common: tree: Avoid a nullptr dereference.

- Fixes our error checking of names as well.

src/common/tree.h

@@ -322,7 +322,7 @@ void RB_INSERT_COLOR(RBHead<Node>* head, Node* elm) {
 template <typename Node>
 void RB_REMOVE_COLOR(RBHead<Node>* head, Node* parent, Node* elm) {
     Node* tmp;
-    while ((elm == nullptr || RB_IS_BLACK(elm)) && elm != head->Root()) {
+    while ((elm == nullptr || RB_IS_BLACK(elm)) && elm != head->Root() && parent != nullptr) {
         if (RB_LEFT(parent) == elm) {
             tmp = RB_RIGHT(parent);
             if (RB_IS_RED(tmp)) {

src/core/hle/ipc.h

@@ -32,7 +32,8 @@ enum class CommandType : u32 {
     Control = 5,
     RequestWithContext = 6,
     ControlWithContext = 7,
-    Unspecified,
+    TIPC_Close = 15,
+    TIPC_CommandRegion = 16, // Start of TIPC commands, this is an offset.
 };
 
 struct CommandHeader {
@@ -57,6 +58,20 @@ struct CommandHeader {
         BitField<10, 4, BufferDescriptorCFlag> buf_c_descriptor_flags;
         BitField<31, 1, u32> enable_handle_descriptor;
     };
+
+    bool IsTipc() const {
+        return type.Value() >= CommandType::TIPC_CommandRegion;
+    }
+
+    bool IsCloseCommand() const {
+        switch (type.Value()) {
+        case CommandType::Close:
+        case CommandType::TIPC_Close:
+            return true;
+        default:
+            return false;
+        }
+    }
 };
 static_assert(sizeof(CommandHeader) == 8, "CommandHeader size is incorrect");
 

src/core/hle/ipc_helpers.h

@@ -15,6 +15,8 @@
 #include "core/hle/ipc.h"
 #include "core/hle/kernel/hle_ipc.h"
 #include "core/hle/kernel/k_client_port.h"
+#include "core/hle/kernel/k_process.h"
+#include "core/hle/kernel/k_resource_limit.h"
 #include "core/hle/kernel/k_session.h"
 #include "core/hle/result.h"
 
@@ -26,7 +28,7 @@ class RequestHelperBase {
 protected:
     Kernel::HLERequestContext* context = nullptr;
     u32* cmdbuf;
-    ptrdiff_t index = 0;
+    u32 index = 0;
 
 public:
     explicit RequestHelperBase(u32* command_buffer) : cmdbuf(command_buffer) {}
@@ -38,7 +40,7 @@ public:
         if (set_to_null) {
             memset(cmdbuf + index, 0, size_in_words * sizeof(u32));
         }
-        index += static_cast<ptrdiff_t>(size_in_words);
+        index += size_in_words;
     }
 
     /**
@@ -51,11 +53,11 @@ public:
     }
 
     u32 GetCurrentOffset() const {
-        return static_cast<u32>(index);
+        return index;
     }
 
     void SetCurrentOffset(u32 offset) {
-        index = static_cast<ptrdiff_t>(offset);
+        index = offset;
     }
 };
 
@@ -69,37 +71,44 @@ public:
         AlwaysMoveHandles = 1,
     };
 
-    explicit ResponseBuilder(Kernel::HLERequestContext& context, u32 normal_params_size,
+    explicit ResponseBuilder(Kernel::HLERequestContext& ctx, u32 normal_params_size,
                              u32 num_handles_to_copy = 0, u32 num_objects_to_move = 0,
                              Flags flags = Flags::None)
-        : RequestHelperBase(context), normal_params_size(normal_params_size),
+        : RequestHelperBase(ctx), normal_params_size(normal_params_size),
           num_handles_to_copy(num_handles_to_copy),
-          num_objects_to_move(num_objects_to_move), kernel{context.kernel} {
+          num_objects_to_move(num_objects_to_move), kernel{ctx.kernel} {
 
         memset(cmdbuf, 0, sizeof(u32) * IPC::COMMAND_BUFFER_LENGTH);
 
-        context.ClearIncomingObjects();
+        ctx.ClearIncomingObjects();
 
         IPC::CommandHeader header{};
 
         // The entire size of the raw data section in u32 units, including the 16 bytes of mandatory
         // padding.
-        u64 raw_data_size = sizeof(IPC::DataPayloadHeader) / 4 + 4 + normal_params_size;
+        u32 raw_data_size = ctx.IsTipc()
+                                ? normal_params_size - 1
+                                : sizeof(IPC::DataPayloadHeader) / 4 + 4 + normal_params_size;
 
         u32 num_handles_to_move{};
         u32 num_domain_objects{};
         const bool always_move_handles{
             (static_cast<u32>(flags) & static_cast<u32>(Flags::AlwaysMoveHandles)) != 0};
-        if (!context.Session()->IsDomain() || always_move_handles) {
+        if (!ctx.Session()->IsDomain() || always_move_handles) {
             num_handles_to_move = num_objects_to_move;
         } else {
             num_domain_objects = num_objects_to_move;
         }
 
-        if (context.Session()->IsDomain()) {
-            raw_data_size += sizeof(DomainMessageHeader) / 4 + num_domain_objects;
+        if (ctx.Session()->IsDomain()) {
+            raw_data_size += static_cast<u32>(sizeof(DomainMessageHeader) / 4 + num_domain_objects);
         }
 
+        if (ctx.IsTipc()) {
+            header.type.Assign(ctx.GetCommandType());
+        }
+
+        ctx.data_size = static_cast<u32>(raw_data_size);
         header.data_size.Assign(static_cast<u32>(raw_data_size));
         if (num_handles_to_copy || num_handles_to_move) {
             header.enable_handle_descriptor.Assign(1);
@@ -111,22 +120,30 @@ public:
             handle_descriptor_header.num_handles_to_copy.Assign(num_handles_to_copy);
             handle_descriptor_header.num_handles_to_move.Assign(num_handles_to_move);
             PushRaw(handle_descriptor_header);
+
+            ctx.handles_offset = index;
+
             Skip(num_handles_to_copy + num_handles_to_move, true);
         }
 
-        AlignWithPadding();
+        if (!ctx.IsTipc()) {
+            AlignWithPadding();
 
-        if (context.Session()->IsDomain() && context.HasDomainMessageHeader()) {
-            IPC::DomainMessageHeader domain_header{};
-            domain_header.num_objects = num_domain_objects;
-            PushRaw(domain_header);
+            if (ctx.Session()->IsDomain() && ctx.HasDomainMessageHeader()) {
+                IPC::DomainMessageHeader domain_header{};
+                domain_header.num_objects = num_domain_objects;
+                PushRaw(domain_header);
+            }
+
+            IPC::DataPayloadHeader data_payload_header{};
+            data_payload_header.magic = Common::MakeMagic('S', 'F', 'C', 'O');
+            PushRaw(data_payload_header);
         }
 
-        IPC::DataPayloadHeader data_payload_header{};
-        data_payload_header.magic = Common::MakeMagic('S', 'F', 'C', 'O');
-        PushRaw(data_payload_header);
+        data_payload_index = index;
 
-        datapayload_index = index;
+        ctx.data_payload_offset = index;
+        ctx.domain_offset = index + raw_data_size / 4;
     }
 
     template <class T>
@@ -134,6 +151,9 @@ public:
         if (context->Session()->IsDomain()) {
             context->AddDomainObject(std::move(iface));
         } else {
+            // kernel.CurrentProcess()->GetResourceLimit()->Reserve(
+            //    Kernel::LimitableResource::Sessions, 1);
+
             auto* session = Kernel::KSession::Create(kernel);
             session->Initialize(nullptr, iface->GetServiceName());
 
@@ -152,7 +172,7 @@ public:
         const std::size_t num_move_objects = context->NumMoveObjects();
         ASSERT_MSG(!num_domain_objects || !num_move_objects,
                    "cannot move normal handles and domain objects");
-        ASSERT_MSG((index - datapayload_index) == normal_params_size,
+        ASSERT_MSG((index - data_payload_index) == normal_params_size,
                    "normal_params_size value is incorrect");
         ASSERT_MSG((num_domain_objects + num_move_objects) == num_objects_to_move,
                    "num_objects_to_move value is incorrect");
@@ -229,14 +249,14 @@ private:
     u32 normal_params_size{};
     u32 num_handles_to_copy{};
     u32 num_objects_to_move{}; ///< Domain objects or move handles, context dependent
-    std::ptrdiff_t datapayload_index{};
+    u32 data_payload_index{};
     Kernel::KernelCore& kernel;
 };
 
 /// Push ///
 
 inline void ResponseBuilder::PushImpl(s32 value) {
-    cmdbuf[index++] = static_cast<u32>(value);
+    cmdbuf[index++] = value;
 }
 
 inline void ResponseBuilder::PushImpl(u32 value) {
@@ -341,9 +361,9 @@ class RequestParser : public RequestHelperBase {
 public:
     explicit RequestParser(u32* command_buffer) : RequestHelperBase(command_buffer) {}
 
-    explicit RequestParser(Kernel::HLERequestContext& context) : RequestHelperBase(context) {
-        ASSERT_MSG(context.GetDataPayloadOffset(), "context is incomplete");
-        Skip(context.GetDataPayloadOffset(), false);
+    explicit RequestParser(Kernel::HLERequestContext& ctx) : RequestHelperBase(ctx) {
+        ASSERT_MSG(ctx.GetDataPayloadOffset(), "context is incomplete");
+        Skip(ctx.GetDataPayloadOffset(), false);
         // Skip the u64 command id, it's already stored in the context
         static constexpr u32 CommandIdSize = 2;
         Skip(CommandIdSize, false);

src/core/hle/kernel/hle_ipc.cpp

@@ -55,7 +55,7 @@ void HLERequestContext::ParseCommandBuffer(const KHandleTable& handle_table, u32
     IPC::RequestParser rp(src_cmdbuf);
     command_header = rp.PopRaw<IPC::CommandHeader>();
 
-    if (command_header->type == IPC::CommandType::Close) {
+    if (command_header->IsCloseCommand()) {
         // Close does not populate the rest of the IPC header
         return;
     }
@@ -99,39 +99,43 @@ void HLERequestContext::ParseCommandBuffer(const KHandleTable& handle_table, u32
         buffer_w_desciptors.push_back(rp.PopRaw<IPC::BufferDescriptorABW>());
     }
 
-    buffer_c_offset = rp.GetCurrentOffset() + command_header->data_size;
+    const auto buffer_c_offset = rp.GetCurrentOffset() + command_header->data_size;
 
-    // Padding to align to 16 bytes
-    rp.AlignWithPadding();
+    if (!command_header->IsTipc()) {
+        // Padding to align to 16 bytes
+        rp.AlignWithPadding();
 
-    if (Session()->IsDomain() && ((command_header->type == IPC::CommandType::Request ||
-                                   command_header->type == IPC::CommandType::RequestWithContext) ||
-                                  !incoming)) {
-        // If this is an incoming message, only CommandType "Request" has a domain header
-        // All outgoing domain messages have the domain header, if only incoming has it
-        if (incoming || domain_message_header) {
-            domain_message_header = rp.PopRaw<IPC::DomainMessageHeader>();
-        } else {
-            if (Session()->IsDomain()) {
-                LOG_WARNING(IPC, "Domain request has no DomainMessageHeader!");
+        if (Session()->IsDomain() &&
+            ((command_header->type == IPC::CommandType::Request ||
+              command_header->type == IPC::CommandType::RequestWithContext) ||
+             !incoming)) {
+            // If this is an incoming message, only CommandType "Request" has a domain header
+            // All outgoing domain messages have the domain header, if only incoming has it
+            if (incoming || domain_message_header) {
+                domain_message_header = rp.PopRaw<IPC::DomainMessageHeader>();
+            } else {
+                if (Session()->IsDomain()) {
+                    LOG_WARNING(IPC, "Domain request has no DomainMessageHeader!");
+                }
             }
         }
-    }
 
-    data_payload_header = rp.PopRaw<IPC::DataPayloadHeader>();
+        data_payload_header = rp.PopRaw<IPC::DataPayloadHeader>();
 
-    data_payload_offset = rp.GetCurrentOffset();
+        data_payload_offset = rp.GetCurrentOffset();
 
-    if (domain_message_header && domain_message_header->command ==
-                                     IPC::DomainMessageHeader::CommandType::CloseVirtualHandle) {
-        // CloseVirtualHandle command does not have SFC* or any data
-        return;
-    }
+        if (domain_message_header &&
+            domain_message_header->command ==
+                IPC::DomainMessageHeader::CommandType::CloseVirtualHandle) {
+            // CloseVirtualHandle command does not have SFC* or any data
+            return;
+        }
 
-    if (incoming) {
-        ASSERT(data_payload_header->magic == Common::MakeMagic('S', 'F', 'C', 'I'));
-    } else {
-        ASSERT(data_payload_header->magic == Common::MakeMagic('S', 'F', 'C', 'O'));
+        if (incoming) {
+            ASSERT(data_payload_header->magic == Common::MakeMagic('S', 'F', 'C', 'I'));
+        } else {
+            ASSERT(data_payload_header->magic == Common::MakeMagic('S', 'F', 'C', 'O'));
+        }
     }
 
     rp.SetCurrentOffset(buffer_c_offset);
@@ -166,84 +170,67 @@ void HLERequestContext::ParseCommandBuffer(const KHandleTable& handle_table, u32
 ResultCode HLERequestContext::PopulateFromIncomingCommandBuffer(const KHandleTable& handle_table,
                                                                 u32_le* src_cmdbuf) {
     ParseCommandBuffer(handle_table, src_cmdbuf, true);
-    if (command_header->type == IPC::CommandType::Close) {
+
+    if (command_header->IsCloseCommand()) {
         // Close does not populate the rest of the IPC header
         return RESULT_SUCCESS;
     }
 
-    // The data_size already includes the payload header, the padding and the domain header.
-    std::size_t size = data_payload_offset + command_header->data_size -
-                       sizeof(IPC::DataPayloadHeader) / sizeof(u32) - 4;
-    if (domain_message_header)
-        size -= sizeof(IPC::DomainMessageHeader) / sizeof(u32);
-    std::copy_n(src_cmdbuf, size, cmd_buf.begin());
+    std::copy_n(src_cmdbuf, IPC::COMMAND_BUFFER_LENGTH, cmd_buf.begin());
+
     return RESULT_SUCCESS;
 }
 
-ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(KThread& thread) {
-    auto& owner_process = *thread.GetOwnerProcess();
+ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_thread) {
+    auto current_offset = handles_offset;
+    auto& owner_process = *requesting_thread.GetOwnerProcess();
     auto& handle_table = owner_process.GetHandleTable();
 
-    std::array<u32, IPC::COMMAND_BUFFER_LENGTH> dst_cmdbuf;
-    memory.ReadBlock(owner_process, thread.GetTLSAddress(), dst_cmdbuf.data(),
-                     dst_cmdbuf.size() * sizeof(u32));
-
-    // The header was already built in the internal command buffer. Attempt to parse it to verify
-    // the integrity and then copy it over to the target command buffer.
-    ParseCommandBuffer(handle_table, cmd_buf.data(), false);
-
     // The data_size already includes the payload header, the padding and the domain header.
-    std::size_t size = data_payload_offset + command_header->data_size -
-                       sizeof(IPC::DataPayloadHeader) / sizeof(u32) - 4;
-    if (domain_message_header)
-        size -= sizeof(IPC::DomainMessageHeader) / sizeof(u32);
+    std::size_t size{};
 
-    std::copy_n(cmd_buf.begin(), size, dst_cmdbuf.data());
-
-    if (command_header->enable_handle_descriptor) {
-        ASSERT_MSG(!move_objects.empty() || !copy_objects.empty(),
-                   "Handle descriptor bit set but no handles to translate");
-        // We write the translated handles at a specific offset in the command buffer, this space
-        // was already reserved when writing the header.
-        std::size_t current_offset =
-            (sizeof(IPC::CommandHeader) + sizeof(IPC::HandleDescriptorHeader)) / sizeof(u32);
-        ASSERT_MSG(!handle_descriptor_header->send_current_pid, "Sending PID is not implemented");
-
-        ASSERT(copy_objects.size() == handle_descriptor_header->num_handles_to_copy);
-        ASSERT(move_objects.size() == handle_descriptor_header->num_handles_to_move);
-
-        // We don't make a distinction between copy and move handles when translating since HLE
-        // services don't deal with handles directly. However, the guest applications might check
-        // for specific values in each of these descriptors.
-        for (auto& object : copy_objects) {
-            ASSERT(object != nullptr);
-            R_TRY(handle_table.Add(&dst_cmdbuf[current_offset++], object));
-        }
-
-        for (auto& object : move_objects) {
-            ASSERT(object != nullptr);
-            R_TRY(handle_table.Add(&dst_cmdbuf[current_offset++], object));
+    if (IsTipc()) {
+        size = cmd_buf.size();
+    } else {
+        size = data_payload_offset + data_size - sizeof(IPC::DataPayloadHeader) / sizeof(u32) - 4;
+        if (Session()->IsDomain()) {
+            size -= sizeof(IPC::DomainMessageHeader) / sizeof(u32);
         }
     }
 
-    // TODO(Subv): Translate the X/A/B/W buffers.
+    for (auto& object : copy_objects) {
+        Handle handle{};
+        if (object) {
+            R_TRY(handle_table.Add(&handle, object));
+        }
+        cmd_buf[current_offset++] = handle;
+    }
+    for (auto& object : move_objects) {
+        Handle handle{};
+        if (object) {
+            R_TRY(handle_table.Add(&handle, object));
 
-    if (Session()->IsDomain() && domain_message_header) {
-        ASSERT(domain_message_header->num_objects == domain_objects.size());
-        // Write the domain objects to the command buffer, these go after the raw untranslated data.
-        // TODO(Subv): This completely ignores C buffers.
-        std::size_t domain_offset = size - domain_message_header->num_objects;
+            // Close our reference to the object, as it is being moved to the caller.
+            object->Close();
+        }
+        cmd_buf[current_offset++] = handle;
+    }
 
+    // Write the domain objects to the command buffer, these go after the raw untranslated data.
+    // TODO(Subv): This completely ignores C buffers.
+
+    if (Session()->IsDomain()) {
+        current_offset = domain_offset - static_cast<u32>(domain_objects.size());
         for (const auto& object : domain_objects) {
             server_session->AppendDomainRequestHandler(object);
-            dst_cmdbuf[domain_offset++] =
+            cmd_buf[current_offset++] =
                 static_cast<u32_le>(server_session->NumDomainRequestHandlers());
         }
     }
 
     // Copy the translated command buffer back into the thread's command buffer area.
-    memory.WriteBlock(owner_process, thread.GetTLSAddress(), dst_cmdbuf.data(),
-                      dst_cmdbuf.size() * sizeof(u32));
+    memory.WriteBlock(owner_process, requesting_thread.GetTLSAddress(), cmd_buf.data(),
+                      size * sizeof(u32));
 
     return RESULT_SUCCESS;
 }

src/core/hle/kernel/hle_ipc.h

@@ -66,7 +66,8 @@ public:
      * this request (ServerSession, Originator thread, Translated command buffer, etc).
      * @returns ResultCode the result code of the translate operation.
      */
-    virtual ResultCode HandleSyncRequest(Kernel::HLERequestContext& context) = 0;
+    virtual ResultCode HandleSyncRequest(Kernel::KServerSession& session,
+                                         Kernel::HLERequestContext& context) = 0;
 
     /**
      * Signals that a client has just connected to this HLE handler and keeps the
@@ -126,17 +127,30 @@ public:
                                                  u32_le* src_cmdbuf);
 
     /// Writes data from this context back to the requesting process/thread.
-    ResultCode WriteToOutgoingCommandBuffer(KThread& thread);
+    ResultCode WriteToOutgoingCommandBuffer(KThread& requesting_thread);
+
+    u32_le GetHipcCommand() const {
+        return command;
+    }
+
+    u32_le GetTipcCommand() const {
+        return static_cast<u32_le>(command_header->type.Value()) -
+               static_cast<u32_le>(IPC::CommandType::TIPC_CommandRegion);
+    }
 
     u32_le GetCommand() const {
-        return command;
+        return command_header->IsTipc() ? GetTipcCommand() : GetHipcCommand();
+    }
+
+    bool IsTipc() const {
+        return command_header->IsTipc();
     }
 
     IPC::CommandType GetCommandType() const {
         return command_header->type;
     }
 
-    unsigned GetDataPayloadOffset() const {
+    u32 GetDataPayloadOffset() const {
         return data_payload_offset;
     }
 
@@ -291,8 +305,10 @@ private:
     std::vector<IPC::BufferDescriptorABW> buffer_w_desciptors;
     std::vector<IPC::BufferDescriptorC> buffer_c_desciptors;
 
-    unsigned data_payload_offset{};
-    unsigned buffer_c_offset{};
+    u32 data_payload_offset{};
+    u32 handles_offset{};
+    u32 domain_offset{};
+    u32 data_size{};
     u32_le command{};
 
     std::vector<std::shared_ptr<SessionRequestHandler>> domain_request_handlers;

src/core/hle/kernel/k_auto_object.h

@@ -177,7 +177,7 @@ class KAutoObjectWithListContainer;
 
 class KAutoObjectWithList : public KAutoObject {
 public:
-    explicit KAutoObjectWithList(KernelCore& kernel_) : KAutoObject(kernel_), kernel(kernel_) {}
+    explicit KAutoObjectWithList(KernelCore& kernel_) : KAutoObject(kernel_) {}
 
     static int Compare(const KAutoObjectWithList& lhs, const KAutoObjectWithList& rhs) {
         const u64 lid = lhs.GetId();
@@ -204,11 +204,7 @@ public:
 private:
     friend class KAutoObjectWithListContainer;
 
-private:
     Common::IntrusiveRedBlackTreeNode list_node;
-
-protected:
-    KernelCore& kernel;
 };
 
 template <typename T>

src/core/hle/kernel/k_client_port.cpp

@@ -13,7 +13,7 @@
 
 namespace Kernel {
 
-KClientPort::KClientPort(KernelCore& kernel) : KSynchronizationObject{kernel} {}
+KClientPort::KClientPort(KernelCore& kernel_) : KSynchronizationObject{kernel_} {}
 KClientPort::~KClientPort() = default;
 
 void KClientPort::Initialize(KPort* parent_, s32 max_sessions_, std::string&& name_) {
@@ -58,9 +58,9 @@ bool KClientPort::IsSignaled() const {
 
 ResultCode KClientPort::CreateSession(KClientSession** out) {
     // Reserve a new session from the resource limit.
-    KScopedResourceReservation session_reservation(kernel.CurrentProcess()->GetResourceLimit(),
-                                                   LimitableResource::Sessions);
-    R_UNLESS(session_reservation.Succeeded(), ResultLimitReached);
+    // KScopedResourceReservation session_reservation(kernel.CurrentProcess()->GetResourceLimit(),
+    //                                               LimitableResource::Sessions);
+    // R_UNLESS(session_reservation.Succeeded(), ResultLimitReached);
 
     // Update the session counts.
     {
@@ -91,7 +91,7 @@ ResultCode KClientPort::CreateSession(KClientSession** out) {
     // Create a new session.
     KSession* session = KSession::Create(kernel);
     if (session == nullptr) {
-        /* Decrement the session count. */
+        // Decrement the session count.
         const auto prev = num_sessions--;
         if (prev == max_sessions) {
             this->NotifyAvailable();
@@ -104,7 +104,7 @@ ResultCode KClientPort::CreateSession(KClientSession** out) {
     session->Initialize(this, parent->GetName());
 
     // Commit the session reservation.
-    session_reservation.Commit();
+    // session_reservation.Commit();
 
     // Register the session.
     KSession::Register(kernel, session);

src/core/hle/kernel/k_client_port.h

@@ -21,7 +21,7 @@ class KClientPort final : public KSynchronizationObject {
     KERNEL_AUTOOBJECT_TRAITS(KClientPort, KSynchronizationObject);
 
 public:
-    explicit KClientPort(KernelCore& kernel);
+    explicit KClientPort(KernelCore& kernel_);
     virtual ~KClientPort() override;
 
     void Initialize(KPort* parent_, s32 max_sessions_, std::string&& name_);

src/core/hle/kernel/k_client_session.cpp

@@ -12,7 +12,8 @@
 
 namespace Kernel {
 
-KClientSession::KClientSession(KernelCore& kernel) : KAutoObjectWithSlabHeapAndContainer{kernel} {}
+KClientSession::KClientSession(KernelCore& kernel_)
+    : KAutoObjectWithSlabHeapAndContainer{kernel_} {}
 KClientSession::~KClientSession() = default;
 
 void KClientSession::Destroy() {

src/core/hle/kernel/k_client_session.h

@@ -33,7 +33,7 @@ class KClientSession final
     KERNEL_AUTOOBJECT_TRAITS(KClientSession, KAutoObject);
 
 public:
-    explicit KClientSession(KernelCore& kernel);
+    explicit KClientSession(KernelCore& kernel_);
     virtual ~KClientSession();
 
     void Initialize(KSession* parent_, std::string&& name_) {

src/core/hle/kernel/k_condition_variable.cpp

@@ -254,8 +254,7 @@ void KConditionVariable::Signal(u64 cv_key, s32 count) {
     }
 
     // Close threads in the list.
-    for (auto it = thread_list.begin(); it != thread_list.end();
-         it = thread_list.erase(kernel, it)) {
+    for (auto it = thread_list.begin(); it != thread_list.end(); it = thread_list.erase(it)) {
         (*it).Close();
     }
 }

src/core/hle/kernel/k_event.cpp

@@ -8,8 +8,9 @@
 
 namespace Kernel {
 
-KEvent::KEvent(KernelCore& kernel)
-    : KAutoObjectWithSlabHeapAndContainer{kernel}, readable_event{kernel}, writable_event{kernel} {}
+KEvent::KEvent(KernelCore& kernel_)
+    : KAutoObjectWithSlabHeapAndContainer{kernel_}, readable_event{kernel_}, writable_event{
+                                                                                 kernel_} {}
 
 KEvent::~KEvent() = default;
 

src/core/hle/kernel/k_event.h

@@ -19,7 +19,7 @@ class KEvent final : public KAutoObjectWithSlabHeapAndContainer<KEvent, KAutoObj
     KERNEL_AUTOOBJECT_TRAITS(KEvent, KAutoObject);
 
 public:
-    explicit KEvent(KernelCore& kernel);
+    explicit KEvent(KernelCore& kernel_);
     virtual ~KEvent();
 
     void Initialize(std::string&& name);

src/core/hle/kernel/k_linked_list.h

@@ -124,7 +124,7 @@ public:
 
     ~KLinkedList() {
         // Erase all elements.
-        for (auto it = this->begin(); it != this->end(); it = this->erase(kernel, it)) {
+        for (auto it = begin(); it != end(); it = erase(it)) {
         }
 
         // Ensure we succeeded.
@@ -223,7 +223,7 @@ public:
         this->erase(this->begin());
     }
 
-    iterator erase(KernelCore& kernel, const iterator pos) {
+    iterator erase(const iterator pos) {
         KLinkedListNode* freed_node = std::addressof(*pos.m_base_it);
         iterator ret = iterator(BaseList::erase(pos.m_base_it));
         KLinkedListNode::Free(kernel, freed_node);

src/core/hle/kernel/k_memory_block_manager.cpp

@@ -17,8 +17,8 @@ KMemoryBlockManager::KMemoryBlockManager(VAddr start_addr, VAddr end_addr)
 KMemoryBlockManager::iterator KMemoryBlockManager::FindIterator(VAddr addr) {
     auto node{memory_block_tree.begin()};
     while (node != end()) {
-        const VAddr end_addr{node->GetNumPages() * PageSize + node->GetAddress()};
-        if (node->GetAddress() <= addr && end_addr - 1 >= addr) {
+        const VAddr node_end_addr{node->GetNumPages() * PageSize + node->GetAddress()};
+        if (node->GetAddress() <= addr && node_end_addr - 1 >= addr) {
             return node;
         }
         node = std::next(node);
@@ -67,7 +67,7 @@ void KMemoryBlockManager::Update(VAddr addr, std::size_t num_pages, KMemoryState
                                  KMemoryPermission prev_perm, KMemoryAttribute prev_attribute,
                                  KMemoryState state, KMemoryPermission perm,
                                  KMemoryAttribute attribute) {
-    const VAddr end_addr{addr + num_pages * PageSize};
+    const VAddr update_end_addr{addr + num_pages * PageSize};
     iterator node{memory_block_tree.begin()};
 
     prev_attribute |= KMemoryAttribute::IpcAndDeviceMapped;
@@ -78,7 +78,7 @@ void KMemoryBlockManager::Update(VAddr addr, std::size_t num_pages, KMemoryState
         const VAddr cur_addr{block->GetAddress()};
         const VAddr cur_end_addr{block->GetNumPages() * PageSize + cur_addr};
 
-        if (addr < cur_end_addr && cur_addr < end_addr) {
+        if (addr < cur_end_addr && cur_addr < update_end_addr) {
             if (!block->HasProperties(prev_state, prev_perm, prev_attribute)) {
                 node = next_node;
                 continue;
@@ -89,8 +89,8 @@ void KMemoryBlockManager::Update(VAddr addr, std::size_t num_pages, KMemoryState
                 memory_block_tree.insert(node, block->Split(addr));
             }
 
-            if (end_addr < cur_end_addr) {
-                new_node = memory_block_tree.insert(node, block->Split(end_addr));
+            if (update_end_addr < cur_end_addr) {
+                new_node = memory_block_tree.insert(node, block->Split(update_end_addr));
             }
 
             new_node->Update(state, perm, attribute);
@@ -98,7 +98,7 @@ void KMemoryBlockManager::Update(VAddr addr, std::size_t num_pages, KMemoryState
             MergeAdjacent(new_node, next_node);
         }
 
-        if (cur_end_addr - 1 >= end_addr - 1) {
+        if (cur_end_addr - 1 >= update_end_addr - 1) {
             break;
         }
 
@@ -108,7 +108,7 @@ void KMemoryBlockManager::Update(VAddr addr, std::size_t num_pages, KMemoryState
 
 void KMemoryBlockManager::Update(VAddr addr, std::size_t num_pages, KMemoryState state,
                                  KMemoryPermission perm, KMemoryAttribute attribute) {
-    const VAddr end_addr{addr + num_pages * PageSize};
+    const VAddr update_end_addr{addr + num_pages * PageSize};
     iterator node{memory_block_tree.begin()};
 
     while (node != memory_block_tree.end()) {
@@ -117,15 +117,15 @@ void KMemoryBlockManager::Update(VAddr addr, std::size_t num_pages, KMemoryState
         const VAddr cur_addr{block->GetAddress()};
         const VAddr cur_end_addr{block->GetNumPages() * PageSize + cur_addr};
 
-        if (addr < cur_end_addr && cur_addr < end_addr) {
+        if (addr < cur_end_addr && cur_addr < update_end_addr) {
             iterator new_node{node};
 
             if (addr > cur_addr) {
                 memory_block_tree.insert(node, block->Split(addr));
             }
 
-            if (end_addr < cur_end_addr) {
-                new_node = memory_block_tree.insert(node, block->Split(end_addr));
+            if (update_end_addr < cur_end_addr) {
+                new_node = memory_block_tree.insert(node, block->Split(update_end_addr));
             }
 
             new_node->Update(state, perm, attribute);
@@ -133,7 +133,7 @@ void KMemoryBlockManager::Update(VAddr addr, std::size_t num_pages, KMemoryState
             MergeAdjacent(new_node, next_node);
         }
 
-        if (cur_end_addr - 1 >= end_addr - 1) {
+        if (cur_end_addr - 1 >= update_end_addr - 1) {
             break;
         }
 
@@ -143,7 +143,7 @@ void KMemoryBlockManager::Update(VAddr addr, std::size_t num_pages, KMemoryState
 
 void KMemoryBlockManager::UpdateLock(VAddr addr, std::size_t num_pages, LockFunc&& lock_func,
                                      KMemoryPermission perm) {
-    const VAddr end_addr{addr + num_pages * PageSize};
+    const VAddr update_end_addr{addr + num_pages * PageSize};
     iterator node{memory_block_tree.begin()};
 
     while (node != memory_block_tree.end()) {
@@ -152,15 +152,15 @@ void KMemoryBlockManager::UpdateLock(VAddr addr, std::size_t num_pages, LockFunc
         const VAddr cur_addr{block->GetAddress()};
         const VAddr cur_end_addr{block->GetNumPages() * PageSize + cur_addr};
 
-        if (addr < cur_end_addr && cur_addr < end_addr) {
+        if (addr < cur_end_addr && cur_addr < update_end_addr) {
             iterator new_node{node};
 
             if (addr > cur_addr) {
                 memory_block_tree.insert(node, block->Split(addr));
             }
 
-            if (end_addr < cur_end_addr) {
-                new_node = memory_block_tree.insert(node, block->Split(end_addr));
+            if (update_end_addr < cur_end_addr) {
+                new_node = memory_block_tree.insert(node, block->Split(update_end_addr));
             }
 
             lock_func(new_node, perm);
@@ -168,7 +168,7 @@ void KMemoryBlockManager::UpdateLock(VAddr addr, std::size_t num_pages, LockFunc
             MergeAdjacent(new_node, next_node);
         }
 
-        if (cur_end_addr - 1 >= end_addr - 1) {
+        if (cur_end_addr - 1 >= update_end_addr - 1) {
             break;
         }
 

src/core/hle/kernel/k_memory_region.h

@@ -82,9 +82,9 @@ public:
         type_id = type;
     }
 
-    constexpr bool Contains(u64 address) const {
+    constexpr bool Contains(u64 addr) const {
         ASSERT(this->GetEndAddress() != 0);
-        return this->GetAddress() <= address && address <= this->GetLastAddress();
+        return this->GetAddress() <= addr && addr <= this->GetLastAddress();
     }
 
     constexpr bool IsDerivedFrom(u32 type) const {

src/core/hle/kernel/k_port.cpp

@@ -9,8 +9,8 @@
 
 namespace Kernel {
 
-KPort::KPort(KernelCore& kernel)
-    : KAutoObjectWithSlabHeapAndContainer{kernel}, server{kernel}, client{kernel} {}
+KPort::KPort(KernelCore& kernel_)
+    : KAutoObjectWithSlabHeapAndContainer{kernel_}, server{kernel_}, client{kernel_} {}
 
 KPort::~KPort() = default;
 

src/core/hle/kernel/k_port.h

@@ -21,7 +21,7 @@ class KPort final : public KAutoObjectWithSlabHeapAndContainer<KPort, KAutoObjec
     KERNEL_AUTOOBJECT_TRAITS(KPort, KAutoObject);
 
 public:
-    explicit KPort(KernelCore& kernel);
+    explicit KPort(KernelCore& kernel_);
     virtual ~KPort();
 
     static void PostDestroy([[maybe_unused]] uintptr_t arg) {}

src/core/hle/kernel/k_process.cpp

@@ -118,11 +118,11 @@ private:
     std::bitset<num_slot_entries> is_slot_used;
 };
 
-ResultCode KProcess::Initialize(KProcess* process, Core::System& system, std::string name,
+ResultCode KProcess::Initialize(KProcess* process, Core::System& system, std::string process_name,
                                 ProcessType type) {
     auto& kernel = system.Kernel();
 
-    process->name = std::move(name);
+    process->name = std::move(process_name);
 
     process->resource_limit = kernel.GetSystemResourceLimit();
     process->status = ProcessStatus::Created;
@@ -373,8 +373,8 @@ void KProcess::Run(s32 main_thread_priority, u64 stack_size) {
 void KProcess::PrepareForTermination() {
     ChangeStatus(ProcessStatus::Exiting);
 
-    const auto stop_threads = [this](const std::vector<KThread*>& thread_list) {
-        for (auto& thread : thread_list) {
+    const auto stop_threads = [this](const std::vector<KThread*>& in_thread_list) {
+        for (auto& thread : in_thread_list) {
             if (thread->GetOwnerProcess() != this)
                 continue;
 
@@ -491,10 +491,10 @@ bool KProcess::IsSignaled() const {
     return is_signaled;
 }
 
-KProcess::KProcess(KernelCore& kernel)
-    : KAutoObjectWithSlabHeapAndContainer{kernel},
-      page_table{std::make_unique<KPageTable>(kernel.System())}, handle_table{kernel},
-      address_arbiter{kernel.System()}, condition_var{kernel.System()}, state_lock{kernel} {}
+KProcess::KProcess(KernelCore& kernel_)
+    : KAutoObjectWithSlabHeapAndContainer{kernel_},
+      page_table{std::make_unique<KPageTable>(kernel_.System())}, handle_table{kernel_},
+      address_arbiter{kernel_.System()}, condition_var{kernel_.System()}, state_lock{kernel_} {}
 
 KProcess::~KProcess() = default;
 

src/core/hle/kernel/k_process.h

@@ -67,7 +67,7 @@ class KProcess final
     KERNEL_AUTOOBJECT_TRAITS(KProcess, KSynchronizationObject);
 
 public:
-    explicit KProcess(KernelCore& kernel);
+    explicit KProcess(KernelCore& kernel_);
     ~KProcess() override;
 
     enum : u64 {
@@ -90,7 +90,7 @@ public:
 
     static constexpr std::size_t RANDOM_ENTROPY_SIZE = 4;
 
-    static ResultCode Initialize(KProcess* process, Core::System& system, std::string name,
+    static ResultCode Initialize(KProcess* process, Core::System& system, std::string process_name,
                                  ProcessType type);
 
     /// Gets a reference to the process' page table.

src/core/hle/kernel/k_readable_event.cpp

@@ -12,7 +12,7 @@
 
 namespace Kernel {
 
-KReadableEvent::KReadableEvent(KernelCore& kernel) : KSynchronizationObject{kernel} {}
+KReadableEvent::KReadableEvent(KernelCore& kernel_) : KSynchronizationObject{kernel_} {}
 
 KReadableEvent::~KReadableEvent() = default;
 

src/core/hle/kernel/k_readable_event.h

@@ -18,7 +18,7 @@ class KReadableEvent : public KSynchronizationObject {
     KERNEL_AUTOOBJECT_TRAITS(KReadableEvent, KSynchronizationObject);
 
 public:
-    explicit KReadableEvent(KernelCore& kernel);
+    explicit KReadableEvent(KernelCore& kernel_);
     ~KReadableEvent() override;
 
     void Initialize(KEvent* parent_, std::string&& name_) {

src/core/hle/kernel/k_resource_limit.cpp

@@ -10,8 +10,8 @@
 namespace Kernel {
 constexpr s64 DefaultTimeout = 10000000000; // 10 seconds
 
-KResourceLimit::KResourceLimit(KernelCore& kernel)
-    : KAutoObjectWithSlabHeapAndContainer{kernel}, lock{kernel}, cond_var{kernel} {}
+KResourceLimit::KResourceLimit(KernelCore& kernel_)
+    : KAutoObjectWithSlabHeapAndContainer{kernel_}, lock{kernel_}, cond_var{kernel_} {}
 KResourceLimit::~KResourceLimit() = default;
 
 void KResourceLimit::Initialize(const Core::Timing::CoreTiming* core_timing_) {

src/core/hle/kernel/k_resource_limit.h

@@ -36,7 +36,7 @@ class KResourceLimit final
     KERNEL_AUTOOBJECT_TRAITS(KResourceLimit, KAutoObject);
 
 public:
-    explicit KResourceLimit(KernelCore& kernel);
+    explicit KResourceLimit(KernelCore& kernel_);
     virtual ~KResourceLimit();
 
     void Initialize(const Core::Timing::CoreTiming* core_timing_);

src/core/hle/kernel/k_scheduler.cpp

@@ -259,7 +259,7 @@ void KScheduler::OnThreadAffinityMaskChanged(KernelCore& kernel, KThread* thread
     }
 }
 
-void KScheduler::RotateScheduledQueue(s32 core_id, s32 priority) {
+void KScheduler::RotateScheduledQueue(s32 cpu_core_id, s32 priority) {
     ASSERT(system.GlobalSchedulerContext().IsLocked());
 
     // Get a reference to the priority queue.
@@ -267,7 +267,7 @@ void KScheduler::RotateScheduledQueue(s32 core_id, s32 priority) {
     auto& priority_queue = GetPriorityQueue(kernel);
 
     // Rotate the front of the queue to the end.
-    KThread* top_thread = priority_queue.GetScheduledFront(core_id, priority);
+    KThread* top_thread = priority_queue.GetScheduledFront(cpu_core_id, priority);
     KThread* next_thread = nullptr;
     if (top_thread != nullptr) {
         next_thread = priority_queue.MoveToScheduledBack(top_thread);
@@ -279,7 +279,7 @@ void KScheduler::RotateScheduledQueue(s32 core_id, s32 priority) {
 
     // While we have a suggested thread, try to migrate it!
     {
-        KThread* suggested = priority_queue.GetSuggestedFront(core_id, priority);
+        KThread* suggested = priority_queue.GetSuggestedFront(cpu_core_id, priority);
         while (suggested != nullptr) {
             // Check if the suggested thread is the top thread on its core.
             const s32 suggested_core = suggested->GetActiveCore();
@@ -300,7 +300,7 @@ void KScheduler::RotateScheduledQueue(s32 core_id, s32 priority) {
                 // to the front of the queue.
                 if (top_on_suggested_core == nullptr ||
                     top_on_suggested_core->GetPriority() >= HighestCoreMigrationAllowedPriority) {
-                    suggested->SetActiveCore(core_id);
+                    suggested->SetActiveCore(cpu_core_id);
                     priority_queue.ChangeCore(suggested_core, suggested, true);
                     IncrementScheduledCount(suggested);
                     break;
@@ -308,22 +308,22 @@ void KScheduler::RotateScheduledQueue(s32 core_id, s32 priority) {
             }
 
             // Get the next suggestion.
-            suggested = priority_queue.GetSamePriorityNext(core_id, suggested);
+            suggested = priority_queue.GetSamePriorityNext(cpu_core_id, suggested);
         }
     }
 
     // Now that we might have migrated a thread with the same priority, check if we can do better.
 
     {
-        KThread* best_thread = priority_queue.GetScheduledFront(core_id);
+        KThread* best_thread = priority_queue.GetScheduledFront(cpu_core_id);
         if (best_thread == GetCurrentThread()) {
-            best_thread = priority_queue.GetScheduledNext(core_id, best_thread);
+            best_thread = priority_queue.GetScheduledNext(cpu_core_id, best_thread);
         }
 
         // If the best thread we can choose has a priority the same or worse than ours, try to
         // migrate a higher priority thread.
         if (best_thread != nullptr && best_thread->GetPriority() >= priority) {
-            KThread* suggested = priority_queue.GetSuggestedFront(core_id);
+            KThread* suggested = priority_queue.GetSuggestedFront(cpu_core_id);
             while (suggested != nullptr) {
                 // If the suggestion's priority is the same as ours, don't bother.
                 if (suggested->GetPriority() >= best_thread->GetPriority()) {
@@ -342,7 +342,7 @@ void KScheduler::RotateScheduledQueue(s32 core_id, s32 priority) {
                     if (top_on_suggested_core == nullptr ||
                         top_on_suggested_core->GetPriority() >=
                             HighestCoreMigrationAllowedPriority) {
-                        suggested->SetActiveCore(core_id);
+                        suggested->SetActiveCore(cpu_core_id);
                         priority_queue.ChangeCore(suggested_core, suggested, true);
                         IncrementScheduledCount(suggested);
                         break;
@@ -350,7 +350,7 @@ void KScheduler::RotateScheduledQueue(s32 core_id, s32 priority) {
                 }
 
                 // Get the next suggestion.
-                suggested = priority_queue.GetSuggestedNext(core_id, suggested);
+                suggested = priority_queue.GetSuggestedNext(cpu_core_id, suggested);
             }
         }
     }

src/core/hle/kernel/k_scheduler.h

@@ -141,7 +141,7 @@ private:
 
     [[nodiscard]] static KSchedulerPriorityQueue& GetPriorityQueue(KernelCore& kernel);
 
-    void RotateScheduledQueue(s32 core_id, s32 priority);
+    void RotateScheduledQueue(s32 cpu_core_id, s32 priority);
 
     void Schedule() {
         ASSERT(GetCurrentThread()->GetDisableDispatchCount() == 1);

src/core/hle/kernel/k_server_port.cpp

@@ -14,7 +14,7 @@
 
 namespace Kernel {
 
-KServerPort::KServerPort(KernelCore& kernel) : KSynchronizationObject{kernel} {}
+KServerPort::KServerPort(KernelCore& kernel_) : KSynchronizationObject{kernel_} {}
 KServerPort::~KServerPort() = default;
 
 void KServerPort::Initialize(KPort* parent_, std::string&& name_) {

src/core/hle/kernel/k_server_port.h

@@ -29,7 +29,7 @@ private:
     using SessionList = boost::intrusive::list<KServerSession>;
 
 public:
-    explicit KServerPort(KernelCore& kernel);
+    explicit KServerPort(KernelCore& kernel_);
     virtual ~KServerPort() override;
 
     using HLEHandler = std::shared_ptr<SessionRequestHandler>;

src/core/hle/kernel/k_server_session.cpp

@@ -23,7 +23,7 @@
 
 namespace Kernel {
 
-KServerSession::KServerSession(KernelCore& kernel) : KSynchronizationObject{kernel} {}
+KServerSession::KServerSession(KernelCore& kernel_) : KSynchronizationObject{kernel_} {}
 
 KServerSession::~KServerSession() {
     kernel.ReleaseServiceThread(service_thread);
@@ -95,7 +95,7 @@ ResultCode KServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& co
             UNREACHABLE();
             return RESULT_SUCCESS; // Ignore error if asserts are off
         }
-        return domain_request_handlers[object_id - 1]->HandleSyncRequest(context);
+        return domain_request_handlers[object_id - 1]->HandleSyncRequest(*this, context);
 
     case IPC::DomainMessageHeader::CommandType::CloseVirtualHandle: {
         LOG_DEBUG(IPC, "CloseVirtualHandle, object_id=0x{:08X}", object_id);
@@ -135,7 +135,7 @@ ResultCode KServerSession::CompleteSyncRequest(HLERequestContext& context) {
         // If there is no domain header, the regular session handler is used
     } else if (hle_handler != nullptr) {
         // If this ServerSession has an associated HLE handler, forward the request to it.
-        result = hle_handler->HandleSyncRequest(context);
+        result = hle_handler->HandleSyncRequest(*this, context);
     }
 
     if (convert_to_domain) {

src/core/hle/kernel/k_server_session.h

@@ -40,7 +40,7 @@ class KServerSession final : public KSynchronizationObject,
     friend class ServiceThread;
 
 public:
-    explicit KServerSession(KernelCore& kernel);
+    explicit KServerSession(KernelCore& kernel_);
     virtual ~KServerSession() override;
 
     virtual void Destroy() override;

src/core/hle/kernel/k_session.cpp

@@ -11,8 +11,8 @@
 
 namespace Kernel {
 
-KSession::KSession(KernelCore& kernel)
-    : KAutoObjectWithSlabHeapAndContainer{kernel}, server{kernel}, client{kernel} {}
+KSession::KSession(KernelCore& kernel_)
+    : KAutoObjectWithSlabHeapAndContainer{kernel_}, server{kernel_}, client{kernel_} {}
 KSession::~KSession() = default;
 
 void KSession::Initialize(KClientPort* port_, const std::string& name_) {
@@ -78,7 +78,7 @@ void KSession::OnClientClosed() {
 void KSession::PostDestroy(uintptr_t arg) {
     // Release the session count resource the owner process holds.
     KProcess* owner = reinterpret_cast<KProcess*>(arg);
-    owner->GetResourceLimit()->Release(LimitableResource::Sessions, 1);
+    // owner->GetResourceLimit()->Release(LimitableResource::Sessions, 1);
     owner->Close();
 }
 

src/core/hle/kernel/k_session.h

@@ -17,7 +17,7 @@ class KSession final : public KAutoObjectWithSlabHeapAndContainer<KSession, KAut
     KERNEL_AUTOOBJECT_TRAITS(KSession, KAutoObject);
 
 public:
-    explicit KSession(KernelCore& kernel);
+    explicit KSession(KernelCore& kernel_);
     virtual ~KSession() override;
 
     void Initialize(KClientPort* port_, const std::string& name_);

src/core/hle/kernel/k_shared_memory.cpp

@@ -12,14 +12,14 @@
 
 namespace Kernel {
 
-KSharedMemory::KSharedMemory(KernelCore& kernel) : KAutoObjectWithSlabHeapAndContainer{kernel} {}
+KSharedMemory::KSharedMemory(KernelCore& kernel_) : KAutoObjectWithSlabHeapAndContainer{kernel_} {}
 
 KSharedMemory::~KSharedMemory() {
     kernel.GetSystemResourceLimit()->Release(LimitableResource::PhysicalMemory, size);
 }
 
-ResultCode KSharedMemory::Initialize(KernelCore& kernel_, Core::DeviceMemory& device_memory_,
-                                     KProcess* owner_process_, KPageLinkedList&& page_list_,
+ResultCode KSharedMemory::Initialize(Core::DeviceMemory& device_memory_, KProcess* owner_process_,
+                                     KPageLinkedList&& page_list_,
                                      Svc::MemoryPermission owner_permission_,
                                      Svc::MemoryPermission user_permission_,
                                      PAddr physical_address_, std::size_t size_,
@@ -32,7 +32,7 @@ ResultCode KSharedMemory::Initialize(KernelCore& kernel_, Core::DeviceMemory& de
     user_permission = user_permission_;
     physical_address = physical_address_;
     size = size_;
-    name = name_;
+    name = std::move(name_);
 
     // Get the resource limit.
     KResourceLimit* reslimit = kernel.GetSystemResourceLimit();
@@ -67,9 +67,9 @@ void KSharedMemory::Finalize() {
     KAutoObjectWithSlabHeapAndContainer<KSharedMemory, KAutoObjectWithList>::Finalize();
 }
 
-ResultCode KSharedMemory::Map(KProcess& target_process, VAddr address, std::size_t size,
+ResultCode KSharedMemory::Map(KProcess& target_process, VAddr address, std::size_t map_size,
                               Svc::MemoryPermission permissions) {
-    const u64 page_count{(size + PageSize - 1) / PageSize};
+    const u64 page_count{(map_size + PageSize - 1) / PageSize};
 
     if (page_list.GetNumPages() != page_count) {
         UNIMPLEMENTED_MSG("Page count does not match");
@@ -86,8 +86,8 @@ ResultCode KSharedMemory::Map(KProcess& target_process, VAddr address, std::size
                                                ConvertToKMemoryPermission(permissions));
 }
 
-ResultCode KSharedMemory::Unmap(KProcess& target_process, VAddr address, std::size_t size) {
-    const u64 page_count{(size + PageSize - 1) / PageSize};
+ResultCode KSharedMemory::Unmap(KProcess& target_process, VAddr address, std::size_t unmap_size) {
+    const u64 page_count{(unmap_size + PageSize - 1) / PageSize};
 
     if (page_list.GetNumPages() != page_count) {
         UNIMPLEMENTED_MSG("Page count does not match");

src/core/hle/kernel/k_shared_memory.h

@@ -24,12 +24,11 @@ class KSharedMemory final
     KERNEL_AUTOOBJECT_TRAITS(KSharedMemory, KAutoObject);
 
 public:
-    explicit KSharedMemory(KernelCore& kernel);
+    explicit KSharedMemory(KernelCore& kernel_);
     ~KSharedMemory() override;
 
-    ResultCode Initialize(KernelCore& kernel_, Core::DeviceMemory& device_memory_,
-                          KProcess* owner_process_, KPageLinkedList&& page_list_,
-                          Svc::MemoryPermission owner_permission_,
+    ResultCode Initialize(Core::DeviceMemory& device_memory_, KProcess* owner_process_,
+                          KPageLinkedList&& page_list_, Svc::MemoryPermission owner_permission_,
                           Svc::MemoryPermission user_permission_, PAddr physical_address_,
                           std::size_t size_, std::string name_);
 
@@ -37,19 +36,19 @@ public:
      * Maps a shared memory block to an address in the target process' address space
      * @param target_process Process on which to map the memory block
      * @param address Address in system memory to map shared memory block to
-     * @param size Size of the shared memory block to map
+     * @param map_size Size of the shared memory block to map
      * @param permissions Memory block map permissions (specified by SVC field)
      */
-    ResultCode Map(KProcess& target_process, VAddr address, std::size_t size,
+    ResultCode Map(KProcess& target_process, VAddr address, std::size_t map_size,
                    Svc::MemoryPermission permissions);
 
     /**
      * Unmaps a shared memory block from an address in the target process' address space
      * @param target_process Process on which to unmap the memory block
      * @param address Address in system memory to unmap shared memory block
-     * @param size Size of the shared memory block to unmap
+     * @param unmap_size Size of the shared memory block to unmap
      */
-    ResultCode Unmap(KProcess& target_process, VAddr address, std::size_t size);
+    ResultCode Unmap(KProcess& target_process, VAddr address, std::size_t unmap_size);
 
     /**
      * Gets a pointer to the shared memory block

src/core/hle/kernel/k_synchronization_object.cpp

@@ -18,18 +18,18 @@ void KSynchronizationObject::Finalize() {
     KAutoObject::Finalize();
 }
 
-ResultCode KSynchronizationObject::Wait(KernelCore& kernel, s32* out_index,
+ResultCode KSynchronizationObject::Wait(KernelCore& kernel_ctx, s32* out_index,
                                         KSynchronizationObject** objects, const s32 num_objects,
                                         s64 timeout) {
     // Allocate space on stack for thread nodes.
     std::vector<ThreadListNode> thread_nodes(num_objects);
 
     // Prepare for wait.
-    KThread* thread = kernel.CurrentScheduler()->GetCurrentThread();
+    KThread* thread = kernel_ctx.CurrentScheduler()->GetCurrentThread();
 
     {
         // Setup the scheduling lock and sleep.
-        KScopedSchedulerLockAndSleep slp{kernel, thread, timeout};
+        KScopedSchedulerLockAndSleep slp{kernel_ctx, thread, timeout};
 
         // Check if any of the objects are already signaled.
         for (auto i = 0; i < num_objects; ++i) {
@@ -94,13 +94,13 @@ ResultCode KSynchronizationObject::Wait(KernelCore& kernel, s32* out_index,
     thread->SetWaitObjectsForDebugging({});
 
     // Cancel the timer as needed.
-    kernel.TimeManager().UnscheduleTimeEvent(thread);
+    kernel_ctx.TimeManager().UnscheduleTimeEvent(thread);
 
     // Get the wait result.
     ResultCode wait_result{RESULT_SUCCESS};
     s32 sync_index = -1;
     {
-        KScopedSchedulerLock lock(kernel);
+        KScopedSchedulerLock lock(kernel_ctx);
         KSynchronizationObject* synced_obj;
         wait_result = thread->GetWaitResult(std::addressof(synced_obj));
 
@@ -135,7 +135,8 @@ ResultCode KSynchronizationObject::Wait(KernelCore& kernel, s32* out_index,
     return wait_result;
 }
 
-KSynchronizationObject::KSynchronizationObject(KernelCore& kernel) : KAutoObjectWithList{kernel} {}
+KSynchronizationObject::KSynchronizationObject(KernelCore& kernel_)
+    : KAutoObjectWithList{kernel_} {}
 
 KSynchronizationObject::~KSynchronizationObject() = default;
 

src/core/hle/kernel/k_thread.cpp

@@ -60,8 +60,8 @@ static void ResetThreadContext64(Core::ARM_Interface::ThreadContext64& context,
 
 namespace Kernel {
 
-KThread::KThread(KernelCore& kernel)
-    : KAutoObjectWithSlabHeapAndContainer{kernel}, activity_pause_lock{kernel} {}
+KThread::KThread(KernelCore& kernel_)
+    : KAutoObjectWithSlabHeapAndContainer{kernel_}, activity_pause_lock{kernel_} {}
 KThread::~KThread() = default;
 
 ResultCode KThread::Initialize(KThreadFunction func, uintptr_t arg, VAddr user_stack_top, s32 prio,
@@ -479,7 +479,7 @@ ResultCode KThread::GetPhysicalCoreMask(s32* out_ideal_core, u64* out_affinity_m
     return RESULT_SUCCESS;
 }
 
-ResultCode KThread::SetCoreMask(s32 core_id, u64 v_affinity_mask) {
+ResultCode KThread::SetCoreMask(s32 cpu_core_id, u64 v_affinity_mask) {
     ASSERT(parent != nullptr);
     ASSERT(v_affinity_mask != 0);
     KScopedLightLock lk{activity_pause_lock};
@@ -491,18 +491,18 @@ ResultCode KThread::SetCoreMask(s32 core_id, u64 v_affinity_mask) {
         ASSERT(num_core_migration_disables >= 0);
 
         // If the core id is no-update magic, preserve the ideal core id.
-        if (core_id == Svc::IdealCoreNoUpdate) {
-            core_id = virtual_ideal_core_id;
-            R_UNLESS(((1ULL << core_id) & v_affinity_mask) != 0, ResultInvalidCombination);
+        if (cpu_core_id == Svc::IdealCoreNoUpdate) {
+            cpu_core_id = virtual_ideal_core_id;
+            R_UNLESS(((1ULL << cpu_core_id) & v_affinity_mask) != 0, ResultInvalidCombination);
         }
 
         // Set the virtual core/affinity mask.
-        virtual_ideal_core_id = core_id;
+        virtual_ideal_core_id = cpu_core_id;
         virtual_affinity_mask = v_affinity_mask;
 
         // Translate the virtual core to a physical core.
-        if (core_id >= 0) {
-            core_id = Core::Hardware::VirtualToPhysicalCoreMap[core_id];
+        if (cpu_core_id >= 0) {
+            cpu_core_id = Core::Hardware::VirtualToPhysicalCoreMap[cpu_core_id];
         }
 
         // Translate the virtual affinity mask to a physical one.
@@ -517,7 +517,7 @@ ResultCode KThread::SetCoreMask(s32 core_id, u64 v_affinity_mask) {
             const KAffinityMask old_mask = physical_affinity_mask;
 
             // Set our new ideals.
-            physical_ideal_core_id = core_id;
+            physical_ideal_core_id = cpu_core_id;
             physical_affinity_mask.SetAffinityMask(p_affinity_mask);
 
             if (physical_affinity_mask.GetAffinityMask() != old_mask.GetAffinityMask()) {
@@ -535,7 +535,7 @@ ResultCode KThread::SetCoreMask(s32 core_id, u64 v_affinity_mask) {
             }
         } else {
             // Otherwise, we edit the original affinity for restoration later.
-            original_physical_ideal_core_id = core_id;
+            original_physical_ideal_core_id = cpu_core_id;
             original_physical_affinity_mask.SetAffinityMask(p_affinity_mask);
         }
     }
@@ -851,8 +851,8 @@ void KThread::RemoveWaiterImpl(KThread* thread) {
     thread->SetLockOwner(nullptr);
 }
 
-void KThread::RestorePriority(KernelCore& kernel, KThread* thread) {
-    ASSERT(kernel.GlobalSchedulerContext().IsLocked());
+void KThread::RestorePriority(KernelCore& kernel_ctx, KThread* thread) {
+    ASSERT(kernel_ctx.GlobalSchedulerContext().IsLocked());
 
     while (true) {
         // We want to inherit priority where possible.
@@ -868,7 +868,7 @@ void KThread::RestorePriority(KernelCore& kernel, KThread* thread) {
 
         // Ensure we don't violate condition variable red black tree invariants.
         if (auto* cv_tree = thread->GetConditionVariableTree(); cv_tree != nullptr) {
-            BeforeUpdatePriority(kernel, cv_tree, thread);
+            BeforeUpdatePriority(kernel_ctx, cv_tree, thread);
         }
 
         // Change the priority.
@@ -877,11 +877,11 @@ void KThread::RestorePriority(KernelCore& kernel, KThread* thread) {
 
         // Restore the condition variable, if relevant.
         if (auto* cv_tree = thread->GetConditionVariableTree(); cv_tree != nullptr) {
-            AfterUpdatePriority(kernel, cv_tree, thread);
+            AfterUpdatePriority(kernel_ctx, cv_tree, thread);
         }
 
         // Update the scheduler.
-        KScheduler::OnThreadPriorityChanged(kernel, thread, old_priority);
+        KScheduler::OnThreadPriorityChanged(kernel_ctx, thread, old_priority);
 
         // Keep the lock owner up to date.
         KThread* lock_owner = thread->GetLockOwner();

src/core/hle/kernel/k_thread.h

@@ -111,7 +111,7 @@ public:
     static constexpr s32 DefaultThreadPriority = 44;
     static constexpr s32 IdleThreadPriority = Svc::LowestThreadPriority + 1;
 
-    explicit KThread(KernelCore& kernel);
+    explicit KThread(KernelCore& kernel_);
     ~KThread() override;
 
 public:
@@ -318,7 +318,7 @@ public:
 
     [[nodiscard]] ResultCode GetPhysicalCoreMask(s32* out_ideal_core, u64* out_affinity_mask);
 
-    [[nodiscard]] ResultCode SetCoreMask(s32 core_id, u64 v_affinity_mask);
+    [[nodiscard]] ResultCode SetCoreMask(s32 cpu_core_id, u64 v_affinity_mask);
 
     [[nodiscard]] ResultCode SetActivity(Svc::ThreadActivity activity);
 
@@ -649,7 +649,7 @@ private:
                                                      std::function<void(void*)>&& init_func,
                                                      void* init_func_parameter);
 
-    static void RestorePriority(KernelCore& kernel, KThread* thread);
+    static void RestorePriority(KernelCore& kernel_ctx, KThread* thread);
 
     // For core KThread implementation
     ThreadContext32 thread_context_32{};

src/core/hle/kernel/k_transfer_memory.cpp

@@ -9,8 +9,8 @@
 
 namespace Kernel {
 
-KTransferMemory::KTransferMemory(KernelCore& kernel)
-    : KAutoObjectWithSlabHeapAndContainer{kernel} {}
+KTransferMemory::KTransferMemory(KernelCore& kernel_)
+    : KAutoObjectWithSlabHeapAndContainer{kernel_} {}
 
 KTransferMemory::~KTransferMemory() = default;
 

src/core/hle/kernel/k_transfer_memory.h

@@ -26,7 +26,7 @@ class KTransferMemory final
     KERNEL_AUTOOBJECT_TRAITS(KTransferMemory, KAutoObject);
 
 public:
-    explicit KTransferMemory(KernelCore& kernel);
+    explicit KTransferMemory(KernelCore& kernel_);
     virtual ~KTransferMemory() override;
 
     ResultCode Initialize(VAddr address_, std::size_t size_, Svc::MemoryPermission owner_perm_);

src/core/hle/kernel/k_writable_event.cpp

@@ -8,7 +8,8 @@
 
 namespace Kernel {
 
-KWritableEvent::KWritableEvent(KernelCore& kernel) : KAutoObjectWithSlabHeapAndContainer{kernel} {}
+KWritableEvent::KWritableEvent(KernelCore& kernel_)
+    : KAutoObjectWithSlabHeapAndContainer{kernel_} {}
 
 KWritableEvent::~KWritableEvent() = default;
 

src/core/hle/kernel/k_writable_event.h

@@ -18,7 +18,7 @@ class KWritableEvent final
     KERNEL_AUTOOBJECT_TRAITS(KWritableEvent, KAutoObject);
 
 public:
-    explicit KWritableEvent(KernelCore& kernel);
+    explicit KWritableEvent(KernelCore& kernel_);
     ~KWritableEvent() override;
 
     virtual void Destroy() override;

src/core/hle/kernel/kernel.cpp

@@ -44,6 +44,7 @@
 #include "core/hle/kernel/time_manager.h"
 #include "core/hle/lock.h"
 #include "core/hle/result.h"
+#include "core/hle/service/sm/sm.h"
 #include "core/memory.h"
 
 MICROPROFILE_DEFINE(Kernel_SVC, "Kernel", "SVC", MP_RGB(70, 200, 70));
@@ -51,11 +52,11 @@ MICROPROFILE_DEFINE(Kernel_SVC, "Kernel", "SVC", MP_RGB(70, 200, 70));
 namespace Kernel {
 
 struct KernelCore::Impl {
-    explicit Impl(Core::System& system, KernelCore& kernel)
-        : time_manager{system}, object_list_container{kernel}, system{system} {}
+    explicit Impl(Core::System& system_, KernelCore& kernel_)
+        : time_manager{system_}, object_list_container{kernel_}, system{system_} {}
 
-    void SetMulticore(bool is_multicore) {
-        this->is_multicore = is_multicore;
+    void SetMulticore(bool is_multi) {
+        is_multicore = is_multi;
     }
 
     void Initialize(KernelCore& kernel) {
@@ -599,19 +600,19 @@ struct KernelCore::Impl {
         irs_shared_mem = KSharedMemory::Create(system.Kernel());
         time_shared_mem = KSharedMemory::Create(system.Kernel());
 
-        hid_shared_mem->Initialize(system.Kernel(), system.DeviceMemory(), nullptr,
+        hid_shared_mem->Initialize(system.DeviceMemory(), nullptr,
                                    {hid_phys_addr, hid_size / PageSize},
                                    Svc::MemoryPermission::None, Svc::MemoryPermission::Read,
                                    hid_phys_addr, hid_size, "HID:SharedMemory");
-        font_shared_mem->Initialize(system.Kernel(), system.DeviceMemory(), nullptr,
+        font_shared_mem->Initialize(system.DeviceMemory(), nullptr,
                                     {font_phys_addr, font_size / PageSize},
                                     Svc::MemoryPermission::None, Svc::MemoryPermission::Read,
                                     font_phys_addr, font_size, "Font:SharedMemory");
-        irs_shared_mem->Initialize(system.Kernel(), system.DeviceMemory(), nullptr,
+        irs_shared_mem->Initialize(system.DeviceMemory(), nullptr,
                                    {irs_phys_addr, irs_size / PageSize},
                                    Svc::MemoryPermission::None, Svc::MemoryPermission::Read,
                                    irs_phys_addr, irs_size, "IRS:SharedMemory");
-        time_shared_mem->Initialize(system.Kernel(), system.DeviceMemory(), nullptr,
+        time_shared_mem->Initialize(system.DeviceMemory(), nullptr,
                                     {time_phys_addr, time_size / PageSize},
                                     Svc::MemoryPermission::None, Svc::MemoryPermission::Read,
                                     time_phys_addr, time_size, "Time:SharedMemory");
@@ -656,6 +657,7 @@ struct KernelCore::Impl {
 
     /// 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;
     NamedPortTable named_ports;
 
     std::unique_ptr<Core::ExclusiveMonitor> exclusive_monitor;
@@ -844,18 +846,17 @@ void KernelCore::PrepareReschedule(std::size_t id) {
     // TODO: Reimplement, this
 }
 
-void KernelCore::AddNamedPort(std::string name, KClientPort* port) {
-    port->Open();
-    impl->named_ports.emplace(std::move(name), port);
+void KernelCore::RegisterNamedService(std::string name, ServiceInterfaceFactory&& factory) {
+    impl->service_interface_factory.emplace(std::move(name), factory);
 }
 
-KernelCore::NamedPortTable::iterator KernelCore::FindNamedPort(const std::string& name) {
-    return impl->named_ports.find(name);
-}
-
-KernelCore::NamedPortTable::const_iterator KernelCore::FindNamedPort(
-    const std::string& name) const {
-    return impl->named_ports.find(name);
+KClientPort* KernelCore::CreateNamedServicePort(std::string name) {
+    auto search = impl->service_interface_factory.find(name);
+    if (search == impl->service_interface_factory.end()) {
+        UNIMPLEMENTED();
+        return {};
+    }
+    return &search->second(impl->system.ServiceManager(), impl->system);
 }
 
 bool KernelCore::IsValidNamedPort(NamedPortTable::const_iterator port) const {

src/core/hle/kernel/kernel.h

@@ -27,6 +27,10 @@ class CoreTiming;
 struct EventType;
 } // namespace Core::Timing
 
+namespace Service::SM {
+class ServiceManager;
+}
+
 namespace Kernel {
 
 class KClientPort;
@@ -51,6 +55,9 @@ class ServiceThread;
 class Synchronization;
 class TimeManager;
 
+using ServiceInterfaceFactory =
+    std::function<KClientPort&(Service::SM::ServiceManager&, Core::System&)>;
+
 namespace Init {
 struct KSlabResourceCounts;
 }
@@ -172,14 +179,11 @@ public:
 
     void InvalidateCpuInstructionCacheRange(VAddr addr, std::size_t size);
 
-    /// Adds a port to the named port table
-    void AddNamedPort(std::string name, KClientPort* port);
+    /// Registers a named HLE service, passing a factory used to open a port to that service.
+    void RegisterNamedService(std::string name, ServiceInterfaceFactory&& factory);
 
-    /// Finds a port within the named port table with the given name.
-    NamedPortTable::iterator FindNamedPort(const std::string& name);
-
-    /// Finds a port within the named port table with the given name.
-    NamedPortTable::const_iterator FindNamedPort(const std::string& name) const;
+    /// Opens a port to a service previously registered with RegisterNamedService.
+    KClientPort* CreateNamedServicePort(std::string name);
 
     /// Determines whether or not the given port is a valid named port.
     bool IsValidNamedPort(NamedPortTable::const_iterator port) const;

src/core/hle/kernel/slab_helpers.h

@@ -67,11 +67,11 @@ class KAutoObjectWithSlabHeapAndContainer : public Base {
 
 private:
     static Derived* Allocate(KernelCore& kernel) {
-        return kernel.SlabHeap<Derived>().AllocateWithKernel(kernel);
+        return new Derived(kernel);
     }
 
     static void Free(KernelCore& kernel, Derived* obj) {
-        kernel.SlabHeap<Derived>().Free(obj);
+        delete obj;
     }
 
 public:

src/core/hle/kernel/svc.cpp

@@ -284,12 +284,11 @@ static ResultCode ConnectToNamedPort(Core::System& system, Handle* out, VAddr po
     auto& handle_table = kernel.CurrentProcess()->GetHandleTable();
 
     // Find the client port.
-    const auto it = kernel.FindNamedPort(port_name);
-    if (!kernel.IsValidNamedPort(it)) {
-        LOG_WARNING(Kernel_SVC, "tried to connect to unknown port: {}", port_name);
+    auto port = kernel.CreateNamedServicePort(port_name);
+    if (!port) {
+        LOG_ERROR(Kernel_SVC, "tried to connect to unknown port: {}", port_name);
         return ResultNotFound;
     }
-    auto port = it->second;
 
     // Reserve a handle for the port.
     // NOTE: Nintendo really does write directly to the output handle here.

src/core/hle/service/audio/audren_u.cpp

@@ -169,10 +169,9 @@ private:
 
 class IAudioDevice final : public ServiceFramework<IAudioDevice> {
 public:
-    explicit IAudioDevice(Core::System& system_, u32_le revision_num)
-        : ServiceFramework{system_, "IAudioDevice"}, revision{revision_num},
-          buffer_event{system.Kernel()}, audio_input_device_switch_event{system.Kernel()},
-          audio_output_device_switch_event{system.Kernel()} {
+    explicit IAudioDevice(Core::System& system_, Kernel::KEvent& buffer_event_, u32_le revision_)
+        : ServiceFramework{system_, "IAudioDevice"}, buffer_event{buffer_event_}, revision{
+                                                                                      revision_} {
         static const FunctionInfo functions[] = {
             {0, &IAudioDevice::ListAudioDeviceName, "ListAudioDeviceName"},
             {1, &IAudioDevice::SetAudioDeviceOutputVolume, "SetAudioDeviceOutputVolume"},
@@ -189,18 +188,6 @@ public:
             {13, nullptr, "GetAudioSystemMasterVolumeSetting"},
         };
         RegisterHandlers(functions);
-
-        Kernel::KAutoObject::Create(std::addressof(buffer_event));
-        buffer_event.Initialize("IAudioOutBufferReleasedEvent");
-
-        // Should be similar to audio_output_device_switch_event
-        Kernel::KAutoObject::Create(std::addressof(audio_input_device_switch_event));
-        audio_input_device_switch_event.Initialize("IAudioDevice:AudioInputDeviceSwitchedEvent");
-
-        // Should only be signalled when an audio output device has been changed, example: speaker
-        // to headset
-        Kernel::KAutoObject::Create(std::addressof(audio_output_device_switch_event));
-        audio_output_device_switch_event.Initialize("IAudioDevice:AudioOutputDeviceSwitchedEvent");
     }
 
 private:
@@ -310,7 +297,7 @@ private:
 
         IPC::ResponseBuilder rb{ctx, 2, 1};
         rb.Push(RESULT_SUCCESS);
-        rb.PushCopyObjects(audio_input_device_switch_event.GetReadableEvent());
+        rb.PushCopyObjects(buffer_event.GetReadableEvent());
     }
 
     void QueryAudioDeviceOutputEvent(Kernel::HLERequestContext& ctx) {
@@ -318,17 +305,16 @@ private:
 
         IPC::ResponseBuilder rb{ctx, 2, 1};
         rb.Push(RESULT_SUCCESS);
-        rb.PushCopyObjects(audio_output_device_switch_event.GetReadableEvent());
+        rb.PushCopyObjects(buffer_event.GetReadableEvent());
     }
 
+    Kernel::KEvent& buffer_event;
     u32_le revision = 0;
-    Kernel::KEvent buffer_event;
-    Kernel::KEvent audio_input_device_switch_event;
-    Kernel::KEvent audio_output_device_switch_event;
+};
 
-}; // namespace Audio
+AudRenU::AudRenU(Core::System& system_)
+    : ServiceFramework{system_, "audren:u"}, buffer_event{system.Kernel()} {
 
-AudRenU::AudRenU(Core::System& system_) : ServiceFramework{system_, "audren:u"} {
     // clang-format off
     static const FunctionInfo functions[] = {
         {0, &AudRenU::OpenAudioRenderer, "OpenAudioRenderer"},
@@ -340,6 +326,9 @@ AudRenU::AudRenU(Core::System& system_) : ServiceFramework{system_, "audren:u"}
     // clang-format on
 
     RegisterHandlers(functions);
+
+    Kernel::KAutoObject::Create(std::addressof(buffer_event));
+    buffer_event.Initialize("IAudioOutBufferReleasedEvent");
 }
 
 AudRenU::~AudRenU() = default;
@@ -662,7 +651,7 @@ void AudRenU::GetAudioDeviceService(Kernel::HLERequestContext& ctx) {
     // always assumes the initial release revision (REV1).
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<IAudioDevice>(system, Common::MakeMagic('R', 'E', 'V', '1'));
+    rb.PushIpcInterface<IAudioDevice>(system, buffer_event, Common::MakeMagic('R', 'E', 'V', '1'));
 }
 
 void AudRenU::OpenAudioRendererForManualExecution(Kernel::HLERequestContext& ctx) {
@@ -684,7 +673,7 @@ void AudRenU::GetAudioDeviceServiceWithRevisionInfo(Kernel::HLERequestContext& c
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<IAudioDevice>(system, revision);
+    rb.PushIpcInterface<IAudioDevice>(system, buffer_event, revision);
 }
 
 void AudRenU::OpenAudioRendererImpl(Kernel::HLERequestContext& ctx) {

src/core/hle/service/audio/audren_u.h

@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include "core/hle/kernel/k_event.h"
 #include "core/hle/service/service.h"
 
 namespace Core {
@@ -31,6 +32,7 @@ private:
     void OpenAudioRendererImpl(Kernel::HLERequestContext& ctx);
 
     std::size_t audren_instance_count = 0;
+    Kernel::KEvent buffer_event;
 };
 
 // Describes a particular audio feature that may be supported in a particular revision.

src/core/hle/service/service.cpp

@@ -111,7 +111,7 @@ void ServiceFrameworkBase::InstallAsService(SM::ServiceManager& service_manager)
     port_installed = true;
 }
 
-void ServiceFrameworkBase::InstallAsNamedPort(Kernel::KernelCore& kernel) {
+Kernel::KClientPort& ServiceFrameworkBase::CreatePort(Kernel::KernelCore& kernel) {
     const auto guard = LockService();
 
     ASSERT(!port_installed);
@@ -119,9 +119,10 @@ void ServiceFrameworkBase::InstallAsNamedPort(Kernel::KernelCore& kernel) {
     auto* port = Kernel::KPort::Create(kernel);
     port->Initialize(max_sessions, false, service_name);
     port->GetServerPort().SetHleHandler(shared_from_this());
-    kernel.AddNamedPort(service_name, &port->GetClientPort());
 
     port_installed = true;
+
+    return port->GetClientPort();
 }
 
 void ServiceFrameworkBase::RegisterHandlersBase(const FunctionInfoBase* functions, std::size_t n) {
@@ -132,6 +133,16 @@ void ServiceFrameworkBase::RegisterHandlersBase(const FunctionInfoBase* function
     }
 }
 
+void ServiceFrameworkBase::RegisterHandlersBaseTipc(const FunctionInfoBase* functions,
+                                                    std::size_t n) {
+    handlers_tipc.reserve(handlers_tipc.size() + n);
+    for (std::size_t i = 0; i < n; ++i) {
+        // Usually this array is sorted by id already, so hint to insert at the end
+        handlers_tipc.emplace_hint(handlers_tipc.cend(), functions[i].expected_header,
+                                   functions[i]);
+    }
+}
+
 void ServiceFrameworkBase::ReportUnimplementedFunction(Kernel::HLERequestContext& ctx,
                                                        const FunctionInfoBase* info) {
     auto cmd_buf = ctx.CommandBuffer();
@@ -166,33 +177,55 @@ void ServiceFrameworkBase::InvokeRequest(Kernel::HLERequestContext& ctx) {
     handler_invoker(this, info->handler_callback, ctx);
 }
 
-ResultCode ServiceFrameworkBase::HandleSyncRequest(Kernel::HLERequestContext& context) {
+void ServiceFrameworkBase::InvokeRequestTipc(Kernel::HLERequestContext& ctx) {
+    boost::container::flat_map<u32, FunctionInfoBase>::iterator itr;
+
+    itr = handlers_tipc.find(ctx.GetCommand());
+
+    const FunctionInfoBase* info = itr == handlers_tipc.end() ? nullptr : &itr->second;
+    if (info == nullptr || info->handler_callback == nullptr) {
+        return ReportUnimplementedFunction(ctx, info);
+    }
+
+    LOG_TRACE(Service, "{}", MakeFunctionString(info->name, GetServiceName(), ctx.CommandBuffer()));
+    handler_invoker(this, info->handler_callback, ctx);
+}
+
+ResultCode ServiceFrameworkBase::HandleSyncRequest(Kernel::KServerSession& session,
+                                                   Kernel::HLERequestContext& ctx) {
     const auto guard = LockService();
 
-    switch (context.GetCommandType()) {
-    case IPC::CommandType::Close: {
-        IPC::ResponseBuilder rb{context, 2};
+    switch (ctx.GetCommandType()) {
+    case IPC::CommandType::Close:
+    case IPC::CommandType::TIPC_Close: {
+        session.Close();
+        IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
         return IPC::ERR_REMOTE_PROCESS_DEAD;
     }
     case IPC::CommandType::ControlWithContext:
     case IPC::CommandType::Control: {
-        system.ServiceManager().InvokeControlRequest(context);
+        system.ServiceManager().InvokeControlRequest(ctx);
         break;
     }
     case IPC::CommandType::RequestWithContext:
     case IPC::CommandType::Request: {
-        InvokeRequest(context);
+        InvokeRequest(ctx);
         break;
     }
     default:
-        UNIMPLEMENTED_MSG("command_type={}", context.GetCommandType());
+        if (ctx.IsTipc()) {
+            InvokeRequestTipc(ctx);
+            break;
+        }
+
+        UNIMPLEMENTED_MSG("command_type={}", ctx.GetCommandType());
     }
 
     // If emulation was shutdown, we are closing service threads, do not write the response back to
     // memory that may be shutting down as well.
     if (system.IsPoweredOn()) {
-        context.WriteToOutgoingCommandBuffer(context.GetThread());
+        ctx.WriteToOutgoingCommandBuffer(ctx.GetThread());
     }
 
     return RESULT_SUCCESS;
@@ -207,7 +240,7 @@ Services::Services(std::shared_ptr<SM::ServiceManager>& sm, Core::System& system
 
     system.GetFileSystemController().CreateFactories(*system.GetFilesystem(), false);
 
-    SM::ServiceManager::InstallInterfaces(sm, system);
+    system.Kernel().RegisterNamedService("sm:", SM::ServiceManager::InterfaceFactory);
 
     Account::InstallInterfaces(system);
     AM::InstallInterfaces(*sm, *nv_flinger, system);

src/core/hle/service/service.h

@@ -21,7 +21,9 @@ class System;
 
 namespace Kernel {
 class HLERequestContext;
-}
+class KClientPort;
+class KServerSession;
+} // namespace Kernel
 
 namespace Service {
 
@@ -64,12 +66,19 @@ public:
 
     /// Creates a port pair and registers this service with the given ServiceManager.
     void InstallAsService(SM::ServiceManager& service_manager);
-    /// Creates a port pair and registers it on the kernel's global port registry.
-    void InstallAsNamedPort(Kernel::KernelCore& kernel);
-    /// Invokes a service request routine.
+
+    /// Invokes a service request routine using the HIPC protocol.
     void InvokeRequest(Kernel::HLERequestContext& ctx);
+
+    /// Invokes a service request routine using the HIPC protocol.
+    void InvokeRequestTipc(Kernel::HLERequestContext& ctx);
+
+    /// Creates a port pair and registers it on the kernel's global port registry.
+    Kernel::KClientPort& CreatePort(Kernel::KernelCore& kernel);
+
     /// Handles a synchronization request for the service.
-    ResultCode HandleSyncRequest(Kernel::HLERequestContext& context) override;
+    ResultCode HandleSyncRequest(Kernel::KServerSession& session,
+                                 Kernel::HLERequestContext& context) override;
 
 protected:
     /// Member-function pointer type of SyncRequest handlers.
@@ -102,6 +111,7 @@ private:
     ~ServiceFrameworkBase() override;
 
     void RegisterHandlersBase(const FunctionInfoBase* functions, std::size_t n);
+    void RegisterHandlersBaseTipc(const FunctionInfoBase* functions, std::size_t n);
     void ReportUnimplementedFunction(Kernel::HLERequestContext& ctx, const FunctionInfoBase* info);
 
     /// Identifier string used to connect to the service.
@@ -116,6 +126,7 @@ private:
     /// Function used to safely up-cast pointers to the derived class before invoking a handler.
     InvokerFn* handler_invoker;
     boost::container::flat_map<u32, FunctionInfoBase> handlers;
+    boost::container::flat_map<u32, FunctionInfoBase> handlers_tipc;
 
     /// Used to gain exclusive access to the service members, e.g. from CoreTiming thread.
     Common::SpinLock lock_service;
@@ -183,6 +194,20 @@ protected:
         RegisterHandlersBase(functions, n);
     }
 
+    /// Registers handlers in the service.
+    template <std::size_t N>
+    void RegisterHandlersTipc(const FunctionInfo (&functions)[N]) {
+        RegisterHandlersTipc(functions, N);
+    }
+
+    /**
+     * Registers handlers in the service. Usually prefer using the other RegisterHandlers
+     * overload in order to avoid needing to specify the array size.
+     */
+    void RegisterHandlersTipc(const FunctionInfo* functions, std::size_t n) {
+        RegisterHandlersBaseTipc(functions, n);
+    }
+
 private:
     /**
      * This function is used to allow invocation of pointers to handlers stored in the base class

src/core/hle/service/sm/controller.cpp

@@ -26,15 +26,23 @@ void Controller::CloneCurrentObject(Kernel::HLERequestContext& ctx) {
     // TODO(bunnei): This is just creating a new handle to the same Session. I assume this is wrong
     // and that we probably want to actually make an entirely new Session, but we still need to
     // verify this on hardware.
+
     LOG_DEBUG(Service, "called");
 
+    auto session = ctx.Session()->GetParent();
+
+    // Open a reference to the session to simulate a new one being created.
+    session->Open();
+    session->GetClientSession().Open();
+    session->GetServerSession().Open();
+
     IPC::ResponseBuilder rb{ctx, 2, 0, 1, IPC::ResponseBuilder::Flags::AlwaysMoveHandles};
     rb.Push(RESULT_SUCCESS);
-    rb.PushMoveObjects(ctx.Session()->GetParent()->GetClientSession());
+    rb.PushMoveObjects(session->GetClientSession());
 }
 
 void Controller::CloneCurrentObjectEx(Kernel::HLERequestContext& ctx) {
-    LOG_WARNING(Service, "(STUBBED) called, using CloneCurrentObject");
+    LOG_DEBUG(Service, "called");
 
     CloneCurrentObject(ctx);
 }
@@ -44,7 +52,7 @@ void Controller::QueryPointerBufferSize(Kernel::HLERequestContext& ctx) {
 
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
-    rb.Push<u16>(0x1000);
+    rb.Push<u16>(0x8000);
 }
 
 // https://switchbrew.org/wiki/IPC_Marshalling

src/core/hle/service/sm/sm.cpp

@@ -9,6 +9,7 @@
 #include "core/hle/kernel/k_client_port.h"
 #include "core/hle/kernel/k_client_session.h"
 #include "core/hle/kernel/k_port.h"
+#include "core/hle/kernel/k_scoped_resource_reservation.h"
 #include "core/hle/kernel/k_server_port.h"
 #include "core/hle/kernel/k_server_session.h"
 #include "core/hle/kernel/k_session.h"
@@ -18,6 +19,7 @@
 
 namespace Service::SM {
 
+constexpr ResultCode ERR_NOT_INITIALIZED(ErrorModule::SM, 2);
 constexpr ResultCode ERR_ALREADY_REGISTERED(ErrorModule::SM, 4);
 constexpr ResultCode ERR_INVALID_NAME(ErrorModule::SM, 6);
 constexpr ResultCode ERR_SERVICE_NOT_REGISTERED(ErrorModule::SM, 7);
@@ -34,20 +36,17 @@ static ResultCode ValidateServiceName(const std::string& name) {
         LOG_ERROR(Service_SM, "Invalid service name! service={}", name);
         return ERR_INVALID_NAME;
     }
-    if (name.rfind('\0') != std::string::npos) {
-        LOG_ERROR(Service_SM, "A non null terminated service was passed");
-        return ERR_INVALID_NAME;
-    }
     return RESULT_SUCCESS;
 }
 
-void ServiceManager::InstallInterfaces(std::shared_ptr<ServiceManager> self, Core::System& system) {
-    ASSERT(self->sm_interface.expired());
+Kernel::KClientPort& ServiceManager::InterfaceFactory(ServiceManager& self, Core::System& system) {
+    ASSERT(self.sm_interface.expired());
 
     auto sm = std::make_shared<SM>(self, system);
-    sm->InstallAsNamedPort(system.Kernel());
-    self->sm_interface = sm;
-    self->controller_interface = std::make_unique<Controller>(system);
+    self.sm_interface = sm;
+    self.controller_interface = std::make_unique<Controller>(system);
+
+    return sm->CreatePort(system.Kernel());
 }
 
 ResultVal<Kernel::KServerPort*> ServiceManager::RegisterService(std::string name,
@@ -107,33 +106,68 @@ SM::~SM() = default;
 void SM::Initialize(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_SM, "called");
 
+    is_initialized = true;
+
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
 
 void SM::GetService(Kernel::HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    auto name_buf = rp.PopRaw<std::array<char, 8>>();
-    auto end = std::find(name_buf.begin(), name_buf.end(), '\0');
-
-    std::string name(name_buf.begin(), end);
-
-    auto result = service_manager->GetServicePort(name);
-    if (result.Failed()) {
+    auto result = GetServiceImpl(ctx);
+    if (result.Succeeded()) {
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1, IPC::ResponseBuilder::Flags::AlwaysMoveHandles};
+        rb.Push(result.Code());
+        rb.PushMoveObjects(result.Unwrap());
+    } else {
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(result.Code());
+    }
+}
+
+void SM::GetServiceTipc(Kernel::HLERequestContext& ctx) {
+    auto result = GetServiceImpl(ctx);
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1, IPC::ResponseBuilder::Flags::AlwaysMoveHandles};
+    rb.Push(result.Code());
+    rb.PushMoveObjects(result.Succeeded() ? result.Unwrap() : nullptr);
+}
+
+static std::string PopServiceName(IPC::RequestParser& rp) {
+    auto name_buf = rp.PopRaw<std::array<char, 8>>();
+    std::string result;
+    for (const auto& c : name_buf) {
+        if (c >= ' ' && c <= '~') {
+            result.push_back(c);
+        }
+    }
+    return result;
+}
+
+ResultVal<Kernel::KClientSession*> SM::GetServiceImpl(Kernel::HLERequestContext& ctx) {
+    if (!is_initialized) {
+        return ERR_NOT_INITIALIZED;
+    }
+
+    IPC::RequestParser rp{ctx};
+    std::string name(PopServiceName(rp));
+
+    auto result = service_manager.GetServicePort(name);
+    if (result.Failed()) {
         LOG_ERROR(Service_SM, "called service={} -> error 0x{:08X}", name, result.Code().raw);
-        if (name.length() == 0)
-            return; // LibNX Fix
-        UNIMPLEMENTED();
-        return;
+        return result.Code();
     }
 
     auto* port = result.Unwrap();
 
+    // Kernel::KScopedResourceReservation session_reservation(
+    //    kernel.CurrentProcess()->GetResourceLimit(), Kernel::LimitableResource::Sessions);
+    // R_UNLESS(session_reservation.Succeeded(), Kernel::ResultLimitReached);
+
     auto* session = Kernel::KSession::Create(kernel);
     session->Initialize(&port->GetClientPort(), std::move(name));
 
+    // Commit the session reservation.
+    // session_reservation.Commit();
+
     if (port->GetServerPort().GetHLEHandler()) {
         port->GetServerPort().GetHLEHandler()->ClientConnected(&session->GetServerSession());
     } else {
@@ -141,18 +175,12 @@ void SM::GetService(Kernel::HLERequestContext& ctx) {
     }
 
     LOG_DEBUG(Service_SM, "called service={} -> session={}", name, session->GetId());
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1, IPC::ResponseBuilder::Flags::AlwaysMoveHandles};
-    rb.Push(RESULT_SUCCESS);
-    rb.PushMoveObjects(session->GetClientSession());
+    return MakeResult(&session->GetClientSession());
 }
 
 void SM::RegisterService(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
-
-    const auto name_buf = rp.PopRaw<std::array<char, 8>>();
-    const auto end = std::find(name_buf.begin(), name_buf.end(), '\0');
-
-    const std::string name(name_buf.begin(), end);
+    std::string name(PopServiceName(rp));
 
     const auto is_light = static_cast<bool>(rp.PopRaw<u32>());
     const auto max_session_count = rp.PopRaw<u32>();
@@ -160,7 +188,7 @@ void SM::RegisterService(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_SM, "called with name={}, max_session_count={}, is_light={}", name,
               max_session_count, is_light);
 
-    auto handle = service_manager->RegisterService(name, max_session_count);
+    auto handle = service_manager.RegisterService(name, max_session_count);
     if (handle.Failed()) {
         LOG_ERROR(Service_SM, "failed to register service with error_code={:08X}",
                   handle.Code().raw);
@@ -178,28 +206,31 @@ void SM::RegisterService(Kernel::HLERequestContext& ctx) {
 
 void SM::UnregisterService(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
+    std::string name(PopServiceName(rp));
 
-    const auto name_buf = rp.PopRaw<std::array<char, 8>>();
-    const auto end = std::find(name_buf.begin(), name_buf.end(), '\0');
-
-    const std::string name(name_buf.begin(), end);
     LOG_DEBUG(Service_SM, "called with name={}", name);
 
     IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(service_manager->UnregisterService(name));
+    rb.Push(service_manager.UnregisterService(name));
 }
 
-SM::SM(std::shared_ptr<ServiceManager> service_manager_, Core::System& system_)
+SM::SM(ServiceManager& service_manager_, Core::System& system_)
     : ServiceFramework{system_, "sm:", 4},
-      service_manager{std::move(service_manager_)}, kernel{system_.Kernel()} {
-    static const FunctionInfo functions[] = {
+      service_manager{service_manager_}, kernel{system_.Kernel()} {
+    RegisterHandlers({
         {0, &SM::Initialize, "Initialize"},
         {1, &SM::GetService, "GetService"},
         {2, &SM::RegisterService, "RegisterService"},
         {3, &SM::UnregisterService, "UnregisterService"},
         {4, nullptr, "DetachClient"},
-    };
-    RegisterHandlers(functions);
+    });
+    RegisterHandlersTipc({
+        {0, &SM::Initialize, "Initialize"},
+        {1, &SM::GetServiceTipc, "GetService"},
+        {2, &SM::RegisterService, "RegisterService"},
+        {3, &SM::UnregisterService, "UnregisterService"},
+        {4, nullptr, "DetachClient"},
+    });
 }
 
 } // namespace Service::SM

src/core/hle/service/sm/sm.h

@@ -34,22 +34,26 @@ class Controller;
 /// Interface to "sm:" service
 class SM final : public ServiceFramework<SM> {
 public:
-    explicit SM(std::shared_ptr<ServiceManager> service_manager_, Core::System& system_);
+    explicit SM(ServiceManager& service_manager_, Core::System& system_);
     ~SM() override;
 
 private:
     void Initialize(Kernel::HLERequestContext& ctx);
     void GetService(Kernel::HLERequestContext& ctx);
+    void GetServiceTipc(Kernel::HLERequestContext& ctx);
     void RegisterService(Kernel::HLERequestContext& ctx);
     void UnregisterService(Kernel::HLERequestContext& ctx);
 
-    std::shared_ptr<ServiceManager> service_manager;
+    ResultVal<Kernel::KClientSession*> GetServiceImpl(Kernel::HLERequestContext& ctx);
+
+    ServiceManager& service_manager;
+    bool is_initialized{};
     Kernel::KernelCore& kernel;
 };
 
 class ServiceManager {
 public:
-    static void InstallInterfaces(std::shared_ptr<ServiceManager> self, Core::System& system);
+    static Kernel::KClientPort& InterfaceFactory(ServiceManager& self, Core::System& system);
 
     explicit ServiceManager(Kernel::KernelCore& kernel_);
     ~ServiceManager();

src/input_common/udp/client.cpp

@@ -86,7 +86,6 @@ private:
             case Type::PadData: {
                 Response::PadData pad_data;
                 std::memcpy(&pad_data, &receive_buffer[sizeof(Header)], sizeof(Response::PadData));
-                SanitizeMotion(pad_data);
                 callback.pad_data(std::move(pad_data));
                 break;
             }
@@ -115,28 +114,6 @@ private:
         StartSend(timer.expiry());
     }
 
-    void SanitizeMotion(Response::PadData& data) {
-        // Zero out any non number value
-        if (!std::isnormal(data.gyro.pitch)) {
-            data.gyro.pitch = 0;
-        }
-        if (!std::isnormal(data.gyro.roll)) {
-            data.gyro.roll = 0;
-        }
-        if (!std::isnormal(data.gyro.yaw)) {
-            data.gyro.yaw = 0;
-        }
-        if (!std::isnormal(data.accel.x)) {
-            data.accel.x = 0;
-        }
-        if (!std::isnormal(data.accel.y)) {
-            data.accel.y = 0;
-        }
-        if (!std::isnormal(data.accel.z)) {
-            data.accel.z = 0;
-        }
-    }
-
     SocketCallback callback;
     boost::asio::io_service io_service;
     boost::asio::basic_waitable_timer<clock> timer;