diff options
Diffstat (limited to 'arch/x86_64/pre/src/context_switching')
6 files changed, 0 insertions, 144 deletions
diff --git a/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/gate_descriptor.cpp b/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/gate_descriptor.cpp deleted file mode 100644 index 28f289c..0000000 --- a/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/gate_descriptor.cpp +++ /dev/null @@ -1,24 +0,0 @@ -#include "arch/context_switching/interrupt_descriptor_table/gate_descriptor.hpp" - -namespace teachos::arch::context_switching::interrupt_descriptor_table -{ - gate_descriptor::gate_descriptor(uint128_t flags) - : _offset_1(flags) - , _selector(flags >> 19U, flags >> 16U) - , _ist(flags >> 32U) - , _flags(flags >> 40U) - , _offset_2(flags >> 48U) - { - // Nothing to do. - } - - gate_descriptor::gate_descriptor(segment_selector selector, ist_offset ist, idt_flags flags, uint64_t offset) - : _offset_1(offset) - , _selector(selector) - , _ist(ist) - , _flags(flags) - , _offset_2(offset >> 16U) - { - // Nothing to do. - } -} // namespace teachos::arch::context_switching::interrupt_descriptor_table diff --git a/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/idt_flags.cpp b/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/idt_flags.cpp deleted file mode 100644 index f3b9d5e..0000000 --- a/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/idt_flags.cpp +++ /dev/null @@ -1,20 +0,0 @@ -#include "arch/context_switching/interrupt_descriptor_table/idt_flags.hpp" - -namespace teachos::arch::context_switching::interrupt_descriptor_table -{ - idt_flags::idt_flags(uint8_t flags) - : _flags(flags) - { - // Nothing to do. - } - - auto idt_flags::contains_flags(std::bitset<8U> other) const -> bool - { - return (std::bitset<8U>{_flags} & other) == other; - } - - auto idt_flags::operator|=(std::bitset<8U> other) -> void - { - _flags |= other.to_ulong(); - } -} // namespace teachos::arch::context_switching::interrupt_descriptor_table diff --git a/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/interrupt_descriptor_table.cpp b/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/interrupt_descriptor_table.cpp deleted file mode 100644 index 8640385..0000000 --- a/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/interrupt_descriptor_table.cpp +++ /dev/null @@ -1,53 +0,0 @@ -#include "arch/context_switching/interrupt_descriptor_table/interrupt_descriptor_table.hpp" - -#include "arch/exception_handling/assert.hpp" -#include "arch/interrupt_handling/generic_interrupt_handler.hpp" -#include "arch/kernel/cpu/idtr.hpp" - -namespace teachos::arch::context_switching::interrupt_descriptor_table -{ - namespace - { - /// @brief Amount of currently reserved interrupt indicies. - /// See https://wiki.osdev.org/Interrupt_Descriptor_Table#IDT_items for more information. - constexpr uint16_t RESERVED_INTERRUPT_COUNT = 256U; - - auto create_interrupt_descriptor_table() -> interrupt_descriptor_table - { - interrupt_descriptor_table interrupt_descriptor_table{RESERVED_INTERRUPT_COUNT}; - - uint64_t offset = reinterpret_cast<uint64_t>(interrupt_handling::generic_interrupt_handler); - segment_selector selector{1U, segment_selector::REQUEST_LEVEL_KERNEL}; - ist_offset ist{0U}; - idt_flags flags{idt_flags::DESCRIPTOR_LEVEL_KERNEL | idt_flags::INTERRUPT_GATE | idt_flags::PRESENT}; - - for (std::size_t i = 0; i < interrupt_descriptor_table.size(); i++) - { - interrupt_descriptor_table.at(i) = {selector, ist, flags, offset}; - } - - return interrupt_descriptor_table; - } - } // namespace - - auto get_or_create_interrupt_descriptor_table() -> interrupt_descriptor_table & - { - // Interrupt Descriptor Table needs to be kept alive - interrupt_descriptor_table static idt = create_interrupt_descriptor_table(); - return idt; - } - - auto update_interrupt_descriptor_table_register() -> void - { - decltype(auto) idt = get_or_create_interrupt_descriptor_table(); - - interrupt_descriptor_table_pointer idt_pointer{static_cast<uint16_t>((idt.size() * sizeof(gate_descriptor)) - 1), - idt.data()}; - kernel::cpu::load_interrupt_descriptor_table(idt_pointer); - - auto const stored_gdt_pointer = kernel::cpu::store_interrupt_descriptor_table(); - arch::exception_handling::assert( - idt_pointer == stored_gdt_pointer, - "[Interrupt Descriptor Table] Loaded IDTR value is not the same as the stored value."); - } -} // namespace teachos::arch::context_switching::interrupt_descriptor_table diff --git a/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/interrupt_descriptor_table_pointer.cpp b/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/interrupt_descriptor_table_pointer.cpp deleted file mode 100644 index 7bcbae6..0000000 --- a/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/interrupt_descriptor_table_pointer.cpp +++ /dev/null @@ -1,13 +0,0 @@ -#include "arch/context_switching/interrupt_descriptor_table/interrupt_descriptor_table_pointer.hpp" - -namespace teachos::arch::context_switching::interrupt_descriptor_table -{ - interrupt_descriptor_table_pointer::interrupt_descriptor_table_pointer(uint16_t table_length, - gate_descriptor * address) - : table_length(table_length) - , address(address) - { - // Nothing to do. - } - -} // namespace teachos::arch::context_switching::interrupt_descriptor_table diff --git a/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/ist_offset.cpp b/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/ist_offset.cpp deleted file mode 100644 index a70e75d..0000000 --- a/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/ist_offset.cpp +++ /dev/null @@ -1,10 +0,0 @@ -#include "arch/context_switching/interrupt_descriptor_table/ist_offset.hpp" - -namespace teachos::arch::context_switching::interrupt_descriptor_table -{ - ist_offset::ist_offset(uint8_t index) - : _ist(index) - { - // Nothing to do. - } -} // namespace teachos::arch::context_switching::interrupt_descriptor_table diff --git a/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/segment_selector.cpp b/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/segment_selector.cpp deleted file mode 100644 index 25ba859..0000000 --- a/arch/x86_64/pre/src/context_switching/interrupt_descriptor_table/segment_selector.cpp +++ /dev/null @@ -1,24 +0,0 @@ -#include "arch/context_switching/interrupt_descriptor_table/segment_selector.hpp" - -namespace teachos::arch::context_switching::interrupt_descriptor_table -{ - auto segment_selector::contains_flags(std::bitset<3U> other) const -> bool - { - return (std::bitset<3U>{_flags} & other) == other; - } - - auto segment_selector::get_index() const -> uint16_t - { - return _index; - } - - auto segment_selector::operator|=(std::bitset<3U> other) -> void - { - _flags |= other.to_ulong(); - } - - segment_selector::operator uint16_t() const - { - return *reinterpret_cast<uint16_t const *>(this); - } -} // namespace teachos::arch::context_switching::interrupt_descriptor_table |