CMakeLists: Enforce C4189

This supplements C4101 by detecting initialized but unreferenced local variables
Merge pull request #6459 from lat9nq/ubuntu-fixes
2021-07-03 05:51:31 -04:00 · 2021-06-30 21:47:57 -04:00 · 2021-06-29 00:10:31 -04:00 · 2021-06-28 14:51:49 -04:00 · 2021-06-28 10:14:36 -04:00 · 2021-06-28 10:08:08 -04:00
330 changed files with 7047 additions and 9220 deletions
--- a/.ci/scripts/common/post-upload.sh
+++ b/.ci/scripts/common/post-upload.sh
@@ -9,11 +9,5 @@ cp "${REV_NAME}-source.tar.xz" "$DIR_NAME"

 tar $COMPRESSION_FLAGS "$ARCHIVE_NAME" "$DIR_NAME"

-mv "$DIR_NAME" $RELEASE_NAME
-mv "${REV_NAME}-source.tar.xz" $RELEASE_NAME
-
-7z a "$REV_NAME.7z" $RELEASE_NAME
-
 # move the compiled archive into the artifacts directory to be uploaded by travis releases
 mv "$ARCHIVE_NAME" "${ARTIFACTS_DIR}/"
-mv "$REV_NAME.7z" "${ARTIFACTS_DIR}/"
--- a/.ci/scripts/windows/docker.sh
+++ b/.ci/scripts/windows/docker.sh
@@ -18,19 +18,20 @@ cd ..
 mkdir package

 if [ -d "/usr/x86_64-w64-mingw32/lib/qt5/plugins/platforms/" ]; then
-  QT_PLATFORM_DLL_PATH='/usr/x86_64-w64-mingw32/lib/qt5/plugins/platforms/'
+  QT_PLUGINS_PATH='/usr/x86_64-w64-mingw32/lib/qt5/plugins'
 else
  #fallback to qt
-  QT_PLATFORM_DLL_PATH='/usr/x86_64-w64-mingw32/lib/qt/plugins/platforms/'
+  QT_PLUGINS_PATH='/usr/x86_64-w64-mingw32/lib/qt/plugins'
 fi

 find build/ -name "yuzu*.exe" -exec cp {} 'package' \;

 # copy Qt plugins
 mkdir package/platforms
-cp "${QT_PLATFORM_DLL_PATH}/qwindows.dll" package/platforms/
-cp -rv "${QT_PLATFORM_DLL_PATH}/../mediaservice/" package/
-cp -rv "${QT_PLATFORM_DLL_PATH}/../imageformats/" package/
+cp -v "${QT_PLUGINS_PATH}/platforms/qwindows.dll" package/platforms/
+cp -rv "${QT_PLUGINS_PATH}/mediaservice/" package/
+cp -rv "${QT_PLUGINS_PATH}/imageformats/" package/
+cp -rv "${QT_PLUGINS_PATH}/styles/" package/
 rm -f package/mediaservice/*d.dll

 for i in package/*.exe; do
--- a/.ci/scripts/windows/upload.sh
+++ b/.ci/scripts/windows/upload.sh
@@ -3,8 +3,8 @@
 . .ci/scripts/common/pre-upload.sh

 REV_NAME="yuzu-windows-mingw-${GITDATE}-${GITREV}"
-ARCHIVE_NAME="${REV_NAME}.tar.gz"
-COMPRESSION_FLAGS="-czvf"
+ARCHIVE_NAME="${REV_NAME}.tar.xz"
+COMPRESSION_FLAGS="-cJvf"

 if [ "${RELEASE_NAME}" = "mainline" ]; then
    DIR_NAME="${REV_NAME}"
--- a/.gitmodules
+++ b/.gitmodules
@@ -18,7 +18,7 @@
 	url = https://github.com/libusb/libusb.git
 [submodule "discord-rpc"]
    path = externals/discord-rpc
-    url = https://github.com/discordapp/discord-rpc.git
+    url = https://github.com/discord/discord-rpc.git
 [submodule "Vulkan-Headers"]
    path = externals/Vulkan-Headers
    url = https://github.com/KhronosGroup/Vulkan-Headers.git
@@ -43,3 +43,6 @@
 [submodule "SDL"]
 	path = externals/SDL
 	url = https://github.com/libsdl-org/SDL.git
+[submodule "externals/cpp-httplib"]
+	path = externals/cpp-httplib
+	url = https://github.com/yhirose/cpp-httplib.git
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,6 +23,8 @@ option(ENABLE_WEB_SERVICE "Enable web services (telemetry, etc.)" ON)

 option(YUZU_USE_BUNDLED_BOOST "Download bundled Boost" OFF)

+option(YUZU_USE_BUNDLED_LIBUSB "Compile bundled libusb" OFF)
+
 CMAKE_DEPENDENT_OPTION(YUZU_USE_BUNDLED_FFMPEG "Download/Build bundled FFmpeg" ON "WIN32" OFF)

 option(YUZU_USE_QT_WEB_ENGINE "Use QtWebEngine for web applet implementation" OFF)
@@ -170,7 +172,7 @@ macro(yuzu_find_packages)
    set(REQUIRED_LIBS
    #    Cmake Pkg Prefix  Version     Conan Pkg
        "Catch2            2.13        catch2/2.13.0"
-        "fmt               7.1         fmt/7.1.2"
+        "fmt               8.0         fmt/8.0.0"
        "lz4               1.8         lz4/1.9.2"
        "nlohmann_json     3.8         nlohmann_json/3.8.0"
        "ZLIB              1.2         zlib/1.2.11"
@@ -251,11 +253,82 @@ if(ENABLE_QT)

    # Check for system Qt on Linux, fallback to bundled Qt
    if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
-        if (NOT YUZU_USE_BUNDLED_QT)
-            find_package(Qt5 ${QT_VERSION} COMPONENTS Widgets QUIET)
-            if (NOT Qt5_FOUND)
-                set(YUZU_USE_BUNDLED_QT ON CACHE BOOL "Download bundled Qt" FORCE)
+        find_package(Qt5 ${QT_VERSION} COMPONENTS Widgets)
+        if (NOT Qt5_FOUND OR YUZU_USE_BUNDLED_QT)
+            # Check for dependencies, then enable bundled Qt download
+
+            # Check that the system GLIBCXX version is compatible
+            find_program(OBJDUMP objdump)
+            if ("${OBJDUMP}" STREQUAL "OBJDUMP-NOTFOUND")
+                message(FATAL_ERROR "Required program `objdump` not found.")
            endif()
+            find_library(LIBSTDCXX libstdc++.so.6)
+            execute_process(
+                COMMAND
+                    ${OBJDUMP} -T ${LIBSTDCXX}
+                COMMAND
+                    grep GLIBCXX_3.4.28
+                COMMAND
+                    sed "s/[0-9a-f]*.*  //"
+                COMMAND
+                    sed "s/ .*//"
+                COMMAND
+                    sort -u
+                OUTPUT_VARIABLE
+                    GLIBCXX_MET
+            )
+            if (NOT GLIBCXX_MET)
+                message(FATAL_ERROR "Qt too old or not found, and bundled Qt package is not \
+                    compatible with this system. Either install Qt ${QT_VERSION}, or provide the path \
+                    to Qt by setting the variable Qt5_ROOT.")
+            endif()
+
+            # Check for headers
+            Include(FindPkgConfig REQUIRED)
+            pkg_check_modules(QT_DEP_GLU QUIET glu>=9.0.0)
+            if (NOT QT_DEP_GLU_FOUND)
+                message(FATAL_ERROR "Qt bundled pacakge dependency `glu` not found. \
+                    Perhaps `libglu1-mesa-dev` needs to be installed?")
+            endif()
+            pkg_check_modules(QT_DEP_MESA QUIET dri>=20.0.8)
+            if (NOT QT_DEP_MESA_FOUND)
+                message(FATAL_ERROR "Qt bundled pacakge dependency `dri` not found. \
+                    Perhaps `mesa-common-dev` needs to be installed?")
+            endif()
+
+            # Check for X libraries
+            set(BUNDLED_QT_REQUIREMENTS
+                libxcb-icccm.so.4
+                libxcb-image.so.0
+                libxcb-keysyms.so.1
+                libxcb-randr.so.0
+                libxcb-render-util.so.0
+                libxcb-render.so.0
+                libxcb-shape.so.0
+                libxcb-shm.so.0
+                libxcb-sync.so.1
+                libxcb-xfixes.so.0
+                libxcb-xinerama.so.0
+                libxcb-xkb.so.1
+                libxcb.so.1
+                libxkbcommon-x11.so.0
+                libxkbcommon.so.0
+            )
+            set(UNRESOLVED_QT_DEPS "")
+            foreach (REQUIREMENT ${BUNDLED_QT_REQUIREMENTS})
+                find_library(BUNDLED_QT_${REQUIREMENT} ${REQUIREMENT})
+                if ("${BUNDLED_QT_${REQUIREMENT}}" STREQUAL "BUNDLED_QT_${REQUIREMENT}-NOTFOUND")
+                    set(UNRESOLVED_QT_DEPS ${UNRESOLVED_QT_DEPS} ${REQUIREMENT})
+                endif()
+                unset(BUNDLED_QT_${REQUIREMENT})
+            endforeach()
+            unset(BUNDLED_QT_REQUIREMENTS)
+
+            if (NOT "${UNRESOLVED_QT_DEPS}" STREQUAL "")
+                message(FATAL_ERROR "Bundled Qt package missing required dependencies: ${UNRESOLVED_QT_DEPS}")
+            endif()
+
+            set(YUZU_USE_BUNDLED_QT ON CACHE BOOL "Download bundled Qt" FORCE)
        endif()
        if (YUZU_USE_BUNDLED_QT)
            # Binary package currently does not support Qt webengine, so make sure it's disabled
@@ -420,14 +493,22 @@ elseif (TARGET Boost::boost)
 endif()

 # Ensure libusb is properly configured (based on dolphin libusb include)
-if(NOT APPLE)
+if(NOT APPLE AND NOT YUZU_USE_BUNDLED_LIBUSB)
    include(FindPkgConfig)
-    find_package(LibUSB)
-endif()
-if (NOT LIBUSB_FOUND)
-    add_subdirectory(externals/libusb)
-    set(LIBUSB_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/externals/libusb/libusb/libusb")
-    set(LIBUSB_LIBRARIES usb)
+    if (PKG_CONFIG_FOUND)
+        pkg_check_modules(LIBUSB QUIET libusb-1.0>=1.0.24)
+    else()
+        find_package(LibUSB)
+    endif()
+
+    if (LIBUSB_FOUND)
+        add_library(usb INTERFACE)
+        target_include_directories(usb INTERFACE "${LIBUSB_INCLUDE_DIRS}")
+        target_link_libraries(usb INTERFACE "${LIBUSB_LIBRARIES}")
+    else()
+        message(WARNING "libusb not found, falling back to externals")
+        set(YUZU_USE_BUNDLED_LIBUSB ON)
+    endif()
 endif()

 # List of all FFmpeg components required
@@ -463,7 +544,15 @@ if (YUZU_USE_BUNDLED_FFMPEG)

        # FFmpeg has source that requires one of nasm or yasm to assemble it.
        # REQUIRED throws an error if not found here during configuration rather than during compilation.
-        find_program(ASSEMBLER NAMES nasm yasm REQUIRED)
+        find_program(ASSEMBLER NAMES nasm yasm)
+        if ("${ASSEMBLER}" STREQUAL "ASSEMBLER-NOTFOUND")
+            message(FATAL_ERROR "One of either `nasm` or `yasm` not found but is required.")
+        endif()
+
+        find_program(AUTOCONF autoconf)
+        if ("${AUTOCONF}" STREQUAL "AUTOCONF-NOTFOUND")
+            message(FATAL_ERROR "Required program `autoconf` not found.")
+        endif()

        set(FFmpeg_PREFIX ${PROJECT_SOURCE_DIR}/externals/ffmpeg)
        set(FFmpeg_BUILD_DIR ${PROJECT_BINARY_DIR}/externals/ffmpeg)
--- a/README.md
+++ b/README.md
@@ -1,43 +1,80 @@
-yuzu emulator
-=============
-[![Travis CI Build Status](https://travis-ci.com/yuzu-emu/yuzu.svg?branch=master)](https://travis-ci.com/yuzu-emu/yuzu)
-[![Azure Mainline CI Build Status](https://dev.azure.com/yuzu-emu/yuzu/_apis/build/status/yuzu%20mainline?branchName=master)](https://dev.azure.com/yuzu-emu/yuzu/)
-[![Discord](https://img.shields.io/discord/398318088170242053?color=%237289DA&label=yuzu&logo=discord&logoColor=white)](https://discord.com/invite/u77vRWY)
+<h1 align="center">
+  <br>
+  <a href="https://yuzu-emu.org/"><img src="https://raw.githubusercontent.com/yuzu-emu/yuzu-assets/master/icons/icon.png" alt="yuzu" width="200"></a>
+  <br>
+  <b>yuzu</b>
+  <br>
+</h1>

-yuzu is an experimental open-source emulator for the Nintendo Switch from the creators of [Citra](https://citra-emu.org/).
+<h4 align="center"><b>yuzu</b> is the world's most popular, open-source, Nintendo Switch emulator — started by the creators of <a href="https://citra-emu.org" target="_blank">Citra</a>.
+<br>
+It is written in C++ with portability in mind, and we actively maintain builds for Windows and Linux.
+</h4>

-It is written in C++ with portability in mind, with builds actively maintained for Windows and Linux. The emulator is capable of running several commercial games.
+<p align="center">
+    <a href="https://dev.azure.com/yuzu-emu/yuzu/">
+        <img src="https://dev.azure.com/yuzu-emu/yuzu/_apis/build/status/yuzu%20mainline?branchName=master"
+            alt="Azure Mainline CI Build Status">
+    </a>
+    <a href="https://discord.com/invite/u77vRWY">
+        <img src="https://img.shields.io/discord/398318088170242053?color=%237289DA&label=yuzu&logo=discord&logoColor=white"
+            alt="Discord">
+    </a>
+</p>

-yuzu only emulates a subset of Switch hardware and therefore most commercial games **do not** run at full speed or are not fully functional.
+<p align="center">
+  <a href="#compatibility">Compatibility</a> |
+  <a href="#development">Development</a> |
+  <a href="#building">Building</a> |
+  <a href="#download">Download</a> |
+  <a href="#support">Support</a> |
+  <a href="#license">License</a>
+</p>

-Do you want to check which games are compatible and which ones are not? Please visit our [Compatibility page](https://yuzu-emu.org/game/)!
+## Compatibility

-yuzu is licensed under the GPLv2 (or any later version). Refer to the license.txt file included.
+The emulator is capable of running most commercial games at full speed, provided you meet the [necessary hardware requirements](https://yuzu-emu.org/help/quickstart/#hardware-requirements).

-Check out our [website](https://yuzu-emu.org/)!
+For a full list of games yuzu support, please visit our [Compatibility page](https://yuzu-emu.org/game/) 

-For development discussion, please join us on [Discord](https://discord.com/invite/u77vRWY).
+Check out our [website](https://yuzu-emu.org/) for the latest news on exciting features, monthly progress reports, and more!

-### Development
+## Development

-Most of the development happens on GitHub. It's also where [our central repository](https://github.com/yuzu-emu/yuzu) is hosted.
+Most of the development happens on GitHub. It's also where [our central repository](https://github.com/yuzu-emu/yuzu) is hosted. For development discussion, please join us on [Discord](https://discord.com/invite/u77vRWY).

-If you want to contribute please take a look at the [Contributor's Guide](https://github.com/yuzu-emu/yuzu/wiki/Contributing) and [Developer Information](https://github.com/yuzu-emu/yuzu/wiki/Developer-Information). You should also contact any of the developers on Discord in order to know about the current state of the emulator.
+If you want to contribute, please take a look at the [Contributor's Guide](https://github.com/yuzu-emu/yuzu/wiki/Contributing) and [Developer Information](https://github.com/yuzu-emu/yuzu/wiki/Developer-Information). 
+You can also contact any of the developers on Discord in order to know about the current state of the emulator.

-If you want to contribute to the user interface translation, please check out the [yuzu project on transifex](https://www.transifex.com/yuzu-emulator/yuzu). We centralize translation work there, and periodically upstream translations.
+If you want to contribute to the user interface translation project, please check out the [yuzu project on transifex](https://www.transifex.com/yuzu-emulator/yuzu). We centralize translation work there, and periodically upstream translations.

-### Building
+## Building

 * __Windows__: [Windows Build](https://github.com/yuzu-emu/yuzu/wiki/Building-For-Windows)
 * __Linux__: [Linux Build](https://github.com/yuzu-emu/yuzu/wiki/Building-For-Linux)

+## Download

-### Support
-We happily accept monetary donations, or donated games and hardware. Please see our [donations page](https://yuzu-emu.org/donate/) for more information on how you can contribute to yuzu. Any donations received will go towards things like:
+You can download the latest releases automatically via the installer on our [downloads](https://yuzu-emu.org/downloads/) page.
+
+
+## Support
+
+If you enjoy the project and want to support us financially, check out our Patreon!
+
+<a href="https://www.patreon.com/yuzuteam">
+    <img src="https://c5.patreon.com/external/logo/become_a_patron_button@2x.png" width="160">
+</a>
+
+Any donations received will go towards things like:
 * Switch consoles to explore and reverse-engineer the hardware
 * Switch games for testing, reverse-engineering, and implementing new features
 * Web hosting and infrastructure setup
 * Software licenses (e.g. Visual Studio, IDA Pro, etc.)
 * Additional hardware (e.g. GPUs as-needed to improve rendering support, other peripherals to add support for, etc.)

-We also more than gladly accept used Switch consoles, preferably ones with firmware 3.0.0 or lower! If you would like to give yours away, don't hesitate to join our [Discord](https://discord.gg/VXqngT3) and talk to bunnei. You may also contact: donations@yuzu-emu.org.
+If you wish to support us a different way, please join our [Discord](https://discord.gg/u77vRWY) and talk to bunnei. You may also contact: donations@yuzu-emu.org.
+
+## License
+
+yuzu is licensed under the GPLv2 (or any later version). Refer to the [license.txt](https://github.com/yuzu-emu/yuzu/blob/master/license.txt) file.
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -45,13 +45,18 @@ target_include_directories(microprofile INTERFACE ./microprofile)
 add_library(unicorn-headers INTERFACE)
 target_include_directories(unicorn-headers INTERFACE ./unicorn/include)

+# libusb
+if (NOT LIBUSB_FOUND OR YUZU_USE_BUNDLED_LIBUSB)
+    add_subdirectory(libusb)
+endif()
+
 # SDL2
 if (NOT SDL2_FOUND AND ENABLE_SDL2)
    if (NOT WIN32)
-        # Yuzu itself needs: Events Joystick Haptic Sensor Timers
+        # Yuzu itself needs: Events Joystick Haptic Sensor Timers Audio
        # Yuzu-cmd also needs: Video (depends on Loadso/Dlopen)
        set(SDL_UNUSED_SUBSYSTEMS
-            Atomic Audio Render Power Threads
+            Atomic Render Power Threads
            File CPUinfo Filesystem Locale)
        foreach(_SUB ${SDL_UNUSED_SUBSYSTEMS})
          string(TOUPPER ${_SUB} _OPT)
@@ -110,7 +115,7 @@ if (ENABLE_WEB_SERVICE)

    # httplib
    add_library(httplib INTERFACE)
-    target_include_directories(httplib INTERFACE ./httplib)
+    target_include_directories(httplib INTERFACE ./cpp-httplib)
    target_compile_definitions(httplib INTERFACE -DCPPHTTPLIB_OPENSSL_SUPPORT)
    target_link_libraries(httplib INTERFACE ${OPENSSL_LIBRARIES})
    if (WIN32)
--- a/externals/SDL
+++ b/externals/SDL
--- a/externals/cpp-httplib
+++ b/externals/cpp-httplib
--- a/externals/discord-rpc
+++ b/externals/discord-rpc
--- a/externals/dynarmic
+++ b/externals/dynarmic
--- a/externals/httplib/README.md
+++ b/externals/httplib/README.md
@@ -1,15 +0,0 @@
-From https://github.com/yhirose/cpp-httplib/tree/ff5677ad197947177c158fe857caff4f0e242045 with https://github.com/yhirose/cpp-httplib/pull/701
-
-MIT License
-
-===
-
-cpp-httplib
-
-A C++11 header-only HTTP library.
-
-It's extremely easy to setup. Just include httplib.h file in your code!
-
-Inspired by Sinatra and express.
-
-© 2017 Yuji Hirose
--- a/externals/httplib/httplib.h
+++ b/externals/httplib/httplib.h
--- a/externals/libusb/CMakeLists.txt
+++ b/externals/libusb/CMakeLists.txt
@@ -1,10 +1,24 @@
-if (MINGW)
-    # The MinGW toolchain for some reason doesn't work with this CMakeLists file after updating to
-    # 1.0.24, so we do it the old-fashioned way for now. We may want to move native Linux toolchains
-    # to here, too (TODO lat9nq?).
+if (MINGW OR (${CMAKE_SYSTEM_NAME} MATCHES "Linux") OR APPLE)
+    set(LIBUSB_FOUND ON CACHE BOOL "libusb is present" FORCE)
+    set(LIBUSB_VERSION "1.0.24" CACHE STRING "libusb version string" FORCE)
+
+    # GNU toolchains for some reason doesn't work with the later half of this CMakeLists after
+    # updating to 1.0.24, so we do it the old-fashioned way for now.
+
+    # Require autoconf and libtoolize here, rather than crash during compilation
+    find_program(AUTOCONF autoconf)
+    if ("${AUTOCONF}" STREQUAL "AUTOCONF-NOTFOUND")
+        message(FATAL_ERROR "Required program `autoconf` not found.")
+    endif()
+
+    find_program(LIBTOOLIZE libtoolize)
+    if ("${LIBTOOLIZE}" STREQUAL "LIBTOOLIZE-NOTFOUND")
+        message(FATAL_ERROR "Required program `libtoolize` not found.")
+    endif()

    set(LIBUSB_PREFIX "${CMAKE_CURRENT_BINARY_DIR}/libusb")
    set(LIBUSB_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/libusb")
+
    # Workarounds for MSYS/MinGW
    if (MSYS)
        # CMake on Windows passes `C:/`, but we need `/C/` or `/c/` to use `configure`
@@ -19,36 +33,42 @@ if (MINGW)

    set(LIBUSB_CONFIGURE "${LIBUSB_SRC_DIR}/configure")
    set(LIBUSB_MAKEFILE "${LIBUSB_PREFIX}/Makefile")
-    set(LIBUSB_LIBRARY "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.dll.a")
-    set(LIBUSB_SHARED_LIBRARY "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.dll")
-    set(LIBUSB_SHARED_LIBRARY_DEST "${CMAKE_BINARY_DIR}/bin/libusb-1.0.dll")

-    # Causes "externals/libusb/libusb/libusb/os/windows_winusb.c:1427:2: error: conversion to non-scalar type requested", so cannot statically link it for now.
-    # set(LIBUSB_CFLAGS "-DGUID_DEVINTERFACE_USB_DEVICE=\\(GUID\\){0xA5DCBF10,0x6530,0x11D2,{0x90,0x1F,0x00,0xC0,0x4F,0xB9,0x51,0xED}}")
+    if (MINGW)
+        set(LIBUSB_LIBRARIES "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.dll.a" CACHE PATH "libusb library path" FORCE)
+        set(LIBUSB_SHARED_LIBRARY "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.dll")
+        set(LIBUSB_SHARED_LIBRARY_DEST "${CMAKE_BINARY_DIR}/bin/libusb-1.0.dll")
+
+        set(LIBUSB_CONFIGURE_ARGS --host=x86_64-w64-mingw32 --build=x86_64-windows)
+    else()
+        set(LIBUSB_LIBRARIES "${LIBUSB_PREFIX}/libusb/.libs/libusb-1.0.a" CACHE PATH "libusb library path" FORCE)
+    endif()
+
+    set(LIBUSB_INCLUDE_DIRS "${LIBUSB_SRC_DIR}/libusb" CACHE PATH "libusb headers path" FORCE)
+
+    # MINGW: causes "externals/libusb/libusb/libusb/os/windows_winusb.c:1427:2: error: conversion to non-scalar type requested", so cannot statically link it for now.
+    if (NOT MINGW)
+        set(LIBUSB_CFLAGS "-DGUID_DEVINTERFACE_USB_DEVICE=\\(GUID\\){0xA5DCBF10,0x6530,0x11D2,{0x90,0x1F,0x00,0xC0,0x4F,0xB9,0x51,0xED}}")
+    endif()

    make_directory("${LIBUSB_PREFIX}")

    add_custom_command(
        OUTPUT
-            "${LIBUSB_LIBRARY}"
+            "${LIBUSB_LIBRARIES}"
        COMMAND
            make
        WORKING_DIRECTORY
            "${LIBUSB_PREFIX}"
    )

-    # We may use this path for other GNU toolchains, so put all of the MinGW-specific stuff here
-    if (MINGW)
-        set(LIBUSB_CONFIGURE_ARGS --host=x86_64-w64-mingw32 --build=x86_64-windows)
-    endif()
-
    add_custom_command(
        OUTPUT
            "${LIBUSB_MAKEFILE}"
        COMMAND
-            # /bin/env
-            #     CFLAGS="${LIBUSB_CFLAGS}"
-            /bin/sh "${LIBUSB_CONFIGURE}"
+            env
+                CFLAGS="${LIBUSB_CFLAGS}"
+            sh "${LIBUSB_CONFIGURE}"
                ${LIBUSB_CONFIGURE_ARGS}
                --srcdir="${LIBUSB_SRC_DIR}"
        WORKING_DIRECTORY
@@ -59,7 +79,7 @@ if (MINGW)
        OUTPUT
            "${LIBUSB_CONFIGURE}"
        COMMAND
-            /bin/sh "${LIBUSB_SRC_DIR}/bootstrap.sh"
+            sh "${LIBUSB_SRC_DIR}/bootstrap.sh"
        WORKING_DIRECTORY
            "${LIBUSB_SRC_DIR}"
    )
@@ -68,19 +88,30 @@ if (MINGW)
        OUTPUT
            "${LIBUSB_SHARED_LIBRARY_DEST}"
        COMMAND
-            /bin/cp "${LIBUSB_SHARED_LIBRARY}" "${LIBUSB_SHARED_LIBRARY_DEST}"
+            cp "${LIBUSB_SHARED_LIBRARY}" "${LIBUSB_SHARED_LIBRARY_DEST}"
    )

-    add_custom_target(usb-bootstrap ALL DEPENDS "${LIBUSB_CONFIGURE}")
-    add_custom_target(usb-configure ALL DEPENDS "${LIBUSB_MAKEFILE}" usb-bootstrap)
-    add_custom_target(usb-build ALL DEPENDS "${LIBUSB_LIBRARY}" usb-configure)
+    add_custom_target(usb-bootstrap DEPENDS "${LIBUSB_CONFIGURE}")
+    add_custom_target(usb-configure DEPENDS "${LIBUSB_MAKEFILE}" usb-bootstrap)
+    add_custom_target(usb-build ALL DEPENDS "${LIBUSB_LIBRARIES}" usb-configure)
    # Workaround since static linking didn't work out -- We need to copy the DLL to the bin directory
    add_custom_target(usb-copy ALL DEPENDS "${LIBUSB_SHARED_LIBRARY_DEST}" usb-build)

-    # Make `usb` alias to LIBUSB_LIBRARY
    add_library(usb INTERFACE)
-    target_link_libraries(usb INTERFACE "${LIBUSB_LIBRARY}")
-else() # MINGW
+    add_dependencies(usb usb-copy)
+    target_link_libraries(usb INTERFACE "${LIBUSB_LIBRARIES}")
+    target_include_directories(usb INTERFACE "${LIBUSB_INCLUDE_DIRS}")
+
+    if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+        Include(FindPkgConfig)
+        pkg_check_modules(LIBUDEV REQUIRED libudev)
+
+        if (LIBUDEV_FOUND)
+            target_include_directories(usb INTERFACE "${LIBUDEV_INCLUDE_DIRS}")
+            target_link_libraries(usb INTERFACE "${LIBUDEV_STATIC_LIBRARIES}")
+        endif()
+    endif()
+else() # MINGW OR (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
    # Ensure libusb compiles with UTF-8 encoding on MSVC
    if(MSVC)
        add_compile_options(/utf-8)
@@ -236,4 +267,4 @@ else() # MINGW


    configure_file(config.h.in config.h)
-endif() # MINGW
+endif() # MINGW OR (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -49,6 +49,7 @@ if (MSVC)
        /W3
        /we4062 # enumerator 'identifier' in a switch of enum 'enumeration' is not handled
        /we4101 # 'identifier': unreferenced local variable
+        /we4189 # 'identifier': local variable is initialized but not referenced
        /we4265 # 'class': class has virtual functions, but destructor is not virtual
        /we4388 # signed/unsigned mismatch
        /we4547 # 'operator' : operator before comma has no effect; expected operator with side-effect
--- a/src/audio_core/CMakeLists.txt
+++ b/src/audio_core/CMakeLists.txt
@@ -42,6 +42,7 @@ add_library(audio_core STATIC
    voice_context.h

    $<$<BOOL:${ENABLE_CUBEB}>:cubeb_sink.cpp cubeb_sink.h>
+    $<$<BOOL:${ENABLE_SDL2}>:sdl2_sink.cpp sdl2_sink.h>
 )

 create_target_directory_groups(audio_core)
@@ -71,3 +72,7 @@ if(ENABLE_CUBEB)
    target_link_libraries(audio_core PRIVATE cubeb)
    target_compile_definitions(audio_core PRIVATE -DHAVE_CUBEB=1)
 endif()
+if(ENABLE_SDL2)
+    target_link_libraries(audio_core PRIVATE SDL2)
+    target_compile_definitions(audio_core PRIVATE HAVE_SDL2)
+endif()
--- a/src/audio_core/audio_renderer.cpp
+++ b/src/audio_core/audio_renderer.cpp
@@ -197,7 +197,7 @@ ResultCode AudioRenderer::UpdateAudioRenderer(const std::vector<u8>& input_param

    ReleaseAndQueueBuffers();

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 void AudioRenderer::QueueMixedBuffer(Buffer::Tag tag) {
--- a/src/audio_core/common.h
+++ b/src/audio_core/common.h
@@ -15,7 +15,7 @@ constexpr ResultCode ERR_INVALID_PARAMETERS{ErrorModule::Audio, 41};
 constexpr ResultCode ERR_SPLITTER_SORT_FAILED{ErrorModule::Audio, 43};
 } // namespace Audren

-constexpr u32_le CURRENT_PROCESS_REVISION = Common::MakeMagic('R', 'E', 'V', '8');
+constexpr u32_le CURRENT_PROCESS_REVISION = Common::MakeMagic('R', 'E', 'V', '9');
 constexpr std::size_t MAX_MIX_BUFFERS = 24;
 constexpr std::size_t MAX_BIQUAD_FILTERS = 2;
 constexpr std::size_t MAX_CHANNEL_COUNT = 6;
--- a/src/audio_core/info_updater.cpp
+++ b/src/audio_core/info_updater.cpp
@@ -407,7 +407,7 @@ ResultCode InfoUpdater::UpdateMixes(MixContext& mix_context, std::size_t mix_buf

    // TODO(ogniK): Sort when splitter is suppoorted

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 bool InfoUpdater::UpdateSinks(SinkContext& sink_context) {
--- a/src/audio_core/sdl2_sink.cpp
+++ b/src/audio_core/sdl2_sink.cpp
@@ -0,0 +1,163 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include <atomic>
+#include <cstring>
+#include "audio_core/sdl2_sink.h"
+#include "audio_core/stream.h"
+#include "audio_core/time_stretch.h"
+#include "common/assert.h"
+#include "common/logging/log.h"
+//#include "common/settings.h"
+
+// Ignore -Wimplicit-fallthrough due to https://github.com/libsdl-org/SDL/issues/4307
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wimplicit-fallthrough"
+#endif
+#include <SDL.h>
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
+
+namespace AudioCore {
+
+class SDLSinkStream final : public SinkStream {
+public:
+    SDLSinkStream(u32 sample_rate, u32 num_channels_, const std::string& output_device)
+        : num_channels{std::min(num_channels_, 6u)}, time_stretch{sample_rate, num_channels} {
+
+        SDL_AudioSpec spec;
+        spec.freq = sample_rate;
+        spec.channels = static_cast<u8>(num_channels);
+        spec.format = AUDIO_S16SYS;
+        spec.samples = 4096;
+        spec.callback = nullptr;
+
+        SDL_AudioSpec obtained;
+        if (output_device.empty()) {
+            dev = SDL_OpenAudioDevice(nullptr, 0, &spec, &obtained, 0);
+        } else {
+            dev = SDL_OpenAudioDevice(output_device.c_str(), 0, &spec, &obtained, 0);
+        }
+
+        if (dev == 0) {
+            LOG_CRITICAL(Audio_Sink, "Error opening sdl audio device: {}", SDL_GetError());
+            return;
+        }
+
+        SDL_PauseAudioDevice(dev, 0);
+    }
+
+    ~SDLSinkStream() override {
+        if (dev == 0) {
+            return;
+        }
+
+        SDL_CloseAudioDevice(dev);
+    }
+
+    void EnqueueSamples(u32 source_num_channels, const std::vector<s16>& samples) override {
+        if (source_num_channels > num_channels) {
+            // Downsample 6 channels to 2
+            ASSERT_MSG(source_num_channels == 6, "Channel count must be 6");
+
+            std::vector<s16> buf;
+            buf.reserve(samples.size() * num_channels / source_num_channels);
+            for (std::size_t i = 0; i < samples.size(); i += source_num_channels) {
+                // Downmixing implementation taken from the ATSC standard
+                const s16 left{samples[i + 0]};
+                const s16 right{samples[i + 1]};
+                const s16 center{samples[i + 2]};
+                const s16 surround_left{samples[i + 4]};
+                const s16 surround_right{samples[i + 5]};
+                // Not used in the ATSC reference implementation
+                [[maybe_unused]] const s16 low_frequency_effects{samples[i + 3]};
+
+                constexpr s32 clev{707}; // center mixing level coefficient
+                constexpr s32 slev{707}; // surround mixing level coefficient
+
+                buf.push_back(static_cast<s16>(left + (clev * center / 1000) +
+                                               (slev * surround_left / 1000)));
+                buf.push_back(static_cast<s16>(right + (clev * center / 1000) +
+                                               (slev * surround_right / 1000)));
+            }
+            int ret = SDL_QueueAudio(dev, static_cast<const void*>(buf.data()),
+                                     static_cast<u32>(buf.size() * sizeof(s16)));
+            if (ret < 0)
+                LOG_WARNING(Audio_Sink, "Could not queue audio buffer: {}", SDL_GetError());
+            return;
+        }
+
+        int ret = SDL_QueueAudio(dev, static_cast<const void*>(samples.data()),
+                                 static_cast<u32>(samples.size() * sizeof(s16)));
+        if (ret < 0)
+            LOG_WARNING(Audio_Sink, "Could not queue audio buffer: {}", SDL_GetError());
+    }
+
+    std::size_t SamplesInQueue(u32 channel_count) const override {
+        if (dev == 0)
+            return 0;
+
+        return SDL_GetQueuedAudioSize(dev) / (channel_count * sizeof(s16));
+    }
+
+    void Flush() override {
+        should_flush = true;
+    }
+
+    u32 GetNumChannels() const {
+        return num_channels;
+    }
+
+private:
+    SDL_AudioDeviceID dev = 0;
+    u32 num_channels{};
+    std::atomic<bool> should_flush{};
+    TimeStretcher time_stretch;
+};
+
+SDLSink::SDLSink(std::string_view target_device_name) {
+    if (!SDL_WasInit(SDL_INIT_AUDIO)) {
+        if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
+            LOG_CRITICAL(Audio_Sink, "SDL_InitSubSystem audio failed: {}", SDL_GetError());
+            return;
+        }
+    }
+
+    if (target_device_name != auto_device_name && !target_device_name.empty()) {
+        output_device = target_device_name;
+    } else {
+        output_device.clear();
+    }
+}
+
+SDLSink::~SDLSink() = default;
+
+SinkStream& SDLSink::AcquireSinkStream(u32 sample_rate, u32 num_channels, const std::string&) {
+    sink_streams.push_back(
+        std::make_unique<SDLSinkStream>(sample_rate, num_channels, output_device));
+    return *sink_streams.back();
+}
+
+std::vector<std::string> ListSDLSinkDevices() {
+    std::vector<std::string> device_list;
+
+    if (!SDL_WasInit(SDL_INIT_AUDIO)) {
+        if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
+            LOG_CRITICAL(Audio_Sink, "SDL_InitSubSystem audio failed: {}", SDL_GetError());
+            return {};
+        }
+    }
+
+    const int device_count = SDL_GetNumAudioDevices(0);
+    for (int i = 0; i < device_count; ++i) {
+        device_list.emplace_back(SDL_GetAudioDeviceName(i, 0));
+    }
+
+    return device_list;
+}
+
+} // namespace AudioCore
--- a/src/audio_core/sdl2_sink.h
+++ b/src/audio_core/sdl2_sink.h
@@ -0,0 +1,29 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include "audio_core/sink.h"
+
+namespace AudioCore {
+
+class SDLSink final : public Sink {
+public:
+    explicit SDLSink(std::string_view device_id);
+    ~SDLSink() override;
+
+    SinkStream& AcquireSinkStream(u32 sample_rate, u32 num_channels,
+                                  const std::string& name) override;
+
+private:
+    std::string output_device;
+    std::vector<SinkStreamPtr> sink_streams;
+};
+
+std::vector<std::string> ListSDLSinkDevices();
+
+} // namespace AudioCore
--- a/src/audio_core/sink_context.h
+++ b/src/audio_core/sink_context.h
@@ -4,6 +4,8 @@

 #pragma once

+#include <array>
+#include <vector>
 #include "audio_core/common.h"
 #include "common/common_funcs.h"
 #include "common/common_types.h"
--- a/src/audio_core/sink_details.cpp
+++ b/src/audio_core/sink_details.cpp
@@ -11,6 +11,9 @@
 #ifdef HAVE_CUBEB
 #include "audio_core/cubeb_sink.h"
 #endif
+#ifdef HAVE_SDL2
+#include "audio_core/sdl2_sink.h"
+#endif
 #include "common/logging/log.h"

 namespace AudioCore {
@@ -35,6 +38,13 @@ constexpr SinkDetails sink_details[] = {
                    return std::make_unique<CubebSink>(device_id);
                },
                &ListCubebSinkDevices},
+#endif
+#ifdef HAVE_SDL2
+    SinkDetails{"sdl2",
+                [](std::string_view device_id) -> std::unique_ptr<Sink> {
+                    return std::make_unique<SDLSink>(device_id);
+                },
+                &ListSDLSinkDevices},
 #endif
    SinkDetails{"null",
                [](std::string_view device_id) -> std::unique_ptr<Sink> {
--- a/src/audio_core/stream.cpp
+++ b/src/audio_core/stream.cpp
@@ -107,9 +107,12 @@ void Stream::PlayNextBuffer(std::chrono::nanoseconds ns_late) {
    active_buffer = queued_buffers.front();
    queued_buffers.pop();

-    VolumeAdjustSamples(active_buffer->GetSamples(), game_volume);
+    auto& samples = active_buffer->GetSamples();

-    sink_stream.EnqueueSamples(GetNumChannels(), active_buffer->GetSamples());
+    VolumeAdjustSamples(samples, game_volume);
+
+    sink_stream.EnqueueSamples(GetNumChannels(), samples);
+    played_samples += samples.size();

    const auto buffer_release_ns = GetBufferReleaseNS(*active_buffer);

--- a/src/audio_core/stream.h
+++ b/src/audio_core/stream.h
@@ -89,6 +89,11 @@ public:
        return sample_rate;
    }

+    /// Gets the number of samples played so far
+    [[nodiscard]] u64 GetPlayedSampleCount() const {
+        return played_samples;
+    }
+
    /// Gets the number of channels
    [[nodiscard]] u32 GetNumChannels() const;

@@ -106,6 +111,7 @@ private:
    [[nodiscard]] std::chrono::nanoseconds GetBufferReleaseNS(const Buffer& buffer) const;

    u32 sample_rate;                  ///< Sample rate of the stream
+    u64 played_samples{};             ///< The current played sample count
    Format format;                    ///< Format of the stream
    float game_volume = 1.0f;         ///< The volume the game currently has set
    ReleaseCallback release_callback; ///< Buffer release callback for the stream
--- a/src/common/CMakeLists.txt
+++ b/src/common/CMakeLists.txt
@@ -21,14 +21,14 @@ find_package(Git QUIET)

 add_custom_command(OUTPUT scm_rev.cpp
    COMMAND ${CMAKE_COMMAND}
-      -DSRC_DIR="${CMAKE_SOURCE_DIR}"
-      -DBUILD_REPOSITORY="${BUILD_REPOSITORY}"
-      -DTITLE_BAR_FORMAT_IDLE="${TITLE_BAR_FORMAT_IDLE}"
-      -DTITLE_BAR_FORMAT_RUNNING="${TITLE_BAR_FORMAT_RUNNING}"
-      -DBUILD_TAG="${BUILD_TAG}"
-      -DBUILD_ID="${DISPLAY_VERSION}"
-      -DGIT_EXECUTABLE="${GIT_EXECUTABLE}"
-      -P "${CMAKE_SOURCE_DIR}/CMakeModules/GenerateSCMRev.cmake"
+      -DSRC_DIR=${CMAKE_SOURCE_DIR}
+      -DBUILD_REPOSITORY=${BUILD_REPOSITORY}
+      -DTITLE_BAR_FORMAT_IDLE=${TITLE_BAR_FORMAT_IDLE}
+      -DTITLE_BAR_FORMAT_RUNNING=${TITLE_BAR_FORMAT_RUNNING}
+      -DBUILD_TAG=${BUILD_TAG}
+      -DBUILD_ID=${DISPLAY_VERSION}
+      -DGIT_EXECUTABLE=${GIT_EXECUTABLE}
+      -P ${CMAKE_SOURCE_DIR}/CMakeModules/GenerateSCMRev.cmake
    DEPENDS
      # WARNING! It was too much work to try and make a common location for this list,
      # so if you need to change it, please update CMakeModules/GenerateSCMRev.cmake as well
@@ -92,6 +92,7 @@ add_custom_command(OUTPUT scm_rev.cpp
      "${CMAKE_CURRENT_SOURCE_DIR}/scm_rev.h"
      # technically we should regenerate if the git version changed, but its not worth the effort imo
      "${CMAKE_SOURCE_DIR}/CMakeModules/GenerateSCMRev.cmake"
+    VERBATIM
 )

 add_library(common STATIC
@@ -109,7 +110,6 @@ add_library(common STATIC
    cityhash.cpp
    cityhash.h
    common_funcs.h
-    common_sizes.h
    common_types.h
    concepts.h
    div_ceil.h
@@ -130,7 +130,10 @@ add_library(common STATIC
    hash.h
    hex_util.cpp
    hex_util.h
+    host_memory.cpp
+    host_memory.h
    intrusive_red_black_tree.h
+    literals.h
    logging/backend.cpp
    logging/backend.h
    logging/filter.cpp
@@ -138,6 +141,7 @@ add_library(common STATIC
    logging/log.h
    logging/text_formatter.cpp
    logging/text_formatter.h
+    logging/types.h
    lz4_compression.cpp
    lz4_compression.h
    math_util.h
--- a/src/common/common_funcs.h
+++ b/src/common/common_funcs.h
@@ -97,17 +97,6 @@ __declspec(dllimport) void __stdcall DebugBreak(void);
        return static_cast<T>(key) == 0;                                                           \
    }

-/// Evaluates a boolean expression, and returns a result unless that expression is true.
-#define R_UNLESS(expr, res)                                                                        \
-    {                                                                                              \
-        if (!(expr)) {                                                                             \
-            if (res.IsError()) {                                                                   \
-                LOG_ERROR(Kernel, "Failed with result: {}", res.raw);                              \
-            }                                                                                      \
-            return res;                                                                            \
-        }                                                                                          \
-    }
-
 #define YUZU_NON_COPYABLE(cls)                                                                     \
    cls(const cls&) = delete;                                                                      \
    cls& operator=(const cls&) = delete
@@ -116,20 +105,6 @@ __declspec(dllimport) void __stdcall DebugBreak(void);
    cls(cls&&) = delete;                                                                           \
    cls& operator=(cls&&) = delete

-#define R_SUCCEEDED(res) (res.IsSuccess())
-
-/// Evaluates an expression that returns a result, and returns the result if it would fail.
-#define R_TRY(res_expr)                                                                            \
-    {                                                                                              \
-        const auto _tmp_r_try_rc = (res_expr);                                                     \
-        if (_tmp_r_try_rc.IsError()) {                                                             \
-            return _tmp_r_try_rc;                                                                  \
-        }                                                                                          \
-    }
-
-/// Evaluates a boolean expression, and succeeds if that expression is true.
-#define R_SUCCEED_IF(expr) R_UNLESS(!(expr), RESULT_SUCCESS)
-
 namespace Common {

 [[nodiscard]] constexpr u32 MakeMagic(char a, char b, char c, char d) {
--- a/src/common/common_sizes.h
+++ b/src/common/common_sizes.h
@@ -1,43 +0,0 @@
-// Copyright 2021 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <limits>
-
-#include "common/common_types.h"
-
-namespace Common {
-
-enum : u64 {
-    Size_1_KB = 0x400ULL,
-    Size_64_KB = 64ULL * Size_1_KB,
-    Size_128_KB = 128ULL * Size_1_KB,
-    Size_1_MB = 0x100000ULL,
-    Size_2_MB = 2ULL * Size_1_MB,
-    Size_4_MB = 4ULL * Size_1_MB,
-    Size_5_MB = 5ULL * Size_1_MB,
-    Size_14_MB = 14ULL * Size_1_MB,
-    Size_32_MB = 32ULL * Size_1_MB,
-    Size_33_MB = 33ULL * Size_1_MB,
-    Size_128_MB = 128ULL * Size_1_MB,
-    Size_448_MB = 448ULL * Size_1_MB,
-    Size_507_MB = 507ULL * Size_1_MB,
-    Size_562_MB = 562ULL * Size_1_MB,
-    Size_1554_MB = 1554ULL * Size_1_MB,
-    Size_2048_MB = 2048ULL * Size_1_MB,
-    Size_2193_MB = 2193ULL * Size_1_MB,
-    Size_3285_MB = 3285ULL * Size_1_MB,
-    Size_4916_MB = 4916ULL * Size_1_MB,
-    Size_1_GB = 0x40000000ULL,
-    Size_2_GB = 2ULL * Size_1_GB,
-    Size_4_GB = 4ULL * Size_1_GB,
-    Size_6_GB = 6ULL * Size_1_GB,
-    Size_8_GB = 8ULL * Size_1_GB,
-    Size_64_GB = 64ULL * Size_1_GB,
-    Size_512_GB = 512ULL * Size_1_GB,
-    Size_Invalid = std::numeric_limits<u64>::max(),
-};
-
-} // namespace Common
--- a/src/common/detached_tasks.cpp
+++ b/src/common/detached_tasks.cpp
@@ -21,6 +21,8 @@ void DetachedTasks::WaitForAllTasks() {
 }

 DetachedTasks::~DetachedTasks() {
+    WaitForAllTasks();
+
    std::unique_lock lock{mutex};
    ASSERT(count == 0);
    instance = nullptr;
--- a/src/common/fs/file.cpp
+++ b/src/common/fs/file.cpp
@@ -172,7 +172,7 @@ std::string ReadStringFromFile(const std::filesystem::path& path, FileType type)

 size_t WriteStringToFile(const std::filesystem::path& path, FileType type,
                         std::string_view string) {
-    if (!IsFile(path)) {
+    if (Exists(path) && !IsFile(path)) {
        return 0;
    }

@@ -183,11 +183,7 @@ size_t WriteStringToFile(const std::filesystem::path& path, FileType type,

 size_t AppendStringToFile(const std::filesystem::path& path, FileType type,
                          std::string_view string) {
-    if (!Exists(path)) {
-        return WriteStringToFile(path, type, string);
-    }
-
-    if (!IsFile(path)) {
+    if (Exists(path) && !IsFile(path)) {
        return 0;
    }

@@ -309,7 +305,11 @@ bool IOFile::Flush() const {

    errno = 0;

-    const auto flush_result = std::fflush(file) == 0;
+#ifdef _WIN32
+    const auto flush_result = std::fflush(file) == 0 && _commit(fileno(file)) == 0;
+#else
+    const auto flush_result = std::fflush(file) == 0 && fsync(fileno(file)) == 0;
+#endif

    if (!flush_result) {
        const auto ec = std::error_code{errno, std::generic_category()};
--- a/src/common/fs/file.h
+++ b/src/common/fs/file.h
@@ -49,7 +49,7 @@ void OpenFileStream(FileStream& file_stream, const Path& path, std::ios_base::op

 /**
 * Reads an entire file at path and returns a string of the contents read from the file.
- * If the filesystem object at path is not a file, this function returns an empty string.
+ * If the filesystem object at path is not a regular file, this function returns an empty string.
 *
 * @param path Filesystem path
 * @param type File type
@@ -71,8 +71,9 @@ template <typename Path>

 /**
 * Writes a string to a file at path and returns the number of characters successfully written.
- * If an file already exists at path, its contents will be erased.
- * If the filesystem object at path is not a file, this function returns 0.
+ * If a file already exists at path, its contents will be erased.
+ * If a file does not exist at path, it creates and opens a new empty file for writing.
+ * If the filesystem object at path exists and is not a regular file, this function returns 0.
 *
 * @param path Filesystem path
 * @param type File type
@@ -95,8 +96,8 @@ template <typename Path>

 /**
 * Appends a string to a file at path and returns the number of characters successfully written.
- * If a file does not exist at path, WriteStringToFile is called instead.
- * If the filesystem object at path is not a file, this function returns 0.
+ * If a file does not exist at path, it creates and opens a new empty file for appending.
+ * If the filesystem object at path exists and is not a regular file, this function returns 0.
 *
 * @param path Filesystem path
 * @param type File type
@@ -395,11 +396,11 @@ public:
    [[nodiscard]] size_t WriteString(std::span<const char> string) const;

    /**
-     * Flushes any unwritten buffered data into the file.
+     * Attempts to flush any unwritten buffered data into the file and flush the file into the disk.
     *
     * @returns True if the flush was successful, false otherwise.
     */
-    [[nodiscard]] bool Flush() const;
+    bool Flush() const;

    /**
     * Resizes the file to a given size.
--- a/src/common/fs/fs.cpp
+++ b/src/common/fs/fs.cpp
@@ -135,8 +135,9 @@ std::shared_ptr<IOFile> FileOpen(const fs::path& path, FileAccessMode mode, File
        return nullptr;
    }

-    if (!IsFile(path)) {
-        LOG_ERROR(Common_Filesystem, "Filesystem object at path={} is not a file",
+    if (Exists(path) && !IsFile(path)) {
+        LOG_ERROR(Common_Filesystem,
+                  "Filesystem object at path={} exists and is not a regular file",
                  PathToUTF8String(path));
        return nullptr;
    }
@@ -321,7 +322,8 @@ bool RemoveDirContentsRecursively(const fs::path& path) {

    std::error_code ec;

-    for (const auto& entry : fs::recursive_directory_iterator(path, ec)) {
+    // TODO (Morph): Replace this with recursive_directory_iterator once it's fixed in MSVC.
+    for (const auto& entry : fs::directory_iterator(path, ec)) {
        if (ec) {
            LOG_ERROR(Common_Filesystem,
                      "Failed to completely enumerate the directory at path={}, ec_message={}",
@@ -337,6 +339,12 @@ bool RemoveDirContentsRecursively(const fs::path& path) {
                      PathToUTF8String(entry.path()), ec.message());
            break;
        }
+
+        // TODO (Morph): Remove this when MSVC fixes recursive_directory_iterator.
+        // recursive_directory_iterator throws an exception despite passing in a std::error_code.
+        if (entry.status().type() == fs::file_type::directory) {
+            return RemoveDirContentsRecursively(entry.path());
+        }
    }

    if (ec) {
@@ -475,7 +483,8 @@ void IterateDirEntriesRecursively(const std::filesystem::path& path,

    std::error_code ec;

-    for (const auto& entry : fs::recursive_directory_iterator(path, ec)) {
+    // TODO (Morph): Replace this with recursive_directory_iterator once it's fixed in MSVC.
+    for (const auto& entry : fs::directory_iterator(path, ec)) {
        if (ec) {
            break;
        }
@@ -495,6 +504,12 @@ void IterateDirEntriesRecursively(const std::filesystem::path& path,
                break;
            }
        }
+
+        // TODO (Morph): Remove this when MSVC fixes recursive_directory_iterator.
+        // recursive_directory_iterator throws an exception despite passing in a std::error_code.
+        if (entry.status().type() == fs::file_type::directory) {
+            IterateDirEntriesRecursively(entry.path(), callback, filter);
+        }
    }

    if (callback_error || ec) {
--- a/src/common/fs/fs.h
+++ b/src/common/fs/fs.h
@@ -48,18 +48,18 @@ template <typename Path>
 *
 * Failures occur when:
 * - Input path is not valid
- * - Filesystem object at path is not a file
+ * - Filesystem object at path is not a regular file
 * - Filesystem at path is read only
 *
 * @param path Filesystem path
 *
 * @returns True if file removal succeeds or file does not exist, false otherwise.
 */
-[[nodiscard]] bool RemoveFile(const std::filesystem::path& path);
+bool RemoveFile(const std::filesystem::path& path);

 #ifdef _WIN32
 template <typename Path>
-[[nodiscard]] bool RemoveFile(const Path& path) {
+bool RemoveFile(const Path& path) {
    if constexpr (IsChar<typename Path::value_type>) {
        return RemoveFile(ToU8String(path));
    } else {
@@ -74,7 +74,7 @@ template <typename Path>
 * Failures occur when:
 * - One or both input path(s) is not valid
 * - Filesystem object at old_path does not exist
- * - Filesystem object at old_path is not a file
+ * - Filesystem object at old_path is not a regular file
 * - Filesystem object at new_path exists
 * - Filesystem at either path is read only
 *
@@ -110,8 +110,8 @@ template <typename Path1, typename Path2>
 *
 * Failures occur when:
 * - Input path is not valid
- * - Filesystem object at path is not a file
- * - The file is not opened
+ * - Filesystem object at path exists and is not a regular file
+ * - The file is not open
 *
 * @param path Filesystem path
 * @param mode File access mode
@@ -251,11 +251,11 @@ template <typename Path>
 *
 * @returns True if directory removal succeeds or directory does not exist, false otherwise.
 */
-[[nodiscard]] bool RemoveDir(const std::filesystem::path& path);
+bool RemoveDir(const std::filesystem::path& path);

 #ifdef _WIN32
 template <typename Path>
-[[nodiscard]] bool RemoveDir(const Path& path) {
+bool RemoveDir(const Path& path) {
    if constexpr (IsChar<typename Path::value_type>) {
        return RemoveDir(ToU8String(path));
    } else {
@@ -276,11 +276,11 @@ template <typename Path>
 *
 * @returns True if the directory and all of its contents are removed successfully, false otherwise.
 */
-[[nodiscard]] bool RemoveDirRecursively(const std::filesystem::path& path);
+bool RemoveDirRecursively(const std::filesystem::path& path);

 #ifdef _WIN32
 template <typename Path>
-[[nodiscard]] bool RemoveDirRecursively(const Path& path) {
+bool RemoveDirRecursively(const Path& path) {
    if constexpr (IsChar<typename Path::value_type>) {
        return RemoveDirRecursively(ToU8String(path));
    } else {
@@ -301,11 +301,11 @@ template <typename Path>
 *
 * @returns True if all of the directory's contents are removed successfully, false otherwise.
 */
-[[nodiscard]] bool RemoveDirContentsRecursively(const std::filesystem::path& path);
+bool RemoveDirContentsRecursively(const std::filesystem::path& path);

 #ifdef _WIN32
 template <typename Path>
-[[nodiscard]] bool RemoveDirContentsRecursively(const Path& path) {
+bool RemoveDirContentsRecursively(const Path& path) {
    if constexpr (IsChar<typename Path::value_type>) {
        return RemoveDirContentsRecursively(ToU8String(path));
    } else {
@@ -435,11 +435,13 @@ template <typename Path>
 #endif

 /**
- * Returns whether a filesystem object at path is a file.
+ * Returns whether a filesystem object at path is a regular file.
+ * A regular file is a file that stores text or binary data.
+ * It is not a directory, symlink, FIFO, socket, block device, or character device.
 *
 * @param path Filesystem path
 *
- * @returns True if a filesystem object at path is a file, false otherwise.
+ * @returns True if a filesystem object at path is a regular file, false otherwise.
 */
 [[nodiscard]] bool IsFile(const std::filesystem::path& path);

--- a/src/common/fs/path_util.h
+++ b/src/common/fs/path_util.h
@@ -209,7 +209,7 @@ void SetYuzuPath(YuzuPath yuzu_path, const std::filesystem::path& new_path);

 #ifdef _WIN32
 template <typename Path>
-[[nodiscard]] void SetYuzuPath(YuzuPath yuzu_path, const Path& new_path) {
+void SetYuzuPath(YuzuPath yuzu_path, const Path& new_path) {
    if constexpr (IsChar<typename Path::value_type>) {
        SetYuzuPath(yuzu_path, ToU8String(new_path));
    } else {
--- a/src/common/hex_util.h
+++ b/src/common/hex_util.h
@@ -53,8 +53,9 @@ template <typename ContiguousContainer>
    std::string out;
    out.reserve(std::size(data) * pad_width);

+    const auto format_str = fmt::runtime(upper ? "{:02X}" : "{:02x}");
    for (const u8 c : data) {
-        out += fmt::format(upper ? "{:02X}" : "{:02x}", c);
+        out += fmt::format(format_str, c);
    }

    return out;
--- a/src/common/host_memory.cpp
+++ b/src/common/host_memory.cpp
@@ -0,0 +1,538 @@
+#ifdef _WIN32
+
+#include <iterator>
+#include <unordered_map>
+#include <boost/icl/separate_interval_set.hpp>
+#include <windows.h>
+#include "common/dynamic_library.h"
+
+#elif defined(__linux__) // ^^^ Windows ^^^ vvv Linux vvv
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#endif // ^^^ Linux ^^^
+
+#include <mutex>
+
+#include "common/alignment.h"
+#include "common/assert.h"
+#include "common/host_memory.h"
+#include "common/logging/log.h"
+#include "common/scope_exit.h"
+
+namespace Common {
+
+constexpr size_t PageAlignment = 0x1000;
+constexpr size_t HugePageSize = 0x200000;
+
+#ifdef _WIN32
+
+// Manually imported for MinGW compatibility
+#ifndef MEM_RESERVE_PLACEHOLDER
+#define MEM_RESERVE_PLACEHOLDER 0x00040000
+#endif
+#ifndef MEM_REPLACE_PLACEHOLDER
+#define MEM_REPLACE_PLACEHOLDER 0x00004000
+#endif
+#ifndef MEM_COALESCE_PLACEHOLDERS
+#define MEM_COALESCE_PLACEHOLDERS 0x00000001
+#endif
+#ifndef MEM_PRESERVE_PLACEHOLDER
+#define MEM_PRESERVE_PLACEHOLDER 0x00000002
+#endif
+
+using PFN_CreateFileMapping2 = _Ret_maybenull_ HANDLE(WINAPI*)(
+    _In_ HANDLE File, _In_opt_ SECURITY_ATTRIBUTES* SecurityAttributes, _In_ ULONG DesiredAccess,
+    _In_ ULONG PageProtection, _In_ ULONG AllocationAttributes, _In_ ULONG64 MaximumSize,
+    _In_opt_ PCWSTR Name,
+    _Inout_updates_opt_(ParameterCount) MEM_EXTENDED_PARAMETER* ExtendedParameters,
+    _In_ ULONG ParameterCount);
+
+using PFN_VirtualAlloc2 = _Ret_maybenull_ PVOID(WINAPI*)(
+    _In_opt_ HANDLE Process, _In_opt_ PVOID BaseAddress, _In_ SIZE_T Size,
+    _In_ ULONG AllocationType, _In_ ULONG PageProtection,
+    _Inout_updates_opt_(ParameterCount) MEM_EXTENDED_PARAMETER* ExtendedParameters,
+    _In_ ULONG ParameterCount);
+
+using PFN_MapViewOfFile3 = _Ret_maybenull_ PVOID(WINAPI*)(
+    _In_ HANDLE FileMapping, _In_opt_ HANDLE Process, _In_opt_ PVOID BaseAddress,
+    _In_ ULONG64 Offset, _In_ SIZE_T ViewSize, _In_ ULONG AllocationType, _In_ ULONG PageProtection,
+    _Inout_updates_opt_(ParameterCount) MEM_EXTENDED_PARAMETER* ExtendedParameters,
+    _In_ ULONG ParameterCount);
+
+using PFN_UnmapViewOfFile2 = BOOL(WINAPI*)(_In_ HANDLE Process, _In_ PVOID BaseAddress,
+                                           _In_ ULONG UnmapFlags);
+
+template <typename T>
+static void GetFuncAddress(Common::DynamicLibrary& dll, const char* name, T& pfn) {
+    if (!dll.GetSymbol(name, &pfn)) {
+        LOG_CRITICAL(HW_Memory, "Failed to load {}", name);
+        throw std::bad_alloc{};
+    }
+}
+
+class HostMemory::Impl {
+public:
+    explicit Impl(size_t backing_size_, size_t virtual_size_)
+        : backing_size{backing_size_}, virtual_size{virtual_size_}, process{GetCurrentProcess()},
+          kernelbase_dll("Kernelbase") {
+        if (!kernelbase_dll.IsOpen()) {
+            LOG_CRITICAL(HW_Memory, "Failed to load Kernelbase.dll");
+            throw std::bad_alloc{};
+        }
+        GetFuncAddress(kernelbase_dll, "CreateFileMapping2", pfn_CreateFileMapping2);
+        GetFuncAddress(kernelbase_dll, "VirtualAlloc2", pfn_VirtualAlloc2);
+        GetFuncAddress(kernelbase_dll, "MapViewOfFile3", pfn_MapViewOfFile3);
+        GetFuncAddress(kernelbase_dll, "UnmapViewOfFile2", pfn_UnmapViewOfFile2);
+
+        // Allocate backing file map
+        backing_handle =
+            pfn_CreateFileMapping2(INVALID_HANDLE_VALUE, nullptr, FILE_MAP_WRITE | FILE_MAP_READ,
+                                   PAGE_READWRITE, SEC_COMMIT, backing_size, nullptr, nullptr, 0);
+        if (!backing_handle) {
+            LOG_CRITICAL(HW_Memory, "Failed to allocate {} MiB of backing memory",
+                         backing_size >> 20);
+            throw std::bad_alloc{};
+        }
+        // Allocate a virtual memory for the backing file map as placeholder
+        backing_base = static_cast<u8*>(pfn_VirtualAlloc2(process, nullptr, backing_size,
+                                                          MEM_RESERVE | MEM_RESERVE_PLACEHOLDER,
+                                                          PAGE_NOACCESS, nullptr, 0));
+        if (!backing_base) {
+            Release();
+            LOG_CRITICAL(HW_Memory, "Failed to reserve {} MiB of virtual memory",
+                         backing_size >> 20);
+            throw std::bad_alloc{};
+        }
+        // Map backing placeholder
+        void* const ret = pfn_MapViewOfFile3(backing_handle, process, backing_base, 0, backing_size,
+                                             MEM_REPLACE_PLACEHOLDER, PAGE_READWRITE, nullptr, 0);
+        if (ret != backing_base) {
+            Release();
+            LOG_CRITICAL(HW_Memory, "Failed to map {} MiB of virtual memory", backing_size >> 20);
+            throw std::bad_alloc{};
+        }
+        // Allocate virtual address placeholder
+        virtual_base = static_cast<u8*>(pfn_VirtualAlloc2(process, nullptr, virtual_size,
+                                                          MEM_RESERVE | MEM_RESERVE_PLACEHOLDER,
+                                                          PAGE_NOACCESS, nullptr, 0));
+        if (!virtual_base) {
+            Release();
+            LOG_CRITICAL(HW_Memory, "Failed to reserve {} GiB of virtual memory",
+                         virtual_size >> 30);
+            throw std::bad_alloc{};
+        }
+    }
+
+    ~Impl() {
+        Release();
+    }
+
+    void Map(size_t virtual_offset, size_t host_offset, size_t length) {
+        std::unique_lock lock{placeholder_mutex};
+        if (!IsNiechePlaceholder(virtual_offset, length)) {
+            Split(virtual_offset, length);
+        }
+        ASSERT(placeholders.find({virtual_offset, virtual_offset + length}) == placeholders.end());
+        TrackPlaceholder(virtual_offset, host_offset, length);
+
+        MapView(virtual_offset, host_offset, length);
+    }
+
+    void Unmap(size_t virtual_offset, size_t length) {
+        std::lock_guard lock{placeholder_mutex};
+
+        // Unmap until there are no more placeholders
+        while (UnmapOnePlaceholder(virtual_offset, length)) {
+        }
+    }
+
+    void Protect(size_t virtual_offset, size_t length, bool read, bool write) {
+        DWORD new_flags{};
+        if (read && write) {
+            new_flags = PAGE_READWRITE;
+        } else if (read && !write) {
+            new_flags = PAGE_READONLY;
+        } else if (!read && !write) {
+            new_flags = PAGE_NOACCESS;
+        } else {
+            UNIMPLEMENTED_MSG("Protection flag combination read={} write={}", read, write);
+        }
+        const size_t virtual_end = virtual_offset + length;
+
+        std::lock_guard lock{placeholder_mutex};
+        auto [it, end] = placeholders.equal_range({virtual_offset, virtual_end});
+        while (it != end) {
+            const size_t offset = std::max(it->lower(), virtual_offset);
+            const size_t protect_length = std::min(it->upper(), virtual_end) - offset;
+            DWORD old_flags{};
+            if (!VirtualProtect(virtual_base + offset, protect_length, new_flags, &old_flags)) {
+                LOG_CRITICAL(HW_Memory, "Failed to change virtual memory protect rules");
+            }
+            ++it;
+        }
+    }
+
+    const size_t backing_size; ///< Size of the backing memory in bytes
+    const size_t virtual_size; ///< Size of the virtual address placeholder in bytes
+
+    u8* backing_base{};
+    u8* virtual_base{};
+
+private:
+    /// Release all resources in the object
+    void Release() {
+        if (!placeholders.empty()) {
+            for (const auto& placeholder : placeholders) {
+                if (!pfn_UnmapViewOfFile2(process, virtual_base + placeholder.lower(),
+                                          MEM_PRESERVE_PLACEHOLDER)) {
+                    LOG_CRITICAL(HW_Memory, "Failed to unmap virtual memory placeholder");
+                }
+            }
+            Coalesce(0, virtual_size);
+        }
+        if (virtual_base) {
+            if (!VirtualFree(virtual_base, 0, MEM_RELEASE)) {
+                LOG_CRITICAL(HW_Memory, "Failed to free virtual memory");
+            }
+        }
+        if (backing_base) {
+            if (!pfn_UnmapViewOfFile2(process, backing_base, MEM_PRESERVE_PLACEHOLDER)) {
+                LOG_CRITICAL(HW_Memory, "Failed to unmap backing memory placeholder");
+            }
+            if (!VirtualFreeEx(process, backing_base, 0, MEM_RELEASE)) {
+                LOG_CRITICAL(HW_Memory, "Failed to free backing memory");
+            }
+        }
+        if (!CloseHandle(backing_handle)) {
+            LOG_CRITICAL(HW_Memory, "Failed to free backing memory file handle");
+        }
+    }
+
+    /// Unmap one placeholder in the given range (partial unmaps are supported)
+    /// Return true when there are no more placeholders to unmap
+    bool UnmapOnePlaceholder(size_t virtual_offset, size_t length) {
+        const auto it = placeholders.find({virtual_offset, virtual_offset + length});
+        const auto begin = placeholders.begin();
+        const auto end = placeholders.end();
+        if (it == end) {
+            return false;
+        }
+        const size_t placeholder_begin = it->lower();
+        const size_t placeholder_end = it->upper();
+        const size_t unmap_begin = std::max(virtual_offset, placeholder_begin);
+        const size_t unmap_end = std::min(virtual_offset + length, placeholder_end);
+        ASSERT(unmap_begin >= placeholder_begin && unmap_begin < placeholder_end);
+        ASSERT(unmap_end <= placeholder_end && unmap_end > placeholder_begin);
+
+        const auto host_pointer_it = placeholder_host_pointers.find(placeholder_begin);
+        ASSERT(host_pointer_it != placeholder_host_pointers.end());
+        const size_t host_offset = host_pointer_it->second;
+
+        const bool split_left = unmap_begin > placeholder_begin;
+        const bool split_right = unmap_end < placeholder_end;
+
+        if (!pfn_UnmapViewOfFile2(process, virtual_base + placeholder_begin,
+                                  MEM_PRESERVE_PLACEHOLDER)) {
+            LOG_CRITICAL(HW_Memory, "Failed to unmap placeholder");
+        }
+        // If we have to remap memory regions due to partial unmaps, we are in a data race as
+        // Windows doesn't support remapping memory without unmapping first. Avoid adding any extra
+        // logic within the panic region described below.
+
+        // Panic region, we are in a data race right now
+        if (split_left || split_right) {
+            Split(unmap_begin, unmap_end - unmap_begin);
+        }
+        if (split_left) {
+            MapView(placeholder_begin, host_offset, unmap_begin - placeholder_begin);
+        }
+        if (split_right) {
+            MapView(unmap_end, host_offset + unmap_end - placeholder_begin,
+                    placeholder_end - unmap_end);
+        }
+        // End panic region
+
+        size_t coalesce_begin = unmap_begin;
+        if (!split_left) {
+            // Try to coalesce pages to the left
+            coalesce_begin = it == begin ? 0 : std::prev(it)->upper();
+            if (coalesce_begin != placeholder_begin) {
+                Coalesce(coalesce_begin, unmap_end - coalesce_begin);
+            }
+        }
+        if (!split_right) {
+            // Try to coalesce pages to the right
+            const auto next = std::next(it);
+            const size_t next_begin = next == end ? virtual_size : next->lower();
+            if (placeholder_end != next_begin) {
+                // We can coalesce to the right
+                Coalesce(coalesce_begin, next_begin - coalesce_begin);
+            }
+        }
+        // Remove and reinsert placeholder trackers
+        UntrackPlaceholder(it);
+        if (split_left) {
+            TrackPlaceholder(placeholder_begin, host_offset, unmap_begin - placeholder_begin);
+        }
+        if (split_right) {
+            TrackPlaceholder(unmap_end, host_offset + unmap_end - placeholder_begin,
+                             placeholder_end - unmap_end);
+        }
+        return true;
+    }
+
+    void MapView(size_t virtual_offset, size_t host_offset, size_t length) {
+        if (!pfn_MapViewOfFile3(backing_handle, process, virtual_base + virtual_offset, host_offset,
+                                length, MEM_REPLACE_PLACEHOLDER, PAGE_READWRITE, nullptr, 0)) {
+            LOG_CRITICAL(HW_Memory, "Failed to map placeholder");
+        }
+    }
+
+    void Split(size_t virtual_offset, size_t length) {
+        if (!VirtualFreeEx(process, reinterpret_cast<LPVOID>(virtual_base + virtual_offset), length,
+                           MEM_RELEASE | MEM_PRESERVE_PLACEHOLDER)) {
+            LOG_CRITICAL(HW_Memory, "Failed to split placeholder");
+        }
+    }
+
+    void Coalesce(size_t virtual_offset, size_t length) {
+        if (!VirtualFreeEx(process, reinterpret_cast<LPVOID>(virtual_base + virtual_offset), length,
+                           MEM_RELEASE | MEM_COALESCE_PLACEHOLDERS)) {
+            LOG_CRITICAL(HW_Memory, "Failed to coalesce placeholders");
+        }
+    }
+
+    void TrackPlaceholder(size_t virtual_offset, size_t host_offset, size_t length) {
+        placeholders.insert({virtual_offset, virtual_offset + length});
+        placeholder_host_pointers.emplace(virtual_offset, host_offset);
+    }
+
+    void UntrackPlaceholder(boost::icl::separate_interval_set<size_t>::iterator it) {
+        placeholders.erase(it);
+        placeholder_host_pointers.erase(it->lower());
+    }
+
+    /// Return true when a given memory region is a "nieche" and the placeholders don't have to be
+    /// splitted.
+    bool IsNiechePlaceholder(size_t virtual_offset, size_t length) const {
+        const auto it = placeholders.upper_bound({virtual_offset, virtual_offset + length});
+        if (it != placeholders.end() && it->lower() == virtual_offset + length) {
+            const bool is_root = it == placeholders.begin() && virtual_offset == 0;
+            return is_root || std::prev(it)->upper() == virtual_offset;
+        }
+        return false;
+    }
+
+    HANDLE process{};        ///< Current process handle
+    HANDLE backing_handle{}; ///< File based backing memory
+
+    DynamicLibrary kernelbase_dll;
+    PFN_CreateFileMapping2 pfn_CreateFileMapping2{};
+    PFN_VirtualAlloc2 pfn_VirtualAlloc2{};
+    PFN_MapViewOfFile3 pfn_MapViewOfFile3{};
+    PFN_UnmapViewOfFile2 pfn_UnmapViewOfFile2{};
+
+    std::mutex placeholder_mutex;                                 ///< Mutex for placeholders
+    boost::icl::separate_interval_set<size_t> placeholders;       ///< Mapped placeholders
+    std::unordered_map<size_t, size_t> placeholder_host_pointers; ///< Placeholder backing offset
+};
+
+#elif defined(__linux__) // ^^^ Windows ^^^ vvv Linux vvv
+
+class HostMemory::Impl {
+public:
+    explicit Impl(size_t backing_size_, size_t virtual_size_)
+        : backing_size{backing_size_}, virtual_size{virtual_size_} {
+        bool good = false;
+        SCOPE_EXIT({
+            if (!good) {
+                Release();
+            }
+        });
+
+        // Backing memory initialization
+        fd = memfd_create("HostMemory", 0);
+        if (fd == -1) {
+            LOG_CRITICAL(HW_Memory, "memfd_create failed: {}", strerror(errno));
+            throw std::bad_alloc{};
+        }
+
+        // Defined to extend the file with zeros
+        int ret = ftruncate(fd, backing_size);
+        if (ret != 0) {
+            LOG_CRITICAL(HW_Memory, "ftruncate failed with {}, are you out-of-memory?",
+                         strerror(errno));
+            throw std::bad_alloc{};
+        }
+
+        backing_base = static_cast<u8*>(
+            mmap(nullptr, backing_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0));
+        if (backing_base == MAP_FAILED) {
+            LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno));
+            throw std::bad_alloc{};
+        }
+
+        // Virtual memory initialization
+        virtual_base = static_cast<u8*>(
+            mmap(nullptr, virtual_size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0));
+        if (virtual_base == MAP_FAILED) {
+            LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno));
+            throw std::bad_alloc{};
+        }
+
+        good = true;
+    }
+
+    ~Impl() {
+        Release();
+    }
+
+    void Map(size_t virtual_offset, size_t host_offset, size_t length) {
+
+        void* ret = mmap(virtual_base + virtual_offset, length, PROT_READ | PROT_WRITE,
+                         MAP_SHARED | MAP_FIXED, fd, host_offset);
+        ASSERT_MSG(ret != MAP_FAILED, "mmap failed: {}", strerror(errno));
+    }
+
+    void Unmap(size_t virtual_offset, size_t length) {
+        // The method name is wrong. We're still talking about the virtual range.
+        // We don't want to unmap, we want to reserve this memory.
+
+        void* ret = mmap(virtual_base + virtual_offset, length, PROT_NONE,
+                         MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
+        ASSERT_MSG(ret != MAP_FAILED, "mmap failed: {}", strerror(errno));
+    }
+
+    void Protect(size_t virtual_offset, size_t length, bool read, bool write) {
+        int flags = 0;
+        if (read) {
+            flags |= PROT_READ;
+        }
+        if (write) {
+            flags |= PROT_WRITE;
+        }
+        int ret = mprotect(virtual_base + virtual_offset, length, flags);
+        ASSERT_MSG(ret == 0, "mprotect failed: {}", strerror(errno));
+    }
+
+    const size_t backing_size; ///< Size of the backing memory in bytes
+    const size_t virtual_size; ///< Size of the virtual address placeholder in bytes
+
+    u8* backing_base{reinterpret_cast<u8*>(MAP_FAILED)};
+    u8* virtual_base{reinterpret_cast<u8*>(MAP_FAILED)};
+
+private:
+    /// Release all resources in the object
+    void Release() {
+        if (virtual_base != MAP_FAILED) {
+            int ret = munmap(virtual_base, virtual_size);
+            ASSERT_MSG(ret == 0, "munmap failed: {}", strerror(errno));
+        }
+
+        if (backing_base != MAP_FAILED) {
+            int ret = munmap(backing_base, backing_size);
+            ASSERT_MSG(ret == 0, "munmap failed: {}", strerror(errno));
+        }
+
+        if (fd != -1) {
+            int ret = close(fd);
+            ASSERT_MSG(ret == 0, "close failed: {}", strerror(errno));
+        }
+    }
+
+    int fd{-1}; // memfd file descriptor, -1 is the error value of memfd_create
+};
+
+#else // ^^^ Linux ^^^ vvv Generic vvv
+
+class HostMemory::Impl {
+public:
+    explicit Impl(size_t /*backing_size */, size_t /* virtual_size */) {
+        // This is just a place holder.
+        // Please implement fastmem in a propper way on your platform.
+        throw std::bad_alloc{};
+    }
+
+    void Map(size_t virtual_offset, size_t host_offset, size_t length) {}
+
+    void Unmap(size_t virtual_offset, size_t length) {}
+
+    void Protect(size_t virtual_offset, size_t length, bool read, bool write) {}
+
+    u8* backing_base{nullptr};
+    u8* virtual_base{nullptr};
+};
+
+#endif // ^^^ Generic ^^^
+
+HostMemory::HostMemory(size_t backing_size_, size_t virtual_size_)
+    : backing_size(backing_size_), virtual_size(virtual_size_) {
+    try {
+        // Try to allocate a fastmem arena.
+        // The implementation will fail with std::bad_alloc on errors.
+        impl = std::make_unique<HostMemory::Impl>(AlignUp(backing_size, PageAlignment),
+                                                  AlignUp(virtual_size, PageAlignment) +
+                                                      3 * HugePageSize);
+        backing_base = impl->backing_base;
+        virtual_base = impl->virtual_base;
+
+        if (virtual_base) {
+            virtual_base += 2 * HugePageSize - 1;
+            virtual_base -= reinterpret_cast<size_t>(virtual_base) & (HugePageSize - 1);
+            virtual_base_offset = virtual_base - impl->virtual_base;
+        }
+
+    } catch (const std::bad_alloc&) {
+        LOG_CRITICAL(HW_Memory,
+                     "Fastmem unavailable, falling back to VirtualBuffer for memory allocation");
+        fallback_buffer = std::make_unique<Common::VirtualBuffer<u8>>(backing_size);
+        backing_base = fallback_buffer->data();
+        virtual_base = nullptr;
+    }
+}
+
+HostMemory::~HostMemory() = default;
+
+HostMemory::HostMemory(HostMemory&&) noexcept = default;
+
+HostMemory& HostMemory::operator=(HostMemory&&) noexcept = default;
+
+void HostMemory::Map(size_t virtual_offset, size_t host_offset, size_t length) {
+    ASSERT(virtual_offset % PageAlignment == 0);
+    ASSERT(host_offset % PageAlignment == 0);
+    ASSERT(length % PageAlignment == 0);
+    ASSERT(virtual_offset + length <= virtual_size);
+    ASSERT(host_offset + length <= backing_size);
+    if (length == 0 || !virtual_base || !impl) {
+        return;
+    }
+    impl->Map(virtual_offset + virtual_base_offset, host_offset, length);
+}
+
+void HostMemory::Unmap(size_t virtual_offset, size_t length) {
+    ASSERT(virtual_offset % PageAlignment == 0);
+    ASSERT(length % PageAlignment == 0);
+    ASSERT(virtual_offset + length <= virtual_size);
+    if (length == 0 || !virtual_base || !impl) {
+        return;
+    }
+    impl->Unmap(virtual_offset + virtual_base_offset, length);
+}
+
+void HostMemory::Protect(size_t virtual_offset, size_t length, bool read, bool write) {
+    ASSERT(virtual_offset % PageAlignment == 0);
+    ASSERT(length % PageAlignment == 0);
+    ASSERT(virtual_offset + length <= virtual_size);
+    if (length == 0 || !virtual_base || !impl) {
+        return;
+    }
+    impl->Protect(virtual_offset + virtual_base_offset, length, read, write);
+}
+
+} // namespace Common
--- a/src/common/host_memory.h
+++ b/src/common/host_memory.h
@@ -0,0 +1,70 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include "common/common_types.h"
+#include "common/virtual_buffer.h"
+
+namespace Common {
+
+/**
+ * A low level linear memory buffer, which supports multiple mappings
+ * Its purpose is to rebuild a given sparse memory layout, including mirrors.
+ */
+class HostMemory {
+public:
+    explicit HostMemory(size_t backing_size_, size_t virtual_size_);
+    ~HostMemory();
+
+    /**
+     * Copy constructors. They shall return a copy of the buffer without the mappings.
+     * TODO: Implement them with COW if needed.
+     */
+    HostMemory(const HostMemory& other) = delete;
+    HostMemory& operator=(const HostMemory& other) = delete;
+
+    /**
+     * Move constructors. They will move the buffer and the mappings to the new object.
+     */
+    HostMemory(HostMemory&& other) noexcept;
+    HostMemory& operator=(HostMemory&& other) noexcept;
+
+    void Map(size_t virtual_offset, size_t host_offset, size_t length);
+
+    void Unmap(size_t virtual_offset, size_t length);
+
+    void Protect(size_t virtual_offset, size_t length, bool read, bool write);
+
+    [[nodiscard]] u8* BackingBasePointer() noexcept {
+        return backing_base;
+    }
+    [[nodiscard]] const u8* BackingBasePointer() const noexcept {
+        return backing_base;
+    }
+
+    [[nodiscard]] u8* VirtualBasePointer() noexcept {
+        return virtual_base;
+    }
+    [[nodiscard]] const u8* VirtualBasePointer() const noexcept {
+        return virtual_base;
+    }
+
+private:
+    size_t backing_size{};
+    size_t virtual_size{};
+
+    // Low level handler for the platform dependent memory routines
+    class Impl;
+    std::unique_ptr<Impl> impl;
+    u8* backing_base{};
+    u8* virtual_base{};
+    size_t virtual_base_offset{};
+
+    // Fallback if fastmem is not supported on this platform
+    std::unique_ptr<Common::VirtualBuffer<u8>> fallback_buffer;
+};
+
+} // namespace Common
--- a/src/common/literals.h
+++ b/src/common/literals.h
@@ -0,0 +1,31 @@
+// Copyright 2021 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace Common::Literals {
+
+constexpr u64 operator""_KiB(unsigned long long int x) {
+    return 1024ULL * x;
+}
+
+constexpr u64 operator""_MiB(unsigned long long int x) {
+    return 1024_KiB * x;
+}
+
+constexpr u64 operator""_GiB(unsigned long long int x) {
+    return 1024_MiB * x;
+}
+
+constexpr u64 operator""_TiB(unsigned long long int x) {
+    return 1024_GiB * x;
+}
+
+constexpr u64 operator""_PiB(unsigned long long int x) {
+    return 1024_TiB * x;
+}
+
+} // namespace Common::Literals
--- a/src/common/logging/backend.cpp
+++ b/src/common/logging/backend.cpp
@@ -17,7 +17,10 @@
 #endif

 #include "common/assert.h"
+#include "common/fs/file.h"
 #include "common/fs/fs.h"
+#include "common/literals.h"
+
 #include "common/logging/backend.h"
 #include "common/logging/log.h"
 #include "common/logging/text_formatter.h"
@@ -97,8 +100,8 @@ private:
                write_logs(entry);
            }

-            // Drain the logging queue. Only writes out up to MAX_LOGS_TO_WRITE to prevent a case
-            // where a system is repeatedly spamming logs even on close.
+            // Drain the logging queue. Only writes out up to MAX_LOGS_TO_WRITE to prevent a
+            // case where a system is repeatedly spamming logs even on close.
            const int MAX_LOGS_TO_WRITE = filter.IsDebug() ? INT_MAX : 100;
            int logs_written = 0;
            while (logs_written++ < MAX_LOGS_TO_WRITE && message_queue.Pop(entry)) {
@@ -140,10 +143,14 @@ private:
    std::chrono::steady_clock::time_point time_origin{std::chrono::steady_clock::now()};
 };

+ConsoleBackend::~ConsoleBackend() = default;
+
 void ConsoleBackend::Write(const Entry& entry) {
    PrintMessage(entry);
 }

+ColorConsoleBackend::~ColorConsoleBackend() = default;
+
 void ColorConsoleBackend::Write(const Entry& entry) {
    PrintColoredMessage(entry);
 }
@@ -154,19 +161,23 @@ FileBackend::FileBackend(const std::filesystem::path& filename) {

    // Existence checks are done within the functions themselves.
    // We don't particularly care if these succeed or not.
-    void(FS::RemoveFile(old_filename));
+    FS::RemoveFile(old_filename);
    void(FS::RenameFile(filename, old_filename));

-    file = FS::IOFile(filename, FS::FileAccessMode::Write, FS::FileType::TextFile);
+    file =
+        std::make_unique<FS::IOFile>(filename, FS::FileAccessMode::Write, FS::FileType::TextFile);
 }

+FileBackend::~FileBackend() = default;
+
 void FileBackend::Write(const Entry& entry) {
+    using namespace Common::Literals;
    // prevent logs from going over the maximum size (in case its spamming and the user doesn't
    // know)
-    constexpr std::size_t MAX_BYTES_WRITTEN = 100 * 1024 * 1024;
-    constexpr std::size_t MAX_BYTES_WRITTEN_EXTENDED = 1024 * 1024 * 1024;
+    constexpr std::size_t MAX_BYTES_WRITTEN = 100_MiB;
+    constexpr std::size_t MAX_BYTES_WRITTEN_EXTENDED = 1_GiB;

-    if (!file.IsOpen()) {
+    if (!file->IsOpen()) {
        return;
    }

@@ -176,147 +187,20 @@ void FileBackend::Write(const Entry& entry) {
        return;
    }

-    bytes_written += file.WriteString(FormatLogMessage(entry).append(1, '\n'));
+    bytes_written += file->WriteString(FormatLogMessage(entry).append(1, '\n'));
    if (entry.log_level >= Level::Error) {
-        void(file.Flush());
+        file->Flush();
    }
 }

+DebuggerBackend::~DebuggerBackend() = default;
+
 void DebuggerBackend::Write(const Entry& entry) {
 #ifdef _WIN32
    ::OutputDebugStringW(UTF8ToUTF16W(FormatLogMessage(entry).append(1, '\n')).c_str());
 #endif
 }

-/// Macro listing all log classes. Code should define CLS and SUB as desired before invoking this.
-#define ALL_LOG_CLASSES()                                                                          \
-    CLS(Log)                                                                                       \
-    CLS(Common)                                                                                    \
-    SUB(Common, Filesystem)                                                                        \
-    SUB(Common, Memory)                                                                            \
-    CLS(Core)                                                                                      \
-    SUB(Core, ARM)                                                                                 \
-    SUB(Core, Timing)                                                                              \
-    CLS(Config)                                                                                    \
-    CLS(Debug)                                                                                     \
-    SUB(Debug, Emulated)                                                                           \
-    SUB(Debug, GPU)                                                                                \
-    SUB(Debug, Breakpoint)                                                                         \
-    SUB(Debug, GDBStub)                                                                            \
-    CLS(Kernel)                                                                                    \
-    SUB(Kernel, SVC)                                                                               \
-    CLS(Service)                                                                                   \
-    SUB(Service, ACC)                                                                              \
-    SUB(Service, Audio)                                                                            \
-    SUB(Service, AM)                                                                               \
-    SUB(Service, AOC)                                                                              \
-    SUB(Service, APM)                                                                              \
-    SUB(Service, ARP)                                                                              \
-    SUB(Service, BCAT)                                                                             \
-    SUB(Service, BPC)                                                                              \
-    SUB(Service, BGTC)                                                                             \
-    SUB(Service, BTDRV)                                                                            \
-    SUB(Service, BTM)                                                                              \
-    SUB(Service, Capture)                                                                          \
-    SUB(Service, ERPT)                                                                             \
-    SUB(Service, ETicket)                                                                          \
-    SUB(Service, EUPLD)                                                                            \
-    SUB(Service, Fatal)                                                                            \
-    SUB(Service, FGM)                                                                              \
-    SUB(Service, Friend)                                                                           \
-    SUB(Service, FS)                                                                               \
-    SUB(Service, GRC)                                                                              \
-    SUB(Service, HID)                                                                              \
-    SUB(Service, IRS)                                                                              \
-    SUB(Service, LBL)                                                                              \
-    SUB(Service, LDN)                                                                              \
-    SUB(Service, LDR)                                                                              \
-    SUB(Service, LM)                                                                               \
-    SUB(Service, Migration)                                                                        \
-    SUB(Service, Mii)                                                                              \
-    SUB(Service, MM)                                                                               \
-    SUB(Service, NCM)                                                                              \
-    SUB(Service, NFC)                                                                              \
-    SUB(Service, NFP)                                                                              \
-    SUB(Service, NIFM)                                                                             \
-    SUB(Service, NIM)                                                                              \
-    SUB(Service, NPNS)                                                                             \
-    SUB(Service, NS)                                                                               \
-    SUB(Service, NVDRV)                                                                            \
-    SUB(Service, OLSC)                                                                             \
-    SUB(Service, PCIE)                                                                             \
-    SUB(Service, PCTL)                                                                             \
-    SUB(Service, PCV)                                                                              \
-    SUB(Service, PM)                                                                               \
-    SUB(Service, PREPO)                                                                            \
-    SUB(Service, PSC)                                                                              \
-    SUB(Service, PSM)                                                                              \
-    SUB(Service, SET)                                                                              \
-    SUB(Service, SM)                                                                               \
-    SUB(Service, SPL)                                                                              \
-    SUB(Service, SSL)                                                                              \
-    SUB(Service, TCAP)                                                                             \
-    SUB(Service, Time)                                                                             \
-    SUB(Service, USB)                                                                              \
-    SUB(Service, VI)                                                                               \
-    SUB(Service, WLAN)                                                                             \
-    CLS(HW)                                                                                        \
-    SUB(HW, Memory)                                                                                \
-    SUB(HW, LCD)                                                                                   \
-    SUB(HW, GPU)                                                                                   \
-    SUB(HW, AES)                                                                                   \
-    CLS(IPC)                                                                                       \
-    CLS(Frontend)                                                                                  \
-    CLS(Render)                                                                                    \
-    SUB(Render, Software)                                                                          \
-    SUB(Render, OpenGL)                                                                            \
-    SUB(Render, Vulkan)                                                                            \
-    CLS(Audio)                                                                                     \
-    SUB(Audio, DSP)                                                                                \
-    SUB(Audio, Sink)                                                                               \
-    CLS(Input)                                                                                     \
-    CLS(Network)                                                                                   \
-    CLS(Loader)                                                                                    \
-    CLS(CheatEngine)                                                                               \
-    CLS(Crypto)                                                                                    \
-    CLS(WebService)
-
-// GetClassName is a macro defined by Windows.h, grrr...
-const char* GetLogClassName(Class log_class) {
-    switch (log_class) {
-#define CLS(x)                                                                                     \
-    case Class::x:                                                                                 \
-        return #x;
-#define SUB(x, y)                                                                                  \
-    case Class::x##_##y:                                                                           \
-        return #x "." #y;
-        ALL_LOG_CLASSES()
-#undef CLS
-#undef SUB
-    case Class::Count:
-        break;
-    }
-    return "Invalid";
-}
-
-const char* GetLevelName(Level log_level) {
-#define LVL(x)                                                                                     \
-    case Level::x:                                                                                 \
-        return #x
-    switch (log_level) {
-        LVL(Trace);
-        LVL(Debug);
-        LVL(Info);
-        LVL(Warning);
-        LVL(Error);
-        LVL(Critical);
-    case Level::Count:
-        break;
-    }
-#undef LVL
-    return "Invalid";
-}
-
 void SetGlobalFilter(const Filter& filter) {
    Impl::Instance().SetGlobalFilter(filter);
 }
--- a/src/common/logging/backend.h
+++ b/src/common/logging/backend.h
@@ -1,36 +1,24 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
+
 #pragma once

-#include <chrono>
 #include <filesystem>
 #include <memory>
 #include <string>
 #include <string_view>
-#include "common/fs/file.h"
 #include "common/logging/filter.h"
 #include "common/logging/log.h"

+namespace Common::FS {
+class IOFile;
+}
+
 namespace Common::Log {

 class Filter;

-/**
- * A log entry. Log entries are store in a structured format to permit more varied output
- * formatting on different frontends, as well as facilitating filtering and aggregation.
- */
-struct Entry {
-    std::chrono::microseconds timestamp;
-    Class log_class{};
-    Level log_level{};
-    const char* filename = nullptr;
-    unsigned int line_num = 0;
-    std::string function;
-    std::string message;
-    bool final_entry = false;
-};
-
 /**
 * Interface for logging backends. As loggers can be created and removed at runtime, this can be
 * used by a frontend for adding a custom logging backend as needed
@@ -38,6 +26,7 @@ struct Entry {
 class Backend {
 public:
    virtual ~Backend() = default;
+
    virtual void SetFilter(const Filter& new_filter) {
        filter = new_filter;
    }
@@ -53,6 +42,8 @@ private:
 */
 class ConsoleBackend : public Backend {
 public:
+    ~ConsoleBackend() override;
+
    static const char* Name() {
        return "console";
    }
@@ -67,6 +58,8 @@ public:
 */
 class ColorConsoleBackend : public Backend {
 public:
+    ~ColorConsoleBackend() override;
+
    static const char* Name() {
        return "color_console";
    }
@@ -83,6 +76,7 @@ public:
 class FileBackend : public Backend {
 public:
    explicit FileBackend(const std::filesystem::path& filename);
+    ~FileBackend() override;

    static const char* Name() {
        return "file";
@@ -95,7 +89,7 @@ public:
    void Write(const Entry& entry) override;

 private:
-    FS::IOFile file;
+    std::unique_ptr<FS::IOFile> file;
    std::size_t bytes_written = 0;
 };

@@ -104,6 +98,8 @@ private:
 */
 class DebuggerBackend : public Backend {
 public:
+    ~DebuggerBackend() override;
+
    static const char* Name() {
        return "debugger";
    }
@@ -119,17 +115,6 @@ void RemoveBackend(std::string_view backend_name);

 Backend* GetBackend(std::string_view backend_name);

-/**
- * Returns the name of the passed log class as a C-string. Subclasses are separated by periods
- * instead of underscores as in the enumeration.
- */
-const char* GetLogClassName(Class log_class);
-
-/**
- * Returns the name of the passed log level as a C-string.
- */
-const char* GetLevelName(Level log_level);
-
 /**
 * The global filter will prevent any messages from even being processed if they are filtered. Each
 * backend can have a filter, but if the level is lower than the global filter, the backend will
--- a/src/common/logging/filter.cpp
+++ b/src/common/logging/filter.cpp
@@ -3,7 +3,6 @@
 // Refer to the license.txt file included.

 #include <algorithm>
-#include "common/logging/backend.h"
 #include "common/logging/filter.h"
 #include "common/string_util.h"

@@ -22,7 +21,7 @@ Level GetLevelByName(const It begin, const It end) {

 template <typename It>
 Class GetClassByName(const It begin, const It end) {
-    for (ClassType i = 0; i < static_cast<ClassType>(Class::Count); ++i) {
+    for (u8 i = 0; i < static_cast<u8>(Class::Count); ++i) {
        const char* level_name = GetLogClassName(static_cast<Class>(i));
        if (Common::ComparePartialString(begin, end, level_name)) {
            return static_cast<Class>(i);
@@ -62,6 +61,135 @@ bool ParseFilterRule(Filter& instance, Iterator begin, Iterator end) {
 }
 } // Anonymous namespace

+/// Macro listing all log classes. Code should define CLS and SUB as desired before invoking this.
+#define ALL_LOG_CLASSES()                                                                          \
+    CLS(Log)                                                                                       \
+    CLS(Common)                                                                                    \
+    SUB(Common, Filesystem)                                                                        \
+    SUB(Common, Memory)                                                                            \
+    CLS(Core)                                                                                      \
+    SUB(Core, ARM)                                                                                 \
+    SUB(Core, Timing)                                                                              \
+    CLS(Config)                                                                                    \
+    CLS(Debug)                                                                                     \
+    SUB(Debug, Emulated)                                                                           \
+    SUB(Debug, GPU)                                                                                \
+    SUB(Debug, Breakpoint)                                                                         \
+    SUB(Debug, GDBStub)                                                                            \
+    CLS(Kernel)                                                                                    \
+    SUB(Kernel, SVC)                                                                               \
+    CLS(Service)                                                                                   \
+    SUB(Service, ACC)                                                                              \
+    SUB(Service, Audio)                                                                            \
+    SUB(Service, AM)                                                                               \
+    SUB(Service, AOC)                                                                              \
+    SUB(Service, APM)                                                                              \
+    SUB(Service, ARP)                                                                              \
+    SUB(Service, BCAT)                                                                             \
+    SUB(Service, BPC)                                                                              \
+    SUB(Service, BGTC)                                                                             \
+    SUB(Service, BTDRV)                                                                            \
+    SUB(Service, BTM)                                                                              \
+    SUB(Service, Capture)                                                                          \
+    SUB(Service, ERPT)                                                                             \
+    SUB(Service, ETicket)                                                                          \
+    SUB(Service, EUPLD)                                                                            \
+    SUB(Service, Fatal)                                                                            \
+    SUB(Service, FGM)                                                                              \
+    SUB(Service, Friend)                                                                           \
+    SUB(Service, FS)                                                                               \
+    SUB(Service, GRC)                                                                              \
+    SUB(Service, HID)                                                                              \
+    SUB(Service, IRS)                                                                              \
+    SUB(Service, LBL)                                                                              \
+    SUB(Service, LDN)                                                                              \
+    SUB(Service, LDR)                                                                              \
+    SUB(Service, LM)                                                                               \
+    SUB(Service, Migration)                                                                        \
+    SUB(Service, Mii)                                                                              \
+    SUB(Service, MM)                                                                               \
+    SUB(Service, NCM)                                                                              \
+    SUB(Service, NFC)                                                                              \
+    SUB(Service, NFP)                                                                              \
+    SUB(Service, NIFM)                                                                             \
+    SUB(Service, NIM)                                                                              \
+    SUB(Service, NPNS)                                                                             \
+    SUB(Service, NS)                                                                               \
+    SUB(Service, NVDRV)                                                                            \
+    SUB(Service, OLSC)                                                                             \
+    SUB(Service, PCIE)                                                                             \
+    SUB(Service, PCTL)                                                                             \
+    SUB(Service, PCV)                                                                              \
+    SUB(Service, PM)                                                                               \
+    SUB(Service, PREPO)                                                                            \
+    SUB(Service, PSC)                                                                              \
+    SUB(Service, PSM)                                                                              \
+    SUB(Service, SET)                                                                              \
+    SUB(Service, SM)                                                                               \
+    SUB(Service, SPL)                                                                              \
+    SUB(Service, SSL)                                                                              \
+    SUB(Service, TCAP)                                                                             \
+    SUB(Service, Time)                                                                             \
+    SUB(Service, USB)                                                                              \
+    SUB(Service, VI)                                                                               \
+    SUB(Service, WLAN)                                                                             \
+    CLS(HW)                                                                                        \
+    SUB(HW, Memory)                                                                                \
+    SUB(HW, LCD)                                                                                   \
+    SUB(HW, GPU)                                                                                   \
+    SUB(HW, AES)                                                                                   \
+    CLS(IPC)                                                                                       \
+    CLS(Frontend)                                                                                  \
+    CLS(Render)                                                                                    \
+    SUB(Render, Software)                                                                          \
+    SUB(Render, OpenGL)                                                                            \
+    SUB(Render, Vulkan)                                                                            \
+    CLS(Audio)                                                                                     \
+    SUB(Audio, DSP)                                                                                \
+    SUB(Audio, Sink)                                                                               \
+    CLS(Input)                                                                                     \
+    CLS(Network)                                                                                   \
+    CLS(Loader)                                                                                    \
+    CLS(CheatEngine)                                                                               \
+    CLS(Crypto)                                                                                    \
+    CLS(WebService)
+
+// GetClassName is a macro defined by Windows.h, grrr...
+const char* GetLogClassName(Class log_class) {
+    switch (log_class) {
+#define CLS(x)                                                                                     \
+    case Class::x:                                                                                 \
+        return #x;
+#define SUB(x, y)                                                                                  \
+    case Class::x##_##y:                                                                           \
+        return #x "." #y;
+        ALL_LOG_CLASSES()
+#undef CLS
+#undef SUB
+    case Class::Count:
+        break;
+    }
+    return "Invalid";
+}
+
+const char* GetLevelName(Level log_level) {
+#define LVL(x)                                                                                     \
+    case Level::x:                                                                                 \
+        return #x
+    switch (log_level) {
+        LVL(Trace);
+        LVL(Debug);
+        LVL(Info);
+        LVL(Warning);
+        LVL(Error);
+        LVL(Critical);
+    case Level::Count:
+        break;
+    }
+#undef LVL
+    return "Invalid";
+}
+
 Filter::Filter(Level default_level) {
    ResetAll(default_level);
 }
--- a/src/common/logging/filter.h
+++ b/src/common/logging/filter.h
@@ -5,12 +5,24 @@
 #pragma once

 #include <array>
+#include <chrono>
 #include <cstddef>
 #include <string_view>
 #include "common/logging/log.h"

 namespace Common::Log {

+/**
+ * Returns the name of the passed log class as a C-string. Subclasses are separated by periods
+ * instead of underscores as in the enumeration.
+ */
+const char* GetLogClassName(Class log_class);
+
+/**
+ * Returns the name of the passed log level as a C-string.
+ */
+const char* GetLevelName(Level log_level);
+
 /**
 * Implements a log message filter which allows different log classes to have different minimum
 * severity levels. The filter can be changed at runtime and can be parsed from a string to allow
--- a/src/common/logging/log.h
+++ b/src/common/logging/log.h
@@ -5,7 +5,7 @@
 #pragma once

 #include <fmt/format.h>
-#include "common/common_types.h"
+#include "common/logging/types.h"

 namespace Common::Log {

@@ -18,124 +18,6 @@ constexpr const char* TrimSourcePath(std::string_view source) {
    return source.data() + idx;
 }

-/// Specifies the severity or level of detail of the log message.
-enum class Level : u8 {
-    Trace,    ///< Extremely detailed and repetitive debugging information that is likely to
-              ///< pollute logs.
-    Debug,    ///< Less detailed debugging information.
-    Info,     ///< Status information from important points during execution.
-    Warning,  ///< Minor or potential problems found during execution of a task.
-    Error,    ///< Major problems found during execution of a task that prevent it from being
-              ///< completed.
-    Critical, ///< Major problems during execution that threaten the stability of the entire
-              ///< application.
-
-    Count ///< Total number of logging levels
-};
-
-typedef u8 ClassType;
-
-/**
- * Specifies the sub-system that generated the log message.
- *
- * @note If you add a new entry here, also add a corresponding one to `ALL_LOG_CLASSES` in
- * backend.cpp.
- */
-enum class Class : ClassType {
-    Log,               ///< Messages about the log system itself
-    Common,            ///< Library routines
-    Common_Filesystem, ///< Filesystem interface library
-    Common_Memory,     ///< Memory mapping and management functions
-    Core,              ///< LLE emulation core
-    Core_ARM,          ///< ARM CPU core
-    Core_Timing,       ///< CoreTiming functions
-    Config,            ///< Emulator configuration (including commandline)
-    Debug,             ///< Debugging tools
-    Debug_Emulated,    ///< Debug messages from the emulated programs
-    Debug_GPU,         ///< GPU debugging tools
-    Debug_Breakpoint,  ///< Logging breakpoints and watchpoints
-    Debug_GDBStub,     ///< GDB Stub
-    Kernel,            ///< The HLE implementation of the CTR kernel
-    Kernel_SVC,        ///< Kernel system calls
-    Service,           ///< HLE implementation of system services. Each major service
-                       ///< should have its own subclass.
-    Service_ACC,       ///< The ACC (Accounts) service
-    Service_AM,        ///< The AM (Applet manager) service
-    Service_AOC,       ///< The AOC (AddOn Content) service
-    Service_APM,       ///< The APM (Performance) service
-    Service_ARP,       ///< The ARP service
-    Service_Audio,     ///< The Audio (Audio control) service
-    Service_BCAT,      ///< The BCAT service
-    Service_BGTC,      ///< The BGTC (Background Task Controller) service
-    Service_BPC,       ///< The BPC service
-    Service_BTDRV,     ///< The Bluetooth driver service
-    Service_BTM,       ///< The BTM service
-    Service_Capture,   ///< The capture service
-    Service_ERPT,      ///< The error reporting service
-    Service_ETicket,   ///< The ETicket service
-    Service_EUPLD,     ///< The error upload service
-    Service_Fatal,     ///< The Fatal service
-    Service_FGM,       ///< The FGM service
-    Service_Friend,    ///< The friend service
-    Service_FS,        ///< The FS (Filesystem) service
-    Service_GRC,       ///< The game recording service
-    Service_HID,       ///< The HID (Human interface device) service
-    Service_IRS,       ///< The IRS service
-    Service_LBL,       ///< The LBL (LCD backlight) service
-    Service_LDN,       ///< The LDN (Local domain network) service
-    Service_LDR,       ///< The loader service
-    Service_LM,        ///< The LM (Logger) service
-    Service_Migration, ///< The migration service
-    Service_Mii,       ///< The Mii service
-    Service_MM,        ///< The MM (Multimedia) service
-    Service_NCM,       ///< The NCM service
-    Service_NFC,       ///< The NFC (Near-field communication) service
-    Service_NFP,       ///< The NFP service
-    Service_NIFM,      ///< The NIFM (Network interface) service
-    Service_NIM,       ///< The NIM service
-    Service_NPNS,      ///< The NPNS service
-    Service_NS,        ///< The NS services
-    Service_NVDRV,     ///< The NVDRV (Nvidia driver) service
-    Service_OLSC,      ///< The OLSC service
-    Service_PCIE,      ///< The PCIe service
-    Service_PCTL,      ///< The PCTL (Parental control) service
-    Service_PCV,       ///< The PCV service
-    Service_PM,        ///< The PM service
-    Service_PREPO,     ///< The PREPO (Play report) service
-    Service_PSC,       ///< The PSC service
-    Service_PSM,       ///< The PSM service
-    Service_SET,       ///< The SET (Settings) service
-    Service_SM,        ///< The SM (Service manager) service
-    Service_SPL,       ///< The SPL service
-    Service_SSL,       ///< The SSL service
-    Service_TCAP,      ///< The TCAP service.
-    Service_Time,      ///< The time service
-    Service_USB,       ///< The USB (Universal Serial Bus) service
-    Service_VI,        ///< The VI (Video interface) service
-    Service_WLAN,      ///< The WLAN (Wireless local area network) service
-    HW,                ///< Low-level hardware emulation
-    HW_Memory,         ///< Memory-map and address translation
-    HW_LCD,            ///< LCD register emulation
-    HW_GPU,            ///< GPU control emulation
-    HW_AES,            ///< AES engine emulation
-    IPC,               ///< IPC interface
-    Frontend,          ///< Emulator UI
-    Render,            ///< Emulator video output and hardware acceleration
-    Render_Software,   ///< Software renderer backend
-    Render_OpenGL,     ///< OpenGL backend
-    Render_Vulkan,     ///< Vulkan backend
-    Audio,             ///< Audio emulation
-    Audio_DSP,         ///< The HLE implementation of the DSP
-    Audio_Sink,        ///< Emulator audio output backend
-    Loader,            ///< ROM loader
-    CheatEngine,       ///< Memory manipulation and engine VM functions
-    Crypto,            ///< Cryptographic engine/functions
-    Input,             ///< Input emulation
-    Network,           ///< Network emulation
-    WebService,        ///< Interface to yuzu Web Services
-    Count              ///< Total number of logging classes
-};
-
 /// Logs a message to the global logger, using fmt
 void FmtLogMessageImpl(Class log_class, Level log_level, const char* filename,
                       unsigned int line_num, const char* function, const char* format,
--- a/src/common/logging/text_formatter.cpp
+++ b/src/common/logging/text_formatter.cpp
@@ -11,7 +11,7 @@

 #include "common/assert.h"
 #include "common/common_funcs.h"
-#include "common/logging/backend.h"
+#include "common/logging/filter.h"
 #include "common/logging/log.h"
 #include "common/logging/text_formatter.h"
 #include "common/string_util.h"
--- a/src/common/logging/types.h
+++ b/src/common/logging/types.h
@@ -0,0 +1,144 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <chrono>
+
+#include "common/common_types.h"
+
+namespace Common::Log {
+
+/// Specifies the severity or level of detail of the log message.
+enum class Level : u8 {
+    Trace,    ///< Extremely detailed and repetitive debugging information that is likely to
+              ///< pollute logs.
+    Debug,    ///< Less detailed debugging information.
+    Info,     ///< Status information from important points during execution.
+    Warning,  ///< Minor or potential problems found during execution of a task.
+    Error,    ///< Major problems found during execution of a task that prevent it from being
+              ///< completed.
+    Critical, ///< Major problems during execution that threaten the stability of the entire
+              ///< application.
+
+    Count ///< Total number of logging levels
+};
+
+/**
+ * Specifies the sub-system that generated the log message.
+ *
+ * @note If you add a new entry here, also add a corresponding one to `ALL_LOG_CLASSES` in
+ * filter.cpp.
+ */
+enum class Class : u8 {
+    Log,               ///< Messages about the log system itself
+    Common,            ///< Library routines
+    Common_Filesystem, ///< Filesystem interface library
+    Common_Memory,     ///< Memory mapping and management functions
+    Core,              ///< LLE emulation core
+    Core_ARM,          ///< ARM CPU core
+    Core_Timing,       ///< CoreTiming functions
+    Config,            ///< Emulator configuration (including commandline)
+    Debug,             ///< Debugging tools
+    Debug_Emulated,    ///< Debug messages from the emulated programs
+    Debug_GPU,         ///< GPU debugging tools
+    Debug_Breakpoint,  ///< Logging breakpoints and watchpoints
+    Debug_GDBStub,     ///< GDB Stub
+    Kernel,            ///< The HLE implementation of the CTR kernel
+    Kernel_SVC,        ///< Kernel system calls
+    Service,           ///< HLE implementation of system services. Each major service
+                       ///< should have its own subclass.
+    Service_ACC,       ///< The ACC (Accounts) service
+    Service_AM,        ///< The AM (Applet manager) service
+    Service_AOC,       ///< The AOC (AddOn Content) service
+    Service_APM,       ///< The APM (Performance) service
+    Service_ARP,       ///< The ARP service
+    Service_Audio,     ///< The Audio (Audio control) service
+    Service_BCAT,      ///< The BCAT service
+    Service_BGTC,      ///< The BGTC (Background Task Controller) service
+    Service_BPC,       ///< The BPC service
+    Service_BTDRV,     ///< The Bluetooth driver service
+    Service_BTM,       ///< The BTM service
+    Service_Capture,   ///< The capture service
+    Service_ERPT,      ///< The error reporting service
+    Service_ETicket,   ///< The ETicket service
+    Service_EUPLD,     ///< The error upload service
+    Service_Fatal,     ///< The Fatal service
+    Service_FGM,       ///< The FGM service
+    Service_Friend,    ///< The friend service
+    Service_FS,        ///< The FS (Filesystem) service
+    Service_GRC,       ///< The game recording service
+    Service_HID,       ///< The HID (Human interface device) service
+    Service_IRS,       ///< The IRS service
+    Service_LBL,       ///< The LBL (LCD backlight) service
+    Service_LDN,       ///< The LDN (Local domain network) service
+    Service_LDR,       ///< The loader service
+    Service_LM,        ///< The LM (Logger) service
+    Service_Migration, ///< The migration service
+    Service_Mii,       ///< The Mii service
+    Service_MM,        ///< The MM (Multimedia) service
+    Service_NCM,       ///< The NCM service
+    Service_NFC,       ///< The NFC (Near-field communication) service
+    Service_NFP,       ///< The NFP service
+    Service_NIFM,      ///< The NIFM (Network interface) service
+    Service_NIM,       ///< The NIM service
+    Service_NPNS,      ///< The NPNS service
+    Service_NS,        ///< The NS services
+    Service_NVDRV,     ///< The NVDRV (Nvidia driver) service
+    Service_OLSC,      ///< The OLSC service
+    Service_PCIE,      ///< The PCIe service
+    Service_PCTL,      ///< The PCTL (Parental control) service
+    Service_PCV,       ///< The PCV service
+    Service_PM,        ///< The PM service
+    Service_PREPO,     ///< The PREPO (Play report) service
+    Service_PSC,       ///< The PSC service
+    Service_PSM,       ///< The PSM service
+    Service_SET,       ///< The SET (Settings) service
+    Service_SM,        ///< The SM (Service manager) service
+    Service_SPL,       ///< The SPL service
+    Service_SSL,       ///< The SSL service
+    Service_TCAP,      ///< The TCAP service.
+    Service_Time,      ///< The time service
+    Service_USB,       ///< The USB (Universal Serial Bus) service
+    Service_VI,        ///< The VI (Video interface) service
+    Service_WLAN,      ///< The WLAN (Wireless local area network) service
+    HW,                ///< Low-level hardware emulation
+    HW_Memory,         ///< Memory-map and address translation
+    HW_LCD,            ///< LCD register emulation
+    HW_GPU,            ///< GPU control emulation
+    HW_AES,            ///< AES engine emulation
+    IPC,               ///< IPC interface
+    Frontend,          ///< Emulator UI
+    Render,            ///< Emulator video output and hardware acceleration
+    Render_Software,   ///< Software renderer backend
+    Render_OpenGL,     ///< OpenGL backend
+    Render_Vulkan,     ///< Vulkan backend
+    Audio,             ///< Audio emulation
+    Audio_DSP,         ///< The HLE implementation of the DSP
+    Audio_Sink,        ///< Emulator audio output backend
+    Loader,            ///< ROM loader
+    CheatEngine,       ///< Memory manipulation and engine VM functions
+    Crypto,            ///< Cryptographic engine/functions
+    Input,             ///< Input emulation
+    Network,           ///< Network emulation
+    WebService,        ///< Interface to yuzu Web Services
+    Count              ///< Total number of logging classes
+};
+
+/**
+ * A log entry. Log entries are store in a structured format to permit more varied output
+ * formatting on different frontends, as well as facilitating filtering and aggregation.
+ */
+struct Entry {
+    std::chrono::microseconds timestamp;
+    Class log_class{};
+    Level log_level{};
+    const char* filename = nullptr;
+    unsigned int line_num = 0;
+    std::string function;
+    std::string message;
+    bool final_entry = false;
+};
+
+} // namespace Common::Log
--- a/src/common/page_table.h
+++ b/src/common/page_table.h
@@ -111,6 +111,8 @@ struct PageTable {
    VirtualBuffer<u64> backing_addr;

    size_t current_address_space_width_in_bits;
+
+    u8* fastmem_arena;
 };

 } // namespace Common
--- a/src/common/settings.cpp
+++ b/src/common/settings.cpp
@@ -55,9 +55,11 @@ void LogSettings() {
    log_setting("Renderer_UseAsynchronousGpuEmulation",
                values.use_asynchronous_gpu_emulation.GetValue());
    log_setting("Renderer_UseNvdecEmulation", values.use_nvdec_emulation.GetValue());
+    log_setting("Renderer_AccelerateASTC", values.accelerate_astc.GetValue());
    log_setting("Renderer_UseVsync", values.use_vsync.GetValue());
    log_setting("Renderer_UseAssemblyShaders", values.use_assembly_shaders.GetValue());
    log_setting("Renderer_UseAsynchronousShaders", values.use_asynchronous_shaders.GetValue());
+    log_setting("Renderer_UseGarbageCollection", values.use_caches_gc.GetValue());
    log_setting("Renderer_AnisotropicFilteringLevel", values.max_anisotropy.GetValue());
    log_setting("Audio_OutputEngine", values.sink_id);
    log_setting("Audio_EnableAudioStretching", values.enable_audio_stretching.GetValue());
@@ -90,6 +92,13 @@ bool IsGPULevelHigh() {
           values.gpu_accuracy.GetValue() == GPUAccuracy::High;
 }

+bool IsFastmemEnabled() {
+    if (values.cpu_accuracy.GetValue() == CPUAccuracy::DebugMode) {
+        return values.cpuopt_fastmem;
+    }
+    return true;
+}
+
 float Volume() {
    if (values.audio_muted) {
        return 0.0f;
@@ -114,7 +123,9 @@ void RestoreGlobalState(bool is_powered_on) {
    values.cpu_accuracy.SetGlobal(true);
    values.cpuopt_unsafe_unfuse_fma.SetGlobal(true);
    values.cpuopt_unsafe_reduce_fp_error.SetGlobal(true);
+    values.cpuopt_unsafe_ignore_standard_fpcr.SetGlobal(true);
    values.cpuopt_unsafe_inaccurate_nan.SetGlobal(true);
+    values.cpuopt_unsafe_fastmem_check.SetGlobal(true);

    // Renderer
    values.renderer_backend.SetGlobal(true);
@@ -127,10 +138,12 @@ void RestoreGlobalState(bool is_powered_on) {
    values.gpu_accuracy.SetGlobal(true);
    values.use_asynchronous_gpu_emulation.SetGlobal(true);
    values.use_nvdec_emulation.SetGlobal(true);
+    values.accelerate_astc.SetGlobal(true);
    values.use_vsync.SetGlobal(true);
    values.use_assembly_shaders.SetGlobal(true);
    values.use_asynchronous_shaders.SetGlobal(true);
    values.use_fast_gpu_time.SetGlobal(true);
+    values.use_caches_gc.SetGlobal(true);
    values.bg_red.SetGlobal(true);
    values.bg_green.SetGlobal(true);
    values.bg_blue.SetGlobal(true);
--- a/src/common/settings.h
+++ b/src/common/settings.h
@@ -125,10 +125,13 @@ struct Values {
    bool cpuopt_const_prop;
    bool cpuopt_misc_ir;
    bool cpuopt_reduce_misalign_checks;
+    bool cpuopt_fastmem;

    Setting<bool> cpuopt_unsafe_unfuse_fma;
    Setting<bool> cpuopt_unsafe_reduce_fp_error;
+    Setting<bool> cpuopt_unsafe_ignore_standard_fpcr;
    Setting<bool> cpuopt_unsafe_inaccurate_nan;
+    Setting<bool> cpuopt_unsafe_fastmem_check;

    // Renderer
    Setting<RendererBackend> renderer_backend;
@@ -145,10 +148,13 @@ struct Values {
    Setting<GPUAccuracy> gpu_accuracy;
    Setting<bool> use_asynchronous_gpu_emulation;
    Setting<bool> use_nvdec_emulation;
+    Setting<bool> accelerate_astc;
    Setting<bool> use_vsync;
+    Setting<bool> disable_fps_limit;
    Setting<bool> use_assembly_shaders;
    Setting<bool> use_asynchronous_shaders;
    Setting<bool> use_fast_gpu_time;
+    Setting<bool> use_caches_gc;

    Setting<float> bg_red;
    Setting<float> bg_green;
@@ -216,6 +222,7 @@ struct Values {
    std::string program_args;
    bool dump_exefs;
    bool dump_nso;
+    bool enable_fs_access_log;
    bool reporting_services;
    bool quest_flag;
    bool disable_macro_jit;
@@ -249,6 +256,8 @@ void SetConfiguringGlobal(bool is_global);
 bool IsGPULevelExtreme();
 bool IsGPULevelHigh();

+bool IsFastmemEnabled();
+
 float Volume();

 std::string GetTimeZoneString();
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -139,6 +139,7 @@ add_library(core STATIC
    frontend/input.h
    hardware_interrupt_manager.cpp
    hardware_interrupt_manager.h
+    hle/api_version.h
    hle/ipc.h
    hle/ipc_helpers.h
    hle/kernel/board/nintendo/nx/k_system_control.cpp
@@ -550,6 +551,8 @@ add_library(core STATIC
    hle/service/spl/module.h
    hle/service/spl/spl.cpp
    hle/service/spl/spl.h
+    hle/service/spl/spl_results.h
+    hle/service/spl/spl_types.h
    hle/service/ssl/ssl.cpp
    hle/service/ssl/ssl.h
    hle/service/time/clock_types.h
--- a/src/core/arm/dynarmic/arm_dynarmic_32.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic_32.cpp
@@ -8,6 +8,7 @@
 #include <dynarmic/interface/A32/config.h>
 #include <dynarmic/interface/A32/context.h>
 #include "common/assert.h"
+#include "common/literals.h"
 #include "common/logging/log.h"
 #include "common/page_table.h"
 #include "common/settings.h"
@@ -22,6 +23,8 @@

 namespace Core {

+using namespace Common::Literals;
+
 class DynarmicCallbacks32 : public Dynarmic::A32::UserCallbacks {
 public:
    explicit DynarmicCallbacks32(ARM_Dynarmic_32& parent_)
@@ -128,6 +131,7 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
    if (page_table) {
        config.page_table = reinterpret_cast<std::array<std::uint8_t*, NUM_PAGE_TABLE_ENTRIES>*>(
            page_table->pointers.data());
+        config.fastmem_pointer = page_table->fastmem_arena;
    }
    config.absolute_offset_page_table = true;
    config.page_table_pointer_mask_bits = Common::PageTable::ATTRIBUTE_BITS;
@@ -142,8 +146,8 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
    config.wall_clock_cntpct = uses_wall_clock;

    // Code cache size
-    config.code_cache_size = 512 * 1024 * 1024;
-    config.far_code_offset = 256 * 1024 * 1024;
+    config.code_cache_size = 512_MiB;
+    config.far_code_offset = 400_MiB;

    // Safe optimizations
    if (Settings::values.cpu_accuracy.GetValue() == Settings::CPUAccuracy::DebugMode) {
@@ -171,6 +175,9 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
        if (!Settings::values.cpuopt_reduce_misalign_checks) {
            config.only_detect_misalignment_via_page_table_on_page_boundary = false;
        }
+        if (!Settings::values.cpuopt_fastmem) {
+            config.fastmem_pointer = nullptr;
+        }
    }

    // Unsafe optimizations
@@ -182,6 +189,9 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
        if (Settings::values.cpuopt_unsafe_reduce_fp_error.GetValue()) {
            config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_ReducedErrorFP;
        }
+        if (Settings::values.cpuopt_unsafe_ignore_standard_fpcr.GetValue()) {
+            config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_IgnoreStandardFPCRValue;
+        }
        if (Settings::values.cpuopt_unsafe_inaccurate_nan.GetValue()) {
            config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_InaccurateNaN;
        }
--- a/src/core/arm/dynarmic/arm_dynarmic_64.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic_64.cpp
@@ -7,6 +7,7 @@
 #include <dynarmic/interface/A64/a64.h>
 #include <dynarmic/interface/A64/config.h>
 #include "common/assert.h"
+#include "common/literals.h"
 #include "common/logging/log.h"
 #include "common/page_table.h"
 #include "common/settings.h"
@@ -24,6 +25,7 @@
 namespace Core {

 using Vector = Dynarmic::A64::Vector;
+using namespace Common::Literals;

 class DynarmicCallbacks64 : public Dynarmic::A64::UserCallbacks {
 public:
@@ -160,6 +162,10 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
        config.absolute_offset_page_table = true;
        config.detect_misaligned_access_via_page_table = 16 | 32 | 64 | 128;
        config.only_detect_misalignment_via_page_table_on_page_boundary = true;
+
+        config.fastmem_pointer = page_table->fastmem_arena;
+        config.fastmem_address_space_bits = address_space_bits;
+        config.silently_mirror_fastmem = false;
    }

    // Multi-process state
@@ -180,8 +186,8 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
    config.wall_clock_cntpct = uses_wall_clock;

    // Code cache size
-    config.code_cache_size = 512 * 1024 * 1024;
-    config.far_code_offset = 256 * 1024 * 1024;
+    config.code_cache_size = 512_MiB;
+    config.far_code_offset = 400_MiB;

    // Safe optimizations
    if (Settings::values.cpu_accuracy.GetValue() == Settings::CPUAccuracy::DebugMode) {
@@ -209,6 +215,9 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
        if (!Settings::values.cpuopt_reduce_misalign_checks) {
            config.only_detect_misalignment_via_page_table_on_page_boundary = false;
        }
+        if (!Settings::values.cpuopt_fastmem) {
+            config.fastmem_pointer = nullptr;
+        }
    }

    // Unsafe optimizations
@@ -223,6 +232,9 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
        if (Settings::values.cpuopt_unsafe_inaccurate_nan.GetValue()) {
            config.optimizations |= Dynarmic::OptimizationFlag::Unsafe_InaccurateNaN;
        }
+        if (Settings::values.cpuopt_unsafe_fastmem_check.GetValue()) {
+            config.fastmem_address_space_bits = 64;
+        }
    }

    return std::make_shared<Dynarmic::A64::Jit>(config);
--- a/src/core/core.cpp
+++ b/src/core/core.cpp
@@ -3,6 +3,7 @@
 // Refer to the license.txt file included.

 #include <array>
+#include <atomic>
 #include <memory>
 #include <utility>

@@ -377,7 +378,7 @@ struct System::Impl {
    std::unique_ptr<Core::DeviceMemory> device_memory;
    Core::Memory::Memory memory;
    CpuManager cpu_manager;
-    bool is_powered_on = false;
+    std::atomic_bool is_powered_on{};
    bool exit_lock = false;

    Reporter reporter;
@@ -463,7 +464,7 @@ System::ResultStatus System::Load(Frontend::EmuWindow& emu_window, const std::st
 }

 bool System::IsPoweredOn() const {
-    return impl->is_powered_on;
+    return impl->is_powered_on.load(std::memory_order::relaxed);
 }

 void System::PrepareReschedule() {
--- a/src/core/crypto/key_manager.cpp
+++ b/src/core/crypto/key_manager.cpp
@@ -835,7 +835,7 @@ void KeyManager::SetKey(S128KeyType id, Key128 key, u64 field1, u64 field2) {
            "key_area_key_ocean_{:02X}",
            "key_area_key_system_{:02X}",
        };
-        WriteKeyToFile(category, fmt::format(kak_names.at(field2), field1), key);
+        WriteKeyToFile(category, fmt::format(fmt::runtime(kak_names.at(field2)), field1), key);
    } else if (id == S128KeyType::Master) {
        WriteKeyToFile(category, fmt::format("master_key_{:02X}", field1), key);
    } else if (id == S128KeyType::Package1) {
--- a/src/core/device_memory.cpp
+++ b/src/core/device_memory.cpp
@@ -6,7 +6,7 @@

 namespace Core {

-DeviceMemory::DeviceMemory() : buffer{DramMemoryMap::Size} {}
+DeviceMemory::DeviceMemory() : buffer{DramMemoryMap::Size, 1ULL << 39} {}
 DeviceMemory::~DeviceMemory() = default;

 } // namespace Core
--- a/src/core/device_memory.h
+++ b/src/core/device_memory.h
@@ -5,7 +5,7 @@
 #pragma once

 #include "common/common_types.h"
-#include "common/virtual_buffer.h"
+#include "common/host_memory.h"

 namespace Core {

@@ -21,27 +21,30 @@ enum : u64 {
 };
 }; // namespace DramMemoryMap

-class DeviceMemory : NonCopyable {
+class DeviceMemory {
 public:
    explicit DeviceMemory();
    ~DeviceMemory();

+    DeviceMemory& operator=(const DeviceMemory&) = delete;
+    DeviceMemory(const DeviceMemory&) = delete;
+
    template <typename T>
    PAddr GetPhysicalAddr(const T* ptr) const {
-        return (reinterpret_cast<uintptr_t>(ptr) - reinterpret_cast<uintptr_t>(buffer.data())) +
+        return (reinterpret_cast<uintptr_t>(ptr) -
+                reinterpret_cast<uintptr_t>(buffer.BackingBasePointer())) +
               DramMemoryMap::Base;
    }

    u8* GetPointer(PAddr addr) {
-        return buffer.data() + (addr - DramMemoryMap::Base);
+        return buffer.BackingBasePointer() + (addr - DramMemoryMap::Base);
    }

    const u8* GetPointer(PAddr addr) const {
-        return buffer.data() + (addr - DramMemoryMap::Base);
+        return buffer.BackingBasePointer() + (addr - DramMemoryMap::Base);
    }

-private:
-    Common::VirtualBuffer<u8> buffer;
+    Common::HostMemory buffer;
 };

 } // namespace Core
--- a/src/core/file_sys/patch_manager.cpp
+++ b/src/core/file_sys/patch_manager.cpp
@@ -345,8 +345,10 @@ std::vector<Core::Memory::CheatEntry> PatchManager::CreateCheatList(
 static void ApplyLayeredFS(VirtualFile& romfs, u64 title_id, ContentRecordType type,
                           const Service::FileSystem::FileSystemController& fs_controller) {
    const auto load_dir = fs_controller.GetModificationLoadRoot(title_id);
+    const auto sdmc_load_dir = fs_controller.GetSDMCModificationLoadRoot(title_id);
    if ((type != ContentRecordType::Program && type != ContentRecordType::Data) ||
-        load_dir == nullptr || load_dir->GetSize() <= 0) {
+        ((load_dir == nullptr || load_dir->GetSize() <= 0) &&
+         (sdmc_load_dir == nullptr || sdmc_load_dir->GetSize() <= 0))) {
        return;
    }

@@ -356,7 +358,10 @@ static void ApplyLayeredFS(VirtualFile& romfs, u64 title_id, ContentRecordType t
    }

    const auto& disabled = Settings::values.disabled_addons[title_id];
-    auto patch_dirs = load_dir->GetSubdirectories();
+    std::vector<VirtualDir> patch_dirs = load_dir->GetSubdirectories();
+    if (std::find(disabled.cbegin(), disabled.cend(), "SDMC") == disabled.cend()) {
+        patch_dirs.push_back(sdmc_load_dir);
+    }
    std::sort(patch_dirs.begin(), patch_dirs.end(),
              [](const VirtualDir& l, const VirtualDir& r) { return l->GetName() < r->GetName(); });

@@ -402,7 +407,7 @@ static void ApplyLayeredFS(VirtualFile& romfs, u64 title_id, ContentRecordType t
 }

 VirtualFile PatchManager::PatchRomFS(VirtualFile romfs, u64 ivfc_offset, ContentRecordType type,
-                                     VirtualFile update_raw) const {
+                                     VirtualFile update_raw, bool apply_layeredfs) const {
    const auto log_string = fmt::format("Patching RomFS for title_id={:016X}, type={:02X}",
                                        title_id, static_cast<u8>(type));

@@ -442,7 +447,9 @@ VirtualFile PatchManager::PatchRomFS(VirtualFile romfs, u64 ivfc_offset, Content
    }

    // LayeredFS
-    ApplyLayeredFS(romfs, title_id, type, fs_controller);
+    if (apply_layeredfs) {
+        ApplyLayeredFS(romfs, title_id, type, fs_controller);
+    }

    return romfs;
 }
@@ -524,6 +531,15 @@ PatchManager::PatchVersionNames PatchManager::GetPatchVersionNames(VirtualFile u
        }
    }

+    // SDMC mod directory (RomFS LayeredFS)
+    const auto sdmc_mod_dir = fs_controller.GetSDMCModificationLoadRoot(title_id);
+    if (sdmc_mod_dir != nullptr && sdmc_mod_dir->GetSize() > 0 &&
+        IsDirValidAndNonEmpty(FindSubdirectoryCaseless(sdmc_mod_dir, "romfs"))) {
+        const auto mod_disabled =
+            std::find(disabled.begin(), disabled.end(), "SDMC") != disabled.end();
+        out.insert_or_assign(mod_disabled ? "[D] SDMC" : "SDMC", "LayeredFS");
+    }
+
    // DLC
    const auto dlc_entries =
        content_provider.ListEntriesFilter(TitleType::AOC, ContentRecordType::Data);
--- a/src/core/file_sys/patch_manager.h
+++ b/src/core/file_sys/patch_manager.h
@@ -64,7 +64,8 @@ public:
    // - LayeredFS
    [[nodiscard]] VirtualFile PatchRomFS(VirtualFile base, u64 ivfc_offset,
                                         ContentRecordType type = ContentRecordType::Program,
-                                         VirtualFile update_raw = nullptr) const;
+                                         VirtualFile update_raw = nullptr,
+                                         bool apply_layeredfs = true) const;

    // Returns a vector of pairs between patch names and patch versions.
    // i.e. Update 3.2.2 will return {"Update", "3.2.2"}
--- a/src/core/file_sys/program_metadata.cpp
+++ b/src/core/file_sys/program_metadata.cpp
@@ -150,7 +150,9 @@ void ProgramMetadata::Print() const {
    LOG_DEBUG(Service_FS, " > Is Retail:           {}", acid_header.is_retail ? "YES" : "NO");
    LOG_DEBUG(Service_FS, "Title ID Min:           0x{:016X}", acid_header.title_id_min);
    LOG_DEBUG(Service_FS, "Title ID Max:           0x{:016X}", acid_header.title_id_max);
-    LOG_DEBUG(Service_FS, "Filesystem Access:      0x{:016X}\n", acid_file_access.permissions);
+    u64_le permissions_l; // local copy to fix alignment error
+    std::memcpy(&permissions_l, &acid_file_access.permissions, sizeof(permissions_l));
+    LOG_DEBUG(Service_FS, "Filesystem Access:      0x{:016X}\n", permissions_l);

    // Begin ACI0 printing (actual perms, unsigned)
    LOG_DEBUG(Service_FS, "Magic:                  {:.4}", aci_header.magic.data());
--- a/src/core/file_sys/registered_cache.cpp
+++ b/src/core/file_sys/registered_cache.cpp
@@ -58,14 +58,17 @@ static bool FollowsNcaIdFormat(std::string_view name) {

 static std::string GetRelativePathFromNcaID(const std::array<u8, 16>& nca_id, bool second_hex_upper,
                                            bool within_two_digit, bool cnmt_suffix) {
-    if (!within_two_digit)
-        return fmt::format(cnmt_suffix ? "{}.cnmt.nca" : "/{}.nca",
-                           Common::HexToString(nca_id, second_hex_upper));
+    if (!within_two_digit) {
+        const auto format_str = fmt::runtime(cnmt_suffix ? "{}.cnmt.nca" : "/{}.nca");
+        return fmt::format(format_str, Common::HexToString(nca_id, second_hex_upper));
+    }

    Core::Crypto::SHA256Hash hash{};
    mbedtls_sha256_ret(nca_id.data(), nca_id.size(), hash.data(), 0);
-    return fmt::format(cnmt_suffix ? "/000000{:02X}/{}.cnmt.nca" : "/000000{:02X}/{}.nca", hash[0],
-                       Common::HexToString(nca_id, second_hex_upper));
+
+    const auto format_str =
+        fmt::runtime(cnmt_suffix ? "/000000{:02X}/{}.cnmt.nca" : "/000000{:02X}/{}.nca");
+    return fmt::format(format_str, hash[0], Common::HexToString(nca_id, second_hex_upper));
 }

 static std::string GetCNMTName(TitleType type, u64 title_id) {
--- a/src/core/file_sys/romfs_factory.cpp
+++ b/src/core/file_sys/romfs_factory.cpp
@@ -53,7 +53,7 @@ ResultVal<VirtualFile> RomFSFactory::OpenPatchedRomFS(u64 title_id, ContentRecor

    if (nca == nullptr) {
        // TODO: Find the right error code to use here
-        return RESULT_UNKNOWN;
+        return ResultUnknown;
    }

    const PatchManager patch_manager{title_id, filesystem_controller, content_provider};
@@ -74,13 +74,13 @@ ResultVal<VirtualFile> RomFSFactory::Open(u64 title_id, StorageId storage,
    const std::shared_ptr<NCA> res = GetEntry(title_id, storage, type);
    if (res == nullptr) {
        // TODO(DarkLordZach): Find the right error code to use here
-        return RESULT_UNKNOWN;
+        return ResultUnknown;
    }

    const auto romfs = res->GetRomFS();
    if (romfs == nullptr) {
        // TODO(DarkLordZach): Find the right error code to use here
-        return RESULT_UNKNOWN;
+        return ResultUnknown;
    }

    return MakeResult<VirtualFile>(romfs);
--- a/src/core/file_sys/savedata_factory.cpp
+++ b/src/core/file_sys/savedata_factory.cpp
@@ -91,7 +91,7 @@ ResultVal<VirtualDir> SaveDataFactory::Create(SaveDataSpaceId space,
    // Return an error if the save data doesn't actually exist.
    if (out == nullptr) {
        // TODO(DarkLordZach): Find out correct error code.
-        return RESULT_UNKNOWN;
+        return ResultUnknown;
    }

    return MakeResult<VirtualDir>(std::move(out));
@@ -105,14 +105,14 @@ ResultVal<VirtualDir> SaveDataFactory::Open(SaveDataSpaceId space,

    auto out = dir->GetDirectoryRelative(save_directory);

-    if (out == nullptr && ShouldSaveDataBeAutomaticallyCreated(space, meta)) {
+    if (out == nullptr && (ShouldSaveDataBeAutomaticallyCreated(space, meta) && auto_create)) {
        return Create(space, meta);
    }

    // Return an error if the save data doesn't actually exist.
    if (out == nullptr) {
        // TODO(Subv): Find out correct error code.
-        return RESULT_UNKNOWN;
+        return ResultUnknown;
    }

    return MakeResult<VirtualDir>(std::move(out));
@@ -199,4 +199,8 @@ void SaveDataFactory::WriteSaveDataSize(SaveDataType type, u64 title_id, u128 us
    size_file->WriteObject(new_value);
 }

+void SaveDataFactory::SetAutoCreate(bool state) {
+    auto_create = state;
+}
+
 } // namespace FileSys
--- a/src/core/file_sys/savedata_factory.h
+++ b/src/core/file_sys/savedata_factory.h
@@ -104,9 +104,12 @@ public:
    void WriteSaveDataSize(SaveDataType type, u64 title_id, u128 user_id,
                           SaveDataSize new_value) const;

+    void SetAutoCreate(bool state);
+
 private:
    VirtualDir dir;
    Core::System& system;
+    bool auto_create{true};
 };

 } // namespace FileSys
--- a/src/core/file_sys/sdmc_factory.cpp
+++ b/src/core/file_sys/sdmc_factory.cpp
@@ -12,23 +12,32 @@ namespace FileSys {

 constexpr u64 SDMC_TOTAL_SIZE = 0x10000000000; // 1 TiB

-SDMCFactory::SDMCFactory(VirtualDir dir_)
-    : dir(std::move(dir_)), contents(std::make_unique<RegisteredCache>(
-                                GetOrCreateDirectoryRelative(dir, "/Nintendo/Contents/registered"),
-                                [](const VirtualFile& file, const NcaID& id) {
-                                    return NAX{file, id}.GetDecrypted();
-                                })),
+SDMCFactory::SDMCFactory(VirtualDir sd_dir_, VirtualDir sd_mod_dir_)
+    : sd_dir(std::move(sd_dir_)), sd_mod_dir(std::move(sd_mod_dir_)),
+      contents(std::make_unique<RegisteredCache>(
+          GetOrCreateDirectoryRelative(sd_dir, "/Nintendo/Contents/registered"),
+          [](const VirtualFile& file, const NcaID& id) {
+              return NAX{file, id}.GetDecrypted();
+          })),
      placeholder(std::make_unique<PlaceholderCache>(
-          GetOrCreateDirectoryRelative(dir, "/Nintendo/Contents/placehld"))) {}
+          GetOrCreateDirectoryRelative(sd_dir, "/Nintendo/Contents/placehld"))) {}

 SDMCFactory::~SDMCFactory() = default;

 ResultVal<VirtualDir> SDMCFactory::Open() const {
-    return MakeResult<VirtualDir>(dir);
+    return MakeResult<VirtualDir>(sd_dir);
+}
+
+VirtualDir SDMCFactory::GetSDMCModificationLoadRoot(u64 title_id) const {
+    // LayeredFS doesn't work on updates and title id-less homebrew
+    if (title_id == 0 || (title_id & 0xFFF) == 0x800) {
+        return nullptr;
+    }
+    return GetOrCreateDirectoryRelative(sd_mod_dir, fmt::format("/{:016X}", title_id));
 }

 VirtualDir SDMCFactory::GetSDMCContentDirectory() const {
-    return GetOrCreateDirectoryRelative(dir, "/Nintendo/Contents");
+    return GetOrCreateDirectoryRelative(sd_dir, "/Nintendo/Contents");
 }

 RegisteredCache* SDMCFactory::GetSDMCContents() const {
@@ -40,11 +49,11 @@ PlaceholderCache* SDMCFactory::GetSDMCPlaceholder() const {
 }

 VirtualDir SDMCFactory::GetImageDirectory() const {
-    return GetOrCreateDirectoryRelative(dir, "/Nintendo/Album");
+    return GetOrCreateDirectoryRelative(sd_dir, "/Nintendo/Album");
 }

 u64 SDMCFactory::GetSDMCFreeSpace() const {
-    return GetSDMCTotalSpace() - dir->GetSize();
+    return GetSDMCTotalSpace() - sd_dir->GetSize();
 }

 u64 SDMCFactory::GetSDMCTotalSpace() const {
--- a/src/core/file_sys/sdmc_factory.h
+++ b/src/core/file_sys/sdmc_factory.h
@@ -16,11 +16,12 @@ class PlaceholderCache;
 /// File system interface to the SDCard archive
 class SDMCFactory {
 public:
-    explicit SDMCFactory(VirtualDir dir);
+    explicit SDMCFactory(VirtualDir sd_dir_, VirtualDir sd_mod_dir_);
    ~SDMCFactory();

    ResultVal<VirtualDir> Open() const;

+    VirtualDir GetSDMCModificationLoadRoot(u64 title_id) const;
    VirtualDir GetSDMCContentDirectory() const;

    RegisteredCache* GetSDMCContents() const;
@@ -32,7 +33,8 @@ public:
    u64 GetSDMCTotalSpace() const;

 private:
-    VirtualDir dir;
+    VirtualDir sd_dir;
+    VirtualDir sd_mod_dir;

    std::unique_ptr<RegisteredCache> contents;
    std::unique_ptr<PlaceholderCache> placeholder;
--- a/src/core/file_sys/system_archive/system_version.cpp
+++ b/src/core/file_sys/system_archive/system_version.cpp
@@ -4,47 +4,29 @@

 #include "core/file_sys/system_archive/system_version.h"
 #include "core/file_sys/vfs_vector.h"
+#include "core/hle/api_version.h"

 namespace FileSys::SystemArchive {

-namespace SystemVersionData {
-
-// This section should reflect the best system version to describe yuzu's HLE api.
-// TODO(DarkLordZach): Update when HLE gets better.
-
-constexpr u8 VERSION_MAJOR = 11;
-constexpr u8 VERSION_MINOR = 0;
-constexpr u8 VERSION_MICRO = 1;
-
-constexpr u8 REVISION_MAJOR = 1;
-constexpr u8 REVISION_MINOR = 0;
-
-constexpr char PLATFORM_STRING[] = "NX";
-constexpr char VERSION_HASH[] = "69103fcb2004dace877094c2f8c29e6113be5dbf";
-constexpr char DISPLAY_VERSION[] = "11.0.1";
-constexpr char DISPLAY_TITLE[] = "NintendoSDK Firmware for NX 11.0.1-1.0";
-
-} // namespace SystemVersionData
-
 std::string GetLongDisplayVersion() {
-    return SystemVersionData::DISPLAY_TITLE;
+    return HLE::ApiVersion::DISPLAY_TITLE;
 }

 VirtualDir SystemVersion() {
    VirtualFile file = std::make_shared<VectorVfsFile>(std::vector<u8>(0x100), "file");
-    file->WriteObject(SystemVersionData::VERSION_MAJOR, 0);
-    file->WriteObject(SystemVersionData::VERSION_MINOR, 1);
-    file->WriteObject(SystemVersionData::VERSION_MICRO, 2);
-    file->WriteObject(SystemVersionData::REVISION_MAJOR, 4);
-    file->WriteObject(SystemVersionData::REVISION_MINOR, 5);
-    file->WriteArray(SystemVersionData::PLATFORM_STRING,
-                     std::min<u64>(sizeof(SystemVersionData::PLATFORM_STRING), 0x20ULL), 0x8);
-    file->WriteArray(SystemVersionData::VERSION_HASH,
-                     std::min<u64>(sizeof(SystemVersionData::VERSION_HASH), 0x40ULL), 0x28);
-    file->WriteArray(SystemVersionData::DISPLAY_VERSION,
-                     std::min<u64>(sizeof(SystemVersionData::DISPLAY_VERSION), 0x18ULL), 0x68);
-    file->WriteArray(SystemVersionData::DISPLAY_TITLE,
-                     std::min<u64>(sizeof(SystemVersionData::DISPLAY_TITLE), 0x80ULL), 0x80);
+    file->WriteObject(HLE::ApiVersion::HOS_VERSION_MAJOR, 0);
+    file->WriteObject(HLE::ApiVersion::HOS_VERSION_MINOR, 1);
+    file->WriteObject(HLE::ApiVersion::HOS_VERSION_MICRO, 2);
+    file->WriteObject(HLE::ApiVersion::SDK_REVISION_MAJOR, 4);
+    file->WriteObject(HLE::ApiVersion::SDK_REVISION_MINOR, 5);
+    file->WriteArray(HLE::ApiVersion::PLATFORM_STRING,
+                     std::min<u64>(sizeof(HLE::ApiVersion::PLATFORM_STRING), 0x20ULL), 0x8);
+    file->WriteArray(HLE::ApiVersion::VERSION_HASH,
+                     std::min<u64>(sizeof(HLE::ApiVersion::VERSION_HASH), 0x40ULL), 0x28);
+    file->WriteArray(HLE::ApiVersion::DISPLAY_VERSION,
+                     std::min<u64>(sizeof(HLE::ApiVersion::DISPLAY_VERSION), 0x18ULL), 0x68);
+    file->WriteArray(HLE::ApiVersion::DISPLAY_TITLE,
+                     std::min<u64>(sizeof(HLE::ApiVersion::DISPLAY_TITLE), 0x80ULL), 0x80);
    return std::make_shared<VectorVfsDirectory>(std::vector<VirtualFile>{file},
                                                std::vector<VirtualDir>{}, "data");
 }
--- a/src/core/file_sys/vfs.cpp
+++ b/src/core/file_sys/vfs.cpp
@@ -6,7 +6,6 @@
 #include <numeric>
 #include <string>
 #include "common/fs/path_util.h"
-#include "common/logging/backend.h"
 #include "core/file_sys/mode.h"
 #include "core/file_sys/vfs.h"

--- a/src/core/file_sys/vfs_libzip.cpp
+++ b/src/core/file_sys/vfs_libzip.cpp
@@ -14,7 +14,6 @@
 #endif

 #include "common/fs/path_util.h"
-#include "common/logging/backend.h"
 #include "core/file_sys/vfs.h"
 #include "core/file_sys/vfs_libzip.h"
 #include "core/file_sys/vfs_vector.h"
--- a/src/core/file_sys/vfs_real.cpp
+++ b/src/core/file_sys/vfs_real.cpp
@@ -24,17 +24,12 @@ constexpr FS::FileAccessMode ModeFlagsToFileAccessMode(Mode mode) {
    case Mode::Read:
        return FS::FileAccessMode::Read;
    case Mode::Write:
-        return FS::FileAccessMode::Write;
    case Mode::ReadWrite:
-        return FS::FileAccessMode::ReadWrite;
    case Mode::Append:
-        return FS::FileAccessMode::Append;
    case Mode::ReadAppend:
-        return FS::FileAccessMode::ReadAppend;
    case Mode::WriteAppend:
-        return FS::FileAccessMode::Append;
    case Mode::All:
-        return FS::FileAccessMode::ReadAppend;
+        return FS::FileAccessMode::ReadWrite;
    default:
        return {};
    }
--- a/src/core/frontend/input.h
+++ b/src/core/frontend/input.h
@@ -4,6 +4,7 @@

 #pragma once

+#include <functional>
 #include <memory>
 #include <string>
 #include <tuple>
@@ -27,6 +28,10 @@ struct AnalogProperties {
    float range;
    float threshold;
 };
+template <typename StatusType>
+struct InputCallback {
+    std::function<void(StatusType)> on_change;
+};

 /// An abstract class template for an input device (a button, an analog input, etc.).
 template <typename StatusType>
@@ -50,6 +55,17 @@ public:
                               [[maybe_unused]] f32 freq_high) const {
        return {};
    }
+    void SetCallback(InputCallback<StatusType> callback_) {
+        callback = std::move(callback_);
+    }
+    void TriggerOnChange() {
+        if (callback.on_change) {
+            callback.on_change(GetStatus());
+        }
+    }
+
+private:
+    InputCallback<StatusType> callback;
 };

 /// An abstract class template for a factory that can create input devices.
--- a/src/core/hle/api_version.h
+++ b/src/core/hle/api_version.h
@@ -0,0 +1,40 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+
+// This file contains yuzu's HLE API version constants.
+
+namespace HLE::ApiVersion {
+
+// Horizon OS version constants.
+
+constexpr u8 HOS_VERSION_MAJOR = 11;
+constexpr u8 HOS_VERSION_MINOR = 0;
+constexpr u8 HOS_VERSION_MICRO = 1;
+
+// NintendoSDK version constants.
+
+constexpr u8 SDK_REVISION_MAJOR = 1;
+constexpr u8 SDK_REVISION_MINOR = 0;
+
+constexpr char PLATFORM_STRING[] = "NX";
+constexpr char VERSION_HASH[] = "69103fcb2004dace877094c2f8c29e6113be5dbf";
+constexpr char DISPLAY_VERSION[] = "11.0.1";
+constexpr char DISPLAY_TITLE[] = "NintendoSDK Firmware for NX 11.0.1-1.0";
+
+// Atmosphere version constants.
+
+constexpr u8 ATMOSPHERE_RELEASE_VERSION_MAJOR = 0;
+constexpr u8 ATMOSPHERE_RELEASE_VERSION_MINOR = 19;
+constexpr u8 ATMOSPHERE_RELEASE_VERSION_MICRO = 4;
+
+constexpr u32 GetTargetFirmware() {
+    return u32{HOS_VERSION_MAJOR} << 24 | u32{HOS_VERSION_MINOR} << 16 |
+           u32{HOS_VERSION_MICRO} << 8 | 0U;
+}
+
+} // namespace HLE::ApiVersion
--- a/src/core/hle/ipc_helpers.h
+++ b/src/core/hle/ipc_helpers.h
@@ -345,8 +345,12 @@ public:
    explicit RequestParser(u32* command_buffer) : RequestHelperBase(command_buffer) {}

    explicit RequestParser(Kernel::HLERequestContext& ctx) : RequestHelperBase(ctx) {
-        ASSERT_MSG(ctx.GetDataPayloadOffset(), "context is incomplete");
-        Skip(ctx.GetDataPayloadOffset(), false);
+        // TIPC does not have data payload offset
+        if (!ctx.IsTipc()) {
+            ASSERT_MSG(ctx.GetDataPayloadOffset(), "context is incomplete");
+            Skip(ctx.GetDataPayloadOffset(), false);
+        }
+
        // Skip the u64 command id, it's already stored in the context
        static constexpr u32 CommandIdSize = 2;
        Skip(CommandIdSize, false);
--- a/src/core/hle/kernel/board/nintendo/nx/k_system_control.cpp
+++ b/src/core/hle/kernel/board/nintendo/nx/k_system_control.cpp
@@ -4,7 +4,8 @@

 #include <random>

-#include "common/common_sizes.h"
+#include "common/literals.h"
+
 #include "core/hle/kernel/board/nintendo/nx/k_system_control.h"
 #include "core/hle/kernel/board/nintendo/nx/secure_monitor.h"
 #include "core/hle/kernel/k_trace.h"
@@ -25,6 +26,8 @@ constexpr const std::size_t RequiredNonSecureSystemMemorySize =

 namespace {

+using namespace Common::Literals;
+
 u32 GetMemoryModeForInit() {
    return 0x01;
 }
@@ -57,11 +60,11 @@ size_t KSystemControl::Init::GetIntendedMemorySize() {
    switch (GetMemorySizeForInit()) {
    case Smc::MemorySize_4GB:
    default: // All invalid modes should go to 4GB.
-        return Common::Size_4_GB;
+        return 4_GiB;
    case Smc::MemorySize_6GB:
-        return Common::Size_6_GB;
+        return 6_GiB;
    case Smc::MemorySize_8GB:
-        return Common::Size_8_GB;
+        return 8_GiB;
    }
 }

@@ -79,17 +82,17 @@ std::size_t KSystemControl::Init::GetApplicationPoolSize() {
        switch (GetMemoryArrangeForInit()) {
        case Smc::MemoryArrangement_4GB:
        default:
-            return Common::Size_3285_MB;
+            return 3285_MiB;
        case Smc::MemoryArrangement_4GBForAppletDev:
-            return Common::Size_2048_MB;
+            return 2048_MiB;
        case Smc::MemoryArrangement_4GBForSystemDev:
-            return Common::Size_3285_MB;
+            return 3285_MiB;
        case Smc::MemoryArrangement_6GB:
-            return Common::Size_4916_MB;
+            return 4916_MiB;
        case Smc::MemoryArrangement_6GBForAppletDev:
-            return Common::Size_3285_MB;
+            return 3285_MiB;
        case Smc::MemoryArrangement_8GB:
-            return Common::Size_4916_MB;
+            return 4916_MiB;
        }
    }();

@@ -103,22 +106,22 @@ size_t KSystemControl::Init::GetAppletPoolSize() {
        switch (GetMemoryArrangeForInit()) {
        case Smc::MemoryArrangement_4GB:
        default:
-            return Common::Size_507_MB;
+            return 507_MiB;
        case Smc::MemoryArrangement_4GBForAppletDev:
-            return Common::Size_1554_MB;
+            return 1554_MiB;
        case Smc::MemoryArrangement_4GBForSystemDev:
-            return Common::Size_448_MB;
+            return 448_MiB;
        case Smc::MemoryArrangement_6GB:
-            return Common::Size_562_MB;
+            return 562_MiB;
        case Smc::MemoryArrangement_6GBForAppletDev:
-            return Common::Size_2193_MB;
+            return 2193_MiB;
        case Smc::MemoryArrangement_8GB:
-            return Common::Size_2193_MB;
+            return 2193_MiB;
        }
    }();

    // Return (possibly) adjusted size.
-    constexpr size_t ExtraSystemMemoryForAtmosphere = Common::Size_33_MB;
+    constexpr size_t ExtraSystemMemoryForAtmosphere = 33_MiB;
    return base_pool_size - ExtraSystemMemoryForAtmosphere - KTraceBufferSize;
 }

--- a/src/core/hle/kernel/hle_ipc.cpp
+++ b/src/core/hle/kernel/hle_ipc.cpp
@@ -30,16 +30,38 @@

 namespace Kernel {

-SessionRequestHandler::SessionRequestHandler() = default;
+SessionRequestHandler::SessionRequestHandler(KernelCore& kernel_, const char* service_name_)
+    : kernel{kernel_}, service_thread{kernel.CreateServiceThread(service_name_)} {}

-SessionRequestHandler::~SessionRequestHandler() = default;
+SessionRequestHandler::~SessionRequestHandler() {
+    kernel.ReleaseServiceThread(service_thread);
+}
+
+SessionRequestManager::SessionRequestManager(KernelCore& kernel_) : kernel{kernel_} {}
+
+SessionRequestManager::~SessionRequestManager() = default;
+
+bool SessionRequestManager::HasSessionRequestHandler(const HLERequestContext& context) const {
+    if (IsDomain() && context.HasDomainMessageHeader()) {
+        const auto& message_header = context.GetDomainMessageHeader();
+        const auto object_id = message_header.object_id;
+
+        if (object_id > DomainHandlerCount()) {
+            LOG_CRITICAL(IPC, "object_id {} is too big!", object_id);
+            return false;
+        }
+        return DomainHandler(object_id - 1) != nullptr;
+    } else {
+        return session_handler != nullptr;
+    }
+}

 void SessionRequestHandler::ClientConnected(KServerSession* session) {
-    session->SetSessionHandler(shared_from_this());
+    session->ClientConnected(shared_from_this());
 }

 void SessionRequestHandler::ClientDisconnected(KServerSession* session) {
-    session->SetSessionHandler(nullptr);
+    session->ClientDisconnected();
 }

 HLERequestContext::HLERequestContext(KernelCore& kernel_, Core::Memory::Memory& memory_,
@@ -169,12 +191,12 @@ ResultCode HLERequestContext::PopulateFromIncomingCommandBuffer(const KHandleTab

    if (command_header->IsCloseCommand()) {
        // Close does not populate the rest of the IPC header
-        return RESULT_SUCCESS;
+        return ResultSuccess;
    }

    std::copy_n(src_cmdbuf, IPC::COMMAND_BUFFER_LENGTH, cmd_buf.begin());

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_thread) {
@@ -216,7 +238,7 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_t
    memory.WriteBlock(owner_process, requesting_thread.GetTLSAddress(), cmd_buf.data(),
                      write_size * sizeof(u32));

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 std::vector<u8> HLERequestContext::ReadBuffer(std::size_t buffer_index) const {
--- a/src/core/hle/kernel/hle_ipc.h
+++ b/src/core/hle/kernel/hle_ipc.h
@@ -46,6 +46,7 @@ class KThread;
 class KReadableEvent;
 class KSession;
 class KWritableEvent;
+class ServiceThread;

 enum class ThreadWakeupReason;

@@ -56,7 +57,7 @@ enum class ThreadWakeupReason;
 */
 class SessionRequestHandler : public std::enable_shared_from_this<SessionRequestHandler> {
 public:
-    SessionRequestHandler();
+    SessionRequestHandler(KernelCore& kernel, const char* service_name_);
    virtual ~SessionRequestHandler();

    /**
@@ -83,6 +84,14 @@ public:
     * @param server_session ServerSession associated with the connection.
     */
    void ClientDisconnected(KServerSession* session);
+
+    std::weak_ptr<ServiceThread> GetServiceThread() const {
+        return service_thread;
+    }
+
+protected:
+    KernelCore& kernel;
+    std::weak_ptr<ServiceThread> service_thread;
 };

 using SessionRequestHandlerPtr = std::shared_ptr<SessionRequestHandler>;
@@ -94,7 +103,8 @@ using SessionRequestHandlerPtr = std::shared_ptr<SessionRequestHandler>;
 */
 class SessionRequestManager final {
 public:
-    SessionRequestManager() = default;
+    explicit SessionRequestManager(KernelCore& kernel);
+    ~SessionRequestManager();

    bool IsDomain() const {
        return is_domain;
@@ -142,10 +152,19 @@ public:
        session_handler = std::move(handler);
    }

+    std::weak_ptr<ServiceThread> GetServiceThread() const {
+        return session_handler->GetServiceThread();
+    }
+
+    bool HasSessionRequestHandler(const HLERequestContext& context) const;
+
 private:
    bool is_domain{};
    SessionRequestHandlerPtr session_handler;
    std::vector<SessionRequestHandlerPtr> domain_handlers;
+
+private:
+    KernelCore& kernel;
 };

 /**
--- a/src/core/hle/kernel/k_address_arbiter.cpp
+++ b/src/core/hle/kernel/k_address_arbiter.cpp
@@ -97,7 +97,7 @@ ResultCode KAddressArbiter::Signal(VAddr addr, s32 count) {
        while ((it != thread_tree.end()) && (count <= 0 || num_waiters < count) &&
               (it->GetAddressArbiterKey() == addr)) {
            KThread* target_thread = std::addressof(*it);
-            target_thread->SetSyncedObject(nullptr, RESULT_SUCCESS);
+            target_thread->SetSyncedObject(nullptr, ResultSuccess);

            ASSERT(target_thread->IsWaitingForAddressArbiter());
            target_thread->Wakeup();
@@ -107,7 +107,7 @@ ResultCode KAddressArbiter::Signal(VAddr addr, s32 count) {
            ++num_waiters;
        }
    }
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KAddressArbiter::SignalAndIncrementIfEqual(VAddr addr, s32 value, s32 count) {
@@ -130,7 +130,7 @@ ResultCode KAddressArbiter::SignalAndIncrementIfEqual(VAddr addr, s32 value, s32
        while ((it != thread_tree.end()) && (count <= 0 || num_waiters < count) &&
               (it->GetAddressArbiterKey() == addr)) {
            KThread* target_thread = std::addressof(*it);
-            target_thread->SetSyncedObject(nullptr, RESULT_SUCCESS);
+            target_thread->SetSyncedObject(nullptr, ResultSuccess);

            ASSERT(target_thread->IsWaitingForAddressArbiter());
            target_thread->Wakeup();
@@ -140,7 +140,7 @@ ResultCode KAddressArbiter::SignalAndIncrementIfEqual(VAddr addr, s32 value, s32
            ++num_waiters;
        }
    }
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KAddressArbiter::SignalAndModifyByWaitingCountIfEqual(VAddr addr, s32 value, s32 count) {
@@ -198,7 +198,7 @@ ResultCode KAddressArbiter::SignalAndModifyByWaitingCountIfEqual(VAddr addr, s32
        while ((it != thread_tree.end()) && (count <= 0 || num_waiters < count) &&
               (it->GetAddressArbiterKey() == addr)) {
            KThread* target_thread = std::addressof(*it);
-            target_thread->SetSyncedObject(nullptr, RESULT_SUCCESS);
+            target_thread->SetSyncedObject(nullptr, ResultSuccess);

            ASSERT(target_thread->IsWaitingForAddressArbiter());
            target_thread->Wakeup();
@@ -208,7 +208,7 @@ ResultCode KAddressArbiter::SignalAndModifyByWaitingCountIfEqual(VAddr addr, s32
            ++num_waiters;
        }
    }
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KAddressArbiter::WaitIfLessThan(VAddr addr, s32 value, bool decrement, s64 timeout) {
--- a/src/core/hle/kernel/k_address_arbiter.h
+++ b/src/core/hle/kernel/k_address_arbiter.h
@@ -37,7 +37,7 @@ public:
            return SignalAndModifyByWaitingCountIfEqual(addr, value, count);
        }
        UNREACHABLE();
-        return RESULT_UNKNOWN;
+        return ResultUnknown;
    }

    [[nodiscard]] ResultCode WaitForAddress(VAddr addr, Svc::ArbitrationType type, s32 value,
@@ -51,7 +51,7 @@ public:
            return WaitIfEqual(addr, value, timeout);
        }
        UNREACHABLE();
-        return RESULT_UNKNOWN;
+        return ResultUnknown;
    }

 private:
--- a/src/core/hle/kernel/k_address_space_info.cpp
+++ b/src/core/hle/kernel/k_address_space_info.cpp
@@ -5,34 +5,37 @@
 #include <array>

 #include "common/assert.h"
-#include "common/common_sizes.h"
+#include "common/literals.h"
 #include "core/hle/kernel/k_address_space_info.h"

 namespace Kernel {

 namespace {

+using namespace Common::Literals;
+
+constexpr u64 Size_Invalid = UINT64_MAX;
+
 // clang-format off
 constexpr std::array<KAddressSpaceInfo, 13> AddressSpaceInfos{{
-   { .bit_width = 32, .address = Common::Size_2_MB   , .size = Common::Size_1_GB   - Common::Size_2_MB  , .type = KAddressSpaceInfo::Type::MapSmall, },
-   { .bit_width = 32, .address = Common::Size_1_GB   , .size = Common::Size_4_GB   - Common::Size_1_GB  , .type = KAddressSpaceInfo::Type::MapLarge, },
-   { .bit_width = 32, .address = Common::Size_Invalid, .size = Common::Size_1_GB                        , .type = KAddressSpaceInfo::Type::Alias,    },
-   { .bit_width = 32, .address = Common::Size_Invalid, .size = Common::Size_1_GB                        , .type = KAddressSpaceInfo::Type::Heap,     },
-   { .bit_width = 36, .address = Common::Size_128_MB , .size = Common::Size_2_GB   - Common::Size_128_MB, .type = KAddressSpaceInfo::Type::MapSmall, },
-   { .bit_width = 36, .address = Common::Size_2_GB   , .size = Common::Size_64_GB  - Common::Size_2_GB  , .type = KAddressSpaceInfo::Type::MapLarge, },
-   { .bit_width = 36, .address = Common::Size_Invalid, .size = Common::Size_6_GB                        , .type = KAddressSpaceInfo::Type::Heap,     },
-   { .bit_width = 36, .address = Common::Size_Invalid, .size = Common::Size_6_GB                        , .type = KAddressSpaceInfo::Type::Alias,    },
-   { .bit_width = 39, .address = Common::Size_128_MB , .size = Common::Size_512_GB - Common::Size_128_MB, .type = KAddressSpaceInfo::Type::Map39Bit, },
-   { .bit_width = 39, .address = Common::Size_Invalid, .size = Common::Size_64_GB                       , .type = KAddressSpaceInfo::Type::MapSmall  },
-   { .bit_width = 39, .address = Common::Size_Invalid, .size = Common::Size_6_GB                        , .type = KAddressSpaceInfo::Type::Heap,     },
-   { .bit_width = 39, .address = Common::Size_Invalid, .size = Common::Size_64_GB                       , .type = KAddressSpaceInfo::Type::Alias,    },
-   { .bit_width = 39, .address = Common::Size_Invalid, .size = Common::Size_2_GB                        , .type = KAddressSpaceInfo::Type::Stack,    },
+   { .bit_width = 32, .address = 2_MiB       , .size = 1_GiB   - 2_MiB  , .type = KAddressSpaceInfo::Type::MapSmall, },
+   { .bit_width = 32, .address = 1_GiB       , .size = 4_GiB   - 1_GiB  , .type = KAddressSpaceInfo::Type::MapLarge, },
+   { .bit_width = 32, .address = Size_Invalid, .size = 1_GiB            , .type = KAddressSpaceInfo::Type::Alias,    },
+   { .bit_width = 32, .address = Size_Invalid, .size = 1_GiB            , .type = KAddressSpaceInfo::Type::Heap,     },
+   { .bit_width = 36, .address = 128_MiB     , .size = 2_GiB   - 128_MiB, .type = KAddressSpaceInfo::Type::MapSmall, },
+   { .bit_width = 36, .address = 2_GiB       , .size = 64_GiB  - 2_GiB  , .type = KAddressSpaceInfo::Type::MapLarge, },
+   { .bit_width = 36, .address = Size_Invalid, .size = 6_GiB            , .type = KAddressSpaceInfo::Type::Heap,     },
+   { .bit_width = 36, .address = Size_Invalid, .size = 6_GiB            , .type = KAddressSpaceInfo::Type::Alias,    },
+   { .bit_width = 39, .address = 128_MiB     , .size = 512_GiB - 128_MiB, .type = KAddressSpaceInfo::Type::Map39Bit, },
+   { .bit_width = 39, .address = Size_Invalid, .size = 64_GiB           , .type = KAddressSpaceInfo::Type::MapSmall  },
+   { .bit_width = 39, .address = Size_Invalid, .size = 6_GiB            , .type = KAddressSpaceInfo::Type::Heap,     },
+   { .bit_width = 39, .address = Size_Invalid, .size = 64_GiB           , .type = KAddressSpaceInfo::Type::Alias,    },
+   { .bit_width = 39, .address = Size_Invalid, .size = 2_GiB            , .type = KAddressSpaceInfo::Type::Stack,    },
 }};
 // clang-format on

 constexpr bool IsAllowedIndexForAddress(std::size_t index) {
-    return index < AddressSpaceInfos.size() &&
-           AddressSpaceInfos[index].address != Common::Size_Invalid;
+    return index < AddressSpaceInfos.size() && AddressSpaceInfos[index].address != Size_Invalid;
 }

 using IndexArray =
--- a/src/core/hle/kernel/k_auto_object.h
+++ b/src/core/hle/kernel/k_auto_object.h
@@ -7,10 +7,11 @@
 #include <atomic>
 #include <string>

+#include <boost/intrusive/rbtree.hpp>
+
 #include "common/assert.h"
 #include "common/common_funcs.h"
 #include "common/common_types.h"
-#include "common/intrusive_red_black_tree.h"
 #include "core/hle/kernel/k_class_token.h"

 namespace Kernel {
@@ -175,7 +176,7 @@ private:

 class KAutoObjectWithListContainer;

-class KAutoObjectWithList : public KAutoObject {
+class KAutoObjectWithList : public KAutoObject, public boost::intrusive::set_base_hook<> {
 public:
    explicit KAutoObjectWithList(KernelCore& kernel_) : KAutoObject(kernel_) {}

@@ -192,6 +193,10 @@ public:
        }
    }

+    friend bool operator<(const KAutoObjectWithList& left, const KAutoObjectWithList& right) {
+        return &left < &right;
+    }
+
 public:
    virtual u64 GetId() const {
        return reinterpret_cast<u64>(this);
@@ -203,8 +208,6 @@ public:

 private:
    friend class KAutoObjectWithListContainer;
-
-    Common::IntrusiveRedBlackTreeNode list_node;
 };

 template <typename T>
--- a/src/core/hle/kernel/k_auto_object_container.cpp
+++ b/src/core/hle/kernel/k_auto_object_container.cpp
@@ -9,13 +9,13 @@ namespace Kernel {
 void KAutoObjectWithListContainer::Register(KAutoObjectWithList* obj) {
    KScopedLightLock lk(m_lock);

-    m_object_list.insert(*obj);
+    m_object_list.insert_unique(*obj);
 }

 void KAutoObjectWithListContainer::Unregister(KAutoObjectWithList* obj) {
    KScopedLightLock lk(m_lock);

-    m_object_list.erase(m_object_list.iterator_to(*obj));
+    m_object_list.erase(*obj);
 }

 size_t KAutoObjectWithListContainer::GetOwnedCount(KProcess* owner) {
--- a/src/core/hle/kernel/k_auto_object_container.h
+++ b/src/core/hle/kernel/k_auto_object_container.h
@@ -6,6 +6,8 @@

 #include <atomic>

+#include <boost/intrusive/rbtree.hpp>
+
 #include "common/assert.h"
 #include "common/common_funcs.h"
 #include "common/common_types.h"
@@ -23,8 +25,7 @@ class KAutoObjectWithListContainer {
    YUZU_NON_MOVEABLE(KAutoObjectWithListContainer);

 public:
-    using ListType = Common::IntrusiveRedBlackTreeMemberTraits<
-        &KAutoObjectWithList::list_node>::TreeType<KAutoObjectWithList>;
+    using ListType = boost::intrusive::rbtree<KAutoObjectWithList>;

 public:
    class ListAccessor : public KScopedLightLock {
--- a/src/core/hle/kernel/k_client_port.cpp
+++ b/src/core/hle/kernel/k_client_port.cpp
@@ -16,11 +16,11 @@ namespace Kernel {
 KClientPort::KClientPort(KernelCore& kernel_) : KSynchronizationObject{kernel_} {}
 KClientPort::~KClientPort() = default;

-void KClientPort::Initialize(KPort* parent_, s32 max_sessions_, std::string&& name_) {
+void KClientPort::Initialize(KPort* parent_port_, s32 max_sessions_, std::string&& name_) {
    // Set member variables.
    num_sessions = 0;
    peak_sessions = 0;
-    parent = parent_;
+    parent = parent_port_;
    max_sessions = max_sessions_;
    name = std::move(name_);
 }
@@ -28,6 +28,9 @@ void KClientPort::Initialize(KPort* parent_, s32 max_sessions_, std::string&& na
 void KClientPort::OnSessionFinalized() {
    KScopedSchedulerLock sl{kernel};

+    // This might happen if a session was improperly used with this port.
+    ASSERT_MSG(num_sessions > 0, "num_sessions is invalid");
+
    const auto prev = num_sessions--;
    if (prev == max_sessions) {
        this->NotifyAvailable();
@@ -56,7 +59,8 @@ bool KClientPort::IsSignaled() const {
    return num_sessions < max_sessions;
 }

-ResultCode KClientPort::CreateSession(KClientSession** out) {
+ResultCode KClientPort::CreateSession(KClientSession** out,
+                                      std::shared_ptr<SessionRequestManager> session_manager) {
    // Reserve a new session from the resource limit.
    KScopedResourceReservation session_reservation(kernel.CurrentProcess()->GetResourceLimit(),
                                                   LimitableResource::Sessions);
@@ -65,7 +69,7 @@ ResultCode KClientPort::CreateSession(KClientSession** out) {
    // Update the session counts.
    {
        // Atomically increment the number of sessions.
-        s32 new_sessions;
+        s32 new_sessions{};
        {
            const auto max = max_sessions;
            auto cur_sessions = num_sessions.load(std::memory_order_acquire);
@@ -101,7 +105,7 @@ ResultCode KClientPort::CreateSession(KClientSession** out) {
    }

    // Initialize the session.
-    session->Initialize(this, parent->GetName());
+    session->Initialize(this, parent->GetName(), session_manager);

    // Commit the session reservation.
    session_reservation.Commit();
@@ -119,7 +123,7 @@ ResultCode KClientPort::CreateSession(KClientSession** out) {
    // We succeeded, so set the output.
    session_guard.Cancel();
    *out = std::addressof(session->GetClientSession());
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 } // namespace Kernel
--- a/src/core/hle/kernel/k_client_port.h
+++ b/src/core/hle/kernel/k_client_port.h
@@ -16,6 +16,7 @@ namespace Kernel {
 class KClientSession;
 class KernelCore;
 class KPort;
+class SessionRequestManager;

 class KClientPort final : public KSynchronizationObject {
    KERNEL_AUTOOBJECT_TRAITS(KClientPort, KSynchronizationObject);
@@ -52,7 +53,8 @@ public:
    void Destroy() override;
    bool IsSignaled() const override;

-    ResultCode CreateSession(KClientSession** out);
+    ResultCode CreateSession(KClientSession** out,
+                             std::shared_ptr<SessionRequestManager> session_manager = nullptr);

 private:
    std::atomic<s32> num_sessions{};
--- a/src/core/hle/kernel/k_client_session.h
+++ b/src/core/hle/kernel/k_client_session.h
@@ -36,9 +36,9 @@ public:
    explicit KClientSession(KernelCore& kernel_);
    ~KClientSession() override;

-    void Initialize(KSession* parent_, std::string&& name_) {
+    void Initialize(KSession* parent_session_, std::string&& name_) {
        // Set member variables.
-        parent = parent_;
+        parent = parent_session_;
        name = std::move(name_);
    }

--- a/src/core/hle/kernel/k_condition_variable.cpp
+++ b/src/core/hle/kernel/k_condition_variable.cpp
@@ -86,7 +86,7 @@ ResultCode KConditionVariable::SignalToAddress(VAddr addr) {
                next_value |= Svc::HandleWaitMask;
            }

-            next_owner_thread->SetSyncedObject(nullptr, RESULT_SUCCESS);
+            next_owner_thread->SetSyncedObject(nullptr, ResultSuccess);
            next_owner_thread->Wakeup();
        }

@@ -100,7 +100,7 @@ ResultCode KConditionVariable::SignalToAddress(VAddr addr) {
        }
    }

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KConditionVariable::WaitForAddress(Handle handle, VAddr addr, u32 value) {
@@ -112,7 +112,7 @@ ResultCode KConditionVariable::WaitForAddress(Handle handle, VAddr addr, u32 val
        ASSERT(owner_thread.IsNull());
        {
            KScopedSchedulerLock sl(kernel);
-            cur_thread->SetSyncedObject(nullptr, RESULT_SUCCESS);
+            cur_thread->SetSyncedObject(nullptr, ResultSuccess);

            // Check if the thread should terminate.
            R_UNLESS(!cur_thread->IsTerminationRequested(), ResultTerminationRequested);
@@ -124,7 +124,7 @@ ResultCode KConditionVariable::WaitForAddress(Handle handle, VAddr addr, u32 val
                         ResultInvalidCurrentMemory);

                // If the tag isn't the handle (with wait mask), we're done.
-                R_UNLESS(test_tag == (handle | Svc::HandleWaitMask), RESULT_SUCCESS);
+                R_UNLESS(test_tag == (handle | Svc::HandleWaitMask), ResultSuccess);

                // Get the lock owner thread.
                owner_thread =
@@ -181,7 +181,7 @@ KThread* KConditionVariable::SignalImpl(KThread* thread) {
    if (can_access) {
        if (prev_tag == Svc::InvalidHandle) {
            // If nobody held the lock previously, we're all good.
-            thread->SetSyncedObject(nullptr, RESULT_SUCCESS);
+            thread->SetSyncedObject(nullptr, ResultSuccess);
            thread->Wakeup();
        } else {
            // Get the previous owner.
@@ -292,7 +292,7 @@ ResultCode KConditionVariable::Wait(VAddr addr, u64 key, u32 value, s64 timeout)
                }

                // Wake up the next owner.
-                next_owner_thread->SetSyncedObject(nullptr, RESULT_SUCCESS);
+                next_owner_thread->SetSyncedObject(nullptr, ResultSuccess);
                next_owner_thread->Wakeup();
            }

--- a/src/core/hle/kernel/k_handle_table.cpp
+++ b/src/core/hle/kernel/k_handle_table.cpp
@@ -25,7 +25,7 @@ ResultCode KHandleTable::Finalize() {
        }
    }

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 bool KHandleTable::Remove(Handle handle) {
@@ -79,7 +79,7 @@ ResultCode KHandleTable::Add(Handle* out_handle, KAutoObject* obj, u16 type) {
        *out_handle = EncodeHandle(static_cast<u16>(index), linear_id);
    }

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KHandleTable::Reserve(Handle* out_handle) {
@@ -89,7 +89,7 @@ ResultCode KHandleTable::Reserve(Handle* out_handle) {
    R_UNLESS(m_count < m_table_size, ResultOutOfHandles);

    *out_handle = EncodeHandle(static_cast<u16>(this->AllocateEntry()), this->AllocateLinearId());
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 void KHandleTable::Unreserve(Handle handle) {
--- a/src/core/hle/kernel/k_handle_table.h
+++ b/src/core/hle/kernel/k_handle_table.h
@@ -50,7 +50,7 @@ public:
            m_free_head_index = i;
        }

-        return RESULT_SUCCESS;
+        return ResultSuccess;
    }

    size_t GetTableSize() const {
--- a/src/core/hle/kernel/k_light_condition_variable.h
+++ b/src/core/hle/kernel/k_light_condition_variable.h
@@ -18,41 +18,58 @@ class KernelCore;

 class KLightConditionVariable {
 public:
-    explicit KLightConditionVariable(KernelCore& kernel_)
-        : thread_queue(kernel_), kernel(kernel_) {}
+    explicit KLightConditionVariable(KernelCore& kernel_) : kernel{kernel_} {}

-    void Wait(KLightLock* lock, s64 timeout = -1) {
-        WaitImpl(lock, timeout);
-        lock->Lock();
+    void Wait(KLightLock* lock, s64 timeout = -1, bool allow_terminating_thread = true) {
+        WaitImpl(lock, timeout, allow_terminating_thread);
    }

    void Broadcast() {
        KScopedSchedulerLock lk{kernel};
-        while (thread_queue.WakeupFrontThread() != nullptr) {
-            // We want to signal all threads, and so should continue waking up until there's nothing
-            // to wake.
+
+        // Signal all threads.
+        for (auto& thread : wait_list) {
+            thread.SetState(ThreadState::Runnable);
        }
    }

 private:
-    void WaitImpl(KLightLock* lock, s64 timeout) {
+    void WaitImpl(KLightLock* lock, s64 timeout, bool allow_terminating_thread) {
        KThread* owner = GetCurrentThreadPointer(kernel);

        // Sleep the thread.
        {
-            KScopedSchedulerLockAndSleep lk(kernel, owner, timeout);
-            lock->Unlock();
+            KScopedSchedulerLockAndSleep lk{kernel, owner, timeout};

-            if (!thread_queue.SleepThread(owner)) {
+            if (!allow_terminating_thread && owner->IsTerminationRequested()) {
                lk.CancelSleep();
                return;
            }
+
+            lock->Unlock();
+
+            // Set the thread as waiting.
+            GetCurrentThread(kernel).SetState(ThreadState::Waiting);
+
+            // Add the thread to the queue.
+            wait_list.push_back(GetCurrentThread(kernel));
+        }
+
+        // Remove the thread from the wait list.
+        {
+            KScopedSchedulerLock sl{kernel};
+
+            wait_list.erase(wait_list.iterator_to(GetCurrentThread(kernel)));
        }

        // Cancel the task that the sleep setup.
        kernel.TimeManager().UnscheduleTimeEvent(owner);
+
+        // Re-acquire the lock.
+        lock->Lock();
    }
-    KThreadQueue thread_queue;
+
    KernelCore& kernel;
+    KThread::WaiterList wait_list{};
 };
 } // namespace Kernel
--- a/src/core/hle/kernel/k_light_lock.cpp
+++ b/src/core/hle/kernel/k_light_lock.cpp
@@ -59,11 +59,7 @@ void KLightLock::LockSlowPath(uintptr_t _owner, uintptr_t _cur_thread) {
        owner_thread->AddWaiter(cur_thread);

        // Set thread states.
-        if (cur_thread->GetState() == ThreadState::Runnable) {
-            cur_thread->SetState(ThreadState::Waiting);
-        } else {
-            KScheduler::SetSchedulerUpdateNeeded(kernel);
-        }
+        cur_thread->SetState(ThreadState::Waiting);

        if (owner_thread->IsSuspended()) {
            owner_thread->ContinueIfHasKernelWaiters();
@@ -73,10 +69,9 @@ void KLightLock::LockSlowPath(uintptr_t _owner, uintptr_t _cur_thread) {
    // We're no longer waiting on the lock owner.
    {
        KScopedSchedulerLock sl{kernel};
-        KThread* owner_thread = cur_thread->GetLockOwner();
-        if (owner_thread) {
+
+        if (KThread* owner_thread = cur_thread->GetLockOwner(); owner_thread != nullptr) {
            owner_thread->RemoveWaiter(cur_thread);
-            KScheduler::SetSchedulerUpdateNeeded(kernel);
        }
    }
 }
@@ -95,17 +90,13 @@ void KLightLock::UnlockSlowPath(uintptr_t _cur_thread) {

        // Pass the lock to the next owner.
        uintptr_t next_tag = 0;
-        if (next_owner) {
+        if (next_owner != nullptr) {
            next_tag = reinterpret_cast<uintptr_t>(next_owner);
            if (num_waiters > 1) {
                next_tag |= 0x1;
            }

-            if (next_owner->GetState() == ThreadState::Waiting) {
-                next_owner->SetState(ThreadState::Runnable);
-            } else {
-                KScheduler::SetSchedulerUpdateNeeded(kernel);
-            }
+            next_owner->SetState(ThreadState::Runnable);

            if (next_owner->IsSuspended()) {
                next_owner->ContinueIfHasKernelWaiters();
--- a/src/core/hle/kernel/k_memory_layout.board.nintendo_nx.cpp
+++ b/src/core/hle/kernel/k_memory_layout.board.nintendo_nx.cpp
@@ -3,6 +3,7 @@
 // Refer to the license.txt file included.

 #include "common/alignment.h"
+#include "common/literals.h"
 #include "core/hle/kernel/k_memory_layout.h"
 #include "core/hle/kernel/k_memory_manager.h"
 #include "core/hle/kernel/k_system_control.h"
@@ -12,8 +13,10 @@ namespace Kernel {

 namespace {

+using namespace Common::Literals;
+
 constexpr size_t CarveoutAlignment = 0x20000;
-constexpr size_t CarveoutSizeMax = (512ULL * 1024 * 1024) - CarveoutAlignment;
+constexpr size_t CarveoutSizeMax = (512_MiB) - CarveoutAlignment;

 bool SetupPowerManagementControllerMemoryRegion(KMemoryLayout& memory_layout) {
    // Above firmware 2.0.0, the PMC is not mappable.
--- a/src/core/hle/kernel/k_memory_layout.h
+++ b/src/core/hle/kernel/k_memory_layout.h
@@ -7,8 +7,7 @@
 #include <utility>

 #include "common/alignment.h"
-#include "common/common_sizes.h"
-#include "common/common_types.h"
+#include "common/literals.h"
 #include "core/device_memory.h"
 #include "core/hle/kernel/k_memory_region.h"
 #include "core/hle/kernel/k_memory_region_type.h"
@@ -16,20 +15,22 @@

 namespace Kernel {

-constexpr std::size_t L1BlockSize = Common::Size_1_GB;
-constexpr std::size_t L2BlockSize = Common::Size_2_MB;
+using namespace Common::Literals;
+
+constexpr std::size_t L1BlockSize = 1_GiB;
+constexpr std::size_t L2BlockSize = 2_MiB;

 constexpr std::size_t GetMaximumOverheadSize(std::size_t size) {
    return (Common::DivideUp(size, L1BlockSize) + Common::DivideUp(size, L2BlockSize)) * PageSize;
 }

-constexpr std::size_t MainMemorySize = Common::Size_4_GB;
-constexpr std::size_t MainMemorySizeMax = Common::Size_8_GB;
+constexpr std::size_t MainMemorySize = 4_GiB;
+constexpr std::size_t MainMemorySizeMax = 8_GiB;

-constexpr std::size_t ReservedEarlyDramSize = 0x60000;
+constexpr std::size_t ReservedEarlyDramSize = 384_KiB;
 constexpr std::size_t DramPhysicalAddress = 0x80000000;

-constexpr std::size_t KernelAslrAlignment = Common::Size_2_MB;
+constexpr std::size_t KernelAslrAlignment = 2_MiB;
 constexpr std::size_t KernelVirtualAddressSpaceWidth = 1ULL << 39;
 constexpr std::size_t KernelPhysicalAddressSpaceWidth = 1ULL << 48;

@@ -40,7 +41,7 @@ constexpr std::size_t KernelVirtualAddressSpaceLast = KernelVirtualAddressSpaceE
 constexpr std::size_t KernelVirtualAddressSpaceSize =
    KernelVirtualAddressSpaceEnd - KernelVirtualAddressSpaceBase;
 constexpr std::size_t KernelVirtualAddressCodeBase = KernelVirtualAddressSpaceBase;
-constexpr std::size_t KernelVirtualAddressCodeSize = 0x62000;
+constexpr std::size_t KernelVirtualAddressCodeSize = 392_KiB;
 constexpr std::size_t KernelVirtualAddressCodeEnd =
    KernelVirtualAddressCodeBase + KernelVirtualAddressCodeSize;

@@ -53,14 +54,14 @@ constexpr std::size_t KernelPhysicalAddressSpaceSize =
 constexpr std::size_t KernelPhysicalAddressCodeBase = DramPhysicalAddress + ReservedEarlyDramSize;

 constexpr std::size_t KernelPageTableHeapSize = GetMaximumOverheadSize(MainMemorySizeMax);
-constexpr std::size_t KernelInitialPageHeapSize = Common::Size_128_KB;
+constexpr std::size_t KernelInitialPageHeapSize = 128_KiB;

-constexpr std::size_t KernelSlabHeapDataSize = Common::Size_5_MB;
-constexpr std::size_t KernelSlabHeapGapsSize = Common::Size_2_MB - Common::Size_64_KB;
+constexpr std::size_t KernelSlabHeapDataSize = 5_MiB;
+constexpr std::size_t KernelSlabHeapGapsSize = 2_MiB - 64_KiB;
 constexpr std::size_t KernelSlabHeapSize = KernelSlabHeapDataSize + KernelSlabHeapGapsSize;

 // NOTE: This is calculated from KThread slab counts, assuming KThread size <= 0x860.
-constexpr std::size_t KernelSlabHeapAdditionalSize = 0x68000ULL;
+constexpr std::size_t KernelSlabHeapAdditionalSize = 416_KiB;

 constexpr std::size_t KernelResourceSize =
    KernelPageTableHeapSize + KernelInitialPageHeapSize + KernelSlabHeapSize;
--- a/src/core/hle/kernel/k_memory_manager.cpp
+++ b/src/core/hle/kernel/k_memory_manager.cpp
@@ -86,7 +86,7 @@ ResultCode KMemoryManager::Allocate(KPageLinkedList& page_list, std::size_t num_

    // Early return if we're allocating no pages
    if (num_pages == 0) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
    }

    // Lock the pool that we're allocating from
@@ -146,14 +146,14 @@ ResultCode KMemoryManager::Allocate(KPageLinkedList& page_list, std::size_t num_

    // We succeeded!
    group_guard.Cancel();
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KMemoryManager::Free(KPageLinkedList& page_list, std::size_t num_pages, Pool pool,
                                Direction dir) {
    // Early return if we're freeing no pages
    if (!num_pages) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
    }

    // Lock the pool that we're freeing from
@@ -170,7 +170,7 @@ ResultCode KMemoryManager::Free(KPageLinkedList& page_list, std::size_t num_page
        chosen_manager.Free(it.GetAddress(), min_num_pages);
    }

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 std::size_t KMemoryManager::Impl::CalculateManagementOverheadSize(std::size_t region_size) {
--- a/src/core/hle/kernel/k_page_linked_list.h
+++ b/src/core/hle/kernel/k_page_linked_list.h
@@ -71,7 +71,7 @@ public:

    ResultCode AddBlock(u64 address, u64 num_pages) {
        if (!num_pages) {
-            return RESULT_SUCCESS;
+            return ResultSuccess;
        }
        if (!nodes.empty()) {
            const auto node = nodes.back();
@@ -82,7 +82,7 @@ public:
            }
        }
        nodes.push_back({address, num_pages});
-        return RESULT_SUCCESS;
+        return ResultSuccess;
    }

 private:
--- a/src/core/hle/kernel/k_page_table.cpp
+++ b/src/core/hle/kernel/k_page_table.cpp
@@ -4,6 +4,7 @@

 #include "common/alignment.h"
 #include "common/assert.h"
+#include "common/literals.h"
 #include "common/scope_exit.h"
 #include "core/core.h"
 #include "core/hle/kernel/k_address_space_info.h"
@@ -23,6 +24,8 @@ namespace Kernel {

 namespace {

+using namespace Common::Literals;
+
 constexpr std::size_t GetAddressSpaceWidthFromType(FileSys::ProgramAddressSpaceType as_type) {
    switch (as_type) {
    case FileSys::ProgramAddressSpaceType::Is32Bit:
@@ -89,7 +92,7 @@ ResultCode KPageTable::InitializeForProcess(FileSys::ProgramAddressSpaceType as_
    }

    // Set code regions and determine remaining
-    constexpr std::size_t RegionAlignment{2 * 1024 * 1024};
+    constexpr std::size_t RegionAlignment{2_MiB};
    VAddr process_code_start{};
    VAddr process_code_end{};
    std::size_t stack_region_size{};
@@ -292,7 +295,7 @@ ResultCode KPageTable::MapProcessCode(VAddr addr, std::size_t num_pages, KMemory

    block_manager->Update(addr, num_pages, state, perm);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::MapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std::size_t size) {
@@ -329,14 +332,14 @@ ResultCode KPageTable::MapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std:
                          KMemoryAttribute::Locked);
    block_manager->Update(dst_addr, num_pages, KMemoryState::AliasCode);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::UnmapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std::size_t size) {
    std::lock_guard lock{page_table_lock};

    if (!size) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
    }

    const std::size_t num_pages{size / PageSize};
@@ -360,7 +363,7 @@ ResultCode KPageTable::UnmapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, st
    block_manager->Update(src_addr, num_pages, KMemoryState::Normal,
                          KMemoryPermission::ReadAndWrite);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 void KPageTable::MapPhysicalMemory(KPageLinkedList& page_linked_list, VAddr start, VAddr end) {
@@ -408,7 +411,7 @@ ResultCode KPageTable::MapPhysicalMemory(VAddr addr, std::size_t size) {
    });

    if (mapped_size == size) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
    }

    const std::size_t remaining_size{size - mapped_size};
@@ -440,14 +443,14 @@ ResultCode KPageTable::MapPhysicalMemory(VAddr addr, std::size_t size) {
                          KMemoryAttribute::None, KMemoryState::Normal,
                          KMemoryPermission::ReadAndWrite, KMemoryAttribute::None);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::UnmapPhysicalMemory(VAddr addr, std::size_t size) {
    std::lock_guard lock{page_table_lock};

    const VAddr end_addr{addr + size};
-    ResultCode result{RESULT_SUCCESS};
+    ResultCode result{ResultSuccess};
    std::size_t mapped_size{};

    // Verify that the region can be unmapped
@@ -468,7 +471,7 @@ ResultCode KPageTable::UnmapPhysicalMemory(VAddr addr, std::size_t size) {
    }

    if (!mapped_size) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
    }

    CASCADE_CODE(UnmapMemory(addr, size));
@@ -477,14 +480,14 @@ ResultCode KPageTable::UnmapPhysicalMemory(VAddr addr, std::size_t size) {
    process->GetResourceLimit()->Release(LimitableResource::PhysicalMemory, mapped_size);
    physical_memory_usage -= mapped_size;

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::UnmapMemory(VAddr addr, std::size_t size) {
    std::lock_guard lock{page_table_lock};

    const VAddr end_addr{addr + size};
-    ResultCode result{RESULT_SUCCESS};
+    ResultCode result{ResultSuccess};
    KPageLinkedList page_linked_list;

    // Unmap each region within the range
@@ -513,7 +516,7 @@ ResultCode KPageTable::UnmapMemory(VAddr addr, std::size_t size) {

    block_manager->Update(addr, num_pages, KMemoryState::Free);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::Map(VAddr dst_addr, VAddr src_addr, std::size_t size) {
@@ -552,7 +555,7 @@ ResultCode KPageTable::Map(VAddr dst_addr, VAddr src_addr, std::size_t size) {
    block_manager->Update(dst_addr, num_pages, KMemoryState::Stack,
                          KMemoryPermission::ReadAndWrite);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::Unmap(VAddr dst_addr, VAddr src_addr, std::size_t size) {
@@ -594,7 +597,7 @@ ResultCode KPageTable::Unmap(VAddr dst_addr, VAddr src_addr, std::size_t size) {
    block_manager->Update(src_addr, num_pages, src_state, KMemoryPermission::ReadAndWrite);
    block_manager->Update(dst_addr, num_pages, KMemoryState::Free);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::MapPages(VAddr addr, const KPageLinkedList& page_linked_list,
@@ -616,7 +619,7 @@ ResultCode KPageTable::MapPages(VAddr addr, const KPageLinkedList& page_linked_l
        cur_addr += node.GetNumPages() * PageSize;
    }

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::MapPages(VAddr addr, KPageLinkedList& page_linked_list, KMemoryState state,
@@ -638,7 +641,7 @@ ResultCode KPageTable::MapPages(VAddr addr, KPageLinkedList& page_linked_list, K

    block_manager->Update(addr, num_pages, state, perm);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::UnmapPages(VAddr addr, const KPageLinkedList& page_linked_list) {
@@ -655,7 +658,7 @@ ResultCode KPageTable::UnmapPages(VAddr addr, const KPageLinkedList& page_linked
        cur_addr += node.GetNumPages() * PageSize;
    }

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::UnmapPages(VAddr addr, KPageLinkedList& page_linked_list,
@@ -677,7 +680,7 @@ ResultCode KPageTable::UnmapPages(VAddr addr, KPageLinkedList& page_linked_list,

    block_manager->Update(addr, num_pages, state, KMemoryPermission::None);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::SetCodeMemoryPermission(VAddr addr, std::size_t size,
@@ -708,7 +711,7 @@ ResultCode KPageTable::SetCodeMemoryPermission(VAddr addr, std::size_t size,

    // Return early if there is nothing to change
    if (state == prev_state && perm == prev_perm) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
    }

    if ((prev_perm & KMemoryPermission::Execute) != (perm & KMemoryPermission::Execute)) {
@@ -725,7 +728,7 @@ ResultCode KPageTable::SetCodeMemoryPermission(VAddr addr, std::size_t size,

    block_manager->Update(addr, num_pages, state, perm);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 KMemoryInfo KPageTable::QueryInfoImpl(VAddr addr) {
@@ -758,7 +761,7 @@ ResultCode KPageTable::ReserveTransferMemory(VAddr addr, std::size_t size, KMemo

    block_manager->Update(addr, size / PageSize, state, perm, attribute | KMemoryAttribute::Locked);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::ResetTransferMemory(VAddr addr, std::size_t size) {
@@ -775,7 +778,7 @@ ResultCode KPageTable::ResetTransferMemory(VAddr addr, std::size_t size) {

    block_manager->Update(addr, size / PageSize, state, KMemoryPermission::ReadAndWrite);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::SetMemoryAttribute(VAddr addr, std::size_t size, KMemoryAttribute mask,
@@ -797,13 +800,13 @@ ResultCode KPageTable::SetMemoryAttribute(VAddr addr, std::size_t size, KMemoryA

    block_manager->Update(addr, size / PageSize, state, perm, attribute);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::SetHeapCapacity(std::size_t new_heap_capacity) {
    std::lock_guard lock{page_table_lock};
    heap_capacity = new_heap_capacity;
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultVal<VAddr> KPageTable::SetHeapSize(std::size_t size) {
@@ -911,7 +914,7 @@ ResultCode KPageTable::LockForDeviceAddressSpace(VAddr addr, std::size_t size) {
        },
        perm);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::UnlockForDeviceAddressSpace(VAddr addr, std::size_t size) {
@@ -934,13 +937,13 @@ ResultCode KPageTable::UnlockForDeviceAddressSpace(VAddr addr, std::size_t size)
        },
        perm);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::InitializeMemoryLayout(VAddr start, VAddr end) {
    block_manager = std::make_unique<KMemoryBlockManager>(start, end);

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 bool KPageTable::IsRegionMapped(VAddr address, u64 size) {
@@ -1006,7 +1009,7 @@ ResultCode KPageTable::Operate(VAddr addr, std::size_t num_pages, const KPageLin
        addr += size;
    }

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::Operate(VAddr addr, std::size_t num_pages, KMemoryPermission perm,
@@ -1033,7 +1036,7 @@ ResultCode KPageTable::Operate(VAddr addr, std::size_t num_pages, KMemoryPermiss
    default:
        UNREACHABLE();
    }
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 constexpr VAddr KPageTable::GetRegionAddress(KMemoryState state) const {
@@ -1164,7 +1167,7 @@ constexpr ResultCode KPageTable::CheckMemoryState(const KMemoryInfo& info, KMemo
        return ResultInvalidCurrentMemory;
    }

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KPageTable::CheckMemoryState(KMemoryState* out_state, KMemoryPermission* out_perm,
@@ -1223,7 +1226,7 @@ ResultCode KPageTable::CheckMemoryState(KMemoryState* out_state, KMemoryPermissi
        *out_attr = first_attr & static_cast<KMemoryAttribute>(~ignore_attr);
    }

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 } // namespace Kernel
--- a/src/core/hle/kernel/k_port.cpp
+++ b/src/core/hle/kernel/k_port.cpp
@@ -59,7 +59,7 @@ ResultCode KPort::EnqueueSession(KServerSession* session) {
    server.EnqueueSession(session);
    server.GetSessionRequestHandler()->ClientConnected(server.AcceptSession());

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 } // namespace Kernel
--- a/src/core/hle/kernel/k_process.cpp
+++ b/src/core/hle/kernel/k_process.cpp
@@ -142,7 +142,7 @@ ResultCode KProcess::Initialize(KProcess* process, Core::System& system, std::st
    // Open a reference to the resource limit.
    process->resource_limit->Open();

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 KResourceLimit* KProcess::GetResourceLimit() const {
@@ -201,17 +201,15 @@ bool KProcess::ReleaseUserException(KThread* thread) {

        // Remove waiter thread.
        s32 num_waiters{};
-        KThread* next = thread->RemoveWaiterByKey(
-            std::addressof(num_waiters),
-            reinterpret_cast<uintptr_t>(std::addressof(exception_thread)));
-        if (next != nullptr) {
-            if (next->GetState() == ThreadState::Waiting) {
-                next->SetState(ThreadState::Runnable);
-            } else {
-                KScheduler::SetSchedulerUpdateNeeded(kernel);
-            }
+        if (KThread* next = thread->RemoveWaiterByKey(
+                std::addressof(num_waiters),
+                reinterpret_cast<uintptr_t>(std::addressof(exception_thread)));
+            next != nullptr) {
+            next->SetState(ThreadState::Runnable);
        }

+        KScheduler::SetSchedulerUpdateNeeded(kernel);
+
        return true;
    } else {
        return false;
@@ -258,7 +256,7 @@ ResultCode KProcess::AddSharedMemory(KSharedMemory* shmem, [[maybe_unused]] VAdd
    // Open a reference to the shared memory.
    shmem->Open();

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 void KProcess::RemoveSharedMemory(KSharedMemory* shmem, [[maybe_unused]] VAddr address,
@@ -291,7 +289,7 @@ ResultCode KProcess::Reset() {

    // Clear signaled.
    is_signaled = false;
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata,
@@ -524,7 +522,7 @@ ResultCode KProcess::AllocateMainThreadStack(std::size_t stack_size) {

    main_thread_stack_top += main_thread_stack_size;

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 } // namespace Kernel
--- a/src/core/hle/kernel/k_process.h
+++ b/src/core/hle/kernel/k_process.h
@@ -310,7 +310,7 @@ public:
     *
     * @param metadata The provided metadata to load process specific info from.
     *
-     * @returns RESULT_SUCCESS if all relevant metadata was able to be
+     * @returns ResultSuccess if all relevant metadata was able to be
     *          loaded and parsed. Otherwise, an error code is returned.
     */
    ResultCode LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std::size_t code_size);
--- a/src/core/hle/kernel/k_readable_event.cpp
+++ b/src/core/hle/kernel/k_readable_event.cpp
@@ -36,13 +36,13 @@ ResultCode KReadableEvent::Signal() {
        NotifyAvailable();
    }

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KReadableEvent::Clear() {
    Reset();

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 ResultCode KReadableEvent::Reset() {
@@ -53,7 +53,7 @@ ResultCode KReadableEvent::Reset() {
    }

    is_signaled = false;
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 } // namespace Kernel
--- a/src/core/hle/kernel/k_readable_event.h
+++ b/src/core/hle/kernel/k_readable_event.h
@@ -21,9 +21,9 @@ public:
    explicit KReadableEvent(KernelCore& kernel_);
    ~KReadableEvent() override;

-    void Initialize(KEvent* parent_, std::string&& name_) {
+    void Initialize(KEvent* parent_event_, std::string&& name_) {
        is_signaled = false;
-        parent = parent_;
+        parent = parent_event_;
        name = std::move(name_);
    }

--- a/src/core/hle/kernel/k_resource_limit.cpp
+++ b/src/core/hle/kernel/k_resource_limit.cpp
@@ -79,8 +79,9 @@ ResultCode KResourceLimit::SetLimitValue(LimitableResource which, s64 value) {
    R_UNLESS(current_values[index] <= value, ResultInvalidState);

    limit_values[index] = value;
+    peak_values[index] = current_values[index];

-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }

 bool KResourceLimit::Reserve(LimitableResource which, s64 value) {
@@ -117,7 +118,7 @@ bool KResourceLimit::Reserve(LimitableResource which, s64 value, s64 timeout) {
        if (current_hints[index] + value <= limit_values[index] &&
            (timeout < 0 || core_timing->GetGlobalTimeNs().count() < timeout)) {
            waiter_count++;
-            cond_var.Wait(&lock, timeout);
+            cond_var.Wait(&lock, timeout, false);
            waiter_count--;
        } else {
            break;
--- a/src/core/hle/kernel/k_server_port.cpp
+++ b/src/core/hle/kernel/k_server_port.cpp
@@ -17,9 +17,9 @@ namespace Kernel {
 KServerPort::KServerPort(KernelCore& kernel_) : KSynchronizationObject{kernel_} {}
 KServerPort::~KServerPort() = default;

-void KServerPort::Initialize(KPort* parent_, std::string&& name_) {
+void KServerPort::Initialize(KPort* parent_port_, std::string&& name_) {
    // Set member variables.
-    parent = parent_;
+    parent = parent_port_;
    name = std::move(name_);
 }

--- a/Show More
+++ b/Show More