SDL: Fix missing header

This fixes linux and mingw builds.

.ci/scripts/linux/docker.sh

@@ -11,4 +11,5 @@ ninja
 
 ccache -s
 
-ctest -VV -C Release
+# Ignore zlib's tests, since they aren't gated behind a CMake option.
+ctest -VV -E "(example|example64)" -C Release

.ci/scripts/merge/apply-patches-by-label-private.py

@@ -0,0 +1,45 @@
+# Download all pull requests as patches that match a specific label
+# Usage: python download-patches-by-label.py <Label to Match> <Root Path Folder to DL to>
+
+import requests, sys, json, shutil, subprocess, os, traceback
+
+org = os.getenv("PRIVATEMERGEORG", "yuzu-emu")
+repo = os.getenv("PRIVATEMERGEREPO", "yuzu-private")
+tagline = sys.argv[3]
+user = sys.argv[1]
+
+dl_list = {}
+
+TAG_NAME = sys.argv[2]
+
+def check_individual(repo_id, pr_id):
+    url = 'https://%sdev.azure.com/%s/%s/_apis/git/repositories/%s/pullRequests/%s/labels?api-version=5.1-preview.1' % (user, org, repo, repo_id, pr_id)
+    response = requests.get(url)
+    if (response.ok):
+        try:
+            js = response.json()
+            return any(tag.get('name') == TAG_NAME for tag in js['value'])
+        except:
+            return False
+    return False
+
+def merge_pr(pn, ref):
+    print("Matched PR# %s" % pn)
+    print(subprocess.check_output(["git", "fetch", "https://%sdev.azure.com/%s/_git/%s" % (user, org, repo), ref, "-f"]))
+    print(subprocess.check_output(["git", "merge", "--squash", 'origin/' + ref.replace('refs/heads/','')]))
+    print(subprocess.check_output(["git", "commit", "-m\"Merge %s PR %s\"" % (tagline, pn)]))
+
+def main():
+    url = 'https://%sdev.azure.com/%s/%s/_apis/git/pullrequests?api-version=5.1' % (user, org, repo)
+    response = requests.get(url)
+    if (response.ok):
+        js = response.json()
+        tagged_prs = filter(lambda pr: check_individual(pr['repository']['id'], pr['pullRequestId']), js['value'])
+        map(lambda pr: merge_pr(pr['pullRequestId'], pr['sourceRefName']), tagged_prs)
+
+if __name__ == '__main__':
+    try:
+        main()
+    except:
+        traceback.print_exc(file=sys.stdout)
+        sys.exit(-1)

.ci/scripts/merge/apply-patches-by-label.py

@@ -1,7 +1,9 @@
 # Download all pull requests as patches that match a specific label
 # Usage: python download-patches-by-label.py <Label to Match> <Root Path Folder to DL to>
 
-import requests, sys, json, urllib3.request, shutil, subprocess
+import requests, sys, json, urllib3.request, shutil, subprocess, os
+
+tagline = sys.argv[2]
 
 http = urllib3.PoolManager()
 dl_list = {}
@@ -12,17 +14,23 @@ def check_individual(labels):
             return True
     return False
 
-try:
-    url = 'https://api.github.com/repos/yuzu-emu/yuzu/pulls'
+def do_page(page):
+    url = 'https://api.github.com/repos/yuzu-emu/yuzu/pulls?page=%s' % page
     response = requests.get(url)
     if (response.ok):
         j = json.loads(response.content)
+        if j == []:
+            return
         for pr in j:
             if (check_individual(pr["labels"])):
                 pn = pr["number"]
                 print("Matched PR# %s" % pn)
                 print(subprocess.check_output(["git", "fetch", "https://github.com/yuzu-emu/yuzu.git", "pull/%s/head:pr-%s" % (pn, pn), "-f"]))
                 print(subprocess.check_output(["git", "merge", "--squash", "pr-%s" % pn]))
-                print(subprocess.check_output(["git", "commit", "-m\"Merge PR %s\"" % pn]))
+                print(subprocess.check_output(["git", "commit", "-m\"Merge %s PR %s\"" % (tagline, pn)]))
+
+try:
+    for i in range(1,30):
+        do_page(i)
 except:
     sys.exit(-1)

.ci/scripts/windows/upload.ps1

@@ -0,0 +1,32 @@
+$GITDATE = $(git show -s --date=short --format='%ad') -replace "-",""
+$GITREV = $(git show -s --format='%h')
+$RELEASE_DIST = "yuzu-windows-msvc"
+
+$MSVC_BUILD_ZIP = "yuzu-windows-msvc-$GITDATE-$GITREV.zip" -replace " ", ""
+$MSVC_BUILD_PDB = "yuzu-windows-msvc-$GITDATE-$GITREV-debugsymbols.zip" -replace " ", ""
+$MSVC_SEVENZIP = "yuzu-windows-msvc-$GITDATE-$GITREV.7z" -replace " ", ""
+
+$env:BUILD_ZIP = $MSVC_BUILD_ZIP
+$env:BUILD_SYMBOLS = $MSVC_BUILD_PDB
+$env:BUILD_UPDATE = $MSVC_SEVENZIP
+
+$BUILD_DIR = ".\build\bin\Release"
+
+mkdir pdb
+Get-ChildItem "$BUILD_DIR\" -Recurse -Filter "*.pdb" | Copy-Item -destination .\pdb
+7z a -tzip $MSVC_BUILD_PDB .\pdb\*.pdb
+rm "$BUILD_DIR\*.pdb"
+mkdir $RELEASE_DIST
+mkdir "artifacts"
+
+Copy-Item "$BUILD_DIR\*" -Destination $RELEASE_DIST -Recurse
+rm "$RELEASE_DIST\*.exe"
+Get-ChildItem "$BUILD_DIR" -Recurse -Filter "yuzu*.exe" | Copy-Item -destination $RELEASE_DIST
+Get-ChildItem "$BUILD_DIR" -Recurse -Filter "QtWebEngineProcess*.exe" | Copy-Item -destination $RELEASE_DIST
+Copy-Item .\license.txt -Destination $RELEASE_DIST
+Copy-Item .\README.md -Destination $RELEASE_DIST
+7z a -tzip $MSVC_BUILD_ZIP $RELEASE_DIST\*
+7z a $MSVC_SEVENZIP $RELEASE_DIST
+
+Get-ChildItem . -Filter "*.zip" | Copy-Item -destination "artifacts"
+Get-ChildItem . -Filter "*.7z" | Copy-Item -destination "artifacts"

.ci/templates/build-mock.yml

@@ -0,0 +1,5 @@
+steps:
+  - script: mkdir artifacts || echo 'X' > artifacts/T1.txt
+  - publish: artifacts
+    artifact: 'yuzu-$(BuildName)-$(BuildSuffix)'
+    displayName: 'Upload Artifacts'

.ci/templates/build-msvc.yml

@@ -0,0 +1,21 @@
+parameters:
+  artifactSource: 'true'
+  cache: 'false'
+
+steps:
+- script: mkdir build && cd build && set DATE=`date '+%Y.%m.%d'` && set CI=true && set AZURE_REPO_NAME=yuzu-emu/yuzu-$(BuildName) && set AZURE_REPO_TAG=$(BuildName)-$DATE && cmake -G "Visual Studio 15 2017 Win64" --config Release -DYUZU_USE_BUNDLED_QT=1 -DYUZU_USE_BUNDLED_SDL2=1 -DYUZU_USE_BUNDLED_UNICORN=1 -DYUZU_USE_QT_WEB_ENGINE=ON -DENABLE_COMPATIBILITY_LIST_DOWNLOAD=ON -DYUZU_ENABLE_COMPATIBILITY_REPORTING=${COMPAT} -DUSE_DISCORD_PRESENCE=ON .. && cd ..
+  displayName: 'Configure CMake'
+- task: MSBuild@1
+  displayName: 'Build'
+  inputs:
+    solution: 'build/yuzu.sln'
+    maximumCpuCount: true
+    configuration: release
+- task: PowerShell@2
+  displayName: 'Package Artifacts'
+  inputs:
+    targetType: 'filePath'
+    filePath: './.ci/scripts/windows/upload.ps1'
+- publish: artifacts
+  artifact: 'yuzu-$(BuildName)-windows-msvc'
+  displayName: 'Upload Artifacts'

.ci/templates/build-single.yml

@@ -7,14 +7,13 @@ steps:
   displayName: 'Prepare Environment'
   inputs:
     dockerVersion: '17.09.0-ce'
-- ${{ if eq(parameters.cache, 'true') }}:
-  - task: CacheBeta@0
-    displayName: 'Cache Build System'
-    inputs:
-      key: yuzu-v1-$(BuildName)-$(BuildSuffix)-$(CacheSuffix)
-      path: $(System.DefaultWorkingDirectory)/ccache
-      cacheHitVar: CACHE_RESTORED
-- script: chmod a+x ./.ci/scripts/$(ScriptFolder)/exec.sh && ./.ci/scripts/$(ScriptFolder)/exec.sh
+- task: CacheBeta@0
+  displayName: 'Cache Build System'
+  inputs:
+    key: yuzu-v1-$(BuildName)-$(BuildSuffix)-$(CacheSuffix)
+    path: $(System.DefaultWorkingDirectory)/ccache
+    cacheHitVar: CACHE_RESTORED
+- script: export DATE=`date '+%Y.%m.%d'` && export CI=true && export AZURE_REPO_NAME=yuzu-emu/yuzu-$(BuildName) && export AZURE_REPO_TAG=$(BuildName)-$DATE && chmod a+x ./.ci/scripts/$(ScriptFolder)/exec.sh && ./.ci/scripts/$(ScriptFolder)/exec.sh
   displayName: 'Build'
 - script: chmod a+x ./.ci/scripts/$(ScriptFolder)/upload.sh && RELEASE_NAME=$(BuildName) ./.ci/scripts/$(ScriptFolder)/upload.sh
   displayName: 'Package Artifacts'

.ci/templates/merge-private.yml

@@ -0,0 +1,47 @@
+jobs:
+- job: merge
+  displayName: 'pull requests'
+  steps:
+  - checkout: self
+    submodules: recursive
+  - template: ./mergebot-private.yml
+    parameters:
+      matchLabel: '$(BuildName)-merge'
+      matchLabelPublic: '$(PublicBuildName)-merge'
+  - task: ArchiveFiles@2
+    displayName: 'Package Source'
+    inputs:
+      rootFolderOrFile: '$(System.DefaultWorkingDirectory)'
+      includeRootFolder: false
+      archiveType: '7z'
+      archiveFile: '$(Build.ArtifactStagingDirectory)/yuzu-$(BuildName)-source.7z'
+  - task: PublishPipelineArtifact@1
+    displayName: 'Upload Artifacts'
+    inputs:
+      targetPath: '$(Build.ArtifactStagingDirectory)/yuzu-$(BuildName)-source.7z'
+      artifact: 'yuzu-$(BuildName)-source'
+      replaceExistingArchive: true
+- job: upload_source
+  displayName: 'upload'
+  dependsOn: merge
+  steps:
+  - template: ./sync-source.yml
+    parameters:
+      artifactSource: 'true'
+      needSubmodules: 'true'
+  - script: chmod a+x $(System.DefaultWorkingDirectory)/.ci/scripts/merge/yuzubot-git-config.sh && $(System.DefaultWorkingDirectory)/.ci/scripts/merge/yuzubot-git-config.sh
+    displayName: 'Apply Git Configuration'
+  - script: git tag -a $(BuildName)-$(Build.BuildId) -m "yuzu $(BuildName) $(Build.BuildNumber) $(Build.DefinitionName)"
+    displayName: 'Tag Source'
+  - script: git remote add other $(GitRepoPushChangesURL)
+    displayName: 'Register Repository'
+  - script: git push --follow-tags --force other HEAD:$(GitPushBranch)
+    displayName: 'Update Code'
+  - script: git rev-list -n 1 $(BuildName)-$(Build.BuildId) > $(Build.ArtifactStagingDirectory)/tag-commit.sha
+    displayName: 'Calculate Release Point'
+  - task: PublishPipelineArtifact@1
+    displayName: 'Upload Release Point'
+    inputs:
+      targetPath: '$(Build.ArtifactStagingDirectory)/tag-commit.sha'
+      artifact: 'yuzu-$(BuildName)-release-point'
+      replaceExistingArchive: true

.ci/templates/mergebot-private.yml

@@ -0,0 +1,30 @@
+parameters:
+  matchLabel: 'dummy-merge'
+  matchLabelPublic: 'dummy-merge'
+
+steps:
+  - script: mkdir $(System.DefaultWorkingDirectory)/patches && pip install requests urllib3
+    displayName: 'Prepare Environment'
+  - script: chmod a+x $(System.DefaultWorkingDirectory)/.ci/scripts/merge/yuzubot-git-config.sh && $(System.DefaultWorkingDirectory)/.ci/scripts/merge/yuzubot-git-config.sh
+    displayName: 'Apply Git Configuration'
+  - task: PythonScript@0
+    displayName: 'Discover, Download, and Apply Patches (Mainline)'
+    inputs:
+      scriptSource: 'filePath'
+      scriptPath: '.ci/scripts/merge/apply-patches-by-label.py'
+      arguments: '${{ parameters.matchLabelPublic }} $(MergeTaglinePublic) patches-public'
+      workingDirectory: '$(System.DefaultWorkingDirectory)'
+  - task: PythonScript@0
+    displayName: 'Discover, Download, and Apply Patches (Patreon Public)'
+    inputs:
+      scriptSource: 'filePath'
+      scriptPath: '.ci/scripts/merge/apply-patches-by-label.py'
+      arguments: '${{ parameters.matchLabel }} "$(MergeTaglinePrivate) Public" patches-mixed-public'
+      workingDirectory: '$(System.DefaultWorkingDirectory)'
+  - task: PythonScript@0
+    displayName: 'Discover, Download, and Apply Patches (Patreon Private)'
+    inputs:
+      scriptSource: 'filePath'
+      scriptPath: '.ci/scripts/merge/apply-patches-by-label-private.py'
+      arguments: '$(PrivateMergeUser) ${{ parameters.matchLabel }} "$(MergeTaglinePrivate) Private" patches-private'
+      workingDirectory: '$(System.DefaultWorkingDirectory)'

.ci/templates/mergebot.yml

@@ -11,5 +11,5 @@ steps:
     inputs:
       scriptSource: 'filePath'
       scriptPath: '.ci/scripts/merge/apply-patches-by-label.py'
-      arguments: '${{ parameters.matchLabel }} patches'
+      arguments: '${{ parameters.matchLabel }} Tagged patches'
       workingDirectory: '$(System.DefaultWorkingDirectory)'

.ci/templates/release-download.yml

@@ -0,0 +1,13 @@
+steps:
+  - task: DownloadPipelineArtifact@2
+    displayName: 'Download Windows Release'
+    inputs:
+      artifactName: 'yuzu-$(BuildName)-windows-msvc'
+      buildType: 'current'
+      targetPath: '$(Build.ArtifactStagingDirectory)'
+  - task: DownloadPipelineArtifact@2
+    displayName: 'Download Linux Release'
+    inputs:
+      artifactName: 'yuzu-$(BuildName)-linux'
+      buildType: 'current'
+      targetPath: '$(Build.ArtifactStagingDirectory)'

.ci/templates/release-github.yml

@@ -0,0 +1,11 @@
+steps:
+  - template: ./release-download.yml
+  - task: GitHubRelease@0
+    inputs:
+      action: 'create'
+      title: 'yuzu $(BuildName) #$(Build.BuildId)'
+      assets: '$(Build.ArtifactStagingDirectory)/*'
+      gitHubConnection: $(GitHubReleaseConnectionName)
+      repositoryName: '$(Build.Repository.Name)'
+      target: '$(Build.SourceVersion)'
+      tagSource: 'auto'

.ci/templates/release-universal.yml

@@ -0,0 +1,10 @@
+steps:
+  - template: ./release-download.yml
+  - task: UniversalPackages@0
+    displayName: Publish Artifacts
+    inputs:
+      command: publish
+      publishDirectory: '$(Build.ArtifactStagingDirectory)'
+      vstsFeedPublish: 'yuzu-$(BuildName)'
+      vstsFeedPackagePublish: 'main'
+      packagePublishDescription: 'Yuzu Windows and Linux Executable Packages'

.ci/yuzu-mainline-step1.yml

@@ -0,0 +1,8 @@
+trigger:
+- master
+
+stages:
+- stage: merge
+  displayName: 'merge'
+  jobs:
+  - template: ./templates/merge.yml

.ci/yuzu-mainline-step2.yml

@@ -0,0 +1,63 @@
+trigger:
+- master
+
+stages:
+- stage: format
+  displayName: 'format'
+  jobs:
+  - job: format
+    displayName: 'clang'
+    pool:
+      vmImage: ubuntu-latest
+    steps:
+    - template: ./templates/format-check.yml
+- stage: build
+  dependsOn: format
+  displayName: 'build'
+  jobs:
+  - job: build
+    displayName: 'standard'
+    pool:
+      vmImage: ubuntu-latest
+    strategy:
+      maxParallel: 10
+      matrix:
+        linux:
+          BuildSuffix: 'linux'
+          ScriptFolder: 'linux'
+    steps:
+    - template: ./templates/sync-source.yml
+      parameters:
+        artifactSource: $(parameters.artifactSource)
+        needSubmodules: 'true'
+    - template: ./templates/build-single.yml
+      parameters:
+        artifactSource: 'false'
+        cache: 'true'
+- stage: build_win
+  dependsOn: format
+  displayName: 'build-windows'
+  jobs:
+  - job: build
+    displayName: 'msvc'
+    pool:
+      vmImage: vs2017-win2016
+    steps:
+    - template: ./templates/sync-source.yml
+      parameters:
+        artifactSource: $(parameters.artifactSource)
+        needSubmodules: 'true'
+    - template: ./templates/build-msvc.yml
+      parameters:
+        artifactSource: 'false'
+        cache: 'true'
+- stage: release
+  displayName: 'Release'
+  dependsOn:
+  - build
+  - build_win
+  jobs:
+  - job: github
+    displayName: 'GitHub Release'
+    steps:
+    - template: ./templates/release-github.yml

.ci/yuzu-mainline.yml

@@ -1,25 +0,0 @@
-trigger:
-- master
-
-stages:
-- stage: merge
-  displayName: 'merge'
-  jobs:
-  - template: ./templates/merge.yml
-- stage: format
-  dependsOn: merge
-  displayName: 'format'
-  jobs:
-  - job: format
-    displayName: 'clang'
-    pool:
-      vmImage: ubuntu-latest
-    steps:
-    - template: ./templates/format-check.yml
-- stage: build
-  displayName: 'build'
-  dependsOn: format
-  jobs:
-  - template: ./templates/build-standard.yml
-    parameters:
-      cache: 'true'

.ci/yuzu-patreon-step1.yml

@@ -0,0 +1,8 @@
+trigger:
+- master
+
+stages:
+- stage: merge
+  displayName: 'merge'
+  jobs:
+  - template: ./templates/merge-private.yml

.ci/yuzu-patreon-step2.yml

@@ -0,0 +1,30 @@
+trigger:
+- master
+
+stages:
+- stage: format
+  displayName: 'format'
+  jobs:
+  - job: format
+    displayName: 'clang'
+    pool:
+      vmImage: ubuntu-latest
+    steps:
+    - template: ./templates/format-check.yml
+- stage: build
+  dependsOn: format
+  displayName: 'build'
+  jobs:
+  - job: build
+    displayName: 'windows-msvc'
+    pool:
+      vmImage: vs2017-win2016
+    steps:
+    - template: ./templates/sync-source.yml
+      parameters:
+        artifactSource: $(parameters.artifactSource)
+        needSubmodules: 'true'
+    - template: ./templates/build-msvc.yml
+      parameters:
+        artifactSource: 'false'
+        cache: $(parameters.cache)

.ci/yuzu-patreon.yml

@@ -1,19 +0,0 @@
-# Starter pipeline
-# Start with a minimal pipeline that you can customize to build and deploy your code.
-# Add steps that build, run tests, deploy, and more:
-# https://aka.ms/yaml
-
-trigger:
-- master
-
-pool:
-  vmImage: 'ubuntu-latest'
-
-steps:
-- script: echo Hello, world!
-  displayName: 'Run a one-line script'
-
-- script: |
-    echo Add other tasks to build, test, and deploy your project.
-    echo See https://aka.ms/yaml
-  displayName: 'Run a multi-line script'

.gitmodules

@@ -46,3 +46,9 @@
 [submodule "sirit"]
     path = externals/sirit
     url = https://github.com/ReinUsesLisp/sirit
+[submodule "libzip"]
+    path = externals/libzip
+    url = https://github.com/DarkLordZach/libzip
+[submodule "zlib"]
+    path = externals/zlib
+    url = https://github.com/madler/zlib

CMakeLists.txt

@@ -21,6 +21,8 @@ option(YUZU_USE_BUNDLED_UNICORN "Build/Download bundled Unicorn" ON)
 
 option(YUZU_USE_QT_WEB_ENGINE "Use QtWebEngine for web applet implementation" OFF)
 
+option(YUZU_ENABLE_BOXCAT "Enable the Boxcat service, a yuzu high-level implementation of BCAT" ON)
+
 option(ENABLE_CUBEB "Enables the cubeb audio backend" ON)
 
 option(ENABLE_VULKAN "Enables Vulkan backend" ON)

README.md

@@ -1,14 +1,15 @@
 yuzu emulator
 =============
 [![Travis CI Build Status](https://travis-ci.org/yuzu-emu/yuzu.svg?branch=master)](https://travis-ci.org/yuzu-emu/yuzu)
-[![AppVeyor CI Build Status](https://ci.appveyor.com/api/projects/status/77k97svb2usreu68?svg=true)](https://ci.appveyor.com/project/bunnei/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/)
 
 yuzu is an experimental open-source emulator for the Nintendo Switch from the creators of [Citra](https://citra-emu.org/).
 
-It is written in C++ with portability in mind, with builds actively maintained for Windows, Linux and macOS. The emulator is currently only useful for homebrew development and research purposes.
+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.
 
-yuzu only emulates a subset of Switch hardware and therefore is generally only useful for running/debugging homebrew applications. yuzu can boot some games, to varying degrees of success.
+yuzu only emulates a subset of Switch hardware and therefore most commercial games **do not** run at full speed or are not fully functional.
+
+Do you want to check which games are compatible and which ones are not? Please visit our [Compatibility page](https://yuzu-emu.org/game/)!
 
 yuzu is licensed under the GPLv2 (or any later version). Refer to the license.txt file included.
 

externals/CMakeLists.txt

@@ -77,6 +77,12 @@ if (ENABLE_VULKAN)
     add_subdirectory(sirit)
 endif()
 
+# zlib
+add_subdirectory(zlib EXCLUDE_FROM_ALL)
+
+# libzip
+add_subdirectory(libzip EXCLUDE_FROM_ALL)
+
 if (ENABLE_WEB_SERVICE)
     # LibreSSL
     set(LIBRESSL_SKIP_INSTALL ON CACHE BOOL "")

license.txt

@@ -341,15 +341,24 @@ Public License instead of this License.
 
 The icons used in this project have the following licenses:
 
-Icon Name                          | License       | Origin/Author
----                                | ---           | ---
-checked.png                        | Free for non-commercial use
-failed.png                         | Free for non-commercial use
-lock.png                           | CC BY-ND 3.0  | https://icons8.com
-plus_folder.png                    | CC BY-ND 3.0  | https://icons8.com
-bad_folder.png                     | CC BY-ND 3.0  | https://icons8.com
-chip.png                           | CC BY-ND 3.0  | https://icons8.com
-folder.png                         | CC BY-ND 3.0  | https://icons8.com
-plus.png (Default, Dark)           | CC0 1.0       | Designed by BreadFish64 from the Citra team
-plus.png (Colorful, Colorful Dark) | CC BY-ND 3.0  | https://icons8.com
-sd_card.png | CC BY-ND 3.0 | https://icons8.com
+Icon Name                                   | License       | Origin/Author
+---                                         | ---           | ---
+checked.png                                 | Free for non-commercial use
+failed.png                                  | Free for non-commercial use
+lock.png                                    | CC BY-ND 3.0  | https://icons8.com
+plus_folder.png (Default, Dark)             | CC BY-ND 3.0  | https://icons8.com
+bad_folder.png (Default, Dark)              | CC BY-ND 3.0  | https://icons8.com
+chip.png (Default, Dark)                    | CC BY-ND 3.0  | https://icons8.com
+folder.png (Default, Dark)                  | CC BY-ND 3.0  | https://icons8.com
+plus.png (Default, Dark)                    | CC0 1.0       | Designed by BreadFish64 from the Citra team
+sd_card.png (Default, Dark)                 | CC BY-ND 3.0  | https://icons8.com
+plus_folder.png (Colorful, Colorful Dark)   | CC BY-ND 3.0  | https://icons8.com
+bad_folder.png (Colorful, Colorful Dark)    | CC BY-ND 3.0  | https://icons8.com
+chip.png (Colorful, Colorful Dark)          | CC BY-ND 3.0  | https://icons8.com
+folder.png (Colorful, Colorful Dark)        | CC BY-ND 3.0  | https://icons8.com
+plus.png (Colorful, Colorful Dark)          | CC BY-ND 3.0  | https://icons8.com
+sd_card.png (Colorful, Colorful Dark)       | CC BY-ND 3.0  | https://icons8.com
+
+Note:
+Some icons are different in different themes, and they are separately listed
+only when they have different licenses/origins.

src/audio_core/audio_renderer.cpp

@@ -107,6 +107,11 @@ Stream::State AudioRenderer::GetStreamState() const {
     return stream->GetState();
 }
 
+static constexpr u32 VersionFromRevision(u32_le rev) {
+    // "REV7" -> 7
+    return ((rev >> 24) & 0xff) - 0x30;
+}
+
 std::vector<u8> AudioRenderer::UpdateAudioRenderer(const std::vector<u8>& input_params) {
     // Copy UpdateDataHeader struct
     UpdateDataHeader config{};
@@ -166,6 +171,11 @@ std::vector<u8> AudioRenderer::UpdateAudioRenderer(const std::vector<u8>& input_
     // Copy output header
     UpdateDataHeader response_data{worker_params};
     std::vector<u8> output_params(response_data.total_size);
+    const auto audren_revision = VersionFromRevision(config.revision);
+    if (audren_revision >= 5) {
+        response_data.frame_count = 0x10;
+        response_data.total_size += 0x10;
+    }
     std::memcpy(output_params.data(), &response_data, sizeof(UpdateDataHeader));
 
     // Copy output memory pool entries

src/audio_core/audio_renderer.h

@@ -194,21 +194,24 @@ struct UpdateDataHeader {
         mixes_size = 0x0;
         sinks_size = config.sink_count * 0x20;
         performance_manager_size = 0x10;
+        frame_count = 0;
         total_size = sizeof(UpdateDataHeader) + behavior_size + memory_pools_size + voices_size +
                      effects_size + sinks_size + performance_manager_size;
     }
 
-    u32_le revision;
-    u32_le behavior_size;
-    u32_le memory_pools_size;
-    u32_le voices_size;
-    u32_le voice_resource_size;
-    u32_le effects_size;
-    u32_le mixes_size;
-    u32_le sinks_size;
-    u32_le performance_manager_size;
-    INSERT_PADDING_WORDS(6);
-    u32_le total_size;
+    u32_le revision{};
+    u32_le behavior_size{};
+    u32_le memory_pools_size{};
+    u32_le voices_size{};
+    u32_le voice_resource_size{};
+    u32_le effects_size{};
+    u32_le mixes_size{};
+    u32_le sinks_size{};
+    u32_le performance_manager_size{};
+    INSERT_PADDING_WORDS(1);
+    u32_le frame_count{};
+    INSERT_PADDING_WORDS(4);
+    u32_le total_size{};
 };
 static_assert(sizeof(UpdateDataHeader) == 0x40, "UpdateDataHeader has wrong size");
 

src/common/CMakeLists.txt

@@ -10,6 +10,9 @@ if (DEFINED ENV{CI})
   elseif(DEFINED ENV{APPVEYOR})
     set(BUILD_REPOSITORY $ENV{APPVEYOR_REPO_NAME})
     set(BUILD_TAG $ENV{APPVEYOR_REPO_TAG_NAME})
+  elseif(DEFINED ENV{AZURE})
+    set(BUILD_REPOSITORY $ENV{AZURE_REPO_NAME})
+    set(BUILD_TAG $ENV{AZURE_REPO_TAG})
   endif()
 endif()
 add_custom_command(OUTPUT scm_rev.cpp

src/common/logging/backend.cpp

@@ -255,6 +255,7 @@ void DebuggerBackend::Write(const Entry& entry) {
     CLS(Input)                                                                                     \
     CLS(Network)                                                                                   \
     CLS(Loader)                                                                                    \
+    CLS(CheatEngine)                                                                               \
     CLS(Crypto)                                                                                    \
     CLS(WebService)
 

src/common/logging/log.h

@@ -117,6 +117,7 @@ enum class Class : ClassType {
     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

src/core/CMakeLists.txt

@@ -1,3 +1,9 @@
+if (YUZU_ENABLE_BOXCAT)
+    set(BCAT_BOXCAT_ADDITIONAL_SOURCES hle/service/bcat/backend/boxcat.cpp hle/service/bcat/backend/boxcat.h)
+else()
+    set(BCAT_BOXCAT_ADDITIONAL_SOURCES)
+endif()
+
 add_library(core STATIC
     arm/arm_interface.h
     arm/arm_interface.cpp
@@ -33,8 +39,6 @@ add_library(core STATIC
     file_sys/bis_factory.h
     file_sys/card_image.cpp
     file_sys/card_image.h
-    file_sys/cheat_engine.cpp
-    file_sys/cheat_engine.h
     file_sys/content_archive.cpp
     file_sys/content_archive.h
     file_sys/control_metadata.cpp
@@ -84,6 +88,8 @@ add_library(core STATIC
     file_sys/vfs_concat.h
     file_sys/vfs_layered.cpp
     file_sys/vfs_layered.h
+    file_sys/vfs_libzip.cpp
+    file_sys/vfs_libzip.h
     file_sys/vfs_offset.cpp
     file_sys/vfs_offset.h
     file_sys/vfs_real.cpp
@@ -243,6 +249,9 @@ add_library(core STATIC
     hle/service/audio/errors.h
     hle/service/audio/hwopus.cpp
     hle/service/audio/hwopus.h
+    hle/service/bcat/backend/backend.cpp
+    hle/service/bcat/backend/backend.h
+    ${BCAT_BOXCAT_ADDITIONAL_SOURCES}
     hle/service/bcat/bcat.cpp
     hle/service/bcat/bcat.h
     hle/service/bcat/module.cpp
@@ -477,6 +486,11 @@ add_library(core STATIC
     loader/nsp.h
     loader/xci.cpp
     loader/xci.h
+    memory/cheat_engine.cpp
+    memory/cheat_engine.h
+    memory/dmnt_cheat_types.h
+    memory/dmnt_cheat_vm.cpp
+    memory/dmnt_cheat_vm.h
     memory.cpp
     memory.h
     memory_setup.h
@@ -496,6 +510,15 @@ create_target_directory_groups(core)
 
 target_link_libraries(core PUBLIC common PRIVATE audio_core video_core)
 target_link_libraries(core PUBLIC Boost::boost PRIVATE fmt json-headers mbedtls opus unicorn open_source_archives)
+
+if (YUZU_ENABLE_BOXCAT)
+    get_directory_property(OPENSSL_LIBS
+        DIRECTORY ${PROJECT_SOURCE_DIR}/externals/libressl
+        DEFINITION OPENSSL_LIBS)
+    target_compile_definitions(core PRIVATE -DCPPHTTPLIB_OPENSSL_SUPPORT -DYUZU_ENABLE_BOXCAT)
+    target_link_libraries(core PRIVATE httplib json-headers ${OPENSSL_LIBS} zip)
+endif()
+
 if (ENABLE_WEB_SERVICE)
     target_compile_definitions(core PRIVATE -DENABLE_WEB_SERVICE)
     target_link_libraries(core PRIVATE web_service)

src/core/core.cpp

@@ -14,8 +14,14 @@
 #include "core/core_cpu.h"
 #include "core/core_timing.h"
 #include "core/cpu_core_manager.h"
+#include "core/file_sys/bis_factory.h"
+#include "core/file_sys/card_image.h"
 #include "core/file_sys/mode.h"
+#include "core/file_sys/patch_manager.h"
 #include "core/file_sys/registered_cache.h"
+#include "core/file_sys/romfs_factory.h"
+#include "core/file_sys/savedata_factory.h"
+#include "core/file_sys/sdmc_factory.h"
 #include "core/file_sys/vfs_concat.h"
 #include "core/file_sys/vfs_real.h"
 #include "core/gdbstub/gdbstub.h"
@@ -27,17 +33,17 @@
 #include "core/hle/kernel/thread.h"
 #include "core/hle/service/am/applets/applets.h"
 #include "core/hle/service/apm/controller.h"
+#include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/glue/manager.h"
 #include "core/hle/service/service.h"
 #include "core/hle/service/sm/sm.h"
 #include "core/loader/loader.h"
+#include "core/memory/cheat_engine.h"
 #include "core/perf_stats.h"
 #include "core/reporter.h"
 #include "core/settings.h"
 #include "core/telemetry_session.h"
 #include "core/tools/freezer.h"
-#include "file_sys/cheat_engine.h"
-#include "file_sys/patch_manager.h"
 #include "video_core/debug_utils/debug_utils.h"
 #include "video_core/renderer_base.h"
 #include "video_core/video_core.h"
@@ -157,13 +163,10 @@ struct System::Impl {
         gpu_core = VideoCore::CreateGPU(system);
 
         is_powered_on = true;
+        exit_lock = false;
 
         LOG_DEBUG(Core, "Initialized OK");
 
-        // Reset counters and set time origin to current frame
-        GetAndResetPerfStats();
-        perf_stats.BeginSystemFrame();
-
         return ResultStatus::Success;
     }
 
@@ -202,10 +205,34 @@ struct System::Impl {
         gpu_core->Start();
         cpu_core_manager.StartThreads();
 
+        // Initialize cheat engine
+        if (cheat_engine) {
+            cheat_engine->Initialize();
+        }
+
         // All threads are started, begin main process execution, now that we're in the clear.
         main_process->Run(load_parameters->main_thread_priority,
                           load_parameters->main_thread_stack_size);
 
+        if (Settings::values.gamecard_inserted) {
+            if (Settings::values.gamecard_current_game) {
+                fs_controller.SetGameCard(GetGameFileFromPath(virtual_filesystem, filepath));
+            } else if (!Settings::values.gamecard_path.empty()) {
+                fs_controller.SetGameCard(
+                    GetGameFileFromPath(virtual_filesystem, Settings::values.gamecard_path));
+            }
+        }
+
+        u64 title_id{0};
+        if (app_loader->ReadProgramId(title_id) != Loader::ResultStatus::Success) {
+            LOG_ERROR(Core, "Failed to find title id for ROM (Error {})",
+                      static_cast<u32>(load_result));
+        }
+        perf_stats = std::make_unique<PerfStats>(title_id);
+        // Reset counters and set time origin to current frame
+        GetAndResetPerfStats();
+        perf_stats->BeginSystemFrame();
+
         status = ResultStatus::Success;
         return status;
     }
@@ -219,8 +246,11 @@ struct System::Impl {
                                     perf_results.game_fps);
         telemetry_session->AddField(Telemetry::FieldType::Performance, "Shutdown_Frametime",
                                     perf_results.frametime * 1000.0);
+        telemetry_session->AddField(Telemetry::FieldType::Performance, "Mean_Frametime_MS",
+                                    perf_stats->GetMeanFrametime());
 
         is_powered_on = false;
+        exit_lock = false;
 
         // Shutdown emulation session
         renderer.reset();
@@ -229,6 +259,7 @@ struct System::Impl {
         service_manager.reset();
         cheat_engine.reset();
         telemetry_session.reset();
+        perf_stats.reset();
         gpu_core.reset();
 
         // Close all CPU/threading state
@@ -286,7 +317,7 @@ struct System::Impl {
     }
 
     PerfStatsResults GetAndResetPerfStats() {
-        return perf_stats.GetAndResetStats(core_timing.GetGlobalTimeUs());
+        return perf_stats->GetAndResetStats(core_timing.GetGlobalTimeUs());
     }
 
     Timing::CoreTiming core_timing;
@@ -295,6 +326,7 @@ struct System::Impl {
     FileSys::VirtualFilesystem virtual_filesystem;
     /// ContentProviderUnion instance
     std::unique_ptr<FileSys::ContentProviderUnion> content_provider;
+    Service::FileSystem::FileSystemController fs_controller;
     /// AppLoader used to load the current executing application
     std::unique_ptr<Loader::AppLoader> app_loader;
     std::unique_ptr<VideoCore::RendererBase> renderer;
@@ -303,9 +335,11 @@ struct System::Impl {
     std::unique_ptr<Core::Hardware::InterruptManager> interrupt_manager;
     CpuCoreManager cpu_core_manager;
     bool is_powered_on = false;
+    bool exit_lock = false;
 
-    std::unique_ptr<FileSys::CheatEngine> cheat_engine;
+    std::unique_ptr<Memory::CheatEngine> cheat_engine;
     std::unique_ptr<Tools::Freezer> memory_freezer;
+    std::array<u8, 0x20> build_id{};
 
     /// Frontend applets
     Service::AM::Applets::AppletManager applet_manager;
@@ -327,7 +361,7 @@ struct System::Impl {
     ResultStatus status = ResultStatus::Success;
     std::string status_details = "";
 
-    Core::PerfStats perf_stats;
+    std::unique_ptr<Core::PerfStats> perf_stats;
     Core::FrameLimiter frame_limiter;
 };
 
@@ -480,11 +514,11 @@ const Timing::CoreTiming& System::CoreTiming() const {
 }
 
 Core::PerfStats& System::GetPerfStats() {
-    return impl->perf_stats;
+    return *impl->perf_stats;
 }
 
 const Core::PerfStats& System::GetPerfStats() const {
-    return impl->perf_stats;
+    return *impl->perf_stats;
 }
 
 Core::FrameLimiter& System::FrameLimiter() {
@@ -519,13 +553,6 @@ Tegra::DebugContext* System::GetGPUDebugContext() const {
     return impl->debug_context.get();
 }
 
-void System::RegisterCheatList(const std::vector<FileSys::CheatList>& list,
-                               const std::string& build_id, VAddr code_region_start,
-                               VAddr code_region_end) {
-    impl->cheat_engine = std::make_unique<FileSys::CheatEngine>(*this, list, build_id,
-                                                                code_region_start, code_region_end);
-}
-
 void System::SetFilesystem(std::shared_ptr<FileSys::VfsFilesystem> vfs) {
     impl->virtual_filesystem = std::move(vfs);
 }
@@ -534,6 +561,13 @@ std::shared_ptr<FileSys::VfsFilesystem> System::GetFilesystem() const {
     return impl->virtual_filesystem;
 }
 
+void System::RegisterCheatList(const std::vector<Memory::CheatEntry>& list,
+                               const std::array<u8, 32>& build_id, VAddr main_region_begin,
+                               u64 main_region_size) {
+    impl->cheat_engine = std::make_unique<Memory::CheatEngine>(*this, list, build_id);
+    impl->cheat_engine->SetMainMemoryParameters(main_region_begin, main_region_size);
+}
+
 void System::SetAppletFrontendSet(Service::AM::Applets::AppletFrontendSet&& set) {
     impl->applet_manager.SetAppletFrontendSet(std::move(set));
 }
@@ -562,6 +596,14 @@ const FileSys::ContentProvider& System::GetContentProvider() const {
     return *impl->content_provider;
 }
 
+Service::FileSystem::FileSystemController& System::GetFileSystemController() {
+    return impl->fs_controller;
+}
+
+const Service::FileSystem::FileSystemController& System::GetFileSystemController() const {
+    return impl->fs_controller;
+}
+
 void System::RegisterContentProvider(FileSys::ContentProviderUnionSlot slot,
                                      FileSys::ContentProvider* provider) {
     impl->content_provider->SetSlot(slot, provider);
@@ -591,6 +633,22 @@ const Service::APM::Controller& System::GetAPMController() const {
     return impl->apm_controller;
 }
 
+void System::SetExitLock(bool locked) {
+    impl->exit_lock = locked;
+}
+
+bool System::GetExitLock() const {
+    return impl->exit_lock;
+}
+
+void System::SetCurrentProcessBuildID(std::array<u8, 32> id) {
+    impl->build_id = id;
+}
+
+const std::array<u8, 32>& System::GetCurrentProcessBuildID() const {
+    return impl->build_id;
+}
+
 System::ResultStatus System::Init(Frontend::EmuWindow& emu_window) {
     return impl->Init(*this, emu_window);
 }

src/core/core.h

@@ -18,7 +18,6 @@ class EmuWindow;
 } // namespace Core::Frontend
 
 namespace FileSys {
-class CheatList;
 class ContentProvider;
 class ContentProviderUnion;
 enum class ContentProviderUnionSlot;
@@ -36,6 +35,10 @@ class AppLoader;
 enum class ResultStatus : u16;
 } // namespace Loader
 
+namespace Memory {
+struct CheatEntry;
+} // namespace Memory
+
 namespace Service {
 
 namespace AM::Applets {
@@ -47,6 +50,10 @@ namespace APM {
 class Controller;
 }
 
+namespace FileSystem {
+class FileSystemController;
+} // namespace FileSystem
+
 namespace Glue {
 class ARPManager;
 }
@@ -282,8 +289,9 @@ public:
 
     std::shared_ptr<FileSys::VfsFilesystem> GetFilesystem() const;
 
-    void RegisterCheatList(const std::vector<FileSys::CheatList>& list, const std::string& build_id,
-                           VAddr code_region_start, VAddr code_region_end);
+    void RegisterCheatList(const std::vector<Memory::CheatEntry>& list,
+                           const std::array<u8, 0x20>& build_id, VAddr main_region_begin,
+                           u64 main_region_size);
 
     void SetAppletFrontendSet(Service::AM::Applets::AppletFrontendSet&& set);
 
@@ -299,6 +307,10 @@ public:
 
     const FileSys::ContentProvider& GetContentProvider() const;
 
+    Service::FileSystem::FileSystemController& GetFileSystemController();
+
+    const Service::FileSystem::FileSystemController& GetFileSystemController() const;
+
     void RegisterContentProvider(FileSys::ContentProviderUnionSlot slot,
                                  FileSys::ContentProvider* provider);
 
@@ -314,6 +326,14 @@ public:
 
     const Service::APM::Controller& GetAPMController() const;
 
+    void SetExitLock(bool locked);
+
+    bool GetExitLock() const;
+
+    void SetCurrentProcessBuildID(std::array<u8, 0x20> id);
+
+    const std::array<u8, 0x20>& GetCurrentProcessBuildID() const;
+
 private:
     System();
 

src/core/crypto/key_manager.cpp

@@ -423,7 +423,7 @@ static std::optional<u64> FindTicketOffset(const std::array<u8, size>& data) {
 std::optional<std::pair<Key128, Key128>> ParseTicket(const Ticket& ticket,
                                                      const RSAKeyPair<2048>& key) {
     const auto issuer = ticket.GetData().issuer;
-    if (issuer == std::array<u8, 0x40>{})
+    if (IsAllZeroArray(issuer))
         return {};
     if (issuer[0] != 'R' || issuer[1] != 'o' || issuer[2] != 'o' || issuer[3] != 't') {
         LOG_INFO(Crypto, "Attempting to parse ticket with non-standard certificate authority.");

src/core/crypto/partition_data_manager.cpp

@@ -480,6 +480,10 @@ void PartitionDataManager::DecryptProdInfo(std::array<u8, 0x20> bis_key) {
     prodinfo_decrypted = std::make_shared<XTSEncryptionLayer>(prodinfo, bis_key);
 }
 
+FileSys::VirtualFile PartitionDataManager::GetDecryptedProdInfo() const {
+    return prodinfo_decrypted;
+}
+
 std::array<u8, 576> PartitionDataManager::GetETicketExtendedKek() const {
     std::array<u8, 0x240> out{};
     if (prodinfo_decrypted != nullptr)

src/core/crypto/partition_data_manager.h

@@ -84,6 +84,7 @@ public:
     bool HasProdInfo() const;
     FileSys::VirtualFile GetProdInfoRaw() const;
     void DecryptProdInfo(std::array<u8, 0x20> bis_key);
+    FileSys::VirtualFile GetDecryptedProdInfo() const;
     std::array<u8, 0x240> GetETicketExtendedKek() const;
 
 private:

src/core/file_sys/bis_factory.cpp

@@ -3,8 +3,12 @@
 // Refer to the license.txt file included.
 
 #include <fmt/format.h>
+#include "common/file_util.h"
+#include "core/core.h"
 #include "core/file_sys/bis_factory.h"
+#include "core/file_sys/mode.h"
 #include "core/file_sys/registered_cache.h"
+#include "core/settings.h"
 
 namespace FileSys {
 
@@ -14,10 +18,22 @@ BISFactory::BISFactory(VirtualDir nand_root_, VirtualDir load_root_, VirtualDir
       sysnand_cache(std::make_unique<RegisteredCache>(
           GetOrCreateDirectoryRelative(nand_root, "/system/Contents/registered"))),
       usrnand_cache(std::make_unique<RegisteredCache>(
-          GetOrCreateDirectoryRelative(nand_root, "/user/Contents/registered"))) {}
+          GetOrCreateDirectoryRelative(nand_root, "/user/Contents/registered"))),
+      sysnand_placeholder(std::make_unique<PlaceholderCache>(
+          GetOrCreateDirectoryRelative(nand_root, "/system/Contents/placehld"))),
+      usrnand_placeholder(std::make_unique<PlaceholderCache>(
+          GetOrCreateDirectoryRelative(nand_root, "/user/Contents/placehld"))) {}
 
 BISFactory::~BISFactory() = default;
 
+VirtualDir BISFactory::GetSystemNANDContentDirectory() const {
+    return GetOrCreateDirectoryRelative(nand_root, "/system/Contents");
+}
+
+VirtualDir BISFactory::GetUserNANDContentDirectory() const {
+    return GetOrCreateDirectoryRelative(nand_root, "/user/Contents");
+}
+
 RegisteredCache* BISFactory::GetSystemNANDContents() const {
     return sysnand_cache.get();
 }
@@ -26,9 +42,17 @@ RegisteredCache* BISFactory::GetUserNANDContents() const {
     return usrnand_cache.get();
 }
 
+PlaceholderCache* BISFactory::GetSystemNANDPlaceholder() const {
+    return sysnand_placeholder.get();
+}
+
+PlaceholderCache* BISFactory::GetUserNANDPlaceholder() const {
+    return usrnand_placeholder.get();
+}
+
 VirtualDir BISFactory::GetModificationLoadRoot(u64 title_id) const {
     // LayeredFS doesn't work on updates and title id-less homebrew
-    if (title_id == 0 || (title_id & 0x800) > 0)
+    if (title_id == 0 || (title_id & 0xFFF) == 0x800)
         return nullptr;
     return GetOrCreateDirectoryRelative(load_root, fmt::format("/{:016X}", title_id));
 }
@@ -39,4 +63,82 @@ VirtualDir BISFactory::GetModificationDumpRoot(u64 title_id) const {
     return GetOrCreateDirectoryRelative(dump_root, fmt::format("/{:016X}", title_id));
 }
 
+VirtualDir BISFactory::OpenPartition(BisPartitionId id) const {
+    switch (id) {
+    case BisPartitionId::CalibrationFile:
+        return GetOrCreateDirectoryRelative(nand_root, "/prodinfof");
+    case BisPartitionId::SafeMode:
+        return GetOrCreateDirectoryRelative(nand_root, "/safe");
+    case BisPartitionId::System:
+        return GetOrCreateDirectoryRelative(nand_root, "/system");
+    case BisPartitionId::User:
+        return GetOrCreateDirectoryRelative(nand_root, "/user");
+    default:
+        return nullptr;
+    }
+}
+
+VirtualFile BISFactory::OpenPartitionStorage(BisPartitionId id) const {
+    Core::Crypto::KeyManager keys;
+    Core::Crypto::PartitionDataManager pdm{
+        Core::System::GetInstance().GetFilesystem()->OpenDirectory(
+            FileUtil::GetUserPath(FileUtil::UserPath::SysDataDir), Mode::Read)};
+    keys.PopulateFromPartitionData(pdm);
+
+    switch (id) {
+    case BisPartitionId::CalibrationBinary:
+        return pdm.GetDecryptedProdInfo();
+    case BisPartitionId::BootConfigAndPackage2Part1:
+    case BisPartitionId::BootConfigAndPackage2Part2:
+    case BisPartitionId::BootConfigAndPackage2Part3:
+    case BisPartitionId::BootConfigAndPackage2Part4:
+    case BisPartitionId::BootConfigAndPackage2Part5:
+    case BisPartitionId::BootConfigAndPackage2Part6: {
+        const auto new_id = static_cast<u8>(id) -
+                            static_cast<u8>(BisPartitionId::BootConfigAndPackage2Part1) +
+                            static_cast<u8>(Core::Crypto::Package2Type::NormalMain);
+        return pdm.GetPackage2Raw(static_cast<Core::Crypto::Package2Type>(new_id));
+    }
+    default:
+        return nullptr;
+    }
+}
+
+VirtualDir BISFactory::GetImageDirectory() const {
+    return GetOrCreateDirectoryRelative(nand_root, "/user/Album");
+}
+
+u64 BISFactory::GetSystemNANDFreeSpace() const {
+    const auto sys_dir = GetOrCreateDirectoryRelative(nand_root, "/system");
+    if (sys_dir == nullptr)
+        return 0;
+
+    return GetSystemNANDTotalSpace() - sys_dir->GetSize();
+}
+
+u64 BISFactory::GetSystemNANDTotalSpace() const {
+    return static_cast<u64>(Settings::values.nand_system_size);
+}
+
+u64 BISFactory::GetUserNANDFreeSpace() const {
+    const auto usr_dir = GetOrCreateDirectoryRelative(nand_root, "/user");
+    if (usr_dir == nullptr)
+        return 0;
+
+    return GetUserNANDTotalSpace() - usr_dir->GetSize();
+}
+
+u64 BISFactory::GetUserNANDTotalSpace() const {
+    return static_cast<u64>(Settings::values.nand_user_size);
+}
+
+u64 BISFactory::GetFullNANDTotalSpace() const {
+    return static_cast<u64>(Settings::values.nand_total_size);
+}
+
+VirtualDir BISFactory::GetBCATDirectory(u64 title_id) const {
+    return GetOrCreateDirectoryRelative(nand_root,
+                                        fmt::format("/system/save/bcat/{:016X}", title_id));
+}
+
 } // namespace FileSys

src/core/file_sys/bis_factory.h

@@ -10,7 +10,25 @@
 
 namespace FileSys {
 
+enum class BisPartitionId : u32 {
+    UserDataRoot = 20,
+    CalibrationBinary = 27,
+    CalibrationFile = 28,
+    BootConfigAndPackage2Part1 = 21,
+    BootConfigAndPackage2Part2 = 22,
+    BootConfigAndPackage2Part3 = 23,
+    BootConfigAndPackage2Part4 = 24,
+    BootConfigAndPackage2Part5 = 25,
+    BootConfigAndPackage2Part6 = 26,
+    SafeMode = 29,
+    System = 31,
+    SystemProperEncryption = 32,
+    SystemProperPartition = 33,
+    User = 30,
+};
+
 class RegisteredCache;
+class PlaceholderCache;
 
 /// File system interface to the Built-In Storage
 /// This is currently missing accessors to BIS partitions, but seemed like a good place for the NAND
@@ -20,12 +38,31 @@ public:
     explicit BISFactory(VirtualDir nand_root, VirtualDir load_root, VirtualDir dump_root);
     ~BISFactory();
 
+    VirtualDir GetSystemNANDContentDirectory() const;
+    VirtualDir GetUserNANDContentDirectory() const;
+
     RegisteredCache* GetSystemNANDContents() const;
     RegisteredCache* GetUserNANDContents() const;
 
+    PlaceholderCache* GetSystemNANDPlaceholder() const;
+    PlaceholderCache* GetUserNANDPlaceholder() const;
+
     VirtualDir GetModificationLoadRoot(u64 title_id) const;
     VirtualDir GetModificationDumpRoot(u64 title_id) const;
 
+    VirtualDir OpenPartition(BisPartitionId id) const;
+    VirtualFile OpenPartitionStorage(BisPartitionId id) const;
+
+    VirtualDir GetImageDirectory() const;
+
+    u64 GetSystemNANDFreeSpace() const;
+    u64 GetSystemNANDTotalSpace() const;
+    u64 GetUserNANDFreeSpace() const;
+    u64 GetUserNANDTotalSpace() const;
+    u64 GetFullNANDTotalSpace() const;
+
+    VirtualDir GetBCATDirectory(u64 title_id) const;
+
 private:
     VirtualDir nand_root;
     VirtualDir load_root;
@@ -33,6 +70,9 @@ private:
 
     std::unique_ptr<RegisteredCache> sysnand_cache;
     std::unique_ptr<RegisteredCache> usrnand_cache;
+
+    std::unique_ptr<PlaceholderCache> sysnand_placeholder;
+    std::unique_ptr<PlaceholderCache> usrnand_placeholder;
 };
 
 } // namespace FileSys

src/core/file_sys/card_image.cpp

@@ -12,12 +12,16 @@
 #include "core/file_sys/content_archive.h"
 #include "core/file_sys/nca_metadata.h"
 #include "core/file_sys/partition_filesystem.h"
+#include "core/file_sys/romfs.h"
 #include "core/file_sys/submission_package.h"
+#include "core/file_sys/vfs_concat.h"
 #include "core/file_sys/vfs_offset.h"
+#include "core/file_sys/vfs_vector.h"
 #include "core/loader/loader.h"
 
 namespace FileSys {
 
+constexpr u64 GAMECARD_CERTIFICATE_OFFSET = 0x7000;
 constexpr std::array partition_names{
     "update",
     "normal",
@@ -175,6 +179,26 @@ VirtualDir XCI::GetParentDirectory() const {
     return file->GetContainingDirectory();
 }
 
+VirtualDir XCI::ConcatenatedPseudoDirectory() {
+    const auto out = std::make_shared<VectorVfsDirectory>();
+    for (const auto& part_id : {XCIPartition::Normal, XCIPartition::Logo, XCIPartition::Secure}) {
+        const auto& part = GetPartition(part_id);
+        if (part == nullptr)
+            continue;
+
+        for (const auto& file : part->GetFiles())
+            out->AddFile(file);
+    }
+
+    return out;
+}
+
+std::array<u8, 0x200> XCI::GetCertificate() const {
+    std::array<u8, 0x200> out;
+    file->Read(out.data(), out.size(), GAMECARD_CERTIFICATE_OFFSET);
+    return out;
+}
+
 Loader::ResultStatus XCI::AddNCAFromPartition(XCIPartition part) {
     const auto partition_index = static_cast<std::size_t>(part);
     const auto& partition = partitions[partition_index];

src/core/file_sys/card_image.h

@@ -91,6 +91,8 @@ public:
     VirtualDir GetLogoPartition() const;
 
     u64 GetProgramTitleID() const;
+    u32 GetSystemUpdateVersion();
+    u64 GetSystemUpdateTitleID() const;
 
     bool HasProgramNCA() const;
     VirtualFile GetProgramNCAFile() const;
@@ -106,6 +108,11 @@ public:
 
     VirtualDir GetParentDirectory() const override;
 
+    // Creates a directory that contains all the NCAs in the gamecard
+    VirtualDir ConcatenatedPseudoDirectory();
+
+    std::array<u8, 0x200> GetCertificate() const;
+
 private:
     Loader::ResultStatus AddNCAFromPartition(XCIPartition part);
 
@@ -120,6 +127,8 @@ private:
     std::shared_ptr<NCA> program;
     std::vector<std::shared_ptr<NCA>> ncas;
 
+    u64 update_normal_partition_end;
+
     Core::Crypto::KeyManager keys;
 };
 } // namespace FileSys

src/core/file_sys/cheat_engine.cpp

@@ -1,492 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <locale>
-#include "common/hex_util.h"
-#include "common/microprofile.h"
-#include "common/swap.h"
-#include "core/core.h"
-#include "core/core_timing.h"
-#include "core/core_timing_util.h"
-#include "core/file_sys/cheat_engine.h"
-#include "core/hle/kernel/process.h"
-#include "core/hle/service/hid/controllers/npad.h"
-#include "core/hle/service/hid/hid.h"
-#include "core/hle/service/sm/sm.h"
-
-namespace FileSys {
-
-constexpr s64 CHEAT_ENGINE_TICKS = static_cast<s64>(Core::Timing::BASE_CLOCK_RATE / 60);
-constexpr u32 KEYPAD_BITMASK = 0x3FFFFFF;
-
-u64 Cheat::Address() const {
-    u64 out;
-    std::memcpy(&out, raw.data(), sizeof(u64));
-    return Common::swap64(out) & 0xFFFFFFFFFF;
-}
-
-u64 Cheat::ValueWidth(u64 offset) const {
-    return Value(offset, width);
-}
-
-u64 Cheat::Value(u64 offset, u64 width) const {
-    u64 out;
-    std::memcpy(&out, raw.data() + offset, sizeof(u64));
-    out = Common::swap64(out);
-    if (width == 8)
-        return out;
-    return out & ((1ull << (width * CHAR_BIT)) - 1);
-}
-
-u32 Cheat::KeypadValue() const {
-    u32 out;
-    std::memcpy(&out, raw.data(), sizeof(u32));
-    return Common::swap32(out) & 0x0FFFFFFF;
-}
-
-void CheatList::SetMemoryParameters(VAddr main_begin, VAddr heap_begin, VAddr main_end,
-                                    VAddr heap_end, MemoryWriter writer, MemoryReader reader) {
-    this->main_region_begin = main_begin;
-    this->main_region_end = main_end;
-    this->heap_region_begin = heap_begin;
-    this->heap_region_end = heap_end;
-    this->writer = writer;
-    this->reader = reader;
-}
-
-MICROPROFILE_DEFINE(Cheat_Engine, "Add-Ons", "Cheat Engine", MP_RGB(70, 200, 70));
-
-void CheatList::Execute() {
-    MICROPROFILE_SCOPE(Cheat_Engine);
-
-    std::fill(scratch.begin(), scratch.end(), 0);
-    in_standard = false;
-    for (std::size_t i = 0; i < master_list.size(); ++i) {
-        LOG_DEBUG(Common_Filesystem, "Executing block #{:08X} ({})", i, master_list[i].first);
-        current_block = i;
-        ExecuteBlock(master_list[i].second);
-    }
-
-    in_standard = true;
-    for (std::size_t i = 0; i < standard_list.size(); ++i) {
-        LOG_DEBUG(Common_Filesystem, "Executing block #{:08X} ({})", i, standard_list[i].first);
-        current_block = i;
-        ExecuteBlock(standard_list[i].second);
-    }
-}
-
-CheatList::CheatList(const Core::System& system_, ProgramSegment master, ProgramSegment standard)
-    : master_list{std::move(master)}, standard_list{std::move(standard)}, system{&system_} {}
-
-bool CheatList::EvaluateConditional(const Cheat& cheat) const {
-    using ComparisonFunction = bool (*)(u64, u64);
-    constexpr std::array<ComparisonFunction, 6> comparison_functions{
-        [](u64 a, u64 b) { return a > b; },  [](u64 a, u64 b) { return a >= b; },
-        [](u64 a, u64 b) { return a < b; },  [](u64 a, u64 b) { return a <= b; },
-        [](u64 a, u64 b) { return a == b; }, [](u64 a, u64 b) { return a != b; },
-    };
-
-    if (cheat.type == CodeType::ConditionalInput) {
-        const auto applet_resource =
-            system->ServiceManager().GetService<Service::HID::Hid>("hid")->GetAppletResource();
-        if (applet_resource == nullptr) {
-            LOG_WARNING(
-                Common_Filesystem,
-                "Attempted to evaluate input conditional, but applet resource is not initialized!");
-            return false;
-        }
-
-        const auto press_state =
-            applet_resource
-                ->GetController<Service::HID::Controller_NPad>(Service::HID::HidController::NPad)
-                .GetAndResetPressState();
-        return ((press_state & cheat.KeypadValue()) & KEYPAD_BITMASK) != 0;
-    }
-
-    ASSERT(cheat.type == CodeType::Conditional);
-
-    const auto offset =
-        cheat.memory_type == MemoryType::MainNSO ? main_region_begin : heap_region_begin;
-    ASSERT(static_cast<u8>(cheat.comparison_op.Value()) < 6);
-    auto* function = comparison_functions[static_cast<u8>(cheat.comparison_op.Value())];
-    const auto addr = cheat.Address() + offset;
-
-    return function(reader(cheat.width, SanitizeAddress(addr)), cheat.ValueWidth(8));
-}
-
-void CheatList::ProcessBlockPairs(const Block& block) {
-    block_pairs.clear();
-
-    u64 scope = 0;
-    std::map<u64, u64> pairs;
-
-    for (std::size_t i = 0; i < block.size(); ++i) {
-        const auto& cheat = block[i];
-
-        switch (cheat.type) {
-        case CodeType::Conditional:
-        case CodeType::ConditionalInput:
-            pairs.insert_or_assign(scope, i);
-            ++scope;
-            break;
-        case CodeType::EndConditional: {
-            --scope;
-            const auto idx = pairs.at(scope);
-            block_pairs.insert_or_assign(idx, i);
-            break;
-        }
-        case CodeType::Loop: {
-            if (cheat.end_of_loop) {
-                --scope;
-                const auto idx = pairs.at(scope);
-                block_pairs.insert_or_assign(idx, i);
-            } else {
-                pairs.insert_or_assign(scope, i);
-                ++scope;
-            }
-            break;
-        }
-        }
-    }
-}
-
-void CheatList::WriteImmediate(const Cheat& cheat) {
-    const auto offset =
-        cheat.memory_type == MemoryType::MainNSO ? main_region_begin : heap_region_begin;
-    const auto& register_3 = scratch.at(cheat.register_3);
-
-    const auto addr = cheat.Address() + offset + register_3;
-    LOG_DEBUG(Common_Filesystem, "writing value={:016X} to addr={:016X}", addr,
-              cheat.Value(8, cheat.width));
-    writer(cheat.width, SanitizeAddress(addr), cheat.ValueWidth(8));
-}
-
-void CheatList::BeginConditional(const Cheat& cheat) {
-    if (EvaluateConditional(cheat)) {
-        return;
-    }
-
-    const auto iter = block_pairs.find(current_index);
-    ASSERT(iter != block_pairs.end());
-    current_index = iter->second - 1;
-}
-
-void CheatList::EndConditional(const Cheat& cheat) {
-    LOG_DEBUG(Common_Filesystem, "Ending conditional block.");
-}
-
-void CheatList::Loop(const Cheat& cheat) {
-    if (cheat.end_of_loop.Value())
-        ASSERT(!cheat.end_of_loop.Value());
-
-    auto& register_3 = scratch.at(cheat.register_3);
-    const auto iter = block_pairs.find(current_index);
-    ASSERT(iter != block_pairs.end());
-    ASSERT(iter->first < iter->second);
-
-    const s32 initial_value = static_cast<s32>(cheat.Value(4, sizeof(s32)));
-    for (s32 i = initial_value; i >= 0; --i) {
-        register_3 = static_cast<u64>(i);
-        for (std::size_t c = iter->first + 1; c < iter->second; ++c) {
-            current_index = c;
-            ExecuteSingleCheat(
-                (in_standard ? standard_list : master_list)[current_block].second[c]);
-        }
-    }
-
-    current_index = iter->second;
-}
-
-void CheatList::LoadImmediate(const Cheat& cheat) {
-    auto& register_3 = scratch.at(cheat.register_3);
-
-    LOG_DEBUG(Common_Filesystem, "setting register={:01X} equal to value={:016X}", cheat.register_3,
-              cheat.Value(4, 8));
-    register_3 = cheat.Value(4, 8);
-}
-
-void CheatList::LoadIndexed(const Cheat& cheat) {
-    const auto offset =
-        cheat.memory_type == MemoryType::MainNSO ? main_region_begin : heap_region_begin;
-    auto& register_3 = scratch.at(cheat.register_3);
-
-    const auto addr = (cheat.load_from_register.Value() ? register_3 : offset) + cheat.Address();
-    LOG_DEBUG(Common_Filesystem, "writing indexed value to register={:01X}, addr={:016X}",
-              cheat.register_3, addr);
-    register_3 = reader(cheat.width, SanitizeAddress(addr));
-}
-
-void CheatList::StoreIndexed(const Cheat& cheat) {
-    const auto& register_3 = scratch.at(cheat.register_3);
-
-    const auto addr =
-        register_3 + (cheat.add_additional_register.Value() ? scratch.at(cheat.register_6) : 0);
-    LOG_DEBUG(Common_Filesystem, "writing value={:016X} to addr={:016X}",
-              cheat.Value(4, cheat.width), addr);
-    writer(cheat.width, SanitizeAddress(addr), cheat.ValueWidth(4));
-}
-
-void CheatList::RegisterArithmetic(const Cheat& cheat) {
-    using ArithmeticFunction = u64 (*)(u64, u64);
-    constexpr std::array<ArithmeticFunction, 5> arithmetic_functions{
-        [](u64 a, u64 b) { return a + b; },  [](u64 a, u64 b) { return a - b; },
-        [](u64 a, u64 b) { return a * b; },  [](u64 a, u64 b) { return a << b; },
-        [](u64 a, u64 b) { return a >> b; },
-    };
-
-    using ArithmeticOverflowCheck = bool (*)(u64, u64);
-    constexpr std::array<ArithmeticOverflowCheck, 5> arithmetic_overflow_checks{
-        [](u64 a, u64 b) { return a > (std::numeric_limits<u64>::max() - b); },       // a + b
-        [](u64 a, u64 b) { return a > (std::numeric_limits<u64>::max() + b); },       // a - b
-        [](u64 a, u64 b) { return a > (std::numeric_limits<u64>::max() / b); },       // a * b
-        [](u64 a, u64 b) { return b >= 64 || (a & ~((1ull << (64 - b)) - 1)) != 0; }, // a << b
-        [](u64 a, u64 b) { return b >= 64 || (a & ((1ull << b) - 1)) != 0; },         // a >> b
-    };
-
-    static_assert(sizeof(arithmetic_functions) == sizeof(arithmetic_overflow_checks),
-                  "Missing or have extra arithmetic overflow checks compared to functions!");
-
-    auto& register_3 = scratch.at(cheat.register_3);
-
-    ASSERT(static_cast<u8>(cheat.arithmetic_op.Value()) < 5);
-    auto* function = arithmetic_functions[static_cast<u8>(cheat.arithmetic_op.Value())];
-    auto* overflow_function =
-        arithmetic_overflow_checks[static_cast<u8>(cheat.arithmetic_op.Value())];
-    LOG_DEBUG(Common_Filesystem, "performing arithmetic with register={:01X}, value={:016X}",
-              cheat.register_3, cheat.ValueWidth(4));
-
-    if (overflow_function(register_3, cheat.ValueWidth(4))) {
-        LOG_WARNING(Common_Filesystem,
-                    "overflow will occur when performing arithmetic operation={:02X} with operands "
-                    "a={:016X}, b={:016X}!",
-                    static_cast<u8>(cheat.arithmetic_op.Value()), register_3, cheat.ValueWidth(4));
-    }
-
-    register_3 = function(register_3, cheat.ValueWidth(4));
-}
-
-void CheatList::BeginConditionalInput(const Cheat& cheat) {
-    if (EvaluateConditional(cheat))
-        return;
-
-    const auto iter = block_pairs.find(current_index);
-    ASSERT(iter != block_pairs.end());
-    current_index = iter->second - 1;
-}
-
-VAddr CheatList::SanitizeAddress(VAddr in) const {
-    if ((in < main_region_begin || in >= main_region_end) &&
-        (in < heap_region_begin || in >= heap_region_end)) {
-        LOG_ERROR(Common_Filesystem,
-                  "Cheat attempting to access memory at invalid address={:016X}, if this persists, "
-                  "the cheat may be incorrect. However, this may be normal early in execution if "
-                  "the game has not properly set up yet.",
-                  in);
-        return 0; ///< Invalid addresses will hard crash
-    }
-
-    return in;
-}
-
-void CheatList::ExecuteSingleCheat(const Cheat& cheat) {
-    using CheatOperationFunction = void (CheatList::*)(const Cheat&);
-    constexpr std::array<CheatOperationFunction, 9> cheat_operation_functions{
-        &CheatList::WriteImmediate,        &CheatList::BeginConditional,
-        &CheatList::EndConditional,        &CheatList::Loop,
-        &CheatList::LoadImmediate,         &CheatList::LoadIndexed,
-        &CheatList::StoreIndexed,          &CheatList::RegisterArithmetic,
-        &CheatList::BeginConditionalInput,
-    };
-
-    const auto index = static_cast<u8>(cheat.type.Value());
-    ASSERT(index < sizeof(cheat_operation_functions));
-    const auto op = cheat_operation_functions[index];
-    (this->*op)(cheat);
-}
-
-void CheatList::ExecuteBlock(const Block& block) {
-    encountered_loops.clear();
-
-    ProcessBlockPairs(block);
-    for (std::size_t i = 0; i < block.size(); ++i) {
-        current_index = i;
-        ExecuteSingleCheat(block[i]);
-        i = current_index;
-    }
-}
-
-CheatParser::~CheatParser() = default;
-
-CheatList CheatParser::MakeCheatList(const Core::System& system, CheatList::ProgramSegment master,
-                                     CheatList::ProgramSegment standard) const {
-    return {system, std::move(master), std::move(standard)};
-}
-
-TextCheatParser::~TextCheatParser() = default;
-
-CheatList TextCheatParser::Parse(const Core::System& system, const std::vector<u8>& data) const {
-    std::stringstream ss;
-    ss.write(reinterpret_cast<const char*>(data.data()), data.size());
-
-    std::vector<std::string> lines;
-    std::string stream_line;
-    while (std::getline(ss, stream_line)) {
-        // Remove a trailing \r
-        if (!stream_line.empty() && stream_line.back() == '\r')
-            stream_line.pop_back();
-        lines.push_back(std::move(stream_line));
-    }
-
-    CheatList::ProgramSegment master_list;
-    CheatList::ProgramSegment standard_list;
-
-    for (std::size_t i = 0; i < lines.size(); ++i) {
-        auto line = lines[i];
-
-        if (!line.empty() && (line[0] == '[' || line[0] == '{')) {
-            const auto master = line[0] == '{';
-            const auto begin = master ? line.find('{') : line.find('[');
-            const auto end = master ? line.rfind('}') : line.rfind(']');
-
-            ASSERT(begin != std::string::npos && end != std::string::npos);
-
-            const std::string patch_name{line.begin() + begin + 1, line.begin() + end};
-            CheatList::Block block{};
-
-            while (i < lines.size() - 1) {
-                line = lines[++i];
-                if (!line.empty() && (line[0] == '[' || line[0] == '{')) {
-                    --i;
-                    break;
-                }
-
-                if (line.size() < 8)
-                    continue;
-
-                Cheat out{};
-                out.raw = ParseSingleLineCheat(line);
-                block.push_back(out);
-            }
-
-            (master ? master_list : standard_list).emplace_back(patch_name, block);
-        }
-    }
-
-    return MakeCheatList(system, master_list, standard_list);
-}
-
-std::array<u8, 16> TextCheatParser::ParseSingleLineCheat(const std::string& line) const {
-    std::array<u8, 16> out{};
-
-    if (line.size() < 8)
-        return out;
-
-    const auto word1 = Common::HexStringToArray<sizeof(u32)>(std::string_view{line.data(), 8});
-    std::memcpy(out.data(), word1.data(), sizeof(u32));
-
-    if (line.size() < 17 || line[8] != ' ')
-        return out;
-
-    const auto word2 = Common::HexStringToArray<sizeof(u32)>(std::string_view{line.data() + 9, 8});
-    std::memcpy(out.data() + sizeof(u32), word2.data(), sizeof(u32));
-
-    if (line.size() < 26 || line[17] != ' ') {
-        // Perform shifting in case value is truncated early.
-        const auto type = static_cast<CodeType>((out[0] & 0xF0) >> 4);
-        if (type == CodeType::Loop || type == CodeType::LoadImmediate ||
-            type == CodeType::StoreIndexed || type == CodeType::RegisterArithmetic) {
-            std::memcpy(out.data() + 8, out.data() + 4, sizeof(u32));
-            std::memset(out.data() + 4, 0, sizeof(u32));
-        }
-
-        return out;
-    }
-
-    const auto word3 = Common::HexStringToArray<sizeof(u32)>(std::string_view{line.data() + 18, 8});
-    std::memcpy(out.data() + 2 * sizeof(u32), word3.data(), sizeof(u32));
-
-    if (line.size() < 35 || line[26] != ' ') {
-        // Perform shifting in case value is truncated early.
-        const auto type = static_cast<CodeType>((out[0] & 0xF0) >> 4);
-        if (type == CodeType::WriteImmediate || type == CodeType::Conditional) {
-            std::memcpy(out.data() + 12, out.data() + 8, sizeof(u32));
-            std::memset(out.data() + 8, 0, sizeof(u32));
-        }
-
-        return out;
-    }
-
-    const auto word4 = Common::HexStringToArray<sizeof(u32)>(std::string_view{line.data() + 27, 8});
-    std::memcpy(out.data() + 3 * sizeof(u32), word4.data(), sizeof(u32));
-
-    return out;
-}
-
-namespace {
-u64 MemoryReadImpl(u32 width, VAddr addr) {
-    switch (width) {
-    case 1:
-        return Memory::Read8(addr);
-    case 2:
-        return Memory::Read16(addr);
-    case 4:
-        return Memory::Read32(addr);
-    case 8:
-        return Memory::Read64(addr);
-    default:
-        UNREACHABLE();
-        return 0;
-    }
-}
-
-void MemoryWriteImpl(u32 width, VAddr addr, u64 value) {
-    switch (width) {
-    case 1:
-        Memory::Write8(addr, static_cast<u8>(value));
-        break;
-    case 2:
-        Memory::Write16(addr, static_cast<u16>(value));
-        break;
-    case 4:
-        Memory::Write32(addr, static_cast<u32>(value));
-        break;
-    case 8:
-        Memory::Write64(addr, value);
-        break;
-    default:
-        UNREACHABLE();
-    }
-}
-} // Anonymous namespace
-
-CheatEngine::CheatEngine(Core::System& system, std::vector<CheatList> cheats_,
-                         const std::string& build_id, VAddr code_region_start,
-                         VAddr code_region_end)
-    : cheats{std::move(cheats_)}, core_timing{system.CoreTiming()} {
-    event = core_timing.RegisterEvent(
-        "CheatEngine::FrameCallback::" + build_id,
-        [this](u64 userdata, s64 cycles_late) { FrameCallback(userdata, cycles_late); });
-    core_timing.ScheduleEvent(CHEAT_ENGINE_TICKS, event);
-
-    const auto& vm_manager = system.CurrentProcess()->VMManager();
-    for (auto& list : this->cheats) {
-        list.SetMemoryParameters(code_region_start, vm_manager.GetHeapRegionBaseAddress(),
-                                 code_region_end, vm_manager.GetHeapRegionEndAddress(),
-                                 &MemoryWriteImpl, &MemoryReadImpl);
-    }
-}
-
-CheatEngine::~CheatEngine() {
-    core_timing.UnscheduleEvent(event, 0);
-}
-
-void CheatEngine::FrameCallback(u64 userdata, s64 cycles_late) {
-    for (auto& list : cheats) {
-        list.Execute();
-    }
-
-    core_timing.ScheduleEvent(CHEAT_ENGINE_TICKS - cycles_late, event);
-}
-
-} // namespace FileSys

src/core/file_sys/cheat_engine.h

@@ -1,234 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <map>
-#include <set>
-#include <vector>
-#include "common/bit_field.h"
-#include "common/common_types.h"
-
-namespace Core {
-class System;
-}
-
-namespace Core::Timing {
-class CoreTiming;
-struct EventType;
-} // namespace Core::Timing
-
-namespace FileSys {
-
-enum class CodeType : u32 {
-    // 0TMR00AA AAAAAAAA YYYYYYYY YYYYYYYY
-    // Writes a T sized value Y to the address A added to the value of register R in memory domain M
-    WriteImmediate = 0,
-
-    // 1TMC00AA AAAAAAAA YYYYYYYY YYYYYYYY
-    // Compares the T sized value Y to the value at address A in memory domain M using the
-    // conditional function C. If success, continues execution. If failure, jumps to the matching
-    // EndConditional statement.
-    Conditional = 1,
-
-    // 20000000
-    // Terminates a Conditional or ConditionalInput block.
-    EndConditional = 2,
-
-    // 300R0000 VVVVVVVV
-    // Starts looping V times, storing the current count in register R.
-    // Loop block is terminated with a matching 310R0000.
-    Loop = 3,
-
-    // 400R0000 VVVVVVVV VVVVVVVV
-    // Sets the value of register R to the value V.
-    LoadImmediate = 4,
-
-    // 5TMRI0AA AAAAAAAA
-    // Sets the value of register R to the value of width T at address A in memory domain M, with
-    // the current value of R added to the address if I == 1.
-    LoadIndexed = 5,
-
-    // 6T0RIFG0 VVVVVVVV VVVVVVVV
-    // Writes the value V of width T to the memory address stored in register R. Adds the value of
-    // register G to the final calculation if F is nonzero. Increments the value of register R by T
-    // after operation if I is nonzero.
-    StoreIndexed = 6,
-
-    // 7T0RA000 VVVVVVVV
-    // Performs the arithmetic operation A on the value in register R and the value V of width T,
-    // storing the result in register R.
-    RegisterArithmetic = 7,
-
-    // 8KKKKKKK
-    // Checks to see if any of the buttons defined by the bitmask K are pressed. If any are,
-    // execution continues. If none are, execution skips to the next EndConditional command.
-    ConditionalInput = 8,
-};
-
-enum class MemoryType : u32 {
-    // Addressed relative to start of main NSO
-    MainNSO = 0,
-
-    // Addressed relative to start of heap
-    Heap = 1,
-};
-
-enum class ArithmeticOp : u32 {
-    Add = 0,
-    Sub = 1,
-    Mult = 2,
-    LShift = 3,
-    RShift = 4,
-};
-
-enum class ComparisonOp : u32 {
-    GreaterThan = 1,
-    GreaterThanEqual = 2,
-    LessThan = 3,
-    LessThanEqual = 4,
-    Equal = 5,
-    Inequal = 6,
-};
-
-union Cheat {
-    std::array<u8, 16> raw;
-
-    BitField<4, 4, CodeType> type;
-    BitField<0, 4, u32> width; // Can be 1, 2, 4, or 8. Measured in bytes.
-    BitField<0, 4, u32> end_of_loop;
-    BitField<12, 4, MemoryType> memory_type;
-    BitField<8, 4, u32> register_3;
-    BitField<8, 4, ComparisonOp> comparison_op;
-    BitField<20, 4, u32> load_from_register;
-    BitField<20, 4, u32> increment_register;
-    BitField<20, 4, ArithmeticOp> arithmetic_op;
-    BitField<16, 4, u32> add_additional_register;
-    BitField<28, 4, u32> register_6;
-
-    u64 Address() const;
-    u64 ValueWidth(u64 offset) const;
-    u64 Value(u64 offset, u64 width) const;
-    u32 KeypadValue() const;
-};
-
-class CheatParser;
-
-// Represents a full collection of cheats for a game. The Execute function should be called every
-// interval that all cheats should be executed. Clients should not directly instantiate this class
-// (hence private constructor), they should instead receive an instance from CheatParser, which
-// guarantees the list is always in an acceptable state.
-class CheatList {
-public:
-    friend class CheatParser;
-
-    using Block = std::vector<Cheat>;
-    using ProgramSegment = std::vector<std::pair<std::string, Block>>;
-
-    // (width in bytes, address, value)
-    using MemoryWriter = void (*)(u32, VAddr, u64);
-    // (width in bytes, address) -> value
-    using MemoryReader = u64 (*)(u32, VAddr);
-
-    void SetMemoryParameters(VAddr main_begin, VAddr heap_begin, VAddr main_end, VAddr heap_end,
-                             MemoryWriter writer, MemoryReader reader);
-
-    void Execute();
-
-private:
-    CheatList(const Core::System& system_, ProgramSegment master, ProgramSegment standard);
-
-    void ProcessBlockPairs(const Block& block);
-    void ExecuteSingleCheat(const Cheat& cheat);
-
-    void ExecuteBlock(const Block& block);
-
-    bool EvaluateConditional(const Cheat& cheat) const;
-
-    // Individual cheat operations
-    void WriteImmediate(const Cheat& cheat);
-    void BeginConditional(const Cheat& cheat);
-    void EndConditional(const Cheat& cheat);
-    void Loop(const Cheat& cheat);
-    void LoadImmediate(const Cheat& cheat);
-    void LoadIndexed(const Cheat& cheat);
-    void StoreIndexed(const Cheat& cheat);
-    void RegisterArithmetic(const Cheat& cheat);
-    void BeginConditionalInput(const Cheat& cheat);
-
-    VAddr SanitizeAddress(VAddr in) const;
-
-    // Master Codes are defined as codes that cannot be disabled and are run prior to all
-    // others.
-    ProgramSegment master_list;
-    // All other codes
-    ProgramSegment standard_list;
-
-    bool in_standard = false;
-
-    // 16 (0x0-0xF) scratch registers that can be used by cheats
-    std::array<u64, 16> scratch{};
-
-    MemoryWriter writer = nullptr;
-    MemoryReader reader = nullptr;
-
-    u64 main_region_begin{};
-    u64 heap_region_begin{};
-    u64 main_region_end{};
-    u64 heap_region_end{};
-
-    u64 current_block{};
-    // The current index of the cheat within the current Block
-    u64 current_index{};
-
-    // The 'stack' of the program. When a conditional or loop statement is encountered, its index is
-    // pushed onto this queue. When a end block is encountered, the condition is checked.
-    std::map<u64, u64> block_pairs;
-
-    std::set<u64> encountered_loops;
-
-    const Core::System* system;
-};
-
-// Intermediary class that parses a text file or other disk format for storing cheats into a
-// CheatList object, that can be used for execution.
-class CheatParser {
-public:
-    virtual ~CheatParser();
-
-    virtual CheatList Parse(const Core::System& system, const std::vector<u8>& data) const = 0;
-
-protected:
-    CheatList MakeCheatList(const Core::System& system_, CheatList::ProgramSegment master,
-                            CheatList::ProgramSegment standard) const;
-};
-
-// CheatParser implementation that parses text files
-class TextCheatParser final : public CheatParser {
-public:
-    ~TextCheatParser() override;
-
-    CheatList Parse(const Core::System& system, const std::vector<u8>& data) const override;
-
-private:
-    std::array<u8, 16> ParseSingleLineCheat(const std::string& line) const;
-};
-
-// Class that encapsulates a CheatList and manages its interaction with memory and CoreTiming
-class CheatEngine final {
-public:
-    CheatEngine(Core::System& system_, std::vector<CheatList> cheats_, const std::string& build_id,
-                VAddr code_region_start, VAddr code_region_end);
-    ~CheatEngine();
-
-private:
-    void FrameCallback(u64 userdata, s64 cycles_late);
-
-    std::vector<CheatList> cheats;
-
-    Core::Timing::EventType* event;
-    Core::Timing::CoreTiming& core_timing;
-};
-
-} // namespace FileSys

src/core/file_sys/content_archive.cpp

@@ -528,6 +528,14 @@ u64 NCA::GetTitleId() const {
     return header.title_id;
 }
 
+std::array<u8, 16> NCA::GetRightsId() const {
+    return header.rights_id;
+}
+
+u32 NCA::GetSDKVersion() const {
+    return header.sdk_version;
+}
+
 bool NCA::IsUpdate() const {
     return is_update;
 }

src/core/file_sys/content_archive.h

@@ -112,6 +112,8 @@ public:
 
     NCAContentType GetType() const;
     u64 GetTitleId() const;
+    std::array<u8, 0x10> GetRightsId() const;
+    u32 GetSDKVersion() const;
     bool IsUpdate() const;
 
     VirtualFile GetRomFS() const;

src/core/file_sys/patch_manager.cpp

@@ -22,6 +22,7 @@
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/loader/loader.h"
 #include "core/loader/nso.h"
+#include "core/memory/cheat_engine.h"
 #include "core/settings.h"
 
 namespace FileSys {
@@ -63,7 +64,8 @@ VirtualDir PatchManager::PatchExeFS(VirtualDir exefs) const {
 
     if (Settings::values.dump_exefs) {
         LOG_INFO(Loader, "Dumping ExeFS for title_id={:016X}", title_id);
-        const auto dump_dir = Service::FileSystem::GetModificationDumpRoot(title_id);
+        const auto dump_dir =
+            Core::System::GetInstance().GetFileSystemController().GetModificationDumpRoot(title_id);
         if (dump_dir != nullptr) {
             const auto exefs_dir = GetOrCreateDirectoryRelative(dump_dir, "/exefs");
             VfsRawCopyD(exefs, exefs_dir);
@@ -88,7 +90,8 @@ VirtualDir PatchManager::PatchExeFS(VirtualDir exefs) const {
     }
 
     // LayeredExeFS
-    const auto load_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
+    const auto load_dir =
+        Core::System::GetInstance().GetFileSystemController().GetModificationLoadRoot(title_id);
     if (load_dir != nullptr && load_dir->GetSize() > 0) {
         auto patch_dirs = load_dir->GetSubdirectories();
         std::sort(
@@ -174,7 +177,8 @@ std::vector<u8> PatchManager::PatchNSO(const std::vector<u8>& nso, const std::st
     if (Settings::values.dump_nso) {
         LOG_INFO(Loader, "Dumping NSO for name={}, build_id={}, title_id={:016X}", name, build_id,
                  title_id);
-        const auto dump_dir = Service::FileSystem::GetModificationDumpRoot(title_id);
+        const auto dump_dir =
+            Core::System::GetInstance().GetFileSystemController().GetModificationDumpRoot(title_id);
         if (dump_dir != nullptr) {
             const auto nso_dir = GetOrCreateDirectoryRelative(dump_dir, "/nso");
             const auto file = nso_dir->CreateFile(fmt::format("{}-{}.nso", name, build_id));
@@ -186,7 +190,13 @@ std::vector<u8> PatchManager::PatchNSO(const std::vector<u8>& nso, const std::st
 
     LOG_INFO(Loader, "Patching NSO for name={}, build_id={}", name, build_id);
 
-    const auto load_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
+    const auto load_dir =
+        Core::System::GetInstance().GetFileSystemController().GetModificationLoadRoot(title_id);
+    if (load_dir == nullptr) {
+        LOG_ERROR(Loader, "Cannot load mods for invalid title_id={:016X}", title_id);
+        return nso;
+    }
+
     auto patch_dirs = load_dir->GetSubdirectories();
     std::sort(patch_dirs.begin(), patch_dirs.end(),
               [](const VirtualDir& l, const VirtualDir& r) { return l->GetName() < r->GetName(); });
@@ -224,7 +234,13 @@ bool PatchManager::HasNSOPatch(const std::array<u8, 32>& build_id_) const {
 
     LOG_INFO(Loader, "Querying NSO patch existence for build_id={}", build_id);
 
-    const auto load_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
+    const auto load_dir =
+        Core::System::GetInstance().GetFileSystemController().GetModificationLoadRoot(title_id);
+    if (load_dir == nullptr) {
+        LOG_ERROR(Loader, "Cannot load mods for invalid title_id={:016X}", title_id);
+        return false;
+    }
+
     auto patch_dirs = load_dir->GetSubdirectories();
     std::sort(patch_dirs.begin(), patch_dirs.end(),
               [](const VirtualDir& l, const VirtualDir& r) { return l->GetName() < r->GetName(); });
@@ -232,9 +248,10 @@ bool PatchManager::HasNSOPatch(const std::array<u8, 32>& build_id_) const {
     return !CollectPatches(patch_dirs, build_id).empty();
 }
 
-static std::optional<CheatList> ReadCheatFileFromFolder(const Core::System& system, u64 title_id,
-                                                        const std::array<u8, 0x20>& build_id_,
-                                                        const VirtualDir& base_path, bool upper) {
+namespace {
+std::optional<std::vector<Memory::CheatEntry>> ReadCheatFileFromFolder(
+    const Core::System& system, u64 title_id, const std::array<u8, 0x20>& build_id_,
+    const VirtualDir& base_path, bool upper) {
     const auto build_id_raw = Common::HexToString(build_id_, upper);
     const auto build_id = build_id_raw.substr(0, sizeof(u64) * 2);
     const auto file = base_path->GetFile(fmt::format("{}.txt", build_id));
@@ -252,31 +269,39 @@ static std::optional<CheatList> ReadCheatFileFromFolder(const Core::System& syst
         return std::nullopt;
     }
 
-    TextCheatParser parser;
-    return parser.Parse(system, data);
+    Memory::TextCheatParser parser;
+    return parser.Parse(
+        system, std::string_view(reinterpret_cast<const char* const>(data.data()), data.size()));
 }
 
-std::vector<CheatList> PatchManager::CreateCheatList(const Core::System& system,
-                                                     const std::array<u8, 32>& build_id_) const {
-    const auto load_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
+} // Anonymous namespace
+
+std::vector<Memory::CheatEntry> PatchManager::CreateCheatList(
+    const Core::System& system, const std::array<u8, 32>& build_id_) const {
+    const auto load_dir = system.GetFileSystemController().GetModificationLoadRoot(title_id);
+    if (load_dir == nullptr) {
+        LOG_ERROR(Loader, "Cannot load mods for invalid title_id={:016X}", title_id);
+        return {};
+    }
+
     auto patch_dirs = load_dir->GetSubdirectories();
     std::sort(patch_dirs.begin(), patch_dirs.end(),
               [](const VirtualDir& l, const VirtualDir& r) { return l->GetName() < r->GetName(); });
 
-    std::vector<CheatList> out;
-    out.reserve(patch_dirs.size());
+    std::vector<Memory::CheatEntry> out;
     for (const auto& subdir : patch_dirs) {
         auto cheats_dir = subdir->GetSubdirectory("cheats");
         if (cheats_dir != nullptr) {
             auto res = ReadCheatFileFromFolder(system, title_id, build_id_, cheats_dir, true);
             if (res.has_value()) {
-                out.push_back(std::move(*res));
+                std::copy(res->begin(), res->end(), std::back_inserter(out));
                 continue;
             }
 
             res = ReadCheatFileFromFolder(system, title_id, build_id_, cheats_dir, false);
-            if (res.has_value())
-                out.push_back(std::move(*res));
+            if (res.has_value()) {
+                std::copy(res->begin(), res->end(), std::back_inserter(out));
+            }
         }
     }
 
@@ -284,7 +309,8 @@ std::vector<CheatList> PatchManager::CreateCheatList(const Core::System& system,
 }
 
 static void ApplyLayeredFS(VirtualFile& romfs, u64 title_id, ContentRecordType type) {
-    const auto load_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
+    const auto load_dir =
+        Core::System::GetInstance().GetFileSystemController().GetModificationLoadRoot(title_id);
     if ((type != ContentRecordType::Program && type != ContentRecordType::Data) ||
         load_dir == nullptr || load_dir->GetSize() <= 0) {
         return;
@@ -393,6 +419,8 @@ static bool IsDirValidAndNonEmpty(const VirtualDir& dir) {
 
 std::map<std::string, std::string, std::less<>> PatchManager::GetPatchVersionNames(
     VirtualFile update_raw) const {
+    if (title_id == 0)
+        return {};
     std::map<std::string, std::string, std::less<>> out;
     const auto& installed = Core::System::GetInstance().GetContentProvider();
     const auto& disabled = Settings::values.disabled_addons[title_id];
@@ -423,7 +451,8 @@ std::map<std::string, std::string, std::less<>> PatchManager::GetPatchVersionNam
     }
 
     // General Mods (LayeredFS and IPS)
-    const auto mod_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
+    const auto mod_dir =
+        Core::System::GetInstance().GetFileSystemController().GetModificationLoadRoot(title_id);
     if (mod_dir != nullptr && mod_dir->GetSize() > 0) {
         for (const auto& mod : mod_dir->GetSubdirectories()) {
             std::string types;

src/core/file_sys/patch_manager.h

@@ -8,9 +8,9 @@
 #include <memory>
 #include <string>
 #include "common/common_types.h"
-#include "core/file_sys/cheat_engine.h"
 #include "core/file_sys/nca_metadata.h"
 #include "core/file_sys/vfs.h"
+#include "core/memory/dmnt_cheat_types.h"
 
 namespace Core {
 class System;
@@ -51,8 +51,8 @@ public:
     bool HasNSOPatch(const std::array<u8, 0x20>& build_id) const;
 
     // Creates a CheatList object with all
-    std::vector<CheatList> CreateCheatList(const Core::System& system,
-                                           const std::array<u8, 0x20>& build_id) const;
+    std::vector<Memory::CheatEntry> CreateCheatList(const Core::System& system,
+                                                    const std::array<u8, 0x20>& build_id) const;
 
     // Currently tracked RomFS patches:
     // - Game Updates

src/core/file_sys/registered_cache.cpp

@@ -3,6 +3,7 @@
 // Refer to the license.txt file included.
 
 #include <algorithm>
+#include <random>
 #include <regex>
 #include <mbedtls/sha256.h>
 #include "common/assert.h"
@@ -48,18 +49,21 @@ static bool FollowsTwoDigitDirFormat(std::string_view name) {
 static bool FollowsNcaIdFormat(std::string_view name) {
     static const std::regex nca_id_regex("[0-9A-F]{32}\\.nca", std::regex_constants::ECMAScript |
                                                                    std::regex_constants::icase);
-    return name.size() == 36 && std::regex_match(name.begin(), name.end(), nca_id_regex);
+    static const std::regex nca_id_cnmt_regex(
+        "[0-9A-F]{32}\\.cnmt.nca", std::regex_constants::ECMAScript | std::regex_constants::icase);
+    return (name.size() == 36 && std::regex_match(name.begin(), name.end(), nca_id_regex)) ||
+           (name.size() == 41 && std::regex_match(name.begin(), name.end(), nca_id_cnmt_regex));
 }
 
 static std::string GetRelativePathFromNcaID(const std::array<u8, 16>& nca_id, bool second_hex_upper,
-                                            bool within_two_digit) {
-    if (!within_two_digit) {
-        return fmt::format("/{}.nca", Common::HexToString(nca_id, 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));
 
     Core::Crypto::SHA256Hash hash{};
     mbedtls_sha256(nca_id.data(), nca_id.size(), hash.data(), 0);
-    return fmt::format("/000000{:02X}/{}.nca", hash[0],
+    return fmt::format(cnmt_suffix ? "/000000{:02X}/{}.cnmt.nca" : "/000000{:02X}/{}.nca", hash[0],
                        Common::HexToString(nca_id, second_hex_upper));
 }
 
@@ -127,6 +131,156 @@ std::vector<ContentProviderEntry> ContentProvider::ListEntries() const {
     return ListEntriesFilter(std::nullopt, std::nullopt, std::nullopt);
 }
 
+PlaceholderCache::PlaceholderCache(VirtualDir dir_) : dir(std::move(dir_)) {}
+
+bool PlaceholderCache::Create(const NcaID& id, u64 size) const {
+    const auto path = GetRelativePathFromNcaID(id, false, true, false);
+
+    if (dir->GetFileRelative(path) != nullptr) {
+        return false;
+    }
+
+    Core::Crypto::SHA256Hash hash{};
+    mbedtls_sha256(id.data(), id.size(), hash.data(), 0);
+    const auto dirname = fmt::format("000000{:02X}", hash[0]);
+
+    const auto dir2 = GetOrCreateDirectoryRelative(dir, dirname);
+
+    if (dir2 == nullptr)
+        return false;
+
+    const auto file = dir2->CreateFile(fmt::format("{}.nca", Common::HexToString(id, false)));
+
+    if (file == nullptr)
+        return false;
+
+    return file->Resize(size);
+}
+
+bool PlaceholderCache::Delete(const NcaID& id) const {
+    const auto path = GetRelativePathFromNcaID(id, false, true, false);
+
+    if (dir->GetFileRelative(path) == nullptr) {
+        return false;
+    }
+
+    Core::Crypto::SHA256Hash hash{};
+    mbedtls_sha256(id.data(), id.size(), hash.data(), 0);
+    const auto dirname = fmt::format("000000{:02X}", hash[0]);
+
+    const auto dir2 = GetOrCreateDirectoryRelative(dir, dirname);
+
+    const auto res = dir2->DeleteFile(fmt::format("{}.nca", Common::HexToString(id, false)));
+
+    return res;
+}
+
+bool PlaceholderCache::Exists(const NcaID& id) const {
+    const auto path = GetRelativePathFromNcaID(id, false, true, false);
+
+    return dir->GetFileRelative(path) != nullptr;
+}
+
+bool PlaceholderCache::Write(const NcaID& id, u64 offset, const std::vector<u8>& data) const {
+    const auto path = GetRelativePathFromNcaID(id, false, true, false);
+    const auto file = dir->GetFileRelative(path);
+
+    if (file == nullptr)
+        return false;
+
+    return file->WriteBytes(data, offset) == data.size();
+}
+
+bool PlaceholderCache::Register(RegisteredCache* cache, const NcaID& placeholder,
+                                const NcaID& install) const {
+    const auto path = GetRelativePathFromNcaID(placeholder, false, true, false);
+    const auto file = dir->GetFileRelative(path);
+
+    if (file == nullptr)
+        return false;
+
+    const auto res = cache->RawInstallNCA(NCA{file}, &VfsRawCopy, false, install);
+
+    if (res != InstallResult::Success)
+        return false;
+
+    return Delete(placeholder);
+}
+
+bool PlaceholderCache::CleanAll() const {
+    return dir->GetParentDirectory()->CleanSubdirectoryRecursive(dir->GetName());
+}
+
+std::optional<std::array<u8, 0x10>> PlaceholderCache::GetRightsID(const NcaID& id) const {
+    const auto path = GetRelativePathFromNcaID(id, false, true, false);
+    const auto file = dir->GetFileRelative(path);
+
+    if (file == nullptr)
+        return std::nullopt;
+
+    NCA nca{file};
+
+    if (nca.GetStatus() != Loader::ResultStatus::Success &&
+        nca.GetStatus() != Loader::ResultStatus::ErrorMissingBKTRBaseRomFS) {
+        return std::nullopt;
+    }
+
+    const auto rights_id = nca.GetRightsId();
+    if (rights_id == NcaID{})
+        return std::nullopt;
+
+    return rights_id;
+}
+
+u64 PlaceholderCache::Size(const NcaID& id) const {
+    const auto path = GetRelativePathFromNcaID(id, false, true, false);
+    const auto file = dir->GetFileRelative(path);
+
+    if (file == nullptr)
+        return 0;
+
+    return file->GetSize();
+}
+
+bool PlaceholderCache::SetSize(const NcaID& id, u64 new_size) const {
+    const auto path = GetRelativePathFromNcaID(id, false, true, false);
+    const auto file = dir->GetFileRelative(path);
+
+    if (file == nullptr)
+        return false;
+
+    return file->Resize(new_size);
+}
+
+std::vector<NcaID> PlaceholderCache::List() const {
+    std::vector<NcaID> out;
+    for (const auto& sdir : dir->GetSubdirectories()) {
+        for (const auto& file : sdir->GetFiles()) {
+            const auto name = file->GetName();
+            if (name.length() == 36 && name[32] == '.' && name[33] == 'n' && name[34] == 'c' &&
+                name[35] == 'a') {
+                out.push_back(Common::HexStringToArray<0x10>(name.substr(0, 32)));
+            }
+        }
+    }
+    return out;
+}
+
+NcaID PlaceholderCache::Generate() {
+    std::random_device device;
+    std::mt19937 gen(device());
+    std::uniform_int_distribution<u64> distribution(1, std::numeric_limits<u64>::max());
+
+    NcaID out{};
+
+    const auto v1 = distribution(gen);
+    const auto v2 = distribution(gen);
+    std::memcpy(out.data(), &v1, sizeof(u64));
+    std::memcpy(out.data() + sizeof(u64), &v2, sizeof(u64));
+
+    return out;
+}
+
 VirtualFile RegisteredCache::OpenFileOrDirectoryConcat(const VirtualDir& dir,
                                                        std::string_view path) const {
     const auto file = dir->GetFileRelative(path);
@@ -169,14 +323,18 @@ VirtualFile RegisteredCache::OpenFileOrDirectoryConcat(const VirtualDir& dir,
 
 VirtualFile RegisteredCache::GetFileAtID(NcaID id) const {
     VirtualFile file;
-    // Try all four modes of file storage:
-    // (bit 1 = uppercase/lower, bit 0 = within a two-digit dir)
-    // 00: /000000**/{:032X}.nca
-    // 01: /{:032X}.nca
-    // 10: /000000**/{:032x}.nca
-    // 11: /{:032x}.nca
-    for (u8 i = 0; i < 4; ++i) {
-        const auto path = GetRelativePathFromNcaID(id, (i & 0b10) == 0, (i & 0b01) == 0);
+    // Try all five relevant modes of file storage:
+    // (bit 2 = uppercase/lower, bit 1 = within a two-digit dir, bit 0 = .cnmt suffix)
+    // 000: /000000**/{:032X}.nca
+    // 010: /{:032X}.nca
+    // 100: /000000**/{:032x}.nca
+    // 110: /{:032x}.nca
+    // 111: /{:032x}.cnmt.nca
+    for (u8 i = 0; i < 8; ++i) {
+        if ((i % 2) == 1 && i != 7)
+            continue;
+        const auto path =
+            GetRelativePathFromNcaID(id, (i & 0b100) == 0, (i & 0b010) == 0, (i & 0b001) == 0b001);
         file = OpenFileOrDirectoryConcat(dir, path);
         if (file != nullptr)
             return file;
@@ -472,7 +630,7 @@ InstallResult RegisteredCache::RawInstallNCA(const NCA& nca, const VfsCopyFuncti
         memcpy(id.data(), hash.data(), 16);
     }
 
-    std::string path = GetRelativePathFromNcaID(id, false, true);
+    std::string path = GetRelativePathFromNcaID(id, false, true, false);
 
     if (GetFileAtID(id) != nullptr && !overwrite_if_exists) {
         LOG_WARNING(Loader, "Attempting to overwrite existing NCA. Skipping...");

src/core/file_sys/registered_cache.h

@@ -25,6 +25,8 @@ enum class NCAContentType : u8;
 enum class TitleType : u8;
 
 struct ContentRecord;
+struct MetaRecord;
+class RegisteredCache;
 
 using NcaID = std::array<u8, 0x10>;
 using ContentProviderParsingFunction = std::function<VirtualFile(const VirtualFile&, const NcaID&)>;
@@ -89,6 +91,27 @@ protected:
     Core::Crypto::KeyManager keys;
 };
 
+class PlaceholderCache {
+public:
+    explicit PlaceholderCache(VirtualDir dir);
+
+    bool Create(const NcaID& id, u64 size) const;
+    bool Delete(const NcaID& id) const;
+    bool Exists(const NcaID& id) const;
+    bool Write(const NcaID& id, u64 offset, const std::vector<u8>& data) const;
+    bool Register(RegisteredCache* cache, const NcaID& placeholder, const NcaID& install) const;
+    bool CleanAll() const;
+    std::optional<std::array<u8, 0x10>> GetRightsID(const NcaID& id) const;
+    u64 Size(const NcaID& id) const;
+    bool SetSize(const NcaID& id, u64 new_size) const;
+    std::vector<NcaID> List() const;
+
+    static NcaID Generate();
+
+private:
+    VirtualDir dir;
+};
+
 /*
  * A class that catalogues NCAs in the registered directory structure.
  * Nintendo's registered format follows this structure:
@@ -103,6 +126,8 @@ protected:
  * when 4GB splitting can be ignored.)
  */
 class RegisteredCache : public ContentProvider {
+    friend class PlaceholderCache;
+
 public:
     // Parsing function defines the conversion from raw file to NCA. If there are other steps
     // besides creating the NCA from the file (e.g. NAX0 on SD Card), that should go in a custom

src/core/file_sys/romfs_factory.cpp

@@ -7,6 +7,7 @@
 #include "common/common_types.h"
 #include "common/logging/log.h"
 #include "core/core.h"
+#include "core/file_sys/card_image.h"
 #include "core/file_sys/content_archive.h"
 #include "core/file_sys/nca_metadata.h"
 #include "core/file_sys/patch_manager.h"
@@ -34,7 +35,7 @@ void RomFSFactory::SetPackedUpdate(VirtualFile update_raw) {
     this->update_raw = std::move(update_raw);
 }
 
-ResultVal<VirtualFile> RomFSFactory::OpenCurrentProcess() {
+ResultVal<VirtualFile> RomFSFactory::OpenCurrentProcess() const {
     if (!updatable)
         return MakeResult<VirtualFile>(file);
 
@@ -43,7 +44,8 @@ ResultVal<VirtualFile> RomFSFactory::OpenCurrentProcess() {
         patch_manager.PatchRomFS(file, ivfc_offset, ContentRecordType::Program, update_raw));
 }
 
-ResultVal<VirtualFile> RomFSFactory::Open(u64 title_id, StorageId storage, ContentRecordType type) {
+ResultVal<VirtualFile> RomFSFactory::Open(u64 title_id, StorageId storage,
+                                          ContentRecordType type) const {
     std::shared_ptr<NCA> res;
 
     switch (storage) {
@@ -51,13 +53,17 @@ ResultVal<VirtualFile> RomFSFactory::Open(u64 title_id, StorageId storage, Conte
         res = Core::System::GetInstance().GetContentProvider().GetEntry(title_id, type);
         break;
     case StorageId::NandSystem:
-        res = Service::FileSystem::GetSystemNANDContents()->GetEntry(title_id, type);
+        res =
+            Core::System::GetInstance().GetFileSystemController().GetSystemNANDContents()->GetEntry(
+                title_id, type);
         break;
     case StorageId::NandUser:
-        res = Service::FileSystem::GetUserNANDContents()->GetEntry(title_id, type);
+        res = Core::System::GetInstance().GetFileSystemController().GetUserNANDContents()->GetEntry(
+            title_id, type);
         break;
     case StorageId::SdCard:
-        res = Service::FileSystem::GetSDMCContents()->GetEntry(title_id, type);
+        res = Core::System::GetInstance().GetFileSystemController().GetSDMCContents()->GetEntry(
+            title_id, type);
         break;
     default:
         UNIMPLEMENTED_MSG("Unimplemented storage_id={:02X}", static_cast<u8>(storage));

src/core/file_sys/romfs_factory.h

@@ -33,8 +33,8 @@ public:
     ~RomFSFactory();
 
     void SetPackedUpdate(VirtualFile update_raw);
-    ResultVal<VirtualFile> OpenCurrentProcess();
-    ResultVal<VirtualFile> Open(u64 title_id, StorageId storage, ContentRecordType type);
+    ResultVal<VirtualFile> OpenCurrentProcess() const;
+    ResultVal<VirtualFile> Open(u64 title_id, StorageId storage, ContentRecordType type) const;
 
 private:
     VirtualFile file;

src/core/file_sys/savedata_factory.cpp

@@ -15,22 +15,8 @@ namespace FileSys {
 
 constexpr char SAVE_DATA_SIZE_FILENAME[] = ".yuzu_save_size";
 
-std::string SaveDataDescriptor::DebugInfo() const {
-    return fmt::format("[type={:02X}, title_id={:016X}, user_id={:016X}{:016X}, save_id={:016X}, "
-                       "rank={}, index={}]",
-                       static_cast<u8>(type), title_id, user_id[1], user_id[0], save_id,
-                       static_cast<u8>(rank), index);
-}
-
-SaveDataFactory::SaveDataFactory(VirtualDir save_directory) : dir(std::move(save_directory)) {
-    // Delete all temporary storages
-    // On hardware, it is expected that temporary storage be empty at first use.
-    dir->DeleteSubdirectoryRecursive("temp");
-}
-
-SaveDataFactory::~SaveDataFactory() = default;
-
-ResultVal<VirtualDir> SaveDataFactory::Open(SaveDataSpaceId space, const SaveDataDescriptor& meta) {
+namespace {
+void PrintSaveDataDescriptorWarnings(SaveDataDescriptor meta) {
     if (meta.type == SaveDataType::SystemSaveData || meta.type == SaveDataType::SaveData) {
         if (meta.zero_1 != 0) {
             LOG_WARNING(Service_FS,
@@ -65,23 +51,51 @@ ResultVal<VirtualDir> SaveDataFactory::Open(SaveDataSpaceId space, const SaveDat
                     "non-zero ({:016X}{:016X})",
                     meta.user_id[1], meta.user_id[0]);
     }
+}
+} // Anonymous namespace
 
-    std::string save_directory =
+std::string SaveDataDescriptor::DebugInfo() const {
+    return fmt::format("[type={:02X}, title_id={:016X}, user_id={:016X}{:016X}, "
+                       "save_id={:016X}, "
+                       "rank={}, index={}]",
+                       static_cast<u8>(type), title_id, user_id[1], user_id[0], save_id,
+                       static_cast<u8>(rank), index);
+}
+
+SaveDataFactory::SaveDataFactory(VirtualDir save_directory) : dir(std::move(save_directory)) {
+    // Delete all temporary storages
+    // On hardware, it is expected that temporary storage be empty at first use.
+    dir->DeleteSubdirectoryRecursive("temp");
+}
+
+SaveDataFactory::~SaveDataFactory() = default;
+
+ResultVal<VirtualDir> SaveDataFactory::Create(SaveDataSpaceId space,
+                                              const SaveDataDescriptor& meta) const {
+    PrintSaveDataDescriptorWarnings(meta);
+
+    const auto save_directory =
         GetFullPath(space, meta.type, meta.title_id, meta.user_id, meta.save_id);
 
-    // TODO(DarkLordZach): Try to not create when opening, there are dedicated create save methods.
-    // But, user_ids don't match so this works for now.
+    auto out = dir->CreateDirectoryRelative(save_directory);
+
+    // Return an error if the save data doesn't actually exist.
+    if (out == nullptr) {
+        // TODO(DarkLordZach): Find out correct error code.
+        return ResultCode(-1);
+    }
+
+    return MakeResult<VirtualDir>(std::move(out));
+}
+
+ResultVal<VirtualDir> SaveDataFactory::Open(SaveDataSpaceId space,
+                                            const SaveDataDescriptor& meta) const {
+
+    const auto save_directory =
+        GetFullPath(space, meta.type, meta.title_id, meta.user_id, meta.save_id);
 
     auto out = dir->GetDirectoryRelative(save_directory);
 
-    if (out == nullptr) {
-        // TODO(bunnei): This is a work-around to always create a save data directory if it does not
-        // already exist. This is a hack, as we do not understand yet how this works on hardware.
-        // Without a save data directory, many games will assert on boot. This should not have any
-        // bad side-effects.
-        out = dir->CreateDirectoryRelative(save_directory);
-    }
-
     // Return an error if the save data doesn't actually exist.
     if (out == nullptr) {
         // TODO(Subv): Find out correct error code.
@@ -152,7 +166,7 @@ SaveDataSize SaveDataFactory::ReadSaveDataSize(SaveDataType type, u64 title_id,
 }
 
 void SaveDataFactory::WriteSaveDataSize(SaveDataType type, u64 title_id, u128 user_id,
-                                        SaveDataSize new_value) {
+                                        SaveDataSize new_value) const {
     const auto path = GetFullPath(SaveDataSpaceId::NandUser, type, title_id, user_id, 0);
     const auto dir = GetOrCreateDirectoryRelative(this->dir, path);
 

src/core/file_sys/savedata_factory.h

@@ -64,7 +64,8 @@ public:
     explicit SaveDataFactory(VirtualDir dir);
     ~SaveDataFactory();
 
-    ResultVal<VirtualDir> Open(SaveDataSpaceId space, const SaveDataDescriptor& meta);
+    ResultVal<VirtualDir> Create(SaveDataSpaceId space, const SaveDataDescriptor& meta) const;
+    ResultVal<VirtualDir> Open(SaveDataSpaceId space, const SaveDataDescriptor& meta) const;
 
     VirtualDir GetSaveDataSpaceDirectory(SaveDataSpaceId space) const;
 
@@ -73,7 +74,8 @@ public:
                                    u128 user_id, u64 save_id);
 
     SaveDataSize ReadSaveDataSize(SaveDataType type, u64 title_id, u128 user_id) const;
-    void WriteSaveDataSize(SaveDataType type, u64 title_id, u128 user_id, SaveDataSize new_value);
+    void WriteSaveDataSize(SaveDataType type, u64 title_id, u128 user_id,
+                           SaveDataSize new_value) const;
 
 private:
     VirtualDir dir;

src/core/file_sys/sdmc_factory.cpp

@@ -6,6 +6,7 @@
 #include "core/file_sys/registered_cache.h"
 #include "core/file_sys/sdmc_factory.h"
 #include "core/file_sys/xts_archive.h"
+#include "core/settings.h"
 
 namespace FileSys {
 
@@ -14,16 +15,38 @@ SDMCFactory::SDMCFactory(VirtualDir dir_)
                                 GetOrCreateDirectoryRelative(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"))) {}
 
 SDMCFactory::~SDMCFactory() = default;
 
-ResultVal<VirtualDir> SDMCFactory::Open() {
+ResultVal<VirtualDir> SDMCFactory::Open() const {
     return MakeResult<VirtualDir>(dir);
 }
 
+VirtualDir SDMCFactory::GetSDMCContentDirectory() const {
+    return GetOrCreateDirectoryRelative(dir, "/Nintendo/Contents");
+}
+
 RegisteredCache* SDMCFactory::GetSDMCContents() const {
     return contents.get();
 }
 
+PlaceholderCache* SDMCFactory::GetSDMCPlaceholder() const {
+    return placeholder.get();
+}
+
+VirtualDir SDMCFactory::GetImageDirectory() const {
+    return GetOrCreateDirectoryRelative(dir, "/Nintendo/Album");
+}
+
+u64 SDMCFactory::GetSDMCFreeSpace() const {
+    return GetSDMCTotalSpace() - dir->GetSize();
+}
+
+u64 SDMCFactory::GetSDMCTotalSpace() const {
+    return static_cast<u64>(Settings::values.sdmc_size);
+}
+
 } // namespace FileSys

src/core/file_sys/sdmc_factory.h

@@ -11,6 +11,7 @@
 namespace FileSys {
 
 class RegisteredCache;
+class PlaceholderCache;
 
 /// File system interface to the SDCard archive
 class SDMCFactory {
@@ -18,13 +19,23 @@ public:
     explicit SDMCFactory(VirtualDir dir);
     ~SDMCFactory();
 
-    ResultVal<VirtualDir> Open();
+    ResultVal<VirtualDir> Open() const;
+
+    VirtualDir GetSDMCContentDirectory() const;
+
     RegisteredCache* GetSDMCContents() const;
+    PlaceholderCache* GetSDMCPlaceholder() const;
+
+    VirtualDir GetImageDirectory() const;
+
+    u64 GetSDMCFreeSpace() const;
+    u64 GetSDMCTotalSpace() const;
 
 private:
     VirtualDir dir;
 
     std::unique_ptr<RegisteredCache> contents;
+    std::unique_ptr<PlaceholderCache> placeholder;
 };
 
 } // namespace FileSys

src/core/file_sys/submission_package.cpp

@@ -14,6 +14,7 @@
 #include "core/file_sys/content_archive.h"
 #include "core/file_sys/nca_metadata.h"
 #include "core/file_sys/partition_filesystem.h"
+#include "core/file_sys/program_metadata.h"
 #include "core/file_sys/submission_package.h"
 #include "core/loader/loader.h"
 
@@ -78,6 +79,10 @@ Loader::ResultStatus NSP::GetStatus() const {
 }
 
 Loader::ResultStatus NSP::GetProgramStatus(u64 title_id) const {
+    if (IsExtractedType() && GetExeFS() != nullptr && FileSys::IsDirectoryExeFS(GetExeFS())) {
+        return Loader::ResultStatus::Success;
+    }
+
     const auto iter = program_status.find(title_id);
     if (iter == program_status.end())
         return Loader::ResultStatus::ErrorNSPMissingProgramNCA;
@@ -85,12 +90,29 @@ Loader::ResultStatus NSP::GetProgramStatus(u64 title_id) const {
 }
 
 u64 NSP::GetFirstTitleID() const {
+    if (IsExtractedType()) {
+        return GetProgramTitleID();
+    }
+
     if (program_status.empty())
         return 0;
     return program_status.begin()->first;
 }
 
 u64 NSP::GetProgramTitleID() const {
+    if (IsExtractedType()) {
+        if (GetExeFS() == nullptr || !IsDirectoryExeFS(GetExeFS())) {
+            return 0;
+        }
+
+        ProgramMetadata meta;
+        if (meta.Load(GetExeFS()->GetFile("main.npdm")) == Loader::ResultStatus::Success) {
+            return meta.GetTitleID();
+        } else {
+            return 0;
+        }
+    }
+
     const auto out = GetFirstTitleID();
     if ((out & 0x800) == 0)
         return out;
@@ -102,6 +124,10 @@ u64 NSP::GetProgramTitleID() const {
 }
 
 std::vector<u64> NSP::GetTitleIDs() const {
+    if (IsExtractedType()) {
+        return {GetProgramTitleID()};
+    }
+
     std::vector<u64> out;
     out.reserve(ncas.size());
     for (const auto& kv : ncas)
@@ -222,7 +248,8 @@ void NSP::InitializeExeFSAndRomFS(const std::vector<VirtualFile>& files) {
 
 void NSP::ReadNCAs(const std::vector<VirtualFile>& files) {
     for (const auto& outer_file : files) {
-        if (outer_file->GetName().substr(outer_file->GetName().size() - 9) != ".cnmt.nca") {
+        if (outer_file->GetName().size() < 9 ||
+            outer_file->GetName().substr(outer_file->GetName().size() - 9) != ".cnmt.nca") {
             continue;
         }
 

src/core/file_sys/vfs_libzip.cpp

@@ -0,0 +1,79 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <string>
+#include <zip.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"
+
+namespace FileSys {
+
+VirtualDir ExtractZIP(VirtualFile file) {
+    zip_error_t error{};
+
+    const auto data = file->ReadAllBytes();
+    std::unique_ptr<zip_source_t, decltype(&zip_source_close)> src{
+        zip_source_buffer_create(data.data(), data.size(), 0, &error), zip_source_close};
+    if (src == nullptr)
+        return nullptr;
+
+    std::unique_ptr<zip_t, decltype(&zip_close)> zip{zip_open_from_source(src.get(), 0, &error),
+                                                     zip_close};
+    if (zip == nullptr)
+        return nullptr;
+
+    std::shared_ptr<VectorVfsDirectory> out = std::make_shared<VectorVfsDirectory>();
+
+    const auto num_entries = zip_get_num_entries(zip.get(), 0);
+
+    zip_stat_t stat{};
+    zip_stat_init(&stat);
+
+    for (std::size_t i = 0; i < num_entries; ++i) {
+        const auto stat_res = zip_stat_index(zip.get(), i, 0, &stat);
+        if (stat_res == -1)
+            return nullptr;
+
+        const std::string name(stat.name);
+        if (name.empty())
+            continue;
+
+        if (name.back() != '/') {
+            std::unique_ptr<zip_file_t, decltype(&zip_fclose)> file{
+                zip_fopen_index(zip.get(), i, 0), zip_fclose};
+
+            std::vector<u8> buf(stat.size);
+            if (zip_fread(file.get(), buf.data(), buf.size()) != buf.size())
+                return nullptr;
+
+            const auto parts = FileUtil::SplitPathComponents(stat.name);
+            const auto new_file = std::make_shared<VectorVfsFile>(buf, parts.back());
+
+            std::shared_ptr<VectorVfsDirectory> dtrv = out;
+            for (std::size_t j = 0; j < parts.size() - 1; ++j) {
+                if (dtrv == nullptr)
+                    return nullptr;
+                const auto subdir = dtrv->GetSubdirectory(parts[j]);
+                if (subdir == nullptr) {
+                    const auto temp = std::make_shared<VectorVfsDirectory>(
+                        std::vector<VirtualFile>{}, std::vector<VirtualDir>{}, parts[j]);
+                    dtrv->AddDirectory(temp);
+                    dtrv = temp;
+                } else {
+                    dtrv = std::dynamic_pointer_cast<VectorVfsDirectory>(subdir);
+                }
+            }
+
+            if (dtrv == nullptr)
+                return nullptr;
+            dtrv->AddFile(new_file);
+        }
+    }
+
+    return out;
+}
+
+} // namespace FileSys

src/core/file_sys/vfs_libzip.h

@@ -0,0 +1,13 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/file_sys/vfs_types.h"
+
+namespace FileSys {
+
+VirtualDir ExtractZIP(VirtualFile zip);
+
+} // namespace FileSys

src/core/hle/service/acc/acc.cpp

@@ -31,6 +31,9 @@
 
 namespace Service::Account {
 
+constexpr ResultCode ERR_INVALID_BUFFER_SIZE{ErrorModule::Account, 30};
+constexpr ResultCode ERR_FAILED_SAVE_DATA{ErrorModule::Account, 100};
+
 static std::string GetImagePath(Common::UUID uuid) {
     return FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) +
            "/system/save/8000000000000010/su/avators/" + uuid.FormatSwitch() + ".jpg";
@@ -41,22 +44,33 @@ static constexpr u32 SanitizeJPEGSize(std::size_t size) {
     return static_cast<u32>(std::min(size, max_jpeg_image_size));
 }
 
-class IProfile final : public ServiceFramework<IProfile> {
+class IProfileCommon : public ServiceFramework<IProfileCommon> {
 public:
-    explicit IProfile(Common::UUID user_id, ProfileManager& profile_manager)
-        : ServiceFramework("IProfile"), profile_manager(profile_manager), user_id(user_id) {
+    explicit IProfileCommon(const char* name, bool editor_commands, Common::UUID user_id,
+                            ProfileManager& profile_manager)
+        : ServiceFramework(name), profile_manager(profile_manager), user_id(user_id) {
         static const FunctionInfo functions[] = {
-            {0, &IProfile::Get, "Get"},
-            {1, &IProfile::GetBase, "GetBase"},
-            {10, &IProfile::GetImageSize, "GetImageSize"},
-            {11, &IProfile::LoadImage, "LoadImage"},
+            {0, &IProfileCommon::Get, "Get"},
+            {1, &IProfileCommon::GetBase, "GetBase"},
+            {10, &IProfileCommon::GetImageSize, "GetImageSize"},
+            {11, &IProfileCommon::LoadImage, "LoadImage"},
         };
+
         RegisterHandlers(functions);
+
+        if (editor_commands) {
+            static const FunctionInfo editor_functions[] = {
+                {100, &IProfileCommon::Store, "Store"},
+                {101, &IProfileCommon::StoreWithImage, "StoreWithImage"},
+            };
+
+            RegisterHandlers(editor_functions);
+        }
     }
 
-private:
+protected:
     void Get(Kernel::HLERequestContext& ctx) {
-        LOG_INFO(Service_ACC, "called user_id={}", user_id.Format());
+        LOG_DEBUG(Service_ACC, "called user_id={}", user_id.Format());
         ProfileBase profile_base{};
         ProfileData data{};
         if (profile_manager.GetProfileBaseAndData(user_id, profile_base, data)) {
@@ -75,7 +89,7 @@ private:
     }
 
     void GetBase(Kernel::HLERequestContext& ctx) {
-        LOG_INFO(Service_ACC, "called user_id={}", user_id.Format());
+        LOG_DEBUG(Service_ACC, "called user_id={}", user_id.Format());
         ProfileBase profile_base{};
         if (profile_manager.GetProfileBase(user_id, profile_base)) {
             IPC::ResponseBuilder rb{ctx, 16};
@@ -127,10 +141,91 @@ private:
         }
     }
 
-    const ProfileManager& profile_manager;
+    void Store(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto base = rp.PopRaw<ProfileBase>();
+
+        const auto user_data = ctx.ReadBuffer();
+
+        LOG_DEBUG(Service_ACC, "called, username='{}', timestamp={:016X}, uuid={}",
+                  Common::StringFromFixedZeroTerminatedBuffer(
+                      reinterpret_cast<const char*>(base.username.data()), base.username.size()),
+                  base.timestamp, base.user_uuid.Format());
+
+        if (user_data.size() < sizeof(ProfileData)) {
+            LOG_ERROR(Service_ACC, "ProfileData buffer too small!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERR_INVALID_BUFFER_SIZE);
+            return;
+        }
+
+        ProfileData data;
+        std::memcpy(&data, user_data.data(), sizeof(ProfileData));
+
+        if (!profile_manager.SetProfileBaseAndData(user_id, base, data)) {
+            LOG_ERROR(Service_ACC, "Failed to update profile data and base!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERR_FAILED_SAVE_DATA);
+            return;
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void StoreWithImage(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto base = rp.PopRaw<ProfileBase>();
+
+        const auto user_data = ctx.ReadBuffer();
+        const auto image_data = ctx.ReadBuffer(1);
+
+        LOG_DEBUG(Service_ACC, "called, username='{}', timestamp={:016X}, uuid={}",
+                  Common::StringFromFixedZeroTerminatedBuffer(
+                      reinterpret_cast<const char*>(base.username.data()), base.username.size()),
+                  base.timestamp, base.user_uuid.Format());
+
+        if (user_data.size() < sizeof(ProfileData)) {
+            LOG_ERROR(Service_ACC, "ProfileData buffer too small!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERR_INVALID_BUFFER_SIZE);
+            return;
+        }
+
+        ProfileData data;
+        std::memcpy(&data, user_data.data(), sizeof(ProfileData));
+
+        FileUtil::IOFile image(GetImagePath(user_id), "wb");
+
+        if (!image.IsOpen() || !image.Resize(image_data.size()) ||
+            image.WriteBytes(image_data.data(), image_data.size()) != image_data.size() ||
+            !profile_manager.SetProfileBaseAndData(user_id, base, data)) {
+            LOG_ERROR(Service_ACC, "Failed to update profile data, base, and image!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERR_FAILED_SAVE_DATA);
+            return;
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    ProfileManager& profile_manager;
     Common::UUID user_id; ///< The user id this profile refers to.
 };
 
+class IProfile final : public IProfileCommon {
+public:
+    IProfile(Common::UUID user_id, ProfileManager& profile_manager)
+        : IProfileCommon("IProfile", false, user_id, profile_manager) {}
+};
+
+class IProfileEditor final : public IProfileCommon {
+public:
+    IProfileEditor(Common::UUID user_id, ProfileManager& profile_manager)
+        : IProfileCommon("IProfileEditor", true, user_id, profile_manager) {}
+};
+
 class IManagerForApplication final : public ServiceFramework<IManagerForApplication> {
 public:
     IManagerForApplication() : ServiceFramework("IManagerForApplication") {
@@ -168,7 +263,7 @@ private:
 };
 
 void Module::Interface::GetUserCount(Kernel::HLERequestContext& ctx) {
-    LOG_INFO(Service_ACC, "called");
+    LOG_DEBUG(Service_ACC, "called");
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
     rb.Push<u32>(static_cast<u32>(profile_manager->GetUserCount()));
@@ -177,7 +272,7 @@ void Module::Interface::GetUserCount(Kernel::HLERequestContext& ctx) {
 void Module::Interface::GetUserExistence(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     Common::UUID user_id = rp.PopRaw<Common::UUID>();
-    LOG_INFO(Service_ACC, "called user_id={}", user_id.Format());
+    LOG_DEBUG(Service_ACC, "called user_id={}", user_id.Format());
 
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
@@ -185,21 +280,21 @@ void Module::Interface::GetUserExistence(Kernel::HLERequestContext& ctx) {
 }
 
 void Module::Interface::ListAllUsers(Kernel::HLERequestContext& ctx) {
-    LOG_INFO(Service_ACC, "called");
+    LOG_DEBUG(Service_ACC, "called");
     ctx.WriteBuffer(profile_manager->GetAllUsers());
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
 
 void Module::Interface::ListOpenUsers(Kernel::HLERequestContext& ctx) {
-    LOG_INFO(Service_ACC, "called");
+    LOG_DEBUG(Service_ACC, "called");
     ctx.WriteBuffer(profile_manager->GetOpenUsers());
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
 
 void Module::Interface::GetLastOpenedUser(Kernel::HLERequestContext& ctx) {
-    LOG_INFO(Service_ACC, "called");
+    LOG_DEBUG(Service_ACC, "called");
     IPC::ResponseBuilder rb{ctx, 6};
     rb.Push(RESULT_SUCCESS);
     rb.PushRaw<Common::UUID>(profile_manager->GetLastOpenedUser());
@@ -322,6 +417,17 @@ void Module::Interface::IsUserAccountSwitchLocked(Kernel::HLERequestContext& ctx
     rb.Push(is_locked);
 }
 
+void Module::Interface::GetProfileEditor(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    Common::UUID user_id = rp.PopRaw<Common::UUID>();
+
+    LOG_DEBUG(Service_ACC, "called, user_id={}", user_id.Format());
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface<IProfileEditor>(user_id, *profile_manager);
+}
+
 void Module::Interface::TrySelectUserWithoutInteraction(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_ACC, "called");
     // A u8 is passed into this function which we can safely ignore. It's to determine if we have

src/core/hle/service/acc/acc.h

@@ -32,6 +32,7 @@ public:
         void IsUserRegistrationRequestPermitted(Kernel::HLERequestContext& ctx);
         void TrySelectUserWithoutInteraction(Kernel::HLERequestContext& ctx);
         void IsUserAccountSwitchLocked(Kernel::HLERequestContext& ctx);
+        void GetProfileEditor(Kernel::HLERequestContext& ctx);
 
     private:
         ResultCode InitializeApplicationInfoBase(u64 process_id);

src/core/hle/service/acc/acc_su.cpp

@@ -41,7 +41,7 @@ ACC_SU::ACC_SU(std::shared_ptr<Module> module, std::shared_ptr<ProfileManager> p
         {202, nullptr, "CancelUserRegistration"},
         {203, nullptr, "DeleteUser"},
         {204, nullptr, "SetUserPosition"},
-        {205, nullptr, "GetProfileEditor"},
+        {205, &ACC_SU::GetProfileEditor, "GetProfileEditor"},
         {206, nullptr, "CompleteUserRegistrationForcibly"},
         {210, nullptr, "CreateFloatingRegistrationRequest"},
         {230, nullptr, "AuthenticateServiceAsync"},

src/core/hle/service/acc/profile_manager.cpp

@@ -305,6 +305,17 @@ bool ProfileManager::SetProfileBase(UUID uuid, const ProfileBase& profile_new) {
     return true;
 }
 
+bool ProfileManager::SetProfileBaseAndData(Common::UUID uuid, const ProfileBase& profile_new,
+                                           const ProfileData& data_new) {
+    const auto index = GetUserIndex(uuid);
+    if (index.has_value() && SetProfileBase(uuid, profile_new)) {
+        profiles[*index].data = data_new;
+        return true;
+    }
+
+    return false;
+}
+
 void ProfileManager::ParseUserSaveFile() {
     FileUtil::IOFile save(FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) +
                               ACC_SAVE_AVATORS_BASE_PATH + "profiles.dat",

src/core/hle/service/acc/profile_manager.h

@@ -91,6 +91,8 @@ public:
 
     bool RemoveUser(Common::UUID uuid);
     bool SetProfileBase(Common::UUID uuid, const ProfileBase& profile_new);
+    bool SetProfileBaseAndData(Common::UUID uuid, const ProfileBase& profile_new,
+                               const ProfileData& data_new);
 
 private:
     void ParseUserSaveFile();

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

@@ -31,6 +31,7 @@
 #include "core/hle/service/am/tcap.h"
 #include "core/hle/service/apm/controller.h"
 #include "core/hle/service/apm/interface.h"
+#include "core/hle/service/bcat/backend/backend.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/ns/ns.h"
 #include "core/hle/service/nvflinger/nvflinger.h"
@@ -46,15 +47,20 @@ constexpr ResultCode ERR_NO_DATA_IN_CHANNEL{ErrorModule::AM, 0x2};
 constexpr ResultCode ERR_NO_MESSAGES{ErrorModule::AM, 0x3};
 constexpr ResultCode ERR_SIZE_OUT_OF_BOUNDS{ErrorModule::AM, 0x1F7};
 
-constexpr u32 POP_LAUNCH_PARAMETER_MAGIC = 0xC79497CA;
+enum class LaunchParameterKind : u32 {
+    ApplicationSpecific = 1,
+    AccountPreselectedUser = 2,
+};
 
-struct LaunchParameters {
+constexpr u32 LAUNCH_PARAMETER_ACCOUNT_PRESELECTED_USER_MAGIC = 0xC79497CA;
+
+struct LaunchParameterAccountPreselectedUser {
     u32_le magic;
     u32_le is_account_selected;
     u128 current_user;
     INSERT_PADDING_BYTES(0x70);
 };
-static_assert(sizeof(LaunchParameters) == 0x88);
+static_assert(sizeof(LaunchParameterAccountPreselectedUser) == 0x88);
 
 IWindowController::IWindowController(Core::System& system_)
     : ServiceFramework("IWindowController"), system{system_} {
@@ -232,12 +238,12 @@ IDebugFunctions::IDebugFunctions() : ServiceFramework{"IDebugFunctions"} {
 
 IDebugFunctions::~IDebugFunctions() = default;
 
-ISelfController::ISelfController(Core::System& system_,
-                                 std::shared_ptr<NVFlinger::NVFlinger> nvflinger_)
-    : ServiceFramework("ISelfController"), nvflinger(std::move(nvflinger_)) {
+ISelfController::ISelfController(Core::System& system,
+                                 std::shared_ptr<NVFlinger::NVFlinger> nvflinger)
+    : ServiceFramework("ISelfController"), system(system), nvflinger(std::move(nvflinger)) {
     // clang-format off
     static const FunctionInfo functions[] = {
-        {0, nullptr, "Exit"},
+        {0, &ISelfController::Exit, "Exit"},
         {1, &ISelfController::LockExit, "LockExit"},
         {2, &ISelfController::UnlockExit, "UnlockExit"},
         {3, &ISelfController::EnterFatalSection, "EnterFatalSection"},
@@ -282,7 +288,7 @@ ISelfController::ISelfController(Core::System& system_,
 
     RegisterHandlers(functions);
 
-    auto& kernel = system_.Kernel();
+    auto& kernel = system.Kernel();
     launchable_event = Kernel::WritableEvent::CreateEventPair(kernel, Kernel::ResetType::Manual,
                                                               "ISelfController:LaunchableEvent");
 
@@ -298,15 +304,28 @@ ISelfController::ISelfController(Core::System& system_,
 
 ISelfController::~ISelfController() = default;
 
+void ISelfController::Exit(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_AM, "called");
+
+    system.Shutdown();
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
 void ISelfController::LockExit(Kernel::HLERequestContext& ctx) {
-    LOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_DEBUG(Service_AM, "called");
+
+    system.SetExitLock(true);
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
 
 void ISelfController::UnlockExit(Kernel::HLERequestContext& ctx) {
-    LOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_DEBUG(Service_AM, "called");
+
+    system.SetExitLock(false);
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
@@ -550,6 +569,10 @@ void AppletMessageQueue::OperationModeChanged() {
     on_operation_mode_changed.writable->Signal();
 }
 
+void AppletMessageQueue::RequestExit() {
+    PushMessage(AppletMessage::ExitRequested);
+}
+
 ICommonStateGetter::ICommonStateGetter(Core::System& system,
                                        std::shared_ptr<AppletMessageQueue> msg_queue)
     : ServiceFramework("ICommonStateGetter"), system(system), msg_queue(std::move(msg_queue)) {
@@ -1066,7 +1089,7 @@ IApplicationFunctions::IApplicationFunctions(Core::System& system_)
 
     RegisterHandlers(functions);
 
-    auto& kernel = Core::System::GetInstance().Kernel();
+    auto& kernel = system.Kernel();
     gpu_error_detected_event = Kernel::WritableEvent::CreateEventPair(
         kernel, Kernel::ResetType::Manual, "IApplicationFunctions:GpuErrorDetectedSystemEvent");
 }
@@ -1111,26 +1134,55 @@ void IApplicationFunctions::EndBlockingHomeButton(Kernel::HLERequestContext& ctx
 }
 
 void IApplicationFunctions::PopLaunchParameter(Kernel::HLERequestContext& ctx) {
-    LOG_DEBUG(Service_AM, "called");
+    IPC::RequestParser rp{ctx};
+    const auto kind = rp.PopEnum<LaunchParameterKind>();
 
-    LaunchParameters params{};
+    LOG_DEBUG(Service_AM, "called, kind={:08X}", static_cast<u8>(kind));
 
-    params.magic = POP_LAUNCH_PARAMETER_MAGIC;
-    params.is_account_selected = 1;
+    if (kind == LaunchParameterKind::ApplicationSpecific && !launch_popped_application_specific) {
+        const auto backend = BCAT::CreateBackendFromSettings(
+            [this](u64 tid) { return system.GetFileSystemController().GetBCATDirectory(tid); });
+        const auto build_id_full = Core::System::GetInstance().GetCurrentProcessBuildID();
+        u64 build_id{};
+        std::memcpy(&build_id, build_id_full.data(), sizeof(u64));
 
-    Account::ProfileManager profile_manager{};
-    const auto uuid = profile_manager.GetUser(Settings::values.current_user);
-    ASSERT(uuid);
-    params.current_user = uuid->uuid;
+        const auto data =
+            backend->GetLaunchParameter({Core::CurrentProcess()->GetTitleID(), build_id});
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        if (data.has_value()) {
+            IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+            rb.Push(RESULT_SUCCESS);
+            rb.PushIpcInterface<AM::IStorage>(*data);
+            launch_popped_application_specific = true;
+            return;
+        }
+    } else if (kind == LaunchParameterKind::AccountPreselectedUser &&
+               !launch_popped_account_preselect) {
+        LaunchParameterAccountPreselectedUser params{};
 
-    rb.Push(RESULT_SUCCESS);
+        params.magic = LAUNCH_PARAMETER_ACCOUNT_PRESELECTED_USER_MAGIC;
+        params.is_account_selected = 1;
 
-    std::vector<u8> buffer(sizeof(LaunchParameters));
-    std::memcpy(buffer.data(), &params, buffer.size());
+        Account::ProfileManager profile_manager{};
+        const auto uuid = profile_manager.GetUser(Settings::values.current_user);
+        ASSERT(uuid);
+        params.current_user = uuid->uuid;
 
-    rb.PushIpcInterface<AM::IStorage>(buffer);
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+
+        rb.Push(RESULT_SUCCESS);
+
+        std::vector<u8> buffer(sizeof(LaunchParameterAccountPreselectedUser));
+        std::memcpy(buffer.data(), &params, buffer.size());
+
+        rb.PushIpcInterface<AM::IStorage>(buffer);
+        launch_popped_account_preselect = true;
+        return;
+    }
+
+    LOG_ERROR(Service_AM, "Attempted to load launch parameter but none was found!");
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ERR_NO_DATA_IN_CHANNEL);
 }
 
 void IApplicationFunctions::CreateApplicationAndRequestToStartForQuest(
@@ -1143,13 +1195,21 @@ void IApplicationFunctions::CreateApplicationAndRequestToStartForQuest(
 
 void IApplicationFunctions::EnsureSaveData(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
-    u128 uid = rp.PopRaw<u128>(); // What does this do?
-    LOG_WARNING(Service, "(STUBBED) called uid = {:016X}{:016X}", uid[1], uid[0]);
+    u128 user_id = rp.PopRaw<u128>();
+
+    LOG_DEBUG(Service_AM, "called, uid={:016X}{:016X}", user_id[1], user_id[0]);
+
+    FileSys::SaveDataDescriptor descriptor{};
+    descriptor.title_id = Core::CurrentProcess()->GetTitleID();
+    descriptor.user_id = user_id;
+    descriptor.type = FileSys::SaveDataType::SaveData;
+    const auto res = system.GetFileSystemController().CreateSaveData(
+        FileSys::SaveDataSpaceId::NandUser, descriptor);
 
     IPC::ResponseBuilder rb{ctx, 4};
-    rb.Push(RESULT_SUCCESS);
+    rb.Push(res.Code());
     rb.Push<u64>(0);
-} // namespace Service::AM
+}
 
 void IApplicationFunctions::SetTerminateResult(Kernel::HLERequestContext& ctx) {
     // Takes an input u32 Result, no output.
@@ -1261,8 +1321,8 @@ void IApplicationFunctions::ExtendSaveData(Kernel::HLERequestContext& ctx) {
               "new_journal={:016X}",
               static_cast<u8>(type), user_id[1], user_id[0], new_normal_size, new_journal_size);
 
-    const auto title_id = system.CurrentProcess()->GetTitleID();
-    FileSystem::WriteSaveDataSize(type, title_id, user_id, {new_normal_size, new_journal_size});
+    system.GetFileSystemController().WriteSaveDataSize(
+        type, system.CurrentProcess()->GetTitleID(), user_id, {new_normal_size, new_journal_size});
 
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(RESULT_SUCCESS);
@@ -1281,8 +1341,8 @@ void IApplicationFunctions::GetSaveDataSize(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_AM, "called with type={:02X}, user_id={:016X}{:016X}", static_cast<u8>(type),
               user_id[1], user_id[0]);
 
-    const auto title_id = system.CurrentProcess()->GetTitleID();
-    const auto size = FileSystem::ReadSaveDataSize(type, title_id, user_id);
+    const auto size = system.GetFileSystemController().ReadSaveDataSize(
+        type, system.CurrentProcess()->GetTitleID(), user_id);
 
     IPC::ResponseBuilder rb{ctx, 6};
     rb.Push(RESULT_SUCCESS);

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

@@ -45,6 +45,7 @@ class AppletMessageQueue {
 public:
     enum class AppletMessage : u32 {
         NoMessage = 0,
+        ExitRequested = 4,
         FocusStateChanged = 15,
         OperationModeChanged = 30,
         PerformanceModeChanged = 31,
@@ -59,6 +60,7 @@ public:
     AppletMessage PopMessage();
     std::size_t GetMessageCount() const;
     void OperationModeChanged();
+    void RequestExit();
 
 private:
     std::queue<AppletMessage> messages;
@@ -123,6 +125,7 @@ public:
     ~ISelfController() override;
 
 private:
+    void Exit(Kernel::HLERequestContext& ctx);
     void LockExit(Kernel::HLERequestContext& ctx);
     void UnlockExit(Kernel::HLERequestContext& ctx);
     void EnterFatalSection(Kernel::HLERequestContext& ctx);
@@ -151,6 +154,8 @@ private:
     u32 idle_time_detection_extension = 0;
     u64 num_fatal_sections_entered = 0;
     bool is_auto_sleep_disabled = false;
+
+    Core::System& system;
 };
 
 class ICommonStateGetter final : public ServiceFramework<ICommonStateGetter> {
@@ -250,6 +255,8 @@ private:
     void EnableApplicationCrashReport(Kernel::HLERequestContext& ctx);
     void GetGpuErrorDetectedSystemEvent(Kernel::HLERequestContext& ctx);
 
+    bool launch_popped_application_specific = false;
+    bool launch_popped_account_preselect = false;
     Kernel::EventPair gpu_error_detected_event;
     Core::System& system;
 };

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

@@ -9,12 +9,18 @@
 #include "core/hle/service/service.h"
 
 namespace Service {
+namespace FileSystem {
+class FileSystemController;
+}
+
 namespace NVFlinger {
 class NVFlinger;
 }
 
 namespace AM {
 
+class AppletMessageQueue;
+
 class AppletAE final : public ServiceFramework<AppletAE> {
 public:
     explicit AppletAE(std::shared_ptr<NVFlinger::NVFlinger> nvflinger,

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

@@ -9,12 +9,18 @@
 #include "core/hle/service/service.h"
 
 namespace Service {
+namespace FileSystem {
+class FileSystemController;
+}
+
 namespace NVFlinger {
 class NVFlinger;
 }
 
 namespace AM {
 
+class AppletMessageQueue;
+
 class AppletOE final : public ServiceFramework<AppletOE> {
 public:
     explicit AppletOE(std::shared_ptr<NVFlinger::NVFlinger> nvflinger,

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

@@ -157,6 +157,10 @@ AppletManager::AppletManager(Core::System& system_) : system{system_} {}
 
 AppletManager::~AppletManager() = default;
 
+const AppletFrontendSet& AppletManager::GetAppletFrontendSet() const {
+    return frontend;
+}
+
 void AppletManager::SetAppletFrontendSet(AppletFrontendSet set) {
     if (set.parental_controls != nullptr)
         frontend.parental_controls = std::move(set.parental_controls);

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

@@ -190,6 +190,8 @@ public:
     explicit AppletManager(Core::System& system_);
     ~AppletManager();
 
+    const AppletFrontendSet& GetAppletFrontendSet() const;
+
     void SetAppletFrontendSet(AppletFrontendSet set);
     void SetDefaultAppletFrontendSet();
     void SetDefaultAppletsIfMissing();

src/core/hle/service/aoc/aoc_u.cpp

@@ -29,9 +29,9 @@ static bool CheckAOCTitleIDMatchesBase(u64 title_id, u64 base) {
     return (title_id & DLC_BASE_TITLE_ID_MASK) == base;
 }
 
-static std::vector<u64> AccumulateAOCTitleIDs() {
+static std::vector<u64> AccumulateAOCTitleIDs(Core::System& system) {
     std::vector<u64> add_on_content;
-    const auto& rcu = Core::System::GetInstance().GetContentProvider();
+    const auto& rcu = system.GetContentProvider();
     const auto list =
         rcu.ListEntriesFilter(FileSys::TitleType::AOC, FileSys::ContentRecordType::Data);
     std::transform(list.begin(), list.end(), std::back_inserter(add_on_content),
@@ -47,7 +47,8 @@ static std::vector<u64> AccumulateAOCTitleIDs() {
     return add_on_content;
 }
 
-AOC_U::AOC_U() : ServiceFramework("aoc:u"), add_on_content(AccumulateAOCTitleIDs()) {
+AOC_U::AOC_U(Core::System& system)
+    : ServiceFramework("aoc:u"), add_on_content(AccumulateAOCTitleIDs(system)), system(system) {
     // clang-format off
     static const FunctionInfo functions[] = {
         {0, nullptr, "CountAddOnContentByApplicationId"},
@@ -65,7 +66,7 @@ AOC_U::AOC_U() : ServiceFramework("aoc:u"), add_on_content(AccumulateAOCTitleIDs
 
     RegisterHandlers(functions);
 
-    auto& kernel = Core::System::GetInstance().Kernel();
+    auto& kernel = system.Kernel();
     aoc_change_event = Kernel::WritableEvent::CreateEventPair(kernel, Kernel::ResetType::Manual,
                                                               "GetAddOnContentListChanged:Event");
 }
@@ -86,7 +87,7 @@ void AOC_U::CountAddOnContent(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
 
-    const auto current = Core::System::GetInstance().CurrentProcess()->GetTitleID();
+    const auto current = system.CurrentProcess()->GetTitleID();
 
     const auto& disabled = Settings::values.disabled_addons[current];
     if (std::find(disabled.begin(), disabled.end(), "DLC") != disabled.end()) {
@@ -113,7 +114,7 @@ void AOC_U::ListAddOnContent(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_AOC, "called with offset={}, count={}, process_id={}", offset, count,
               process_id);
 
-    const auto current = Core::System::GetInstance().CurrentProcess()->GetTitleID();
+    const auto current = system.CurrentProcess()->GetTitleID();
 
     std::vector<u32> out;
     const auto& disabled = Settings::values.disabled_addons[current];
@@ -159,7 +160,7 @@ void AOC_U::GetAddOnContentBaseId(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(RESULT_SUCCESS);
 
-    const auto title_id = Core::System::GetInstance().CurrentProcess()->GetTitleID();
+    const auto title_id = system.CurrentProcess()->GetTitleID();
     FileSys::PatchManager pm{title_id};
 
     const auto res = pm.GetControlMetadata();
@@ -196,8 +197,8 @@ void AOC_U::GetAddOnContentListChangedEvent(Kernel::HLERequestContext& ctx) {
     rb.PushCopyObjects(aoc_change_event.readable);
 }
 
-void InstallInterfaces(SM::ServiceManager& service_manager) {
-    std::make_shared<AOC_U>()->InstallAsService(service_manager);
+void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system) {
+    std::make_shared<AOC_U>(system)->InstallAsService(service_manager);
 }
 
 } // namespace Service::AOC

src/core/hle/service/aoc/aoc_u.h

@@ -14,7 +14,7 @@ namespace Service::AOC {
 
 class AOC_U final : public ServiceFramework<AOC_U> {
 public:
-    AOC_U();
+    explicit AOC_U(Core::System& system);
     ~AOC_U() override;
 
 private:
@@ -26,9 +26,10 @@ private:
 
     std::vector<u64> add_on_content;
     Kernel::EventPair aoc_change_event;
+    Core::System& system;
 };
 
 /// Registers all AOC services with the specified service manager.
-void InstallInterfaces(SM::ServiceManager& service_manager);
+void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system);
 
 } // namespace Service::AOC

src/core/hle/service/bcat/backend/backend.cpp

@@ -0,0 +1,136 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/hex_util.h"
+#include "common/logging/log.h"
+#include "core/core.h"
+#include "core/hle/lock.h"
+#include "core/hle/service/bcat/backend/backend.h"
+
+namespace Service::BCAT {
+
+ProgressServiceBackend::ProgressServiceBackend(std::string event_name) : impl{} {
+    auto& kernel{Core::System::GetInstance().Kernel()};
+    event = Kernel::WritableEvent::CreateEventPair(
+        kernel, Kernel::ResetType::Automatic, "ProgressServiceBackend:UpdateEvent:" + event_name);
+}
+
+Kernel::SharedPtr<Kernel::ReadableEvent> ProgressServiceBackend::GetEvent() {
+    return event.readable;
+}
+
+DeliveryCacheProgressImpl& ProgressServiceBackend::GetImpl() {
+    return impl;
+}
+
+void ProgressServiceBackend::SetNeedHLELock(bool need) {
+    need_hle_lock = need;
+}
+
+void ProgressServiceBackend::SetTotalSize(u64 size) {
+    impl.total_bytes = size;
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::StartConnecting() {
+    impl.status = DeliveryCacheProgressImpl::Status::Connecting;
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::StartProcessingDataList() {
+    impl.status = DeliveryCacheProgressImpl::Status::ProcessingDataList;
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::StartDownloadingFile(std::string_view dir_name,
+                                                  std::string_view file_name, u64 file_size) {
+    impl.status = DeliveryCacheProgressImpl::Status::Downloading;
+    impl.current_downloaded_bytes = 0;
+    impl.current_total_bytes = file_size;
+    std::memcpy(impl.current_directory.data(), dir_name.data(),
+                std::min<u64>(dir_name.size(), 0x31ull));
+    std::memcpy(impl.current_file.data(), file_name.data(),
+                std::min<u64>(file_name.size(), 0x31ull));
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::UpdateFileProgress(u64 downloaded) {
+    impl.current_downloaded_bytes = downloaded;
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::FinishDownloadingFile() {
+    impl.total_downloaded_bytes += impl.current_total_bytes;
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::CommitDirectory(std::string_view dir_name) {
+    impl.status = DeliveryCacheProgressImpl::Status::Committing;
+    impl.current_file.fill(0);
+    impl.current_downloaded_bytes = 0;
+    impl.current_total_bytes = 0;
+    std::memcpy(impl.current_directory.data(), dir_name.data(),
+                std::min<u64>(dir_name.size(), 0x31ull));
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::FinishDownload(ResultCode result) {
+    impl.total_downloaded_bytes = impl.total_bytes;
+    impl.status = DeliveryCacheProgressImpl::Status::Done;
+    impl.result = result;
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::SignalUpdate() const {
+    if (need_hle_lock) {
+        std::lock_guard<std::recursive_mutex> lock(HLE::g_hle_lock);
+        event.writable->Signal();
+    } else {
+        event.writable->Signal();
+    }
+}
+
+Backend::Backend(DirectoryGetter getter) : dir_getter(std::move(getter)) {}
+
+Backend::~Backend() = default;
+
+NullBackend::NullBackend(const DirectoryGetter& getter) : Backend(std::move(getter)) {}
+
+NullBackend::~NullBackend() = default;
+
+bool NullBackend::Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, build_id={:016X}", title.title_id,
+              title.build_id);
+
+    progress.FinishDownload(RESULT_SUCCESS);
+    return true;
+}
+
+bool NullBackend::SynchronizeDirectory(TitleIDVersion title, std::string name,
+                                       ProgressServiceBackend& progress) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, build_id={:016X}, name={}", title.title_id,
+              title.build_id, name);
+
+    progress.FinishDownload(RESULT_SUCCESS);
+    return true;
+}
+
+bool NullBackend::Clear(u64 title_id) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}");
+
+    return true;
+}
+
+void NullBackend::SetPassphrase(u64 title_id, const Passphrase& passphrase) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, passphrase = {}", title_id,
+              Common::HexToString(passphrase));
+}
+
+std::optional<std::vector<u8>> NullBackend::GetLaunchParameter(TitleIDVersion title) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, build_id={:016X}", title.title_id,
+              title.build_id);
+    return std::nullopt;
+}
+
+} // namespace Service::BCAT

src/core/hle/service/bcat/backend/backend.h

@@ -0,0 +1,147 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <functional>
+#include <optional>
+#include "common/common_types.h"
+#include "core/file_sys/vfs_types.h"
+#include "core/hle/kernel/readable_event.h"
+#include "core/hle/kernel/writable_event.h"
+#include "core/hle/result.h"
+
+namespace Service::BCAT {
+
+struct DeliveryCacheProgressImpl;
+
+using DirectoryGetter = std::function<FileSys::VirtualDir(u64)>;
+using Passphrase = std::array<u8, 0x20>;
+
+struct TitleIDVersion {
+    u64 title_id;
+    u64 build_id;
+};
+
+using DirectoryName = std::array<char, 0x20>;
+using FileName = std::array<char, 0x20>;
+
+struct DeliveryCacheProgressImpl {
+    enum class Status : s32 {
+        None = 0x0,
+        Queued = 0x1,
+        Connecting = 0x2,
+        ProcessingDataList = 0x3,
+        Downloading = 0x4,
+        Committing = 0x5,
+        Done = 0x9,
+    };
+
+    Status status;
+    ResultCode result = RESULT_SUCCESS;
+    DirectoryName current_directory;
+    FileName current_file;
+    s64 current_downloaded_bytes; ///< Bytes downloaded on current file.
+    s64 current_total_bytes;      ///< Bytes total on current file.
+    s64 total_downloaded_bytes;   ///< Bytes downloaded on overall download.
+    s64 total_bytes;              ///< Bytes total on overall download.
+    INSERT_PADDING_BYTES(
+        0x198); ///< Appears to be unused in official code, possibly reserved for future use.
+};
+static_assert(sizeof(DeliveryCacheProgressImpl) == 0x200,
+              "DeliveryCacheProgressImpl has incorrect size.");
+
+// A class to manage the signalling to the game about BCAT download progress.
+// Some of this class is implemented in module.cpp to avoid exposing the implementation structure.
+class ProgressServiceBackend {
+    friend class IBcatService;
+
+public:
+    // Clients should call this with true if any of the functions are going to be called from a
+    // non-HLE thread and this class need to lock the hle mutex. (default is false)
+    void SetNeedHLELock(bool need);
+
+    // Sets the number of bytes total in the entire download.
+    void SetTotalSize(u64 size);
+
+    // Notifies the application that the backend has started connecting to the server.
+    void StartConnecting();
+    // Notifies the application that the backend has begun accumulating and processing metadata.
+    void StartProcessingDataList();
+
+    // Notifies the application that a file is starting to be downloaded.
+    void StartDownloadingFile(std::string_view dir_name, std::string_view file_name, u64 file_size);
+    // Updates the progress of the current file to the size passed.
+    void UpdateFileProgress(u64 downloaded);
+    // Notifies the application that the current file has completed download.
+    void FinishDownloadingFile();
+
+    // Notifies the application that all files in this directory have completed and are being
+    // finalized.
+    void CommitDirectory(std::string_view dir_name);
+
+    // Notifies the application that the operation completed with result code result.
+    void FinishDownload(ResultCode result);
+
+private:
+    explicit ProgressServiceBackend(std::string event_name);
+
+    Kernel::SharedPtr<Kernel::ReadableEvent> GetEvent();
+    DeliveryCacheProgressImpl& GetImpl();
+
+    void SignalUpdate() const;
+
+    DeliveryCacheProgressImpl impl;
+    Kernel::EventPair event;
+    bool need_hle_lock = false;
+};
+
+// A class representing an abstract backend for BCAT functionality.
+class Backend {
+public:
+    explicit Backend(DirectoryGetter getter);
+    virtual ~Backend();
+
+    // Called when the backend is needed to synchronize the data for the game with title ID and
+    // version in title. A ProgressServiceBackend object is provided to alert the application of
+    // status.
+    virtual bool Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) = 0;
+    // Very similar to Synchronize, but only for the directory provided. Backends should not alter
+    // the data for any other directories.
+    virtual bool SynchronizeDirectory(TitleIDVersion title, std::string name,
+                                      ProgressServiceBackend& progress) = 0;
+
+    // Removes all cached data associated with title id provided.
+    virtual bool Clear(u64 title_id) = 0;
+
+    // Sets the BCAT Passphrase to be used with the associated title ID.
+    virtual void SetPassphrase(u64 title_id, const Passphrase& passphrase) = 0;
+
+    // Gets the launch parameter used by AM associated with the title ID and version provided.
+    virtual std::optional<std::vector<u8>> GetLaunchParameter(TitleIDVersion title) = 0;
+
+protected:
+    DirectoryGetter dir_getter;
+};
+
+// A backend of BCAT that provides no operation.
+class NullBackend : public Backend {
+public:
+    explicit NullBackend(const DirectoryGetter& getter);
+    ~NullBackend() override;
+
+    bool Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) override;
+    bool SynchronizeDirectory(TitleIDVersion title, std::string name,
+                              ProgressServiceBackend& progress) override;
+
+    bool Clear(u64 title_id) override;
+
+    void SetPassphrase(u64 title_id, const Passphrase& passphrase) override;
+
+    std::optional<std::vector<u8>> GetLaunchParameter(TitleIDVersion title) override;
+};
+
+std::unique_ptr<Backend> CreateBackendFromSettings(DirectoryGetter getter);
+
+} // namespace Service::BCAT

src/core/hle/service/bcat/backend/boxcat.cpp

@@ -0,0 +1,503 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <fmt/ostream.h>
+#include <httplib.h>
+#include <json.hpp>
+#include <mbedtls/sha256.h>
+#include "common/hex_util.h"
+#include "common/logging/backend.h"
+#include "common/logging/log.h"
+#include "core/core.h"
+#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs_libzip.h"
+#include "core/file_sys/vfs_vector.h"
+#include "core/frontend/applets/error.h"
+#include "core/hle/service/am/applets/applets.h"
+#include "core/hle/service/bcat/backend/boxcat.h"
+#include "core/settings.h"
+
+namespace {
+
+// Prevents conflicts with windows macro called CreateFile
+FileSys::VirtualFile VfsCreateFileWrap(FileSys::VirtualDir dir, std::string_view name) {
+    return dir->CreateFile(name);
+}
+
+// Prevents conflicts with windows macro called DeleteFile
+bool VfsDeleteFileWrap(FileSys::VirtualDir dir, std::string_view name) {
+    return dir->DeleteFile(name);
+}
+
+} // Anonymous namespace
+
+namespace Service::BCAT {
+
+constexpr ResultCode ERROR_GENERAL_BCAT_FAILURE{ErrorModule::BCAT, 1};
+
+constexpr char BOXCAT_HOSTNAME[] = "api.yuzu-emu.org";
+
+// Formatted using fmt with arg[0] = hex title id
+constexpr char BOXCAT_PATHNAME_DATA[] = "/game-assets/{:016X}/boxcat";
+constexpr char BOXCAT_PATHNAME_LAUNCHPARAM[] = "/game-assets/{:016X}/launchparam";
+
+constexpr char BOXCAT_PATHNAME_EVENTS[] = "/game-assets/boxcat/events";
+
+constexpr char BOXCAT_API_VERSION[] = "1";
+constexpr char BOXCAT_CLIENT_TYPE[] = "yuzu";
+
+// HTTP status codes for Boxcat
+enum class ResponseStatus {
+    Ok = 200,               ///< Operation completed successfully.
+    BadClientVersion = 301, ///< The Boxcat-Client-Version doesn't match the server.
+    NoUpdate = 304,         ///< The digest provided would match the new data, no need to update.
+    NoMatchTitleId = 404,   ///< The title ID provided doesn't have a boxcat implementation.
+    NoMatchBuildId = 406,   ///< The build ID provided is blacklisted (potentially because of format
+                            ///< issues or whatnot) and has no data.
+};
+
+enum class DownloadResult {
+    Success = 0,
+    NoResponse,
+    GeneralWebError,
+    NoMatchTitleId,
+    NoMatchBuildId,
+    InvalidContentType,
+    GeneralFSError,
+    BadClientVersion,
+};
+
+constexpr std::array<const char*, 8> DOWNLOAD_RESULT_LOG_MESSAGES{
+    "Success",
+    "There was no response from the server.",
+    "There was a general web error code returned from the server.",
+    "The title ID of the current game doesn't have a boxcat implementation. If you believe an "
+    "implementation should be added, contact yuzu support.",
+    "The build ID of the current version of the game is marked as incompatible with the current "
+    "BCAT distribution. Try upgrading or downgrading your game version or contacting yuzu support.",
+    "The content type of the web response was invalid.",
+    "There was a general filesystem error while saving the zip file.",
+    "The server is either too new or too old to serve the request. Try using the latest version of "
+    "an official release of yuzu.",
+};
+
+std::ostream& operator<<(std::ostream& os, DownloadResult result) {
+    return os << DOWNLOAD_RESULT_LOG_MESSAGES.at(static_cast<std::size_t>(result));
+}
+
+constexpr u32 PORT = 443;
+constexpr u32 TIMEOUT_SECONDS = 30;
+constexpr u64 VFS_COPY_BLOCK_SIZE = 1ull << 24; // 4MB
+
+namespace {
+
+std::string GetBINFilePath(u64 title_id) {
+    return fmt::format("{}bcat/{:016X}/launchparam.bin",
+                       FileUtil::GetUserPath(FileUtil::UserPath::CacheDir), title_id);
+}
+
+std::string GetZIPFilePath(u64 title_id) {
+    return fmt::format("{}bcat/{:016X}/data.zip",
+                       FileUtil::GetUserPath(FileUtil::UserPath::CacheDir), title_id);
+}
+
+// If the error is something the user should know about (build ID mismatch, bad client version),
+// display an error.
+void HandleDownloadDisplayResult(DownloadResult res) {
+    if (res == DownloadResult::Success || res == DownloadResult::NoResponse ||
+        res == DownloadResult::GeneralWebError || res == DownloadResult::GeneralFSError ||
+        res == DownloadResult::NoMatchTitleId || res == DownloadResult::InvalidContentType) {
+        return;
+    }
+
+    const auto& frontend{Core::System::GetInstance().GetAppletManager().GetAppletFrontendSet()};
+    frontend.error->ShowCustomErrorText(
+        ResultCode(-1), "There was an error while attempting to use Boxcat.",
+        DOWNLOAD_RESULT_LOG_MESSAGES[static_cast<std::size_t>(res)], [] {});
+}
+
+bool VfsRawCopyProgress(FileSys::VirtualFile src, FileSys::VirtualFile dest,
+                        std::string_view dir_name, ProgressServiceBackend& progress,
+                        std::size_t block_size = 0x1000) {
+    if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable())
+        return false;
+    if (!dest->Resize(src->GetSize()))
+        return false;
+
+    progress.StartDownloadingFile(dir_name, src->GetName(), src->GetSize());
+
+    std::vector<u8> temp(std::min(block_size, src->GetSize()));
+    for (std::size_t i = 0; i < src->GetSize(); i += block_size) {
+        const auto read = std::min(block_size, src->GetSize() - i);
+
+        if (src->Read(temp.data(), read, i) != read) {
+            return false;
+        }
+
+        if (dest->Write(temp.data(), read, i) != read) {
+            return false;
+        }
+
+        progress.UpdateFileProgress(i);
+    }
+
+    progress.FinishDownloadingFile();
+
+    return true;
+}
+
+bool VfsRawCopyDProgressSingle(FileSys::VirtualDir src, FileSys::VirtualDir dest,
+                               ProgressServiceBackend& progress, std::size_t block_size = 0x1000) {
+    if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable())
+        return false;
+
+    for (const auto& file : src->GetFiles()) {
+        const auto out_file = VfsCreateFileWrap(dest, file->GetName());
+        if (!VfsRawCopyProgress(file, out_file, src->GetName(), progress, block_size)) {
+            return false;
+        }
+    }
+    progress.CommitDirectory(src->GetName());
+
+    return true;
+}
+
+bool VfsRawCopyDProgress(FileSys::VirtualDir src, FileSys::VirtualDir dest,
+                         ProgressServiceBackend& progress, std::size_t block_size = 0x1000) {
+    if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable())
+        return false;
+
+    for (const auto& dir : src->GetSubdirectories()) {
+        const auto out = dest->CreateSubdirectory(dir->GetName());
+        if (!VfsRawCopyDProgressSingle(dir, out, progress, block_size)) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+} // Anonymous namespace
+
+class Boxcat::Client {
+public:
+    Client(std::string path, u64 title_id, u64 build_id)
+        : path(std::move(path)), title_id(title_id), build_id(build_id) {}
+
+    DownloadResult DownloadDataZip() {
+        return DownloadInternal(fmt::format(BOXCAT_PATHNAME_DATA, title_id), TIMEOUT_SECONDS,
+                                "application/zip");
+    }
+
+    DownloadResult DownloadLaunchParam() {
+        return DownloadInternal(fmt::format(BOXCAT_PATHNAME_LAUNCHPARAM, title_id),
+                                TIMEOUT_SECONDS / 3, "application/octet-stream");
+    }
+
+private:
+    DownloadResult DownloadInternal(const std::string& resolved_path, u32 timeout_seconds,
+                                    const std::string& content_type_name) {
+        if (client == nullptr) {
+            client = std::make_unique<httplib::SSLClient>(BOXCAT_HOSTNAME, PORT, timeout_seconds);
+        }
+
+        httplib::Headers headers{
+            {std::string("Game-Assets-API-Version"), std::string(BOXCAT_API_VERSION)},
+            {std::string("Boxcat-Client-Type"), std::string(BOXCAT_CLIENT_TYPE)},
+            {std::string("Game-Build-Id"), fmt::format("{:016X}", build_id)},
+        };
+
+        if (FileUtil::Exists(path)) {
+            FileUtil::IOFile file{path, "rb"};
+            if (file.IsOpen()) {
+                std::vector<u8> bytes(file.GetSize());
+                file.ReadBytes(bytes.data(), bytes.size());
+                const auto digest = DigestFile(bytes);
+                headers.insert({std::string("If-None-Match"), Common::HexToString(digest, false)});
+            }
+        }
+
+        const auto response = client->Get(resolved_path.c_str(), headers);
+        if (response == nullptr)
+            return DownloadResult::NoResponse;
+
+        if (response->status == static_cast<int>(ResponseStatus::NoUpdate))
+            return DownloadResult::Success;
+        if (response->status == static_cast<int>(ResponseStatus::BadClientVersion))
+            return DownloadResult::BadClientVersion;
+        if (response->status == static_cast<int>(ResponseStatus::NoMatchTitleId))
+            return DownloadResult::NoMatchTitleId;
+        if (response->status == static_cast<int>(ResponseStatus::NoMatchBuildId))
+            return DownloadResult::NoMatchBuildId;
+        if (response->status != static_cast<int>(ResponseStatus::Ok))
+            return DownloadResult::GeneralWebError;
+
+        const auto content_type = response->headers.find("content-type");
+        if (content_type == response->headers.end() ||
+            content_type->second.find(content_type_name) == std::string::npos) {
+            return DownloadResult::InvalidContentType;
+        }
+
+        FileUtil::CreateFullPath(path);
+        FileUtil::IOFile file{path, "wb"};
+        if (!file.IsOpen())
+            return DownloadResult::GeneralFSError;
+        if (!file.Resize(response->body.size()))
+            return DownloadResult::GeneralFSError;
+        if (file.WriteBytes(response->body.data(), response->body.size()) != response->body.size())
+            return DownloadResult::GeneralFSError;
+
+        return DownloadResult::Success;
+    }
+
+    using Digest = std::array<u8, 0x20>;
+    static Digest DigestFile(std::vector<u8> bytes) {
+        Digest out{};
+        mbedtls_sha256(bytes.data(), bytes.size(), out.data(), 0);
+        return out;
+    }
+
+    std::unique_ptr<httplib::Client> client;
+    std::string path;
+    u64 title_id;
+    u64 build_id;
+};
+
+Boxcat::Boxcat(DirectoryGetter getter) : Backend(std::move(getter)) {}
+
+Boxcat::~Boxcat() = default;
+
+void SynchronizeInternal(DirectoryGetter dir_getter, TitleIDVersion title,
+                         ProgressServiceBackend& progress,
+                         std::optional<std::string> dir_name = {}) {
+    progress.SetNeedHLELock(true);
+
+    if (Settings::values.bcat_boxcat_local) {
+        LOG_INFO(Service_BCAT, "Boxcat using local data by override, skipping download.");
+        const auto dir = dir_getter(title.title_id);
+        if (dir)
+            progress.SetTotalSize(dir->GetSize());
+        progress.FinishDownload(RESULT_SUCCESS);
+        return;
+    }
+
+    const auto zip_path{GetZIPFilePath(title.title_id)};
+    Boxcat::Client client{zip_path, title.title_id, title.build_id};
+
+    progress.StartConnecting();
+
+    const auto res = client.DownloadDataZip();
+    if (res != DownloadResult::Success) {
+        LOG_ERROR(Service_BCAT, "Boxcat synchronization failed with error '{}'!", res);
+
+        if (res == DownloadResult::NoMatchBuildId || res == DownloadResult::NoMatchTitleId) {
+            FileUtil::Delete(zip_path);
+        }
+
+        HandleDownloadDisplayResult(res);
+        progress.FinishDownload(ERROR_GENERAL_BCAT_FAILURE);
+        return;
+    }
+
+    progress.StartProcessingDataList();
+
+    FileUtil::IOFile zip{zip_path, "rb"};
+    const auto size = zip.GetSize();
+    std::vector<u8> bytes(size);
+    if (!zip.IsOpen() || size == 0 || zip.ReadBytes(bytes.data(), bytes.size()) != bytes.size()) {
+        LOG_ERROR(Service_BCAT, "Boxcat failed to read ZIP file at path '{}'!", zip_path);
+        progress.FinishDownload(ERROR_GENERAL_BCAT_FAILURE);
+        return;
+    }
+
+    const auto extracted = FileSys::ExtractZIP(std::make_shared<FileSys::VectorVfsFile>(bytes));
+    if (extracted == nullptr) {
+        LOG_ERROR(Service_BCAT, "Boxcat failed to extract ZIP file!");
+        progress.FinishDownload(ERROR_GENERAL_BCAT_FAILURE);
+        return;
+    }
+
+    if (dir_name == std::nullopt) {
+        progress.SetTotalSize(extracted->GetSize());
+
+        const auto target_dir = dir_getter(title.title_id);
+        if (target_dir == nullptr || !VfsRawCopyDProgress(extracted, target_dir, progress)) {
+            LOG_ERROR(Service_BCAT, "Boxcat failed to copy extracted ZIP to target directory!");
+            progress.FinishDownload(ERROR_GENERAL_BCAT_FAILURE);
+            return;
+        }
+    } else {
+        const auto target_dir = dir_getter(title.title_id);
+        if (target_dir == nullptr) {
+            LOG_ERROR(Service_BCAT, "Boxcat failed to get directory for title ID!");
+            progress.FinishDownload(ERROR_GENERAL_BCAT_FAILURE);
+            return;
+        }
+
+        const auto target_sub = target_dir->GetSubdirectory(*dir_name);
+        const auto source_sub = extracted->GetSubdirectory(*dir_name);
+
+        progress.SetTotalSize(source_sub->GetSize());
+
+        std::vector<std::string> filenames;
+        {
+            const auto files = target_sub->GetFiles();
+            std::transform(files.begin(), files.end(), std::back_inserter(filenames),
+                           [](const auto& vfile) { return vfile->GetName(); });
+        }
+
+        for (const auto& filename : filenames) {
+            VfsDeleteFileWrap(target_sub, filename);
+        }
+
+        if (target_sub == nullptr || source_sub == nullptr ||
+            !VfsRawCopyDProgressSingle(source_sub, target_sub, progress)) {
+            LOG_ERROR(Service_BCAT, "Boxcat failed to copy extracted ZIP to target directory!");
+            progress.FinishDownload(ERROR_GENERAL_BCAT_FAILURE);
+            return;
+        }
+    }
+
+    progress.FinishDownload(RESULT_SUCCESS);
+}
+
+bool Boxcat::Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) {
+    is_syncing.exchange(true);
+    std::thread([this, title, &progress] { SynchronizeInternal(dir_getter, title, progress); })
+        .detach();
+    return true;
+}
+
+bool Boxcat::SynchronizeDirectory(TitleIDVersion title, std::string name,
+                                  ProgressServiceBackend& progress) {
+    is_syncing.exchange(true);
+    std::thread(
+        [this, title, name, &progress] { SynchronizeInternal(dir_getter, title, progress, name); })
+        .detach();
+    return true;
+}
+
+bool Boxcat::Clear(u64 title_id) {
+    if (Settings::values.bcat_boxcat_local) {
+        LOG_INFO(Service_BCAT, "Boxcat using local data by override, skipping clear.");
+        return true;
+    }
+
+    const auto dir = dir_getter(title_id);
+
+    std::vector<std::string> dirnames;
+
+    for (const auto& subdir : dir->GetSubdirectories())
+        dirnames.push_back(subdir->GetName());
+
+    for (const auto& subdir : dirnames) {
+        if (!dir->DeleteSubdirectoryRecursive(subdir))
+            return false;
+    }
+
+    return true;
+}
+
+void Boxcat::SetPassphrase(u64 title_id, const Passphrase& passphrase) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, passphrase={}", title_id,
+              Common::HexToString(passphrase));
+}
+
+std::optional<std::vector<u8>> Boxcat::GetLaunchParameter(TitleIDVersion title) {
+    const auto path{GetBINFilePath(title.title_id)};
+
+    if (Settings::values.bcat_boxcat_local) {
+        LOG_INFO(Service_BCAT, "Boxcat using local data by override, skipping download.");
+    } else {
+        Boxcat::Client client{path, title.title_id, title.build_id};
+
+        const auto res = client.DownloadLaunchParam();
+        if (res != DownloadResult::Success) {
+            LOG_ERROR(Service_BCAT, "Boxcat synchronization failed with error '{}'!", res);
+
+            if (res == DownloadResult::NoMatchBuildId || res == DownloadResult::NoMatchTitleId) {
+                FileUtil::Delete(path);
+            }
+
+            HandleDownloadDisplayResult(res);
+            return std::nullopt;
+        }
+    }
+
+    FileUtil::IOFile bin{path, "rb"};
+    const auto size = bin.GetSize();
+    std::vector<u8> bytes(size);
+    if (!bin.IsOpen() || size == 0 || bin.ReadBytes(bytes.data(), bytes.size()) != bytes.size()) {
+        LOG_ERROR(Service_BCAT, "Boxcat failed to read launch parameter binary at path '{}'!",
+                  path);
+        return std::nullopt;
+    }
+
+    return bytes;
+}
+
+Boxcat::StatusResult Boxcat::GetStatus(std::optional<std::string>& global,
+                                       std::map<std::string, EventStatus>& games) {
+    httplib::SSLClient client{BOXCAT_HOSTNAME, static_cast<int>(PORT),
+                              static_cast<int>(TIMEOUT_SECONDS)};
+
+    httplib::Headers headers{
+        {std::string("Game-Assets-API-Version"), std::string(BOXCAT_API_VERSION)},
+        {std::string("Boxcat-Client-Type"), std::string(BOXCAT_CLIENT_TYPE)},
+    };
+
+    const auto response = client.Get(BOXCAT_PATHNAME_EVENTS, headers);
+    if (response == nullptr)
+        return StatusResult::Offline;
+
+    if (response->status == static_cast<int>(ResponseStatus::BadClientVersion))
+        return StatusResult::BadClientVersion;
+
+    try {
+        nlohmann::json json = nlohmann::json::parse(response->body);
+
+        if (!json["online"].get<bool>())
+            return StatusResult::Offline;
+
+        if (json["global"].is_null())
+            global = std::nullopt;
+        else
+            global = json["global"].get<std::string>();
+
+        if (json["games"].is_array()) {
+            for (const auto object : json["games"]) {
+                if (object.is_object() && object.find("name") != object.end()) {
+                    EventStatus detail{};
+                    if (object["header"].is_string()) {
+                        detail.header = object["header"].get<std::string>();
+                    } else {
+                        detail.header = std::nullopt;
+                    }
+
+                    if (object["footer"].is_string()) {
+                        detail.footer = object["footer"].get<std::string>();
+                    } else {
+                        detail.footer = std::nullopt;
+                    }
+
+                    if (object["events"].is_array()) {
+                        for (const auto& event : object["events"]) {
+                            if (!event.is_string())
+                                continue;
+                            detail.events.push_back(event.get<std::string>());
+                        }
+                    }
+
+                    games.insert_or_assign(object["name"], std::move(detail));
+                }
+            }
+        }
+
+        return StatusResult::Success;
+    } catch (const nlohmann::json::parse_error& e) {
+        return StatusResult::ParseError;
+    }
+}
+
+} // namespace Service::BCAT

src/core/hle/service/bcat/backend/boxcat.h

@@ -0,0 +1,58 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <atomic>
+#include <map>
+#include <optional>
+#include "core/hle/service/bcat/backend/backend.h"
+
+namespace Service::BCAT {
+
+struct EventStatus {
+    std::optional<std::string> header;
+    std::optional<std::string> footer;
+    std::vector<std::string> events;
+};
+
+/// Boxcat is yuzu's custom backend implementation of Nintendo's BCAT service. It is free to use and
+/// doesn't require a switch or nintendo account. The content is controlled by the yuzu team.
+class Boxcat final : public Backend {
+    friend void SynchronizeInternal(DirectoryGetter dir_getter, TitleIDVersion title,
+                                    ProgressServiceBackend& progress,
+                                    std::optional<std::string> dir_name);
+
+public:
+    explicit Boxcat(DirectoryGetter getter);
+    ~Boxcat() override;
+
+    bool Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) override;
+    bool SynchronizeDirectory(TitleIDVersion title, std::string name,
+                              ProgressServiceBackend& progress) override;
+
+    bool Clear(u64 title_id) override;
+
+    void SetPassphrase(u64 title_id, const Passphrase& passphrase) override;
+
+    std::optional<std::vector<u8>> GetLaunchParameter(TitleIDVersion title) override;
+
+    enum class StatusResult {
+        Success,
+        Offline,
+        ParseError,
+        BadClientVersion,
+    };
+
+    static StatusResult GetStatus(std::optional<std::string>& global,
+                                  std::map<std::string, EventStatus>& games);
+
+private:
+    std::atomic_bool is_syncing{false};
+
+    class Client;
+    std::unique_ptr<Client> client;
+};
+
+} // namespace Service::BCAT

src/core/hle/service/bcat/bcat.cpp

@@ -6,11 +6,15 @@
 
 namespace Service::BCAT {
 
-BCAT::BCAT(std::shared_ptr<Module> module, const char* name)
-    : Module::Interface(std::move(module), name) {
+BCAT::BCAT(std::shared_ptr<Module> module, FileSystem::FileSystemController& fsc, const char* name)
+    : Module::Interface(std::move(module), fsc, name) {
+    // clang-format off
     static const FunctionInfo functions[] = {
         {0, &BCAT::CreateBcatService, "CreateBcatService"},
+        {1, &BCAT::CreateDeliveryCacheStorageService, "CreateDeliveryCacheStorageService"},
+        {2, &BCAT::CreateDeliveryCacheStorageServiceWithApplicationId, "CreateDeliveryCacheStorageServiceWithApplicationId"},
     };
+    // clang-format on
     RegisterHandlers(functions);
 }
 

src/core/hle/service/bcat/bcat.h

@@ -10,7 +10,8 @@ namespace Service::BCAT {
 
 class BCAT final : public Module::Interface {
 public:
-    explicit BCAT(std::shared_ptr<Module> module, const char* name);
+    explicit BCAT(std::shared_ptr<Module> module, FileSystem::FileSystemController& fsc,
+                  const char* name);
     ~BCAT() override;
 };
 

src/core/hle/service/bcat/module.cpp

@@ -2,34 +2,254 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <cctype>
+#include <mbedtls/md5.h>
+#include "backend/boxcat.h"
+#include "common/hex_util.h"
 #include "common/logging/log.h"
+#include "common/string_util.h"
+#include "core/file_sys/vfs.h"
 #include "core/hle/ipc_helpers.h"
+#include "core/hle/kernel/process.h"
+#include "core/hle/kernel/readable_event.h"
+#include "core/hle/kernel/writable_event.h"
+#include "core/hle/service/bcat/backend/backend.h"
 #include "core/hle/service/bcat/bcat.h"
 #include "core/hle/service/bcat/module.h"
+#include "core/hle/service/filesystem/filesystem.h"
+#include "core/settings.h"
 
 namespace Service::BCAT {
 
+constexpr ResultCode ERROR_INVALID_ARGUMENT{ErrorModule::BCAT, 1};
+constexpr ResultCode ERROR_FAILED_OPEN_ENTITY{ErrorModule::BCAT, 2};
+constexpr ResultCode ERROR_ENTITY_ALREADY_OPEN{ErrorModule::BCAT, 6};
+constexpr ResultCode ERROR_NO_OPEN_ENTITY{ErrorModule::BCAT, 7};
+
+// The command to clear the delivery cache just calls fs IFileSystem DeleteFile on all of the files
+// and if any of them have a non-zero result it just forwards that result. This is the FS error code
+// for permission denied, which is the closest approximation of this scenario.
+constexpr ResultCode ERROR_FAILED_CLEAR_CACHE{ErrorModule::FS, 6400};
+
+using BCATDigest = std::array<u8, 0x10>;
+
+namespace {
+
+u64 GetCurrentBuildID() {
+    const auto& id = Core::System::GetInstance().GetCurrentProcessBuildID();
+    u64 out{};
+    std::memcpy(&out, id.data(), sizeof(u64));
+    return out;
+}
+
+// The digest is only used to determine if a file is unique compared to others of the same name.
+// Since the algorithm isn't ever checked in game, MD5 is safe.
+BCATDigest DigestFile(const FileSys::VirtualFile& file) {
+    BCATDigest out{};
+    const auto bytes = file->ReadAllBytes();
+    mbedtls_md5(bytes.data(), bytes.size(), out.data());
+    return out;
+}
+
+// For a name to be valid it must be non-empty, must have a null terminating character as the final
+// char, can only contain numbers, letters, underscores and a hyphen if directory and a period if
+// file.
+bool VerifyNameValidInternal(Kernel::HLERequestContext& ctx, std::array<char, 0x20> name,
+                             char match_char) {
+    const auto null_chars = std::count(name.begin(), name.end(), 0);
+    const auto bad_chars = std::count_if(name.begin(), name.end(), [match_char](char c) {
+        return !std::isalnum(static_cast<u8>(c)) && c != '_' && c != match_char && c != '\0';
+    });
+    if (null_chars == 0x20 || null_chars == 0 || bad_chars != 0 || name[0x1F] != '\0') {
+        LOG_ERROR(Service_BCAT, "Name passed was invalid!");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ERROR_INVALID_ARGUMENT);
+        return false;
+    }
+
+    return true;
+}
+
+bool VerifyNameValidDir(Kernel::HLERequestContext& ctx, DirectoryName name) {
+    return VerifyNameValidInternal(ctx, name, '-');
+}
+
+bool VerifyNameValidFile(Kernel::HLERequestContext& ctx, FileName name) {
+    return VerifyNameValidInternal(ctx, name, '.');
+}
+
+} // Anonymous namespace
+
+struct DeliveryCacheDirectoryEntry {
+    FileName name;
+    u64 size;
+    BCATDigest digest;
+};
+
+class IDeliveryCacheProgressService final : public ServiceFramework<IDeliveryCacheProgressService> {
+public:
+    IDeliveryCacheProgressService(Kernel::SharedPtr<Kernel::ReadableEvent> event,
+                                  const DeliveryCacheProgressImpl& impl)
+        : ServiceFramework{"IDeliveryCacheProgressService"}, event(std::move(event)), impl(impl) {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IDeliveryCacheProgressService::GetEvent, "GetEvent"},
+            {1, &IDeliveryCacheProgressService::GetImpl, "GetImpl"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    void GetEvent(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushCopyObjects(event);
+    }
+
+    void GetImpl(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        ctx.WriteBuffer(&impl, sizeof(DeliveryCacheProgressImpl));
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    Kernel::SharedPtr<Kernel::ReadableEvent> event;
+    const DeliveryCacheProgressImpl& impl;
+};
+
 class IBcatService final : public ServiceFramework<IBcatService> {
 public:
-    IBcatService() : ServiceFramework("IBcatService") {
+    IBcatService(Backend& backend) : ServiceFramework("IBcatService"), backend(backend) {
+        // clang-format off
         static const FunctionInfo functions[] = {
-            {10100, nullptr, "RequestSyncDeliveryCache"},
-            {10101, nullptr, "RequestSyncDeliveryCacheWithDirectoryName"},
+            {10100, &IBcatService::RequestSyncDeliveryCache, "RequestSyncDeliveryCache"},
+            {10101, &IBcatService::RequestSyncDeliveryCacheWithDirectoryName, "RequestSyncDeliveryCacheWithDirectoryName"},
             {10200, nullptr, "CancelSyncDeliveryCacheRequest"},
             {20100, nullptr, "RequestSyncDeliveryCacheWithApplicationId"},
             {20101, nullptr, "RequestSyncDeliveryCacheWithApplicationIdAndDirectoryName"},
-            {30100, nullptr, "SetPassphrase"},
+            {30100, &IBcatService::SetPassphrase, "SetPassphrase"},
             {30200, nullptr, "RegisterBackgroundDeliveryTask"},
             {30201, nullptr, "UnregisterBackgroundDeliveryTask"},
             {30202, nullptr, "BlockDeliveryTask"},
             {30203, nullptr, "UnblockDeliveryTask"},
             {90100, nullptr, "EnumerateBackgroundDeliveryTask"},
             {90200, nullptr, "GetDeliveryList"},
-            {90201, nullptr, "ClearDeliveryCacheStorage"},
+            {90201, &IBcatService::ClearDeliveryCacheStorage, "ClearDeliveryCacheStorage"},
             {90300, nullptr, "GetPushNotificationLog"},
         };
+        // clang-format on
         RegisterHandlers(functions);
     }
+
+private:
+    enum class SyncType {
+        Normal,
+        Directory,
+        Count,
+    };
+
+    std::shared_ptr<IDeliveryCacheProgressService> CreateProgressService(SyncType type) {
+        auto& backend{progress.at(static_cast<std::size_t>(type))};
+        return std::make_shared<IDeliveryCacheProgressService>(backend.GetEvent(),
+                                                               backend.GetImpl());
+    }
+
+    void RequestSyncDeliveryCache(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        backend.Synchronize({Core::CurrentProcess()->GetTitleID(), GetCurrentBuildID()},
+                            progress.at(static_cast<std::size_t>(SyncType::Normal)));
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface(CreateProgressService(SyncType::Normal));
+    }
+
+    void RequestSyncDeliveryCacheWithDirectoryName(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto name_raw = rp.PopRaw<DirectoryName>();
+        const auto name =
+            Common::StringFromFixedZeroTerminatedBuffer(name_raw.data(), name_raw.size());
+
+        LOG_DEBUG(Service_BCAT, "called, name={}", name);
+
+        backend.SynchronizeDirectory({Core::CurrentProcess()->GetTitleID(), GetCurrentBuildID()},
+                                     name,
+                                     progress.at(static_cast<std::size_t>(SyncType::Directory)));
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface(CreateProgressService(SyncType::Directory));
+    }
+
+    void SetPassphrase(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto title_id = rp.PopRaw<u64>();
+
+        const auto passphrase_raw = ctx.ReadBuffer();
+
+        LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, passphrase={}", title_id,
+                  Common::HexToString(passphrase_raw));
+
+        if (title_id == 0) {
+            LOG_ERROR(Service_BCAT, "Invalid title ID!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_INVALID_ARGUMENT);
+        }
+
+        if (passphrase_raw.size() > 0x40) {
+            LOG_ERROR(Service_BCAT, "Passphrase too large!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_INVALID_ARGUMENT);
+            return;
+        }
+
+        Passphrase passphrase{};
+        std::memcpy(passphrase.data(), passphrase_raw.data(),
+                    std::min(passphrase.size(), passphrase_raw.size()));
+
+        backend.SetPassphrase(title_id, passphrase);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void ClearDeliveryCacheStorage(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto title_id = rp.PopRaw<u64>();
+
+        LOG_DEBUG(Service_BCAT, "called, title_id={:016X}", title_id);
+
+        if (title_id == 0) {
+            LOG_ERROR(Service_BCAT, "Invalid title ID!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_INVALID_ARGUMENT);
+            return;
+        }
+
+        if (!backend.Clear(title_id)) {
+            LOG_ERROR(Service_BCAT, "Could not clear the directory successfully!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_FAILED_CLEAR_CACHE);
+            return;
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    Backend& backend;
+
+    std::array<ProgressServiceBackend, static_cast<std::size_t>(SyncType::Count)> progress{
+        ProgressServiceBackend{"Normal"},
+        ProgressServiceBackend{"Directory"},
+    };
 };
 
 void Module::Interface::CreateBcatService(Kernel::HLERequestContext& ctx) {
@@ -37,20 +257,331 @@ void Module::Interface::CreateBcatService(Kernel::HLERequestContext& ctx) {
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<IBcatService>();
+    rb.PushIpcInterface<IBcatService>(*backend);
 }
 
-Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)
-    : ServiceFramework(name), module(std::move(module)) {}
+class IDeliveryCacheFileService final : public ServiceFramework<IDeliveryCacheFileService> {
+public:
+    IDeliveryCacheFileService(FileSys::VirtualDir root_)
+        : ServiceFramework{"IDeliveryCacheFileService"}, root(std::move(root_)) {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IDeliveryCacheFileService::Open, "Open"},
+            {1, &IDeliveryCacheFileService::Read, "Read"},
+            {2, &IDeliveryCacheFileService::GetSize, "GetSize"},
+            {3, &IDeliveryCacheFileService::GetDigest, "GetDigest"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    void Open(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto dir_name_raw = rp.PopRaw<DirectoryName>();
+        const auto file_name_raw = rp.PopRaw<FileName>();
+
+        const auto dir_name =
+            Common::StringFromFixedZeroTerminatedBuffer(dir_name_raw.data(), dir_name_raw.size());
+        const auto file_name =
+            Common::StringFromFixedZeroTerminatedBuffer(file_name_raw.data(), file_name_raw.size());
+
+        LOG_DEBUG(Service_BCAT, "called, dir_name={}, file_name={}", dir_name, file_name);
+
+        if (!VerifyNameValidDir(ctx, dir_name_raw) || !VerifyNameValidFile(ctx, file_name_raw))
+            return;
+
+        if (current_file != nullptr) {
+            LOG_ERROR(Service_BCAT, "A file has already been opened on this interface!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_ENTITY_ALREADY_OPEN);
+            return;
+        }
+
+        const auto dir = root->GetSubdirectory(dir_name);
+
+        if (dir == nullptr) {
+            LOG_ERROR(Service_BCAT, "The directory of name={} couldn't be opened!", dir_name);
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_FAILED_OPEN_ENTITY);
+            return;
+        }
+
+        current_file = dir->GetFile(file_name);
+
+        if (current_file == nullptr) {
+            LOG_ERROR(Service_BCAT, "The file of name={} couldn't be opened!", file_name);
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_FAILED_OPEN_ENTITY);
+            return;
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void Read(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto offset{rp.PopRaw<u64>()};
+
+        auto size = ctx.GetWriteBufferSize();
+
+        LOG_DEBUG(Service_BCAT, "called, offset={:016X}, size={:016X}", offset, size);
+
+        if (current_file == nullptr) {
+            LOG_ERROR(Service_BCAT, "There is no file currently open!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_NO_OPEN_ENTITY);
+        }
+
+        size = std::min<u64>(current_file->GetSize() - offset, size);
+        const auto buffer = current_file->ReadBytes(size, offset);
+        ctx.WriteBuffer(buffer);
+
+        IPC::ResponseBuilder rb{ctx, 4};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u64>(buffer.size());
+    }
+
+    void GetSize(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        if (current_file == nullptr) {
+            LOG_ERROR(Service_BCAT, "There is no file currently open!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_NO_OPEN_ENTITY);
+        }
+
+        IPC::ResponseBuilder rb{ctx, 4};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u64>(current_file->GetSize());
+    }
+
+    void GetDigest(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        if (current_file == nullptr) {
+            LOG_ERROR(Service_BCAT, "There is no file currently open!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_NO_OPEN_ENTITY);
+        }
+
+        IPC::ResponseBuilder rb{ctx, 6};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushRaw(DigestFile(current_file));
+    }
+
+    FileSys::VirtualDir root;
+    FileSys::VirtualFile current_file;
+};
+
+class IDeliveryCacheDirectoryService final
+    : public ServiceFramework<IDeliveryCacheDirectoryService> {
+public:
+    IDeliveryCacheDirectoryService(FileSys::VirtualDir root_)
+        : ServiceFramework{"IDeliveryCacheDirectoryService"}, root(std::move(root_)) {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IDeliveryCacheDirectoryService::Open, "Open"},
+            {1, &IDeliveryCacheDirectoryService::Read, "Read"},
+            {2, &IDeliveryCacheDirectoryService::GetCount, "GetCount"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    void Open(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto name_raw = rp.PopRaw<DirectoryName>();
+        const auto name =
+            Common::StringFromFixedZeroTerminatedBuffer(name_raw.data(), name_raw.size());
+
+        LOG_DEBUG(Service_BCAT, "called, name={}", name);
+
+        if (!VerifyNameValidDir(ctx, name_raw))
+            return;
+
+        if (current_dir != nullptr) {
+            LOG_ERROR(Service_BCAT, "A file has already been opened on this interface!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_ENTITY_ALREADY_OPEN);
+            return;
+        }
+
+        current_dir = root->GetSubdirectory(name);
+
+        if (current_dir == nullptr) {
+            LOG_ERROR(Service_BCAT, "Failed to open the directory name={}!", name);
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_FAILED_OPEN_ENTITY);
+            return;
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void Read(Kernel::HLERequestContext& ctx) {
+        auto write_size = ctx.GetWriteBufferSize() / sizeof(DeliveryCacheDirectoryEntry);
+
+        LOG_DEBUG(Service_BCAT, "called, write_size={:016X}", write_size);
+
+        if (current_dir == nullptr) {
+            LOG_ERROR(Service_BCAT, "There is no open directory!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_NO_OPEN_ENTITY);
+            return;
+        }
+
+        const auto files = current_dir->GetFiles();
+        write_size = std::min<u64>(write_size, files.size());
+        std::vector<DeliveryCacheDirectoryEntry> entries(write_size);
+        std::transform(
+            files.begin(), files.begin() + write_size, entries.begin(), [](const auto& file) {
+                FileName name{};
+                std::memcpy(name.data(), file->GetName().data(),
+                            std::min(file->GetName().size(), name.size()));
+                return DeliveryCacheDirectoryEntry{name, file->GetSize(), DigestFile(file)};
+            });
+
+        ctx.WriteBuffer(entries);
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u32>(write_size * sizeof(DeliveryCacheDirectoryEntry));
+    }
+
+    void GetCount(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        if (current_dir == nullptr) {
+            LOG_ERROR(Service_BCAT, "There is no open directory!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_NO_OPEN_ENTITY);
+            return;
+        }
+
+        const auto files = current_dir->GetFiles();
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u32>(files.size());
+    }
+
+    FileSys::VirtualDir root;
+    FileSys::VirtualDir current_dir;
+};
+
+class IDeliveryCacheStorageService final : public ServiceFramework<IDeliveryCacheStorageService> {
+public:
+    IDeliveryCacheStorageService(FileSys::VirtualDir root_)
+        : ServiceFramework{"IDeliveryCacheStorageService"}, root(std::move(root_)) {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IDeliveryCacheStorageService::CreateFileService, "CreateFileService"},
+            {1, &IDeliveryCacheStorageService::CreateDirectoryService, "CreateDirectoryService"},
+            {10, &IDeliveryCacheStorageService::EnumerateDeliveryCacheDirectory, "EnumerateDeliveryCacheDirectory"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+
+        for (const auto& subdir : root->GetSubdirectories()) {
+            DirectoryName name{};
+            std::memcpy(name.data(), subdir->GetName().data(),
+                        std::min(sizeof(DirectoryName) - 1, subdir->GetName().size()));
+            entries.push_back(name);
+        }
+    }
+
+private:
+    void CreateFileService(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface<IDeliveryCacheFileService>(root);
+    }
+
+    void CreateDirectoryService(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface<IDeliveryCacheDirectoryService>(root);
+    }
+
+    void EnumerateDeliveryCacheDirectory(Kernel::HLERequestContext& ctx) {
+        auto size = ctx.GetWriteBufferSize() / sizeof(DirectoryName);
+
+        LOG_DEBUG(Service_BCAT, "called, size={:016X}", size);
+
+        size = std::min<u64>(size, entries.size() - next_read_index);
+        ctx.WriteBuffer(entries.data() + next_read_index, size * sizeof(DirectoryName));
+        next_read_index += size;
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u32>(size);
+    }
+
+    FileSys::VirtualDir root;
+    std::vector<DirectoryName> entries;
+    u64 next_read_index = 0;
+};
+
+void Module::Interface::CreateDeliveryCacheStorageService(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_BCAT, "called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface<IDeliveryCacheStorageService>(
+        fsc.GetBCATDirectory(Core::CurrentProcess()->GetTitleID()));
+}
+
+void Module::Interface::CreateDeliveryCacheStorageServiceWithApplicationId(
+    Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto title_id = rp.PopRaw<u64>();
+
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}", title_id);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface<IDeliveryCacheStorageService>(fsc.GetBCATDirectory(title_id));
+}
+
+std::unique_ptr<Backend> CreateBackendFromSettings(DirectoryGetter getter) {
+    const auto backend = Settings::values.bcat_backend;
+
+#ifdef YUZU_ENABLE_BOXCAT
+    if (backend == "boxcat")
+        return std::make_unique<Boxcat>(std::move(getter));
+#endif
+
+    return std::make_unique<NullBackend>(std::move(getter));
+}
+
+Module::Interface::Interface(std::shared_ptr<Module> module, FileSystem::FileSystemController& fsc,
+                             const char* name)
+    : ServiceFramework(name), module(std::move(module)), fsc(fsc),
+      backend(CreateBackendFromSettings([&fsc](u64 tid) { return fsc.GetBCATDirectory(tid); })) {}
 
 Module::Interface::~Interface() = default;
 
-void InstallInterfaces(SM::ServiceManager& service_manager) {
+void InstallInterfaces(Core::System& system) {
     auto module = std::make_shared<Module>();
-    std::make_shared<BCAT>(module, "bcat:a")->InstallAsService(service_manager);
-    std::make_shared<BCAT>(module, "bcat:m")->InstallAsService(service_manager);
-    std::make_shared<BCAT>(module, "bcat:u")->InstallAsService(service_manager);
-    std::make_shared<BCAT>(module, "bcat:s")->InstallAsService(service_manager);
+    std::make_shared<BCAT>(module, system.GetFileSystemController(), "bcat:a")
+        ->InstallAsService(system.ServiceManager());
+    std::make_shared<BCAT>(module, system.GetFileSystemController(), "bcat:m")
+        ->InstallAsService(system.ServiceManager());
+    std::make_shared<BCAT>(module, system.GetFileSystemController(), "bcat:u")
+        ->InstallAsService(system.ServiceManager());
+    std::make_shared<BCAT>(module, system.GetFileSystemController(), "bcat:s")
+        ->InstallAsService(system.ServiceManager());
 }
 
 } // namespace Service::BCAT

src/core/hle/service/bcat/module.h

@@ -6,23 +6,39 @@
 
 #include "core/hle/service/service.h"
 
-namespace Service::BCAT {
+namespace Service {
+
+namespace FileSystem {
+class FileSystemController;
+} // namespace FileSystem
+
+namespace BCAT {
+
+class Backend;
 
 class Module final {
 public:
     class Interface : public ServiceFramework<Interface> {
     public:
-        explicit Interface(std::shared_ptr<Module> module, const char* name);
+        explicit Interface(std::shared_ptr<Module> module, FileSystem::FileSystemController& fsc,
+                           const char* name);
         ~Interface() override;
 
         void CreateBcatService(Kernel::HLERequestContext& ctx);
+        void CreateDeliveryCacheStorageService(Kernel::HLERequestContext& ctx);
+        void CreateDeliveryCacheStorageServiceWithApplicationId(Kernel::HLERequestContext& ctx);
 
     protected:
+        FileSystem::FileSystemController& fsc;
+
         std::shared_ptr<Module> module;
+        std::unique_ptr<Backend> backend;
     };
 };
 
 /// Registers all BCAT services with the specified service manager.
-void InstallInterfaces(SM::ServiceManager& service_manager);
+void InstallInterfaces(Core::System& system);
 
-} // namespace Service::BCAT
+} // namespace BCAT
+
+} // namespace Service

src/core/hle/service/btdrv/btdrv.cpp

@@ -16,7 +16,7 @@ namespace Service::BtDrv {
 
 class Bt final : public ServiceFramework<Bt> {
 public:
-    explicit Bt() : ServiceFramework{"bt"} {
+    explicit Bt(Core::System& system) : ServiceFramework{"bt"} {
         // clang-format off
         static const FunctionInfo functions[] = {
             {0, nullptr, "LeClientReadCharacteristic"},
@@ -33,7 +33,7 @@ public:
         // clang-format on
         RegisterHandlers(functions);
 
-        auto& kernel = Core::System::GetInstance().Kernel();
+        auto& kernel = system.Kernel();
         register_event = Kernel::WritableEvent::CreateEventPair(
             kernel, Kernel::ResetType::Automatic, "BT:RegisterEvent");
     }
@@ -163,9 +163,9 @@ public:
     }
 };
 
-void InstallInterfaces(SM::ServiceManager& sm) {
+void InstallInterfaces(SM::ServiceManager& sm, Core::System& system) {
     std::make_shared<BtDrv>()->InstallAsService(sm);
-    std::make_shared<Bt>()->InstallAsService(sm);
+    std::make_shared<Bt>(system)->InstallAsService(sm);
 }
 
 } // namespace Service::BtDrv

src/core/hle/service/btdrv/btdrv.h

@@ -8,9 +8,13 @@ namespace Service::SM {
 class ServiceManager;
 }
 
+namespace Core {
+class System;
+}
+
 namespace Service::BtDrv {
 
 /// Registers all BtDrv services with the specified service manager.
-void InstallInterfaces(SM::ServiceManager& sm);
+void InstallInterfaces(SM::ServiceManager& sm, Core::System& system);
 
 } // namespace Service::BtDrv

src/core/hle/service/btm/btm.cpp

@@ -17,7 +17,7 @@ namespace Service::BTM {
 
 class IBtmUserCore final : public ServiceFramework<IBtmUserCore> {
 public:
-    explicit IBtmUserCore() : ServiceFramework{"IBtmUserCore"} {
+    explicit IBtmUserCore(Core::System& system) : ServiceFramework{"IBtmUserCore"} {
         // clang-format off
         static const FunctionInfo functions[] = {
             {0, &IBtmUserCore::AcquireBleScanEvent, "AcquireBleScanEvent"},
@@ -56,7 +56,7 @@ public:
         // clang-format on
         RegisterHandlers(functions);
 
-        auto& kernel = Core::System::GetInstance().Kernel();
+        auto& kernel = system.Kernel();
         scan_event = Kernel::WritableEvent::CreateEventPair(kernel, Kernel::ResetType::Automatic,
                                                             "IBtmUserCore:ScanEvent");
         connection_event = Kernel::WritableEvent::CreateEventPair(
@@ -108,7 +108,7 @@ private:
 
 class BTM_USR final : public ServiceFramework<BTM_USR> {
 public:
-    explicit BTM_USR() : ServiceFramework{"btm:u"} {
+    explicit BTM_USR(Core::System& system) : ServiceFramework{"btm:u"}, system(system) {
         // clang-format off
         static const FunctionInfo functions[] = {
             {0, &BTM_USR::GetCore, "GetCore"},
@@ -123,8 +123,10 @@ private:
 
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
-        rb.PushIpcInterface<IBtmUserCore>();
+        rb.PushIpcInterface<IBtmUserCore>(system);
     }
+
+    Core::System& system;
 };
 
 class BTM final : public ServiceFramework<BTM> {
@@ -268,11 +270,11 @@ private:
     }
 };
 
-void InstallInterfaces(SM::ServiceManager& sm) {
+void InstallInterfaces(SM::ServiceManager& sm, Core::System& system) {
     std::make_shared<BTM>()->InstallAsService(sm);
     std::make_shared<BTM_DBG>()->InstallAsService(sm);
     std::make_shared<BTM_SYS>()->InstallAsService(sm);
-    std::make_shared<BTM_USR>()->InstallAsService(sm);
+    std::make_shared<BTM_USR>(system)->InstallAsService(sm);
 }
 
 } // namespace Service::BTM

src/core/hle/service/btm/btm.h

@@ -8,8 +8,12 @@ namespace Service::SM {
 class ServiceManager;
 }
 
+namespace Core {
+class System;
+};
+
 namespace Service::BTM {
 
-void InstallInterfaces(SM::ServiceManager& sm);
+void InstallInterfaces(SM::ServiceManager& sm, Core::System& system);
 
 } // namespace Service::BTM

src/core/hle/service/fatal/fatal.cpp

@@ -20,8 +20,8 @@
 
 namespace Service::Fatal {
 
-Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)
-    : ServiceFramework(name), module(std::move(module)) {}
+Module::Interface::Interface(std::shared_ptr<Module> module, Core::System& system, const char* name)
+    : ServiceFramework(name), module(std::move(module)), system(system) {}
 
 Module::Interface::~Interface() = default;
 
@@ -64,7 +64,8 @@ enum class FatalType : u32 {
     ErrorScreen = 2,
 };
 
-static void GenerateErrorReport(ResultCode error_code, const FatalInfo& info) {
+static void GenerateErrorReport(Core::System& system, ResultCode error_code,
+                                const FatalInfo& info) {
     const auto title_id = Core::CurrentProcess()->GetTitleID();
     std::string crash_report = fmt::format(
         "Yuzu {}-{} crash report\n"
@@ -101,18 +102,19 @@ static void GenerateErrorReport(ResultCode error_code, const FatalInfo& info) {
 
     LOG_ERROR(Service_Fatal, "{}", crash_report);
 
-    Core::System::GetInstance().GetReporter().SaveCrashReport(
+    system.GetReporter().SaveCrashReport(
         title_id, error_code, info.set_flags, info.program_entry_point, info.sp, info.pc,
         info.pstate, info.afsr0, info.afsr1, info.esr, info.far, info.registers, info.backtrace,
         info.backtrace_size, info.ArchAsString(), info.unk10);
 }
 
-static void ThrowFatalError(ResultCode error_code, FatalType fatal_type, const FatalInfo& info) {
+static void ThrowFatalError(Core::System& system, ResultCode error_code, FatalType fatal_type,
+                            const FatalInfo& info) {
     LOG_ERROR(Service_Fatal, "Threw fatal error type {} with error code 0x{:X}",
               static_cast<u32>(fatal_type), error_code.raw);
     switch (fatal_type) {
     case FatalType::ErrorReportAndScreen:
-        GenerateErrorReport(error_code, info);
+        GenerateErrorReport(system, error_code, info);
         [[fallthrough]];
     case FatalType::ErrorScreen:
         // Since we have no fatal:u error screen. We should just kill execution instead
@@ -120,7 +122,7 @@ static void ThrowFatalError(ResultCode error_code, FatalType fatal_type, const F
         break;
         // Should not throw a fatal screen but should generate an error report
     case FatalType::ErrorReport:
-        GenerateErrorReport(error_code, info);
+        GenerateErrorReport(system, error_code, info);
         break;
     }
 }
@@ -130,7 +132,7 @@ void Module::Interface::ThrowFatal(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto error_code = rp.Pop<ResultCode>();
 
-    ThrowFatalError(error_code, FatalType::ErrorScreen, {});
+    ThrowFatalError(system, error_code, FatalType::ErrorScreen, {});
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
@@ -141,7 +143,8 @@ void Module::Interface::ThrowFatalWithPolicy(Kernel::HLERequestContext& ctx) {
     const auto error_code = rp.Pop<ResultCode>();
     const auto fatal_type = rp.PopEnum<FatalType>();
 
-    ThrowFatalError(error_code, fatal_type, {}); // No info is passed with ThrowFatalWithPolicy
+    ThrowFatalError(system, error_code, fatal_type,
+                    {}); // No info is passed with ThrowFatalWithPolicy
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
@@ -157,15 +160,15 @@ void Module::Interface::ThrowFatalWithCpuContext(Kernel::HLERequestContext& ctx)
     ASSERT_MSG(fatal_info.size() == sizeof(FatalInfo), "Invalid fatal info buffer size!");
     std::memcpy(&info, fatal_info.data(), sizeof(FatalInfo));
 
-    ThrowFatalError(error_code, fatal_type, info);
+    ThrowFatalError(system, error_code, fatal_type, info);
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
 
-void InstallInterfaces(SM::ServiceManager& service_manager) {
+void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system) {
     auto module = std::make_shared<Module>();
-    std::make_shared<Fatal_P>(module)->InstallAsService(service_manager);
-    std::make_shared<Fatal_U>(module)->InstallAsService(service_manager);
+    std::make_shared<Fatal_P>(module, system)->InstallAsService(service_manager);
+    std::make_shared<Fatal_U>(module, system)->InstallAsService(service_manager);
 }
 
 } // namespace Service::Fatal

src/core/hle/service/fatal/fatal.h

@@ -6,13 +6,17 @@
 
 #include "core/hle/service/service.h"
 
+namespace Core {
+class System;
+}
+
 namespace Service::Fatal {
 
 class Module final {
 public:
     class Interface : public ServiceFramework<Interface> {
     public:
-        explicit Interface(std::shared_ptr<Module> module, const char* name);
+        explicit Interface(std::shared_ptr<Module> module, Core::System& system, const char* name);
         ~Interface() override;
 
         void ThrowFatal(Kernel::HLERequestContext& ctx);
@@ -21,9 +25,10 @@ public:
 
     protected:
         std::shared_ptr<Module> module;
+        Core::System& system;
     };
 };
 
-void InstallInterfaces(SM::ServiceManager& service_manager);
+void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system);
 
 } // namespace Service::Fatal

src/core/hle/service/fatal/fatal_p.cpp

@@ -6,8 +6,8 @@
 
 namespace Service::Fatal {
 
-Fatal_P::Fatal_P(std::shared_ptr<Module> module)
-    : Module::Interface(std::move(module), "fatal:p") {}
+Fatal_P::Fatal_P(std::shared_ptr<Module> module, Core::System& system)
+    : Module::Interface(std::move(module), system, "fatal:p") {}
 
 Fatal_P::~Fatal_P() = default;
 

src/core/hle/service/fatal/fatal_p.h

@@ -10,7 +10,7 @@ namespace Service::Fatal {
 
 class Fatal_P final : public Module::Interface {
 public:
-    explicit Fatal_P(std::shared_ptr<Module> module);
+    explicit Fatal_P(std::shared_ptr<Module> module, Core::System& system);
     ~Fatal_P() override;
 };
 

src/core/hle/service/fatal/fatal_u.cpp

@@ -6,7 +6,8 @@
 
 namespace Service::Fatal {
 
-Fatal_U::Fatal_U(std::shared_ptr<Module> module) : Module::Interface(std::move(module), "fatal:u") {
+Fatal_U::Fatal_U(std::shared_ptr<Module> module, Core::System& system)
+    : Module::Interface(std::move(module), system, "fatal:u") {
     static const FunctionInfo functions[] = {
         {0, &Fatal_U::ThrowFatal, "ThrowFatal"},
         {1, &Fatal_U::ThrowFatalWithPolicy, "ThrowFatalWithPolicy"},

src/core/hle/service/fatal/fatal_u.h

@@ -10,7 +10,7 @@ namespace Service::Fatal {
 
 class Fatal_U final : public Module::Interface {
 public:
-    explicit Fatal_U(std::shared_ptr<Module> module);
+    explicit Fatal_U(std::shared_ptr<Module> module, Core::System& system);
     ~Fatal_U() override;
 };
 

src/core/hle/service/filesystem/filesystem.cpp

@@ -8,6 +8,7 @@
 #include "common/file_util.h"
 #include "core/core.h"
 #include "core/file_sys/bis_factory.h"
+#include "core/file_sys/card_image.h"
 #include "core/file_sys/control_metadata.h"
 #include "core/file_sys/errors.h"
 #include "core/file_sys/mode.h"
@@ -25,14 +26,10 @@
 #include "core/hle/service/filesystem/fsp_pr.h"
 #include "core/hle/service/filesystem/fsp_srv.h"
 #include "core/loader/loader.h"
+#include "core/settings.h"
 
 namespace Service::FileSystem {
 
-// Size of emulated sd card free space, reported in bytes.
-// Just using 32GB because thats reasonable
-// TODO(DarkLordZach): Eventually make this configurable in settings.
-constexpr u64 EMULATED_SD_REPORTED_SIZE = 32000000000;
-
 // A default size for normal/journal save data size if application control metadata cannot be found.
 // This should be large enough to satisfy even the most extreme requirements (~4.2GB)
 constexpr u64 SUFFICIENT_SAVE_DATA_SIZE = 0xF0000000;
@@ -226,13 +223,6 @@ ResultVal<FileSys::VirtualDir> VfsDirectoryServiceWrapper::OpenDirectory(const s
     return MakeResult(dir);
 }
 
-u64 VfsDirectoryServiceWrapper::GetFreeSpaceSize() const {
-    if (backing->IsWritable())
-        return EMULATED_SD_REPORTED_SIZE;
-
-    return 0;
-}
-
 ResultVal<FileSys::EntryType> VfsDirectoryServiceWrapper::GetEntryType(
     const std::string& path_) const {
     std::string path(FileUtil::SanitizePath(path_));
@@ -251,44 +241,39 @@ ResultVal<FileSys::EntryType> VfsDirectoryServiceWrapper::GetEntryType(
     return FileSys::ERROR_PATH_NOT_FOUND;
 }
 
-/**
- * Map of registered file systems, identified by type. Once an file system is registered here, it
- * is never removed until UnregisterFileSystems is called.
- */
-static std::unique_ptr<FileSys::RomFSFactory> romfs_factory;
-static std::unique_ptr<FileSys::SaveDataFactory> save_data_factory;
-static std::unique_ptr<FileSys::SDMCFactory> sdmc_factory;
-static std::unique_ptr<FileSys::BISFactory> bis_factory;
+FileSystemController::FileSystemController() = default;
 
-ResultCode RegisterRomFS(std::unique_ptr<FileSys::RomFSFactory>&& factory) {
-    ASSERT_MSG(romfs_factory == nullptr, "Tried to register a second RomFS");
+FileSystemController::~FileSystemController() = default;
+
+ResultCode FileSystemController::RegisterRomFS(std::unique_ptr<FileSys::RomFSFactory>&& factory) {
     romfs_factory = std::move(factory);
     LOG_DEBUG(Service_FS, "Registered RomFS");
     return RESULT_SUCCESS;
 }
 
-ResultCode RegisterSaveData(std::unique_ptr<FileSys::SaveDataFactory>&& factory) {
-    ASSERT_MSG(romfs_factory == nullptr, "Tried to register a second save data");
+ResultCode FileSystemController::RegisterSaveData(
+    std::unique_ptr<FileSys::SaveDataFactory>&& factory) {
+    ASSERT_MSG(save_data_factory == nullptr, "Tried to register a second save data");
     save_data_factory = std::move(factory);
     LOG_DEBUG(Service_FS, "Registered save data");
     return RESULT_SUCCESS;
 }
 
-ResultCode RegisterSDMC(std::unique_ptr<FileSys::SDMCFactory>&& factory) {
+ResultCode FileSystemController::RegisterSDMC(std::unique_ptr<FileSys::SDMCFactory>&& factory) {
     ASSERT_MSG(sdmc_factory == nullptr, "Tried to register a second SDMC");
     sdmc_factory = std::move(factory);
     LOG_DEBUG(Service_FS, "Registered SDMC");
     return RESULT_SUCCESS;
 }
 
-ResultCode RegisterBIS(std::unique_ptr<FileSys::BISFactory>&& factory) {
+ResultCode FileSystemController::RegisterBIS(std::unique_ptr<FileSys::BISFactory>&& factory) {
     ASSERT_MSG(bis_factory == nullptr, "Tried to register a second BIS");
     bis_factory = std::move(factory);
     LOG_DEBUG(Service_FS, "Registered BIS");
     return RESULT_SUCCESS;
 }
 
-void SetPackedUpdate(FileSys::VirtualFile update_raw) {
+void FileSystemController::SetPackedUpdate(FileSys::VirtualFile update_raw) {
     LOG_TRACE(Service_FS, "Setting packed update for romfs");
 
     if (romfs_factory == nullptr)
@@ -297,7 +282,7 @@ void SetPackedUpdate(FileSys::VirtualFile update_raw) {
     romfs_factory->SetPackedUpdate(std::move(update_raw));
 }
 
-ResultVal<FileSys::VirtualFile> OpenRomFSCurrentProcess() {
+ResultVal<FileSys::VirtualFile> FileSystemController::OpenRomFSCurrentProcess() const {
     LOG_TRACE(Service_FS, "Opening RomFS for current process");
 
     if (romfs_factory == nullptr) {
@@ -308,8 +293,8 @@ ResultVal<FileSys::VirtualFile> OpenRomFSCurrentProcess() {
     return romfs_factory->OpenCurrentProcess();
 }
 
-ResultVal<FileSys::VirtualFile> OpenRomFS(u64 title_id, FileSys::StorageId storage_id,
-                                          FileSys::ContentRecordType type) {
+ResultVal<FileSys::VirtualFile> FileSystemController::OpenRomFS(
+    u64 title_id, FileSys::StorageId storage_id, FileSys::ContentRecordType type) const {
     LOG_TRACE(Service_FS, "Opening RomFS for title_id={:016X}, storage_id={:02X}, type={:02X}",
               title_id, static_cast<u8>(storage_id), static_cast<u8>(type));
 
@@ -321,8 +306,20 @@ ResultVal<FileSys::VirtualFile> OpenRomFS(u64 title_id, FileSys::StorageId stora
     return romfs_factory->Open(title_id, storage_id, type);
 }
 
-ResultVal<FileSys::VirtualDir> OpenSaveData(FileSys::SaveDataSpaceId space,
-                                            const FileSys::SaveDataDescriptor& descriptor) {
+ResultVal<FileSys::VirtualDir> FileSystemController::CreateSaveData(
+    FileSys::SaveDataSpaceId space, const FileSys::SaveDataDescriptor& save_struct) const {
+    LOG_TRACE(Service_FS, "Creating Save Data for space_id={:01X}, save_struct={}",
+              static_cast<u8>(space), save_struct.DebugInfo());
+
+    if (save_data_factory == nullptr) {
+        return FileSys::ERROR_ENTITY_NOT_FOUND;
+    }
+
+    return save_data_factory->Create(space, save_struct);
+}
+
+ResultVal<FileSys::VirtualDir> FileSystemController::OpenSaveData(
+    FileSys::SaveDataSpaceId space, const FileSys::SaveDataDescriptor& descriptor) const {
     LOG_TRACE(Service_FS, "Opening Save Data for space_id={:01X}, save_struct={}",
               static_cast<u8>(space), descriptor.DebugInfo());
 
@@ -333,7 +330,8 @@ ResultVal<FileSys::VirtualDir> OpenSaveData(FileSys::SaveDataSpaceId space,
     return save_data_factory->Open(space, descriptor);
 }
 
-ResultVal<FileSys::VirtualDir> OpenSaveDataSpace(FileSys::SaveDataSpaceId space) {
+ResultVal<FileSys::VirtualDir> FileSystemController::OpenSaveDataSpace(
+    FileSys::SaveDataSpaceId space) const {
     LOG_TRACE(Service_FS, "Opening Save Data Space for space_id={:01X}", static_cast<u8>(space));
 
     if (save_data_factory == nullptr) {
@@ -343,7 +341,7 @@ ResultVal<FileSys::VirtualDir> OpenSaveDataSpace(FileSys::SaveDataSpaceId space)
     return MakeResult(save_data_factory->GetSaveDataSpaceDirectory(space));
 }
 
-ResultVal<FileSys::VirtualDir> OpenSDMC() {
+ResultVal<FileSys::VirtualDir> FileSystemController::OpenSDMC() const {
     LOG_TRACE(Service_FS, "Opening SDMC");
 
     if (sdmc_factory == nullptr) {
@@ -353,7 +351,92 @@ ResultVal<FileSys::VirtualDir> OpenSDMC() {
     return sdmc_factory->Open();
 }
 
-FileSys::SaveDataSize ReadSaveDataSize(FileSys::SaveDataType type, u64 title_id, u128 user_id) {
+ResultVal<FileSys::VirtualDir> FileSystemController::OpenBISPartition(
+    FileSys::BisPartitionId id) const {
+    LOG_TRACE(Service_FS, "Opening BIS Partition with id={:08X}", static_cast<u32>(id));
+
+    if (bis_factory == nullptr) {
+        return FileSys::ERROR_ENTITY_NOT_FOUND;
+    }
+
+    auto part = bis_factory->OpenPartition(id);
+    if (part == nullptr) {
+        return FileSys::ERROR_INVALID_ARGUMENT;
+    }
+
+    return MakeResult<FileSys::VirtualDir>(std::move(part));
+}
+
+ResultVal<FileSys::VirtualFile> FileSystemController::OpenBISPartitionStorage(
+    FileSys::BisPartitionId id) const {
+    LOG_TRACE(Service_FS, "Opening BIS Partition Storage with id={:08X}", static_cast<u32>(id));
+
+    if (bis_factory == nullptr) {
+        return FileSys::ERROR_ENTITY_NOT_FOUND;
+    }
+
+    auto part = bis_factory->OpenPartitionStorage(id);
+    if (part == nullptr) {
+        return FileSys::ERROR_INVALID_ARGUMENT;
+    }
+
+    return MakeResult<FileSys::VirtualFile>(std::move(part));
+}
+
+u64 FileSystemController::GetFreeSpaceSize(FileSys::StorageId id) const {
+    switch (id) {
+    case FileSys::StorageId::None:
+    case FileSys::StorageId::GameCard:
+        return 0;
+    case FileSys::StorageId::SdCard:
+        if (sdmc_factory == nullptr)
+            return 0;
+        return sdmc_factory->GetSDMCFreeSpace();
+    case FileSys::StorageId::Host:
+        if (bis_factory == nullptr)
+            return 0;
+        return bis_factory->GetSystemNANDFreeSpace() + bis_factory->GetUserNANDFreeSpace();
+    case FileSys::StorageId::NandSystem:
+        if (bis_factory == nullptr)
+            return 0;
+        return bis_factory->GetSystemNANDFreeSpace();
+    case FileSys::StorageId::NandUser:
+        if (bis_factory == nullptr)
+            return 0;
+        return bis_factory->GetUserNANDFreeSpace();
+    }
+
+    return 0;
+}
+
+u64 FileSystemController::GetTotalSpaceSize(FileSys::StorageId id) const {
+    switch (id) {
+    case FileSys::StorageId::None:
+    case FileSys::StorageId::GameCard:
+        return 0;
+    case FileSys::StorageId::SdCard:
+        if (sdmc_factory == nullptr)
+            return 0;
+        return sdmc_factory->GetSDMCTotalSpace();
+    case FileSys::StorageId::Host:
+        if (bis_factory == nullptr)
+            return 0;
+        return bis_factory->GetFullNANDTotalSpace();
+    case FileSys::StorageId::NandSystem:
+        if (bis_factory == nullptr)
+            return 0;
+        return bis_factory->GetSystemNANDTotalSpace();
+    case FileSys::StorageId::NandUser:
+        if (bis_factory == nullptr)
+            return 0;
+        return bis_factory->GetUserNANDTotalSpace();
+    }
+
+    return 0;
+}
+
+FileSys::SaveDataSize FileSystemController::ReadSaveDataSize(FileSys::SaveDataType type,
+                                                             u64 title_id, u128 user_id) const {
     if (save_data_factory == nullptr) {
         return {0, 0};
     }
@@ -385,13 +468,32 @@ FileSys::SaveDataSize ReadSaveDataSize(FileSys::SaveDataType type, u64 title_id,
     return value;
 }
 
-void WriteSaveDataSize(FileSys::SaveDataType type, u64 title_id, u128 user_id,
-                       FileSys::SaveDataSize new_value) {
+void FileSystemController::WriteSaveDataSize(FileSys::SaveDataType type, u64 title_id, u128 user_id,
+                                             FileSys::SaveDataSize new_value) const {
     if (save_data_factory != nullptr)
         save_data_factory->WriteSaveDataSize(type, title_id, user_id, new_value);
 }
 
-FileSys::RegisteredCache* GetSystemNANDContents() {
+void FileSystemController::SetGameCard(FileSys::VirtualFile file) {
+    gamecard = std::make_unique<FileSys::XCI>(file);
+    const auto dir = gamecard->ConcatenatedPseudoDirectory();
+    gamecard_registered = std::make_unique<FileSys::RegisteredCache>(dir);
+    gamecard_placeholder = std::make_unique<FileSys::PlaceholderCache>(dir);
+}
+
+FileSys::XCI* FileSystemController::GetGameCard() const {
+    return gamecard.get();
+}
+
+FileSys::RegisteredCache* FileSystemController::GetGameCardContents() const {
+    return gamecard_registered.get();
+}
+
+FileSys::PlaceholderCache* FileSystemController::GetGameCardPlaceholder() const {
+    return gamecard_placeholder.get();
+}
+
+FileSys::RegisteredCache* FileSystemController::GetSystemNANDContents() const {
     LOG_TRACE(Service_FS, "Opening System NAND Contents");
 
     if (bis_factory == nullptr)
@@ -400,7 +502,7 @@ FileSys::RegisteredCache* GetSystemNANDContents() {
     return bis_factory->GetSystemNANDContents();
 }
 
-FileSys::RegisteredCache* GetUserNANDContents() {
+FileSys::RegisteredCache* FileSystemController::GetUserNANDContents() const {
     LOG_TRACE(Service_FS, "Opening User NAND Contents");
 
     if (bis_factory == nullptr)
@@ -409,7 +511,7 @@ FileSys::RegisteredCache* GetUserNANDContents() {
     return bis_factory->GetUserNANDContents();
 }
 
-FileSys::RegisteredCache* GetSDMCContents() {
+FileSys::RegisteredCache* FileSystemController::GetSDMCContents() const {
     LOG_TRACE(Service_FS, "Opening SDMC Contents");
 
     if (sdmc_factory == nullptr)
@@ -418,7 +520,143 @@ FileSys::RegisteredCache* GetSDMCContents() {
     return sdmc_factory->GetSDMCContents();
 }
 
-FileSys::VirtualDir GetModificationLoadRoot(u64 title_id) {
+FileSys::PlaceholderCache* FileSystemController::GetSystemNANDPlaceholder() const {
+    LOG_TRACE(Service_FS, "Opening System NAND Placeholder");
+
+    if (bis_factory == nullptr)
+        return nullptr;
+
+    return bis_factory->GetSystemNANDPlaceholder();
+}
+
+FileSys::PlaceholderCache* FileSystemController::GetUserNANDPlaceholder() const {
+    LOG_TRACE(Service_FS, "Opening User NAND Placeholder");
+
+    if (bis_factory == nullptr)
+        return nullptr;
+
+    return bis_factory->GetUserNANDPlaceholder();
+}
+
+FileSys::PlaceholderCache* FileSystemController::GetSDMCPlaceholder() const {
+    LOG_TRACE(Service_FS, "Opening SDMC Placeholder");
+
+    if (sdmc_factory == nullptr)
+        return nullptr;
+
+    return sdmc_factory->GetSDMCPlaceholder();
+}
+
+FileSys::RegisteredCache* FileSystemController::GetRegisteredCacheForStorage(
+    FileSys::StorageId id) const {
+    switch (id) {
+    case FileSys::StorageId::None:
+    case FileSys::StorageId::Host:
+        UNIMPLEMENTED();
+        return nullptr;
+    case FileSys::StorageId::GameCard:
+        return GetGameCardContents();
+    case FileSys::StorageId::NandSystem:
+        return GetSystemNANDContents();
+    case FileSys::StorageId::NandUser:
+        return GetUserNANDContents();
+    case FileSys::StorageId::SdCard:
+        return GetSDMCContents();
+    }
+
+    return nullptr;
+}
+
+FileSys::PlaceholderCache* FileSystemController::GetPlaceholderCacheForStorage(
+    FileSys::StorageId id) const {
+    switch (id) {
+    case FileSys::StorageId::None:
+    case FileSys::StorageId::Host:
+        UNIMPLEMENTED();
+        return nullptr;
+    case FileSys::StorageId::GameCard:
+        return GetGameCardPlaceholder();
+    case FileSys::StorageId::NandSystem:
+        return GetSystemNANDPlaceholder();
+    case FileSys::StorageId::NandUser:
+        return GetUserNANDPlaceholder();
+    case FileSys::StorageId::SdCard:
+        return GetSDMCPlaceholder();
+    }
+
+    return nullptr;
+}
+
+FileSys::VirtualDir FileSystemController::GetSystemNANDContentDirectory() const {
+    LOG_TRACE(Service_FS, "Opening system NAND content directory");
+
+    if (bis_factory == nullptr)
+        return nullptr;
+
+    return bis_factory->GetSystemNANDContentDirectory();
+}
+
+FileSys::VirtualDir FileSystemController::GetUserNANDContentDirectory() const {
+    LOG_TRACE(Service_FS, "Opening user NAND content directory");
+
+    if (bis_factory == nullptr)
+        return nullptr;
+
+    return bis_factory->GetUserNANDContentDirectory();
+}
+
+FileSys::VirtualDir FileSystemController::GetSDMCContentDirectory() const {
+    LOG_TRACE(Service_FS, "Opening SDMC content directory");
+
+    if (sdmc_factory == nullptr)
+        return nullptr;
+
+    return sdmc_factory->GetSDMCContentDirectory();
+}
+
+FileSys::VirtualDir FileSystemController::GetNANDImageDirectory() const {
+    LOG_TRACE(Service_FS, "Opening NAND image directory");
+
+    if (bis_factory == nullptr)
+        return nullptr;
+
+    return bis_factory->GetImageDirectory();
+}
+
+FileSys::VirtualDir FileSystemController::GetSDMCImageDirectory() const {
+    LOG_TRACE(Service_FS, "Opening SDMC image directory");
+
+    if (sdmc_factory == nullptr)
+        return nullptr;
+
+    return sdmc_factory->GetImageDirectory();
+}
+
+FileSys::VirtualDir FileSystemController::GetContentDirectory(ContentStorageId id) const {
+    switch (id) {
+    case ContentStorageId::System:
+        return GetSystemNANDContentDirectory();
+    case ContentStorageId::User:
+        return GetUserNANDContentDirectory();
+    case ContentStorageId::SdCard:
+        return GetSDMCContentDirectory();
+    }
+
+    return nullptr;
+}
+
+FileSys::VirtualDir FileSystemController::GetImageDirectory(ImageDirectoryId id) const {
+    switch (id) {
+    case ImageDirectoryId::NAND:
+        return GetNANDImageDirectory();
+    case ImageDirectoryId::SdCard:
+        return GetSDMCImageDirectory();
+    }
+
+    return nullptr;
+}
+
+FileSys::VirtualDir FileSystemController::GetModificationLoadRoot(u64 title_id) const {
     LOG_TRACE(Service_FS, "Opening mod load root for tid={:016X}", title_id);
 
     if (bis_factory == nullptr)
@@ -427,7 +665,7 @@ FileSys::VirtualDir GetModificationLoadRoot(u64 title_id) {
     return bis_factory->GetModificationLoadRoot(title_id);
 }
 
-FileSys::VirtualDir GetModificationDumpRoot(u64 title_id) {
+FileSys::VirtualDir FileSystemController::GetModificationDumpRoot(u64 title_id) const {
     LOG_TRACE(Service_FS, "Opening mod dump root for tid={:016X}", title_id);
 
     if (bis_factory == nullptr)
@@ -436,7 +674,16 @@ FileSys::VirtualDir GetModificationDumpRoot(u64 title_id) {
     return bis_factory->GetModificationDumpRoot(title_id);
 }
 
-void CreateFactories(FileSys::VfsFilesystem& vfs, bool overwrite) {
+FileSys::VirtualDir FileSystemController::GetBCATDirectory(u64 title_id) const {
+    LOG_TRACE(Service_FS, "Opening BCAT root for tid={:016X}", title_id);
+
+    if (bis_factory == nullptr)
+        return nullptr;
+
+    return bis_factory->GetBCATDirectory(title_id);
+}
+
+void FileSystemController::CreateFactories(FileSys::VfsFilesystem& vfs, bool overwrite) {
     if (overwrite) {
         bis_factory = nullptr;
         save_data_factory = nullptr;
@@ -473,11 +720,10 @@ void CreateFactories(FileSys::VfsFilesystem& vfs, bool overwrite) {
 }
 
 void InstallInterfaces(Core::System& system) {
-    romfs_factory = nullptr;
-    CreateFactories(*system.GetFilesystem(), false);
     std::make_shared<FSP_LDR>()->InstallAsService(system.ServiceManager());
     std::make_shared<FSP_PR>()->InstallAsService(system.ServiceManager());
-    std::make_shared<FSP_SRV>(system.GetReporter())->InstallAsService(system.ServiceManager());
+    std::make_shared<FSP_SRV>(system.GetFileSystemController(), system.GetReporter())
+        ->InstallAsService(system.ServiceManager());
 }
 
 } // namespace Service::FileSystem

src/core/hle/service/filesystem/filesystem.h

@@ -14,10 +14,13 @@ namespace FileSys {
 class BISFactory;
 class RegisteredCache;
 class RegisteredCacheUnion;
+class PlaceholderCache;
 class RomFSFactory;
 class SaveDataFactory;
 class SDMCFactory;
+class XCI;
 
+enum class BisPartitionId : u32;
 enum class ContentRecordType : u8;
 enum class Mode : u32;
 enum class SaveDataSpaceId : u8;
@@ -36,34 +39,93 @@ class ServiceManager;
 
 namespace FileSystem {
 
-ResultCode RegisterRomFS(std::unique_ptr<FileSys::RomFSFactory>&& factory);
-ResultCode RegisterSaveData(std::unique_ptr<FileSys::SaveDataFactory>&& factory);
-ResultCode RegisterSDMC(std::unique_ptr<FileSys::SDMCFactory>&& factory);
-ResultCode RegisterBIS(std::unique_ptr<FileSys::BISFactory>&& factory);
+enum class ContentStorageId : u32 {
+    System,
+    User,
+    SdCard,
+};
 
-void SetPackedUpdate(FileSys::VirtualFile update_raw);
-ResultVal<FileSys::VirtualFile> OpenRomFSCurrentProcess();
-ResultVal<FileSys::VirtualFile> OpenRomFS(u64 title_id, FileSys::StorageId storage_id,
-                                          FileSys::ContentRecordType type);
-ResultVal<FileSys::VirtualDir> OpenSaveData(FileSys::SaveDataSpaceId space,
-                                            const FileSys::SaveDataDescriptor& descriptor);
-ResultVal<FileSys::VirtualDir> OpenSaveDataSpace(FileSys::SaveDataSpaceId space);
-ResultVal<FileSys::VirtualDir> OpenSDMC();
+enum class ImageDirectoryId : u32 {
+    NAND,
+    SdCard,
+};
 
-FileSys::SaveDataSize ReadSaveDataSize(FileSys::SaveDataType type, u64 title_id, u128 user_id);
-void WriteSaveDataSize(FileSys::SaveDataType type, u64 title_id, u128 user_id,
-                       FileSys::SaveDataSize new_value);
+class FileSystemController {
+public:
+    FileSystemController();
+    ~FileSystemController();
 
-FileSys::RegisteredCache* GetSystemNANDContents();
-FileSys::RegisteredCache* GetUserNANDContents();
-FileSys::RegisteredCache* GetSDMCContents();
+    ResultCode RegisterRomFS(std::unique_ptr<FileSys::RomFSFactory>&& factory);
+    ResultCode RegisterSaveData(std::unique_ptr<FileSys::SaveDataFactory>&& factory);
+    ResultCode RegisterSDMC(std::unique_ptr<FileSys::SDMCFactory>&& factory);
+    ResultCode RegisterBIS(std::unique_ptr<FileSys::BISFactory>&& factory);
 
-FileSys::VirtualDir GetModificationLoadRoot(u64 title_id);
-FileSys::VirtualDir GetModificationDumpRoot(u64 title_id);
+    void SetPackedUpdate(FileSys::VirtualFile update_raw);
+    ResultVal<FileSys::VirtualFile> OpenRomFSCurrentProcess() const;
+    ResultVal<FileSys::VirtualFile> OpenRomFS(u64 title_id, FileSys::StorageId storage_id,
+                                              FileSys::ContentRecordType type) const;
+    ResultVal<FileSys::VirtualDir> CreateSaveData(
+        FileSys::SaveDataSpaceId space, const FileSys::SaveDataDescriptor& save_struct) const;
+    ResultVal<FileSys::VirtualDir> OpenSaveData(
+        FileSys::SaveDataSpaceId space, const FileSys::SaveDataDescriptor& save_struct) const;
+    ResultVal<FileSys::VirtualDir> OpenSaveDataSpace(FileSys::SaveDataSpaceId space) const;
+    ResultVal<FileSys::VirtualDir> OpenSDMC() const;
+    ResultVal<FileSys::VirtualDir> OpenBISPartition(FileSys::BisPartitionId id) const;
+    ResultVal<FileSys::VirtualFile> OpenBISPartitionStorage(FileSys::BisPartitionId id) const;
 
-// Creates the SaveData, SDMC, and BIS Factories. Should be called once and before any function
-// above is called.
-void CreateFactories(FileSys::VfsFilesystem& vfs, bool overwrite = true);
+    u64 GetFreeSpaceSize(FileSys::StorageId id) const;
+    u64 GetTotalSpaceSize(FileSys::StorageId id) const;
+
+    FileSys::SaveDataSize ReadSaveDataSize(FileSys::SaveDataType type, u64 title_id,
+                                           u128 user_id) const;
+    void WriteSaveDataSize(FileSys::SaveDataType type, u64 title_id, u128 user_id,
+                           FileSys::SaveDataSize new_value) const;
+
+    void SetGameCard(FileSys::VirtualFile file);
+    FileSys::XCI* GetGameCard() const;
+
+    FileSys::RegisteredCache* GetSystemNANDContents() const;
+    FileSys::RegisteredCache* GetUserNANDContents() const;
+    FileSys::RegisteredCache* GetSDMCContents() const;
+    FileSys::RegisteredCache* GetGameCardContents() const;
+
+    FileSys::PlaceholderCache* GetSystemNANDPlaceholder() const;
+    FileSys::PlaceholderCache* GetUserNANDPlaceholder() const;
+    FileSys::PlaceholderCache* GetSDMCPlaceholder() const;
+    FileSys::PlaceholderCache* GetGameCardPlaceholder() const;
+
+    FileSys::RegisteredCache* GetRegisteredCacheForStorage(FileSys::StorageId id) const;
+    FileSys::PlaceholderCache* GetPlaceholderCacheForStorage(FileSys::StorageId id) const;
+
+    FileSys::VirtualDir GetSystemNANDContentDirectory() const;
+    FileSys::VirtualDir GetUserNANDContentDirectory() const;
+    FileSys::VirtualDir GetSDMCContentDirectory() const;
+
+    FileSys::VirtualDir GetNANDImageDirectory() const;
+    FileSys::VirtualDir GetSDMCImageDirectory() const;
+
+    FileSys::VirtualDir GetContentDirectory(ContentStorageId id) const;
+    FileSys::VirtualDir GetImageDirectory(ImageDirectoryId id) const;
+
+    FileSys::VirtualDir GetModificationLoadRoot(u64 title_id) const;
+    FileSys::VirtualDir GetModificationDumpRoot(u64 title_id) const;
+
+    FileSys::VirtualDir GetBCATDirectory(u64 title_id) const;
+
+    // Creates the SaveData, SDMC, and BIS Factories. Should be called once and before any function
+    // above is called.
+    void CreateFactories(FileSys::VfsFilesystem& vfs, bool overwrite = true);
+
+private:
+    std::unique_ptr<FileSys::RomFSFactory> romfs_factory;
+    std::unique_ptr<FileSys::SaveDataFactory> save_data_factory;
+    std::unique_ptr<FileSys::SDMCFactory> sdmc_factory;
+    std::unique_ptr<FileSys::BISFactory> bis_factory;
+
+    std::unique_ptr<FileSys::XCI> gamecard;
+    std::unique_ptr<FileSys::RegisteredCache> gamecard_registered;
+    std::unique_ptr<FileSys::PlaceholderCache> gamecard_placeholder;
+};
 
 void InstallInterfaces(Core::System& system);
 
@@ -159,12 +221,6 @@ public:
      */
     ResultVal<FileSys::VirtualDir> OpenDirectory(const std::string& path);
 
-    /**
-     * Get the free space
-     * @return The number of free bytes in the archive
-     */
-    u64 GetFreeSpaceSize() const;
-
     /**
      * Get the type of the specified path
      * @return The type of the specified path or error code

src/core/hle/service/filesystem/fsp_srv.cpp

@@ -19,6 +19,7 @@
 #include "core/file_sys/mode.h"
 #include "core/file_sys/nca_metadata.h"
 #include "core/file_sys/patch_manager.h"
+#include "core/file_sys/romfs_factory.h"
 #include "core/file_sys/savedata_factory.h"
 #include "core/file_sys/system_archive/system_archive.h"
 #include "core/file_sys/vfs.h"
@@ -30,6 +31,18 @@
 
 namespace Service::FileSystem {
 
+struct SizeGetter {
+    std::function<u64()> get_free_size;
+    std::function<u64()> get_total_size;
+
+    static SizeGetter FromStorageId(const FileSystemController& fsc, FileSys::StorageId id) {
+        return {
+            [&fsc, id] { return fsc.GetFreeSpaceSize(id); },
+            [&fsc, id] { return fsc.GetTotalSpaceSize(id); },
+        };
+    }
+};
+
 enum class FileSystemType : u8 {
     Invalid0 = 0,
     Invalid1 = 1,
@@ -289,8 +302,8 @@ private:
 
 class IFileSystem final : public ServiceFramework<IFileSystem> {
 public:
-    explicit IFileSystem(FileSys::VirtualDir backend)
-        : ServiceFramework("IFileSystem"), backend(std::move(backend)) {
+    explicit IFileSystem(FileSys::VirtualDir backend, SizeGetter size)
+        : ServiceFramework("IFileSystem"), backend(std::move(backend)), size(std::move(size)) {
         static const FunctionInfo functions[] = {
             {0, &IFileSystem::CreateFile, "CreateFile"},
             {1, &IFileSystem::DeleteFile, "DeleteFile"},
@@ -467,14 +480,31 @@ public:
         rb.Push(RESULT_SUCCESS);
     }
 
+    void GetFreeSpaceSize(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_FS, "called");
+
+        IPC::ResponseBuilder rb{ctx, 4};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push(size.get_free_size());
+    }
+
+    void GetTotalSpaceSize(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_FS, "called");
+
+        IPC::ResponseBuilder rb{ctx, 4};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push(size.get_total_size());
+    }
+
 private:
     VfsDirectoryServiceWrapper backend;
+    SizeGetter size;
 };
 
 class ISaveDataInfoReader final : public ServiceFramework<ISaveDataInfoReader> {
 public:
-    explicit ISaveDataInfoReader(FileSys::SaveDataSpaceId space)
-        : ServiceFramework("ISaveDataInfoReader") {
+    explicit ISaveDataInfoReader(FileSys::SaveDataSpaceId space, FileSystemController& fsc)
+        : ServiceFramework("ISaveDataInfoReader"), fsc(fsc) {
         static const FunctionInfo functions[] = {
             {0, &ISaveDataInfoReader::ReadSaveDataInfo, "ReadSaveDataInfo"},
         };
@@ -520,8 +550,13 @@ private:
     }
 
     void FindAllSaves(FileSys::SaveDataSpaceId space) {
-        const auto save_root = OpenSaveDataSpace(space);
-        ASSERT(save_root.Succeeded());
+        const auto save_root = fsc.OpenSaveDataSpace(space);
+
+        if (save_root.Failed() || *save_root == nullptr) {
+            LOG_ERROR(Service_FS, "The save root for the space_id={:02X} was invalid!",
+                      static_cast<u8>(space));
+            return;
+        }
 
         for (const auto& type : (*save_root)->GetSubdirectories()) {
             if (type->GetName() == "save") {
@@ -610,11 +645,13 @@ private:
     };
     static_assert(sizeof(SaveDataInfo) == 0x60, "SaveDataInfo has incorrect size.");
 
+    FileSystemController& fsc;
     std::vector<SaveDataInfo> info;
     u64 next_entry_index = 0;
 };
 
-FSP_SRV::FSP_SRV(const Core::Reporter& reporter) : ServiceFramework("fsp-srv"), reporter(reporter) {
+FSP_SRV::FSP_SRV(FileSystemController& fsc, const Core::Reporter& reporter)
+    : ServiceFramework("fsp-srv"), fsc(fsc), reporter(reporter) {
     // clang-format off
     static const FunctionInfo functions[] = {
         {0, nullptr, "OpenFileSystem"},
@@ -754,7 +791,8 @@ void FSP_SRV::OpenFileSystemWithPatch(Kernel::HLERequestContext& ctx) {
 void FSP_SRV::OpenSdCardFileSystem(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_FS, "called");
 
-    IFileSystem filesystem(OpenSDMC().Unwrap());
+    IFileSystem filesystem(fsc.OpenSDMC().Unwrap(),
+                           SizeGetter::FromStorageId(fsc, FileSys::StorageId::SdCard));
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
@@ -768,8 +806,10 @@ void FSP_SRV::CreateSaveDataFileSystem(Kernel::HLERequestContext& ctx) {
     auto save_create_struct = rp.PopRaw<std::array<u8, 0x40>>();
     u128 uid = rp.PopRaw<u128>();
 
-    LOG_WARNING(Service_FS, "(STUBBED) called save_struct = {}, uid = {:016X}{:016X}",
-                save_struct.DebugInfo(), uid[1], uid[0]);
+    LOG_DEBUG(Service_FS, "called save_struct = {}, uid = {:016X}{:016X}", save_struct.DebugInfo(),
+              uid[1], uid[0]);
+
+    fsc.CreateSaveData(FileSys::SaveDataSpaceId::NandUser, save_struct);
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
@@ -786,14 +826,24 @@ void FSP_SRV::OpenSaveDataFileSystem(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto parameters = rp.PopRaw<Parameters>();
 
-    auto dir = OpenSaveData(parameters.save_data_space_id, parameters.descriptor);
+    auto dir = fsc.OpenSaveData(parameters.save_data_space_id, parameters.descriptor);
     if (dir.Failed()) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 0};
         rb.Push(FileSys::ERROR_ENTITY_NOT_FOUND);
         return;
     }
 
-    IFileSystem filesystem(std::move(dir.Unwrap()));
+    FileSys::StorageId id;
+    if (parameters.save_data_space_id == FileSys::SaveDataSpaceId::NandUser) {
+        id = FileSys::StorageId::NandUser;
+    } else if (parameters.save_data_space_id == FileSys::SaveDataSpaceId::SdCardSystem ||
+               parameters.save_data_space_id == FileSys::SaveDataSpaceId::SdCardUser) {
+        id = FileSys::StorageId::SdCard;
+    } else {
+        id = FileSys::StorageId::NandSystem;
+    }
+
+    IFileSystem filesystem(std::move(dir.Unwrap()), SizeGetter::FromStorageId(fsc, id));
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
@@ -812,7 +862,7 @@ void FSP_SRV::OpenSaveDataInfoReaderBySaveDataSpaceId(Kernel::HLERequestContext&
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<ISaveDataInfoReader>(std::make_shared<ISaveDataInfoReader>(space));
+    rb.PushIpcInterface<ISaveDataInfoReader>(std::make_shared<ISaveDataInfoReader>(space, fsc));
 }
 
 void FSP_SRV::SetGlobalAccessLogMode(Kernel::HLERequestContext& ctx) {
@@ -836,7 +886,7 @@ void FSP_SRV::GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx) {
 void FSP_SRV::OpenDataStorageByCurrentProcess(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_FS, "called");
 
-    auto romfs = OpenRomFSCurrentProcess();
+    auto romfs = fsc.OpenRomFSCurrentProcess();
     if (romfs.Failed()) {
         // TODO (bunnei): Find the right error code to use here
         LOG_CRITICAL(Service_FS, "no file system interface available!");
@@ -861,7 +911,7 @@ void FSP_SRV::OpenDataStorageByDataId(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_FS, "called with storage_id={:02X}, unknown={:08X}, title_id={:016X}",
               static_cast<u8>(storage_id), unknown, title_id);
 
-    auto data = OpenRomFS(title_id, storage_id, FileSys::ContentRecordType::Data);
+    auto data = fsc.OpenRomFS(title_id, storage_id, FileSys::ContentRecordType::Data);
 
     if (data.Failed()) {
         const auto archive = FileSys::SystemArchive::SynthesizeSystemArchive(title_id);

src/core/hle/service/filesystem/fsp_srv.h

@@ -32,7 +32,7 @@ enum class LogMode : u32 {
 
 class FSP_SRV final : public ServiceFramework<FSP_SRV> {
 public:
-    explicit FSP_SRV(const Core::Reporter& reporter);
+    explicit FSP_SRV(FileSystemController& fsc, const Core::Reporter& reporter);
     ~FSP_SRV() override;
 
 private:
@@ -51,6 +51,8 @@ private:
     void OutputAccessLogToSdCard(Kernel::HLERequestContext& ctx);
     void GetAccessLogVersionInfo(Kernel::HLERequestContext& ctx);
 
+    FileSystemController& fsc;
+
     FileSys::VirtualFile romfs;
     u64 current_process_id = 0;
     u32 access_log_program_index = 0;

src/core/hle/service/friend/friend.cpp

@@ -149,7 +149,8 @@ private:
 
 class INotificationService final : public ServiceFramework<INotificationService> {
 public:
-    INotificationService(Common::UUID uuid) : ServiceFramework("INotificationService"), uuid(uuid) {
+    INotificationService(Common::UUID uuid, Core::System& system)
+        : ServiceFramework("INotificationService"), uuid(uuid) {
         // clang-format off
         static const FunctionInfo functions[] = {
             {0, &INotificationService::GetEvent, "GetEvent"},
@@ -159,6 +160,9 @@ public:
         // clang-format on
 
         RegisterHandlers(functions);
+
+        notification_event = Kernel::WritableEvent::CreateEventPair(
+            system.Kernel(), Kernel::ResetType::Manual, "INotificationService:NotifyEvent");
     }
 
 private:
@@ -167,13 +171,6 @@ private:
 
         IPC::ResponseBuilder rb{ctx, 2, 1};
         rb.Push(RESULT_SUCCESS);
-
-        if (!is_event_created) {
-            auto& kernel = Core::System::GetInstance().Kernel();
-            notification_event = Kernel::WritableEvent::CreateEventPair(
-                kernel, Kernel::ResetType::Manual, "INotificationService:NotifyEvent");
-            is_event_created = true;
-        }
         rb.PushCopyObjects(notification_event.readable);
     }
 
@@ -261,21 +258,21 @@ void Module::Interface::CreateNotificationService(Kernel::HLERequestContext& ctx
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<INotificationService>(uuid);
+    rb.PushIpcInterface<INotificationService>(uuid, system);
 }
 
-Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)
-    : ServiceFramework(name), module(std::move(module)) {}
+Module::Interface::Interface(std::shared_ptr<Module> module, Core::System& system, const char* name)
+    : ServiceFramework(name), module(std::move(module)), system(system) {}
 
 Module::Interface::~Interface() = default;
 
-void InstallInterfaces(SM::ServiceManager& service_manager) {
+void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system) {
     auto module = std::make_shared<Module>();
-    std::make_shared<Friend>(module, "friend:a")->InstallAsService(service_manager);
-    std::make_shared<Friend>(module, "friend:m")->InstallAsService(service_manager);
-    std::make_shared<Friend>(module, "friend:s")->InstallAsService(service_manager);
-    std::make_shared<Friend>(module, "friend:u")->InstallAsService(service_manager);
-    std::make_shared<Friend>(module, "friend:v")->InstallAsService(service_manager);
+    std::make_shared<Friend>(module, system, "friend:a")->InstallAsService(service_manager);
+    std::make_shared<Friend>(module, system, "friend:m")->InstallAsService(service_manager);
+    std::make_shared<Friend>(module, system, "friend:s")->InstallAsService(service_manager);
+    std::make_shared<Friend>(module, system, "friend:u")->InstallAsService(service_manager);
+    std::make_shared<Friend>(module, system, "friend:v")->InstallAsService(service_manager);
 }
 
 } // namespace Service::Friend

src/core/hle/service/friend/friend.h

@@ -6,13 +6,17 @@
 
 #include "core/hle/service/service.h"
 
+namespace Core {
+class System;
+}
+
 namespace Service::Friend {
 
 class Module final {
 public:
     class Interface : public ServiceFramework<Interface> {
     public:
-        explicit Interface(std::shared_ptr<Module> module, const char* name);
+        explicit Interface(std::shared_ptr<Module> module, Core::System& system, const char* name);
         ~Interface() override;
 
         void CreateFriendService(Kernel::HLERequestContext& ctx);
@@ -20,10 +24,11 @@ public:
 
     protected:
         std::shared_ptr<Module> module;
+        Core::System& system;
     };
 };
 
 /// Registers all Friend services with the specified service manager.
-void InstallInterfaces(SM::ServiceManager& service_manager);
+void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system);
 
 } // namespace Service::Friend

src/core/hle/service/friend/interface.cpp

@@ -6,8 +6,8 @@
 
 namespace Service::Friend {
 
-Friend::Friend(std::shared_ptr<Module> module, const char* name)
-    : Interface(std::move(module), name) {
+Friend::Friend(std::shared_ptr<Module> module, Core::System& system, const char* name)
+    : Interface(std::move(module), system, name) {
     static const FunctionInfo functions[] = {
         {0, &Friend::CreateFriendService, "CreateFriendService"},
         {1, &Friend::CreateNotificationService, "CreateNotificationService"},

src/core/hle/service/friend/interface.h

@@ -10,7 +10,7 @@ namespace Service::Friend {
 
 class Friend final : public Module::Interface {
 public:
-    explicit Friend(std::shared_ptr<Module> module, const char* name);
+    explicit Friend(std::shared_ptr<Module> module, Core::System& system, const char* name);
     ~Friend() override;
 };