50 files changed, 984 insertions, 319 deletions

diff --git a/src/core/file_sys/bis_factory.cpp b/src/core/file_sys/bis_factory.cpp
index 76a2b7e86..e29f70b3a 100644
--- a/src/core/file_sys/bis_factory.cpp
+++ b/src/core/file_sys/bis_factory.cpp
@@ -8,8 +8,9 @@
 
 namespace FileSys {
 
-BISFactory::BISFactory(VirtualDir nand_root_, VirtualDir load_root_)
+BISFactory::BISFactory(VirtualDir nand_root_, VirtualDir load_root_, VirtualDir dump_root_)
     : nand_root(std::move(nand_root_)), load_root(std::move(load_root_)),
+      dump_root(std::move(dump_root_)),
       sysnand_cache(std::make_unique<RegisteredCache>(
           GetOrCreateDirectoryRelative(nand_root, "/system/Contents/registered"))),
       usrnand_cache(std::make_unique<RegisteredCache>(
@@ -32,4 +33,10 @@ VirtualDir BISFactory::GetModificationLoadRoot(u64 title_id) const {
     return GetOrCreateDirectoryRelative(load_root, fmt::format("/{:016X}", title_id));
 }
 
+VirtualDir BISFactory::GetModificationDumpRoot(u64 title_id) const {
+    if (title_id == 0)
+        return nullptr;
+    return GetOrCreateDirectoryRelative(dump_root, fmt::format("/{:016X}", title_id));
+}
+
 } // namespace FileSys
diff --git a/src/core/file_sys/bis_factory.h b/src/core/file_sys/bis_factory.h
index 364d309bd..453c11ad2 100644
--- a/src/core/file_sys/bis_factory.h
+++ b/src/core/file_sys/bis_factory.h
@@ -17,17 +17,19 @@ class RegisteredCache;
 /// registered caches.
 class BISFactory {
 public:
-    explicit BISFactory(VirtualDir nand_root, VirtualDir load_root);
+    explicit BISFactory(VirtualDir nand_root, VirtualDir load_root, VirtualDir dump_root);
     ~BISFactory();
 
     RegisteredCache* GetSystemNANDContents() const;
     RegisteredCache* GetUserNANDContents() const;
 
     VirtualDir GetModificationLoadRoot(u64 title_id) const;
+    VirtualDir GetModificationDumpRoot(u64 title_id) const;
 
 private:
     VirtualDir nand_root;
     VirtualDir load_root;
+    VirtualDir dump_root;
 
     std::unique_ptr<RegisteredCache> sysnand_cache;
     std::unique_ptr<RegisteredCache> usrnand_cache;
diff --git a/src/core/file_sys/card_image.cpp b/src/core/file_sys/card_image.cpp
index 1ece55731..2c145bd09 100644
--- a/src/core/file_sys/card_image.cpp
+++ b/src/core/file_sys/card_image.cpp
@@ -176,7 +176,7 @@ Loader::ResultStatus XCI::AddNCAFromPartition(XCIPartition part) {
     for (const VirtualFile& file : partitions[static_cast<std::size_t>(part)]->GetFiles()) {
         if (file->GetExtension() != "nca")
             continue;
-        auto nca = std::make_shared<NCA>(file);
+        auto nca = std::make_shared<NCA>(file, nullptr, 0, keys);
         // TODO(DarkLordZach): Add proper Rev1+ Support
         if (nca->IsUpdate())
             continue;
diff --git a/src/core/file_sys/card_image.h b/src/core/file_sys/card_image.h
index 8f62571cf..25f5914b6 100644
--- a/src/core/file_sys/card_image.h
+++ b/src/core/file_sys/card_image.h
@@ -9,6 +9,7 @@
 #include <vector>
 #include "common/common_types.h"
 #include "common/swap.h"
+#include "core/crypto/key_manager.h"
 #include "core/file_sys/vfs.h"
 
 namespace Loader {
@@ -107,5 +108,7 @@ private:
     std::shared_ptr<NSP> secure_partition;
     std::shared_ptr<NCA> program;
     std::vector<std::shared_ptr<NCA>> ncas;
+
+    Core::Crypto::KeyManager keys;
 };
 } // namespace FileSys
diff --git a/src/core/file_sys/content_archive.cpp b/src/core/file_sys/content_archive.cpp
index b46fe893c..19b6f8600 100644
--- a/src/core/file_sys/content_archive.cpp
+++ b/src/core/file_sys/content_archive.cpp
@@ -101,8 +101,9 @@ static bool IsValidNCA(const NCAHeader& header) {
     return header.magic == Common::MakeMagic('N', 'C', 'A', '3');
 }
 
-NCA::NCA(VirtualFile file_, VirtualFile bktr_base_romfs_, u64 bktr_base_ivfc_offset)
-    : file(std::move(file_)), bktr_base_romfs(std::move(bktr_base_romfs_)) {
+NCA::NCA(VirtualFile file_, VirtualFile bktr_base_romfs_, u64 bktr_base_ivfc_offset,
+         Core::Crypto::KeyManager keys_)
+    : file(std::move(file_)), bktr_base_romfs(std::move(bktr_base_romfs_)), keys(std::move(keys_)) {
     if (file == nullptr) {
         status = Loader::ResultStatus::ErrorNullFile;
         return;
diff --git a/src/core/file_sys/content_archive.h b/src/core/file_sys/content_archive.h
index 4bba55607..99294cbb4 100644
--- a/src/core/file_sys/content_archive.h
+++ b/src/core/file_sys/content_archive.h
@@ -79,7 +79,8 @@ inline bool IsDirectoryExeFS(const std::shared_ptr<VfsDirectory>& pfs) {
 class NCA : public ReadOnlyVfsDirectory {
 public:
     explicit NCA(VirtualFile file, VirtualFile bktr_base_romfs = nullptr,
-                 u64 bktr_base_ivfc_offset = 0);
+                 u64 bktr_base_ivfc_offset = 0,
+                 Core::Crypto::KeyManager keys = Core::Crypto::KeyManager());
     ~NCA() override;
 
     Loader::ResultStatus GetStatus() const;
diff --git a/src/core/file_sys/control_metadata.cpp b/src/core/file_sys/control_metadata.cpp
index a012c2be9..c8fa912bf 100644
--- a/src/core/file_sys/control_metadata.cpp
+++ b/src/core/file_sys/control_metadata.cpp
@@ -66,4 +66,10 @@ std::string NACP::GetVersionString() const {
     return Common::StringFromFixedZeroTerminatedBuffer(raw->version_string.data(),
                                                        raw->version_string.size());
 }
+
+std::vector<u8> NACP::GetRawBytes() const {
+    std::vector<u8> out(sizeof(RawNACP));
+    std::memcpy(out.data(), raw.get(), sizeof(RawNACP));
+    return out;
+}
 } // namespace FileSys
diff --git a/src/core/file_sys/control_metadata.h b/src/core/file_sys/control_metadata.h
index 141f7e056..bfaad46b4 100644
--- a/src/core/file_sys/control_metadata.h
+++ b/src/core/file_sys/control_metadata.h
@@ -81,6 +81,7 @@ public:
     u64 GetTitleId() const;
     u64 GetDLCBaseTitleId() const;
     std::string GetVersionString() const;
+    std::vector<u8> GetRawBytes() const;
 
 private:
     std::unique_ptr<RawNACP> raw;
diff --git a/src/core/file_sys/errors.h b/src/core/file_sys/errors.h
index fea0593c7..e4a4ee4ab 100644
--- a/src/core/file_sys/errors.h
+++ b/src/core/file_sys/errors.h
@@ -8,25 +8,10 @@
 
 namespace FileSys {
 
-namespace ErrCodes {
-enum {
-    NotFound = 1,
-    TitleNotFound = 1002,
-    SdCardNotFound = 2001,
-    RomFSNotFound = 2520,
-};
-}
-
-constexpr ResultCode ERROR_PATH_NOT_FOUND(ErrorModule::FS, ErrCodes::NotFound);
-
-// TODO(bunnei): Replace these with correct errors for Switch OS
-constexpr ResultCode ERROR_INVALID_PATH(-1);
-constexpr ResultCode ERROR_UNSUPPORTED_OPEN_FLAGS(-1);
-constexpr ResultCode ERROR_INVALID_OPEN_FLAGS(-1);
-constexpr ResultCode ERROR_FILE_NOT_FOUND(-1);
-constexpr ResultCode ERROR_UNEXPECTED_FILE_OR_DIRECTORY(-1);
-constexpr ResultCode ERROR_DIRECTORY_ALREADY_EXISTS(-1);
-constexpr ResultCode ERROR_FILE_ALREADY_EXISTS(-1);
-constexpr ResultCode ERROR_DIRECTORY_NOT_EMPTY(-1);
+constexpr ResultCode ERROR_PATH_NOT_FOUND{ErrorModule::FS, 1};
+constexpr ResultCode ERROR_ENTITY_NOT_FOUND{ErrorModule::FS, 1002};
+constexpr ResultCode ERROR_SD_CARD_NOT_FOUND{ErrorModule::FS, 2001};
+constexpr ResultCode ERROR_INVALID_OFFSET{ErrorModule::FS, 6061};
+constexpr ResultCode ERROR_INVALID_SIZE{ErrorModule::FS, 6062};
 
 } // namespace FileSys
diff --git a/src/core/file_sys/patch_manager.cpp b/src/core/file_sys/patch_manager.cpp
index 0c1156989..8d062eb3e 100644
--- a/src/core/file_sys/patch_manager.cpp
+++ b/src/core/file_sys/patch_manager.cpp
@@ -19,6 +19,7 @@
 #include "core/file_sys/vfs_vector.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/loader/loader.h"
+#include "core/settings.h"
 
 namespace FileSys {
 
@@ -119,6 +120,18 @@ std::vector<u8> PatchManager::PatchNSO(const std::vector<u8>& nso) const {
     const auto build_id_raw = Common::HexArrayToString(header.build_id);
     const auto build_id = build_id_raw.substr(0, build_id_raw.find_last_not_of('0') + 1);
 
+    if (Settings::values.dump_nso) {
+        LOG_INFO(Loader, "Dumping NSO for build_id={}, title_id={:016X}", build_id, title_id);
+        const auto dump_dir = Service::FileSystem::GetModificationDumpRoot(title_id);
+        if (dump_dir != nullptr) {
+            const auto nso_dir = GetOrCreateDirectoryRelative(dump_dir, "/nso");
+            const auto file = nso_dir->CreateFile(fmt::format("{}.nso", build_id));
+
+            file->Resize(nso.size());
+            file->WriteBytes(nso);
+        }
+    }
+
     LOG_INFO(Loader, "Patching NSO for build_id={}", build_id);
 
     const auto load_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
diff --git a/src/core/file_sys/registered_cache.cpp b/src/core/file_sys/registered_cache.cpp
index 96302a241..a3f8f2f73 100644
--- a/src/core/file_sys/registered_cache.cpp
+++ b/src/core/file_sys/registered_cache.cpp
@@ -106,9 +106,12 @@ static ContentRecordType GetCRTypeFromNCAType(NCAContentType type) {
 
 VirtualFile RegisteredCache::OpenFileOrDirectoryConcat(const VirtualDir& dir,
                                                        std::string_view path) const {
-    if (dir->GetFileRelative(path) != nullptr)
-        return dir->GetFileRelative(path);
-    if (dir->GetDirectoryRelative(path) != nullptr) {
+    const auto file = dir->GetFileRelative(path);
+    if (file != nullptr)
+        return file;
+
+    const auto nca_dir = dir->GetDirectoryRelative(path);
+    if (nca_dir != nullptr) {
         const auto nca_dir = dir->GetDirectoryRelative(path);
         VirtualFile file = nullptr;
 
@@ -225,7 +228,7 @@ void RegisteredCache::ProcessFiles(const std::vector<NcaID>& ids) {
 
         if (file == nullptr)
             continue;
-        const auto nca = std::make_shared<NCA>(parser(file, id));
+        const auto nca = std::make_shared<NCA>(parser(file, id), nullptr, 0, keys);
         if (nca->GetStatus() != Loader::ResultStatus::Success ||
             nca->GetType() != NCAContentType::Meta) {
             continue;
@@ -315,7 +318,7 @@ std::unique_ptr<NCA> RegisteredCache::GetEntry(u64 title_id, ContentRecordType t
     const auto raw = GetEntryRaw(title_id, type);
     if (raw == nullptr)
         return nullptr;
-    return std::make_unique<NCA>(raw);
+    return std::make_unique<NCA>(raw, nullptr, 0, keys);
 }
 
 std::unique_ptr<NCA> RegisteredCache::GetEntry(RegisteredCacheEntry entry) const {
diff --git a/src/core/file_sys/registered_cache.h b/src/core/file_sys/registered_cache.h
index 6cfb16017..6b89db8de 100644
--- a/src/core/file_sys/registered_cache.h
+++ b/src/core/file_sys/registered_cache.h
@@ -12,6 +12,7 @@
 #include <vector>
 #include <boost/container/flat_map.hpp>
 #include "common/common_types.h"
+#include "core/crypto/key_manager.h"
 #include "core/file_sys/vfs.h"
 
 namespace FileSys {
@@ -133,6 +134,8 @@ private:
 
     VirtualDir dir;
     RegisteredCacheParsingFunction parser;
+    Core::Crypto::KeyManager keys;
+
     // maps tid -> NcaID of meta
     boost::container::flat_map<u64, NcaID> meta_id;
     // maps tid -> meta
diff --git a/src/core/file_sys/savedata_factory.cpp b/src/core/file_sys/savedata_factory.cpp
index ef1aaebbb..5434f2149 100644
--- a/src/core/file_sys/savedata_factory.cpp
+++ b/src/core/file_sys/savedata_factory.cpp
@@ -83,28 +83,32 @@ ResultVal<VirtualDir> SaveDataFactory::Open(SaveDataSpaceId space, SaveDataDescr
     return MakeResult<VirtualDir>(std::move(out));
 }
 
-std::string SaveDataFactory::GetFullPath(SaveDataSpaceId space, SaveDataType type, u64 title_id,
-                                         u128 user_id, u64 save_id) {
-    // According to switchbrew, if a save is of type SaveData and the title id field is 0, it should
-    // be interpreted as the title id of the current process.
-    if (type == SaveDataType::SaveData && title_id == 0)
-        title_id = Core::CurrentProcess()->GetTitleID();
-
-    std::string out;
+VirtualDir SaveDataFactory::GetSaveDataSpaceDirectory(SaveDataSpaceId space) const {
+    return dir->GetDirectoryRelative(GetSaveDataSpaceIdPath(space));
+}
 
+std::string SaveDataFactory::GetSaveDataSpaceIdPath(SaveDataSpaceId space) {
     switch (space) {
     case SaveDataSpaceId::NandSystem:
-        out = "/system/";
-        break;
+        return "/system/";
     case SaveDataSpaceId::NandUser:
-        out = "/user/";
-        break;
+        return "/user/";
     case SaveDataSpaceId::TemporaryStorage:
-        out = "/temp/";
-        break;
+        return "/temp/";
     default:
         ASSERT_MSG(false, "Unrecognized SaveDataSpaceId: {:02X}", static_cast<u8>(space));
+        return "/unrecognized/"; ///< To prevent corruption when ignoring asserts.
     }
+}
+
+std::string SaveDataFactory::GetFullPath(SaveDataSpaceId space, SaveDataType type, u64 title_id,
+                                         u128 user_id, u64 save_id) {
+    // According to switchbrew, if a save is of type SaveData and the title id field is 0, it should
+    // be interpreted as the title id of the current process.
+    if (type == SaveDataType::SaveData && title_id == 0)
+        title_id = Core::CurrentProcess()->GetTitleID();
+
+    std::string out = GetSaveDataSpaceIdPath(space);
 
     switch (type) {
     case SaveDataType::SystemSaveData:
diff --git a/src/core/file_sys/savedata_factory.h b/src/core/file_sys/savedata_factory.h
index d69ef6741..2a0088040 100644
--- a/src/core/file_sys/savedata_factory.h
+++ b/src/core/file_sys/savedata_factory.h
@@ -52,6 +52,9 @@ public:
 
     ResultVal<VirtualDir> Open(SaveDataSpaceId space, SaveDataDescriptor meta);
 
+    VirtualDir GetSaveDataSpaceDirectory(SaveDataSpaceId space) const;
+
+    static std::string GetSaveDataSpaceIdPath(SaveDataSpaceId space);
     static std::string GetFullPath(SaveDataSpaceId space, SaveDataType type, u64 title_id,
                                    u128 user_id, u64 save_id);
 
diff --git a/src/core/file_sys/submission_package.cpp b/src/core/file_sys/submission_package.cpp
index 2aaba4179..e1a4210db 100644
--- a/src/core/file_sys/submission_package.cpp
+++ b/src/core/file_sys/submission_package.cpp
@@ -252,7 +252,7 @@ void NSP::ReadNCAs(const std::vector<VirtualFile>& files) {
                     continue;
                 }
 
-                auto next_nca = std::make_shared<NCA>(next_file);
+                auto next_nca = std::make_shared<NCA>(next_file, nullptr, 0, keys);
                 if (next_nca->GetType() == NCAContentType::Program)
                     program_status[cnmt.GetTitleID()] = next_nca->GetStatus();
                 if (next_nca->GetStatus() == Loader::ResultStatus::Success ||
diff --git a/src/core/file_sys/submission_package.h b/src/core/file_sys/submission_package.h
index 338080b7e..9a28ed5bb 100644
--- a/src/core/file_sys/submission_package.h
+++ b/src/core/file_sys/submission_package.h
@@ -70,6 +70,8 @@ private:
     std::map<u64, std::map<ContentRecordType, std::shared_ptr<NCA>>> ncas;
     std::vector<VirtualFile> ticket_files;
 
+    Core::Crypto::KeyManager keys;
+
     VirtualFile romfs;
     VirtualDir exefs;
 };
diff --git a/src/core/hle/kernel/errors.h b/src/core/hle/kernel/errors.h
index ee698c8a7..8b58d701d 100644
--- a/src/core/hle/kernel/errors.h
+++ b/src/core/hle/kernel/errors.h
@@ -8,58 +8,28 @@
 
 namespace Kernel {
 
-namespace ErrCodes {
-enum {
-    // Confirmed Switch OS error codes
-    MaxConnectionsReached = 7,
-    InvalidSize = 101,
-    InvalidAddress = 102,
-    HandleTableFull = 105,
-    InvalidMemoryState = 106,
-    InvalidMemoryPermissions = 108,
-    InvalidMemoryRange = 110,
-    InvalidThreadPriority = 112,
-    InvalidProcessorId = 113,
-    InvalidHandle = 114,
-    InvalidPointer = 115,
-    InvalidCombination = 116,
-    Timeout = 117,
-    SynchronizationCanceled = 118,
-    TooLarge = 119,
-    InvalidEnumValue = 120,
-    NoSuchEntry = 121,
-    AlreadyRegistered = 122,
-    SessionClosed = 123,
-    InvalidState = 125,
-    ResourceLimitExceeded = 132,
-};
-}
+// Confirmed Switch kernel error codes
 
-// WARNING: The kernel is quite inconsistent in it's usage of errors code. Make sure to always
-// double check that the code matches before re-using the constant.
-
-constexpr ResultCode ERR_HANDLE_TABLE_FULL(ErrorModule::Kernel, ErrCodes::HandleTableFull);
-constexpr ResultCode ERR_SESSION_CLOSED_BY_REMOTE(ErrorModule::Kernel, ErrCodes::SessionClosed);
-constexpr ResultCode ERR_PORT_NAME_TOO_LONG(ErrorModule::Kernel, ErrCodes::TooLarge);
-constexpr ResultCode ERR_MAX_CONNECTIONS_REACHED(ErrorModule::Kernel,
-                                                 ErrCodes::MaxConnectionsReached);
-constexpr ResultCode ERR_INVALID_ENUM_VALUE(ErrorModule::Kernel, ErrCodes::InvalidEnumValue);
-constexpr ResultCode ERR_INVALID_COMBINATION_KERNEL(ErrorModule::Kernel,
-                                                    ErrCodes::InvalidCombination);
-constexpr ResultCode ERR_INVALID_ADDRESS(ErrorModule::Kernel, ErrCodes::InvalidAddress);
-constexpr ResultCode ERR_INVALID_ADDRESS_STATE(ErrorModule::Kernel, ErrCodes::InvalidMemoryState);
-constexpr ResultCode ERR_INVALID_MEMORY_PERMISSIONS(ErrorModule::Kernel,
-                                                    ErrCodes::InvalidMemoryPermissions);
-constexpr ResultCode ERR_INVALID_MEMORY_RANGE(ErrorModule::Kernel, ErrCodes::InvalidMemoryRange);
-constexpr ResultCode ERR_INVALID_HANDLE(ErrorModule::Kernel, ErrCodes::InvalidHandle);
-constexpr ResultCode ERR_INVALID_PROCESSOR_ID(ErrorModule::Kernel, ErrCodes::InvalidProcessorId);
-constexpr ResultCode ERR_INVALID_SIZE(ErrorModule::Kernel, ErrCodes::InvalidSize);
-constexpr ResultCode ERR_ALREADY_REGISTERED(ErrorModule::Kernel, ErrCodes::AlreadyRegistered);
-constexpr ResultCode ERR_INVALID_STATE(ErrorModule::Kernel, ErrCodes::InvalidState);
-constexpr ResultCode ERR_INVALID_THREAD_PRIORITY(ErrorModule::Kernel,
-                                                 ErrCodes::InvalidThreadPriority);
-constexpr ResultCode ERR_INVALID_POINTER(ErrorModule::Kernel, ErrCodes::InvalidPointer);
-constexpr ResultCode ERR_NOT_FOUND(ErrorModule::Kernel, ErrCodes::NoSuchEntry);
-constexpr ResultCode RESULT_TIMEOUT(ErrorModule::Kernel, ErrCodes::Timeout);
+constexpr ResultCode ERR_MAX_CONNECTIONS_REACHED{ErrorModule::Kernel, 7};
+constexpr ResultCode ERR_INVALID_SIZE{ErrorModule::Kernel, 101};
+constexpr ResultCode ERR_INVALID_ADDRESS{ErrorModule::Kernel, 102};
+constexpr ResultCode ERR_HANDLE_TABLE_FULL{ErrorModule::Kernel, 105};
+constexpr ResultCode ERR_INVALID_ADDRESS_STATE{ErrorModule::Kernel, 106};
+constexpr ResultCode ERR_INVALID_MEMORY_PERMISSIONS{ErrorModule::Kernel, 108};
+constexpr ResultCode ERR_INVALID_MEMORY_RANGE{ErrorModule::Kernel, 110};
+constexpr ResultCode ERR_INVALID_PROCESSOR_ID{ErrorModule::Kernel, 113};
+constexpr ResultCode ERR_INVALID_THREAD_PRIORITY{ErrorModule::Kernel, 112};
+constexpr ResultCode ERR_INVALID_HANDLE{ErrorModule::Kernel, 114};
+constexpr ResultCode ERR_INVALID_POINTER{ErrorModule::Kernel, 115};
+constexpr ResultCode ERR_INVALID_COMBINATION{ErrorModule::Kernel, 116};
+constexpr ResultCode RESULT_TIMEOUT{ErrorModule::Kernel, 117};
+constexpr ResultCode ERR_SYNCHRONIZATION_CANCELED{ErrorModule::Kernel, 118};
+constexpr ResultCode ERR_OUT_OF_RANGE{ErrorModule::Kernel, 119};
+constexpr ResultCode ERR_INVALID_ENUM_VALUE{ErrorModule::Kernel, 120};
+constexpr ResultCode ERR_NOT_FOUND{ErrorModule::Kernel, 121};
+constexpr ResultCode ERR_ALREADY_REGISTERED{ErrorModule::Kernel, 122};
+constexpr ResultCode ERR_SESSION_CLOSED_BY_REMOTE{ErrorModule::Kernel, 123};
+constexpr ResultCode ERR_INVALID_STATE{ErrorModule::Kernel, 125};
+constexpr ResultCode ERR_RESOURCE_LIMIT_EXCEEDED{ErrorModule::Kernel, 132};
 
 } // namespace Kernel
diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp
index 420218d59..f06b6bb55 100644
--- a/src/core/hle/kernel/process.cpp
+++ b/src/core/hle/kernel/process.cpp
@@ -5,11 +5,9 @@
 #include <algorithm>
 #include <memory>
 #include "common/assert.h"
-#include "common/common_funcs.h"
 #include "common/logging/log.h"
 #include "core/core.h"
 #include "core/file_sys/program_metadata.h"
-#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/resource_limit.h"
@@ -17,6 +15,7 @@
 #include "core/hle/kernel/thread.h"
 #include "core/hle/kernel/vm_manager.h"
 #include "core/memory.h"
+#include "core/settings.h"
 
 namespace Kernel {
 
@@ -35,6 +34,11 @@ SharedPtr<Process> Process::Create(KernelCore& kernel, std::string&& name) {
     process->process_id = kernel.CreateNewProcessID();
     process->svc_access_mask.set();
 
+    std::mt19937 rng(Settings::values.rng_seed.value_or(0));
+    std::uniform_int_distribution<u64> distribution;
+    std::generate(process->random_entropy.begin(), process->random_entropy.end(),
+                  [&] { return distribution(rng); });
+
     kernel.AppendNewProcess(process);
     return process;
 }
@@ -241,83 +245,15 @@ void Process::LoadModule(CodeSet module_, VAddr base_addr) {
 }
 
 ResultVal<VAddr> Process::HeapAllocate(VAddr target, u64 size, VMAPermission perms) {
-    if (target < vm_manager.GetHeapRegionBaseAddress() ||
-        target + size > vm_manager.GetHeapRegionEndAddress() || target + size < target) {
-        return ERR_INVALID_ADDRESS;
-    }
-
-    if (heap_memory == nullptr) {
-        // Initialize heap
-        heap_memory = std::make_shared<std::vector<u8>>();
-        heap_start = heap_end = target;
-    } else {
-        vm_manager.UnmapRange(heap_start, heap_end - heap_start);
-    }
-
-    // If necessary, expand backing vector to cover new heap extents.
-    if (target < heap_start) {
-        heap_memory->insert(begin(*heap_memory), heap_start - target, 0);
-        heap_start = target;
-        vm_manager.RefreshMemoryBlockMappings(heap_memory.get());
-    }
-    if (target + size > heap_end) {
-        heap_memory->insert(end(*heap_memory), (target + size) - heap_end, 0);
-        heap_end = target + size;
-        vm_manager.RefreshMemoryBlockMappings(heap_memory.get());
-    }
-    ASSERT(heap_end - heap_start == heap_memory->size());
-
-    CASCADE_RESULT(auto vma, vm_manager.MapMemoryBlock(target, heap_memory, target - heap_start,
-                                                       size, MemoryState::Heap));
-    vm_manager.Reprotect(vma, perms);
-
-    heap_used = size;
-
-    return MakeResult<VAddr>(heap_end - size);
+    return vm_manager.HeapAllocate(target, size, perms);
 }
 
 ResultCode Process::HeapFree(VAddr target, u32 size) {
-    if (target < vm_manager.GetHeapRegionBaseAddress() ||
-        target + size > vm_manager.GetHeapRegionEndAddress() || target + size < target) {
-        return ERR_INVALID_ADDRESS;
-    }
-
-    if (size == 0) {
-        return RESULT_SUCCESS;
-    }
-
-    ResultCode result = vm_manager.UnmapRange(target, size);
-    if (result.IsError())
-        return result;
-
-    heap_used -= size;
-
-    return RESULT_SUCCESS;
+    return vm_manager.HeapFree(target, size);
 }
 
 ResultCode Process::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
-    auto vma = vm_manager.FindVMA(src_addr);
-
-    ASSERT_MSG(vma != vm_manager.vma_map.end(), "Invalid memory address");
-    ASSERT_MSG(vma->second.backing_block, "Backing block doesn't exist for address");
-
-    // The returned VMA might be a bigger one encompassing the desired address.
-    auto vma_offset = src_addr - vma->first;
-    ASSERT_MSG(vma_offset + size <= vma->second.size,
-               "Shared memory exceeds bounds of mapped block");
-
-    const std::shared_ptr<std::vector<u8>>& backing_block = vma->second.backing_block;
-    std::size_t backing_block_offset = vma->second.offset + vma_offset;
-
-    CASCADE_RESULT(auto new_vma,
-                   vm_manager.MapMemoryBlock(dst_addr, backing_block, backing_block_offset, size,
-                                             MemoryState::Mapped));
-    // Protect mirror with permissions from old region
-    vm_manager.Reprotect(new_vma, vma->second.permissions);
-    // Remove permissions from old region
-    vm_manager.Reprotect(vma, VMAPermission::None);
-
-    return RESULT_SUCCESS;
+    return vm_manager.MirrorMemory(dst_addr, src_addr, size);
 }
 
 ResultCode Process::UnmapMemory(VAddr dst_addr, VAddr /*src_addr*/, u64 size) {
diff --git a/src/core/hle/kernel/process.h b/src/core/hle/kernel/process.h
index 8d2616c79..cf48787ce 100644
--- a/src/core/hle/kernel/process.h
+++ b/src/core/hle/kernel/process.h
@@ -8,6 +8,7 @@
 #include <bitset>
 #include <cstddef>
 #include <memory>
+#include <random>
 #include <string>
 #include <vector>
 #include <boost/container/static_vector.hpp>
@@ -119,6 +120,8 @@ struct CodeSet final {
 
 class Process final : public Object {
 public:
+    static constexpr std::size_t RANDOM_ENTROPY_SIZE = 4;
+
     static SharedPtr<Process> Create(KernelCore& kernel, std::string&& name);
 
     std::string GetTypeName() const override {
@@ -212,6 +215,11 @@ public:
         total_process_running_time_ticks += ticks;
     }
 
+    /// Gets 8 bytes of random data for svcGetInfo RandomEntropy
+    u64 GetRandomEntropy(std::size_t index) const {
+        return random_entropy.at(index);
+    }
+
     /**
      * Loads process-specifics configuration info with metadata provided
      * by an executable.
@@ -292,17 +300,6 @@ private:
     u32 allowed_thread_priority_mask = 0xFFFFFFFF;
     u32 is_virtual_address_memory_enabled = 0;
 
-    // Memory used to back the allocations in the regular heap. A single vector is used to cover
-    // the entire virtual address space extents that bound the allocations, including any holes.
-    // This makes deallocation and reallocation of holes fast and keeps process memory contiguous
-    // in the emulator address space, allowing Memory::GetPointer to be reasonably safe.
-    std::shared_ptr<std::vector<u8>> heap_memory;
-
-    // The left/right bounds of the address space covered by heap_memory.
-    VAddr heap_start = 0;
-    VAddr heap_end = 0;
-    u64 heap_used = 0;
-
     /// The Thread Local Storage area is allocated as processes create threads,
     /// each TLS area is 0x200 bytes, so one page (0x1000) is split up in 8 parts, and each part
     /// holds the TLS for a specific thread. This vector contains which parts are in use for each
@@ -321,6 +318,9 @@ private:
     /// Per-process handle table for storing created object handles in.
     HandleTable handle_table;
 
+    /// Random values for svcGetInfo RandomEntropy
+    std::array<u64, RANDOM_ENTROPY_SIZE> random_entropy;
+
     std::string name;
 };
 
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index 7e8e87c33..2e7c9d094 100644
--- a/src/core/hle/kernel/svc.cpp
+++ b/src/core/hle/kernel/svc.cpp
@@ -34,6 +34,7 @@
 #include "core/hle/lock.h"
 #include "core/hle/result.h"
 #include "core/hle/service/service.h"
+#include "core/settings.h"
 
 namespace Kernel {
 namespace {
@@ -122,6 +123,48 @@ static ResultCode SetHeapSize(VAddr* heap_addr, u64 heap_size) {
     return RESULT_SUCCESS;
 }
 
+static ResultCode SetMemoryPermission(VAddr addr, u64 size, u32 prot) {
+    LOG_TRACE(Kernel_SVC, "called, addr=0x{:X}, size=0x{:X}, prot=0x{:X}", addr, size, prot);
+
+    if (!Common::Is4KBAligned(addr)) {
+        return ERR_INVALID_ADDRESS;
+    }
+
+    if (size == 0 || !Common::Is4KBAligned(size)) {
+        return ERR_INVALID_SIZE;
+    }
+
+    if (!IsValidAddressRange(addr, size)) {
+        return ERR_INVALID_ADDRESS_STATE;
+    }
+
+    const auto permission = static_cast<MemoryPermission>(prot);
+    if (permission != MemoryPermission::None && permission != MemoryPermission::Read &&
+        permission != MemoryPermission::ReadWrite) {
+        return ERR_INVALID_MEMORY_PERMISSIONS;
+    }
+
+    auto* const current_process = Core::CurrentProcess();
+    auto& vm_manager = current_process->VMManager();
+
+    if (!IsInsideAddressSpace(vm_manager, addr, size)) {
+        return ERR_INVALID_ADDRESS_STATE;
+    }
+
+    const VMManager::VMAHandle iter = vm_manager.FindVMA(addr);
+    if (iter == vm_manager.vma_map.end()) {
+        return ERR_INVALID_ADDRESS_STATE;
+    }
+
+    LOG_WARNING(Kernel_SVC, "Uniformity check on protected memory is not implemented.");
+    // TODO: Performs a uniformity check to make sure only protected memory is changed (it doesn't
+    // make sense to allow changing permissions on kernel memory itself, etc).
+
+    const auto converted_permissions = SharedMemory::ConvertPermissions(permission);
+
+    return vm_manager.ReprotectRange(addr, size, converted_permissions);
+}
+
 static ResultCode SetMemoryAttribute(VAddr addr, u64 size, u32 state0, u32 state1) {
     LOG_WARNING(Kernel_SVC,
                 "(STUBBED) called, addr=0x{:X}, size=0x{:X}, state0=0x{:X}, state1=0x{:X}", addr,
@@ -171,7 +214,7 @@ static ResultCode ConnectToNamedPort(Handle* out_handle, VAddr port_name_address
     // Read 1 char beyond the max allowed port name to detect names that are too long.
     std::string port_name = Memory::ReadCString(port_name_address, PortNameMaxLength + 1);
     if (port_name.size() > PortNameMaxLength) {
-        return ERR_PORT_NAME_TOO_LONG;
+        return ERR_OUT_OF_RANGE;
     }
 
     LOG_TRACE(Kernel_SVC, "called port_name={}", port_name);
@@ -267,8 +310,9 @@ static ResultCode WaitSynchronization(Handle* index, VAddr handles_address, u64
 
     static constexpr u64 MaxHandles = 0x40;
 
-    if (handle_count > MaxHandles)
-        return ResultCode(ErrorModule::Kernel, ErrCodes::TooLarge);
+    if (handle_count > MaxHandles) {
+        return ERR_OUT_OF_RANGE;
+    }
 
     auto* const thread = GetCurrentThread();
 
@@ -333,8 +377,7 @@ static ResultCode CancelSynchronization(Handle thread_handle) {
     }
 
     ASSERT(thread->GetStatus() == ThreadStatus::WaitSynchAny);
-    thread->SetWaitSynchronizationResult(
-        ResultCode(ErrorModule::Kernel, ErrCodes::SynchronizationCanceled));
+    thread->SetWaitSynchronizationResult(ERR_SYNCHRONIZATION_CANCELED);
     thread->ResumeFromWait();
     return RESULT_SUCCESS;
 }
@@ -558,7 +601,16 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id)
         *result = 0;
         break;
     case GetInfoType::RandomEntropy:
-        *result = 0;
+        if (handle != 0) {
+            return ERR_INVALID_HANDLE;
+        }
+
+        if (info_sub_id >= Process::RANDOM_ENTROPY_SIZE) {
+            return ERR_INVALID_COMBINATION;
+        }
+
+        *result = current_process->GetRandomEntropy(info_sub_id);
+        return RESULT_SUCCESS;
         break;
     case GetInfoType::ASLRRegionBaseAddr:
         *result = vm_manager.GetASLRRegionBaseAddress();
@@ -591,7 +643,7 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id)
     case GetInfoType::ThreadTickCount: {
         constexpr u64 num_cpus = 4;
         if (info_sub_id != 0xFFFFFFFFFFFFFFFF && info_sub_id >= num_cpus) {
-            return ERR_INVALID_COMBINATION_KERNEL;
+            return ERR_INVALID_COMBINATION;
         }
 
         const auto thread =
@@ -1184,7 +1236,7 @@ static ResultCode SetThreadCoreMask(Handle thread_handle, u32 core, u64 mask) {
     }
 
     if (mask == 0) {
-        return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidCombination);
+        return ERR_INVALID_COMBINATION;
     }
 
     /// This value is used to only change the affinity mask without changing the current ideal core.
@@ -1193,12 +1245,12 @@ static ResultCode SetThreadCoreMask(Handle thread_handle, u32 core, u64 mask) {
     if (core == OnlyChangeMask) {
         core = thread->GetIdealCore();
     } else if (core >= Core::NUM_CPU_CORES && core != static_cast<u32>(-1)) {
-        return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidProcessorId);
+        return ERR_INVALID_PROCESSOR_ID;
     }
 
     // Error out if the input core isn't enabled in the input mask.
     if (core < Core::NUM_CPU_CORES && (mask & (1ull << core)) == 0) {
-        return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidCombination);
+        return ERR_INVALID_COMBINATION;
     }
 
     thread->ChangeCore(core, mask);
@@ -1287,7 +1339,7 @@ struct FunctionDef {
 static const FunctionDef SVC_Table[] = {
     {0x00, nullptr, "Unknown"},
     {0x01, SvcWrap<SetHeapSize>, "SetHeapSize"},
-    {0x02, nullptr, "SetMemoryPermission"},
+    {0x02, SvcWrap<SetMemoryPermission>, "SetMemoryPermission"},
     {0x03, SvcWrap<SetMemoryAttribute>, "SetMemoryAttribute"},
     {0x04, SvcWrap<MapMemory>, "MapMemory"},
     {0x05, SvcWrap<UnmapMemory>, "UnmapMemory"},
diff --git a/src/core/hle/kernel/svc_wrap.h b/src/core/hle/kernel/svc_wrap.h
index b09753c80..233a99fb0 100644
--- a/src/core/hle/kernel/svc_wrap.h
+++ b/src/core/hle/kernel/svc_wrap.h
@@ -121,6 +121,11 @@ void SvcWrap() {
     FuncReturn(func(Param(0), Param(1), Param(2)).raw);
 }
 
+template <ResultCode func(u64, u64, u32)>
+void SvcWrap() {
+    FuncReturn(func(Param(0), Param(1), static_cast<u32>(Param(2))).raw);
+}
+
 template <ResultCode func(u32, u64, u64, u32)>
 void SvcWrap() {
     FuncReturn(
diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp
index dd5cd9ced..4ffb76818 100644
--- a/src/core/hle/kernel/thread.cpp
+++ b/src/core/hle/kernel/thread.cpp
@@ -142,36 +142,7 @@ void Thread::ResumeFromWait() {
 
     status = ThreadStatus::Ready;
 
-    std::optional<s32> new_processor_id = GetNextProcessorId(affinity_mask);
-    if (!new_processor_id) {
-        new_processor_id = processor_id;
-    }
-    if (ideal_core != -1 &&
-        Core::System::GetInstance().Scheduler(ideal_core).GetCurrentThread() == nullptr) {
-        new_processor_id = ideal_core;
-    }
-
-    ASSERT(*new_processor_id < 4);
-
-    // Add thread to new core's scheduler
-    auto* next_scheduler = &Core::System::GetInstance().Scheduler(*new_processor_id);
-
-    if (*new_processor_id != processor_id) {
-        // Remove thread from previous core's scheduler
-        scheduler->RemoveThread(this);
-        next_scheduler->AddThread(this, current_priority);
-    }
-
-    processor_id = *new_processor_id;
-
-    // If the thread was ready, unschedule from the previous core and schedule on the new core
-    scheduler->UnscheduleThread(this, current_priority);
-    next_scheduler->ScheduleThread(this, current_priority);
-
-    // Change thread's scheduler
-    scheduler = next_scheduler;
-
-    Core::System::GetInstance().CpuCore(processor_id).PrepareReschedule();
+    ChangeScheduler();
 }
 
 /**
@@ -364,42 +335,45 @@ void Thread::UpdatePriority() {
 void Thread::ChangeCore(u32 core, u64 mask) {
     ideal_core = core;
     affinity_mask = mask;
+    ChangeScheduler();
+}
 
+void Thread::ChangeScheduler() {
     if (status != ThreadStatus::Ready) {
         return;
     }
 
+    auto& system = Core::System::GetInstance();
     std::optional<s32> new_processor_id{GetNextProcessorId(affinity_mask)};
 
     if (!new_processor_id) {
         new_processor_id = processor_id;
     }
-    if (ideal_core != -1 &&
-        Core::System::GetInstance().Scheduler(ideal_core).GetCurrentThread() == nullptr) {
+    if (ideal_core != -1 && system.Scheduler(ideal_core).GetCurrentThread() == nullptr) {
         new_processor_id = ideal_core;
     }
 
     ASSERT(*new_processor_id < 4);
 
     // Add thread to new core's scheduler
-    auto* next_scheduler = &Core::System::GetInstance().Scheduler(*new_processor_id);
+    auto& next_scheduler = system.Scheduler(*new_processor_id);
 
     if (*new_processor_id != processor_id) {
         // Remove thread from previous core's scheduler
         scheduler->RemoveThread(this);
-        next_scheduler->AddThread(this, current_priority);
+        next_scheduler.AddThread(this, current_priority);
     }
 
     processor_id = *new_processor_id;
 
     // If the thread was ready, unschedule from the previous core and schedule on the new core
     scheduler->UnscheduleThread(this, current_priority);
-    next_scheduler->ScheduleThread(this, current_priority);
+    next_scheduler.ScheduleThread(this, current_priority);
 
     // Change thread's scheduler
-    scheduler = next_scheduler;
+    scheduler = &next_scheduler;
 
-    Core::System::GetInstance().CpuCore(processor_id).PrepareReschedule();
+    system.CpuCore(processor_id).PrepareReschedule();
 }
 
 bool Thread::AllWaitObjectsReady() {
diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h
index 4a6e11239..d384d50db 100644
--- a/src/core/hle/kernel/thread.h
+++ b/src/core/hle/kernel/thread.h
@@ -374,6 +374,8 @@ private:
     explicit Thread(KernelCore& kernel);
     ~Thread() override;
 
+    void ChangeScheduler();
+
     Core::ARM_Interface::ThreadContext context{};
 
     u32 thread_id = 0;
diff --git a/src/core/hle/kernel/vm_manager.cpp b/src/core/hle/kernel/vm_manager.cpp
index 1a92c8f70..ec7fd6150 100644
--- a/src/core/hle/kernel/vm_manager.cpp
+++ b/src/core/hle/kernel/vm_manager.cpp
@@ -243,6 +243,85 @@ ResultCode VMManager::ReprotectRange(VAddr target, u64 size, VMAPermission new_p
     return RESULT_SUCCESS;
 }
 
+ResultVal<VAddr> VMManager::HeapAllocate(VAddr target, u64 size, VMAPermission perms) {
+    if (target < GetHeapRegionBaseAddress() || target + size > GetHeapRegionEndAddress() ||
+        target + size < target) {
+        return ERR_INVALID_ADDRESS;
+    }
+
+    if (heap_memory == nullptr) {
+        // Initialize heap
+        heap_memory = std::make_shared<std::vector<u8>>();
+        heap_start = heap_end = target;
+    } else {
+        UnmapRange(heap_start, heap_end - heap_start);
+    }
+
+    // If necessary, expand backing vector to cover new heap extents.
+    if (target < heap_start) {
+        heap_memory->insert(begin(*heap_memory), heap_start - target, 0);
+        heap_start = target;
+        RefreshMemoryBlockMappings(heap_memory.get());
+    }
+    if (target + size > heap_end) {
+        heap_memory->insert(end(*heap_memory), (target + size) - heap_end, 0);
+        heap_end = target + size;
+        RefreshMemoryBlockMappings(heap_memory.get());
+    }
+    ASSERT(heap_end - heap_start == heap_memory->size());
+
+    CASCADE_RESULT(auto vma, MapMemoryBlock(target, heap_memory, target - heap_start, size,
+                                            MemoryState::Heap));
+    Reprotect(vma, perms);
+
+    heap_used = size;
+
+    return MakeResult<VAddr>(heap_end - size);
+}
+
+ResultCode VMManager::HeapFree(VAddr target, u64 size) {
+    if (target < GetHeapRegionBaseAddress() || target + size > GetHeapRegionEndAddress() ||
+        target + size < target) {
+        return ERR_INVALID_ADDRESS;
+    }
+
+    if (size == 0) {
+        return RESULT_SUCCESS;
+    }
+
+    const ResultCode result = UnmapRange(target, size);
+    if (result.IsError()) {
+        return result;
+    }
+
+    heap_used -= size;
+    return RESULT_SUCCESS;
+}
+
+ResultCode VMManager::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
+    const auto vma = FindVMA(src_addr);
+
+    ASSERT_MSG(vma != vma_map.end(), "Invalid memory address");
+    ASSERT_MSG(vma->second.backing_block, "Backing block doesn't exist for address");
+
+    // The returned VMA might be a bigger one encompassing the desired address.
+    const auto vma_offset = src_addr - vma->first;
+    ASSERT_MSG(vma_offset + size <= vma->second.size,
+               "Shared memory exceeds bounds of mapped block");
+
+    const std::shared_ptr<std::vector<u8>>& backing_block = vma->second.backing_block;
+    const std::size_t backing_block_offset = vma->second.offset + vma_offset;
+
+    CASCADE_RESULT(auto new_vma, MapMemoryBlock(dst_addr, backing_block, backing_block_offset, size,
+                                                MemoryState::Mapped));
+    // Protect mirror with permissions from old region
+    Reprotect(new_vma, vma->second.permissions);
+    // Remove permissions from old region
+    Reprotect(vma, VMAPermission::None);
+
+    return RESULT_SUCCESS;
+}
+
 void VMManager::RefreshMemoryBlockMappings(const std::vector<u8>* block) {
     // If this ever proves to have a noticeable performance impact, allow users of the function to
     // specify a specific range of addresses to limit the scan to.
@@ -495,8 +574,7 @@ u64 VMManager::GetTotalMemoryUsage() const {
 }
 
 u64 VMManager::GetTotalHeapUsage() const {
-    LOG_WARNING(Kernel, "(STUBBED) called");
-    return 0x0;
+    return heap_used;
 }
 
 VAddr VMManager::GetAddressSpaceBaseAddress() const {
diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h
index 2447cbb8f..248cc46dc 100644
--- a/src/core/hle/kernel/vm_manager.h
+++ b/src/core/hle/kernel/vm_manager.h
@@ -186,6 +186,11 @@ public:
     /// Changes the permissions of a range of addresses, splitting VMAs as necessary.
     ResultCode ReprotectRange(VAddr target, u64 size, VMAPermission new_perms);
 
+    ResultVal<VAddr> HeapAllocate(VAddr target, u64 size, VMAPermission perms);
+    ResultCode HeapFree(VAddr target, u64 size);
+
+    ResultCode MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size);
+
     /**
      * Scans all VMAs and updates the page table range of any that use the given vector as backing
      * memory. This should be called after any operation that causes reallocation of the vector.
@@ -343,5 +348,15 @@ private:
 
     VAddr tls_io_region_base = 0;
     VAddr tls_io_region_end = 0;
+
+    // Memory used to back the allocations in the regular heap. A single vector is used to cover
+    // the entire virtual address space extents that bound the allocations, including any holes.
+    // This makes deallocation and reallocation of holes fast and keeps process memory contiguous
+    // in the emulator address space, allowing Memory::GetPointer to be reasonably safe.
+    std::shared_ptr<std::vector<u8>> heap_memory;
+    // The left/right bounds of the address space covered by heap_memory.
+    VAddr heap_start = 0;
+    VAddr heap_end = 0;
+    u64 heap_used = 0;
 };
 } // namespace Kernel
diff --git a/src/core/hle/result.h b/src/core/hle/result.h
index c6b18cfba..bfb77cc31 100644
--- a/src/core/hle/result.h
+++ b/src/core/hle/result.h
@@ -19,8 +19,6 @@
 enum class ErrorDescription : u32 {
     Success = 0,
     RemoteProcessDead = 301,
-    InvalidOffset = 6061,
-    InvalidLength = 6062,
 };
 
 /**
diff --git a/src/core/hle/service/acc/acc.cpp b/src/core/hle/service/acc/acc.cpp
index 8318eff5f..c629f9357 100644
--- a/src/core/hle/service/acc/acc.cpp
+++ b/src/core/hle/service/acc/acc.cpp
@@ -252,8 +252,10 @@ void Module::Interface::TrySelectUserWithoutInteraction(Kernel::HLERequestContex
         rb.PushRaw<u128>(INVALID_UUID);
         return;
     }
-    auto user_list = profile_manager->GetAllUsers();
-    if (user_list.empty()) {
+
+    const auto user_list = profile_manager->GetAllUsers();
+    if (std::all_of(user_list.begin(), user_list.end(),
+                    [](const auto& user) { return user.uuid == INVALID_UUID; })) {
         rb.Push(ResultCode(-1)); // TODO(ogniK): Find the correct error code
         rb.PushRaw<u128>(INVALID_UUID);
         return;
diff --git a/src/core/hle/service/acc/profile_manager.cpp b/src/core/hle/service/acc/profile_manager.cpp
index c08394e4c..968263846 100644
--- a/src/core/hle/service/acc/profile_manager.cpp
+++ b/src/core/hle/service/acc/profile_manager.cpp
@@ -2,8 +2,11 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <cstring>
 #include <random>
 
+#include <fmt/format.h>
+
 #include "common/file_util.h"
 #include "core/hle/service/acc/profile_manager.h"
 #include "core/settings.h"
@@ -39,6 +42,19 @@ UUID UUID::Generate() {
     return UUID{distribution(gen), distribution(gen)};
 }
 
+std::string UUID::Format() const {
+    return fmt::format("0x{:016X}{:016X}", uuid[1], uuid[0]);
+}
+
+std::string UUID::FormatSwitch() const {
+    std::array<u8, 16> s{};
+    std::memcpy(s.data(), uuid.data(), sizeof(u128));
+    return fmt::format("{:02x}{:02x}{:02x}{:02x}-{:02x}{:02x}-{:02x}{:02x}-{:02x}{:02x}-{:02x}{"
+                       ":02x}{:02x}{:02x}{:02x}{:02x}",
+                       s[0], s[1], s[2], s[3], s[4], s[5], s[6], s[7], s[8], s[9], s[10], s[11],
+                       s[12], s[13], s[14], s[15]);
+}
+
 ProfileManager::ProfileManager() {
     ParseUserSaveFile();
 
@@ -325,11 +341,12 @@ void ProfileManager::ParseUserSaveFile() {
         return;
     }
 
-    for (std::size_t i = 0; i < MAX_USERS; ++i) {
-        const auto& user = data.users[i];
+    for (const auto& user : data.users) {
+        if (user.uuid == UUID(INVALID_UUID)) {
+            continue;
+        }
 
-        if (user.uuid != UUID(INVALID_UUID))
-            AddUser({user.uuid, user.username, user.timestamp, {}, false});
+        AddUser({user.uuid, user.username, user.timestamp, {}, false});
     }
 
     std::stable_partition(profiles.begin(), profiles.end(),
diff --git a/src/core/hle/service/acc/profile_manager.h b/src/core/hle/service/acc/profile_manager.h
index 747c46c20..d2d8e6c6b 100644
--- a/src/core/hle/service/acc/profile_manager.h
+++ b/src/core/hle/service/acc/profile_manager.h
@@ -42,18 +42,9 @@ struct UUID {
     void Invalidate() {
         uuid = INVALID_UUID;
     }
-    std::string Format() const {
-        return fmt::format("0x{:016X}{:016X}", uuid[1], uuid[0]);
-    }
 
-    std::string FormatSwitch() const {
-        std::array<u8, 16> s{};
-        std::memcpy(s.data(), uuid.data(), sizeof(u128));
-        return fmt::format("{:02x}{:02x}{:02x}{:02x}-{:02x}{:02x}-{:02x}{:02x}-{:02x}{:02x}-{:02x}{"
-                           ":02x}{:02x}{:02x}{:02x}{:02x}",
-                           s[0], s[1], s[2], s[3], s[4], s[5], s[6], s[7], s[8], s[9], s[10], s[11],
-                           s[12], s[13], s[14], s[15]);
-    }
+    std::string Format() const;
+    std::string FormatSwitch() const;
 };
 static_assert(sizeof(UUID) == 16, "UUID is an invalid size!");
 
diff --git a/src/core/hle/service/audio/audren_u.cpp b/src/core/hle/service/audio/audren_u.cpp
index fac6785a5..d3ea57ea7 100644
--- a/src/core/hle/service/audio/audren_u.cpp
+++ b/src/core/hle/service/audio/audren_u.cpp
@@ -28,13 +28,13 @@ public:
             {1, &IAudioRenderer::GetSampleCount, "GetSampleCount"},
             {2, &IAudioRenderer::GetMixBufferCount, "GetMixBufferCount"},
             {3, &IAudioRenderer::GetState, "GetState"},
-            {4, &IAudioRenderer::RequestUpdate, "RequestUpdate"},
+            {4, &IAudioRenderer::RequestUpdateImpl, "RequestUpdate"},
             {5, &IAudioRenderer::Start, "Start"},
             {6, &IAudioRenderer::Stop, "Stop"},
             {7, &IAudioRenderer::QuerySystemEvent, "QuerySystemEvent"},
-            {8, nullptr, "SetRenderingTimeLimit"},
-            {9, nullptr, "GetRenderingTimeLimit"},
-            {10, nullptr, "RequestUpdateAuto"},
+            {8, &IAudioRenderer::SetRenderingTimeLimit, "SetRenderingTimeLimit"},
+            {9, &IAudioRenderer::GetRenderingTimeLimit, "GetRenderingTimeLimit"},
+            {10, &IAudioRenderer::RequestUpdateImpl, "RequestUpdateAuto"},
             {11, nullptr, "ExecuteAudioRendererRendering"},
         };
         // clang-format on
@@ -79,7 +79,7 @@ private:
         LOG_DEBUG(Service_Audio, "called");
     }
 
-    void RequestUpdate(Kernel::HLERequestContext& ctx) {
+    void RequestUpdateImpl(Kernel::HLERequestContext& ctx) {
         ctx.WriteBuffer(renderer->UpdateAudioRenderer(ctx.ReadBuffer()));
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
@@ -110,8 +110,29 @@ private:
         LOG_WARNING(Service_Audio, "(STUBBED) called");
     }
 
+    void SetRenderingTimeLimit(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        rendering_time_limit_percent = rp.Pop<u32>();
+        ASSERT(rendering_time_limit_percent >= 0 && rendering_time_limit_percent <= 100);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+
+        LOG_DEBUG(Service_Audio, "called. rendering_time_limit_percent={}",
+                  rendering_time_limit_percent);
+    }
+
+    void GetRenderingTimeLimit(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_Audio, "called");
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push(rendering_time_limit_percent);
+    }
+
     Kernel::SharedPtr<Kernel::Event> system_event;
     std::unique_ptr<AudioCore::AudioRenderer> renderer;
+    u32 rendering_time_limit_percent = 100;
 };
 
 class IAudioDevice final : public ServiceFramework<IAudioDevice> {
diff --git a/src/core/hle/service/audio/hwopus.cpp b/src/core/hle/service/audio/hwopus.cpp
index 783c39503..763e619a4 100644
--- a/src/core/hle/service/audio/hwopus.cpp
+++ b/src/core/hle/service/audio/hwopus.cpp
@@ -77,8 +77,8 @@ private:
         IPC::ResponseBuilder rb{ctx, 6};
         rb.Push(RESULT_SUCCESS);
         rb.Push<u32>(consumed);
-        rb.Push<u64>(performance);
         rb.Push<u32>(sample_count);
+        rb.Push<u64>(performance);
         ctx.WriteBuffer(samples.data(), samples.size() * sizeof(s16));
     }
 
diff --git a/src/core/hle/service/btdrv/btdrv.cpp b/src/core/hle/service/btdrv/btdrv.cpp
index d0a15cc4c..f3bde6d0d 100644
--- a/src/core/hle/service/btdrv/btdrv.cpp
+++ b/src/core/hle/service/btdrv/btdrv.cpp
@@ -2,12 +2,49 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include "common/logging/log.h"
+#include "core/hle/ipc_helpers.h"
+#include "core/hle/kernel/event.h"
+#include "core/hle/kernel/hle_ipc.h"
 #include "core/hle/service/btdrv/btdrv.h"
 #include "core/hle/service/service.h"
 #include "core/hle/service/sm/sm.h"
 
 namespace Service::BtDrv {
 
+class Bt final : public ServiceFramework<Bt> {
+public:
+    explicit Bt() : ServiceFramework{"bt"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "Unknown0"},
+            {1, nullptr, "Unknown1"},
+            {2, nullptr, "Unknown2"},
+            {3, nullptr, "Unknown3"},
+            {4, nullptr, "Unknown4"},
+            {5, nullptr, "Unknown5"},
+            {6, nullptr, "Unknown6"},
+            {7, nullptr, "Unknown7"},
+            {8, nullptr, "Unknown8"},
+            {9, &Bt::RegisterEvent, "RegisterEvent"},
+        };
+        // clang-format on
+        RegisterHandlers(functions);
+    }
+
+private:
+    void RegisterEvent(Kernel::HLERequestContext& ctx) {
+        auto& kernel = Core::System::GetInstance().Kernel();
+        register_event =
+            Kernel::Event::Create(kernel, Kernel::ResetType::OneShot, "BT:RegisterEvent");
+        IPC::ResponseBuilder rb{ctx, 2, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushCopyObjects(register_event);
+        LOG_WARNING(Service_BTM, "(STUBBED) called");
+    }
+    Kernel::SharedPtr<Kernel::Event> register_event;
+};
+
 class BtDrv final : public ServiceFramework<BtDrv> {
 public:
     explicit BtDrv() : ServiceFramework{"btdrv"} {
@@ -67,6 +104,7 @@ public:
 
 void InstallInterfaces(SM::ServiceManager& sm) {
     std::make_shared<BtDrv>()->InstallAsService(sm);
+    std::make_shared<Bt>()->InstallAsService(sm);
 }
 
 } // namespace Service::BtDrv
diff --git a/src/core/hle/service/btm/btm.cpp b/src/core/hle/service/btm/btm.cpp
index b949bfabd..a02f6b53a 100644
--- a/src/core/hle/service/btm/btm.cpp
+++ b/src/core/hle/service/btm/btm.cpp
@@ -6,13 +6,118 @@
 
 #include "common/logging/log.h"
 #include "core/hle/ipc_helpers.h"
+#include "core/hle/kernel/event.h"
 #include "core/hle/kernel/hle_ipc.h"
 #include "core/hle/service/btm/btm.h"
 #include "core/hle/service/service.h"
-#include "core/hle/service/sm/sm.h"
 
 namespace Service::BTM {
 
+class IBtmUserCore final : public ServiceFramework<IBtmUserCore> {
+public:
+    explicit IBtmUserCore() : ServiceFramework{"IBtmUserCore"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IBtmUserCore::GetScanEvent, "GetScanEvent"},
+            {1, nullptr, "Unknown1"},
+            {2, nullptr, "Unknown2"},
+            {3, nullptr, "Unknown3"},
+            {4, nullptr, "Unknown4"},
+            {5, nullptr, "Unknown5"},
+            {6, nullptr, "Unknown6"},
+            {7, nullptr, "Unknown7"},
+            {8, nullptr, "Unknown8"},
+            {9, nullptr, "Unknown9"},
+            {10, nullptr, "Unknown10"},
+            {17, &IBtmUserCore::GetConnectionEvent, "GetConnectionEvent"},
+            {18, nullptr, "Unknown18"},
+            {19, nullptr, "Unknown19"},
+            {20, nullptr, "Unknown20"},
+            {21, nullptr, "Unknown21"},
+            {22, nullptr, "Unknown22"},
+            {23, nullptr, "Unknown23"},
+            {24, nullptr, "Unknown24"},
+            {25, nullptr, "Unknown25"},
+            {26, &IBtmUserCore::GetDiscoveryEvent, "AcquireBleServiceDiscoveryEventImpl"},
+            {27, nullptr, "Unknown27"},
+            {28, nullptr, "Unknown28"},
+            {29, nullptr, "Unknown29"},
+            {30, nullptr, "Unknown30"},
+            {31, nullptr, "Unknown31"},
+            {32, nullptr, "Unknown32"},
+            {33, &IBtmUserCore::GetConfigEvent, "GetConfigEvent"},
+            {34, nullptr, "Unknown34"},
+            {35, nullptr, "Unknown35"},
+            {36, nullptr, "Unknown36"},
+            {37, nullptr, "Unknown37"},
+        };
+        // clang-format on
+        RegisterHandlers(functions);
+    }
+
+private:
+    void GetScanEvent(Kernel::HLERequestContext& ctx) {
+        auto& kernel = Core::System::GetInstance().Kernel();
+        scan_event =
+            Kernel::Event::Create(kernel, Kernel::ResetType::OneShot, "IBtmUserCore:ScanEvent");
+        IPC::ResponseBuilder rb{ctx, 2, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushCopyObjects(scan_event);
+        LOG_WARNING(Service_BTM, "(STUBBED) called");
+    }
+    void GetConnectionEvent(Kernel::HLERequestContext& ctx) {
+        auto& kernel = Core::System::GetInstance().Kernel();
+        connection_event = Kernel::Event::Create(kernel, Kernel::ResetType::OneShot,
+                                                 "IBtmUserCore:ConnectionEvent");
+        IPC::ResponseBuilder rb{ctx, 2, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushCopyObjects(connection_event);
+        LOG_WARNING(Service_BTM, "(STUBBED) called");
+    }
+    void GetDiscoveryEvent(Kernel::HLERequestContext& ctx) {
+        auto& kernel = Core::System::GetInstance().Kernel();
+        service_discovery =
+            Kernel::Event::Create(kernel, Kernel::ResetType::OneShot, "IBtmUserCore:Discovery");
+        IPC::ResponseBuilder rb{ctx, 2, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushCopyObjects(service_discovery);
+        LOG_WARNING(Service_BTM, "(STUBBED) called");
+    }
+    void GetConfigEvent(Kernel::HLERequestContext& ctx) {
+        auto& kernel = Core::System::GetInstance().Kernel();
+        config_event =
+            Kernel::Event::Create(kernel, Kernel::ResetType::OneShot, "IBtmUserCore:ConfigEvent");
+        IPC::ResponseBuilder rb{ctx, 2, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushCopyObjects(config_event);
+        LOG_WARNING(Service_BTM, "(STUBBED) called");
+    }
+    Kernel::SharedPtr<Kernel::Event> scan_event;
+    Kernel::SharedPtr<Kernel::Event> connection_event;
+    Kernel::SharedPtr<Kernel::Event> service_discovery;
+    Kernel::SharedPtr<Kernel::Event> config_event;
+};
+
+class BTM_USR final : public ServiceFramework<BTM_USR> {
+public:
+    explicit BTM_USR() : ServiceFramework{"btm:u"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &BTM_USR::GetCoreImpl, "GetCoreImpl"},
+        };
+        // clang-format on
+        RegisterHandlers(functions);
+    }
+
+private:
+    void GetCoreImpl(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface<IBtmUserCore>();
+        LOG_DEBUG(Service_BTM, "called");
+    }
+};
+
 class BTM final : public ServiceFramework<BTM> {
 public:
     explicit BTM() : ServiceFramework{"btm"} {
@@ -116,6 +221,7 @@ void InstallInterfaces(SM::ServiceManager& sm) {
     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);
 }
 
 } // namespace Service::BTM
diff --git a/src/core/hle/service/filesystem/filesystem.cpp b/src/core/hle/service/filesystem/filesystem.cpp
index e32a7c48e..5d6294016 100644
--- a/src/core/hle/service/filesystem/filesystem.cpp
+++ b/src/core/hle/service/filesystem/filesystem.cpp
@@ -303,25 +303,42 @@ ResultVal<FileSys::VirtualDir> OpenSaveData(FileSys::SaveDataSpaceId space,
               static_cast<u8>(space), save_struct.DebugInfo());
 
     if (save_data_factory == nullptr) {
-        return ResultCode(ErrorModule::FS, FileSys::ErrCodes::TitleNotFound);
+        return FileSys::ERROR_ENTITY_NOT_FOUND;
     }
 
     return save_data_factory->Open(space, save_struct);
 }
 
+ResultVal<FileSys::VirtualDir> OpenSaveDataSpace(FileSys::SaveDataSpaceId space) {
+    LOG_TRACE(Service_FS, "Opening Save Data Space for space_id={:01X}", static_cast<u8>(space));
+
+    if (save_data_factory == nullptr) {
+        return FileSys::ERROR_ENTITY_NOT_FOUND;
+    }
+
+    return MakeResult(save_data_factory->GetSaveDataSpaceDirectory(space));
+}
+
 ResultVal<FileSys::VirtualDir> OpenSDMC() {
     LOG_TRACE(Service_FS, "Opening SDMC");
 
     if (sdmc_factory == nullptr) {
-        return ResultCode(ErrorModule::FS, FileSys::ErrCodes::SdCardNotFound);
+        return FileSys::ERROR_SD_CARD_NOT_FOUND;
     }
 
     return sdmc_factory->Open();
 }
 
-std::unique_ptr<FileSys::RegisteredCacheUnion> GetUnionContents() {
-    return std::make_unique<FileSys::RegisteredCacheUnion>(std::vector<FileSys::RegisteredCache*>{
-        GetSystemNANDContents(), GetUserNANDContents(), GetSDMCContents()});
+std::shared_ptr<FileSys::RegisteredCacheUnion> registered_cache_union;
+
+std::shared_ptr<FileSys::RegisteredCacheUnion> GetUnionContents() {
+    if (registered_cache_union == nullptr) {
+        registered_cache_union =
+            std::make_shared<FileSys::RegisteredCacheUnion>(std::vector<FileSys::RegisteredCache*>{
+                GetSystemNANDContents(), GetUserNANDContents(), GetSDMCContents()});
+    }
+
+    return registered_cache_union;
 }
 
 FileSys::RegisteredCache* GetSystemNANDContents() {
@@ -360,6 +377,15 @@ FileSys::VirtualDir GetModificationLoadRoot(u64 title_id) {
     return bis_factory->GetModificationLoadRoot(title_id);
 }
 
+FileSys::VirtualDir GetModificationDumpRoot(u64 title_id) {
+    LOG_TRACE(Service_FS, "Opening mod dump root for tid={:016X}", title_id);
+
+    if (bis_factory == nullptr)
+        return nullptr;
+
+    return bis_factory->GetModificationDumpRoot(title_id);
+}
+
 void CreateFactories(FileSys::VfsFilesystem& vfs, bool overwrite) {
     if (overwrite) {
         bis_factory = nullptr;
@@ -373,13 +399,21 @@ void CreateFactories(FileSys::VfsFilesystem& vfs, bool overwrite) {
                                           FileSys::Mode::ReadWrite);
     auto load_directory = vfs.OpenDirectory(FileUtil::GetUserPath(FileUtil::UserPath::LoadDir),
                                             FileSys::Mode::ReadWrite);
+    auto dump_directory = vfs.OpenDirectory(FileUtil::GetUserPath(FileUtil::UserPath::DumpDir),
+                                            FileSys::Mode::ReadWrite);
 
-    if (bis_factory == nullptr)
-        bis_factory = std::make_unique<FileSys::BISFactory>(nand_directory, load_directory);
-    if (save_data_factory == nullptr)
+    if (bis_factory == nullptr) {
+        bis_factory =
+            std::make_unique<FileSys::BISFactory>(nand_directory, load_directory, dump_directory);
+    }
+
+    if (save_data_factory == nullptr) {
         save_data_factory = std::make_unique<FileSys::SaveDataFactory>(std::move(nand_directory));
-    if (sdmc_factory == nullptr)
+    }
+
+    if (sdmc_factory == nullptr) {
         sdmc_factory = std::make_unique<FileSys::SDMCFactory>(std::move(sd_directory));
+    }
 }
 
 void InstallInterfaces(SM::ServiceManager& service_manager, FileSys::VfsFilesystem& vfs) {
diff --git a/src/core/hle/service/filesystem/filesystem.h b/src/core/hle/service/filesystem/filesystem.h
index 6ca5c5636..ff9182e84 100644
--- a/src/core/hle/service/filesystem/filesystem.h
+++ b/src/core/hle/service/filesystem/filesystem.h
@@ -45,15 +45,17 @@ ResultVal<FileSys::VirtualFile> OpenRomFS(u64 title_id, FileSys::StorageId stora
                                           FileSys::ContentRecordType type);
 ResultVal<FileSys::VirtualDir> OpenSaveData(FileSys::SaveDataSpaceId space,
                                             FileSys::SaveDataDescriptor save_struct);
+ResultVal<FileSys::VirtualDir> OpenSaveDataSpace(FileSys::SaveDataSpaceId space);
 ResultVal<FileSys::VirtualDir> OpenSDMC();
 
-std::unique_ptr<FileSys::RegisteredCacheUnion> GetUnionContents();
+std::shared_ptr<FileSys::RegisteredCacheUnion> GetUnionContents();
 
 FileSys::RegisteredCache* GetSystemNANDContents();
 FileSys::RegisteredCache* GetUserNANDContents();
 FileSys::RegisteredCache* GetSDMCContents();
 
 FileSys::VirtualDir GetModificationLoadRoot(u64 title_id);
+FileSys::VirtualDir GetModificationDumpRoot(u64 title_id);
 
 // Creates the SaveData, SDMC, and BIS Factories. Should be called once and before any function
 // above is called.
diff --git a/src/core/hle/service/filesystem/fsp_srv.cpp b/src/core/hle/service/filesystem/fsp_srv.cpp
index c1c83a11d..038dc80b1 100644
--- a/src/core/hle/service/filesystem/fsp_srv.cpp
+++ b/src/core/hle/service/filesystem/fsp_srv.cpp
@@ -11,6 +11,7 @@
 
 #include "common/assert.h"
 #include "common/common_types.h"
+#include "common/hex_util.h"
 #include "common/logging/log.h"
 #include "common/string_util.h"
 #include "core/file_sys/directory.h"
@@ -62,12 +63,12 @@ private:
         // Error checking
         if (length < 0) {
             IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultCode(ErrorModule::FS, ErrorDescription::InvalidLength));
+            rb.Push(FileSys::ERROR_INVALID_SIZE);
             return;
         }
         if (offset < 0) {
             IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultCode(ErrorModule::FS, ErrorDescription::InvalidOffset));
+            rb.Push(FileSys::ERROR_INVALID_OFFSET);
             return;
         }
 
@@ -107,12 +108,12 @@ private:
         // Error checking
         if (length < 0) {
             IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultCode(ErrorModule::FS, ErrorDescription::InvalidLength));
+            rb.Push(FileSys::ERROR_INVALID_SIZE);
             return;
         }
         if (offset < 0) {
             IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultCode(ErrorModule::FS, ErrorDescription::InvalidOffset));
+            rb.Push(FileSys::ERROR_INVALID_OFFSET);
             return;
         }
 
@@ -138,12 +139,12 @@ private:
         // Error checking
         if (length < 0) {
             IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultCode(ErrorModule::FS, ErrorDescription::InvalidLength));
+            rb.Push(FileSys::ERROR_INVALID_SIZE);
             return;
         }
         if (offset < 0) {
             IPC::ResponseBuilder rb{ctx, 2};
-            rb.Push(ResultCode(ErrorModule::FS, ErrorDescription::InvalidOffset));
+            rb.Push(FileSys::ERROR_INVALID_OFFSET);
             return;
         }
 
@@ -451,7 +452,147 @@ private:
     VfsDirectoryServiceWrapper backend;
 };
 
+class ISaveDataInfoReader final : public ServiceFramework<ISaveDataInfoReader> {
+public:
+    explicit ISaveDataInfoReader(FileSys::SaveDataSpaceId space)
+        : ServiceFramework("ISaveDataInfoReader") {
+        static const FunctionInfo functions[] = {
+            {0, &ISaveDataInfoReader::ReadSaveDataInfo, "ReadSaveDataInfo"},
+        };
+        RegisterHandlers(functions);
+
+        FindAllSaves(space);
+    }
+
+    void ReadSaveDataInfo(Kernel::HLERequestContext& ctx) {
+        // Calculate how many entries we can fit in the output buffer
+        const u64 count_entries = ctx.GetWriteBufferSize() / sizeof(SaveDataInfo);
+
+        // Cap at total number of entries.
+        const u64 actual_entries = std::min(count_entries, info.size() - next_entry_index);
+
+        // Determine data start and end
+        const auto* begin = reinterpret_cast<u8*>(info.data() + next_entry_index);
+        const auto* end = reinterpret_cast<u8*>(info.data() + next_entry_index + actual_entries);
+        const auto range_size = static_cast<std::size_t>(std::distance(begin, end));
+
+        next_entry_index += actual_entries;
+
+        // Write the data to memory
+        ctx.WriteBuffer(begin, range_size);
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u32>(static_cast<u32>(actual_entries));
+    }
+
+private:
+    static u64 stoull_be(std::string_view str) {
+        if (str.size() != 16)
+            return 0;
+
+        const auto bytes = Common::HexStringToArray<0x8>(str);
+        u64 out{};
+        std::memcpy(&out, bytes.data(), sizeof(u64));
+
+        return Common::swap64(out);
+    }
+
+    void FindAllSaves(FileSys::SaveDataSpaceId space) {
+        const auto save_root = OpenSaveDataSpace(space);
+        ASSERT(save_root.Succeeded());
+
+        for (const auto& type : (*save_root)->GetSubdirectories()) {
+            if (type->GetName() == "save") {
+                for (const auto& save_id : type->GetSubdirectories()) {
+                    for (const auto& user_id : save_id->GetSubdirectories()) {
+                        const auto save_id_numeric = stoull_be(save_id->GetName());
+                        auto user_id_numeric = Common::HexStringToArray<0x10>(user_id->GetName());
+                        std::reverse(user_id_numeric.begin(), user_id_numeric.end());
+
+                        if (save_id_numeric != 0) {
+                            // System Save Data
+                            info.emplace_back(SaveDataInfo{
+                                0,
+                                space,
+                                FileSys::SaveDataType::SystemSaveData,
+                                {},
+                                user_id_numeric,
+                                save_id_numeric,
+                                0,
+                                user_id->GetSize(),
+                                {},
+                            });
+
+                            continue;
+                        }
+
+                        for (const auto& title_id : user_id->GetSubdirectories()) {
+                            const auto device =
+                                std::all_of(user_id_numeric.begin(), user_id_numeric.end(),
+                                            [](u8 val) { return val == 0; });
+                            info.emplace_back(SaveDataInfo{
+                                0,
+                                space,
+                                device ? FileSys::SaveDataType::DeviceSaveData
+                                       : FileSys::SaveDataType::SaveData,
+                                {},
+                                user_id_numeric,
+                                save_id_numeric,
+                                stoull_be(title_id->GetName()),
+                                title_id->GetSize(),
+                                {},
+                            });
+                        }
+                    }
+                }
+            } else if (space == FileSys::SaveDataSpaceId::TemporaryStorage) {
+                // Temporary Storage
+                for (const auto& user_id : type->GetSubdirectories()) {
+                    for (const auto& title_id : user_id->GetSubdirectories()) {
+                        if (!title_id->GetFiles().empty() ||
+                            !title_id->GetSubdirectories().empty()) {
+                            auto user_id_numeric =
+                                Common::HexStringToArray<0x10>(user_id->GetName());
+                            std::reverse(user_id_numeric.begin(), user_id_numeric.end());
+
+                            info.emplace_back(SaveDataInfo{
+                                0,
+                                space,
+                                FileSys::SaveDataType::TemporaryStorage,
+                                {},
+                                user_id_numeric,
+                                stoull_be(type->GetName()),
+                                stoull_be(title_id->GetName()),
+                                title_id->GetSize(),
+                                {},
+                            });
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    struct SaveDataInfo {
+        u64_le save_id_unknown;
+        FileSys::SaveDataSpaceId space;
+        FileSys::SaveDataType type;
+        INSERT_PADDING_BYTES(0x6);
+        std::array<u8, 0x10> user_id;
+        u64_le save_id;
+        u64_le title_id;
+        u64_le save_image_size;
+        INSERT_PADDING_BYTES(0x28);
+    };
+    static_assert(sizeof(SaveDataInfo) == 0x60, "SaveDataInfo has incorrect size.");
+
+    std::vector<SaveDataInfo> info;
+    u64 next_entry_index = 0;
+};
+
 FSP_SRV::FSP_SRV() : ServiceFramework("fsp-srv") {
+    // clang-format off
     static const FunctionInfo functions[] = {
         {0, nullptr, "MountContent"},
         {1, &FSP_SRV::Initialize, "Initialize"},
@@ -485,7 +626,7 @@ FSP_SRV::FSP_SRV() : ServiceFramework("fsp-srv") {
         {58, nullptr, "ReadSaveDataFileSystemExtraData"},
         {59, nullptr, "WriteSaveDataFileSystemExtraData"},
         {60, nullptr, "OpenSaveDataInfoReader"},
-        {61, nullptr, "OpenSaveDataInfoReaderBySaveDataSpaceId"},
+        {61, &FSP_SRV::OpenSaveDataInfoReaderBySaveDataSpaceId, "OpenSaveDataInfoReaderBySaveDataSpaceId"},
         {62, nullptr, "OpenCacheStorageList"},
         {64, nullptr, "OpenSaveDataInternalStorageFileSystem"},
         {65, nullptr, "UpdateSaveDataMacForDebug"},
@@ -544,6 +685,7 @@ FSP_SRV::FSP_SRV() : ServiceFramework("fsp-srv") {
         {1009, nullptr, "GetAndClearMemoryReportInfo"},
         {1100, nullptr, "OverrideSaveDataTransferTokenSignVerificationKey"},
     };
+    // clang-format on
     RegisterHandlers(functions);
 }
 
@@ -602,7 +744,7 @@ void FSP_SRV::MountSaveData(Kernel::HLERequestContext& ctx) {
 
     if (dir.Failed()) {
         IPC::ResponseBuilder rb{ctx, 2, 0, 0};
-        rb.Push(ResultCode(ErrorModule::FS, FileSys::ErrCodes::TitleNotFound));
+        rb.Push(FileSys::ERROR_ENTITY_NOT_FOUND);
         return;
     }
 
@@ -618,6 +760,15 @@ void FSP_SRV::OpenReadOnlySaveDataFileSystem(Kernel::HLERequestContext& ctx) {
     MountSaveData(ctx);
 }
 
+void FSP_SRV::OpenSaveDataInfoReaderBySaveDataSpaceId(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto space = rp.PopRaw<FileSys::SaveDataSpaceId>();
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface<ISaveDataInfoReader>(std::make_shared<ISaveDataInfoReader>(space));
+}
+
 void FSP_SRV::GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx) {
     LOG_WARNING(Service_FS, "(STUBBED) called");
 
@@ -685,7 +836,7 @@ void FSP_SRV::OpenRomStorage(Kernel::HLERequestContext& ctx) {
               static_cast<u8>(storage_id), title_id);
 
     IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultCode(ErrorModule::FS, FileSys::ErrCodes::TitleNotFound));
+    rb.Push(FileSys::ERROR_ENTITY_NOT_FOUND);
 }
 
 } // namespace Service::FileSystem
diff --git a/src/core/hle/service/filesystem/fsp_srv.h b/src/core/hle/service/filesystem/fsp_srv.h
index 4aa0358cb..e7abec0a3 100644
--- a/src/core/hle/service/filesystem/fsp_srv.h
+++ b/src/core/hle/service/filesystem/fsp_srv.h
@@ -25,6 +25,7 @@ private:
     void CreateSaveData(Kernel::HLERequestContext& ctx);
     void MountSaveData(Kernel::HLERequestContext& ctx);
     void OpenReadOnlySaveDataFileSystem(Kernel::HLERequestContext& ctx);
+    void OpenSaveDataInfoReaderBySaveDataSpaceId(Kernel::HLERequestContext& ctx);
     void GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx);
     void OpenDataStorageByCurrentProcess(Kernel::HLERequestContext& ctx);
     void OpenDataStorageByDataId(Kernel::HLERequestContext& ctx);
diff --git a/src/core/hle/service/hid/controllers/npad.cpp b/src/core/hle/service/hid/controllers/npad.cpp
index ff9b64be4..205e4fd14 100644
--- a/src/core/hle/service/hid/controllers/npad.cpp
+++ b/src/core/hle/service/hid/controllers/npad.cpp
@@ -40,6 +40,29 @@ enum class JoystickId : std::size_t {
     Joystick_Right,
 };
 
+static std::size_t NPadIdToIndex(u32 npad_id) {
+    switch (npad_id) {
+    case 0:
+    case 1:
+    case 2:
+    case 3:
+    case 4:
+    case 5:
+    case 6:
+    case 7:
+        return npad_id;
+    case 8:
+    case NPAD_HANDHELD:
+        return 8;
+    case 9:
+    case NPAD_UNKNOWN:
+        return 9;
+    default:
+        UNIMPLEMENTED_MSG("Unknown npad id {}", npad_id);
+        return 0;
+    }
+}
+
 Controller_NPad::Controller_NPad() = default;
 Controller_NPad::~Controller_NPad() = default;
 
@@ -288,10 +311,11 @@ void Controller_NPad::OnUpdate(u8* data, std::size_t data_len) {
         switch (controller_type) {
         case NPadControllerType::Handheld:
             handheld_entry.connection_status.raw = 0;
-            handheld_entry.connection_status.IsConnected.Assign(1);
-            if (!Settings::values.use_docked_mode) {
-                handheld_entry.connection_status.IsWired.Assign(1);
-            }
+            handheld_entry.connection_status.IsWired.Assign(1);
+            handheld_entry.connection_status.IsLeftJoyConnected.Assign(1);
+            handheld_entry.connection_status.IsRightJoyConnected.Assign(1);
+            handheld_entry.connection_status.IsLeftJoyWired.Assign(1);
+            handheld_entry.connection_status.IsRightJoyWired.Assign(1);
             handheld_entry.pad_states.raw = pad_state.raw;
             handheld_entry.l_stick = lstick_entry;
             handheld_entry.r_stick = rstick_entry;
@@ -310,6 +334,7 @@ void Controller_NPad::OnUpdate(u8* data, std::size_t data_len) {
             dual_entry.pad_states.raw = pad_state.raw;
             dual_entry.l_stick = lstick_entry;
             dual_entry.r_stick = rstick_entry;
+            break;
         case NPadControllerType::JoyLeft:
             left_entry.connection_status.raw = 0;
 
@@ -370,16 +395,30 @@ void Controller_NPad::SetSupportedNPadIdTypes(u8* data, std::size_t length) {
     supported_npad_id_types.clear();
     supported_npad_id_types.resize(length / sizeof(u32));
     std::memcpy(supported_npad_id_types.data(), data, length);
+    bool had_controller_update = false;
     for (std::size_t i = 0; i < connected_controllers.size(); i++) {
         auto& controller = connected_controllers[i];
         if (!controller.is_connected) {
             continue;
         }
         if (!IsControllerSupported(PREFERRED_CONTROLLER)) {
-            controller.type = DecideBestController(PREFERRED_CONTROLLER);
-            InitNewlyAddedControler(i);
+            const auto best_type = DecideBestController(PREFERRED_CONTROLLER);
+            const bool is_handheld = (best_type == NPadControllerType::Handheld ||
+                                      PREFERRED_CONTROLLER == NPadControllerType::Handheld);
+            if (is_handheld) {
+                controller.type = NPadControllerType::None;
+                controller.is_connected = false;
+                AddNewController(best_type);
+            } else {
+                controller.type = best_type;
+                InitNewlyAddedControler(i);
+            }
+            had_controller_update = true;
         }
     }
+    if (had_controller_update) {
+        styleset_changed_event->Signal();
+    }
 }
 
 void Controller_NPad::GetSupportedNpadIdTypes(u32* data, std::size_t max_length) {
@@ -457,15 +496,11 @@ void Controller_NPad::AddNewController(NPadControllerType controller) {
 }
 
 void Controller_NPad::ConnectNPad(u32 npad_id) {
-    if (npad_id >= connected_controllers.size())
-        return;
-    connected_controllers[npad_id].is_connected = true;
+    connected_controllers[NPadIdToIndex(npad_id)].is_connected = true;
 }
 
 void Controller_NPad::DisconnectNPad(u32 npad_id) {
-    if (npad_id >= connected_controllers.size())
-        return;
-    connected_controllers[npad_id].is_connected = false;
+    connected_controllers[NPadIdToIndex(npad_id)].is_connected = false;
 }
 
 Controller_NPad::LedPattern Controller_NPad::GetLedPattern(u32 npad_id) {
diff --git a/src/core/hle/service/hid/hid.cpp b/src/core/hle/service/hid/hid.cpp
index a45fd4954..39631b14f 100644
--- a/src/core/hle/service/hid/hid.cpp
+++ b/src/core/hle/service/hid/hid.cpp
@@ -286,10 +286,10 @@ public:
             {519, nullptr, "GetPalmaOperationResult"},
             {520, nullptr, "ReadPalmaPlayLog"},
             {521, nullptr, "ResetPalmaPlayLog"},
-            {522, nullptr, "SetIsPalmaAllConnectable"},
+            {522, &Hid::SetIsPalmaAllConnectable, "SetIsPalmaAllConnectable"},
             {523, nullptr, "SetIsPalmaPairedConnectable"},
             {524, nullptr, "PairPalma"},
-            {525, nullptr, "SetPalmaBoostMode"},
+            {525, &Hid::SetPalmaBoostMode, "SetPalmaBoostMode"},
             {1000, nullptr, "SetNpadCommunicationMode"},
             {1001, nullptr, "GetNpadCommunicationMode"},
         };
@@ -596,6 +596,18 @@ private:
         rb.Push(RESULT_SUCCESS);
         LOG_WARNING(Service_HID, "(STUBBED) called");
     }
+
+    void SetIsPalmaAllConnectable(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+        LOG_WARNING(Service_HID, "(STUBBED) called");
+    }
+
+    void SetPalmaBoostMode(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+        LOG_WARNING(Service_HID, "(STUBBED) called");
+    }
 };
 
 class HidDbg final : public ServiceFramework<HidDbg> {
diff --git a/src/core/hle/service/nfp/nfp.cpp b/src/core/hle/service/nfp/nfp.cpp
index c1af878fe..1d6e7756f 100644
--- a/src/core/hle/service/nfp/nfp.cpp
+++ b/src/core/hle/service/nfp/nfp.cpp
@@ -212,7 +212,7 @@ private:
         IPC::ResponseBuilder rb{ctx, 2};
         auto amiibo = nfp_interface.GetAmiiboBuffer();
         TagInfo tag_info{};
-        std::memcpy(tag_info.uuid.data(), amiibo.uuid.data(), sizeof(tag_info.uuid.size()));
+        tag_info.uuid = amiibo.uuid;
         tag_info.uuid_length = static_cast<u8>(tag_info.uuid.size());
 
         tag_info.protocol = 1; // TODO(ogniK): Figure out actual values
diff --git a/src/core/hle/service/ns/ns.cpp b/src/core/hle/service/ns/ns.cpp
index 07c1381fe..1d2978f24 100644
--- a/src/core/hle/service/ns/ns.cpp
+++ b/src/core/hle/service/ns/ns.cpp
@@ -2,6 +2,9 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include "common/logging/log.h"
+#include "core/file_sys/control_metadata.h"
+#include "core/file_sys/patch_manager.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/hle_ipc.h"
 #include "core/hle/service/ns/ns.h"
@@ -118,7 +121,7 @@ public:
             {305, nullptr, "TerminateSystemApplet"},
             {306, nullptr, "LaunchOverlayApplet"},
             {307, nullptr, "TerminateOverlayApplet"},
-            {400, nullptr, "GetApplicationControlData"},
+            {400, &IApplicationManagerInterface::GetApplicationControlData, "GetApplicationControlData"},
             {401, nullptr, "InvalidateAllApplicationControlCache"},
             {402, nullptr, "RequestDownloadApplicationControlData"},
             {403, nullptr, "GetMaxApplicationControlCacheCount"},
@@ -243,6 +246,65 @@ public:
 
         RegisterHandlers(functions);
     }
+
+    void GetApplicationControlData(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto flag = rp.PopRaw<u64>();
+        LOG_DEBUG(Service_NS, "called with flag={:016X}", flag);
+
+        const auto title_id = rp.PopRaw<u64>();
+
+        const auto size = ctx.GetWriteBufferSize();
+
+        const FileSys::PatchManager pm{title_id};
+        const auto control = pm.GetControlMetadata();
+
+        std::vector<u8> out;
+
+        if (control.first != nullptr) {
+            if (size < 0x4000) {
+                LOG_ERROR(Service_NS,
+                          "output buffer is too small! (actual={:016X}, expected_min=0x4000)",
+                          size);
+                IPC::ResponseBuilder rb{ctx, 2};
+                // TODO(DarkLordZach): Find a better error code for this.
+                rb.Push(ResultCode(-1));
+                return;
+            }
+
+            out.resize(0x4000);
+            const auto bytes = control.first->GetRawBytes();
+            std::memcpy(out.data(), bytes.data(), bytes.size());
+        } else {
+            LOG_WARNING(Service_NS, "missing NACP data for title_id={:016X}, defaulting to zeros.",
+                        title_id);
+            out.resize(std::min<u64>(0x4000, size));
+        }
+
+        if (control.second != nullptr) {
+            if (size < 0x4000 + control.second->GetSize()) {
+                LOG_ERROR(Service_NS,
+                          "output buffer is too small! (actual={:016X}, expected_min={:016X})",
+                          size, 0x4000 + control.second->GetSize());
+                IPC::ResponseBuilder rb{ctx, 2};
+                // TODO(DarkLordZach): Find a better error code for this.
+                rb.Push(ResultCode(-1));
+                return;
+            }
+
+            out.resize(0x4000 + control.second->GetSize());
+            control.second->Read(out.data() + 0x4000, control.second->GetSize());
+        } else {
+            LOG_WARNING(Service_NS, "missing icon data for title_id={:016X}, defaulting to zeros.",
+                        title_id);
+        }
+
+        ctx.WriteBuffer(out);
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u32>(static_cast<u32>(out.size()));
+    }
 };
 
 class IApplicationVersionInterface final : public ServiceFramework<IApplicationVersionInterface> {
diff --git a/src/core/hle/service/service.cpp b/src/core/hle/service/service.cpp
index a4cf45267..1ec340466 100644
--- a/src/core/hle/service/service.cpp
+++ b/src/core/hle/service/service.cpp
@@ -80,8 +80,8 @@ namespace Service {
  * Creates a function string for logging, complete with the name (or header code, depending
  * on what's passed in) the port name, and all the cmd_buff arguments.
  */
-static std::string MakeFunctionString(const char* name, const char* port_name,
-                                      const u32* cmd_buff) {
+[[maybe_unused]] static std::string MakeFunctionString(const char* name, const char* port_name,
+                                                       const u32* cmd_buff) {
     // Number of params == bits 0-5 + bits 6-11
     int num_params = (cmd_buff[0] & 0x3F) + ((cmd_buff[0] >> 6) & 0x3F);
 
diff --git a/src/core/hle/service/spl/module.cpp b/src/core/hle/service/spl/module.cpp
index 44a6717d0..b2de2a818 100644
--- a/src/core/hle/service/spl/module.cpp
+++ b/src/core/hle/service/spl/module.cpp
@@ -3,18 +3,23 @@
 // Refer to the license.txt file included.
 
 #include <algorithm>
+#include <chrono>
 #include <cstdlib>
+#include <ctime>
+#include <functional>
 #include <vector>
 #include "common/logging/log.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/service/spl/csrng.h"
 #include "core/hle/service/spl/module.h"
 #include "core/hle/service/spl/spl.h"
+#include "core/settings.h"
 
 namespace Service::SPL {
 
 Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)
-    : ServiceFramework(name), module(std::move(module)) {}
+    : ServiceFramework(name), module(std::move(module)),
+      rng(Settings::values.rng_seed.value_or(std::time(nullptr))) {}
 
 Module::Interface::~Interface() = default;
 
@@ -23,8 +28,9 @@ void Module::Interface::GetRandomBytes(Kernel::HLERequestContext& ctx) {
 
     std::size_t size = ctx.GetWriteBufferSize();
 
+    std::uniform_int_distribution<u16> distribution(0, std::numeric_limits<u8>::max());
     std::vector<u8> data(size);
-    std::generate(data.begin(), data.end(), std::rand);
+    std::generate(data.begin(), data.end(), [&] { return static_cast<u8>(distribution(rng)); });
 
     ctx.WriteBuffer(data);
 
diff --git a/src/core/hle/service/spl/module.h b/src/core/hle/service/spl/module.h
index 48fda6099..afa1f0295 100644
--- a/src/core/hle/service/spl/module.h
+++ b/src/core/hle/service/spl/module.h
@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <random>
 #include "core/hle/service/service.h"
 
 namespace Service::SPL {
@@ -19,6 +20,9 @@ public:
 
     protected:
         std::shared_ptr<Module> module;
+
+    private:
+        std::mt19937 rng;
     };
 };
 
diff --git a/src/core/hle/service/time/interface.cpp b/src/core/hle/service/time/interface.cpp
index 18a5d71d5..e3cbd7004 100644
--- a/src/core/hle/service/time/interface.cpp
+++ b/src/core/hle/service/time/interface.cpp
@@ -21,7 +21,7 @@ Time::Time(std::shared_ptr<Module> time, const char* name)
         {102, nullptr, "GetStandardUserSystemClockInitialYear"},
         {200, nullptr, "IsStandardNetworkSystemClockAccuracySufficient"},
         {300, nullptr, "CalculateMonotonicSystemClockBaseTimePoint"},
-        {400, nullptr, "GetClockSnapshot"},
+        {400, &Time::GetClockSnapshot, "GetClockSnapshot"},
         {401, nullptr, "GetClockSnapshotFromSystemClockContext"},
         {500, nullptr, "CalculateStandardUserSystemClockDifferenceByUser"},
         {501, nullptr, "CalculateSpanBetween"},
diff --git a/src/core/hle/service/time/time.cpp b/src/core/hle/service/time/time.cpp
index 28fd8debc..85e7b1195 100644
--- a/src/core/hle/service/time/time.cpp
+++ b/src/core/hle/service/time/time.cpp
@@ -15,6 +15,44 @@
 
 namespace Service::Time {
 
+static void PosixToCalendar(u64 posix_time, CalendarTime& calendar_time,
+                            CalendarAdditionalInfo& additional_info,
+                            [[maybe_unused]] const TimeZoneRule& /*rule*/) {
+    const std::time_t time(posix_time);
+    const std::tm* tm = std::localtime(&time);
+    if (tm == nullptr) {
+        calendar_time = {};
+        additional_info = {};
+        return;
+    }
+    calendar_time.year = tm->tm_year + 1900;
+    calendar_time.month = tm->tm_mon + 1;
+    calendar_time.day = tm->tm_mday;
+    calendar_time.hour = tm->tm_hour;
+    calendar_time.minute = tm->tm_min;
+    calendar_time.second = tm->tm_sec;
+
+    additional_info.day_of_week = tm->tm_wday;
+    additional_info.day_of_year = tm->tm_yday;
+    std::memcpy(additional_info.name.data(), "UTC", sizeof("UTC"));
+    additional_info.utc_offset = 0;
+}
+
+static u64 CalendarToPosix(const CalendarTime& calendar_time,
+                           [[maybe_unused]] const TimeZoneRule& /*rule*/) {
+    std::tm time{};
+    time.tm_year = calendar_time.year - 1900;
+    time.tm_mon = calendar_time.month - 1;
+    time.tm_mday = calendar_time.day;
+
+    time.tm_hour = calendar_time.hour;
+    time.tm_min = calendar_time.minute;
+    time.tm_sec = calendar_time.second;
+
+    std::time_t epoch_time = std::mktime(&time);
+    return static_cast<u64>(epoch_time);
+}
+
 class ISystemClock final : public ServiceFramework<ISystemClock> {
 public:
     ISystemClock() : ServiceFramework("ISystemClock") {
@@ -80,8 +118,8 @@ public:
             {5, nullptr, "GetTimeZoneRuleVersion"},
             {100, &ITimeZoneService::ToCalendarTime, "ToCalendarTime"},
             {101, &ITimeZoneService::ToCalendarTimeWithMyRule, "ToCalendarTimeWithMyRule"},
-            {201, nullptr, "ToPosixTime"},
-            {202, nullptr, "ToPosixTimeWithMyRule"},
+            {201, &ITimeZoneService::ToPosixTime, "ToPosixTime"},
+            {202, &ITimeZoneService::ToPosixTimeWithMyRule, "ToPosixTimeWithMyRule"},
         };
         RegisterHandlers(functions);
     }
@@ -151,24 +189,29 @@ private:
         rb.PushRaw(additional_info);
     }
 
-    void PosixToCalendar(u64 posix_time, CalendarTime& calendar_time,
-                         CalendarAdditionalInfo& additional_info, const TimeZoneRule& /*rule*/) {
-        std::time_t t(posix_time);
-        std::tm* tm = std::localtime(&t);
-        if (!tm) {
-            return;
-        }
-        calendar_time.year = tm->tm_year + 1900;
-        calendar_time.month = tm->tm_mon + 1;
-        calendar_time.day = tm->tm_mday;
-        calendar_time.hour = tm->tm_hour;
-        calendar_time.minute = tm->tm_min;
-        calendar_time.second = tm->tm_sec;
-
-        additional_info.day_of_week = tm->tm_wday;
-        additional_info.day_of_year = tm->tm_yday;
-        std::memcpy(additional_info.name.data(), "UTC", sizeof("UTC"));
-        additional_info.utc_offset = 0;
+    void ToPosixTime(Kernel::HLERequestContext& ctx) {
+        // TODO(ogniK): Figure out how to handle multiple times
+        LOG_WARNING(Service_Time, "(STUBBED) called");
+        IPC::RequestParser rp{ctx};
+        auto calendar_time = rp.PopRaw<CalendarTime>();
+        auto posix_time = CalendarToPosix(calendar_time, {});
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushRaw<u32>(1); // Amount of times we're returning
+        ctx.WriteBuffer(&posix_time, sizeof(u64));
+    }
+
+    void ToPosixTimeWithMyRule(Kernel::HLERequestContext& ctx) {
+        LOG_WARNING(Service_Time, "(STUBBED) called");
+        IPC::RequestParser rp{ctx};
+        auto calendar_time = rp.PopRaw<CalendarTime>();
+        auto posix_time = CalendarToPosix(calendar_time, {});
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushRaw<u32>(1); // Amount of times we're returning
+        ctx.WriteBuffer(&posix_time, sizeof(u64));
     }
 };
 
@@ -207,6 +250,55 @@ void Module::Interface::GetStandardLocalSystemClock(Kernel::HLERequestContext& c
     LOG_DEBUG(Service_Time, "called");
 }
 
+void Module::Interface::GetClockSnapshot(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called");
+
+    IPC::RequestParser rp{ctx};
+    auto unknown_u8 = rp.PopRaw<u8>();
+
+    ClockSnapshot clock_snapshot{};
+
+    const s64 time_since_epoch{std::chrono::duration_cast<std::chrono::seconds>(
+                                   std::chrono::system_clock::now().time_since_epoch())
+                                   .count()};
+    CalendarTime calendar_time{};
+    const std::time_t time(time_since_epoch);
+    const std::tm* tm = std::localtime(&time);
+    if (tm == nullptr) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultCode(-1)); // TODO(ogniK): Find appropriate error code
+        return;
+    }
+    SteadyClockTimePoint steady_clock_time_point{CoreTiming::cyclesToMs(CoreTiming::GetTicks()) /
+                                                 1000};
+
+    LocationName location_name{"UTC"};
+    calendar_time.year = tm->tm_year + 1900;
+    calendar_time.month = tm->tm_mon + 1;
+    calendar_time.day = tm->tm_mday;
+    calendar_time.hour = tm->tm_hour;
+    calendar_time.minute = tm->tm_min;
+    calendar_time.second = tm->tm_sec;
+    clock_snapshot.system_posix_time = time_since_epoch;
+    clock_snapshot.network_posix_time = time_since_epoch;
+    clock_snapshot.system_calendar_time = calendar_time;
+    clock_snapshot.network_calendar_time = calendar_time;
+
+    CalendarAdditionalInfo additional_info{};
+    PosixToCalendar(time_since_epoch, calendar_time, additional_info, {});
+
+    clock_snapshot.system_calendar_info = additional_info;
+    clock_snapshot.network_calendar_info = additional_info;
+
+    clock_snapshot.steady_clock_timepoint = steady_clock_time_point;
+    clock_snapshot.location_name = location_name;
+    clock_snapshot.clock_auto_adjustment_enabled = 1;
+    clock_snapshot.ipc_u8 = unknown_u8;
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+    ctx.WriteBuffer(&clock_snapshot, sizeof(ClockSnapshot));
+}
+
 Module::Interface::Interface(std::shared_ptr<Module> time, const char* name)
     : ServiceFramework(name), time(std::move(time)) {}
 
diff --git a/src/core/hle/service/time/time.h b/src/core/hle/service/time/time.h
index 5659ecad3..77871ae07 100644
--- a/src/core/hle/service/time/time.h
+++ b/src/core/hle/service/time/time.h
@@ -5,6 +5,7 @@
 #pragma once
 
 #include <array>
+#include "common/common_funcs.h"
 #include "core/hle/service/service.h"
 
 namespace Service::Time {
@@ -53,6 +54,23 @@ struct SystemClockContext {
 static_assert(sizeof(SystemClockContext) == 0x20,
               "SystemClockContext structure has incorrect size");
 
+struct ClockSnapshot {
+    SystemClockContext user_clock_context;
+    SystemClockContext network_clock_context;
+    s64_le system_posix_time;
+    s64_le network_posix_time;
+    CalendarTime system_calendar_time;
+    CalendarTime network_calendar_time;
+    CalendarAdditionalInfo system_calendar_info;
+    CalendarAdditionalInfo network_calendar_info;
+    SteadyClockTimePoint steady_clock_timepoint;
+    LocationName location_name;
+    u8 clock_auto_adjustment_enabled;
+    u8 ipc_u8;
+    INSERT_PADDING_BYTES(2);
+};
+static_assert(sizeof(ClockSnapshot) == 0xd0, "ClockSnapshot is an invalid size");
+
 class Module final {
 public:
     class Interface : public ServiceFramework<Interface> {
@@ -65,6 +83,7 @@ public:
         void GetStandardSteadyClock(Kernel::HLERequestContext& ctx);
         void GetTimeZoneService(Kernel::HLERequestContext& ctx);
         void GetStandardLocalSystemClock(Kernel::HLERequestContext& ctx);
+        void GetClockSnapshot(Kernel::HLERequestContext& ctx);
 
     protected:
         std::shared_ptr<Module> time;
diff --git a/src/core/loader/nro.cpp b/src/core/loader/nro.cpp
index bc8e402a8..c8e491fec 100644
--- a/src/core/loader/nro.cpp
+++ b/src/core/loader/nro.cpp
@@ -12,10 +12,12 @@
 #include "common/swap.h"
 #include "core/core.h"
 #include "core/file_sys/control_metadata.h"
+#include "core/file_sys/romfs_factory.h"
 #include "core/file_sys/vfs_offset.h"
 #include "core/gdbstub/gdbstub.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/vm_manager.h"
+#include "core/hle/service/filesystem/filesystem.h"
 #include "core/loader/nro.h"
 #include "core/loader/nso.h"
 #include "core/memory.h"
@@ -208,6 +210,9 @@ ResultStatus AppLoader_NRO::Load(Kernel::Process& process) {
         return ResultStatus::ErrorLoadingNRO;
     }
 
+    if (romfs != nullptr)
+        Service::FileSystem::RegisterRomFS(std::make_unique<FileSys::RomFSFactory>(*this));
+
     process.Run(base_address, Kernel::THREADPRIO_DEFAULT, Memory::DEFAULT_STACK_SIZE);
 
     is_loaded = true;
diff --git a/src/core/loader/nso.cpp b/src/core/loader/nso.cpp
index 68efca5c0..aaf006309 100644
--- a/src/core/loader/nso.cpp
+++ b/src/core/loader/nso.cpp
@@ -154,7 +154,7 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(const FileSys::VfsFile& file, VAd
     program_image.resize(image_size);
 
     // Apply patches if necessary
-    if (pm && pm->HasNSOPatch(nso_header.build_id)) {
+    if (pm && (pm->HasNSOPatch(nso_header.build_id) || Settings::values.dump_nso)) {
         std::vector<u8> pi_header(program_image.size() + 0x100);
         std::memcpy(pi_header.data(), &nso_header, sizeof(NsoHeader));
         std::memcpy(pi_header.data() + 0x100, program_image.data(), program_image.size());
diff --git a/src/core/settings.h b/src/core/settings.h
index a8954647f..e424479f2 100644
--- a/src/core/settings.h
+++ b/src/core/settings.h
@@ -6,6 +6,7 @@
 
 #include <array>
 #include <atomic>
+#include <optional>
 #include <string>
 #include "common/common_types.h"
 
@@ -114,6 +115,7 @@ struct Values {
     // System
     bool use_docked_mode;
     bool enable_nfc;
+    std::optional<u32> rng_seed;
     s32 current_user;
     s32 language_index;
 
@@ -157,6 +159,7 @@ struct Values {
     bool use_gdbstub;
     u16 gdbstub_port;
     std::string program_args;
+    bool dump_nso;
 
     // WebService
     bool enable_telemetry;