#ifndef __MEMORY_MAPPING_H_ #define __MEMORY_MAPPING_H_ #include #ifdef __cplusplus extern "C" { #endif #include #include "kernel/kernel_defs.h" typedef struct pageInformation_ { uint32_t addr; uint32_t size; uint32_t ks; uint32_t kp; uint32_t nx; uint32_t pp; uint32_t phys; } pageInformation; typedef struct _memory_values_t { uint32_t start_address; uint32_t end_address; } memory_values_t; typedef struct _memory_mapping_t { uint32_t effective_start_address; uint32_t effective_end_address; const memory_values_t* physical_addresses; } memory_mapping_t; #define SEGMENT_UNIQUE_ID 0x00AABBCC // Unique ID. Chosen arbitrary. #define PAGE_INDEX_SHIFT (32-15) #define PAGE_INDEX_MASK ((1 << (28 - PAGE_INDEX_SHIFT)) - 1) #define MEMORY_START_BASE 0x80000000 #define MEMORY_LOADER_SPACE_SIZE 0x00800000 // At most: 8MB for the plugin loader. #define MEMORY_PLUGIN_SPACE_SIZE 0x04000000 // At most: 64MB for plugins. #define MEMORY_VIDEO_SPACE_SIZE 0x03600000 // At most: 56MB for video. #define MEMORY_PLUGIN_HEAP_SIZE 0x08000000 // At most: 128MB for plugins heap. #define MEMORY_START_PLUGIN_LOADER MEMORY_START_BASE #define MEMORY_START_PLUGIN_LOADER_END MEMORY_START_PLUGIN_LOADER + MEMORY_LOADER_SPACE_SIZE #define MEMORY_START_PLUGIN_SPACE MEMORY_START_PLUGIN_LOADER_END #define MEMORY_START_PLUGIN_SPACE_END MEMORY_START_PLUGIN_SPACE + MEMORY_PLUGIN_SPACE_SIZE #define MEMORY_START_VIDEO_SPACE MEMORY_START_PLUGIN_SPACE_END #define MEMORY_START_VIDEO_SPACE_END MEMORY_START_VIDEO_SPACE + MEMORY_VIDEO_SPACE_SIZE #define MEMORY_START_PLUGIN_HEAP MEMORY_START_VIDEO_SPACE_END #define MEMORY_START_PLUGIN_HEAP_END MEMORY_START_PLUGIN_HEAP + MEMORY_PLUGIN_HEAP_SIZE const memory_values_t mem_vals_loader[] = { {0x28000000 + 0x06620000, 0x28000000 + 0x06E20000}, // 8MB 0x80000000 0x80800000 -> 0x2E700000 0x2EF00000 {0,0} }; const memory_values_t mem_vals_plugins[] = { {0x28000000 + 0x06E20000, 0x28000000 + 0x07E20000}, // 16MB 0x80800000 0x81800000 -> 0x2EF00000 0x2FF00000 {0,0} }; const memory_values_t mem_vals_video[] = { // The GPU doesn't have access to the 0x28000000 - 0x32000000 area, so we need memory from somewhere else. // From the SharedReadHeap of the loader. // // #define TinyHeap_Alloc ((int32_t (*)(void* heap, int32_t size, int32_t align,void ** outPtr))0x0101235C) // #define TinyHeap_Free ((void (*)(void* heap, void * ptr))0x01012814) // uint32_t SharedReadHeapTrackingAddr = 0xFA000000 + 0x18 + 0x830 // see https://github.com/decaf-emu/decaf-emu/blob/master/src/libdecaf/src/cafe/loader/cafe_loader_shared.cpp#L490 // // Map the area of the heap to somewhere in the user space and test allocation with // void * heap = (void*) SharedReadHeapTrackingAddr - [delta due mapping e.g (0xF8000000 + 0x80000000)]; // int size = 0x20000; // value have to be a multiple of 0x20000; // while(true){ // void * outPtr = NULL; // if(TinyHeap_Alloc(heap,size, 0x20000,&outPtr) == 0){ // value have to be a multiple of 0x20000; // DEBUG_FUNCTION_LINE("Allocated %d kb on heap %08X (PA %08X)\n",size/1024,(uint32_t)outPtr, OSEffectiveToPhysical(outPtr)); // TinyHeap_Free(heap, outPtr); // }else{ // DEBUG_FUNCTION_LINE("Failed %08X\n",(uint32_t)outPtr); // break; // } // size += 0x20000; // value have to be a multiple of 0x20000; // } // {0x1A020000, 0x1A020000 +0xE60000}, // size: 14720 kB // The following chunk were empty while early tests and are maybe promising. However we can get 15mb from // a loader heap. Which should be enough for now. //{0x14000000 + 0x02E00000 , 0x14000000 +0x034E0000}, // size: 7040 kB //{0x14000000 + 0x02820000 , 0x14000000 +0x02C20000}, // size: 4096 kB //{0x14000000 + 0x05AE0000 , 0x14000000 +0x06000000}, // size: 5248 kB //{0x14000000 + 0x08040000 , 0x14000000 +0x08400000}, // size: 3840 kB //{0x18000000 , 0x18000000 +0x3000000}, // size: 3840 kB {0,0} }; // Values needs to be aligned to 0x20000 and size needs to be a multiple of 0x20000 const memory_values_t mem_vals_heap[] = { // 5.5.2 EUR {0x28000000 + 0x09000000, 0x28000000 + 0x09E20000}, // size: 14464 kB {0x28000000 + 0x058E0000, 0x28000000 + 0x06000000}, // size: 7296 kB {0x28000000 + 0x053C0000, 0x28000000 + 0x05880000}, // size: 4864 kB //{0x28000000 + 0x08C20000, 0x28000000 + 0x08F20000}, // size: 3072 kB is part of BAT mapping. {0x28000000 + 0x00900000, 0x28000000 + 0x00B00000}, // size: 2048 kB {0x28000000 + 0x07E20000, 0x28000000 + 0x07F80000}, // size: 1408 kB {0x28000000 + 0x02060000, 0x28000000 + 0x021A0000}, // size: 1280 kB {0x28000000 + 0x083C0000, 0x28000000 + 0x084C0000}, // size: 1024 kB {0x28000000 + 0x003C0000, 0x28000000 + 0x004C0000}, // size: 1024 kB {0x28000000 + 0x02BC0000, 0x28000000 + 0x02CA0000}, // size: 896 kB {0x28000000 + 0x080E0000, 0x28000000 + 0x08180000}, // size: 640 kB {0x28000000 + 0x000E0000, 0x28000000 + 0x00160000}, // size: 512 kB {0x28000000 + 0x00E40000, 0x28000000 + 0x00EC0000}, // size: 512 kB {0x28000000 + 0x00EE0000, 0x28000000 + 0x00F60000}, // size: 512 kB {0x28000000 + 0x00FA0000, 0x28000000 + 0x01020000}, // size: 512 kB {0x28000000 + 0x086E0000, 0x28000000 + 0x08760000}, // size: 512 kB {0x28000000 + 0x04B60000, 0x28000000 + 0x04B80000}, // size: 128 kB // This chunk was reduced several times, it _might_ be dangerous to use, let's put it right to the end. {0x28000000 + 0x01040000, 0x28000000 + 0x01340000}, // size: 3072 kB // Not usable on 5.5.2 // // Used in notifications {0x28000000 + 0x01720000, 0x28000000 + 0x018A0000}, // size: 1536 kB // {0x28000000 + 0x03820000, 0x28000000 + 0x038C0000}, // size: 640 kB // {0x28000000 + 0x03920000, 0x28000000 + 0x039A0000}, // size: 512 kB // Used in notifications {0x28000000 + 0x04B80000, 0x28000000 + 0x051E0000}, // size: 6528 kB // {0x28000000 + 0x08F20000, 0x28000000 + 0x09000000}, // size: 896 kB // {0x28000000 + 0x013A0000, 0x28000000 + 0x013C0000}, // size: 128 kB // Porting to other/newer firmware: // Map this to check for free regions. // Use MemoryMapper::testFreeMemory() to see regions with are 0x00000000; // Then map the promising regions, and do the write/read check. // Writing numbers into the area, open the home menu and all background apps an check if anything was // overridden. // {0x28000000 + 0x00000000, 0x28000000 + 0x0A000000}, // {0,0} }; const memory_mapping_t mem_mapping[] = { {MEMORY_START_VIDEO_SPACE, MEMORY_START_VIDEO_SPACE_END, mem_vals_video}, {MEMORY_START_PLUGIN_LOADER, MEMORY_START_PLUGIN_LOADER_END, mem_vals_loader}, {MEMORY_START_PLUGIN_SPACE, MEMORY_START_PLUGIN_SPACE_END, mem_vals_plugins}, {MEMORY_START_PLUGIN_HEAP, MEMORY_START_PLUGIN_HEAP_END, mem_vals_heap}, {0,0,NULL} }; class MemoryMapping { public: static bool isMemoryMapped(); static void setupMemoryMapping(); static void printPageTableTranslation(sr_table_t srTable, uint32_t * translation_table); static void writeTestValuesToMemory(); static void readTestValuesFromMemory(); static void searchEmptyMemoryRegions(); static uint32_t getHeapAddress(); static uint32_t getHeapSize(); static uint32_t getVideoMemoryAddress(); static uint32_t getVideoMemorySize(); static uint32_t getPluginSpaceMemoryAddress(); static uint32_t getPluginSpaceMemorySize(); static uint32_t getAreaSizeFromPageTable(uint32_t start, uint32_t maxSize); // Caution when using the result. A chunk of memory in effective address may be split up // into several small chunks inside physical space. static uint32_t PhysicalToEffective(uint32_t phyiscalAddress); // Caution when using the result. A chunk of memory in effective address may be split up // into several small chunks inside physical space. static uint32_t EffectiveToPhysical(uint32_t effectiveAddress); private: static void memoryMappingForRegions(const memory_mapping_t * memory_mapping, sr_table_t SRTable, uint32_t * translation_table); static bool mapMemory(uint32_t pa_start_address,uint32_t pa_end_address,uint32_t ea_start_address, sr_table_t SRTable, uint32_t * translation_table); static bool getPageEntryForAddress(uint32_t SDR1, uint32_t addr, uint32_t vsid, uint32_t * translation_table,uint32_t* oPTEH, uint32_t* oPTEL, bool checkSecondHash); static bool getPageEntryForAddressEx(uint32_t pageMask, uint32_t addr, uint32_t vsid, uint32_t primaryHash, uint32_t * translation_table,uint32_t* oPTEH, uint32_t* oPTEL,uint32_t H) ; }; #ifdef __cplusplus } #endif #endif // __KERNEL_DEFS_H_