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 ✅
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) ✅
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 Midi ✅ / USB Wacom ✅

Hyper-V & Migration

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

Compile & Run

For RockyLinux 9.3,

dnf install epel-release gdb
dnf --enablerepo=devel install -y gcc-c++ glib2-devel pixman-devel SDL2-devel yaml-cpp-devel libuuid-devel protobuf-devel protobuf-compiler libzstd-devel zlib-devel alsa-lib-devel libjpeg-devel opus-devel

meson setup build
meson compile -C build

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

An ISO image file is needed to install OS. Modify config/default.yaml to configure image path.

Virtio is recommended:

Download Virtio Guest Tools