From af8a516fc22865abd80d6e26f1541fa3d6bebfdc Mon Sep 17 00:00:00 2001
From: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
Date: Thu, 9 May 2024 00:42:44 +0200
Subject: MHR-23: :boom:, refactors.

- Move NewBoot to /Boot, thus making Kernel directory only containing the kernel.

Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
---
 Kernel/NewKit/PageManager.hpp | 81 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 Kernel/NewKit/PageManager.hpp

(limited to 'Kernel/NewKit/PageManager.hpp')

diff --git a/Kernel/NewKit/PageManager.hpp b/Kernel/NewKit/PageManager.hpp
new file mode 100644
index 00000000..7706c9f4
--- /dev/null
+++ b/Kernel/NewKit/PageManager.hpp
@@ -0,0 +1,81 @@
+// a way to create and find our pages.
+// I'm thinking about a separate way of getting a paged area.
+
+/* -------------------------------------------
+
+    Copyright SoftwareLabs
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Defines.hpp>
+#include <NewKit/PageAllocator.hpp>
+#include <NewKit/Ref.hpp>
+
+#ifndef kBadAddress
+#define kBadAddress (0)
+#endif // #ifndef kBadAddress
+
+namespace NewOS
+{
+	class PageManager;
+
+	class PTEWrapper final
+	{
+	public:
+		explicit PTEWrapper(Boolean Rw = false, Boolean User = false, Boolean ExecDisable = false, UIntPtr Address = 0);
+
+		~PTEWrapper();
+
+		PTEWrapper& operator=(const PTEWrapper&) = default;
+		PTEWrapper(const PTEWrapper&)			 = default;
+
+	public:
+		const UIntPtr VirtualAddress();
+
+		void		NoExecute(const bool enable = false);
+		const bool& NoExecute();
+
+		bool Reclaim();
+		bool Shareable();
+		bool Present();
+		bool Access();
+
+	private:
+		Boolean fRw;
+		Boolean fUser;
+		Boolean fExecDisable;
+		UIntPtr fVirtAddr;
+		Boolean fCache;
+		Boolean fShareable;
+		Boolean fWt;
+		Boolean fPresent;
+		Boolean fAccessed;
+
+	private:
+		friend class PageManager;
+		friend class Pmm;
+	};
+
+	struct PageManager final
+	{
+	public:
+		PageManager()  = default;
+		~PageManager() = default;
+
+		PageManager& operator=(const PageManager&) = default;
+		PageManager(const PageManager&)			   = default;
+
+	public:
+		PTEWrapper Request(Boolean Rw, Boolean User, Boolean ExecDisable, SizeT Sz);
+		bool	   Free(Ref<PTEWrapper*>& wrapper);
+
+	private:
+		void FlushTLB(UIntPtr VirtAddr);
+
+	private:
+		friend PTEWrapper;
+		friend class Pmm;
+	};
+} // namespace NewOS
-- 
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