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Update kernel

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This commit is contained in:
EnderIce2
2024-01-19 06:47:42 +02:00
parent fd15592608
commit 96daa43d38
282 changed files with 25486 additions and 15700 deletions
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52
arch/amd64/memory/vmm.cpp
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@ -29,7 +29,7 @@ namespace Memory
Address &= 0xFFFFFFFFFFFFF000;
PageMapIndexer Index = PageMapIndexer(Address);
PageMapLevel4 *PML4 = &this->Table->Entries[Index.PMLIndex];
PageMapLevel4 *PML4 = &this->pTable->Entries[Index.PMLIndex];
PageDirectoryPointerTableEntryPtr *PDPTE = nullptr;
PageDirectoryEntryPtr *PDE = nullptr;
@ -74,7 +74,7 @@ namespace Memory
Address &= 0xFFFFFFFFFFFFF000;
PageMapIndexer Index = PageMapIndexer(Address);
PageMapLevel4 *PML4 = &this->Table->Entries[Index.PMLIndex];
PageMapLevel4 *PML4 = &this->pTable->Entries[Index.PMLIndex];
PageDirectoryPointerTableEntryPtr *PDPTE = nullptr;
PageDirectoryEntryPtr *PDE = nullptr;
@ -119,7 +119,7 @@ namespace Memory
Address &= 0xFFFFFFFFFFFFF000;
PageMapIndexer Index = PageMapIndexer(Address);
PageMapLevel4 *PML4 = &this->Table->Entries[Index.PMLIndex];
PageMapLevel4 *PML4 = &this->pTable->Entries[Index.PMLIndex];
PageDirectoryPointerTableEntryPtr *PDPTE = nullptr;
PageDirectoryEntryPtr *PDE = nullptr;
@ -172,9 +172,11 @@ namespace Memory
Address &= 0xFFFFFFFFFFFFF000;
PageMapIndexer Index = PageMapIndexer(Address);
PageMapLevel4 *PML4 = &this->Table->Entries[Index.PMLIndex];
PageMapLevel4 *PML4 = &this->pTable->Entries[Index.PMLIndex];
if (PML4->Present)
return PML4;
debug("PML4 not present for %#lx", VirtualAddress);
return nullptr;
}
@ -185,14 +187,19 @@ namespace Memory
Address &= 0xFFFFFFFFFFFFF000;
PageMapIndexer Index = PageMapIndexer(Address);
PageMapLevel4 *PML4 = &this->Table->Entries[Index.PMLIndex];
PageMapLevel4 *PML4 = &this->pTable->Entries[Index.PMLIndex];
if (!PML4->Present)
{
debug("PML4 not present for %#lx", VirtualAddress);
return nullptr;
}
PageDirectoryPointerTableEntryPtr *PDPTEPtr = (PageDirectoryPointerTableEntryPtr *)((uintptr_t)PML4->Address << 12);
PageDirectoryPointerTableEntry *PDPTE = &PDPTEPtr->Entries[Index.PDPTEIndex];
if (PDPTE->Present)
return PDPTE;
debug("PDPTE not present for %#lx", VirtualAddress);
return nullptr;
}
@ -203,19 +210,27 @@ namespace Memory
Address &= 0xFFFFFFFFFFFFF000;
PageMapIndexer Index = PageMapIndexer(Address);
PageMapLevel4 *PML4 = &this->Table->Entries[Index.PMLIndex];
PageMapLevel4 *PML4 = &this->pTable->Entries[Index.PMLIndex];
if (!PML4->Present)
{
debug("PML4 not present for %#lx", VirtualAddress);
return nullptr;
}
PageDirectoryPointerTableEntryPtr *PDPTEPtr = (PageDirectoryPointerTableEntryPtr *)((uintptr_t)PML4->Address << 12);
PageDirectoryPointerTableEntry *PDPTE = &PDPTEPtr->Entries[Index.PDPTEIndex];
if (!PDPTE->Present)
{
debug("PDPTE not present for %#lx", VirtualAddress);
return nullptr;
}
PageDirectoryEntryPtr *PDEPtr = (PageDirectoryEntryPtr *)(PDPTE->GetAddress() << 12);
PageDirectoryEntry *PDE = &PDEPtr->Entries[Index.PDEIndex];
if (PDE->Present)
return PDE;
debug("PDE not present for %#lx", VirtualAddress);
return nullptr;
}
@ -226,31 +241,42 @@ namespace Memory
Address &= 0xFFFFFFFFFFFFF000;
PageMapIndexer Index = PageMapIndexer(Address);
PageMapLevel4 *PML4 = &this->Table->Entries[Index.PMLIndex];
PageMapLevel4 *PML4 = &this->pTable->Entries[Index.PMLIndex];
if (!PML4->Present)
{
debug("PML4 not present for %#lx", VirtualAddress);
return nullptr;
}
PageDirectoryPointerTableEntryPtr *PDPTEPtr = (PageDirectoryPointerTableEntryPtr *)((uintptr_t)PML4->Address << 12);
PageDirectoryPointerTableEntry *PDPTE = &PDPTEPtr->Entries[Index.PDPTEIndex];
if (!PDPTE->Present)
{
debug("PDPTE not present for %#lx", VirtualAddress);
return nullptr;
}
PageDirectoryEntryPtr *PDEPtr = (PageDirectoryEntryPtr *)(PDPTE->GetAddress() << 12);
PageDirectoryEntry *PDE = &PDEPtr->Entries[Index.PDEIndex];
if (!PDE->Present)
{
debug("PDE not present for %#lx", VirtualAddress);
return nullptr;
}
PageTableEntryPtr *PTEPtr = (PageTableEntryPtr *)(PDE->GetAddress() << 12);
PageTableEntry *PTE = &PTEPtr->Entries[Index.PTEIndex];
if (PTE->Present)
return PTE;
debug("PTE not present for %#lx", VirtualAddress);
return nullptr;
}
void Virtual::Map(void *VirtualAddress, void *PhysicalAddress, uint64_t Flags, MapType Type)
{
SmartLock(this->MemoryLock);
if (unlikely(!this->Table))
if (unlikely(!this->pTable))
{
error("No page table");
return;
@ -262,7 +288,7 @@ namespace Memory
// Clear any flags that are not 1 << 0 (Present) - 1 << 5 (Accessed) because rest are for page table entries only
uint64_t DirectoryFlags = Flags & 0x3F;
PageMapLevel4 *PML4 = &this->Table->Entries[Index.PMLIndex];
PageMapLevel4 *PML4 = &this->pTable->Entries[Index.PMLIndex];
PageDirectoryPointerTableEntryPtr *PDPTEPtr = nullptr;
if (!PML4->Present)
{
@ -323,7 +349,7 @@ namespace Memory
PTE->Present = true;
PTE->raw |= Flags;
PTE->SetAddress((uintptr_t)PhysicalAddress >> 12);
CPU::x32::invlpg(VirtualAddress);
CPU::x64::invlpg(VirtualAddress);
#ifdef DEBUG
/* https://stackoverflow.com/a/3208376/9352057 */
@ -346,14 +372,14 @@ namespace Memory
void Virtual::Unmap(void *VirtualAddress, MapType Type)
{
SmartLock(this->MemoryLock);
if (!this->Table)
if (!this->pTable)
{
error("No page table");
return;
}
PageMapIndexer Index = PageMapIndexer((uintptr_t)VirtualAddress);
PageMapLevel4 *PML4 = &this->Table->Entries[Index.PMLIndex];
PageMapLevel4 *PML4 = &this->pTable->Entries[Index.PMLIndex];
if (!PML4->Present)
{
warn("Page %#lx not present", PML4->GetAddress());
@ -398,6 +424,6 @@ namespace Memory
PTE.Present = false;
PTEPtr->Entries[Index.PTEIndex] = PTE;
CPU::x32::invlpg(VirtualAddress);
CPU::x64::invlpg(VirtualAddress);
}
}