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 31cp_portable() { 32 f=$1 33 to=$2 34 if 35 grep '#include' "$f" | grep -v -e 'linux/virtio' \ 36 -e 'linux/types' \ 37 -e 'stdint' \ 38 -e 'linux/if_ether' \ 39 -e 'sys/' \ 40 > /dev/null 41 then 42 echo "Unexpected #include in input file $f". 43 exit 2 44 fi 45 46 header=$(basename "$f"); 47 sed -e 's/__u\([0-9][0-9]*\)/uint\1_t/g' \ 48 -e 's/__s\([0-9][0-9]*\)/int\1_t/g' \ 49 -e 's/__le\([0-9][0-9]*\)/uint\1_t/g' \ 50 -e 's/__be\([0-9][0-9]*\)/uint\1_t/g' \ 51 -e 's/<linux\/\([^>]*\)>/"standard-headers\/linux\/\1"/' \ 52 -e 's/__bitwise__//' \ 53 -e 's/__attribute__((packed))/QEMU_PACKED/' \ 54 -e 's/__inline__/inline/' \ 55 -e '/sys\/ioctl.h/d' \ 56 -e 's/SW_MAX/SW_MAX_/' \ 57 "$f" > "$to/$header"; 58} 59 60# This will pick up non-directories too (eg "Kconfig") but we will 61# ignore them in the next loop. 62ARCHLIST=$(cd "$linux/arch" && echo *) 63 64for arch in $ARCHLIST; do 65 # Discard anything which isn't a KVM-supporting architecture 66 if ! [ -e "$linux/arch/$arch/include/asm/kvm.h" ] && 67 ! [ -e "$linux/arch/$arch/include/uapi/asm/kvm.h" ] ; then 68 continue 69 fi 70 71 # Blacklist architectures which have KVM headers but are actually dead 72 if [ "$arch" = "ia64" ]; then 73 continue 74 fi 75 76 make -C "$linux" INSTALL_HDR_PATH="$tmpdir" SRCARCH=$arch headers_install 77 78 rm -rf "$output/linux-headers/asm-$arch" 79 mkdir -p "$output/linux-headers/asm-$arch" 80 for header in kvm.h kvm_para.h; do 81 cp "$tmpdir/include/asm/$header" "$output/linux-headers/asm-$arch" 82 done 83 if [ $arch = powerpc ]; then 84 cp "$tmpdir/include/asm/epapr_hcalls.h" "$output/linux-headers/asm-powerpc/" 85 fi 86 87 rm -rf "$output/include/standard-headers/asm-$arch" 88 mkdir -p "$output/include/standard-headers/asm-$arch" 89 if [ $arch = s390 ]; then 90 cp_portable "$tmpdir/include/asm/kvm_virtio.h" "$output/include/standard-headers/asm-s390/" 91 cp_portable "$tmpdir/include/asm/virtio-ccw.h" "$output/include/standard-headers/asm-s390/" 92 fi 93 if [ $arch = x86 ]; then 94 cp_portable "$tmpdir/include/asm/hyperv.h" "$output/include/standard-headers/asm-x86/" 95 fi 96done 97 98rm -rf "$output/linux-headers/linux" 99mkdir -p "$output/linux-headers/linux" 100for header in kvm.h kvm_para.h vfio.h vhost.h \ 101 psci.h; do 102 cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux" 103done 104rm -rf "$output/linux-headers/asm-generic" 105mkdir -p "$output/linux-headers/asm-generic" 106for header in kvm_para.h; do 107 cp "$tmpdir/include/asm-generic/$header" "$output/linux-headers/asm-generic" 108done 109if [ -L "$linux/source" ]; then 110 cp "$linux/source/COPYING" "$output/linux-headers" 111else 112 cp "$linux/COPYING" "$output/linux-headers" 113fi 114 115cat <<EOF >$output/linux-headers/asm-x86/hyperv.h 116#include "standard-headers/asm-x86/hyperv.h" 117EOF 118cat <<EOF >$output/linux-headers/linux/virtio_config.h 119#include "standard-headers/linux/virtio_config.h" 120EOF 121cat <<EOF >$output/linux-headers/linux/virtio_ring.h 122#include "standard-headers/linux/virtio_ring.h" 123EOF 124 125rm -rf "$output/include/standard-headers/linux" 126mkdir -p "$output/include/standard-headers/linux" 127for i in "$tmpdir"/include/linux/*virtio*.h "$tmpdir/include/linux/input.h" \ 128 "$tmpdir/include/linux/pci_regs.h"; do 129 cp_portable "$i" "$output/include/standard-headers/linux" 130done 131 132cat <<EOF >$output/include/standard-headers/linux/types.h 133#include <stdint.h> 134#include "qemu/compiler.h" 135EOF 136cat <<EOF >$output/include/standard-headers/linux/if_ether.h 137#define ETH_ALEN 6 138EOF 139 140rm -rf "$tmpdir" 141