From 5a8659adaa54ce9514db72d1e40f33dec88605ff Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Matteo=20Gm=C3=BCr?= Date: Thu, 10 Apr 2025 08:06:50 +0000 Subject: Move interrupt count into seperate variable --- .../interrupt_descriptor_table/interrupt_descriptor_table.cpp | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'arch/x86_64/src/context_switching') diff --git a/arch/x86_64/src/context_switching/interrupt_descriptor_table/interrupt_descriptor_table.cpp b/arch/x86_64/src/context_switching/interrupt_descriptor_table/interrupt_descriptor_table.cpp index 9b62110..80f01a8 100644 --- a/arch/x86_64/src/context_switching/interrupt_descriptor_table/interrupt_descriptor_table.cpp +++ b/arch/x86_64/src/context_switching/interrupt_descriptor_table/interrupt_descriptor_table.cpp @@ -8,17 +8,20 @@ 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 uint8_t RESERVED_INTERRUPT_COUNT = 32U; + auto create_interrupt_descriptor_table() -> interrupt_descriptor_table { - // Only account for the reserved Vectors for now (0 - 31) - interrupt_descriptor_table interrupt_descriptor_table{32}; + interrupt_descriptor_table interrupt_descriptor_table{RESERVED_INTERRUPT_COUNT}; uint64_t offset = reinterpret_cast(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 < 32; i++) + for (std::size_t i = 0; i < interrupt_descriptor_table.size(); i++) { interrupt_descriptor_table.at(i) = {selector, ist, flags, offset}; } -- cgit v1.2.3