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Merge pull request #6299 from bunnei/ipc-improvements 

Various improvements to IPC and session management
This commit is contained in:
bunnei 2021-05-15 22:30:21 -07:00 committed by GitHub
parent a1138028a8 eee302b9b9
commit 5a2b15bf75
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
19 changed files with 356 additions and 222 deletions
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2
src/common/tree.h
View File

@ -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)) {

17
src/core/hle/ipc.h
View File

@ -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");

40
src/core/hle/ipc_helpers.h
View File

@ -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;
}
};
@ -84,7 +86,9 @@ public:
// 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{};
@ -97,9 +101,14 @@ public:
}
if (ctx.Session()->IsDomain()) {
raw_data_size += sizeof(DomainMessageHeader) / 4 + num_domain_objects;
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);
@ -111,9 +120,13 @@ 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);
}
if (!ctx.IsTipc()) {
AlignWithPadding();
if (ctx.Session()->IsDomain() && ctx.HasDomainMessageHeader()) {
@ -125,8 +138,12 @@ public:
IPC::DataPayloadHeader data_payload_header{};
data_payload_header.magic = Common::MakeMagic('S', 'F', 'C', 'O');
PushRaw(data_payload_header);
}
datapayload_index = index;
data_payload_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) {

91
src/core/hle/kernel/hle_ipc.cpp
View File

@ -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;
}
@ -99,12 +99,14 @@ 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;
if (!command_header->IsTipc()) {
// Padding to align to 16 bytes
rp.AlignWithPadding();
if (Session()->IsDomain() && ((command_header->type == IPC::CommandType::Request ||
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
@ -122,7 +124,8 @@ void HLERequestContext::ParseCommandBuffer(const KHandleTable& handle_table, u32
data_payload_offset = rp.GetCurrentOffset();
if (domain_message_header && domain_message_header->command ==
if (domain_message_header &&
domain_message_header->command ==
IPC::DomainMessageHeader::CommandType::CloseVirtualHandle) {
// CloseVirtualHandle command does not have SFC* or any data
return;
@ -133,6 +136,7 @@ void HLERequestContext::ParseCommandBuffer(const KHandleTable& handle_table, u32
} 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& 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, requesting_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)
std::size_t size{};
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);
}
}
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));
Handle handle{};
if (object) {
R_TRY(handle_table.Add(&handle, object));
}
cmd_buf[current_offset++] = handle;
}
for (auto& object : move_objects) {
ASSERT(object != nullptr);
R_TRY(handle_table.Add(&dst_cmdbuf[current_offset++], object));
Handle handle{};
if (object) {
R_TRY(handle_table.Add(&handle, object));
// Close our reference to the object, as it is being moved to the caller.
object->Close();
}
cmd_buf[current_offset++] = handle;
}
// TODO(Subv): Translate the X/A/B/W buffers.
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;
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, requesting_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;
}

26
src/core/hle/kernel/hle_ipc.h
View File

@ -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
@ -128,15 +129,28 @@ public:
/// Writes data from this context back to the requesting process/thread.
ResultCode WriteToOutgoingCommandBuffer(KThread& requesting_thread);
u32_le GetCommand() const {
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_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;

10
src/core/hle/kernel/k_client_port.cpp
View File

@ -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);

4
src/core/hle/kernel/k_server_session.cpp
View File

@ -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) {

2
src/core/hle/kernel/k_session.cpp
View File

@ -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();
}

19
src/core/hle/kernel/kernel.cpp
View File

@ -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));
@ -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);
KClientPort* KernelCore::CreateNamedServicePort(std::string name) {
auto search = impl->service_interface_factory.find(name);
if (search == impl->service_interface_factory.end()) {
UNIMPLEMENTED();
return {};
}
KernelCore::NamedPortTable::const_iterator KernelCore::FindNamedPort(
const std::string& name) const {
return impl->named_ports.find(name);
return &search->second(impl->system.ServiceManager(), impl->system);
}
bool KernelCore::IsValidNamedPort(NamedPortTable::const_iterator port) const {

18
src/core/hle/kernel/kernel.h
View File

@ -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;

4
src/core/hle/kernel/slab_helpers.h
View File

@ -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:

7
src/core/hle/kernel/svc.cpp
View File

@ -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.

39
src/core/hle/service/audio/audren_u.cpp
View File

@ -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) {

2
src/core/hle/service/audio/audren_u.h
View File

@ -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.

55
src/core/hle/service/service.cpp
View File

@ -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);

35
src/core/hle/service/service.h
View File

@ -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

14
src/core/hle/service/sm/controller.cpp
View File

@ -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

111
src/core/hle/service/sm/sm.cpp
View File

@ -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

10
src/core/hle/service/sm/sm.h
View File

@ -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();