VirtualBox - ArchWiki - Arch Linux
https://wiki.archlinux.org/title/VirtualBoxRead from VirtualBox/Install Arch Linux as a guest#Install the Guest Additions if your guest is Arch Linux, otherwise read the official VirtualBox help. No 64-bit OS client options When launching a VM client, and no 64-bit options are available, make sure your CPU virtualization capabilities (usually named VT-x ) are enabled in the BIOS.
VirtualBox - ArchWiki - Arch Linux
wiki.archlinux.org › title › VirtualBoxInstallation steps for Arch Linux hosts. In order to launch VirtualBox virtual machines on your Arch Linux box, follow these installation steps. Install the core packages. Install the virtualbox package. You will also need to choose a package to provide host modules: for the linux kernel, choose virtualbox-host-modules-arch