Prerequisites

Before using KVM, you need to ensure that you have the necessary permissions to access /dev/kvm. This requires adding your user to the kvm group.

Adding Yourself to the kvm Group

Follow these steps to add your user to the kvm group:

1. Check if /dev/kvm is accessible

   Run the following command to check if /dev/kvm exists:

   ls -l /dev/kvm

If it exists, you should see something like this:

crw-rw----+ 1 root kvm 10, 232 Aug 17 12:34 /dev/kvm

Notice that the group associated with /dev/kvm is kvm.

2. Add your user to the kvm group:

Use the following command to add your user to the kvm group:

sudo usermod -aG kvm $USER

Replace $USER with your username if you're not running the command as the intended user.

3. Apply the changes

After adding yourself to the kvm group, you need to log out and log back in for the changes to take effect.

Alternatively, you can apply the changes immediately using:

newgrp kvm

Build

$ git clone https://github.com/x86driver/kvm
$ cd kvm
$ make

Run

cd kvm
./kvm bzImage initramfs-busybox-x86.cpio.gz