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Update kernel

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This commit is contained in:
Alex
2023-06-10 13:11:25 +03:00
parent dcdba03426
commit 41db477173
82 changed files with 6342 additions and 4079 deletions
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77
Architecture/i386/Memory/VirtualMemoryManager.cpp
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@ -29,15 +29,15 @@ namespace Memory
Address &= 0xFFFFF000;
PageMapIndexer Index = PageMapIndexer(Address);
PageDirectoryEntry PDE = this->Table->Entries[Index.PDEIndex];
PageDirectoryEntry *PDE = &this->Table->Entries[Index.PDEIndex];
PageTableEntryPtr *PTE = nullptr;
if ((PDE.raw & Flag) > 0)
if ((PDE->raw & Flag) > 0)
{
if (Type == MapType::FourMB && PDE.PageSize)
if (Type == MapType::FourMB && PDE->PageSize)
return true;
PTE = (PageTableEntryPtr *)((uintptr_t)PDE.GetAddress() << 12);
PTE = (PageTableEntryPtr *)((uintptr_t)PDE->GetAddress() << 12);
if (PTE)
{
if ((PTE->Entries[Index.PTEIndex].Present))
@ -54,15 +54,15 @@ namespace Memory
Address &= 0xFFFFF000;
PageMapIndexer Index = PageMapIndexer(Address);
PageDirectoryEntry PDE = this->Table->Entries[Index.PDEIndex];
PageDirectoryEntry *PDE = &this->Table->Entries[Index.PDEIndex];
PageTableEntryPtr *PTE = nullptr;
if (PDE.Present)
if (PDE->Present)
{
if (PDE.PageSize)
return (void *)((uintptr_t)PDE.GetAddress() << 12);
if (PDE->PageSize)
return (void *)((uintptr_t)PDE->GetAddress() << 12);
PTE = (PageTableEntryPtr *)((uintptr_t)PDE.GetAddress() << 12);
PTE = (PageTableEntryPtr *)((uintptr_t)PDE->GetAddress() << 12);
if (PTE)
{
if (PTE->Entries[Index.PTEIndex].Present)
@ -72,6 +72,61 @@ namespace Memory
return nullptr;
}
Virtual::MapType Virtual::GetMapType(void *VirtualAddress)
{
// 0x1000 aligned
uintptr_t Address = (uintptr_t)VirtualAddress;
Address &= 0xFFFFFFFFFFFFF000;
PageMapIndexer Index = PageMapIndexer(Address);
PageDirectoryEntry *PDE = &this->Table->Entries[Index.PDEIndex];
PageTableEntryPtr *PTE = nullptr;
if (PDE->Present)
{
if (PDE->PageSize)
return MapType::FourMB;
PTE = (PageTableEntryPtr *)((uintptr_t)PDE->GetAddress() << 12);
if (PTE)
{
if (PTE->Entries[Index.PTEIndex].Present)
return MapType::FourKB;
}
}
return MapType::NoMapType;
}
PageDirectoryEntry *Virtual::GetPDE(void *VirtualAddress, MapType Type)
{
uintptr_t Address = (uintptr_t)VirtualAddress;
Address &= 0xFFFFFFFFFFFFF000;
PageMapIndexer Index = PageMapIndexer(Address);
PageDirectoryEntry *PDE = &this->Table->Entries[Index.PDEIndex];
if (PDE->Present)
return PDE;
return nullptr;
}
PageTableEntry *Virtual::GetPTE(void *VirtualAddress, MapType Type)
{
uintptr_t Address = (uintptr_t)VirtualAddress;
Address &= 0xFFFFFFFFFFFFF000;
PageMapIndexer Index = PageMapIndexer(Address);
PageDirectoryEntry *PDE = &this->Table->Entries[Index.PDEIndex];
if (!PDE->Present)
return nullptr;
PageTableEntryPtr *PTEPtr = (PageTableEntryPtr *)(PDE->GetAddress() << 12);
PageTableEntry *PTE = &PTEPtr->Entries[Index.PTEIndex];
if (PTE->Present)
return PTE;
return nullptr;
}
void Virtual::Map(void *VirtualAddress, void *PhysicalAddress, uint64_t Flags, MapType Type)
{
SmartLock(this->MemoryLock);
@ -159,7 +214,7 @@ namespace Memory
PageDirectoryEntry *PDE = &this->Table->Entries[Index.PDEIndex];
if (!PDE->Present)
{
error("Page %#lx not present", PDE->GetAddress());
warn("Page %#lx not present", PDE->GetAddress());
return;
}
@ -173,7 +228,7 @@ namespace Memory
PageTableEntry PTE = PTEPtr->Entries[Index.PTEIndex];
if (!PTE.Present)
{
error("Page %#lx not present", PTE.GetAddress());
warn("Page %#lx not present", PTE.GetAddress());
return;
}