mirror of
https://github.com/brain-hackers/brainlilo
synced 2024-12-08 05:10:05 +09:00
0
modified: BrainLILOdrv.cpp
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parent
6fbf85a88e
commit
d596552dd0
@ -120,7 +120,7 @@ static void EDNA2_installPhysicalInvoker(){
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__attribute__((noreturn))
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static void EDNA2_runPhysicalInvoker(){
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static void EDNA2_runPhysicalInvoker(unsigned long bootloaderphysaddr,DWORD size){
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// r0=info
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asm volatile("msr cpsr_c, #211\n" // to supervisor mode
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"mrc p15,0,r0,c1,c0,0\n" // read ctrl regs
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@ -141,10 +141,9 @@ static void EDNA2_runPhysicalInvoker(){
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"mrc p15,0,r10,c1,c0,0\n" // read ctrl regs
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"bic r10, r10, #5\n" // disable MMU/DCache
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"mcr p15,0,r10,c1,c0,0\n" // write ctrl regs
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"mov pc, r8\n"
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"swi #0\n" // jump!
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);
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for(unsigned int i=0;i<size;i++)*((char *)(0x40002000+i))=*((char *)(bootloaderphysaddr+i));
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asm volatile("swi #0\n" // jump!
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);
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// never reach here
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@ -152,13 +151,13 @@ static void EDNA2_runPhysicalInvoker(){
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}
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__attribute__((noreturn))
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static DWORD EDNA2_callKernelEntryPoint(){
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static DWORD EDNA2_callKernelEntryPoint(unsigned long bootloaderphysaddr,DWORD size){
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OutputDebugString(L"BrainLILO: disabling interrupts");
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disableInterrupts();
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OutputDebugString(L"BrainLILO: injecting code to internal ram");
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EDNA2_installPhysicalInvoker();
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OutputDebugString(L"BrainLILO: invoking");
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EDNA2_runPhysicalInvoker();
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EDNA2_runPhysicalInvoker(bootloaderphysaddr,size);
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}
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static bool doLinux(){
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@ -166,8 +165,22 @@ static bool doLinux(){
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TCHAR bootloaderFileName[128]=TEXT("\\Storage Card\\loader\\u-boot.bin");
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HANDLE hFile;
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DWORD wReadSize;
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unsigned long bootloaderphysaddr;
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PULONG bootloaderptr;
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HINSTANCE dll;
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AllocPhysMemProc AllocPhysMem;
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dll=LoadLibrary(TEXT("COREDLL.DLL"));
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if (dll == NULL) {
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OutputDebugString(L"Cant load DLL");
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return false;
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}
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AllocPhysMem=(AllocPhysMemProc)GetProcAddress(dll,TEXT("AllocPhysMem"));
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if (AllocPhysMem == NULL) {
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OutputDebugString(L"Cant load AllocPhysMem function");
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return false;
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}
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OutputDebugString(L"BrainLILO: loading bootloader.");
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hFile = CreateFile(bootloaderFileName , GENERIC_READ , 0 , NULL ,OPEN_EXISTING , FILE_ATTRIBUTE_NORMAL , NULL);
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if (hFile == INVALID_HANDLE_VALUE) {
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@ -178,17 +191,16 @@ static bool doLinux(){
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ReadFile(hFile , bootloaderdata , GetFileSize(hFile , NULL) , &wReadSize , NULL);
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CloseHandle(hFile);
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PHYSICAL_ADDRESS pa;
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pa.QuadPart=0x40002000;
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bootloaderptr=(PULONG)MmMapIoSpace(pa,wReadSize,FALSE);
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bootloaderptr=(PULONG)AllocPhysMem(wReadSize,PAGE_EXECUTE_READWRITE,0,0,&bootloaderphysaddr);
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wchar_t buf[256];
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swprintf(buf, L"BrainLILO: copying bootloader to 0x%08x from 0x%08x\n",(int)(bootloaderptr), (int)(bootloaderdata));
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OutputDebugString(buf);
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memcpy(bootloaderptr,bootloaderdata,wReadSize);
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OutputDebugString(L"BrainLILO: bootloader copied");
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free(bootloaderdata);
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EDNA2_callKernelEntryPoint();
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FreeLibrary(dll);
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Sleep(100);
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EDNA2_callKernelEntryPoint(bootloaderphysaddr,wReadSize);
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return true;
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}
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