#!/bin/sh -e # # Update Linux kernel headers QEMU requires from a specified kernel tree. # # Copyright (C) 2011 Siemens AG # # Authors: # Jan Kiszka <jan.kiszka@siemens.com> # # This work is licensed under the terms of the GNU GPL version 2. # See the COPYING file in the top-level directory. tmpdir=`mktemp -d` linux="$1" output="$2" if [ -z "$linux" ] || ! [ -d "$linux" ]; then cat << EOF usage: update-kernel-headers.sh LINUX_PATH [OUTPUT_PATH] LINUX_PATH Linux kernel directory to obtain the headers from OUTPUT_PATH output directory, usually the qemu source tree (default: $PWD) EOF exit 1 fi if [ -z "$output" ]; then output="$PWD" fi # This will pick up non-directories too (eg "Kconfig") but we will # ignore them in the next loop. ARCHLIST=$(cd "$linux/arch" && echo *) for arch in $ARCHLIST; do # Discard anything which isn't a KVM-supporting architecture if ! [ -e "$linux/arch/$arch/include/asm/kvm.h" ] && ! [ -e "$linux/arch/$arch/include/uapi/asm/kvm.h" ] ; then continue fi # Blacklist architectures which have KVM headers but are actually dead if [ "$arch" = "ia64" ]; then continue fi make -C "$linux" INSTALL_HDR_PATH="$tmpdir" SRCARCH=$arch headers_install rm -rf "$output/linux-headers/asm-$arch" mkdir -p "$output/linux-headers/asm-$arch" for header in kvm.h kvm_para.h; do cp "$tmpdir/include/asm/$header" "$output/linux-headers/asm-$arch" done if [ $arch = x86 ]; then cp "$tmpdir/include/asm/hyperv.h" "$output/linux-headers/asm-x86" fi if [ $arch = powerpc ]; then cp "$tmpdir/include/asm/epapr_hcalls.h" "$output/linux-headers/asm-powerpc/" fi done rm -rf "$output/linux-headers/linux" mkdir -p "$output/linux-headers/linux" for header in kvm.h kvm_para.h vfio.h vhost.h virtio_config.h virtio_ring.h; do cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux" done rm -rf "$output/linux-headers/asm-generic" mkdir -p "$output/linux-headers/asm-generic" for header in kvm_para.h; do cp "$tmpdir/include/asm-generic/$header" "$output/linux-headers/asm-generic" done if [ -L "$linux/source" ]; then cp "$linux/source/COPYING" "$output/linux-headers" else cp "$linux/COPYING" "$output/linux-headers" fi rm -rf "$tmpdir"