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MVisor: A mini x86 hypervisor

Goal

  1. A minimal hypervisor based on KVM and x86 (replace QEMU)
  2. A limited number of emulated devices (support plugins in later version)
  3. Linux and Windows as guest VMs
  4. VFIO (especially vGPU) and migration
  5. Extremely stable and high performance

Screenshot

Ubuntu

vGPU

Multimedia

Roadmap And Current Status

What's supported now:

Basic functions

  1. 440FX ✅ / Q35 Chipset ✅
  2. SeaBIOS ✅ OVMF ✅
  3. Memory Region Management ✅
  4. IOPort Management ✅
  5. Devices Management ✅
  6. RTC (CMOS) ✅
  7. PS/2 ✅
  8. PCI ISA ICH9-LPC ✅
  9. QEMU CFG ✅
  10. Legacy DMA ✅
  11. IDE ✅ / AHCI ✅
  12. Floppy Disk ✅
  13. Serial Port ✅
  14. VGA / VBE ✅
  15. Option Roms ✅ / SMBIOS ✅ / ACPI Table ✅
  16. Boot DOS ✅
  17. Boot OS (Win98 to Win11 / DOS / Ubuntu / macOS Sonoma) ✅
  18. QCOW2 ✅

Multimedia & Networking

  1. Virtio (Console ✅ / Block ✅ / Net ✅ / VirtioFS ✅ / VGPU ✅ / CUDA ✅ / Balloon)
  2. SpiceAgent ✅
  3. QemuGuestAgent ✅
  4. Qxl ✅
  5. Audio (ICH9-HDA / AC97) ✅
  6. Tap network ✅
  7. User network ✅
  8. VFIO (mdev & passthrough) ✅
  9. Samba
  10. USB 1.0 UHCI ✅ / USB 3.0 XHCI ✅ / USB Tablet ✅ / USB Keyboard ✅ / USB Midi ✅ / USB Wacom ✅

Hyper-V & Migration

  1. CPU migration ✅
  2. VFIO migration ✅
  3. Migration to sparse files ✅
  4. Hyper-V enlightenments ✅
  5. Live migration ✅

Compile & Run

For RockyLinux 9.3,

dnf install epel-release gdb cmake gcc-c++ acpica-tools
dnf --enablerepo=devel install -y protobuf-compiler protobuf-devel glib2-devel yaml-cpp-devel pixman-devel libzstd-devel zlib-devel

# If SDL enabled
dnf --enablerepo=devel install -y SDL2-devel alsa-lib-devel

For Debian 12,

apt install meson gdb cmake build-essential g++ acpica-tools
apt install protobuf-compiler libprotobuf-dev libglib2.0-dev libyaml-cpp-dev libpixman-1-dev libzstd-dev zlib1g-dev

# If SDL enabled
apt install libsdl2-dev libasound2-dev

Compile and Run

meson setup build -Dsdl=true # SDL is disabled by default
meson compile -C build

./build/mvisor -c config/sample.yaml -vnc 5900

Paravirtualized Drivers

An ISO image file is needed to install OS. Edit YAML file to configure image path.

Virtio is recommended for Windows guests:

Download Virtio Guest Tools