GDT, page frame allocator

kernel/src/Efi/UEFI.hpp

@@ -0,0 +1,42 @@
+/*
+    * UEFI.hpp
+    * Copyright (c) 2025 Daniel Hammer
+*/
+
+#pragma once
+#include <cstdint>
+
+namespace Efi {
+    typedef void* EFI_HANDLE;
+
+    struct TableHeader {
+        std::uint64_t Signature;
+        std::uint32_t Revision;
+        std::uint32_t HeaderSize;
+        std::uint32_t CRC32;
+        std::uint32_t Reserved;
+    }__attribute__((packed));
+
+    struct SystemTable {
+        TableHeader Header;
+        void* FirmwareVendor; // Pointer to a CHAR16 string of the fw vendor name string
+        std::uint32_t FirmwareRevision;
+        
+        EFI_HANDLE ConsoleInHandle;
+        void* ConIn;
+        EFI_HANDLE ConsoleOutHandle;
+        void* ConOut;
+
+        EFI_HANDLE StandardErrorHandle;
+        void* StdErr;
+
+        // Jackpot
+        void *RuntimeServices;
+
+        void *BootServices;
+
+        std::uint64_t NumberOfTableEntries;
+
+        void *ConfigurationTable;
+    };
+};