From 1b03bcecac1276b486e17daf0384de7fa203d974 Mon Sep 17 00:00:00 2001 From: Fabian Imhof Date: Sun, 20 Oct 2024 12:57:21 +0000 Subject: create active_page_table --- .../x86_64/src/memory/paging/active_page_table.cpp | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 arch/x86_64/src/memory/paging/active_page_table.cpp (limited to 'arch/x86_64/src') diff --git a/arch/x86_64/src/memory/paging/active_page_table.cpp b/arch/x86_64/src/memory/paging/active_page_table.cpp new file mode 100644 index 0000000..eb85c34 --- /dev/null +++ b/arch/x86_64/src/memory/paging/active_page_table.cpp @@ -0,0 +1,31 @@ +#include "arch/memory/paging/active_page_table.hpp" + +namespace teachos::arch::memory::paging +{ + struct active_page_table + { + auto create(page_table * level4_page_table) -> active_page_table * + { + if (instantiated) + { + return this; + } + + instantiated = true; + return &active_page_table(level4_page_table); + } + + active_page_table(const active_page_table &) = delete; + active_page_table & operator=(const active_page_table &) = delete; + + private: + active_page_table(page_table * level4_page_table) + : level4_page_table(level4_page_table) + { + // Nothing to do + } + + bool instantiated = false; + page_table * level4_page_table; + }; +} // namespace teachos::arch::memory::paging \ No newline at end of file -- cgit v1.2.3