Loader services

ldr:shel

This is "nn::ldr::detail::IShellInterface".

This service has IPC max_sessions 3.

Cmd	Name
0	#SetProgramArgument
1	#FlushArguments

SetProgramArgument

Takes a type-0x9 input buffer with launch arguments (as string), an u32 (size of arguments string), and an input ProgramId. No output.

[11.0.0+] Now takes a type-0x5 buffer instead of type-0x9. Now takes a total of 8-bytes of input, instead of 0x10-bytes total.

Loads a process for the specified title-id and passes along the supplied arguments. Loaded processes are kept in a queue waiting for PM to launch them. The maximum number of waiting processes in this list is 10.

FlushArguments

No input/output.

Clears the loaded processes waiting queue.

ldr:dmnt

This is "nn::ldr::detail::IDebugMonitorInterface".

This service has IPC max_sessions 2.

Cmd	Name
0	#SetProgramArgument2
1	#FlushArguments2
2	#GetProcessModuleInfo

SetProgramArgument2

Same as #SetProgramArgument.

FlushArguments2

Same as #FlushArguments.

GetProcessModuleInfo

Takes a type-0xA output buffer of #ModuleInfo and an input u64 ProcessId. Returns an output s32.

ldr:pm

This is "nn::ldr::detail::IProcessManagerInterface".

This service has IPC max_sessions 1.

Cmd	Name
0	#CreateProcess
1	#GetProgramInfo
2	#PinProgram
3	#UnpinProgram
4	[10.0.0+] #SetEnabledProgramVerification

CreateProcess

Takes an input #PinId, an input #CreateProcessFlag and an input ResourceLimit handle. Returns an output Process handle.

GetProgramInfo

Takes a type-0x1A output buffer containing a #ProgramInfo and a ProgramLocation. No output.

[20.0.0+] Now takes an additional input u16.

PinProgram

Takes a ProgramLocation. Returns an output #PinId.

UnpinProgram

Takes an input #PinId. No output.

SetEnabledProgramVerification

Takes an input bool. No output.

When the flag is zero, it will set ret=0 instead of ret={error} when verifying the fixed-key NPDM ACID signature fails. This also skips verifying the NCA Header signature using the ACID key. Note that if verifying the fixed-key ACID signature is successful, and verifying the ACID-key NCA header signature fails, it will throw an error and abort.

CreateProcessFlag

Value	Description
0	EnableDebug
1	DisableAslr

PinId

This is an u64.

ModuleInfo

Offset	Size	Description
0x0	0x20	ModuleId
0x20	0x8	Address
0x28	0x8	Size

ProgramInfo

Offset	Size	Description
0x0	0x1	MainThreadPriority
0x1	0x1	DefaultCpuId
0x2	0x2	Flags
0x4	0x4	MainThreadStackSize
0x8	0x8	ProgramId
0x10	0x4	AcidSacSize
0x14	0x4	AciSacSize
0x18	0x4	AcidFacSize
0x1C	0x4	AciFacSize
0x20	0x10	[19.0.0+] Reserved
[19.0.0+] 0x30 ([1.0.0-18.1.0] 0x20)	Variable	AcidSac
Variable	Variable	AciSac
Variable	Variable	AcidFac
Variable	Variable	AciFac