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2,057 bytes added ,  20:24, 5 April 2017
Line 5: Line 5:  
|  0x1 || svcSetupHeap || X1=size || W0=result, X1=outaddr
 
|  0x1 || svcSetupHeap || X1=size || W0=result, X1=outaddr
 
|-
 
|-
|  0x2 || svcProtectMemory || X0=addr, X1=size, W2=prot || W0=result
+
|  0x2 || [[#svcProtectMemory]] || X0=addr, X1=size, W2=prot || W0=result
 
|-
 
|-
|  0x3 || svcSetMemoryState || X0=addr, X1=size, W2=state0, W3=state1 || W0=result
+
|  0x3 || [[#svcSetMemoryState]] || X0=addr, X1=size, W2=state0, W3=state1 || W0=result
 
|-
 
|-
|  0x4 || svcMirrorStack || X0=dstaddr, X1=srcaddr, X2=size || W0=result
+
|  0x4 || [[#svcMirrorStack]] || X0=dstaddr, X1=srcaddr, X2=size || W0=result
 
|-
 
|-
 
|  0x5 || svcUnmirrorStack || X0=dstaddr, X1=srcaddr, X2=size || W0=result
 
|  0x5 || svcUnmirrorStack || X0=dstaddr, X1=srcaddr, X2=size || W0=result
Line 23: Line 23:  
|  0xA || svcExitThread || None ||                                                         
 
|  0xA || svcExitThread || None ||                                                         
 
|-
 
|-
|  0xB || svcSleepThread || X0=nano ||
+
|  0xB || [[#svcSleepThread]] || X0=nano ||
 
|-
 
|-
 
|  0xC || svcGetThreadPriority || W1=thread_handle || W0=result, W1=prio
 
|  0xC || svcGetThreadPriority || W1=thread_handle || W0=result, W1=prio
Line 43: Line 43:  
| 0x14 || svcUnmapMemoryBlock || W0=memblk_handle, X1=addr, X2=size || W0=result                                                 
 
| 0x14 || svcUnmapMemoryBlock || W0=memblk_handle, X1=addr, X2=size || W0=result                                                 
 
|-
 
|-
| 0x15 || svcCreateMemoryMirror || X1=addr, X2=size, W3=perm || W0=result, W1=handle
+
| 0x15 || [[#svcCreateMemoryMirror]] || X1=addr, X2=size, W3=perm || W0=result, W1=handle
 
|-
 
|-
 
| 0x16 || svcCloseHandle || W0=handle || W0=result
 
| 0x16 || svcCloseHandle || W0=handle || W0=result
Line 49: Line 49:  
| 0x17 || ? || ? || ?
 
| 0x17 || ? || ? || ?
 
|-
 
|-
| 0x18 || svcWaitSynchronizationN || X1=handles_ptr, X2=num_handles. X3=timeout || W1=out
+
| 0x18 || [[#svcWaitSynchronizationN]] || X1=handles_ptr, X2=num_handles. X3=timeout || W1=out
 
|-
 
|-
 
| 0x19 || ? || W0=handle? || ?
 
| 0x19 || ? || W0=handle? || ?
Line 99: Line 99:  
| 0x50 || svcCreateMemoryBlock || W1=size?, W2=perm0, W3=perm1 || W0=result, W1=handle
 
| 0x50 || svcCreateMemoryBlock || W1=size?, W2=perm0, W3=perm1 || W0=result, W1=handle
 
|-
 
|-
| 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
 
|-
 
|-
| 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
 +
|-
 +
| 0x3          || Code static          || .text and .rodata
 +
|-
 +
| 0x4          || Code                || .data
 +
|-
 +
| 0x5          || Heap                ||
 +
|-
 +
| 0x6          || Shared memory block  ||
 +
|-
 +
| 0x8          || Module code static  || .text and .rodata
 +
|-
 +
| 0x9          || Module code          || .data
 +
|-
 +
| 0xB          || Stack mirror        ||
 +
|-
 +
| 0xC          || Thread local storage ||
 +
|-
 +
| 0xE          || Memory mirror        ||
 +
|-
 +
| 0x10        || Reserved            ||
 +
|}
 +
 +
Bit32: is_mirrored
 +
 +
Bit35: is_uncached?

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