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[Loader] Refacored memory mapping class, added function to get size of a mapped memory region.

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- Removed log
This commit is contained in:
Maschell 2018-04-08 13:02:53 +02:00
parent b4a07cfdd5
commit e5ab52c4af
4 changed files with 160 additions and 89083 deletions
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229
loader/src/mymemory/memory_mapping.cpp
View File

@ -73,17 +73,7 @@ u32 MemoryMapping::getHeapAddress() {
}
u32 MemoryMapping::getHeapSize() {
const memory_values_t * mem_vals = mem_mapping[2].physical_addresses;
u32 ea_size = 0;
for(u32 j = 0;; j++) {
u32 pa_start_address = mem_vals[j].start_address;
u32 pa_end_address = mem_vals[j].end_address;
if(pa_end_address == 0 && pa_start_address == 0) {
break;
}
ea_size += pa_end_address - pa_start_address;
}
return ea_size;
return getAreaSizeFromPageTable(MEMORY_START_PLUGIN_HEAP,MEMORY_START_PLUGIN_HEAP_END - MEMORY_START_PLUGIN_HEAP);
}
void MemoryMapping::searchEmptyMemoryRegions() {
@ -365,26 +355,137 @@ void MemoryMapping::setupMemoryMapping() {
readTestValuesFromMemory();
}
u32 MemoryMapping::getAreaSizeFromPageTable(u32 start, u32 maxSize) {
sr_table_t srTable;
u32 pageTable[0x8000];
SC0x36_KernelReadSRs(&srTable);
SC0x37_KernelReadPTE(pageTable,sizeof(pageTable));
u32 sr_start = start >> 28;
u32 sr_end = (start + maxSize) >> 28;
if(sr_end < sr_start) {
return 0;
}
u32 cur_address = start;
u32 end_address = start + maxSize;
u32 memSize = 0;
for(u32 segment = sr_start; segment <= sr_end ; segment++) {
u32 sr = srTable.value[segment];
if(sr >> 31) {
DEBUG_FUNCTION_LINE("Direct access not supported\n");
} else {
u32 vsid = sr & 0xFFFFFF;
u32 pageSize = 1 << PAGE_INDEX_SHIFT;
u32 cur_end_addr = 0;
if(segment == sr_end) {
cur_end_addr = end_address;
} else {
cur_end_addr = (segment + 1) * 0x10000000;
}
if(segment != sr_start) {
cur_address = (segment) * 0x10000000;
}
bool success = true;
for(u32 addr = cur_address; addr < cur_end_addr; addr += pageSize) {
u32 PTEH = 0;
u32 PTEL = 0;
if(getPageEntryForAddress(srTable.sdr1, addr, vsid, pageTable, &PTEH, &PTEL, false)) {
memSize += pageSize;
} else {
success = false;
break;
}
}
if(!success) {
break;
}
}
}
return memSize;
}
bool MemoryMapping::getPageEntryForAddress(u32 SDR1,u32 addr, u32 vsid, u32 * translation_table,u32* oPTEH, u32* oPTEL, bool checkSecondHash) {
u32 pageMask = SDR1 & 0x1FF;
u32 pageIndex = (addr >> PAGE_INDEX_SHIFT) & PAGE_INDEX_MASK;
u32 primaryHash = (vsid & 0x7FFFF) ^ pageIndex;
if(getPageEntryForAddressEx(SDR1, addr, vsid, primaryHash, translation_table, oPTEH, oPTEL, 0)) {
return true;
}
if(checkSecondHash) {
if(getPageEntryForAddressEx(pageMask, addr, vsid, ~primaryHash, translation_table, oPTEH, oPTEL, 1)) {
return true;
}
}
return false;
}
bool MemoryMapping::getPageEntryForAddressEx(u32 pageMask, u32 addr, u32 vsid, u32 primaryHash, u32 * translation_table,u32* oPTEH, u32* oPTEL,u32 H) {
uint32_t maskedHash = primaryHash & ((pageMask << 10) | 0x3FF);
uint32_t api = (addr >> 22) & 0x3F;
uint32_t pteAddrOffset = (maskedHash << 6);
for (int j = 0; j < 8; j++, pteAddrOffset += 8) {
uint32_t PTEH = 0;
uint32_t PTEL = 0;
u32 pteh_index = pteAddrOffset / 4;
u32 ptel_index = pteh_index + 1;
PTEH = translation_table[pteh_index];
PTEL = translation_table[ptel_index];
//Check validity
if (!(PTEH >> 31)) {
//printf("PTE is not valid \n");
continue;
}
//DEBUG_FUNCTION_LINE("in\n");
// the H bit indicated if the PTE was found using the second hash.
if (((PTEH >> 6) & 1) != H) {
//DEBUG_FUNCTION_LINE("Secondary hash is used\n",((PTEH >> 6) & 1));
continue;
}
// Check if the VSID matches, otherwise this is a PTE for another SR
// This is the place where collision could happen.
// Hopefully no collision happen and only the PTEs of the SR will match.
if (((PTEH >> 7) & 0xFFFFFF) != vsid) {
//DEBUG_FUNCTION_LINE("VSID mismatch\n");
continue;
}
// Check the API (Abbreviated Page Index)
if ((PTEH & 0x3F) != api) {
//DEBUG_FUNCTION_LINE("API mismatch\n");
continue;
}
*oPTEH = PTEH;
*oPTEL = PTEL;
return true;
}
return false;
}
void MemoryMapping::printPageTableTranslation(sr_table_t srTable, u32 * translation_table) {
u32 SDR1 = srTable.sdr1;
//u32 pagemask = SDR1 & 0x1FF;
//u32 hashmask = (pagemask << 10) | 0x3FF;
uint32_t pagetbl = SDR1 & 0xFFFF0000;
u32 pageIndexShift = 32 - 15;
u32 pageIndexMask = (1 << (28 - pageIndexShift)) - 1;
//u32 byteOffsetMask = (1 << pageIndexShift) - 1;
//u32 apiShift = 22 - pageIndexShift;
//FSUtils::saveBufferToFile("sd:/table.bin", pteTable,sizeof(pteTable));
pageInformation current;
memset(&current,0,sizeof(current));
std::vector<pageInformation> pageInfos;
DEBUG_FUNCTION_LINE("Page table (%08X):\n",pagetbl);
for(u32 segment = 0; segment < 16 ; segment++) {
u32 sr = srTable.value[segment];
if(sr >> 31) {
@ -396,67 +497,14 @@ void MemoryMapping::printPageTableTranslation(sr_table_t srTable, u32 * translat
u32 vsid = sr & 0xFFFFFF;
DEBUG_FUNCTION_LINE("ks %08X kp %08X nx %08X vsid %08X\n",ks,kp,nx,vsid);
u32 pageSize = 1 << pageIndexShift;
u32 pageSize = 1 << PAGE_INDEX_SHIFT;
for(u32 addr = segment * 0x10000000; addr < (segment + 1) * 0x10000000; addr += pageSize) {
uint32_t pageIndex = (addr >> pageIndexShift) & pageIndexMask;
uint32_t primaryHash = (vsid & 0x7FFFF) ^ pageIndex;
uint32_t pageTable = SDR1 & 0xFFFF0000;
uint32_t pageMask = SDR1 & 0x1FF;
uint32_t maskedHash = primaryHash & ((pageMask << 10) | 0x3FF);
uint32_t api = (addr >> 22) & 0x3F;
uint32_t pteaddr = pageTable | (maskedHash << 6);
//DEBUG_FUNCTION_LINE("pteAddr %08X\n",pteAddr);
bool found = false;
for (int j = 0; j < 8; j++, pteaddr += 8) {
uint32_t PTEH = 0;
uint32_t PTEL = 0;
u32 pteh_index = (pteaddr-pagetbl) / 4;
u32 ptel_index = pteh_index + 1;
//DEBUG_FUNCTION_LINE("pteh_index %08X\n",pteh_index);
//DEBUG_FUNCTION_LINE("ptel_index %08X\n",ptel_index);
PTEH = translation_table[pteh_index];
PTEL = translation_table[ptel_index];
//if(!readPTE(pteaddr,&PTEH)) continue;
//if(!readPTE(pteaddr+4,&PTEL)) continue;
//Check validity
if (!(PTEH >> 31)) {
//printf("PTE is not valid \n");
continue;
}
//DEBUG_FUNCTION_LINE("in\n");
// the H bit indicated if the PTE was found using the second hash.
if (((PTEH >> 6) & 1)) {
//DEBUG_FUNCTION_LINE("Secondary hash is used\n",((PTEH >> 6) & 1));
continue;
}
// Check if the VSID matches, otherwise this is a PTE for another SR
// This is the place where collision could happen.
// Hopefully no collision happen and only the PTEs of the SR will match.
if (((PTEH >> 7) & 0xFFFFFF) != vsid) {
//DEBUG_FUNCTION_LINE("VSID mismatch\n");
continue;
}
// Check the API (Abbreviated Page Index)
if ((PTEH & 0x3F) != api) {
//DEBUG_FUNCTION_LINE("API mismatch\n");
continue;
}
u32 PTEH = 0;
u32 PTEL = 0;
if(getPageEntryForAddress(SDR1, addr, vsid, translation_table, &PTEH, &PTEL, false)) {
uint32_t pp = PTEL & 3;
uint32_t phys = PTEL & 0xFFFFF000;
//DEBUG_FUNCTION_LINE("%08X: %08X %08X \n",pteaddr-pagetbl,PTEH,PTEL);
//DEBUG_FUNCTION_LINE("current.phys == phys - current.size ( %08X %08X)\n",current.phys, phys - current.size);
if( current.ks == ks &&
@ -486,11 +534,7 @@ void MemoryMapping::printPageTableTranslation(sr_table_t srTable, u32 * translat
current.pp = pp;
current.phys = phys;
}
found = true;
break;
}
if(!found) {
} else {
if(current.addr != 0 && current.size != 0) {
pageInfos.push_back(current);
memset(&current,0,sizeof(current));
@ -515,19 +559,17 @@ void MemoryMapping::printPageTableTranslation(sr_table_t srTable, u32 * translat
bool MemoryMapping::mapMemory(uint32_t pa_start_address,uint32_t pa_end_address,uint32_t ea_start_address, sr_table_t SRTable, u32 * translation_table) {
// Based on code from dimok. Thanks!
u32 pageIndexShift = 32 - 15;
u32 pageIndexMask = (1 << (28 - pageIndexShift)) - 1;
//u32 byteOffsetMask = (1 << pageIndexShift) - 1;
//u32 apiShift = 22 - pageIndexShift;
//u32 byteOffsetMask = (1 << PAGE_INDEX_SHIFT) - 1;
//u32 apiShift = 22 - PAGE_INDEX_SHIFT;
// Information on page 5.
// https://www.nxp.com/docs/en/application-note/AN2794.pdf
uint32_t HTABORG = SRTable.sdr1 >> 16;
uint32_t HTABMASK = SRTable.sdr1 & 0x1FF;
// Iterate to all possible pages. Each page is 1<<(pageIndexShift) big.
// Iterate to all possible pages. Each page is 1<<(PAGE_INDEX_SHIFT) big.
uint32_t pageSize = 1<<(pageIndexShift);
uint32_t pageSize = 1<<(PAGE_INDEX_SHIFT);
for(u32 i = 0; i < pa_end_address - pa_start_address; i += pageSize) {
// Calculate the current effective address.
uint32_t ea_addr = ea_start_address + i;
@ -550,14 +592,13 @@ bool MemoryMapping::mapMemory(uint32_t pa_start_address,uint32_t pa_end_address,
uint32_t WIMG = 0x02;
uint32_t PP = 0x02;
uint32_t page_index = (ea_addr >> pageIndexShift) & pageIndexMask;
uint32_t page_index = (ea_addr >> PAGE_INDEX_SHIFT) & PAGE_INDEX_MASK;
uint32_t API = (ea_addr >> 22) & 0x3F;
uint32_t PTEH = (V << 31) | (VSID << 7) | (H << 6) | API;
uint32_t PTEL = (RPN << 12) | (RC << 7) | (WIMG << 3) | PP;
//unsigned long long virtual_address = ((unsigned long long)VSID << 28UL) | (page_index << pageIndexShift) | (ea_addr & 0xFFF);
//unsigned long long virtual_address = ((unsigned long long)VSID << 28UL) | (page_index << PAGE_INDEX_SHIFT) | (ea_addr & 0xFFF);
uint32_t primary_hash = (VSID & 0x7FFFF);

28
loader/src/mymemory/memory_mapping.h
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@ -28,13 +28,24 @@ typedef struct _memory_mapping_t {
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 // At most: 128MB for plugins heap.
#define MEMORY_START_PLUGIN_HEAP MEMORY_START_BASE + 0x08000000 // At most: 128MB for plugins heap.
#define MEMORY_START_PLUGIN_SPACE MEMORY_START_BASE + 0x00800000 // At most: 120MB for plugins.
#define MEMORY_START_PLUGIN_LOADER MEMORY_START_BASE + 0x00000000 // At most: 8MB for the plugin loader.
#define MEMORY_START_BASE 0x80000000
#define MEMORY_LOADER_SPACE_SIZE 0x00800000 // At most: 8MB for the plugin loader.
#define MEMORY_PLUGIN_SPACE_SIZE 0x07800000 // At most: 120MB for plugins.
#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_PLUGIN_HEAP MEMORY_START_PLUGIN_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
@ -116,11 +127,18 @@ public:
static u32 getHeapSize();
static u32 getAreaSizeFromPageTable(u32 start, u32 maxSize);
private:
static void memoryMappingForRegions(const memory_mapping_t * memory_mapping, sr_table_t SRTable, u32 * translation_table);
static bool mapMemory(u32 pa_start_address,u32 pa_end_address,u32 ea_start_address, sr_table_t SRTable, u32 * translation_table);
static bool getPageEntryForAddress(u32 SDR1, u32 addr, u32 vsid, u32 * translation_table,u32* oPTEH, u32* oPTEL, bool checkSecondHash);
static bool getPageEntryForAddressEx(u32 pageMask, u32 addr, u32 vsid, u32 primaryHash, u32 * translation_table,u32* oPTEH, u32* oPTEL,u32 H) ;
};

3
loader/src/plugin/PluginLoader.cpp
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@ -302,7 +302,6 @@ bool PluginLoader::loadAndLinkElf(PluginData * pluginData, Elf *elf, void * endA
goto exit_error;
}
//DEBUG_FUNCTION_LINE("Copy section %s to %08X\n",name,curAddress);
if (!ElfTools::elfLoadSection(elf, scn, shdr, (void*) curAddress)) {
goto exit_error;
}
@ -346,6 +345,8 @@ bool PluginLoader::loadAndLinkElf(PluginData * pluginData, Elf *elf, void * endA
this->setCurrentStoreAddress((void *) curAddress);
DEBUG_FUNCTION_LINE("Copied plugin %s to %08X\n",pluginData->getPluginInformation()->getName().c_str(),curAddress);
result = true;
exit_error:
if (!result) DEBUG_FUNCTION_LINE("exit_error\n");

88983
tools/udp_debug_reader/GeckoLog.txt
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