HOS: Load RomFs by pid (#4301)

We currently loading only one RomFs at a time, which could be wrong if one day we want to load more than one guest at time.
This PR fixes that by loading romfs by pid.

ARMeilleure/Memory/IJitMemoryAllocator.cs

@@ -4,5 +4,7 @@
     {
         IJitMemoryBlock Allocate(ulong size);
         IJitMemoryBlock Reserve(ulong size);
+
+        ulong GetPageSize();
     }
 }

ARMeilleure/Signal/NativeSignalHandler.cs

@@ -71,8 +71,8 @@ namespace ARMeilleure.Signal
 
         private const uint EXCEPTION_ACCESS_VIOLATION = 0xc0000005;
 
-        private static ulong _pageSize = GetPageSize();
+        private static ulong _pageSize;
-        private static ulong _pageMask = _pageSize - 1;
+        private static ulong _pageMask;
 
         private static IntPtr _handlerConfig;
         private static IntPtr _signalHandlerPtr;
@@ -81,19 +81,6 @@ namespace ARMeilleure.Signal
         private static readonly object _lock = new object();
         private static bool _initialized;
 
-        private static ulong GetPageSize()
-        {
-            // TODO: This needs to be based on the current memory manager configuration.
-            if (OperatingSystem.IsMacOS() && RuntimeInformation.ProcessArchitecture == Architecture.Arm64)
-            {
-                return 1UL << 14;
-            }
-            else
-            {
-                return 1UL << 12;
-            }
-        }
-
         static NativeSignalHandler()
         {
             _handlerConfig = Marshal.AllocHGlobal(Unsafe.SizeOf<SignalHandlerConfig>());
@@ -102,12 +89,12 @@ namespace ARMeilleure.Signal
             config = new SignalHandlerConfig();
         }
 
-        public static void InitializeJitCache(IJitMemoryAllocator allocator)
+        public static void Initialize(IJitMemoryAllocator allocator)
         {
             JitCache.Initialize(allocator);
         }
 
-        public static void InitializeSignalHandler(Func<IntPtr, IntPtr, IntPtr> customSignalHandlerFactory = null)
+        public static void InitializeSignalHandler(ulong pageSize, Func<IntPtr, IntPtr, IntPtr> customSignalHandlerFactory = null)
         {
             if (_initialized) return;
 
@@ -115,6 +102,9 @@ namespace ARMeilleure.Signal
             {
                 if (_initialized) return;
 
+                _pageSize = pageSize;
+                _pageMask = pageSize - 1;
+
                 ref SignalHandlerConfig config = ref GetConfigRef();
 
                 if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())

ARMeilleure/Translation/Translator.cs

@@ -81,7 +81,7 @@ namespace ARMeilleure.Translation
 
             if (memory.Type.IsHostMapped())
             {
-                NativeSignalHandler.InitializeSignalHandler();
+                NativeSignalHandler.InitializeSignalHandler(allocator.GetPageSize());
             }
         }
 

Ryujinx.Ava/AppHost.cs

@@ -12,9 +12,9 @@ using Ryujinx.Audio.Integration;
 using Ryujinx.Ava.Common;
 using Ryujinx.Ava.Common.Locale;
 using Ryujinx.Ava.Input;
-using Ryujinx.Ava.UI.Controls;
 using Ryujinx.Ava.UI.Helpers;
 using Ryujinx.Ava.UI.Models;
+using Ryujinx.Ava.UI.Renderer;
 using Ryujinx.Ava.UI.ViewModels;
 using Ryujinx.Ava.UI.Windows;
 using Ryujinx.Common;
@@ -44,7 +44,6 @@ using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
-using System.Runtime.Versioning;
 using System.Threading;
 using System.Threading.Tasks;
 using static Ryujinx.Ava.UI.Helpers.Win32NativeInterop;
@@ -66,8 +65,8 @@ namespace Ryujinx.Ava
         private const float VolumeDelta        = 0.05f;
 
         private static readonly Cursor InvisibleCursor = new(StandardCursorType.None);
-        private readonly IntPtr InvisibleCursorWin;
+        private readonly IntPtr        InvisibleCursorWin;
-        private readonly IntPtr DefaultCursorWin;
+        private readonly IntPtr        DefaultCursorWin;
 
         private readonly long      _ticksPerFrame;
         private readonly Stopwatch _chrono;
@@ -80,6 +79,7 @@ namespace Ryujinx.Ava
         private readonly MainWindowViewModel _viewModel;
         private readonly IKeyboard           _keyboardInterface;
         private readonly TopLevel            _topLevel;
+        public           RendererHost        _rendererHost;
 
         private readonly GraphicsDebugLevel _glLogLevel;
         private float                       _newVolume;
@@ -105,7 +105,6 @@ namespace Ryujinx.Ava
         public event EventHandler AppExit;
         public event EventHandler<StatusUpdatedEventArgs> StatusUpdatedEvent;
 
-        public RendererHost       Renderer           { get; }
         public VirtualFileSystem  VirtualFileSystem  { get; }
         public ContentManager     ContentManager     { get; }
         public NpadManager        NpadManager        { get; }
@@ -117,7 +116,6 @@ namespace Ryujinx.Ava
         public string ApplicationPath     { get; private set; }
         public bool   ScreenshotRequested { get; set; }
 
-
         public AppHost(
             RendererHost           renderer,
             InputManager           inputManager,
@@ -144,11 +142,12 @@ namespace Ryujinx.Ava
 
             NpadManager        = _inputManager.CreateNpadManager();
             TouchScreenManager = _inputManager.CreateTouchScreenManager();
-            Renderer           = renderer;
             ApplicationPath    = applicationPath;
             VirtualFileSystem  = virtualFileSystem;
             ContentManager     = contentManager;
 
+            _rendererHost = renderer;
+
             _chrono        = new Stopwatch();
             _ticksPerFrame = Stopwatch.Frequency / TargetFps;
 
@@ -183,10 +182,10 @@ namespace Ryujinx.Ava
             {
                 _lastCursorMoveTime = Stopwatch.GetTimestamp();
 
-                if ((Renderer.Content as EmbeddedWindow).TransformedBounds != null)
+                if (_rendererHost.EmbeddedWindow.TransformedBounds != null)
                 {
                     var point  = e.GetCurrentPoint(window).Position;
-                    var bounds = (Renderer.Content as EmbeddedWindow).TransformedBounds.Value.Clip;
+                    var bounds = _rendererHost.EmbeddedWindow.TransformedBounds.Value.Clip;
 
                     _isCursorInRenderer = point.X >= bounds.X &&
                                           point.X <= bounds.Width + bounds.X &&
@@ -318,7 +317,7 @@ namespace Ryujinx.Ava
 
             _viewModel.SetUIProgressHandlers(Device);
 
-            Renderer.SizeChanged += Window_SizeChanged;
+            _rendererHost.SizeChanged += Window_SizeChanged;
 
             _isActive = true;
 
@@ -430,11 +429,11 @@ namespace Ryujinx.Ava
                 _windowsMultimediaTimerResolution = null;
             }
 
-            Renderer?.MakeCurrent();
+            (_rendererHost.EmbeddedWindow as EmbeddedWindowOpenGL)?.MakeCurrent();
 
             Device.DisposeGpu();
 
-            Renderer?.MakeCurrent(null);
+            (_rendererHost.EmbeddedWindow as EmbeddedWindowOpenGL)?.MakeCurrent(null);
         }
 
         private void HideCursorState_Changed(object sender, ReactiveEventArgs<bool> state)
@@ -635,11 +634,12 @@ namespace Ryujinx.Ava
             // Initialize Renderer.
             IRenderer renderer;
 
-            if (Renderer.IsVulkan)
+            if (ConfigurationState.Instance.Graphics.GraphicsBackend.Value == GraphicsBackend.Vulkan)
             {
-                string preferredGpu = ConfigurationState.Instance.Graphics.PreferredGpu.Value;
+                renderer = new VulkanRenderer(
-
+                    (_rendererHost.EmbeddedWindow as EmbeddedWindowVulkan).CreateSurface,
-                renderer = new VulkanRenderer(Renderer.CreateVulkanSurface, VulkanHelper.GetRequiredInstanceExtensions, preferredGpu);
+                    VulkanHelper.GetRequiredInstanceExtensions,
+                    ConfigurationState.Instance.Graphics.PreferredGpu.Value);
             }
             else
             {
@@ -787,14 +787,12 @@ namespace Ryujinx.Ava
 
             _renderer.ScreenCaptured += Renderer_ScreenCaptured;
 
-            (_renderer as OpenGLRenderer)?.InitializeBackgroundContext(SPBOpenGLContext.CreateBackgroundContext(Renderer.GetContext()));
+            (_rendererHost.EmbeddedWindow as EmbeddedWindowOpenGL)?.InitializeBackgroundContext(_renderer);
-
-            Renderer.MakeCurrent();
 
             Device.Gpu.Renderer.Initialize(_glLogLevel);
 
-            Width = (int)Renderer.Bounds.Width;
+            Width = (int)_rendererHost.Bounds.Width;
-            Height = (int)Renderer.Bounds.Height;
+            Height = (int)_rendererHost.Bounds.Height;
 
             _renderer.Window.SetSize((int)(Width * _topLevel.PlatformImpl.RenderScaling), (int)(Height * _topLevel.PlatformImpl.RenderScaling));
 
@@ -827,7 +825,7 @@ namespace Ryujinx.Ava
                             _viewModel.SwitchToRenderer(false);
                         }
 
-                        Device.PresentFrame(() => Renderer?.SwapBuffers());
+                        Device.PresentFrame(() => (_rendererHost.EmbeddedWindow as EmbeddedWindowOpenGL)?.SwapBuffers());
                     }
 
                     if (_ticks >= _ticksPerFrame)
@@ -837,7 +835,7 @@ namespace Ryujinx.Ava
                 }
             });
 
-            Renderer?.MakeCurrent(null);
+            (_rendererHost.EmbeddedWindow as EmbeddedWindowOpenGL)?.MakeCurrent(null);
         }
 
         public void UpdateStatus()
@@ -853,7 +851,7 @@ namespace Ryujinx.Ava
             StatusUpdatedEvent?.Invoke(this, new StatusUpdatedEventArgs(
                 Device.EnableDeviceVsync,
                 LocaleManager.Instance[LocaleKeys.VolumeShort] + $": {(int)(Device.GetVolume() * 100)}%",
-                Renderer.IsVulkan ? "Vulkan" : "OpenGL",
+                ConfigurationState.Instance.Graphics.GraphicsBackend.Value == GraphicsBackend.Vulkan ? "Vulkan" : "OpenGL",
                 dockedMode,
                 ConfigurationState.Instance.Graphics.AspectRatio.Value.ToText(),
                 LocaleManager.Instance[LocaleKeys.Game] + $": {Device.Statistics.GetGameFrameRate():00.00} FPS ({Device.Statistics.GetGameFrameTime():00.00} ms)",

Ryujinx.Ava/Assets/Locales/en_US.json

@@ -524,7 +524,7 @@
   "UserErrorUndefinedDescription": "An undefined error occured! This shouldn't happen, please contact a dev!",
   "OpenSetupGuideMessage": "Open the Setup Guide",
   "NoUpdate": "No Update",
-  "TitleUpdateVersionLabel": "Version {0} - {1}",
+  "TitleUpdateVersionLabel": "Version {0}",
   "RyujinxInfo": "Ryujinx - Info",
   "RyujinxConfirm": "Ryujinx - Confirmation",
   "FileDialogAllTypes": "All types",
@@ -585,7 +585,7 @@
   "UserProfilesSetProfileImage": "Set Profile Image",
   "UserProfileEmptyNameError": "Name is required",
   "UserProfileNoImageError": "Profile image must be set",
-  "GameUpdateWindowHeading": "{0} Update(s) available for {1} ({2})",
+  "GameUpdateWindowHeading": "Manage Updates for {0} ({1})",
   "SettingsTabHotkeysResScaleUpHotkey": "Increase resolution:",
   "SettingsTabHotkeysResScaleDownHotkey": "Decrease resolution:",
   "UserProfilesName": "Name:",

Ryujinx.Ava/UI/Applet/AvaloniaDynamicTextInputHandler.cs

@@ -136,7 +136,7 @@ namespace Ryujinx.Ava.UI.Applet
             Dispatcher.UIThread.Post(() =>
             {
                 _hiddenTextBox.Clear();
-                _parent.ViewModel.RendererControl.Focus();
+                _parent.ViewModel.RendererHostControl.Focus();
 
                 _parent = null;
             });

Ryujinx.Ava/UI/Controls/GameListView.axaml

@@ -3,14 +3,14 @@
     xmlns="https://github.com/avaloniaui"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:helpers="clr-namespace:Ryujinx.Ava.UI.Helpers"
     xmlns:locale="clr-namespace:Ryujinx.Ava.Common.Locale"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     xmlns:ui="clr-namespace:FluentAvalonia.UI.Controls;assembly=FluentAvalonia"
-    xmlns:helpers="clr-namespace:Ryujinx.Ava.UI.Helpers"
     d:DesignHeight="450"
     d:DesignWidth="800"
-    mc:Ignorable="d"
+    Focusable="True"
-    Focusable="True">
+    mc:Ignorable="d">
     <UserControl.Resources>
         <helpers:BitmapArrayValueConverter x:Key="ByteImage" />
         <MenuFlyout x:Key="GameContextMenu" Opened="MenuBase_OnMenuOpened">
@@ -130,7 +130,8 @@
                                     <ColumnDefinition Width="Auto" />
                                     <ColumnDefinition Width="10" />
                                     <ColumnDefinition Width="*" />
-                                    <ColumnDefinition Width="Auto" />
+                                    <ColumnDefinition Width="150" />
+                                    <ColumnDefinition Width="100" />
                                 </Grid.ColumnDefinitions>
                                 <Image
                                     Grid.RowSpan="3"
@@ -141,30 +142,54 @@
                                     Classes.normal="{Binding $parent[UserControl].DataContext.IsGridMedium}"
                                     Classes.small="{Binding $parent[UserControl].DataContext.IsGridSmall}"
                                     Source="{Binding Icon, Converter={StaticResource ByteImage}}" />
-                                <StackPanel
+                                <Border
                                     Grid.Column="2"
+                                    Margin="0,0,5,0"
+                                    BorderBrush="{DynamicResource ThemeControlBorderColor}"
+                                    BorderThickness="0,0,1,0">
+                                    <StackPanel
+                                        HorizontalAlignment="Left"
+                                        VerticalAlignment="Top"
+                                        Orientation="Vertical"
+                                        Spacing="5">
+                                        <TextBlock
+                                            HorizontalAlignment="Stretch"
+                                            FontWeight="Bold"
+                                            Text="{Binding TitleName}"
+                                            TextAlignment="Left"
+                                            TextWrapping="Wrap" />
+                                        <TextBlock
+                                            HorizontalAlignment="Stretch"
+                                            Text="{Binding Developer}"
+                                            TextAlignment="Left"
+                                            TextWrapping="Wrap" />
+                                        <TextBlock
+                                            HorizontalAlignment="Stretch"
+                                            Text="{Binding Version}"
+                                            TextAlignment="Left"
+                                            TextWrapping="Wrap" />
+                                    </StackPanel>
+                                </Border>
+                                <StackPanel
+                                    Grid.Column="3"
+                                    Margin="10,0,0,0"
                                     HorizontalAlignment="Left"
                                     VerticalAlignment="Top"
                                     Orientation="Vertical"
-                                    Spacing="5" >
+                                    Spacing="5">
                                     <TextBlock
                                         HorizontalAlignment="Stretch"
-                                        Text="{Binding TitleName}"
+                                        Text="{Binding TitleId}"
                                         TextAlignment="Left"
                                         TextWrapping="Wrap" />
                                     <TextBlock
                                         HorizontalAlignment="Stretch"
-                                        Text="{Binding Developer}"
+                                        Text="{Binding FileExtension}"
-                                        TextAlignment="Left"
-                                        TextWrapping="Wrap" />
-                                    <TextBlock
-                                        HorizontalAlignment="Stretch"
-                                        Text="{Binding Version}"
                                         TextAlignment="Left"
                                         TextWrapping="Wrap" />
                                 </StackPanel>
                                 <StackPanel
-                                    Grid.Column="3"
+                                    Grid.Column="4"
                                     HorizontalAlignment="Right"
                                     VerticalAlignment="Top"
                                     Orientation="Vertical"

Ryujinx.Ava/UI/Controls/RendererHost.axaml.cs

@@ -1,127 +0,0 @@
-using Avalonia;
-using Avalonia.Controls;
-using Avalonia.Markup.Xaml;
-using Ryujinx.Ava.UI.Helpers;
-using Ryujinx.Common.Configuration;
-using Silk.NET.Vulkan;
-using SPB.Graphics.OpenGL;
-using SPB.Windowing;
-using System;
-
-namespace Ryujinx.Ava.UI.Controls
-{
-    public partial class RendererHost : UserControl, IDisposable
-    {
-        private readonly GraphicsDebugLevel _graphicsDebugLevel;
-        private EmbeddedWindow _currentWindow;
-
-        public bool IsVulkan { get; private set; }
-
-        public RendererHost(GraphicsDebugLevel graphicsDebugLevel)
-        {
-            _graphicsDebugLevel = graphicsDebugLevel;
-            InitializeComponent();
-        }
-
-        public RendererHost()
-        {
-            InitializeComponent();
-        }
-
-        public void CreateOpenGL()
-        {
-            Dispose();
-
-            _currentWindow = new OpenGLEmbeddedWindow(3, 3, _graphicsDebugLevel);
-            Initialize();
-
-            IsVulkan = false;
-        }
-
-        private void Initialize()
-        {
-            _currentWindow.WindowCreated += CurrentWindow_WindowCreated;
-            _currentWindow.SizeChanged += CurrentWindow_SizeChanged;
-            Content = _currentWindow;
-        }
-
-        public void CreateVulkan()
-        {
-            Dispose();
-
-            _currentWindow = new VulkanEmbeddedWindow();
-            Initialize();
-
-            IsVulkan = true;
-        }
-
-        public OpenGLContextBase GetContext()
-        {
-            if (_currentWindow is OpenGLEmbeddedWindow openGlEmbeddedWindow)
-            {
-                return openGlEmbeddedWindow.Context;
-            }
-
-            return null;
-        }
-
-        protected override void OnDetachedFromVisualTree(VisualTreeAttachmentEventArgs e)
-        {
-            base.OnDetachedFromVisualTree(e);
-
-            Dispose();
-        }
-
-        private void CurrentWindow_SizeChanged(object sender, Size e)
-        {
-            SizeChanged?.Invoke(sender, e);
-        }
-
-        private void CurrentWindow_WindowCreated(object sender, IntPtr e)
-        {
-            RendererInitialized?.Invoke(this, EventArgs.Empty);
-        }
-
-        public void MakeCurrent()
-        {
-            if (_currentWindow is OpenGLEmbeddedWindow openGlEmbeddedWindow)
-            {
-                openGlEmbeddedWindow.MakeCurrent();
-            }
-        }
-
-        public void MakeCurrent(SwappableNativeWindowBase window)
-        {
-            if (_currentWindow is OpenGLEmbeddedWindow openGlEmbeddedWindow)
-            {
-                openGlEmbeddedWindow.MakeCurrent(window);
-            }
-        }
-
-        public void SwapBuffers()
-        {
-            if (_currentWindow is OpenGLEmbeddedWindow openGlEmbeddedWindow)
-            {
-                openGlEmbeddedWindow.SwapBuffers();
-            }
-        }
-
-        public event EventHandler<EventArgs> RendererInitialized;
-        public event Action<object, Size> SizeChanged;
-        public void Dispose()
-        {
-            if (_currentWindow != null)
-            {
-                _currentWindow.WindowCreated -= CurrentWindow_WindowCreated;
-                _currentWindow.SizeChanged -= CurrentWindow_SizeChanged;
-            }
-        }
-
-        public SurfaceKHR CreateVulkanSurface(Instance instance, Vk api)
-        {
-            return (_currentWindow is VulkanEmbeddedWindow vulkanEmbeddedWindow)
-                ? vulkanEmbeddedWindow.CreateSurface(instance)
-                : default;
-        }
-    }
-}

Ryujinx.Ava/UI/Helpers/AvaloniaGlxContext.cs

@@ -1,16 +0,0 @@
-using SPB.Graphics;
-using System;
-using System.Runtime.Versioning;
-
-namespace Ryujinx.Ava.UI.Helpers
-{
-    [SupportedOSPlatform("linux")]
-    internal class AvaloniaGlxContext : SPB.Platform.GLX.GLXOpenGLContext
-    {
-        public AvaloniaGlxContext(IntPtr handle)
-            : base(FramebufferFormat.Default, 0, 0, 0, false, null)
-        {
-            ContextHandle = handle;
-        }
-    }
-}

Ryujinx.Ava/UI/Helpers/AvaloniaWglContext.cs

@@ -1,16 +0,0 @@
-using SPB.Graphics;
-using System;
-using System.Runtime.Versioning;
-
-namespace Ryujinx.Ava.UI.Helpers
-{
-    [SupportedOSPlatform("windows")]
-    internal class AvaloniaWglContext : SPB.Platform.WGL.WGLOpenGLContext
-    {
-        public AvaloniaWglContext(IntPtr handle)
-            : base(FramebufferFormat.Default, 0, 0, 0, false, null)
-        {
-            ContextHandle = handle;
-        }
-    }
-}

Ryujinx.Ava/UI/Helpers/EmbeddedWindow.cs

@@ -1,235 +0,0 @@
-using Avalonia;
-using Avalonia.Controls;
-using Avalonia.Input;
-using Avalonia.Platform;
-using SPB.Graphics;
-using SPB.Platform;
-using SPB.Platform.GLX;
-using System;
-using System.Runtime.InteropServices;
-using System.Runtime.Versioning;
-using System.Threading.Tasks;
-using static Ryujinx.Ava.UI.Helpers.Win32NativeInterop;
-
-namespace Ryujinx.Ava.UI.Helpers
-{
-    public class EmbeddedWindow : NativeControlHost
-    {
-        private WindowProc _wndProcDelegate;
-        private string _className;
-
-        protected GLXWindow X11Window { get; set; }
-        protected IntPtr WindowHandle { get; set; }
-        protected IntPtr X11Display { get; set; }
-        protected IntPtr NsView { get; set; }
-        protected IntPtr MetalLayer { get; set; }
-
-        private UpdateBoundsCallbackDelegate _updateBoundsCallback;
-
-        public event EventHandler<IntPtr> WindowCreated;
-        public event EventHandler<Size> SizeChanged;
-
-        protected virtual void OnWindowDestroyed() { }
-        protected virtual void OnWindowDestroying()
-        {
-            WindowHandle = IntPtr.Zero;
-            X11Display = IntPtr.Zero;
-            NsView = IntPtr.Zero;
-            MetalLayer = IntPtr.Zero;
-        }
-
-        public EmbeddedWindow()
-        {
-            var stateObserverable = this.GetObservable(BoundsProperty);
-
-            stateObserverable.Subscribe(StateChanged);
-
-            Initialized += NativeEmbeddedWindow_Initialized;
-        }
-
-        public virtual void OnWindowCreated() { }
-
-        private void NativeEmbeddedWindow_Initialized(object sender, EventArgs e)
-        {
-            OnWindowCreated();
-
-            Task.Run(() =>
-            {
-                WindowCreated?.Invoke(this, WindowHandle);
-            });
-        }
-
-        private void StateChanged(Rect rect)
-        {
-            SizeChanged?.Invoke(this, rect.Size);
-            _updateBoundsCallback?.Invoke(rect);
-        }
-
-        protected override IPlatformHandle CreateNativeControlCore(IPlatformHandle parent)
-        {
-            if (OperatingSystem.IsLinux())
-            {
-                return CreateLinux(parent);
-            }
-            else if (OperatingSystem.IsWindows())
-            {
-                return CreateWin32(parent);
-            }
-            else if (OperatingSystem.IsMacOS())
-            {
-                return CreateMacOs(parent);
-            }
-
-            return base.CreateNativeControlCore(parent);
-        }
-
-        protected override void DestroyNativeControlCore(IPlatformHandle control)
-        {
-            OnWindowDestroying();
-
-            if (OperatingSystem.IsLinux())
-            {
-                DestroyLinux();
-            }
-            else if (OperatingSystem.IsWindows())
-            {
-                DestroyWin32(control);
-            }
-            else if (OperatingSystem.IsMacOS())
-            {
-                DestroyMacOS();
-            }
-            else
-            {
-                base.DestroyNativeControlCore(control);
-            }
-
-            OnWindowDestroyed();
-        }
-
-        [SupportedOSPlatform("linux")]
-        protected virtual IPlatformHandle CreateLinux(IPlatformHandle parent)
-        {
-            X11Window    = PlatformHelper.CreateOpenGLWindow(FramebufferFormat.Default, 0, 0, 100, 100) as GLXWindow;
-            WindowHandle = X11Window.WindowHandle.RawHandle;
-            X11Display   = X11Window.DisplayHandle.RawHandle;
-
-            return new PlatformHandle(WindowHandle, "X11");
-        }
-
-        [SupportedOSPlatform("windows")]
-        IPlatformHandle CreateWin32(IPlatformHandle parent)
-        {
-            _className = "NativeWindow-" + Guid.NewGuid();
-            _wndProcDelegate = WndProc;
-            var wndClassEx = new WNDCLASSEX
-            {
-                cbSize = Marshal.SizeOf<WNDCLASSEX>(),
-                hInstance = GetModuleHandle(null),
-                lpfnWndProc = Marshal.GetFunctionPointerForDelegate(_wndProcDelegate),
-                style = ClassStyles.CS_OWNDC,
-                lpszClassName = Marshal.StringToHGlobalUni(_className),
-                hCursor = CreateArrowCursor()
-            };
-
-            var atom = RegisterClassEx(ref wndClassEx);
-
-            var handle = CreateWindowEx(
-                0,
-                _className,
-                "NativeWindow",
-                WindowStyles.WS_CHILD,
-                0,
-                0,
-                640,
-                480,
-                parent.Handle,
-                IntPtr.Zero,
-                IntPtr.Zero,
-                IntPtr.Zero);
-
-            WindowHandle = handle;
-
-            Marshal.FreeHGlobal(wndClassEx.lpszClassName);
-
-            return new PlatformHandle(WindowHandle, "HWND");
-        }
-
-        [SupportedOSPlatform("windows")]
-        IntPtr WndProc(IntPtr hWnd, WindowsMessages msg, IntPtr wParam, IntPtr lParam)
-        {
-            var point = new Point((long)lParam & 0xFFFF, ((long)lParam >> 16) & 0xFFFF);
-            var root = VisualRoot as Window;
-            bool isLeft = false;
-            switch (msg)
-            {
-                case WindowsMessages.LBUTTONDOWN:
-                case WindowsMessages.RBUTTONDOWN:
-                    isLeft = msg == WindowsMessages.LBUTTONDOWN;
-                    this.RaiseEvent(new PointerPressedEventArgs(
-                        this,
-                        new Pointer(0, PointerType.Mouse, true),
-                        root,
-                        this.TranslatePoint(point, root).Value,
-                        (ulong)Environment.TickCount64,
-                        new PointerPointProperties(isLeft ? RawInputModifiers.LeftMouseButton : RawInputModifiers.RightMouseButton, isLeft ? PointerUpdateKind.LeftButtonPressed : PointerUpdateKind.RightButtonPressed),
-                        KeyModifiers.None));
-                    break;
-                case WindowsMessages.LBUTTONUP:
-                case WindowsMessages.RBUTTONUP:
-                    isLeft = msg == WindowsMessages.LBUTTONUP;
-                    this.RaiseEvent(new PointerReleasedEventArgs(
-                        this,
-                        new Pointer(0, PointerType.Mouse, true),
-                        root,
-                        this.TranslatePoint(point, root).Value,
-                        (ulong)Environment.TickCount64,
-                        new PointerPointProperties(isLeft ? RawInputModifiers.LeftMouseButton : RawInputModifiers.RightMouseButton, isLeft ? PointerUpdateKind.LeftButtonReleased : PointerUpdateKind.RightButtonReleased),
-                        KeyModifiers.None,
-                        isLeft ? MouseButton.Left : MouseButton.Right));
-                    break;
-                case WindowsMessages.MOUSEMOVE:
-                    this.RaiseEvent(new PointerEventArgs(
-                        PointerMovedEvent,
-                        this,
-                        new Pointer(0, PointerType.Mouse, true),
-                        root,
-                        this.TranslatePoint(point, root).Value,
-                        (ulong)Environment.TickCount64,
-                        new PointerPointProperties(RawInputModifiers.None, PointerUpdateKind.Other),
-                        KeyModifiers.None));
-                    break;
-            }
-
-            return DefWindowProc(hWnd, msg, wParam, lParam);
-        }
-
-        [SupportedOSPlatform("macos")]
-        IPlatformHandle CreateMacOs(IPlatformHandle parent)
-        {
-            MetalLayer = MetalHelper.GetMetalLayer(out IntPtr nsView, out _updateBoundsCallback);
-
-            NsView = nsView;
-
-            return new PlatformHandle(nsView, "NSView");
-        }
-
-        void DestroyLinux()
-        {
-            X11Window?.Dispose();
-        }
-
-        [SupportedOSPlatform("windows")]
-        void DestroyWin32(IPlatformHandle handle)
-        {
-            DestroyWindow(handle.Handle);
-            UnregisterClass(_className, GetModuleHandle(null));
-        }
-
-        [SupportedOSPlatform("macos")]
-        void DestroyMacOS()
-        {
-            MetalHelper.DestroyMetalLayer(NsView, MetalLayer);
-        }
-    }
-}

Ryujinx.Ava/UI/Helpers/IGlContextExtension.cs

@@ -1,25 +0,0 @@
-using Avalonia.OpenGL;
-using SPB.Graphics.OpenGL;
-using System;
-
-namespace Ryujinx.Ava.UI.Helpers
-{
-    internal static class IGlContextExtension
-    {
-        public static OpenGLContextBase AsOpenGLContextBase(this IGlContext context)
-        {
-            var handle = (IntPtr)context.GetType().GetProperty("Handle").GetValue(context);
-
-            if (OperatingSystem.IsWindows())
-            {
-                return new AvaloniaWglContext(handle);
-            }
-            else if (OperatingSystem.IsLinux())
-            {
-                return new AvaloniaGlxContext(handle);
-            }
-
-            return null;
-        }
-    }
-}

Ryujinx.Ava/UI/Helpers/VulkanEmbeddedWindow.cs

@@ -1,52 +0,0 @@
-using Avalonia.Platform;
-using Silk.NET.Vulkan;
-using SPB.Graphics.Vulkan;
-using SPB.Platform.GLX;
-using SPB.Platform.Metal;
-using SPB.Platform.Win32;
-using SPB.Platform.X11;
-using SPB.Windowing;
-using System;
-using System.Runtime.Versioning;
-
-namespace Ryujinx.Ava.UI.Helpers
-{
-    public class VulkanEmbeddedWindow : EmbeddedWindow
-    {
-        private NativeWindowBase _window;
-
-        [SupportedOSPlatform("linux")]
-        protected override IPlatformHandle CreateLinux(IPlatformHandle parent)
-        {
-            X11Window    = new GLXWindow(new NativeHandle(X11.DefaultDisplay), new NativeHandle(parent.Handle));
-            WindowHandle = X11Window.WindowHandle.RawHandle;
-            X11Display   = X11Window.DisplayHandle.RawHandle;
-
-            X11Window.Hide();
-
-            return new PlatformHandle(WindowHandle, "X11");
-        }
-
-        public SurfaceKHR CreateSurface(Instance instance)
-        {
-            if (OperatingSystem.IsWindows())
-            {
-                _window = new SimpleWin32Window(new NativeHandle(WindowHandle));
-            }
-            else if (OperatingSystem.IsLinux())
-            {
-                _window = new SimpleX11Window(new NativeHandle(X11Display), new NativeHandle(WindowHandle));
-            }
-            else if (OperatingSystem.IsMacOS())
-            {
-                _window = new SimpleMetalWindow(new NativeHandle(NsView), new NativeHandle(MetalLayer));
-            }
-            else
-            {
-                throw new PlatformNotSupportedException();
-            }
-
-            return new SurfaceKHR((ulong?)VulkanHelper.CreateWindowSurface(instance.Handle, _window));
-        }
-    }
-}

Ryujinx.Ava/UI/Models/TitleUpdateModel.cs

@@ -3,23 +3,17 @@ using Ryujinx.Ava.Common.Locale;
 
 namespace Ryujinx.Ava.UI.Models
 {
-    internal class TitleUpdateModel
+    public class TitleUpdateModel
     {
-        public bool IsEnabled { get; set; }
-        public bool IsNoUpdate { get; }
         public ApplicationControlProperty Control { get; }
         public string Path { get; }
 
-        public string Label => IsNoUpdate
+        public string Label => string.Format(LocaleManager.Instance[LocaleKeys.TitleUpdateVersionLabel], Control.DisplayVersionString.ToString());
-            ? LocaleManager.Instance[LocaleKeys.NoUpdate]
-            : string.Format(LocaleManager.Instance[LocaleKeys.TitleUpdateVersionLabel], Control.DisplayVersionString.ToString(),
-                Path);
 
-        public TitleUpdateModel(ApplicationControlProperty control, string path, bool isNoUpdate = false)
+        public TitleUpdateModel(ApplicationControlProperty control, string path)
         {
             Control = control;
             Path = path;
-            IsNoUpdate = isNoUpdate;
         }
     }
 }

Ryujinx.Ava/UI/Renderer/EmbeddedWindow.cs

@@ -0,0 +1,259 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Platform;
+using Ryujinx.Ava.UI.Helpers;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Ui.Common.Configuration;
+using SPB.Graphics;
+using SPB.Platform;
+using SPB.Platform.GLX;
+using SPB.Platform.X11;
+using SPB.Windowing;
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
+using System.Threading.Tasks;
+using static Ryujinx.Ava.UI.Helpers.Win32NativeInterop;
+
+namespace Ryujinx.Ava.UI.Renderer
+{
+    public class EmbeddedWindow : NativeControlHost
+    {
+        private WindowProc _wndProcDelegate;
+        private string     _className;
+
+        protected GLXWindow X11Window { get; set; }
+
+        protected IntPtr WindowHandle { get; set; }
+        protected IntPtr X11Display   { get; set; }
+        protected IntPtr NsView       { get; set; }
+        protected IntPtr MetalLayer   { get; set; }
+
+        private UpdateBoundsCallbackDelegate _updateBoundsCallback;
+
+        public event EventHandler<IntPtr> WindowCreated;
+        public event EventHandler<Size>   SizeChanged;
+
+        public EmbeddedWindow()
+        {
+            this.GetObservable(BoundsProperty).Subscribe(StateChanged);
+
+            Initialized += OnNativeEmbeddedWindowCreated;
+        }
+
+        public virtual void OnWindowCreated() { }
+
+        protected virtual void OnWindowDestroyed() { }
+
+        protected virtual void OnWindowDestroying()
+        {
+            WindowHandle = IntPtr.Zero;
+            X11Display   = IntPtr.Zero;
+            NsView       = IntPtr.Zero;
+            MetalLayer   = IntPtr.Zero;
+        }
+
+        private void OnNativeEmbeddedWindowCreated(object sender, EventArgs e)
+        {
+            OnWindowCreated();
+
+            Task.Run(() =>
+            {
+                WindowCreated?.Invoke(this, WindowHandle);
+            });
+        }
+
+        private void StateChanged(Rect rect)
+        {
+            SizeChanged?.Invoke(this, rect.Size);
+            _updateBoundsCallback?.Invoke(rect);
+        }
+
+        protected override IPlatformHandle CreateNativeControlCore(IPlatformHandle control)
+        {
+            if (OperatingSystem.IsLinux())
+            {
+                return CreateLinux(control);
+            }
+            else if (OperatingSystem.IsWindows())
+            {
+                return CreateWin32(control);
+            }
+            else if (OperatingSystem.IsMacOS())
+            {
+                return CreateMacOS();
+            }
+
+            return base.CreateNativeControlCore(control);
+        }
+
+        protected override void DestroyNativeControlCore(IPlatformHandle control)
+        {
+            OnWindowDestroying();
+
+            if (OperatingSystem.IsLinux())
+            {
+                DestroyLinux();
+            }
+            else if (OperatingSystem.IsWindows())
+            {
+                DestroyWin32(control);
+            }
+            else if (OperatingSystem.IsMacOS())
+            {
+                DestroyMacOS();
+            }
+            else
+            {
+                base.DestroyNativeControlCore(control);
+            }
+
+            OnWindowDestroyed();
+        }
+
+        [SupportedOSPlatform("linux")]
+        private IPlatformHandle CreateLinux(IPlatformHandle control)
+        {
+            if (ConfigurationState.Instance.Graphics.GraphicsBackend.Value == GraphicsBackend.Vulkan)
+            {
+                X11Window = new GLXWindow(new NativeHandle(X11.DefaultDisplay), new NativeHandle(control.Handle));
+                X11Window.Hide();
+            }
+            else
+            {
+                X11Window = PlatformHelper.CreateOpenGLWindow(FramebufferFormat.Default, 0, 0, 100, 100) as GLXWindow;
+            }
+
+            WindowHandle = X11Window.WindowHandle.RawHandle;
+            X11Display   = X11Window.DisplayHandle.RawHandle;
+
+            return new PlatformHandle(WindowHandle, "X11");
+        }
+
+        [SupportedOSPlatform("windows")]
+        IPlatformHandle CreateWin32(IPlatformHandle control)
+        {
+            _className = "NativeWindow-" + Guid.NewGuid();
+
+            _wndProcDelegate = delegate (IntPtr hWnd, WindowsMessages msg, IntPtr wParam, IntPtr lParam)
+            {
+                if (VisualRoot != null)
+                {
+                    Point   rootVisualPosition = this.TranslatePoint(new Point((long)lParam & 0xFFFF, (long)lParam >> 16 & 0xFFFF), VisualRoot).Value;
+                    Pointer pointer            = new(0, PointerType.Mouse, true);
+
+                    switch (msg)
+                    {
+                        case WindowsMessages.LBUTTONDOWN:
+                        case WindowsMessages.RBUTTONDOWN:
+                            {
+                                bool                   isLeft               = msg == WindowsMessages.LBUTTONDOWN;
+                                RawInputModifiers      pointerPointModifier = isLeft ? RawInputModifiers.LeftMouseButton : RawInputModifiers.RightMouseButton;
+                                PointerPointProperties properties           = new(pointerPointModifier, isLeft ? PointerUpdateKind.LeftButtonPressed : PointerUpdateKind.RightButtonPressed);
+
+                                var evnt = new PointerPressedEventArgs(
+                                    this,
+                                    pointer,
+                                    VisualRoot,
+                                    rootVisualPosition,
+                                    (ulong)Environment.TickCount64,
+                                    properties,
+                                    KeyModifiers.None);
+
+                                RaiseEvent(evnt);
+
+                                break;
+                            }
+                        case WindowsMessages.LBUTTONUP:
+                        case WindowsMessages.RBUTTONUP:
+                            {
+                                bool                   isLeft               = msg == WindowsMessages.LBUTTONUP;
+                                RawInputModifiers      pointerPointModifier = isLeft ? RawInputModifiers.LeftMouseButton : RawInputModifiers.RightMouseButton;
+                                PointerPointProperties properties           = new(pointerPointModifier, isLeft ? PointerUpdateKind.LeftButtonReleased : PointerUpdateKind.RightButtonReleased);
+
+                                var evnt = new PointerReleasedEventArgs(
+                                    this,
+                                    pointer,
+                                    VisualRoot,
+                                    rootVisualPosition,
+                                    (ulong)Environment.TickCount64,
+                                    properties,
+                                    KeyModifiers.None,
+                                    isLeft ? MouseButton.Left : MouseButton.Right);
+
+                                RaiseEvent(evnt);
+
+                                break;
+                            }
+                        case WindowsMessages.MOUSEMOVE:
+                            {
+                                var evnt = new PointerEventArgs(
+                                    PointerMovedEvent,
+                                    this,
+                                    pointer,
+                                    VisualRoot,
+                                    rootVisualPosition,
+                                    (ulong)Environment.TickCount64,
+                                    new PointerPointProperties(RawInputModifiers.None, PointerUpdateKind.Other),
+                                    KeyModifiers.None);
+
+                                RaiseEvent(evnt);
+
+                                break;
+                            }
+                    }
+                }
+
+                return DefWindowProc(hWnd, msg, wParam, lParam);
+            };
+
+            WNDCLASSEX wndClassEx = new()
+            {
+                cbSize        = Marshal.SizeOf<WNDCLASSEX>(),
+                hInstance     = GetModuleHandle(null),
+                lpfnWndProc   = Marshal.GetFunctionPointerForDelegate(_wndProcDelegate),
+                style         = ClassStyles.CS_OWNDC,
+                lpszClassName = Marshal.StringToHGlobalUni(_className),
+                hCursor       = CreateArrowCursor()
+            };
+
+            RegisterClassEx(ref wndClassEx);
+
+            WindowHandle = CreateWindowEx(0, _className, "NativeWindow", WindowStyles.WS_CHILD, 0, 0, 640, 480, control.Handle, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
+
+            Marshal.FreeHGlobal(wndClassEx.lpszClassName);
+
+            return new PlatformHandle(WindowHandle, "HWND");
+        }
+
+        [SupportedOSPlatform("macos")]
+        IPlatformHandle CreateMacOS()
+        {
+            MetalLayer = MetalHelper.GetMetalLayer(out IntPtr nsView, out _updateBoundsCallback);
+
+            NsView = nsView;
+
+            return new PlatformHandle(nsView, "NSView");
+        }
+
+        [SupportedOSPlatform("Linux")]
+        void DestroyLinux()
+        {
+            X11Window?.Dispose();
+        }
+
+        [SupportedOSPlatform("windows")]
+        void DestroyWin32(IPlatformHandle handle)
+        {
+            DestroyWindow(handle.Handle);
+            UnregisterClass(_className, GetModuleHandle(null));
+        }
+
+        [SupportedOSPlatform("macos")]
+        void DestroyMacOS()
+        {
+            MetalHelper.DestroyMetalLayer(NsView, MetalLayer);
+        }
+    }
+}

Ryujinx.Ava/UI/Renderer/EmbeddedWindowOpenGL.cs

@@ -1,5 +1,8 @@
 using OpenTK.Graphics.OpenGL;
 using Ryujinx.Common.Configuration;
+using Ryujinx.Graphics.GAL;
+using Ryujinx.Graphics.OpenGL;
+using Ryujinx.Ui.Common.Configuration;
 using SPB.Graphics;
 using SPB.Graphics.OpenGL;
 using SPB.Platform;
@@ -7,26 +10,20 @@ using SPB.Platform.WGL;
 using SPB.Windowing;
 using System;
 
-namespace Ryujinx.Ava.UI.Helpers
+namespace Ryujinx.Ava.UI.Renderer
 {
-    public class OpenGLEmbeddedWindow : EmbeddedWindow
+    public class EmbeddedWindowOpenGL : EmbeddedWindow
     {
-        private readonly int _major;
-        private readonly int _minor;
-        private readonly GraphicsDebugLevel _graphicsDebugLevel;
         private SwappableNativeWindowBase _window;
+
         public OpenGLContextBase Context { get; set; }
 
-        public OpenGLEmbeddedWindow(int major, int minor, GraphicsDebugLevel graphicsDebugLevel)
+        public EmbeddedWindowOpenGL() { }
-        {
-            _major = major;
-            _minor = minor;
-            _graphicsDebugLevel = graphicsDebugLevel;
-        }
 
         protected override void OnWindowDestroying()
         {
             Context.Dispose();
+
             base.OnWindowDestroying();
         }
 
@@ -48,19 +45,20 @@ namespace Ryujinx.Ava.UI.Helpers
             }
 
             var flags = OpenGLContextFlags.Compat;
-            if (_graphicsDebugLevel != GraphicsDebugLevel.None)
+            if (ConfigurationState.Instance.Logger.GraphicsDebugLevel != GraphicsDebugLevel.None)
             {
                 flags |= OpenGLContextFlags.Debug;
             }
 
-            Context = PlatformHelper.CreateOpenGLContext(FramebufferFormat.Default, _major, _minor, flags);
+            var graphicsMode = Environment.OSVersion.Platform == PlatformID.Unix ? new FramebufferFormat(new ColorFormat(8, 8, 8, 0), 16, 0, ColorFormat.Zero, 0, 2, false) : FramebufferFormat.Default;
+
+            Context = PlatformHelper.CreateOpenGLContext(graphicsMode, 3, 3, flags);
 
             Context.Initialize(_window);
             Context.MakeCurrent(_window);
 
-            var bindingsContext = new OpenToolkitBindingsContext(Context.GetProcAddress);
+            GL.LoadBindings(new OpenTKBindingsContext(Context.GetProcAddress));
 
-            GL.LoadBindings(bindingsContext);
             Context.MakeCurrent(null);
         }
 
@@ -76,7 +74,14 @@ namespace Ryujinx.Ava.UI.Helpers
 
         public void SwapBuffers()
         {
-            _window.SwapBuffers();
+            _window?.SwapBuffers();
+        }
+
+        public void InitializeBackgroundContext(IRenderer renderer)
+        {
+            (renderer as OpenGLRenderer)?.InitializeBackgroundContext(SPBOpenGLContext.CreateBackgroundContext(Context));
+
+            MakeCurrent();
         }
     }
 }

Ryujinx.Ava/UI/Renderer/EmbeddedWindowVulkan.cs

@@ -0,0 +1,42 @@
+using Silk.NET.Vulkan;
+using SPB.Graphics.Vulkan;
+using SPB.Platform.Metal;
+using SPB.Platform.Win32;
+using SPB.Platform.X11;
+using SPB.Windowing;
+using System;
+
+namespace Ryujinx.Ava.UI.Renderer
+{
+    public class EmbeddedWindowVulkan : EmbeddedWindow
+    {
+        public SurfaceKHR CreateSurface(Instance instance)
+        {
+            NativeWindowBase nativeWindowBase;
+
+            if (OperatingSystem.IsWindows())
+            {
+                nativeWindowBase = new SimpleWin32Window(new NativeHandle(WindowHandle));
+            }
+            else if (OperatingSystem.IsLinux())
+            {
+                nativeWindowBase = new SimpleX11Window(new NativeHandle(X11Display), new NativeHandle(WindowHandle));
+            }
+            else if (OperatingSystem.IsMacOS())
+            {
+                nativeWindowBase = new SimpleMetalWindow(new NativeHandle(NsView), new NativeHandle(MetalLayer));
+            }
+            else
+            {
+                throw new PlatformNotSupportedException();
+            }
+
+            return new SurfaceKHR((ulong?)VulkanHelper.CreateWindowSurface(instance.Handle, nativeWindowBase));
+        }
+
+        public SurfaceKHR CreateSurface(Instance instance, Vk api)
+        {
+            return CreateSurface(instance);
+        }
+    }
+}

Ryujinx.Ava/UI/Renderer/OpenTKBindingsContext.cs

@@ -1,13 +1,13 @@
 using OpenTK;
 using System;
 
-namespace Ryujinx.Ava.UI.Helpers
+namespace Ryujinx.Ava.UI.Renderer
 {
-    internal class OpenToolkitBindingsContext : IBindingsContext
+    internal class OpenTKBindingsContext : IBindingsContext
     {
         private readonly Func<string, IntPtr> _getProcAddress;
 
-        public OpenToolkitBindingsContext(Func<string, IntPtr> getProcAddress)
+        public OpenTKBindingsContext(Func<string, IntPtr> getProcAddress)
         {
             _getProcAddress = getProcAddress;
         }

Ryujinx.Ava/UI/Renderer/RendererHost.axaml

@@ -6,6 +6,6 @@
     mc:Ignorable="d" 
     d:DesignWidth="800" 
     d:DesignHeight="450"
-    x:Class="Ryujinx.Ava.UI.Controls.RendererHost"
+    x:Class="Ryujinx.Ava.UI.Renderer.RendererHost"
     Focusable="True">
-</UserControl>
+</UserControl>

Ryujinx.Ava/UI/Renderer/RendererHost.axaml.cs

@@ -0,0 +1,68 @@
+using Avalonia;
+using Avalonia.Controls;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Ui.Common.Configuration;
+using System;
+
+namespace Ryujinx.Ava.UI.Renderer
+{
+    public partial class RendererHost : UserControl, IDisposable
+    {
+        public readonly EmbeddedWindow EmbeddedWindow;
+
+        public event EventHandler<EventArgs> WindowCreated;
+        public event Action<object, Size>    SizeChanged;
+
+        public RendererHost()
+        {
+            InitializeComponent();
+
+            if (ConfigurationState.Instance.Graphics.GraphicsBackend.Value == GraphicsBackend.OpenGl)
+            {
+                EmbeddedWindow = new EmbeddedWindowOpenGL();
+            }
+            else
+            {
+                EmbeddedWindow = new EmbeddedWindowVulkan();
+            }
+
+            Initialize();
+        }
+
+        private void Initialize()
+        {
+            EmbeddedWindow.WindowCreated += CurrentWindow_WindowCreated;
+            EmbeddedWindow.SizeChanged   += CurrentWindow_SizeChanged;
+
+            Content = EmbeddedWindow;
+        }
+
+        public void Dispose()
+        {
+            if (EmbeddedWindow != null)
+            {
+                EmbeddedWindow.WindowCreated -= CurrentWindow_WindowCreated;
+                EmbeddedWindow.SizeChanged   -= CurrentWindow_SizeChanged;
+            }
+
+            GC.SuppressFinalize(this);
+        }
+
+        protected override void OnDetachedFromVisualTree(VisualTreeAttachmentEventArgs e)
+        {
+            base.OnDetachedFromVisualTree(e);
+
+            Dispose();
+        }
+
+        private void CurrentWindow_SizeChanged(object sender, Size e)
+        {
+            SizeChanged?.Invoke(sender, e);
+        }
+
+        private void CurrentWindow_WindowCreated(object sender, IntPtr e)
+        {
+            WindowCreated?.Invoke(this, EventArgs.Empty);
+        }
+    }
+}

Ryujinx.Ava/UI/Renderer/SPBOpenGLContext.cs

@@ -5,17 +5,17 @@ using SPB.Graphics.OpenGL;
 using SPB.Platform;
 using SPB.Windowing;
 
-namespace Ryujinx.Ava.UI.Helpers
+namespace Ryujinx.Ava.UI.Renderer
 {
     class SPBOpenGLContext : IOpenGLContext
     {
-        private OpenGLContextBase _context;
+        private readonly OpenGLContextBase _context;
-        private NativeWindowBase _window;
+        private readonly NativeWindowBase  _window;
 
         private SPBOpenGLContext(OpenGLContextBase context, NativeWindowBase window)
         {
             _context = context;
-            _window = window;
+            _window  = window;
         }
 
         public void Dispose()
@@ -32,12 +32,12 @@ namespace Ryujinx.Ava.UI.Helpers
         public static SPBOpenGLContext CreateBackgroundContext(OpenGLContextBase sharedContext)
         {
             OpenGLContextBase context = PlatformHelper.CreateOpenGLContext(FramebufferFormat.Default, 3, 3, OpenGLContextFlags.Compat, true, sharedContext);
-            NativeWindowBase window = PlatformHelper.CreateOpenGLWindow(FramebufferFormat.Default, 0, 0, 100, 100);
+            NativeWindowBase  window  = PlatformHelper.CreateOpenGLWindow(FramebufferFormat.Default, 0, 0, 100, 100);
 
             context.Initialize(window);
             context.MakeCurrent(window);
 
-            GL.LoadBindings(new OpenToolkitBindingsContext(context.GetProcAddress));
+            GL.LoadBindings(new OpenTKBindingsContext(context.GetProcAddress));
 
             context.MakeCurrent(null);
 

Ryujinx.Ava/UI/ViewModels/MainWindowViewModel.cs

@@ -13,6 +13,7 @@ using Ryujinx.Ava.Input;
 using Ryujinx.Ava.UI.Controls;
 using Ryujinx.Ava.UI.Helpers;
 using Ryujinx.Ava.UI.Models;
+using Ryujinx.Ava.UI.Renderer;
 using Ryujinx.Ava.UI.Windows;
 using Ryujinx.Common;
 using Ryujinx.Common.Configuration;
@@ -870,7 +871,7 @@ namespace Ryujinx.Ava.UI.ViewModels
         public Action<bool> SwitchToGameControl { get; private set; }
         public Action<Control> SetMainContent { get; private set; }
         public TopLevel TopLevel { get; private set; }
-        public RendererHost RendererControl { get; private set; }
+        public RendererHost RendererHostControl { get; private set; }
         public bool IsClosing { get; set; }
         public LibHacHorizonManager LibHacHorizonManager { get; internal set; }
         public IHostUiHandler UiHandler { get; internal set; }
@@ -1144,7 +1145,7 @@ namespace Ryujinx.Ava.UI.ViewModels
 
         private void InitializeGame()
         {
-            RendererControl.RendererInitialized += GlRenderer_Created;
+            RendererHostControl.WindowCreated += RendererHost_Created;
 
             AppHost.StatusUpdatedEvent += Update_StatusBar;
             AppHost.AppExit += AppHost_AppExit;
@@ -1203,7 +1204,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             }
         }
 
-        private void GlRenderer_Created(object sender, EventArgs e)
+        private void RendererHost_Created(object sender, EventArgs e)
         {
             ShowLoading(false);
 
@@ -1601,13 +1602,9 @@ namespace Ryujinx.Ava.UI.ViewModels
 
         public async void OpenTitleUpdateManager()
         {
-            ApplicationData selection = SelectedApplication;
+            if (SelectedApplication != null)
-            if (selection != null)
             {
-                if (Avalonia.Application.Current.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+                await TitleUpdateWindow.Show(VirtualFileSystem, ulong.Parse(SelectedApplication.TitleId, NumberStyles.HexNumber), SelectedApplication.TitleName);
-                {
-                    await new TitleUpdateWindow(VirtualFileSystem, ulong.Parse(selection.TitleId, NumberStyles.HexNumber), selection.TitleName).ShowDialog(desktop.MainWindow);
-                }
             }
         }
 
@@ -1735,18 +1732,10 @@ namespace Ryujinx.Ava.UI.ViewModels
 
             PrepareLoadScreen();
 
-            RendererControl = new RendererHost(ConfigurationState.Instance.Logger.GraphicsDebugLevel);
+            RendererHostControl = new RendererHost();
-            if (ConfigurationState.Instance.Graphics.GraphicsBackend.Value == GraphicsBackend.OpenGl)
-            {
-                RendererControl.CreateOpenGL();
-            }
-            else
-            {
-                RendererControl.CreateVulkan();
-            }
 
             AppHost = new AppHost(
-                RendererControl,
+                RendererHostControl,
                 InputManager,
                 path,
                 VirtualFileSystem,
@@ -1787,9 +1776,9 @@ namespace Ryujinx.Ava.UI.ViewModels
             {
                 SwitchToGameControl(startFullscreen);
 
-                SetMainContent(RendererControl);
+                SetMainContent(RendererHostControl);
 
-                RendererControl.Focus();
+                RendererHostControl.Focus();
             });
         }
 
@@ -1857,8 +1846,8 @@ namespace Ryujinx.Ava.UI.ViewModels
                 HandleRelaunch();
             });
 
-            RendererControl.RendererInitialized -= GlRenderer_Created;
+            RendererHostControl.WindowCreated -= RendererHost_Created;
-            RendererControl = null;
+            RendererHostControl = null;
 
             SelectedIcon = null;
 

Ryujinx.Ava/UI/ViewModels/TitleUpdateViewModel.cs

@@ -0,0 +1,226 @@
+using Avalonia.Collections;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Threading;
+using LibHac.Common;
+using LibHac.Fs;
+using LibHac.Fs.Fsa;
+using LibHac.FsSystem;
+using LibHac.Ns;
+using LibHac.Tools.FsSystem;
+using LibHac.Tools.FsSystem.NcaUtils;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.UI.Helpers;
+using Ryujinx.Ava.UI.Models;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Logging;
+using Ryujinx.Common.Utilities;
+using Ryujinx.HLE.FileSystem;
+using Ryujinx.HLE.HOS;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using SpanHelpers = LibHac.Common.SpanHelpers;
+using Path = System.IO.Path;
+
+namespace Ryujinx.Ava.UI.ViewModels;
+
+public class TitleUpdateViewModel : BaseModel
+{
+    public TitleUpdateMetadata _titleUpdateWindowData;
+    public readonly string     _titleUpdateJsonPath;
+    private VirtualFileSystem  _virtualFileSystem { get; }
+    private ulong              _titleId           { get; }
+    private string             _titleName         { get; }
+
+    private AvaloniaList<TitleUpdateModel> _titleUpdates = new();
+    private AvaloniaList<object> _views = new();
+    private object _selectedUpdate;
+
+    public AvaloniaList<TitleUpdateModel> TitleUpdates
+    {
+        get => _titleUpdates;
+        set
+        {
+            _titleUpdates = value;
+            OnPropertyChanged();
+        }
+    }
+
+    public AvaloniaList<object> Views
+    {
+        get => _views;
+        set
+        {
+            _views = value;
+            OnPropertyChanged();
+        }
+    }
+
+    public object SelectedUpdate
+    {
+        get => _selectedUpdate;
+        set
+        {
+            _selectedUpdate = value;
+            OnPropertyChanged();
+        }
+    }
+
+    public TitleUpdateViewModel(VirtualFileSystem virtualFileSystem, ulong titleId, string titleName)
+    {
+        _virtualFileSystem = virtualFileSystem;
+
+        _titleId   = titleId;
+        _titleName = titleName;
+
+        _titleUpdateJsonPath = Path.Combine(AppDataManager.GamesDirPath, titleId.ToString("x16"), "updates.json");
+
+        try
+        {
+            _titleUpdateWindowData = JsonHelper.DeserializeFromFile<TitleUpdateMetadata>(_titleUpdateJsonPath);
+        }
+        catch
+        {
+            Logger.Warning?.Print(LogClass.Application, $"Failed to deserialize title update data for {_titleId} at {_titleUpdateJsonPath}");
+
+            _titleUpdateWindowData = new TitleUpdateMetadata
+            {
+                Selected = "",
+                Paths    = new List<string>()
+            };
+        }
+
+        LoadUpdates();
+    }
+
+    private void LoadUpdates()
+    {
+        foreach (string path in _titleUpdateWindowData.Paths)
+        {
+            AddUpdate(path);
+        }
+
+        TitleUpdateModel selected = TitleUpdates.FirstOrDefault(x => x.Path == _titleUpdateWindowData.Selected, null);
+
+        SelectedUpdate = selected;
+
+        SortUpdates();
+    }
+
+    public void SortUpdates()
+    {
+        var list = TitleUpdates.ToList();
+
+        list.Sort((first, second) =>
+        {
+            if (string.IsNullOrEmpty(first.Control.DisplayVersionString.ToString()))
+            {
+                return -1;
+            }
+            else if (string.IsNullOrEmpty(second.Control.DisplayVersionString.ToString()))
+            {
+                return 1;
+            }
+
+            return Version.Parse(first.Control.DisplayVersionString.ToString()).CompareTo(Version.Parse(second.Control.DisplayVersionString.ToString())) * -1;
+        });
+
+        Views.Clear();
+        Views.Add(new BaseModel());
+        Views.AddRange(list);
+
+        if (SelectedUpdate == null)
+        {
+            SelectedUpdate = Views[0];
+        }
+        else if (!TitleUpdates.Contains(SelectedUpdate))
+        {
+            if (Views.Count > 1)
+            {
+                SelectedUpdate = Views[1];
+            }
+            else
+            {
+                SelectedUpdate = Views[0];
+            }
+        }
+    }
+
+    private void AddUpdate(string path)
+    {
+        if (File.Exists(path) && TitleUpdates.All(x => x.Path != path))
+        {
+            using FileStream file = new(path, FileMode.Open, FileAccess.Read);
+
+            try
+            {
+                (Nca patchNca, Nca controlNca) = ApplicationLoader.GetGameUpdateDataFromPartition(_virtualFileSystem, new PartitionFileSystem(file.AsStorage()), _titleId.ToString("x16"), 0);
+
+                if (controlNca != null && patchNca != null)
+                {
+                    ApplicationControlProperty controlData = new();
+
+                    using UniqueRef<IFile> nacpFile = new();
+
+                    controlNca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.None).OpenFile(ref nacpFile.Ref(), "/control.nacp".ToU8Span(), OpenMode.Read).ThrowIfFailure();
+                    nacpFile.Get.Read(out _, 0, SpanHelpers.AsByteSpan(ref controlData), ReadOption.None).ThrowIfFailure();
+
+                    TitleUpdates.Add(new TitleUpdateModel(controlData, path));
+                }
+                else
+                {
+                    Dispatcher.UIThread.Post(async () =>
+                    {
+                        await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogUpdateAddUpdateErrorMessage]);
+                    });
+                }
+            }
+            catch (Exception ex)
+            {
+                Dispatcher.UIThread.Post(async () =>
+                {
+                    await ContentDialogHelper.CreateErrorDialog(string.Format(LocaleManager.Instance[LocaleKeys.DialogDlcLoadNcaErrorMessage], ex.Message, path));
+                });
+            }
+        }
+    }
+
+    public void RemoveUpdate(TitleUpdateModel update)
+    {
+        TitleUpdates.Remove(update);
+
+        SortUpdates();
+    }
+
+    public async void Add()
+    {
+        OpenFileDialog dialog = new()
+        {
+            Title         = LocaleManager.Instance[LocaleKeys.SelectUpdateDialogTitle],
+            AllowMultiple = true
+        };
+
+        dialog.Filters.Add(new FileDialogFilter
+        {
+            Name       = "NSP",
+            Extensions = { "nsp" }
+        });
+
+        if (Avalonia.Application.Current.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            string[] files = await dialog.ShowAsync(desktop.MainWindow);
+
+            if (files != null)
+            {
+                foreach (string file in files)
+                {
+                    AddUpdate(file);
+                }
+            }
+        }
+
+        SortUpdates();
+    }
+}

Ryujinx.Ava/UI/Views/User/UserSaveManagerView.axaml

@@ -107,6 +107,7 @@
             VerticalAlignment="Stretch">
             <ListBox
                 Name="SaveList"
+                VirtualizationMode="None"
                 Items="{Binding Views}"
                 HorizontalAlignment="Stretch"
                 VerticalAlignment="Stretch">
@@ -116,6 +117,9 @@
                         <Setter Property="Margin" Value="5" />
                         <Setter Property="CornerRadius" Value="4" />
                     </Style>
+                    <Style Selector="ListBoxItem:selected /template/ Border#SelectionIndicator">
+                        <Setter Property="IsVisible" Value="False" />
+                    </Style>
                 </ListBox.Styles>
                 <ListBox.ItemTemplate>
                     <DataTemplate x:DataType="models:SaveModel">

Ryujinx.Ava/UI/Windows/TitleUpdateWindow.axaml

@@ -1,115 +1,135 @@
-<window:StyleableWindow
+<UserControl
     x:Class="Ryujinx.Ava.UI.Windows.TitleUpdateWindow"
     xmlns="https://github.com/avaloniaui"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:locale="clr-namespace:Ryujinx.Ava.Common.Locale"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-    xmlns:window="clr-namespace:Ryujinx.Ava.UI.Windows"
+    xmlns:viewModels="clr-namespace:Ryujinx.Ava.UI.ViewModels"
-    Width="600"
+    xmlns:models="clr-namespace:Ryujinx.Ava.UI.Models"
-    Height="400"
+    xmlns:ui="clr-namespace:FluentAvalonia.UI.Controls;assembly=FluentAvalonia"
-    MinWidth="600"
+    Width="500"
-    MinHeight="400"
+    Height="300"
-    MaxWidth="600"
-    MaxHeight="400"
-    SizeToContent="Height"
-    WindowStartupLocation="CenterOwner"
     mc:Ignorable="d"
+    x:CompileBindings="True"
+    x:DataType="viewModels:TitleUpdateViewModel"
     Focusable="True">
-    <Grid Margin="15">
+    <Grid>
         <Grid.RowDefinitions>
-            <RowDefinition Height="Auto" />
-            <RowDefinition Height="Auto" />
             <RowDefinition Height="*" />
             <RowDefinition Height="Auto" />
         </Grid.RowDefinitions>
-        <TextBlock
-            Name="Heading"
-            Grid.Row="1"
-            MaxWidth="500"
-            Margin="20,15,20,20"
-            HorizontalAlignment="Center"
-            VerticalAlignment="Center"
-            LineHeight="18"
-            TextAlignment="Center"
-            TextWrapping="Wrap" />
         <Border
-            Grid.Row="2"
+            Grid.Row="0"
-            Margin="5"
+            Margin="0 0 0 24"
             HorizontalAlignment="Stretch"
             VerticalAlignment="Stretch"
-            BorderBrush="Gray"
+            BorderBrush="{DynamicResource AppListHoverBackgroundColor}"
-            BorderThickness="1">
+            BorderThickness="1"
-            <ScrollViewer
+            CornerRadius="5"
-                VerticalAlignment="Stretch"
+            Padding="2.5">
-                HorizontalScrollBarVisibility="Auto"
+            <ListBox
-                VerticalScrollBarVisibility="Auto">
+                VirtualizationMode="None"
-                <ItemsControl
+                Background="Transparent"
-                    Margin="10"
+                SelectedItem="{Binding SelectedUpdate, Mode=TwoWay}"
-                    HorizontalAlignment="Stretch"
+                Items="{Binding Views}">
-                    VerticalAlignment="Stretch"
+                <ListBox.DataTemplates>
-                    Items="{Binding _titleUpdates}">
+                    <DataTemplate
-                    <ItemsControl.ItemTemplate>
+                        DataType="models:TitleUpdateModel">
-                        <DataTemplate>
+                        <Panel Margin="10">
-                            <RadioButton
+                            <TextBlock
-                                Padding="8,0"
+                                HorizontalAlignment="Left"
-                                VerticalContentAlignment="Center"
+                                VerticalAlignment="Center"
-                                GroupName="Update"
+                                TextWrapping="Wrap"
-                                IsChecked="{Binding IsEnabled, Mode=TwoWay}">
+                                Text="{Binding Label}" />
-                                <Label
+                            <StackPanel
-                                    Margin="0"
+                                Spacing="10"
+                                Orientation="Horizontal"
+                                HorizontalAlignment="Right">
+                                <Button
                                     VerticalAlignment="Center"
-                                    Content="{Binding Label}"
+                                    HorizontalAlignment="Right"
-                                    FontSize="12" />
+                                    Padding="10"
-                            </RadioButton>
+                                    MinWidth="0"
-                        </DataTemplate>
+                                    MinHeight="0"
-                    </ItemsControl.ItemTemplate>
+                                    Click="OpenLocation">
-                </ItemsControl>
+                                    <ui:SymbolIcon
-            </ScrollViewer>
+                                        Symbol="OpenFolder"
+                                        HorizontalAlignment="Center"
+                                        VerticalAlignment="Center" />
+                                </Button>
+                                <Button
+                                    VerticalAlignment="Center"
+                                    HorizontalAlignment="Right"
+                                    Padding="10"
+                                    MinWidth="0"
+                                    MinHeight="0"
+                                    Click="RemoveUpdate">
+                                    <ui:SymbolIcon
+                                        Symbol="Cancel"
+                                        HorizontalAlignment="Center"
+                                        VerticalAlignment="Center" />
+                                </Button>
+                            </StackPanel>
+                        </Panel>
+                    </DataTemplate>
+                    <DataTemplate
+                        DataType="viewModels:BaseModel">
+                        <Panel
+                            Height="33"
+                            Margin="10">
+                            <TextBlock
+                                HorizontalAlignment="Left"
+                                VerticalAlignment="Center"
+                                TextWrapping="Wrap"
+                                Text="{locale:Locale NoUpdate}" />
+                        </Panel>
+                    </DataTemplate>
+                </ListBox.DataTemplates>
+                <ListBox.Styles>
+                    <Style Selector="ListBoxItem">
+                        <Setter Property="Background" Value="Transparent" />
+                    </Style>
+                </ListBox.Styles>
+            </ListBox>
         </Border>
-        <DockPanel
+        <Panel
-            Grid.Row="3"
+            Grid.Row="1"
-            Margin="0"
             HorizontalAlignment="Stretch">
-            <DockPanel Margin="0" HorizontalAlignment="Left">
+            <StackPanel
+                Orientation="Horizontal"
+                Spacing="10"
+                HorizontalAlignment="Left">
                 <Button
                     Name="AddButton"
                     MinWidth="90"
-                    Margin="5"
+                    Command="{ReflectionBinding Add}">
-                    Command="{Binding Add}">
                     <TextBlock Text="{locale:Locale SettingsTabGeneralAdd}" />
                 </Button>
-                <Button
-                    Name="RemoveButton"
-                    MinWidth="90"
-                    Margin="5"
-                    Command="{Binding RemoveSelected}">
-                    <TextBlock Text="{locale:Locale SettingsTabGeneralRemove}" />
-                </Button>
                 <Button
                     Name="RemoveAllButton"
                     MinWidth="90"
-                    Margin="5"
+                    Click="RemoveAll">
-                    Command="{Binding RemoveAll}">
                     <TextBlock Text="{locale:Locale DlcManagerRemoveAllButton}" />
                 </Button>
-            </DockPanel>
+            </StackPanel>
-            <DockPanel Margin="0" HorizontalAlignment="Right">
+            <StackPanel
+                Orientation="Horizontal"
+                Spacing="10"
+                HorizontalAlignment="Right">
                 <Button
                     Name="SaveButton"
                     MinWidth="90"
-                    Margin="5"
+                    Click="Save">
-                    Command="{Binding Save}">
                     <TextBlock Text="{locale:Locale SettingsButtonSave}" />
                 </Button>
                 <Button
                     Name="CancelButton"
                     MinWidth="90"
-                    Margin="5"
+                    Click="Close">
-                    Command="{Binding Close}">
                     <TextBlock Text="{locale:Locale InputDialogCancel}" />
                 </Button>
-            </DockPanel>
+            </StackPanel>
-        </DockPanel>
+        </Panel>
     </Grid>
-</window:StyleableWindow>
+</UserControl>

Ryujinx.Ava/UI/Windows/TitleUpdateWindow.axaml.cs

@@ -1,271 +1,116 @@
-using Avalonia.Collections;
 using Avalonia.Controls;
-using Avalonia.Threading;
+using Avalonia.Interactivity;
-using LibHac.Common;
+using Avalonia.Styling;
-using LibHac.Fs;
+using FluentAvalonia.UI.Controls;
-using LibHac.Fs.Fsa;
-using LibHac.FsSystem;
-using LibHac.Ns;
-using LibHac.Tools.FsSystem;
-using LibHac.Tools.FsSystem.NcaUtils;
 using Ryujinx.Ava.Common.Locale;
-using Ryujinx.Ava.UI.Controls;
 using Ryujinx.Ava.UI.Helpers;
 using Ryujinx.Ava.UI.Models;
-using Ryujinx.Common.Configuration;
+using Ryujinx.Ava.UI.ViewModels;
 using Ryujinx.Common.Utilities;
 using Ryujinx.HLE.FileSystem;
-using Ryujinx.HLE.HOS;
+using Ryujinx.Ui.Common.Helper;
-using System;
-using System.Collections.Generic;
 using System.IO;
-using System.Linq;
 using System.Text;
-using Path = System.IO.Path;
+using System.Threading.Tasks;
-using SpanHelpers = LibHac.Common.SpanHelpers;
+using Button = Avalonia.Controls.Button;
 
 namespace Ryujinx.Ava.UI.Windows
 {
-    public partial class TitleUpdateWindow : StyleableWindow
+    public partial class TitleUpdateWindow : UserControl
     {
-        private readonly string     _titleUpdateJsonPath;
+        public TitleUpdateViewModel ViewModel;
-        private TitleUpdateMetadata _titleUpdateWindowData;
-
-        private VirtualFileSystem              _virtualFileSystem { get; }
-        private AvaloniaList<TitleUpdateModel> _titleUpdates      { get; set; }
-
-        private ulong  _titleId   { get; }
-        private string _titleName { get; }
 
         public TitleUpdateWindow()
         {
             DataContext = this;
 
             InitializeComponent();
-            
-            Title = $"Ryujinx {Program.Version} - {LocaleManager.Instance[LocaleKeys.UpdateWindowTitle]} - {_titleName} ({_titleId:X16})";
         }
 
         public TitleUpdateWindow(VirtualFileSystem virtualFileSystem, ulong titleId, string titleName)
         {
-            _virtualFileSystem = virtualFileSystem;
+            DataContext = ViewModel = new TitleUpdateViewModel(virtualFileSystem, titleId, titleName);
-            _titleUpdates      = new AvaloniaList<TitleUpdateModel>();
-
-            _titleId   = titleId;
-            _titleName = titleName;
-
-            _titleUpdateJsonPath = Path.Combine(AppDataManager.GamesDirPath, titleId.ToString("x16"), "updates.json");
-
-            try
-            {
-                _titleUpdateWindowData = JsonHelper.DeserializeFromFile<TitleUpdateMetadata>(_titleUpdateJsonPath);
-            }
-            catch
-            {
-                _titleUpdateWindowData = new TitleUpdateMetadata 
-                {
-                    Selected = "",
-                    Paths    = new List<string>()
-                };
-            }
-
-            DataContext = this;
 
             InitializeComponent();
-
-            Title = $"Ryujinx {Program.Version} - {LocaleManager.Instance[LocaleKeys.UpdateWindowTitle]} - {_titleName} ({_titleId:X16})";
-
-            LoadUpdates();
-            PrintHeading();
         }
 
-        private void PrintHeading()
+        public static async Task Show(VirtualFileSystem virtualFileSystem, ulong titleId, string titleName)
         {
-            Heading.Text = string.Format(LocaleManager.Instance[LocaleKeys.GameUpdateWindowHeading], _titleUpdates.Count - 1, _titleName, _titleId.ToString("X16"));
+            ContentDialog contentDialog = new()
-        }
-
-        private void LoadUpdates()
-        {
-            _titleUpdates.Add(new TitleUpdateModel(default, string.Empty, true));
-
-            foreach (string path in _titleUpdateWindowData.Paths)
             {
-                AddUpdate(path);
+                PrimaryButtonText   = "",
-            }
+                SecondaryButtonText = "",
-
+                CloseButtonText     = "",
-            if (_titleUpdateWindowData.Selected == "")
+                Content             = new TitleUpdateWindow(virtualFileSystem, titleId, titleName),
-            {
+                Title               = string.Format(LocaleManager.Instance[LocaleKeys.GameUpdateWindowHeading], titleName, titleId.ToString("X16"))
-                _titleUpdates[0].IsEnabled = true;
-            }
-            else
-            {
-                TitleUpdateModel       selected = _titleUpdates.FirstOrDefault(x => x.Path == _titleUpdateWindowData.Selected);
-                List<TitleUpdateModel> enabled  = _titleUpdates.Where(x => x.IsEnabled).ToList();
-
-                foreach (TitleUpdateModel update in enabled)
-                {
-                    update.IsEnabled = false;
-                }
-
-                if (selected != null)
-                {
-                    selected.IsEnabled = true;
-                }
-            }
-
-            SortUpdates();
-        }
-
-        private void AddUpdate(string path)
-        {
-            if (File.Exists(path) && !_titleUpdates.Any(x => x.Path == path))
-            {
-                using FileStream file = new(path, FileMode.Open, FileAccess.Read);
-
-                try
-                {
-                    (Nca patchNca, Nca controlNca) = ApplicationLoader.GetGameUpdateDataFromPartition(_virtualFileSystem, new PartitionFileSystem(file.AsStorage()), _titleId.ToString("x16"), 0);
-
-                    if (controlNca != null && patchNca != null)
-                    {
-                        ApplicationControlProperty controlData = new();
-
-                        using UniqueRef<IFile> nacpFile = new();
-
-                        controlNca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.None).OpenFile(ref nacpFile.Ref(), "/control.nacp".ToU8Span(), OpenMode.Read).ThrowIfFailure();
-                        nacpFile.Get.Read(out _, 0, SpanHelpers.AsByteSpan(ref controlData), ReadOption.None).ThrowIfFailure();
-
-                        _titleUpdates.Add(new TitleUpdateModel(controlData, path));
-
-                        foreach (var update in _titleUpdates)
-                        {
-                            update.IsEnabled = false;
-                        }
-
-                        _titleUpdates.Last().IsEnabled = true;
-                    }
-                    else
-                    {
-                        Dispatcher.UIThread.Post(async () =>
-                        {
-                            await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogUpdateAddUpdateErrorMessage]);
-                        });
-                    }
-                }
-                catch (Exception ex)
-                {
-                    Dispatcher.UIThread.Post(async () =>
-                    {
-                        await ContentDialogHelper.CreateErrorDialog(string.Format(LocaleManager.Instance[LocaleKeys.DialogDlcLoadNcaErrorMessage], ex.Message, path));
-                    });
-                }
-            }
-        }
-
-        private void RemoveUpdates(bool removeSelectedOnly = false)
-        {
-            if (removeSelectedOnly)
-            {
-                _titleUpdates.RemoveAll(_titleUpdates.Where(x => x.IsEnabled && !x.IsNoUpdate).ToList());
-            }
-            else
-            {
-                _titleUpdates.RemoveAll(_titleUpdates.Where(x => !x.IsNoUpdate).ToList());
-            }
-
-            _titleUpdates.FirstOrDefault(x => x.IsNoUpdate).IsEnabled = true;
-
-            SortUpdates();
-            PrintHeading();
-        }
-
-        public void RemoveSelected()
-        {
-            RemoveUpdates(true);
-        }
-
-        public void RemoveAll()
-        {
-            RemoveUpdates();
-        }
-
-        public async void Add()
-        {
-            OpenFileDialog dialog = new()
-            {
-                Title         = LocaleManager.Instance[LocaleKeys.SelectUpdateDialogTitle],
-                AllowMultiple = true
             };
 
-            dialog.Filters.Add(new FileDialogFilter
+            Style bottomBorder = new(x => x.OfType<Grid>().Name("DialogSpace").Child().OfType<Border>());
-            {
+            bottomBorder.Setters.Add(new Setter(IsVisibleProperty, false));
-                Name       = "NSP", 
-                Extensions = { "nsp" }
-            });
 
-            string[] files = await dialog.ShowAsync(this);
+            contentDialog.Styles.Add(bottomBorder);
 
-            if (files != null)
+            await ContentDialogHelper.ShowAsync(contentDialog);
-            {
-                foreach (string file in files)
-                {
-                    AddUpdate(file);
-                }
-            }
-
-            SortUpdates();
-            PrintHeading();
         }
 
-        private void SortUpdates()
+        private void Close(object sender, RoutedEventArgs e)
         {
-            var list = _titleUpdates.ToList();
+            ((ContentDialog)Parent).Hide();
-
-            list.Sort((first, second) =>
-            {
-                if (string.IsNullOrEmpty(first.Control.DisplayVersionString.ToString()))
-                {
-                    return -1;
-                }
-                else if (string.IsNullOrEmpty(second.Control.DisplayVersionString.ToString()))
-                {
-                    return 1;
-                }
-
-                return Version.Parse(first.Control.DisplayVersionString.ToString()).CompareTo(Version.Parse(second.Control.DisplayVersionString.ToString())) * -1;
-            });
-
-            _titleUpdates.Clear();
-            _titleUpdates.AddRange(list);
         }
 
-        public void Save()
+        public void Save(object sender, RoutedEventArgs e)
         {
-            _titleUpdateWindowData.Paths.Clear();
+            ViewModel._titleUpdateWindowData.Paths.Clear();
 
-            _titleUpdateWindowData.Selected = "";
+            ViewModel._titleUpdateWindowData.Selected = "";
 
-            foreach (TitleUpdateModel update in _titleUpdates)
+            foreach (TitleUpdateModel update in ViewModel.TitleUpdates)
             {
-                _titleUpdateWindowData.Paths.Add(update.Path);
+                ViewModel._titleUpdateWindowData.Paths.Add(update.Path);
 
-                if (update.IsEnabled)
+                if (update == ViewModel.SelectedUpdate)
                 {
-                    _titleUpdateWindowData.Selected = update.Path;
+                    ViewModel._titleUpdateWindowData.Selected = update.Path;
                 }
             }
 
-            using (FileStream titleUpdateJsonStream = File.Create(_titleUpdateJsonPath, 4096, FileOptions.WriteThrough))
+            using (FileStream titleUpdateJsonStream = File.Create(ViewModel._titleUpdateJsonPath, 4096, FileOptions.WriteThrough))
             {
-                titleUpdateJsonStream.Write(Encoding.UTF8.GetBytes(JsonHelper.Serialize(_titleUpdateWindowData, true)));
+                titleUpdateJsonStream.Write(Encoding.UTF8.GetBytes(JsonHelper.Serialize(ViewModel._titleUpdateWindowData, true)));
             }
 
-            if (Owner is MainWindow window)
+            if (VisualRoot is MainWindow window)
             {
                 window.ViewModel.LoadApplications();
             }
 
-            Close();
+            ((ContentDialog)Parent).Hide();
+        }
+
+        private void OpenLocation(object sender, RoutedEventArgs e)
+        {
+            if (sender is Button button)
+            {
+                if (button.DataContext is TitleUpdateModel model)
+                {
+                    OpenHelper.LocateFile(model.Path);
+                }
+            }
+        }
+
+        private void RemoveUpdate(object sender, RoutedEventArgs e)
+        {
+            if (sender is Button button)
+            {
+                ViewModel.RemoveUpdate((TitleUpdateModel)button.DataContext);
+            }
+        }
+
+        private void RemoveAll(object sender, RoutedEventArgs e)
+        {
+            ViewModel.TitleUpdates.Clear();
+
+            ViewModel.SortUpdates();
         }
     }
 }

Ryujinx.Cpu/AddressSpace.cs

@@ -0,0 +1,470 @@
+using Ryujinx.Common;
+using Ryujinx.Common.Collections;
+using Ryujinx.Memory;
+using System;
+
+namespace Ryujinx.Cpu
+{
+    class AddressSpace : IDisposable
+    {
+        private const ulong PageSize = 0x1000;
+
+        private const int DefaultBlockAlignment = 1 << 20;
+
+        private enum MappingType : byte
+        {
+            None,
+            Private,
+            Shared
+        }
+
+        private class Mapping : IntrusiveRedBlackTreeNode<Mapping>, IComparable<Mapping>
+        {
+            public ulong Address { get; private set; }
+            public ulong Size { get; private set; }
+            public ulong EndAddress => Address + Size;
+            public MappingType Type { get; private set; }
+
+            public Mapping(ulong address, ulong size, MappingType type)
+            {
+                Address = address;
+                Size = size;
+                Type = type;
+            }
+
+            public Mapping Split(ulong splitAddress)
+            {
+                ulong leftSize = splitAddress - Address;
+                ulong rightSize = EndAddress - splitAddress;
+
+                Mapping left = new Mapping(Address, leftSize, Type);
+
+                Address = splitAddress;
+                Size = rightSize;
+
+                return left;
+            }
+
+            public void UpdateState(MappingType newType)
+            {
+                Type = newType;
+            }
+
+            public void Extend(ulong sizeDelta)
+            {
+                Size += sizeDelta;
+            }
+
+            public int CompareTo(Mapping other)
+            {
+                if (Address < other.Address)
+                {
+                    return -1;
+                }
+                else if (Address <= other.EndAddress - 1UL)
+                {
+                    return 0;
+                }
+                else
+                {
+                    return 1;
+                }
+            }
+        }
+
+        private class PrivateMapping : IntrusiveRedBlackTreeNode<PrivateMapping>, IComparable<PrivateMapping>
+        {
+            public ulong Address { get; private set; }
+            public ulong Size { get; private set; }
+            public ulong EndAddress => Address + Size;
+            public PrivateMemoryAllocation PrivateAllocation { get; private set; }
+
+            public PrivateMapping(ulong address, ulong size, PrivateMemoryAllocation privateAllocation)
+            {
+                Address = address;
+                Size = size;
+                PrivateAllocation = privateAllocation;
+            }
+
+            public PrivateMapping Split(ulong splitAddress)
+            {
+                ulong leftSize = splitAddress - Address;
+                ulong rightSize = EndAddress - splitAddress;
+
+                (var leftAllocation, PrivateAllocation) = PrivateAllocation.Split(leftSize);
+
+                PrivateMapping left = new PrivateMapping(Address, leftSize, leftAllocation);
+
+                Address = splitAddress;
+                Size = rightSize;
+
+                return left;
+            }
+
+            public void Map(MemoryBlock baseBlock, MemoryBlock mirrorBlock, PrivateMemoryAllocation newAllocation)
+            {
+                baseBlock.MapView(newAllocation.Memory, newAllocation.Offset, Address, Size);
+                mirrorBlock.MapView(newAllocation.Memory, newAllocation.Offset, Address, Size);
+                PrivateAllocation = newAllocation;
+            }
+
+            public void Unmap(MemoryBlock baseBlock, MemoryBlock mirrorBlock)
+            {
+                if (PrivateAllocation.IsValid)
+                {
+                    baseBlock.UnmapView(PrivateAllocation.Memory, Address, Size);
+                    mirrorBlock.UnmapView(PrivateAllocation.Memory, Address, Size);
+                    PrivateAllocation.Dispose();
+                }
+
+                PrivateAllocation = default;
+            }
+
+            public void Extend(ulong sizeDelta)
+            {
+                Size += sizeDelta;
+            }
+
+            public int CompareTo(PrivateMapping other)
+            {
+                if (Address < other.Address)
+                {
+                    return -1;
+                }
+                else if (Address <= other.EndAddress - 1UL)
+                {
+                    return 0;
+                }
+                else
+                {
+                    return 1;
+                }
+            }
+        }
+
+        private readonly MemoryBlock _backingMemory;
+        private readonly PrivateMemoryAllocator _privateMemoryAllocator;
+        private readonly IntrusiveRedBlackTree<Mapping> _mappingTree;
+        private readonly IntrusiveRedBlackTree<PrivateMapping> _privateTree;
+
+        private readonly object _treeLock;
+
+        private readonly bool _supports4KBPages;
+
+        public MemoryBlock Base { get; }
+        public MemoryBlock Mirror { get; }
+
+        public AddressSpace(MemoryBlock backingMemory, ulong asSize, bool supports4KBPages)
+        {
+            if (!supports4KBPages)
+            {
+                _privateMemoryAllocator = new PrivateMemoryAllocator(DefaultBlockAlignment, MemoryAllocationFlags.Mirrorable | MemoryAllocationFlags.NoMap);
+                _mappingTree = new IntrusiveRedBlackTree<Mapping>();
+                _privateTree = new IntrusiveRedBlackTree<PrivateMapping>();
+                _treeLock = new object();
+
+                _mappingTree.Add(new Mapping(0UL, asSize, MappingType.None));
+                _privateTree.Add(new PrivateMapping(0UL, asSize, default));
+            }
+
+            _backingMemory = backingMemory;
+            _supports4KBPages = supports4KBPages;
+
+            MemoryAllocationFlags asFlags = MemoryAllocationFlags.Reserve | MemoryAllocationFlags.ViewCompatible;
+
+            Base = new MemoryBlock(asSize, asFlags);
+            Mirror = new MemoryBlock(asSize, asFlags);
+        }
+
+        public void Map(ulong va, ulong pa, ulong size, MemoryMapFlags flags)
+        {
+            if (_supports4KBPages)
+            {
+                Base.MapView(_backingMemory, pa, va, size);
+                Mirror.MapView(_backingMemory, pa, va, size);
+
+                return;
+            }
+
+            lock (_treeLock)
+            {
+                ulong alignment = MemoryBlock.GetPageSize();
+                bool isAligned = ((va | pa | size) & (alignment - 1)) == 0;
+
+                if (flags.HasFlag(MemoryMapFlags.Private) && !isAligned)
+                {
+                    Update(va, pa, size, MappingType.Private);
+                }
+                else
+                {
+                    // The update method assumes that shared mappings are already aligned.
+
+                    if (!flags.HasFlag(MemoryMapFlags.Private))
+                    {
+                        if ((va & (alignment - 1)) != (pa & (alignment - 1)))
+                        {
+                            throw new InvalidMemoryRegionException($"Virtual address 0x{va:X} and physical address 0x{pa:X} are misaligned and can't be aligned.");
+                        }
+
+                        ulong endAddress = va + size;
+                        va = BitUtils.AlignDown(va, alignment);
+                        pa = BitUtils.AlignDown(pa, alignment);
+                        size = BitUtils.AlignUp(endAddress, alignment) - va;
+                    }
+
+                    Update(va, pa, size, MappingType.Shared);
+                }
+            }
+        }
+
+        public void Unmap(ulong va, ulong size)
+        {
+            if (_supports4KBPages)
+            {
+                Base.UnmapView(_backingMemory, va, size);
+                Mirror.UnmapView(_backingMemory, va, size);
+
+                return;
+            }
+
+            lock (_treeLock)
+            {
+                Update(va, 0UL, size, MappingType.None);
+            }
+        }
+
+        private void Update(ulong va, ulong pa, ulong size, MappingType type)
+        {
+            Mapping map = _mappingTree.GetNode(new Mapping(va, 1UL, MappingType.None));
+
+            Update(map, va, pa, size, type);
+        }
+
+        private Mapping Update(Mapping map, ulong va, ulong pa, ulong size, MappingType type)
+        {
+            ulong endAddress = va + size;
+
+            for (; map != null; map = map.Successor)
+            {
+                if (map.Address < va)
+                {
+                    _mappingTree.Add(map.Split(va));
+                }
+
+                if (map.EndAddress > endAddress)
+                {
+                    Mapping newMap = map.Split(endAddress);
+                    _mappingTree.Add(newMap);
+                    map = newMap;
+                }
+
+                switch (type)
+                {
+                    case MappingType.None:
+                        if (map.Type == MappingType.Shared)
+                        {
+                            ulong startOffset = map.Address - va;
+                            ulong mapVa = va + startOffset;
+                            ulong mapSize = Math.Min(size - startOffset, map.Size);
+                            ulong mapEndAddress = mapVa + mapSize;
+                            ulong alignment = MemoryBlock.GetPageSize();
+
+                            mapVa = BitUtils.AlignDown(mapVa, alignment);
+                            mapEndAddress = BitUtils.AlignUp(mapEndAddress, alignment);
+
+                            mapSize = mapEndAddress - mapVa;
+
+                            Base.UnmapView(_backingMemory, mapVa, mapSize);
+                            Mirror.UnmapView(_backingMemory, mapVa, mapSize);
+                        }
+                        else
+                        {
+                            UnmapPrivate(va, size);
+                        }
+                        break;
+                    case MappingType.Private:
+                        if (map.Type == MappingType.Shared)
+                        {
+                            throw new InvalidMemoryRegionException($"Private mapping request at 0x{va:X} with size 0x{size:X} overlaps shared mapping at 0x{map.Address:X} with size 0x{map.Size:X}.");
+                        }
+                        else
+                        {
+                            MapPrivate(va, size);
+                        }
+                        break;
+                    case MappingType.Shared:
+                        if (map.Type != MappingType.None)
+                        {
+                            throw new InvalidMemoryRegionException($"Shared mapping request at 0x{va:X} with size 0x{size:X} overlaps mapping at 0x{map.Address:X} with size 0x{map.Size:X}.");
+                        }
+                        else
+                        {
+                            ulong startOffset = map.Address - va;
+                            ulong mapPa = pa + startOffset;
+                            ulong mapVa = va + startOffset;
+                            ulong mapSize = Math.Min(size - startOffset, map.Size);
+
+                            Base.MapView(_backingMemory, mapPa, mapVa, mapSize);
+                            Mirror.MapView(_backingMemory, mapPa, mapVa, mapSize);
+                        }
+                        break;
+                }
+
+                map.UpdateState(type);
+                map = TryCoalesce(map);
+
+                if (map.EndAddress >= endAddress)
+                {
+                    break;
+                }
+            }
+
+            return map;
+        }
+
+        private Mapping TryCoalesce(Mapping map)
+        {
+            Mapping previousMap = map.Predecessor;
+            Mapping nextMap = map.Successor;
+
+            if (previousMap != null && CanCoalesce(previousMap, map))
+            {
+                previousMap.Extend(map.Size);
+                _mappingTree.Remove(map);
+                map = previousMap;
+            }
+
+            if (nextMap != null && CanCoalesce(map, nextMap))
+            {
+                map.Extend(nextMap.Size);
+                _mappingTree.Remove(nextMap);
+            }
+
+            return map;
+        }
+
+        private static bool CanCoalesce(Mapping left, Mapping right)
+        {
+            return left.Type == right.Type;
+        }
+
+        private void MapPrivate(ulong va, ulong size)
+        {
+            ulong endAddress = va + size;
+
+            ulong alignment = MemoryBlock.GetPageSize();
+
+            // Expand the range outwards based on page size to ensure that at least the requested region is mapped.
+            ulong vaAligned = BitUtils.AlignDown(va, alignment);
+            ulong endAddressAligned = BitUtils.AlignUp(endAddress, alignment);
+
+            ulong sizeAligned = endAddressAligned - vaAligned;
+
+            PrivateMapping map = _privateTree.GetNode(new PrivateMapping(va, 1UL, default));
+
+            for (; map != null; map = map.Successor)
+            {
+                if (!map.PrivateAllocation.IsValid)
+                {
+                    if (map.Address < vaAligned)
+                    {
+                        _privateTree.Add(map.Split(vaAligned));
+                    }
+
+                    if (map.EndAddress > endAddressAligned)
+                    {
+                        PrivateMapping newMap = map.Split(endAddressAligned);
+                        _privateTree.Add(newMap);
+                        map = newMap;
+                    }
+
+                    map.Map(Base, Mirror, _privateMemoryAllocator.Allocate(map.Size, MemoryBlock.GetPageSize()));
+                }
+
+                if (map.EndAddress >= endAddressAligned)
+                {
+                    break;
+                }
+            }
+        }
+
+        private void UnmapPrivate(ulong va, ulong size)
+        {
+            ulong endAddress = va + size;
+
+            ulong alignment = MemoryBlock.GetPageSize();
+
+            // Shrink the range inwards based on page size to ensure we won't unmap memory that might be still in use.
+            ulong vaAligned = BitUtils.AlignUp(va, alignment);
+            ulong endAddressAligned = BitUtils.AlignDown(endAddress, alignment);
+
+            if (endAddressAligned <= vaAligned)
+            {
+                return;
+            }
+
+            ulong alignedSize = endAddressAligned - vaAligned;
+
+            PrivateMapping map = _privateTree.GetNode(new PrivateMapping(va, 1UL, default));
+
+            for (; map != null; map = map.Successor)
+            {
+                if (map.PrivateAllocation.IsValid)
+                {
+                    if (map.Address < vaAligned)
+                    {
+                        _privateTree.Add(map.Split(vaAligned));
+                    }
+
+                    if (map.EndAddress > endAddressAligned)
+                    {
+                        PrivateMapping newMap = map.Split(endAddressAligned);
+                        _privateTree.Add(newMap);
+                        map = newMap;
+                    }
+
+                    map.Unmap(Base, Mirror);
+                    map = TryCoalesce(map);
+                }
+
+                if (map.EndAddress >= endAddressAligned)
+                {
+                    break;
+                }
+            }
+        }
+
+        private PrivateMapping TryCoalesce(PrivateMapping map)
+        {
+            PrivateMapping previousMap = map.Predecessor;
+            PrivateMapping nextMap = map.Successor;
+
+            if (previousMap != null && CanCoalesce(previousMap, map))
+            {
+                previousMap.Extend(map.Size);
+                _privateTree.Remove(map);
+                map = previousMap;
+            }
+
+            if (nextMap != null && CanCoalesce(map, nextMap))
+            {
+                map.Extend(nextMap.Size);
+                _privateTree.Remove(nextMap);
+            }
+
+            return map;
+        }
+
+        private static bool CanCoalesce(PrivateMapping left, PrivateMapping right)
+        {
+            return !left.PrivateAllocation.IsValid && !right.PrivateAllocation.IsValid;
+        }
+
+        public void Dispose()
+        {
+            _privateMemoryAllocator?.Dispose();
+            Base.Dispose();
+            Mirror.Dispose();
+        }
+    }
+}

Ryujinx.Cpu/Jit/JitMemoryAllocator.cs

@@ -7,5 +7,7 @@ namespace Ryujinx.Cpu.Jit
     {
         public IJitMemoryBlock Allocate(ulong size) => new JitMemoryBlock(size, MemoryAllocationFlags.None);
         public IJitMemoryBlock Reserve(ulong size) => new JitMemoryBlock(size, MemoryAllocationFlags.Reserve | MemoryAllocationFlags.Jit);
+
+        public ulong GetPageSize() => MemoryBlock.GetPageSize();
     }
 }

Ryujinx.Cpu/Jit/MemoryManager.cs

@@ -28,6 +28,9 @@ namespace Ryujinx.Cpu.Jit
         private readonly MemoryBlock _backingMemory;
         private readonly InvalidAccessHandler _invalidAccessHandler;
 
+        /// <inheritdoc/>
+        public bool Supports4KBPages => true;
+
         /// <summary>
         /// Address space width in bits.
         /// </summary>
@@ -76,7 +79,7 @@ namespace Ryujinx.Cpu.Jit
         }
 
         /// <inheritdoc/>
-        public void Map(ulong va, ulong pa, ulong size)
+        public void Map(ulong va, ulong pa, ulong size, MemoryMapFlags flags)
         {
             AssertValidAddressAndSize(va, size);
 
@@ -91,9 +94,16 @@ namespace Ryujinx.Cpu.Jit
                 pa += PageSize;
                 remainingSize -= PageSize;
             }
+
             Tracking.Map(oVa, size);
         }
 
+        /// <inheritdoc/>
+        public void MapForeign(ulong va, nuint hostPointer, ulong size)
+        {
+            throw new NotSupportedException();
+        }
+
         /// <inheritdoc/>
         public void Unmap(ulong va, ulong size)
         {
@@ -378,6 +388,32 @@ namespace Ryujinx.Cpu.Jit
             return true;
         }
 
+        /// <inheritdoc/>
+        public IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size)
+        {
+            if (size == 0)
+            {
+                return Enumerable.Empty<HostMemoryRange>();
+            }
+
+            var guestRegions = GetPhysicalRegionsImpl(va, size);
+            if (guestRegions == null)
+            {
+                return null;
+            }
+
+            var regions = new HostMemoryRange[guestRegions.Count];
+
+            for (int i = 0; i < regions.Length; i++)
+            {
+                var guestRegion = guestRegions[i];
+                IntPtr pointer = _backingMemory.GetPointer(guestRegion.Address, guestRegion.Size);
+                regions[i] = new HostMemoryRange((nuint)(ulong)pointer, guestRegion.Size);
+            }
+
+            return regions;
+        }
+
         /// <inheritdoc/>
         public IEnumerable<MemoryRange> GetPhysicalRegions(ulong va, ulong size)
         {
@@ -386,6 +422,11 @@ namespace Ryujinx.Cpu.Jit
                 return Enumerable.Empty<MemoryRange>();
             }
 
+            return GetPhysicalRegionsImpl(va, size);
+        }
+
+        private List<MemoryRange> GetPhysicalRegionsImpl(ulong va, ulong size)
+        {
             if (!ValidateAddress(va) || !ValidateAddressAndSize(va, size))
             {
                 return null;

Ryujinx.Cpu/Jit/MemoryManagerHostMapped.cs

@@ -5,6 +5,7 @@ using Ryujinx.Memory.Range;
 using Ryujinx.Memory.Tracking;
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Runtime.CompilerServices;
 using System.Threading;
 
@@ -37,20 +38,21 @@ namespace Ryujinx.Cpu.Jit
         private readonly InvalidAccessHandler _invalidAccessHandler;
         private readonly bool _unsafeMode;
 
-        private readonly MemoryBlock _addressSpace;
+        private readonly AddressSpace _addressSpace;
-        private readonly MemoryBlock _addressSpaceMirror;
         private readonly ulong _addressSpaceSize;
 
-        private readonly MemoryBlock _backingMemory;
         private readonly PageTable<ulong> _pageTable;
 
         private readonly MemoryEhMeilleure _memoryEh;
 
         private readonly ulong[] _pageBitmap;
 
+        /// <inheritdoc/>
+        public bool Supports4KBPages => MemoryBlock.GetPageSize() == PageSize;
+
         public int AddressSpaceBits { get; }
 
-        public IntPtr PageTablePointer => _addressSpace.Pointer;
+        public IntPtr PageTablePointer => _addressSpace.Base.Pointer;
 
         public MemoryManagerType Type => _unsafeMode ? MemoryManagerType.HostMappedUnsafe : MemoryManagerType.HostMapped;
 
@@ -67,7 +69,6 @@ namespace Ryujinx.Cpu.Jit
         /// <param name="invalidAccessHandler">Optional function to handle invalid memory accesses</param>
         public MemoryManagerHostMapped(MemoryBlock backingMemory, ulong addressSpaceSize, bool unsafeMode, InvalidAccessHandler invalidAccessHandler = null)
         {
-            _backingMemory = backingMemory;
             _pageTable = new PageTable<ulong>();
             _invalidAccessHandler = invalidAccessHandler;
             _unsafeMode = unsafeMode;
@@ -86,13 +87,10 @@ namespace Ryujinx.Cpu.Jit
 
             _pageBitmap = new ulong[1 << (AddressSpaceBits - (PageBits + PageToPteShift))];
 
-            MemoryAllocationFlags asFlags = MemoryAllocationFlags.Reserve | MemoryAllocationFlags.ViewCompatible;
+            _addressSpace = new AddressSpace(backingMemory, asSize, Supports4KBPages);
 
-            _addressSpace = new MemoryBlock(asSize, asFlags);
+            Tracking = new MemoryTracking(this, (int)MemoryBlock.GetPageSize(), invalidAccessHandler);
-            _addressSpaceMirror = new MemoryBlock(asSize, asFlags);
+            _memoryEh = new MemoryEhMeilleure(_addressSpace.Base, _addressSpace.Mirror, Tracking);
-
-            Tracking = new MemoryTracking(this, PageSize, invalidAccessHandler);
-            _memoryEh = new MemoryEhMeilleure(_addressSpace, _addressSpaceMirror, Tracking);
         }
 
         /// <summary>
@@ -145,18 +143,23 @@ namespace Ryujinx.Cpu.Jit
         }
 
         /// <inheritdoc/>
-        public void Map(ulong va, ulong pa, ulong size)
+        public void Map(ulong va, ulong pa, ulong size, MemoryMapFlags flags)
         {
             AssertValidAddressAndSize(va, size);
 
-            _addressSpace.MapView(_backingMemory, pa, va, size);
+            _addressSpace.Map(va, pa, size, flags);
-            _addressSpaceMirror.MapView(_backingMemory, pa, va, size);
             AddMapping(va, size);
             PtMap(va, pa, size);
 
             Tracking.Map(va, size);
         }
 
+        /// <inheritdoc/>
+        public void MapForeign(ulong va, nuint hostPointer, ulong size)
+        {
+            throw new NotSupportedException();
+        }
+
         /// <inheritdoc/>
         public void Unmap(ulong va, ulong size)
         {
@@ -167,8 +170,7 @@ namespace Ryujinx.Cpu.Jit
 
             RemoveMapping(va, size);
             PtUnmap(va, size);
-            _addressSpace.UnmapView(_backingMemory, va, size);
+            _addressSpace.Unmap(va, size);
-            _addressSpaceMirror.UnmapView(_backingMemory, va, size);
         }
 
         private void PtMap(ulong va, ulong pa, ulong size)
@@ -201,7 +203,7 @@ namespace Ryujinx.Cpu.Jit
             {
                 AssertMapped(va, (ulong)Unsafe.SizeOf<T>());
 
-                return _addressSpaceMirror.Read<T>(va);
+                return _addressSpace.Mirror.Read<T>(va);
             }
             catch (InvalidMemoryRegionException)
             {
@@ -241,7 +243,7 @@ namespace Ryujinx.Cpu.Jit
             {
                 AssertMapped(va, (ulong)data.Length);
 
-                _addressSpaceMirror.Read(va, data);
+                _addressSpace.Mirror.Read(va, data);
             }
             catch (InvalidMemoryRegionException)
             {
@@ -260,7 +262,7 @@ namespace Ryujinx.Cpu.Jit
             {
                 SignalMemoryTracking(va, (ulong)Unsafe.SizeOf<T>(), write: true);
 
-                _addressSpaceMirror.Write(va, value);
+                _addressSpace.Mirror.Write(va, value);
             }
             catch (InvalidMemoryRegionException)
             {
@@ -278,7 +280,7 @@ namespace Ryujinx.Cpu.Jit
             {
                 SignalMemoryTracking(va, (ulong)data.Length, write: true);
 
-                _addressSpaceMirror.Write(va, data);
+                _addressSpace.Mirror.Write(va, data);
             }
             catch (InvalidMemoryRegionException)
             {
@@ -296,7 +298,7 @@ namespace Ryujinx.Cpu.Jit
             {
                 AssertMapped(va, (ulong)data.Length);
 
-                _addressSpaceMirror.Write(va, data);
+                _addressSpace.Mirror.Write(va, data);
             }
             catch (InvalidMemoryRegionException)
             {
@@ -314,7 +316,7 @@ namespace Ryujinx.Cpu.Jit
             {
                 SignalMemoryTracking(va, (ulong)data.Length, false);
 
-                Span<byte> target = _addressSpaceMirror.GetSpan(va, data.Length);
+                Span<byte> target = _addressSpace.Mirror.GetSpan(va, data.Length);
                 bool changed = !data.SequenceEqual(target);
 
                 if (changed)
@@ -347,7 +349,7 @@ namespace Ryujinx.Cpu.Jit
                 AssertMapped(va, (ulong)size);
             }
 
-            return _addressSpaceMirror.GetSpan(va, size);
+            return _addressSpace.Mirror.GetSpan(va, size);
         }
 
         /// <inheritdoc/>
@@ -362,7 +364,7 @@ namespace Ryujinx.Cpu.Jit
                 AssertMapped(va, (ulong)size);
             }
 
-            return _addressSpaceMirror.GetWritableRegion(va, size);
+            return _addressSpace.Mirror.GetWritableRegion(va, size);
         }
 
         /// <inheritdoc/>
@@ -370,7 +372,7 @@ namespace Ryujinx.Cpu.Jit
         {
             SignalMemoryTracking(va, (ulong)Unsafe.SizeOf<T>(), true);
 
-            return ref _addressSpaceMirror.GetRef<T>(va);
+            return ref _addressSpace.Mirror.GetRef<T>(va);
         }
 
         /// <inheritdoc/>
@@ -454,6 +456,14 @@ namespace Ryujinx.Cpu.Jit
             return true;
         }
 
+        /// <inheritdoc/>
+        public IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size)
+        {
+            AssertValidAddressAndSize(va, size);
+
+            return Enumerable.Repeat(new HostMemoryRange((nuint)(ulong)_addressSpace.Mirror.GetPointer(va, size), size), 1);
+        }
+
         /// <inheritdoc/>
         public IEnumerable<MemoryRange> GetPhysicalRegions(ulong va, ulong size)
         {
@@ -692,7 +702,7 @@ namespace Ryujinx.Cpu.Jit
                 _ => MemoryPermission.None
             };
 
-            _addressSpace.Reprotect(va, size, protection, false);
+            _addressSpace.Base.Reprotect(va, size, protection, false);
         }
 
         /// <inheritdoc/>
@@ -799,7 +809,6 @@ namespace Ryujinx.Cpu.Jit
         protected override void Destroy()
         {
             _addressSpace.Dispose();
-            _addressSpaceMirror.Dispose();
             _memoryEh.Dispose();
         }
 

Ryujinx.Cpu/PrivateMemoryAllocation.cs

@@ -0,0 +1,41 @@
+using Ryujinx.Memory;
+using System;
+
+namespace Ryujinx.Cpu
+{
+    struct PrivateMemoryAllocation : IDisposable
+    {
+        private readonly PrivateMemoryAllocator _owner;
+        private readonly PrivateMemoryAllocator.Block _block;
+
+        public bool IsValid => _owner != null;
+        public MemoryBlock Memory => _block?.Memory;
+        public ulong Offset { get; }
+        public ulong Size { get; }
+
+        public PrivateMemoryAllocation(
+            PrivateMemoryAllocator owner,
+            PrivateMemoryAllocator.Block block,
+            ulong offset,
+            ulong size)
+        {
+            _owner = owner;
+            _block = block;
+            Offset = offset;
+            Size = size;
+        }
+
+        public (PrivateMemoryAllocation, PrivateMemoryAllocation) Split(ulong splitOffset)
+        {
+            PrivateMemoryAllocation left = new PrivateMemoryAllocation(_owner, _block, Offset, splitOffset);
+            PrivateMemoryAllocation right = new PrivateMemoryAllocation(_owner, _block, Offset + splitOffset, Size - splitOffset);
+
+            return (left, right);
+        }
+
+        public void Dispose()
+        {
+            _owner.Free(_block, Offset, Size);
+        }
+    }
+}

Ryujinx.Cpu/PrivateMemoryAllocator.cs

@@ -0,0 +1,268 @@
+using Ryujinx.Common;
+using Ryujinx.Memory;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+
+namespace Ryujinx.Cpu
+{
+    class PrivateMemoryAllocator : PrivateMemoryAllocatorImpl<PrivateMemoryAllocator.Block>
+    {
+        public const ulong InvalidOffset = ulong.MaxValue;
+
+        public class Block : IComparable<Block>
+        {
+            public MemoryBlock Memory { get; private set; }
+            public ulong Size { get; }
+
+            private struct Range : IComparable<Range>
+            {
+                public ulong Offset { get; }
+                public ulong Size { get; }
+
+                public Range(ulong offset, ulong size)
+                {
+                    Offset = offset;
+                    Size = size;
+                }
+
+                public int CompareTo(Range other)
+                {
+                    return Offset.CompareTo(other.Offset);
+                }
+            }
+
+            private readonly List<Range> _freeRanges;
+
+            public Block(MemoryBlock memory, ulong size)
+            {
+                Memory = memory;
+                Size = size;
+                _freeRanges = new List<Range>
+                {
+                    new Range(0, size)
+                };
+            }
+
+            public ulong Allocate(ulong size, ulong alignment)
+            {
+                for (int i = 0; i < _freeRanges.Count; i++)
+                {
+                    var range = _freeRanges[i];
+
+                    ulong alignedOffset = BitUtils.AlignUp(range.Offset, alignment);
+                    ulong sizeDelta = alignedOffset - range.Offset;
+                    ulong usableSize = range.Size - sizeDelta;
+
+                    if (sizeDelta < range.Size && usableSize >= size)
+                    {
+                        _freeRanges.RemoveAt(i);
+
+                        if (sizeDelta != 0)
+                        {
+                            InsertFreeRange(range.Offset, sizeDelta);
+                        }
+
+                        ulong endOffset = range.Offset + range.Size;
+                        ulong remainingSize = endOffset - (alignedOffset + size);
+                        if (remainingSize != 0)
+                        {
+                            InsertFreeRange(endOffset - remainingSize, remainingSize);
+                        }
+
+                        return alignedOffset;
+                    }
+                }
+
+                return InvalidOffset;
+            }
+
+            public void Free(ulong offset, ulong size)
+            {
+                InsertFreeRangeComingled(offset, size);
+            }
+
+            private void InsertFreeRange(ulong offset, ulong size)
+            {
+                var range = new Range(offset, size);
+                int index = _freeRanges.BinarySearch(range);
+                if (index < 0)
+                {
+                    index = ~index;
+                }
+
+                _freeRanges.Insert(index, range);
+            }
+
+            private void InsertFreeRangeComingled(ulong offset, ulong size)
+            {
+                ulong endOffset = offset + size;
+                var range = new Range(offset, size);
+                int index = _freeRanges.BinarySearch(range);
+                if (index < 0)
+                {
+                    index = ~index;
+                }
+
+                if (index < _freeRanges.Count && _freeRanges[index].Offset == endOffset)
+                {
+                    endOffset = _freeRanges[index].Offset + _freeRanges[index].Size;
+                    _freeRanges.RemoveAt(index);
+                }
+
+                if (index > 0 && _freeRanges[index - 1].Offset + _freeRanges[index - 1].Size == offset)
+                {
+                    offset = _freeRanges[index - 1].Offset;
+                    _freeRanges.RemoveAt(--index);
+                }
+
+                range = new Range(offset, endOffset - offset);
+
+                _freeRanges.Insert(index, range);
+            }
+
+            public bool IsTotallyFree()
+            {
+                if (_freeRanges.Count == 1 && _freeRanges[0].Size == Size)
+                {
+                    Debug.Assert(_freeRanges[0].Offset == 0);
+                    return true;
+                }
+
+                return false;
+            }
+
+            public int CompareTo(Block other)
+            {
+                return Size.CompareTo(other.Size);
+            }
+
+            public virtual void Destroy()
+            {
+                Memory.Dispose();
+            }
+        }
+
+        public PrivateMemoryAllocator(int blockAlignment, MemoryAllocationFlags allocationFlags) : base(blockAlignment, allocationFlags)
+        {
+        }
+
+        public PrivateMemoryAllocation Allocate(ulong size, ulong alignment)
+        {
+            var allocation = Allocate(size, alignment, CreateBlock);
+
+            return new PrivateMemoryAllocation(this, allocation.Block, allocation.Offset, allocation.Size);
+        }
+
+        private Block CreateBlock(MemoryBlock memory, ulong size)
+        {
+            return new Block(memory, size);
+        }
+    }
+
+    class PrivateMemoryAllocatorImpl<T> : IDisposable where T : PrivateMemoryAllocator.Block
+    {
+        private const ulong InvalidOffset = ulong.MaxValue;
+
+        public struct Allocation
+        {
+            public T Block { get; }
+            public ulong Offset { get; }
+            public ulong Size { get; }
+
+            public Allocation(T block, ulong offset, ulong size)
+            {
+                Block = block;
+                Offset = offset;
+                Size = size;
+            }
+        }
+
+        private readonly List<T> _blocks;
+
+        private readonly int _blockAlignment;
+        private readonly MemoryAllocationFlags _allocationFlags;
+
+        public PrivateMemoryAllocatorImpl(int blockAlignment, MemoryAllocationFlags allocationFlags)
+        {
+            _blocks = new List<T>();
+            _blockAlignment = blockAlignment;
+            _allocationFlags = allocationFlags;
+        }
+
+        protected Allocation Allocate(ulong size, ulong alignment, Func<MemoryBlock, ulong, T> createBlock)
+        {
+            // Ensure we have a sane alignment value.
+            if ((ulong)(int)alignment != alignment || (int)alignment <= 0)
+            {
+                throw new ArgumentOutOfRangeException(nameof(alignment), $"Invalid alignment 0x{alignment:X}.");
+            }
+
+            for (int i = 0; i < _blocks.Count; i++)
+            {
+                var block = _blocks[i];
+
+                if (block.Size >= size)
+                {
+                    ulong offset = block.Allocate(size, alignment);
+                    if (offset != InvalidOffset)
+                    {
+                        return new Allocation(block, offset, size);
+                    }
+                }
+            }
+
+            ulong blockAlignedSize = BitUtils.AlignUp(size, (ulong)_blockAlignment);
+
+            var memory = new MemoryBlock(blockAlignedSize, _allocationFlags);
+            var newBlock = createBlock(memory, blockAlignedSize);
+
+            InsertBlock(newBlock);
+
+            ulong newBlockOffset = newBlock.Allocate(size, alignment);
+            Debug.Assert(newBlockOffset != InvalidOffset);
+
+            return new Allocation(newBlock, newBlockOffset, size);
+        }
+
+        public void Free(PrivateMemoryAllocator.Block block, ulong offset, ulong size)
+        {
+            block.Free(offset, size);
+
+            if (block.IsTotallyFree())
+            {
+                for (int i = 0; i < _blocks.Count; i++)
+                {
+                    if (_blocks[i] == block)
+                    {
+                        _blocks.RemoveAt(i);
+                        break;
+                    }
+                }
+
+                block.Destroy();
+            }
+        }
+
+        private void InsertBlock(T block)
+        {
+            int index = _blocks.BinarySearch(block);
+            if (index < 0)
+            {
+                index = ~index;
+            }
+
+            _blocks.Insert(index, block);
+        }
+
+        public void Dispose()
+        {
+            for (int i = 0; i < _blocks.Count; i++)
+            {
+                _blocks[i].Destroy();
+            }
+
+            _blocks.Clear();
+        }
+    }
+}

Ryujinx.Graphics.Gpu/Image/AutoDeleteCache.cs

@@ -4,6 +4,28 @@ using System.Collections.Generic;
 
 namespace Ryujinx.Graphics.Gpu.Image
 {
+    /// <summary>
+    /// An entry on the short duration texture cache.
+    /// </summary>
+    class ShortTextureCacheEntry
+    {
+        public readonly TextureDescriptor Descriptor;
+        public readonly int InvalidatedSequence;
+        public readonly Texture Texture;
+
+        /// <summary>
+        /// Create a new entry on the short duration texture cache.
+        /// </summary>
+        /// <param name="descriptor">Last descriptor that referenced the texture</param>
+        /// <param name="texture">The texture</param>
+        public ShortTextureCacheEntry(TextureDescriptor descriptor, Texture texture)
+        {
+            Descriptor = descriptor;
+            InvalidatedSequence = texture.InvalidatedSequence;
+            Texture = texture;
+        }
+    }
+
     /// <summary>
     /// A texture cache that automatically removes older textures that are not used for some time.
     /// The cache works with a rotated list with a fixed size. When new textures are added, the
@@ -16,6 +38,11 @@ namespace Ryujinx.Graphics.Gpu.Image
         private readonly LinkedList<Texture> _textures;
         private readonly ConcurrentQueue<Texture> _deferredRemovals;
 
+        private HashSet<ShortTextureCacheEntry> _shortCacheBuilder;
+        private HashSet<ShortTextureCacheEntry> _shortCache;
+
+        private Dictionary<TextureDescriptor, ShortTextureCacheEntry> _shortCacheLookup;
+
         /// <summary>
         /// Creates a new instance of the automatic deletion cache.
         /// </summary>
@@ -23,6 +50,11 @@ namespace Ryujinx.Graphics.Gpu.Image
         {
             _textures = new LinkedList<Texture>();
             _deferredRemovals = new ConcurrentQueue<Texture>();
+
+            _shortCacheBuilder = new HashSet<ShortTextureCacheEntry>();
+            _shortCache = new HashSet<ShortTextureCacheEntry>();
+
+            _shortCacheLookup = new Dictionary<TextureDescriptor, ShortTextureCacheEntry>();
         }
 
         /// <summary>
@@ -130,6 +162,85 @@ namespace Ryujinx.Graphics.Gpu.Image
             _deferredRemovals.Enqueue(texture);
         }
 
+        /// <summary>
+        /// Attempt to find a texture on the short duration cache.
+        /// </summary>
+        /// <param name="descriptor">The texture descriptor</param>
+        /// <returns>The texture if found, null otherwise</returns>
+        public Texture FindShortCache(in TextureDescriptor descriptor)
+        {
+            if (_shortCacheLookup.Count > 0 && _shortCacheLookup.TryGetValue(descriptor, out var entry))
+            {
+                if (entry.InvalidatedSequence == entry.Texture.InvalidatedSequence)
+                {
+                    return entry.Texture;
+                }
+                else
+                {
+                    _shortCacheLookup.Remove(descriptor);
+                }
+            }
+
+            return null;
+        }
+
+        /// <summary>
+        /// Removes a texture from the short duration cache.
+        /// </summary>
+        /// <param name="texture">Texture to remove from the short cache</param>
+        public void RemoveShortCache(Texture texture)
+        {
+            bool removed = _shortCache.Remove(texture.ShortCacheEntry);
+            removed |= _shortCacheBuilder.Remove(texture.ShortCacheEntry);
+
+            if (removed)
+            {
+                texture.DecrementReferenceCount();
+
+                _shortCacheLookup.Remove(texture.ShortCacheEntry.Descriptor);
+                texture.ShortCacheEntry = null;
+            }
+        }
+
+        /// <summary>
+        /// Adds a texture to the short duration cache.
+        /// It starts in the builder set, and it is moved into the deletion set on next process.
+        /// </summary>
+        /// <param name="texture">Texture to add to the short cache</param>
+        /// <param name="descriptor">Last used texture descriptor</param>
+        public void AddShortCache(Texture texture, ref TextureDescriptor descriptor)
+        {
+            var entry = new ShortTextureCacheEntry(descriptor, texture);
+
+            _shortCacheBuilder.Add(entry);
+            _shortCacheLookup.Add(entry.Descriptor, entry);
+
+            texture.ShortCacheEntry = entry;
+
+            texture.IncrementReferenceCount();
+        }
+
+        /// <summary>
+        /// Delete textures from the short duration cache.
+        /// Moves the builder set to be deleted on next process.
+        /// </summary>
+        public void ProcessShortCache()
+        {
+            HashSet<ShortTextureCacheEntry> toRemove = _shortCache;
+
+            foreach (var entry in toRemove)
+            {
+                entry.Texture.DecrementReferenceCount();
+
+                _shortCacheLookup.Remove(entry.Descriptor);
+                entry.Texture.ShortCacheEntry = null;
+            }
+
+            toRemove.Clear();
+            _shortCache = _shortCacheBuilder;
+            _shortCacheBuilder = toRemove;
+        }
+
         public IEnumerator<Texture> GetEnumerator()
         {
             return _textures.GetEnumerator();

Ryujinx.Graphics.Gpu/Image/Pool.cs

@@ -91,7 +91,17 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// <returns>A reference to the descriptor</returns>
         public ref readonly T2 GetDescriptorRef(int id)
         {
-            return ref MemoryMarshal.Cast<byte, T2>(PhysicalMemory.GetSpan(Address + (ulong)id * DescriptorSize, DescriptorSize))[0];
+            return ref GetDescriptorRefAddress(Address + (ulong)id * DescriptorSize);
+        }
+
+        /// <summary>
+        /// Gets a reference to the descriptor for a given address.
+        /// </summary>
+        /// <param name="address">Address of the descriptor</param>
+        /// <returns>A reference to the descriptor</returns>
+        public ref readonly T2 GetDescriptorRefAddress(ulong address)
+        {
+            return ref MemoryMarshal.Cast<byte, T2>(PhysicalMemory.GetSpan(address, DescriptorSize))[0];
         }
 
         /// <summary>

Ryujinx.Graphics.Gpu/Image/Texture.cs

@@ -138,6 +138,10 @@ namespace Ryujinx.Graphics.Gpu.Image
         public LinkedListNode<Texture> CacheNode { get; set; }
 
         /// <summary>
+        /// Entry for this texture in the short duration cache, if present.
+        /// </summary>
+        public ShortTextureCacheEntry ShortCacheEntry { get; set; }
+
         /// Physical memory ranges where the texture data is located.
         /// </summary>
         public MultiRange Range { get; private set; }
@@ -1555,6 +1559,20 @@ namespace Ryujinx.Graphics.Gpu.Image
                 _poolOwners.Add(new TexturePoolOwner { Pool = pool, ID = id });
             }
             _referenceCount++;
+
+            if (ShortCacheEntry != null)
+            {
+                _physicalMemory.TextureCache.RemoveShortCache(this);
+            }
+        }
+
+        /// <summary>
+        /// Indicates that the texture has one reference left, and will delete on reference decrement.
+        /// </summary>
+        /// <returns>True if there is one reference remaining, false otherwise</returns>
+        public bool HasOneReference()
+        {
+            return _referenceCount == 1;
         }
 
         /// <summary>
@@ -1624,6 +1642,14 @@ namespace Ryujinx.Graphics.Gpu.Image
                 _poolOwners.Clear();
             }
 
+            if (ShortCacheEntry != null && _context.IsGpuThread())
+            {
+                // If this is called from another thread (unmapped), the short cache will
+                // have to remove this texture on a future tick.
+
+                _physicalMemory.TextureCache.RemoveShortCache(this);
+            }
+
             InvalidatedSequence++;
         }
 

Ryujinx.Graphics.Gpu/Image/TextureCache.cs

@@ -894,6 +894,16 @@ namespace Ryujinx.Graphics.Gpu.Image
             }
         }
 
+        /// <summary>
+        /// Attempt to find a texture on the short duration cache.
+        /// </summary>
+        /// <param name="descriptor">The texture descriptor</param>
+        /// <returns>The texture if found, null otherwise</returns>
+        public Texture FindShortCache(in TextureDescriptor descriptor)
+        {
+            return _cache.FindShortCache(descriptor);
+        }
+
         /// <summary>
         /// Tries to find an existing texture matching the given buffer copy destination. If none is found, returns null.
         /// </summary>
@@ -1178,6 +1188,33 @@ namespace Ryujinx.Graphics.Gpu.Image
             _cache.RemoveDeferred(texture);
         }
 
+        /// <summary>
+        /// Adds a texture to the short duration cache. This typically keeps it alive for two ticks.
+        /// </summary>
+        /// <param name="texture">Texture to add to the short cache</param>
+        /// <param name="descriptor">Last used texture descriptor</param>
+        public void AddShortCache(Texture texture, ref TextureDescriptor descriptor)
+        {
+            _cache.AddShortCache(texture, ref descriptor);
+        }
+
+        /// <summary>
+        /// Removes a texture from the short duration cache.
+        /// </summary>
+        /// <param name="texture">Texture to remove from the short cache</param>
+        public void RemoveShortCache(Texture texture)
+        {
+            _cache.RemoveShortCache(texture);
+        }
+
+        /// <summary>
+        /// Ticks periodic elements of the texture cache.
+        /// </summary>
+        public void Tick()
+        {
+            _cache.ProcessShortCache();
+        }
+
         /// <summary>
         /// Disposes all textures and samplers in the cache.
         /// It's an error to use the texture cache after disposal.

Ryujinx.Graphics.Gpu/Image/TextureDescriptor.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Runtime.CompilerServices;
 using System.Runtime.Intrinsics;
 
@@ -6,7 +7,7 @@ namespace Ryujinx.Graphics.Gpu.Image
     /// <summary>
     /// Maxwell texture descriptor, as stored on the GPU texture pool memory region.
     /// </summary>
-    struct TextureDescriptor : ITextureDescriptor
+    struct TextureDescriptor : ITextureDescriptor, IEquatable<TextureDescriptor>
     {
 #pragma warning disable CS0649
         public uint Word0;
@@ -249,5 +250,24 @@ namespace Ryujinx.Graphics.Gpu.Image
         {
             return Unsafe.As<TextureDescriptor, Vector256<byte>>(ref this).Equals(Unsafe.As<TextureDescriptor, Vector256<byte>>(ref other));
         }
+
+        /// <summary>
+        /// Check if two descriptors are equal.
+        /// </summary>
+        /// <param name="other">The descriptor to compare against</param>
+        /// <returns>True if they are equal, false otherwise</returns>
+        public bool Equals(TextureDescriptor other)
+        {
+            return Equals(ref other);
+        }
+
+        /// <summary>
+        /// Gets a hash code for this descriptor.
+        /// </summary>
+        /// <returns>The hash code for this descriptor.</returns>
+        public override int GetHashCode()
+        {
+            return Unsafe.As<TextureDescriptor, Vector256<byte>>(ref this).GetHashCode();
+        }
     }
 }

Ryujinx.Graphics.Gpu/Image/TextureGroup.cs

@@ -1420,6 +1420,14 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// <param name="size">The size of the flushing memory access</param>
         public void FlushAction(TextureGroupHandle handle, ulong address, ulong size)
         {
+            // If the page size is larger than 4KB, we will have a lot of false positives for flushing.
+            // Let's avoid flushing textures that are unlikely to be read from CPU to improve performance
+            // on those platforms.
+            if (!_physicalMemory.Supports4KBPages && !Storage.Info.IsLinear && !_context.IsGpuThread())
+            {
+                return;
+            }
+
             // There is a small gap here where the action is removed but _actionRegistered is still 1.
             // In this case it will skip registering the action, but here we are already handling it,
             // so there shouldn't be any issue as it's the same handler for all actions.

Ryujinx.Graphics.Gpu/Image/TexturePool.cs

@@ -52,16 +52,21 @@ namespace Ryujinx.Graphics.Gpu.Image
 
             if (texture == null)
             {
-                TextureInfo info = GetInfo(descriptor, out int layerSize);
+                texture = PhysicalMemory.TextureCache.FindShortCache(descriptor);
 
-                ProcessDereferenceQueue();
-
-                texture = PhysicalMemory.TextureCache.FindOrCreateTexture(_channel.MemoryManager, TextureSearchFlags.ForSampler, info, layerSize);
-
-                // If this happens, then the texture address is invalid, we can't add it to the cache.
                 if (texture == null)
                 {
-                    return ref descriptor;
+                    TextureInfo info = GetInfo(descriptor, out int layerSize);
+
+                    ProcessDereferenceQueue();
+
+                    texture = PhysicalMemory.TextureCache.FindOrCreateTexture(_channel.MemoryManager, TextureSearchFlags.ForSampler, info, layerSize);
+
+                    // If this happens, then the texture address is invalid, we can't add it to the cache.
+                    if (texture == null)
+                    {
+                        return ref descriptor;
+                    }
                 }
 
                 texture.IncrementReferenceCount(this, id);
@@ -208,15 +213,21 @@ namespace Ryujinx.Graphics.Gpu.Image
 
                 if (texture != null)
                 {
-                    TextureDescriptor descriptor = PhysicalMemory.Read<TextureDescriptor>(address);
+                    ref TextureDescriptor cachedDescriptor = ref DescriptorCache[id];
+                    ref readonly TextureDescriptor descriptor = ref GetDescriptorRefAddress(address);
 
                     // If the descriptors are the same, the texture is the same,
                     // we don't need to remove as it was not modified. Just continue.
-                    if (descriptor.Equals(ref DescriptorCache[id]))
+                    if (descriptor.Equals(ref cachedDescriptor))
                     {
                         continue;
                     }
 
+                    if (texture.HasOneReference())
+                    {
+                        _channel.MemoryManager.Physical.TextureCache.AddShortCache(texture, ref cachedDescriptor);
+                    }
+
                     texture.DecrementReferenceCount(this, id);
 
                     Items[id] = null;

Ryujinx.Graphics.Gpu/Memory/Buffer.cs

@@ -470,19 +470,16 @@ namespace Ryujinx.Graphics.Gpu.Memory
                 return false;
             }
 
-            if (address < Address)
+            ulong maxAddress = Math.Max(address, Address);
+            ulong minEndAddress = Math.Min(address + size, Address + Size);
+
+            if (maxAddress >= minEndAddress)
             {
-                address = Address;
+                // Access doesn't overlap.
+                return false;
             }
 
-            ulong maxSize = Address + Size - address;
+            ForceDirty(maxAddress, minEndAddress - maxAddress);
-
-            if (size > maxSize)
-            {
-                size = maxSize;
-            }
-
-            ForceDirty(address, size);
 
             return true;
         }

Ryujinx.Graphics.Gpu/Memory/PhysicalMemory.cs

@@ -21,6 +21,11 @@ namespace Ryujinx.Graphics.Gpu.Memory
         private IVirtualMemoryManagerTracked _cpuMemory;
         private int _referenceCount;
 
+        /// <summary>
+        /// Indicates whenever the memory manager supports 4KB pages.
+        /// </summary>
+        public bool Supports4KBPages => _cpuMemory.Supports4KBPages;
+
         /// <summary>
         /// In-memory shader cache.
         /// </summary>

Ryujinx.Graphics.Gpu/Window.cs

@@ -204,6 +204,8 @@ namespace Ryujinx.Graphics.Gpu
 
                 Texture texture = pt.Cache.FindOrCreateTexture(null, TextureSearchFlags.WithUpscale, pt.Info, 0, null, pt.Range);
 
+                pt.Cache.Tick();
+
                 texture.SynchronizeMemory();
 
                 ImageCrop crop = pt.Crop;

Ryujinx.Graphics.Vulkan/TextureStorage.cs

@@ -79,21 +79,7 @@ namespace Ryujinx.Graphics.Vulkan
 
             var sampleCountFlags = ConvertToSampleCountFlags(gd.Capabilities.SupportedSampleCounts, (uint)info.Samples);
 
-            var usage = DefaultUsageFlags;
+            var usage = GetImageUsageFromFormat(info.Format);
-
-            if (info.Format.IsDepthOrStencil())
-            {
-                usage |= ImageUsageFlags.DepthStencilAttachmentBit;
-            }
-            else if (info.Format.IsRtColorCompatible())
-            {
-                usage |= ImageUsageFlags.ColorAttachmentBit;
-            }
-
-            if (info.Format.IsImageCompatible())
-            {
-                usage |= ImageUsageFlags.StorageBit;
-            }
 
             var flags = ImageCreateFlags.CreateMutableFormatBit;
 
@@ -306,6 +292,27 @@ namespace Ryujinx.Graphics.Vulkan
             }
         }
 
+        public static ImageUsageFlags GetImageUsageFromFormat(GAL.Format format)
+        {
+            var usage = DefaultUsageFlags;
+
+            if (format.IsDepthOrStencil())
+            {
+                usage |= ImageUsageFlags.DepthStencilAttachmentBit;
+            }
+            else if (format.IsRtColorCompatible())
+            {
+                usage |= ImageUsageFlags.ColorAttachmentBit;
+            }
+
+            if (format.IsImageCompatible())
+            {
+                usage |= ImageUsageFlags.StorageBit;
+            }
+
+            return usage;
+        }
+
         public static SampleCountFlags ConvertToSampleCountFlags(SampleCountFlags supportedSampleCounts, uint samples)
         {
             if (samples == 0 || samples > (uint)SampleCountFlags.Count64Bit)

Ryujinx.Graphics.Vulkan/TextureView.cs

@@ -54,6 +54,7 @@ namespace Ryujinx.Graphics.Vulkan
             gd.Textures.Add(this);
 
             var format = _gd.FormatCapabilities.ConvertToVkFormat(info.Format);
+            var usage = TextureStorage.GetImageUsageFromFormat(info.Format);
             var levels = (uint)info.Levels;
             var layers = (uint)info.GetLayers();
 
@@ -94,7 +95,7 @@ namespace Ryujinx.Graphics.Vulkan
             var subresourceRange = new ImageSubresourceRange(aspectFlags, (uint)firstLevel, levels, (uint)firstLayer, layers);
             var subresourceRangeDepth = new ImageSubresourceRange(aspectFlagsDepth, (uint)firstLevel, levels, (uint)firstLayer, layers);
 
-            unsafe Auto<DisposableImageView> CreateImageView(ComponentMapping cm, ImageSubresourceRange sr, ImageViewType viewType, ImageUsageFlags usageFlags = 0)
+            unsafe Auto<DisposableImageView> CreateImageView(ComponentMapping cm, ImageSubresourceRange sr, ImageViewType viewType, ImageUsageFlags usageFlags)
             {
                 var usage = new ImageViewUsageCreateInfo()
                 {
@@ -110,14 +111,14 @@ namespace Ryujinx.Graphics.Vulkan
                     Format = format,
                     Components = cm,
                     SubresourceRange = sr,
-                    PNext = usageFlags == 0 ? null : &usage
+                    PNext = &usage
                 };
 
                 gd.Api.CreateImageView(device, imageCreateInfo, null, out var imageView).ThrowOnError();
                 return new Auto<DisposableImageView>(new DisposableImageView(gd.Api, device, imageView), null, storage.GetImage());
             }
 
-            _imageView = CreateImageView(componentMapping, subresourceRange, type);
+            _imageView = CreateImageView(componentMapping, subresourceRange, type, ImageUsageFlags.SampledBit);
 
             // Framebuffer attachments and storage images requires a identity component mapping.
             var identityComponentMapping = new ComponentMapping(
@@ -126,7 +127,7 @@ namespace Ryujinx.Graphics.Vulkan
                 ComponentSwizzle.B,
                 ComponentSwizzle.A);
 
-            _imageViewIdentity = CreateImageView(identityComponentMapping, subresourceRangeDepth, type);
+            _imageViewIdentity = CreateImageView(identityComponentMapping, subresourceRangeDepth, type, usage);
 
             // Framebuffer attachments also require 3D textures to be bound as 2D array.
             if (info.Target == Target.Texture3D)
@@ -144,7 +145,7 @@ namespace Ryujinx.Graphics.Vulkan
                 {
                     subresourceRange = new ImageSubresourceRange(aspectFlags, (uint)firstLevel, levels, (uint)firstLayer, (uint)info.Depth);
 
-                    _imageView2dArray = CreateImageView(identityComponentMapping, subresourceRange, ImageViewType.Type2DArray);
+                    _imageView2dArray = CreateImageView(identityComponentMapping, subresourceRange, ImageViewType.Type2DArray, usage);
                 }
             }
 

Ryujinx.HLE/FileSystem/VirtualFileSystem.cs

@@ -16,6 +16,7 @@ using Ryujinx.Common.Logging;
 using Ryujinx.HLE.HOS;
 using System;
 using System.Buffers.Text;
+using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.IO;
 using System.Runtime.CompilerServices;
@@ -35,7 +36,8 @@ namespace Ryujinx.HLE.FileSystem
         public EmulatedGameCard GameCard  { get; private set; }
         public EmulatedSdCard   SdCard    { get; private set; }
         public ModLoader        ModLoader { get; private set; }
-        public Stream           RomFs     { get; private set; }
+
+        private readonly ConcurrentDictionary<ulong, Stream> _romFsByPid;
 
         private static bool _isInitialized = false;
 
@@ -55,17 +57,34 @@ namespace Ryujinx.HLE.FileSystem
         {
             ReloadKeySet();
             ModLoader = new ModLoader(); // Should only be created once
+            _romFsByPid = new ConcurrentDictionary<ulong, Stream>();
         }
 
-        public void LoadRomFs(string fileName)
+        public void LoadRomFs(ulong pid, string fileName)
         {
-            RomFs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
+            var romfsStream = new FileStream(fileName, FileMode.Open, FileAccess.Read);
+
+            _romFsByPid.AddOrUpdate(pid, romfsStream, (pid, oldStream) =>
+            {
+                oldStream.Close();
+
+                return romfsStream;
+            });
         }
 
-        public void SetRomFs(Stream romfsStream)
+        public void SetRomFs(ulong pid, Stream romfsStream)
         {
-            RomFs?.Close();
+            _romFsByPid.AddOrUpdate(pid, romfsStream, (pid, oldStream) =>
-            RomFs = romfsStream;
+            {
+                oldStream.Close();
+
+                return romfsStream;
+            });
+        }
+
+        public Stream GetRomFs(ulong pid)
+        {
+            return _romFsByPid[pid];
         }
 
         public string GetFullPath(string basePath, string fileName)
@@ -583,7 +602,12 @@ namespace Ryujinx.HLE.FileSystem
         {
             if (disposing)
             {
-                RomFs?.Dispose();
+                foreach (var stream in _romFsByPid.Values)
+                {
+                    stream.Close();
+                }
+
+                _romFsByPid.Clear();
             }
         }
     }

Ryujinx.HLE/HOS/ApplicationLoader.cs

@@ -76,11 +76,6 @@ namespace Ryujinx.HLE.HOS
 
         public void LoadCart(string exeFsDir, string romFsFile = null)
         {
-            if (romFsFile != null)
-            {
-                _device.Configuration.VirtualFileSystem.LoadRomFs(romFsFile);
-            }
-
             LocalFileSystem codeFs = new LocalFileSystem(exeFsDir);
 
             MetaLoader metaData = ReadNpdm(codeFs);
@@ -95,7 +90,12 @@ namespace Ryujinx.HLE.HOS
                 EnsureSaveData(new ApplicationId(TitleId));
             }
 
-            LoadExeFs(codeFs, string.Empty, metaData);
+            ulong pid = LoadExeFs(codeFs, string.Empty, metaData);
+
+            if (romFsFile != null)
+            {
+                _device.Configuration.VirtualFileSystem.LoadRomFs(pid, romFsFile);
+            }
         }
 
         public static (Nca main, Nca patch, Nca control) GetGameData(VirtualFileSystem fileSystem, PartitionFileSystem pfs, int programIndex)
@@ -491,6 +491,8 @@ namespace Ryujinx.HLE.HOS
 
             _displayVersion = displayVersion;
 
+            ulong pid = LoadExeFs(codeFs, displayVersion, metaData);
+
             if (dataStorage == null)
             {
                 Logger.Warning?.Print(LogClass.Loader, "No RomFS found in NCA");
@@ -499,7 +501,7 @@ namespace Ryujinx.HLE.HOS
             {
                 IStorage newStorage = _device.Configuration.VirtualFileSystem.ModLoader.ApplyRomFsMods(TitleId, dataStorage);
 
-                _device.Configuration.VirtualFileSystem.SetRomFs(newStorage.AsStream(FileAccess.Read));
+                _device.Configuration.VirtualFileSystem.SetRomFs(pid, newStorage.AsStream(FileAccess.Read));
             }
 
             // Don't create save data for system programs.
@@ -510,8 +512,6 @@ namespace Ryujinx.HLE.HOS
                 EnsureSaveData(new ApplicationId(TitleId & ~0xFul));
             }
 
-            LoadExeFs(codeFs, displayVersion, metaData);
-
             Logger.Info?.Print(LogClass.Loader, $"Application Loaded: {TitleName} v{DisplayVersion} [{TitleIdText}] [{(TitleIs64Bit ? "64-bit" : "32-bit")}]");
         }
 
@@ -579,7 +579,7 @@ namespace Ryujinx.HLE.HOS
             }
         }
 
-        private void LoadExeFs(IFileSystem codeFs, string displayVersion, MetaLoader metaData = null, bool isHomebrew = false)
+        private ulong LoadExeFs(IFileSystem codeFs, string displayVersion, MetaLoader metaData = null, bool isHomebrew = false)
         {
             if (_device.Configuration.VirtualFileSystem.ModLoader.ReplaceExefsPartition(TitleId, ref codeFs))
             {
@@ -654,6 +654,8 @@ namespace Ryujinx.HLE.HOS
             DiskCacheLoadState = result.DiskCacheLoadState;
 
             _device.Configuration.VirtualFileSystem.ModLoader.LoadCheats(TitleId, result.TamperInfo, _device.TamperMachine);
+
+            return result.ProcessId;
         }
 
         public void LoadProgram(string filePath)
@@ -665,6 +667,7 @@ namespace Ryujinx.HLE.HOS
             bool isNro = Path.GetExtension(filePath).ToLower() == ".nro";
 
             IExecutable executable;
+            Stream romfsStream = null;
 
             if (isNro)
             {
@@ -697,7 +700,7 @@ namespace Ryujinx.HLE.HOS
 
                             if (romfsSize != 0)
                             {
-                                _device.Configuration.VirtualFileSystem.SetRomFs(new HomebrewRomFsStream(input, obj.FileSize + (long)romfsOffset));
+                                romfsStream = new HomebrewRomFsStream(input, obj.FileSize + (long)romfsOffset);
                             }
 
                             if (nacpSize != 0)
@@ -758,6 +761,11 @@ namespace Ryujinx.HLE.HOS
 
             ProgramLoadResult result = ProgramLoader.LoadNsos(_device.System.KernelContext, metaData, programInfo, executables: executable);
 
+            if (romfsStream != null)
+            {
+                _device.Configuration.VirtualFileSystem.SetRomFs(result.ProcessId, romfsStream);
+            }
+
             DiskCacheLoadState = result.DiskCacheLoadState;
 
             _device.Configuration.VirtualFileSystem.ModLoader.LoadCheats(TitleId, result.TamperInfo, _device.TamperMachine);

Ryujinx.HLE/HOS/Kernel/KernelContext.cs

@@ -84,7 +84,7 @@ namespace Ryujinx.HLE.HOS.Kernel
                 KernelConstants.UserSlabHeapItemSize,
                 KernelConstants.UserSlabHeapSize);
 
-            memory.Commit(KernelConstants.UserSlabHeapBase - DramMemoryMap.DramBase, KernelConstants.UserSlabHeapSize);
+            CommitMemory(KernelConstants.UserSlabHeapBase - DramMemoryMap.DramBase, KernelConstants.UserSlabHeapSize);
 
             CriticalSection = new KCriticalSection(this);
             Schedulers = new KScheduler[KScheduler.CpuCoresCount];
@@ -119,6 +119,17 @@ namespace Ryujinx.HLE.HOS.Kernel
             new Thread(PreemptionThreadStart) { Name = "HLE.PreemptionThread" }.Start();
         }
 
+        public void CommitMemory(ulong address, ulong size)
+        {
+            ulong alignment = MemoryBlock.GetPageSize();
+            ulong endAddress = address + size;
+
+            address &= ~(alignment - 1);
+            endAddress = (endAddress + (alignment - 1)) & ~(alignment - 1);
+
+            Memory.Commit(address, endAddress - address);
+        }
+
         public ulong NewThreadUid()
         {
             return Interlocked.Increment(ref _threadUid) - 1;

Ryujinx.HLE/HOS/Kernel/KernelStatic.cs

@@ -1,5 +1,4 @@
-using Ryujinx.HLE.HOS.Kernel.Common;
+using Ryujinx.HLE.HOS.Kernel.Memory;
-using Ryujinx.HLE.HOS.Kernel.Memory;
 using Ryujinx.HLE.HOS.Kernel.Process;
 using Ryujinx.HLE.HOS.Kernel.Threading;
 using Ryujinx.Horizon.Common;
@@ -71,4 +70,4 @@ namespace Ryujinx.HLE.HOS.Kernel
             return null;
         }
     }
-}
+}

Ryujinx.HLE/HOS/Kernel/Memory/KMemoryRegionManager.cs

@@ -64,7 +64,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
                 if (address != 0)
                 {
                     IncrementPagesReferenceCount(address, pagesCount);
-                    context.Memory.Commit(address - DramMemoryMap.DramBase, pagesCount * KPageTableBase.PageSize);
+                    context.CommitMemory(address - DramMemoryMap.DramBase, pagesCount * KPageTableBase.PageSize);
                 }
 
                 return address;

Ryujinx.HLE/HOS/Kernel/Memory/KPageTable.cs

@@ -1,6 +1,8 @@
 using Ryujinx.Horizon.Common;
 using Ryujinx.Memory;
+using Ryujinx.Memory.Range;
 using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 
 namespace Ryujinx.HLE.HOS.Kernel.Memory
@@ -9,11 +11,19 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
     {
         private readonly IVirtualMemoryManager _cpuMemory;
 
+        protected override bool Supports4KBPages => _cpuMemory.Supports4KBPages;
+
         public KPageTable(KernelContext context, IVirtualMemoryManager cpuMemory) : base(context)
         {
             _cpuMemory = cpuMemory;
         }
 
+        /// <inheritdoc/>
+        protected override IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size)
+        {
+            return _cpuMemory.GetHostRegions(va, size);
+        }
+
         /// <inheritdoc/>
         protected override void GetPhysicalRegions(ulong va, ulong size, KPageList pageList)
         {
@@ -43,7 +53,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
                 return result;
             }
 
-            result = MapPages(dst, pageList, newDstPermission, false, 0);
+            result = MapPages(dst, pageList, newDstPermission, MemoryMapFlags.Private, false, 0);
 
             if (result != Result.Success)
             {
@@ -81,7 +91,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
 
             if (result != Result.Success)
             {
-                Result mapResult = MapPages(dst, dstPageList, oldDstPermission, false, 0);
+                Result mapResult = MapPages(dst, dstPageList, oldDstPermission, MemoryMapFlags.Private, false, 0);
                 Debug.Assert(mapResult == Result.Success);
             }
 
@@ -89,13 +99,20 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
         }
 
         /// <inheritdoc/>
-        protected override Result MapPages(ulong dstVa, ulong pagesCount, ulong srcPa, KMemoryPermission permission, bool shouldFillPages, byte fillValue)
+        protected override Result MapPages(
+            ulong dstVa,
+            ulong pagesCount,
+            ulong srcPa,
+            KMemoryPermission permission,
+            MemoryMapFlags flags,
+            bool shouldFillPages,
+            byte fillValue)
         {
             ulong size = pagesCount * PageSize;
 
-            Context.Memory.Commit(srcPa - DramMemoryMap.DramBase, size);
+            Context.CommitMemory(srcPa - DramMemoryMap.DramBase, size);
 
-            _cpuMemory.Map(dstVa, srcPa - DramMemoryMap.DramBase, size);
+            _cpuMemory.Map(dstVa, srcPa - DramMemoryMap.DramBase, size, flags);
 
             if (DramMemoryMap.IsHeapPhysicalAddress(srcPa))
             {
@@ -111,7 +128,13 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
         }
 
         /// <inheritdoc/>
-        protected override Result MapPages(ulong address, KPageList pageList, KMemoryPermission permission, bool shouldFillPages, byte fillValue)
+        protected override Result MapPages(
+            ulong address,
+            KPageList pageList,
+            KMemoryPermission permission,
+            MemoryMapFlags flags,
+            bool shouldFillPages,
+            byte fillValue)
         {
             using var scopedPageList = new KScopedPageList(Context.MemoryManager, pageList);
 
@@ -122,9 +145,9 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
                 ulong addr = pageNode.Address - DramMemoryMap.DramBase;
                 ulong size = pageNode.PagesCount * PageSize;
 
-                Context.Memory.Commit(addr, size);
+                Context.CommitMemory(addr, size);
 
-                _cpuMemory.Map(currentVa, addr, size);
+                _cpuMemory.Map(currentVa, addr, size, flags);
 
                 if (shouldFillPages)
                 {
@@ -139,6 +162,21 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
             return Result.Success;
         }
 
+        /// <inheritdoc/>
+        protected override Result MapForeign(IEnumerable<HostMemoryRange> regions, ulong va, ulong size)
+        {
+            ulong offset = 0;
+
+            foreach (var region in regions)
+            {
+                _cpuMemory.MapForeign(va + offset, region.Address, region.Size);
+
+                offset += region.Size;
+            }
+
+            return Result.Success;
+        }
+
         /// <inheritdoc/>
         protected override Result Unmap(ulong address, ulong pagesCount)
         {
@@ -188,4 +226,4 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
             _cpuMemory.Write(va, data);
         }
     }
-}
+}

Ryujinx.HLE/HOS/Kernel/Memory/KPageTableBase.cs

@@ -1,6 +1,8 @@
 using Ryujinx.Common;
 using Ryujinx.HLE.HOS.Kernel.Common;
 using Ryujinx.HLE.HOS.Kernel.Process;
+using Ryujinx.Memory;
+using Ryujinx.Memory.Range;
 using Ryujinx.Horizon.Common;
 using System;
 using System.Collections.Generic;
@@ -29,6 +31,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
         private const int MaxBlocksNeededForInsertion = 2;
 
         protected readonly KernelContext Context;
+        protected virtual bool Supports4KBPages => true;
 
         public ulong AddrSpaceStart { get; private set; }
         public ulong AddrSpaceEnd { get; private set; }
@@ -366,7 +369,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
                     return KernelResult.OutOfResource;
                 }
 
-                Result result = MapPages(address, pageList, permission);
+                Result result = MapPages(address, pageList, permission, MemoryMapFlags.None);
 
                 if (result == Result.Success)
                 {
@@ -502,7 +505,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
 
                 if (paIsValid)
                 {
-                    result = MapPages(address, pagesCount, srcPa, permission);
+                    result = MapPages(address, pagesCount, srcPa, permission, MemoryMapFlags.Private);
                 }
                 else
                 {
@@ -565,7 +568,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
 
             using var _ = new OnScopeExit(() => pageList.DecrementPagesReferenceCount(Context.MemoryManager));
 
-            return MapPages(address, pageList, permission);
+            return MapPages(address, pageList, permission, MemoryMapFlags.Private);
         }
 
         public Result MapProcessCodeMemory(ulong dst, ulong src, ulong size)
@@ -746,7 +749,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
                         return KernelResult.InvalidMemState;
                     }
 
-                    result = MapPages(_currentHeapAddr, pageList, KMemoryPermission.ReadAndWrite, true, (byte)_heapFillValue);
+                    result = MapPages(_currentHeapAddr, pageList, KMemoryPermission.ReadAndWrite, MemoryMapFlags.Private, true, (byte)_heapFillValue);
 
                     if (result != Result.Success)
                     {
@@ -1334,7 +1337,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
 
                         ulong currentPagesCount = Math.Min(srcPaPages, dstVaPages);
 
-                        MapPages(dstVa, currentPagesCount, srcPa, KMemoryPermission.ReadAndWrite);
+                        MapPages(dstVa, currentPagesCount, srcPa, KMemoryPermission.ReadAndWrite, MemoryMapFlags.Private);
 
                         dstVa += currentPagesCount * PageSize;
                         srcPa += currentPagesCount * PageSize;
@@ -1878,7 +1881,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
                     Context.Memory.Fill(GetDramAddressFromPa(firstPageFillAddress), unusedSizeAfter, (byte)_ipcFillValue);
                 }
 
-                Result result = MapPages(currentVa, 1, dstFirstPagePa, permission);
+                Result result = MapPages(currentVa, 1, dstFirstPagePa, permission, MemoryMapFlags.Private);
 
                 if (result != Result.Success)
                 {
@@ -1894,10 +1897,19 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
             {
                 ulong alignedSize = endAddrTruncated - addressRounded;
 
-                KPageList pageList = new KPageList();
+                Result result;
-                srcPageTable.GetPhysicalRegions(addressRounded, alignedSize, pageList);
 
-                Result result = MapPages(currentVa, pageList, permission);
+                if (srcPageTable.Supports4KBPages)
+                {
+                    KPageList pageList = new KPageList();
+                    srcPageTable.GetPhysicalRegions(addressRounded, alignedSize, pageList);
+
+                    result = MapPages(currentVa, pageList, permission, MemoryMapFlags.None);
+                }
+                else
+                {
+                    result = MapForeign(srcPageTable.GetHostRegions(addressRounded, alignedSize), currentVa, alignedSize);
+                }
 
                 if (result != Result.Success)
                 {
@@ -1932,7 +1944,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
 
                 Context.Memory.Fill(GetDramAddressFromPa(lastPageFillAddr), unusedSizeAfter, (byte)_ipcFillValue);
 
-                Result result = MapPages(currentVa, 1, dstLastPagePa, permission);
+                Result result = MapPages(currentVa, 1, dstLastPagePa, permission, MemoryMapFlags.Private);
 
                 if (result != Result.Success)
                 {
@@ -2884,6 +2896,16 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
             return StackRegionStart > address || address + size - 1 > StackRegionEnd - 1;
         }
 
+        /// <summary>
+        /// Gets the host regions that make up the given virtual address region.
+        /// If any part of the virtual region is unmapped, null is returned.
+        /// </summary>
+        /// <param name="va">Virtual address of the range</param>
+        /// <param name="size">Size of the range</param>
+        /// <returns>The host regions</returns>
+        /// <exception cref="Ryujinx.Memory.InvalidMemoryRegionException">Throw for unhandled invalid or unmapped memory accesses</exception>
+        protected abstract IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size);
+
         /// <summary>
         /// Gets the physical regions that make up the given virtual address region.
         /// If any part of the virtual region is unmapped, null is returned.
@@ -2936,10 +2958,18 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
         /// <param name="pagesCount">Number of pages to map</param>
         /// <param name="srcPa">Physical address where the pages should be mapped. May be ignored if aliasing is not supported</param>
         /// <param name="permission">Permission of the region to be mapped</param>
+        /// <param name="flags">Flags controlling the memory map operation</param>
         /// <param name="shouldFillPages">Indicate if the pages should be filled with the <paramref name="fillValue"/> value</param>
         /// <param name="fillValue">The value used to fill pages when <paramref name="shouldFillPages"/> is set to true</param>
         /// <returns>Result of the mapping operation</returns>
-        protected abstract Result MapPages(ulong dstVa, ulong pagesCount, ulong srcPa, KMemoryPermission permission, bool shouldFillPages = false, byte fillValue = 0);
+        protected abstract Result MapPages(
+            ulong dstVa,
+            ulong pagesCount,
+            ulong srcPa,
+            KMemoryPermission permission,
+            MemoryMapFlags flags,
+            bool shouldFillPages = false,
+            byte fillValue = 0);
 
         /// <summary>
         /// Maps a region of memory into the specified physical memory region.
@@ -2947,10 +2977,26 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
         /// <param name="address">Destination virtual address that should be mapped</param>
         /// <param name="pageList">List of physical memory pages where the pages should be mapped. May be ignored if aliasing is not supported</param>
         /// <param name="permission">Permission of the region to be mapped</param>
+        /// <param name="flags">Flags controlling the memory map operation</param>
         /// <param name="shouldFillPages">Indicate if the pages should be filled with the <paramref name="fillValue"/> value</param>
         /// <param name="fillValue">The value used to fill pages when <paramref name="shouldFillPages"/> is set to true</param>
         /// <returns>Result of the mapping operation</returns>
-        protected abstract Result MapPages(ulong address, KPageList pageList, KMemoryPermission permission, bool shouldFillPages = false, byte fillValue = 0);
+        protected abstract Result MapPages(
+            ulong address,
+            KPageList pageList,
+            KMemoryPermission permission,
+            MemoryMapFlags flags,
+            bool shouldFillPages = false,
+            byte fillValue = 0);
+
+        /// <summary>
+        /// Maps pages into an arbitrary host memory location.
+        /// </summary>
+        /// <param name="regions">Host regions to be mapped into the specified virtual memory region</param>
+        /// <param name="va">Destination virtual address of the range on this page table</param>
+        /// <param name="size">Size of the range</param>
+        /// <returns>Result of the mapping operation</returns>
+        protected abstract Result MapForeign(IEnumerable<HostMemoryRange> regions, ulong va, ulong size);
 
         /// <summary>
         /// Unmaps a region of memory that was previously mapped with one of the page mapping methods.

Ryujinx.HLE/HOS/Kernel/Memory/KSharedMemory.cs

@@ -2,6 +2,7 @@ using Ryujinx.Common;
 using Ryujinx.HLE.HOS.Kernel.Common;
 using Ryujinx.HLE.HOS.Kernel.Process;
 using Ryujinx.Horizon.Common;
+using Ryujinx.Memory;
 
 namespace Ryujinx.HLE.HOS.Kernel.Memory
 {
@@ -48,7 +49,17 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
                 return KernelResult.InvalidPermission;
             }
 
-            return memoryManager.MapPages(address, _pageList, MemoryState.SharedMemory, permission);
+            // On platforms with page size > 4 KB, this can fail due to the address not being page aligned,
+            // we can return an error to force the application to retry with a different address.
+
+            try
+            {
+                return memoryManager.MapPages(address, _pageList, MemoryState.SharedMemory, permission);
+            }
+            catch (InvalidMemoryRegionException)
+            {
+                return KernelResult.InvalidMemState;
+            }
         }
 
         public Result UnmapFromProcess(KPageTableBase memoryManager, ulong address, ulong size, KProcess process)

Ryujinx.HLE/HOS/Kernel/Memory/SharedMemoryStorage.cs

@@ -18,7 +18,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
             {
                 ulong address = pageNode.Address - DramMemoryMap.DramBase;
                 ulong size = pageNode.PagesCount * KPageTableBase.PageSize;
-                context.Memory.Commit(address, size);
+                context.CommitMemory(address, size);
             }
         }
 

Ryujinx.HLE/HOS/ProgramLoader.cs

@@ -41,17 +41,19 @@ namespace Ryujinx.HLE.HOS
 
     struct ProgramLoadResult
     {
-        public static ProgramLoadResult Failed => new ProgramLoadResult(false, null, null);
+        public static ProgramLoadResult Failed => new ProgramLoadResult(false, null, null, 0);
 
         public readonly bool Success;
         public readonly ProcessTamperInfo TamperInfo;
         public readonly IDiskCacheLoadState DiskCacheLoadState;
+        public readonly ulong ProcessId;
 
-        public ProgramLoadResult(bool success, ProcessTamperInfo tamperInfo, IDiskCacheLoadState diskCacheLoadState)
+        public ProgramLoadResult(bool success, ProcessTamperInfo tamperInfo, IDiskCacheLoadState diskCacheLoadState, ulong pid)
         {
             Success = success;
             TamperInfo = tamperInfo;
             DiskCacheLoadState = diskCacheLoadState;
+            ProcessId = pid;
         }
     }
 
@@ -366,7 +368,7 @@ namespace Ryujinx.HLE.HOS
                 process.MemoryManager.AliasRegionStart,
                 process.MemoryManager.CodeRegionStart);
 
-            return new ProgramLoadResult(true, tamperInfo, processContextFactory.DiskCacheLoadState);
+            return new ProgramLoadResult(true, tamperInfo, processContextFactory.DiskCacheLoadState, process.Pid);
         }
 
         private static Result LoadIntoMemory(KProcess process, IExecutable image, ulong baseAddress)

Ryujinx.HLE/HOS/Services/Fs/IFileSystemProxy.cs

@@ -27,6 +27,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
     class IFileSystemProxy : DisposableIpcService
     {
         private SharedRef<LibHac.FsSrv.Sf.IFileSystemProxy> _baseFileSystemProxy;
+        private ulong _pid;
 
         public IFileSystemProxy(ServiceCtx context) : base(context.Device.System.FsServer)
         {
@@ -38,6 +39,8 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         // SetCurrentProcess(u64, pid)
         public ResultCode SetCurrentProcess(ServiceCtx context)
         {
+            _pid = context.Request.HandleDesc.PId;
+
             return ResultCode.Success;
         }
 
@@ -702,7 +705,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         // OpenDataStorageByCurrentProcess() -> object<nn::fssrv::sf::IStorage> dataStorage
         public ResultCode OpenDataStorageByCurrentProcess(ServiceCtx context)
         {
-            var storage = context.Device.FileSystem.RomFs.AsStorage(true);
+            var storage = context.Device.FileSystem.GetRomFs(_pid).AsStorage(true);
             using var sharedStorage = new SharedRef<LibHac.Fs.IStorage>(storage);
             using var sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref()));
 
@@ -791,7 +794,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         // OpenPatchDataStorageByCurrentProcess() -> object<nn::fssrv::sf::IStorage>
         public ResultCode OpenPatchDataStorageByCurrentProcess(ServiceCtx context)
         {
-            var storage = context.Device.FileSystem.RomFs.AsStorage(true);
+            var storage = context.Device.FileSystem.GetRomFs(_pid).AsStorage(true);
             using var sharedStorage = new SharedRef<LibHac.Fs.IStorage>(storage);
             using var sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref()));
 
@@ -811,7 +814,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
                 throw new NotImplementedException($"Accessing storage from other programs is not supported (program index = {programIndex}).");
             }
 
-            var storage = context.Device.FileSystem.RomFs.AsStorage(true);
+            var storage = context.Device.FileSystem.GetRomFs(_pid).AsStorage(true);
             using var sharedStorage = new SharedRef<LibHac.Fs.IStorage>(storage);
             using var sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref()));
 

Ryujinx.HLE/HOS/Services/Pm/IDebugMonitorInterface.cs

@@ -10,6 +10,24 @@ namespace Ryujinx.HLE.HOS.Services.Pm
     {
         public IDebugMonitorInterface(ServiceCtx context) { }
 
+        [CommandHipc(4)]
+        // GetProgramId() -> sf::Out<ncm::ProgramId> out_process_id
+        public ResultCode GetApplicationProcessId(ServiceCtx context)
+        {
+            // TODO: Not correct as it shouldn't be directly using kernel objects here
+            foreach (KProcess process in context.Device.System.KernelContext.Processes.Values)
+            {
+                if (process.IsApplication)
+                {
+                    context.ResponseData.Write(process.Pid);
+
+                    return ResultCode.Success;
+                }
+            }
+
+            return ResultCode.ProcessNotFound;
+        }
+
         [CommandHipc(65000)]
         // AtmosphereGetProcessInfo(os::ProcessId process_id) -> sf::OutCopyHandle out_process_handle, sf::Out<ncm::ProgramLocation> out_loc, sf::Out<cfg::OverrideStatus> out_status
         public ResultCode GetProcessInfo(ServiceCtx context)

Ryujinx.HLE/HOS/Services/Pm/IInformationInterface.cs

@@ -1,8 +1,28 @@
-namespace Ryujinx.HLE.HOS.Services.Pm
+using Ryujinx.HLE.HOS.Kernel;
+using Ryujinx.HLE.HOS.Kernel.Process;
+
+namespace Ryujinx.HLE.HOS.Services.Pm
 {
     [Service("pm:info")]
     class IInformationInterface : IpcService
     {
         public IInformationInterface(ServiceCtx context) { }
+
+        [CommandHipc(0)]
+        // GetProgramId(os::ProcessId process_id) -> sf::Out<ncm::ProgramId> out
+        public ResultCode GetProgramId(ServiceCtx context)
+        {
+            ulong pid = context.RequestData.ReadUInt64();
+
+            // TODO: Not correct as it shouldn't be directly using kernel objects here
+            if (context.Device.System.KernelContext.Processes.TryGetValue(pid, out KProcess process))
+            {
+                context.ResponseData.Write(process.TitleId);
+
+                return ResultCode.Success;
+            }
+
+            return ResultCode.ProcessNotFound;
+        }
     }
 }

Ryujinx.HLE/HOS/Services/Pm/ResultCode.cs

@@ -0,0 +1,17 @@
+namespace Ryujinx.HLE.HOS.Services.Pm
+{
+    enum ResultCode
+    {
+        ModuleId       = 15,
+        ErrorCodeShift = 9,
+
+        Success = 0,
+
+        ProcessNotFound    = (1 << ErrorCodeShift) | ModuleId,
+        AlreadyStarted     = (2 << ErrorCodeShift) | ModuleId,
+        NotTerminated      = (3 << ErrorCodeShift) | ModuleId,
+        DebugHookInUse     = (4 << ErrorCodeShift) | ModuleId,
+        ApplicationRunning = (5 << ErrorCodeShift) | ModuleId,
+        InvalidSize        = (6 << ErrorCodeShift) | ModuleId,
+    }
+}

Ryujinx.Memory.Tests/MockVirtualMemoryManager.cs

@@ -6,6 +6,8 @@ namespace Ryujinx.Memory.Tests
 {
     public class MockVirtualMemoryManager : IVirtualMemoryManager
     {
+        public bool Supports4KBPages => true;
+
         public bool NoMappings = false;
 
         public event Action<ulong, ulong, MemoryPermission> OnProtect;
@@ -14,7 +16,12 @@ namespace Ryujinx.Memory.Tests
         {
         }
 
-        public void Map(ulong va, ulong pa, ulong size)
+        public void Map(ulong va, ulong pa, ulong size, MemoryMapFlags flags)
+        {
+            throw new NotImplementedException();
+        }
+
+        public void MapForeign(ulong va, nuint hostAddress, ulong size)
         {
             throw new NotImplementedException();
         }
@@ -64,6 +71,11 @@ namespace Ryujinx.Memory.Tests
             throw new NotImplementedException();
         }
 
+        IEnumerable<HostMemoryRange> IVirtualMemoryManager.GetHostRegions(ulong va, ulong size)
+        {
+            throw new NotImplementedException();
+        }
+
         IEnumerable<MemoryRange> IVirtualMemoryManager.GetPhysicalRegions(ulong va, ulong size)
         {
             return NoMappings ? new MemoryRange[0] : new MemoryRange[] { new MemoryRange(va, size) };

Ryujinx.Memory/AddressSpaceManager.cs

@@ -13,9 +13,12 @@ namespace Ryujinx.Memory
     /// </summary>
     public sealed class AddressSpaceManager : IVirtualMemoryManager, IWritableBlock
     {
-        public const int PageBits = PageTable<ulong>.PageBits;
+        public const int PageBits = PageTable<nuint>.PageBits;
-        public const int PageSize = PageTable<ulong>.PageSize;
+        public const int PageSize = PageTable<nuint>.PageSize;
-        public const int PageMask = PageTable<ulong>.PageMask;
+        public const int PageMask = PageTable<nuint>.PageMask;
+
+        /// <inheritdoc/>
+        public bool Supports4KBPages => true;
 
         /// <summary>
         /// Address space width in bits.
@@ -25,7 +28,7 @@ namespace Ryujinx.Memory
         private readonly ulong _addressSpaceSize;
 
         private readonly MemoryBlock _backingMemory;
-        private readonly PageTable<ulong> _pageTable;
+        private readonly PageTable<nuint> _pageTable;
 
         /// <summary>
         /// Creates a new instance of the memory manager.
@@ -46,17 +49,17 @@ namespace Ryujinx.Memory
             AddressSpaceBits = asBits;
             _addressSpaceSize = asSize;
             _backingMemory = backingMemory;
-            _pageTable = new PageTable<ulong>();
+            _pageTable = new PageTable<nuint>();
         }
 
         /// <inheritdoc/>
-        public void Map(ulong va, ulong pa, ulong size)
+        public void Map(ulong va, ulong pa, ulong size, MemoryMapFlags flags)
         {
             AssertValidAddressAndSize(va, size);
 
             while (size != 0)
             {
-                _pageTable.Map(va, pa);
+                _pageTable.Map(va, (nuint)(ulong)_backingMemory.GetPointer(pa, PageSize));
 
                 va += PageSize;
                 pa += PageSize;
@@ -64,6 +67,21 @@ namespace Ryujinx.Memory
             }
         }
 
+        /// <inheritdoc/>
+        public void MapForeign(ulong va, nuint hostPointer, ulong size)
+        {
+            AssertValidAddressAndSize(va, size);
+
+            while (size != 0)
+            {
+                _pageTable.Map(va, hostPointer);
+
+                va += PageSize;
+                hostPointer += PageSize;
+                size -= PageSize;
+            }
+        }
+
         /// <inheritdoc/>
         public void Unmap(ulong va, ulong size)
         {
@@ -108,7 +126,7 @@ namespace Ryujinx.Memory
 
             if (IsContiguousAndMapped(va, data.Length))
             {
-                data.CopyTo(_backingMemory.GetSpan(GetPhysicalAddressInternal(va), data.Length));
+                data.CopyTo(GetHostSpanContiguous(va, data.Length));
             }
             else
             {
@@ -116,22 +134,18 @@ namespace Ryujinx.Memory
 
                 if ((va & PageMask) != 0)
                 {
-                    ulong pa = GetPhysicalAddressInternal(va);
-
                     size = Math.Min(data.Length, PageSize - (int)(va & PageMask));
 
-                    data.Slice(0, size).CopyTo(_backingMemory.GetSpan(pa, size));
+                    data.Slice(0, size).CopyTo(GetHostSpanContiguous(va, size));
 
                     offset += size;
                 }
 
                 for (; offset < data.Length; offset += size)
                 {
-                    ulong pa = GetPhysicalAddressInternal(va + (ulong)offset);
-
                     size = Math.Min(data.Length - offset, PageSize);
 
-                    data.Slice(offset, size).CopyTo(_backingMemory.GetSpan(pa, size));
+                    data.Slice(offset, size).CopyTo(GetHostSpanContiguous(va + (ulong)offset, size));
                 }
             }
         }
@@ -154,7 +168,7 @@ namespace Ryujinx.Memory
 
             if (IsContiguousAndMapped(va, size))
             {
-                return _backingMemory.GetSpan(GetPhysicalAddressInternal(va), size);
+                return GetHostSpanContiguous(va, size);
             }
             else
             {
@@ -176,7 +190,7 @@ namespace Ryujinx.Memory
 
             if (IsContiguousAndMapped(va, size))
             {
-                return new WritableRegion(null, va, _backingMemory.GetMemory(GetPhysicalAddressInternal(va), size));
+                return new WritableRegion(null, va, new NativeMemoryManager<byte>((byte*)GetHostAddress(va), size).Memory);
             }
             else
             {
@@ -189,14 +203,14 @@ namespace Ryujinx.Memory
         }
 
         /// <inheritdoc/>
-        public ref T GetRef<T>(ulong va) where T : unmanaged
+        public unsafe ref T GetRef<T>(ulong va) where T : unmanaged
         {
             if (!IsContiguous(va, Unsafe.SizeOf<T>()))
             {
                 ThrowMemoryNotContiguous();
             }
 
-            return ref _backingMemory.GetRef<T>(GetPhysicalAddressInternal(va));
+            return ref *(T*)GetHostAddress(va);
         }
 
         /// <inheritdoc/>
@@ -210,7 +224,7 @@ namespace Ryujinx.Memory
             return (int)(vaSpan / PageSize);
         }
 
-        private static void ThrowMemoryNotContiguous() => throw new MemoryNotContiguousException();
+        private void ThrowMemoryNotContiguous() => throw new MemoryNotContiguousException();
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         private bool IsContiguousAndMapped(ulong va, int size) => IsContiguous(va, size) && IsMapped(va);
@@ -232,7 +246,7 @@ namespace Ryujinx.Memory
                     return false;
                 }
 
-                if (GetPhysicalAddressInternal(va) + PageSize != GetPhysicalAddressInternal(va + PageSize))
+                if (GetHostAddress(va) + PageSize != GetHostAddress(va + PageSize))
                 {
                     return false;
                 }
@@ -243,6 +257,17 @@ namespace Ryujinx.Memory
             return true;
         }
 
+        /// <inheritdoc/>
+        public IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size)
+        {
+            if (size == 0)
+            {
+                return Enumerable.Empty<HostMemoryRange>();
+            }
+
+            return GetHostRegionsImpl(va, size);
+        }
+
         /// <inheritdoc/>
         public IEnumerable<MemoryRange> GetPhysicalRegions(ulong va, ulong size)
         {
@@ -251,6 +276,39 @@ namespace Ryujinx.Memory
                 return Enumerable.Empty<MemoryRange>();
             }
 
+            var hostRegions = GetHostRegionsImpl(va, size);
+            if (hostRegions == null)
+            {
+                return null;
+            }
+
+            var regions = new MemoryRange[hostRegions.Count];
+
+            ulong backingStart = (ulong)_backingMemory.Pointer;
+            ulong backingEnd = backingStart + _backingMemory.Size;
+
+            int count = 0;
+
+            for (int i = 0; i < regions.Length; i++)
+            {
+                var hostRegion = hostRegions[i];
+
+                if ((ulong)hostRegion.Address >= backingStart && (ulong)hostRegion.Address < backingEnd)
+                {
+                    regions[count++] = new MemoryRange((ulong)hostRegion.Address - backingStart, hostRegion.Size);
+                }
+            }
+
+            if (count != regions.Length)
+            {
+                return new ArraySegment<MemoryRange>(regions, 0, count);
+            }
+
+            return regions;
+        }
+
+        private List<HostMemoryRange> GetHostRegionsImpl(ulong va, ulong size)
+        {
             if (!ValidateAddress(va) || !ValidateAddressAndSize(va, size))
             {
                 return null;
@@ -258,9 +316,9 @@ namespace Ryujinx.Memory
 
             int pages = GetPagesCount(va, (uint)size, out va);
 
-            var regions = new List<MemoryRange>();
+            var regions = new List<HostMemoryRange>();
 
-            ulong regionStart = GetPhysicalAddressInternal(va);
+            nuint regionStart = GetHostAddress(va);
             ulong regionSize = PageSize;
 
             for (int page = 0; page < pages - 1; page++)
@@ -270,12 +328,12 @@ namespace Ryujinx.Memory
                     return null;
                 }
 
-                ulong newPa = GetPhysicalAddressInternal(va + PageSize);
+                nuint newHostAddress = GetHostAddress(va + PageSize);
 
-                if (GetPhysicalAddressInternal(va) + PageSize != newPa)
+                if (GetHostAddress(va) + PageSize != newHostAddress)
                 {
-                    regions.Add(new MemoryRange(regionStart, regionSize));
+                    regions.Add(new HostMemoryRange(regionStart, regionSize));
-                    regionStart = newPa;
+                    regionStart = newHostAddress;
                     regionSize = 0;
                 }
 
@@ -283,7 +341,7 @@ namespace Ryujinx.Memory
                 regionSize += PageSize;
             }
 
-            regions.Add(new MemoryRange(regionStart, regionSize));
+            regions.Add(new HostMemoryRange(regionStart, regionSize));
 
             return regions;
         }
@@ -301,22 +359,18 @@ namespace Ryujinx.Memory
 
             if ((va & PageMask) != 0)
             {
-                ulong pa = GetPhysicalAddressInternal(va);
-
                 size = Math.Min(data.Length, PageSize - (int)(va & PageMask));
 
-                _backingMemory.GetSpan(pa, size).CopyTo(data.Slice(0, size));
+                GetHostSpanContiguous(va, size).CopyTo(data.Slice(0, size));
 
                 offset += size;
             }
 
             for (; offset < data.Length; offset += size)
             {
-                ulong pa = GetPhysicalAddressInternal(va + (ulong)offset);
-
                 size = Math.Min(data.Length - offset, PageSize);
 
-                _backingMemory.GetSpan(pa, size).CopyTo(data.Slice(offset, size));
+                GetHostSpanContiguous(va + (ulong)offset, size).CopyTo(data.Slice(offset, size));
             }
         }
 
@@ -391,22 +445,23 @@ namespace Ryujinx.Memory
             }
         }
 
-        private ulong GetPhysicalAddressInternal(ulong va)
+        private unsafe Span<byte> GetHostSpanContiguous(ulong va, int size)
         {
-            return _pageTable.Read(va) + (va & PageMask);
+            return new Span<byte>((void*)GetHostAddress(va), size);
         }
 
-        /// <summary>
+        private nuint GetHostAddress(ulong va)
-        /// Reprotect a region of virtual memory for tracking. Sets software protection bits.
+        {
-        /// </summary>
+            return _pageTable.Read(va) + (nuint)(va & PageMask);
-        /// <param name="va">Virtual address base</param>
+        }
-        /// <param name="size">Size of the region to protect</param>
+
-        /// <param name="protection">Memory protection to set</param>
+        /// <inheritdoc/>
         public void TrackingReprotect(ulong va, ulong size, MemoryPermission protection)
         {
             throw new NotImplementedException();
         }
 
+        /// <inheritdoc/>
         public void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false)
         {
             // Only the ARM Memory Manager has tracking for now.

Ryujinx.Memory/IVirtualMemoryManager.cs

@@ -6,6 +6,12 @@ namespace Ryujinx.Memory
 {
     public interface IVirtualMemoryManager
     {
+        /// <summary>
+        /// Indicates whenever the memory manager supports aliasing pages at 4KB granularity.
+        /// </summary>
+        /// <returns>True if 4KB pages are supported by the memory manager, false otherwise</returns>
+        bool Supports4KBPages { get; }
+
         /// <summary>
         /// Maps a virtual memory range into a physical memory range.
         /// </summary>
@@ -15,7 +21,20 @@ namespace Ryujinx.Memory
         /// <param name="va">Virtual memory address</param>
         /// <param name="pa">Physical memory address where the region should be mapped to</param>
         /// <param name="size">Size to be mapped</param>
-        void Map(ulong va, ulong pa, ulong size);
+        /// <param name="flags">Flags controlling memory mapping</param>
+        void Map(ulong va, ulong pa, ulong size, MemoryMapFlags flags);
+
+        /// <summary>
+        /// Maps a virtual memory range into an arbitrary host memory range.
+        /// </summary>
+        /// <remarks>
+        /// Addresses and size must be page aligned.
+        /// Not all memory managers supports this feature.
+        /// </remarks>
+        /// <param name="va">Virtual memory address</param>
+        /// <param name="hostPointer">Host pointer where the virtual region should be mapped</param>
+        /// <param name="size">Size to be mapped</param>
+        void MapForeign(ulong va, nuint hostPointer, ulong size);
 
         /// <summary>
         /// Unmaps a previously mapped range of virtual memory.
@@ -115,6 +134,15 @@ namespace Ryujinx.Memory
         /// <exception cref="MemoryNotContiguousException">Throw if the specified memory region is not contiguous in physical memory</exception>
         ref T GetRef<T>(ulong va) where T : unmanaged;
 
+        /// <summary>
+        /// Gets the host regions that make up the given virtual address region.
+        /// If any part of the virtual region is unmapped, null is returned.
+        /// </summary>
+        /// <param name="va">Virtual address of the range</param>
+        /// <param name="size">Size of the range</param>
+        /// <returns>Array of host regions</returns>
+        IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size);
+
         /// <summary>
         /// Gets the physical regions that make up the given virtual address region.
         /// If any part of the virtual region is unmapped, null is returned.

Ryujinx.Memory/MemoryBlock.cs

@@ -440,4 +440,4 @@ namespace Ryujinx.Memory
 
         private static void ThrowInvalidMemoryRegionException() => throw new InvalidMemoryRegionException();
     }
-}
+}

Ryujinx.Memory/MemoryMapFlags.cs

@@ -0,0 +1,23 @@
+using System;
+
+namespace Ryujinx.Memory
+{
+    /// <summary>
+    /// Flags that indicate how the host memory should be mapped.
+    /// </summary>
+    [Flags]
+    public enum MemoryMapFlags
+    {
+        /// <summary>
+        /// No mapping flags.
+        /// </summary>
+        None = 0,
+
+        /// <summary>
+        /// Indicates that the implementation is free to ignore the specified backing memory offset
+        /// and allocate its own private storage for the mapping.
+        /// This allows some mappings that would otherwise fail due to host platform restrictions to succeed.
+        /// </summary>
+        Private = 1 << 0
+    }
+}

Ryujinx.Memory/Range/HostMemoryRange.cs

@@ -0,0 +1,71 @@
+using System;
+
+namespace Ryujinx.Memory.Range
+{
+    /// <summary>
+    /// Range of memory composed of an address and size.
+    /// </summary>
+    public struct HostMemoryRange : IEquatable<HostMemoryRange>
+    {
+        /// <summary>
+        /// An empty memory range, with a null address and zero size.
+        /// </summary>
+        public static HostMemoryRange Empty => new HostMemoryRange(0, 0);
+
+        /// <summary>
+        /// Start address of the range.
+        /// </summary>
+        public nuint Address { get; }
+
+        /// <summary>
+        /// Size of the range in bytes.
+        /// </summary>
+        public ulong Size { get; }
+
+        /// <summary>
+        /// Address where the range ends (exclusive).
+        /// </summary>
+        public nuint EndAddress => Address + (nuint)Size;
+
+        /// <summary>
+        /// Creates a new memory range with the specified address and size.
+        /// </summary>
+        /// <param name="address">Start address</param>
+        /// <param name="size">Size in bytes</param>
+        public HostMemoryRange(nuint address, ulong size)
+        {
+            Address = address;
+            Size = size;
+        }
+
+        /// <summary>
+        /// Checks if the range overlaps with another.
+        /// </summary>
+        /// <param name="other">The other range to check for overlap</param>
+        /// <returns>True if the ranges overlap, false otherwise</returns>
+        public bool OverlapsWith(HostMemoryRange other)
+        {
+            nuint thisAddress = Address;
+            nuint thisEndAddress = EndAddress;
+            nuint otherAddress = other.Address;
+            nuint otherEndAddress = other.EndAddress;
+
+            return thisAddress < otherEndAddress && otherAddress < thisEndAddress;
+        }
+
+        public override bool Equals(object obj)
+        {
+            return obj is HostMemoryRange other && Equals(other);
+        }
+
+        public bool Equals(HostMemoryRange other)
+        {
+            return Address == other.Address && Size == other.Size;
+        }
+
+        public override int GetHashCode()
+        {
+            return HashCode.Combine(Address, Size);
+        }
+    }
+}

Ryujinx.Memory/Tracking/MemoryTracking.cs

@@ -139,8 +139,6 @@ namespace Ryujinx.Memory.Tracking
         /// <returns>The memory tracking handle</returns>
         public MultiRegionHandle BeginGranularTracking(ulong address, ulong size, IEnumerable<IRegionHandle> handles, ulong granularity)
         {
-            (address, size) = PageAlign(address, size);
-
             return new MultiRegionHandle(this, address, size, handles, granularity);
         }
 
@@ -166,11 +164,11 @@ namespace Ryujinx.Memory.Tracking
         /// <returns>The memory tracking handle</returns>
         public RegionHandle BeginTracking(ulong address, ulong size)
         {
-            (address, size) = PageAlign(address, size);
+            var (paAddress, paSize) = PageAlign(address, size);
 
             lock (TrackingLock)
             {
-                RegionHandle handle = new RegionHandle(this, address, size, _memoryManager.IsRangeMapped(address, size));
+                RegionHandle handle = new RegionHandle(this, paAddress, paSize, address, size, _memoryManager.IsRangeMapped(address, size));
 
                 return handle;
             }
@@ -186,11 +184,11 @@ namespace Ryujinx.Memory.Tracking
         /// <returns>The memory tracking handle</returns>
         internal RegionHandle BeginTrackingBitmap(ulong address, ulong size, ConcurrentBitmap bitmap, int bit)
         {
-            (address, size) = PageAlign(address, size);
+            var (paAddress, paSize) = PageAlign(address, size);
 
             lock (TrackingLock)
             {
-                RegionHandle handle = new RegionHandle(this, address, size, bitmap, bit, _memoryManager.IsRangeMapped(address, size));
+                RegionHandle handle = new RegionHandle(this, paAddress, paSize, address, size, bitmap, bit, _memoryManager.IsRangeMapped(address, size));
 
                 return handle;
             }

Ryujinx.Memory/Tracking/MultiRegionHandle.cs

@@ -32,7 +32,7 @@ namespace Ryujinx.Memory.Tracking
 
         internal MultiRegionHandle(MemoryTracking tracking, ulong address, ulong size, IEnumerable<IRegionHandle> handles, ulong granularity)
         {
-            _handles = new RegionHandle[size / granularity];
+            _handles = new RegionHandle[(size + granularity - 1) / granularity];
             Granularity = granularity;
 
             _dirtyBitmap = new ConcurrentBitmap(_handles.Length, true);
@@ -50,7 +50,7 @@ namespace Ryujinx.Memory.Tracking
 
                 foreach (RegionHandle handle in handles)
                 {
-                    int startIndex = (int)((handle.Address - address) / granularity);
+                    int startIndex = (int)((handle.RealAddress - address) / granularity);
 
                     // Fill any gap left before this handle.
                     while (i < startIndex)
@@ -72,7 +72,7 @@ namespace Ryujinx.Memory.Tracking
                         }
                         else
                         {
-                            int endIndex = (int)((handle.EndAddress - address) / granularity);
+                            int endIndex = (int)((handle.RealEndAddress - address) / granularity);
 
                             while (i < endIndex)
                             {
@@ -171,12 +171,13 @@ namespace Ryujinx.Memory.Tracking
                         modifiedAction(rgStart, rgSize);
                         rgSize = 0;
                     }
-                    rgStart = handle.Address;
+
+                    rgStart = handle.RealAddress;
                 }
 
                 if (handle.Dirty)
                 {
-                    rgSize += handle.Size;
+                    rgSize += handle.RealSize;
                     handle.Reprotect();
                 }
 
@@ -191,7 +192,7 @@ namespace Ryujinx.Memory.Tracking
             int startHandle = (int)((address - Address) / Granularity);
             int lastHandle = (int)((address + (size - 1) - Address) / Granularity);
 
-            ulong rgStart = _handles[startHandle].Address;
+            ulong rgStart = Address + (ulong)startHandle * Granularity;
 
             if (startHandle == lastHandle)
             {
@@ -200,7 +201,7 @@ namespace Ryujinx.Memory.Tracking
                 if (handle.Dirty)
                 {
                     handle.Reprotect();
-                    modifiedAction(rgStart, handle.Size);
+                    modifiedAction(rgStart, handle.RealSize);
                 }
 
                 return;
@@ -273,10 +274,10 @@ namespace Ryujinx.Memory.Tracking
                         modifiedAction(rgStart, rgSize);
                         rgSize = 0;
                     }
-                    rgStart = handle.Address;
+                    rgStart = handle.RealAddress;
                 }
 
-                rgSize += handle.Size;
+                rgSize += handle.RealSize;
                 handle.Reprotect(false, (checkMasks[index] & bitValue) == 0);
 
                 checkMasks[index] &= ~bitValue;
@@ -320,7 +321,7 @@ namespace Ryujinx.Memory.Tracking
                     {
                         handle.Reprotect();
 
-                        modifiedAction(rgStart, handle.Size);
+                        modifiedAction(rgStart, handle.RealSize);
                     }
                 }
 

Ryujinx.Memory/Tracking/RegionHandle.cs

@@ -42,6 +42,10 @@ namespace Ryujinx.Memory.Tracking
         public ulong Size { get; }
         public ulong EndAddress { get; }
 
+        public ulong RealAddress { get; }
+        public ulong RealSize { get; }
+        public ulong RealEndAddress { get; }
+
         internal IMultiRegionHandle Parent { get; set; }
 
         private event Action _onDirty;
@@ -89,10 +93,12 @@ namespace Ryujinx.Memory.Tracking
         /// <param name="tracking">Tracking object for the target memory block</param>
         /// <param name="address">Virtual address of the region to track</param>
         /// <param name="size">Size of the region to track</param>
+        /// <param name="realAddress">The real, unaligned address of the handle</param>
+        /// <param name="realSize">The real, unaligned size of the handle</param>
         /// <param name="bitmap">The bitmap the dirty flag for this handle is stored in</param>
         /// <param name="bit">The bit index representing the dirty flag for this handle</param>
         /// <param name="mapped">True if the region handle starts mapped</param>
-        internal RegionHandle(MemoryTracking tracking, ulong address, ulong size, ConcurrentBitmap bitmap, int bit, bool mapped = true)
+        internal RegionHandle(MemoryTracking tracking, ulong address, ulong size, ulong realAddress, ulong realSize, ConcurrentBitmap bitmap, int bit, bool mapped = true)
         {
             Bitmap = bitmap;
             DirtyBit = bit;
@@ -104,6 +110,10 @@ namespace Ryujinx.Memory.Tracking
             Size = size;
             EndAddress = address + size;
 
+            RealAddress = realAddress;
+            RealSize = realSize;
+            RealEndAddress = realAddress + realSize;
+
             _tracking = tracking;
             _regions = tracking.GetVirtualRegionsForHandle(address, size);
             foreach (var region in _regions)
@@ -119,16 +129,23 @@ namespace Ryujinx.Memory.Tracking
         /// <param name="tracking">Tracking object for the target memory block</param>
         /// <param name="address">Virtual address of the region to track</param>
         /// <param name="size">Size of the region to track</param>
+        /// <param name="realAddress">The real, unaligned address of the handle</param>
+        /// <param name="realSize">The real, unaligned size of the handle</param>
         /// <param name="mapped">True if the region handle starts mapped</param>
-        internal RegionHandle(MemoryTracking tracking, ulong address, ulong size, bool mapped = true)
+        internal RegionHandle(MemoryTracking tracking, ulong address, ulong size, ulong realAddress, ulong realSize, bool mapped = true)
         {
             Bitmap = new ConcurrentBitmap(1, mapped);
 
             Unmapped = !mapped;
+
             Address = address;
             Size = size;
             EndAddress = address + size;
 
+            RealAddress = realAddress;
+            RealSize = realSize;
+            RealEndAddress = realAddress + realSize;
+
             _tracking = tracking;
             _regions = tracking.GetVirtualRegionsForHandle(address, size);
             foreach (var region in _regions)
@@ -199,6 +216,10 @@ namespace Ryujinx.Memory.Tracking
 
             if (_preAction != null)
             {
+                // Limit the range to within this handle.
+                ulong maxAddress = Math.Max(address, RealAddress);
+                ulong minEndAddress = Math.Min(address + size, RealAddress + RealSize);
+
                 // Copy the handles list in case it changes when we're out of the lock.
                 if (handleIterable is List<RegionHandle>)
                 {
@@ -212,7 +233,7 @@ namespace Ryujinx.Memory.Tracking
                 {
                     lock (_preActionLock)
                     {
-                        _preAction?.Invoke(address, size);
+                        _preAction?.Invoke(maxAddress, minEndAddress - maxAddress);
 
                         // The action is removed after it returns, to ensure that the null check above succeeds when
                         // it's still in progress rather than continuing and possibly missing a required data flush.

Ryujinx.Tests/Cpu/CpuTest.cs

@@ -53,7 +53,7 @@ namespace Ryujinx.Tests.Cpu
             _ram = new MemoryBlock(Size * 2);
             _memory = new MemoryManager(_ram, 1ul << 16);
             _memory.IncrementReferenceCount();
-            _memory.Map(CodeBaseAddress, 0, Size * 2);
+            _memory.Map(CodeBaseAddress, 0, Size * 2, MemoryMapFlags.Private);
 
             _context = CpuContext.CreateExecutionContext();
             Translator.IsReadyForTranslation.Set();

Ryujinx.Tests/Cpu/CpuTest32.cs

@@ -48,7 +48,7 @@ namespace Ryujinx.Tests.Cpu
             _ram = new MemoryBlock(Size * 2);
             _memory = new MemoryManager(_ram, 1ul << 16);
             _memory.IncrementReferenceCount();
-            _memory.Map(CodeBaseAddress, 0, Size * 2);
+            _memory.Map(CodeBaseAddress, 0, Size * 2, MemoryMapFlags.Private);
 
             _context = CpuContext.CreateExecutionContext();
             _context.IsAarch32 = true;

Ryujinx.Ui.Common/App/ApplicationLibrary.cs

@@ -38,9 +38,9 @@ namespace Ryujinx.Ui.App.Common
         private readonly byte[] _nroIcon;
         private readonly byte[] _nsoIcon;
 
-        private VirtualFileSystem       _virtualFileSystem;
+        private readonly VirtualFileSystem _virtualFileSystem;
-        private Language                _desiredTitleLanguage;
+        private Language                   _desiredTitleLanguage;
-        private CancellationTokenSource _cancellationToken;
+        private CancellationTokenSource    _cancellationToken;
 
         public ApplicationLibrary(VirtualFileSystem virtualFileSystem)
         {
@@ -53,7 +53,7 @@ namespace Ryujinx.Ui.App.Common
             _nsoIcon = GetResourceBytes("Ryujinx.Ui.Common.Resources.Icon_NSO.png");
         }
 
-        private byte[] GetResourceBytes(string resourceName)
+        private static byte[] GetResourceBytes(string resourceName)
         {
             Stream resourceStream    = Assembly.GetCallingAssembly().GetManifestResourceStream(resourceName);
             byte[] resourceByteArray = new byte[resourceStream.Length];
@@ -68,9 +68,9 @@ namespace Ryujinx.Ui.App.Common
             _cancellationToken?.Cancel();
         }
 
-        public void ReadControlData(IFileSystem controlFs, Span<byte> outProperty)
+        public static void ReadControlData(IFileSystem controlFs, Span<byte> outProperty)
         {
-            using var controlFile = new UniqueRef<IFile>();
+            using UniqueRef<IFile> controlFile = new();
 
             controlFs.OpenFile(ref controlFile.Ref(), "/control.nacp".ToU8Span(), OpenMode.Read).ThrowIfFailure();
             controlFile.Get.Read(out _, 0, outProperty, ReadOption.None).ThrowIfFailure();
@@ -86,7 +86,7 @@ namespace Ryujinx.Ui.App.Common
             _cancellationToken = new CancellationTokenSource();
 
             // Builds the applications list with paths to found applications
-            List<string> applications = new List<string>();
+            List<string> applications = new();
 
             try
             {
@@ -143,251 +143,246 @@ namespace Ryujinx.Ui.App.Common
                     string version = "0";
                     byte[] applicationIcon = null;
 
-                    BlitStruct<ApplicationControlProperty> controlHolder = new BlitStruct<ApplicationControlProperty>(1);
+                    BlitStruct<ApplicationControlProperty> controlHolder = new(1);
 
                     try
                     {
                         string extension = Path.GetExtension(applicationPath).ToLower();
 
-                        using (FileStream file = new FileStream(applicationPath, FileMode.Open, FileAccess.Read))
+                        using FileStream file = new(applicationPath, FileMode.Open, FileAccess.Read);
+
+                        if (extension == ".nsp" || extension == ".pfs0" || extension == ".xci")
                         {
-                            if (extension == ".nsp" || extension == ".pfs0" || extension == ".xci")
+                            try
                             {
-                                try
+                                PartitionFileSystem pfs;
+
+                                bool isExeFs = false;
+
+                                if (extension == ".xci")
                                 {
-                                    PartitionFileSystem pfs;
+                                    Xci xci = new(_virtualFileSystem.KeySet, file.AsStorage());
 
-                                    bool isExeFs = false;
+                                    pfs = xci.OpenPartition(XciPartitionType.Secure);
+                                }
+                                else
+                                {
+                                    pfs = new PartitionFileSystem(file.AsStorage());
 
-                                    if (extension == ".xci")
+                                    // If the NSP doesn't have a main NCA, decrement the number of applications found and then continue to the next application.
+                                    bool hasMainNca = false;
+
+                                    foreach (DirectoryEntryEx fileEntry in pfs.EnumerateEntries("/", "*"))
                                     {
-                                        Xci xci = new Xci(_virtualFileSystem.KeySet, file.AsStorage());
+                                        if (Path.GetExtension(fileEntry.FullPath).ToLower() == ".nca")
-
-                                        pfs = xci.OpenPartition(XciPartitionType.Secure);
-                                    }
-                                    else
-                                    {
-                                        pfs = new PartitionFileSystem(file.AsStorage());
-
-                                        // If the NSP doesn't have a main NCA, decrement the number of applications found and then continue to the next application.
-                                        bool hasMainNca = false;
-
-                                        foreach (DirectoryEntryEx fileEntry in pfs.EnumerateEntries("/", "*"))
                                         {
-                                            if (Path.GetExtension(fileEntry.FullPath).ToLower() == ".nca")
+                                            using UniqueRef<IFile> ncaFile = new();
+
+                                            pfs.OpenFile(ref ncaFile.Ref(), fileEntry.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
+
+                                            Nca nca = new(_virtualFileSystem.KeySet, ncaFile.Get.AsStorage());
+                                            int dataIndex = Nca.GetSectionIndexFromType(NcaSectionType.Data, NcaContentType.Program);
+
+                                            // Some main NCAs don't have a data partition, so check if the partition exists before opening it
+                                            if (nca.Header.ContentType == NcaContentType.Program && !(nca.SectionExists(NcaSectionType.Data) && nca.Header.GetFsHeader(dataIndex).IsPatchSection()))
                                             {
-                                                using var ncaFile = new UniqueRef<IFile>();
+                                                hasMainNca = true;
 
-                                                pfs.OpenFile(ref ncaFile.Ref(), fileEntry.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
+                                                break;
-
-                                                Nca nca = new Nca(_virtualFileSystem.KeySet, ncaFile.Get.AsStorage());
-                                                int dataIndex = Nca.GetSectionIndexFromType(NcaSectionType.Data, NcaContentType.Program);
-
-                                                // Some main NCAs don't have a data partition, so check if the partition exists before opening it
-                                                if (nca.Header.ContentType == NcaContentType.Program && !(nca.SectionExists(NcaSectionType.Data) && nca.Header.GetFsHeader(dataIndex).IsPatchSection()))
-                                                {
-                                                    hasMainNca = true;
-
-                                                    break;
-                                                }
-                                            }
-                                            else if (Path.GetFileNameWithoutExtension(fileEntry.FullPath) == "main")
-                                            {
-                                                isExeFs = true;
                                             }
                                         }
-
+                                        else if (Path.GetFileNameWithoutExtension(fileEntry.FullPath) == "main")
-                                        if (!hasMainNca && !isExeFs)
                                         {
-                                            numApplicationsFound--;
+                                            isExeFs = true;
-
-                                            continue;
                                         }
                                     }
 
-                                    if (isExeFs)
+                                    if (!hasMainNca && !isExeFs)
-                                    {
-                                        applicationIcon = _nspIcon;
-
-                                        using var npdmFile = new UniqueRef<IFile>();
-
-                                        Result result = pfs.OpenFile(ref npdmFile.Ref(), "/main.npdm".ToU8Span(), OpenMode.Read);
-
-                                        if (ResultFs.PathNotFound.Includes(result))
-                                        {
-                                            Npdm npdm = new Npdm(npdmFile.Get.AsStream());
-
-                                            titleName = npdm.TitleName;
-                                            titleId = npdm.Aci0.TitleId.ToString("x16");
-                                        }
-                                    }
-                                    else
-                                    {
-                                        GetControlFsAndTitleId(pfs, out IFileSystem controlFs, out titleId);
-
-                                        // Check if there is an update available.
-                                        if (IsUpdateApplied(titleId, out IFileSystem updatedControlFs))
-                                        {
-                                            // Replace the original ControlFs by the updated one.
-                                            controlFs = updatedControlFs;
-                                        }
-
-                                        ReadControlData(controlFs, controlHolder.ByteSpan);
-
-                                        GetGameInformation(ref controlHolder.Value, out titleName, out _, out developer, out version);
-
-                                        // Read the icon from the ControlFS and store it as a byte array
-                                        try
-                                        {
-                                            using var icon = new UniqueRef<IFile>();
-
-                                            controlFs.OpenFile(ref icon.Ref(), $"/icon_{_desiredTitleLanguage}.dat".ToU8Span(), OpenMode.Read).ThrowIfFailure();
-
-                                            using (MemoryStream stream = new MemoryStream())
-                                            {
-                                                icon.Get.AsStream().CopyTo(stream);
-                                                applicationIcon = stream.ToArray();
-                                            }
-                                        }
-                                        catch (HorizonResultException)
-                                        {
-                                            foreach (DirectoryEntryEx entry in controlFs.EnumerateEntries("/", "*"))
-                                            {
-                                                if (entry.Name == "control.nacp")
-                                                {
-                                                    continue;
-                                                }
-
-                                                using var icon = new UniqueRef<IFile>();
-
-                                                controlFs.OpenFile(ref icon.Ref(), entry.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
-
-                                                using (MemoryStream stream = new MemoryStream())
-                                                {
-                                                    icon.Get.AsStream().CopyTo(stream);
-                                                    applicationIcon = stream.ToArray();
-                                                }
-
-                                                if (applicationIcon != null)
-                                                {
-                                                    break;
-                                                }
-                                            }
-
-                                            if (applicationIcon == null)
-                                            {
-                                                applicationIcon = extension == ".xci" ? _xciIcon : _nspIcon;
-                                            }
-                                        }
-                                    }
-                                }
-                                catch (MissingKeyException exception)
-                                {
-                                    applicationIcon = extension == ".xci" ? _xciIcon : _nspIcon;
-
-                                    Logger.Warning?.Print(LogClass.Application, $"Your key set is missing a key with the name: {exception.Name}");
-                                }
-                                catch (InvalidDataException)
-                                {
-                                    applicationIcon = extension == ".xci" ? _xciIcon : _nspIcon;
-
-                                    Logger.Warning?.Print(LogClass.Application, $"The header key is incorrect or missing and therefore the NCA header content type check has failed. Errored File: {applicationPath}");
-                                }
-                                catch (Exception exception)
-                                {
-                                    Logger.Warning?.Print(LogClass.Application, $"The file encountered was not of a valid type. File: '{applicationPath}' Error: {exception}");
-
-                                    numApplicationsFound--;
-
-                                    continue;
-                                }
-                            }
-                            else if (extension == ".nro")
-                            {
-                                BinaryReader reader = new BinaryReader(file);
-
-                                byte[] Read(long position, int size)
-                                {
-                                    file.Seek(position, SeekOrigin.Begin);
-
-                                    return reader.ReadBytes(size);
-                                }
-
-                                try
-                                {
-                                    file.Seek(24, SeekOrigin.Begin);
-
-                                    int assetOffset = reader.ReadInt32();
-
-                                    if (Encoding.ASCII.GetString(Read(assetOffset, 4)) == "ASET")
-                                    {
-                                        byte[] iconSectionInfo = Read(assetOffset + 8, 0x10);
-
-                                        long iconOffset = BitConverter.ToInt64(iconSectionInfo, 0);
-                                        long iconSize = BitConverter.ToInt64(iconSectionInfo, 8);
-
-                                        ulong nacpOffset = reader.ReadUInt64();
-                                        ulong nacpSize = reader.ReadUInt64();
-
-                                        // Reads and stores game icon as byte array
-                                        applicationIcon = Read(assetOffset + iconOffset, (int)iconSize);
-
-                                        // Read the NACP data
-                                        Read(assetOffset + (int)nacpOffset, (int)nacpSize).AsSpan().CopyTo(controlHolder.ByteSpan);
-
-                                        GetGameInformation(ref controlHolder.Value, out titleName, out titleId, out developer, out version);
-                                    }
-                                    else
-                                    {
-                                        applicationIcon = _nroIcon;
-                                        titleName = Path.GetFileNameWithoutExtension(applicationPath);
-                                    }
-                                }
-                                catch
-                                {
-                                    Logger.Warning?.Print(LogClass.Application, $"The file encountered was not of a valid type. Errored File: {applicationPath}");
-
-                                    numApplicationsFound--;
-
-                                    continue;
-                                }
-                            }
-                            else if (extension == ".nca")
-                            {
-                                try
-                                {
-                                    Nca nca = new Nca(_virtualFileSystem.KeySet, new FileStream(applicationPath, FileMode.Open, FileAccess.Read).AsStorage());
-                                    int dataIndex = Nca.GetSectionIndexFromType(NcaSectionType.Data, NcaContentType.Program);
-
-                                    if (nca.Header.ContentType != NcaContentType.Program || (nca.SectionExists(NcaSectionType.Data) && nca.Header.GetFsHeader(dataIndex).IsPatchSection()))
                                     {
                                         numApplicationsFound--;
 
                                         continue;
                                     }
                                 }
-                                catch (InvalidDataException)
-                                {
-                                    Logger.Warning?.Print(LogClass.Application, $"The NCA header content type check has failed. This is usually because the header key is incorrect or missing. Errored File: {applicationPath}");
-                                }
-                                catch
-                                {
-                                    Logger.Warning?.Print(LogClass.Application, $"The file encountered was not of a valid type. Errored File: {applicationPath}");
 
+                                if (isExeFs)
+                                {
+                                    applicationIcon = _nspIcon;
+
+                                    using UniqueRef<IFile> npdmFile = new();
+
+                                    Result result = pfs.OpenFile(ref npdmFile.Ref(), "/main.npdm".ToU8Span(), OpenMode.Read);
+
+                                    if (ResultFs.PathNotFound.Includes(result))
+                                    {
+                                        Npdm npdm = new(npdmFile.Get.AsStream());
+
+                                        titleName = npdm.TitleName;
+                                        titleId = npdm.Aci0.TitleId.ToString("x16");
+                                    }
+                                }
+                                else
+                                {
+                                    GetControlFsAndTitleId(pfs, out IFileSystem controlFs, out titleId);
+
+                                    // Check if there is an update available.
+                                    if (IsUpdateApplied(titleId, out IFileSystem updatedControlFs))
+                                    {
+                                        // Replace the original ControlFs by the updated one.
+                                        controlFs = updatedControlFs;
+                                    }
+
+                                    ReadControlData(controlFs, controlHolder.ByteSpan);
+
+                                    GetGameInformation(ref controlHolder.Value, out titleName, out _, out developer, out version);
+
+                                    // Read the icon from the ControlFS and store it as a byte array
+                                    try
+                                    {
+                                        using UniqueRef<IFile> icon = new();
+
+                                        controlFs.OpenFile(ref icon.Ref(), $"/icon_{_desiredTitleLanguage}.dat".ToU8Span(), OpenMode.Read).ThrowIfFailure();
+
+                                        using MemoryStream stream = new();
+
+                                        icon.Get.AsStream().CopyTo(stream);
+                                        applicationIcon = stream.ToArray();
+                                    }
+                                    catch (HorizonResultException)
+                                    {
+                                        foreach (DirectoryEntryEx entry in controlFs.EnumerateEntries("/", "*"))
+                                        {
+                                            if (entry.Name == "control.nacp")
+                                            {
+                                                continue;
+                                            }
+
+                                            using var icon = new UniqueRef<IFile>();
+
+                                            controlFs.OpenFile(ref icon.Ref(), entry.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
+
+                                            using MemoryStream stream = new();
+                                            
+                                            icon.Get.AsStream().CopyTo(stream);
+                                            applicationIcon = stream.ToArray();
+                                            
+
+                                            if (applicationIcon != null)
+                                            {
+                                                break;
+                                            }
+                                        }
+
+                                        applicationIcon ??= extension == ".xci" ? _xciIcon : _nspIcon;
+                                    }
+                                }
+                            }
+                            catch (MissingKeyException exception)
+                            {
+                                applicationIcon = extension == ".xci" ? _xciIcon : _nspIcon;
+
+                                Logger.Warning?.Print(LogClass.Application, $"Your key set is missing a key with the name: {exception.Name}");
+                            }
+                            catch (InvalidDataException)
+                            {
+                                applicationIcon = extension == ".xci" ? _xciIcon : _nspIcon;
+
+                                Logger.Warning?.Print(LogClass.Application, $"The header key is incorrect or missing and therefore the NCA header content type check has failed. Errored File: {applicationPath}");
+                            }
+                            catch (Exception exception)
+                            {
+                                Logger.Warning?.Print(LogClass.Application, $"The file encountered was not of a valid type. File: '{applicationPath}' Error: {exception}");
+
+                                numApplicationsFound--;
+
+                                continue;
+                            }
+                        }
+                        else if (extension == ".nro")
+                        {
+                            BinaryReader reader = new(file);
+
+                            byte[] Read(long position, int size)
+                            {
+                                file.Seek(position, SeekOrigin.Begin);
+
+                                return reader.ReadBytes(size);
+                            }
+
+                            try
+                            {
+                                file.Seek(24, SeekOrigin.Begin);
+
+                                int assetOffset = reader.ReadInt32();
+
+                                if (Encoding.ASCII.GetString(Read(assetOffset, 4)) == "ASET")
+                                {
+                                    byte[] iconSectionInfo = Read(assetOffset + 8, 0x10);
+
+                                    long iconOffset = BitConverter.ToInt64(iconSectionInfo, 0);
+                                    long iconSize = BitConverter.ToInt64(iconSectionInfo, 8);
+
+                                    ulong nacpOffset = reader.ReadUInt64();
+                                    ulong nacpSize = reader.ReadUInt64();
+
+                                    // Reads and stores game icon as byte array
+                                    applicationIcon = Read(assetOffset + iconOffset, (int)iconSize);
+
+                                    // Read the NACP data
+                                    Read(assetOffset + (int)nacpOffset, (int)nacpSize).AsSpan().CopyTo(controlHolder.ByteSpan);
+
+                                    GetGameInformation(ref controlHolder.Value, out titleName, out titleId, out developer, out version);
+                                }
+                                else
+                                {
+                                    applicationIcon = _nroIcon;
+                                    titleName = Path.GetFileNameWithoutExtension(applicationPath);
+                                }
+                            }
+                            catch
+                            {
+                                Logger.Warning?.Print(LogClass.Application, $"The file encountered was not of a valid type. Errored File: {applicationPath}");
+
+                                numApplicationsFound--;
+
+                                continue;
+                            }
+                        }
+                        else if (extension == ".nca")
+                        {
+                            try
+                            {
+                                Nca nca = new(_virtualFileSystem.KeySet, new FileStream(applicationPath, FileMode.Open, FileAccess.Read).AsStorage());
+                                int dataIndex = Nca.GetSectionIndexFromType(NcaSectionType.Data, NcaContentType.Program);
+
+                                if (nca.Header.ContentType != NcaContentType.Program || (nca.SectionExists(NcaSectionType.Data) && nca.Header.GetFsHeader(dataIndex).IsPatchSection()))
+                                {
                                     numApplicationsFound--;
 
                                     continue;
                                 }
-
-                                applicationIcon = _ncaIcon;
-                                titleName = Path.GetFileNameWithoutExtension(applicationPath);
                             }
-                            // If its an NSO we just set defaults
+                            catch (InvalidDataException)
-                            else if (extension == ".nso")
                             {
-                                applicationIcon = _nsoIcon;
+                                Logger.Warning?.Print(LogClass.Application, $"The NCA header content type check has failed. This is usually because the header key is incorrect or missing. Errored File: {applicationPath}");
-                                titleName = Path.GetFileNameWithoutExtension(applicationPath);
                             }
+                            catch
+                            {
+                                Logger.Warning?.Print(LogClass.Application, $"The file encountered was not of a valid type. Errored File: {applicationPath}");
+
+                                numApplicationsFound--;
+
+                                continue;
+                            }
+
+                            applicationIcon = _ncaIcon;
+                            titleName = Path.GetFileNameWithoutExtension(applicationPath);
+                        }
+                        // If its an NSO we just set defaults
+                        else if (extension == ".nso")
+                        {
+                            applicationIcon = _nsoIcon;
+                            titleName = Path.GetFileNameWithoutExtension(applicationPath);
                         }
                     }
                     catch (IOException exception)
@@ -404,14 +399,21 @@ namespace Ryujinx.Ui.App.Common
                         appMetadata.Title = titleName;
                     });
 
-                    if (appMetadata.LastPlayed != "Never" && !DateTime.TryParse(appMetadata.LastPlayed, out _))
+                    if (appMetadata.LastPlayed != "Never")
-                    {
+                    { 
-                        Logger.Warning?.Print(LogClass.Application, $"Last played datetime \"{appMetadata.LastPlayed}\" is invalid for current system culture, skipping (did current culture change?)");
+                        if (!DateTime.TryParse(appMetadata.LastPlayed, out _))
+                        {
+                            Logger.Warning?.Print(LogClass.Application, $"Last played datetime \"{appMetadata.LastPlayed}\" is invalid for current system culture, skipping (did current culture change?)");
 
-                        appMetadata.LastPlayed = "Never";
+                            appMetadata.LastPlayed = "Never";
+                        }
+                        else
+                        {
+                            appMetadata.LastPlayed = appMetadata.LastPlayed[..^3];
+                        }
                     }
 
-                    ApplicationData data = new ApplicationData
+                    ApplicationData data = new()
                     {
                         Favorite = appMetadata.Favorite,
                         Icon = applicationIcon,
@@ -419,7 +421,7 @@ namespace Ryujinx.Ui.App.Common
                         TitleId = titleId,
                         Developer = developer,
                         Version = version,
-                        TimePlayed = ConvertSecondsToReadableString(appMetadata.TimePlayed),
+                        TimePlayed = ConvertSecondsToFormattedString(appMetadata.TimePlayed),
                         TimePlayedNum = appMetadata.TimePlayed,
                         LastPlayed = appMetadata.LastPlayed,
                         FileExtension = Path.GetExtension(applicationPath).ToUpper().Remove(0, 1),
@@ -488,10 +490,9 @@ namespace Ryujinx.Ui.App.Common
 
                 appMetadata = new ApplicationMetadata();
 
-                using (FileStream stream = File.Create(metadataFile, 4096, FileOptions.WriteThrough))
+                using FileStream stream = File.Create(metadataFile, 4096, FileOptions.WriteThrough);
-                {
+
-                    JsonHelper.Serialize(stream, appMetadata, true);
+                JsonHelper.Serialize(stream, appMetadata, true);
-                }
             }
 
             try
@@ -509,10 +510,9 @@ namespace Ryujinx.Ui.App.Common
             {
                 modifyFunction(appMetadata);
 
-                using (FileStream stream = File.Create(metadataFile, 4096, FileOptions.WriteThrough))
+                using FileStream stream = File.Create(metadataFile, 4096, FileOptions.WriteThrough);
-                {
+
-                    JsonHelper.Serialize(stream, appMetadata, true);
+                JsonHelper.Serialize(stream, appMetadata, true);
-                }
             }
 
             return appMetadata;
@@ -529,192 +529,177 @@ namespace Ryujinx.Ui.App.Common
                 {
                     string extension = Path.GetExtension(applicationPath).ToLower();
 
-                    using (FileStream file = new FileStream(applicationPath, FileMode.Open, FileAccess.Read))
+                    using FileStream file = new(applicationPath, FileMode.Open, FileAccess.Read);
+
+                    if (extension == ".nsp" || extension == ".pfs0" || extension == ".xci")
                     {
-                        if (extension == ".nsp" || extension == ".pfs0" || extension == ".xci")
+                        try
                         {
-                            try
+                            PartitionFileSystem pfs;
+
+                            bool isExeFs = false;
+
+                            if (extension == ".xci")
                             {
-                                PartitionFileSystem pfs;
+                                Xci xci = new(_virtualFileSystem.KeySet, file.AsStorage());
 
-                                bool isExeFs = false;
+                                pfs = xci.OpenPartition(XciPartitionType.Secure);
+                            }
+                            else
+                            {
+                                pfs = new PartitionFileSystem(file.AsStorage());
 
-                                if (extension == ".xci")
+                                foreach (DirectoryEntryEx fileEntry in pfs.EnumerateEntries("/", "*"))
                                 {
-                                    Xci xci = new(_virtualFileSystem.KeySet, file.AsStorage());
+                                    if (Path.GetFileNameWithoutExtension(fileEntry.FullPath) == "main")
-
-                                    pfs = xci.OpenPartition(XciPartitionType.Secure);
-                                }
-                                else
-                                {
-                                    pfs = new PartitionFileSystem(file.AsStorage());
-
-                                    foreach (DirectoryEntryEx fileEntry in pfs.EnumerateEntries("/", "*"))
                                     {
-                                        if (Path.GetFileNameWithoutExtension(fileEntry.FullPath) == "main")
+                                        isExeFs = true;
-                                        {
-                                            isExeFs = true;
-                                        }
                                     }
                                 }
+                            }
 
-                                if (isExeFs)
+                            if (isExeFs)
+                            {
+                                applicationIcon = _nspIcon;
+                            }
+                            else
+                            {
+                                // Store the ControlFS in variable called controlFs
+                                GetControlFsAndTitleId(pfs, out IFileSystem controlFs, out _);
+
+                                // Read the icon from the ControlFS and store it as a byte array
+                                try
                                 {
-                                    applicationIcon = _nspIcon;
+                                    using var icon = new UniqueRef<IFile>();
+
+                                    controlFs.OpenFile(ref icon.Ref(), $"/icon_{_desiredTitleLanguage}.dat".ToU8Span(), OpenMode.Read).ThrowIfFailure();
+
+                                    using MemoryStream stream = new();
+
+                                    icon.Get.AsStream().CopyTo(stream);
+                                    applicationIcon = stream.ToArray();
                                 }
-                                else
+                                catch (HorizonResultException)
                                 {
-                                    // Store the ControlFS in variable called controlFs
+                                    foreach (DirectoryEntryEx entry in controlFs.EnumerateEntries("/", "*"))
-                                    GetControlFsAndTitleId(pfs, out IFileSystem controlFs, out _);
-
-                                    // Read the icon from the ControlFS and store it as a byte array
-                                    try
                                     {
+                                        if (entry.Name == "control.nacp")
+                                        {
+                                            continue;
+                                        }
+
                                         using var icon = new UniqueRef<IFile>();
 
-                                        controlFs.OpenFile(ref icon.Ref(), $"/icon_{_desiredTitleLanguage}.dat".ToU8Span(), OpenMode.Read).ThrowIfFailure();
+                                        controlFs.OpenFile(ref icon.Ref(), entry.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
 
-                                        using (MemoryStream stream = new MemoryStream())
+                                        using (MemoryStream stream = new())
                                         {
                                             icon.Get.AsStream().CopyTo(stream);
                                             applicationIcon = stream.ToArray();
                                         }
-                                    }
+
-                                    catch (HorizonResultException)
+                                        if (applicationIcon != null)
-                                    {
-                                        foreach (DirectoryEntryEx entry in controlFs.EnumerateEntries("/", "*"))
                                         {
-                                            if (entry.Name == "control.nacp")
+                                            break;
-                                            {
-                                                continue;
-                                            }
-
-                                            using var icon = new UniqueRef<IFile>();
-
-                                            controlFs.OpenFile(ref icon.Ref(), entry.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
-
-                                            using (MemoryStream stream = new MemoryStream())
-                                            {
-                                                icon.Get.AsStream().CopyTo(stream);
-                                                applicationIcon = stream.ToArray();
-                                            }
-
-                                            if (applicationIcon != null)
-                                            {
-                                                break;
-                                            }
-                                        }
-
-                                        if (applicationIcon == null)
-                                        {
-                                            applicationIcon = extension == ".xci" ? _xciIcon : _nspIcon;
                                         }
                                     }
+
+                                    applicationIcon ??= extension == ".xci" ? _xciIcon : _nspIcon;
                                 }
                             }
-                            catch (MissingKeyException)
-                            {
-                                applicationIcon = extension == ".xci"
-                                    ? _xciIcon
-                                    : _nspIcon;
-                            }
-                            catch (InvalidDataException)
-                            {
-                                applicationIcon = extension == ".xci"
-                                    ? _xciIcon
-                                    : _nspIcon;
-                            }
-                            catch (Exception exception)
-                            {
-                                Logger.Warning?.Print(LogClass.Application,
-                                    $"The file encountered was not of a valid type. File: '{applicationPath}' Error: {exception}");
-                            }
                         }
-                        else if (extension == ".nro")
+                        catch (MissingKeyException)
                         {
-                            BinaryReader reader = new(file);
+                            applicationIcon = extension == ".xci" ? _xciIcon : _nspIcon;
-
-                            byte[] Read(long position, int size)
-                            {
-                                file.Seek(position, SeekOrigin.Begin);
-
-                                return reader.ReadBytes(size);
-                            }
-
-                            try
-                            {
-                                file.Seek(24, SeekOrigin.Begin);
-
-                                int assetOffset = reader.ReadInt32();
-
-                                if (Encoding.ASCII.GetString(Read(assetOffset, 4)) == "ASET")
-                                {
-                                    byte[] iconSectionInfo = Read(assetOffset + 8, 0x10);
-
-                                    long iconOffset = BitConverter.ToInt64(iconSectionInfo, 0);
-                                    long iconSize = BitConverter.ToInt64(iconSectionInfo, 8);
-
-                                    // Reads and stores game icon as byte array
-                                    applicationIcon = Read(assetOffset + iconOffset, (int)iconSize);
-                                }
-                                else
-                                {
-                                    applicationIcon = _nroIcon;
-                                }
-                            }
-                            catch
-                            {
-                                Logger.Warning?.Print(LogClass.Application,
-                                    $"The file encountered was not of a valid type. Errored File: {applicationPath}");
-                            }
                         }
-                        else if (extension == ".nca")
+                        catch (InvalidDataException)
                         {
-                            applicationIcon = _ncaIcon;
+                            applicationIcon = extension == ".xci" ? _xciIcon : _nspIcon;
                         }
-                        // If its an NSO we just set defaults
+                        catch (Exception exception)
-                        else if (extension == ".nso")
                         {
-                            applicationIcon = _nsoIcon;
+                            Logger.Warning?.Print(LogClass.Application, $"The file encountered was not of a valid type. File: '{applicationPath}' Error: {exception}");
                         }
                     }
+                    else if (extension == ".nro")
+                    {
+                        BinaryReader reader = new(file);
+
+                        byte[] Read(long position, int size)
+                        {
+                            file.Seek(position, SeekOrigin.Begin);
+
+                            return reader.ReadBytes(size);
+                        }
+
+                        try
+                        {
+                            file.Seek(24, SeekOrigin.Begin);
+
+                            int assetOffset = reader.ReadInt32();
+
+                            if (Encoding.ASCII.GetString(Read(assetOffset, 4)) == "ASET")
+                            {
+                                byte[] iconSectionInfo = Read(assetOffset + 8, 0x10);
+
+                                long iconOffset = BitConverter.ToInt64(iconSectionInfo, 0);
+                                long iconSize = BitConverter.ToInt64(iconSectionInfo, 8);
+
+                                // Reads and stores game icon as byte array
+                                applicationIcon = Read(assetOffset + iconOffset, (int)iconSize);
+                            }
+                            else
+                            {
+                                applicationIcon = _nroIcon;
+                            }
+                        }
+                        catch
+                        {
+                            Logger.Warning?.Print(LogClass.Application, $"The file encountered was not of a valid type. Errored File: {applicationPath}");
+                        }
+                    }
+                    else if (extension == ".nca")
+                    {
+                        applicationIcon = _ncaIcon;
+                    }
+                    // If its an NSO we just set defaults
+                    else if (extension == ".nso")
+                    {
+                        applicationIcon = _nsoIcon;
+                    }
                 }
             }
             catch(Exception)
             {
-                Logger.Warning?.Print(LogClass.Application,
+                Logger.Warning?.Print(LogClass.Application, $"Could not retrieve a valid icon for the app. Default icon will be used. Errored File: {applicationPath}");
-                    $"Could not retrieve a valid icon for the app. Default icon will be used. Errored File: {applicationPath}");
             }
 
             return applicationIcon ?? _ncaIcon;
         }
 
-        private string ConvertSecondsToReadableString(double seconds)
+        private static string ConvertSecondsToFormattedString(double seconds)
         {
-            const int secondsPerMinute = 60;
+            System.TimeSpan time = System.TimeSpan.FromSeconds(seconds);
-            const int secondsPerHour   = secondsPerMinute * 60;
-            const int secondsPerDay    = secondsPerHour   * 24;
 
-            string readableString;
+            string timeString;
-
+            if (time.Days != 0)
-            if (seconds < secondsPerMinute)
             {
-                readableString = $"{seconds} seconds";
+                timeString = $"{time.Days}d {time.Hours:D2}h {time.Minutes:D2}m";
             }
-            else if (seconds < secondsPerHour)
+            else if (time.Hours != 0)
             {
-                readableString = $"{Math.Round(seconds / secondsPerMinute, 0, MidpointRounding.AwayFromZero)} minutes";
+                timeString = $"{time.Hours:D2}h {time.Minutes:D2}m";
             }
-            else if (seconds < secondsPerDay)
+            else if (time.Minutes != 0)
             {
-                readableString = $"{Math.Round(seconds / secondsPerHour, 1, MidpointRounding.AwayFromZero)} hours";
+                timeString = $"{time.Minutes:D2}m";
             }
             else
             {
-                readableString = $"{Math.Round(seconds / secondsPerDay, 1, MidpointRounding.AwayFromZero)} days";
+                timeString = "Never";
             }
 
-            return readableString;
+            return timeString;
         }
 
         private void GetGameInformation(ref ApplicationControlProperty controlData, out string titleName, out string titleId, out string publisher, out string version)
@@ -797,8 +782,7 @@ namespace Ryujinx.Ui.App.Common
             }
             catch (InvalidDataException)
             {
-                Logger.Warning?.Print(LogClass.Application,
+                Logger.Warning?.Print(LogClass.Application, $"The header key is incorrect or missing and therefore the NCA header content type check has failed. Errored File: {updatePath}");
-                    $"The header key is incorrect or missing and therefore the NCA header content type check has failed. Errored File: {updatePath}");
             }
             catch (MissingKeyException exception)
             {

Ryujinx.Ui.Common/Configuration/ConfigurationState.cs

@@ -617,7 +617,7 @@ namespace Ryujinx.Ui.Common.Configuration
             Graphics.ResScaleCustom.Value             = 1.0f;
             Graphics.MaxAnisotropy.Value              = -1.0f;
             Graphics.AspectRatio.Value                = AspectRatio.Fixed16x9;
-            Graphics.GraphicsBackend.Value            = GraphicsBackend.OpenGl;
+            Graphics.GraphicsBackend.Value            = OperatingSystem.IsMacOS() ? GraphicsBackend.Vulkan : GraphicsBackend.OpenGl;
             Graphics.PreferredGpu.Value               = "";
             Graphics.ShadersDumpPath.Value            = "";
             Logger.EnableDebug.Value                  = false;

Ryujinx.Ui.Common/Helper/OpenHelper.cs

@@ -1,19 +1,75 @@
 using Ryujinx.Common.Logging;
 using System;
 using System.Diagnostics;
+using System.IO;
+using System.Runtime.InteropServices;
 
 namespace Ryujinx.Ui.Common.Helper
 {
-    public static class OpenHelper
+    public static partial class OpenHelper
     {
+        [LibraryImport("shell32.dll", SetLastError = true)]
+        public static partial int SHOpenFolderAndSelectItems(IntPtr pidlFolder, uint cidl, IntPtr apidl, uint dwFlags);
+
+        [LibraryImport("shell32.dll", SetLastError = true)]
+        public static partial void ILFree(IntPtr pidlList);
+
+        [LibraryImport("shell32.dll", SetLastError = true)]
+        public static partial IntPtr ILCreateFromPathW([MarshalAs(UnmanagedType.LPWStr)] string pszPath);
+
         public static void OpenFolder(string path)
         {
-            Process.Start(new ProcessStartInfo
+            if (Directory.Exists(path))
             {
-                FileName        = path,
+                Process.Start(new ProcessStartInfo
-                UseShellExecute = true,
+                {
-                Verb            = "open"
+                    FileName        = path,
-            });
+                    UseShellExecute = true,
+                    Verb            = "open"
+                });
+            }
+            else
+            {
+                Logger.Notice.Print(LogClass.Application, $"Directory \"{path}\" doesn't exist!");
+            }
+        }
+
+        public static void LocateFile(string path)
+        {
+            if (File.Exists(path))
+            {
+                if (OperatingSystem.IsWindows())
+                {
+                    IntPtr pidlList = ILCreateFromPathW(path);
+                    if (pidlList != IntPtr.Zero)
+                    {
+                        try
+                        {
+                            Marshal.ThrowExceptionForHR(SHOpenFolderAndSelectItems(pidlList, 0, IntPtr.Zero, 0));
+                        }
+                        finally
+                        {
+                            ILFree(pidlList);
+                        }
+                    }
+                }
+                else if (OperatingSystem.IsMacOS())
+                {
+                    Process.Start("open", $"-R \"{path}\"");
+                }
+                else if (OperatingSystem.IsLinux())
+                {
+                    Process.Start("dbus-send", $"--session --print-reply --dest=org.freedesktop.FileManager1 --type=method_call /org/freedesktop/FileManager1 org.freedesktop.FileManager1.ShowItems array:string:\"file://{path}\" string:\"\"");
+                }
+                else
+                {
+                    OpenFolder(Path.GetDirectoryName(path));
+                }
+            }
+            else
+            {
+                Logger.Notice.Print(LogClass.Application, $"File \"{path}\" doesn't exist!");
+            }
         }
 
         public static void OpenUrl(string url)

Ryujinx/Ui/Helper/SortHelper.cs

@@ -7,65 +7,33 @@ namespace Ryujinx.Ui.Helper
     {
         public static int TimePlayedSort(ITreeModel model, TreeIter a, TreeIter b)
         {
-            string aValue = model.GetValue(a, 5).ToString();
+            static string ReverseFormat(string time)
-            string bValue = model.GetValue(b, 5).ToString();
+            {
-            float aFloat;
+                if (time == "Never")
-            float bFloat;
+                {
+                    return "00";
+                }
 
-            if (aValue.Length > 7 && aValue[^7..] == "minutes")
+                var numbers = time.Split(new char[] { 'd', 'h', 'm' });
-            {
+
-                aValue = aValue.Replace("minutes", "");
+                time = time.Replace(" ", "").Replace("d", ".").Replace("h", ":").Replace("m", "");
-                aFloat = (float.Parse(aValue) * 60);
+
-            }
+                if (numbers.Length == 2)
-            else if (aValue.Length > 5 && aValue[^5..] == "hours")
+                {
-            {
+                    return $"00.00:{time}";
-                aValue = aValue.Replace("hours", "");
+                }
-                aFloat = (float.Parse(aValue) * 3600);
+                else if (numbers.Length == 3)
-            }
+                {
-            else if (aValue.Length > 4 && aValue[^4..] == "days")
+                    return $"00.{time}";
-            {
+                }
-                aValue = aValue.Replace("days", "");
+
-                aFloat = (float.Parse(aValue) * 86400);
+                return time;
-            }
-            else
-            {
-                aValue = aValue.Replace("seconds", "");
-                aFloat = float.Parse(aValue);
             }
 
-            if (bValue.Length > 7 && bValue[^7..] == "minutes")
+            string aValue = ReverseFormat(model.GetValue(a, 5).ToString());
-            {
+            string bValue = ReverseFormat(model.GetValue(b, 5).ToString());
-                bValue = bValue.Replace("minutes", "");
-                bFloat = (float.Parse(bValue) * 60);
-            }
-            else if (bValue.Length > 5 && bValue[^5..] == "hours")
-            {
-                bValue = bValue.Replace("hours", "");
-                bFloat = (float.Parse(bValue) * 3600);
-            }
-            else if (bValue.Length > 4 && bValue[^4..] == "days")
-            {
-                bValue =  bValue.Replace("days", "");
-                bFloat = (float.Parse(bValue) * 86400);
-            }
-            else
-            {
-                bValue = bValue[0..^8];
-                bFloat = float.Parse(bValue);
-            }
 
-            if (aFloat > bFloat)
+            return TimeSpan.Compare(TimeSpan.Parse(aValue), TimeSpan.Parse(bValue));
-            {
-                return -1;
-            }
-            else if (bFloat > aFloat)
-            {
-                return 1;
-            }
-            else
-            {
-                return 0;
-            }
         }
 
         public static int LastPlayedSort(ITreeModel model, TreeIter a, TreeIter b)
@@ -123,4 +91,4 @@ namespace Ryujinx.Ui.Helper
             }
         }
     }
-}
+}