Android #140

service: hid: Create appropriate hid resources

.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 +1,16 @@
+| 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) | [`ed9d19cb4`](https://github.com/yuzu-emu/yuzu//pull/12074/files) | Implement Native Code Execution (NCE) | [GPUCode](https://github.com/GPUCode/) | Yes |
+| [12110](https://github.com/yuzu-emu/yuzu//pull/12110) | [`e7878e3cf`](https://github.com/yuzu-emu/yuzu//pull/12110/files) | vk_texture_cache: add workaround for nullDescriptor on Mali | [liamwhite](https://github.com/liamwhite/) | Yes |
+| [12140](https://github.com/yuzu-emu/yuzu//pull/12140) | [`453fd4703`](https://github.com/yuzu-emu/yuzu//pull/12140/files) | query_cache: demote report synced unreachable to assert | [liamwhite](https://github.com/liamwhite/) | Yes |
+| [12142](https://github.com/yuzu-emu/yuzu//pull/12142) | [`a0d628958`](https://github.com/yuzu-emu/yuzu//pull/12142/files) | android: unload hid after shutdown | [liamwhite](https://github.com/liamwhite/) | 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

dist/languages/.tx/config

@@ -6,3 +6,8 @@ file_filter = <lang>.ts
 source_file = en.ts
 source_lang = en
 type = QT
+
+[o:yuzu-emulator:p:yuzu:r:yuzu-android]
+file_filter = ../../src/android/app/src/main/res/values-<lang>/strings.xml
+source_file = ../../src/android/app/src/main/res/values/strings.xml
+type = ANDROID

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/NativeLibrary.kt

@@ -301,6 +301,11 @@ object NativeLibrary {
      */
     external fun getPerfStats(): DoubleArray
 
+    /**
+     * Returns the current CPU backend.
+     */
+    external fun getCpuBackend(): String
+
     /**
      * Notifies the core emulation that the orientation has changed.
      */

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
@@ -92,28 +96,34 @@ class GameAdapter(private val activity: AppCompatActivity) :
             data = Uri.parse(holder.game.path)
         }
 
-        val layerDrawable = ResourcesCompat.getDrawable(
-            YuzuApplication.appContext.resources,
-            R.drawable.shortcut,
-            null
-        ) as LayerDrawable
-        layerDrawable.setDrawableByLayerId(
-            R.id.shortcut_foreground,
-            GameIconUtils.getGameIcon(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)
-            .setShortLabel(holder.game.title)
-            .setIcon(
-                IconCompat.createWithAdaptiveBitmap(
-                    layerDrawable.toBitmap(config = Bitmap.Config.ARGB_8888)
+        activity.lifecycleScope.launch {
+            withContext(Dispatchers.IO) {
+                val layerDrawable = ResourcesCompat.getDrawable(
+                    YuzuApplication.appContext.resources,
+                    R.drawable.shortcut,
+                    null
+                ) as LayerDrawable
+                layerDrawable.setDrawableByLayerId(
+                    R.id.shortcut_foreground,
+                    GameIconUtils.getGameIcon(activity, holder.game)
+                        .toDrawable(YuzuApplication.appContext.resources)
                 )
-            )
-            .setIntent(openIntent)
-            .build()
-        ShortcutManagerCompat.pushDynamicShortcut(YuzuApplication.appContext, shortcut)
+                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)
+                        .setShortLabel(holder.game.title)
+                        .setIcon(
+                            IconCompat.createWithAdaptiveBitmap(
+                                layerDrawable.toBitmap(config = Bitmap.Config.ARGB_8888)
+                            )
+                        )
+                        .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

@@ -73,10 +73,19 @@ abstract class SettingsItem(
                     R.string.frame_limit_slider,
                     R.string.frame_limit_slider_description,
                     1,
-                    200,
+                    400,
                     "%"
                 )
             )
+            put(
+                SingleChoiceSetting(
+                    IntSetting.CPU_BACKEND,
+                    R.string.cpu_backend,
+                    0,
+                    R.array.cpuBackendArm64Names,
+                    R.array.cpuBackendArm64Values
+                )
+            )
             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,
-    descriptionId: Int,
+    @StringRes titleId: 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.rightMargin = sideMargin + rightInsets
+            mlpSettingsList.leftMargin = leftInsets
+            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) {
-                    settingsViewModel.setShouldShowResetSettingsDialog(true)
-                }
+                SubmenuSetting(
+                    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
-            mlpAppBar.leftMargin = leftInsets
-            mlpAppBar.rightMargin = rightInsets
-            binding.appbarAbout.layoutParams = mlpAppBar
+            val mlpToolbar = binding.toolbarAbout.layoutParams as MarginLayoutParams
+            mlpToolbar.leftMargin = leftInsets
+            mlpToolbar.rightMargin = rightInsets
+            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/EmulationFragment.kt

@@ -414,8 +414,10 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
             perfStatsUpdater = {
                 if (emulationViewModel.emulationStarted.value) {
                     val perfStats = NativeLibrary.getPerfStats()
+                    val cpuBackend = NativeLibrary.getCpuBackend()
                     if (_binding != null) {
-                        binding.showFpsText.text = String.format("FPS: %.1f", perfStats[FPS])
+                        binding.showFpsText.text =
+                            String.format("FPS: %.1f\n%s", perfStats[FPS], cpuBackend)
                     }
                     perfStatsUpdateHandler.postDelayed(perfStatsUpdater!!, 800)
                 }

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

@@ -21,6 +21,8 @@ import org.yuzu.yuzu_emu.databinding.FragmentInstallablesBinding
 import org.yuzu.yuzu_emu.model.HomeViewModel
 import org.yuzu.yuzu_emu.model.Installable
 import org.yuzu.yuzu_emu.ui.main.MainActivity
+import java.time.LocalDateTime
+import java.time.format.DateTimeFormatter
 
 class InstallableFragment : Fragment() {
     private var _binding: FragmentInstallablesBinding? = null
@@ -78,7 +80,15 @@ class InstallableFragment : Fragment() {
                     R.string.manage_save_data,
                     R.string.import_export_saves_description,
                     install = { mainActivity.importSaves.launch(arrayOf("application/zip")) },
-                    export = { mainActivity.exportSave() }
+                    export = {
+                        mainActivity.exportSaves.launch(
+                            "yuzu saves - ${
+                            LocalDateTime.now().format(
+                                DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm")
+                            )
+                            }.zip"
+                        )
+                    }
                 )
             } else {
                 Installable(

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)
-        returnTransition = MaterialSharedAxis(MaterialSharedAxis.Z, true)
+        enterTransition = MaterialSharedAxis(MaterialSharedAxis.X, 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/Game.kt

@@ -18,8 +18,8 @@ class Game(
     val version: String = "",
     val isHomebrew: Boolean = false
 ) : Parcelable {
-    val keyAddedToLibraryTime get() = "${programId}_AddedToLibraryTime"
-    val keyLastPlayedTime get() = "${programId}_LastPlayed"
+    val keyAddedToLibraryTime get() = "${path}_AddedToLibraryTime"
+    val keyLastPlayedTime get() = "${path}_LastPlayed"
 
     override fun equals(other: Any?): Boolean {
         if (other !is Game) {

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/ui/main/MainActivity.kt

@@ -6,7 +6,6 @@ package org.yuzu.yuzu_emu.ui.main
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
-import android.provider.DocumentsContract
 import android.view.View
 import android.view.ViewGroup.MarginLayoutParams
 import android.view.WindowManager
@@ -20,7 +19,6 @@ import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
-import androidx.documentfile.provider.DocumentFile
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.repeatOnLifecycle
@@ -41,7 +39,6 @@ import org.yuzu.yuzu_emu.NativeLibrary
 import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.activities.EmulationActivity
 import org.yuzu.yuzu_emu.databinding.ActivityMainBinding
-import org.yuzu.yuzu_emu.features.DocumentProvider
 import org.yuzu.yuzu_emu.features.settings.model.Settings
 import org.yuzu.yuzu_emu.fragments.IndeterminateProgressDialogFragment
 import org.yuzu.yuzu_emu.fragments.MessageDialogFragment
@@ -53,9 +50,6 @@ import org.yuzu.yuzu_emu.model.TaskViewModel
 import org.yuzu.yuzu_emu.utils.*
 import java.io.BufferedInputStream
 import java.io.BufferedOutputStream
-import java.io.FileOutputStream
-import java.time.LocalDateTime
-import java.time.format.DateTimeFormatter
 import java.util.zip.ZipEntry
 import java.util.zip.ZipInputStream
 
@@ -73,7 +67,6 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
 
     // Get first subfolder in saves folder (should be the user folder)
     val savesFolderRoot get() = File(savesFolder).listFiles()?.firstOrNull()?.canonicalPath ?: ""
-    private var lastZipCreated: File? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         val splashScreen = installSplashScreen()
@@ -656,75 +649,31 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
             }.show(supportFragmentManager, IndeterminateProgressDialogFragment.TAG)
         }
 
-    /**
-     * Zips the save files located in the given folder path and creates a new zip file with the current date and time.
-     * @return true if the zip file is successfully created, false otherwise.
-     */
-    private fun zipSave(): Boolean {
-        try {
-            val tempFolder = File(getPublicFilesDir().canonicalPath, "temp")
-            tempFolder.mkdirs()
-            val saveFolder = File(savesFolderRoot)
-            val outputZipFile = File(
-                tempFolder,
-                "yuzu saves - ${
-                LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm"))
-                }.zip"
-            )
-            outputZipFile.createNewFile()
-            val result = FileUtil.zipFromInternalStorage(
-                saveFolder,
-                savesFolderRoot,
-                BufferedOutputStream(FileOutputStream(outputZipFile))
-            )
-            if (result == TaskState.Failed) {
-                return false
-            }
-            lastZipCreated = outputZipFile
-        } catch (e: Exception) {
-            return false
-        }
-        return true
-    }
-
     /**
      * Exports the save file located in the given folder path by creating a zip file and sharing it via intent.
      */
-    fun exportSave() {
-        CoroutineScope(Dispatchers.IO).launch {
-            val wasZipCreated = zipSave()
-            val lastZipFile = lastZipCreated
-            if (!wasZipCreated || lastZipFile == null) {
-                withContext(Dispatchers.Main) {
-                    Toast.makeText(
-                        this@MainActivity,
-                        getString(R.string.export_save_failed),
-                        Toast.LENGTH_LONG
-                    ).show()
-                }
-                return@launch
-            }
-
-            withContext(Dispatchers.Main) {
-                val file = DocumentFile.fromSingleUri(
-                    this@MainActivity,
-                    DocumentsContract.buildDocumentUri(
-                        DocumentProvider.AUTHORITY,
-                        "${DocumentProvider.ROOT_ID}/temp/${lastZipFile.name}"
-                    )
-                )!!
-                val intent = Intent(Intent.ACTION_SEND)
-                    .setDataAndType(file.uri, "application/zip")
-                    .addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
-                    .putExtra(Intent.EXTRA_STREAM, file.uri)
-                startForResultExportSave.launch(
-                    Intent.createChooser(
-                        intent,
-                        getString(R.string.share_save_file)
-                    )
-                )
-            }
+    val exportSaves = registerForActivityResult(
+        ActivityResultContracts.CreateDocument("application/zip")
+    ) { result ->
+        if (result == null) {
+            return@registerForActivityResult
         }
+
+        IndeterminateProgressDialogFragment.newInstance(
+            this,
+            R.string.save_files_exporting,
+            false
+        ) {
+            val zipResult = FileUtil.zipFromInternalStorage(
+                File(savesFolderRoot),
+                savesFolderRoot,
+                BufferedOutputStream(contentResolver.openOutputStream(result))
+            )
+            return@newInstance when (zipResult) {
+                TaskState.Completed -> getString(R.string.export_success)
+                TaskState.Cancelled, TaskState.Failed -> getString(R.string.export_failed)
+            }
+        }.show(supportFragmentManager, IndeterminateProgressDialogFragment.TAG)
     }
 
     private val startForResultExportSave =

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/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

@@ -316,8 +316,10 @@ void EmulationSession::ShutdownEmulation() {
 
     m_is_running = false;
 
-    // Unload user input.
-    m_system.HIDCore().UnloadInputDevices();
+    SCOPE_EXIT({
+        // Unload user input.
+        m_system.HIDCore().UnloadInputDevices();
+    });
 
     // Shutdown the main emulated process
     if (m_load_result == Core::SystemResultStatus::Success) {
@@ -372,8 +374,6 @@ void EmulationSession::RunEmulation() {
         m_system.InitializeDebugger();
     }
 
-    OnEmulationStarted();
-
     while (true) {
         {
             [[maybe_unused]] std::unique_lock lock(m_mutex);
@@ -709,6 +709,14 @@ jdoubleArray Java_org_yuzu_yuzu_1emu_NativeLibrary_getPerfStats(JNIEnv* env, jcl
     return j_stats;
 }
 
+jstring Java_org_yuzu_yuzu_1emu_NativeLibrary_getCpuBackend(JNIEnv* env, jclass clazz) {
+    if (Settings::IsNceEnabled()) {
+        return ToJString(env, "NCE");
+    }
+
+    return ToJString(env, "JIT");
+}
+
 void Java_org_yuzu_yuzu_1emu_utils_DirectoryInitialization_setSysDirectory(JNIEnv* env,
                                                                            jclass clazz,
                                                                            jstring j_path) {}

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_marginHorizontal="16dp"
+    android:layout_marginBottom="24dp"
+    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_height="250dp"
-                android:layout_marginTop="20dp"
+                android:layout_width="150dp"
+                android:layout_height="150dp"
+                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_marginTop="28dp" />
+                android:layout_marginHorizontal="20dp" />
 
             <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_height="128dp"
-            android:layout_margin="64dp"
+            android:layout_width="96dp"
+            android:layout_height="96dp"
+            android:layout_marginVertical="32dp"
             android:layout_gravity="center_horizontal"
             android:src="@drawable/ic_yuzu_full" />
 

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

@@ -127,6 +127,7 @@
             android:layout_height="wrap_content"
             android:clipToPadding="false"
             android:paddingVertical="4dp"
+            app:checkedChip="@id/chip_recently_played"
             app:chipSpacingHorizontal="12dp"
             app:singleLine="true"
             app:singleSelection="true">

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

@@ -10,41 +10,59 @@
     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="vertical">
+        android:orientation="horizontal">
 
-        <com.google.android.material.textview.MaterialTextView
-            android:id="@+id/text_setting_name"
-            style="@style/TextAppearance.Material3.HeadlineMedium"
+        <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"
             android:layout_height="wrap_content"
-            android:textAlignment="viewStart"
-            android:textSize="16sp"
-            app:lineHeight="22dp"
-            tools:text="Setting Name" />
+            android:orientation="vertical">
 
-        <com.google.android.material.textview.MaterialTextView
-            android:id="@+id/text_setting_description"
-            style="@style/TextAppearance.Material3.BodySmall"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="@dimen/spacing_small"
-            android:textAlignment="viewStart"
-            tools:text="@string/app_disclaimer" />
+            <com.google.android.material.textview.MaterialTextView
+                android:id="@+id/text_setting_name"
+                style="@style/TextAppearance.Material3.HeadlineMedium"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:textAlignment="viewStart"
+                android:textSize="17sp"
+                app:lineHeight="22dp"
+                tools:text="Setting Name" />
 
-        <com.google.android.material.textview.MaterialTextView
-            android:id="@+id/text_setting_value"
-            style="@style/TextAppearance.Material3.LabelMedium"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="@dimen/spacing_small"
-            android:textAlignment="viewStart"
-            android:textStyle="bold"
-            tools:text="1x" />
+            <com.google.android.material.textview.MaterialTextView
+                android:id="@+id/text_setting_description"
+                style="@style/TextAppearance.Material3.BodySmall"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/spacing_small"
+                android:textAlignment="viewStart"
+                tools:text="@string/app_disclaimer" />
+
+            <com.google.android.material.textview.MaterialTextView
+                android:id="@+id/text_setting_value"
+                style="@style/TextAppearance.Material3.LabelMedium"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/spacing_small"
+                android:textAlignment="viewStart"
+                android:textStyle="bold"
+                android:textSize="13sp"
+                tools:text="1x" />
+
+        </LinearLayout>
 
     </LinearLayout>
 

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:paddingStart="@dimen/spacing_large"
-    android:paddingEnd="24dp">
+    android:padding="16dp">
 
     <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 +175,24 @@
         <item>2</item>
     </integer-array>
 
+    <string-array name="cpuBackendArm64Names">
+        <item>@string/cpu_backend_dynarmic</item>
+        <item>@string/cpu_backend_nce</item>
+    </string-array>
+
+    <integer-array name="cpuBackendArm64Values">
+        <item>0</item>
+        <item>1</item>
+    </integer-array>
+
+    <string-array name="cpuBackendX86Names">
+        <item>@string/cpu_backend_dynarmic</item>
+    </string-array>
+
+    <integer-array name="cpuBackendX86Values">
+        <item>0</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

@@ -91,6 +91,7 @@
     <string name="manage_save_data">Manage save data</string>
     <string name="manage_save_data_description">Save data found. Please select an option below.</string>
     <string name="import_export_saves_description">Import or export save files</string>
+    <string name="save_files_exporting">Exporting save files…</string>
     <string name="save_file_imported_success">Imported successfully</string>
     <string name="save_file_invalid_zip_structure">Invalid save directory structure</string>
     <string name="save_file_invalid_zip_structure_description">The first subfolder name must be the title ID of the game.</string>
@@ -184,6 +185,7 @@
     <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 +242,7 @@
     <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>
@@ -255,6 +258,7 @@
     <string name="cancelling">Cancelling</string>
     <string name="install">Install</string>
     <string name="delete">Delete</string>
+    <string name="export_success">Exported successfully</string>
 
     <!-- GPU driver installation -->
     <string name="select_gpu_driver">Select GPU driver</string>
@@ -271,10 +275,14 @@
     <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 +417,10 @@
     <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 +361,55 @@ private:
 
 #elif defined(__linux__) || defined(__FreeBSD__) // ^^^ Windows ^^^ vvv Linux vvv
 
+#ifdef ARCHITECTURE_arm64
+
+static void* ChooseVirtualBase(size_t virtual_size) {
+    constexpr uintptr_t Map39BitSize = (1ULL << 39);
+    constexpr uintptr_t Map36BitSize = (1ULL << 36);
+
+    // This is not a cryptographic application, we just want something random.
+    std::mt19937_64 rng;
+
+    // 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 +472,7 @@ public:
             }
         }
 #else
-        virtual_base = static_cast<u8*>(mmap(nullptr, virtual_size, PROT_NONE,
-                                             MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0));
+        virtual_base = virtual_map_base = static_cast<u8*>(ChooseVirtualBase(virtual_size));
         if (virtual_base == MAP_FAILED) {
             LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno));
             throw std::bad_alloc{};
@@ -424,7 +480,7 @@ 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 +488,29 @@ public:
         Release();
     }
 
-    void Map(size_t virtual_offset, size_t host_offset, size_t length) {
-        {
-            std::scoped_lock lock{placeholder_mutex};
-            placeholders.subtract({virtual_offset, virtual_offset + length});
-        }
+    void Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perms) {
+        // Intersect the range with our address space.
+        AdjustMap(&virtual_offset, &length);
 
-        void* ret = mmap(virtual_base + virtual_offset, length, PROT_READ | PROT_WRITE,
-                         MAP_SHARED | MAP_FIXED, fd, host_offset);
+        // We are removing a placeholder.
+        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 +518,54 @@ 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.
 
-        {
-            std::scoped_lock lock{placeholder_mutex};
-            auto it = placeholders.find({virtual_offset - 1, virtual_offset + length + 1});
+        // Intersect the range with our address space.
+        AdjustMap(&virtual_offset, &length);
 
-            if (it != placeholders.end()) {
-                size_t prev_upper = virtual_offset + length;
-                virtual_offset = std::min(virtual_offset, it->lower());
-                length = std::max(it->upper(), prev_upper) - virtual_offset;
-            }
+        // Merge with any adjacent placeholder mappings.
+        auto [merged_pointer, merged_size] =
+            free_manager.FreeBlock(virtual_base + virtual_offset, length);
 
-            placeholders.add({virtual_offset, virtual_offset + length});
-        }
-
-        void* ret = mmap(virtual_base + virtual_offset, length, PROT_NONE,
+        void* ret = mmap(merged_pointer, merged_size, 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) {
-        int flags = 0;
+    void Protect(size_t virtual_offset, size_t length, bool read, bool write, bool execute) {
+        // 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) {
-            int ret = munmap(virtual_base, virtual_size);
+        if (virtual_map_base != MAP_FAILED) {
+            int ret = munmap(virtual_map_base, virtual_size);
             ASSERT_MSG(ret == 0, "munmap failed: {}", strerror(errno));
         }
 
@@ -502,10 +580,29 @@ 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
-    std::mutex placeholder_mutex;                  ///< Mutex for placeholders
+        // If we are direct mapped, we want to make sure we are operating on a region
+        // 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 +615,11 @@ 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 +632,16 @@ 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),
-                                                  AlignUp(virtual_size, PageAlignment) +
-                                                      3 * HugePageSize);
+        impl =
+            std::make_unique<HostMemory::Impl>(AlignUp(backing_size, PageAlignment),
+                                               AlignUp(virtual_size, PageAlignment) + HugePageSize);
         backing_base = impl->backing_base;
         virtual_base = impl->virtual_base;
 
         if (virtual_base) {
-            virtual_base += 2 * HugePageSize - 1;
-            virtual_base -= reinterpret_cast<size_t>(virtual_base) & (HugePageSize - 1);
+            // Ensure the virtual base is aligned to the L2 block size.
+            virtual_base = reinterpret_cast<u8*>(
+                Common::AlignUp(reinterpret_cast<uintptr_t>(virtual_base), HugePageSize));
             virtual_base_offset = virtual_base - impl->virtual_base;
         }
 
@@ -562,7 +660,8 @@ 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 +670,7 @@ 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 +683,22 @@ 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/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 = IsFastmemEnabled() && 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

@@ -6,10 +6,11 @@
 namespace Settings {
 namespace NativeButton {
 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_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_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,
-    SR,
+    SLLeft,
+    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

@@ -521,17 +521,28 @@ 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/hid_util.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
     hle/service/hid/errors.h
-    hle/service/hid/controllers/console_sixaxis.cpp
-    hle/service/hid/controllers/console_sixaxis.h
+    hle/service/hid/controllers/console_six_axis.cpp
+    hle/service/hid/controllers/console_six_axis.h
     hle/service/hid/controllers/controller_base.cpp
     hle/service/hid/controllers/controller_base.h
     hle/service/hid/controllers/debug_pad.cpp
@@ -546,6 +557,10 @@ add_library(core STATIC
     hle/service/hid/controllers/npad.h
     hle/service/hid/controllers/palma.cpp
     hle/service/hid/controllers/palma.h
+    hle/service/hid/controllers/seven_six_axis.cpp
+    hle/service/hid/controllers/seven_six_axis.h
+    hle/service/hid/controllers/six_axis.cpp
+    hle/service/hid/controllers/six_axis.h
     hle/service/hid/controllers/stubbed.cpp
     hle/service/hid/controllers/stubbed.h
     hle/service/hid/controllers/touchscreen.cpp
@@ -715,6 +730,7 @@ 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 +926,23 @@ if (ENABLE_WEB_SERVICE)
     target_link_libraries(core PRIVATE web_service)
 endif()
 
+if (ARCHITECTURE_arm64 AND (ANDROID OR ${CMAKE_SYSTEM_NAME} STREQUAL "Linux"))
+    target_compile_definitions(core PRIVATE -DHAS_NCE)
+    enable_language(C ASM)
+    set(CMAKE_ASM_FLAGS "${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)) {
@@ -201,6 +201,8 @@ void ARM_Interface::Run() {
         if (True(hr & HaltReason::DataAbort)) {
             if (system.DebuggerEnabled()) {
                 system.GetDebugger().NotifyThreadWatchpoint(current_thread, *HaltedWatchpoint());
+            } else {
+                LogBacktrace();
             }
             current_thread->RequestSuspend(SuspendType::Debug);
             break;

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 +1,400 @@
+// 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 determine why we crashed.
+    const bool is_prefetch_abort = host_ctx.pc == reinterpret_cast<u64>(info->si_addr);
+
+    // For data aborts, skip the instruction and return to guest code.
+    // This will allow games to continue in many scenarios where they would otherwise crash.
+    if (!is_prefetch_abort) {
+        host_ctx.pc += 4;
+        return true;
+    }
+
+    // This is a prefetch abort.
+    guest_ctx->esr_el1.fetch_or(static_cast<u64>(HaltReason::PrefetchAbort));
+
+    // 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 +1,474 @@
+// 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;
+constexpr u32 ModuleCodeIndex = 0x24 / sizeof(u32);
+
+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 = ModuleCodeIndex; 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;
+        }
+
+        if (auto exclusive = Exclusive{inst}; exclusive.Verify()) {
+            m_exclusives.push_back(i);
+        }
+    }
+
+    // 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 (const ModuleTextAddress i : m_exclusives) {
+        auto exclusive = Exclusive{text_words[i]};
+        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 +1,102 @@
+// 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{};
+    std::vector<ModuleTextAddress> m_exclusives{};
+    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;
-        system.GetAppLoader().ReadNSOModules(modules);
-
-        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())));
-        }
+        const auto main_offset = FindMainModuleEntrypoint(system);
+        SendReply(fmt::format("TextSeg={:x}", main_offset));
     } else if (command.starts_with("Xfer:libraries:read::")) {
-        Loader::AppLoader::Modules modules;
-        system.GetAppLoader().ReadNSOModules(modules);
+        auto modules = FindModules(system);
 
         std::string buffer;
         buffer += R"(<?xml version="1.0"?>)";
@@ -727,37 +830,6 @@ static constexpr const char* GetMemoryPermissionString(const Kernel::Svc::Memory
     }
 }
 
-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;
-}
-
 void GDBStub::HandleRcmd(const std::vector<u8>& command) {
     std::string_view command_str{reinterpret_cast<const char*>(&command[0]), command.size()};
     std::string reply;
@@ -784,8 +856,7 @@ void GDBStub::HandleRcmd(const std::vector<u8>& command) {
             reply = "Fastmem is not enabled.\n";
         }
     } else if (command_str == "get info") {
-        Loader::AppLoader::Modules modules;
-        system.GetAppLoader().ReadNSOModules(modules);
+        auto modules = FindModules(system);
 
         reply = fmt::format("Process:     {:#x} ({})\n"
                             "Program Id:  {:#018x}\n",

src/core/device_memory.cpp

@@ -6,7 +6,7 @@
 
 namespace Core {
 
-#ifdef ANDROID
+#ifdef HAS_NCE
 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

@@ -8,6 +8,7 @@
 #include "common/thread.h"
 #include "core/hid/emulated_controller.h"
 #include "core/hid/input_converter.h"
+#include "core/hle/service/hid/hid_util.h"
 
 namespace Core::HID {
 constexpr s32 HID_JOYSTICK_MAX = 0x7fff;
@@ -82,7 +83,7 @@ Settings::ControllerType EmulatedController::MapNPadToSettingsType(NpadStyleInde
 }
 
 void EmulatedController::ReloadFromSettings() {
-    const auto player_index = NpadIdTypeToIndex(npad_id_type);
+    const auto player_index = Service::HID::NpadIdTypeToIndex(npad_id_type);
     const auto& player = Settings::values.players.GetValue()[player_index];
 
     for (std::size_t index = 0; index < player.buttons.size(); ++index) {
@@ -118,7 +119,7 @@ void EmulatedController::ReloadFromSettings() {
 }
 
 void EmulatedController::ReloadColorsFromSettings() {
-    const auto player_index = NpadIdTypeToIndex(npad_id_type);
+    const auto player_index = Service::HID::NpadIdTypeToIndex(npad_id_type);
     const auto& player = Settings::values.players.GetValue()[player_index];
 
     // Avoid updating colors if overridden by physical controller
@@ -215,7 +216,7 @@ void EmulatedController::LoadDevices() {
 }
 
 void EmulatedController::LoadTASParams() {
-    const auto player_index = NpadIdTypeToIndex(npad_id_type);
+    const auto player_index = Service::HID::NpadIdTypeToIndex(npad_id_type);
     Common::ParamPackage common_params{};
     common_params.Set("engine", "tas");
     common_params.Set("port", static_cast<int>(player_index));
@@ -243,10 +244,12 @@ 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::SR].Set("button", 17);
+    tas_button_params[Settings::NativeButton::SLLeft].Set("button", 16);
+    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);
@@ -262,7 +265,7 @@ void EmulatedController::LoadTASParams() {
 }
 
 void EmulatedController::LoadVirtualGamepadParams() {
-    const auto player_index = NpadIdTypeToIndex(npad_id_type);
+    const auto player_index = Service::HID::NpadIdTypeToIndex(npad_id_type);
     Common::ParamPackage common_params{};
     common_params.Set("engine", "virtual_gamepad");
     common_params.Set("port", static_cast<int>(player_index));
@@ -296,10 +299,12 @@ 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::SR].Set("button", 17);
+    virtual_button_params[Settings::NativeButton::SLLeft].Set("button", 16);
+    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);
@@ -611,7 +616,7 @@ bool EmulatedController::IsConfiguring() const {
 }
 
 void EmulatedController::SaveCurrentConfig() {
-    const auto player_index = NpadIdTypeToIndex(npad_id_type);
+    const auto player_index = Service::HID::NpadIdTypeToIndex(npad_id_type);
     auto& player = Settings::values.players.GetValue()[player_index];
     player.connected = is_connected;
     player.controller_type = MapNPadToSettingsType(npad_type);
@@ -867,12 +872,16 @@ 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:
@@ -1204,7 +1213,7 @@ bool EmulatedController::SetVibration(std::size_t device_index, VibrationValue v
     if (!output_devices[device_index]) {
         return false;
     }
-    const auto player_index = NpadIdTypeToIndex(npad_id_type);
+    const auto player_index = Service::HID::NpadIdTypeToIndex(npad_id_type);
     const auto& player = Settings::values.players.GetValue()[player_index];
     const f32 strength = static_cast<f32>(player.vibration_strength) / 100.0f;
 
@@ -1230,7 +1239,7 @@ bool EmulatedController::SetVibration(std::size_t device_index, VibrationValue v
 }
 
 bool EmulatedController::IsVibrationEnabled(std::size_t device_index) {
-    const auto player_index = NpadIdTypeToIndex(npad_id_type);
+    const auto player_index = Service::HID::NpadIdTypeToIndex(npad_id_type);
     const auto& player = Settings::values.players.GetValue()[player_index];
 
     if (!player.vibration_enabled) {
@@ -1640,7 +1649,7 @@ void EmulatedController::SetNpadStyleIndex(NpadStyleIndex npad_type_) {
     }
     if (is_connected) {
         LOG_WARNING(Service_HID, "Controller {} type changed while it's connected",
-                    NpadIdTypeToIndex(npad_id_type));
+                    Service::HID::NpadIdTypeToIndex(npad_id_type));
     }
     npad_type = npad_type_;
 }
@@ -1890,12 +1899,16 @@ 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_core.cpp

@@ -6,6 +6,7 @@
 #include "core/hid/emulated_controller.h"
 #include "core/hid/emulated_devices.h"
 #include "core/hid/hid_core.h"
+#include "core/hle/service/hid/hid_util.h"
 
 namespace Core::HID {
 
@@ -98,11 +99,11 @@ const EmulatedDevices* HIDCore::GetEmulatedDevices() const {
 }
 
 EmulatedController* HIDCore::GetEmulatedControllerByIndex(std::size_t index) {
-    return GetEmulatedController(IndexToNpadIdType(index));
+    return GetEmulatedController(Service::HID::IndexToNpadIdType(index));
 }
 
 const EmulatedController* HIDCore::GetEmulatedControllerByIndex(std::size_t index) const {
-    return GetEmulatedController(IndexToNpadIdType(index));
+    return GetEmulatedController(Service::HID::IndexToNpadIdType(index));
 }
 
 void HIDCore::SetSupportedStyleTag(NpadStyleTag style_tag) {

src/core/hid/hid_types.h

@@ -8,6 +8,7 @@
 #include "common/common_types.h"
 #include "common/point.h"
 #include "common/uuid.h"
+#include "common/vector_math.h"
 
 namespace Core::HID {
 
@@ -218,6 +219,13 @@ enum class NpadIdType : u32 {
     Invalid = 0xFFFFFFFF,
 };
 
+enum class NpadInterfaceType : u8 {
+    Bluetooth = 1,
+    Rail = 2,
+    Usb = 3,
+    Embedded = 4,
+};
+
 // This is nn::hid::NpadStyleIndex
 enum class NpadStyleIndex : u8 {
     None = 0,
@@ -356,6 +364,14 @@ 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};
@@ -583,6 +599,29 @@ struct SixAxisSensorIcInformation {
 static_assert(sizeof(SixAxisSensorIcInformation) == 0xC8,
               "SixAxisSensorIcInformation is an invalid size");
 
+// This is nn::hid::SixAxisSensorAttribute
+struct SixAxisSensorAttribute {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> is_connected;
+        BitField<1, 1, u32> is_interpolated;
+    };
+};
+static_assert(sizeof(SixAxisSensorAttribute) == 4, "SixAxisSensorAttribute is an invalid size");
+
+// This is nn::hid::SixAxisSensorState
+struct SixAxisSensorState {
+    s64 delta_time{};
+    s64 sampling_number{};
+    Common::Vec3f accel{};
+    Common::Vec3f gyro{};
+    Common::Vec3f rotation{};
+    std::array<Common::Vec3f, 3> orientation{};
+    SixAxisSensorAttribute attribute{};
+    INSERT_PADDING_BYTES(4); // Reserved
+};
+static_assert(sizeof(SixAxisSensorState) == 0x60, "SixAxisSensorState is an invalid size");
+
 // This is nn::hid::VibrationDeviceHandle
 struct VibrationDeviceHandle {
     NpadStyleIndex npad_type{NpadStyleIndex::None};
@@ -693,60 +732,4 @@ struct UniquePadId {
 };
 static_assert(sizeof(UniquePadId) == 0x8, "UniquePadId is an invalid size");
 
-/// Converts a NpadIdType to an array index.
-constexpr size_t NpadIdTypeToIndex(NpadIdType npad_id_type) {
-    switch (npad_id_type) {
-    case NpadIdType::Player1:
-        return 0;
-    case NpadIdType::Player2:
-        return 1;
-    case NpadIdType::Player3:
-        return 2;
-    case NpadIdType::Player4:
-        return 3;
-    case NpadIdType::Player5:
-        return 4;
-    case NpadIdType::Player6:
-        return 5;
-    case NpadIdType::Player7:
-        return 6;
-    case NpadIdType::Player8:
-        return 7;
-    case NpadIdType::Handheld:
-        return 8;
-    case NpadIdType::Other:
-        return 9;
-    default:
-        return 0;
-    }
-}
-
-/// Converts an array index to a NpadIdType
-constexpr NpadIdType IndexToNpadIdType(size_t index) {
-    switch (index) {
-    case 0:
-        return NpadIdType::Player1;
-    case 1:
-        return NpadIdType::Player2;
-    case 2:
-        return NpadIdType::Player3;
-    case 3:
-        return NpadIdType::Player4;
-    case 4:
-        return NpadIdType::Player5;
-    case 5:
-        return NpadIdType::Player6;
-    case 6:
-        return NpadIdType::Player7;
-    case 7:
-        return NpadIdType::Player8;
-    case 8:
-        return NpadIdType::Handheld;
-    case 9:
-        return NpadIdType::Other;
-    default:
-        return NpadIdType::Invalid;
-    }
-}
-
 } // namespace Core::HID

src/core/hid/input_interpreter.cpp

@@ -5,21 +5,22 @@
 #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")
-               ->GetAppletResource()
-               ->GetController<Service::HID::Controller_NPad>(Service::HID::HidController::NPad)} {
+               .GetService<Service::HID::IHidServer>("hid")
+               ->GetResourceManager()
+               ->GetNpad()} {
     ResetButtonStates();
 }
 
 InputInterpreter::~InputInterpreter() = default;
 
 void InputInterpreter::PollInput() {
-    const auto button_state = npad.GetAndResetPressState();
+    const auto button_state = npad->GetAndResetPressState();
 
     previous_index = current_index;
     current_index = (current_index + 1) % button_states.size();

src/core/hid/input_interpreter.h

@@ -16,7 +16,7 @@ enum class NpadButton : u64;
 }
 
 namespace Service::HID {
-class Controller_NPad;
+class NPad;
 }
 
 /**
@@ -101,7 +101,7 @@ public:
     }
 
 private:
-    Service::HID::Controller_NPad& npad;
+    std::shared_ptr<Service::HID::NPad> npad;
 
     /// Stores 9 consecutive button states polled from HID.
     std::array<Core::HID::NpadButton, 9> button_states{};

src/core/hle/kernel/code_set.h

@@ -75,12 +75,26 @@ struct CodeSet final {
         return segments[2];
     }
 
+#ifdef HAS_NCE
+    Segment& PatchSegment() {
+        return patch_segment;
+    }
+
+    const Segment& PatchSegment() const {
+        return patch_segment;
+    }
+#endif
+
     /// The overall data that backs this code set.
     Kernel::PhysicalMemory memory;
 
     /// The segments that comprise this code set.
     std::array<Segment, 3> segments;
 
+#ifdef HAS_NCE
+    Segment patch_segment;
+#endif
+
     /// 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
-   // With Android, we use a 38-bit address space due to memory limitations. This should (safely) truncate ASLR region.
+#ifdef HAS_NCE
+   // 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

@@ -5,6 +5,7 @@
 #include "core/hle/kernel/k_capabilities.h"
 #include "core/hle/kernel/k_memory_layout.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"
@@ -329,6 +330,8 @@ Result KCapabilities::SetCapabilities(std::span<const u32> caps, KProcessPageTab
 
             // 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_page_table_base.cpp

@@ -88,6 +88,22 @@ Result FlushDataCache(AddressType addr, u64 size) {
     R_SUCCEED();
 }
 
+constexpr Common::MemoryPermission ConvertToMemoryPermission(KMemoryPermission perm) {
+    Common::MemoryPermission perms{};
+    if (True(perm & KMemoryPermission::UserRead)) {
+        perms |= Common::MemoryPermission::Read;
+    }
+    if (True(perm & KMemoryPermission::UserWrite)) {
+        perms |= Common::MemoryPermission::Write;
+    }
+#ifdef HAS_NCE
+    if (True(perm & KMemoryPermission::UserExecute)) {
+        perms |= Common::MemoryPermission::Execute;
+    }
+#endif
+    return perms;
+}
+
 } // namespace
 
 void KPageTableBase::MemoryRange::Open() {
@@ -170,7 +186,8 @@ Result KPageTableBase::InitializeForProcess(Svc::CreateProcessFlag as_type, bool
                                             KMemoryManager::Pool pool, KProcessAddress code_address,
                                             size_t code_size, KSystemResource* system_resource,
                                             KResourceLimit* resource_limit,
-                                            Core::Memory::Memory& memory) {
+                                            Core::Memory::Memory& memory,
+                                            KProcessAddress aslr_space_start) {
     // Calculate region extents.
     const size_t as_width = GetAddressSpaceWidth(as_type);
     const KProcessAddress start = 0;
@@ -211,7 +228,8 @@ Result KPageTableBase::InitializeForProcess(Svc::CreateProcessFlag as_type, bool
         heap_region_size = GetSpaceSize(KAddressSpaceInfo::Type::Heap);
         stack_region_size = GetSpaceSize(KAddressSpaceInfo::Type::Stack);
         kernel_map_region_size = GetSpaceSize(KAddressSpaceInfo::Type::MapSmall);
-        m_code_region_start = GetSpaceStart(KAddressSpaceInfo::Type::Map39Bit);
+        m_code_region_start = m_address_space_start + aslr_space_start +
+                              GetSpaceStart(KAddressSpaceInfo::Type::Map39Bit);
         m_code_region_end = m_code_region_start + GetSpaceSize(KAddressSpaceInfo::Type::Map39Bit);
         m_alias_code_region_start = m_code_region_start;
         m_alias_code_region_end = m_code_region_end;
@@ -1617,9 +1635,9 @@ void KPageTableBase::RemapPageGroup(PageLinkedList* page_list, KProcessAddress a
         const KMemoryInfo info = it->GetMemoryInfo();
 
         // Determine the range to map.
-        KProcessAddress map_address = std::max(info.GetAddress(), GetInteger(start_address));
+        KProcessAddress map_address = std::max<u64>(info.GetAddress(), GetInteger(start_address));
         const KProcessAddress map_end_address =
-            std::min(info.GetEndAddress(), GetInteger(end_address));
+            std::min<u64>(info.GetEndAddress(), GetInteger(end_address));
         ASSERT(map_end_address != map_address);
 
         // Determine if we should disable head merge.
@@ -5643,7 +5661,8 @@ Result KPageTableBase::Operate(PageLinkedList* page_list, KProcessAddress virt_a
     case OperationType::Map: {
         ASSERT(virt_addr != 0);
         ASSERT(Common::IsAligned(GetInteger(virt_addr), PageSize));
-        m_memory->MapMemoryRegion(*m_impl, virt_addr, num_pages * PageSize, phys_addr);
+        m_memory->MapMemoryRegion(*m_impl, virt_addr, num_pages * PageSize, phys_addr,
+                                  ConvertToMemoryPermission(properties.perm));
 
         // Open references to pages, if we should.
         if (this->IsHeapPhysicalAddress(phys_addr)) {
@@ -5658,8 +5677,11 @@ Result KPageTableBase::Operate(PageLinkedList* page_list, KProcessAddress virt_a
     }
     case OperationType::ChangePermissions:
     case OperationType::ChangePermissionsAndRefresh:
-    case OperationType::ChangePermissionsAndRefreshAndFlush:
+    case OperationType::ChangePermissionsAndRefreshAndFlush: {
+        m_memory->ProtectRegion(*m_impl, virt_addr, num_pages * PageSize,
+                                ConvertToMemoryPermission(properties.perm));
         R_SUCCEED();
+    }
     default:
         UNREACHABLE();
     }
@@ -5687,7 +5709,8 @@ Result KPageTableBase::Operate(PageLinkedList* page_list, KProcessAddress virt_a
             const size_t size{node.GetNumPages() * PageSize};
 
             // Map the pages.
-            m_memory->MapMemoryRegion(*m_impl, virt_addr, size, node.GetAddress());
+            m_memory->MapMemoryRegion(*m_impl, virt_addr, size, node.GetAddress(),
+                                      ConvertToMemoryPermission(properties.perm));
 
             virt_addr += size;
         }

src/core/hle/kernel/k_page_table_base.h

@@ -235,7 +235,8 @@ public:
                                 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);
+                                KResourceLimit* resource_limit, Core::Memory::Memory& memory,
+                                KProcessAddress aslr_space_start);
 
     void Finalize();
 

src/core/hle/kernel/k_process.cpp

@@ -300,7 +300,7 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params, const KPa
             False(params.flags & Svc::CreateProcessFlag::DisableDeviceAddressSpaceMerge);
         R_TRY(m_page_table.Initialize(as_type, enable_aslr, enable_das_merge, !enable_aslr, pool,
                                       params.code_address, 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.
@@ -393,7 +393,7 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params,
             False(params.flags & Svc::CreateProcessFlag::DisableDeviceAddressSpaceMerge);
         R_TRY(m_page_table.Initialize(as_type, enable_aslr, enable_das_merge, !enable_aslr, pool,
                                       params.code_address, code_size, m_system_resource, res_limit,
-                                      this->GetMemory()));
+                                      this->GetMemory(), aslr_space_start));
     }
     ON_RESULT_FAILURE_2 {
         m_page_table.Finalize();
@@ -1128,7 +1128,7 @@ KProcess::KProcess(KernelCore& 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

@@ -120,6 +120,9 @@ private:
     std::atomic<s64> m_num_ipc_messages{};
     std::atomic<s64> m_num_ipc_replies{};
     std::atomic<s64> m_num_ipc_receives{};
+#ifdef HAS_NCE
+    std::unordered_map<u64, u64> m_post_handlers{};
+#endif
 
 private:
     Result StartTermination();
@@ -150,7 +153,8 @@ 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 {
@@ -466,6 +470,12 @@ public:
 
     static void Switch(KProcess* cur_process, KProcess* next_process);
 
+#ifdef HAS_NCE
+    std::unordered_map<u64, u64>& GetPostHandlers() noexcept {
+        return m_post_handlers;
+    }
+#endif
+
 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 +489,7 @@ 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

@@ -23,10 +23,11 @@ public:
     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) {
-        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));
+                      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() {

src/core/hle/kernel/k_thread.h

@@ -655,6 +655,21 @@ public:
         return m_stack_top;
     }
 
+public:
+    // TODO: This shouldn't be defined in kernel namespace
+    struct NativeExecutionParameters {
+        u64 tpidr_el0{};
+        u64 tpidrro_el0{};
+        void* native_context{};
+        std::atomic<u32> lock{1};
+        bool is_running{};
+        u32 magic{Common::MakeMagic('Y', 'U', 'Z', 'U')};
+    };
+
+    NativeExecutionParameters& GetNativeExecutionParameters() {
+        return m_native_execution_parameters;
+    }
+
 private:
     KThread* RemoveWaiterByKey(bool* out_has_waiters, KProcessAddress key,
                                bool is_kernel_address_key);
@@ -914,6 +929,7 @@ private:
     ThreadWaitReasonForDebugging m_wait_reason_for_debugging{};
     uintptr_t m_argument{};
     KProcessAddress m_stack_top{};
+    NativeExecutionParameters m_native_execution_parameters{};
 
 public:
     using ConditionVariableThreadTreeType = ConditionVariableThreadTree;

src/core/hle/kernel/physical_core.cpp

@@ -1,8 +1,12 @@
 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include "common/settings.h"
 #include "core/arm/dynarmic/arm_dynarmic_32.h"
 #include "core/arm/dynarmic/arm_dynarmic_64.h"
+#ifdef HAS_NCE
+#include "core/arm/nce/arm_nce.h"
+#endif
 #include "core/core.h"
 #include "core/hle/kernel/k_scheduler.h"
 #include "core/hle/kernel/kernel.h"
@@ -14,7 +18,8 @@ PhysicalCore::PhysicalCore(std::size_t core_index, Core::System& system, KSchedu
     : m_core_index{core_index}, m_system{system}, m_scheduler{scheduler} {
 #if defined(ARCHITECTURE_x86_64) || defined(ARCHITECTURE_arm64)
     // TODO(bunnei): Initialization relies on a core being available. We may later replace this with
-    // a 32-bit instance of Dynarmic. This should be abstracted out to a CPU manager.
+    // an NCE interface or a 32-bit instance of Dynarmic. This should be abstracted out to a CPU
+    // manager.
     auto& kernel = system.Kernel();
     m_arm_interface = std::make_unique<Core::ARM_Dynarmic_64>(
         system, kernel.IsMulticore(),
@@ -28,6 +33,13 @@ PhysicalCore::PhysicalCore(std::size_t core_index, Core::System& system, KSchedu
 PhysicalCore::~PhysicalCore() = default;
 
 void PhysicalCore::Initialize(bool is_64_bit) {
+#if defined(HAS_NCE)
+    if (Settings::IsNceEnabled()) {
+        m_arm_interface = std::make_unique<Core::ARM_NCE>(m_system, m_system.Kernel().IsMulticore(),
+                                                          m_core_index);
+        return;
+    }
+#endif
 #if defined(ARCHITECTURE_x86_64) || defined(ARCHITECTURE_arm64)
     auto& kernel = m_system.Kernel();
     if (!is_64_bit) {

src/core/hle/service/am/am.cpp

@@ -13,6 +13,7 @@
 #include "core/file_sys/patch_manager.h"
 #include "core/file_sys/registered_cache.h"
 #include "core/file_sys/savedata_factory.h"
+#include "core/hid/hid_types.h"
 #include "core/hle/kernel/k_event.h"
 #include "core/hle/kernel/k_transfer_memory.h"
 #include "core/hle/result.h"
@@ -21,6 +22,7 @@
 #include "core/hle/service/am/applet_ae.h"
 #include "core/hle/service/am/applet_oe.h"
 #include "core/hle/service/am/applets/applet_cabinet.h"
+#include "core/hle/service/am/applets/applet_controller.h"
 #include "core/hle/service/am/applets/applet_mii_edit_types.h"
 #include "core/hle/service/am/applets/applet_profile_select.h"
 #include "core/hle/service/am/applets/applet_software_keyboard_types.h"
@@ -35,6 +37,7 @@
 #include "core/hle/service/caps/caps_su.h"
 #include "core/hle/service/caps/caps_types.h"
 #include "core/hle/service/filesystem/filesystem.h"
+#include "core/hle/service/hid/controllers/npad.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/ns/ns.h"
 #include "core/hle/service/nvnflinger/fb_share_buffer_manager.h"
@@ -73,7 +76,7 @@ IWindowController::IWindowController(Core::System& system_)
     static const FunctionInfo functions[] = {
         {0, nullptr, "CreateWindow"},
         {1, &IWindowController::GetAppletResourceUserId, "GetAppletResourceUserId"},
-        {2, nullptr, "GetAppletResourceUserIdOfCallerApplet"},
+        {2, &IWindowController::GetAppletResourceUserIdOfCallerApplet, "GetAppletResourceUserIdOfCallerApplet"},
         {10, &IWindowController::AcquireForegroundRights, "AcquireForegroundRights"},
         {11, nullptr, "ReleaseForegroundRights"},
         {12, nullptr, "RejectToChangeIntoBackground"},
@@ -97,6 +100,16 @@ void IWindowController::GetAppletResourceUserId(HLERequestContext& ctx) {
     rb.Push<u64>(process_id);
 }
 
+void IWindowController::GetAppletResourceUserIdOfCallerApplet(HLERequestContext& ctx) {
+    const u64 process_id = 0;
+
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(ResultSuccess);
+    rb.Push<u64>(process_id);
+}
+
 void IWindowController::AcquireForegroundRights(HLERequestContext& ctx) {
     LOG_WARNING(Service_AM, "(STUBBED) called");
     IPC::ResponseBuilder rb{ctx, 2};
@@ -1565,7 +1578,7 @@ ILibraryAppletSelfAccessor::ILibraryAppletSelfAccessor(Core::System& system_)
         {6, nullptr, "GetPopInteractiveInDataEvent"},
         {10, &ILibraryAppletSelfAccessor::ExitProcessAndReturn, "ExitProcessAndReturn"},
         {11, &ILibraryAppletSelfAccessor::GetLibraryAppletInfo, "GetLibraryAppletInfo"},
-        {12, nullptr, "GetMainAppletIdentityInfo"},
+        {12, &ILibraryAppletSelfAccessor::GetMainAppletIdentityInfo, "GetMainAppletIdentityInfo"},
         {13, nullptr, "CanUseApplicationCore"},
         {14, &ILibraryAppletSelfAccessor::GetCallerAppletIdentityInfo, "GetCallerAppletIdentityInfo"},
         {15, nullptr, "GetMainAppletApplicationControlProperty"},
@@ -1609,6 +1622,9 @@ ILibraryAppletSelfAccessor::ILibraryAppletSelfAccessor(Core::System& system_)
     case Applets::AppletId::SoftwareKeyboard:
         PushInShowSoftwareKeyboard();
         break;
+    case Applets::AppletId::Controller:
+        PushInShowController();
+        break;
     default:
         break;
     }
@@ -1666,13 +1682,33 @@ void ILibraryAppletSelfAccessor::GetLibraryAppletInfo(HLERequestContext& ctx) {
     rb.PushRaw(applet_info);
 }
 
+void ILibraryAppletSelfAccessor::GetMainAppletIdentityInfo(HLERequestContext& ctx) {
+    struct AppletIdentityInfo {
+        Applets::AppletId applet_id;
+        INSERT_PADDING_BYTES(0x4);
+        u64 application_id;
+    };
+    static_assert(sizeof(AppletIdentityInfo) == 0x10, "AppletIdentityInfo has incorrect size.");
+
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    const AppletIdentityInfo applet_info{
+        .applet_id = Applets::AppletId::QLaunch,
+        .application_id = 0x0100000000001000ull,
+    };
+
+    IPC::ResponseBuilder rb{ctx, 6};
+    rb.Push(ResultSuccess);
+    rb.PushRaw(applet_info);
+}
+
 void ILibraryAppletSelfAccessor::GetCallerAppletIdentityInfo(HLERequestContext& ctx) {
     struct AppletIdentityInfo {
         Applets::AppletId applet_id;
         INSERT_PADDING_BYTES(0x4);
         u64 application_id;
     };
-
+    static_assert(sizeof(AppletIdentityInfo) == 0x10, "AppletIdentityInfo has incorrect size.");
     LOG_WARNING(Service_AM, "(STUBBED) called");
 
     const AppletIdentityInfo applet_info{
@@ -1737,6 +1773,55 @@ void ILibraryAppletSelfAccessor::PushInShowAlbum() {
     queue_data.emplace_back(std::move(settings_data));
 }
 
+void ILibraryAppletSelfAccessor::PushInShowController() {
+    const Applets::CommonArguments common_args = {
+        .arguments_version = Applets::CommonArgumentVersion::Version3,
+        .size = Applets::CommonArgumentSize::Version3,
+        .library_version = static_cast<u32>(Applets::ControllerAppletVersion::Version8),
+        .theme_color = Applets::ThemeColor::BasicBlack,
+        .play_startup_sound = true,
+        .system_tick = system.CoreTiming().GetClockTicks(),
+    };
+
+    Applets::ControllerSupportArgNew user_args = {
+        .header = {.player_count_min = 1,
+                   .player_count_max = 4,
+                   .enable_take_over_connection = true,
+                   .enable_left_justify = false,
+                   .enable_permit_joy_dual = true,
+                   .enable_single_mode = false,
+                   .enable_identification_color = false},
+        .identification_colors = {},
+        .enable_explain_text = false,
+        .explain_text = {},
+    };
+
+    Applets::ControllerSupportArgPrivate private_args = {
+        .arg_private_size = sizeof(Applets::ControllerSupportArgPrivate),
+        .arg_size = sizeof(Applets::ControllerSupportArgNew),
+        .is_home_menu = true,
+        .flag_1 = true,
+        .mode = Applets::ControllerSupportMode::ShowControllerSupport,
+        .caller = Applets::ControllerSupportCaller::
+            Application, // switchbrew: Always zero except with
+                         // ShowControllerFirmwareUpdateForSystem/ShowControllerKeyRemappingForSystem,
+                         // which sets this to the input param
+        .style_set = Core::HID::NpadStyleSet::None,
+        .joy_hold_type = 0,
+    };
+    std::vector<u8> common_args_data(sizeof(common_args));
+    std::vector<u8> private_args_data(sizeof(private_args));
+    std::vector<u8> user_args_data(sizeof(user_args));
+
+    std::memcpy(common_args_data.data(), &common_args, sizeof(common_args));
+    std::memcpy(private_args_data.data(), &private_args, sizeof(private_args));
+    std::memcpy(user_args_data.data(), &user_args, sizeof(user_args));
+
+    queue_data.emplace_back(std::move(common_args_data));
+    queue_data.emplace_back(std::move(private_args_data));
+    queue_data.emplace_back(std::move(user_args_data));
+}
+
 void ILibraryAppletSelfAccessor::PushInShowCabinetData() {
     const Applets::CommonArguments arguments{
         .arguments_version = Applets::CommonArgumentVersion::Version3,

src/core/hle/service/am/am.h

@@ -87,6 +87,7 @@ public:
 
 private:
     void GetAppletResourceUserId(HLERequestContext& ctx);
+    void GetAppletResourceUserIdOfCallerApplet(HLERequestContext& ctx);
     void AcquireForegroundRights(HLERequestContext& ctx);
 };
 
@@ -345,6 +346,7 @@ private:
     void PopInData(HLERequestContext& ctx);
     void PushOutData(HLERequestContext& ctx);
     void GetLibraryAppletInfo(HLERequestContext& ctx);
+    void GetMainAppletIdentityInfo(HLERequestContext& ctx);
     void ExitProcessAndReturn(HLERequestContext& ctx);
     void GetCallerAppletIdentityInfo(HLERequestContext& ctx);
     void GetDesirableKeyboardLayout(HLERequestContext& ctx);
@@ -355,6 +357,7 @@ private:
     void PushInShowCabinetData();
     void PushInShowMiiEditData();
     void PushInShowSoftwareKeyboard();
+    void PushInShowController();
 
     std::deque<std::vector<u8>> queue_data;
 };

src/core/hle/service/am/applets/applet_controller.h

@@ -56,7 +56,7 @@ enum class ControllerSupportResult : u32 {
 struct ControllerSupportArgPrivate {
     u32 arg_private_size{};
     u32 arg_size{};
-    bool flag_0{};
+    bool is_home_menu{};
     bool flag_1{};
     ControllerSupportMode mode{};
     ControllerSupportCaller caller{};