From e0a7e242f81fb4356588a9943affc0dec5b3d4f9 Mon Sep 17 00:00:00 2001
From: Bananymous <bananymousosq@gmail.com>
Date: Tue, 16 May 2023 00:25:30 +0300
Subject: [PATCH] Kernel: Add MMUScope

This disables interrupts and loads specified mmu for the
scope it lives in
---
 kernel/include/kernel/Memory/MMUScope.h | 30 +++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 kernel/include/kernel/Memory/MMUScope.h

diff --git a/kernel/include/kernel/Memory/MMUScope.h b/kernel/include/kernel/Memory/MMUScope.h
new file mode 100644
index 00000000..5ed43cd6
--- /dev/null
+++ b/kernel/include/kernel/Memory/MMUScope.h
@@ -0,0 +1,30 @@
+#pragma once
+
+#include <kernel/CriticalScope.h>
+#include <kernel/Memory/MMU.h>
+
+namespace Kernel
+{
+
+	class MMUScope
+	{
+	public:
+		MMUScope(MMU& mmu)
+			: m_old(MMU::current())
+			, m_temp(mmu)
+		{
+			if (&m_old != &m_temp)
+				m_temp.load();
+		}
+		~MMUScope()
+		{
+			if (&m_old != &m_temp)
+				m_old.load();
+		}
+	private:
+		CriticalScope m_scope;
+		MMU& m_old;
+		MMU& m_temp;
+	};
+
+}
\ No newline at end of file