LowLevel/Luma3DS-3GX
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Stub svc 0x59

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This commit is contained in:
TuxSH 2017-02-08 23:18:08 +01:00
parent 014a0d86f1
commit 700d572732
3 changed files with 20 additions and 1 deletions
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9
source/firm.c
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@ -172,6 +172,13 @@ u32 patchNativeFirm(u32 firmVersion, FirmwareSource nandType, u32 emuHeader, boo
ret += reimplementSvcBackdoor(arm11Section1, arm11SvcTable, baseK11VA, &freeK11Space);
}
//11.3 FIRM patches
if(firmVersion >= (ISN3DS ? 0x2D : 0x5C))
{
//Stub svc 0x59
ret += stubSvcRestrictGpuDma(arm11Section1, arm11SvcTable, baseK11VA);
}
ret += implementSvcGetCFWInfo(arm11Section1, arm11SvcTable, baseK11VA, &freeK11Space, isSafeMode);
//Apply UNITINFO patches
@ -294,7 +301,7 @@ u32 patch1x2xNativeAndSafeFirm(u32 devMode)
ret = 0;
ret += ISN3DS ? patchFirmWrites(process9Offset, process9Size) : patchOldFirmWrites(process9Offset, process9Size);
ret += ISN3DS ? patchSignatureChecks(process9Offset, process9Size) : patchOldSignatureChecks(process9Offset, process9Size);
if(devMode != 0)

11
source/patches.c
View File

@ -283,6 +283,17 @@ u32 reimplementSvcBackdoor(u8 *pos, u32 *arm11SvcTable, u32 baseK11VA, u8 **free
return 0;
}
u32 stubSvcRestrictGpuDma(u8 *pos, u32 *arm11SvcTable, u32 baseK11VA)
{
if(arm11SvcTable[0x59] != 0)
{
u32 *off = (u32 *)(pos + arm11SvcTable[0x59] - baseK11VA);
off[1] = 0xE1A00000; //replace call to inner function by a NOP
}
return 0;
}
u32 implementSvcGetCFWInfo(u8 *pos, u32 *arm11SvcTable, u32 baseK11VA, u8 **freeK11Space, bool isSafeMode)
{
if(*(u32 *)(*freeK11Space + svcGetCFWInfo_bin_size - 4) != 0xFFFFFFFF) return 1;

1
source/patches.h
View File

@ -46,6 +46,7 @@ u32 patchZeroKeyNcchEncryptionCheck(u8 *pos, u32 size);
u32 patchNandNcchEncryptionCheck(u8 *pos, u32 size);
u32 patchCheckForDevCommonKey(u8 *pos, u32 size);
u32 reimplementSvcBackdoor(u8 *pos, u32 *arm11SvcTable, u32 baseK11VA, u8 **freeK11Space);
u32 stubSvcRestrictGpuDma(u8 *pos, u32 *arm11SvcTable, u32 baseK11VA);
u32 implementSvcGetCFWInfo(u8 *pos, u32 *arm11SvcTable, u32 baseK11VA, u8 **freeK11Space, bool isSafeMode);
u32 patchArm9ExceptionHandlersInstall(u8 *pos, u32 size);
u32 getInfoForArm11ExceptionHandlers(u8 *pos, u32 size, u32 *codeSetOffset);