From 1db039ca1c67e8daba8b5ec6d5158cb2110e1410 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Fri, 28 Nov 2025 16:06:15 +0100
Subject: x86_64: port basic page and page table abstractions

---
 arch/x86_64/src/memory/paging_root.cpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 arch/x86_64/src/memory/paging_root.cpp

(limited to 'arch/x86_64/src/memory/paging_root.cpp')

diff --git a/arch/x86_64/src/memory/paging_root.cpp b/arch/x86_64/src/memory/paging_root.cpp
new file mode 100644
index 0000000..1234308
--- /dev/null
+++ b/arch/x86_64/src/memory/paging_root.cpp
@@ -0,0 +1,19 @@
+#include "x86_64/memory/paging_root.hpp"
+
+#include <cstdint>
+
+namespace teachos::memory::x86_64
+{
+
+  namespace
+  {
+    constexpr auto PML_RECURSIVE_BASE = std::uintptr_t{0177777'776'776'776'776'0000uz};
+  }
+
+  auto paging_root::get() -> paging_root &
+  {
+    auto pml4_address = std::bit_cast<paging_root *>(PML_RECURSIVE_BASE);
+    return *pml4_address;
+  }
+
+}  // namespace teachos::memory::x86_64
\ No newline at end of file
-- 
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