hvisor

Armv8 hypervisor based on Linux & implemented in Rust，porting from RVM1.5 & jailhouse.

🚧 Working In Progress.

Progress

Architecture: aarch64
Platform: Qemu virt aarch64
Exception
Gicv3
Memory
Enable non root linux
VirtIO device: block, net
Architecture: riscv64
Platform: nxp

Build & Run

For detailed build and running tutorials, including building the development environment and creating a file system, please refer to here.

To make it easy to get started, here (extraction code: sysH) provides a Linux kernel Image and a file system ubuntu-20.04-rootfs_ext4.img with the username arm64 and the password as a whitespace. The directories are organized as follows:

├── home
    ├── arm64 
        ├── images: Contains a Linux Image and ramfs.
        ├── hvisor: Files required to run hvisor.
        ├── jailhouse: Files required to run jailhouse.

The following describes how to run a non-root-linux on jailhouse/hvisor based on ubuntu-20.04-rootfs_ext4.img:

Build hvisor.bin:
```
make all
```
Then copy target/aarch64/debug/hvisor.bin to ~/hvisor/ in ubuntu-20.04-rootfs_ext4.img.

Start QEMU:

sudo qemu-system-aarch64 \
    -machine virt,gic_version=3 \
    -machine virtualization=true \
    -cpu cortex-a53 \
    -machine type=virt \
    -nographic \
    -smp 16  \
    -m 1024 \
    -kernel your-linux-Image-path/Image \
    -append "console=ttyAMA0 root=/dev/vda rw mem=768m" \
    -drive if=none,file=your-rootfs-path/ubuntu-20.04-rootfs_ext4.img,id=hd0,format=raw \
    -device virtio-blk-device,drive=hd0 \
    -net nic \
    -net user,hostfwd=tcp::2333-:22

Enter the username arm64 and the password as a whitespace after startup.
Go to the home directory and start non-root-linux:
- For hvisor: go to the hvisor folder and run:
```
./setup.sh
./linux.sh
```
- For Jailhouse: go to the jailhouse folder and run:
```
./linux.sh
```

Enable a second serial console

If someone wants non-root-linux and root-linux in two different terminals, add this line at the end of the qemu startup command:

-device virtio-serial-device -chardev pty,id=serial3 -device virtconsole,chardev=serial3

After starting qemu, the char device redirected to /dev/pts/num (label serial3) message will output by the first terminal, execute this in another terminal:

sudo screen /dev/pts/num

where num is a specific number.