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kvm-kmod Quickstart ------------------- ./configure make make install Build Details ------------- Building the KVM kernel module is performed differently depending on whether you are working from a clone of the git repository or from a source release. Notice that two kernels are involved: One from which the KVM sources are taken (kernel A), and one for which the module is built (kernel B). In almost all cases, kernel A is more recent than kernel B. - To build from a release (this is the default case), simply use ./configure (possibly with any arguments that are required for your setup, see ./configure --help) and make. The kernel specified with --kerneldir refers to kernel B, that is, the kernel for which the module is built. All sources required from kernel A are already included in the release. - Building from a cloned git repository (most likely useful for developers only) requires a kernel tree with the main kvm sources (kernel A) that is included as a submodule in the linux-2.6/ directory. By default, the KVM development tree on git.kernel.org is used, but this can be changed in the git configuration after the 'submodule init' step. Before the kvm module can be built, the linux submodule must be initialised and populated. The required sequence of commands is git submodule init git submodule update ./configure make sync make Notice that you can also specify an existing Linux tree for the synchronisation stage by using make sync LINUX=/path/to/kernel/A LINUX specifies the path to kernel A from which the KVM sources are taken. The directory must point to a local git tree, not to a plain directory containing the kernel sources. If LINUX is unset, the default value is linux-2.6/, i.e., the git submodule. Note that configure may refuse to build against your target kernel if it considers it too new or too old. If you know what you are doing, you can override this check by passing --force.