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edits
Changes
→System calls
| 0x1 || svcSetupHeap || X1=size || W0=result, X1=outaddr
| 0x1 || svcSetupHeap || X1=size || W0=result, X1=outaddr
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| 0x2 || svcProtectMemory || X0=addr, X1=size, W2=prot || W0=result
| 0x2 || [[#svcProtectMemory]] || X0=addr, X1=size, W2=prot || W0=result
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| 0x3 || svcSetMemoryState || X0=addr, X1=size, W2=state0, W3=state1 || W0=result
| 0x3 || [[#svcSetMemoryState]] || X0=addr, X1=size, W2=state0, W3=state1 || W0=result
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| 0x4 || svcMirrorStack || X0=dstaddr, X1=srcaddr, X2=size || W0=result
| 0x4 || [[#svcMirrorStack]] || X0=dstaddr, X1=srcaddr, X2=size || W0=result
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| 0x5 || svcUnmirrorStack || X0=dstaddr, X1=srcaddr, X2=size || W0=result
| 0x5 || svcUnmirrorStack || X0=dstaddr, X1=srcaddr, X2=size || W0=result
| 0xA || svcExitThread || None ||
| 0xA || svcExitThread || None ||
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| 0xB || svcSleepThread || X0=nano ||
| 0xB || [[#svcSleepThread]] || X0=nano ||
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| 0xC || svcGetThreadPriority || W1=thread_handle || W0=result, W1=prio
| 0xC || svcGetThreadPriority || W1=thread_handle || W0=result, W1=prio
| 0x14 || svcUnmapMemoryBlock || W0=memblk_handle, X1=addr, X2=size || W0=result
| 0x14 || svcUnmapMemoryBlock || W0=memblk_handle, X1=addr, X2=size || W0=result
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| 0x15 || svcCreateMemoryMirror || X1=addr, X2=size, W3=perm || W0=result, W1=handle
| 0x15 || [[#svcCreateMemoryMirror]] || X1=addr, X2=size, W3=perm || W0=result, W1=handle
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| 0x16 || svcCloseHandle || W0=handle || W0=result
| 0x16 || svcCloseHandle || W0=handle || W0=result
| 0x17 || ? || ? || ?
| 0x17 || ? || ? || ?
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| 0x18 || svcWaitSynchronizationN || X1=handles_ptr, X2=num_handles. X3=timeout || W1=out
| 0x18 || [[#svcWaitSynchronizationN]] || X1=handles_ptr, X2=num_handles. X3=timeout || W1=out
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| 0x19 || ? || W0=handle? || ?
| 0x19 || ? || W0=handle? || ?
| 0x50 || svcCreateMemoryBlock || W1=size?, W2=perm0, W3=perm1 || W0=result, W1=handle
| 0x50 || svcCreateMemoryBlock || W1=size?, W2=perm0, W3=perm1 || W0=result, W1=handle
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| 0x51 || svcMapMemoryMirror || X0=mirror_handle, X1=addr, X2=size, W3=perm || W0=result
| 0x51 || [[#svcMapMemoryMirror]] || X0=mirror_handle, X1=addr, X2=size, W3=perm || W0=result
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| 0x52 || svcUnmapMemoryMirror || W0=mirror_handle, X1=addr, X2=size || W0=result
| 0x52 || [[#svcUnmapMemoryMirror]] || W0=mirror_handle, X1=addr, X2=size || W0=result
|}
|}
== svcProtectMemory ==
Bit2 of permission (exec) is not allowed.
Setting write-only is not allowed either (bit1).
== svcSetMemoryState ==
{| class=wikitable
! State0 || State1 || Action
|-
| 0 || 0 || Clear bit35 in [[#MemoryState]].
|-
| 8 || 0 || Clear bit35 in [[#MemoryState]].
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| 8 || 8 || Set bit35 in [[#MemoryState]].
|}
This might used for switching between cached and non-cached mappings.
== svcMirrorStack ==
Memory is only allowed to be mapped into a special region.
Code can get the range of this region from [[#svcGetHandleInfo]].
The source region gets reprotected to ---, and sets bit32 is set in [[#MemoryState]].
== svcSleepThread ==
Setting nano=0 means "yield thread".
== svcCreateMemoryMirror ==
This one reprotects the src block with perms you give it. It also sets bit32 into [[#MemoryState]].
Executable bit perm not allowed.
Closing the returned handle automatically causes the bit32 in [[#MemoryState]] to clear.
== svcWaitSynchronizationN ==
Works with num_handles <= 0x40, error on num_handles == 0.
Does not accept 0xFFFF8001 or 0xFFFF8000 as handles.
== svcMapMemoryMirror ==
The newly mapped pages will have [[#MemoryState]] type 0xE.
You must pass same size and permissions as given in svcCreateMemoryMirror, otherwise error.
== svcUnmapMemoryMirror ==
Size must match size given in map syscall, otherwise there's an invalid-size error.
== MemoryState ==
{| class=wikitable
! Lower 8 bits || Type || Meaning
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| 0x3 || Code static || .text and .rodata
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| 0x4 || Code || .data
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| 0x5 || Heap ||
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| 0x6 || Shared memory block ||
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| 0x8 || Module code static || .text and .rodata
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| 0x9 || Module code || .data
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| 0xB || Stack mirror ||
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| 0xC || Thread local storage ||
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| 0xE || Memory mirror ||
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| 0x10 || Reserved ||
|}
Bit32: is_mirrored
Bit35: is_uncached?