SVC

Id	Description
0x1	ControlMemory(Handle*, unsigned int Addr0, unsigned int Addr1, unsigned int Size, unsigned int MemoryType, unsigned int Permissions)
0x2	QueryMemory
0x3	ExitProcess()
0x4	GetProcessAffinityMask
0x5	SetProcessAffinityMask
0x6	GetProcessIdealProcessor(unsigned int *IdealProcessor, Handle KProcess)
0x7	SetProcessIdealProcessor(Handle KProcess, unsigned int IdealProcessor)
0x8	CreateThread
0x9	ExitThread()
0xA	SleepThread
0xB	GetThreadPriority
0xC	SetThreadPriority
0xD	GetThreadAffinityMask
0xE	SetThreadAffinityMask
0xF	GetThreadIdealProcessor
0x10	SetThreadIdealProcessor
0x11	GetCurrentProcessorNumber
0x12	Run
0x13	CreateMutex
0x14	ReleaseMutex
0x15	CreateSemaphore
0x16	ReleaseSemaphore
0x17	CreateEvent
0x18	SignalEvent
0x19	ClearEvent
0x1A	CreateTimer
0x1B	SetTimer
0x1C	CancelTimer
0x1D	ClearTimer
0x1E	CreateMemoryBlock
0x1F	MapMemoryBlock(Handle, unsigned int Addr, unsigned int Permissions, unsigned int Unk)
0x20	UnmapMemoryBlock
0x21	CreateAddressArbiter
0x22	ArbitrateAddress
0x23	CloseHandle(Handle)
0x24	WaitSynchronization1
0x25	WaitSynchronization2
0x26	SignalAndWait
0x27	DuplicateHandle
0x28	GetSystemTick
0x29	GetHandleInfo
0x2A	GetSystemInfo
0x2B	GetProcessInfo(unsigned long long *Output, Handle KProcess, unsigned int Type)
0x2C	GetThreadInfo
0x2D	ConnectToPort(Handle*, char *PortName)
0x2E	SendSyncRequest1 (Stubbed)
0x2F	SendSyncRequest2 (Stubbed)
0x30	SendSyncRequest3 (Stubbed)
0x31	SendSyncRequest4 (Stubbed)
0x32	SendSyncRequest
0x33	OpenProcess(Handle *KProcess, unsigned int ProcessId)
0x34	OpenThread
0x35	GetProcessId(unsigned int *ProcessId, Handle KProcess)
0x36	GetProcessIdOfThread
0x37	GetThreadId
0x38	GetResourceLimit(Handle*, Handle KProcess)
0x39	GetResourceLimitLimitValues
0x3A	GetResourceLimitCurrentValues
0x3B	GetThreadContext (Stubbed)
0x3C	Break(BreakReason)
0x3D	OutputDebugString(void const, int) (Does nothing on non-debug units)
0x3E	ControlPerformanceCounter(unsigned long long, int, unsigned int, unsigned long long)
0x47	CreatePort
0x48	CreateSessionToPort
0x49	CreateSession
0x4A	AcceptSession
0x4B	ReplyAndReceive1
0x4C	ReplyAndReceive2
0x4D	ReplyAndReceive3
0x4E	ReplyAndReceive4
0x4F	ReplyAndReceive
0x50	BindInterrupt(Interrupt, Handle, int, bool)
0x51	UnbindInterrupt(Interrupt, Handle)
0x52	InvalidateProcessDataCache(Handle, void*, unsigned int)
0x53	StoreProcessDataCache(Handle process, void const* addr, unsigned int size)
0x54	FlushProcessDataCache(Handle, void const*, unsigned int)
0x55	StartInterProcessDma(Handle* out, Handle dstProcess, void* dst, Handle srcProcess, const void* src, size_t size, const DmaConfig& config )
0x56	StopDma(Handle)
0x57	GetDmaState(DmaState*, Handle)
0x58	RestartDma(nn::Handle, void *, void const*, unsigned int, signed char)
0x60	DebugActiveProcess(Handle*, unsigned int ProcessID)
0x61	BreakDebugProcess(Handle)
0x62	TerminateDebugProcess(Handle)
0x63	GetProcessDebugEvent(DebugEventInfo*, Handle)
0x64	ContinueDebugEvent(Handle, unsigned int)
0x65	GetProcessList(int*, unsigned int*, int)
0x66	GetThreadList(int*, unsigned int*, int, Handle)
0x67	GetDebugThreadContext(ThreadContext*, Handle, unsigned int, unsigned int)
0x68	SetDebugThreadContext(Handle, unsigned int, ThreadContext const&, unsigned int)
0x69	QueryDebugProcessMemory(MemoryInfo*, PageInfo*, Handle, unsigned int)
0x6A	ReadProcessMemory(void*, Handle, unsigned int, unsigned int)
0x6B	WriteProcessMemory(Handle, void const*, unsigned int, unsigned int)
0x6C	SetHardwareBreakPoint(int, unsigned int, unsigned int)
0x6D	GetDebugThreadParam(long long *, int *, nn::Handle, unsigned int, nn::dmnt::DebugThreadParam) (Disabled on regular kernel)
0x70	(Handle KProcess, unsigned int Addr, unsigned int Unk, unsigned int Size, unsigned int Type, unsigned int Permissions)
0x71	MapProcessMemory(Handle KProcess, unsigned int StartAddr, unsigned int EndAddr)
0x72	UnmapProcessMemory(Handle KProcess, unsigned int StartAddr, unsigned int EndAddr)
0x73	?
0x74	Stubbed on regular kernel
0x75	?
0x76	TerminateProcess(Handle)
0x77	?
0x78	?
0x79	?
0x7A	DisableExecuteNever(unsigned int Addr, unsigned int size) (Stubbed for regular kernel)
0x7C	?
0x7D	GetMemoryInfo(MemInfo *info, unsigned int *out, Handle KProcess, unsigned int Addr)

Each process can only use SVCs which are enabled in the NCCH exheader for this process. The ARM11 kernel SVC handler checks whether the SVC is enabled in the syscall access control mask stored on the SVC-mode stack. When a process context switch is done, the syscall mask is loaded from the KProcess object and is written to the SVC-mode stack.

Calling svcBreak on retail will only terminate the process which called this SVC.

ControlMemory and MapMemoryBlock can be used to map memory pages, these two SVCs only support mapping execute-never R/W pages. The input permissions parameter for these SVCs must be <=3, where value zero is used when un-mapping memory. Bitmask 0xf00 for ControlMemory parameter MemoryType is the memory-type, when this is zero the memory-type is loaded from the kernel flags stored in the exheader ARM11 kernel descriptors, for the process using the SVC. The low 8-bits are the type: 1 is for un-mapping memory, 3 for mapping memory. Addr1 is not used for type1 and type3. Address 0x08000000 for ControlMemory is used for mapping the heap.

MapProcessMemory maps RW memory starting at address 0x00100000 in the specified KProcess, at the specified StartAddr in the current process. MapProcessMemory then maps 0x08000000 in the specified process, to StartAddr+0x7f00000 in the current process. UnmapProcessMemory unmaps the memory which was mapped by MapProcessMemory.

DebugActiveProcess is used to attach to a process for debugging. This SVC can only be used when the target process' ARM11 descriptors stored in the exheader have the kernel flag for "Enable debug" set. Otherwise when that flag is clear, the kernel flags for the process using this SVC must have the "Force debug" flag set.