11 files changed, 201 insertions, 479 deletions

diff --git a/src/core/hle/kernel/hle_ipc.cpp b/src/core/hle/kernel/hle_ipc.cpp
index 494151eef..876fbbe53 100644
--- a/src/core/hle/kernel/hle_ipc.cpp
+++ b/src/core/hle/kernel/hle_ipc.cpp
@@ -21,36 +21,18 @@
 #include "core/hle/kernel/k_server_session.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/kernel.h"
-#include "core/hle/kernel/service_thread.h"
 #include "core/memory.h"
 
 namespace Kernel {
 
-SessionRequestHandler::SessionRequestHandler(KernelCore& kernel_, const char* service_name_,
-                                             ServiceThreadType thread_type)
-    : kernel{kernel_}, service_thread{thread_type == ServiceThreadType::CreateNew
-                                          ? kernel.CreateServiceThread(service_name_)
-                                          : kernel.GetDefaultServiceThread()} {}
+SessionRequestHandler::SessionRequestHandler(KernelCore& kernel_, const char* service_name_)
+    : kernel{kernel_} {}
 
-SessionRequestHandler::~SessionRequestHandler() {
-    kernel.ReleaseServiceThread(service_thread);
-}
-
-void SessionRequestHandler::AcceptSession(KServerPort* server_port) {
-    auto* server_session = server_port->AcceptSession();
-    ASSERT(server_session != nullptr);
-
-    RegisterSession(server_session, std::make_shared<SessionRequestManager>(kernel));
-}
-
-void SessionRequestHandler::RegisterSession(KServerSession* server_session,
-                                            std::shared_ptr<SessionRequestManager> manager) {
-    manager->SetSessionHandler(shared_from_this());
-    service_thread.RegisterServerSession(server_session, manager);
-    server_session->Close();
-}
+SessionRequestHandler::~SessionRequestHandler() = default;
 
-SessionRequestManager::SessionRequestManager(KernelCore& kernel_) : kernel{kernel_} {}
+SessionRequestManager::SessionRequestManager(KernelCore& kernel_,
+                                             Service::ServerManager& server_manager_)
+    : kernel{kernel_}, server_manager{server_manager_} {}
 
 SessionRequestManager::~SessionRequestManager() = default;
 
diff --git a/src/core/hle/kernel/hle_ipc.h b/src/core/hle/kernel/hle_ipc.h
index 5bf4f171b..b4364f984 100644
--- a/src/core/hle/kernel/hle_ipc.h
+++ b/src/core/hle/kernel/hle_ipc.h
@@ -31,12 +31,8 @@ class ResponseBuilder;
 
 namespace Service {
 class ServiceFrameworkBase;
-}
-
-enum class ServiceThreadType {
-    Default,
-    CreateNew,
-};
+class ServerManager;
+} // namespace Service
 
 namespace Kernel {
 
@@ -53,9 +49,6 @@ class KThread;
 class KReadableEvent;
 class KSession;
 class SessionRequestManager;
-class ServiceThread;
-
-enum class ThreadWakeupReason;
 
 /**
  * Interface implemented by HLE Session handlers.
@@ -64,8 +57,7 @@ enum class ThreadWakeupReason;
  */
 class SessionRequestHandler : public std::enable_shared_from_this<SessionRequestHandler> {
 public:
-    SessionRequestHandler(KernelCore& kernel_, const char* service_name_,
-                          ServiceThreadType thread_type);
+    SessionRequestHandler(KernelCore& kernel_, const char* service_name_);
     virtual ~SessionRequestHandler();
 
     /**
@@ -79,17 +71,8 @@ public:
     virtual Result HandleSyncRequest(Kernel::KServerSession& session,
                                      Kernel::HLERequestContext& context) = 0;
 
-    void AcceptSession(KServerPort* server_port);
-    void RegisterSession(KServerSession* server_session,
-                         std::shared_ptr<SessionRequestManager> manager);
-
-    ServiceThread& GetServiceThread() const {
-        return service_thread;
-    }
-
 protected:
     KernelCore& kernel;
-    ServiceThread& service_thread;
 };
 
 using SessionRequestHandlerWeakPtr = std::weak_ptr<SessionRequestHandler>;
@@ -102,7 +85,7 @@ using SessionRequestHandlerPtr = std::shared_ptr<SessionRequestHandler>;
  */
 class SessionRequestManager final {
 public:
-    explicit SessionRequestManager(KernelCore& kernel);
+    explicit SessionRequestManager(KernelCore& kernel, Service::ServerManager& server_manager);
     ~SessionRequestManager();
 
     bool IsDomain() const {
@@ -155,23 +138,36 @@ public:
         session_handler = std::move(handler);
     }
 
-    ServiceThread& GetServiceThread() const {
-        return session_handler->GetServiceThread();
-    }
-
     bool HasSessionRequestHandler(const HLERequestContext& context) const;
 
     Result HandleDomainSyncRequest(KServerSession* server_session, HLERequestContext& context);
     Result CompleteSyncRequest(KServerSession* server_session, HLERequestContext& context);
 
+    Service::ServerManager& GetServerManager() {
+        return server_manager;
+    }
+
+    // TODO: remove this when sm: is implemented with the proper IUserInterface
+    // abstraction, creating a new C++ handler object for each session:
+
+    bool GetIsInitializedForSm() const {
+        return is_initialized_for_sm;
+    }
+
+    void SetIsInitializedForSm() {
+        is_initialized_for_sm = true;
+    }
+
 private:
     bool convert_to_domain{};
     bool is_domain{};
+    bool is_initialized_for_sm{};
     SessionRequestHandlerPtr session_handler;
     std::vector<SessionRequestHandlerPtr> domain_handlers;
 
 private:
     KernelCore& kernel;
+    Service::ServerManager& server_manager;
 };
 
 /**
@@ -374,6 +370,14 @@ public:
         return manager.lock();
     }
 
+    bool GetIsDeferred() const {
+        return is_deferred;
+    }
+
+    void SetIsDeferred(bool is_deferred_ = true) {
+        is_deferred = is_deferred_;
+    }
+
 private:
     friend class IPC::ResponseBuilder;
 
@@ -408,6 +412,7 @@ private:
     u32 domain_offset{};
 
     std::weak_ptr<SessionRequestManager> manager{};
+    bool is_deferred{false};
 
     KernelCore& kernel;
     Core::Memory::Memory& memory;
diff --git a/src/core/hle/kernel/k_process.cpp b/src/core/hle/kernel/k_process.cpp
index 0e4283a0c..d9c1a0eb3 100644
--- a/src/core/hle/kernel/k_process.cpp
+++ b/src/core/hle/kernel/k_process.cpp
@@ -119,7 +119,6 @@ void KProcess::DecrementRunningThreadCount() {
 
     if (const auto prev = num_running_threads--; prev == 1) {
         // TODO(bunnei): Process termination to be implemented when multiprocess is supported.
-        UNIMPLEMENTED_MSG("KProcess termination is not implemennted!");
     }
 }
 
@@ -357,9 +356,6 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
     system_resource_size = metadata.GetSystemResourceSize();
     image_size = code_size;
 
-    // We currently do not support process-specific system resource
-    UNIMPLEMENTED_IF(system_resource_size != 0);
-
     KScopedResourceReservation memory_reservation(
         resource_limit, LimitableResource::PhysicalMemoryMax, code_size + system_resource_size);
     if (!memory_reservation.Succeeded()) {
diff --git a/src/core/hle/kernel/k_thread.cpp b/src/core/hle/kernel/k_thread.cpp
index 2d3da9d66..599d05947 100644
--- a/src/core/hle/kernel/k_thread.cpp
+++ b/src/core/hle/kernel/k_thread.cpp
@@ -29,6 +29,7 @@
 #include "core/hle/kernel/k_thread_queue.h"
 #include "core/hle/kernel/k_worker_task_manager.h"
 #include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/svc.h"
 #include "core/hle/kernel/svc_results.h"
 #include "core/hle/kernel/svc_types.h"
 #include "core/hle/result.h"
@@ -298,6 +299,25 @@ Result KThread::InitializeUserThread(Core::System& system, KThread* thread, KThr
                               ThreadType::User, system.GetCpuManager().GetGuestThreadFunc()));
 }
 
+Result KThread::InitializeServiceThread(Core::System& system, KThread* thread,
+                                        std::function<void()>&& func, s32 prio, s32 virt_core,
+                                        KProcess* owner) {
+    system.Kernel().GlobalSchedulerContext().AddThread(thread);
+    std::function<void()> func2{[&system, func{std::move(func)}] {
+        // Similar to UserModeThreadStarter.
+        system.Kernel().CurrentScheduler()->OnThreadStart();
+
+        // Run the guest function.
+        func();
+
+        // Exit.
+        Svc::ExitThread(system);
+    }};
+
+    R_RETURN(InitializeThread(thread, {}, {}, {}, prio, virt_core, owner, ThreadType::HighPriority,
+                              std::move(func2)));
+}
+
 void KThread::PostDestroy(uintptr_t arg) {
     KProcess* owner = reinterpret_cast<KProcess*>(arg & ~1ULL);
     const bool resource_limit_release_hint = (arg & 1);
diff --git a/src/core/hle/kernel/k_thread.h b/src/core/hle/kernel/k_thread.h
index ca82ce3b6..a04de21bc 100644
--- a/src/core/hle/kernel/k_thread.h
+++ b/src/core/hle/kernel/k_thread.h
@@ -434,6 +434,10 @@ public:
                                                      VAddr user_stack_top, s32 prio, s32 virt_core,
                                                      KProcess* owner);
 
+    [[nodiscard]] static Result InitializeServiceThread(Core::System& system, KThread* thread,
+                                                        std::function<void()>&& thread_func,
+                                                        s32 prio, s32 virt_core, KProcess* owner);
+
 public:
     struct StackParameters {
         u8 svc_permission[0x10];
diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index 2ff253183..ce94d3605 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -34,14 +34,15 @@
 #include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_resource_limit.h"
 #include "core/hle/kernel/k_scheduler.h"
+#include "core/hle/kernel/k_scoped_resource_reservation.h"
 #include "core/hle/kernel/k_shared_memory.h"
 #include "core/hle/kernel/k_system_resource.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/k_worker_task_manager.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/physical_core.h"
-#include "core/hle/kernel/service_thread.h"
 #include "core/hle/result.h"
+#include "core/hle/service/server_manager.h"
 #include "core/hle/service/sm/sm.h"
 #include "core/memory.h"
 
@@ -55,9 +56,7 @@ struct KernelCore::Impl {
     static constexpr size_t BlockInfoSlabHeapSize = 4000;
     static constexpr size_t ReservedDynamicPageCount = 64;
 
-    explicit Impl(Core::System& system_, KernelCore& kernel_)
-        : service_threads_manager{1, "ServiceThreadsManager"},
-          service_thread_barrier{2}, system{system_} {}
+    explicit Impl(Core::System& system_, KernelCore& kernel_) : system{system_} {}
 
     void SetMulticore(bool is_multi) {
         is_multicore = is_multi;
@@ -98,8 +97,6 @@ struct KernelCore::Impl {
 
         InitializeHackSharedMemory();
         RegisterHostThread(nullptr);
-
-        default_service_thread = &CreateServiceThread(kernel, "DefaultServiceThread");
     }
 
     void InitializeCores() {
@@ -140,11 +137,6 @@ struct KernelCore::Impl {
 
         preemption_event = nullptr;
 
-        for (auto& iter : named_ports) {
-            iter.second->Close();
-        }
-        named_ports.clear();
-
         exclusive_monitor.reset();
 
         // Cleanup persistent kernel objects
@@ -207,8 +199,9 @@ struct KernelCore::Impl {
     }
 
     void CloseServices() {
-        // Ensures all service threads gracefully shutdown.
-        ClearServiceThreads();
+        // Ensures all servers gracefully shutdown.
+        std::scoped_lock lk{server_lock};
+        server_managers.clear();
     }
 
     void InitializePhysicalCores() {
@@ -761,55 +754,6 @@ struct KernelCore::Impl {
                                       "HidBus:SharedMemory");
     }
 
-    KClientPort* CreateNamedServicePort(std::string name) {
-        auto search = service_interface_factory.find(name);
-        if (search == service_interface_factory.end()) {
-            UNIMPLEMENTED();
-            return {};
-        }
-
-        return &search->second(system.ServiceManager(), system);
-    }
-
-    void RegisterNamedServiceHandler(std::string name, KServerPort* server_port) {
-        auto search = service_interface_handlers.find(name);
-        if (search == service_interface_handlers.end()) {
-            return;
-        }
-
-        search->second(system.ServiceManager(), server_port);
-    }
-
-    Kernel::ServiceThread& CreateServiceThread(KernelCore& kernel, const std::string& name) {
-        auto* ptr = new ServiceThread(kernel, name);
-
-        service_threads_manager.QueueWork(
-            [this, ptr]() { service_threads.emplace(ptr, std::unique_ptr<ServiceThread>(ptr)); });
-
-        return *ptr;
-    }
-
-    void ReleaseServiceThread(Kernel::ServiceThread& service_thread) {
-        auto* ptr = &service_thread;
-
-        if (ptr == default_service_thread) {
-            // Nothing to do here, the service is using default_service_thread, which will be
-            // released on shutdown.
-            return;
-        }
-
-        service_threads_manager.QueueWork([this, ptr]() { service_threads.erase(ptr); });
-    }
-
-    void ClearServiceThreads() {
-        service_threads_manager.QueueWork([this] {
-            service_threads.clear();
-            default_service_thread = nullptr;
-            service_thread_barrier.Sync();
-        });
-        service_thread_barrier.Sync();
-    }
-
     std::mutex registered_objects_lock;
     std::mutex registered_in_use_objects_lock;
 
@@ -839,14 +783,12 @@ struct KernelCore::Impl {
 
     std::unique_ptr<KObjectNameGlobalData> object_name_global_data;
 
-    /// Map of named ports managed by the kernel, which can be retrieved using
-    /// the ConnectToPort SVC.
-    std::unordered_map<std::string, ServiceInterfaceFactory> service_interface_factory;
-    std::unordered_map<std::string, ServiceInterfaceHandlerFn> service_interface_handlers;
-    NamedPortTable named_ports;
     std::unordered_set<KAutoObject*> registered_objects;
     std::unordered_set<KAutoObject*> registered_in_use_objects;
 
+    std::mutex server_lock;
+    std::vector<std::unique_ptr<Service::ServerManager>> server_managers;
+
     std::unique_ptr<Core::ExclusiveMonitor> exclusive_monitor;
     std::array<std::unique_ptr<Kernel::PhysicalCore>, Core::Hardware::NUM_CPU_CORES> cores;
 
@@ -881,12 +823,6 @@ struct KernelCore::Impl {
     // Memory layout
     std::unique_ptr<KMemoryLayout> memory_layout;
 
-    // Threads used for services
-    std::unordered_map<ServiceThread*, std::unique_ptr<ServiceThread>> service_threads;
-    ServiceThread* default_service_thread{};
-    Common::ThreadWorker service_threads_manager;
-    Common::Barrier service_thread_barrier;
-
     std::array<KThread*, Core::Hardware::NUM_CPU_CORES> shutdown_threads{};
     std::array<std::unique_ptr<Kernel::KScheduler>, Core::Hardware::NUM_CPU_CORES> schedulers{};
 
@@ -1050,23 +986,6 @@ void KernelCore::PrepareReschedule(std::size_t id) {
     // TODO: Reimplement, this
 }
 
-void KernelCore::RegisterNamedService(std::string name, ServiceInterfaceFactory&& factory) {
-    impl->service_interface_factory.emplace(std::move(name), factory);
-}
-
-void KernelCore::RegisterInterfaceForNamedService(std::string name,
-                                                  ServiceInterfaceHandlerFn&& handler) {
-    impl->service_interface_handlers.emplace(std::move(name), handler);
-}
-
-KClientPort* KernelCore::CreateNamedServicePort(std::string name) {
-    return impl->CreateNamedServicePort(std::move(name));
-}
-
-void KernelCore::RegisterNamedServiceHandler(std::string name, KServerPort* server_port) {
-    impl->RegisterNamedServiceHandler(std::move(name), server_port);
-}
-
 void KernelCore::RegisterKernelObject(KAutoObject* object) {
     std::scoped_lock lk{impl->registered_objects_lock};
     impl->registered_objects.insert(object);
@@ -1087,8 +1006,19 @@ void KernelCore::UnregisterInUseObject(KAutoObject* object) {
     impl->registered_in_use_objects.erase(object);
 }
 
-bool KernelCore::IsValidNamedPort(NamedPortTable::const_iterator port) const {
-    return port != impl->named_ports.cend();
+void KernelCore::RunServer(std::unique_ptr<Service::ServerManager>&& server_manager) {
+    auto* manager = server_manager.get();
+
+    {
+        std::scoped_lock lk{impl->server_lock};
+        if (impl->is_shutting_down) {
+            return;
+        }
+
+        impl->server_managers.emplace_back(std::move(server_manager));
+    }
+
+    manager->LoopProcess();
 }
 
 u32 KernelCore::CreateNewObjectID() {
@@ -1127,6 +1057,87 @@ void KernelCore::RegisterHostThread(KThread* existing_thread) {
     }
 }
 
+static std::jthread RunHostThreadFunc(KernelCore& kernel, KProcess* process,
+                                      std::string&& thread_name, std::function<void()>&& func) {
+    // Reserve a new thread from the process resource limit.
+    KScopedResourceReservation thread_reservation(process, LimitableResource::ThreadCountMax);
+    ASSERT(thread_reservation.Succeeded());
+
+    // Initialize the thread.
+    KThread* thread = KThread::Create(kernel);
+    ASSERT(R_SUCCEEDED(KThread::InitializeDummyThread(thread, process)));
+
+    // Commit the thread reservation.
+    thread_reservation.Commit();
+
+    return std::jthread(
+        [&kernel, thread, thread_name{std::move(thread_name)}, func{std::move(func)}] {
+            // Set the thread name.
+            Common::SetCurrentThreadName(thread_name.c_str());
+
+            // Register the thread.
+            kernel.RegisterHostThread(thread);
+
+            // Run the callback.
+            func();
+
+            // Close the thread.
+            // This will free the process if it is the last reference.
+            thread->Close();
+        });
+}
+
+std::jthread KernelCore::RunOnHostCoreProcess(std::string&& process_name,
+                                              std::function<void()> func) {
+    // Make a new process.
+    KProcess* process = KProcess::Create(*this);
+    ASSERT(R_SUCCEEDED(KProcess::Initialize(process, System(), "", KProcess::ProcessType::Userland,
+                                            GetSystemResourceLimit())));
+
+    // Ensure that we don't hold onto any extra references.
+    SCOPE_EXIT({ process->Close(); });
+
+    // Run the host thread.
+    return RunHostThreadFunc(*this, process, std::move(process_name), std::move(func));
+}
+
+std::jthread KernelCore::RunOnHostCoreThread(std::string&& thread_name,
+                                             std::function<void()> func) {
+    // Get the current process.
+    KProcess* process = GetCurrentProcessPointer(*this);
+
+    // Run the host thread.
+    return RunHostThreadFunc(*this, process, std::move(thread_name), std::move(func));
+}
+
+void KernelCore::RunOnGuestCoreProcess(std::string&& process_name, std::function<void()> func) {
+    constexpr s32 ServiceThreadPriority = 16;
+    constexpr s32 ServiceThreadCore = 3;
+
+    // Make a new process.
+    KProcess* process = KProcess::Create(*this);
+    ASSERT(R_SUCCEEDED(KProcess::Initialize(process, System(), "", KProcess::ProcessType::Userland,
+                                            GetSystemResourceLimit())));
+
+    // Ensure that we don't hold onto any extra references.
+    SCOPE_EXIT({ process->Close(); });
+
+    // Reserve a new thread from the process resource limit.
+    KScopedResourceReservation thread_reservation(process, LimitableResource::ThreadCountMax);
+    ASSERT(thread_reservation.Succeeded());
+
+    // Initialize the thread.
+    KThread* thread = KThread::Create(*this);
+    ASSERT(R_SUCCEEDED(KThread::InitializeServiceThread(
+        System(), thread, std::move(func), ServiceThreadPriority, ServiceThreadCore, process)));
+
+    // Commit the thread reservation.
+    thread_reservation.Commit();
+
+    // Begin running the thread.
+    ASSERT(R_SUCCEEDED(thread->Run()));
+}
+
 u32 KernelCore::GetCurrentHostThreadID() const {
     return impl->GetCurrentHostThreadID();
 }
@@ -1271,18 +1282,6 @@ void KernelCore::ExitSVCProfile() {
     MicroProfileLeave(MICROPROFILE_TOKEN(Kernel_SVC), impl->svc_ticks[CurrentPhysicalCoreIndex()]);
 }
 
-Kernel::ServiceThread& KernelCore::CreateServiceThread(const std::string& name) {
-    return impl->CreateServiceThread(*this, name);
-}
-
-Kernel::ServiceThread& KernelCore::GetDefaultServiceThread() const {
-    return *impl->default_service_thread;
-}
-
-void KernelCore::ReleaseServiceThread(Kernel::ServiceThread& service_thread) {
-    impl->ReleaseServiceThread(service_thread);
-}
-
 Init::KSlabResourceCounts& KernelCore::SlabResourceCounts() {
     return impl->slab_resource_counts;
 }
diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h
index 6e0668f7f..4449f6949 100644
--- a/src/core/hle/kernel/kernel.h
+++ b/src/core/hle/kernel/kernel.h
@@ -9,6 +9,8 @@
 #include <string>
 #include <unordered_map>
 #include <vector>
+
+#include "common/polyfill_thread.h"
 #include "core/hardware_properties.h"
 #include "core/hle/kernel/k_auto_object.h"
 #include "core/hle/kernel/k_slab_heap.h"
@@ -24,6 +26,10 @@ class CoreTiming;
 struct EventType;
 } // namespace Core::Timing
 
+namespace Service {
+class ServerManager;
+}
+
 namespace Service::SM {
 class ServiceManager;
 }
@@ -65,13 +71,6 @@ class KTransferMemory;
 class KWorkerTaskManager;
 class KCodeMemory;
 class PhysicalCore;
-class ServiceThread;
-class Synchronization;
-
-using ServiceInterfaceFactory =
-    std::function<KClientPort&(Service::SM::ServiceManager&, Core::System&)>;
-
-using ServiceInterfaceHandlerFn = std::function<void(Service::SM::ServiceManager&, KServerPort*)>;
 
 namespace Init {
 struct KSlabResourceCounts;
@@ -80,15 +79,8 @@ struct KSlabResourceCounts;
 template <typename T>
 class KSlabHeap;
 
-using EmuThreadHandle = uintptr_t;
-constexpr EmuThreadHandle EmuThreadHandleInvalid{};
-constexpr EmuThreadHandle EmuThreadHandleReserved{1ULL << 63};
-
 /// Represents a single instance of the kernel.
 class KernelCore {
-private:
-    using NamedPortTable = std::unordered_map<std::string, KClientPort*>;
-
 public:
     /// Constructs an instance of the kernel using the given System
     /// instance as a context for any necessary system-related state,
@@ -196,18 +188,6 @@ public:
 
     void InvalidateCpuInstructionCacheRange(VAddr addr, std::size_t size);
 
-    /// Registers a named HLE service, passing a factory used to open a port to that service.
-    void RegisterNamedService(std::string name, ServiceInterfaceFactory&& factory);
-
-    /// Registers a setup function for the named HLE service.
-    void RegisterInterfaceForNamedService(std::string name, ServiceInterfaceHandlerFn&& handler);
-
-    /// Opens a port to a service previously registered with RegisterNamedService.
-    KClientPort* CreateNamedServicePort(std::string name);
-
-    /// Accepts a session on a port created by CreateNamedServicePort.
-    void RegisterNamedServiceHandler(std::string name, KServerPort* server_port);
-
     /// Registers all kernel objects with the global emulation state, this is purely for tracking
     /// leaks after emulation has been shutdown.
     void RegisterKernelObject(KAutoObject* object);
@@ -224,8 +204,8 @@ public:
     /// destroyed during the current emulation session.
     void UnregisterInUseObject(KAutoObject* object);
 
-    /// Determines whether or not the given port is a valid named port.
-    bool IsValidNamedPort(NamedPortTable::const_iterator port) const;
+    // Runs the given server manager until shutdown.
+    void RunServer(std::unique_ptr<Service::ServerManager>&& server_manager);
 
     /// Gets the current host_thread/guest_thread pointer.
     KThread* GetCurrentEmuThread() const;
@@ -242,6 +222,12 @@ public:
     /// Register the current thread as a non CPU core thread.
     void RegisterHostThread(KThread* existing_thread = nullptr);
 
+    void RunOnGuestCoreProcess(std::string&& process_name, std::function<void()> func);
+
+    std::jthread RunOnHostCoreProcess(std::string&& process_name, std::function<void()> func);
+
+    std::jthread RunOnHostCoreThread(std::string&& thread_name, std::function<void()> func);
+
     /// Gets global data for KObjectName.
     KObjectNameGlobalData& ObjectNameGlobalData();
 
@@ -310,33 +296,6 @@ public:
 
     void ExitSVCProfile();
 
-    /**
-     * Creates a host thread to execute HLE service requests, which are used to execute service
-     * routines asynchronously. While these are allocated per ServerSession, these need to be owned
-     * and managed outside of ServerSession to avoid a circular dependency. In general, most
-     * services can just use the default service thread, and not need their own host service thread.
-     * See GetDefaultServiceThread.
-     * @param name String name for the ServerSession creating this thread, used for debug
-     * purposes.
-     * @returns A reference to the newly created service thread.
-     */
-    Kernel::ServiceThread& CreateServiceThread(const std::string& name);
-
-    /**
-     * Gets the default host service thread, which executes HLE service requests. Unless service
-     * requests need to block on the host, the default service thread should be used in favor of
-     * creating a new service thread.
-     * @returns A reference to the default service thread.
-     */
-    Kernel::ServiceThread& GetDefaultServiceThread() const;
-
-    /**
-     * Releases a HLE service thread, instructing KernelCore to free it. This should be called when
-     * the ServerSession associated with the thread is destroyed.
-     * @param service_thread Service thread to release.
-     */
-    void ReleaseServiceThread(Kernel::ServiceThread& service_thread);
-
     /// Workaround for single-core mode when preempting threads while idle.
     bool IsPhantomModeForSingleCore() const;
     void SetIsPhantomModeForSingleCore(bool value);
diff --git a/src/core/hle/kernel/service_thread.cpp b/src/core/hle/kernel/service_thread.cpp
deleted file mode 100644
index 38afa720b..000000000
--- a/src/core/hle/kernel/service_thread.cpp
+++ /dev/null
@@ -1,206 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#include <functional>
-#include <map>
-#include <mutex>
-#include <thread>
-#include <vector>
-
-#include "common/polyfill_thread.h"
-#include "common/scope_exit.h"
-#include "common/thread.h"
-#include "core/hle/ipc_helpers.h"
-#include "core/hle/kernel/hle_ipc.h"
-#include "core/hle/kernel/k_event.h"
-#include "core/hle/kernel/k_scoped_resource_reservation.h"
-#include "core/hle/kernel/k_session.h"
-#include "core/hle/kernel/k_thread.h"
-#include "core/hle/kernel/kernel.h"
-#include "core/hle/kernel/service_thread.h"
-
-namespace Kernel {
-
-class ServiceThread::Impl final {
-public:
-    explicit Impl(KernelCore& kernel, const std::string& service_name);
-    ~Impl();
-
-    void WaitAndProcessImpl();
-    void SessionClosed(KServerSession* server_session,
-                       std::shared_ptr<SessionRequestManager> manager);
-    void LoopProcess();
-
-    void RegisterServerSession(KServerSession* session,
-                               std::shared_ptr<SessionRequestManager> manager);
-
-private:
-    KernelCore& kernel;
-    const std::string m_service_name;
-
-    std::jthread m_host_thread{};
-    std::mutex m_session_mutex{};
-    std::map<KServerSession*, std::shared_ptr<SessionRequestManager>> m_sessions{};
-    KEvent* m_wakeup_event{};
-    KThread* m_thread{};
-    std::atomic<bool> m_shutdown_requested{};
-};
-
-void ServiceThread::Impl::WaitAndProcessImpl() {
-    // Create local list of waitable sessions.
-    std::vector<KSynchronizationObject*> objs;
-    std::vector<std::shared_ptr<SessionRequestManager>> managers;
-
-    {
-        // Lock to get the set.
-        std::scoped_lock lk{m_session_mutex};
-
-        // Reserve the needed quantity.
-        objs.reserve(m_sessions.size() + 1);
-        managers.reserve(m_sessions.size());
-
-        // Copy to our local list.
-        for (const auto& [session, manager] : m_sessions) {
-            objs.push_back(session);
-            managers.push_back(manager);
-        }
-
-        // Insert the wakeup event at the end.
-        objs.push_back(&m_wakeup_event->GetReadableEvent());
-    }
-
-    // Wait on the list of sessions.
-    s32 index{-1};
-    Result rc = KSynchronizationObject::Wait(kernel, &index, objs.data(),
-                                             static_cast<s32>(objs.size()), -1);
-    ASSERT(!rc.IsFailure());
-
-    // If this was the wakeup event, clear it and finish.
-    if (index >= static_cast<s64>(objs.size() - 1)) {
-        m_wakeup_event->Clear();
-        return;
-    }
-
-    // This event is from a server session.
-    auto* server_session = static_cast<KServerSession*>(objs[index]);
-    auto& manager = managers[index];
-
-    // Fetch the HLE request context.
-    std::shared_ptr<HLERequestContext> context;
-    rc = server_session->ReceiveRequest(&context, manager);
-
-    // If the session was closed, handle that.
-    if (rc == ResultSessionClosed) {
-        SessionClosed(server_session, manager);
-
-        // Finish.
-        return;
-    }
-
-    // TODO: handle other cases
-    ASSERT(rc == ResultSuccess);
-
-    // Perform the request.
-    Result service_rc = manager->CompleteSyncRequest(server_session, *context);
-
-    // Reply to the client.
-    rc = server_session->SendReplyHLE();
-
-    if (rc == ResultSessionClosed || service_rc == IPC::ERR_REMOTE_PROCESS_DEAD) {
-        SessionClosed(server_session, manager);
-        return;
-    }
-
-    // TODO: handle other cases
-    ASSERT(rc == ResultSuccess);
-    ASSERT(service_rc == ResultSuccess);
-}
-
-void ServiceThread::Impl::SessionClosed(KServerSession* server_session,
-                                        std::shared_ptr<SessionRequestManager> manager) {
-    {
-        // Lock to get the set.
-        std::scoped_lock lk{m_session_mutex};
-
-        // Erase the session.
-        ASSERT(m_sessions.erase(server_session) == 1);
-    }
-
-    // Close our reference to the server session.
-    server_session->Close();
-}
-
-void ServiceThread::Impl::LoopProcess() {
-    Common::SetCurrentThreadName(m_service_name.c_str());
-
-    kernel.RegisterHostThread(m_thread);
-
-    while (!m_shutdown_requested.load()) {
-        WaitAndProcessImpl();
-    }
-}
-
-void ServiceThread::Impl::RegisterServerSession(KServerSession* server_session,
-                                                std::shared_ptr<SessionRequestManager> manager) {
-    // Open the server session.
-    server_session->Open();
-
-    {
-        // Lock to get the set.
-        std::scoped_lock lk{m_session_mutex};
-
-        // Insert the session and manager.
-        m_sessions[server_session] = manager;
-    }
-
-    // Signal the wakeup event.
-    m_wakeup_event->Signal();
-}
-
-ServiceThread::Impl::~Impl() {
-    // Shut down the processing thread.
-    m_shutdown_requested.store(true);
-    m_wakeup_event->Signal();
-    m_host_thread.join();
-
-    // Close all remaining sessions.
-    for (const auto& [server_session, manager] : m_sessions) {
-        server_session->Close();
-    }
-
-    // Destroy remaining managers.
-    m_sessions.clear();
-
-    // Close event.
-    m_wakeup_event->GetReadableEvent().Close();
-    m_wakeup_event->Close();
-
-    // Close thread.
-    m_thread->Close();
-}
-
-ServiceThread::Impl::Impl(KernelCore& kernel_, const std::string& service_name)
-    : kernel{kernel_}, m_service_name{service_name} {
-    // Initialize event.
-    m_wakeup_event = KEvent::Create(kernel);
-    m_wakeup_event->Initialize(nullptr);
-
-    // Initialize thread.
-    m_thread = KThread::Create(kernel);
-    ASSERT(KThread::InitializeDummyThread(m_thread, nullptr).IsSuccess());
-
-    // Start thread.
-    m_host_thread = std::jthread([this] { LoopProcess(); });
-}
-
-ServiceThread::ServiceThread(KernelCore& kernel, const std::string& name)
-    : impl{std::make_unique<Impl>(kernel, name)} {}
-
-ServiceThread::~ServiceThread() = default;
-
-void ServiceThread::RegisterServerSession(KServerSession* session,
-                                          std::shared_ptr<SessionRequestManager> manager) {
-    impl->RegisterServerSession(session, manager);
-}
-
-} // namespace Kernel
diff --git a/src/core/hle/kernel/service_thread.h b/src/core/hle/kernel/service_thread.h
deleted file mode 100644
index fb4325531..000000000
--- a/src/core/hle/kernel/service_thread.h
+++ /dev/null
@@ -1,29 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include <memory>
-#include <string>
-
-namespace Kernel {
-
-class HLERequestContext;
-class KernelCore;
-class KSession;
-class SessionRequestManager;
-
-class ServiceThread final {
-public:
-    explicit ServiceThread(KernelCore& kernel, const std::string& name);
-    ~ServiceThread();
-
-    void RegisterServerSession(KServerSession* session,
-                               std::shared_ptr<SessionRequestManager> manager);
-
-private:
-    class Impl;
-    std::unique_ptr<Impl> impl;
-};
-
-} // namespace Kernel
diff --git a/src/core/hle/kernel/svc/svc_info.cpp b/src/core/hle/kernel/svc/svc_info.cpp
index 58dc47508..cbed4dc8c 100644
--- a/src/core/hle/kernel/svc/svc_info.cpp
+++ b/src/core/hle/kernel/svc/svc_info.cpp
@@ -126,6 +126,11 @@ Result GetInfo(Core::System& system, u64* result, InfoType info_id_type, Handle
             *result = process->GetTotalPhysicalMemoryUsedWithoutSystemResource();
             return ResultSuccess;
 
+        case InfoType::IsApplication:
+            LOG_WARNING(Kernel_SVC, "(STUBBED) Assuming process is application");
+            *result = true;
+            return ResultSuccess;
+
         case InfoType::FreeThreadCount:
             *result = process->GetFreeThreadCount();
             return ResultSuccess;
diff --git a/src/core/hle/kernel/svc/svc_port.cpp b/src/core/hle/kernel/svc/svc_port.cpp
index 0b5b4ba2b..78c2a8d17 100644
--- a/src/core/hle/kernel/svc/svc_port.cpp
+++ b/src/core/hle/kernel/svc/svc_port.cpp
@@ -12,56 +12,40 @@
 
 namespace Kernel::Svc {
 
-/// Connect to an OS service given the port name, returns the handle to the port to out
-Result ConnectToNamedPort(Core::System& system, Handle* out, VAddr port_name_address) {
-    auto& memory = system.Memory();
-    if (!memory.IsValidVirtualAddress(port_name_address)) {
-        LOG_ERROR(Kernel_SVC,
-                  "Port Name Address is not a valid virtual address, port_name_address=0x{:016X}",
-                  port_name_address);
-        return ResultNotFound;
-    }
+Result ConnectToNamedPort(Core::System& system, Handle* out, VAddr user_name) {
+    // Copy the provided name from user memory to kernel memory.
+    auto string_name = system.Memory().ReadCString(user_name, KObjectName::NameLengthMax);
 
-    static constexpr std::size_t PortNameMaxLength = 11;
-    // Read 1 char beyond the max allowed port name to detect names that are too long.
-    const std::string port_name = memory.ReadCString(port_name_address, PortNameMaxLength + 1);
-    if (port_name.size() > PortNameMaxLength) {
-        LOG_ERROR(Kernel_SVC, "Port name is too long, expected {} but got {}", PortNameMaxLength,
-                  port_name.size());
-        return ResultOutOfRange;
-    }
+    std::array<char, KObjectName::NameLengthMax> name{};
+    std::strncpy(name.data(), string_name.c_str(), KObjectName::NameLengthMax - 1);
 
-    LOG_TRACE(Kernel_SVC, "called port_name={}", port_name);
+    // Validate that the name is valid.
+    R_UNLESS(name[sizeof(name) - 1] == '\x00', ResultOutOfRange);
 
     // Get the current handle table.
-    auto& kernel = system.Kernel();
-    auto& handle_table = GetCurrentProcess(kernel).GetHandleTable();
+    auto& handle_table = GetCurrentProcess(system.Kernel()).GetHandleTable();
 
     // Find the client port.
-    auto port = kernel.CreateNamedServicePort(port_name);
-    if (!port) {
-        LOG_ERROR(Kernel_SVC, "tried to connect to unknown port: {}", port_name);
-        return ResultNotFound;
-    }
+    auto port = KObjectName::Find<KClientPort>(system.Kernel(), name.data());
+    R_UNLESS(port.IsNotNull(), ResultNotFound);
 
     // Reserve a handle for the port.
     // NOTE: Nintendo really does write directly to the output handle here.
     R_TRY(handle_table.Reserve(out));
-    auto handle_guard = SCOPE_GUARD({ handle_table.Unreserve(*out); });
+    ON_RESULT_FAILURE {
+        handle_table.Unreserve(*out);
+    };
 
     // Create a session.
-    KClientSession* session{};
+    KClientSession* session;
     R_TRY(port->CreateSession(std::addressof(session)));
 
-    kernel.RegisterNamedServiceHandler(port_name, &port->GetParent()->GetServerPort());
-
     // Register the session in the table, close the extra reference.
     handle_table.Register(*out, session);
     session->Close();
 
     // We succeeded.
-    handle_guard.Cancel();
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result CreatePort(Core::System& system, Handle* out_server, Handle* out_client,
@@ -78,8 +62,11 @@ Result ConnectToPort(Core::System& system, Handle* out_handle, Handle port) {
 Result ManageNamedPort(Core::System& system, Handle* out_server_handle, uint64_t user_name,
                        int32_t max_sessions) {
     // Copy the provided name from user memory to kernel memory.
+    auto string_name = system.Memory().ReadCString(user_name, KObjectName::NameLengthMax);
+
+    // Copy the provided name from user memory to kernel memory.
     std::array<char, KObjectName::NameLengthMax> name{};
-    system.Memory().ReadBlock(user_name, name.data(), sizeof(name));
+    std::strncpy(name.data(), string_name.c_str(), KObjectName::NameLengthMax - 1);
 
     // Validate that sessions and name are valid.
     R_UNLESS(max_sessions >= 0, ResultOutOfRange);