Awesome GitHub RepositoriesVirtual Device Drivers

Firecracker is a virtual machine monitor that leverages hardware-assisted virtualization to create and manage isolated execution environments. It functions as a lightweight runtime designed to launch virtual machines with minimal memory overhead and near-instantaneous startup times, providing the security of traditional hardware virtualization with the efficiency of containerized workloads. The project distinguishes itself through a security-focused architecture that enforces strict process boundaries using system-level barriers and restricted user privileges. It minimizes the attack surface

UTM is a comprehensive virtualization suite that provides a unified interface for running guest operating systems on host hardware. It functions as a cross-platform system emulator and hypervisor, coordinating both hardware-accelerated virtualization and software-based instruction emulation to execute diverse operating systems. By leveraging native kernel-level virtualization frameworks, the software achieves near-native performance while maintaining strict security through sandboxed process isolation. The project distinguishes itself by enabling full-featured desktop operating systems to run

BetterDisplay is a comprehensive display management utility and virtual display engine designed to provide granular control over monitor configurations. It functions as a low-level hardware controller that interacts directly with graphics drivers and system APIs to override manufacturer limitations, enabling users to manage resolution, scaling, brightness, and color profiles across complex multi-monitor setups. The project distinguishes itself through its ability to generate synthetic virtual displays and inject custom framebuffers into the graphics pipeline, allowing for arbitrary resolution

This project provides a complete Linux environment for mobile devices by emulating an x86 architecture and translating system calls into native mobile operations. It functions as a terminal emulator that allows users to run standard command-line utilities, manage software packages, and execute unmodified Linux binaries directly on their mobile hardware. The environment distinguishes itself through its ability to maintain persistent background execution, preventing the mobile operating system from suspending shell tasks or active processes. It supports a containerized approach to the root file

BlackHole is a system-level virtual audio driver designed for macOS that enables real-time routing of digital audio signals between applications and hardware. By functioning as a kernel-level extension, it creates a virtual loopback interface that allows users to transfer sound streams across software environments without the need for physical cables or external hardware. The software distinguishes itself through its ability to aggregate multiple physical and virtual audio sources into a single, unified interface. This abstraction layer supports complex signal management, including the mirror

NVIDIA Docker is a container runtime wrapper that enables the use of host-level graphics processing units within isolated container environments. It functions as a containerized GPU orchestrator, mapping physical hardware resources into virtualized environments to support high-performance computing and machine learning workloads. The project provides a toolkit that facilitates integration between containerized applications and host-level graphics hardware. By utilizing a pre-start hook to intercept container creation, the runtime injects necessary device drivers and libraries into the isolate

This project is a bare-metal operating system developed for ARM64 architecture. It serves as a low-level implementation of kernel engineering, focusing on the fundamental construction of an OS from the hardware level up. The system is distinguished by its comprehensive approach to ARM64 processor control, featuring a red-black tree task scheduler and a hierarchical page table system for virtual memory management. It implements a sophisticated privilege model that handles transitions between kernel and user modes, ensuring process isolation through address space splitting and exception level m

Virtual-Display-Driver is a kernel-level driver for Windows that emulates physical monitors and audio devices. It serves as a virtual monitor emulator, headless server display emulator, and virtual audio device driver to enable extended desktop space and sound routing on systems without physical hardware connections. The project enables the simulation of monitors with custom resolutions, refresh rates, and identification profiles, including support for High Dynamic Range output. It also provides software-defined audio interfaces to simulate virtual microphones and speakers. The software cove

ArchWSL is a pre-configured Arch Linux distribution designed to run within the Windows Subsystem for Linux. It provides a method for deploying a functional Linux environment through root filesystem bootstrapping via application packages or zip archives. The project includes a dedicated instance manager for backing up, restoring, and managing multiple isolated Linux environment instances. It also features a compatibility patch for the standard C library and core system libraries to ensure software runs on older kernel versions. The system covers service management through native or emulated s

vphone-cli is a command line interface for booting virtual iOS devices using Apple's native virtualization framework. It provides a sandboxed virtual mobile environment and tools for executing iOS system images on a host operating system. The project includes a firmware flashing utility capable of building signed ramdisks and applying custom firmware patches to virtual device boot chains. It facilitates the installation of custom firmware variants to remove system security restrictions. The toolset covers virtual device provisioning through system image restoration and security blob retrieva

libusb is a cross-platform user-space library that provides a consistent C API for discovering, configuring, and communicating with USB devices from applications. It abstracts operating-system-specific USB driver details behind a single interface that works on Linux, macOS, Windows, and other platforms, enabling developers to write portable USB code without platform-specific knowledge. The library supports both synchronous and asynchronous I/O models for USB transfers. Synchronous operations block the calling thread until a transfer completes, offering a straightforward sequential programming

LXD is a unified platform for managing both system containers and virtual machines through a single REST API and command-line interface. It provides a programmatic HTTP interface for controlling the full lifecycle of instances, enabling automation and integration with external tools. The system runs unprivileged containers with per-instance UID/GID mappings, seccomp filters, and AppArmor profiles for kernel-level isolation, while supporting multiple storage backends including directory, Btrfs, LVM, ZFS, Ceph, LINSTOR, and TrueNAS through a unified driver interface. The platform distinguishes

Cloud Hypervisor is a Rust-based hypervisor and KVM virtual machine monitor designed to execute 64-bit guest operating systems. It functions as a user-space virtual machine manager that employs a minimal emulation layer to reduce memory overhead and latency for cloud workloads. The project distinguishes itself through the use of a memory-safe language to implement a virtio device emulator and a user-space device model. It provides a standardized web API for managing virtual machine lifecycles and resource configurations. The platform covers broad virtualization capabilities, including the em

Incus is a unified orchestration platform for managing system containers, OCI application containers, and virtual machines through a single control plane. It brings together cluster infrastructure management, secure multi-tenancy, software-defined networking, and pluggable storage backend orchestration into one cohesive system exposed via a full REST API and command-line interface. What distinguishes Incus is its ability to run multiple instance types side by side—full Linux system containers, OCI application containers, and QEMU virtual machines—all managed with consistent tooling. Networkin

v4l2loopback is a Linux kernel video driver that creates virtual video devices to route video streams between applications. It functions as a software-defined video source, simulating physical hardware to provide a standard video input for applications that require a capture device. The project enables video stream routing by piping data from one process to another using the Video4Linux2 standard. It includes mechanisms for device capability masking and conditional reporting to bypass strict hardware detection requirements in external software. The driver provides tools for virtual camera si

embedded-notes هي مجموعة من أدلة الدراسة التقنية وملاحظات التطوير التي تركز على Linux المضمن، وداخلية نواة Linux، وبرمجة C. تعمل كمرجع لتطوير الأنظمة المضمنة ومورد تحضيري للمقابلات التقنية في هذا المجال. يوفر المشروع وثائق مفصلة حول كتابة برامج تشغيل الأجهزة، وإدارة الذاكرة الافتراضية، وفهم داخلية النواة. كما يتضمن أدلة حول بروتوكولات شبكة IoT، مثل MQTT وTCP/IP، ويحدد التفاصيل المعمارية لهياكل الرقائق والأجهزة الطرفية. تغطي المادة سطحاً واسعاً من برمجة الأنظمة، بما في ذلك إدارة الذاكرة اليدوية، وإدارة دورة حياة العمليات، وتنفيذ مفاهيم نظام التشغيل في الوقت الفعلي. كما تتضمن مراجع للأدوات منخفضة المستوى، مثل التجميع المتقاطع لـ ARM، وتحليل الثنائيات، وكتابة نصوص shell لأتمتة البناء.

HAMi is a hardware orchestration and virtualization system designed to manage accelerators within Kubernetes. It functions as a device plugin that partitions physical hardware into isolated virtual slices, enabling multiple containers to share a single device through enforced memory limits and compute quotas. The project provides a virtualization manager and a heterogeneous compute scheduler that distributes tasks across diverse accelerator types. It uses packing and topology policies to optimize workload placement and allows for specific hardware targeting using unique device identifiers. T

darkriscv is a collection of tools and projects for RISC-V processor implementation, hardware debugging, and automated FPGA synthesis. It provides a hardware design that implements a RISC-V processor core and system components for deployment on programmable logic. The project includes a hardware debugger with a command-line interface for verifying processor state by manipulating registers and dumping memory on a hardware target. It also features a set of scripts and project files to automate the synthesis and programming of hardware designs within a Linux environment. The codebase covers har

توفر هذه المكتبة مجموعة من التجريدات منخفضة المستوى للتفاعل مع الأجهزة الطرفية في أجهزة Raspberry Pi باستخدام لغة البرمجة Rust. تعمل المكتبة كواجهة آمنة من حيث النوع (type-safe) للتحكم في الدبابيس الفيزيائية وإدارة الاتصال بالمكونات الإلكترونية الخارجية والمستشعرات. يتميز المشروع باستخدام تجريدات وقت التجميع (compile-time) التي تربط استدعاءات الدوال عالية المستوى مباشرة بتعليمات الأجهزة، مما يضمن حداً أدنى من الحمل التشغيلي. كما توفر وصولاً متسقاً إلى الأجهزة من خلال تغليف واجهات الأجهزة على مستوى النواة والسجلات المعينة في الذاكرة في تجريدات آمنة تعتمد على السمات (traits)، مما يسمح بتنفيذ برامج تشغيل قابلة للتبديل. تغطي المكتبة مجموعة واسعة من قدرات تكامل الأجهزة، بما في ذلك إدارة بروتوكولات الاتصال التسلسلي القياسية مثل I2C وSPI وUART. كما تدعم تعديل عرض النبضة (PWM) والتحكم في دبابيس الإدخال والإخراج للأغراض العامة (GPIO)، مما يتيح دمج المستشعرات الصناعية وتشغيل المشغلات. يتم توزيع البرنامج كـ crate، مما يوفر نهجاً منظماً لتطوير الأنظمة المدمجة والربط بين الأجهزة على أجهزة الكمبيوتر ذات اللوحة الواحدة التي تعمل بنظام Linux.