kern: begin skeletoning page table types

libraries/libmesosphere/include/mesosphere/kern_k_page_table_base.hpp

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2018-2020 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+#include <mesosphere/kern_common.hpp>
+#include <mesosphere/kern_select_page_table_impl.hpp>
+#include <mesosphere/kern_k_light_lock.hpp>
+#include <mesosphere/kern_k_page_group.hpp>
+#include <mesosphere/kern_k_memory_manager.hpp>
+#include <mesosphere/kern_k_memory_layout.hpp>
+
+namespace ams::kern {
+
+    class KPageTableBase {
+        NON_COPYABLE(KPageTableBase);
+        NON_MOVEABLE(KPageTableBase);
+        private:
+            /* TODO: All other members. */
+            /* There are a substantial number of them. */
+            KPageTableImpl impl;
+        public:
+            constexpr KPageTableBase() : impl() { /* ... */ }
+
+            Result InitializeForKernel(bool is_64_bit, void *table, KVirtualAddress start, KVirtualAddress end);
+
+            void Finalize();
+        public:
+            static ALWAYS_INLINE KVirtualAddress GetLinearVirtualAddress(KPhysicalAddress addr) {
+                return KMemoryLayout::GetLinearVirtualAddress(addr);
+            }
+
+            static ALWAYS_INLINE KPhysicalAddress GetLinearPhysicalAddress(KVirtualAddress addr) {
+                return KMemoryLayout::GetLinearPhysicalAddress(addr);
+            }
+    };
+
+}