Luna/kernel/include/memory/VMM.h

#pragma once
#include "memory/Paging.h"

namespace Paging
{
    enum Flags
    {
        ReadWrite = 1 << 0,
        User = 1 << 1,
        Execute = 1 << 2
    };
    class VirtualMemoryManager
    {
      public:
        void init(); // fetch page table from cr3
        void init(PageTable* cr3);

        void map(uint64_t virtualAddress, uint64_t physicalAddress, int flags);
        void remap(uint64_t virtualAddress, int flags);
        void unmap(uint64_t virtualAddress);
        uint64_t getPhysical(uint64_t virtualAddress);
        uint64_t getFlags(uint64_t virtualAddress);

      private:
        PageTable* PML4;
    };
}

extern Paging::VirtualMemoryManager kernelVMM;