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feat(vmm): Add Paging support

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This commit is contained in:
Daniel Hammer
2025-04-17 21:54:25 +02:00
parent 0b77abfc23
commit 2515149f28
14 changed files with 266 additions and 11 deletions
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kernel/src/Main.cpp
+19 -2
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@@ -25,6 +25,7 @@
#include <Memory/PageFrameAllocator.hpp>
#include <Memory/HHDM.hpp>
#include <Io/IoPort.hpp>
#include <Memory/Paging.hpp>
using namespace Kt;
@@ -41,6 +42,9 @@ KernelErrorStream kerr{};
extern void (*__init_array[])();
extern void (*__init_array_end[])();
extern "C" uint64_t KernelStartSymbol;
extern "C" uint64_t KernelEndSymbol;
extern "C" void kmain() {
if (LIMINE_BASE_REVISION_SUPPORTED == false) {
Hal::Halt();
@@ -80,12 +84,12 @@ extern "C" void kmain() {
Memory::HHDMBase = hhdm_offset;
if (memmap_request.response != nullptr) {
Kt::KernelLogStream(OK, "MemoryManagement") << "Creating PageFrameAllocator";
Kt::KernelLogStream(OK, "Mem") << "Creating PageFrameAllocator";
Memory::PageFrameAllocator pmm(Memory::Scan(memmap_request.response));
Memory::g_pfa = &pmm;
Kt::KernelLogStream(OK, "MemoryManagement") << "Creating HeapAllocator";
Kt::KernelLogStream(OK, "Mem") << "Creating HeapAllocator";
Memory::HeapAllocator heap{};
Memory::g_heap = &heap;
@@ -95,9 +99,22 @@ extern "C" void kmain() {
Panic("System memory map missing!", nullptr);
}
#if defined (__x86_64__)
Hal::IDTInitialize();
#endif
// auto kaddr_request_response = kernel_address_request.response;
Memory::VMM::Paging g_paging{};
g_paging.Init((uint64_t)&KernelStartSymbol, ((uint64_t)&KernelEndSymbol - (uint64_t)&KernelStartSymbol));
// g_paging.Map(0xcfc0000, 0xcfc0000);
// kout << "0x" << base::hex << Memory::VMM::GetCR3();
kout << "0x" << base::hex << 0xdeadbeef << "\n";
kout << "0x" << base::hex << Memory::HHDM(0xdeadbeef) << "\n";
Hal::Halt();
}