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QEMU Emulation Environment Setup

This guide provides a step-by-step walkthrough for setting up a network environment for QEMU, and for running MIPS, MIPSEL, and ARM virtual machines.

1. Setting up the Network Environment

First, we need to install the necessary tools and create a network bridge to allow the virtual machine to communicate with the host.

Prerequisites

Install bridge-utils and uml-utilities:

sudo apt-get update
sudo apt-get install bridge-utils
sudo apt-get install uml-utilities

Configure the Bridge and Tap Interface

  1. Create a bridge interface named Virbr0:

    sudo brctl addbr Virbr0

  2. Assign an IP address to Virbr0 and bring it up:

    sudo ifconfig Virbr0 192.168.153.1/24 up

  3. Create a tap interface named tap0:

    sudo tunctl -t tap0

  4. Assign an IP address to tap0 and bring it up:

    sudo ifconfig tap0 192.168.153.11/24 up

  5. Add the tap0 interface to the Virbr0 bridge:

    sudo brctl addif Virbr0 tap0

2. QEMU Emulation

Download the required disk images and kernel files to run the emulated systems.

Image and Kernel Downloads

  • MIPSEL:

    Bash

    wget https://people.debian.org/~aurel32/qemu/mipsel/debian_wheezy_mipsel_standard.qcow2
wget https://people.debian.org/~aurel32/qemu/mipsel/vmlinux-3.2.0-4-4kc-malta

  • MIPS: (You will need to acquire debian_wheezy_mips_standard.qcow2 separately)

    • Kernel: vmlinux-3.2.0-4-4kc-malta

  • ARM:

Default Credentials:

  • Username: root
  • Password: root

Running the Emulation

  • MIPSEL:

    sudo qemu-system-mipsel -M malta \
    -kernel vmlinux-3.2.0-4-4kc-malta \
    -hda debian_wheezy_mipsel_standard.qcow2 \
    -append "root=/dev/sda1 console=tty0" \
    -netdev tap,id=tapnet,ifname=tap0,script=no \
    -device rtl8139,netdev=tapnet \
    -nographic

  • MIPS:

    sudo qemu-system-mips -M malta \
    -kernel vmlinux-3.2.0-4-4kc-malta \
    -hda debian_wheezy_mips_standard.qcow2 \
    -append "root=/dev/sda1 console=tty0" \
    -netdev tap,id=tapnet,ifname=tap0,script=no \
    -device rtl8139,netdev=tapnet \
    -nographic

  • ARM:

    sudo qemu-system-arm -M vexpress-a9 \
    -kernel vmlinuz-3.2.0-4-vexpress \
    -initrd initrd.img-3.2.0-4-vexpress \
    -drive if=sd,file=debian_wheezy_armhf_standard.qcow2 \
    -append "root=/dev/mmcblk0p2 console=ttyAMA0" \
    -net nic -net tap,ifname=tap0,script=no,downscript=no \
    -nographic

3. Configuring the IP in the Virtual Machine

Once the virtual machine is running, you need to configure its network interface to communicate with the host.

  1. Bring up the eth0 interface and assign an IP address: Note: This IP should be in the same subnet as the bridge on the host.

    ifconfig eth0 192.168.153.2/24 up

    Alternatively, you can create a bridge within the VM:

    ip link add name br0 type bridge
ip addr add 192.168.153.2/24 dev br0
ip link set br0 up
ifconfig br0 192.168.153.2/24

  2. Verify connectivity by pinging the host's tap interface:

    ping 192.168.153.11