diff options
Diffstat (limited to 'src/core/hle/kernel/svc.cpp')
| -rw-r--r-- | src/core/hle/kernel/svc.cpp | 525 |
1 files changed, 387 insertions, 138 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 290670e78..5fac831ee 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -20,21 +20,22 @@ #include "core/hle/kernel/address_arbiter.h" #include "core/hle/kernel/client_port.h" #include "core/hle/kernel/client_session.h" -#include "core/hle/kernel/event.h" #include "core/hle/kernel/handle_table.h" #include "core/hle/kernel/kernel.h" #include "core/hle/kernel/mutex.h" #include "core/hle/kernel/process.h" +#include "core/hle/kernel/readable_event.h" #include "core/hle/kernel/resource_limit.h" #include "core/hle/kernel/scheduler.h" #include "core/hle/kernel/shared_memory.h" #include "core/hle/kernel/svc.h" #include "core/hle/kernel/svc_wrap.h" #include "core/hle/kernel/thread.h" +#include "core/hle/kernel/writable_event.h" #include "core/hle/lock.h" #include "core/hle/result.h" #include "core/hle/service/service.h" -#include "core/settings.h" +#include "core/memory.h" namespace Kernel { namespace { @@ -189,10 +190,16 @@ static ResultCode SetHeapSize(VAddr* heap_addr, u64 heap_size) { return ERR_INVALID_SIZE; } - auto& process = *Core::CurrentProcess(); - const VAddr heap_base = process.VMManager().GetHeapRegionBaseAddress(); - CASCADE_RESULT(*heap_addr, - process.HeapAllocate(heap_base, heap_size, VMAPermission::ReadWrite)); + auto& vm_manager = Core::CurrentProcess()->VMManager(); + const VAddr heap_base = vm_manager.GetHeapRegionBaseAddress(); + const auto alloc_result = + vm_manager.HeapAllocate(heap_base, heap_size, VMAPermission::ReadWrite); + + if (alloc_result.Failed()) { + return alloc_result.Code(); + } + + *heap_addr = *alloc_result; return RESULT_SUCCESS; } @@ -239,7 +246,7 @@ static ResultCode SetMemoryPermission(VAddr addr, u64 size, u32 prot) { } const VMManager::VMAHandle iter = vm_manager.FindVMA(addr); - if (iter == vm_manager.vma_map.end()) { + if (!vm_manager.IsValidHandle(iter)) { LOG_ERROR(Kernel_SVC, "Unable to find VMA for address=0x{:016X}", addr); return ERR_INVALID_ADDRESS_STATE; } @@ -253,11 +260,52 @@ static ResultCode SetMemoryPermission(VAddr addr, u64 size, u32 prot) { 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, - size, state0, state1); - return RESULT_SUCCESS; +static ResultCode SetMemoryAttribute(VAddr address, u64 size, u32 mask, u32 attribute) { + LOG_DEBUG(Kernel_SVC, + "called, address=0x{:016X}, size=0x{:X}, mask=0x{:08X}, attribute=0x{:08X}", address, + size, mask, attribute); + + if (!Common::Is4KBAligned(address)) { + LOG_ERROR(Kernel_SVC, "Address not page aligned (0x{:016X})", address); + return ERR_INVALID_ADDRESS; + } + + if (size == 0 || !Common::Is4KBAligned(size)) { + LOG_ERROR(Kernel_SVC, "Invalid size (0x{:X}). Size must be non-zero and page aligned.", + size); + return ERR_INVALID_ADDRESS; + } + + if (!IsValidAddressRange(address, size)) { + LOG_ERROR(Kernel_SVC, "Address range overflowed (Address: 0x{:016X}, Size: 0x{:016X})", + address, size); + return ERR_INVALID_ADDRESS_STATE; + } + + const auto mem_attribute = static_cast<MemoryAttribute>(attribute); + const auto mem_mask = static_cast<MemoryAttribute>(mask); + const auto attribute_with_mask = mem_attribute | mem_mask; + + if (attribute_with_mask != mem_mask) { + LOG_ERROR(Kernel_SVC, + "Memory attribute doesn't match the given mask (Attribute: 0x{:X}, Mask: {:X}", + attribute, mask); + return ERR_INVALID_COMBINATION; + } + + if ((attribute_with_mask | MemoryAttribute::Uncached) != MemoryAttribute::Uncached) { + LOG_ERROR(Kernel_SVC, "Specified attribute isn't equal to MemoryAttributeUncached (8)."); + return ERR_INVALID_COMBINATION; + } + + auto& vm_manager = Core::CurrentProcess()->VMManager(); + if (!IsInsideAddressSpace(vm_manager, address, size)) { + LOG_ERROR(Kernel_SVC, + "Given address (0x{:016X}) is outside the bounds of the address space.", address); + return ERR_INVALID_ADDRESS_STATE; + } + + return vm_manager.SetMemoryAttribute(address, size, mem_mask, mem_attribute); } /// Maps a memory range into a different range. @@ -265,15 +313,14 @@ static ResultCode MapMemory(VAddr dst_addr, VAddr src_addr, u64 size) { LOG_TRACE(Kernel_SVC, "called, dst_addr=0x{:X}, src_addr=0x{:X}, size=0x{:X}", dst_addr, src_addr, size); - auto* const current_process = Core::CurrentProcess(); - const auto& vm_manager = current_process->VMManager(); - + auto& vm_manager = Core::CurrentProcess()->VMManager(); const auto result = MapUnmapMemorySanityChecks(vm_manager, dst_addr, src_addr, size); - if (result != RESULT_SUCCESS) { + + if (result.IsError()) { return result; } - return current_process->MirrorMemory(dst_addr, src_addr, size); + return vm_manager.MirrorMemory(dst_addr, src_addr, size, MemoryState::Stack); } /// Unmaps a region that was previously mapped with svcMapMemory @@ -281,15 +328,14 @@ static ResultCode UnmapMemory(VAddr dst_addr, VAddr src_addr, u64 size) { LOG_TRACE(Kernel_SVC, "called, dst_addr=0x{:X}, src_addr=0x{:X}, size=0x{:X}", dst_addr, src_addr, size); - auto* const current_process = Core::CurrentProcess(); - const auto& vm_manager = current_process->VMManager(); - + auto& vm_manager = Core::CurrentProcess()->VMManager(); const auto result = MapUnmapMemorySanityChecks(vm_manager, dst_addr, src_addr, size); - if (result != RESULT_SUCCESS) { + + if (result.IsError()) { return result; } - return current_process->UnmapMemory(dst_addr, src_addr, size); + return vm_manager.UnmapRange(dst_addr, size); } /// Connect to an OS service given the port name, returns the handle to the port to out @@ -349,7 +395,7 @@ static ResultCode SendSyncRequest(Handle handle) { } /// Get the ID for the specified thread. -static ResultCode GetThreadId(u32* thread_id, Handle thread_handle) { +static ResultCode GetThreadId(u64* thread_id, Handle thread_handle) { LOG_TRACE(Kernel_SVC, "called thread=0x{:08X}", thread_handle); const auto& handle_table = Core::CurrentProcess()->GetHandleTable(); @@ -363,20 +409,33 @@ static ResultCode GetThreadId(u32* thread_id, Handle thread_handle) { return RESULT_SUCCESS; } -/// Get the ID of the specified process -static ResultCode GetProcessId(u32* process_id, Handle process_handle) { - LOG_TRACE(Kernel_SVC, "called process=0x{:08X}", process_handle); +/// Gets the ID of the specified process or a specified thread's owning process. +static ResultCode GetProcessId(u64* process_id, Handle handle) { + LOG_DEBUG(Kernel_SVC, "called handle=0x{:08X}", handle); const auto& handle_table = Core::CurrentProcess()->GetHandleTable(); - const SharedPtr<Process> process = handle_table.Get<Process>(process_handle); - if (!process) { - LOG_ERROR(Kernel_SVC, "Process handle does not exist, process_handle=0x{:08X}", - process_handle); - return ERR_INVALID_HANDLE; + const SharedPtr<Process> process = handle_table.Get<Process>(handle); + if (process) { + *process_id = process->GetProcessID(); + return RESULT_SUCCESS; } - *process_id = process->GetProcessID(); - return RESULT_SUCCESS; + const SharedPtr<Thread> thread = handle_table.Get<Thread>(handle); + if (thread) { + const Process* const owner_process = thread->GetOwnerProcess(); + if (!owner_process) { + LOG_ERROR(Kernel_SVC, "Non-existent owning process encountered."); + return ERR_INVALID_HANDLE; + } + + *process_id = owner_process->GetProcessID(); + return RESULT_SUCCESS; + } + + // NOTE: This should also handle debug objects before returning. + + LOG_ERROR(Kernel_SVC, "Handle does not exist, handle=0x{:08X}", handle); + return ERR_INVALID_HANDLE; } /// Default thread wakeup callback for WaitSynchronization @@ -665,7 +724,7 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id) TotalMemoryUsage = 6, TotalHeapUsage = 7, IsCurrentProcessBeingDebugged = 8, - ResourceHandleLimit = 9, + RegisterResourceLimit = 9, IdleTickCount = 10, RandomEntropy = 11, PerformanceCounter = 0xF0000002, @@ -685,37 +744,137 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id) ThreadTickCount = 0xF0000002, }; - const auto* current_process = Core::CurrentProcess(); - const auto& vm_manager = current_process->VMManager(); + const auto info_id_type = static_cast<GetInfoType>(info_id); - switch (static_cast<GetInfoType>(info_id)) { + switch (info_id_type) { case GetInfoType::AllowedCpuIdBitmask: - *result = current_process->GetAllowedProcessorMask(); - break; case GetInfoType::AllowedThreadPrioBitmask: - *result = current_process->GetAllowedThreadPriorityMask(); - break; case GetInfoType::MapRegionBaseAddr: - *result = vm_manager.GetMapRegionBaseAddress(); - break; case GetInfoType::MapRegionSize: - *result = vm_manager.GetMapRegionSize(); - break; case GetInfoType::HeapRegionBaseAddr: - *result = vm_manager.GetHeapRegionBaseAddress(); - break; case GetInfoType::HeapRegionSize: - *result = vm_manager.GetHeapRegionSize(); - break; + case GetInfoType::ASLRRegionBaseAddr: + case GetInfoType::ASLRRegionSize: + case GetInfoType::NewMapRegionBaseAddr: + case GetInfoType::NewMapRegionSize: case GetInfoType::TotalMemoryUsage: - *result = vm_manager.GetTotalMemoryUsage(); - break; case GetInfoType::TotalHeapUsage: - *result = vm_manager.GetTotalHeapUsage(); - break; + case GetInfoType::IsVirtualAddressMemoryEnabled: + case GetInfoType::PersonalMmHeapUsage: + case GetInfoType::TitleId: + case GetInfoType::UserExceptionContextAddr: { + if (info_sub_id != 0) { + return ERR_INVALID_ENUM_VALUE; + } + + const auto& current_process_handle_table = Core::CurrentProcess()->GetHandleTable(); + const auto process = current_process_handle_table.Get<Process>(static_cast<Handle>(handle)); + if (!process) { + return ERR_INVALID_HANDLE; + } + + switch (info_id_type) { + case GetInfoType::AllowedCpuIdBitmask: + *result = process->GetAllowedProcessorMask(); + return RESULT_SUCCESS; + + case GetInfoType::AllowedThreadPrioBitmask: + *result = process->GetAllowedThreadPriorityMask(); + return RESULT_SUCCESS; + + case GetInfoType::MapRegionBaseAddr: + *result = process->VMManager().GetMapRegionBaseAddress(); + return RESULT_SUCCESS; + + case GetInfoType::MapRegionSize: + *result = process->VMManager().GetMapRegionSize(); + return RESULT_SUCCESS; + + case GetInfoType::HeapRegionBaseAddr: + *result = process->VMManager().GetHeapRegionBaseAddress(); + return RESULT_SUCCESS; + + case GetInfoType::HeapRegionSize: + *result = process->VMManager().GetHeapRegionSize(); + return RESULT_SUCCESS; + + case GetInfoType::ASLRRegionBaseAddr: + *result = process->VMManager().GetASLRRegionBaseAddress(); + return RESULT_SUCCESS; + + case GetInfoType::ASLRRegionSize: + *result = process->VMManager().GetASLRRegionSize(); + return RESULT_SUCCESS; + + case GetInfoType::NewMapRegionBaseAddr: + *result = process->VMManager().GetNewMapRegionBaseAddress(); + return RESULT_SUCCESS; + + case GetInfoType::NewMapRegionSize: + *result = process->VMManager().GetNewMapRegionSize(); + return RESULT_SUCCESS; + + case GetInfoType::TotalMemoryUsage: + *result = process->VMManager().GetTotalMemoryUsage(); + return RESULT_SUCCESS; + + case GetInfoType::TotalHeapUsage: + *result = process->VMManager().GetTotalHeapUsage(); + return RESULT_SUCCESS; + + case GetInfoType::IsVirtualAddressMemoryEnabled: + *result = process->IsVirtualMemoryEnabled(); + return RESULT_SUCCESS; + + case GetInfoType::TitleId: + *result = process->GetTitleID(); + return RESULT_SUCCESS; + + case GetInfoType::UserExceptionContextAddr: + LOG_WARNING(Kernel_SVC, + "(STUBBED) Attempted to query user exception context address, returned 0"); + *result = 0; + return RESULT_SUCCESS; + + default: + break; + } + + LOG_WARNING(Kernel_SVC, "(STUBBED) Unimplemented svcGetInfo id=0x{:016X}", info_id); + return ERR_INVALID_ENUM_VALUE; + } + case GetInfoType::IsCurrentProcessBeingDebugged: *result = 0; - break; + return RESULT_SUCCESS; + + case GetInfoType::RegisterResourceLimit: { + if (handle != 0) { + return ERR_INVALID_HANDLE; + } + + if (info_sub_id != 0) { + return ERR_INVALID_COMBINATION; + } + + Process* const current_process = Core::CurrentProcess(); + HandleTable& handle_table = current_process->GetHandleTable(); + const auto resource_limit = current_process->GetResourceLimit(); + if (!resource_limit) { + *result = KernelHandle::InvalidHandle; + // Yes, the kernel considers this a successful operation. + return RESULT_SUCCESS; + } + + const auto table_result = handle_table.Create(resource_limit); + if (table_result.Failed()) { + return table_result.Code(); + } + + *result = *table_result; + return RESULT_SUCCESS; + } + case GetInfoType::RandomEntropy: if (handle != 0) { LOG_ERROR(Kernel_SVC, "Process Handle is non zero, expected 0 result but got {:016X}", @@ -729,37 +888,15 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id) return ERR_INVALID_COMBINATION; } - *result = current_process->GetRandomEntropy(info_sub_id); + *result = Core::CurrentProcess()->GetRandomEntropy(info_sub_id); return RESULT_SUCCESS; - break; - case GetInfoType::ASLRRegionBaseAddr: - *result = vm_manager.GetASLRRegionBaseAddress(); - break; - case GetInfoType::ASLRRegionSize: - *result = vm_manager.GetASLRRegionSize(); - break; - case GetInfoType::NewMapRegionBaseAddr: - *result = vm_manager.GetNewMapRegionBaseAddress(); - break; - case GetInfoType::NewMapRegionSize: - *result = vm_manager.GetNewMapRegionSize(); - break; - case GetInfoType::IsVirtualAddressMemoryEnabled: - *result = current_process->IsVirtualMemoryEnabled(); - break; - case GetInfoType::TitleId: - *result = current_process->GetTitleID(); - break; + case GetInfoType::PrivilegedProcessId: LOG_WARNING(Kernel_SVC, "(STUBBED) Attempted to query privileged process id bounds, returned 0"); *result = 0; - break; - case GetInfoType::UserExceptionContextAddr: - LOG_WARNING(Kernel_SVC, - "(STUBBED) Attempted to query user exception context address, returned 0"); - *result = 0; - break; + return RESULT_SUCCESS; + case GetInfoType::ThreadTickCount: { constexpr u64 num_cpus = 4; if (info_sub_id != 0xFFFFFFFFFFFFFFFF && info_sub_id >= num_cpus) { @@ -769,7 +906,7 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id) } const auto thread = - current_process->GetHandleTable().Get<Thread>(static_cast<Handle>(handle)); + Core::CurrentProcess()->GetHandleTable().Get<Thread>(static_cast<Handle>(handle)); if (!thread) { LOG_ERROR(Kernel_SVC, "Thread handle does not exist, handle=0x{:08X}", static_cast<Handle>(handle)); @@ -792,19 +929,45 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id) } *result = out_ticks; - break; + return RESULT_SUCCESS; } + default: LOG_WARNING(Kernel_SVC, "(STUBBED) Unimplemented svcGetInfo id=0x{:016X}", info_id); return ERR_INVALID_ENUM_VALUE; } - - return RESULT_SUCCESS; } /// Sets the thread activity -static ResultCode SetThreadActivity(Handle handle, u32 unknown) { - LOG_WARNING(Kernel_SVC, "(STUBBED) called, handle=0x{:08X}, unknown=0x{:08X}", handle, unknown); +static ResultCode SetThreadActivity(Handle handle, u32 activity) { + LOG_DEBUG(Kernel_SVC, "called, handle=0x{:08X}, activity=0x{:08X}", handle, activity); + if (activity > static_cast<u32>(ThreadActivity::Paused)) { + return ERR_INVALID_ENUM_VALUE; + } + + const auto* current_process = Core::CurrentProcess(); + const SharedPtr<Thread> thread = current_process->GetHandleTable().Get<Thread>(handle); + if (!thread) { + LOG_ERROR(Kernel_SVC, "Thread handle does not exist, handle=0x{:08X}", handle); + return ERR_INVALID_HANDLE; + } + + if (thread->GetOwnerProcess() != current_process) { + LOG_ERROR(Kernel_SVC, + "The current process does not own the current thread, thread_handle={:08X} " + "thread_pid={}, " + "current_process_pid={}", + handle, thread->GetOwnerProcess()->GetProcessID(), + current_process->GetProcessID()); + return ERR_INVALID_HANDLE; + } + + if (thread == GetCurrentThread()) { + LOG_ERROR(Kernel_SVC, "The thread handle specified is the current running thread"); + return ERR_BUSY; + } + + thread->SetActivity(static_cast<ThreadActivity>(activity)); return RESULT_SUCCESS; } @@ -831,7 +994,7 @@ static ResultCode GetThreadContext(VAddr thread_context, Handle handle) { if (thread == GetCurrentThread()) { LOG_ERROR(Kernel_SVC, "The thread handle specified is the current running thread"); - return ERR_ALREADY_REGISTERED; + return ERR_BUSY; } Core::ARM_Interface::ThreadContext ctx = thread->GetContext(); @@ -992,10 +1155,9 @@ static ResultCode UnmapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 return shared_memory->Unmap(*current_process, addr); } -/// Query process memory -static ResultCode QueryProcessMemory(MemoryInfo* memory_info, PageInfo* /*page_info*/, - Handle process_handle, u64 addr) { - LOG_TRACE(Kernel_SVC, "called process=0x{:08X} addr={:X}", process_handle, addr); +static ResultCode QueryProcessMemory(VAddr memory_info_address, VAddr page_info_address, + Handle process_handle, VAddr address) { + LOG_TRACE(Kernel_SVC, "called process=0x{:08X} address={:X}", process_handle, address); const auto& handle_table = Core::CurrentProcess()->GetHandleTable(); SharedPtr<Process> process = handle_table.Get<Process>(process_handle); if (!process) { @@ -1003,26 +1165,34 @@ static ResultCode QueryProcessMemory(MemoryInfo* memory_info, PageInfo* /*page_i process_handle); return ERR_INVALID_HANDLE; } - auto vma = process->VMManager().FindVMA(addr); - memory_info->attributes = 0; - if (vma == process->VMManager().vma_map.end()) { - memory_info->base_address = 0; - memory_info->permission = static_cast<u32>(VMAPermission::None); - memory_info->size = 0; - memory_info->type = static_cast<u32>(MemoryState::Unmapped); - } else { - memory_info->base_address = vma->second.base; - memory_info->permission = static_cast<u32>(vma->second.permissions); - memory_info->size = vma->second.size; - memory_info->type = static_cast<u32>(vma->second.meminfo_state); - } + + const auto& vm_manager = process->VMManager(); + const MemoryInfo memory_info = vm_manager.QueryMemory(address); + + Memory::Write64(memory_info_address, memory_info.base_address); + Memory::Write64(memory_info_address + 8, memory_info.size); + Memory::Write32(memory_info_address + 16, memory_info.state); + Memory::Write32(memory_info_address + 20, memory_info.attributes); + Memory::Write32(memory_info_address + 24, memory_info.permission); + Memory::Write32(memory_info_address + 32, memory_info.ipc_ref_count); + Memory::Write32(memory_info_address + 28, memory_info.device_ref_count); + Memory::Write32(memory_info_address + 36, 0); + + // Page info appears to be currently unused by the kernel and is always set to zero. + Memory::Write32(page_info_address, 0); + return RESULT_SUCCESS; } -/// Query memory -static ResultCode QueryMemory(MemoryInfo* memory_info, PageInfo* page_info, VAddr addr) { - LOG_TRACE(Kernel_SVC, "called, addr={:X}", addr); - return QueryProcessMemory(memory_info, page_info, CurrentProcess, addr); +static ResultCode QueryMemory(VAddr memory_info_address, VAddr page_info_address, + VAddr query_address) { + LOG_TRACE(Kernel_SVC, + "called, memory_info_address=0x{:016X}, page_info_address=0x{:016X}, " + "query_address=0x{:016X}", + memory_info_address, page_info_address, query_address); + + return QueryProcessMemory(memory_info_address, page_info_address, CurrentProcess, + query_address); } /// Exits the current process @@ -1045,7 +1215,7 @@ static void ExitProcess() { static ResultCode CreateThread(Handle* out_handle, VAddr entry_point, u64 arg, VAddr stack_top, u32 priority, s32 processor_id) { LOG_TRACE(Kernel_SVC, - "called entrypoint=0x{:08X} ({}), arg=0x{:08X}, stacktop=0x{:08X}, " + "called entrypoint=0x{:08X}, arg=0x{:08X}, stacktop=0x{:08X}, " "threadpriority=0x{:08X}, processorid=0x{:08X} : created handle=0x{:08X}", entry_point, arg, stack_top, priority, processor_id, *out_handle); @@ -1109,7 +1279,10 @@ static ResultCode StartThread(Handle thread_handle) { ASSERT(thread->GetStatus() == ThreadStatus::Dormant); thread->ResumeFromWait(); - Core::System::GetInstance().CpuCore(thread->GetProcessorID()).PrepareReschedule(); + + if (thread->GetStatus() == ThreadStatus::Ready) { + Core::System::GetInstance().CpuCore(thread->GetProcessorID()).PrepareReschedule(); + } return RESULT_SUCCESS; } @@ -1126,18 +1299,38 @@ static void ExitThread() { static void SleepThread(s64 nanoseconds) { LOG_TRACE(Kernel_SVC, "called nanoseconds={}", nanoseconds); - // Don't attempt to yield execution if there are no available threads to run, - // this way we avoid a useless reschedule to the idle thread. - if (nanoseconds == 0 && !Core::System::GetInstance().CurrentScheduler().HaveReadyThreads()) - return; + enum class SleepType : s64 { + YieldWithoutLoadBalancing = 0, + YieldWithLoadBalancing = -1, + YieldAndWaitForLoadBalancing = -2, + }; - // Sleep current thread and check for next thread to schedule - WaitCurrentThread_Sleep(); + if (nanoseconds <= 0) { + auto& scheduler{Core::System::GetInstance().CurrentScheduler()}; + switch (static_cast<SleepType>(nanoseconds)) { + case SleepType::YieldWithoutLoadBalancing: + scheduler.YieldWithoutLoadBalancing(GetCurrentThread()); + break; + case SleepType::YieldWithLoadBalancing: + scheduler.YieldWithLoadBalancing(GetCurrentThread()); + break; + case SleepType::YieldAndWaitForLoadBalancing: + scheduler.YieldAndWaitForLoadBalancing(GetCurrentThread()); + break; + default: + UNREACHABLE_MSG("Unimplemented sleep yield type '{:016X}'!", nanoseconds); + } + } else { + // Sleep current thread and check for next thread to schedule + WaitCurrentThread_Sleep(); - // Create an event to wake the thread up after the specified nanosecond delay has passed - GetCurrentThread()->WakeAfterDelay(nanoseconds); + // Create an event to wake the thread up after the specified nanosecond delay has passed + GetCurrentThread()->WakeAfterDelay(nanoseconds); + } - Core::System::GetInstance().PrepareReschedule(); + // Reschedule all CPU cores + for (std::size_t i = 0; i < Core::NUM_CPU_CORES; ++i) + Core::System::GetInstance().CpuCore(i).PrepareReschedule(); } /// Wait process wide key atomic @@ -1359,17 +1552,24 @@ static ResultCode CloseHandle(Handle handle) { return handle_table.Close(handle); } -/// Reset an event +/// Clears the signaled state of an event or process. static ResultCode ResetSignal(Handle handle) { LOG_DEBUG(Kernel_SVC, "called handle 0x{:08X}", handle); const auto& handle_table = Core::CurrentProcess()->GetHandleTable(); - auto event = handle_table.Get<Event>(handle); - ASSERT(event != nullptr); + auto event = handle_table.Get<ReadableEvent>(handle); + if (event) { + return event->Reset(); + } + + auto process = handle_table.Get<Process>(handle); + if (process) { + return process->ClearSignalState(); + } - event->Clear(); - return RESULT_SUCCESS; + LOG_ERROR(Kernel_SVC, "Invalid handle (0x{:08X})", handle); + return ERR_INVALID_HANDLE; } /// Creates a TransferMemory object @@ -1402,9 +1602,9 @@ static ResultCode CreateTransferMemory(Handle* handle, VAddr addr, u64 size, u32 } auto& kernel = Core::System::GetInstance().Kernel(); - auto& handle_table = Core::CurrentProcess()->GetHandleTable(); - const auto shared_mem_handle = SharedMemory::Create( - kernel, handle_table.Get<Process>(CurrentProcess), size, perms, perms, addr); + auto process = kernel.CurrentProcess(); + auto& handle_table = process->GetHandleTable(); + const auto shared_mem_handle = SharedMemory::Create(kernel, process, size, perms, perms, addr); CASCADE_RESULT(*handle, handle_table.Create(shared_mem_handle)); return RESULT_SUCCESS; @@ -1514,26 +1714,75 @@ static ResultCode CreateSharedMemory(Handle* handle, u64 size, u32 local_permiss } auto& kernel = Core::System::GetInstance().Kernel(); - auto& handle_table = Core::CurrentProcess()->GetHandleTable(); - auto shared_mem_handle = - SharedMemory::Create(kernel, handle_table.Get<Process>(KernelHandle::CurrentProcess), size, - local_perms, remote_perms); + auto process = kernel.CurrentProcess(); + auto& handle_table = process->GetHandleTable(); + auto shared_mem_handle = SharedMemory::Create(kernel, process, size, local_perms, remote_perms); CASCADE_RESULT(*handle, handle_table.Create(shared_mem_handle)); return RESULT_SUCCESS; } +static ResultCode CreateEvent(Handle* write_handle, Handle* read_handle) { + LOG_DEBUG(Kernel_SVC, "called"); + + auto& kernel = Core::System::GetInstance().Kernel(); + const auto [readable_event, writable_event] = + WritableEvent::CreateEventPair(kernel, ResetType::Sticky, "CreateEvent"); + + HandleTable& handle_table = kernel.CurrentProcess()->GetHandleTable(); + + const auto write_create_result = handle_table.Create(writable_event); + if (write_create_result.Failed()) { + return write_create_result.Code(); + } + *write_handle = *write_create_result; + + const auto read_create_result = handle_table.Create(readable_event); + if (read_create_result.Failed()) { + handle_table.Close(*write_create_result); + return read_create_result.Code(); + } + *read_handle = *read_create_result; + + LOG_DEBUG(Kernel_SVC, + "successful. Writable event handle=0x{:08X}, Readable event handle=0x{:08X}", + *write_create_result, *read_create_result); + return RESULT_SUCCESS; +} + static ResultCode ClearEvent(Handle handle) { LOG_TRACE(Kernel_SVC, "called, event=0x{:08X}", handle); const auto& handle_table = Core::CurrentProcess()->GetHandleTable(); - SharedPtr<Event> evt = handle_table.Get<Event>(handle); - if (evt == nullptr) { - LOG_ERROR(Kernel_SVC, "Event handle does not exist, handle=0x{:08X}", handle); + + auto writable_event = handle_table.Get<WritableEvent>(handle); + if (writable_event) { + writable_event->Clear(); + return RESULT_SUCCESS; + } + + auto readable_event = handle_table.Get<ReadableEvent>(handle); + if (readable_event) { + readable_event->Clear(); + return RESULT_SUCCESS; + } + + LOG_ERROR(Kernel_SVC, "Event handle does not exist, handle=0x{:08X}", handle); + return ERR_INVALID_HANDLE; +} + +static ResultCode SignalEvent(Handle handle) { + LOG_DEBUG(Kernel_SVC, "called. Handle=0x{:08X}", handle); + + HandleTable& handle_table = Core::CurrentProcess()->GetHandleTable(); + auto writable_event = handle_table.Get<WritableEvent>(handle); + + if (!writable_event) { + LOG_ERROR(Kernel_SVC, "Non-existent writable event handle used (0x{:08X})", handle); return ERR_INVALID_HANDLE; } - evt->Clear(); + writable_event->Signal(); return RESULT_SUCCESS; } @@ -1672,7 +1921,7 @@ static const FunctionDef SVC_Table[] = { {0x0E, SvcWrap<GetThreadCoreMask>, "GetThreadCoreMask"}, {0x0F, SvcWrap<SetThreadCoreMask>, "SetThreadCoreMask"}, {0x10, SvcWrap<GetCurrentProcessorNumber>, "GetCurrentProcessorNumber"}, - {0x11, nullptr, "SignalEvent"}, + {0x11, SvcWrap<SignalEvent>, "SignalEvent"}, {0x12, SvcWrap<ClearEvent>, "ClearEvent"}, {0x13, SvcWrap<MapSharedMemory>, "MapSharedMemory"}, {0x14, SvcWrap<UnmapSharedMemory>, "UnmapSharedMemory"}, @@ -1724,7 +1973,7 @@ static const FunctionDef SVC_Table[] = { {0x42, nullptr, "ReplyAndReceiveLight"}, {0x43, nullptr, "ReplyAndReceive"}, {0x44, nullptr, "ReplyAndReceiveWithUserBuffer"}, - {0x45, nullptr, "CreateEvent"}, + {0x45, SvcWrap<CreateEvent>, "CreateEvent"}, {0x46, nullptr, "Unknown"}, {0x47, nullptr, "Unknown"}, {0x48, nullptr, "MapPhysicalMemoryUnsafe"}, @@ -1773,7 +2022,7 @@ static const FunctionDef SVC_Table[] = { {0x73, nullptr, "SetProcessMemoryPermission"}, {0x74, nullptr, "MapProcessMemory"}, {0x75, nullptr, "UnmapProcessMemory"}, - {0x76, nullptr, "QueryProcessMemory"}, + {0x76, SvcWrap<QueryProcessMemory>, "QueryProcessMemory"}, {0x77, nullptr, "MapProcessCodeMemory"}, {0x78, nullptr, "UnmapProcessCodeMemory"}, {0x79, nullptr, "CreateProcess"}, |