IntroVirt KVM module
kvm-introvirt can be installed from prebuilt packages using the PPA for Ubuntu bionic and focal. Shut down any running VMs first, and then run:
sudo add-apt-repository ppa:srpape/introvirt
sudo apt-get update
sudo apt-get install kvm-introvirt
You will have to boot into the kernel that the kvm-introvirt module is built for, if the latest package does not match what your system is running.
Install dependencies:
sudo apt-get install bc devscripts quilt git flex bison libssl-dev libelf-dev debhelper
Install the headers and modules for your target kernel
sudo apt-get install linux-headers-<version> linux-modules-<version>
Clone and build the module
git clone https://github.com/IntroVirt/kvm-introvirt.git
git checkout ubuntu/focal/<version>
./configure
make
sudo make install
Reload the KVM module
sudo rmmod kvm-intel kvm
sudo modprobe kvm-intel
The kernel module is built based on the branch name. To support a new version, reset the environment and create a new branch:
make distclean
git reset --hard
git clean -x -d -f
git checkout -b ubuntu/focal/<version>
When running ./configure, quilt will attempt to apply the patch to the new target kernel. If the patch does not cleanly apply, you will need to update it.