diff options
Diffstat (limited to 'arch/x86_64/src')
| -rw-r--r-- | arch/x86_64/src/memory/paging/page_table.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86_64/src/memory/paging/page_table.cpp b/arch/x86_64/src/memory/paging/page_table.cpp index a39c235..eb11810 100644 --- a/arch/x86_64/src/memory/paging/page_table.cpp +++ b/arch/x86_64/src/memory/paging/page_table.cpp @@ -100,14 +100,15 @@ namespace teachos::arch::memory::paging auto page_table_handle::is_empty() const -> bool { return table->is_empty(); } - auto page_table_handle::next_table(std::size_t table_index) -> std::optional<page_table_handle> + auto page_table_handle::next_table(std::size_t table_index) const -> std::optional<page_table_handle> { exception_handling::assert(table_level != page_table_handle::LEVEL1, "[Page Table] Attempted to call next_table on level 1 page table"); auto const next_table = table->next_table(table_index); if (next_table.has_value()) { - return page_table_handle{next_table.value(), --table_level}; + auto const new_level = static_cast<page_table_handle::level>(table_level - 1); + return page_table_handle{next_table.value(), new_level}; } return std::nullopt; } |