetof(GuestContext, host_ctx));
+    c.STR(X30, X0, offsetof(HostContext, host_saved_regs) + 11 * sizeof(u64));
+
+    // Reload all guest registers except X30 and PC.
+    // The function also expects 16 bytes of stack already allocated.
+    c.STR(X30, SP, PRE_INDEXED, -16);
+    c.BL(m_load_context);
+    c.LDR(X30, SP, POST_INDEXED, 16);
+
+    // Use X1 as a scratch register to restore X30.
+    c.STR(X1, SP, PRE_INDEXED, -16);
+    c.MRS(X1, oaknut::SystemReg::TPIDR_EL0);
+    c.LDR(X1, X1, offsetof(NativeExecutionParameters, native_context));
+    c.LDR(X30, X1, offsetof(GuestContext, cpu_registers) + sizeof(u64) * 30);
+    c.LDR(X1, SP, POST_INDEXED, 16);
+
+    // Unlock the context.
+    this->UnlockContext();
+
+    // Jump back to the instruction after the emulated SVC.
+    this->BranchToModule(module_dest);
+
+    // Store PC after call.
+    c.l(pc_after_svc);
+    this->WriteModulePc(module_dest);
+}
+
+void Patcher::WriteMrsHandler(ModuleDestLabel module_dest, oaknut::XReg dest_reg,
+                              oaknut::SystemReg src_reg) {
+    // Retrieve emulated TLS register from GuestContext.
+    c.MRS(dest_reg, oaknut::SystemReg::TPIDR_EL0);
+    if (src_reg == oaknut::SystemReg::TPIDRRO_EL0) {
+        c.LDR(dest_reg, dest_reg, offsetof(NativeExecutionParameters, tpidrro_el0));
+    } else {
+        c.LDR(dest_reg, dest_reg, offsetof(NativeExecutionParameters, tpidr_el0));
+    }
+
+    // Jump back to the instruction after the emulated MRS.
+    this->BranchToModule(module_dest);
+}
+
+void Patcher::WriteMsrHandler(ModuleDestLabel module_dest, oaknut::XReg src_reg) {
+    const auto scratch_reg = src_reg.index() == 0 ? X1 : X0;
+    c.STR(scratch_reg, SP, PRE_INDEXED, -16);
+
+    // Save guest value to NativeExecutionParameters::tpidr_el0.
+    c.MRS(scratch_reg, oaknut::SystemReg::TPIDR_EL0);
+    c.STR(src_reg, scratch_reg, offsetof(NativeExecutionParameters, tpidr_el0));
+
+    // Restore scratch register.
+    c.LDR(scratch_reg, SP, POST_INDEXED, 16);
+
+    // Jump back to the instruction after the emulated MSR.
+    this->BranchToModule(module_dest);
+}
+
+void Patcher::WriteCntpctHandler(ModuleDestLabel module_dest, oaknut::XReg dest_reg) {
+    static Common::Arm64::NativeClock clock{};
+    const auto factor = clock.GetGuestCNTFRQFactor();
+    const auto raw_factor = Common::BitCast<std::array<u64, 2>>(factor);
+
+    const auto use_x2_x3 = dest_reg.index() == 0 || dest_reg.index() == 1;
+    oaknut::XReg scratch0 = use_x2_x3 ? X2 : X0;
+    oaknut::XReg scratch1 = use_x2_x3 ? X3 : X1;
+
+    oaknut::Label factorlo;
+    oaknut::Label factorhi;
+
+    // Save scratches.
+    c.STP(scratch0, scratch1, SP, PRE_INDEXED, -16);
+
+    // Load counter value.
+    c.MRS(dest_reg, oaknut::SystemReg::CNTVCT_EL0);
+
+    // Load scaling factor.
+    c.LDR(scratch0, factorlo);
+    c.LDR(scratch1, factorhi);
+
+    // Multiply low bits and get result.
+    c.UMULH(scratch0, dest_reg, scratch0);
+
+    // Multiply high bits and add low bit result.
+    c.MADD(dest_reg, dest_reg, scratch1, scratch0);
+
+    // Reload scratches.
+    c.LDP(scratch0, scratch1, SP, POST_INDEXED, 16);
+
+    // Jump back to the instruction after the emulated MRS.
+    this->BranchToModule(module_dest);
+
+    // Scaling factor constant values.
+    c.l(factorlo);
+    c.dx(raw_factor[0]);
+    c.l(factorhi);
+    c.dx(raw_factor[1]);
+}
+
+void Patcher::LockContext() {
+    oaknut::Label retry;
+
+    // Save scratches.
+    c.STP(X0, X1, SP, PRE_INDEXED, -16);
+
+    // Reload lock pointer.
+    c.l(retry);
+    c.CLREX();
+    c.MRS(X0, oaknut::SystemReg::TPIDR_EL0);
+    c.ADD(X0, X0, offsetof(NativeExecutionParameters, lock));
+
+    static_assert(SpinLockLocked == 0);
+
+    // Load-linked with acquire ordering.
+    c.LDAXR(W1, X0);
+
+    // If the value was SpinLockLocked, clear monitor and retry.
+    c.CBZ(W1, retry);
+
+    // Store-conditional SpinLockLocked with relaxed ordering.
+    c.STXR(W1, WZR, X0);
+
+    // If we failed to store, retry.
+    c.CBNZ(W1, retry);
+
+    // We succeeded! Reload scratches.
+    c.LDP(X0, X1, SP, POST_INDEXED, 16);
+}
+
+void Patcher::UnlockContext() {
+    // Save scratches.
+    c.STP(X0, X1, SP, PRE_INDEXED, -16);
+
+    // Load lock pointer.
+    c.MRS(X0, oaknut::SystemReg::TPIDR_EL0);
+    c.ADD(X0, X0, offsetof(NativeExecutionParameters, lock));
+
+    // Load SpinLockUnlocked.
+    c.MOV(W1, SpinLockUnlocked);
+
+    // Store value with release ordering.
+    c.STLR(W1, X0);
+
+    // Load scratches.
+    c.LDP(X0, X1, SP, POST_INDEXED, 16);
+}
+
+} // namespace Core::NCE

src/core/arm/nce/patch.h

@@ -0,0 +1,101 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <span>
+#include <unordered_map>
+#include <vector>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wshorten-64-to-32"
+#include <oaknut/code_block.hpp>
+#include <oaknut/oaknut.hpp>
+#pragma GCC diagnostic pop
+
+#include "common/common_types.h"
+#include "core/hle/kernel/code_set.h"
+#include "core/hle/kernel/k_typed_address.h"
+#include "core/hle/kernel/physical_memory.h"
+
+namespace Core::NCE {
+
+enum class PatchMode : u32 {
+    None,
+    PreText,  ///< Patch section is inserted before .text
+    PostData, ///< Patch section is inserted after .data
+};
+
+using ModuleTextAddress = u64;
+using PatchTextAddress = u64;
+using EntryTrampolines = std::unordered_map<ModuleTextAddress, PatchTextAddress>;
+
+class Patcher {
+public:
+    explicit Patcher();
+    ~Patcher();
+
+    void PatchText(const Kernel::PhysicalMemory& program_image,
+                   const Kernel::CodeSet::Segment& code);
+    void RelocateAndCopy(Common::ProcessAddress load_base, const Kernel::CodeSet::Segment& code,
+                         Kernel::PhysicalMemory& program_image, EntryTrampolines* out_trampolines);
+    size_t GetSectionSize() const noexcept;
+
+    [[nodiscard]] PatchMode GetPatchMode() const noexcept {
+        return mode;
+    }
+
+private:
+    using ModuleDestLabel = uintptr_t;
+
+    struct Trampoline {
+        ptrdiff_t patch_offset;
+        uintptr_t module_offset;
+    };
+
+    void WriteLoadContext();
+    void WriteSaveContext();
+    void LockContext();
+    void UnlockContext();
+    void WriteSvcTrampoline(ModuleDestLabel module_dest, u32 svc_id);
+    void WriteMrsHandler(ModuleDestLabel module_dest, oaknut::XReg dest_reg,
+                         oaknut::SystemReg src_reg);
+    void WriteMsrHandler(ModuleDestLabel module_dest, oaknut::XReg src_reg);
+    void WriteCntpctHandler(ModuleDestLabel module_dest, oaknut::XReg dest_reg);
+
+private:
+    void BranchToPatch(uintptr_t module_dest) {
+        m_branch_to_patch_relocations.push_back({c.offset(), module_dest});
+    }
+
+    void BranchToModule(uintptr_t module_dest) {
+        m_branch_to_module_relocations.push_back({c.offset(), module_dest});
+        c.dw(0);
+    }
+
+    void WriteModulePc(uintptr_t module_dest) {
+        m_write_module_pc_relocations.push_back({c.offset(), module_dest});
+        c.dx(0);
+    }
+
+private:
+    // List of patch instructions we have generated.
+    std::vector<u32> m_patch_instructions{};
+
+    // Relocation type for relative branch from module to patch.
+    struct Relocation {
+        ptrdiff_t patch_offset;  ///< Offset in bytes from the start of the patch section.
+        uintptr_t module_offset; ///< Offset in bytes from the start of the text section.
+    };
+
+    oaknut::VectorCodeGenerator c;
+    std::vector<Trampoline> m_trampolines;
+    std::vector<Relocation> m_branch_to_patch_relocations{};
+    std::vector<Relocation> m_branch_to_module_relocations{};
+    std::vector<Relocation> m_write_module_pc_relocations{};
+    oaknut::Label m_save_context{};
+    oaknut::Label m_load_context{};
+    PatchMode mode{PatchMode::None};
+};
+
+} // namespace Core::NCE

src/core/core_timing.cpp

@@ -76,6 +76,7 @@ void CoreTiming::Initialize(std::function<void()>&& on_thread_init_) {
 }
 
 void CoreTiming::ClearPendingEvents() {
+    std::scoped_lock lock{basic_lock};
     event_queue.clear();
 }
 
@@ -113,6 +114,7 @@ bool CoreTiming::IsRunning() const {
 }
 
 bool CoreTiming::HasPendingEvents() const {
+    std::scoped_lock lock{basic_lock};
     return !(wait_set && event_queue.empty());
 }
 

src/core/core_timing.h

@@ -161,7 +161,7 @@ private:
     std::shared_ptr<EventType> ev_lost;
     Common::Event event{};
     Common::Event pause_event{};
-    std::mutex basic_lock;
+    mutable std::mutex basic_lock;
     std::mutex advance_lock;
     std::unique_ptr<std::jthread> timer_thread;
     std::atomic<bool> paused{};

src/core/cpu_manager.cpp

@@ -211,6 +211,8 @@ void CpuManager::RunThread(std::stop_token token, std::size_t core) {
         system.GPU().ObtainContext();
     }
 
+    system.ArmInterface(core).Initialize();
+
     auto& kernel = system.Kernel();
     auto& scheduler = *kernel.CurrentScheduler();
     auto* thread = scheduler.GetSchedulerCurrentThread();

src/core/debugger/gdbstub.cpp

@@ -562,6 +562,120 @@ static std::string PaginateBuffer(std::string_view buffer, std::string_view requ
     }
 }
 
+static VAddr GetModuleEnd(Kernel::KProcessPageTable& page_table, VAddr base) {
+    Kernel::KMemoryInfo mem_info;
+    Kernel::Svc::MemoryInfo svc_mem_info;
+    Kernel::Svc::PageInfo page_info;
+    VAddr cur_addr{base};
+
+    // Expect: r-x Code (.text)
+    R_ASSERT(page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info), cur_addr));
+    svc_mem_info = mem_info.GetSvcMemoryInfo();
+    cur_addr = svc_mem_info.base_address + svc_mem_info.size;
+    if (svc_mem_info.state != Kernel::Svc::MemoryState::Code ||
+        svc_mem_info.permission != Kernel::Svc::MemoryPermission::ReadExecute) {
+        return cur_addr - 1;
+    }
+
+    // Expect: r-- Code (.rodata)
+    R_ASSERT(page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info), cur_addr));
+    svc_mem_info = mem_info.GetSvcMemoryInfo();
+    cur_addr = svc_mem_info.base_address + svc_mem_info.size;
+    if (svc_mem_info.state != Kernel::Svc::MemoryState::Code ||
+        svc_mem_info.permission != Kernel::Svc::MemoryPermission::Read) {
+        return cur_addr - 1;
+    }
+
+    // Expect: rw- CodeData (.data)
+    R_ASSERT(page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info), cur_addr));
+    svc_mem_info = mem_info.GetSvcMemoryInfo();
+    cur_addr = svc_mem_info.base_address + svc_mem_info.size;
+    return cur_addr - 1;
+}
+
+static Loader::AppLoader::Modules FindModules(Core::System& system) {
+    Loader::AppLoader::Modules modules;
+
+    auto& page_table = system.ApplicationProcess()->GetPageTable();
+    auto& memory = system.ApplicationMemory();
+    VAddr cur_addr = 0;
+
+    // Look for executable sections in Code or AliasCode regions.
+    while (true) {
+        Kernel::KMemoryInfo mem_info{};
+        Kernel::Svc::PageInfo page_info{};
+        R_ASSERT(
+            page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info), cur_addr));
+        auto svc_mem_info = mem_info.GetSvcMemoryInfo();
+
+        if (svc_mem_info.permission == Kernel::Svc::MemoryPermission::ReadExecute &&
+            (svc_mem_info.state == Kernel::Svc::MemoryState::Code ||
+             svc_mem_info.state == Kernel::Svc::MemoryState::AliasCode)) {
+            // Try to read the module name from its path.
+            constexpr s32 PathLengthMax = 0x200;
+            struct {
+                u32 zero;
+                s32 path_length;
+                std::array<char, PathLengthMax> path;
+            } module_path;
+
+            if (memory.ReadBlock(svc_mem_info.base_address + svc_mem_info.size, &module_path,
+                                 sizeof(module_path))) {
+                if (module_path.zero == 0 && module_path.path_length > 0) {
+                    // Truncate module name.
+                    module_path.path[PathLengthMax - 1] = '\0';
+
+                    // Ignore leading directories.
+                    char* path_pointer = module_path.path.data();
+
+                    for (s32 i = 0; i < std::min(PathLengthMax, module_path.path_length) &&
+                                    module_path.path[i] != '\0';
+                         i++) {
+                        if (module_path.path[i] == '/' || module_path.path[i] == '\\') {
+                            path_pointer = module_path.path.data() + i + 1;
+                        }
+                    }
+
+                    // Insert output.
+                    modules.emplace(svc_mem_info.base_address, path_pointer);
+                }
+            }
+        }
+
+        // Check if we're done.
+        const uintptr_t next_address = svc_mem_info.base_address + svc_mem_info.size;
+        if (next_address <= cur_addr) {
+            break;
+        }
+
+        cur_addr = next_address;
+    }
+
+    return modules;
+}
+
+static VAddr FindMainModuleEntrypoint(Core::System& system) {
+    Loader::AppLoader::Modules modules;
+    system.GetAppLoader().ReadNSOModules(modules);
+
+    // Do we have a module named main?
+    const auto main = std::find_if(modules.begin(), modules.end(),
+                                   [](const auto& key) { return key.second == "main"; });
+
+    if (main != modules.end()) {
+        return main->first;
+    }
+
+    // Do we have any loaded executable sections?
+    modules = FindModules(system);
+    if (!modules.empty()) {
+        return modules.begin()->first;
+    }
+
+    // As a last resort, use the start of the code region.
+    return GetInteger(system.ApplicationProcess()->GetPageTable().GetCodeRegionStart());
+}
+
 void GDBStub::HandleQuery(std::string_view command) {
     if (command.starts_with("TStatus")) {
         // no tracepoint support
@@ -573,21 +687,10 @@ void GDBStub::HandleQuery(std::string_view command) {
         const auto target_xml{arch->GetTargetXML()};
         SendReply(PaginateBuffer(target_xml, command.substr(30)));
     } else if (command.starts_with("Offsets")) {
-        Loader::AppLoader::Modules modules;
+        const auto main_offset = FindMainModuleEntrypoint(system);
-        system.GetAppLoader().ReadNSOModules(modules);
+        SendReply(fmt::format("TextSeg={:x}", main_offset));
-
-        const auto main = std::find_if(modules.begin(), modules.end(),
-                                       [](const auto& key) { return key.second == "main"; });
-        if (main != modules.end()) {
-            SendReply(fmt::format("TextSeg={:x}", main->first));
-        } else {
-            SendReply(fmt::format(
-                "TextSeg={:x}",
-                GetInteger(system.ApplicationProcess()->GetPageTable().GetCodeRegionStart())));
-        }
     } else if (command.starts_with("Xfer:libraries:read::")) {
-        Loader::AppLoader::Modules modules;
+        auto modules = FindModules(system);
-        system.GetAppLoader().ReadNSOModules(modules);
 
         std::string buffer;
         buffer += R"(<?xml version="1.0"?>)";
@@ -727,32 +830,6 @@ static constexpr const char* GetMemoryPermissionString(const Kernel::Svc::Memory
     }
 }
 
-static VAddr GetModuleEnd(Kernel::KPageTable& page_table, VAddr base) {
-    Kernel::Svc::MemoryInfo mem_info;
-    VAddr cur_addr{base};
-
-    // Expect: r-x Code (.text)
-    mem_info = page_table.QueryInfo(cur_addr).GetSvcMemoryInfo();
-    cur_addr = mem_info.base_address + mem_info.size;
-    if (mem_info.state != Kernel::Svc::MemoryState::Code ||
-        mem_info.permission != Kernel::Svc::MemoryPermission::ReadExecute) {
-        return cur_addr - 1;
-    }
-
-    // Expect: r-- Code (.rodata)
-    mem_info = page_table.QueryInfo(cur_addr).GetSvcMemoryInfo();
-    cur_addr = mem_info.base_address + mem_info.size;
-    if (mem_info.state != Kernel::Svc::MemoryState::Code ||
-        mem_info.permission != Kernel::Svc::MemoryPermission::Read) {
-        return cur_addr - 1;
-    }
-
-    // Expect: rw- CodeData (.data)
-    mem_info = page_table.QueryInfo(cur_addr).GetSvcMemoryInfo();
-    cur_addr = mem_info.base_address + mem_info.size;
-    return cur_addr - 1;
-}
-
 void GDBStub::HandleRcmd(const std::vector<u8>& command) {
     std::string_view command_str{reinterpret_cast<const char*>(&command[0]), command.size()};
     std::string reply;
@@ -767,7 +844,7 @@ void GDBStub::HandleRcmd(const std::vector<u8>& command) {
 
     if (command_str == "get fastmem") {
         if (Settings::IsFastmemEnabled()) {
-            const auto& impl = page_table.PageTableImpl();
+            const auto& impl = page_table.GetImpl();
             const auto region = reinterpret_cast<uintptr_t>(impl.fastmem_arena);
             const auto region_bits = impl.current_address_space_width_in_bits;
             const auto region_size = 1ULL << region_bits;
@@ -779,26 +856,27 @@ void GDBStub::HandleRcmd(const std::vector<u8>& command) {
             reply = "Fastmem is not enabled.\n";
         }
     } else if (command_str == "get info") {
-        Loader::AppLoader::Modules modules;
+        auto modules = FindModules(system);
-        system.GetAppLoader().ReadNSOModules(modules);
 
         reply = fmt::format("Process:     {:#x} ({})\n"
                             "Program Id:  {:#018x}\n",
                             process->GetProcessId(), process->GetName(), process->GetProgramId());
-        reply += fmt::format("Layout:\n"
+        reply += fmt::format(
+            "Layout:\n"
             "  Alias: {:#012x} - {:#012x}\n"
             "  Heap:  {:#012x} - {:#012x}\n"
             "  Aslr:  {:#012x} - {:#012x}\n"
             "  Stack: {:#012x} - {:#012x}\n"
             "Modules:\n",
             GetInteger(page_table.GetAliasRegionStart()),
-                             GetInteger(page_table.GetAliasRegionEnd()),
+            GetInteger(page_table.GetAliasRegionStart()) + page_table.GetAliasRegionSize() - 1,
             GetInteger(page_table.GetHeapRegionStart()),
-                             GetInteger(page_table.GetHeapRegionEnd()),
+            GetInteger(page_table.GetHeapRegionStart()) + page_table.GetHeapRegionSize() - 1,
             GetInteger(page_table.GetAliasCodeRegionStart()),
-                             GetInteger(page_table.GetAliasCodeRegionEnd()),
+            GetInteger(page_table.GetAliasCodeRegionStart()) + page_table.GetAliasCodeRegionSize() -
+                1,
             GetInteger(page_table.GetStackRegionStart()),
-                             GetInteger(page_table.GetStackRegionEnd()));
+            GetInteger(page_table.GetStackRegionStart()) + page_table.GetStackRegionSize() - 1);
 
         for (const auto& [vaddr, name] : modules) {
             reply += fmt::format("  {:#012x} - {:#012x} {}\n", vaddr,
@@ -811,27 +889,34 @@ void GDBStub::HandleRcmd(const std::vector<u8>& command) {
         while (true) {
             using MemoryAttribute = Kernel::Svc::MemoryAttribute;
 
-            auto mem_info = page_table.QueryInfo(cur_addr).GetSvcMemoryInfo();
+            Kernel::KMemoryInfo mem_info{};
+            Kernel::Svc::PageInfo page_info{};
+            R_ASSERT(page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info),
+                                          cur_addr));
+            auto svc_mem_info = mem_info.GetSvcMemoryInfo();
 
-            if (mem_info.state != Kernel::Svc::MemoryState::Inaccessible ||
+            if (svc_mem_info.state != Kernel::Svc::MemoryState::Inaccessible ||
-                mem_info.base_address + mem_info.size - 1 != std::numeric_limits<u64>::max()) {
+                svc_mem_info.base_address + svc_mem_info.size - 1 !=
-                const char* state = GetMemoryStateName(mem_info.state);
+                    std::numeric_limits<u64>::max()) {
-                const char* perm = GetMemoryPermissionString(mem_info);
+                const char* state = GetMemoryStateName(svc_mem_info.state);
+                const char* perm = GetMemoryPermissionString(svc_mem_info);
 
-                const char l = True(mem_info.attribute & MemoryAttribute::Locked) ? 'L' : '-';
+                const char l = True(svc_mem_info.attribute & MemoryAttribute::Locked) ? 'L' : '-';
-                const char i = True(mem_info.attribute & MemoryAttribute::IpcLocked) ? 'I' : '-';
+                const char i =
-                const char d = True(mem_info.attribute & MemoryAttribute::DeviceShared) ? 'D' : '-';
+                    True(svc_mem_info.attribute & MemoryAttribute::IpcLocked) ? 'I' : '-';
-                const char u = True(mem_info.attribute & MemoryAttribute::Uncached) ? 'U' : '-';
+                const char d =
+                    True(svc_mem_info.attribute & MemoryAttribute::DeviceShared) ? 'D' : '-';
+                const char u = True(svc_mem_info.attribute & MemoryAttribute::Uncached) ? 'U' : '-';
                 const char p =
-                    True(mem_info.attribute & MemoryAttribute::PermissionLocked) ? 'P' : '-';
+                    True(svc_mem_info.attribute & MemoryAttribute::PermissionLocked) ? 'P' : '-';
 
-                reply += fmt::format("  {:#012x} - {:#012x} {} {} {}{}{}{}{} [{}, {}]\n",
+                reply += fmt::format(
-                                     mem_info.base_address,
+                    "  {:#012x} - {:#012x} {} {} {}{}{}{}{} [{}, {}]\n", svc_mem_info.base_address,
-                                     mem_info.base_address + mem_info.size - 1, perm, state, l, i,
+                    svc_mem_info.base_address + svc_mem_info.size - 1, perm, state, l, i, d, u, p,
-                                     d, u, p, mem_info.ipc_count, mem_info.device_count);
+                    svc_mem_info.ipc_count, svc_mem_info.device_count);
             }
 
-            const uintptr_t next_address = mem_info.base_address + mem_info.size;
+            const uintptr_t next_address = svc_mem_info.base_address + svc_mem_info.size;
             if (next_address <= cur_addr) {
                 break;
             }

src/core/device_memory.cpp

@@ -6,7 +6,7 @@
 
 namespace Core {
 
-#ifdef ANDROID
+#ifdef ARCHITECTURE_arm64
 constexpr size_t VirtualReserveSize = 1ULL << 38;
 #else
 constexpr size_t VirtualReserveSize = 1ULL << 39;
@@ -15,6 +15,7 @@ constexpr size_t VirtualReserveSize = 1ULL << 39;
 DeviceMemory::DeviceMemory()
     : buffer{Kernel::Board::Nintendo::Nx::KSystemControl::Init::GetIntendedMemorySize(),
              VirtualReserveSize} {}
+
 DeviceMemory::~DeviceMemory() = default;
 
 } // namespace Core

src/core/hid/emulated_console.h

@@ -38,14 +38,6 @@ using TouchParams = std::array<Common::ParamPackage, MaxTouchDevices>;
 using ConsoleMotionValues = ConsoleMotionInfo;
 using TouchValues = std::array<Common::Input::TouchStatus, MaxTouchDevices>;
 
-struct TouchFinger {
-    u64 last_touch{};
-    Common::Point<float> position{};
-    u32 id{};
-    TouchAttribute attribute{};
-    bool pressed{};
-};
-
 // Contains all motion related data that is used on the services
 struct ConsoleMotion {
     Common::Vec3f accel{};

src/core/hid/emulated_controller.cpp

@@ -243,10 +243,12 @@ void EmulatedController::LoadTASParams() {
     tas_button_params[Settings::NativeButton::DUp].Set("button", 13);
     tas_button_params[Settings::NativeButton::DRight].Set("button", 14);
     tas_button_params[Settings::NativeButton::DDown].Set("button", 15);
-    tas_button_params[Settings::NativeButton::SL].Set("button", 16);
+    tas_button_params[Settings::NativeButton::SLLeft].Set("button", 16);
-    tas_button_params[Settings::NativeButton::SR].Set("button", 17);
+    tas_button_params[Settings::NativeButton::SRLeft].Set("button", 17);
     tas_button_params[Settings::NativeButton::Home].Set("button", 18);
     tas_button_params[Settings::NativeButton::Screenshot].Set("button", 19);
+    tas_button_params[Settings::NativeButton::SLRight].Set("button", 20);
+    tas_button_params[Settings::NativeButton::SRRight].Set("button", 21);
 
     tas_stick_params[Settings::NativeAnalog::LStick].Set("axis_x", 0);
     tas_stick_params[Settings::NativeAnalog::LStick].Set("axis_y", 1);
@@ -296,10 +298,12 @@ void EmulatedController::LoadVirtualGamepadParams() {
     virtual_button_params[Settings::NativeButton::DUp].Set("button", 13);
     virtual_button_params[Settings::NativeButton::DRight].Set("button", 14);
     virtual_button_params[Settings::NativeButton::DDown].Set("button", 15);
-    virtual_button_params[Settings::NativeButton::SL].Set("button", 16);
+    virtual_button_params[Settings::NativeButton::SLLeft].Set("button", 16);
-    virtual_button_params[Settings::NativeButton::SR].Set("button", 17);
+    virtual_button_params[Settings::NativeButton::SRLeft].Set("button", 17);
     virtual_button_params[Settings::NativeButton::Home].Set("button", 18);
     virtual_button_params[Settings::NativeButton::Screenshot].Set("button", 19);
+    virtual_button_params[Settings::NativeButton::SLRight].Set("button", 20);
+    virtual_button_params[Settings::NativeButton::SRRight].Set("button", 21);
 
     virtual_stick_params[Settings::NativeAnalog::LStick].Set("axis_x", 0);
     virtual_stick_params[Settings::NativeAnalog::LStick].Set("axis_y", 1);
@@ -867,12 +871,16 @@ void EmulatedController::SetButton(const Common::Input::CallbackStatus& callback
         controller.npad_button_state.down.Assign(current_status.value);
         controller.debug_pad_button_state.d_down.Assign(current_status.value);
         break;
-    case Settings::NativeButton::SL:
+    case Settings::NativeButton::SLLeft:
         controller.npad_button_state.left_sl.Assign(current_status.value);
+        break;
+    case Settings::NativeButton::SLRight:
         controller.npad_button_state.right_sl.Assign(current_status.value);
         break;
-    case Settings::NativeButton::SR:
+    case Settings::NativeButton::SRLeft:
         controller.npad_button_state.left_sr.Assign(current_status.value);
+        break;
+    case Settings::NativeButton::SRRight:
         controller.npad_button_state.right_sr.Assign(current_status.value);
         break;
     case Settings::NativeButton::Home:
@@ -1890,12 +1898,16 @@ NpadButton EmulatedController::GetTurboButtonMask() const {
         case Settings::NativeButton::DDown:
             button_mask.down.Assign(1);
             break;
-        case Settings::NativeButton::SL:
+        case Settings::NativeButton::SLLeft:
             button_mask.left_sl.Assign(1);
+            break;
+        case Settings::NativeButton::SLRight:
             button_mask.right_sl.Assign(1);
             break;
-        case Settings::NativeButton::SR:
+        case Settings::NativeButton::SRLeft:
             button_mask.left_sr.Assign(1);
+            break;
+        case Settings::NativeButton::SRRight:
             button_mask.right_sr.Assign(1);
             break;
         default:

src/core/hid/hid_types.h

@@ -356,6 +356,14 @@ struct TouchState {
 };
 static_assert(sizeof(TouchState) == 0x28, "Touchstate is an invalid size");
 
+struct TouchFinger {
+    u64 last_touch{};
+    Common::Point<float> position{};
+    u32 id{};
+    TouchAttribute attribute{};
+    bool pressed{};
+};
+
 // This is nn::hid::TouchScreenConfigurationForNx
 struct TouchScreenConfigurationForNx {
     TouchScreenModeForNx mode{TouchScreenModeForNx::UseSystemSetting};

src/core/hid/input_interpreter.cpp

@@ -5,13 +5,14 @@
 #include "core/hid/hid_types.h"
 #include "core/hid/input_interpreter.h"
 #include "core/hle/service/hid/controllers/npad.h"
-#include "core/hle/service/hid/hid.h"
+#include "core/hle/service/hid/hid_server.h"
+#include "core/hle/service/hid/resource_manager.h"
 #include "core/hle/service/sm/sm.h"
 
 InputInterpreter::InputInterpreter(Core::System& system)
     : npad{system.ServiceManager()
-               .GetService<Service::HID::Hid>("hid")
+               .GetService<Service::HID::IHidServer>("hid")
-               ->GetAppletResource()
+               ->GetResourceManager()
                ->GetController<Service::HID::Controller_NPad>(Service::HID::HidController::NPad)} {
     ResetButtonStates();
 }

src/core/hle/kernel/board/nintendo/nx/k_system_control.cpp

@@ -222,7 +222,7 @@ Result KSystemControl::AllocateSecureMemory(KernelCore& kernel, KVirtualAddress*
     };
 
     // We succeeded.
-    *out = KPageTable::GetHeapVirtualAddress(kernel.MemoryLayout(), paddr);
+    *out = KPageTable::GetHeapVirtualAddress(kernel, paddr);
     R_SUCCEED();
 }
 
@@ -238,8 +238,17 @@ void KSystemControl::FreeSecureMemory(KernelCore& kernel, KVirtualAddress addres
     ASSERT(Common::IsAligned(size, alignment));
 
     // Close the secure region's pages.
-    kernel.MemoryManager().Close(KPageTable::GetHeapPhysicalAddress(kernel.MemoryLayout(), address),
+    kernel.MemoryManager().Close(KPageTable::GetHeapPhysicalAddress(kernel, address),
                                  size / PageSize);
 }
 
+// Insecure Memory.
+KResourceLimit* KSystemControl::GetInsecureMemoryResourceLimit(KernelCore& kernel) {
+    return kernel.GetSystemResourceLimit();
+}
+
+u32 KSystemControl::GetInsecureMemoryPool() {
+    return static_cast<u32>(KMemoryManager::Pool::SystemNonSecure);
+}
+
 } // namespace Kernel::Board::Nintendo::Nx

src/core/hle/kernel/board/nintendo/nx/k_system_control.h

@@ -8,7 +8,8 @@
 
 namespace Kernel {
 class KernelCore;
-}
+class KResourceLimit;
+} // namespace Kernel
 
 namespace Kernel::Board::Nintendo::Nx {
 
@@ -40,6 +41,10 @@ public:
                                        u32 pool);
     static void FreeSecureMemory(KernelCore& kernel, KVirtualAddress address, size_t size,
                                  u32 pool);
+
+    // Insecure Memory.
+    static KResourceLimit* GetInsecureMemoryResourceLimit(KernelCore& kernel);
+    static u32 GetInsecureMemoryPool();
 };
 
 } // namespace Kernel::Board::Nintendo::Nx

src/core/hle/kernel/code_set.h

@@ -75,11 +75,20 @@ struct CodeSet final {
         return segments[2];
     }
 
+    Segment& PatchSegment() {
+        return patch_segment;
+    }
+
+    const Segment& PatchSegment() const {
+        return patch_segment;
+    }
+
     /// The overall data that backs this code set.
     Kernel::PhysicalMemory memory;
 
     /// The segments that comprise this code set.
     std::array<Segment, 3> segments;
+    Segment patch_segment;
 
     /// The entry point address for this code set.
     KProcessAddress entrypoint = 0;

src/core/hle/kernel/k_address_space_info.cpp

@@ -25,8 +25,8 @@ constexpr std::array<KAddressSpaceInfo, 13> AddressSpaceInfos{{
    { .bit_width = 36, .address = 2_GiB       , .size = 64_GiB  - 2_GiB  , .type = KAddressSpaceInfo::Type::MapLarge, },
    { .bit_width = 36, .address = Size_Invalid, .size = 8_GiB            , .type = KAddressSpaceInfo::Type::Heap,     },
    { .bit_width = 36, .address = Size_Invalid, .size = 6_GiB            , .type = KAddressSpaceInfo::Type::Alias,    },
-#ifdef ANDROID
+#ifdef ARCHITECTURE_arm64
-   // With Android, we use a 38-bit address space due to memory limitations. This should (safely) truncate ASLR region.
+   // With NCE, we use a 38-bit address space due to memory limitations. This should (safely) truncate ASLR region.
    { .bit_width = 39, .address = 128_MiB     , .size = 256_GiB - 128_MiB, .type = KAddressSpaceInfo::Type::Map39Bit, },
 #else
    { .bit_width = 39, .address = 128_MiB     , .size = 512_GiB - 128_MiB, .type = KAddressSpaceInfo::Type::Map39Bit, },

src/core/hle/kernel/k_capabilities.cpp

@@ -4,14 +4,16 @@
 #include "core/hardware_properties.h"
 #include "core/hle/kernel/k_capabilities.h"
 #include "core/hle/kernel/k_memory_layout.h"
-#include "core/hle/kernel/k_page_table.h"
+#include "core/hle/kernel/k_process_page_table.h"
+#include "core/hle/kernel/k_trace.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/svc_results.h"
 #include "core/hle/kernel/svc_version.h"
 
 namespace Kernel {
 
-Result KCapabilities::InitializeForKip(std::span<const u32> kern_caps, KPageTable* page_table) {
+Result KCapabilities::InitializeForKip(std::span<const u32> kern_caps,
+                                       KProcessPageTable* page_table) {
     // We're initializing an initial process.
     m_svc_access_flags.reset();
     m_irq_access_flags.reset();
@@ -41,7 +43,8 @@ Result KCapabilities::InitializeForKip(std::span<const u32> kern_caps, KPageTabl
     R_RETURN(this->SetCapabilities(kern_caps, page_table));
 }
 
-Result KCapabilities::InitializeForUser(std::span<const u32> user_caps, KPageTable* page_table) {
+Result KCapabilities::InitializeForUser(std::span<const u32> user_caps,
+                                        KProcessPageTable* page_table) {
     // We're initializing a user process.
     m_svc_access_flags.reset();
     m_irq_access_flags.reset();
@@ -121,7 +124,7 @@ Result KCapabilities::SetSyscallMaskCapability(const u32 cap, u32& set_svc) {
     R_SUCCEED();
 }
 
-Result KCapabilities::MapRange_(const u32 cap, const u32 size_cap, KPageTable* page_table) {
+Result KCapabilities::MapRange_(const u32 cap, const u32 size_cap, KProcessPageTable* page_table) {
     const auto range_pack = MapRange{cap};
     const auto size_pack = MapRangeSize{size_cap};
 
@@ -142,16 +145,13 @@ Result KCapabilities::MapRange_(const u32 cap, const u32 size_cap, KPageTable* p
                                                         ? KMemoryPermission::UserRead
                                                         : KMemoryPermission::UserReadWrite;
     if (MapRangeSize{size_cap}.normal) {
-        // R_RETURN(page_table->MapStatic(phys_addr, size, perm));
+        R_RETURN(page_table->MapStatic(phys_addr, size, perm));
     } else {
-        // R_RETURN(page_table->MapIo(phys_addr, size, perm));
+        R_RETURN(page_table->MapIo(phys_addr, size, perm));
+    }
 }
 
-    UNIMPLEMENTED();
+Result KCapabilities::MapIoPage_(const u32 cap, KProcessPageTable* page_table) {
-    R_SUCCEED();
-}
-
-Result KCapabilities::MapIoPage_(const u32 cap, KPageTable* page_table) {
     // Get/validate address/size
     const u64 phys_addr = MapIoPage{cap}.address.Value() * PageSize;
     const size_t num_pages = 1;
@@ -160,10 +160,7 @@ Result KCapabilities::MapIoPage_(const u32 cap, KPageTable* page_table) {
     R_UNLESS(((phys_addr + size - 1) & ~PhysicalMapAllowedMask) == 0, ResultInvalidAddress);
 
     // Do the mapping.
-    // R_RETURN(page_table->MapIo(phys_addr, size, KMemoryPermission_UserReadWrite));
+    R_RETURN(page_table->MapIo(phys_addr, size, KMemoryPermission::UserReadWrite));
-
-    UNIMPLEMENTED();
-    R_SUCCEED();
 }
 
 template <typename F>
@@ -200,13 +197,11 @@ Result KCapabilities::ProcessMapRegionCapability(const u32 cap, F f) {
     R_SUCCEED();
 }
 
-Result KCapabilities::MapRegion_(const u32 cap, KPageTable* page_table) {
+Result KCapabilities::MapRegion_(const u32 cap, KProcessPageTable* page_table) {
     // Map each region into the process's page table.
     return ProcessMapRegionCapability(
-        cap, [](KMemoryRegionType region_type, KMemoryPermission perm) -> Result {
+        cap, [page_table](KMemoryRegionType region_type, KMemoryPermission perm) -> Result {
-            // R_RETURN(page_table->MapRegion(region_type, perm));
+            R_RETURN(page_table->MapRegion(region_type, perm));
-            UNIMPLEMENTED();
-            R_SUCCEED();
         });
 }
 
@@ -280,7 +275,7 @@ Result KCapabilities::SetDebugFlagsCapability(const u32 cap) {
 }
 
 Result KCapabilities::SetCapability(const u32 cap, u32& set_flags, u32& set_svc,
-                                    KPageTable* page_table) {
+                                    KProcessPageTable* page_table) {
     // Validate this is a capability we can act on.
     const auto type = GetCapabilityType(cap);
     R_UNLESS(type != CapabilityType::Invalid, ResultInvalidArgument);
@@ -318,7 +313,7 @@ Result KCapabilities::SetCapability(const u32 cap, u32& set_flags, u32& set_svc,
     }
 }
 
-Result KCapabilities::SetCapabilities(std::span<const u32> caps, KPageTable* page_table) {
+Result KCapabilities::SetCapabilities(std::span<const u32> caps, KProcessPageTable* page_table) {
     u32 set_flags = 0, set_svc = 0;
 
     for (size_t i = 0; i < caps.size(); i++) {
@@ -335,6 +330,8 @@ Result KCapabilities::SetCapabilities(std::span<const u32> caps, KPageTable* pag
 
             // Map the range.
             R_TRY(this->MapRange_(cap, size_cap, page_table));
+        } else if (GetCapabilityType(cap) == CapabilityType::MapRegion && !IsKTraceEnabled) {
+            continue;
         } else {
             R_TRY(this->SetCapability(cap, set_flags, set_svc, page_table));
         }

src/core/hle/kernel/k_capabilities.h

@@ -15,15 +15,15 @@
 
 namespace Kernel {
 
-class KPageTable;
+class KProcessPageTable;
 class KernelCore;
 
 class KCapabilities {
 public:
     constexpr explicit KCapabilities() = default;
 
-    Result InitializeForKip(std::span<const u32> kern_caps, KPageTable* page_table);
+    Result InitializeForKip(std::span<const u32> kern_caps, KProcessPageTable* page_table);
-    Result InitializeForUser(std::span<const u32> user_caps, KPageTable* page_table);
+    Result InitializeForUser(std::span<const u32> user_caps, KProcessPageTable* page_table);
 
     static Result CheckCapabilities(KernelCore& kernel, std::span<const u32> user_caps);
 
@@ -264,9 +264,9 @@ private:
 
     Result SetCorePriorityCapability(const u32 cap);
     Result SetSyscallMaskCapability(const u32 cap, u32& set_svc);
-    Result MapRange_(const u32 cap, const u32 size_cap, KPageTable* page_table);
+    Result MapRange_(const u32 cap, const u32 size_cap, KProcessPageTable* page_table);
-    Result MapIoPage_(const u32 cap, KPageTable* page_table);
+    Result MapIoPage_(const u32 cap, KProcessPageTable* page_table);
-    Result MapRegion_(const u32 cap, KPageTable* page_table);
+    Result MapRegion_(const u32 cap, KProcessPageTable* page_table);
     Result SetInterruptPairCapability(const u32 cap);
     Result SetProgramTypeCapability(const u32 cap);
     Result SetKernelVersionCapability(const u32 cap);
@@ -277,8 +277,9 @@ private:
     static Result ProcessMapRegionCapability(const u32 cap, F f);
     static Result CheckMapRegion(KernelCore& kernel, const u32 cap);
 
-    Result SetCapability(const u32 cap, u32& set_flags, u32& set_svc, KPageTable* page_table);
+    Result SetCapability(const u32 cap, u32& set_flags, u32& set_svc,
-    Result SetCapabilities(std::span<const u32> caps, KPageTable* page_table);
+                         KProcessPageTable* page_table);
+    Result SetCapabilities(std::span<const u32> caps, KProcessPageTable* page_table);
 
 private:
     Svc::SvcAccessFlagSet m_svc_access_flags{};

src/core/hle/kernel/k_device_address_space.cpp

@@ -54,7 +54,7 @@ Result KDeviceAddressSpace::Detach(Svc::DeviceName device_name) {
     R_SUCCEED();
 }
 
-Result KDeviceAddressSpace::Map(KPageTable* page_table, KProcessAddress process_address,
+Result KDeviceAddressSpace::Map(KProcessPageTable* page_table, KProcessAddress process_address,
                                 size_t size, u64 device_address, u32 option, bool is_aligned) {
     // Check that the address falls within the space.
     R_UNLESS((m_space_address <= device_address &&
@@ -113,7 +113,7 @@ Result KDeviceAddressSpace::Map(KPageTable* page_table, KProcessAddress process_
     R_SUCCEED();
 }
 
-Result KDeviceAddressSpace::Unmap(KPageTable* page_table, KProcessAddress process_address,
+Result KDeviceAddressSpace::Unmap(KProcessPageTable* page_table, KProcessAddress process_address,
                                   size_t size, u64 device_address) {
     // Check that the address falls within the space.
     R_UNLESS((m_space_address <= device_address &&

src/core/hle/kernel/k_device_address_space.h

@@ -5,7 +5,7 @@
 
 #include <string>
 
-#include "core/hle/kernel/k_page_table.h"
+#include "core/hle/kernel/k_process_page_table.h"
 #include "core/hle/kernel/k_typed_address.h"
 #include "core/hle/kernel/slab_helpers.h"
 #include "core/hle/result.h"
@@ -31,23 +31,23 @@ public:
     Result Attach(Svc::DeviceName device_name);
     Result Detach(Svc::DeviceName device_name);
 
-    Result MapByForce(KPageTable* page_table, KProcessAddress process_address, size_t size,
+    Result MapByForce(KProcessPageTable* page_table, KProcessAddress process_address, size_t size,
                       u64 device_address, u32 option) {
         R_RETURN(this->Map(page_table, process_address, size, device_address, option, false));
     }
 
-    Result MapAligned(KPageTable* page_table, KProcessAddress process_address, size_t size,
+    Result MapAligned(KProcessPageTable* page_table, KProcessAddress process_address, size_t size,
                       u64 device_address, u32 option) {
         R_RETURN(this->Map(page_table, process_address, size, device_address, option, true));
     }
 
-    Result Unmap(KPageTable* page_table, KProcessAddress process_address, size_t size,
+    Result Unmap(KProcessPageTable* page_table, KProcessAddress process_address, size_t size,
                  u64 device_address);
 
     static void Initialize();
 
 private:
-    Result Map(KPageTable* page_table, KProcessAddress process_address, size_t size,
+    Result Map(KProcessPageTable* page_table, KProcessAddress process_address, size_t size,
                u64 device_address, u32 option, bool is_aligned);
 
 private:

src/core/hle/kernel/k_memory_layout.h

@@ -394,6 +394,14 @@ private:
         return region.GetEndAddress();
     }
 
+public:
+    static const KMemoryRegion* Find(const KMemoryLayout& layout, KVirtualAddress address) {
+        return Find(address, layout.GetVirtualMemoryRegionTree());
+    }
+    static const KMemoryRegion* Find(const KMemoryLayout& layout, KPhysicalAddress address) {
+        return Find(address, layout.GetPhysicalMemoryRegionTree());
+    }
+
 private:
     u64 m_linear_phys_to_virt_diff{};
     u64 m_linear_virt_to_phys_diff{};

src/core/hle/kernel/k_memory_manager.cpp

@@ -456,8 +456,7 @@ size_t KMemoryManager::Impl::Initialize(KPhysicalAddress address, size_t size,
 }
 
 void KMemoryManager::Impl::InitializeOptimizedMemory(KernelCore& kernel) {
-    auto optimize_pa =
+    auto optimize_pa = KPageTable::GetHeapPhysicalAddress(kernel, m_management_region);
-        KPageTable::GetHeapPhysicalAddress(kernel.MemoryLayout(), m_management_region);
     auto* optimize_map = kernel.System().DeviceMemory().GetPointer<u64>(optimize_pa);
 
     std::memset(optimize_map, 0, CalculateOptimizedProcessOverheadSize(m_heap.GetSize()));
@@ -465,8 +464,7 @@ void KMemoryManager::Impl::InitializeOptimizedMemory(KernelCore& kernel) {
 
 void KMemoryManager::Impl::TrackUnoptimizedAllocation(KernelCore& kernel, KPhysicalAddress block,
                                                       size_t num_pages) {
-    auto optimize_pa =
+    auto optimize_pa = KPageTable::GetHeapPhysicalAddress(kernel, m_management_region);
-        KPageTable::GetHeapPhysicalAddress(kernel.MemoryLayout(), m_management_region);
     auto* optimize_map = kernel.System().DeviceMemory().GetPointer<u64>(optimize_pa);
 
     // Get the range we're tracking.
@@ -485,8 +483,7 @@ void KMemoryManager::Impl::TrackUnoptimizedAllocation(KernelCore& kernel, KPhysi
 
 void KMemoryManager::Impl::TrackOptimizedAllocation(KernelCore& kernel, KPhysicalAddress block,
                                                     size_t num_pages) {
-    auto optimize_pa =
+    auto optimize_pa = KPageTable::GetHeapPhysicalAddress(kernel, m_management_region);
-        KPageTable::GetHeapPhysicalAddress(kernel.MemoryLayout(), m_management_region);
     auto* optimize_map = kernel.System().DeviceMemory().GetPointer<u64>(optimize_pa);
 
     // Get the range we're tracking.
@@ -506,8 +503,7 @@ void KMemoryManager::Impl::TrackOptimizedAllocation(KernelCore& kernel, KPhysica
 bool KMemoryManager::Impl::ProcessOptimizedAllocation(KernelCore& kernel, KPhysicalAddress block,
                                                       size_t num_pages, u8 fill_pattern) {
     auto& device_memory = kernel.System().DeviceMemory();
-    auto optimize_pa =
+    auto optimize_pa = KPageTable::GetHeapPhysicalAddress(kernel, m_management_region);
-        KPageTable::GetHeapPhysicalAddress(kernel.MemoryLayout(), m_management_region);
     auto* optimize_map = device_memory.GetPointer<u64>(optimize_pa);
 
     // We want to return whether any pages were newly allocated.

src/core/hle/kernel/k_page_table.h

@@ -3,548 +3,14 @@
 
 #pragma once
 
-#include <memory>
+#include "core/hle/kernel/k_page_table_base.h"
-
-#include "common/common_funcs.h"
-#include "common/page_table.h"
-#include "core/file_sys/program_metadata.h"
-#include "core/hle/kernel/k_dynamic_resource_manager.h"
-#include "core/hle/kernel/k_light_lock.h"
-#include "core/hle/kernel/k_memory_block.h"
-#include "core/hle/kernel/k_memory_block_manager.h"
-#include "core/hle/kernel/k_memory_layout.h"
-#include "core/hle/kernel/k_memory_manager.h"
-#include "core/hle/kernel/k_typed_address.h"
-#include "core/hle/result.h"
-#include "core/memory.h"
-
-namespace Core {
-class System;
-}
 
 namespace Kernel {
 
-enum class DisableMergeAttribute : u8 {
+class KPageTable final : public KPageTableBase {
-    None = (0U << 0),
-    DisableHead = (1U << 0),
-    DisableHeadAndBody = (1U << 1),
-    EnableHeadAndBody = (1U << 2),
-    DisableTail = (1U << 3),
-    EnableTail = (1U << 4),
-    EnableAndMergeHeadBodyTail = (1U << 5),
-    EnableHeadBodyTail = EnableHeadAndBody | EnableTail,
-    DisableHeadBodyTail = DisableHeadAndBody | DisableTail,
-};
-
-struct KPageProperties {
-    KMemoryPermission perm;
-    bool io;
-    bool uncached;
-    DisableMergeAttribute disable_merge_attributes;
-};
-static_assert(std::is_trivial_v<KPageProperties>);
-static_assert(sizeof(KPageProperties) == sizeof(u32));
-
-class KBlockInfoManager;
-class KMemoryBlockManager;
-class KResourceLimit;
-class KSystemResource;
-
-class KPageTable final {
-protected:
-    struct PageLinkedList;
-
 public:
-    enum class ICacheInvalidationStrategy : u32 { InvalidateRange, InvalidateAll };
+    explicit KPageTable(KernelCore& kernel) : KPageTableBase(kernel) {}
-
+    ~KPageTable() = default;
-    YUZU_NON_COPYABLE(KPageTable);
-    YUZU_NON_MOVEABLE(KPageTable);
-
-    explicit KPageTable(Core::System& system_);
-    ~KPageTable();
-
-    Result InitializeForProcess(Svc::CreateProcessFlag as_type, bool enable_aslr,
-                                bool enable_das_merge, bool from_back, KMemoryManager::Pool pool,
-                                KProcessAddress code_addr, size_t code_size,
-                                KSystemResource* system_resource, KResourceLimit* resource_limit,
-                                Core::Memory::Memory& memory);
-
-    void Finalize();
-
-    Result MapProcessCode(KProcessAddress addr, size_t pages_count, KMemoryState state,
-                          KMemoryPermission perm);
-    Result MapCodeMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
-    Result UnmapCodeMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size,
-                           ICacheInvalidationStrategy icache_invalidation_strategy);
-    Result UnmapProcessMemory(KProcessAddress dst_addr, size_t size, KPageTable& src_page_table,
-                              KProcessAddress src_addr);
-    Result MapPhysicalMemory(KProcessAddress addr, size_t size);
-    Result UnmapPhysicalMemory(KProcessAddress addr, size_t size);
-    Result MapMemory(KProcessAddress dst_addr, KProcessAddress src_addr, size_t size);
-    Result UnmapMemory(KProcessAddress dst_addr, KProcessAddress src_addr, size_t size);
-    Result SetProcessMemoryPermission(KProcessAddress addr, size_t size,
-                                      Svc::MemoryPermission svc_perm);
-    KMemoryInfo QueryInfo(KProcessAddress addr);
-    Result SetMemoryPermission(KProcessAddress addr, size_t size, Svc::MemoryPermission perm);
-    Result SetMemoryAttribute(KProcessAddress addr, size_t size, u32 mask, u32 attr);
-    Result SetMaxHeapSize(size_t size);
-    Result SetHeapSize(u64* out, size_t size);
-    Result LockForMapDeviceAddressSpace(bool* out_is_io, KProcessAddress address, size_t size,
-                                        KMemoryPermission perm, bool is_aligned, bool check_heap);
-    Result LockForUnmapDeviceAddressSpace(KProcessAddress address, size_t size, bool check_heap);
-
-    Result UnlockForDeviceAddressSpace(KProcessAddress addr, size_t size);
-
-    Result LockForIpcUserBuffer(KPhysicalAddress* out, KProcessAddress address, size_t size);
-    Result UnlockForIpcUserBuffer(KProcessAddress address, size_t size);
-
-    Result SetupForIpc(KProcessAddress* out_dst_addr, size_t size, KProcessAddress src_addr,
-                       KPageTable& src_page_table, KMemoryPermission test_perm,
-                       KMemoryState dst_state, bool send);
-    Result CleanupForIpcServer(KProcessAddress address, size_t size, KMemoryState dst_state);
-    Result CleanupForIpcClient(KProcessAddress address, size_t size, KMemoryState dst_state);
-
-    Result LockForTransferMemory(KPageGroup* out, KProcessAddress address, size_t size,
-                                 KMemoryPermission perm);
-    Result UnlockForTransferMemory(KProcessAddress address, size_t size, const KPageGroup& pg);
-    Result LockForCodeMemory(KPageGroup* out, KProcessAddress addr, size_t size);
-    Result UnlockForCodeMemory(KProcessAddress addr, size_t size, const KPageGroup& pg);
-    Result MakeAndOpenPageGroup(KPageGroup* out, KProcessAddress address, size_t num_pages,
-                                KMemoryState state_mask, KMemoryState state,
-                                KMemoryPermission perm_mask, KMemoryPermission perm,
-                                KMemoryAttribute attr_mask, KMemoryAttribute attr);
-
-    Common::PageTable& PageTableImpl() {
-        return *m_page_table_impl;
-    }
-
-    const Common::PageTable& PageTableImpl() const {
-        return *m_page_table_impl;
-    }
-
-    KBlockInfoManager* GetBlockInfoManager() {
-        return m_block_info_manager;
-    }
-
-    Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
-                    KPhysicalAddress phys_addr, KProcessAddress region_start,
-                    size_t region_num_pages, KMemoryState state, KMemoryPermission perm) {
-        R_RETURN(this->MapPages(out_addr, num_pages, alignment, phys_addr, true, region_start,
-                                region_num_pages, state, perm));
-    }
-
-    Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
-                    KPhysicalAddress phys_addr, KMemoryState state, KMemoryPermission perm) {
-        R_RETURN(this->MapPages(out_addr, num_pages, alignment, phys_addr, true,
-                                this->GetRegionAddress(state),
-                                this->GetRegionSize(state) / PageSize, state, perm));
-    }
-
-    Result MapPages(KProcessAddress* out_addr, size_t num_pages, KMemoryState state,
-                    KMemoryPermission perm) {
-        R_RETURN(this->MapPages(out_addr, num_pages, PageSize, 0, false,
-                                this->GetRegionAddress(state),
-                                this->GetRegionSize(state) / PageSize, state, perm));
-    }
-
-    Result MapPages(KProcessAddress address, size_t num_pages, KMemoryState state,
-                    KMemoryPermission perm);
-    Result UnmapPages(KProcessAddress address, size_t num_pages, KMemoryState state);
-
-    Result MapPageGroup(KProcessAddress* out_addr, const KPageGroup& pg,
-                        KProcessAddress region_start, size_t region_num_pages, KMemoryState state,
-                        KMemoryPermission perm);
-    Result MapPageGroup(KProcessAddress address, const KPageGroup& pg, KMemoryState state,
-                        KMemoryPermission perm);
-    Result UnmapPageGroup(KProcessAddress address, const KPageGroup& pg, KMemoryState state);
-    void RemapPageGroup(PageLinkedList* page_list, KProcessAddress address, size_t size,
-                        const KPageGroup& pg);
-
-    KProcessAddress GetRegionAddress(Svc::MemoryState state) const;
-    size_t GetRegionSize(Svc::MemoryState state) const;
-    bool CanContain(KProcessAddress addr, size_t size, Svc::MemoryState state) const;
-
-    KProcessAddress GetRegionAddress(KMemoryState state) const {
-        return this->GetRegionAddress(static_cast<Svc::MemoryState>(state & KMemoryState::Mask));
-    }
-    size_t GetRegionSize(KMemoryState state) const {
-        return this->GetRegionSize(static_cast<Svc::MemoryState>(state & KMemoryState::Mask));
-    }
-    bool CanContain(KProcessAddress addr, size_t size, KMemoryState state) const {
-        return this->CanContain(addr, size,
-                                static_cast<Svc::MemoryState>(state & KMemoryState::Mask));
-    }
-
-protected:
-    struct PageLinkedList {
-    private:
-        struct Node {
-            Node* m_next;
-            std::array<u8, PageSize - sizeof(Node*)> m_buffer;
-        };
-
-    public:
-        constexpr PageLinkedList() = default;
-
-        void Push(Node* n) {
-            ASSERT(Common::IsAligned(reinterpret_cast<uintptr_t>(n), PageSize));
-            n->m_next = m_root;
-            m_root = n;
-        }
-
-        void Push(Core::Memory::Memory& memory, KVirtualAddress addr) {
-            this->Push(memory.GetPointer<Node>(GetInteger(addr)));
-        }
-
-        Node* Peek() const {
-            return m_root;
-        }
-
-        Node* Pop() {
-            Node* const r = m_root;
-
-            m_root = r->m_next;
-            r->m_next = nullptr;
-
-            return r;
-        }
-
-    private:
-        Node* m_root{};
-    };
-    static_assert(std::is_trivially_destructible<PageLinkedList>::value);
-
-private:
-    enum class OperationType : u32 {
-        Map = 0,
-        MapGroup = 1,
-        MapFirstGroup = 2,
-        Unmap = 3,
-        ChangePermissions = 4,
-        ChangePermissionsAndRefresh = 5,
-        ChangePermissionsAndRefreshAndFlush = 6,
-        Separate = 7,
-    };
-
-    static constexpr KMemoryAttribute DefaultMemoryIgnoreAttr =
-        KMemoryAttribute::IpcLocked | KMemoryAttribute::DeviceShared;
-
-    Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
-                    KPhysicalAddress phys_addr, bool is_pa_valid, KProcessAddress region_start,
-                    size_t region_num_pages, KMemoryState state, KMemoryPermission perm);
-    bool IsRegionContiguous(KProcessAddress addr, u64 size) const;
-    void AddRegionToPages(KProcessAddress start, size_t num_pages, KPageGroup& page_linked_list);
-    KMemoryInfo QueryInfoImpl(KProcessAddress addr);
-    KProcessAddress AllocateVirtualMemory(KProcessAddress start, size_t region_num_pages,
-                                          u64 needed_num_pages, size_t align);
-    Result Operate(KProcessAddress addr, size_t num_pages, const KPageGroup& page_group,
-                   OperationType operation);
-    Result Operate(KProcessAddress addr, size_t num_pages, KMemoryPermission perm,
-                   OperationType operation, KPhysicalAddress map_addr = 0);
-    void FinalizeUpdate(PageLinkedList* page_list);
-
-    KProcessAddress FindFreeArea(KProcessAddress region_start, size_t region_num_pages,
-                                 size_t num_pages, size_t alignment, size_t offset,
-                                 size_t guard_pages);
-
-    Result CheckMemoryStateContiguous(size_t* out_blocks_needed, KProcessAddress addr, size_t size,
-                                      KMemoryState state_mask, KMemoryState state,
-                                      KMemoryPermission perm_mask, KMemoryPermission perm,
-                                      KMemoryAttribute attr_mask, KMemoryAttribute attr) const;
-    Result CheckMemoryStateContiguous(KProcessAddress addr, size_t size, KMemoryState state_mask,
-                                      KMemoryState state, KMemoryPermission perm_mask,
-                                      KMemoryPermission perm, KMemoryAttribute attr_mask,
-                                      KMemoryAttribute attr) const {
-        R_RETURN(this->CheckMemoryStateContiguous(nullptr, addr, size, state_mask, state, perm_mask,
-                                                  perm, attr_mask, attr));
-    }
-
-    Result CheckMemoryState(const KMemoryInfo& info, KMemoryState state_mask, KMemoryState state,
-                            KMemoryPermission perm_mask, KMemoryPermission perm,
-                            KMemoryAttribute attr_mask, KMemoryAttribute attr) const;
-    Result CheckMemoryState(KMemoryState* out_state, KMemoryPermission* out_perm,
-                            KMemoryAttribute* out_attr, size_t* out_blocks_needed,
-                            KMemoryBlockManager::const_iterator it, KProcessAddress last_addr,
-                            KMemoryState state_mask, KMemoryState state,
-                            KMemoryPermission perm_mask, KMemoryPermission perm,
-                            KMemoryAttribute attr_mask, KMemoryAttribute attr,
-                            KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const;
-    Result CheckMemoryState(KMemoryState* out_state, KMemoryPermission* out_perm,
-                            KMemoryAttribute* out_attr, size_t* out_blocks_needed,
-                            KProcessAddress addr, size_t size, KMemoryState state_mask,
-                            KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm,
-                            KMemoryAttribute attr_mask, KMemoryAttribute attr,
-                            KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const;
-    Result CheckMemoryState(size_t* out_blocks_needed, KProcessAddress addr, size_t size,
-                            KMemoryState state_mask, KMemoryState state,
-                            KMemoryPermission perm_mask, KMemoryPermission perm,
-                            KMemoryAttribute attr_mask, KMemoryAttribute attr,
-                            KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const {
-        R_RETURN(CheckMemoryState(nullptr, nullptr, nullptr, out_blocks_needed, addr, size,
-                                  state_mask, state, perm_mask, perm, attr_mask, attr,
-                                  ignore_attr));
-    }
-    Result CheckMemoryState(KProcessAddress addr, size_t size, KMemoryState state_mask,
-                            KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm,
-                            KMemoryAttribute attr_mask, KMemoryAttribute attr,
-                            KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const {
-        R_RETURN(this->CheckMemoryState(nullptr, addr, size, state_mask, state, perm_mask, perm,
-                                        attr_mask, attr, ignore_attr));
-    }
-
-    Result LockMemoryAndOpen(KPageGroup* out_pg, KPhysicalAddress* out_KPhysicalAddress,
-                             KProcessAddress addr, size_t size, KMemoryState state_mask,
-                             KMemoryState state, KMemoryPermission perm_mask,
-                             KMemoryPermission perm, KMemoryAttribute attr_mask,
-                             KMemoryAttribute attr, KMemoryPermission new_perm,
-                             KMemoryAttribute lock_attr);
-    Result UnlockMemory(KProcessAddress addr, size_t size, KMemoryState state_mask,
-                        KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm,
-                        KMemoryAttribute attr_mask, KMemoryAttribute attr,
-                        KMemoryPermission new_perm, KMemoryAttribute lock_attr,
-                        const KPageGroup* pg);
-
-    Result MakePageGroup(KPageGroup& pg, KProcessAddress addr, size_t num_pages);
-    bool IsValidPageGroup(const KPageGroup& pg, KProcessAddress addr, size_t num_pages);
-
-    bool IsLockedByCurrentThread() const {
-        return m_general_lock.IsLockedByCurrentThread();
-    }
-
-    bool IsHeapPhysicalAddress(const KMemoryLayout& layout, KPhysicalAddress phys_addr) {
-        ASSERT(this->IsLockedByCurrentThread());
-
-        return layout.IsHeapPhysicalAddress(m_cached_physical_heap_region, phys_addr);
-    }
-
-    bool GetPhysicalAddressLocked(KPhysicalAddress* out, KProcessAddress virt_addr) const {
-        ASSERT(this->IsLockedByCurrentThread());
-
-        *out = GetPhysicalAddr(virt_addr);
-
-        return *out != 0;
-    }
-
-    Result SetupForIpcClient(PageLinkedList* page_list, size_t* out_blocks_needed,
-                             KProcessAddress address, size_t size, KMemoryPermission test_perm,
-                             KMemoryState dst_state);
-    Result SetupForIpcServer(KProcessAddress* out_addr, size_t size, KProcessAddress src_addr,
-                             KMemoryPermission test_perm, KMemoryState dst_state,
-                             KPageTable& src_page_table, bool send);
-    void CleanupForIpcClientOnServerSetupFailure(PageLinkedList* page_list, KProcessAddress address,
-                                                 size_t size, KMemoryPermission prot_perm);
-
-    Result AllocateAndMapPagesImpl(PageLinkedList* page_list, KProcessAddress address,
-                                   size_t num_pages, KMemoryPermission perm);
-    Result MapPageGroupImpl(PageLinkedList* page_list, KProcessAddress address,
-                            const KPageGroup& pg, const KPageProperties properties, bool reuse_ll);
-
-    mutable KLightLock m_general_lock;
-    mutable KLightLock m_map_physical_memory_lock;
-
-public:
-    constexpr KProcessAddress GetAddressSpaceStart() const {
-        return m_address_space_start;
-    }
-    constexpr KProcessAddress GetAddressSpaceEnd() const {
-        return m_address_space_end;
-    }
-    constexpr size_t GetAddressSpaceSize() const {
-        return m_address_space_end - m_address_space_start;
-    }
-    constexpr KProcessAddress GetHeapRegionStart() const {
-        return m_heap_region_start;
-    }
-    constexpr KProcessAddress GetHeapRegionEnd() const {
-        return m_heap_region_end;
-    }
-    constexpr size_t GetHeapRegionSize() const {
-        return m_heap_region_end - m_heap_region_start;
-    }
-    constexpr KProcessAddress GetAliasRegionStart() const {
-        return m_alias_region_start;
-    }
-    constexpr KProcessAddress GetAliasRegionEnd() const {
-        return m_alias_region_end;
-    }
-    constexpr size_t GetAliasRegionSize() const {
-        return m_alias_region_end - m_alias_region_start;
-    }
-    constexpr KProcessAddress GetStackRegionStart() const {
-        return m_stack_region_start;
-    }
-    constexpr KProcessAddress GetStackRegionEnd() const {
-        return m_stack_region_end;
-    }
-    constexpr size_t GetStackRegionSize() const {
-        return m_stack_region_end - m_stack_region_start;
-    }
-    constexpr KProcessAddress GetKernelMapRegionStart() const {
-        return m_kernel_map_region_start;
-    }
-    constexpr KProcessAddress GetKernelMapRegionEnd() const {
-        return m_kernel_map_region_end;
-    }
-    constexpr KProcessAddress GetCodeRegionStart() const {
-        return m_code_region_start;
-    }
-    constexpr KProcessAddress GetCodeRegionEnd() const {
-        return m_code_region_end;
-    }
-    constexpr KProcessAddress GetAliasCodeRegionStart() const {
-        return m_alias_code_region_start;
-    }
-    constexpr KProcessAddress GetAliasCodeRegionEnd() const {
-        return m_alias_code_region_end;
-    }
-    constexpr size_t GetAliasCodeRegionSize() const {
-        return m_alias_code_region_end - m_alias_code_region_start;
-    }
-    size_t GetNormalMemorySize() const {
-        KScopedLightLock lk(m_general_lock);
-        return GetHeapSize() + m_mapped_physical_memory_size;
-    }
-    constexpr size_t GetAddressSpaceWidth() const {
-        return m_address_space_width;
-    }
-    constexpr size_t GetHeapSize() const {
-        return m_current_heap_end - m_heap_region_start;
-    }
-    constexpr size_t GetNumGuardPages() const {
-        return IsKernel() ? 1 : 4;
-    }
-    KPhysicalAddress GetPhysicalAddr(KProcessAddress addr) const {
-        const auto backing_addr = m_page_table_impl->backing_addr[addr >> PageBits];
-        ASSERT(backing_addr);
-        return backing_addr + GetInteger(addr);
-    }
-    constexpr bool Contains(KProcessAddress addr) const {
-        return m_address_space_start <= addr && addr <= m_address_space_end - 1;
-    }
-    constexpr bool Contains(KProcessAddress addr, size_t size) const {
-        return m_address_space_start <= addr && addr < addr + size &&
-               addr + size - 1 <= m_address_space_end - 1;
-    }
-    constexpr bool IsInAliasRegion(KProcessAddress addr, size_t size) const {
-        return this->Contains(addr, size) && m_alias_region_start <= addr &&
-               addr + size - 1 <= m_alias_region_end - 1;
-    }
-    constexpr bool IsInHeapRegion(KProcessAddress addr, size_t size) const {
-        return this->Contains(addr, size) && m_heap_region_start <= addr &&
-               addr + size - 1 <= m_heap_region_end - 1;
-    }
-
-public:
-    static KVirtualAddress GetLinearMappedVirtualAddress(const KMemoryLayout& layout,
-                                                         KPhysicalAddress addr) {
-        return layout.GetLinearVirtualAddress(addr);
-    }
-
-    static KPhysicalAddress GetLinearMappedPhysicalAddress(const KMemoryLayout& layout,
-                                                           KVirtualAddress addr) {
-        return layout.GetLinearPhysicalAddress(addr);
-    }
-
-    static KVirtualAddress GetHeapVirtualAddress(const KMemoryLayout& layout,
-                                                 KPhysicalAddress addr) {
-        return GetLinearMappedVirtualAddress(layout, addr);
-    }
-
-    static KPhysicalAddress GetHeapPhysicalAddress(const KMemoryLayout& layout,
-                                                   KVirtualAddress addr) {
-        return GetLinearMappedPhysicalAddress(layout, addr);
-    }
-
-    static KVirtualAddress GetPageTableVirtualAddress(const KMemoryLayout& layout,
-                                                      KPhysicalAddress addr) {
-        return GetLinearMappedVirtualAddress(layout, addr);
-    }
-
-    static KPhysicalAddress GetPageTablePhysicalAddress(const KMemoryLayout& layout,
-                                                        KVirtualAddress addr) {
-        return GetLinearMappedPhysicalAddress(layout, addr);
-    }
-
-private:
-    constexpr bool IsKernel() const {
-        return m_is_kernel;
-    }
-    constexpr bool IsAslrEnabled() const {
-        return m_enable_aslr;
-    }
-
-    constexpr bool ContainsPages(KProcessAddress addr, size_t num_pages) const {
-        return (m_address_space_start <= addr) &&
-               (num_pages <= (m_address_space_end - m_address_space_start) / PageSize) &&
-               (addr + num_pages * PageSize - 1 <= m_address_space_end - 1);
-    }
-
-private:
-    class KScopedPageTableUpdater {
-    private:
-        KPageTable* m_pt{};
-        PageLinkedList m_ll;
-
-    public:
-        explicit KScopedPageTableUpdater(KPageTable* pt) : m_pt(pt) {}
-        explicit KScopedPageTableUpdater(KPageTable& pt) : KScopedPageTableUpdater(&pt) {}
-        ~KScopedPageTableUpdater() {
-            m_pt->FinalizeUpdate(this->GetPageList());
-        }
-
-        PageLinkedList* GetPageList() {
-            return std::addressof(m_ll);
-        }
-    };
-
-private:
-    KProcessAddress m_address_space_start{};
-    KProcessAddress m_address_space_end{};
-    KProcessAddress m_heap_region_start{};
-    KProcessAddress m_heap_region_end{};
-    KProcessAddress m_current_heap_end{};
-    KProcessAddress m_alias_region_start{};
-    KProcessAddress m_alias_region_end{};
-    KProcessAddress m_stack_region_start{};
-    KProcessAddress m_stack_region_end{};
-    KProcessAddress m_kernel_map_region_start{};
-    KProcessAddress m_kernel_map_region_end{};
-    KProcessAddress m_code_region_start{};
-    KProcessAddress m_code_region_end{};
-    KProcessAddress m_alias_code_region_start{};
-    KProcessAddress m_alias_code_region_end{};
-
-    size_t m_max_heap_size{};
-    size_t m_mapped_physical_memory_size{};
-    size_t m_mapped_unsafe_physical_memory{};
-    size_t m_mapped_insecure_memory{};
-    size_t m_mapped_ipc_server_memory{};
-    size_t m_address_space_width{};
-
-    KMemoryBlockManager m_memory_block_manager;
-    u32 m_allocate_option{};
-
-    bool m_is_kernel{};
-    bool m_enable_aslr{};
-    bool m_enable_device_address_space_merge{};
-
-    KMemoryBlockSlabManager* m_memory_block_slab_manager{};
-    KBlockInfoManager* m_block_info_manager{};
-    KResourceLimit* m_resource_limit{};
-
-    u32 m_heap_fill_value{};
-    u32 m_ipc_fill_value{};
-    u32 m_stack_fill_value{};
-    const KMemoryRegion* m_cached_physical_heap_region{};
-
-    KMemoryManager::Pool m_memory_pool{KMemoryManager::Pool::Application};
-    KMemoryManager::Direction m_allocation_option{KMemoryManager::Direction::FromFront};
-
-    std::unique_ptr<Common::PageTable> m_page_table_impl;
-
-    Core::System& m_system;
-    KernelCore& m_kernel;
-    Core::Memory::Memory* m_memory{};
 };
 
 } // namespace Kernel

src/core/hle/kernel/k_page_table_base.h

@@ -0,0 +1,760 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+
+#include "common/common_funcs.h"
+#include "common/page_table.h"
+#include "core/core.h"
+#include "core/hle/kernel/k_dynamic_resource_manager.h"
+#include "core/hle/kernel/k_light_lock.h"
+#include "core/hle/kernel/k_memory_block.h"
+#include "core/hle/kernel/k_memory_block_manager.h"
+#include "core/hle/kernel/k_memory_layout.h"
+#include "core/hle/kernel/k_memory_manager.h"
+#include "core/hle/kernel/k_typed_address.h"
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/result.h"
+#include "core/memory.h"
+
+namespace Kernel {
+
+enum class DisableMergeAttribute : u8 {
+    None = (0U << 0),
+
+    DisableHead = (1U << 0),
+    DisableHeadAndBody = (1U << 1),
+    EnableHeadAndBody = (1U << 2),
+    DisableTail = (1U << 3),
+    EnableTail = (1U << 4),
+    EnableAndMergeHeadBodyTail = (1U << 5),
+
+    EnableHeadBodyTail = EnableHeadAndBody | EnableTail,
+    DisableHeadBodyTail = DisableHeadAndBody | DisableTail,
+};
+DECLARE_ENUM_FLAG_OPERATORS(DisableMergeAttribute);
+
+struct KPageProperties {
+    KMemoryPermission perm;
+    bool io;
+    bool uncached;
+    DisableMergeAttribute disable_merge_attributes;
+};
+static_assert(std::is_trivial_v<KPageProperties>);
+static_assert(sizeof(KPageProperties) == sizeof(u32));
+
+class KResourceLimit;
+class KSystemResource;
+
+class KPageTableBase {
+    YUZU_NON_COPYABLE(KPageTableBase);
+    YUZU_NON_MOVEABLE(KPageTableBase);
+
+public:
+    using TraversalEntry = Common::PageTable::TraversalEntry;
+    using TraversalContext = Common::PageTable::TraversalContext;
+
+    class MemoryRange {
+    private:
+        KernelCore& m_kernel;
+        KPhysicalAddress m_address;
+        size_t m_size;
+        bool m_heap;
+
+    public:
+        explicit MemoryRange(KernelCore& kernel)
+            : m_kernel(kernel), m_address(0), m_size(0), m_heap(false) {}
+
+        void Set(KPhysicalAddress address, size_t size, bool heap) {
+            m_address = address;
+            m_size = size;
+            m_heap = heap;
+        }
+
+        KPhysicalAddress GetAddress() const {
+            return m_address;
+        }
+        size_t GetSize() const {
+            return m_size;
+        }
+        bool IsHeap() const {
+            return m_heap;
+        }
+
+        void Open();
+        void Close();
+    };
+
+protected:
+    enum MemoryFillValue : u8 {
+        MemoryFillValue_Zero = 0,
+        MemoryFillValue_Stack = 'X',
+        MemoryFillValue_Ipc = 'Y',
+        MemoryFillValue_Heap = 'Z',
+    };
+
+    enum class OperationType {
+        Map = 0,
+        MapGroup = 1,
+        MapFirstGroup = 2,
+        Unmap = 3,
+        ChangePermissions = 4,
+        ChangePermissionsAndRefresh = 5,
+        ChangePermissionsAndRefreshAndFlush = 6,
+        Separate = 7,
+    };
+
+    static constexpr size_t MaxPhysicalMapAlignment = 1_GiB;
+    static constexpr size_t RegionAlignment = 2_MiB;
+    static_assert(RegionAlignment == KernelAslrAlignment);
+
+    struct PageLinkedList {
+    private:
+        struct Node {
+            Node* m_next;
+            std::array<u8, PageSize - sizeof(Node*)> m_buffer;
+        };
+        static_assert(std::is_trivial_v<Node>);
+
+    private:
+        Node* m_root{};
+
+    public:
+        constexpr PageLinkedList() : m_root(nullptr) {}
+
+        void Push(Node* n) {
+            ASSERT(Common::IsAligned(reinterpret_cast<uintptr_t>(n), PageSize));
+            n->m_next = m_root;
+            m_root = n;
+        }
+
+        Node* Peek() const {
+            return m_root;
+        }
+
+        Node* Pop() {
+            Node* const r = m_root;
+
+            m_root = r->m_next;
+            r->m_next = nullptr;
+
+            return r;
+        }
+    };
+    static_assert(std::is_trivially_destructible_v<PageLinkedList>);
+
+    static constexpr auto DefaultMemoryIgnoreAttr =
+        KMemoryAttribute::IpcLocked | KMemoryAttribute::DeviceShared;
+
+    static constexpr size_t GetAddressSpaceWidth(Svc::CreateProcessFlag as_type) {
+        switch (static_cast<Svc::CreateProcessFlag>(as_type &
+                                                    Svc::CreateProcessFlag::AddressSpaceMask)) {
+        case Svc::CreateProcessFlag::AddressSpace64Bit:
+            return 39;
+        case Svc::CreateProcessFlag::AddressSpace64BitDeprecated:
+            return 36;
+        case Svc::CreateProcessFlag::AddressSpace32Bit:
+        case Svc::CreateProcessFlag::AddressSpace32BitWithoutAlias:
+            return 32;
+        default:
+            UNREACHABLE();
+        }
+    }
+
+private:
+    class KScopedPageTableUpdater {
+    private:
+        KPageTableBase* m_pt;
+        PageLinkedList m_ll;
+
+    public:
+        explicit KScopedPageTableUpdater(KPageTableBase* pt) : m_pt(pt), m_ll() {}
+        explicit KScopedPageTableUpdater(KPageTableBase& pt)
+            : KScopedPageTableUpdater(std::addressof(pt)) {}
+        ~KScopedPageTableUpdater() {
+            m_pt->FinalizeUpdate(this->GetPageList());
+        }
+
+        PageLinkedList* GetPageList() {
+            return std::addressof(m_ll);
+        }
+    };
+
+private:
+    KernelCore& m_kernel;
+    Core::System& m_system;
+    KProcessAddress m_address_space_start{};
+    KProcessAddress m_address_space_end{};
+    KProcessAddress m_heap_region_start{};
+    KProcessAddress m_heap_region_end{};
+    KProcessAddress m_current_heap_end{};
+    KProcessAddress m_alias_region_start{};
+    KProcessAddress m_alias_region_end{};
+    KProcessAddress m_stack_region_start{};
+    KProcessAddress m_stack_region_end{};
+    KProcessAddress m_kernel_map_region_start{};
+    KProcessAddress m_kernel_map_region_end{};
+    KProcessAddress m_alias_code_region_start{};
+    KProcessAddress m_alias_code_region_end{};
+    KProcessAddress m_code_region_start{};
+    KProcessAddress m_code_region_end{};
+    size_t m_max_heap_size{};
+    size_t m_mapped_physical_memory_size{};
+    size_t m_mapped_unsafe_physical_memory{};
+    size_t m_mapped_insecure_memory{};
+    size_t m_mapped_ipc_server_memory{};
+    mutable KLightLock m_general_lock;
+    mutable KLightLock m_map_physical_memory_lock;
+    KLightLock m_device_map_lock;
+    std::unique_ptr<Common::PageTable> m_impl{};
+    Core::Memory::Memory* m_memory{};
+    KMemoryBlockManager m_memory_block_manager{};
+    u32 m_allocate_option{};
+    u32 m_address_space_width{};
+    bool m_is_kernel{};
+    bool m_enable_aslr{};
+    bool m_enable_device_address_space_merge{};
+    KMemoryBlockSlabManager* m_memory_block_slab_manager{};
+    KBlockInfoManager* m_block_info_manager{};
+    KResourceLimit* m_resource_limit{};
+    const KMemoryRegion* m_cached_physical_linear_region{};
+    const KMemoryRegion* m_cached_physical_heap_region{};
+    MemoryFillValue m_heap_fill_value{};
+    MemoryFillValue m_ipc_fill_value{};
+    MemoryFillValue m_stack_fill_value{};
+
+public:
+    explicit KPageTableBase(KernelCore& kernel);
+    ~KPageTableBase();
+
+    Result InitializeForKernel(bool is_64_bit, KVirtualAddress start, KVirtualAddress end,
+                               Core::Memory::Memory& memory);
+    Result InitializeForProcess(Svc::CreateProcessFlag as_type, bool enable_aslr,
+                                bool enable_device_address_space_merge, bool from_back,
+                                KMemoryManager::Pool pool, KProcessAddress code_address,
+                                size_t code_size, KSystemResource* system_resource,
+                                KResourceLimit* resource_limit, Core::Memory::Memory& memory,
+                                KProcessAddress aslr_space_start);
+
+    void Finalize();
+
+    bool IsKernel() const {
+        return m_is_kernel;
+    }
+    bool IsAslrEnabled() const {
+        return m_enable_aslr;
+    }
+
+    bool Contains(KProcessAddress addr) const {
+        return m_address_space_start <= addr && addr <= m_address_space_end - 1;
+    }
+
+    bool Contains(KProcessAddress addr, size_t size) const {
+        return m_address_space_start <= addr && addr < addr + size &&
+               addr + size - 1 <= m_address_space_end - 1;
+    }
+
+    bool IsInAliasRegion(KProcessAddress addr, size_t size) const {
+        return this->Contains(addr, size) && m_alias_region_start <= addr &&
+               addr + size - 1 <= m_alias_region_end - 1;
+    }
+
+    bool IsInHeapRegion(KProcessAddress addr, size_t size) const {
+        return this->Contains(addr, size) && m_heap_region_start <= addr &&
+               addr + size - 1 <= m_heap_region_end - 1;
+    }
+
+    bool IsInUnsafeAliasRegion(KProcessAddress addr, size_t size) const {
+        // Even though Unsafe physical memory is KMemoryState_Normal, it must be mapped inside the
+        // alias code region.
+        return this->CanContain(addr, size, Svc::MemoryState::AliasCode);
+    }
+
+    KScopedLightLock AcquireDeviceMapLock() {
+        return KScopedLightLock(m_device_map_lock);
+    }
+
+    KProcessAddress GetRegionAddress(Svc::MemoryState state) const;
+    size_t GetRegionSize(Svc::MemoryState state) const;
+    bool CanContain(KProcessAddress addr, size_t size, Svc::MemoryState state) const;
+
+    KProcessAddress GetRegionAddress(KMemoryState state) const {
+        return this->GetRegionAddress(static_cast<Svc::MemoryState>(state & KMemoryState::Mask));
+    }
+    size_t GetRegionSize(KMemoryState state) const {
+        return this->GetRegionSize(static_cast<Svc::MemoryState>(state & KMemoryState::Mask));
+    }
+    bool CanContain(KProcessAddress addr, size_t size, KMemoryState state) const {
+        return this->CanContain(addr, size,
+                                static_cast<Svc::MemoryState>(state & KMemoryState::Mask));
+    }
+
+public:
+    Core::Memory::Memory& GetMemory() {
+        return *m_memory;
+    }
+
+    Core::Memory::Memory& GetMemory() const {
+        return *m_memory;
+    }
+
+    Common::PageTable& GetImpl() {
+        return *m_impl;
+    }
+
+    Common::PageTable& GetImpl() const {
+        return *m_impl;
+    }
+
+    size_t GetNumGuardPages() const {
+        return this->IsKernel() ? 1 : 4;
+    }
+
+protected:
+    // NOTE: These three functions (Operate, Operate, FinalizeUpdate) are virtual functions
+    // in Nintendo's kernel. We devirtualize them, since KPageTable is the only derived
+    // class, and this avoids unnecessary virtual function calls.
+    Result Operate(PageLinkedList* page_list, KProcessAddress virt_addr, size_t num_pages,
+                   KPhysicalAddress phys_addr, bool is_pa_valid, const KPageProperties properties,
+                   OperationType operation, bool reuse_ll);
+    Result Operate(PageLinkedList* page_list, KProcessAddress virt_addr, size_t num_pages,
+                   const KPageGroup& page_group, const KPageProperties properties,
+                   OperationType operation, bool reuse_ll);
+    void FinalizeUpdate(PageLinkedList* page_list);
+
+    bool IsLockedByCurrentThread() const {
+        return m_general_lock.IsLockedByCurrentThread();
+    }
+
+    bool IsLinearMappedPhysicalAddress(KPhysicalAddress phys_addr) {
+        ASSERT(this->IsLockedByCurrentThread());
+
+        return m_kernel.MemoryLayout().IsLinearMappedPhysicalAddress(
+            m_cached_physical_linear_region, phys_addr);
+    }
+
+    bool IsLinearMappedPhysicalAddress(KPhysicalAddress phys_addr, size_t size) {
+        ASSERT(this->IsLockedByCurrentThread());
+
+        return m_kernel.MemoryLayout().IsLinearMappedPhysicalAddress(
+            m_cached_physical_linear_region, phys_addr, size);
+    }
+
+    bool IsHeapPhysicalAddress(KPhysicalAddress phys_addr) {
+        ASSERT(this->IsLockedByCurrentThread());
+
+        return m_kernel.MemoryLayout().IsHeapPhysicalAddress(m_cached_physical_heap_region,
+                                                             phys_addr);
+    }
+
+    bool IsHeapPhysicalAddress(KPhysicalAddress phys_addr, size_t size) {
+        ASSERT(this->IsLockedByCurrentThread());
+
+        return m_kernel.MemoryLayout().IsHeapPhysicalAddress(m_cached_physical_heap_region,
+                                                             phys_addr, size);
+    }
+
+    bool IsHeapPhysicalAddressForFinalize(KPhysicalAddress phys_addr) {
+        ASSERT(!this->IsLockedByCurrentThread());
+
+        return m_kernel.MemoryLayout().IsHeapPhysicalAddress(m_cached_physical_heap_region,
+                                                             phys_addr);
+    }
+
+    bool ContainsPages(KProcessAddress addr, size_t num_pages) const {
+        return (m_address_space_start <= addr) &&
+               (num_pages <= (m_address_space_end - m_address_space_start) / PageSize) &&
+               (addr + num_pages * PageSize - 1 <= m_address_space_end - 1);
+    }
+
+private:
+    KProcessAddress FindFreeArea(KProcessAddress region_start, size_t region_num_pages,
+                                 size_t num_pages, size_t alignment, size_t offset,
+                                 size_t guard_pages) const;
+
+    Result CheckMemoryStateContiguous(size_t* out_blocks_needed, KProcessAddress addr, size_t size,
+                                      KMemoryState state_mask, KMemoryState state,
+                                      KMemoryPermission perm_mask, KMemoryPermission perm,
+                                      KMemoryAttribute attr_mask, KMemoryAttribute attr) const;
+    Result CheckMemoryStateContiguous(KProcessAddress addr, size_t size, KMemoryState state_mask,
+                                      KMemoryState state, KMemoryPermission perm_mask,
+                                      KMemoryPermission perm, KMemoryAttribute attr_mask,
+                                      KMemoryAttribute attr) const {
+        R_RETURN(this->CheckMemoryStateContiguous(nullptr, addr, size, state_mask, state, perm_mask,
+                                                  perm, attr_mask, attr));
+    }
+
+    Result CheckMemoryState(const KMemoryInfo& info, KMemoryState state_mask, KMemoryState state,
+                            KMemoryPermission perm_mask, KMemoryPermission perm,
+                            KMemoryAttribute attr_mask, KMemoryAttribute attr) const;
+    Result CheckMemoryState(KMemoryState* out_state, KMemoryPermission* out_perm,
+                            KMemoryAttribute* out_attr, size_t* out_blocks_needed,
+                            KMemoryBlockManager::const_iterator it, KProcessAddress last_addr,
+                            KMemoryState state_mask, KMemoryState state,
+                            KMemoryPermission perm_mask, KMemoryPermission perm,
+                            KMemoryAttribute attr_mask, KMemoryAttribute attr,
+                            KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const;
+    Result CheckMemoryState(KMemoryState* out_state, KMemoryPermission* out_perm,
+                            KMemoryAttribute* out_attr, size_t* out_blocks_needed,
+                            KProcessAddress addr, size_t size, KMemoryState state_mask,
+                            KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm,
+                            KMemoryAttribute attr_mask, KMemoryAttribute attr,
+                            KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const;
+    Result CheckMemoryState(size_t* out_blocks_needed, KProcessAddress addr, size_t size,
+                            KMemoryState state_mask, KMemoryState state,
+                            KMemoryPermission perm_mask, KMemoryPermission perm,
+                            KMemoryAttribute attr_mask, KMemoryAttribute attr,
+                            KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const {
+        R_RETURN(this->CheckMemoryState(nullptr, nullptr, nullptr, out_blocks_needed, addr, size,
+                                        state_mask, state, perm_mask, perm, attr_mask, attr,
+                                        ignore_attr));
+    }
+    Result CheckMemoryState(KProcessAddress addr, size_t size, KMemoryState state_mask,
+                            KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm,
+                            KMemoryAttribute attr_mask, KMemoryAttribute attr,
+                            KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const {
+        R_RETURN(this->CheckMemoryState(nullptr, addr, size, state_mask, state, perm_mask, perm,
+                                        attr_mask, attr, ignore_attr));
+    }
+
+    Result LockMemoryAndOpen(KPageGroup* out_pg, KPhysicalAddress* out_paddr, KProcessAddress addr,
+                             size_t size, KMemoryState state_mask, KMemoryState state,
+                             KMemoryPermission perm_mask, KMemoryPermission perm,
+                             KMemoryAttribute attr_mask, KMemoryAttribute attr,
+                             KMemoryPermission new_perm, KMemoryAttribute lock_attr);
+    Result UnlockMemory(KProcessAddress addr, size_t size, KMemoryState state_mask,
+                        KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm,
+                        KMemoryAttribute attr_mask, KMemoryAttribute attr,
+                        KMemoryPermission new_perm, KMemoryAttribute lock_attr,
+                        const KPageGroup* pg);
+
+    Result QueryInfoImpl(KMemoryInfo* out_info, Svc::PageInfo* out_page,
+                         KProcessAddress address) const;
+
+    Result QueryMappingImpl(KProcessAddress* out, KPhysicalAddress address, size_t size,
+                            Svc::MemoryState state) const;
+
+    Result AllocateAndMapPagesImpl(PageLinkedList* page_list, KProcessAddress address,
+                                   size_t num_pages, KMemoryPermission perm);
+    Result MapPageGroupImpl(PageLinkedList* page_list, KProcessAddress address,
+                            const KPageGroup& pg, const KPageProperties properties, bool reuse_ll);
+
+    void RemapPageGroup(PageLinkedList* page_list, KProcessAddress address, size_t size,
+                        const KPageGroup& pg);
+
+    Result MakePageGroup(KPageGroup& pg, KProcessAddress addr, size_t num_pages);
+    bool IsValidPageGroup(const KPageGroup& pg, KProcessAddress addr, size_t num_pages);
+
+    Result GetContiguousMemoryRangeWithState(MemoryRange* out, KProcessAddress address, size_t size,
+                                             KMemoryState state_mask, KMemoryState state,
+                                             KMemoryPermission perm_mask, KMemoryPermission perm,
+                                             KMemoryAttribute attr_mask, KMemoryAttribute attr);
+
+    Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
+                    KPhysicalAddress phys_addr, bool is_pa_valid, KProcessAddress region_start,
+                    size_t region_num_pages, KMemoryState state, KMemoryPermission perm);
+
+    Result MapIoImpl(KProcessAddress* out, PageLinkedList* page_list, KPhysicalAddress phys_addr,
+                     size_t size, KMemoryState state, KMemoryPermission perm);
+    Result ReadIoMemoryImpl(KProcessAddress dst_addr, KPhysicalAddress phys_addr, size_t size,
+                            KMemoryState state);
+    Result WriteIoMemoryImpl(KPhysicalAddress phys_addr, KProcessAddress src_addr, size_t size,
+                             KMemoryState state);
+
+    Result SetupForIpcClient(PageLinkedList* page_list, size_t* out_blocks_needed,
+                             KProcessAddress address, size_t size, KMemoryPermission test_perm,
+                             KMemoryState dst_state);
+    Result SetupForIpcServer(KProcessAddress* out_addr, size_t size, KProcessAddress src_addr,
+                             KMemoryPermission test_perm, KMemoryState dst_state,
+                             KPageTableBase& src_page_table, bool send);
+    void CleanupForIpcClientOnServerSetupFailure(PageLinkedList* page_list, KProcessAddress address,
+                                                 size_t size, KMemoryPermission prot_perm);
+
+    size_t GetSize(KMemoryState state) const;
+
+    bool GetPhysicalAddressLocked(KPhysicalAddress* out, KProcessAddress virt_addr) const {
+        // Validate pre-conditions.
+        ASSERT(this->IsLockedByCurrentThread());
+
+        return this->GetImpl().GetPhysicalAddress(out, virt_addr);
+    }
+
+public:
+    bool GetPhysicalAddress(KPhysicalAddress* out, KProcessAddress virt_addr) const {
+        // Validate pre-conditions.
+        ASSERT(!this->IsLockedByCurrentThread());
+
+        // Acquire exclusive access to the table while doing address translation.
+        KScopedLightLock lk(m_general_lock);
+
+        return this->GetPhysicalAddressLocked(out, virt_addr);
+    }
+
+    KBlockInfoManager* GetBlockInfoManager() const {
+        return m_block_info_manager;
+    }
+
+    Result SetMemoryPermission(KProcessAddress addr, size_t size, Svc::MemoryPermission perm);
+    Result SetProcessMemoryPermission(KProcessAddress addr, size_t size,
+                                      Svc::MemoryPermission perm);
+    Result SetMemoryAttribute(KProcessAddress addr, size_t size, KMemoryAttribute mask,
+                              KMemoryAttribute attr);
+    Result SetHeapSize(KProcessAddress* out, size_t size);
+    Result SetMaxHeapSize(size_t size);
+    Result QueryInfo(KMemoryInfo* out_info, Svc::PageInfo* out_page_info,
+                     KProcessAddress addr) const;
+    Result QueryPhysicalAddress(Svc::lp64::PhysicalMemoryInfo* out, KProcessAddress address) const;
+    Result QueryStaticMapping(KProcessAddress* out, KPhysicalAddress address, size_t size) const {
+        R_RETURN(this->QueryMappingImpl(out, address, size, Svc::MemoryState::Static));
+    }
+    Result QueryIoMapping(KProcessAddress* out, KPhysicalAddress address, size_t size) const {
+        R_RETURN(this->QueryMappingImpl(out, address, size, Svc::MemoryState::Io));
+    }
+    Result MapMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
+    Result UnmapMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
+    Result MapCodeMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
+    Result UnmapCodeMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
+    Result MapIo(KPhysicalAddress phys_addr, size_t size, KMemoryPermission perm);
+    Result MapIoRegion(KProcessAddress dst_address, KPhysicalAddress phys_addr, size_t size,
+                       Svc::MemoryMapping mapping, Svc::MemoryPermission perm);
+    Result UnmapIoRegion(KProcessAddress dst_address, KPhysicalAddress phys_addr, size_t size,
+                         Svc::MemoryMapping mapping);
+    Result MapStatic(KPhysicalAddress phys_addr, size_t size, KMemoryPermission perm);
+    Result MapRegion(KMemoryRegionType region_type, KMemoryPermission perm);
+    Result MapInsecureMemory(KProcessAddress address, size_t size);
+    Result UnmapInsecureMemory(KProcessAddress address, size_t size);
+
+    Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
+                    KPhysicalAddress phys_addr, KProcessAddress region_start,
+                    size_t region_num_pages, KMemoryState state, KMemoryPermission perm) {
+        R_RETURN(this->MapPages(out_addr, num_pages, alignment, phys_addr, true, region_start,
+                                region_num_pages, state, perm));
+    }
+
+    Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
+                    KPhysicalAddress phys_addr, KMemoryState state, KMemoryPermission perm) {
+        R_RETURN(this->MapPages(out_addr, num_pages, alignment, phys_addr, true,
+                                this->GetRegionAddress(state),
+                                this->GetRegionSize(state) / PageSize, state, perm));
+    }
+
+    Result MapPages(KProcessAddress* out_addr, size_t num_pages, KMemoryState state,
+                    KMemoryPermission perm) {
+        R_RETURN(this->MapPages(out_addr, num_pages, PageSize, 0, false,
+                                this->GetRegionAddress(state),
+                                this->GetRegionSize(state) / PageSize, state, perm));
+    }
+
+    Result MapPages(KProcessAddress address, size_t num_pages, KMemoryState state,
+                    KMemoryPermission perm);
+    Result UnmapPages(KProcessAddress address, size_t num_pages, KMemoryState state);
+
+    Result MapPageGroup(KProcessAddress* out_addr, const KPageGroup& pg,
+                        KProcessAddress region_start, size_t region_num_pages, KMemoryState state,
+                        KMemoryPermission perm);
+    Result MapPageGroup(KProcessAddress address, const KPageGroup& pg, KMemoryState state,
+                        KMemoryPermission perm);
+    Result UnmapPageGroup(KProcessAddress address, const KPageGroup& pg, KMemoryState state);
+
+    Result MakeAndOpenPageGroup(KPageGroup* out, KProcessAddress address, size_t num_pages,
+                                KMemoryState state_mask, KMemoryState state,
+                                KMemoryPermission perm_mask, KMemoryPermission perm,
+                                KMemoryAttribute attr_mask, KMemoryAttribute attr);
+
+    Result InvalidateProcessDataCache(KProcessAddress address, size_t size);
+    Result InvalidateCurrentProcessDataCache(KProcessAddress address, size_t size);
+
+    Result ReadDebugMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
+    Result ReadDebugIoMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size,
+                             KMemoryState state);
+
+    Result WriteDebugMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
+    Result WriteDebugIoMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size,
+                              KMemoryState state);
+
+    Result LockForMapDeviceAddressSpace(bool* out_is_io, KProcessAddress address, size_t size,
+                                        KMemoryPermission perm, bool is_aligned, bool check_heap);
+    Result LockForUnmapDeviceAddressSpace(KProcessAddress address, size_t size, bool check_heap);
+
+    Result UnlockForDeviceAddressSpace(KProcessAddress address, size_t size);
+    Result UnlockForDeviceAddressSpacePartialMap(KProcessAddress address, size_t size);
+
+    Result OpenMemoryRangeForMapDeviceAddressSpace(KPageTableBase::MemoryRange* out,
+                                                   KProcessAddress address, size_t size,
+                                                   KMemoryPermission perm, bool is_aligned);
+    Result OpenMemoryRangeForUnmapDeviceAddressSpace(MemoryRange* out, KProcessAddress address,
+                                                     size_t size);
+
+    Result LockForIpcUserBuffer(KPhysicalAddress* out, KProcessAddress address, size_t size);
+    Result UnlockForIpcUserBuffer(KProcessAddress address, size_t size);
+
+    Result LockForTransferMemory(KPageGroup* out, KProcessAddress address, size_t size,
+                                 KMemoryPermission perm);
+    Result UnlockForTransferMemory(KProcessAddress address, size_t size, const KPageGroup& pg);
+    Result LockForCodeMemory(KPageGroup* out, KProcessAddress address, size_t size);
+    Result UnlockForCodeMemory(KProcessAddress address, size_t size, const KPageGroup& pg);
+
+    Result OpenMemoryRangeForProcessCacheOperation(MemoryRange* out, KProcessAddress address,
+                                                   size_t size);
+
+    Result CopyMemoryFromLinearToUser(KProcessAddress dst_addr, size_t size,
+                                      KProcessAddress src_addr, KMemoryState src_state_mask,
+                                      KMemoryState src_state, KMemoryPermission src_test_perm,
+                                      KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr);
+    Result CopyMemoryFromLinearToKernel(void* buffer, size_t size, KProcessAddress src_addr,
+                                        KMemoryState src_state_mask, KMemoryState src_state,
+                                        KMemoryPermission src_test_perm,
+                                        KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr);
+    Result CopyMemoryFromUserToLinear(KProcessAddress dst_addr, size_t size,
+                                      KMemoryState dst_state_mask, KMemoryState dst_state,
+                                      KMemoryPermission dst_test_perm,
+                                      KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr,
+                                      KProcessAddress src_addr);
+    Result CopyMemoryFromKernelToLinear(KProcessAddress dst_addr, size_t size,
+                                        KMemoryState dst_state_mask, KMemoryState dst_state,
+                                        KMemoryPermission dst_test_perm,
+                                        KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr,
+                                        void* buffer);
+    Result CopyMemoryFromHeapToHeap(KPageTableBase& dst_page_table, KProcessAddress dst_addr,
+                                    size_t size, KMemoryState dst_state_mask,
+                                    KMemoryState dst_state, KMemoryPermission dst_test_perm,
+                                    KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr,
+                                    KProcessAddress src_addr, KMemoryState src_state_mask,
+                                    KMemoryState src_state, KMemoryPermission src_test_perm,
+                                    KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr);
+    Result CopyMemoryFromHeapToHeapWithoutCheckDestination(
+        KPageTableBase& dst_page_table, KProcessAddress dst_addr, size_t size,
+        KMemoryState dst_state_mask, KMemoryState dst_state, KMemoryPermission dst_test_perm,
+        KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr, KProcessAddress src_addr,
+        KMemoryState src_state_mask, KMemoryState src_state, KMemoryPermission src_test_perm,
+        KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr);
+
+    Result SetupForIpc(KProcessAddress* out_dst_addr, size_t size, KProcessAddress src_addr,
+                       KPageTableBase& src_page_table, KMemoryPermission test_perm,
+                       KMemoryState dst_state, bool send);
+    Result CleanupForIpcServer(KProcessAddress address, size_t size, KMemoryState dst_state);
+    Result CleanupForIpcClient(KProcessAddress address, size_t size, KMemoryState dst_state);
+
+    Result MapPhysicalMemory(KProcessAddress address, size_t size);
+    Result UnmapPhysicalMemory(KProcessAddress address, size_t size);
+
+    Result MapPhysicalMemoryUnsafe(KProcessAddress address, size_t size);
+    Result UnmapPhysicalMemoryUnsafe(KProcessAddress address, size_t size);
+
+    Result UnmapProcessMemory(KProcessAddress dst_address, size_t size, KPageTableBase& src_pt,
+                              KProcessAddress src_address);
+
+public:
+    KProcessAddress GetAddressSpaceStart() const {
+        return m_address_space_start;
+    }
+    KProcessAddress GetHeapRegionStart() const {
+        return m_heap_region_start;
+    }
+    KProcessAddress GetAliasRegionStart() const {
+        return m_alias_region_start;
+    }
+    KProcessAddress GetStackRegionStart() const {
+        return m_stack_region_start;
+    }
+    KProcessAddress GetKernelMapRegionStart() const {
+        return m_kernel_map_region_start;
+    }
+    KProcessAddress GetCodeRegionStart() const {
+        return m_code_region_start;
+    }
+    KProcessAddress GetAliasCodeRegionStart() const {
+        return m_alias_code_region_start;
+    }
+
+    size_t GetAddressSpaceSize() const {
+        return m_address_space_end - m_address_space_start;
+    }
+    size_t GetHeapRegionSize() const {
+        return m_heap_region_end - m_heap_region_start;
+    }
+    size_t GetAliasRegionSize() const {
+        return m_alias_region_end - m_alias_region_start;
+    }
+    size_t GetStackRegionSize() const {
+        return m_stack_region_end - m_stack_region_start;
+    }
+    size_t GetKernelMapRegionSize() const {
+        return m_kernel_map_region_end - m_kernel_map_region_start;
+    }
+    size_t GetCodeRegionSize() const {
+        return m_code_region_end - m_code_region_start;
+    }
+    size_t GetAliasCodeRegionSize() const {
+        return m_alias_code_region_end - m_alias_code_region_start;
+    }
+
+    size_t GetNormalMemorySize() const {
+        // Lock the table.
+        KScopedLightLock lk(m_general_lock);
+
+        return (m_current_heap_end - m_heap_region_start) + m_mapped_physical_memory_size;
+    }
+
+    size_t GetCodeSize() const;
+    size_t GetCodeDataSize() const;
+    size_t GetAliasCodeSize() const;
+    size_t GetAliasCodeDataSize() const;
+
+    u32 GetAllocateOption() const {
+        return m_allocate_option;
+    }
+
+    u32 GetAddressSpaceWidth() const {
+        return m_address_space_width;
+    }
+
+public:
+    // Linear mapped
+    static u8* GetLinearMappedVirtualPointer(KernelCore& kernel, KPhysicalAddress addr) {
+        return kernel.System().DeviceMemory().GetPointer<u8>(addr);
+    }
+
+    static KPhysicalAddress GetLinearMappedPhysicalAddress(KernelCore& kernel,
+                                                           KVirtualAddress addr) {
+        return kernel.MemoryLayout().GetLinearPhysicalAddress(addr);
+    }
+
+    static KVirtualAddress GetLinearMappedVirtualAddress(KernelCore& kernel,
+                                                         KPhysicalAddress addr) {
+        return kernel.MemoryLayout().GetLinearVirtualAddress(addr);
+    }
+
+    // Heap
+    static u8* GetHeapVirtualPointer(KernelCore& kernel, KPhysicalAddress addr) {
+        return kernel.System().DeviceMemory().GetPointer<u8>(addr);
+    }
+
+    static KPhysicalAddress GetHeapPhysicalAddress(KernelCore& kernel, KVirtualAddress addr) {
+        return GetLinearMappedPhysicalAddress(kernel, addr);
+    }
+
+    static KVirtualAddress GetHeapVirtualAddress(KernelCore& kernel, KPhysicalAddress addr) {
+        return GetLinearMappedVirtualAddress(kernel, addr);
+    }
+
+    // Member heap
+    u8* GetHeapVirtualPointer(KPhysicalAddress addr) {
+        return GetHeapVirtualPointer(m_kernel, addr);
+    }
+
+    KPhysicalAddress GetHeapPhysicalAddress(KVirtualAddress addr) {
+        return GetHeapPhysicalAddress(m_kernel, addr);
+    }
+
+    KVirtualAddress GetHeapVirtualAddress(KPhysicalAddress addr) {
+        return GetHeapVirtualAddress(m_kernel, addr);
+    }
+
+    // TODO: GetPageTableVirtualAddress
+    // TODO: GetPageTablePhysicalAddress
+};
+
+} // namespace Kernel

src/core/hle/kernel/k_process.cpp

@@ -298,9 +298,9 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params, const KPa
         const bool enable_aslr = True(params.flags & Svc::CreateProcessFlag::EnableAslr);
         const bool enable_das_merge =
             False(params.flags & Svc::CreateProcessFlag::DisableDeviceAddressSpaceMerge);
-        R_TRY(m_page_table.InitializeForProcess(
+        R_TRY(m_page_table.Initialize(as_type, enable_aslr, enable_das_merge, !enable_aslr, pool,
-            as_type, enable_aslr, enable_das_merge, !enable_aslr, pool, params.code_address,
+                                      params.code_address, params.code_num_pages * PageSize,
-            params.code_num_pages * PageSize, m_system_resource, res_limit, this->GetMemory()));
+                                      m_system_resource, res_limit, this->GetMemory(), 0));
     }
     ON_RESULT_FAILURE_2 {
         m_page_table.Finalize();
@@ -332,7 +332,7 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params, const KPa
 
 Result KProcess::Initialize(const Svc::CreateProcessParameter& params,
                             std::span<const u32> user_caps, KResourceLimit* res_limit,
-                            KMemoryManager::Pool pool) {
+                            KMemoryManager::Pool pool, KProcessAddress aslr_space_start) {
     ASSERT(res_limit != nullptr);
 
     // Set members.
@@ -391,9 +391,9 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params,
         const bool enable_aslr = True(params.flags & Svc::CreateProcessFlag::EnableAslr);
         const bool enable_das_merge =
             False(params.flags & Svc::CreateProcessFlag::DisableDeviceAddressSpaceMerge);
-        R_TRY(m_page_table.InitializeForProcess(as_type, enable_aslr, enable_das_merge,
+        R_TRY(m_page_table.Initialize(as_type, enable_aslr, enable_das_merge, !enable_aslr, pool,
-                                                !enable_aslr, pool, params.code_address, code_size,
+                                      params.code_address, code_size, m_system_resource, res_limit,
-                                                m_system_resource, res_limit, this->GetMemory()));
+                                      this->GetMemory(), aslr_space_start));
     }
     ON_RESULT_FAILURE_2 {
         m_page_table.Finalize();
@@ -1122,13 +1122,13 @@ Result KProcess::GetThreadList(s32* out_num_threads, KProcessAddress out_thread_
 void KProcess::Switch(KProcess* cur_process, KProcess* next_process) {}
 
 KProcess::KProcess(KernelCore& kernel)
-    : KAutoObjectWithSlabHeapAndContainer(kernel), m_page_table{kernel.System()},
+    : KAutoObjectWithSlabHeapAndContainer(kernel), m_page_table{kernel}, m_state_lock{kernel},
-      m_state_lock{kernel}, m_list_lock{kernel}, m_cond_var{kernel.System()},
+      m_list_lock{kernel}, m_cond_var{kernel.System()}, m_address_arbiter{kernel.System()},
-      m_address_arbiter{kernel.System()}, m_handle_table{kernel} {}
+      m_handle_table{kernel} {}
 KProcess::~KProcess() = default;
 
 Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std::size_t code_size,
-                                  bool is_hbl) {
+                                  KProcessAddress aslr_space_start, bool is_hbl) {
     // Create a resource limit for the process.
     const auto physical_memory_size =
         m_kernel.MemoryManager().GetSize(Kernel::KMemoryManager::Pool::Application);
@@ -1179,7 +1179,7 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
         .name = {},
         .version = {},
         .program_id = metadata.GetTitleID(),
-        .code_address = code_address,
+        .code_address = code_address + GetInteger(aslr_space_start),
         .code_num_pages = static_cast<s32>(code_size / PageSize),
         .flags = flag,
         .reslimit = Svc::InvalidHandle,
@@ -1193,7 +1193,7 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
 
     // Initialize for application process.
     R_TRY(this->Initialize(params, metadata.GetKernelCapabilities(), res_limit,
-                           KMemoryManager::Pool::Application));
+                           KMemoryManager::Pool::Application, aslr_space_start));
 
     // Assign remaining properties.
     m_is_hbl = is_hbl;
@@ -1214,6 +1214,17 @@ void KProcess::LoadModule(CodeSet code_set, KProcessAddress base_addr) {
     ReprotectSegment(code_set.CodeSegment(), Svc::MemoryPermission::ReadExecute);
     ReprotectSegment(code_set.RODataSegment(), Svc::MemoryPermission::Read);
     ReprotectSegment(code_set.DataSegment(), Svc::MemoryPermission::ReadWrite);
+
+#ifdef ARCHITECTURE_arm64
+    if (Settings::IsNceEnabled()) {
+        auto& buffer = m_kernel.System().DeviceMemory().buffer;
+        const auto& code = code_set.CodeSegment();
+        const auto& patch = code_set.PatchSegment();
+        buffer.Protect(GetInteger(base_addr + code.addr), code.size, true, true, true);
+        buffer.Protect(GetInteger(base_addr + patch.addr), patch.size, true, true, true);
+        ReprotectSegment(code_set.PatchSegment(), Svc::MemoryPermission::None);
+    }
+#endif
 }
 
 bool KProcess::InsertWatchpoint(KProcessAddress addr, u64 size, DebugWatchpointType type) {

src/core/hle/kernel/k_process.h

@@ -5,13 +5,14 @@
 
 #include <map>
 
+#include "core/file_sys/program_metadata.h"
 #include "core/hle/kernel/code_set.h"
 #include "core/hle/kernel/k_address_arbiter.h"
 #include "core/hle/kernel/k_capabilities.h"
 #include "core/hle/kernel/k_condition_variable.h"
 #include "core/hle/kernel/k_handle_table.h"
-#include "core/hle/kernel/k_page_table.h"
 #include "core/hle/kernel/k_page_table_manager.h"
+#include "core/hle/kernel/k_process_page_table.h"
 #include "core/hle/kernel/k_system_resource.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/k_thread_local_page.h"
@@ -65,7 +66,7 @@ private:
     using TLPIterator = TLPTree::iterator;
 
 private:
-    KPageTable m_page_table;
+    KProcessPageTable m_page_table;
     std::atomic<size_t> m_used_kernel_memory_size{};
     TLPTree m_fully_used_tlp_tree{};
     TLPTree m_partially_used_tlp_tree{};
@@ -111,6 +112,7 @@ private:
     std::array<KThread*, Core::Hardware::NUM_CPU_CORES> m_pinned_threads{};
     std::array<DebugWatchpoint, Core::Hardware::NUM_WATCHPOINTS> m_watchpoints{};
     std::map<KProcessAddress, u64> m_debug_page_refcounts{};
+    std::unordered_map<u64, u64> m_post_handlers{};
     std::atomic<s64> m_cpu_time{};
     std::atomic<s64> m_num_process_switches{};
     std::atomic<s64> m_num_thread_switches{};
@@ -149,7 +151,8 @@ public:
                       std::span<const u32> caps, KResourceLimit* res_limit,
                       KMemoryManager::Pool pool, bool immortal);
     Result Initialize(const Svc::CreateProcessParameter& params, std::span<const u32> user_caps,
-                      KResourceLimit* res_limit, KMemoryManager::Pool pool);
+                      KResourceLimit* res_limit, KMemoryManager::Pool pool,
+                      KProcessAddress aslr_space_start);
     void Exit();
 
     const char* GetName() const {
@@ -254,9 +257,8 @@ public:
         return m_is_hbl;
     }
 
-    Kernel::KMemoryManager::Direction GetAllocateOption() const {
+    u32 GetAllocateOption() const {
-        // TODO: property of the KPageTableBase
+        return m_page_table.GetAllocateOption();
-        return KMemoryManager::Direction::FromFront;
     }
 
     ThreadList& GetThreadList() {
@@ -295,10 +297,10 @@ public:
         return m_list_lock;
     }
 
-    KPageTable& GetPageTable() {
+    KProcessPageTable& GetPageTable() {
         return m_page_table;
     }
-    const KPageTable& GetPageTable() const {
+    const KProcessPageTable& GetPageTable() const {
         return m_page_table;
     }
 
@@ -466,6 +468,10 @@ public:
 
     static void Switch(KProcess* cur_process, KProcess* next_process);
 
+    std::unordered_map<u64, u64>& GetPostHandlers() noexcept {
+        return m_post_handlers;
+    }
+
 public:
     // Attempts to insert a watchpoint into a free slot. Returns false if none are available.
     bool InsertWatchpoint(KProcessAddress addr, u64 size, DebugWatchpointType type);
@@ -479,7 +485,7 @@ public:
 
 public:
     Result LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std::size_t code_size,
-                            bool is_hbl);
+                            KProcessAddress aslr_space_start, bool is_hbl);
 
     void LoadModule(CodeSet code_set, KProcessAddress base_addr);
 

src/core/hle/kernel/k_process_page_table.h

@@ -0,0 +1,481 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/kernel/k_page_table.h"
+#include "core/hle/kernel/k_scoped_lock.h"
+#include "core/hle/kernel/svc_types.h"
+
+namespace Core {
+class ARM_Interface;
+}
+
+namespace Kernel {
+
+class KProcessPageTable {
+private:
+    KPageTable m_page_table;
+
+public:
+    KProcessPageTable(KernelCore& kernel) : m_page_table(kernel) {}
+
+    Result Initialize(Svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_das_merge,
+                      bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address,
+                      size_t code_size, KSystemResource* system_resource,
+                      KResourceLimit* resource_limit, Core::Memory::Memory& memory,
+                      KProcessAddress aslr_space_start) {
+        R_RETURN(m_page_table.InitializeForProcess(
+            as_type, enable_aslr, enable_das_merge, from_back, pool, code_address, code_size,
+            system_resource, resource_limit, memory, aslr_space_start));
+    }
+
+    void Finalize() {
+        m_page_table.Finalize();
+    }
+
+    Core::Memory::Memory& GetMemory() {
+        return m_page_table.GetMemory();
+    }
+
+    Core::Memory::Memory& GetMemory() const {
+        return m_page_table.GetMemory();
+    }
+
+    Common::PageTable& GetImpl() {
+        return m_page_table.GetImpl();
+    }
+
+    Common::PageTable& GetImpl() const {
+        return m_page_table.GetImpl();
+    }
+
+    size_t GetNumGuardPages() const {
+        return m_page_table.GetNumGuardPages();
+    }
+
+    KScopedLightLock AcquireDeviceMapLock() {
+        return m_page_table.AcquireDeviceMapLock();
+    }
+
+    Result SetMemoryPermission(KProcessAddress addr, size_t size, Svc::MemoryPermission perm) {
+        R_RETURN(m_page_table.SetMemoryPermission(addr, size, perm));
+    }
+
+    Result SetProcessMemoryPermission(KProcessAddress addr, size_t size,
+                                      Svc::MemoryPermission perm) {
+        R_RETURN(m_page_table.SetProcessMemoryPermission(addr, size, perm));
+    }
+
+    Result SetMemoryAttribute(KProcessAddress addr, size_t size, KMemoryAttribute mask,
+                              KMemoryAttribute attr) {
+        R_RETURN(m_page_table.SetMemoryAttribute(addr, size, mask, attr));
+    }
+
+    Result SetHeapSize(KProcessAddress* out, size_t size) {
+        R_RETURN(m_page_table.SetHeapSize(out, size));
+    }
+
+    Result SetMaxHeapSize(size_t size) {
+        R_RETURN(m_page_table.SetMaxHeapSize(size));
+    }
+
+    Result QueryInfo(KMemoryInfo* out_info, Svc::PageInfo* out_page_info,
+                     KProcessAddress addr) const {
+        R_RETURN(m_page_table.QueryInfo(out_info, out_page_info, addr));
+    }
+
+    Result QueryPhysicalAddress(Svc::lp64::PhysicalMemoryInfo* out, KProcessAddress address) {
+        R_RETURN(m_page_table.QueryPhysicalAddress(out, address));
+    }
+
+    Result QueryStaticMapping(KProcessAddress* out, KPhysicalAddress address, size_t size) {
+        R_RETURN(m_page_table.QueryStaticMapping(out, address, size));
+    }
+
+    Result QueryIoMapping(KProcessAddress* out, KPhysicalAddress address, size_t size) {
+        R_RETURN(m_page_table.QueryIoMapping(out, address, size));
+    }
+
+    Result MapMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size) {
+        R_RETURN(m_page_table.MapMemory(dst_address, src_address, size));
+    }
+
+    Result UnmapMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size) {
+        R_RETURN(m_page_table.UnmapMemory(dst_address, src_address, size));
+    }
+
+    Result MapCodeMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size) {
+        R_RETURN(m_page_table.MapCodeMemory(dst_address, src_address, size));
+    }
+
+    Result UnmapCodeMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size) {
+        R_RETURN(m_page_table.UnmapCodeMemory(dst_address, src_address, size));
+    }
+
+    Result MapIo(KPhysicalAddress phys_addr, size_t size, KMemoryPermission perm) {
+        R_RETURN(m_page_table.MapIo(phys_addr, size, perm));
+    }
+
+    Result MapIoRegion(KProcessAddress dst_address, KPhysicalAddress phys_addr, size_t size,
+                       Svc::MemoryMapping mapping, Svc::MemoryPermission perm) {
+        R_RETURN(m_page_table.MapIoRegion(dst_address, phys_addr, size, mapping, perm));
+    }
+
+    Result UnmapIoRegion(KProcessAddress dst_address, KPhysicalAddress phys_addr, size_t size,
+                         Svc::MemoryMapping mapping) {
+        R_RETURN(m_page_table.UnmapIoRegion(dst_address, phys_addr, size, mapping));
+    }
+
+    Result MapStatic(KPhysicalAddress phys_addr, size_t size, KMemoryPermission perm) {
+        R_RETURN(m_page_table.MapStatic(phys_addr, size, perm));
+    }
+
+    Result MapRegion(KMemoryRegionType region_type, KMemoryPermission perm) {
+        R_RETURN(m_page_table.MapRegion(region_type, perm));
+    }
+
+    Result MapInsecureMemory(KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.MapInsecureMemory(address, size));
+    }
+
+    Result UnmapInsecureMemory(KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.UnmapInsecureMemory(address, size));
+    }
+
+    Result MapPageGroup(KProcessAddress addr, const KPageGroup& pg, KMemoryState state,
+                        KMemoryPermission perm) {
+        R_RETURN(m_page_table.MapPageGroup(addr, pg, state, perm));
+    }
+
+    Result UnmapPageGroup(KProcessAddress address, const KPageGroup& pg, KMemoryState state) {
+        R_RETURN(m_page_table.UnmapPageGroup(address, pg, state));
+    }
+
+    Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
+                    KPhysicalAddress phys_addr, KMemoryState state, KMemoryPermission perm) {
+        R_RETURN(m_page_table.MapPages(out_addr, num_pages, alignment, phys_addr, state, perm));
+    }
+
+    Result MapPages(KProcessAddress* out_addr, size_t num_pages, KMemoryState state,
+                    KMemoryPermission perm) {
+        R_RETURN(m_page_table.MapPages(out_addr, num_pages, state, perm));
+    }
+
+    Result MapPages(KProcessAddress address, size_t num_pages, KMemoryState state,
+                    KMemoryPermission perm) {
+        R_RETURN(m_page_table.MapPages(address, num_pages, state, perm));
+    }
+
+    Result UnmapPages(KProcessAddress addr, size_t num_pages, KMemoryState state) {
+        R_RETURN(m_page_table.UnmapPages(addr, num_pages, state));
+    }
+
+    Result MakeAndOpenPageGroup(KPageGroup* out, KProcessAddress address, size_t num_pages,
+                                KMemoryState state_mask, KMemoryState state,
+                                KMemoryPermission perm_mask, KMemoryPermission perm,
+                                KMemoryAttribute attr_mask, KMemoryAttribute attr) {
+        R_RETURN(m_page_table.MakeAndOpenPageGroup(out, address, num_pages, state_mask, state,
+                                                   perm_mask, perm, attr_mask, attr));
+    }
+
+    Result InvalidateProcessDataCache(KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.InvalidateProcessDataCache(address, size));
+    }
+
+    Result ReadDebugMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size) {
+        R_RETURN(m_page_table.ReadDebugMemory(dst_address, src_address, size));
+    }
+
+    Result ReadDebugIoMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size,
+                             KMemoryState state) {
+        R_RETURN(m_page_table.ReadDebugIoMemory(dst_address, src_address, size, state));
+    }
+
+    Result WriteDebugMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size) {
+        R_RETURN(m_page_table.WriteDebugMemory(dst_address, src_address, size));
+    }
+
+    Result WriteDebugIoMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size,
+                              KMemoryState state) {
+        R_RETURN(m_page_table.WriteDebugIoMemory(dst_address, src_address, size, state));
+    }
+
+    Result LockForMapDeviceAddressSpace(bool* out_is_io, KProcessAddress address, size_t size,
+                                        KMemoryPermission perm, bool is_aligned, bool check_heap) {
+        R_RETURN(m_page_table.LockForMapDeviceAddressSpace(out_is_io, address, size, perm,
+                                                           is_aligned, check_heap));
+    }
+
+    Result LockForUnmapDeviceAddressSpace(KProcessAddress address, size_t size, bool check_heap) {
+        R_RETURN(m_page_table.LockForUnmapDeviceAddressSpace(address, size, check_heap));
+    }
+
+    Result UnlockForDeviceAddressSpace(KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.UnlockForDeviceAddressSpace(address, size));
+    }
+
+    Result UnlockForDeviceAddressSpacePartialMap(KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.UnlockForDeviceAddressSpacePartialMap(address, size));
+    }
+
+    Result OpenMemoryRangeForMapDeviceAddressSpace(KPageTableBase::MemoryRange* out,
+                                                   KProcessAddress address, size_t size,
+                                                   KMemoryPermission perm, bool is_aligned) {
+        R_RETURN(m_page_table.OpenMemoryRangeForMapDeviceAddressSpace(out, address, size, perm,
+                                                                      is_aligned));
+    }
+
+    Result OpenMemoryRangeForUnmapDeviceAddressSpace(KPageTableBase::MemoryRange* out,
+                                                     KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.OpenMemoryRangeForUnmapDeviceAddressSpace(out, address, size));
+    }
+
+    Result LockForIpcUserBuffer(KPhysicalAddress* out, KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.LockForIpcUserBuffer(out, address, size));
+    }
+
+    Result UnlockForIpcUserBuffer(KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.UnlockForIpcUserBuffer(address, size));
+    }
+
+    Result LockForTransferMemory(KPageGroup* out, KProcessAddress address, size_t size,
+                                 KMemoryPermission perm) {
+        R_RETURN(m_page_table.LockForTransferMemory(out, address, size, perm));
+    }
+
+    Result UnlockForTransferMemory(KProcessAddress address, size_t size, const KPageGroup& pg) {
+        R_RETURN(m_page_table.UnlockForTransferMemory(address, size, pg));
+    }
+
+    Result LockForCodeMemory(KPageGroup* out, KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.LockForCodeMemory(out, address, size));
+    }
+
+    Result UnlockForCodeMemory(KProcessAddress address, size_t size, const KPageGroup& pg) {
+        R_RETURN(m_page_table.UnlockForCodeMemory(address, size, pg));
+    }
+
+    Result OpenMemoryRangeForProcessCacheOperation(KPageTableBase::MemoryRange* out,
+                                                   KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.OpenMemoryRangeForProcessCacheOperation(out, address, size));
+    }
+
+    Result CopyMemoryFromLinearToUser(KProcessAddress dst_addr, size_t size,
+                                      KProcessAddress src_addr, KMemoryState src_state_mask,
+                                      KMemoryState src_state, KMemoryPermission src_test_perm,
+                                      KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr) {
+        R_RETURN(m_page_table.CopyMemoryFromLinearToUser(dst_addr, size, src_addr, src_state_mask,
+                                                         src_state, src_test_perm, src_attr_mask,
+                                                         src_attr));
+    }
+
+    Result CopyMemoryFromLinearToKernel(void* dst_addr, size_t size, KProcessAddress src_addr,
+                                        KMemoryState src_state_mask, KMemoryState src_state,
+                                        KMemoryPermission src_test_perm,
+                                        KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr) {
+        R_RETURN(m_page_table.CopyMemoryFromLinearToKernel(dst_addr, size, src_addr, src_state_mask,
+                                                           src_state, src_test_perm, src_attr_mask,
+                                                           src_attr));
+    }
+
+    Result CopyMemoryFromUserToLinear(KProcessAddress dst_addr, size_t size,
+                                      KMemoryState dst_state_mask, KMemoryState dst_state,
+                                      KMemoryPermission dst_test_perm,
+                                      KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr,
+                                      KProcessAddress src_addr) {
+        R_RETURN(m_page_table.CopyMemoryFromUserToLinear(dst_addr, size, dst_state_mask, dst_state,
+                                                         dst_test_perm, dst_attr_mask, dst_attr,
+                                                         src_addr));
+    }
+
+    Result CopyMemoryFromKernelToLinear(KProcessAddress dst_addr, size_t size,
+                                        KMemoryState dst_state_mask, KMemoryState dst_state,
+                                        KMemoryPermission dst_test_perm,
+                                        KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr,
+                                        void* src_addr) {
+        R_RETURN(m_page_table.CopyMemoryFromKernelToLinear(dst_addr, size, dst_state_mask,
+                                                           dst_state, dst_test_perm, dst_attr_mask,
+                                                           dst_attr, src_addr));
+    }
+
+    Result CopyMemoryFromHeapToHeap(KProcessPageTable& dst_page_table, KProcessAddress dst_addr,
+                                    size_t size, KMemoryState dst_state_mask,
+                                    KMemoryState dst_state, KMemoryPermission dst_test_perm,
+                                    KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr,
+                                    KProcessAddress src_addr, KMemoryState src_state_mask,
+                                    KMemoryState src_state, KMemoryPermission src_test_perm,
+                                    KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr) {
+        R_RETURN(m_page_table.CopyMemoryFromHeapToHeap(
+            dst_page_table.m_page_table, dst_addr, size, dst_state_mask, dst_state, dst_test_perm,
+            dst_attr_mask, dst_attr, src_addr, src_state_mask, src_state, src_test_perm,
+            src_attr_mask, src_attr));
+    }
+
+    Result CopyMemoryFromHeapToHeapWithoutCheckDestination(
+        KProcessPageTable& dst_page_table, KProcessAddress dst_addr, size_t size,
+        KMemoryState dst_state_mask, KMemoryState dst_state, KMemoryPermission dst_test_perm,
+        KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr, KProcessAddress src_addr,
+        KMemoryState src_state_mask, KMemoryState src_state, KMemoryPermission src_test_perm,
+        KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr) {
+        R_RETURN(m_page_table.CopyMemoryFromHeapToHeapWithoutCheckDestination(
+            dst_page_table.m_page_table, dst_addr, size, dst_state_mask, dst_state, dst_test_perm,
+            dst_attr_mask, dst_attr, src_addr, src_state_mask, src_state, src_test_perm,
+            src_attr_mask, src_attr));
+    }
+
+    Result SetupForIpc(KProcessAddress* out_dst_addr, size_t size, KProcessAddress src_addr,
+                       KProcessPageTable& src_page_table, KMemoryPermission test_perm,
+                       KMemoryState dst_state, bool send) {
+        R_RETURN(m_page_table.SetupForIpc(out_dst_addr, size, src_addr, src_page_table.m_page_table,
+                                          test_perm, dst_state, send));
+    }
+
+    Result CleanupForIpcServer(KProcessAddress address, size_t size, KMemoryState dst_state) {
+        R_RETURN(m_page_table.CleanupForIpcServer(address, size, dst_state));
+    }
+
+    Result CleanupForIpcClient(KProcessAddress address, size_t size, KMemoryState dst_state) {
+        R_RETURN(m_page_table.CleanupForIpcClient(address, size, dst_state));
+    }
+
+    Result MapPhysicalMemory(KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.MapPhysicalMemory(address, size));
+    }
+
+    Result UnmapPhysicalMemory(KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.UnmapPhysicalMemory(address, size));
+    }
+
+    Result MapPhysicalMemoryUnsafe(KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.MapPhysicalMemoryUnsafe(address, size));
+    }
+
+    Result UnmapPhysicalMemoryUnsafe(KProcessAddress address, size_t size) {
+        R_RETURN(m_page_table.UnmapPhysicalMemoryUnsafe(address, size));
+    }
+
+    Result UnmapProcessMemory(KProcessAddress dst_address, size_t size,
+                              KProcessPageTable& src_page_table, KProcessAddress src_address) {
+        R_RETURN(m_page_table.UnmapProcessMemory(dst_address, size, src_page_table.m_page_table,
+                                                 src_address));
+    }
+
+    bool GetPhysicalAddress(KPhysicalAddress* out, KProcessAddress address) {
+        return m_page_table.GetPhysicalAddress(out, address);
+    }
+
+    bool Contains(KProcessAddress addr, size_t size) const {
+        return m_page_table.Contains(addr, size);
+    }
+
+    bool IsInAliasRegion(KProcessAddress addr, size_t size) const {
+        return m_page_table.IsInAliasRegion(addr, size);
+    }
+    bool IsInHeapRegion(KProcessAddress addr, size_t size) const {
+        return m_page_table.IsInHeapRegion(addr, size);
+    }
+    bool IsInUnsafeAliasRegion(KProcessAddress addr, size_t size) const {
+        return m_page_table.IsInUnsafeAliasRegion(addr, size);
+    }
+
+    bool CanContain(KProcessAddress addr, size_t size, KMemoryState state) const {
+        return m_page_table.CanContain(addr, size, state);
+    }
+
+    KProcessAddress GetAddressSpaceStart() const {
+        return m_page_table.GetAddressSpaceStart();
+    }
+    KProcessAddress GetHeapRegionStart() const {
+        return m_page_table.GetHeapRegionStart();
+    }
+    KProcessAddress GetAliasRegionStart() const {
+        return m_page_table.GetAliasRegionStart();
+    }
+    KProcessAddress GetStackRegionStart() const {
+        return m_page_table.GetStackRegionStart();
+    }
+    KProcessAddress GetKernelMapRegionStart() const {
+        return m_page_table.GetKernelMapRegionStart();
+    }
+    KProcessAddress GetCodeRegionStart() const {
+        return m_page_table.GetCodeRegionStart();
+    }
+    KProcessAddress GetAliasCodeRegionStart() const {
+        return m_page_table.GetAliasCodeRegionStart();
+    }
+
+    size_t GetAddressSpaceSize() const {
+        return m_page_table.GetAddressSpaceSize();
+    }
+    size_t GetHeapRegionSize() const {
+        return m_page_table.GetHeapRegionSize();
+    }
+    size_t GetAliasRegionSize() const {
+        return m_page_table.GetAliasRegionSize();
+    }
+    size_t GetStackRegionSize() const {
+        return m_page_table.GetStackRegionSize();
+    }
+    size_t GetKernelMapRegionSize() const {
+        return m_page_table.GetKernelMapRegionSize();
+    }
+    size_t GetCodeRegionSize() const {
+        return m_page_table.GetCodeRegionSize();
+    }
+    size_t GetAliasCodeRegionSize() const {
+        return m_page_table.GetAliasCodeRegionSize();
+    }
+
+    size_t GetNormalMemorySize() const {
+        return m_page_table.GetNormalMemorySize();
+    }
+
+    size_t GetCodeSize() const {
+        return m_page_table.GetCodeSize();
+    }
+    size_t GetCodeDataSize() const {
+        return m_page_table.GetCodeDataSize();
+    }
+
+    size_t GetAliasCodeSize() const {
+        return m_page_table.GetAliasCodeSize();
+    }
+    size_t GetAliasCodeDataSize() const {
+        return m_page_table.GetAliasCodeDataSize();
+    }
+
+    u32 GetAllocateOption() const {
+        return m_page_table.GetAllocateOption();
+    }
+
+    u32 GetAddressSpaceWidth() const {
+        return m_page_table.GetAddressSpaceWidth();
+    }
+
+    KPhysicalAddress GetHeapPhysicalAddress(KVirtualAddress address) {
+        return m_page_table.GetHeapPhysicalAddress(address);
+    }
+
+    u8* GetHeapVirtualPointer(KPhysicalAddress address) {
+        return m_page_table.GetHeapVirtualPointer(address);
+    }
+
+    KVirtualAddress GetHeapVirtualAddress(KPhysicalAddress address) {
+        return m_page_table.GetHeapVirtualAddress(address);
+    }
+
+    KBlockInfoManager* GetBlockInfoManager() {
+        return m_page_table.GetBlockInfoManager();
+    }
+
+    KPageTable& GetBasePageTable() {
+        return m_page_table;
+    }
+
+    const KPageTable& GetBasePageTable() const {
+        return m_page_table;
+    }
+};
+
+} // namespace Kernel

src/core/hle/kernel/k_server_session.cpp

@@ -383,7 +383,7 @@ Result KServerSession::SendReply(bool is_hle) {
         if (event != nullptr) {
             // // Get the client process/page table.
             // KProcess *client_process             = client_thread->GetOwnerProcess();
-            // KPageTable *client_page_table        = std::addressof(client_process->PageTable());
+            // KProcessPageTable *client_page_table = std::addressof(client_process->PageTable());
 
             // // If we need to, reply with an async error.
             // if (R_FAILED(client_result)) {

src/core/hle/kernel/k_system_resource.cpp

@@ -40,7 +40,7 @@ Result KSecureSystemResource::Initialize(size_t size, KResourceLimit* resource_l
 
     // Get resource pointer.
     KPhysicalAddress resource_paddr =
-        KPageTable::GetHeapPhysicalAddress(m_kernel.MemoryLayout(), m_resource_address);
+        KPageTable::GetHeapPhysicalAddress(m_kernel, m_resource_address);
     auto* resource =
         m_kernel.System().DeviceMemory().GetPointer<KPageTableManager::RefCount>(resource_paddr);