junyaU / time-measurement-using-Local-APIC

Time Measurement Using Local APIC Timer

This is a simple operating system that demonstrates time measurement using the Local APIC Timer and ACPI PM Timer.
The Local APIC Timer used here conforms to the use of xAPIC.

Demo

2023-03-26.14.56.27.mov

Features

The operating system generates an interrupt every second by measuring the frequency of the Local APIC Timer using ACPI PM Timer.

Requirements

• qemu-system-x86_64 7.2.0
• C++17
• Clang 15.0.7
• LLD 15.0.7
• EDKⅡ CLANGPDB
• GDB 12.1

Note

This repository is created for internal study sessions.