diff options
Diffstat (limited to 'arch/x86_64/include')
| -rw-r--r-- | arch/x86_64/include/arch/context_switching/descriptor_table/global_descriptor_table_pointer.hpp | 20 | ||||
| -rw-r--r-- | arch/x86_64/include/arch/kernel/cpu/lgdt.hpp | 8 |
2 files changed, 26 insertions, 2 deletions
diff --git a/arch/x86_64/include/arch/context_switching/descriptor_table/global_descriptor_table_pointer.hpp b/arch/x86_64/include/arch/context_switching/descriptor_table/global_descriptor_table_pointer.hpp index 06f40fe..ed17be3 100644 --- a/arch/x86_64/include/arch/context_switching/descriptor_table/global_descriptor_table_pointer.hpp +++ b/arch/x86_64/include/arch/context_switching/descriptor_table/global_descriptor_table_pointer.hpp @@ -18,8 +18,24 @@ namespace teachos::arch::context_switching::descriptor_table */ struct [[gnu::packed]] global_descriptor_table_pointer { - uint16_t table_length; ///< The amount of segment descriptor entries in the global descriptor table - 1. - global_descriptor_table * address; ///< Pointer to the GDT base address. + /** + * @brief Default constructor. + */ + global_descriptor_table_pointer() = default; + + /** + * @brief Constructor. + */ + global_descriptor_table_pointer(uint16_t table_length, global_descriptor_table * address); + + /** + * @brief Defaulted three-way comparsion operator. + */ + auto operator<=>(global_descriptor_table_pointer const & other) const -> std::strong_ordering = default; + + private: + uint16_t table_length = {}; ///< The amount of segment descriptor entries in the global descriptor table - 1. + global_descriptor_table * address = {}; ///< Non-owning pointer to the GDT base address. }; } // namespace teachos::arch::context_switching::descriptor_table diff --git a/arch/x86_64/include/arch/kernel/cpu/lgdt.hpp b/arch/x86_64/include/arch/kernel/cpu/lgdt.hpp index b0b2048..85e2949 100644 --- a/arch/x86_64/include/arch/kernel/cpu/lgdt.hpp +++ b/arch/x86_64/include/arch/kernel/cpu/lgdt.hpp @@ -8,6 +8,14 @@ namespace teachos::arch::kernel::cpu { + + /** + * @brief Returns the value in the GDTR register. + * + * @return Value of GDTR register. + */ + auto store_global_descriptor_table() -> context_switching::descriptor_table::global_descriptor_table_pointer; + /** * @brief Loads the global_descriptor_table_pointer into the global descriptor table register (GDTR). */ |