1#!/bin/sh -e 2# 3# Update Linux kernel headers QEMU requires from a specified kernel tree. 4# 5# Copyright (C) 2011 Siemens AG 6# 7# Authors: 8# Jan Kiszka <jan.kiszka@siemens.com> 9# 10# This work is licensed under the terms of the GNU GPL version 2. 11# See the COPYING file in the top-level directory. 12 13tmpdir=`mktemp -d` 14linux="$1" 15output="$2" 16 17if [ -z "$linux" ] || ! [ -d "$linux" ]; then 18 cat << EOF 19usage: update-kernel-headers.sh LINUX_PATH [OUTPUT_PATH] 20 21LINUX_PATH Linux kernel directory to obtain the headers from 22OUTPUT_PATH output directory, usually the qemu source tree (default: $PWD) 23EOF 24 exit 1 25fi 26 27if [ -z "$output" ]; then 28 output="$PWD" 29fi 30 31# This will pick up non-directories too (eg "Kconfig") but we will 32# ignore them in the next loop. 33ARCHLIST=$(cd "$linux/arch" && echo *) 34 35for arch in $ARCHLIST; do 36 # Discard anything which isn't a KVM-supporting architecture 37 if ! [ -e "$linux/arch/$arch/include/asm/kvm.h" ] && 38 ! [ -e "$linux/arch/$arch/include/uapi/asm/kvm.h" ] ; then 39 continue 40 fi 41 42 # Blacklist architectures which have KVM headers but are actually dead 43 if [ "$arch" = "ia64" ]; then 44 continue 45 fi 46 47 make -C "$linux" INSTALL_HDR_PATH="$tmpdir" SRCARCH=$arch headers_install 48 49 rm -rf "$output/linux-headers/asm-$arch" 50 mkdir -p "$output/linux-headers/asm-$arch" 51 for header in kvm.h kvm_para.h; do 52 cp "$tmpdir/include/asm/$header" "$output/linux-headers/asm-$arch" 53 done 54 if [ $arch = x86 ]; then 55 cp "$tmpdir/include/asm/hyperv.h" "$output/linux-headers/asm-x86" 56 fi 57 if [ $arch = powerpc ]; then 58 cp "$tmpdir/include/asm/epapr_hcalls.h" "$output/linux-headers/asm-powerpc/" 59 fi 60done 61 62rm -rf "$output/linux-headers/linux" 63mkdir -p "$output/linux-headers/linux" 64for header in kvm.h kvm_para.h vfio.h vhost.h virtio_config.h virtio_ring.h \ 65 psci.h; do 66 cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux" 67done 68rm -rf "$output/linux-headers/asm-generic" 69mkdir -p "$output/linux-headers/asm-generic" 70for header in kvm_para.h; do 71 cp "$tmpdir/include/asm-generic/$header" "$output/linux-headers/asm-generic" 72done 73if [ -L "$linux/source" ]; then 74 cp "$linux/source/COPYING" "$output/linux-headers" 75else 76 cp "$linux/COPYING" "$output/linux-headers" 77fi 78 79rm -rf "$tmpdir" 80