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authorFernando S <fsahmkow27@gmail.com>2023-12-24 16:23:14 +0100
committerGitHub <noreply@github.com>2023-12-24 16:23:14 +0100
commit05e3db3ac9edbff0e4885ef8b42d3a2427c9f027 (patch)
tree2f959b67638ab1134cfca19ac1f041552a68c335 /src/core/hle/kernel
parentMerge pull request #12412 from ameerj/gl-query-prims (diff)
parentkernel: fix resource limit imbalance (diff)
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Diffstat (limited to 'src/core/hle/kernel')
-rw-r--r--src/core/hle/kernel/k_address_arbiter.cpp19
-rw-r--r--src/core/hle/kernel/k_client_port.cpp5
-rw-r--r--src/core/hle/kernel/k_condition_variable.cpp8
-rw-r--r--src/core/hle/kernel/k_handle_table.h8
-rw-r--r--src/core/hle/kernel/k_process.cpp50
-rw-r--r--src/core/hle/kernel/k_process.h17
-rw-r--r--src/core/hle/kernel/k_server_session.cpp1425
-rw-r--r--src/core/hle/kernel/k_server_session.h15
-rw-r--r--src/core/hle/kernel/k_session.cpp3
-rw-r--r--src/core/hle/kernel/k_thread.cpp3
-rw-r--r--src/core/hle/kernel/k_thread.h6
-rw-r--r--src/core/hle/kernel/kernel.cpp34
-rw-r--r--src/core/hle/kernel/kernel.h7
-rw-r--r--src/core/hle/kernel/message_buffer.h20
-rw-r--r--src/core/hle/kernel/svc/svc_info.cpp1
-rw-r--r--src/core/hle/kernel/svc/svc_ipc.cpp6
-rw-r--r--src/core/hle/kernel/svc_results.h2
17 files changed, 1289 insertions, 340 deletions
diff --git a/src/core/hle/kernel/k_address_arbiter.cpp b/src/core/hle/kernel/k_address_arbiter.cpp
index 78d43d729..48889253d 100644
--- a/src/core/hle/kernel/k_address_arbiter.cpp
+++ b/src/core/hle/kernel/k_address_arbiter.cpp
@@ -4,6 +4,7 @@
#include "core/arm/exclusive_monitor.h"
#include "core/core.h"
#include "core/hle/kernel/k_address_arbiter.h"
+#include "core/hle/kernel/k_process.h"
#include "core/hle/kernel/k_scheduler.h"
#include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
#include "core/hle/kernel/k_thread.h"
@@ -26,9 +27,9 @@ bool ReadFromUser(KernelCore& kernel, s32* out, KProcessAddress address) {
return true;
}
-bool DecrementIfLessThan(Core::System& system, s32* out, KProcessAddress address, s32 value) {
- auto& monitor = system.Monitor();
- const auto current_core = system.Kernel().CurrentPhysicalCoreIndex();
+bool DecrementIfLessThan(KernelCore& kernel, s32* out, KProcessAddress address, s32 value) {
+ auto& monitor = GetCurrentProcess(kernel).GetExclusiveMonitor();
+ const auto current_core = kernel.CurrentPhysicalCoreIndex();
// NOTE: If scheduler lock is not held here, interrupt disable is required.
// KScopedInterruptDisable di;
@@ -66,10 +67,10 @@ bool DecrementIfLessThan(Core::System& system, s32* out, KProcessAddress address
return true;
}
-bool UpdateIfEqual(Core::System& system, s32* out, KProcessAddress address, s32 value,
+bool UpdateIfEqual(KernelCore& kernel, s32* out, KProcessAddress address, s32 value,
s32 new_value) {
- auto& monitor = system.Monitor();
- const auto current_core = system.Kernel().CurrentPhysicalCoreIndex();
+ auto& monitor = GetCurrentProcess(kernel).GetExclusiveMonitor();
+ const auto current_core = kernel.CurrentPhysicalCoreIndex();
// NOTE: If scheduler lock is not held here, interrupt disable is required.
// KScopedInterruptDisable di;
@@ -159,7 +160,7 @@ Result KAddressArbiter::SignalAndIncrementIfEqual(uint64_t addr, s32 value, s32
// Check the userspace value.
s32 user_value{};
- R_UNLESS(UpdateIfEqual(m_system, std::addressof(user_value), addr, value, value + 1),
+ R_UNLESS(UpdateIfEqual(m_kernel, std::addressof(user_value), addr, value, value + 1),
ResultInvalidCurrentMemory);
R_UNLESS(user_value == value, ResultInvalidState);
@@ -219,7 +220,7 @@ Result KAddressArbiter::SignalAndModifyByWaitingCountIfEqual(uint64_t addr, s32
s32 user_value{};
bool succeeded{};
if (value != new_value) {
- succeeded = UpdateIfEqual(m_system, std::addressof(user_value), addr, value, new_value);
+ succeeded = UpdateIfEqual(m_kernel, std::addressof(user_value), addr, value, new_value);
} else {
succeeded = ReadFromUser(m_kernel, std::addressof(user_value), addr);
}
@@ -262,7 +263,7 @@ Result KAddressArbiter::WaitIfLessThan(uint64_t addr, s32 value, bool decrement,
s32 user_value{};
bool succeeded{};
if (decrement) {
- succeeded = DecrementIfLessThan(m_system, std::addressof(user_value), addr, value);
+ succeeded = DecrementIfLessThan(m_kernel, std::addressof(user_value), addr, value);
} else {
succeeded = ReadFromUser(m_kernel, std::addressof(user_value), addr);
}
diff --git a/src/core/hle/kernel/k_client_port.cpp b/src/core/hle/kernel/k_client_port.cpp
index 11b1b977e..68cea978a 100644
--- a/src/core/hle/kernel/k_client_port.cpp
+++ b/src/core/hle/kernel/k_client_port.cpp
@@ -58,9 +58,8 @@ Result KClientPort::CreateSession(KClientSession** out) {
KSession* session{};
// Reserve a new session from the resource limit.
- //! FIXME: we are reserving this from the wrong resource limit!
- KScopedResourceReservation session_reservation(
- m_kernel.ApplicationProcess()->GetResourceLimit(), LimitableResource::SessionCountMax);
+ KScopedResourceReservation session_reservation(GetCurrentProcessPointer(m_kernel),
+ LimitableResource::SessionCountMax);
R_UNLESS(session_reservation.Succeeded(), ResultLimitReached);
// Allocate a session normally.
diff --git a/src/core/hle/kernel/k_condition_variable.cpp b/src/core/hle/kernel/k_condition_variable.cpp
index 7633a51fb..94ea3527a 100644
--- a/src/core/hle/kernel/k_condition_variable.cpp
+++ b/src/core/hle/kernel/k_condition_variable.cpp
@@ -28,10 +28,10 @@ bool WriteToUser(KernelCore& kernel, KProcessAddress address, const u32* p) {
return true;
}
-bool UpdateLockAtomic(Core::System& system, u32* out, KProcessAddress address, u32 if_zero,
+bool UpdateLockAtomic(KernelCore& kernel, u32* out, KProcessAddress address, u32 if_zero,
u32 new_orr_mask) {
- auto& monitor = system.Monitor();
- const auto current_core = system.Kernel().CurrentPhysicalCoreIndex();
+ auto& monitor = GetCurrentProcess(kernel).GetExclusiveMonitor();
+ const auto current_core = kernel.CurrentPhysicalCoreIndex();
u32 expected{};
@@ -208,7 +208,7 @@ void KConditionVariable::SignalImpl(KThread* thread) {
// TODO(bunnei): We should call CanAccessAtomic(..) here.
can_access = true;
if (can_access) [[likely]] {
- UpdateLockAtomic(m_system, std::addressof(prev_tag), address, own_tag,
+ UpdateLockAtomic(m_kernel, std::addressof(prev_tag), address, own_tag,
Svc::HandleWaitMask);
}
}
diff --git a/src/core/hle/kernel/k_handle_table.h b/src/core/hle/kernel/k_handle_table.h
index d7660630c..4e6dcd66b 100644
--- a/src/core/hle/kernel/k_handle_table.h
+++ b/src/core/hle/kernel/k_handle_table.h
@@ -30,7 +30,7 @@ public:
public:
explicit KHandleTable(KernelCore& kernel) : m_kernel(kernel) {}
- Result Initialize(s32 size) {
+ Result Initialize(KProcess* owner, s32 size) {
// Check that the table size is valid.
R_UNLESS(size <= static_cast<s32>(MaxTableSize), ResultOutOfMemory);
@@ -44,6 +44,7 @@ public:
m_next_linear_id = MinLinearId;
m_count = 0;
m_free_head_index = -1;
+ m_owner = owner;
// Free all entries.
for (s32 i = 0; i < static_cast<s32>(m_table_size); ++i) {
@@ -90,8 +91,8 @@ public:
// Handle pseudo-handles.
if constexpr (std::derived_from<KProcess, T>) {
if (handle == Svc::PseudoHandle::CurrentProcess) {
- //! FIXME: this is the wrong process!
- auto* const cur_process = m_kernel.ApplicationProcess();
+ // TODO: this should be the current process
+ auto* const cur_process = m_owner;
ASSERT(cur_process != nullptr);
return cur_process;
}
@@ -301,6 +302,7 @@ private:
private:
KernelCore& m_kernel;
+ KProcess* m_owner{};
std::array<EntryInfo, MaxTableSize> m_entry_infos{};
std::array<KAutoObject*, MaxTableSize> m_objects{};
mutable KSpinLock m_lock;
diff --git a/src/core/hle/kernel/k_process.cpp b/src/core/hle/kernel/k_process.cpp
index 3a2635e1f..d6869c228 100644
--- a/src/core/hle/kernel/k_process.cpp
+++ b/src/core/hle/kernel/k_process.cpp
@@ -306,12 +306,16 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params, const KPa
False(params.flags & Svc::CreateProcessFlag::DisableDeviceAddressSpaceMerge);
R_TRY(m_page_table.Initialize(as_type, enable_aslr, enable_das_merge, !enable_aslr, pool,
params.code_address, params.code_num_pages * PageSize,
- m_system_resource, res_limit, this->GetMemory(), 0));
+ m_system_resource, res_limit, m_memory, 0));
}
ON_RESULT_FAILURE_2 {
m_page_table.Finalize();
};
+ // Ensure our memory is initialized.
+ m_memory.SetCurrentPageTable(*this);
+ m_memory.SetGPUDirtyManagers(m_dirty_memory_managers);
+
// Ensure we can insert the code region.
R_UNLESS(m_page_table.CanContain(params.code_address, params.code_num_pages * PageSize,
KMemoryState::Code),
@@ -399,12 +403,16 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params,
False(params.flags & Svc::CreateProcessFlag::DisableDeviceAddressSpaceMerge);
R_TRY(m_page_table.Initialize(as_type, enable_aslr, enable_das_merge, !enable_aslr, pool,
params.code_address, code_size, m_system_resource, res_limit,
- this->GetMemory(), aslr_space_start));
+ m_memory, aslr_space_start));
}
ON_RESULT_FAILURE_2 {
m_page_table.Finalize();
};
+ // Ensure our memory is initialized.
+ m_memory.SetCurrentPageTable(*this);
+ m_memory.SetGPUDirtyManagers(m_dirty_memory_managers);
+
// Ensure we can insert the code region.
R_UNLESS(m_page_table.CanContain(params.code_address, code_size, KMemoryState::Code),
ResultInvalidMemoryRegion);
@@ -1094,8 +1102,7 @@ void KProcess::UnpinThread(KThread* thread) {
Result KProcess::GetThreadList(s32* out_num_threads, KProcessAddress out_thread_ids,
s32 max_out_count) {
- // TODO: use current memory reference
- auto& memory = m_kernel.System().ApplicationMemory();
+ auto& memory = this->GetMemory();
// Lock the list.
KScopedLightLock lk(m_list_lock);
@@ -1128,14 +1135,15 @@ void KProcess::Switch(KProcess* cur_process, KProcess* next_process) {}
KProcess::KProcess(KernelCore& kernel)
: KAutoObjectWithSlabHeapAndContainer(kernel), m_page_table{kernel}, m_state_lock{kernel},
m_list_lock{kernel}, m_cond_var{kernel.System()}, m_address_arbiter{kernel.System()},
- m_handle_table{kernel} {}
+ m_handle_table{kernel}, m_dirty_memory_managers{},
+ m_exclusive_monitor{}, m_memory{kernel.System()} {}
KProcess::~KProcess() = default;
Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std::size_t code_size,
KProcessAddress aslr_space_start, bool is_hbl) {
// Create a resource limit for the process.
- const auto physical_memory_size =
- m_kernel.MemoryManager().GetSize(Kernel::KMemoryManager::Pool::Application);
+ const auto pool = static_cast<KMemoryManager::Pool>(metadata.GetPoolPartition());
+ const auto physical_memory_size = m_kernel.MemoryManager().GetSize(pool);
auto* res_limit =
Kernel::CreateResourceLimitForProcess(m_kernel.System(), physical_memory_size);
@@ -1146,8 +1154,10 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
Svc::CreateProcessFlag flag{};
u64 code_address{};
- // We are an application.
- flag |= Svc::CreateProcessFlag::IsApplication;
+ // Determine if we are an application.
+ if (pool == KMemoryManager::Pool::Application) {
+ flag |= Svc::CreateProcessFlag::IsApplication;
+ }
// If we are 64-bit, create as such.
if (metadata.Is64BitProgram()) {
@@ -1196,8 +1206,8 @@ Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std:
std::memcpy(params.name.data(), name.data(), sizeof(params.name));
// Initialize for application process.
- R_TRY(this->Initialize(params, metadata.GetKernelCapabilities(), res_limit,
- KMemoryManager::Pool::Application, aslr_space_start));
+ R_TRY(this->Initialize(params, metadata.GetKernelCapabilities(), res_limit, pool,
+ aslr_space_start));
// Assign remaining properties.
m_is_hbl = is_hbl;
@@ -1223,7 +1233,7 @@ void KProcess::LoadModule(CodeSet code_set, KProcessAddress base_addr) {
ReprotectSegment(code_set.DataSegment(), Svc::MemoryPermission::ReadWrite);
#ifdef HAS_NCE
- if (Settings::IsNceEnabled()) {
+ if (this->IsApplication() && Settings::IsNceEnabled()) {
auto& buffer = m_kernel.System().DeviceMemory().buffer;
const auto& code = code_set.CodeSegment();
const auto& patch = code_set.PatchSegment();
@@ -1235,10 +1245,11 @@ void KProcess::LoadModule(CodeSet code_set, KProcessAddress base_addr) {
}
void KProcess::InitializeInterfaces() {
- this->GetMemory().SetCurrentPageTable(*this);
+ m_exclusive_monitor =
+ Core::MakeExclusiveMonitor(this->GetMemory(), Core::Hardware::NUM_CPU_CORES);
#ifdef HAS_NCE
- if (this->Is64Bit() && Settings::IsNceEnabled()) {
+ if (this->IsApplication() && Settings::IsNceEnabled()) {
for (size_t i = 0; i < Core::Hardware::NUM_CPU_CORES; i++) {
m_arm_interfaces[i] = std::make_unique<Core::ArmNce>(m_kernel.System(), true, i);
}
@@ -1248,13 +1259,13 @@ void KProcess::InitializeInterfaces() {
for (size_t i = 0; i < Core::Hardware::NUM_CPU_CORES; i++) {
m_arm_interfaces[i] = std::make_unique<Core::ArmDynarmic64>(
m_kernel.System(), m_kernel.IsMulticore(), this,
- static_cast<Core::DynarmicExclusiveMonitor&>(m_kernel.GetExclusiveMonitor()), i);
+ static_cast<Core::DynarmicExclusiveMonitor&>(*m_exclusive_monitor), i);
}
} else {
for (size_t i = 0; i < Core::Hardware::NUM_CPU_CORES; i++) {
m_arm_interfaces[i] = std::make_unique<Core::ArmDynarmic32>(
m_kernel.System(), m_kernel.IsMulticore(), this,
- static_cast<Core::DynarmicExclusiveMonitor&>(m_kernel.GetExclusiveMonitor()), i);
+ static_cast<Core::DynarmicExclusiveMonitor&>(*m_exclusive_monitor), i);
}
}
}
@@ -1305,9 +1316,10 @@ bool KProcess::RemoveWatchpoint(KProcessAddress addr, u64 size, DebugWatchpointT
return true;
}
-Core::Memory::Memory& KProcess::GetMemory() const {
- // TODO: per-process memory
- return m_kernel.System().ApplicationMemory();
+void KProcess::GatherGPUDirtyMemory(std::function<void(VAddr, size_t)>& callback) {
+ for (auto& manager : m_dirty_memory_managers) {
+ manager.Gather(callback);
+ }
}
} // namespace Kernel
diff --git a/src/core/hle/kernel/k_process.h b/src/core/hle/kernel/k_process.h
index 4b114e39b..b5c6867a1 100644
--- a/src/core/hle/kernel/k_process.h
+++ b/src/core/hle/kernel/k_process.h
@@ -7,6 +7,7 @@
#include "core/arm/arm_interface.h"
#include "core/file_sys/program_metadata.h"
+#include "core/gpu_dirty_memory_manager.h"
#include "core/hle/kernel/code_set.h"
#include "core/hle/kernel/k_address_arbiter.h"
#include "core/hle/kernel/k_capabilities.h"
@@ -17,6 +18,7 @@
#include "core/hle/kernel/k_system_resource.h"
#include "core/hle/kernel/k_thread.h"
#include "core/hle/kernel/k_thread_local_page.h"
+#include "core/memory.h"
namespace Kernel {
@@ -126,6 +128,9 @@ private:
#ifdef HAS_NCE
std::unordered_map<u64, u64> m_post_handlers{};
#endif
+ std::array<Core::GPUDirtyMemoryManager, Core::Hardware::NUM_CPU_CORES> m_dirty_memory_managers;
+ std::unique_ptr<Core::ExclusiveMonitor> m_exclusive_monitor;
+ Core::Memory::Memory m_memory;
private:
Result StartTermination();
@@ -502,7 +507,15 @@ public:
void InitializeInterfaces();
- Core::Memory::Memory& GetMemory() const;
+ Core::Memory::Memory& GetMemory() {
+ return m_memory;
+ }
+
+ void GatherGPUDirtyMemory(std::function<void(VAddr, size_t)>& callback);
+
+ Core::ExclusiveMonitor& GetExclusiveMonitor() const {
+ return *m_exclusive_monitor;
+ }
public:
// Overridden parent functions.
@@ -539,7 +552,7 @@ private:
Result InitializeHandleTable(s32 size) {
// Try to initialize the handle table.
- R_TRY(m_handle_table.Initialize(size));
+ R_TRY(m_handle_table.Initialize(this, size));
// We succeeded, so note that we did.
m_is_handle_table_initialized = true;
diff --git a/src/core/hle/kernel/k_server_session.cpp b/src/core/hle/kernel/k_server_session.cpp
index e33a88e24..f6ca3dc48 100644
--- a/src/core/hle/kernel/k_server_session.cpp
+++ b/src/core/hle/kernel/k_server_session.cpp
@@ -8,6 +8,7 @@
#include "common/common_types.h"
#include "common/logging/log.h"
#include "common/scope_exit.h"
+#include "common/scratch_buffer.h"
#include "core/core.h"
#include "core/core_timing.h"
#include "core/hle/kernel/k_client_port.h"
@@ -29,12 +30,138 @@ namespace Kernel {
namespace {
+constexpr inline size_t PointerTransferBufferAlignment = 0x10;
+constexpr inline size_t ReceiveListDataSize =
+ MessageBuffer::MessageHeader::ReceiveListCountType_CountMax *
+ MessageBuffer::ReceiveListEntry::GetDataSize() / sizeof(u32);
+
+using ThreadQueueImplForKServerSessionRequest = KThreadQueue;
+
+class ReceiveList {
+public:
+ static constexpr int GetEntryCount(const MessageBuffer::MessageHeader& header) {
+ const auto count = header.GetReceiveListCount();
+ switch (count) {
+ case MessageBuffer::MessageHeader::ReceiveListCountType_None:
+ return 0;
+ case MessageBuffer::MessageHeader::ReceiveListCountType_ToMessageBuffer:
+ return 0;
+ case MessageBuffer::MessageHeader::ReceiveListCountType_ToSingleBuffer:
+ return 1;
+ default:
+ return count - MessageBuffer::MessageHeader::ReceiveListCountType_CountOffset;
+ }
+ }
+
+ explicit ReceiveList(const u32* dst_msg, uint64_t dst_address,
+ KProcessPageTable& dst_page_table,
+ const MessageBuffer::MessageHeader& dst_header,
+ const MessageBuffer::SpecialHeader& dst_special_header, size_t msg_size,
+ size_t out_offset, s32 dst_recv_list_idx, bool is_tls) {
+ m_recv_list_count = dst_header.GetReceiveListCount();
+ m_msg_buffer_end = dst_address + sizeof(u32) * out_offset;
+ m_msg_buffer_space_end = dst_address + msg_size;
+
+ // NOTE: Nintendo calculates the receive list index here using the special header.
+ // We pre-calculate it in the caller, and pass it as a parameter.
+ (void)dst_special_header;
+
+ const u32* recv_list = dst_msg + dst_recv_list_idx;
+ const auto entry_count = GetEntryCount(dst_header);
+
+ if (is_tls) {
+ // Messages from TLS to TLS are contained within one page.
+ std::memcpy(m_data.data(), recv_list,
+ entry_count * MessageBuffer::ReceiveListEntry::GetDataSize());
+ } else {
+ // If any buffer is not from TLS, perform a normal read instead.
+ uint64_t cur_addr = dst_address + dst_recv_list_idx * sizeof(u32);
+ dst_page_table.GetMemory().ReadBlock(
+ cur_addr, m_data.data(),
+ entry_count * MessageBuffer::ReceiveListEntry::GetDataSize());
+ }
+ }
+
+ bool IsIndex() const {
+ return m_recv_list_count >
+ static_cast<s32>(MessageBuffer::MessageHeader::ReceiveListCountType_CountOffset);
+ }
+
+ bool IsToMessageBuffer() const {
+ return m_recv_list_count ==
+ MessageBuffer::MessageHeader::ReceiveListCountType_ToMessageBuffer;
+ }
+
+ void GetBuffer(uint64_t& out, size_t size, int& key) const {
+ switch (m_recv_list_count) {
+ case MessageBuffer::MessageHeader::ReceiveListCountType_None: {
+ out = 0;
+ break;
+ }
+ case MessageBuffer::MessageHeader::ReceiveListCountType_ToMessageBuffer: {
+ const uint64_t buf =
+ Common::AlignUp(m_msg_buffer_end + key, PointerTransferBufferAlignment);
+
+ if ((buf < buf + size) && (buf + size <= m_msg_buffer_space_end)) {
+ out = buf;
+ key = static_cast<int>(buf + size - m_msg_buffer_end);
+ } else {
+ out = 0;
+ }
+ break;
+ }
+ case MessageBuffer::MessageHeader::ReceiveListCountType_ToSingleBuffer: {
+ const MessageBuffer::ReceiveListEntry entry(m_data[0], m_data[1]);
+ const uint64_t buf =
+ Common::AlignUp(entry.GetAddress() + key, PointerTransferBufferAlignment);
+
+ const uint64_t entry_addr = entry.GetAddress();
+ const size_t entry_size = entry.GetSize();
+
+ if ((buf < buf + size) && (entry_addr < entry_addr + entry_size) &&
+ (buf + size <= entry_addr + entry_size)) {
+ out = buf;
+ key = static_cast<int>(buf + size - entry_addr);
+ } else {
+ out = 0;
+ }
+ break;
+ }
+ default: {
+ if (key < m_recv_list_count -
+ static_cast<s32>(
+ MessageBuffer::MessageHeader::ReceiveListCountType_CountOffset)) {
+ const MessageBuffer::ReceiveListEntry entry(m_data[2 * key + 0],
+ m_data[2 * key + 1]);
+
+ const uintptr_t entry_addr = entry.GetAddress();
+ const size_t entry_size = entry.GetSize();
+
+ if ((entry_addr < entry_addr + entry_size) && (entry_size >= size)) {
+ out = entry_addr;
+ }
+ } else {
+ out = 0;
+ }
+ break;
+ }
+ }
+ }
+
+private:
+ std::array<u32, ReceiveListDataSize> m_data;
+ s32 m_recv_list_count;
+ uint64_t m_msg_buffer_end;
+ uint64_t m_msg_buffer_space_end;
+};
+
template <bool MoveHandleAllowed>
-Result ProcessMessageSpecialData(KProcess& dst_process, KProcess& src_process, KThread& src_thread,
- MessageBuffer& dst_msg, const MessageBuffer& src_msg,
- MessageBuffer::SpecialHeader& src_special_header) {
+Result ProcessMessageSpecialData(s32& offset, KProcess& dst_process, KProcess& src_process,
+ KThread& src_thread, const MessageBuffer& dst_msg,
+ const MessageBuffer& src_msg,
+ const MessageBuffer::SpecialHeader& src_special_header) {
// Copy the special header to the destination.
- s32 offset = dst_msg.Set(src_special_header);
+ offset = dst_msg.Set(src_special_header);
// Copy the process ID.
if (src_special_header.GetHasProcessId()) {
@@ -110,6 +237,102 @@ Result ProcessMessageSpecialData(KProcess& dst_process, KProcess& src_process, K
R_RETURN(result);
}
+Result ProcessReceiveMessagePointerDescriptors(int& offset, int& pointer_key,
+ KProcessPageTable& dst_page_table,
+ KProcessPageTable& src_page_table,
+ const MessageBuffer& dst_msg,
+ const MessageBuffer& src_msg,
+ const ReceiveList& dst_recv_list, bool dst_user) {
+ // Get the offset at the start of processing.
+ const int cur_offset = offset;
+
+ // Get the pointer desc.
+ MessageBuffer::PointerDescriptor src_desc(src_msg, cur_offset);
+ offset += static_cast<int>(MessageBuffer::PointerDescriptor::GetDataSize() / sizeof(u32));
+
+ // Extract address/size.
+ const uint64_t src_pointer = src_desc.GetAddress();
+ const size_t recv_size = src_desc.GetSize();
+ uint64_t recv_pointer = 0;
+
+ // Process the buffer, if it has a size.
+ if (recv_size > 0) {
+ // If using indexing, set index.
+ if (dst_recv_list.IsIndex()) {
+ pointer_key = src_desc.GetIndex();
+ }
+
+ // Get the buffer.
+ dst_recv_list.GetBuffer(recv_pointer, recv_size, pointer_key);
+ R_UNLESS(recv_pointer != 0, ResultOutOfResource);
+
+ // Perform the pointer data copy.
+ if (dst_user) {
+ R_TRY(src_page_table.CopyMemoryFromHeapToHeapWithoutCheckDestination(
+ dst_page_table, recv_pointer, recv_size, KMemoryState::FlagReferenceCounted,
+ KMemoryState::FlagReferenceCounted,
+ KMemoryPermission::NotMapped | KMemoryPermission::KernelReadWrite,
+ KMemoryAttribute::Uncached | KMemoryAttribute::Locked, KMemoryAttribute::Locked,
+ src_pointer, KMemoryState::FlagLinearMapped, KMemoryState::FlagLinearMapped,
+ KMemoryPermission::UserRead, KMemoryAttribute::Uncached, KMemoryAttribute::None));
+ } else {
+ R_TRY(src_page_table.CopyMemoryFromLinearToUser(
+ recv_pointer, recv_size, src_pointer, KMemoryState::FlagLinearMapped,
+ KMemoryState::FlagLinearMapped, KMemoryPermission::UserRead,
+ KMemoryAttribute::Uncached, KMemoryAttribute::None));
+ }
+ }
+
+ // Set the output descriptor.
+ dst_msg.Set(cur_offset, MessageBuffer::PointerDescriptor(reinterpret_cast<void*>(recv_pointer),
+ recv_size, src_desc.GetIndex()));
+
+ R_SUCCEED();
+}
+
+constexpr Result GetMapAliasMemoryState(KMemoryState& out,
+ MessageBuffer::MapAliasDescriptor::Attribute attr) {
+ switch (attr) {
+ case MessageBuffer::MapAliasDescriptor::Attribute::Ipc:
+ out = KMemoryState::Ipc;
+ break;
+ case MessageBuffer::MapAliasDescriptor::Attribute::NonSecureIpc:
+ out = KMemoryState::NonSecureIpc;
+ break;
+ case MessageBuffer::MapAliasDescriptor::Attribute::NonDeviceIpc:
+ out = KMemoryState::NonDeviceIpc;
+ break;
+ default:
+ R_THROW(ResultInvalidCombination);
+ }
+
+ R_SUCCEED();
+}
+
+constexpr Result GetMapAliasTestStateAndAttributeMask(KMemoryState& out_state,
+ KMemoryAttribute& out_attr_mask,
+ KMemoryState state) {
+ switch (state) {
+ case KMemoryState::Ipc:
+ out_state = KMemoryState::FlagCanUseIpc;
+ out_attr_mask =
+ KMemoryAttribute::Uncached | KMemoryAttribute::DeviceShared | KMemoryAttribute::Locked;
+ break;
+ case KMemoryState::NonSecureIpc:
+ out_state = KMemoryState::FlagCanUseNonSecureIpc;
+ out_attr_mask = KMemoryAttribute::Uncached | KMemoryAttribute::Locked;
+ break;
+ case KMemoryState::NonDeviceIpc:
+ out_state = KMemoryState::FlagCanUseNonDeviceIpc;
+ out_attr_mask = KMemoryAttribute::Uncached | KMemoryAttribute::Locked;
+ break;
+ default:
+ R_THROW(ResultInvalidCombination);
+ }
+
+ R_SUCCEED();
+}
+
void CleanupSpecialData(KProcess& dst_process, u32* dst_msg_ptr, size_t dst_buffer_size) {
// Parse the message.
const MessageBuffer dst_msg(dst_msg_ptr, dst_buffer_size);
@@ -144,166 +367,856 @@ void CleanupSpecialData(KProcess& dst_process, u32* dst_msg_ptr, size_t dst_buff
}
}
-} // namespace
+Result CleanupServerHandles(KernelCore& kernel, uint64_t message, size_t buffer_size,
+ KPhysicalAddress message_paddr) {
+ // Server is assumed to be current thread.
+ KThread& thread = GetCurrentThread(kernel);
-using ThreadQueueImplForKServerSessionRequest = KThreadQueue;
+ // Get the linear message pointer.
+ u32* msg_ptr;
+ if (message) {
+ msg_ptr = kernel.System().DeviceMemory().GetPointer<u32>(message_paddr);
+ } else {
+ msg_ptr = GetCurrentMemory(kernel).GetPointer<u32>(thread.GetTlsAddress());
+ buffer_size = MessageBufferSize;
+ message = GetInteger(thread.GetTlsAddress());
+ }
-KServerSession::KServerSession(KernelCore& kernel)
- : KSynchronizationObject{kernel}, m_lock{m_kernel} {}
+ // Parse the message.
+ const MessageBuffer msg(msg_ptr, buffer_size);
+ const MessageBuffer::MessageHeader header(msg);
+ const MessageBuffer::SpecialHeader special_header(msg, header);
-KServerSession::~KServerSession() = default;
+ // Check that the size is big enough.
+ R_UNLESS(MessageBuffer::GetMessageBufferSize(header, special_header) <= buffer_size,
+ ResultInvalidCombination);
+
+ // If there's a special header, there may be move handles we need to close.
+ if (header.GetHasSpecialHeader()) {
+ // Determine the offset to the start of handles.
+ auto offset = msg.GetSpecialDataIndex(header, special_header);
+ if (special_header.GetHasProcessId()) {
+ offset += static_cast<int>(sizeof(u64) / sizeof(u32));
+ }
+ if (auto copy_count = special_header.GetCopyHandleCount(); copy_count > 0) {
+ offset += static_cast<int>((sizeof(Svc::Handle) * copy_count) / sizeof(u32));
+ }
-void KServerSession::Destroy() {
- m_parent->OnServerClosed();
+ // Get the handle table.
+ auto& handle_table = thread.GetOwnerProcess()->GetHandleTable();
- this->CleanupRequests();
+ // Close the handles.
+ for (auto i = 0; i < special_header.GetMoveHandleCount(); ++i) {
+ handle_table.Remove(msg.GetHandle(offset));
+ offset += static_cast<int>(sizeof(Svc::Handle) / sizeof(u32));
+ }
+ }
- m_parent->Close();
+ R_SUCCEED();
}
-void KServerSession::OnClientClosed() {
- KScopedLightLock lk{m_lock};
+Result CleanupServerMap(KSessionRequest* request, KProcess* server_process) {
+ // If there's no server process, there's nothing to clean up.
+ R_SUCCEED_IF(server_process == nullptr);
- // Handle any pending requests.
- KSessionRequest* prev_request = nullptr;
- while (true) {
- // Declare variables for processing the request.
- KSessionRequest* request = nullptr;
- KEvent* event = nullptr;
- KThread* thread = nullptr;
- bool cur_request = false;
- bool terminate = false;
+ // Get the page table.
+ auto& server_page_table = server_process->GetPageTable();
- // Get the next request.
- {
- KScopedSchedulerLock sl{m_kernel};
+ // Cleanup Send mappings.
+ for (size_t i = 0; i < request->GetSendCount(); ++i) {
+ R_TRY(server_page_table.CleanupForIpcServer(request->GetSendServerAddress(i),
+ request->GetSendSize(i),
+ request->GetSendMemoryState(i)));
+ }
- if (m_current_request != nullptr && m_current_request != prev_request) {
- // Set the request, open a reference as we process it.
- request = m_current_request;
- request->Open();
- cur_request = true;
+ // Cleanup Receive mappings.
+ for (size_t i = 0; i < request->GetReceiveCount(); ++i) {
+ R_TRY(server_page_table.CleanupForIpcServer(request->GetReceiveServerAddress(i),
+ request->GetReceiveSize(i),
+ request->GetReceiveMemoryState(i)));
+ }
- // Get thread and event for the request.
- thread = request->GetThread();
- event = request->GetEvent();
+ // Cleanup Exchange mappings.
+ for (size_t i = 0; i < request->GetExchangeCount(); ++i) {
+ R_TRY(server_page_table.CleanupForIpcServer(request->GetExchangeServerAddress(i),
+ request->GetExchangeSize(i),
+ request->GetExchangeMemoryState(i)));
+ }
- // If the thread is terminating, handle that.
- if (thread->IsTerminationRequested()) {
- request->ClearThread();
- request->ClearEvent();
- terminate = true;
- }
+ R_SUCCEED();
+}
- prev_request = request;
- } else if (!m_request_list.empty()) {
- // Pop the request from the front of the list.
- request = std::addressof(m_request_list.front());
- m_request_list.pop_front();
+Result CleanupClientMap(KSessionRequest* request, KProcessPageTable* client_page_table) {
+ // If there's no client page table, there's nothing to clean up.
+ R_SUCCEED_IF(client_page_table == nullptr);
- // Get thread and event for the request.
- thread = request->GetThread();
- event = request->GetEvent();
- }
+ // Cleanup Send mappings.
+ for (size_t i = 0; i < request->GetSendCount(); ++i) {
+ R_TRY(client_page_table->CleanupForIpcClient(request->GetSendClientAddress(i),
+ request->GetSendSize(i),
+ request->GetSendMemoryState(i)));
+ }
+
+ // Cleanup Receive mappings.
+ for (size_t i = 0; i < request->GetReceiveCount(); ++i) {
+ R_TRY(client_page_table->CleanupForIpcClient(request->GetReceiveClientAddress(i),
+ request->GetReceiveSize(i),
+ request->GetReceiveMemoryState(i)));
+ }
+
+ // Cleanup Exchange mappings.
+ for (size_t i = 0; i < request->GetExchangeCount(); ++i) {
+ R_TRY(client_page_table->CleanupForIpcClient(request->GetExchangeClientAddress(i),
+ request->GetExchangeSize(i),
+ request->GetExchangeMemoryState(i)));
+ }
+
+ R_SUCCEED();
+}
+
+Result CleanupMap(KSessionRequest* request, KProcess* server_process,
+ KProcessPageTable* client_page_table) {
+ // Cleanup the server map.
+ R_TRY(CleanupServerMap(request, server_process));
+
+ // Cleanup the client map.
+ R_TRY(CleanupClientMap(request, client_page_table));
+
+ R_SUCCEED();
+}
+
+Result ProcessReceiveMessageMapAliasDescriptors(int& offset, KProcessPageTable& dst_page_table,
+ KProcessPageTable& src_page_table,
+ const MessageBuffer& dst_msg,
+ const MessageBuffer& src_msg,
+ KSessionRequest* request, KMemoryPermission perm,
+ bool send) {
+ // Get the offset at the start of processing.
+ const int cur_offset = offset;
+
+ // Get the map alias descriptor.
+ MessageBuffer::MapAliasDescriptor src_desc(src_msg, cur_offset);
+ offset += static_cast<int>(MessageBuffer::MapAliasDescriptor::GetDataSize() / sizeof(u32));
+
+ // Extract address/size.
+ const KProcessAddress src_address = src_desc.GetAddress();
+ const size_t size = src_desc.GetSize();
+ KProcessAddress dst_address = 0;
+
+ // Determine the result memory state.
+ KMemoryState dst_state;
+ R_TRY(GetMapAliasMemoryState(dst_state, src_desc.GetAttribute()));
+
+ // Process the buffer, if it has a size.
+ if (size > 0) {
+ // Set up the source pages for ipc.
+ R_TRY(dst_page_table.SetupForIpc(std::addressof(dst_address), size, src_address,
+ src_page_table, perm, dst_state, send));
+
+ // Ensure that we clean up on failure.
+ ON_RESULT_FAILURE {
+ dst_page_table.CleanupForIpcServer(dst_address, size, dst_state);
+ src_page_table.CleanupForIpcClient(src_address, size, dst_state);
+ };
+
+ // Push the appropriate mapping.
+ if (perm == KMemoryPermission::UserRead) {
+ R_TRY(request->PushSend(src_address, dst_address, size, dst_state));
+ } else if (send) {
+ R_TRY(request->PushExchange(src_address, dst_address, size, dst_state));
+ } else {
+ R_TRY(request->PushReceive(src_address, dst_address, size, dst_state));
}
+ }
- // If there are no requests, we're done.
- if (request == nullptr) {
- break;
+ // Set the output descriptor.
+ dst_msg.Set(cur_offset,
+ MessageBuffer::MapAliasDescriptor(reinterpret_cast<void*>(GetInteger(dst_address)),
+ size, src_desc.GetAttribute()));
+
+ R_SUCCEED();
+}
+
+Result ReceiveMessage(KernelCore& kernel, bool& recv_list_broken, uint64_t dst_message_buffer,
+ size_t dst_buffer_size, KPhysicalAddress dst_message_paddr,
+ KThread& src_thread, uint64_t src_message_buffer, size_t src_buffer_size,
+ KServerSession* session, KSessionRequest* request) {
+ // Prepare variables for receive.
+ KThread& dst_thread = GetCurrentThread(kernel);
+ KProcess& dst_process = *(dst_thread.GetOwnerProcess());
+ KProcess& src_process = *(src_thread.GetOwnerProcess());
+ auto& dst_page_table = dst_process.GetPageTable();
+ auto& src_page_table = src_process.GetPageTable();
+
+ // NOTE: Session is used only for debugging, and so may go unused.
+ (void)session;
+
+ // The receive list is initially not broken.
+ recv_list_broken = false;
+
+ // Set the server process for the request.
+ request->SetServerProcess(std::addressof(dst_process));
+
+ // Determine the message buffers.
+ u32 *dst_msg_ptr, *src_msg_ptr;
+ bool dst_user, src_user;
+
+ if (dst_message_buffer) {
+ dst_msg_ptr = kernel.System().DeviceMemory().GetPointer<u32>(dst_message_paddr);
+ dst_user = true;
+ } else {
+ dst_msg_ptr = dst_page_table.GetMemory().GetPointer<u32>(dst_thread.GetTlsAddress());
+ dst_buffer_size = MessageBufferSize;
+ dst_message_buffer = GetInteger(dst_thread.GetTlsAddress());
+ dst_user = false;
+ }
+
+ if (src_message_buffer) {
+ // NOTE: Nintendo does not check the result of this GetPhysicalAddress call.
+ src_msg_ptr = src_page_table.GetMemory().GetPointer<u32>(src_message_buffer);
+ src_user = true;
+ } else {
+ src_msg_ptr = src_page_table.GetMemory().GetPointer<u32>(src_thread.GetTlsAddress());
+ src_buffer_size = MessageBufferSize;
+ src_message_buffer = GetInteger(src_thread.GetTlsAddress());
+ src_user = false;
+ }
+
+ // Parse the headers.
+ const MessageBuffer dst_msg(dst_msg_ptr, dst_buffer_size);
+ const MessageBuffer src_msg(src_msg_ptr, src_buffer_size);
+ const MessageBuffer::MessageHeader dst_header(dst_msg);
+ const MessageBuffer::MessageHeader src_header(src_msg);
+ const MessageBuffer::SpecialHeader dst_special_header(dst_msg, dst_header);
+ const MessageBuffer::SpecialHeader src_special_header(src_msg, src_header);
+
+ // Get the end of the source message.
+ const size_t src_end_offset =
+ MessageBuffer::GetRawDataIndex(src_header, src_special_header) + src_header.GetRawCount();
+
+ // Ensure that the headers fit.
+ R_UNLESS(MessageBuffer::GetMessageBufferSize(dst_header, dst_special_header) <= dst_buffer_size,
+ ResultInvalidCombination);
+ R_UNLESS(MessageBuffer::GetMessageBufferSize(src_header, src_special_header) <= src_buffer_size,
+ ResultInvalidCombination);
+
+ // Ensure the receive list offset is after the end of raw data.
+ if (dst_header.GetReceiveListOffset()) {
+ R_UNLESS(dst_header.GetReceiveListOffset() >=
+ MessageBuffer::GetRawDataIndex(dst_header, dst_special_header) +
+ dst_header.GetRawCount(),
+ ResultInvalidCombination);
+ }
+
+ // Ensure that the destination buffer is big enough to receive the source.
+ R_UNLESS(dst_buffer_size >= src_end_offset * sizeof(u32), ResultMessageTooLarge);
+
+ // Get the receive list.
+ const s32 dst_recv_list_idx =
+ MessageBuffer::GetReceiveListIndex(dst_header, dst_special_header);
+ ReceiveList dst_recv_list(dst_msg_ptr, dst_message_buffer, dst_page_table, dst_header,
+ dst_special_header, dst_buffer_size, src_end_offset,
+ dst_recv_list_idx, !dst_user);
+
+ // Ensure that the source special header isn't invalid.
+ const bool src_has_special_header = src_header.GetHasSpecialHeader();
+ if (src_has_special_header) {
+ // Sending move handles from client -> server is not allowed.
+ R_UNLESS(src_special_header.GetMoveHandleCount() == 0, ResultInvalidCombination);
+ }
+
+ // Prepare for further processing.
+ int pointer_key = 0;
+ int offset = dst_msg.Set(src_header);
+
+ // Set up a guard to make sure that we end up in a clean state on error.
+ ON_RESULT_FAILURE {
+ // Cleanup mappings.
+ CleanupMap(request, std::addressof(dst_process), std::addressof(src_page_table));
+
+ // Cleanup special data.
+ if (src_header.GetHasSpecialHeader()) {
+ CleanupSpecialData(dst_process, dst_msg_ptr, dst_buffer_size);
}
- // All requests must have threads.
- ASSERT(thread != nullptr);
+ // Cleanup the header if the receive list isn't broken.
+ if (!recv_list_broken) {
+ dst_msg.Set(dst_header);
+ if (dst_header.GetHasSpecialHeader()) {
+ dst_msg.Set(dst_special_header);
+ }
+ }
+ };
+
+ // Process any special data.
+ if (src_header.GetHasSpecialHeader()) {
+ // After we process, make sure we track whether the receive list is broken.
+ SCOPE_EXIT({
+ if (offset > dst_recv_list_idx) {
+ recv_list_broken = true;
+ }
+ });
- // Ensure that we close the request when done.
- SCOPE_EXIT({ request->Close(); });
+ // Process special data.
+ R_TRY(ProcessMessageSpecialData<false>(offset, dst_process, src_process, src_thread,
+ dst_msg, src_msg, src_special_header));
+ }
- // If we're terminating, close a reference to the thread and event.
- if (terminate) {
- thread->Close();
- if (event != nullptr) {
- event->Close();
+ // Process any pointer buffers.
+ for (auto i = 0; i < src_header.GetPointerCount(); ++i) {
+ // After we process, make sure we track whether the receive list is broken.
+ SCOPE_EXIT({
+ if (offset > dst_recv_list_idx) {
+ recv_list_broken = true;
+ }
+ });
+
+ R_TRY(ProcessReceiveMessagePointerDescriptors(
+ offset, pointer_key, dst_page_table, src_page_table, dst_msg, src_msg, dst_recv_list,
+ dst_user && dst_header.GetReceiveListCount() ==
+ MessageBuffer::MessageHeader::ReceiveListCountType_ToMessageBuffer));
+ }
+
+ // Process any map alias buffers.
+ for (auto i = 0; i < src_header.GetMapAliasCount(); ++i) {
+ // After we process, make sure we track whether the receive list is broken.
+ SCOPE_EXIT({
+ if (offset > dst_recv_list_idx) {
+ recv_list_broken = true;
+ }
+ });
+
+ // We process in order send, recv, exch. Buffers after send (recv/exch) are ReadWrite.
+ const KMemoryPermission perm = (i >= src_header.GetSendCount())
+ ? KMemoryPermission::UserReadWrite
+ : KMemoryPermission::UserRead;
+
+ // Buffer is send if it is send or exch.
+ const bool send = (i < src_header.GetSendCount()) ||
+ (i >= src_header.GetSendCount() + src_header.GetReceiveCount());
+
+ R_TRY(ProcessReceiveMessageMapAliasDescriptors(offset, dst_page_table, src_page_table,
+ dst_msg, src_msg, request, perm, send));
+ }
+
+ // Process any raw data.
+ if (const auto raw_count = src_header.GetRawCount(); raw_count != 0) {
+ // After we process, make sure we track whether the receive list is broken.
+ SCOPE_EXIT({
+ if (offset + raw_count > dst_recv_list_idx) {
+ recv_list_broken = true;
}
+ });
+
+ // Get the offset and size.
+ const size_t offset_words = offset * sizeof(u32);
+ const size_t raw_size = raw_count * sizeof(u32);
+
+ if (!dst_user && !src_user) {
+ // Fast case is TLS -> TLS, do raw memcpy if we can.
+ std::memcpy(dst_msg_ptr + offset, src_msg_ptr + offset, raw_size);
+ } else if (dst_user) {
+ // Determine how much fast size we can copy.
+ const size_t max_fast_size = std::min<size_t>(offset_words + raw_size, PageSize);
+ const size_t fast_size = max_fast_size - offset_words;
+
+ // Determine source state; if user buffer, we require heap, and otherwise only linear
+ // mapped (to enable tls use).
+ const auto src_state =
+ src_user ? KMemoryState::FlagReferenceCounted : KMemoryState::FlagLinearMapped;
+
+ // Determine the source permission. User buffer should be unmapped + read, TLS should be
+ // user readable.
+ const KMemoryPermission src_perm = static_cast<KMemoryPermission>(
+ src_user ? KMemoryPermission::NotMapped | KMemoryPermission::KernelRead
+ : KMemoryPermission::UserRead);
+
+ // Perform the fast part of the copy.
+ R_TRY(src_page_table.CopyMemoryFromLinearToKernel(
+ dst_msg_ptr + offset, fast_size, src_message_buffer + offset_words, src_state,
+ src_state, src_perm, KMemoryAttribute::Uncached, KMemoryAttribute::None));
+
+ // If the fast part of the copy didn't get everything, perform the slow part of the
+ // copy.
+ if (fast_size < raw_size) {
+ R_TRY(src_page_table.CopyMemoryFromHeapToHeap(
+ dst_page_table, dst_message_buffer + max_fast_size, raw_size - fast_size,
+ KMemoryState::FlagReferenceCounted, KMemoryState::FlagReferenceCounted,
+ KMemoryPermission::NotMapped | KMemoryPermission::KernelReadWrite,
+ KMemoryAttribute::Uncached | KMemoryAttribute::Locked, KMemoryAttribute::Locked,
+ src_message_buffer + max_fast_size, src_state, src_state, src_perm,
+ KMemoryAttribute::Uncached, KMemoryAttribute::None));
+ }
+ } else /* if (src_user) */ {
+ // The source is a user buffer, so it should be unmapped + readable.
+ constexpr KMemoryPermission SourcePermission = static_cast<KMemoryPermission>(
+ KMemoryPermission::NotMapped | KMemoryPermission::KernelRead);
+
+ // Copy the memory.
+ R_TRY(src_page_table.CopyMemoryFromLinearToUser(
+ dst_message_buffer + offset_words, raw_size, src_message_buffer + offset_words,
+ KMemoryState::FlagReferenceCounted, KMemoryState::FlagReferenceCounted,
+ SourcePermission, KMemoryAttribute::Uncached, KMemoryAttribute::None));
}
+ }
- // If we need to, reply.
- if (event != nullptr && !cur_request) {
- // There must be no mappings.
- ASSERT(request->GetSendCount() == 0);
- ASSERT(request->GetReceiveCount() == 0);
- ASSERT(request->GetExchangeCount() == 0);
+ // We succeeded!
+ R_SUCCEED();
+}
- // // Get the process and page table.
- // KProcess *client_process = thread->GetOwnerProcess();
- // auto& client_pt = client_process->GetPageTable();
+Result ProcessSendMessageReceiveMapping(KProcessPageTable& src_page_table,
+ KProcessPageTable& dst_page_table,
+ KProcessAddress client_address,
+ KProcessAddress server_address, size_t size,
+ KMemoryState src_state) {
+ // If the size is zero, there's nothing to process.
+ R_SUCCEED_IF(size == 0);
+
+ // Get the memory state and attribute mask to test.
+ KMemoryState test_state;
+ KMemoryAttribute test_attr_mask;
+ R_TRY(GetMapAliasTestStateAndAttributeMask(test_state, test_attr_mask, src_state));
+
+ // Determine buffer extents.
+ KProcessAddress aligned_dst_start = Common::AlignDown(GetInteger(client_address), PageSize);
+ KProcessAddress aligned_dst_end = Common::AlignUp(GetInteger(client_address) + size, PageSize);
+ KProcessAddress mapping_dst_start = Common::AlignUp(GetInteger(client_address), PageSize);
+ KProcessAddress mapping_dst_end =
+ Common::AlignDown(GetInteger(client_address) + size, PageSize);
+
+ KProcessAddress mapping_src_end =
+ Common::AlignDown(GetInteger(server_address) + size, PageSize);
+
+ // If the start of the buffer is unaligned, handle that.
+ if (aligned_dst_start != mapping_dst_start) {
+ ASSERT(client_address < mapping_dst_start);
+ const size_t copy_size = std::min<size_t>(size, mapping_dst_start - client_address);
+ R_TRY(dst_page_table.CopyMemoryFromUserToLinear(
+ client_address, copy_size, test_state, test_state, KMemoryPermission::UserReadWrite,
+ test_attr_mask, KMemoryAttribute::None, server_address));
+ }
- // // Reply to the request.
- // ReplyAsyncError(client_process, request->GetAddress(), request->GetSize(),
- // ResultSessionClosed);
+ // If the end of the buffer is unaligned, handle that.
+ if (mapping_dst_end < aligned_dst_end &&
+ (aligned_dst_start == mapping_dst_start || aligned_dst_start < mapping_dst_end)) {
+ const size_t copy_size = client_address + size - mapping_dst_end;
+ R_TRY(dst_page_table.CopyMemoryFromUserToLinear(
+ mapping_dst_end, copy_size, test_state, test_state, KMemoryPermission::UserReadWrite,
+ test_attr_mask, KMemoryAttribute::None, mapping_src_end));
+ }
- // // Unlock the buffer.
- // // NOTE: Nintendo does not check the result of this.
- // client_pt.UnlockForIpcUserBuffer(request->GetAddress(), request->GetSize());
+ R_SUCCEED();
+}
- // Signal the event.
- event->Signal();
+Result ProcessSendMessagePointerDescriptors(int& offset, int& pointer_key,
+ KProcessPageTable& src_page_table,
+ KProcessPageTable& dst_page_table,
+ const MessageBuffer& dst_msg,
+ const MessageBuffer& src_msg,
+ const ReceiveList& dst_recv_list, bool dst_user) {
+ // Get the offset at the start of processing.
+ const int cur_offset = offset;
+
+ // Get the pointer desc.
+ MessageBuffer::PointerDescriptor src_desc(src_msg, cur_offset);
+ offset += static_cast<int>(MessageBuffer::PointerDescriptor::GetDataSize() / sizeof(u32));
+
+ // Extract address/size.
+ const uint64_t src_pointer = src_desc.GetAddress();
+ const size_t recv_size = src_desc.GetSize();
+ uint64_t recv_pointer = 0;
+
+ // Process the buffer, if it has a size.
+ if (recv_size > 0) {
+ // If using indexing, set index.
+ if (dst_recv_list.IsIndex()) {
+ pointer_key = src_desc.GetIndex();
}
+
+ // Get the buffer.
+ dst_recv_list.GetBuffer(recv_pointer, recv_size, pointer_key);
+ R_UNLESS(recv_pointer != 0, ResultOutOfResource);
+
+ // Perform the pointer data copy.
+ const bool dst_heap = dst_user && dst_recv_list.IsToMessageBuffer();
+ const auto dst_state =
+ dst_heap ? KMemoryState::FlagReferenceCounted : KMemoryState::FlagLinearMapped;
+ const KMemoryPermission dst_perm =
+ dst_heap ? KMemoryPermission::NotMapped | KMemoryPermission::KernelReadWrite
+ : KMemoryPermission::UserReadWrite;
+ R_TRY(dst_page_table.CopyMemoryFromUserToLinear(
+ recv_pointer, recv_size, dst_state, dst_state, dst_perm, KMemoryAttribute::Uncached,
+ KMemoryAttribute::None, src_pointer));
}
- // Notify.
- this->NotifyAvailable(ResultSessionClosed);
+ // Set the output descriptor.
+ dst_msg.Set(cur_offset, MessageBuffer::PointerDescriptor(reinterpret_cast<void*>(recv_pointer),
+ recv_size, src_desc.GetIndex()));
+
+ R_SUCCEED();
}
-bool KServerSession::IsSignaled() const {
- ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(m_kernel));
+Result SendMessage(KernelCore& kernel, uint64_t src_message_buffer, size_t src_buffer_size,
+ KPhysicalAddress src_message_paddr, KThread& dst_thread,
+ uint64_t dst_message_buffer, size_t dst_buffer_size, KServerSession* session,
+ KSessionRequest* request) {
+ // Prepare variables for send.
+ KThread& src_thread = GetCurrentThread(kernel);
+ KProcess& dst_process = *(dst_thread.GetOwnerProcess());
+ KProcess& src_process = *(src_thread.GetOwnerProcess());
+ auto& dst_page_table = dst_process.GetPageTable();
+ auto& src_page_table = src_process.GetPageTable();
+
+ // NOTE: Session is used only for debugging, and so may go unused.
+ (void)session;
+
+ // Determine the message buffers.
+ u32 *dst_msg_ptr, *src_msg_ptr;
+ bool dst_user, src_user;
+
+ if (dst_message_buffer) {
+ // NOTE: Nintendo does not check the result of this GetPhysicalAddress call.
+ dst_msg_ptr = dst_page_table.GetMemory().GetPointer<u32>(dst_message_buffer);
+ dst_user = true;
+ } else {
+ dst_msg_ptr = dst_page_table.GetMemory().GetPointer<u32>(dst_thread.GetTlsAddress());
+ dst_buffer_size = MessageBufferSize;
+ dst_message_buffer = GetInteger(dst_thread.GetTlsAddress());
+ dst_user = false;
+ }
- // If the client is closed, we're always signaled.
- if (m_parent->IsClientClosed()) {
- return true;
+ if (src_message_buffer) {
+ src_msg_ptr = src_page_table.GetMemory().GetPointer<u32>(src_message_buffer);
+ src_user = true;
+ } else {
+ src_msg_ptr = src_page_table.GetMemory().GetPointer<u32>(src_thread.GetTlsAddress());
+ src_buffer_size = MessageBufferSize;
+ src_message_buffer = GetInteger(src_thread.GetTlsAddress());
+ src_user = false;
}
- // Otherwise, we're signaled if we have a request and aren't handling one.
- return !m_request_list.empty() && m_current_request == nullptr;
+ // Parse the headers.
+ const MessageBuffer dst_msg(dst_msg_ptr, dst_buffer_size);
+ const MessageBuffer src_msg(src_msg_ptr, src_buffer_size);
+ const MessageBuffer::MessageHeader dst_header(dst_msg);
+ const MessageBuffer::MessageHeader src_header(src_msg);
+ const MessageBuffer::SpecialHeader dst_special_header(dst_msg, dst_header);
+ const MessageBuffer::SpecialHeader src_special_header(src_msg, src_header);
+
+ // Get the end of the source message.
+ const size_t src_end_offset =
+ MessageBuffer::GetRawDataIndex(src_header, src_special_header) + src_header.GetRawCount();
+
+ // Declare variables for processing.
+ int offset = 0;
+ int pointer_key = 0;
+ bool processed_special_data = false;
+
+ // Send the message.
+ {
+ // Make sure that we end up in a clean state on error.
+ ON_RESULT_FAILURE {
+ // Cleanup special data.
+ if (processed_special_data) {
+ if (src_header.GetHasSpecialHeader()) {
+ CleanupSpecialData(dst_process, dst_msg_ptr, dst_buffer_size);
+ }
+ } else {
+ CleanupServerHandles(kernel, src_user ? src_message_buffer : 0, src_buffer_size,
+ src_message_paddr);
+ }
+
+ // Cleanup mappings.
+ CleanupMap(request, std::addressof(src_process), std::addressof(dst_page_table));
+ };
+
+ // Ensure that the headers fit.
+ R_UNLESS(MessageBuffer::GetMessageBufferSize(src_header, src_special_header) <=
+ src_buffer_size,
+ ResultInvalidCombination);
+ R_UNLESS(MessageBuffer::GetMessageBufferSize(dst_header, dst_special_header) <=
+ dst_buffer_size,
+ ResultInvalidCombination);
+
+ // Ensure the receive list offset is after the end of raw data.
+ if (dst_header.GetReceiveListOffset()) {
+ R_UNLESS(dst_header.GetReceiveListOffset() >=
+ MessageBuffer::GetRawDataIndex(dst_header, dst_special_header) +
+ dst_header.GetRawCount(),
+ ResultInvalidCombination);
+ }
+
+ // Ensure that the destination buffer is big enough to receive the source.
+ R_UNLESS(dst_buffer_size >= src_end_offset * sizeof(u32), ResultMessageTooLarge);
+
+ // Replies must have no buffers.
+ R_UNLESS(src_header.GetSendCount() == 0, ResultInvalidCombination);
+ R_UNLESS(src_header.GetReceiveCount() == 0, ResultInvalidCombination);
+ R_UNLESS(src_header.GetExchangeCount() == 0, ResultInvalidCombination);
+
+ // Get the receive list.
+ const s32 dst_recv_list_idx =
+ MessageBuffer::GetReceiveListIndex(dst_header, dst_special_header);
+ ReceiveList dst_recv_list(dst_msg_ptr, dst_message_buffer, dst_page_table, dst_header,
+ dst_special_header, dst_buffer_size, src_end_offset,
+ dst_recv_list_idx, !dst_user);
+
+ // Handle any receive buffers.
+ for (size_t i = 0; i < request->GetReceiveCount(); ++i) {
+ R_TRY(ProcessSendMessageReceiveMapping(
+ src_page_table, dst_page_table, request->GetReceiveClientAddress(i),
+ request->GetReceiveServerAddress(i), request->GetReceiveSize(i),
+ request->GetReceiveMemoryState(i)));
+ }
+
+ // Handle any exchange buffers.
+ for (size_t i = 0; i < request->GetExchangeCount(); ++i) {
+ R_TRY(ProcessSendMessageReceiveMapping(
+ src_page_table, dst_page_table, request->GetExchangeClientAddress(i),
+ request->GetExchangeServerAddress(i), request->GetExchangeSize(i),
+ request->GetExchangeMemoryState(i)));
+ }
+
+ // Set the header.
+ offset = dst_msg.Set(src_header);
+
+ // Process any special data.
+ ASSERT(GetCurrentThreadPointer(kernel) == std::addressof(src_thread));
+ processed_special_data = true;
+ if (src_header.GetHasSpecialHeader()) {
+ R_TRY(ProcessMessageSpecialData<true>(offset, dst_process, src_process, src_thread,
+ dst_msg, src_msg, src_special_header));
+ }
+
+ // Process any pointer buffers.
+ for (auto i = 0; i < src_header.GetPointerCount(); ++i) {
+ R_TRY(ProcessSendMessagePointerDescriptors(
+ offset, pointer_key, src_page_table, dst_page_table, dst_msg, src_msg,
+ dst_recv_list,
+ dst_user &&
+ dst_header.GetReceiveListCount() ==
+ MessageBuffer::MessageHeader::ReceiveListCountType_ToMessageBuffer));
+ }
+
+ // Clear any map alias buffers.
+ for (auto i = 0; i < src_header.GetMapAliasCount(); ++i) {
+ offset = dst_msg.Set(offset, MessageBuffer::MapAliasDescriptor());
+ }
+
+ // Process any raw data.
+ if (const auto raw_count = src_header.GetRawCount(); raw_count != 0) {
+ // Get the offset and size.
+ const size_t offset_words = offset * sizeof(u32);
+ const size_t raw_size = raw_count * sizeof(u32);
+
+ if (!dst_user && !src_user) {
+ // Fast case is TLS -> TLS, do raw memcpy if we can.
+ std::memcpy(dst_msg_ptr + offset, src_msg_ptr + offset, raw_size);
+ } else if (src_user) {
+ // Determine how much fast size we can copy.
+ const size_t max_fast_size = std::min<size_t>(offset_words + raw_size, PageSize);
+ const size_t fast_size = max_fast_size - offset_words;
+
+ // Determine dst state; if user buffer, we require heap, and otherwise only linear
+ // mapped (to enable tls use).
+ const auto dst_state =
+ dst_user ? KMemoryState::FlagReferenceCounted : KMemoryState::FlagLinearMapped;
+
+ // Determine the dst permission. User buffer should be unmapped + read, TLS should
+ // be user readable.
+ const KMemoryPermission dst_perm =
+ dst_user ? KMemoryPermission::NotMapped | KMemoryPermission::KernelReadWrite
+ : KMemoryPermission::UserReadWrite;
+
+ // Perform the fast part of the copy.
+ R_TRY(dst_page_table.CopyMemoryFromKernelToLinear(
+ dst_message_buffer + offset_words, fast_size, dst_state, dst_state, dst_perm,
+ KMemoryAttribute::Uncached, KMemoryAttribute::None, src_msg_ptr + offset));
+
+ // If the fast part of the copy didn't get everything, perform the slow part of the
+ // copy.
+ if (fast_size < raw_size) {
+ R_TRY(dst_page_table.CopyMemoryFromHeapToHeap(
+ dst_page_table, dst_message_buffer + max_fast_size, raw_size - fast_size,
+ dst_state, dst_state, dst_perm, KMemoryAttribute::Uncached,
+ KMemoryAttribute::None, src_message_buffer + max_fast_size,
+ KMemoryState::FlagReferenceCounted, KMemoryState::FlagReferenceCounted,
+ KMemoryPermission::NotMapped | KMemoryPermission::KernelRead,
+ KMemoryAttribute::Uncached | KMemoryAttribute::Locked,
+ KMemoryAttribute::Locked));
+ }
+ } else /* if (dst_user) */ {
+ // The destination is a user buffer, so it should be unmapped + readable.
+ constexpr KMemoryPermission DestinationPermission =
+ KMemoryPermission::NotMapped | KMemoryPermission::KernelReadWrite;
+
+ // Copy the memory.
+ R_TRY(dst_page_table.CopyMemoryFromUserToLinear(
+ dst_message_buffer + offset_words, raw_size, KMemoryState::FlagReferenceCounted,
+ KMemoryState::FlagReferenceCounted, DestinationPermission,
+ KMemoryAttribute::Uncached, KMemoryAttribute::None,
+ src_message_buffer + offset_words));
+ }
+ }
+ }
+
+ // Perform (and validate) any remaining cleanup.
+ R_RETURN(CleanupMap(request, std::addressof(src_process), std::addressof(dst_page_table)));
}
-Result KServerSession::OnRequest(KSessionRequest* request) {
- // Create the wait queue.
- ThreadQueueImplForKServerSessionRequest wait_queue{m_kernel};
+void ReplyAsyncError(KProcess* to_process, uint64_t to_msg_buf, size_t to_msg_buf_size,
+ Result result) {
+ // Convert the address to a linear pointer.
+ u32* to_msg = to_process->GetMemory().GetPointer<u32>(to_msg_buf);
+
+ // Set the error.
+ MessageBuffer msg(to_msg, to_msg_buf_size);
+ msg.SetAsyncResult(result);
+}
+
+} // namespace
+
+KServerSession::KServerSession(KernelCore& kernel)
+ : KSynchronizationObject{kernel}, m_lock{m_kernel} {}
+
+KServerSession::~KServerSession() = default;
+
+void KServerSession::Destroy() {
+ m_parent->OnServerClosed();
+
+ this->CleanupRequests();
+
+ m_parent->Close();
+}
+
+Result KServerSession::ReceiveRequest(uintptr_t server_message, uintptr_t server_buffer_size,
+ KPhysicalAddress server_message_paddr,
+ std::shared_ptr<Service::HLERequestContext>* out_context,
+ std::weak_ptr<Service::SessionRequestManager> manager) {
+ // Lock the session.
+ KScopedLightLock lk{m_lock};
+
+ // Get the request and client thread.
+ KSessionRequest* request;
+ KThread* client_thread;
{
- // Lock the scheduler.
KScopedSchedulerLock sl{m_kernel};
- // Ensure that we can handle new requests.
- R_UNLESS(!m_parent->IsServerClosed(), ResultSessionClosed);
+ // Ensure that we can service the request.
+ R_UNLESS(!m_parent->IsClientClosed(), ResultSessionClosed);
- // Check that we're not terminating.
- R_UNLESS(!GetCurrentThread(m_kernel).IsTerminationRequested(), ResultTerminationRequested);
+ // Ensure we aren't already servicing a request.
+ R_UNLESS(m_current_request == nullptr, ResultNotFound);
- // Get whether we're empty.
- const bool was_empty = m_request_list.empty();
+ // Ensure we have a request to service.
+ R_UNLESS(!m_request_list.empty(), ResultNotFound);
- // Add the request to the list.
- request->Open();
- m_request_list.push_back(*request);
+ // Pop the first request from the list.
+ request = std::addressof(m_request_list.front());
+ m_request_list.pop_front();
- // If we were empty, signal.
- if (was_empty) {
- this->NotifyAvailable();
+ // Get the thread for the request.
+ client_thread = request->GetThread();
+ R_UNLESS(client_thread != nullptr, ResultSessionClosed);
+
+ // Open the client thread.
+ client_thread->Open();
+ }
+
+ SCOPE_EXIT({ client_thread->Close(); });
+
+ // Set the request as our current.
+ m_current_request = request;
+
+ // Get the client address.
+ uint64_t client_message = request->GetAddress();
+ size_t client_buffer_size = request->GetSize();
+ bool recv_list_broken = false;
+
+ // Receive the message.
+ Result result = ResultSuccess;
+
+ if (out_context != nullptr) {
+ // HLE request.
+ if (!client_message) {
+ client_message = GetInteger(client_thread->GetTlsAddress());
}
+ Core::Memory::Memory& memory{client_thread->GetOwnerProcess()->GetMemory()};
+ u32* cmd_buf{reinterpret_cast<u32*>(memory.GetPointer(client_message))};
+ *out_context =
+ std::make_shared<Service::HLERequestContext>(m_kernel, memory, this, client_thread);
+ (*out_context)->SetSessionRequestManager(manager);
+ (*out_context)
+ ->PopulateFromIncomingCommandBuffer(*client_thread->GetOwnerProcess(), cmd_buf);
+ // We succeeded.
+ R_SUCCEED();
+ } else {
+ result = ReceiveMessage(m_kernel, recv_list_broken, server_message, server_buffer_size,
+ server_message_paddr, *client_thread, client_message,
+ client_buffer_size, this, request);
+ }
- // If we have a request event, this is asynchronous, and we don't need to wait.
- R_SUCCEED_IF(request->GetEvent() != nullptr);
+ // Handle cleanup on receive failure.
+ if (R_FAILED(result)) {
+ // Cache the result to return it to the client.
+ const Result result_for_client = result;
- // This is a synchronous request, so we should wait for our request to complete.
- GetCurrentThread(m_kernel).SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::IPC);
- GetCurrentThread(m_kernel).BeginWait(std::addressof(wait_queue));
+ // Clear the current request.
+ {
+ KScopedSchedulerLock sl(m_kernel);
+ ASSERT(m_current_request == request);
+ m_current_request = nullptr;
+ if (!m_request_list.empty()) {
+ this->NotifyAvailable();
+ }
+ }
+
+ // Reply to the client.
+ {
+ // After we reply, close our reference to the request.
+ SCOPE_EXIT({ request->Close(); });
+
+ // Get the event to check whether the request is async.
+ if (KEvent* event = request->GetEvent(); event != nullptr) {
+ // The client sent an async request.
+ KProcess* client = client_thread->GetOwnerProcess();
+ auto& client_pt = client->GetPageTable();
+
+ // Send the async result.
+ if (R_FAILED(result_for_client)) {
+ ReplyAsyncError(client, client_message, client_buffer_size, result_for_client);
+ }
+
+ // Unlock the client buffer.
+ // NOTE: Nintendo does not check the result of this.
+ client_pt.UnlockForIpcUserBuffer(client_message, client_buffer_size);
+
+ // Signal the event.
+ event->Signal();
+ } else {
+ // End the client thread's wait.
+ KScopedSchedulerLock sl(m_kernel);
+
+ if (!client_thread->IsTerminationRequested()) {
+ client_thread->EndWait(result_for_client);
+ }
+ }
+ }
+
+ // Set the server result.
+ if (recv_list_broken) {
+ result = ResultReceiveListBroken;
+ } else {
+ result = ResultNotFound;
+ }
}
- return GetCurrentThread(m_kernel).GetWaitResult();
+ R_RETURN(result);
}
-Result KServerSession::SendReply(bool is_hle) {
+Result KServerSession::SendReply(uintptr_t server_message, uintptr_t server_buffer_size,
+ KPhysicalAddress server_message_paddr, bool is_hle) {
// Lock the session.
KScopedLightLock lk{m_lock};
@@ -327,7 +1240,7 @@ Result KServerSession::SendReply(bool is_hle) {
SCOPE_EXIT({ request->Close(); });
// Extract relevant information from the request.
- const uintptr_t client_message = request->GetAddress();
+ const uint64_t client_message = request->GetAddress();
const size_t client_buffer_size = request->GetSize();
KThread* client_thread = request->GetThread();
KEvent* event = request->GetEvent();
@@ -342,31 +1255,28 @@ Result KServerSession::SendReply(bool is_hle) {
// HLE servers write directly to a pointer to the thread command buffer. Therefore
// the reply has already been written in this case.
} else {
- Core::Memory::Memory& memory{client_thread->GetOwnerProcess()->GetMemory()};
- KThread* server_thread = GetCurrentThreadPointer(m_kernel);
- KProcess& src_process = *client_thread->GetOwnerProcess();
- KProcess& dst_process = *server_thread->GetOwnerProcess();
- UNIMPLEMENTED_IF(server_thread->GetOwnerProcess() != client_thread->GetOwnerProcess());
-
- auto* src_msg_buffer = memory.GetPointer<u32>(server_thread->GetTlsAddress());
- auto* dst_msg_buffer = memory.GetPointer<u32>(client_message);
- std::memcpy(dst_msg_buffer, src_msg_buffer, client_buffer_size);
-
- // Translate special header ad-hoc.
- MessageBuffer src_msg(src_msg_buffer, client_buffer_size);
- MessageBuffer::MessageHeader src_header(src_msg);
- MessageBuffer::SpecialHeader src_special_header(src_msg, src_header);
- if (src_header.GetHasSpecialHeader()) {
- MessageBuffer dst_msg(dst_msg_buffer, client_buffer_size);
- result = ProcessMessageSpecialData<true>(dst_process, src_process, *server_thread,
- dst_msg, src_msg, src_special_header);
- if (R_FAILED(result)) {
- CleanupSpecialData(dst_process, dst_msg_buffer, client_buffer_size);
- }
- }
+ result = SendMessage(m_kernel, server_message, server_buffer_size, server_message_paddr,
+ *client_thread, client_message, client_buffer_size, this, request);
+ }
+ } else if (!is_hle) {
+ // Otherwise, we'll need to do some cleanup.
+ KProcess* server_process = request->GetServerProcess();
+ KProcess* client_process =
+ (client_thread != nullptr) ? client_thread->GetOwnerProcess() : nullptr;
+ KProcessPageTable* client_page_table =
+ (client_process != nullptr) ? std::addressof(client_process->GetPageTable()) : nullptr;
+
+ // Cleanup server handles.
+ result = CleanupServerHandles(m_kernel, server_message, server_buffer_size,
+ server_message_paddr);
+
+ // Cleanup mappings.
+ Result cleanup_map_result = CleanupMap(request, server_process, client_page_table);
+
+ // If we successfully cleaned up handles, use the map cleanup result as our result.
+ if (R_SUCCEEDED(result)) {
+ result = cleanup_map_result;
}
- } else {
- result = ResultSessionClosed;
}
// Select a result for the client.
@@ -381,19 +1291,18 @@ Result KServerSession::SendReply(bool is_hle) {
// If there's a client thread, update it.
if (client_thread != nullptr) {
if (event != nullptr) {
- // // Get the client process/page table.
- // KProcess *client_process = client_thread->GetOwnerProcess();
- // KProcessPageTable *client_page_table = std::addressof(client_process->PageTable());
+ // Get the client process/page table.
+ KProcess* client_process = client_thread->GetOwnerProcess();
+ KProcessPageTable* client_page_table = std::addressof(client_process->GetPageTable());
- // // If we need to, reply with an async error.
- // if (R_FAILED(client_result)) {
- // ReplyAsyncError(client_process, client_message, client_buffer_size,
- // client_result);
- // }
+ // If we need to, reply with an async error.
+ if (R_FAILED(client_result)) {
+ ReplyAsyncError(client_process, client_message, client_buffer_size, client_result);
+ }
- // // Unlock the client buffer.
- // // NOTE: Nintendo does not check the result of this.
- // client_page_table->UnlockForIpcUserBuffer(client_message, client_buffer_size);
+ // Unlock the client buffer.
+ // NOTE: Nintendo does not check the result of this.
+ client_page_table->UnlockForIpcUserBuffer(client_message, client_buffer_size);
// Signal the event.
event->Signal();
@@ -410,91 +1319,53 @@ Result KServerSession::SendReply(bool is_hle) {
R_RETURN(result);
}
-Result KServerSession::ReceiveRequest(std::shared_ptr<Service::HLERequestContext>* out_context,
- std::weak_ptr<Service::SessionRequestManager> manager) {
- // Lock the session.
- KScopedLightLock lk{m_lock};
-
- // Get the request and client thread.
- KSessionRequest* request;
- KThread* client_thread;
+Result KServerSession::OnRequest(KSessionRequest* request) {
+ // Create the wait queue.
+ ThreadQueueImplForKServerSessionRequest wait_queue{m_kernel};
{
+ // Lock the scheduler.
KScopedSchedulerLock sl{m_kernel};
- // Ensure that we can service the request.
- R_UNLESS(!m_parent->IsClientClosed(), ResultSessionClosed);
-
- // Ensure we aren't already servicing a request.
- R_UNLESS(m_current_request == nullptr, ResultNotFound);
+ // Ensure that we can handle new requests.
+ R_UNLESS(!m_parent->IsServerClosed(), ResultSessionClosed);
- // Ensure we have a request to service.
- R_UNLESS(!m_request_list.empty(), ResultNotFound);
+ // Check that we're not terminating.
+ R_UNLESS(!GetCurrentThread(m_kernel).IsTerminationRequested(), ResultTerminationRequested);
- // Pop the first request from the list.
- request = std::addressof(m_request_list.front());
- m_request_list.pop_front();
+ // Get whether we're empty.
+ const bool was_empty = m_request_list.empty();
- // Get the thread for the request.
- client_thread = request->GetThread();
- R_UNLESS(client_thread != nullptr, ResultSessionClosed);
+ // Add the request to the list.
+ request->Open();
+ m_request_list.push_back(*request);
- // Open the client thread.
- client_thread->Open();
- }
+ // If we were empty, signal.
+ if (was_empty) {
+ this->NotifyAvailable();
+ }
- SCOPE_EXIT({ client_thread->Close(); });
+ // If we have a request event, this is asynchronous, and we don't need to wait.
+ R_SUCCEED_IF(request->GetEvent() != nullptr);
- // Set the request as our current.
- m_current_request = request;
+ // This is a synchronous request, so we should wait for our request to complete.
+ GetCurrentThread(m_kernel).SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::IPC);
+ GetCurrentThread(m_kernel).BeginWait(std::addressof(wait_queue));
+ }
- // Get the client address.
- uintptr_t client_message = request->GetAddress();
- size_t client_buffer_size = request->GetSize();
- // bool recv_list_broken = false;
+ return GetCurrentThread(m_kernel).GetWaitResult();
+}
- if (!client_message) {
- client_message = GetInteger(client_thread->GetTlsAddress());
- client_buffer_size = MessageBufferSize;
- }
+bool KServerSession::IsSignaled() const {
+ ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(m_kernel));
- // Receive the message.
- Core::Memory::Memory& memory{client_thread->GetOwnerProcess()->GetMemory()};
- if (out_context != nullptr) {
- // HLE request.
- u32* cmd_buf{reinterpret_cast<u32*>(memory.GetPointer(client_message))};
- *out_context =
- std::make_shared<Service::HLERequestContext>(m_kernel, memory, this, client_thread);
- (*out_context)->SetSessionRequestManager(manager);
- (*out_context)
- ->PopulateFromIncomingCommandBuffer(*client_thread->GetOwnerProcess(), cmd_buf);
- } else {
- KThread* server_thread = GetCurrentThreadPointer(m_kernel);
- KProcess& src_process = *client_thread->GetOwnerProcess();
- KProcess& dst_process = *server_thread->GetOwnerProcess();
- UNIMPLEMENTED_IF(client_thread->GetOwnerProcess() != server_thread->GetOwnerProcess());
-
- auto* src_msg_buffer = memory.GetPointer<u32>(client_message);
- auto* dst_msg_buffer = memory.GetPointer<u32>(server_thread->GetTlsAddress());
- std::memcpy(dst_msg_buffer, src_msg_buffer, client_buffer_size);
-
- // Translate special header ad-hoc.
- // TODO: fix this mess
- MessageBuffer src_msg(src_msg_buffer, client_buffer_size);
- MessageBuffer::MessageHeader src_header(src_msg);
- MessageBuffer::SpecialHeader src_special_header(src_msg, src_header);
- if (src_header.GetHasSpecialHeader()) {
- MessageBuffer dst_msg(dst_msg_buffer, client_buffer_size);
- Result res = ProcessMessageSpecialData<false>(dst_process, src_process, *client_thread,
- dst_msg, src_msg, src_special_header);
- if (R_FAILED(res)) {
- CleanupSpecialData(dst_process, dst_msg_buffer, client_buffer_size);
- }
- }
+ // If the client is closed, we're always signaled.
+ if (m_parent->IsClientClosed()) {
+ return true;
}
- // We succeeded.
- R_SUCCEED();
+ // Otherwise, we're signaled if we have a request and aren't handling one.
+ return !m_request_list.empty() && m_current_request == nullptr;
}
void KServerSession::CleanupRequests() {
@@ -527,31 +1398,30 @@ void KServerSession::CleanupRequests() {
SCOPE_EXIT({ request->Close(); });
// Extract relevant information from the request.
- // const uintptr_t client_message = request->GetAddress();
- // const size_t client_buffer_size = request->GetSize();
+ const uint64_t client_message = request->GetAddress();
+ const size_t client_buffer_size = request->GetSize();
KThread* client_thread = request->GetThread();
KEvent* event = request->GetEvent();
- // KProcess *server_process = request->GetServerProcess();
- // KProcess *client_process = (client_thread != nullptr) ?
- // client_thread->GetOwnerProcess() : nullptr;
- // KProcessPageTable *client_page_table = (client_process != nullptr) ?
- // std::addressof(client_process->GetPageTable())
- // : nullptr;
+ KProcess* server_process = request->GetServerProcess();
+ KProcess* client_process =
+ (client_thread != nullptr) ? client_thread->GetOwnerProcess() : nullptr;
+ KProcessPageTable* client_page_table =
+ (client_process != nullptr) ? std::addressof(client_process->GetPageTable()) : nullptr;
// Cleanup the mappings.
- // Result result = CleanupMap(request, server_process, client_page_table);
+ Result result = CleanupMap(request, server_process, client_page_table);
// If there's a client thread, update it.
if (client_thread != nullptr) {
if (event != nullptr) {
- // // We need to reply async.
- // ReplyAsyncError(client_process, client_message, client_buffer_size,
- // (R_SUCCEEDED(result) ? ResultSessionClosed : result));
+ // We need to reply async.
+ ReplyAsyncError(client_process, client_message, client_buffer_size,
+ (R_SUCCEEDED(result) ? ResultSessionClosed : result));
- // // Unlock the client buffer.
+ // Unlock the client buffer.
// NOTE: Nintendo does not check the result of this.
- // client_page_table->UnlockForIpcUserBuffer(client_message, client_buffer_size);
+ client_page_table->UnlockForIpcUserBuffer(client_message, client_buffer_size);
// Signal the event.
event->Signal();
@@ -567,4 +1437,97 @@ void KServerSession::CleanupRequests() {
}
}
+void KServerSession::OnClientClosed() {
+ KScopedLightLock lk{m_lock};
+
+ // Handle any pending requests.
+ KSessionRequest* prev_request = nullptr;
+ while (true) {
+ // Declare variables for processing the request.
+ KSessionRequest* request = nullptr;
+ KEvent* event = nullptr;
+ KThread* thread = nullptr;
+ bool cur_request = false;
+ bool terminate = false;
+
+ // Get the next request.
+ {
+ KScopedSchedulerLock sl{m_kernel};
+
+ if (m_current_request != nullptr && m_current_request != prev_request) {
+ // Set the request, open a reference as we process it.
+ request = m_current_request;
+ request->Open();
+ cur_request = true;
+
+ // Get thread and event for the request.
+ thread = request->GetThread();
+ event = request->GetEvent();
+
+ // If the thread is terminating, handle that.
+ if (thread->IsTerminationRequested()) {
+ request->ClearThread();
+ request->ClearEvent();
+ terminate = true;
+ }
+
+ prev_request = request;
+ } else if (!m_request_list.empty()) {
+ // Pop the request from the front of the list.
+ request = std::addressof(m_request_list.front());
+ m_request_list.pop_front();
+
+ // Get thread and event for the request.
+ thread = request->GetThread();
+ event = request->GetEvent();
+ }
+ }
+
+ // If there are no requests, we're done.
+ if (request == nullptr) {
+ break;
+ }
+
+ // All requests must have threads.
+ ASSERT(thread != nullptr);
+
+ // Ensure that we close the request when done.
+ SCOPE_EXIT({ request->Close(); });
+
+ // If we're terminating, close a reference to the thread and event.
+ if (terminate) {
+ thread->Close();
+ if (event != nullptr) {
+ event->Close();
+ }
+ }
+
+ // If we need to, reply.
+ if (event != nullptr && !cur_request) {
+ // There must be no mappings.
+ ASSERT(request->GetSendCount() == 0);
+ ASSERT(request->GetReceiveCount() == 0);
+ ASSERT(request->GetExchangeCount() == 0);
+
+ // Get the process and page table.
+ KProcess* client_process = thread->GetOwnerProcess();
+ auto& client_pt = client_process->GetPageTable();
+
+ // Reply to the request.
+ ReplyAsyncError(client_process, request->GetAddress(), request->GetSize(),
+ ResultSessionClosed);
+
+ // Unlock the buffer.
+ // NOTE: Nintendo does not check the result of this.
+ client_pt.UnlockForIpcUserBuffer(request->GetAddress(), request->GetSize());
+
+ // Signal the event.
+ event->Signal();
+ }
+ }
+
+ // Notify.
+ this->NotifyAvailable(ResultSessionClosed);
+}
+
} // namespace Kernel
diff --git a/src/core/hle/kernel/k_server_session.h b/src/core/hle/kernel/k_server_session.h
index 403891919..2876c231b 100644
--- a/src/core/hle/kernel/k_server_session.h
+++ b/src/core/hle/kernel/k_server_session.h
@@ -49,14 +49,21 @@ public:
bool IsSignaled() const override;
void OnClientClosed();
- /// TODO: flesh these out to match the real kernel
Result OnRequest(KSessionRequest* request);
- Result SendReply(bool is_hle = false);
- Result ReceiveRequest(std::shared_ptr<Service::HLERequestContext>* out_context = nullptr,
+ Result SendReply(uintptr_t server_message, uintptr_t server_buffer_size,
+ KPhysicalAddress server_message_paddr, bool is_hle = false);
+ Result ReceiveRequest(uintptr_t server_message, uintptr_t server_buffer_size,
+ KPhysicalAddress server_message_paddr,
+ std::shared_ptr<Service::HLERequestContext>* out_context = nullptr,
std::weak_ptr<Service::SessionRequestManager> manager = {});
Result SendReplyHLE() {
- return SendReply(true);
+ R_RETURN(this->SendReply(0, 0, 0, true));
+ }
+
+ Result ReceiveRequestHLE(std::shared_ptr<Service::HLERequestContext>* out_context,
+ std::weak_ptr<Service::SessionRequestManager> manager) {
+ R_RETURN(this->ReceiveRequest(0, 0, 0, out_context, manager));
}
private:
diff --git a/src/core/hle/kernel/k_session.cpp b/src/core/hle/kernel/k_session.cpp
index 44d7a8f02..4a1f6027e 100644
--- a/src/core/hle/kernel/k_session.cpp
+++ b/src/core/hle/kernel/k_session.cpp
@@ -33,8 +33,7 @@ void KSession::Initialize(KClientPort* client_port, uintptr_t name) {
m_name = name;
// Set our owner process.
- //! FIXME: this is the wrong process!
- m_process = m_kernel.ApplicationProcess();
+ m_process = GetCurrentProcessPointer(m_kernel);
m_process->Open();
// Set our port.
diff --git a/src/core/hle/kernel/k_thread.cpp b/src/core/hle/kernel/k_thread.cpp
index 7d9a6e9cf..24394d222 100644
--- a/src/core/hle/kernel/k_thread.cpp
+++ b/src/core/hle/kernel/k_thread.cpp
@@ -1422,8 +1422,7 @@ s32 GetCurrentCoreId(KernelCore& kernel) {
}
Core::Memory::Memory& GetCurrentMemory(KernelCore& kernel) {
- // TODO: per-process memory
- return kernel.System().ApplicationMemory();
+ return GetCurrentProcess(kernel).GetMemory();
}
KScopedDisableDispatch::~KScopedDisableDispatch() {
diff --git a/src/core/hle/kernel/k_thread.h b/src/core/hle/kernel/k_thread.h
index e9925d231..f13e232b2 100644
--- a/src/core/hle/kernel/k_thread.h
+++ b/src/core/hle/kernel/k_thread.h
@@ -314,11 +314,7 @@ public:
m_current_core_id = core;
}
- KProcess* GetOwnerProcess() {
- return m_parent;
- }
-
- const KProcess* GetOwnerProcess() const {
+ KProcess* GetOwnerProcess() const {
return m_parent;
}
diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index e479dacde..c14d2d2f3 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -68,8 +68,6 @@ struct KernelCore::Impl {
global_object_list_container = std::make_unique<KAutoObjectWithListContainer>(kernel);
global_scheduler_context = std::make_unique<Kernel::GlobalSchedulerContext>(kernel);
- global_handle_table = std::make_unique<Kernel::KHandleTable>(kernel);
- global_handle_table->Initialize(KHandleTable::MaxTableSize);
is_phantom_mode_for_singlecore = false;
@@ -121,13 +119,8 @@ struct KernelCore::Impl {
next_user_process_id = KProcess::ProcessIdMin;
next_thread_id = 1;
- global_handle_table->Finalize();
- global_handle_table.reset();
-
preemption_event = nullptr;
- exclusive_monitor.reset();
-
// Cleanup persistent kernel objects
auto CleanupObject = [](KAutoObject* obj) {
if (obj) {
@@ -191,8 +184,6 @@ struct KernelCore::Impl {
}
void InitializePhysicalCores() {
- exclusive_monitor =
- Core::MakeExclusiveMonitor(system.ApplicationMemory(), Core::Hardware::NUM_CPU_CORES);
for (u32 i = 0; i < Core::Hardware::NUM_CPU_CORES; i++) {
const s32 core{static_cast<s32>(i)};
@@ -791,10 +782,6 @@ struct KernelCore::Impl {
std::shared_ptr<Core::Timing::EventType> preemption_event;
- // This is the kernel's handle table or supervisor handle table which
- // stores all the objects in place.
- std::unique_ptr<KHandleTable> global_handle_table;
-
std::unique_ptr<KAutoObjectWithListContainer> global_object_list_container;
std::unique_ptr<KObjectNameGlobalData> object_name_global_data;
@@ -805,7 +792,6 @@ struct KernelCore::Impl {
std::mutex server_lock;
std::vector<std::unique_ptr<Service::ServerManager>> server_managers;
- std::unique_ptr<Core::ExclusiveMonitor> exclusive_monitor;
std::array<std::unique_ptr<Kernel::PhysicalCore>, Core::Hardware::NUM_CPU_CORES> cores;
// Next host thead ID to use, 0-3 IDs represent core threads, >3 represent others
@@ -882,10 +868,6 @@ KResourceLimit* KernelCore::GetSystemResourceLimit() {
return impl->system_resource_limit;
}
-KScopedAutoObject<KThread> KernelCore::RetrieveThreadFromGlobalHandleTable(Handle handle) const {
- return impl->global_handle_table->GetObject<KThread>(handle);
-}
-
void KernelCore::AppendNewProcess(KProcess* process) {
impl->process_list.push_back(process);
}
@@ -959,14 +941,6 @@ Kernel::KHardwareTimer& KernelCore::HardwareTimer() {
return *impl->hardware_timer;
}
-Core::ExclusiveMonitor& KernelCore::GetExclusiveMonitor() {
- return *impl->exclusive_monitor;
-}
-
-const Core::ExclusiveMonitor& KernelCore::GetExclusiveMonitor() const {
- return *impl->exclusive_monitor;
-}
-
KAutoObjectWithListContainer& KernelCore::ObjectListContainer() {
return *impl->global_object_list_container;
}
@@ -1030,14 +1004,6 @@ u64 KernelCore::CreateNewUserProcessID() {
return impl->next_user_process_id++;
}
-KHandleTable& KernelCore::GlobalHandleTable() {
- return *impl->global_handle_table;
-}
-
-const KHandleTable& KernelCore::GlobalHandleTable() const {
- return *impl->global_handle_table;
-}
-
void KernelCore::RegisterCoreThread(std::size_t core_id) {
impl->RegisterCoreThread(core_id);
}
diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h
index 78c88902c..5d4102145 100644
--- a/src/core/hle/kernel/kernel.h
+++ b/src/core/hle/kernel/kernel.h
@@ -116,9 +116,6 @@ public:
/// Retrieves a shared pointer to the system resource limit instance.
KResourceLimit* GetSystemResourceLimit();
- /// Retrieves a shared pointer to a Thread instance within the thread wakeup handle table.
- KScopedAutoObject<KThread> RetrieveThreadFromGlobalHandleTable(Handle handle) const;
-
/// Adds the given shared pointer to an internal list of active processes.
void AppendNewProcess(KProcess* process);
@@ -170,10 +167,6 @@ public:
/// Stops execution of 'id' core, in order to reschedule a new thread.
void PrepareReschedule(std::size_t id);
- Core::ExclusiveMonitor& GetExclusiveMonitor();
-
- const Core::ExclusiveMonitor& GetExclusiveMonitor() const;
-
KAutoObjectWithListContainer& ObjectListContainer();
const KAutoObjectWithListContainer& ObjectListContainer() const;
diff --git a/src/core/hle/kernel/message_buffer.h b/src/core/hle/kernel/message_buffer.h
index 75b275310..d528a9bb3 100644
--- a/src/core/hle/kernel/message_buffer.h
+++ b/src/core/hle/kernel/message_buffer.h
@@ -18,13 +18,13 @@ public:
static constexpr inline u64 NullTag = 0;
public:
- enum class ReceiveListCountType : u32 {
- None = 0,
- ToMessageBuffer = 1,
- ToSingleBuffer = 2,
+ enum ReceiveListCountType : u32 {
+ ReceiveListCountType_None = 0,
+ ReceiveListCountType_ToMessageBuffer = 1,
+ ReceiveListCountType_ToSingleBuffer = 2,
- CountOffset = 2,
- CountMax = 13,
+ ReceiveListCountType_CountOffset = 2,
+ ReceiveListCountType_CountMax = 13,
};
private:
@@ -591,16 +591,16 @@ public:
// Add the size of the receive list.
const auto count = hdr.GetReceiveListCount();
switch (count) {
- case MessageHeader::ReceiveListCountType::None:
+ case MessageHeader::ReceiveListCountType_None:
break;
- case MessageHeader::ReceiveListCountType::ToMessageBuffer:
+ case MessageHeader::ReceiveListCountType_ToMessageBuffer:
break;
- case MessageHeader::ReceiveListCountType::ToSingleBuffer:
+ case MessageHeader::ReceiveListCountType_ToSingleBuffer:
msg_size += ReceiveListEntry::GetDataSize();
break;
default:
msg_size += (static_cast<s32>(count) -
- static_cast<s32>(MessageHeader::ReceiveListCountType::CountOffset)) *
+ static_cast<s32>(MessageHeader::ReceiveListCountType_CountOffset)) *
ReceiveListEntry::GetDataSize();
break;
}
diff --git a/src/core/hle/kernel/svc/svc_info.cpp b/src/core/hle/kernel/svc/svc_info.cpp
index ada998772..231e4d0e1 100644
--- a/src/core/hle/kernel/svc/svc_info.cpp
+++ b/src/core/hle/kernel/svc/svc_info.cpp
@@ -118,7 +118,6 @@ Result GetInfo(Core::System& system, u64* result, InfoType info_id_type, Handle
R_SUCCEED();
case InfoType::IsApplication:
- LOG_WARNING(Kernel_SVC, "(STUBBED) Assuming process is application");
*result = process->IsApplication();
R_SUCCEED();
diff --git a/src/core/hle/kernel/svc/svc_ipc.cpp b/src/core/hle/kernel/svc/svc_ipc.cpp
index 47a3e7bb0..85cc4f561 100644
--- a/src/core/hle/kernel/svc/svc_ipc.cpp
+++ b/src/core/hle/kernel/svc/svc_ipc.cpp
@@ -48,8 +48,7 @@ Result ReplyAndReceiveImpl(KernelCore& kernel, int32_t* out_index, uintptr_t mes
};
// Send the reply.
- R_TRY(session->SendReply());
- // R_TRY(session->SendReply(message, buffer_size, message_paddr));
+ R_TRY(session->SendReply(message, buffer_size, message_paddr));
}
// Receive a message.
@@ -85,8 +84,7 @@ Result ReplyAndReceiveImpl(KernelCore& kernel, int32_t* out_index, uintptr_t mes
if (R_SUCCEEDED(result)) {
KServerSession* session = objs[index]->DynamicCast<KServerSession*>();
if (session != nullptr) {
- // result = session->ReceiveRequest(message, buffer_size, message_paddr);
- result = session->ReceiveRequest();
+ result = session->ReceiveRequest(message, buffer_size, message_paddr);
if (ResultNotFound == result) {
continue;
}
diff --git a/src/core/hle/kernel/svc_results.h b/src/core/hle/kernel/svc_results.h
index e1ad78607..38e71d516 100644
--- a/src/core/hle/kernel/svc_results.h
+++ b/src/core/hle/kernel/svc_results.h
@@ -38,7 +38,9 @@ constexpr Result ResultInvalidState{ErrorModule::Kernel, 125};
constexpr Result ResultReservedUsed{ErrorModule::Kernel, 126};
constexpr Result ResultPortClosed{ErrorModule::Kernel, 131};
constexpr Result ResultLimitReached{ErrorModule::Kernel, 132};
+constexpr Result ResultReceiveListBroken{ErrorModule::Kernel, 258};
constexpr Result ResultOutOfAddressSpace{ErrorModule::Kernel, 259};
+constexpr Result ResultMessageTooLarge{ErrorModule::Kernel, 260};
constexpr Result ResultInvalidId{ErrorModule::Kernel, 519};
} // namespace Kernel