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Restore correctly the pfn database during reboots when using the debug layout

This commit is contained in:
ergo720 2020-10-11 23:33:43 +02:00
parent cd918389a4
commit dd5a029ee6
1 changed files with 22 additions and 10 deletions
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32
src/core/kernel/memory-manager/VMManager.cpp
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@ -330,26 +330,38 @@ void VMManager::RestorePersistentMemory()
MMPTE pte;
PFN pfn;
size_t pfn_num_pages;
uint32_t *pfn_addr;
if (m_MmLayoutRetail) {
pfn_addr = (uint32_t *)XBOX_PFN_ADDRESS;
pfn_num_pages = 16;
}
else if (m_MmLayoutDebug) {
pfn_addr = (uint32_t *)XBOX_PFN_ADDRESS;
pfn_num_pages = 32;
}
else {
pfn_addr = (uint32_t *)CHIHIRO_PFN_ADDRESS;
pfn_num_pages = 32;
}
for (unsigned int i = 0; i < persisted_mem->NumOfPtes; i++) {
pte.Default = persisted_mem->Data[persisted_mem->NumOfPtes + i];
assert(pte.Hardware.Valid != 0 && pte.Hardware.Persist != 0);
memcpy(GetPteAddress(persisted_mem->Data[i]), &pte.Default, sizeof(MMPTE));
RemoveFree(1, &pfn, 0, pte.Hardware.PFN, pte.Hardware.PFN);
PXBOX_PFN temp_pfn = &((PXBOX_PFN)&persisted_mem->Data[(persisted_mem->NumOfPtes * 2) + (persisted_mem->NumOfPtes - pfn_num_pages) * KiB(1)])[pte.Hardware.PFN];
m_PagesByUsage[temp_pfn->Busy.BusyType]++;
if (m_MmLayoutChihiro) {
PXBOX_PFN temp_pfn = &((PXBOX_PFN)&persisted_mem->Data[(persisted_mem->NumOfPtes * 2) + (persisted_mem->NumOfPtes - 32) * KiB(1)])[pte.Hardware.PFN];
m_PagesByUsage[temp_pfn->Busy.BusyType]++;
memcpy(CHIHIRO_PFN_ELEMENT(pte.Hardware.PFN), temp_pfn, sizeof(XBOX_PFN));
if ((uint32_t*)persisted_mem->Data[i] < (uint32_t*)CHIHIRO_PFN_ADDRESS) {
memcpy((void*)(persisted_mem->Data[i]), &persisted_mem->Data[persisted_mem->NumOfPtes * 2 + i * KiB(1)], PAGE_SIZE);
}
}
else {
PXBOX_PFN temp_pfn = &((PXBOX_PFN)&persisted_mem->Data[(persisted_mem->NumOfPtes * 2) + (persisted_mem->NumOfPtes - 16) * KiB(1)])[pte.Hardware.PFN];
m_PagesByUsage[temp_pfn->Busy.BusyType]++;
memcpy(XBOX_PFN_ELEMENT(pte.Hardware.PFN), temp_pfn, sizeof(XBOX_PFN));
if ((uint32_t*)persisted_mem->Data[i] < (uint32_t*)XBOX_PFN_ADDRESS) {
memcpy((void*)(persisted_mem->Data[i]), &persisted_mem->Data[persisted_mem->NumOfPtes * 2 + i * KiB(1)], PAGE_SIZE);
}
}
if ((uint32_t *)persisted_mem->Data[i] < pfn_addr) {
memcpy((void *)(persisted_mem->Data[i]), &persisted_mem->Data[persisted_mem->NumOfPtes * 2 + i * KiB(1)], PAGE_SIZE);
}
}