diff options
Diffstat (limited to 'src/core/hle/kernel/svc.cpp')
| -rw-r--r-- | src/core/hle/kernel/svc.cpp | 232 |
1 files changed, 210 insertions, 22 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 67ea67666..75dbfc31d 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -34,6 +34,7 @@ #include "core/hle/lock.h" #include "core/hle/result.h" #include "core/hle/service/service.h" +#include "core/settings.h" namespace Kernel { namespace { @@ -122,6 +123,48 @@ static ResultCode SetHeapSize(VAddr* heap_addr, u64 heap_size) { return RESULT_SUCCESS; } +static ResultCode SetMemoryPermission(VAddr addr, u64 size, u32 prot) { + LOG_TRACE(Kernel_SVC, "called, addr=0x{:X}, size=0x{:X}, prot=0x{:X}", addr, size, prot); + + if (!Common::Is4KBAligned(addr)) { + return ERR_INVALID_ADDRESS; + } + + if (size == 0 || !Common::Is4KBAligned(size)) { + return ERR_INVALID_SIZE; + } + + if (!IsValidAddressRange(addr, size)) { + return ERR_INVALID_ADDRESS_STATE; + } + + const auto permission = static_cast<MemoryPermission>(prot); + if (permission != MemoryPermission::None && permission != MemoryPermission::Read && + permission != MemoryPermission::ReadWrite) { + return ERR_INVALID_MEMORY_PERMISSIONS; + } + + auto* const current_process = Core::CurrentProcess(); + auto& vm_manager = current_process->VMManager(); + + if (!IsInsideAddressSpace(vm_manager, addr, size)) { + return ERR_INVALID_ADDRESS_STATE; + } + + const VMManager::VMAHandle iter = vm_manager.FindVMA(addr); + if (iter == vm_manager.vma_map.end()) { + return ERR_INVALID_ADDRESS_STATE; + } + + LOG_WARNING(Kernel_SVC, "Uniformity check on protected memory is not implemented."); + // TODO: Performs a uniformity check to make sure only protected memory is changed (it doesn't + // make sense to allow changing permissions on kernel memory itself, etc). + + const auto converted_permissions = SharedMemory::ConvertPermissions(permission); + + return vm_manager.ReprotectRange(addr, size, converted_permissions); +} + static ResultCode SetMemoryAttribute(VAddr addr, u64 size, u32 state0, u32 state1) { LOG_WARNING(Kernel_SVC, "(STUBBED) called, addr=0x{:X}, size=0x{:X}, state0=0x{:X}, state1=0x{:X}", addr, @@ -171,7 +214,7 @@ static ResultCode ConnectToNamedPort(Handle* out_handle, VAddr port_name_address // Read 1 char beyond the max allowed port name to detect names that are too long. std::string port_name = Memory::ReadCString(port_name_address, PortNameMaxLength + 1); if (port_name.size() > PortNameMaxLength) { - return ERR_PORT_NAME_TOO_LONG; + return ERR_OUT_OF_RANGE; } LOG_TRACE(Kernel_SVC, "called port_name={}", port_name); @@ -267,8 +310,9 @@ static ResultCode WaitSynchronization(Handle* index, VAddr handles_address, u64 static constexpr u64 MaxHandles = 0x40; - if (handle_count > MaxHandles) - return ResultCode(ErrorModule::Kernel, ErrCodes::TooLarge); + if (handle_count > MaxHandles) { + return ERR_OUT_OF_RANGE; + } auto* const thread = GetCurrentThread(); @@ -333,8 +377,7 @@ static ResultCode CancelSynchronization(Handle thread_handle) { } ASSERT(thread->GetStatus() == ThreadStatus::WaitSynchAny); - thread->SetWaitSynchronizationResult( - ResultCode(ErrorModule::Kernel, ErrCodes::SynchronizationCanceled)); + thread->SetWaitSynchronizationResult(ERR_SYNCHRONIZATION_CANCELED); thread->ResumeFromWait(); return RESULT_SUCCESS; } @@ -375,9 +418,19 @@ static ResultCode ArbitrateUnlock(VAddr mutex_addr) { return Mutex::Release(mutex_addr); } +enum class BreakType : u32 { + Panic = 0, + AssertionFailed = 1, + PreNROLoad = 3, + PostNROLoad = 4, + PreNROUnload = 5, + PostNROUnload = 6, +}; + struct BreakReason { union { u32 raw; + BitField<0, 30, BreakType> break_type; BitField<31, 1, u32> signal_debugger; }; }; @@ -385,16 +438,80 @@ struct BreakReason { /// Break program execution static void Break(u32 reason, u64 info1, u64 info2) { BreakReason break_reason{reason}; - if (break_reason.signal_debugger) { - LOG_ERROR( + bool has_dumped_buffer{}; + + const auto handle_debug_buffer = [&](VAddr addr, u64 sz) { + if (sz == 0 || addr == 0 || has_dumped_buffer) { + return; + } + + // This typically is an error code so we're going to assume this is the case + if (sz == sizeof(u32)) { + LOG_CRITICAL(Debug_Emulated, "debug_buffer_err_code={:X}", Memory::Read32(addr)); + } else { + // We don't know what's in here so we'll hexdump it + std::vector<u8> debug_buffer(sz); + Memory::ReadBlock(addr, debug_buffer.data(), sz); + std::string hexdump; + for (std::size_t i = 0; i < debug_buffer.size(); i++) { + hexdump += fmt::format("{:02X} ", debug_buffer[i]); + if (i != 0 && i % 16 == 0) { + hexdump += '\n'; + } + } + LOG_CRITICAL(Debug_Emulated, "debug_buffer=\n{}", hexdump); + } + has_dumped_buffer = true; + }; + switch (break_reason.break_type) { + case BreakType::Panic: + LOG_CRITICAL(Debug_Emulated, "Signalling debugger, PANIC! info1=0x{:016X}, info2=0x{:016X}", + info1, info2); + handle_debug_buffer(info1, info2); + break; + case BreakType::AssertionFailed: + LOG_CRITICAL(Debug_Emulated, + "Signalling debugger, Assertion failed! info1=0x{:016X}, info2=0x{:016X}", + info1, info2); + handle_debug_buffer(info1, info2); + break; + case BreakType::PreNROLoad: + LOG_WARNING( Debug_Emulated, - "Emulated program broke execution! reason=0x{:016X}, info1=0x{:016X}, info2=0x{:016X}", - reason, info1, info2); - } else { + "Signalling debugger, Attempting to load an NRO at 0x{:016X} with size 0x{:016X}", + info1, info2); + break; + case BreakType::PostNROLoad: + LOG_WARNING(Debug_Emulated, + "Signalling debugger, Loaded an NRO at 0x{:016X} with size 0x{:016X}", info1, + info2); + break; + case BreakType::PreNROUnload: + LOG_WARNING( + Debug_Emulated, + "Signalling debugger, Attempting to unload an NRO at 0x{:016X} with size 0x{:016X}", + info1, info2); + break; + case BreakType::PostNROUnload: + LOG_WARNING(Debug_Emulated, + "Signalling debugger, Unloaded an NRO at 0x{:016X} with size 0x{:016X}", info1, + info2); + break; + default: + LOG_WARNING( + Debug_Emulated, + "Signalling debugger, Unknown break reason {}, info1=0x{:016X}, info2=0x{:016X}", + static_cast<u32>(break_reason.break_type.Value()), info1, info2); + handle_debug_buffer(info1, info2); + break; + } + + if (!break_reason.signal_debugger) { LOG_CRITICAL( Debug_Emulated, "Emulated program broke execution! reason=0x{:016X}, info1=0x{:016X}, info2=0x{:016X}", reason, info1, info2); + handle_debug_buffer(info1, info2); ASSERT(false); Core::CurrentProcess()->PrepareForTermination(); @@ -421,6 +538,37 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id) LOG_TRACE(Kernel_SVC, "called info_id=0x{:X}, info_sub_id=0x{:X}, handle=0x{:08X}", info_id, info_sub_id, handle); + enum class GetInfoType : u64 { + // 1.0.0+ + AllowedCpuIdBitmask = 0, + AllowedThreadPrioBitmask = 1, + MapRegionBaseAddr = 2, + MapRegionSize = 3, + HeapRegionBaseAddr = 4, + HeapRegionSize = 5, + TotalMemoryUsage = 6, + TotalHeapUsage = 7, + IsCurrentProcessBeingDebugged = 8, + ResourceHandleLimit = 9, + IdleTickCount = 10, + RandomEntropy = 11, + PerformanceCounter = 0xF0000002, + // 2.0.0+ + ASLRRegionBaseAddr = 12, + ASLRRegionSize = 13, + NewMapRegionBaseAddr = 14, + NewMapRegionSize = 15, + // 3.0.0+ + IsVirtualAddressMemoryEnabled = 16, + PersonalMmHeapUsage = 17, + TitleId = 18, + // 4.0.0+ + PrivilegedProcessId = 19, + // 5.0.0+ + UserExceptionContextAddr = 20, + ThreadTickCount = 0xF0000002, + }; + const auto* current_process = Core::CurrentProcess(); const auto& vm_manager = current_process->VMManager(); @@ -453,7 +601,16 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id) *result = 0; break; case GetInfoType::RandomEntropy: - *result = 0; + if (handle != 0) { + return ERR_INVALID_HANDLE; + } + + if (info_sub_id >= Process::RANDOM_ENTROPY_SIZE) { + return ERR_INVALID_COMBINATION; + } + + *result = current_process->GetRandomEntropy(info_sub_id); + return RESULT_SUCCESS; break; case GetInfoType::ASLRRegionBaseAddr: *result = vm_manager.GetASLRRegionBaseAddress(); @@ -483,6 +640,36 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id) "(STUBBED) Attempted to query user exception context address, returned 0"); *result = 0; break; + case GetInfoType::ThreadTickCount: { + constexpr u64 num_cpus = 4; + if (info_sub_id != 0xFFFFFFFFFFFFFFFF && info_sub_id >= num_cpus) { + return ERR_INVALID_COMBINATION; + } + + const auto thread = + current_process->GetHandleTable().Get<Thread>(static_cast<Handle>(handle)); + if (!thread) { + return ERR_INVALID_HANDLE; + } + + const auto& system = Core::System::GetInstance(); + const auto& scheduler = system.CurrentScheduler(); + const auto* const current_thread = scheduler.GetCurrentThread(); + const bool same_thread = current_thread == thread; + + const u64 prev_ctx_ticks = scheduler.GetLastContextSwitchTicks(); + u64 out_ticks = 0; + if (same_thread && info_sub_id == 0xFFFFFFFFFFFFFFFF) { + const u64 thread_ticks = current_thread->GetTotalCPUTimeTicks(); + + out_ticks = thread_ticks + (CoreTiming::GetTicks() - prev_ctx_ticks); + } else if (same_thread && info_sub_id == system.CurrentCoreIndex()) { + out_ticks = CoreTiming::GetTicks() - prev_ctx_ticks; + } + + *result = out_ticks; + break; + } default: UNIMPLEMENTED(); } @@ -548,16 +735,17 @@ static ResultCode SetThreadPriority(Handle handle, u32 priority) { } const auto* const current_process = Core::CurrentProcess(); - SharedPtr<Thread> thread = current_process->GetHandleTable().Get<Thread>(handle); - if (!thread) { - return ERR_INVALID_HANDLE; - } // Note: The kernel uses the current process's resource limit instead of // the one from the thread owner's resource limit. const ResourceLimit& resource_limit = current_process->GetResourceLimit(); if (resource_limit.GetMaxResourceValue(ResourceType::Priority) > priority) { - return ERR_NOT_AUTHORIZED; + return ERR_INVALID_THREAD_PRIORITY; + } + + SharedPtr<Thread> thread = current_process->GetHandleTable().Get<Thread>(handle); + if (!thread) { + return ERR_INVALID_HANDLE; } thread->SetPriority(priority); @@ -699,7 +887,7 @@ static ResultCode CreateThread(Handle* out_handle, VAddr entry_point, u64 arg, V auto* const current_process = Core::CurrentProcess(); const ResourceLimit& resource_limit = current_process->GetResourceLimit(); if (resource_limit.GetMaxResourceValue(ResourceType::Priority) > priority) { - return ERR_NOT_AUTHORIZED; + return ERR_INVALID_THREAD_PRIORITY; } if (processor_id == THREADPROCESSORID_DEFAULT) { @@ -993,7 +1181,7 @@ static ResultCode CloseHandle(Handle handle) { /// Reset an event static ResultCode ResetSignal(Handle handle) { - LOG_WARNING(Kernel_SVC, "(STUBBED) called handle 0x{:08X}", handle); + LOG_DEBUG(Kernel_SVC, "called handle 0x{:08X}", handle); const auto& handle_table = Core::CurrentProcess()->GetHandleTable(); auto event = handle_table.Get<Event>(handle); @@ -1048,7 +1236,7 @@ static ResultCode SetThreadCoreMask(Handle thread_handle, u32 core, u64 mask) { } if (mask == 0) { - return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidCombination); + return ERR_INVALID_COMBINATION; } /// This value is used to only change the affinity mask without changing the current ideal core. @@ -1057,12 +1245,12 @@ static ResultCode SetThreadCoreMask(Handle thread_handle, u32 core, u64 mask) { if (core == OnlyChangeMask) { core = thread->GetIdealCore(); } else if (core >= Core::NUM_CPU_CORES && core != static_cast<u32>(-1)) { - return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidProcessorId); + return ERR_INVALID_PROCESSOR_ID; } // Error out if the input core isn't enabled in the input mask. if (core < Core::NUM_CPU_CORES && (mask & (1ull << core)) == 0) { - return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidCombination); + return ERR_INVALID_COMBINATION; } thread->ChangeCore(core, mask); @@ -1151,7 +1339,7 @@ struct FunctionDef { static const FunctionDef SVC_Table[] = { {0x00, nullptr, "Unknown"}, {0x01, SvcWrap<SetHeapSize>, "SetHeapSize"}, - {0x02, nullptr, "SetMemoryPermission"}, + {0x02, SvcWrap<SetMemoryPermission>, "SetMemoryPermission"}, {0x03, SvcWrap<SetMemoryAttribute>, "SetMemoryAttribute"}, {0x04, SvcWrap<MapMemory>, "MapMemory"}, {0x05, SvcWrap<UnmapMemory>, "UnmapMemory"}, |