LowLevel/Luma3DS-3GX
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Add option to run rosalina on N3DS SAFE_FIRM.

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Also enables a qtm error bypass
This commit is contained in:
TuxSH
2020-05-02 23:05:49 +01:00
parent 7dc2b7123b
commit 166bdbeb7d
6 changed files with 58 additions and 16 deletions
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15
arm9/source/config.c
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@@ -95,6 +95,7 @@ void configMenu(bool oldPinStatus, u32 oldPinMode)
"( ) Show GBA boot screen in patched AGB_FIRM",
"( ) Set developer UNITINFO",
"( ) Disable Arm11 exception handlers",
"( ) Enable Rosalina on SAFE_FIRM",
};
static const char *optionsDescription[] = { "Select the default EmuNAND.\n\n"
@@ -193,7 +194,16 @@ void configMenu(bool oldPinStatus, u32 oldPinMode)
"Note: Disabling the exception handlers\n"
"will disqualify you from submitting\n"
"issues or bug reports to the Luma3DS\n"
"GitHub repository!"
"GitHub repository!",
"Enables Rosalina, the kernel ext.\n"
"and sysmodule reimplementations on\n"
"SAFE_FIRM (New 3DS only).\n\n"
"Also suppresses QTM error 0xF96183FE,\n"
"allowing to use 8.1-11.3 N3DS on\n"
"New 2DS XL consoles.\n\n"
"Only select this if you know what you\n"
"are doing!",
};
FirmwareSource nandType = FIRMWARE_SYSNAND;
@@ -229,7 +239,8 @@ void configMenu(bool oldPinStatus, u32 oldPinMode)
{ .visible = true },
{ .visible = true },
{ .visible = true },
{ .visible = true }
{ .visible = true },
{ .visible = ISN3DS },
};
//Calculate the amount of the various kinds of options and pre-select the first single one

5
arm9/source/config.h
View File

@@ -34,7 +34,7 @@
#define CONFIG_FILE "config.bin"
#define CONFIG_VERSIONMAJOR 2
#define CONFIG_VERSIONMINOR 3
#define CONFIG_VERSIONMINOR 4
#define BOOTCFG_NAND BOOTCONFIG(0, 7)
#define BOOTCFG_FIRM BOOTCONFIG(3, 7)
@@ -60,7 +60,8 @@ enum singleOptions
PATCHVERSTRING,
SHOWGBABOOT,
PATCHUNITINFO,
DISABLEARM11EXCHANDLERS
DISABLEARM11EXCHANDLERS,
ENABLESAFEFIRMROSALINA,
};
typedef enum ConfigurationStatus

34
arm9/source/firm.c
View File

@@ -278,7 +278,8 @@ static inline void mergeSection0(FirmwareType firmType, u32 firmVersion, bool lo
srcModuleSize = moduleList[nbModules].size = ((Cxi *)src)->ncch.contentSize * 0x200;
}
if(firmType == NATIVE_FIRM && (ISN3DS || firmVersion >= 0x1D))
// SAFE_FIRM only for N3DS and only if ENABLESAFEFIRMROSALINA is on
if((firmType == NATIVE_FIRM || firmType == SAFE_FIRM) && (ISN3DS || firmVersion >= 0x1D))
{
//2) Merge that info with our own modules'
for(u8 *src = (u8 *)0x18180000; memcmp(((Cxi *)src)->ncch.magic, "NCCH", 4) == 0; src += srcModuleSize)
@@ -303,7 +304,9 @@ static inline void mergeSection0(FirmwareType firmType, u32 firmVersion, bool lo
//3) Read or copy the modules
u8 *dst = firm->section[0].address;
const char *extModuleSizeError = "The external FIRM modules are too large.";
for(u32 i = 0, dstModuleSize, maxModuleSize = firmType == NATIVE_FIRM ? 0x80000 : 0x600000; i < nbModules; i++, dst += dstModuleSize, maxModuleSize -= dstModuleSize)
// SAFE_FIRM only for N3DS and only if ENABLESAFEFIRMROSALINA is on
u32 maxModuleSize = (firmType == NATIVE_FIRM || firmType == SAFE_FIRM) ? 0x80000 : 0x600000;
for(u32 i = 0, dstModuleSize; i < nbModules; i++, dst += dstModuleSize, maxModuleSize -= dstModuleSize)
{
if(loadFromStorage)
{
@@ -335,7 +338,7 @@ static inline void mergeSection0(FirmwareType firmType, u32 firmVersion, bool lo
memcpy(dst, moduleList[i].src, dstModuleSize);
}
//4) Patch NATIVE_FIRM if necessary
//4) Patch NATIVE_FIRM/SAFE_FIRM (N3DS) if necessary
if(nbModules == 6)
{
if(patchK11ModuleLoading(firm->section[0].size, dst - firm->section[0].address, (u8 *)firm + firm->section[1].offset, firm->section[1].size) != 0)
@@ -522,6 +525,31 @@ u32 patch1x2xNativeAndSafeFirm(void)
ret += patchArm9ExceptionHandlersInstall(arm9Section, kernel9Size);
ret += patchSvcBreak9(arm9Section, kernel9Size, (u32)firm->section[2].address);
if(ISN3DS && CONFIG(ENABLESAFEFIRMROSALINA))
{
u8 *arm11Section1 = (u8 *)firm + firm->section[1].offset;
//Find the Kernel11 SVC table and handler, exceptions page and free space locations
u32 baseK11VA;
u8 *freeK11Space;
u32 *arm11SvcHandler,
*arm11ExceptionsPage,
*arm11SvcTable = getKernel11Info(arm11Section1, firm->section[1].size, &baseK11VA, &freeK11Space, &arm11SvcHandler, &arm11ExceptionsPage);
ret += installK11Extension(arm11Section1, firm->section[1].size, false, baseK11VA, arm11ExceptionsPage, &freeK11Space);
ret += patchKernel11(arm11Section1, firm->section[1].size, baseK11VA, arm11SvcTable, arm11ExceptionsPage);
// Add some other patches to the mix, as we can now launch homebrew on SAFE_FIRM:
//Apply firmlaunch patches
ret += patchFirmlaunches(process9Offset, process9Size, process9MemAddr);
ret += patchKernel9Panic(arm9Section, kernel9Size);
ret += patchP9AccessChecks(process9Offset, process9Size);
mergeSection0(NATIVE_FIRM, 0x45, false); // may change in the future
firm->section[0].size = 0;
}
return ret;
}