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 'input-event-codes' \ 40 -e 'sys/' \ 41 -e 'pvrdma_verbs' \ 42 -e 'drm.h' \ 43 -e 'limits' \ 44 -e 'linux/kernel' \ 45 -e 'linux/sysinfo' \ 46 -e 'asm-generic/kvm_para' \ 47 > /dev/null 48 then 49 echo "Unexpected #include in input file $f". 50 exit 2 51 fi 52 53 header=$(basename "$f"); 54 sed -e 's/__u\([0-9][0-9]*\)/uint\1_t/g' \ 55 -e 's/u\([0-9][0-9]*\)/uint\1_t/g' \ 56 -e 's/__s\([0-9][0-9]*\)/int\1_t/g' \ 57 -e 's/__le\([0-9][0-9]*\)/uint\1_t/g' \ 58 -e 's/__be\([0-9][0-9]*\)/uint\1_t/g' \ 59 -e 's/"\(input-event-codes\.h\)"/"standard-headers\/linux\/\1"/' \ 60 -e 's/<linux\/\([^>]*\)>/"standard-headers\/linux\/\1"/' \ 61 -e 's/__bitwise//' \ 62 -e 's/__attribute__((packed))/QEMU_PACKED/' \ 63 -e 's/__inline__/inline/' \ 64 -e 's/__BITS_PER_LONG/HOST_LONG_BITS/' \ 65 -e '/\"drm.h\"/d' \ 66 -e '/sys\/ioctl.h/d' \ 67 -e 's/SW_MAX/SW_MAX_/' \ 68 -e 's/atomic_t/int/' \ 69 -e 's/__kernel_long_t/long/' \ 70 -e 's/__kernel_ulong_t/unsigned long/' \ 71 -e 's/struct ethhdr/struct eth_header/' \ 72 -e '/\#define _LINUX_ETHTOOL_H/a \\n\#include "net/eth.h"' \ 73 "$f" > "$to/$header"; 74} 75 76# This will pick up non-directories too (eg "Kconfig") but we will 77# ignore them in the next loop. 78ARCHLIST=$(cd "$linux/arch" && echo *) 79 80for arch in $ARCHLIST; do 81 # Discard anything which isn't a KVM-supporting architecture 82 if ! [ -e "$linux/arch/$arch/include/asm/kvm.h" ] && 83 ! [ -e "$linux/arch/$arch/include/uapi/asm/kvm.h" ] ; then 84 continue 85 fi 86 87 if [ "$arch" = x86 ]; then 88 arch_var=SRCARCH 89 else 90 arch_var=ARCH 91 fi 92 93 make -C "$linux" INSTALL_HDR_PATH="$tmpdir" $arch_var=$arch headers_install 94 95 rm -rf "$output/linux-headers/asm-$arch" 96 mkdir -p "$output/linux-headers/asm-$arch" 97 for header in kvm.h unistd.h bitsperlong.h; do 98 cp "$tmpdir/include/asm/$header" "$output/linux-headers/asm-$arch" 99 done 100 101 if [ $arch = mips ]; then 102 cp "$tmpdir/include/asm/sgidefs.h" "$output/linux-headers/asm-mips/" 103 fi 104 105 rm -rf "$output/include/standard-headers/asm-$arch" 106 mkdir -p "$output/include/standard-headers/asm-$arch" 107 if [ $arch = s390 ]; then 108 cp_portable "$tmpdir/include/asm/virtio-ccw.h" "$output/include/standard-headers/asm-s390/" 109 cp "$tmpdir/include/asm/unistd_32.h" "$output/linux-headers/asm-s390/" 110 cp "$tmpdir/include/asm/unistd_64.h" "$output/linux-headers/asm-s390/" 111 fi 112 if [ $arch = arm ]; then 113 cp "$tmpdir/include/asm/unistd-eabi.h" "$output/linux-headers/asm-arm/" 114 cp "$tmpdir/include/asm/unistd-oabi.h" "$output/linux-headers/asm-arm/" 115 cp "$tmpdir/include/asm/unistd-common.h" "$output/linux-headers/asm-arm/" 116 fi 117 if [ $arch = x86 ]; then 118 cp "$tmpdir/include/asm/unistd_32.h" "$output/linux-headers/asm-x86/" 119 cp "$tmpdir/include/asm/unistd_x32.h" "$output/linux-headers/asm-x86/" 120 cp "$tmpdir/include/asm/unistd_64.h" "$output/linux-headers/asm-x86/" 121 cp_portable "$tmpdir/include/asm/kvm_para.h" "$output/include/standard-headers/asm-$arch" 122 fi 123done 124 125rm -rf "$output/linux-headers/linux" 126mkdir -p "$output/linux-headers/linux" 127for header in kvm.h vfio.h vfio_ccw.h vhost.h \ 128 psci.h psp-sev.h userfaultfd.h; do 129 cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux" 130done 131 132rm -rf "$output/linux-headers/asm-generic" 133mkdir -p "$output/linux-headers/asm-generic" 134for header in unistd.h bitsperlong.h; do 135 cp "$tmpdir/include/asm-generic/$header" "$output/linux-headers/asm-generic" 136done 137 138if [ -L "$linux/source" ]; then 139 cp "$linux/source/COPYING" "$output/linux-headers" 140else 141 cp "$linux/COPYING" "$output/linux-headers" 142fi 143 144cat <<EOF >$output/linux-headers/linux/virtio_config.h 145#include "standard-headers/linux/virtio_config.h" 146EOF 147cat <<EOF >$output/linux-headers/linux/virtio_ring.h 148#include "standard-headers/linux/virtio_ring.h" 149EOF 150 151rm -rf "$output/include/standard-headers/linux" 152mkdir -p "$output/include/standard-headers/linux" 153for i in "$tmpdir"/include/linux/*virtio*.h "$tmpdir/include/linux/input.h" \ 154 "$tmpdir/include/linux/input-event-codes.h" \ 155 "$tmpdir/include/linux/pci_regs.h" \ 156 "$tmpdir/include/linux/ethtool.h" "$tmpdir/include/linux/kernel.h" \ 157 "$tmpdir/include/linux/sysinfo.h"; do 158 cp_portable "$i" "$output/include/standard-headers/linux" 159done 160mkdir -p "$output/include/standard-headers/drm" 161cp_portable "$tmpdir/include/drm/drm_fourcc.h" \ 162 "$output/include/standard-headers/drm" 163 164rm -rf "$output/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma" 165mkdir -p "$output/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma" 166 167# Remove the unused functions from pvrdma_verbs.h avoiding the unnecessary 168# import of several infiniband/networking/other headers 169tmp_pvrdma_verbs="$tmpdir/pvrdma_verbs.h" 170# Parse the entire file instead of single lines to match 171# function declarations expanding over multiple lines 172# and strip the declarations starting with pvrdma prefix. 173sed -e '1h;2,$H;$!d;g' -e 's/[^};]*pvrdma[^(| ]*([^)]*);//g' \ 174 "$linux/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h" > \ 175 "$tmp_pvrdma_verbs"; 176 177for i in "$linux/drivers/infiniband/hw/vmw_pvrdma/pvrdma_ring.h" \ 178 "$linux/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h" \ 179 "$tmp_pvrdma_verbs"; do \ 180 cp_portable "$i" \ 181 "$output/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/" 182done 183 184rm -rf "$output/include/standard-headers/rdma/" 185mkdir -p "$output/include/standard-headers/rdma/" 186for i in "$tmpdir/include/rdma/vmw_pvrdma-abi.h"; do 187 cp_portable "$i" \ 188 "$output/include/standard-headers/rdma/" 189done 190 191cat <<EOF >$output/include/standard-headers/linux/types.h 192/* For QEMU all types are already defined via osdep.h, so this 193 * header does not need to do anything. 194 */ 195EOF 196cat <<EOF >$output/include/standard-headers/linux/if_ether.h 197#define ETH_ALEN 6 198EOF 199 200rm -rf "$tmpdir" 201