KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). KVM is divided into the KVM-KMOD package (kernel modules) and the QEMU-KVM package (slightly modified QEMU) which are both available as separate Slackbuilds. KVM-KMOD consists of a kernel module, 'kvm.ko', that provides the core virtualization infrastructure and a processor specific module, 'kvm-intel.ko' or 'kvm-amd.ko'. Slackware provides these modules in the 'a/slackware-modules*' packages and the associated headers in the 'd/slackware-headers*' packages. In most cases the Slackware provided versions are sufficient to run QEMU-KVM. KVM-KMOD is only needed if you want to change the KVM modules and headers to a different version. KVM-KMOD updates the modules and headers without overwriting the Slackware provided versions. If you uninstall KVM-KMOD you will need to run 'depmod -a' to regenerate the modules.dep and map files to regain access to the Slackware provided versions.