Wolfgang Mauerer wrote: > A package without build instructions is like a kernel > without a penguin. Thanks, merged. Jan > > Signed-off-by: Wolfgang Mauerer <wolfgang.mauerer@xxxxxxxxxxx> > --- > README | 37 +++++++++++++++++++++++++++++++++++++ > 1 files changed, 37 insertions(+), 0 deletions(-) > create mode 100644 README > > diff --git a/README b/README > new file mode 100644 > index 0000000..bef7586 > --- /dev/null > +++ b/README > @@ -0,0 +1,37 @@ > +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). > +For out-of-tree module builds, it is well possible that 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. > + > +- 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. > + > + 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.
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